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WO2016119228A1 - 一种异步上行的方法、终端及基站 - Google Patents

一种异步上行的方法、终端及基站 Download PDF

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Publication number
WO2016119228A1
WO2016119228A1 PCT/CN2015/071971 CN2015071971W WO2016119228A1 WO 2016119228 A1 WO2016119228 A1 WO 2016119228A1 CN 2015071971 W CN2015071971 W CN 2015071971W WO 2016119228 A1 WO2016119228 A1 WO 2016119228A1
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WO
WIPO (PCT)
Prior art keywords
information
base station
uplink
terminal
asynchronous transmission
Prior art date
Application number
PCT/CN2015/071971
Other languages
English (en)
French (fr)
Inventor
权威
李秉肇
胡振兴
张戬
苗金华
杨晓东
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201580002021.XA priority Critical patent/CN107534952B/zh
Priority to PCT/CN2015/071971 priority patent/WO2016119228A1/zh
Priority to CN202010774159.4A priority patent/CN112073150B/zh
Priority to JP2017540233A priority patent/JP2018507629A/ja
Priority to EP15879436.2A priority patent/EP3244674B1/en
Priority to AU2015380135A priority patent/AU2015380135B2/en
Publication of WO2016119228A1 publication Critical patent/WO2016119228A1/zh
Priority to US15/663,337 priority patent/US10491420B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42Loop networks
    • H04L12/427Loop networks with decentralised control
    • H04L12/433Loop networks with decentralised control with asynchronous transmission, e.g. token ring, register insertion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0866Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • H04W74/0883Non-scheduled access, e.g. ALOHA using a dedicated channel for access for un-synchronized access

Definitions

  • the present invention relates to the field of communications, and in particular, to an asynchronous uplink method, a terminal, and a base station.
  • terminal and network synchronization are mainly two processes, one is frame synchronization, one is time synchronization, frame synchronization refers to downlink synchronization, and time synchronization refers to uplink synchronization, for example, in LTE (Long Time Evolution, long-term In the evolution, when the uplink signals of different UEs (User Equipments) arrive at the eNB (evolved Node B), time alignment is required to reduce the interference of uplink signals between UEs, if the UE is far away during the call. When the direction of the base station moves, the signal sent from the base station will arrive at the UE "later and later".
  • LTE Long Time Evolution, long-term In the evolution
  • UEs User Equipments
  • eNB evolved Node B
  • the signal of the UE will arrive at the base station "later and later", and the delay will be too long, which will result in the base station receiving.
  • the signal of the UE on the time slot and the time slot of the base station receiving another UE signal overlap each other, causing inter-symbol interference.
  • the time alignment of the uplink transmission is implemented by applying TA (Timing Advance) on the UE side, and the TA can let the UE send signals in advance.
  • TA Timing Advance
  • establishing a communication connection between a UE and an eNB includes a contention based random access procedure and a non-contention based random access procedure.
  • the step of the contention-based random access procedure is: in the first step, the UE randomly selects a preamble, and sends a preamble to the eNB on an available PRACH (Physical Random Access Channel) resource; After receiving the preamble, the eNB sends a random access response (RAR) message to the UE, where the message carries the uplink grant information and the UE uplink timing advance information.
  • PRACH Physical Random Access Channel
  • the third step is The UE sends an uplink message to the eNB according to the uplink grant and the timing advance information in the RAR, where the uplink message includes the content that can identify the UE.
  • the eNB sends a contention resolution message to the UE, and the UE determines the random according to the contention resolution message. Whether the access process was successfully completed.
  • the non-contention-based random access procedure is: the first step, that is, the eNB configures a dedicated preamble for the UE, and optionally includes a PRACH resource that transmits the preamble; and in the second step, the UE sends the available PRACH resource.
  • a dedicated preamble is sent to the eNB.
  • the eNB After receiving the preamble, the eNB sends a random access response message (RAR) to the UE, where the message carries the uplink grant information, and the UE uplink timing advance information; the UE receives the corresponding After the random access response message, it is considered that the random access process is successfully completed and then executed. Subsequent data transceiving process.
  • RAR random access response message
  • Step 1 After the uplink data arrives, the UE will trigger a BSR (Buffer Status Report) when a certain condition is met. If no uplink resource is sent to the BSR, the SR (Scheduling) is triggered. Request, scheduling request, the SR indicates that the UE has uplink data triggering the BSR and needs to be sent; Step 2: After receiving the SR, the eNB can only determine that the UE has uplink data to be sent, but does not know any other data cached by the UE.
  • BSR Buffer Status Report
  • the information is allocated to the uplink resource according to the scheduling algorithm, and the UL Grant (Up Load Grant) notification is sent to the UE for the uplink resource allocated by the UE.
  • Step 3 After the UE receives the UL Grant, the UE allocates the uplink resource.
  • the BSR is sent to the eNB to inform the eNB of the current amount of uplink data buffered.
  • Step 4 After receiving the BSR, the eNB knows the uplink data volume of the UE more accurately, and allocates appropriate uplink resources to the UE according to the scheduling algorithm.
  • the UE sends a UL Grant (uplink authorization) notification to the uplink resource allocated to it; Step 5: After receiving the UL Grant, the UE performs uplink data on the uplink resource allocated for the UE. Lose. However, some UEs do not have dedicated SR resources. If the UE does not have dedicated SR resources, or the UE is in an out-of-synchronization state, it needs to use the random access procedure to request uplink data transmission resources. When the UE has uplink data transmission, Need to request resources or establish RRC connection and data bearer first, which greatly increases signaling overhead and delay.
  • UL Grant uplink authorization
  • the embodiment of the present invention provides a method, a terminal, and a base station for asynchronous uplink, which can reduce the delay of uplink data transmission and the signaling overhead when the terminal and the base station are in an out-of-synchronization state.
  • a first aspect of the embodiments of the present invention provides a method for asynchronous uplink, including:
  • the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of the physical resource frame;
  • the first uplink information includes at least one of a buffer status report, data information, and a terminal identifier, when the base station is in a radio resource control RRC connection state;
  • the first uplink information includes at least one of an RRC connection request message, data information, and a terminal identifier.
  • the first uplink information includes at least one of an RRC connection reestablishment request message, data information, a buffer status report, and a terminal identifier.
  • the asynchronous transmission parameter information further includes condition information for transmitting data by using a physical resource.
  • the sending the first uplink information to the base station by using the asynchronous transmission frame according to the asynchronous transmission parameter information includes:
  • the data information that meets the condition for transmitting the physical resource data uses the data transmission unit of the asynchronous transmission frame to transmit the first uplink information to the base station.
  • the physical resource frame length information includes:
  • Length information of at least one of a frame header, a data transmission portion, and a frame tail and/or total length information of the physical resource frame is not limited to a frame header, a data transmission portion, and a frame tail and/or total length information of the physical resource frame.
  • the asynchronous transmission parameter information further includes: period information, used to indicate the use The period of physical resources.
  • the asynchronous transmission frame is used to send the first to the base station according to the asynchronous transmission parameter information.
  • the method further includes:
  • the downlink information further includes Synchronizing an uplink grant message and/or identification information of the terminal;
  • the downlink information further includes an RRC connection setup message
  • the downlink information When performing radio resource control RRC connection reestablishment with the base station, the downlink information further includes a synchronization uplink grant message and/or an RRC connection reestablishment message.
  • the method after receiving the downlink information sent by the base station, the method further includes:
  • the timing adjustment command is applied to start the timing adjustment timer, and the second uplink information is sent to the base station according to the synchronous uplink grant message, where the second uplink information includes data. information;
  • the second uplink information is sent to the base station according to the RRC connection setup message, where the second uplink information includes an RRC connection setup complete message;
  • the base station When performing radio resource control RRC connection reestablishment with the base station, transmitting second uplink information to the base station according to the RRC connection reestablishment message, where the second uplink information includes an RRC connection reestablishment complete message and/or data information.
  • the asynchronous transmission frame further includes a physical random access channel PRACH resource unit.
  • the method further includes:
  • the sending the first uplink information to the base station by using the asynchronous transmission frame according to the asynchronous transmission parameter information further includes:
  • the method further includes:
  • the base station Receiving a random access response message sent by the base station, where the random access response message includes synchronous uplink grant information and uplink timing advance information;
  • Applying the random access response message sending second uplink information to the base station, where the second uplink information includes data information.
  • the method further includes:
  • the method further includes:
  • the base station Receiving a random access response message sent by the base station, where the random access response message includes synchronous uplink grant information and uplink timing advance information;
  • Applying the random access response message sending second uplink information to the base station, where the second uplink information includes data information.
  • the acquiring the asynchronous transmission parameter information that is the same as the base station includes:
  • a second aspect of the embodiments of the present invention provides a method for asynchronous uplink, including:
  • the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of the physical resource frame;
  • the receiving terminal uses the first uplink information sent by the asynchronous transmission frame according to the asynchronous transmission parameter.
  • the first uplink information includes a buffer status report, At least one of data information and terminal identification;
  • the first uplink information includes at least one of an RRC connection request message, data information, and a terminal identifier.
  • the first uplink information includes at least one of an RRC connection reestablishment request message, data information, a buffer status report, and a terminal identifier.
  • the asynchronous transmission parameter information further includes: using the physical resource to transmit data Condition information
  • the receiving, by the terminal, the first uplink information that is sent by using the asynchronous transmission frame according to the asynchronous transmission parameter includes:
  • the physical resource frame length information includes:
  • the asynchronous transmission parameter information further includes: period information, used to indicate the location The period of the physical resource.
  • the receiving, by the terminal, the first uplink sent by using the asynchronous transmission frame according to the asynchronous transmission parameter further includes:
  • the downlink information includes an uplink timing adjustment command and a positive confirmation of the first uplink information
  • the downlink information further includes a synchronization uplink grant message and/or identifier information of the terminal;
  • the downlink information is further Including an RRC connection setup message
  • the downlink information further includes a synchronization uplink grant message and/or an RRC connection reestablishment message.
  • the method further includes:
  • the terminal Receiving, by the terminal, the second uplink information according to the synchronous uplink grant message, where the terminal and the base station are in a radio resource control RRC connection state, where the second uplink information includes data information;
  • the receiving terminal When the terminal and the base station are in the radio resource control RRC idle state, the receiving terminal sends a second uplink information according to the RRC connection setup message, where the second uplink information includes an RRC connection setup complete message;
  • the receiving terminal sends a second uplink information according to the RRC connection reestablishment message, where the second uplink information includes an RRC connection reestablishment complete message and/or data information.
  • the asynchronous transmission frame further includes a physical random access channel PRACH resource unit.
  • the receiving, by the terminal, the first uplink information that is sent by using the asynchronous transmission frame according to the asynchronous transmission parameter further includes:
  • the random access response message includes synchronous uplink grant information and uplink timing advance information
  • the method further includes:
  • the random access response message includes synchronous uplink grant information and uplink timing advance information
  • the method further includes:
  • the asynchronous transmission parameter information is notified to the terminal by using at least one of a radio resource control RRC layer message, a transmission medium access control layer message, a sending physical layer message, and a protocol pre-configuration.
  • a third aspect of the embodiments of the present invention provides a terminal, including:
  • a first acquiring unit configured to acquire the same asynchronous transmission parameter information as the base station, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes a physical resource frame. Length information;
  • a first determining unit configured to determine, according to the physical resource frame format information, a length of the asynchronous transmission frame
  • the first sending unit is configured to send the first uplink information to the base station by using the asynchronous transmission frame according to the asynchronous transmission parameter information.
  • the first uplink information when the base station is in a radio resource control RRC connection state, includes a buffer status report and data. At least one of information and terminal identification;
  • the first uplink information includes at least one of an RRC connection request message, data information, and a terminal identifier.
  • the first uplink information includes at least one of an RRC connection reestablishment request message, data information, a buffer status report, and a terminal identifier.
  • the asynchronous transmission parameter information further includes using physical resource transmission.
  • Conditional information of the data
  • the first sending unit includes:
  • the first sending module is configured to send the first uplink information to the base station by using the data transmission unit to use the data transmission unit to meet the condition of the physical resource transmission data.
  • the physical resource frame length information includes:
  • Length information of at least one of a frame header, a data transmission portion, and a frame tail and/or total length information of the physical resource frame is not limited to a frame header, a data transmission portion, and a frame tail and/or total length information of the physical resource frame.
  • the asynchronous transmission parameter information further includes: period information, used to indicate the use.
  • the asynchronous transmission frame is used to send the first to the base station according to the asynchronous transmission parameter information.
  • the terminal further includes:
  • a first receiving unit configured to receive downlink information sent by the base station, where the downlink information includes an uplink timing adjustment command and a positive confirmation of the first uplink information
  • the downlink information further includes a synchronization uplink grant message and/or identifier information of the terminal;
  • the downlink information further includes an RRC connection setup message
  • the downlink information When performing radio resource control RRC connection reestablishment with the base station, the downlink information further includes a synchronization uplink grant message and/or an RRC connection reestablishment message.
  • the terminal after receiving the downlink information sent by the base station, the terminal further includes:
  • a first application unit configured to: when a radio resource control RRC connection state is performed with the base station, apply a timing adjustment command to start a timing adjustment timer;
  • a second sending unit configured to be in a radio resource control RRC connection state with the base station, Sending, to the base station, second uplink information according to the synchronous uplink grant message, where the second uplink information includes data information;
  • the second uplink information is sent to the base station according to the RRC connection setup message, where the second uplink information includes an RRC connection setup complete message;
  • the base station When performing radio resource control RRC connection reestablishment with the base station, transmitting second uplink information to the base station according to the RRC connection reestablishment message, where the second uplink information includes an RRC connection reestablishment complete message and/or data information.
  • the asynchronous transmission frame further includes a physical random access channel PRACH resource unit.
  • the terminal Before the first uplink information is sent to the base station by using the asynchronous transmission frame according to the asynchronous transmission parameter information, the terminal further includes:
  • a second acquiring unit configured to acquire a preamble
  • the first sending unit further includes:
  • a second sending module configured to send the preamble to the base station by using the PRACH resource unit
  • the method further includes:
  • a second receiving unit configured to receive a random access response message sent by the base station, where the random access response message includes synchronous uplink grant information and uplink timing advance information;
  • a second application unit configured to apply the random access response message
  • the third sending unit is configured to send second uplink information to the base station, where the second uplink information includes data information.
  • the terminal further includes:
  • a third acquiring unit configured to acquire a preamble
  • the first sending module further includes:
  • a third sending module configured to send the preamble to the base station by using a physical random access channel PRACH resource, where the physical random access channel PRACH resource and the asynchronous transmission frame are in a time domain Align up
  • the method further includes:
  • a third receiving unit configured to receive a random access response message sent by the base station, where the random access response message includes synchronous uplink grant information and uplink timing advance information;
  • a third application unit configured to apply the random access response message
  • the fourth sending unit is configured to send second uplink information to the base station, where the second uplink information includes data information.
  • the first acquiring unit further includes:
  • the first acquiring module is configured to obtain, by receiving, at least one of a radio resource control RRC layer message, a receiving media access control layer message, a receiving physical layer message, and a protocol pre-configuration.
  • a fourth aspect of the embodiments of the present invention provides a base station, including:
  • a second determining unit configured to determine asynchronous transmission parameter information, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of a physical resource frame;
  • the fourth receiving unit is configured to receive, by the terminal, the first uplink information that is sent by using the asynchronous transmission frame according to the asynchronous transmission parameter.
  • the first uplink information includes a buffer status report, At least one of data information and terminal identification;
  • the first uplink information includes at least one of an RRC connection request message, data information, and a terminal identifier.
  • the first uplink information includes at least one of an RRC connection reestablishment request message, data information, a buffer status report, and a terminal identifier.
  • the asynchronous transmission parameter information further includes condition information that uses a physical resource to transmit data
  • the fourth receiving unit includes:
  • the fourth receiving module is configured to receive, by using the data information that meets the condition for transmitting the physical resource, the first uplink information that is sent by the data transmission unit in the asynchronous transmission frame.
  • the physical resource frame length information includes:
  • the asynchronous transmission parameter information further includes: period information, used to indicate the use.
  • the base station further includes:
  • a fifth sending unit configured to send downlink information to the terminal, where the downlink information includes an uplink timing adjustment command and a positive confirmation of the first uplink information
  • the downlink information further includes a synchronization uplink grant message and/or identifier information of the terminal;
  • the downlink information further includes an RRC connection setup message
  • the downlink information further includes a synchronization uplink grant message and/or an RRC connection reestablishment message.
  • the base station after the downlink information is sent to the terminal, the base station further includes:
  • a fifth receiving unit configured to: when the terminal and the base station are in a radio resource control RRC connection state, receive the second uplink information sent by the terminal according to the synchronous uplink grant message, where the second uplink information Row information includes data information;
  • the receiving terminal When the terminal and the base station are in the radio resource control RRC idle state, the receiving terminal sends a second uplink information according to the RRC connection setup message, where the second uplink information includes an RRC connection setup complete message;
  • the receiving terminal sends a second uplink information according to the RRC connection reestablishment message, where the second uplink information includes an RRC connection reestablishment complete message and/or data information.
  • the asynchronous transmission frame further includes a physical random access channel PRACH resource unit.
  • the fourth receiving unit further includes:
  • a fifth receiving module configured to receive a preamble sent by the terminal by using the PRACH resource unit
  • a sixth sending unit configured to send a random access response message to the terminal, where the random access response message includes synchronous uplink grant information and uplink timing advance information;
  • the sixth receiving unit is configured to receive second uplink information sent by the terminal, where the second uplink information includes data information.
  • the base station further includes:
  • a seventh receiving unit configured to receive a preamble sent by the terminal by using a random access channel PRACH resource, where the PRACH resource is aligned with the asynchronous transmission frame in a time domain;
  • the random access response message includes synchronous uplink grant information and uplink timing advance information
  • the base station after determining the asynchronous transmission parameter information, the base station further includes:
  • a notification unit configured to send the asynchronous transmission parameter information to at least one of a radio resource control RRC layer message, a sending media access control layer message, a sending physical layer message, and a protocol pre-configuration One way to inform the terminal.
  • a second aspect of the present invention provides a method comprising:
  • the embodiment of the present invention provides a method for asynchronous uplink, which is used to reduce the delay of uplink data transmission and the signaling overhead when the terminal and the base station are in an out-of-synchronization state, including: acquiring the same asynchronous transmission parameter information as the base station.
  • the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of a physical resource frame, and the length of the asynchronous transmission frame is determined according to the physical resource frame format information. And transmitting the first uplink information to the base station by using the asynchronous transmission frame according to the asynchronous transmission parameter information.
  • the length of the asynchronous transmission frame determined by the terminal according to the asynchronous transmission frame format information in the asynchronous transmission parameter information is the same as the length of the asynchronous transmission frame determined by the base station, so even if it is lost
  • the base station can also receive the first uplink information, thereby implementing data uplink, without first establishing an RRC connection through signaling. In order to carry out the data uplink. In this way, the delay of uplink data transmission and the overhead of signaling when the out-of-synchronization state is reduced.
  • FIG. 1 is a schematic diagram of an embodiment of an asynchronous uplink terminal according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of another embodiment of an asynchronous uplink terminal according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of another embodiment of an asynchronous uplink terminal according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of an embodiment of a base station for asynchronous uplink in an embodiment of the present invention
  • FIG. 5 is a schematic diagram of another embodiment of a base station for asynchronous uplink according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of another embodiment of a base station for asynchronous uplink according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of another embodiment of an asynchronous uplink terminal according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of another embodiment of a base station for asynchronous uplink according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of an embodiment of a method for asynchronous uplink according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of an embodiment of a method for asynchronous uplink in an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of an embodiment of a method for asynchronous uplink according to an embodiment of the present disclosure
  • FIG. 12 is a schematic diagram of an embodiment of a method for asynchronous uplink according to an embodiment of the present disclosure
  • FIG. 13 is a schematic diagram of an embodiment of a method for asynchronous uplink according to an embodiment of the present invention.
  • FIG. 14 is a schematic diagram of an embodiment of a method for asynchronous uplink in an embodiment of the present invention.
  • FIG. 15 is a schematic diagram of an application scenario of an asynchronous uplink method according to an embodiment of the present invention.
  • the embodiments of the present invention provide a method, a terminal, and a base station for asynchronous uplink, which are used to reduce the delay of uplink data transmission and the signaling overhead when the terminal and the base station are in an out-of-synchronization state.
  • an embodiment of a terminal in an embodiment of the present invention includes:
  • the first acquiring unit 701 is configured to acquire the same asynchronous transmission parameter information as the base station, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes physical resources. Length information of the frame;
  • the base station After determining the asynchronous transmission parameters according to the requirements, the base station first sends the asynchronous transmission parameter information to the terminal, and the terminal can obtain the same asynchronous transmission parameter information as the base station by other means, such as the protocol configuration mode, in order to implement signaling interaction.
  • the asynchronous transmission parameters need to include physical resource information and modulation and coding mode information. In order to enable asynchronous transmission, the asynchronous transmission parameters also need to include the length information of the physical resource frame.
  • a first determining unit 702 configured to determine, according to the physical resource frame format information, a length of an asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail;
  • the terminal configures an asynchronous transmission frame according to the physical resource frame length information, and the length of the asynchronous transmission frame is a required length for the terminal to perform asynchronous transmission with the base station.
  • the first sending unit 703 is configured to send the first uplink information to the base station by using the asynchronous transmission frame according to the asynchronous transmission parameter information;
  • the base station receives the asynchronous transmission frame and obtains the first uplink information, because the terminal sends the first uplink information to the base station by using the asynchronous transmission frame of the required length according to the necessary asynchronous transmission parameter information. It should be noted that when the terminal sends the first uplink information to the base station by using the asynchronous transmission frame, the timing advance used is 0. That is, the terminal determines the timing of receiving the downlink signal, and transmits the first uplink information to the base station using the asynchronous transmission frame based on the determined timing of receiving the downlink signal.
  • the same asynchronous transmission parameter information is obtained, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes a physical resource frame.
  • the length information is used to determine the length of the asynchronous transmission frame according to the physical resource frame format information, and send the first uplink information to the base station by using the asynchronous transmission frame according to the asynchronous transmission parameter information.
  • the length of the asynchronous transmission frame determined by the terminal according to the asynchronous transmission frame format information in the asynchronous transmission parameter information is the same as the length of the asynchronous transmission frame determined by the base station, so even if it is lost
  • the base station can also receive the first uplink information, thereby implementing data uplink, without first establishing an RRC connection through signaling. In order to carry out the data uplink. In this way, the delay of uplink data transmission and the overhead of signaling when the out-of-synchronization state is reduced.
  • the terminal receives the asynchronous transmission parameter information sent by the base station, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame length information, and the terminal configures an asynchronous transmission frame, and according to the asynchronous The transmission parameter information uses the asynchronous transmission frame to send the first uplink information to the base station.
  • the first uplink information may determine a specific content according to a connection state between the terminal and the base station, and asynchronously transmit parameter information.
  • the method includes: using the physical resource to transmit data, the physical resource length information may be a specific part of the physical frame, the asynchronous transmission parameter may further include period information, and the terminal may further receive downlink information sent by the base station, and The second uplink information is sent to the base station, and is specifically described below.
  • the terminal in the embodiment of the present invention includes:
  • the first acquiring unit 801 is configured to acquire the same asynchronous transmission parameter information as the base station, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes physical resources. Length information of the frame; the asynchronous transmission parameter information further includes condition information and period information for transmitting data by using the physical resource; The degree information includes length information of at least one of a frame header, a data transmission part, and a frame tail, and/or total length information of the physical resource frame;
  • the base station After determining the asynchronous transmission parameters according to the requirements, the base station first sends the asynchronous transmission parameter information to the terminal, and the terminal can obtain the same asynchronous transmission parameter information as the base station by other means, such as the protocol configuration mode, in order to implement signaling interaction.
  • the asynchronous transmission parameter needs to include the physical resource information and the modulation and coding mode information, wherein the physical resource is a time-frequency domain resource, and in the LTE (Long Time Evolution) system, the physical resource block (PRB) can be a physical resource.
  • Block) position modulation coding mode may be QPSK (Quadrature Phase Shift Keying) or 1/2 coding; in order to realize asynchronous transmission, the asynchronous transmission parameter also needs to include the length information of the physical resource frame. .
  • the asynchronous transmission parameter information may further include condition information for transmitting data by using the physical resource, that is, which radio bearer data can be used for data transmission on the physical resource;
  • the channel resource, the asynchronous transmission parameter information further includes period information, which is used to indicate a period in which the base station sends the physical resource, that is, how long the physical resource may appear once, or how many physical resources may appear.
  • the length information of any part of the physical resource frame and/or the total length information of the physical resource frame may be set according to actual requirements, such that the length of the asynchronous transmission frame configured according to the physical resource frame is a frame allowed by the base station. length.
  • the asynchronous transmission parameter information may further include an identifier associated with the physical resource, which is not limited herein.
  • the specific method for the base station to send the asynchronous data transmission parameter may be a semi-static configuration through an RRC message, such as a broadcast message or a dedicated RRC message, or dynamically configured through a MAC layer or a physical layer message, such as MAC CE or PDCCH signaling; or
  • the RRC message is combined with the MAC layer or the physical layer message, wherein some of the parameters are notified by the RRC message, and another part of the message is notified by the MAC layer or the physical layer message; or some parameters are fixed by the protocol, such as the physical resource frame length information, and other parameters are The method is notified to the terminal.
  • the asynchronous transmission parameter may be sent to the terminal by using a message, or multiple messages are sent to the terminal.
  • the asynchronous transmission parameter may be used by one terminal alone or shared by multiple terminals, which is not limited herein.
  • a first determining unit 802 configured to determine, according to the physical resource frame format information, a length of an asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail;
  • the terminal configures an asynchronous transmission frame according to the physical resource frame length information, and the length of the asynchronous transmission frame is the end.
  • the required length of the asynchronous transmission between the terminal and the base station may be configured in advance, where each asynchronous transmission frame format corresponds to one identifier, and the physical resource frame length information in the asynchronous transmission parameter information may also be an identifier, and the terminal determines the specific use by the identifier.
  • the asynchronous transfer frame format determines the length of the asynchronous transfer frame.
  • the first sending unit 803 includes a first sending module 8031, configured to use the data transmission part of the asynchronous transmission frame to send the first uplink information to the base station, where the data information conforming to the condition of the physical resource transmission data is used;
  • the first uplink information includes at least one of a buffer status report, data information, and a terminal identifier; or, when the base station is in a radio resource control RRC idle state, the The uplink information includes at least one of an RRC connection request message, data information, and a terminal identifier; or, when performing radio resource control RRC connection reestablishment with the base station, the first uplink information includes an RRC connection reestablishment request message, data At least one of information, a cache status report, and a terminal identifier;
  • the base station receives the asynchronous transmission frame and obtains the first uplink information, because the terminal sends the first uplink information to the base station by using the asynchronous transmission frame of the required length according to the necessary asynchronous transmission parameter information.
  • the timing advance used is 0. That is, the terminal determines the timing of receiving the downlink signal, and transmits the first uplink information to the base station using the asynchronous transmission frame based on the determined timing of receiving the downlink signal.
  • the data information that meets the conditions for transmitting the physical resource data is transmitted by using the data transmission unit, so that interference of data lines of other terminals at adjacent times can be avoided.
  • the terminal may determine the content of the first uplink information according to the RRC connection state with the base station, and if the RRC connection state is in the RRC connection state, the terminal may directly send a buffer status report, indicating the data size of the uplink required by the terminal, and directly uplink the data information.
  • the terminal identifier where the terminal identifier is, for example, a C-RNTI (CellRadio Network Temporary Identifier), and the identifier is not required to be carried when the asynchronous transmission parameter is used by the terminal alone;
  • the RRC connection request message may be sent, or the data information may be directly sent.
  • the RRC connection reestablishment state is in progress, the RRC connection reestablishment request message may be sent, or the data information and the buffer status report may be directly sent.
  • the first receiving unit 804 is configured to receive downlink information sent by the base station, where the downlink information includes an uplink timing adjustment command and a positive acknowledgement of the first uplink information, and is in a wireless resource with the base station.
  • the downlink information further includes a synchronization uplink grant message and/or identifier information of the terminal; or, when the base station is in a radio resource control RRC idle state, the downlink information further includes an RRC. a connection establishment message; or, when performing radio resource control RRC connection reestablishment with the base station, the downlink information further includes a synchronization uplink grant message and/or an RRC connection reestablishment message;
  • the adjustment value in the uplink timing adjustment command is determined according to the time when the base station receives the first uplink information and the deviation value of the receiving window. For example, when the base station receives the first uplink information, the time is ⁇ T later than the receiving window. For example, if the microsecond is used, the adjustment value carried by the base station in the uplink timing adjustment command is ⁇ T. After receiving the adjustment value, the terminal uses the ⁇ T value in subsequent data transmission. There are no restrictions here.
  • the base station may determine the content of the downlink information according to the connection state with the terminal.
  • the base station may send the synchronization uplink authorization message, and the terminal may send the uplink data, and the terminal identifier may be sent.
  • C-RNTI Cell Radio Network Temporary Identifier
  • connection establishment message is instructed to establish an RRC connection with the base station, and if the RRC connection is re-established, the RRC connection reestablishment message may be sent to indicate that the terminal reestablishes an RRC connection with the base station, and may also send a synchronization uplink grant message to indicate the terminal. Send upstream data.
  • the downlink information is masked by using an A-PUSCH-RNTI (Asynchronous Physical Uplink Shared Channel Radio Network Temporary Identifier), or a C-RNTI (CellRadio Network Temporary Identifier) ) cover up.
  • A-PUSCH-RNTI Asynchronous Physical Uplink Shared Channel Radio Network Temporary Identifier
  • C-RNTI CellRadio Network Temporary Identifier
  • the downlink information may be masked by using the C-RNTI.
  • the downlink information may use the A-PUSCH.
  • -RNTI is masked.
  • the downlink information includes a negative acknowledgement of the first uplink information.
  • the terminal After the downlink information received by the terminal includes a negative acknowledgement of the first uplink information, the terminal initiates a random access procedure, or reuses a new asynchronous transmission frame retransmission.
  • the first uplink information is described. I will not repeat them here.
  • the first application unit 805 is configured to be in a radio resource control RRC connection state with the base station.
  • the timing adjustment timer is started;
  • the second sending unit 806 is configured to send second uplink information to the base station according to the synchronous uplink grant message, where the second uplink information includes data information; or, when the base station is in a radio resource control RRC idle state, And transmitting second uplink information to the base station according to the RRC connection setup message, where the second uplink information includes an RRC connection setup complete message; or, when performing a radio resource control RRC connection reestablishment state with the base station, according to the The RRC connection reestablishment message sends second uplink information to the base station, where the second uplink information includes an RRC connection reestablishment complete message and data information;
  • the terminal sends the second uplink information with different content to the base station according to the connection state with the base station. It should be noted that, when the terminal is not in the RRC connection state with the base station, after the RRC connection establishment is completed, the subsequent information interaction step refers to the terminal that is in the RRC connection state with the base station, and details are not described herein.
  • the asynchronous transmission parameter information includes condition information for transmitting data by using the physical resource, and the accuracy of the uplink information received by the base station is improved; the asynchronous transmission parameter information further includes period information, which saves channel resources; The data information that meets the condition for transmitting the data of the physical resource is used to send the first uplink information to the base station by using the data transmission unit, so as to avoid interference of data lines of other terminals at adjacent times; the terminal may be located according to the base station. Different RRC connection states are used to determine the content of the first uplink information, which improves the efficiency of information interaction.
  • the terminal sends the first uplink information to the base station by using the asynchronous transmission frame according to the asynchronous transmission parameter information.
  • the asynchronous transmission frame may further include a physical random access channel PARCH.
  • the resource part is configured to transmit a preamble, or send a physical random access channel PARCH resource in the same manner as the asynchronous transmission frame is sent, where the PARCH resource is used to transmit a preamble, which is described in detail below.
  • another embodiment of the terminal in the embodiment of the present invention includes:
  • the first acquiring unit 901 is configured to acquire the same asynchronous transmission parameter information as the base station, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes physical resources. Length information of the frame; the asynchronous transmission parameter information further includes condition information and period information for transmitting data by using the physical resource; and the physical resource frame length information includes length information of at least one of a frame header, a data transmission part, and a frame tail. /or The total length information of the physical resource frame;
  • the base station After determining the asynchronous transmission parameters according to the requirements, the base station first sends the asynchronous transmission parameter information to the terminal, and the terminal can obtain the same asynchronous transmission parameter information as the base station by other means, such as the protocol configuration mode, in order to implement signaling interaction.
  • the asynchronous transmission parameter needs to include the physical resource information and the modulation and coding mode information, wherein the physical resource is a time-frequency domain resource, and in the LTE (Long Time Evolution) system, the physical resource block (PRB) can be a physical resource.
  • Block) position modulation coding mode may be QPSK (Quadrature Phase Shift Keying) or 1/2 coding; in order to realize asynchronous transmission, the asynchronous transmission parameter also needs to include the length information of the physical resource frame. .
  • the asynchronous transmission parameter information may further include condition information for transmitting data by using the physical resource, that is, which radio bearer data can be used for data transmission on the physical resource;
  • the channel resource, the asynchronous transmission parameter information further includes period information, which is used to indicate a period in which the base station sends the physical resource, that is, how long the physical resource may appear once, or how many physical resources may appear.
  • the length information of any part of the physical resource frame and/or the total length information of the physical resource frame may be set according to actual requirements, such that the length of the asynchronous transmission frame configured according to the physical resource frame is a frame allowed by the base station. length.
  • the asynchronous transmission parameter information may further include an identifier associated with the physical resource, which is not limited herein.
  • the specific method for the base station to send the asynchronous data transmission parameter may be a semi-static configuration through an RRC message, such as a broadcast message or a dedicated RRC message, or dynamically configured through a MAC layer or a physical layer message, such as MAC CE or PDCCH signaling; or
  • the RRC message is combined with the MAC layer or the physical layer message, wherein some of the parameters are notified by the RRC message, and another part of the message is notified by the MAC layer or the physical layer message; or some parameters are fixed by the protocol, such as the physical resource frame length information, and other parameters are The method is notified to the terminal.
  • the asynchronous transmission parameter may be sent to the terminal by using a message, or multiple messages are sent to the terminal.
  • the asynchronous transmission parameter may be used by one terminal alone or shared by multiple terminals, which is not limited herein.
  • the first determining unit 902 is configured to determine an asynchronous transmission frame according to the physical resource frame format information, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail, and the asynchronous transmission frame further includes a physical random access channel (PRACH) Department of Resources;
  • PRACH physical random access channel
  • the terminal configures an asynchronous transmission frame according to the physical resource frame length information, and the length of the asynchronous transmission frame is the end.
  • the required length of the asynchronous transmission between the terminal and the base station may be configured in advance, where each asynchronous transmission frame format corresponds to one identifier, and the physical resource frame length information in the asynchronous transmission parameter information may also be an identifier, and the terminal determines the specific use by the identifier.
  • the asynchronous transfer frame format determines the length of the asynchronous transfer frame.
  • a second obtaining unit 903 configured to acquire a preamble
  • the preamble may be obtained by the terminal from the reserved preamble space, or may be allocated by the base station to the terminal, which is not limited herein.
  • the first sending unit 904 further includes a first sending module 9041, configured to use the data transmission part of the asynchronous transmission frame to send the first uplink information to the base station by using the data transmission condition of the condition that the physical resource transmission data meets;
  • the first uplink information includes at least one of a buffer status report, data information, and a terminal identifier; or, when the base station is in a radio resource control RRC idle state,
  • the first uplink information includes at least one of an RRC connection request message, data information, and a terminal identifier; or, when performing radio resource control RRC connection reestablishment with the base station, the first uplink information includes an RRC connection reestablishment request.
  • the first sending unit 904 further includes a second sending module 9042, configured to send the preamble to the base station by using the PRACH resource unit;
  • the base station receives the asynchronous transmission frame and obtains the first uplink information, because the terminal sends the first uplink information to the base station by using the asynchronous transmission frame of the required length according to the necessary asynchronous transmission parameter information.
  • the timing advance used is 0. That is, the terminal determines the timing of receiving the downlink signal, and transmits the first uplink information to the base station using the asynchronous transmission frame based on the determined timing of receiving the downlink signal.
  • the data information that meets the conditions for transmitting the physical resource data is transmitted by using the data transmission unit, so that interference of data lines of other terminals at adjacent times can be avoided.
  • the terminal may determine the content of the first uplink information according to the RRC connection state with the base station, and if the RRC connection state is in the RRC connection state, the terminal may directly send a buffer status report, indicating the data size of the uplink required by the terminal, and directly uplink the data information.
  • the terminal identifier is, for example, a C-RNTI (Cell Radio Network Temporary Identifier), and the identifier is not required to be carried when the asynchronous transmission parameter is used by the terminal separately; If the RRC connection is in the RRC idle state, the RRC connection request message may be sent, or the data information may be directly sent.
  • the RRC connection reestablishment request message may be sent, or the data information and the buffer status report may be directly sent.
  • the terminal sends a preamble to the base station.
  • the terminal may also establish a connection by using a contention based random access or a non-contention based random access method.
  • the first receiving unit 905 further includes a first receiving module 9051, configured to receive downlink information sent by the base station, where the downlink information includes a negative acknowledgement of the first uplink information;
  • the base station When the base station does not receive the first uplink information sent by the terminal, or the content of the first uplink information is not successfully parsed, the base station sends downlink information to the terminal, where the downlink information includes a negative acknowledgement of the first uplink information.
  • the first receiving module 9051 is an optional module, because when the base station does not receive the first uplink information sent by the terminal, the random access response message may be directly sent to the terminal.
  • the second receiving unit 906 is configured to receive a random access response message sent by the base station, where the random access response message includes a synchronous uplink grant message and uplink timing advance information.
  • the base station may further send a random access response message to the terminal, where the random access message includes the synchronous uplink.
  • the authorization message is used to indicate that the terminal can send the buffer status report or the uplink data.
  • the uplink timing advance information included in the random access message is used to indicate the time when the terminal sends the uplink information.
  • the base station when the terminal receives the downlink information including the positive acknowledgment, the base station successfully receives the first uplink information that includes the positive acknowledgment in the foregoing embodiment, and therefore, the base station usually does not Sending a random access response message, the terminal does not receive the random access response message and applies a random access response message for uplink transmission; when the terminal receives the downlink information including the negative acknowledgement of the first uplink information, The base station does not successfully receive the first uplink information. Therefore, if the base station successfully receives the preamble, the base station usually sends a random access response message, and the terminal performs subsequent operations according to the random access response message.
  • a second application unit 907 configured to apply the random access response message
  • the third sending unit 908 is configured to send second uplink information to the base station, where the second uplink information includes data information.
  • the terminal After the terminal receives the random access response message, the terminal can establish a connection based on the contention-based random access or the non-contention-based random access method, and then perform the synchronous uplink, which is not limited herein.
  • the content in the second uplink information may be the same as or different from the content in the first uplink information. That is, the terminal may use the second uplink information to retransmit the first uplink information that is not successfully transmitted by using the asynchronous transmission frame, which is not limited herein.
  • the asynchronous transmission frame further includes a physical random access channel (PRACH) resource part, configured to transmit a preamble, and if the base station receives the asynchronous transmission frame, if the data transmission part of the asynchronous transmission frame cannot be parsed
  • PRACH physical random access channel
  • the preamble in the PRACH resource may also be obtained, and then a random access response message is sent to the terminal to establish an RRC connection, so that the terminal can perform synchronous uplink, which improves the stability of information interaction.
  • an embodiment of a base station in an embodiment of the present invention includes:
  • the second determining unit 1001 is configured to determine asynchronous transmission parameter information, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of a physical resource frame. ;
  • the base station After determining the asynchronous transmission parameters according to the requirements, the base station first sends the asynchronous transmission parameter information to the terminal, and the terminal can obtain the same asynchronous transmission parameter information as the base station by other means, such as the protocol configuration mode, in order to implement signaling interaction.
  • the asynchronous transmission parameters need to include physical resource information and modulation and coding mode information. In order to enable asynchronous transmission, the asynchronous transmission parameters also need to include the length information of the physical resource frame.
  • the fourth receiving unit 1002 is configured to receive, by the terminal, first uplink information that is sent by using an asynchronous transmission frame according to the asynchronous transmission parameter, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail;
  • the terminal configures an asynchronous transmission frame according to the physical resource frame length information, and the length of the asynchronous transmission frame is the required length for the terminal to perform asynchronous transmission with the base station.
  • the base station receives the asynchronous transmission frame and obtains the first uplink information, because the terminal sends the first uplink information to the base station by using the asynchronous transmission frame of the required length according to the necessary asynchronous transmission parameter information. It should be noted that when the terminal sends the first uplink information to the base station by using the asynchronous transmission frame, the timing advance used is 0. That is, the terminal determines the timing of receiving the downlink signal, and transmits the first uplink information to the base station using the asynchronous transmission frame based on the determined timing of receiving the downlink signal.
  • the asynchronous transmission frame sent by the terminal to the base station is allowed to be received by the base station.
  • the transmission of uplink data reduces the delay of uplink data transmission and the overhead of signaling when the out-of-synchronization state is reduced.
  • the base station determines the asynchronous transmission parameter information, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame length information, and the base station receiving terminal sends the asynchronous transmission frame according to the asynchronous transmission parameter.
  • the first uplink information, the asynchronous transmission frame includes a frame header, a data transmission portion, and a frame tail portion.
  • the first uplink information may be determined according to a connection state of the terminal and the base station, and the asynchronous transmission parameter information further includes condition information that uses the physical resource to transmit data, where the physical resource length information may be For a specific part of the physical frame, the asynchronous transmission parameter may further include period information, and the base station may further send downlink information to the terminal and receive second uplink information sent by the terminal, which is specifically described below.
  • the base station in the embodiment of the present invention includes:
  • the second determining unit 1101 is configured to determine asynchronous transmission parameter information, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of a physical resource frame.
  • the asynchronous transmission parameter information further includes condition information and period information for transmitting data using the physical resource;
  • the physical resource frame length information includes length information of at least one of a frame header, a data transmission portion, and a frame tail, and/or the Total length information of physical resource frames;
  • the base station After determining the asynchronous transmission parameters according to the requirements, the base station first sends the asynchronous transmission parameter information to the terminal, and the terminal can obtain the same asynchronous transmission parameter information as the base station by other means, such as the protocol configuration mode, in order to implement signaling interaction.
  • the asynchronous transmission parameter needs to include the physical resource information and the modulation and coding mode information, wherein the physical resource is a time-frequency domain resource, and in the LTE (Long Time Evolution) system, the physical resource block (PRB) can be a physical resource.
  • Block) position modulation coding mode may be QPSK (Quadrature Phase Shift Keying) or 1/2 coding; in order to realize asynchronous transmission, the asynchronous transmission parameter also needs to include the length information of the physical resource frame. .
  • the asynchronous transmission parameter information may further include condition information for transmitting data by using the physical resource, that is, which radio bearer data can be used for data transmission on the physical resource; Channel resource
  • the asynchronous transmission parameter information further includes period information, which is used to indicate a period in which the base station sends the physical resource, that is, how long the physical resource may appear once, or how many times the physical resource may appear; Actually, the length information of any part of the physical resource frame and/or the total length information of the physical resource frame are set such that the length of the asynchronous transmission frame configured according to the physical resource frame is the length of the frame allowed by the base station.
  • the asynchronous transmission parameter information may further include an identifier associated with the physical resource, which is not limited herein.
  • the specific method for the base station to send the asynchronous data transmission parameter may be a semi-static configuration through an RRC message, such as a broadcast message or a dedicated RRC message, or dynamically configured through a MAC layer or a physical layer message, such as MAC CE or PDCCH signaling; or
  • the RRC message is combined with the MAC layer or the physical layer message, wherein some of the parameters are notified by the RRC message, and another part of the message is notified by the MAC layer or the physical layer message; or some parameters are fixed by the protocol, such as the physical resource frame length information, and other parameters are The method is notified to the terminal.
  • the asynchronous transmission parameter may be sent to the terminal by using a message, or multiple messages are sent to the terminal.
  • the asynchronous transmission parameter may be used by one terminal alone or shared by multiple terminals, which is not limited herein.
  • the fourth receiving unit 1102 includes a fourth receiving module 11021, configured to receive data information that meets the condition of the physical resource transmission data, and use the first uplink information sent by the data transmission unit in the asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission unit, and a frame tail; when the eNB is in a radio resource control RRC connection state with the base station, the first uplink information includes at least one of a buffer status report, data information, and a terminal identifier; or, when When the base station is in the radio resource control RRC idle state, the first uplink information includes at least one of an RRC connection request message, data information, and a terminal identifier; or, when performing radio resource control RRC connection reestablishment with the base station; The first uplink information includes at least one of an RRC connection reestablishment request message, data information, a buffer status report, and a terminal identifier.
  • the terminal configures an asynchronous transmission frame according to the physical resource frame length information, and the length of the asynchronous transmission frame is the required length for the terminal to perform asynchronous transmission with the base station.
  • a plurality of asynchronous transmission frame formats may be configured in advance, where each asynchronous transmission frame format corresponds to one identifier, and the physical resource frame length information in the asynchronous transmission parameter information may also be an identifier, and the terminal determines the specific use by the identifier.
  • the asynchronous transfer frame format determines the length of the asynchronous transfer frame.
  • the terminal Since the terminal uses the asynchronous transmission frame length of the required length according to the necessary asynchronous transmission parameter information The station sends the first uplink information, and the base station receives the asynchronous transmission frame, and can obtain the first uplink information. It should be noted that when the terminal sends the first uplink information to the base station by using the asynchronous transmission frame, the timing advance used is 0. That is, the terminal determines the timing of receiving the downlink signal, and transmits the first uplink information to the base station using the asynchronous transmission frame based on the determined timing of receiving the downlink signal.
  • the data information that meets the conditions for transmitting the physical resource data is transmitted by using the data transmission unit, so that interference of data lines of other terminals at adjacent times can be avoided.
  • the terminal may determine the content of the first uplink information according to the RRC connection state with the base station, and if the RRC connection state is in the RRC connection state, the terminal may directly send a buffer status report, indicating the data size of the uplink required by the terminal, and directly uplink the data information.
  • the terminal identifier where the terminal identifier is, for example, a C-RNTI (CellRadio Network Temporary Identifier), and the identifier is not required to be carried when the asynchronous transmission parameter is used by the terminal alone;
  • the RRC connection request message may be sent, or the data information may be directly sent.
  • the RRC connection reestablishment state is in progress, the RRC connection reestablishment request message may be sent, or the data information and the buffer status report may be directly sent.
  • the fifth sending unit 1103 is configured to send downlink information to the terminal, where the downlink information includes an uplink timing adjustment command and a positive acknowledgement of the first uplink information, and when the terminal is in a radio resource control RRC connection state, the The downlink information further includes a synchronization uplink grant message and/or identifier information of the terminal; or, when the terminal is in a radio resource control RRC idle state, the downlink information further includes an RRC connection setup message; or When the terminal performs radio resource control RRC connection reestablishment, the downlink information further includes a synchronization uplink grant message and/or an RRC connection reestablishment message;
  • the adjustment value in the uplink timing adjustment command is determined according to the time when the base station receives the first uplink information and the deviation value of the receiving window. For example, when the base station receives the first uplink information, the time is ⁇ T later than the receiving window. For example, if the microsecond is used, the adjustment value carried by the base station in the uplink timing adjustment command is ⁇ T. After receiving the adjustment value, the terminal uses the ⁇ T value in subsequent data transmission. There are no restrictions here.
  • the base station may determine the content of the downlink information according to the connection state with the terminal.
  • the base station may send the synchronization uplink authorization message, and the terminal may send the uplink data, and the terminal identifier may be sent.
  • C-RNTI CellRadioNetworkTemporaryIdentifier
  • the RRC connection reestablishment message may be sent, indicating that the terminal reestablishes an RRC connection with the base station, and may also send a synchronization uplink grant message, instructing the terminal to send uplink data.
  • the downlink information is masked by using an A-PUSCH-RNTI (Asynchronous Physical Uplink Shared Channel Radio Network Temporary Identifier), or a C-RNTI (CellRadio Network Temporary Identifier) ) cover up.
  • A-PUSCH-RNTI Asynchronous Physical Uplink Shared Channel Radio Network Temporary Identifier
  • C-RNTI CellRadio Network Temporary Identifier
  • the downlink information may be masked by using the C-RNTI.
  • the downlink information may use the A-PUSCH.
  • -RNTI is masked.
  • the downlink information includes a negative acknowledgement of the first uplink information.
  • the terminal After the downlink information received by the terminal includes a negative acknowledgement of the first uplink information, the terminal initiates a random access procedure, or reuses a new asynchronous transmission frame retransmission.
  • the first uplink information is described. I will not repeat them here.
  • the fifth receiving unit 1104 is configured to: when the terminal and the base station are in a radio resource control RRC connection state, receive the terminal to send second uplink information according to the synchronous uplink grant message, where the second uplink information includes data information; Or, when the terminal and the base station are in the radio resource control RRC idle state, the receiving the terminal sends the second uplink information according to the RRC connection setup message, where the second uplink information includes an RRC connection setup complete message; or When the terminal and the base station perform radio resource control RRC connection reestablishment, the receiving terminal sends a second uplink information according to the RRC connection reestablishment message, where the second uplink information includes an RRC connection reestablishment complete message and/or data information. ;
  • the terminal sends the second uplink information with different content to the base station according to the connection state with the base station. It should be noted that, when the terminal is not in the RRC connection state with the base station, after the RRC connection establishment is completed, the subsequent information interaction step refers to the terminal that is in the RRC connection state with the base station, and details are not described herein.
  • the asynchronous transmission parameter information includes condition information for transmitting data by using the physical resource, and the accuracy of the uplink information received by the base station is improved; and the asynchronous transmission parameter information is further Including the period information, the channel resources are saved; the data information that meets the conditions for transmitting the data of the physical resource is used to send the first uplink information to the base station by using the data transmission unit, so that the data lines of other terminals at adjacent times can be avoided.
  • the interference can be determined by the terminal according to the RRC connection state with the base station, and the content of the first uplink information is determined, thereby improving the efficiency of information interaction.
  • the first uplink information that is sent by the base station receiving terminal by using the asynchronous transmission frame according to the asynchronous transmission parameter information is described.
  • the asynchronous transmission frame may further include a physical random access channel PARCH resource.
  • PARCH resource is used for transmitting a preamble, which is described in detail below.
  • the second determining unit 1201 is configured to determine asynchronous transmission parameter information, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of a physical resource frame.
  • the asynchronous transmission parameter information further includes condition information and period information for transmitting data by using the physical resource in the asynchronous transmission frame;
  • the physical resource frame length information includes a length of at least one of a frame header, a data transmission portion, and a frame tail portion. Information and/or total length information of the physical resource frame;
  • the base station After determining the asynchronous transmission parameters according to the requirements, the base station first sends the asynchronous transmission parameter information to the terminal, and the terminal can obtain the same asynchronous transmission parameter information as the base station by other means, such as the protocol configuration mode, in order to implement signaling interaction.
  • the asynchronous transmission parameter needs to include the physical resource information and the modulation and coding mode information, wherein the physical resource is a time-frequency domain resource, and in the LTE (Long Time Evolution) system, the physical resource block (PRB) can be a physical resource.
  • Block) position modulation coding mode may be QPSK (Quadrature Phase Shift Keying) or 1/2 coding; in order to realize asynchronous transmission, the asynchronous transmission parameter also needs to include the length information of the physical resource frame. .
  • the asynchronous transmission parameter information may further include condition information for transmitting data by using the physical resource, that is, which radio bearer data can be used for data transmission on the physical resource;
  • the channel resource the asynchronous transmission parameter information further includes period information, which is used to indicate a period in which the base station sends the physical resource, that is, how long the physical resource may appear once, or how many physical resources may appear. Times; you can set the length information and/or length of any part of the physical resource frame according to actual needs.
  • the total length information of the physical resource frame is such that the length of the asynchronous transmission frame configured according to the physical resource frame is the length of the frame allowed to be received by the base station.
  • the asynchronous transmission parameter information may further include an identifier associated with the physical resource, which is not limited herein.
  • the specific method for the base station to send the asynchronous data transmission parameter may be a semi-static configuration through an RRC message, such as a broadcast message or a dedicated RRC message, or dynamically configured through a MAC layer or a physical layer message, such as MAC CE or PDCCH signaling; or
  • the RRC message is combined with the MAC layer or the physical layer message, wherein some of the parameters are notified by the RRC message, and another part of the message is notified by the MAC layer or the physical layer message; or some parameters are fixed by the protocol, such as the physical resource frame length information, and other parameters are The method is notified to the terminal.
  • the asynchronous transmission parameter may be sent to the terminal by using a message, or multiple messages are sent to the terminal.
  • the asynchronous transmission parameter may be used by one terminal alone or shared by multiple terminals, which is not limited herein.
  • the notifying unit 1202 is configured to notify the terminal by using the asynchronous transmission parameter information by using at least one of a radio resource control RRC layer message, a sending medium access control layer message, a sending physical layer message, and a protocol pre-configuration.
  • the fourth receiving unit 1203 further includes a fifth receiving module 12031, configured to receive, by the terminal, a preamble transmitted by the PRACH resource part in the asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission part, a frame tail, and random access.
  • a fifth receiving module 12031 configured to receive, by the terminal, a preamble transmitted by the PRACH resource part in the asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission part, a frame tail, and random access.
  • Channel PRACH resource unit configured to receive, by the terminal, a preamble transmitted by the PRACH resource part in the asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission part, a frame tail, and random access.
  • the terminal configures an asynchronous transmission frame according to the physical resource frame length information, and the length of the asynchronous transmission frame is a required length for the terminal to perform asynchronous transmission with the base station.
  • a plurality of asynchronous transmission frame formats may be configured in advance, where each asynchronous transmission frame format corresponds to one identifier, and the physical resource frame length information in the asynchronous transmission parameter information may also be an identifier, and the terminal determines the specific use by the identifier.
  • the asynchronous transfer frame format determines the length of the asynchronous transfer frame.
  • the preamble may be obtained by the terminal from the reserved preamble space, or may be allocated by the base station to the terminal, which is not limited herein.
  • the fifth sending unit 1204 further includes a fifth sending module 12041, configured to send downlink information to the terminal, where the downlink information includes a negative acknowledgement of the first uplink information.
  • the base station When the base station does not receive the first uplink information sent by the terminal, or the content of the first uplink information is not successfully parsed, the base station sends downlink information to the terminal, where the downlink information includes a negative acknowledgement of the first uplink information.
  • the fifth sending unit 1204 is an optional unit, because when the base station does not receive the first uplink information sent by the terminal, the random access ring can also be directly sent. The message should be given to the terminal.
  • the sixth sending unit 1205 is configured to send a random access response message to the terminal, where the random access response message includes synchronous uplink grant information and uplink timing advance information.
  • the base station may further send a random access response message to the terminal, where the random access message includes the synchronous uplink.
  • the authorization message is used to indicate that the terminal can send the buffer status report or the uplink data.
  • the uplink timing advance information included in the random access message is used to indicate the time when the terminal sends the uplink information.
  • the base station when the terminal receives the downlink information including the positive acknowledgment, the base station successfully receives the first uplink information that includes the positive acknowledgment in the foregoing embodiment, and therefore, the base station usually does not Sending a random access response message, the terminal does not receive the random access response message and applies a random access response message for uplink transmission; when the terminal receives the downlink information including the negative acknowledgement of the first uplink information, The base station does not successfully receive the first uplink information. Therefore, if the base station successfully receives the preamble, the base station usually sends a random access response message, and the terminal performs subsequent operations according to the random access response message.
  • the sixth receiving unit 1206 is configured to receive second uplink information sent by the terminal, where the second uplink information includes data information.
  • the terminal After the terminal receives the random access response message, the terminal can establish a connection based on the contention-based random access or the non-contention-based random access method, and then perform the synchronous uplink, which is not limited herein.
  • the content in the second uplink information may be the same as or different from the content in the first uplink information. That is, the terminal may use the second uplink information to retransmit the first uplink information that is not successfully transmitted by using the asynchronous transmission frame, which is not limited herein.
  • the asynchronous transmission frame further includes a physical random access channel (PRACH) resource part, configured to transmit a preamble, and if the base station receives the asynchronous transmission frame, if the data transmission part of the asynchronous transmission frame cannot be parsed
  • PRACH physical random access channel
  • the preamble in the PRACH resource may also be obtained, and then a random access response message is sent to the terminal to establish an RRC connection, so that the terminal can perform synchronous uplink, which improves the stability of information interaction.
  • the random access channel PRACH resource is located in the asynchronous transmission frame, where the preamble is the same as the asynchronous transmission frame frequency band, but the time domain is different;
  • the PRACH resource may also be sent as a single frame, and only needs to be the same as the time domain of the asynchronous transmission frame, so that the preamble is the same as the asynchronous transmission frame time domain, but the frequency band is
  • the embodiment is similar to the above embodiment, and details are not described herein.
  • FIG. 1 to FIG. 3 illustrates the specific structure of the access point device from the perspective of the functional unit.
  • the specific structure of the access point device is described from the hardware point of view below with reference to the embodiment shown in FIG. 7:
  • the terminal includes a transmitter 1301, a receiver 1302, a processor 1303, and a memory 1304.
  • the access point device may have more or less components than those shown in FIG. 13, may combine two or more components, or may have different component configurations or settings, and each component may Hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.
  • the receiver 1302 is configured to acquire the same asynchronous transmission parameter information as the base station, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes physical resources. Length information of the frame;
  • the processor 1303 is configured to determine, according to the physical resource frame format information, a length of an asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail;
  • the transmitter 1301 is configured to send, by using the asynchronous transmission frame, first uplink information to the base station according to the asynchronous transmission parameter information.
  • the receiver 1302 is configured to acquire the same asynchronous transmission parameter information as the base station, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical The resource frame format information includes length information of the physical resource frame; the asynchronous transmission parameter information further includes condition information and period information for transmitting data by using the physical resource in the asynchronous transmission frame; and the physical resource frame length information includes a frame header, Length information of at least one of the data transmission part and the frame tail and/or total length information of the physical resource frame;
  • the processor 1303 is configured to determine, according to the physical resource frame format information, a length of an asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail;
  • the transmitter 1301 is configured to use the data transmission unit to send first uplink information to the base station according to the data information that meets the condition for transmitting the physical resource data, and to be in the wireless resource with the base station.
  • the first uplink information includes at least one of a buffer status report, data information, and a terminal identifier; or, when the base station is in a radio resource control RRC idle state, the first uplink The information includes at least one of an RRC connection request message, data information, and a terminal identifier; or, when performing radio resource control RRC connection reestablishment with the base station, the first uplink information includes an RRC connection reestablishment request message, data information, At least one of a cache status report and a terminal identifier;
  • the receiver 1301 is further configured to: after the first uplink information is sent by the transmitter 1301, receive downlink information sent by the base station, where the downlink information includes an uplink timing adjustment command and a positive confirmation of the first uplink information. And the downlink information further includes a synchronization uplink grant message and/or identifier information of the terminal when the base station is in a radio resource control RRC connection state; or, when the base station is in a radio resource control RRC idle state, The downlink information further includes an RRC connection setup message; or, when performing radio resource control RRC connection reestablishment with the base station, the downlink information further includes a synchronization uplink grant message and/or an RRC connection reestablishment message;
  • the processor 1303 is further configured to: after the receiver 1301 receives the downlink information, when a radio resource control RRC connection state is performed with the base station, apply a timing adjustment command to start a timing adjustment timer;
  • the transmitter 1301 is further configured to: after the receiver 1301 receives the downlink information, send second uplink information to the base station according to the synchronous uplink grant message, where the second uplink information includes data information; Or, when the eNB is in the radio resource control RRC idle state, sending the second uplink information to the base station according to the RRC connection setup message, where the second uplink information includes an RRC connection setup complete message; or, when When the eNB performs the RRC connection reestablishment state, the eNB sends the second uplink information to the eNB according to the RRC connection reestablishment message, where the second uplink information includes an RRC connection reestablishment complete message and data information.
  • the receiver 1302 is configured to acquire the same asynchronous transmission parameter information as the base station, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource is used.
  • the frame format information includes length information of the physical resource frame; the asynchronous transmission parameter information further includes condition information and period information for transmitting data by using the physical resource; and the physical resource frame length information includes a frame header, a data transmission part, and a frame. Length information of at least one of the tails and/or total length information of the physical resource frame;
  • the processor 1303 is configured to determine an asynchronous transmission frame according to the physical resource frame format information, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail, and the asynchronous transmission frame further includes a physical random access channel (PRACH) Department of Resources;
  • PRACH physical random access channel
  • the receiver 1302 is further configured to acquire a preamble
  • the transmitter 1301 is configured to send, by using the data transmission part of the asynchronous transmission frame, the first uplink information to the base station, where the data information conforming to the condition of the physical resource transmission data is used;
  • the first uplink information includes at least one of a buffer status report, data information, and a terminal identifier; or, when the base station is in a radio resource control RRC idle state, the first uplink information includes At least one of an RRC connection request message, data information, and a terminal identifier; or, when performing radio resource control RRC connection reestablishment with the base station, the first uplink information includes an RRC connection reestablishment request message, data information, and a buffer status At least one of the report and the terminal identification;
  • the transmitter 1301 is further configured to send the preamble to the base station by using the PRACH resource unit;
  • the receiver 1302 is further configured to: after the transmitter 1301 sends the first uplink information and the preamble, receive downlink information sent by the base station, where the downlink information includes a negative acknowledgement of the first uplink information. ;
  • the receiver 1302 is further configured to receive a random access response message sent by the base station, where the random access response message includes a synchronization uplink grant message and uplink timing advance information.
  • the processor 1303 is further configured to: after the receiver 1302 receives the random access response message, apply the random access response message;
  • the transmitter 1301 is further configured to send second uplink information to the base station, where the second uplink information includes data information.
  • the asynchronous transmission frame sent by the transmitter 1301 to the base station is the length of the frame that the base station can allow, and the base station can receive the asynchronous transmission frame, and the base station parses the content of the asynchronous transmission frame to obtain the
  • the first uplink information is such that, even if the terminal and the base station are in an out-of-synchronization state, the terminal can perform uplink data transmission in time, which reduces the delay of uplink data transmission and the signaling overhead when the out-of-synchronization state is lost.
  • FIG. 4 to FIG. 6 describes the specific structure of the base station from the perspective of the functional module.
  • the specific structure of the site is explained from the hardware point of view below with reference to the embodiment shown in FIG. 8:
  • the site device includes a receiver 1401, a transmitter 1402, a processor 1403, and a memory 1404.
  • the site device may have more or less components than those shown in FIG. 14, may combine two or more components, or may have different component configurations or settings, and each component may include Hardware, software, or a combination of hardware and software implementations of one or more signal processing and/or application specific integrated circuits.
  • the processor 1403 is configured to determine asynchronous transmission parameter information, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of a physical resource frame. ;
  • the receiver 1401 is configured to receive, by the terminal, first uplink information that is sent by using an asynchronous transmission frame according to the asynchronous transmission parameter, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail;
  • the processor 1403 is configured to determine asynchronous transmission parameter information, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes Length information of the physical resource frame; the asynchronous transmission parameter information further includes condition information and period information for transmitting data by using the physical resource; and the physical resource frame length information includes at least one of a frame header, a data transmission part, and a frame tail Length information and/or total length information of the physical resource frame;
  • the receiver 1401 is configured to receive, by using data information that meets the condition of the physical resource transmission data, first uplink information that is sent by using a data transmission unit in the asynchronous transmission frame, where the asynchronous transmission frame includes a frame header and a data transmission.
  • the first uplink information includes at least one of a buffer status report, data information, and a terminal identifier when the base station is in a radio resource control RRC connection state; or, when the base station is in the wireless state
  • the first uplink information includes at least one of an RRC connection request message, data information, and a terminal identifier; or, when performing radio resource control RRC connection reestablishment with the base station, the first The uplink information includes at least one of an RRC connection reestablishment request message, a data information, a cache status report, and a terminal identifier.
  • the transmitter 1402 is configured to send downlink information to the terminal, where the downlink information includes an uplink timing adjustment command and a positive acknowledgement of the first uplink information, and is in a wireless resource control with the terminal.
  • the downlink information further includes a synchronization uplink grant message and/or identifier information of the terminal; or, when the terminal is in a radio resource control RRC idle state, the downlink information further includes an RRC connection.
  • the receiver 1401, after the transmitter 1402 sends the downlink information is further configured to: when the terminal and the base station are in a radio resource control RRC connection state, receive the terminal to send according to the synchronous uplink grant message. And the second uplink information includes the data information; or, when the terminal and the base station are in the radio resource control RRC idle state, the receiving terminal sends the second uplink information according to the RRC connection setup message, where The second uplink information includes an RRC connection setup complete message; or, when the terminal and the base station perform radio resource control RRC connection reestablishment, the receiving terminal sends a second uplink information according to the RRC connection reestablishment message, where The second uplink information includes an RRC connection reestablishment complete message and/or data information;
  • the processor 1403 is configured to determine asynchronous transmission parameter information, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes physical Length information of the resource frame; the asynchronous transmission parameter information further includes condition information and period information for transmitting data by using the physical resource in the asynchronous transmission frame; the physical resource frame length information includes a frame header, a data transmission part, and a frame tail Length information of at least one of the data and/or total length information of the physical resource frame;
  • the transmitter 1402 is configured to notify the terminal by using the asynchronous transmission parameter information by using at least one of a radio resource control RRC layer message, a sending media access control layer message, a sending physical layer message, and a protocol pre-configuration. ;
  • the receiver 1401 is further configured to receive, by the terminal, a preamble sent by a PRACH resource unit in an asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail part, and a random access channel PRACH resource part;
  • the transmitter 1402 is further configured to send downlink information to the terminal after the receiver interface 1401 receives the preamble, where the downlink information includes a negative acknowledgement of the first uplink information.
  • the transmitter 1402 is further configured to send a random access response message to the terminal after the receiver interface 1401 receives the preamble, where the random access response message includes synchronous uplink grant information and uplink timing. Advance amount information;
  • the receiver 1401 is further configured to receive second uplink information sent by the terminal after the transmitter 1402 sends a random access response message to the terminal, where the second uplink information includes data information.
  • the asynchronous transmission frame sent by the terminal to the base station is the length of the frame that the base station can allow, and the base station can receive the asynchronous transmission frame, and the base station parses the content of the asynchronous transmission frame to obtain the An uplink information, so that even if the terminal and the base station are in an out-of-synchronization state, the terminal can perform uplink data transmission in time, which reduces the delay of uplink data transmission and the signaling overhead when the out-of-synchronization state is lost.
  • an embodiment of the method for asynchronous uplink in the embodiment of the present invention includes:
  • the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of the physical resource frame.
  • the base station After determining the asynchronous transmission parameters according to the requirements, the base station first sends the asynchronous transmission parameter information to the terminal, and the terminal can obtain the same asynchronous transmission parameter information as the base station by other means, such as the protocol configuration mode, in order to implement signaling interaction.
  • the asynchronous transmission parameters need to include physical resource information and modulation and coding mode information. In order to enable asynchronous transmission, the asynchronous transmission parameters also need to include the length information of the physical resource frame.
  • Step 102 Determine, according to the physical resource frame length information, a length of an asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail.
  • the terminal configures an asynchronous transmission frame according to the physical resource frame length information, and the length of the asynchronous transmission frame is a required length for the terminal to perform asynchronous transmission with the base station.
  • the base station receives the asynchronous transmission frame and obtains the first uplink information, because the terminal sends the first uplink information to the base station by using the asynchronous transmission frame of the required length according to the necessary asynchronous transmission parameter information. It should be noted that when the terminal sends the first uplink information to the base station by using the asynchronous transmission frame, the timing advance used is 0. That is, the terminal determines the timing of receiving the downlink signal, and transmits the first uplink information to the base station using the asynchronous transmission frame based on the determined timing of receiving the downlink signal.
  • the same asynchronous transmission parameter information as the base station is obtained, and the asynchronous transmission parameter is obtained.
  • the number information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of the physical resource frame, and the length of the asynchronous transmission frame is determined according to the physical resource frame format information, according to the
  • the asynchronous transmission parameter information uses the asynchronous transmission frame to send the first uplink information to the base station.
  • the length of the asynchronous transmission frame determined by the terminal according to the asynchronous transmission frame format information in the asynchronous transmission parameter information is the same as the length of the asynchronous transmission frame determined by the base station, so even if it is lost
  • the base station can also receive the first uplink information, thereby implementing data uplink, without first establishing an RRC connection through signaling. In order to carry out the data uplink. In this way, the delay of uplink data transmission and the overhead of signaling when the out-of-synchronization state is reduced.
  • the terminal receives the asynchronous transmission parameter information sent by the base station, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame length information, and the terminal configures an asynchronous transmission frame, and according to the asynchronous The transmission parameter information uses the asynchronous transmission frame to send the first uplink information to the base station.
  • the first uplink information may determine a specific content according to a connection state between the terminal and the base station, and asynchronously transmit parameter information.
  • the method includes: using the physical resource to transmit data, the physical resource length information may be a specific part of the physical frame, the asynchronous transmission parameter may further include period information, and the terminal may further receive downlink information sent by the base station, and The second uplink information is sent to the base station, and is specifically described below.
  • another embodiment of the method for asynchronous uplink in the embodiment of the present invention includes:
  • the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of a physical resource frame.
  • the asynchronous transmission parameter information further includes condition information and period information for transmitting data by using the physical resource;
  • the physical resource frame length information includes length information of at least one of a frame header, a data transmission part, and a frame tail, and/or the physical resource. Total length information of the frame;
  • the base station After determining the asynchronous transmission parameters according to the requirements, the base station first sends the asynchronous transmission parameter information to the terminal, and the terminal can obtain the same asynchronous transmission parameter information as the base station by other means, such as the protocol configuration mode, in order to implement signaling interaction.
  • the asynchronous transmission parameter needs to include physical resource information and modulation and coding mode information, wherein the physical resource is a time-frequency domain resource, and is in LTE (Long Time).
  • LTE Long Time
  • the location of the physical resource block (PRB), and the modulation and coding mode may be QPSK (Quadrature Phase Shift Keying) or 1/2 coding;
  • the asynchronous transmission parameters also need to contain the length information of the physical resource frame.
  • the asynchronous transmission parameter information may further include condition information for transmitting data by using the physical resource, that is, which radio bearer data can be used for data transmission on the physical resource;
  • the channel resource, the asynchronous transmission parameter information further includes period information, which is used to indicate a period in which the base station sends the physical resource, that is, how long the physical resource may appear once, or how many physical resources may appear.
  • the length information of any part of the physical resource frame and/or the total length information of the physical resource frame may be set according to actual requirements, such that the length of the asynchronous transmission frame configured according to the physical resource frame is a frame allowed by the base station. length.
  • the asynchronous transmission parameter information may further include an identifier associated with the physical resource, which is not limited herein.
  • the specific method for the base station to send the asynchronous data transmission parameter may be a semi-static configuration through an RRC message, such as a broadcast message or a dedicated RRC message, or dynamically configured through a MAC layer or a physical layer message, such as MAC CE or PDCCH signaling; or
  • the RRC message is combined with the MAC layer or the physical layer message, wherein some of the parameters are notified by the RRC message, and another part of the message is notified by the MAC layer or the physical layer message; or some parameters are fixed by the protocol, such as the physical resource frame length information, and other parameters are The method is notified to the terminal.
  • the asynchronous transmission parameter may be sent to the terminal by using a message, or multiple messages are sent to the terminal.
  • the asynchronous transmission parameter may be used by one terminal alone or shared by multiple terminals, which is not limited herein.
  • 202 Determine, according to the physical resource frame format information, a length of an asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail.
  • the terminal configures an asynchronous transmission frame according to the physical resource frame length information, and the length of the asynchronous transmission frame is a required length for the terminal to perform asynchronous transmission with the base station.
  • a plurality of asynchronous transmission frame formats may be configured in advance, where each asynchronous transmission frame format corresponds to one identifier, and the physical resource frame length information in the asynchronous transmission parameter information may also be an identifier, and the terminal determines the specific use by the identifier.
  • the asynchronous transfer frame format determines the length of the asynchronous transfer frame.
  • the data information that meets the condition for transmitting the physical resource data is used to send the first uplink information to the base station by using the data transmission unit in the asynchronous transmission frame; and when the base station is in the radio resource control manner.
  • the first uplink information includes at least one of a buffer status report, data information, and a terminal identifier; or, when the base station is in a radio resource control RRC idle state, the first uplink information And including at least one of an RRC connection request message, data information, and a terminal identifier; or, when performing radio resource control RRC connection reestablishment with the base station, the first uplink information includes an RRC connection reestablishment request message, data information, and a cache. At least one of a status report and a terminal identification;
  • the base station receives the asynchronous transmission frame and obtains the first uplink information, because the terminal sends the first uplink information to the base station by using the asynchronous transmission frame of the required length according to the necessary asynchronous transmission parameter information.
  • the timing advance used is 0. That is, the terminal determines the timing of receiving the downlink signal, and transmits the first uplink information to the base station using the asynchronous transmission frame based on the determined timing of receiving the downlink signal.
  • the data information that meets the conditions for transmitting the physical resource data is transmitted by using the data transmission unit, so that interference of data lines of other terminals at adjacent times can be avoided.
  • the terminal may determine the content of the first uplink information according to the RRC connection state with the base station, and if the RRC connection state is in the RRC connection state, the terminal may directly send a buffer status report, indicating the data size of the uplink required by the terminal, and directly uplink the data information.
  • the terminal identifier where the terminal identifier is, for example, a C-RNTI (CellRadio Network Temporary Identifier), and the identifier is not required to be carried when the asynchronous transmission parameter is used by the terminal alone;
  • the RRC connection request message may be sent, or the data information may be directly sent.
  • the RRC connection reestablishment state is in progress, the RRC connection reestablishment request message may be sent, or the data information and the buffer status report may be directly sent.
  • the downlink information includes an uplink timing adjustment command and a positive acknowledgement of the first uplink information.
  • the downlink information further includes synchronization.
  • the downlink information further includes a synchronization uplink grant message and/or an RRC connection reestablishment message;
  • the adjustment value in the uplink timing adjustment command is determined according to the time when the base station receives the first uplink information and the deviation value of the receiving window, for example, when the base station receives the first uplink information.
  • the receiving window is delayed by ⁇ T, such as 1 microsecond, and the adjustment value carried by the base station in the uplink timing adjustment command is ⁇ T.
  • the terminal uses the ⁇ T value in subsequent data transmission. There are no restrictions here.
  • the base station may determine the content of the downlink information according to the connection state with the terminal.
  • the base station may send the synchronization uplink authorization message, and the terminal may send the uplink data, and the terminal identifier may be sent.
  • C-RNTI Cell Radio Network Temporary Identifier
  • connection establishment message is instructed to establish an RRC connection with the base station, and if the RRC connection is re-established, the RRC connection reestablishment message may be sent to indicate that the terminal reestablishes an RRC connection with the base station, and may also send a synchronization uplink grant message to indicate the terminal. Send upstream data.
  • the downlink information is masked by using an A-PUSCH-RNTI (Asynchronous Physical Uplink Shared Channel Radio Network Temporary Identifier), or a C-RNTI (CellRadio Network Temporary Identifier) ) cover up.
  • A-PUSCH-RNTI Asynchronous Physical Uplink Shared Channel Radio Network Temporary Identifier
  • C-RNTI CellRadio Network Temporary Identifier
  • the downlink information may be masked by using the C-RNTI.
  • the downlink information may use the A-PUSCH.
  • -RNTI is masked.
  • the downlink information includes a negative acknowledgement of the first uplink information.
  • the terminal After the downlink information received by the terminal includes a negative acknowledgement of the first uplink information, the terminal initiates a random access procedure, or reuses a new asynchronous transmission frame retransmission.
  • the first uplink information is described. I will not repeat them here.
  • the eNB When the eNB is in the radio resource control RRC connection state, apply a timing adjustment command, start a timing adjustment timer, and send second uplink information to the base station according to the synchronous uplink grant message, where the second uplink information is sent. Or the data information is included; or, when the eNB is in the radio resource control RRC idle state, sending the second uplink information to the base station according to the RRC connection setup message, where the second uplink information includes an RRC connection setup complete message; Or, when performing the RRC connection reestablishment state with the base station, sending, by using the RRC connection reestablishment message, second uplink information, where the second uplink information includes an RRC connection reestablishment complete message and data information;
  • the terminal sends the second uplink information with different content to the base station according to the connection state with the base station. It should be noted that, when the terminal is not in the RRC connection state with the base station, after the RRC connection establishment is completed, the subsequent information interaction step refers to the terminal that is in the RRC connection state with the base station, and details are not described herein.
  • the asynchronous transmission parameter information includes condition information for transmitting data by using the physical resource, and the accuracy of the uplink information received by the base station is improved; the asynchronous transmission parameter information further includes period information, which saves channel resources; The data information that meets the condition for transmitting the data of the physical resource is used to send the first uplink information to the base station by using the data transmission unit, so as to avoid interference of data lines of other terminals at adjacent times; the terminal may be located according to the base station. Different RRC connection states are used to determine the content of the first uplink information, which improves the efficiency of information interaction.
  • the terminal sends the first uplink information to the base station by using the asynchronous transmission frame according to the asynchronous transmission parameter information.
  • the asynchronous transmission frame may further include a physical random access channel PARCH.
  • the resource part is configured to transmit a preamble, or send a physical random access channel (PARCH) resource in the same manner as the asynchronous transmission frame is sent, where the PARCH resource is used to transmit a preamble, which is described in detail below.
  • PARCH physical random access channel
  • another embodiment of the method for asynchronous uplink in the embodiment of the present invention includes:
  • the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of a physical resource frame;
  • the asynchronous transmission parameter information further includes condition information and period information for transmitting data by using the physical resource;
  • the physical resource frame length information includes length information of at least one of a frame header, a data transmission part, and a frame tail, and/or the physical resource. Total length information of the frame;
  • the base station After determining the asynchronous transmission parameters according to the requirements, the base station first sends the asynchronous transmission parameter information to the terminal, and the terminal can obtain the same asynchronous transmission parameter information as the base station by other means, such as the protocol configuration mode, in order to implement signaling interaction.
  • the asynchronous transmission parameter needs to include the physical resource information and the modulation and coding mode information, wherein the physical resource is a time-frequency domain resource, and in the LTE (Long Time Evolution) system, the physical resource block (PRB) can be a physical resource. Block) position, modulation coding mode can be QPSK (Quadrature Phase Shift Keying) or 1/2 coding; in order to achieve asynchronous transmission, asynchronous transmission parameters are also needed Contains length information of physical resource frames.
  • the asynchronous transmission parameter information may further include condition information for transmitting data by using the physical resource, that is, which radio bearer data can be used for data transmission on the physical resource;
  • the channel resource, the asynchronous transmission parameter information further includes period information, which is used to indicate a period in which the base station sends the physical resource, that is, how long the physical resource may appear once, or how many physical resources may appear.
  • the length information of any part of the physical resource frame and/or the total length information of the physical resource frame may be set according to actual requirements, such that the length of the asynchronous transmission frame configured according to the physical resource frame is a frame allowed by the base station. length.
  • the asynchronous transmission parameter information may further include an identifier associated with the physical resource, which is not limited herein.
  • the specific method for the base station to send the asynchronous data transmission parameter may be a semi-static configuration through an RRC message, such as a broadcast message or a dedicated RRC message, or dynamically configured through a MAC layer or a physical layer message, such as MAC CE or PDCCH signaling; or
  • the RRC message is combined with the MAC layer or the physical layer message, wherein some of the parameters are notified by the RRC message, and another part of the message is notified by the MAC layer or the physical layer message; or some parameters are fixed by the protocol, such as the physical resource frame length information, and other parameters are The method is notified to the terminal.
  • the asynchronous transmission parameter may be sent to the terminal by using a message, or multiple messages are sent to the terminal.
  • the asynchronous transmission parameter may be used by one terminal alone or shared by multiple terminals, which is not limited herein.
  • the 302. Determine, according to the physical resource frame format information, a length of the asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail part, and the asynchronous transmission frame further includes a physical random access channel PRACH resource part.
  • the terminal configures an asynchronous transmission frame according to the physical resource frame length information, and the length of the asynchronous transmission frame is a required length for the terminal to perform asynchronous transmission with the base station.
  • a plurality of asynchronous transmission frame formats may be configured in advance, where each asynchronous transmission frame format corresponds to one identifier, and the physical resource frame length information in the asynchronous transmission parameter information may also be an identifier, and the terminal determines the specific use by the identifier.
  • the asynchronous transfer frame format determines the length of the asynchronous transfer frame.
  • the preamble may be obtained by the terminal from the reserved preamble space, or may be allocated by the base station to the terminal, which is not limited herein.
  • the first uplink information is sent to the base station; the first uplink information specifically includes: when the RRC connection state with the base station is in a radio resource control, the first uplink information includes a buffer status report, data information, and a terminal identifier.
  • the first uplink information includes at least one of an RRC connection request message, data information, and a terminal identifier; or
  • the first uplink information includes at least one of an RRC connection reestablishment request message, data information, a buffer status report, and a terminal identifier.
  • the base station receives the asynchronous transmission frame and obtains the first uplink information, because the terminal sends the first uplink information to the base station by using the asynchronous transmission frame of the required length according to the necessary asynchronous transmission parameter information.
  • the timing advance used is 0. That is, the terminal determines the timing of receiving the downlink signal, and transmits the first uplink information to the base station using the asynchronous transmission frame based on the determined timing of receiving the downlink signal.
  • the data information that meets the conditions for transmitting the physical resource data is transmitted by using the data transmission unit, so that interference of data lines of other terminals at adjacent times can be avoided.
  • the terminal may determine the content of the first uplink information according to the RRC connection state with the base station, and if the RRC connection state is in the RRC connection state, the terminal may directly send a buffer status report, indicating the data size of the uplink required by the terminal, and directly uplink the data information.
  • the terminal identifier where the terminal identifier is, for example, a C-RNTI (CellRadio Network Temporary Identifier), and the identifier is not required to be carried when the asynchronous transmission parameter is used by the terminal alone; In the RRC idle state, the RRC connection request message may be sent, or the data information may be directly sent.
  • C-RNTI CellRadio Network Temporary Identifier
  • the RRC connection reestablishment request message may be sent, or the data information and the buffer status report may be directly sent.
  • the terminal sends a preamble to the base station.
  • the terminal may also establish a connection by using a contention based random access or a non-contention based random access method.
  • step 305 is an optional step because when the base station does not have When receiving the first uplink information sent by the terminal, the terminal may also directly send a random access response message to the terminal.
  • the base station may further send a random access response message to the terminal, where the random access message includes the synchronous uplink.
  • the authorization message is used to indicate that the terminal can send the buffer status report or the uplink data.
  • the uplink timing advance information included in the random access message is used to indicate the time when the terminal sends the uplink information.
  • the base station when the terminal receives the downlink information including the positive acknowledgement as described in step 204 in the foregoing embodiment, the base station successfully receives the first uplink information, and therefore, the base station usually does not Sending a random access response message, the terminal does not receive the random access response message and applies a random access response message for uplink transmission; when the terminal receives the downlink information including the negative acknowledgement of the first uplink information, The base station does not successfully receive the first uplink information. Therefore, if the base station successfully receives the preamble, the base station usually sends a random access response message, and the terminal performs subsequent operations according to the random access response message.
  • the terminal After the terminal receives the random access response message, the terminal can establish a connection based on the contention-based random access or the non-contention-based random access method, and then perform the synchronous uplink, which is not limited herein.
  • the content in the second uplink information may be the same as or different from the content in the first uplink information. That is, the terminal may use the second uplink information to retransmit the first uplink information that is not successfully transmitted by using the asynchronous transmission frame, which is not limited herein.
  • the asynchronous transmission frame further includes a physical random access channel (PRACH) resource part, configured to transmit a preamble, and if the base station receives the asynchronous transmission frame, if the data transmission part of the asynchronous transmission frame cannot be parsed
  • PRACH physical random access channel
  • the preamble in the PRACH resource may also be obtained, and then a random access response message is sent to the terminal to establish an RRC connection, so that the terminal can perform synchronous uplink, which improves the stability of information interaction.
  • another embodiment of the method for asynchronous uplink in the embodiment of the present invention includes:
  • asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of a physical resource frame.
  • the base station After determining the asynchronous transmission parameters according to the requirements, the base station first sends the asynchronous transmission parameter information to the terminal, and the terminal can obtain the same asynchronous transmission parameter information as the base station by other means, such as the protocol configuration mode, in order to implement signaling interaction.
  • the asynchronous transmission parameters need to include physical resource information and modulation and coding mode information. In order to enable asynchronous transmission, the asynchronous transmission parameters also need to include the length information of the physical resource frame.
  • the receiving terminal uses the first uplink information that is sent by using an asynchronous transmission frame according to the asynchronous transmission parameter, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail.
  • the terminal configures an asynchronous transmission frame according to the physical resource frame length information, and the length of the asynchronous transmission frame is the required length for the terminal to perform asynchronous transmission with the base station.
  • the base station receives the asynchronous transmission frame and obtains the first uplink information, because the terminal sends the first uplink information to the base station by using the asynchronous transmission frame of the required length according to the necessary asynchronous transmission parameter information. It should be noted that when the terminal sends the first uplink information to the base station by using the asynchronous transmission frame, the timing advance used is 0. That is, the terminal determines the timing of receiving the downlink signal, and transmits the first uplink information to the base station using the asynchronous transmission frame based on the determined timing of receiving the downlink signal.
  • the asynchronous transmission frame sent by the terminal to the base station is the length of the frame that the base station can allow, and the base station can receive the asynchronous transmission frame, and the base station parses the content of the asynchronous transmission frame to obtain the An uplink information, so that even if the terminal and the base station are in an out-of-synchronization state, the terminal can perform uplink data transmission in time, which reduces the delay of uplink data transmission and the signaling overhead when the out-of-synchronization state is lost.
  • the base station determines the asynchronous transmission parameter information, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame length information, and the base station receiving terminal sends the asynchronous transmission frame according to the asynchronous transmission parameter.
  • the first uplink information, the asynchronous transmission frame includes a frame header, a data transmission portion, and a frame tail portion.
  • the first uplink information may be determined according to a connection state of the terminal and the base station, and the asynchronous transmission parameter information further includes condition information that uses the physical resource to transmit data, where the physical resource length information may be For a specific part of the physical frame, the asynchronous transmission parameter may further include period information, and the base station may also end to The terminal sends the downlink information, and the second uplink information that is sent by the terminal, and is specifically described below.
  • another embodiment of the method for asynchronous uplink in the embodiment of the present invention includes:
  • asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of a physical resource frame; and the asynchronous transmission parameter
  • the information further includes condition information and period information for transmitting data using the physical resource;
  • the physical resource frame length information includes length information of at least one of a frame header, a data transmission portion, and a frame tail, and/or a total length of the physical resource frame. information;
  • the base station After determining the asynchronous transmission parameters according to the requirements, the base station first sends the asynchronous transmission parameter information to the terminal, and the terminal can obtain the same asynchronous transmission parameter information as the base station by other means, such as the protocol configuration mode, in order to implement signaling interaction.
  • the asynchronous transmission parameter needs to include the physical resource information and the modulation and coding mode information, wherein the physical resource is a time-frequency domain resource, and in the LTE (Long Time Evolution) system, the physical resource block (PRB) can be a physical resource.
  • Block) position modulation coding mode may be QPSK (Quadrature Phase Shift Keying) or 1/2 coding; in order to realize asynchronous transmission, the asynchronous transmission parameter also needs to include the length information of the physical resource frame. .
  • the asynchronous transmission parameter information may further include condition information for transmitting data by using the physical resource, that is, which radio bearer data can be used for data transmission on the physical resource;
  • the channel resource, the asynchronous transmission parameter information further includes period information, which is used to indicate a period in which the base station sends the physical resource, that is, how long the physical resource may appear once, or how many physical resources may appear.
  • the length information of any part of the physical resource frame and/or the total length information of the physical resource frame may be set according to actual requirements, such that the length of the asynchronous transmission frame configured according to the physical resource frame is a frame allowed by the base station. length.
  • the asynchronous transmission parameter information may further include an identifier associated with the physical resource, which is not limited herein.
  • the specific method for the base station to send the asynchronous data transmission parameter may be a semi-static configuration through an RRC message, such as a broadcast message or a dedicated RRC message, or dynamically configured through a MAC layer or a physical layer message, such as MAC CE or PDCCH signaling; or
  • the RRC message is combined with the MAC layer or the physical layer message, wherein some of the parameters are notified by the RRC message, and another part of the message is notified by the MAC layer or the physical layer message; or some parameters are fixed by the protocol, such as the physical resource frame length information, and other parameters are The method is notified to the terminal.
  • the asynchronous transmission parameter may be passed through a The message is sent to the terminal, or multiple messages are sent to the terminal.
  • the asynchronous transmission parameter may be used by one terminal alone or shared by multiple terminals, which is not limited herein.
  • the data information that is used to receive the condition for transmitting the physical resource data uses the first uplink information that is sent by the data transmission unit in the asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission unit, and a frame tail;
  • the first uplink information includes at least one of a buffer status report, data information, and a terminal identifier; or, when the base station is in a radio resource control RRC idle state,
  • the first uplink information includes at least one of an RRC connection request message, data information, and a terminal identifier; or, when performing radio resource control RRC connection reestablishment with the base station, the first uplink information includes an RRC connection reestablishment request message.
  • the terminal configures an asynchronous transmission frame according to the physical resource frame length information, and the length of the asynchronous transmission frame is the required length for the terminal to perform asynchronous transmission with the base station.
  • a plurality of asynchronous transmission frame formats may be configured in advance, where each asynchronous transmission frame format corresponds to one identifier, and the physical resource frame length information in the asynchronous transmission parameter information may also be an identifier, and the terminal determines the specific use by the identifier.
  • the asynchronous transfer frame format determines the length of the asynchronous transfer frame.
  • the base station receives the asynchronous transmission frame and obtains the first uplink information, because the terminal sends the first uplink information to the base station by using the asynchronous transmission frame of the required length according to the necessary asynchronous transmission parameter information.
  • the timing advance used is 0. That is, the terminal determines the timing of receiving the downlink signal, and transmits the first uplink information to the base station using the asynchronous transmission frame based on the determined timing of receiving the downlink signal.
  • the data information that meets the conditions for transmitting the physical resource data is transmitted by using the data transmission unit, so that interference of data lines of other terminals at adjacent times can be avoided.
  • the terminal may determine the content of the first uplink information according to the RRC connection state with the base station, and if the RRC connection state is in the RRC connection state, the terminal may directly send a buffer status report, indicating the data size of the uplink required by the terminal, and directly uplink the data information.
  • the terminal identifier where the terminal identifier is, for example, a C-RNTI (CellRadio Network Temporary Identifier), and the identifier is not required to be carried when the asynchronous transmission parameter is used by the terminal alone;
  • the RRC connection request message may be sent, or the data information may be directly sent; if the RRC connection reestablishment state is in progress, the RRC connection reestablishment request message may be sent. Data information and cache status reports can also be sent directly.
  • C-RNTI CellRadio Network Temporary Identifier
  • the downlink information includes an uplink timing adjustment command and a positive acknowledgement of the first uplink information.
  • the downlink information further includes a synchronous uplink.
  • the downlink information further includes a synchronization uplink grant message and/or an RRC connection reestablishment message;
  • the adjustment value in the uplink timing adjustment command is determined according to the time when the base station receives the first uplink information and the deviation value of the receiving window. For example, when the base station receives the first uplink information, the time is ⁇ T later than the receiving window. For example, if the microsecond is used, the adjustment value carried by the base station in the uplink timing adjustment command is ⁇ T. After receiving the adjustment value, the terminal uses the ⁇ T value in subsequent data transmission. There are no restrictions here.
  • the base station may determine the content of the downlink information according to the connection state with the terminal.
  • the base station may send the synchronization uplink authorization message, and the terminal may send the uplink data, and the terminal identifier may be sent.
  • C-RNTI Cell Radio Network Temporary Identifier
  • connection establishment message is instructed to establish an RRC connection with the base station, and if the RRC connection is re-established, the RRC connection reestablishment message may be sent to indicate that the terminal reestablishes an RRC connection with the base station, and may also send a synchronization uplink grant message to indicate the terminal. Send upstream data.
  • the downlink information is masked by using an A-PUSCH-RNTI (Asynchronous Physical Uplink Shared Channel Radio Network Temporary Identifier), or a C-RNTI (CellRadio Network Temporary Identifier) ) cover up.
  • A-PUSCH-RNTI Asynchronous Physical Uplink Shared Channel Radio Network Temporary Identifier
  • C-RNTI CellRadio Network Temporary Identifier
  • the downlink information may be masked by using the C-RNTI.
  • the downlink information may use the A-PUSCH.
  • -RNTI is masked.
  • the downlink information includes a negative acknowledgement of the first uplink information.
  • the terminal After the downlink information received by the terminal includes a negative acknowledgement of the first uplink information, the terminal initiates a random access procedure, or is used again. The new asynchronous transmission frame retransmits the first uplink information. I will not repeat them here.
  • the receiving terminal sends second uplink information according to the synchronous uplink grant message, where the second uplink information includes data information; or, when the terminal And receiving, by the terminal, the second uplink information according to the RRC connection setup message, where the second uplink information includes an RRC connection setup complete message; or, when the base station is in the radio resource control RRC idle state,
  • the receiving terminal sends a second uplink information according to the RRC connection reestablishment message, where the second uplink information includes an RRC connection reestablishment complete message and/or data information;
  • the terminal sends the second uplink information with different content to the base station according to the connection state with the base station. It should be noted that, when the terminal is not in the RRC connection state with the base station, after the RRC connection establishment is completed, the subsequent information interaction step refers to the terminal that is in the RRC connection state with the base station, and details are not described herein.
  • the asynchronous transmission parameter information includes condition information for transmitting data by using the physical resource, and the accuracy of the uplink information received by the base station is improved; the asynchronous transmission parameter information further includes period information, which saves channel resources; The data information that meets the condition for transmitting the data of the physical resource is used to send the first uplink information to the base station by using the data transmission unit, so as to avoid interference of data lines of other terminals at adjacent times; the terminal may be located according to the base station. Different RRC connection states are used to determine the content of the first uplink information, which improves the efficiency of information interaction.
  • the first uplink information that is sent by the base station receiving terminal by using the asynchronous transmission frame according to the asynchronous transmission parameter information is described.
  • the asynchronous transmission frame may further include a physical random access channel PARCH resource.
  • PARCH resource is used for transmitting a preamble, which is described in detail below.
  • asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes length information of a physical resource frame; and the asynchronous transmission parameter
  • the information further includes condition information and period information for transmitting data using the physical resource;
  • the physical resource frame length information includes length information of at least one of a frame header, a data transmission portion, and a frame tail, and/or a total length of the physical resource frame.
  • the base station After determining the asynchronous transmission parameters according to the requirements, the base station first sends the asynchronous transmission parameter information to the terminal, and the terminal can obtain the same asynchronous transmission parameter information as the base station by other means, such as the protocol configuration mode, in order to implement signaling interaction.
  • the asynchronous transmission parameter needs to include the physical resource information and the modulation and coding mode information, wherein the physical resource is a time-frequency domain resource, and in the LTE (Long Time Evolution) system, the physical resource block (PRB) can be a physical resource.
  • Block) position modulation coding mode may be QPSK (Quadrature Phase Shift Keying) or 1/2 coding; in order to realize asynchronous transmission, the asynchronous transmission parameter also needs to include the length information of the physical resource frame. .
  • the asynchronous transmission parameter information may further include condition information for transmitting data by using the physical resource, that is, which radio bearer data can be used for data transmission on the physical resource;
  • the channel resource, the asynchronous transmission parameter information further includes period information, which is used to indicate a period in which the base station sends the physical resource, that is, how long the physical resource may appear once, or how many physical resources may appear.
  • the length information of any part of the physical resource frame and/or the total length information of the physical resource frame may be set according to actual requirements, such that the length of the asynchronous transmission frame configured according to the physical resource frame is a frame allowed by the base station. length.
  • the asynchronous transmission parameter information may further include an identifier associated with the physical resource, which is not limited herein.
  • the specific method for the base station to send the asynchronous data transmission parameter may be a semi-static configuration through an RRC message, such as a broadcast message or a dedicated RRC message, or dynamically configured through a MAC layer or a physical layer message, such as MAC CE or PDCCH signaling; or
  • the RRC message is combined with the MAC layer or the physical layer message, wherein some of the parameters are notified by the RRC message, and another part of the message is notified by the MAC layer or the physical layer message; or some parameters are fixed by the protocol, such as the physical resource frame length information, and other parameters are The method is notified to the terminal.
  • the asynchronous transmission parameter may be sent to the terminal by using a message, or multiple messages are sent to the terminal.
  • the asynchronous transmission parameter may be used by one terminal alone or shared by multiple terminals, which is not limited herein.
  • the receiving terminal uses a preamble sent by a PRACH resource part in an asynchronous transmission frame, where the asynchronous transmission frame includes a frame header, a data transmission part, and a frame tail part, and a random access channel PRACH resource part.
  • the terminal configures an asynchronous transmission frame according to the physical resource frame length information, and the length of the asynchronous transmission frame is a required length for the terminal to perform asynchronous transmission with the base station.
  • multiple asynchronous transmissions can also be pre-configured.
  • the preamble may be obtained by the terminal from the reserved preamble space, or may be allocated by the base station to the terminal, which is not limited herein.
  • Downlink information sent to the terminal where the downlink information includes a negative acknowledgement of the first uplink information.
  • step 603 is an optional step, because when the base station does not receive the first uplink information sent by the terminal, the random access response message may be directly sent to the terminal.
  • the base station may further send a random access response message to the terminal, where the random access message includes the synchronous uplink.
  • the authorization message is used to indicate that the terminal can send the buffer status report or the uplink data.
  • the uplink timing advance information included in the random access message is used to indicate the time when the terminal sends the uplink information.
  • the terminal when the terminal receives the downlink information including the positive acknowledgment as described in the foregoing embodiment, the base station successfully receives the first uplink information, and therefore, the base station usually does not send the random information again.
  • the access response message the terminal does not receive the random access response message and applies the random access response message for uplink transmission; when the terminal receives the downlink information including the negative acknowledgement of the first uplink information, the base station is illustrated
  • the first uplink information is not successfully received. Therefore, if the base station successfully receives the preamble, the base station usually sends a random access response message, and the terminal performs subsequent operations according to the random access response message.
  • the terminal After the terminal receives the random access response message, the terminal can establish a connection based on the contention-based random access or the non-contention-based random access method, and then perform the synchronous uplink, which is not limited herein.
  • the content in the second uplink information may be the same as or different from the content in the first uplink information. That is, the terminal may use the second uplink information to retransmit the first uplink information that is not successfully transmitted by using the asynchronous transmission frame, which is not limited herein.
  • the asynchronous transmission frame further includes a physical random access channel (PRACH) resource part, configured to transmit a preamble, and if the base station receives the asynchronous transmission frame, if the data transmission part of the asynchronous transmission frame cannot be parsed
  • PRACH physical random access channel
  • the preamble in the PRACH resource may also be obtained, and then a random access response message is sent to the terminal to establish an RRC connection, so that the terminal can perform synchronous uplink, which improves the stability of information interaction.
  • the random access channel PRACH resource is located in the asynchronous transmission frame, where the preamble is the same as the asynchronous transmission frame frequency band, but the time domain is different; in practical applications, The PRACH resource may also be sent as a single frame, and only needs to be the same as the time domain of the asynchronous transmission frame, so that the preamble is the same as the asynchronous transmission frame time domain, but the frequency bands are different, this embodiment Similar to the above embodiment, it will not be described here.
  • an example of a specific application scenario of the method for asynchronous uplink in the embodiment of the present invention is as follows:
  • the format of the asynchronous transmission frame is as follows: the frame header CP, the CP length is 0.5 ms, the data transmission part U-PUSCH, the U-PUSCH length is 1 ms, the frame tail Tail, the length of the Tail is 0.5 ms; the eNB will time domain resources
  • the PRB location, the coding mode is QPSK, and the format information of the asynchronous transmission frame is sent to the UE by sending a physical layer message; the UE determines, according to the received information, the format, length, time domain resource, and coding mode of the asynchronous transmission frame used by the UE, and Setting the timing advance amount to 0; the UE sends the first uplink information including the buffer status report, the data information, and the terminal identifier to the eNB; the eNB includes a positive acknowledgement, an uplink timing adjustment command, a synchronous uplink grant message, and the first uplink information.
  • the downlink information of the identifier information of the UE is sent to the UE; the UE applies a timing adjustment command, starts a timing adjustment timer, and sends the second uplink information including the data information to the eNB according to the synchronous uplink grant message;
  • the same asynchronous transmission parameter information is obtained, where the asynchronous transmission parameter information includes physical resource information, modulation and coding mode information, and physical resource frame format information, where the physical resource frame format information includes a physical resource frame.
  • Length information determining a length of the asynchronous transmission frame according to the physical resource frame format information, and using the asynchronous transmission frame according to the asynchronous transmission parameter information
  • the base station sends the first uplink information.
  • the length of the asynchronous transmission frame determined by the terminal according to the asynchronous transmission frame format information in the asynchronous transmission parameter information is the same as the length of the asynchronous transmission frame determined by the base station, so even if it is lost
  • the base station can also receive the first uplink information, thereby implementing data uplink, without first establishing an RRC connection through signaling. In order to carry out the data uplink. In this way, the delay of uplink data transmission and the overhead of signaling when the out-of-synchronization state is reduced.

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Abstract

一种异步上行的方法、终端及基站,用于当终端与基站处于失步状态时,减少上行数据传输的时延以及信令的开销,包括:获取与基站相同的异步传输参数信息,异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,物理资源帧格式信息包括物理资源帧的长度信息,根据物理资源帧格式信息确定异步传输帧的长度,根据异步传输参数信息使用异步传输帧向基站发送第一上行信息。由于终端所获取的异步传输参数信息与基站的相同,则终端确定的异步传输帧的长度与基站确定的异步传输帧的长度亦相同,所以即使在失步状态下,基站也能够接收到第一上行信息,实现数据的上行。这样,减少上行数据传输的时延以及信令的开销。

Description

一种异步上行的方法、终端及基站 技术领域
本发明涉及通信领域,特别是一种异步上行的方法、终端及基站。
背景技术
一般来说,终端与网络同步主要是两个过程,一个是帧同步,一个是时间同步,帧同步是指下行同步,而时间同步则是指上行同步,例如,在LTE(Long Time Evolution,长期演进)中,不同的UE(User Equipment,用户设备)的上行信号到达eNB(evolved Node B,演进型基站)时要时间对齐,为减少UE之间上行信号的干扰,如果UE在呼叫期间向远离基站的方向移动,则从基站发出的信号将“越来越迟”的到达UE,与此同时,UE的信号也会“越来越迟”的到达基站,延迟过长会导致基站收到的UE在本时隙上的信号与基站收下一个其它UE信号的时隙相互重叠,引起码间干扰。上行传输的时间对齐是通过在UE侧应用TA(Timing Advance,定时提前)来实现的,TA可以让UE提前发送信号。
在现有技术中,UE与eNB建立通信连接包括基于竞争的随机接入过程和基于非竞争的随机接入过程。其中,基于竞争的随机接入过程步骤为:第一步,UE随机选择前导码,并在可用的PRACH(Physical Random Access Channel,物理随机接入信道)资源上发送前导码给eNB;第二步,eNB收到UE发送到前导码后,发送随机接入响应消息RAR(random access response,随机接入响应)给UE,该消息中携带上行授权信息,UE上行定时提前量信息;第三步,UE根据RAR中的上行授权及定时提前量信息,发送上行消息给eNB,该上行消息中包含能够标识UE的内容;第四步,eNB发送竞争解决消息给UE,UE根据该竞争解决消息判断随机接入过程是否成功完成。基于非竞争的随机接入过程步骤为:第一步,即eNB为UE配置专用的前导码,可选的,还包括发送前导码的PRACH资源;第二步,UE在可用的PRACH资源上发送专用的前导码给eNB;第三步,eNB接收到所述前导码后,向UE发送随机接入响应消息RAR,该消息中携带上行授权信息,UE上行定时提前量信息;UE在接收到对应的随机接入响应消息后,认为随机接入过程成功完成,继而执行 后续数据收发过程。
当UE处于RRC(Radio Resource Control,无线资源控制)连接状态,并且保持上行同步时,UE则可发送上行数据。UE发送上行数据的过程一般为:步骤一:UE有上行数据到达后,在满足一定条件时会触发BSR(Buffer Status Report,缓冲状态报告),如果没有上行资源发送BSR,则会触发SR(Scheduling Request,调度请求),该SR代表UE有上行数据触发了BSR,需要发送;步骤二:eNB收到SR后,只能判断出UE有上行数据需要发送,但不知道UE缓存的数据的其它任何信息,根据调度算法,为其分配上行资源,并向UE发送UL Grant(Up Load Grant,上行授权)通知为其分配的上行资源;步骤三:UE收到UL Grant后,在为其分配的上行资源上发送BSR给eNB,告诉eNB当前缓存的上行数据量;步骤四:eNB收到BSR后,较准确的知道UE的上行数据量,并根据调度算法,为UE分配适当的上行资源,并向UE发送UL Grant(上行授权)通知为其分配的上行资源;步骤五:UE收到UL Grant后,在为其分配的上行资源上进行上行数据传输。但是,有的UE是没有专用的SR资源的,如果UE没有专用的SR资源,或者UE上行处于失步状态,则需使用随机接入过程请求上行数据传输资源,当UE有上行数据传输时,需要先请求资源或者建立RRC连接和数据承载,这样便大大地增加信令开销和时延。
发明内容
本发明实施例提供了一种异步上行的方法、终端及基站,可实现当终端与基站处于失步状态时,减少上行数据传输的时延以及信令的开销。
本发明实施例第一方面提供了一种异步上行的方法,包括:
获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
根据所述物理资源帧格式信息确定异步传输帧的长度;
根据所述异步传输参数信息使用所述异步传输帧向基站发送第一上行信息。
结合本发明实施例第一方面,本发明实施例第一方面的第一种实现方式 中,当与所述基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;
或者,
当与所述基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;
或者,
当与所述基站执行无线资源控制RRC连接重建时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个。
结合本发明实施例第一方面或第一方面的第一种实现方式,本发明实施例第一方面的第二种实现方式中,所述异步传输参数信息还包括使用物理资源传输数据的条件信息;
所述根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息包括:
将符合所述物理资源传输数据的条件的数据信息使用所述异步传输帧的数据传输部向所述基站发送第一上行信息。
结合本发明实施例第一方面或第一方面的第一种实现方式,本发明实施例第一方面的第三种实现方式中,所述物理资源帧长度信息包括:
帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所述物理资源帧的总长度信息。
结合本发明实施例第一方面或第一方面的第一种实现方式,本发明实施例第一方面的第四种实现方式中,所述异步传输参数信息还包括:周期信息,用于指示使用物理资源的周期。
结合本发明实施例第一方面的第一种实现方式,本发明实施例第一方面的第五种实现方式中,在根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息之后,所述方法还包括:
接收所述基站发送的下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;
当与所述基站处于无线资源控制RRC连接状态时,所述下行信息还包括 同步上行授权消息和/或所述终端的标识信息;
或者,
当与所述基站处于无线资源控制RRC空闲状态时,所述下行信息还包括RRC连接建立消息;
或者
当与所述基站执行无线资源控制RRC连接重建时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息。
结合本发明实施例第一方面的第五种实现方式,本发明实施例第一方面的第六种实现方式中,在接收所述基站发送的下行信息之后,所述方法还包括:
当与所述基站处于无线资源控制RRC连接状态时,应用定时调整命令,启动定时调整定时器,根据所述同步上行授权消息向所述基站发送第二上行信息,所述第二上行信息包括数据信息;
或者,
当与所述基站处于无线资源控制RRC空闲状态时,根据所述RRC连接建立消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接建立完成消息;
或者,
当与所述基站执行无线资源控制RRC连接重建时,根据所述RRC连接重建消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接重建完成消息和/或数据信息。
结合本发明实施例第一方面或第一方面的第一种实现方式,本发明实施例第一方面的第七种实现方式中,所述异步传输帧中还包括物理随机接入信道PRACH资源部,在根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息之前,所述方法还包括:
获取前导码;
所述根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息还包括:
使用所述PRACH资源部向所述基站发送所述前导码;
在使用所述PRACH资源部向所述基站发送所述前导码之后,还包括:
接收所述基站发送的随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
应用所述随机接入响应消息,向所述基站发送第二上行信息,所述第二上行信息包括数据信息。
结合本发明实施例第一方面或第一方面的第一种实现方式,本发明实施例第一方面的第八种实现方式中,所述方法还包括:
获取前导码;
将所述前导码通过物理随机接入信道PRACH资源发送给所述基站,所述物理随机接入信道PRACH资源与所述异步传输帧在时域上对齐;
在将所述前导码通过物理随机接入信道PRACH资源发送给所述基站之后,还包括:
接收所述基站发送的随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
应用所述随机接入响应消息,向所述基站发送第二上行信息,所述第二上行信息包括数据信息。
结合本发明实施例第一方面或第一方面的第一种实现方式,本发明实施例第一方面的第九种实现方式中,所述获取与基站相同的异步传输参数信息包括:
通过接收无线资源控制RRC层消息、接收媒体接入控制层消息、接收物理层消息以及协议预配置四者中至少一个方式获取。
本发明实施例第二方面提供了一种异步上行的方法,包括:
确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
接收终端根据所述异步传输参数使用异步传输帧发送的第一上行信息。
结合本发明实施例第二方面,本发明实施例第二方面的第一种实现方式中,当所述终端与基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;
或者,
当所述终端与基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;
或者,
当所述终端与基站执行无线资源控制RRC连接重建状态时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个。
结合本发明实施例第二方面或第二方面的第一种实现方式,本发明实施例第二方面的第二种实现方式中,所述异步传输参数信息还包括使用所述物理资源传输数据的条件信息;
所述接收所述终端根据所述异步传输参数使用异步传输帧发送的第一上行信息包括:
接收符合所述物理资源传输数据的条件的数据信息使用所述异步传输帧的数据传输部发送的第一上行信息。
结合本发明实施例第二方面或第二方面的第一种实现方式,本发明实施例第二方面的第三种实现方式中,所述物理资源帧长度信息包括:
帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或物理资源帧的总长度信息。
结合本发明实施例第二方面或第二方面的第一种实现方式,本发明实施例第二方面的第四种实现方式中,所述异步传输参数信息还包括:周期信息,用于指示所述物理资源的周期。
结合本发明实施例第二方面的第一种实现方式,本发明实施例第二方面的第五种实现方式中,在接收所述终端根据所述异步传输参数使用异步传输帧发送的第一上行信息之后,所述方法还包括:
向所述终端发送下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;
当所述终端与基站处于无线资源控制RRC连接状态时,所述下行信息还包括同步上行授权消息和/或所述终端的标识信息;
或者,
当所述终端与基站处于无线资源控制RRC空闲状态时,所述下行信息还 包括RRC连接建立消息;
或者,
当所述终端与基站执行无线资源控制RRC连接重建状态时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息。
结合本发明实施例第二方面的第五种实现方式,本发明实施例第二方面的第六种实现方式中,在向所述终端发送下行信息之后,所述方法还包括:
当所述终端与基站处于无线资源控制RRC连接状态时,接收所述终端根据所述同步上行授权消息发送第二上行信息,所述第二上行信息包括数据信息;
或者,
当所述终端与基站处于无线资源控制RRC空闲状态时,接收所述终端根据所述RRC连接建立消息向发送第二上行信息,所述第二上行信息包括RRC连接建立完成消息;
或者,
当所述终端与基站执行无线资源控制RRC连接重建时,接收所述终端根据所述RRC连接重建消息向发送第二上行信息,所述第二上行信息包括RRC连接重建完成消息和/或数据信息。
结合本发明实施例第二方面或第二方面的第一种实现方式,本发明实施例第二方面的第七种实现方式中,所述异步传输帧中还包括物理随机接入信道PRACH资源部,所述接收所述终端根据所述异步传输参数使用异步传输帧发送的第一上行信息还包括:
接收终端使用所述PRACH资源部发送的前导码;
向所述终端发送随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
接收所述终端发送的第二上行信息,所述第二上行信息包括数据信息。
结合本发明实施例第二方面或第二方面的第一种实现方式,本发明实施例第二方面的第八种实现方式中,所述方法还包括:
接收所述终端通过随机接入信道PRACH资源发送的前导码,所述PRACH资源与所述异步传输帧在时域上对齐;
向所述终端发送随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
接收所述终端发送的第二上行信息,所述第二上行信息包括数据信息。
结合本发明实施例第二方面或第二方面的第一种实现方式,本发明实施例第二方面的第九种实现方式中,在确定异步传输参数信息之后,所述方法还包括:
将所述异步传输参数信息通过发送无线资源控制RRC层消息、发送媒体接入控制层消息、发送物理层消息以及协议预配置四者中至少一个方式通知所述终端。
本发明实施例第三方面提供了一种终端,包括:
第一获取单元,用于获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
第一确定单元,用于根据所述物理资源帧格式信息确定异步传输帧的长度;
第一发送单元,用于根据所述异步传输参数信息使用所述异步传输帧向基站发送第一上行信息。
结合本发明实施例第三方面,本发明实施例第三方面的第一种实现方式中,当与所述基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;
或者,
当与所述基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;
或者,
当与所述基站执行无线资源控制RRC连接重建时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个。
结合本发明实施例第三方面或第三方面的第一种实现方式,本发明实施例第三方面的第二种实现方式中,所述异步传输参数信息还包括使用物理资源传 输数据的条件信息;
所述第一发送单元包括:
第一发送模块,用于将符合所述物理资源传输数据的条件的数据信息使用所述数据传输部向所述基站发送第一上行信息。
结合本发明实施例第三方面或第三方面的第一种实现方式,本发明实施例第三方面的第三种实现方式中,所述物理资源帧长度信息包括:
帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所述物理资源帧的总长度信息。
结合本发明实施例第三方面或第三方面的第一种实现方式,本发明实施例第三方面的第四种实现方式中,所述异步传输参数信息还包括:周期信息,用于指示使用物理资源的周期。
结合本发明实施例第三方面的第二种实现方式,本发明实施例第三方面的第五种实现方式中,在根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息之后,所述终端还包括:
第一接收单元,用于接收所述基站发送的下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;
当与所述基站处于无线资源控制RRC连接状态时,所述下行信息还包括同步上行授权消息和/或所述终端的标识信息;
或者,
当与所述基站处于无线资源控制RRC空闲状态时,所述下行信息还包括RRC连接建立消息;
或者
当与所述基站执行无线资源控制RRC连接重建时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息。
结合本发明实施例第三方面的第五种实现方式,本发明实施例第三方面的第六种实现方式中,在接收所述基站发送的下行信息之后,所述终端还包括:
第一应用单元,用于当与所述基站处于无线资源控制RRC连接状态时,应用定时调整命令,启动定时调整定时器;
第二发送单元,用于当与所述基站处于无线资源控制RRC连接状态时, 根据所述同步上行授权消息向所述基站发送第二上行信息,所述第二上行信息包括数据信息;
或者,
当与所述基站处于无线资源控制RRC空闲状态时,根据所述RRC连接建立消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接建立完成消息;
或者,
当与所述基站执行无线资源控制RRC连接重建时,根据所述RRC连接重建消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接重建完成消息和/或数据信息。
结合本发明实施例第三方面或第三方面的第一种实现方式,本发明实施例第三方面的第七种实现方式中,所述异步传输帧中还包括物理随机接入信道PRACH资源部,在根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息之前,所述终端还包括:
第二获取单元,用于获取前导码;
所述第一发送单元还包括:
第二发送模块,用于使用所述PRACH资源部向所述基站发送所述前导码;
在使用所述PRACH资源部向所述基站发送所述前导码之后,还包括:
第二接收单元,用于接收所述基站发送的随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
第二应用单元,用于应用所述随机接入响应消息;
第三发送单元,用于向所述基站发送第二上行信息,所述第二上行信息包括数据信息。
结合本发明实施例第三方面或第三方面的第一种实现方式,本发明实施例第三方面的第八种实现方式中,所述终端还包括:
第三获取单元,用于获取前导码;
所述第一发送模块还包括:
第三发送模块,用于将所述前导码通过物理随机接入信道PRACH资源发送给所述基站,所述物理随机接入信道PRACH资源与所述异步传输帧在时域 上对齐;
在将所述前导码通过物理随机接入信道PRACH资源发送给所述基站之后,还包括:
第三接收单元,用于接收所述基站发送的随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
第三应用单元,用于应用所述随机接入响应消息;
第四发送单元,用于向所述基站发送第二上行信息,所述第二上行信息包括数据信息。
结合本发明实施例第三方面或第三方面的第一种实现方式,本发明实施例第三方面的第九种实现方式中,所述第一获取单元还包括:
第一获取模块,用于通过接收无线资源控制RRC层消息、接收媒体接入控制层消息、接收物理层消息以及协议预配置四者中至少一个方式获取。
本发明实施例第四方面提供了一种基站,包括:
第二确定单元,用于确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
第四接收单元,用于接收终端根据所述异步传输参数使用异步传输帧发送的第一上行信息。
结合本发明实施例第四方面,本发明实施例第四方面的第一种实现方式中,当所述终端与基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;
或者,
当所述终端与基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;
或者,
当所述终端与基站执行无线资源控制RRC连接重建状态时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个。
结合本发明实施例第四方面或第四方面的第一种实现方式,本发明实施例 第四方面的第二种实现方式中,所述异步传输参数信息还包括使用物理资源传输数据的条件信息;
所述第四接收单元包括:
第四接收模块,用于接收符合所述物理资源传输数据的条件的数据信息使用所述异步传输帧中数据传输部发送的第一上行信息。
结合本发明实施例第四方面或第四方面的第一种实现方式,本发明实施例第四方面的第三种实现方式中,所述物理资源帧长度信息包括:
帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或物理资源帧的总长度信息。
结合本发明实施例第四方面或第四方面的第一种实现方式,本发明实施例第四方面的第四种实现方式中,所述异步传输参数信息还包括:周期信息,用于指示使用物理资源的周期。
结合本发明实施例第四方面的第一种实现方式,本发明实施例第四方面的第五种实现方式中,在接收所述终端根据所述异步传输参数使用异步传输帧发送的第一上行信息之后,所述基站还包括:
第五发送单元,用于向所述终端发送下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;
当所述终端与基站处于无线资源控制RRC连接状态时,所述下行信息还包括同步上行授权消息和/或所述终端的标识信息;
或者,
当所述终端与基站处于无线资源控制RRC空闲状态时,所述下行信息还包括RRC连接建立消息;
或者,
当所述终端与基站执行无线资源控制RRC连接重建状态时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息。
结合本发明实施例第四方面的第五种实现方式,本发明实施例第四方面的第六种实现方式中,在向所述终端发送下行信息之后,所述基站还包括:
第五接收单元,用于当所述终端与基站处于无线资源控制RRC连接状态时,接收所述终端根据所述同步上行授权消息发送第二上行信息,所述第二上 行信息包括数据信息;
或者,
当所述终端与基站处于无线资源控制RRC空闲状态时,接收所述终端根据所述RRC连接建立消息向发送第二上行信息,所述第二上行信息包括RRC连接建立完成消息;
或者,
当所述终端与基站执行无线资源控制RRC连接重建时,接收所述终端根据所述RRC连接重建消息向发送第二上行信息,所述第二上行信息包括RRC连接重建完成消息和/或数据信息。
结合本发明实施例第四方面或第四方面的第一种实现方式,本发明实施例第四方面的第七种实现方式中,所述异步传输帧中还包括物理随机接入信道PRACH资源部,所述第四接收单元还包括:
第五接收模块,用于接收终端使用所述PRACH资源部发送的前导码;
第六发送单元,用于向所述终端发送随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
第六接收单元,用于接收所述终端发送的第二上行信息,所述第二上行信息包括数据信息。
结合本发明实施例第四方面或第四方面的第一种实现方式,本发明实施例第四方面的第八种实现方式中,所述基站还包括:
第七接收单元,用于接收所述终端通过随机接入信道PRACH资源发送的前导码,所述PRACH资源与所述异步传输帧在时域上对齐;
向所述终端发送随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
接收所述终端发送的第二上行信息,所述第二上行信息包括数据信息。
结合本发明实施例第四方面或第四方面的第一种实现方式,本发明实施例第四方面的第九种实现方式中,在确定异步传输参数信息之后,所述基站还包括:
通知单元,用于将所述异步传输参数信息通过发送无线资源控制RRC层消息、发送媒体接入控制层消息、发送物理层消息以及协议预配置四者中至少 一个方式通知所述终端。
本发明第二方面提供一种,包括:
本发明实施例提供了一种异步上行的方法,用于当终端与基站处于失步状态时,减少上行数据传输的时延以及信令的开销包括:获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息,根据所述物理资源帧格式信息确定异步传输帧的长度,根据所述异步传输参数信息使用所述异步传输帧向基站发送第一上行信息。由于终端所获取的异步传输参数信息与基站的相同,则终端根据异步传输参数信息中异步传输帧格式信息确定的异步传输帧的长度与基站确定的异步传输帧的长度亦相同,所以即使在失步状态下,当终端根据异步传输参数信息使用异步传输帧向基站发送第一上行信息时,基站也能够接收到所述第一上行信息,从而实现数据的上行,无需先通过信令建立RRC连接才能进行数据的上行。这样,减少了失步状态时,上行数据传输的时延以及信令的开销。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本发明实施例中异步上行的终端的一个实施例示意图;
图2为本发明实施例中异步上行的终端的另一个实施例示意图;
图3为本发明实施例中异步上行的终端的另一个实施例示意图;
图4为本发明实施例中异步上行的基站的一个实施例示意图;
图5为本发明实施例中异步上行的基站的另一个实施例示意图;
图6为本发明实施例中异步上行的基站的另一个实施例示意图;
图7为本发明实施例中异步上行的终端的另一个实施例示意图;
图8为本发明实施例中异步上行的基站的另一个实施例示意图;
图9为本发明实施例中异步上行的方法的一个实施例示意图;
图10为本发明实施例中异步上行的方法的一个实施例示意图;
图11为本发明实施例中异步上行的方法的一个实施例示意图;
图12为本发明实施例中异步上行的方法的一个实施例示意图;
图13为本发明实施例中异步上行的方法的一个实施例示意图;
图14为本发明实施例中异步上行的方法的一个实施例示意图;
图15为本发明实施例中异步上行的方法的一个应用场景实施例示意图。
具体实施方式
本发明实施例提供了一种异步上行的方法、终端及基站,用于当终端与基站处于失步状态时,减少上行数据传输的时延以及信令的开销。
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
参照图1所示,本发明实施例中终端的一种实施例包括:
第一获取单元701,用于获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
当按照需求确定好异步传输参数后,基站会先将异步传输参数信息发送给终端,终端也可以通过其他方式获取与基站相同的异步传输参数信息,如通过协议配置的方式,为了实现信令交互,异步传输参数中需要包含有物理资源信息与调制编码方式信息,为了能够实现异步传输,异步传输参数中还需要包含有物理资源帧的长度信息。
第一确定单元702,用于根据所述物理资源帧格式信息确定异步传输帧的长度,所述异步传输帧包括帧头部、数据传输部以及帧尾部;
终端根据物理资源帧长度信息配置异步传输帧,则异步传输帧的长度为终端与基站实现异步传输的所需长度。
第一发送单元703,用于根据所述异步传输参数信息使用所述异步传输帧向基站发送第一上行信息;
由于终端根据必要的异步传输参数信息使用所需长度的异步传输帧向基站发送第一上行信息,基站则会接收到所述异步传输帧,并可以获取所述第一上行信。需要说明的是,当终端使用异步传输帧向基站发送第一上行信息时,使用的定时提前量为0。即,终端确定接收下行信号的定时,并以该确定的接收下行信号的定时为基准,使用异步传输帧向基站发送第一上行信息。
本发明实施例中,获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息,根据所述物理资源帧格式信息确定异步传输帧的长度,根据所述异步传输参数信息使用所述异步传输帧向基站发送第一上行信息。由于终端所获取的异步传输参数信息与基站的相同,则终端根据异步传输参数信息中异步传输帧格式信息确定的异步传输帧的长度与基站确定的异步传输帧的长度亦相同,所以即使在失步状态下,当终端根据异步传输参数信息使用异步传输帧向基站发送第一上行信息时,基站也能够接收到所述第一上行信息,从而实现数据的上行,无需先通过信令建立RRC连接才能进行数据的上行。这样,减少了失步状态时,上行数据传输的时延以及信令的开销。
上述实施例中,描述了终端接收基站发送的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧长度信息,终端配置异步传输帧,并根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息,在实际应用中,所述第一上行信息可以根据所述终端与基站的连接状态来确定具体内容,异步传输参数信息还包括使用所述物理资源传输数据的条件信息,所述物理资源长度信息可以为物理帧的具体某个部分,所述异步传输参数还可以包括周期信息,终端还可以接收基站发送的下行信息,以及向基站发送第二上行信息,下面进行具体描述,参照图2所示,本发明实施例中终端另一实施例包括:
第一获取单元801,用于获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;所述异步传输参数信息还包括使用物理资源传输数据的条件信息、周期信息;所述物理资源帧长 度信息包括帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所述物理资源帧的总长度信息;
当按照需求确定好异步传输参数后,基站会先将异步传输参数信息发送给终端,终端也可以通过其他方式获取与基站相同的异步传输参数信息,如通过协议配置的方式,为了实现信令交互,异步传输参数中需要包含有物理资源信息与调制编码方式信息,其中,物理资源为时频域资源,在LTE(Long Time Evolution,长期演进)系统中,可以是PRB(physical resource block,物理资源块)位置,调制编码方式可以为QPSK(Quadrature Phase Shift Keying,正交相移键控)或1/2编码等;为了能够实现异步传输,异步传输参数中还需要包含有物理资源帧的长度信息。为了提高基站接收到的上行信息的准确性,所述异步传输参数信息还可以包括使用所述物理资源传输数据的条件信息,即哪些无线承载数据可以再所述物理资源上进行数据传输;为了节省信道资源,所述异步传输参数信息还包括周期信息,用于指示所述基站发送所述物理资源的周期,即如隔多长时间所述物理资源可以出现一次,或所述物理资源可以出现多少次;可以根据实际需求设置物理资源帧的任何一个部分的长度信息和/或物理资源帧的总长度信息,使得根据所述物理资源帧配置的异步传输帧的长度为基站所允许接收的帧的长度。其中,所述异步传输参数信息还可以包括与所述物理资源关联的标识,此处不做限定。
其中,基站发送异步数据传输参数的具体方法可以是通过RRC消息,如广播消息或者专用RRC消息半静态的配置;或者通过MAC层或物理层消息,如MAC CE或PDCCH信令动态配置;或者通过RRC消息和MAC层或物理层消息结合,其中一部分参数由RRC消息通知,另一部分消息由MAC层或物理层消息通知;或者通过协议固定一部分参数,如上述物理资源帧长度信息,其它参数通过上述方式通知给终端。可选的,所述异步传输参数可以通过一条消息发送给终端,或者多条消息发送给终端。其中,所述异步传输参数可以由一个终端单独使用,或者多个终端共享,此处不作限定。
第一确定单元802,用于根据所述物理资源帧格式信息确定异步传输帧的长度,所述异步传输帧包括帧头部、数据传输部以及帧尾部;
终端根据物理资源帧长度信息配置异步传输帧,则异步传输帧的长度为终 端与基站实现异步传输的所需长度。可选的,还可以预先配置多个异步传输帧格式,其中每个异步传输帧格式对应一个标识,在异步传输参数信息中的物理资源帧长度信息也可以是标识,终端由该标识确定具体使用的异步传输帧格式,以确定异步传输帧的长度。
第一发送单元803包括第一发送模块8031,用于将符合物理资源传输数据的条件的数据信息使用所述异步传输帧的数据传输部向所述基站发送第一上行信息;当与所述基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;或者,当与所述基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;或者,当与所述基站执行无线资源控制RRC连接重建时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个;
由于终端根据必要的异步传输参数信息使用所需长度的异步传输帧向基站发送第一上行信息,基站则会接收到所述异步传输帧,并可以获取所述第一上行信息。需要说明的是,当终端使用异步传输帧向基站发送第一上行信息时,使用的定时提前量为0。即,终端确定接收下行信号的定时,并以该确定的接收下行信号的定时为基准,使用异步传输帧向基站发送第一上行信息。将符合所述物理资源传输数据的条件的数据信息使用所述数据传输部进行传输,可以避免对其它终端在相邻时间的数据行成干扰。终端可以根据与基站处于不同的RRC连接状态,来确定第一上行信息的内容,若处于RRC连接状态,则可直接发送缓存状态报告,指示终端所需要上行的数据大小,还可以直接上行数据信息及终端标识,所述终端标识如C-RNTI(CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识),需要说明的是,当所述异步传输参数是所述终端单独使用时,则该标识可以不用携带;若处于RRC空闲状态时,则可以发送RRC连接请求消息,也可以直接发送数据信息;若处于RRC连接重建状态时,则可以发送RRC连接重建请求消息,也可以直接发送数据信息以及缓存状态报告。
第一接收单元804,用于接收所述基站发送的下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;当与所述基站处于无线资 源控制RRC连接状态时,所述下行信息还包括同步上行授权消息和/或所述终端的标识信息;或者,当与所述基站处于无线资源控制RRC空闲状态时,所述下行信息还包括RRC连接建立消息;或者,当与所述基站执行无线资源控制RRC连接重建时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息;
通常,上行定时调整命令中的调整值是根据基站接收所述第一上行信息的时间与接收窗的偏差值来确定的,比如当基站接收所述第一上行信息的时间比接收窗晚ΔT,如1微秒,则基站在上行定时调整命令携带的调整值为ΔT,终端接收到该调整值后,在后续数据传输过程中,使用该ΔT值。此处不作任何限定。
基站可以根据与终端的连接状态,来确定下行信息的内容,当处于RRC连接状态时,则可以发送同步上行授权消息,指示所述终端发送上行数据,还可以发送终端标识,所述终端标识如C-RNTI(CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识),需要说明的是,当所述异步传输参数是所述终端单独使用时,则该标识可以不用携带;如处于RRC空闲状态时,则可以发送RRC连接建立消息,指示终端与基站建立RRC连接,若处于RRC连接重建状态时,则可以发送RRC连接重建消息,指示所述终端与基站重建RRC连接,还可以发送同步上行授权消息,指示所述终端发送上行数据。
可选的,所述下行信息使用A-PUSCH-RNTI(Asynchronous Physical Uplink Shared Channel Radio Network Temporary Identifier异步物理上行共享信道无线网络临时标识)加掩,或者使用C-RNTI(CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识)加掩。具体的,当UE在上行信息中包含C-RNTI时,所述下行信息可以使用C-RNTI加掩,当UE在上行信息中包含A-PUSCH-RNTI时,所述下行信息可以使用A-PUSCH-RNTI加掩。
或者,所述下行信息包括第一上行信息的否定确认;当终端接收到的下行信息包括第一上行信息的否定确认后,终端发起随机接入过程,或者重新使用新的异步传输帧重传所述第一上行信息。在此不做赘述。
第一应用单元805,用于当与所述基站处于无线资源控制RRC连接状态 时,应用定时调整命令,启动定时调整定时器;
第二发送单元806,用于根据所述同步上行授权消息向所述基站发送第二上行信息,所述第二上行信息包括数据信息;或者,当与所述基站处于无线资源控制RRC空闲状态时,根据所述RRC连接建立消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接建立完成消息;或者,当与所述基站执行无线资源控制RRC连接重建状态时,根据所述RRC连接重建消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接重建完成消息以及数据信息;
终端根据与基站处于不同的连接状态,向基站发送内容不同的第二上行信息。需要说明的是,当与所述基站不是处于RRC连接状态的终端,在完成RRC连接建立后,后续的信息交互步骤参照与所述基站处于RRC连接状态的终端,此处不做赘述。
本发明实施例中,异步传输参数信息包括使用所述物理资源传输数据的条件信息,提高了基站接收到的上行信息的准确性;所述异步传输参数信息还包括周期信息,节省了信道资源;将符合所述物理资源传输数据的条件的数据信息使用所述数据传输部向所述基站发送第一上行信息,可以避免对其它终端在相邻时间的数据行成干扰;终端可以根据与基站处于不同的RRC连接状态,来确定第一上行信息的内容,提高了信息交互的效率。
上述实施例中,描述了终端根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息,在实际应用中,所述异步传输帧还可以包括物理随机接入信道PARCH资源部,用于传输前导码,或者在发送所述异步传输帧的同时域中还发送物理随机接入信道PARCH资源,所述PARCH资源上用于传输前导码,下面进行具体描述,参照图3所示,本发明实施例中终端的另一实施例包括:
第一获取单元901,用于获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;所述异步传输参数信息还包括使用物理资源传输数据的条件信息、周期信息;所述物理资源帧长度信息包括帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所 述物理资源帧的总长度信息;
当按照需求确定好异步传输参数后,基站会先将异步传输参数信息发送给终端,终端也可以通过其他方式获取与基站相同的异步传输参数信息,如通过协议配置的方式,为了实现信令交互,异步传输参数中需要包含有物理资源信息与调制编码方式信息,其中,物理资源为时频域资源,在LTE(Long Time Evolution,长期演进)系统中,可以是PRB(physical resource block,物理资源块)位置,调制编码方式可以为QPSK(Quadrature Phase Shift Keying,正交相移键控)或1/2编码等;为了能够实现异步传输,异步传输参数中还需要包含有物理资源帧的长度信息。为了提高基站接收到的上行信息的准确性,所述异步传输参数信息还可以包括使用所述物理资源传输数据的条件信息,即哪些无线承载数据可以再所述物理资源上进行数据传输;为了节省信道资源,所述异步传输参数信息还包括周期信息,用于指示所述基站发送所述物理资源的周期,即如隔多长时间所述物理资源可以出现一次,或所述物理资源可以出现多少次;可以根据实际需求设置物理资源帧的任何一个部分的长度信息和/或物理资源帧的总长度信息,使得根据所述物理资源帧配置的异步传输帧的长度为基站所允许接收的帧的长度。其中,所述异步传输参数信息还可以包括与所述物理资源关联的标识,此处不做限定。
其中,基站发送异步数据传输参数的具体方法可以是通过RRC消息,如广播消息或者专用RRC消息半静态的配置;或者通过MAC层或物理层消息,如MAC CE或PDCCH信令动态配置;或者通过RRC消息和MAC层或物理层消息结合,其中一部分参数由RRC消息通知,另一部分消息由MAC层或物理层消息通知;或者通过协议固定一部分参数,如上述物理资源帧长度信息,其它参数通过上述方式通知给终端。可选的,所述异步传输参数可以通过一条消息发送给终端,或者多条消息发送给终端。其中,所述异步传输参数可以由一个终端单独使用,或者多个终端共享,此处不作限定。
第一确定单元902,用于根据所述物理资源帧格式信息确定异步传输帧,所述异步传输帧包括帧头部、数据传输部以及帧尾部,异步传输帧中还包括物理随机接入信道PRACH资源部;
终端根据物理资源帧长度信息配置异步传输帧,则异步传输帧的长度为终 端与基站实现异步传输的所需长度。可选的,还可以预先配置多个异步传输帧格式,其中每个异步传输帧格式对应一个标识,在异步传输参数信息中的物理资源帧长度信息也可以是标识,终端由该标识确定具体使用的异步传输帧格式,以确定异步传输帧的长度。
第二获取单元903,用于获取前导码;
前导码可以为终端从预留的前导码空间内获取,也可以为基站为所述终端分配,此处不做限定。
第一发送单元904还包括第一发送模块9041,用于将符合所述物理资源传输数据的条件的数据信息使用所述异步传输帧的数据传输部向所述基站发送第一上行信息;当与所述基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;或者,当与所述基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;或者,当与所述基站执行无线资源控制RRC连接重建时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个;
第一发送单元904还包括第二发送模块9042,用于使用所述PRACH资源部向所述基站发送所述前导码;
由于终端根据必要的异步传输参数信息使用所需长度的异步传输帧向基站发送第一上行信息,基站则会接收到所述异步传输帧,并可以获取所述第一上行信息。需要说明的是,当终端使用异步传输帧向基站发送第一上行信息时,使用的定时提前量为0。即,终端确定接收下行信号的定时,并以该确定的接收下行信号的定时为基准,使用异步传输帧向基站发送第一上行信息。将符合所述物理资源传输数据的条件的数据信息使用所述数据传输部进行传输,可以避免对其它终端在相邻时间的数据行成干扰。终端可以根据与基站处于不同的RRC连接状态,来确定第一上行信息的内容,若处于RRC连接状态,则可直接发送缓存状态报告,指示终端所需要上行的数据大小,还可以直接上行数据信息及终端标识,所述终端标识如C-RNTI(CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识),需要说明的是,当所述异步传输参数是所述终端单独使用时,则该标识可以不用携带; 若处于RRC空闲状态时,则可以发送RRC连接请求消息,也可以直接发送数据信息;若处于RRC连接重建状态时,则可以发送RRC连接重建请求消息,也可以直接发送数据信息以及缓存状态报告。终端向所述基站发送前导码,为了防止当终端所述基站连接不成功时,还可以通过基于竞争随机接入或基于非竞争随机接入方式来建立连接。
第一接收单元905还包括第一接收模块9051,用于接收所述基站发送的下行信息,所述下行信息包括第一上行信息的否定确认;
当基站没有接收到终端发送的第一上行信息,或者没有成功解析出所述第一上行信息的内容,则基站会给所述终端发送下行信息,所述下行信息包括第一上行信息的否定确认。需要说明的是第一接受模块9051为可选模块,因为当基站没有接受到所述终端发送的第一上行信息时,也可以直接发随机接入响应消息给终端。
第二接收单元906,用于接收所述基站发送的随机接入响应消息,所述随机接入响应消息包括同步上行授权消息以及上行定时提前量信息;
当基站没有接收到终端发送的第一上行信息,但由于终端向基站发送了前导码,所以所述基站还可以向所述终端发送随机接入响应消息,所述随机接入消息中包含同步上行授权消息用于指示终端可以发送缓存状态报告或上行数据;所述随机接入消息中包含的上行定时提前量信息用于指示终端发送上行信息的时间。
需要说明的是,一般的,当所述终端接收到包括有肯定确认的下行信息,说明基站成功接收到了上述实施例中所述包含有肯定确认的第一上行信息,因此,基站通常不会再发送随机接入响应消息,终端也不会接收到随机接入响应消息并应用随机接入响应消息进行上行发送;当所述终端接收到所述包括有第一上行信息的否定确认的下行信息,说明基站没有成功接收到所述第一上行信息,因此,如果基站成功接收到前导码,基站通常会发送随机接入响应消息,所述终端则根据所述随机接入响应消息执行后面的操作。
第二应用单元907,用于应用所述随机接入响应消息;
第三发送单元908,用于向所述基站发送第二上行信息,所述第二上行信息包括数据信息;
当终端接收到随机接入响应消息后,可以通过基于竞争随机接入或基于非竞争随机接入方式来建立连接,再进行同步上行,此处不做限定。
可选的,所述第二上行信息中的内容可以与第一上行信息中的内容相同,也可以不同。即终端可以使用第二上行信息来重传使用异步传输帧没有传输成功的第一上行信息,此处不做限定。
本发明实施例中,异步传输帧中还包括物理随机接入信道PRACH资源部,用于传输前导码,基站在接收到所述异步传输帧时,若不能解析所述异步传输帧的数据传输部分,还可以获取所述PRACH资源中的前导码,然后发送随机接入响应消息给所述终端,建立RRC连接,使得所述终端可以进行同步上行,提高了信息交互的稳定性。
参照图4所示,本发明实施例中基站一个实施例包括:
第二确定单元1001,用于确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
当按照需求确定好异步传输参数后,基站会先将异步传输参数信息发送给终端,终端也可以通过其他方式获取与基站相同的异步传输参数信息,如通过协议配置的方式,为了实现信令交互,异步传输参数中需要包含有物理资源信息与调制编码方式信息,为了能够实现异步传输,异步传输参数中还需要包含有物理资源帧的长度信息。
第四接收单元1002,用于接收终端根据所述异步传输参数使用异步传输帧发送的第一上行信息,所述异步传输帧包括帧头部、数据传输部以及帧尾部;
终端会根据物理资源帧长度信息配置异步传输帧,则异步传输帧的长度为终端与基站实现异步传输的所需长度。
由于终端根据必要的异步传输参数信息使用所需长度的异步传输帧向基站发送第一上行信息,基站则会接收到所述异步传输帧,并可以获取所述第一上行信。需要说明的是,当终端使用异步传输帧向基站发送第一上行信息时,使用的定时提前量为0。即,终端确定接收下行信号的定时,并以该确定的接收下行信号的定时为基准,使用异步传输帧向基站发送第一上行信息。
本发明实施例中,终端向基站所发送的异步传输帧为基站能够允许接收的 帧的长度,基站则能够接收到所述异步传输帧,基站解析所述异步传输帧的内容,获取所述第一上行信息,这样,即使终端与基站处于失步状态时,终端都能够及时进行上行数据的传输,减少了失步状态时,上行数据传输的时延以及信令的开销。
上述实施例中,描述了基站确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧长度信息,基站接收终端根据所述异步传输参数使用异步传输帧发送的第一上行信息,所述异步传输帧包括帧头部、数据传输部以及帧尾部。在实际应用中,所述第一上行信息可以根据所述终端与基站的连接状态来确定具体内容,异步传输参数信息还包括使用所述物理资源传输数据的条件信息,所述物理资源长度信息可以为物理帧的具体某个部分,所述异步传输参数还可以包括周期信息,基站还可以向终端发送下行信息,以及接收终端发送的第二上行信息,下面进行具体描述,参照图4所示,本发明实施例中基站的另一实施例包括:
第二确定单元1101,用于确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;所述异步传输参数信息还包括使用物理资源传输数据的条件信息、周期信息;所述物理资源帧长度信息包括帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所述物理资源帧的总长度信息;
当按照需求确定好异步传输参数后,基站会先将异步传输参数信息发送给终端,终端也可以通过其他方式获取与基站相同的异步传输参数信息,如通过协议配置的方式,为了实现信令交互,异步传输参数中需要包含有物理资源信息与调制编码方式信息,其中,物理资源为时频域资源,在LTE(Long Time Evolution,长期演进)系统中,可以是PRB(physical resource block,物理资源块)位置,调制编码方式可以为QPSK(Quadrature Phase Shift Keying,正交相移键控)或1/2编码等;为了能够实现异步传输,异步传输参数中还需要包含有物理资源帧的长度信息。为了提高基站接收到的上行信息的准确性,所述异步传输参数信息还可以包括使用所述物理资源传输数据的条件信息,即哪些无线承载数据可以再所述物理资源上进行数据传输;为了节省信道资源,所 述异步传输参数信息还包括周期信息,用于指示所述基站发送所述物理资源的周期,即如隔多长时间所述物理资源可以出现一次,或所述物理资源可以出现多少次;可以根据实际需求设置物理资源帧的任何一个部分的长度信息和/或物理资源帧的总长度信息,使得根据所述物理资源帧配置的异步传输帧的长度为基站所允许接收的帧的长度。其中,所述异步传输参数信息还可以包括与所述物理资源关联的标识,此处不做限定。
其中,基站发送异步数据传输参数的具体方法可以是通过RRC消息,如广播消息或者专用RRC消息半静态的配置;或者通过MAC层或物理层消息,如MAC CE或PDCCH信令动态配置;或者通过RRC消息和MAC层或物理层消息结合,其中一部分参数由RRC消息通知,另一部分消息由MAC层或物理层消息通知;或者通过协议固定一部分参数,如上述物理资源帧长度信息,其它参数通过上述方式通知给终端。可选的,所述异步传输参数可以通过一条消息发送给终端,或者多条消息发送给终端。其中,所述异步传输参数可以由一个终端单独使用,或者多个终端共享,此处不作限定。
第四接收单元1102包括第四接收模块11021,用于接收符合所述物理资源传输数据的条件的数据信息使用所述异步传输帧中数据传输部发送的第一上行信息,所述异步传输帧包括帧头部、数据传输部以及帧尾部;当与所述基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;或者,当与所述基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;或者,当与所述基站执行无线资源控制RRC连接重建时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个;
终端会根据物理资源帧长度信息配置异步传输帧,则异步传输帧的长度为终端与基站实现异步传输的所需长度。可选的,还可以预先配置多个异步传输帧格式,其中每个异步传输帧格式对应一个标识,在异步传输参数信息中的物理资源帧长度信息也可以是标识,终端由该标识确定具体使用的异步传输帧格式,以确定异步传输帧的长度。
由于终端根据必要的异步传输参数信息使用所需长度的异步传输帧向基 站发送第一上行信息,基站则会接收到所述异步传输帧,并可以获取所述第一上行信息。需要说明的是,当终端使用异步传输帧向基站发送第一上行信息时,使用的定时提前量为0。即,终端确定接收下行信号的定时,并以该确定的接收下行信号的定时为基准,使用异步传输帧向基站发送第一上行信息。将符合所述物理资源传输数据的条件的数据信息使用所述数据传输部进行传输,可以避免对其它终端在相邻时间的数据行成干扰。终端可以根据与基站处于不同的RRC连接状态,来确定第一上行信息的内容,若处于RRC连接状态,则可直接发送缓存状态报告,指示终端所需要上行的数据大小,还可以直接上行数据信息及终端标识,所述终端标识如C-RNTI(CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识),需要说明的是,当所述异步传输参数是所述终端单独使用时,则该标识可以不用携带;若处于RRC空闲状态时,则可以发送RRC连接请求消息,也可以直接发送数据信息;若处于RRC连接重建状态时,则可以发送RRC连接重建请求消息,也可以直接发送数据信息以及缓存状态报告。
第五发送单元1103,用于向所述终端发送下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;当与所述终端处于无线资源控制RRC连接状态时,所述下行信息还包括同步上行授权消息和/或所述终端的标识信息;或者,当与所述终端处于无线资源控制RRC空闲状态时,所述下行信息还包括RRC连接建立消息;或者,当与所述终端执行无线资源控制RRC连接重建时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息;
通常,上行定时调整命令中的调整值是根据基站接收所述第一上行信息的时间与接收窗的偏差值来确定的,比如当基站接收所述第一上行信息的时间比接收窗晚ΔT,如1微秒,则基站在上行定时调整命令携带的调整值为ΔT,终端接收到该调整值后,在后续数据传输过程中,使用该ΔT值。此处不作任何限定。
基站可以根据与终端的连接状态,来确定下行信息的内容,当处于RRC连接状态时,则可以发送同步上行授权消息,指示所述终端发送上行数据,还可以发送终端标识,所述终端标识如C-RNTI (CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识),需要说明的是,当所述异步传输参数是所述终端单独使用时,则该标识可以不用携带;如处于RRC空闲状态时,则可以发送RRC连接建立消息,指示终端与基站建立RRC连接,若处于RRC连接重建状态时,则可以发送RRC连接重建消息,指示所述终端与基站重建RRC连接,还可以发送同步上行授权消息,指示所述终端发送上行数据。
可选的,所述下行信息使用A-PUSCH-RNTI(Asynchronous Physical Uplink Shared Channel Radio Network Temporary Identifier异步物理上行共享信道无线网络临时标识)加掩,或者使用C-RNTI(CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识)加掩。具体的,当UE在上行信息中包含C-RNTI时,所述下行信息可以使用C-RNTI加掩,当UE在上行信息中包含A-PUSCH-RNTI时,所述下行信息可以使用A-PUSCH-RNTI加掩。
或者,所述下行信息包括第一上行信息的否定确认;当终端接收到的下行信息包括第一上行信息的否定确认后,终端发起随机接入过程,或者重新使用新的异步传输帧重传所述第一上行信息。在此不做赘述。
第五接收单元1104,用于当所述终端与基站处于无线资源控制RRC连接状态时,接收所述终端根据所述同步上行授权消息发送第二上行信息,所述第二上行信息包括数据信息;或者,当所述终端与基站处于无线资源控制RRC空闲状态时,接收所述终端根据所述RRC连接建立消息向发送第二上行信息,所述第二上行信息包括RRC连接建立完成消息;或者,当所述终端与基站执行无线资源控制RRC连接重建时,接收所述终端根据所述RRC连接重建消息向发送第二上行信息,所述第二上行信息包括RRC连接重建完成消息和/或数据信息;
终端根据与基站处于不同的连接状态,向基站发送内容不同的第二上行信息。需要说明的是,当与所述基站不是处于RRC连接状态的终端,在完成RRC连接建立后,后续的信息交互步骤参照与所述基站处于RRC连接状态的终端,此处不做赘述。
本发明实施例中,异步传输参数信息包括使用所述物理资源传输数据的条件信息,提高了基站接收到的上行信息的准确性;所述异步传输参数信息还 包括周期信息,节省了信道资源;将符合所述物理资源传输数据的条件的数据信息使用所述数据传输部向所述基站发送第一上行信息,可以避免对其它终端在相邻时间的数据行成干扰;终端可以根据与基站处于不同的RRC连接状态,来确定第一上行信息的内容,提高了信息交互的效率。
上述实施例中,描述了基站接收终端根据所述异步传输参数信息使用所述异步传输帧发送的第一上行信息,在实际应用中,所述异步传输帧还可以包括物理随机接入信道PARCH资源部,用于传输前导码,或者在发送所述异步传输帧的同时域中还发送物理随机接入信道PARCH资源,所述PARCH资源上用于传输前导码,下面进行具体描述,参照图5所示,本发明实施例中基站的另一实施例包括:
第二确定单元1201,用于确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;所述异步传输参数信息还包括使用所述异步传输帧中物理资源传输数据的条件信息、周期信息;所述物理资源帧长度信息包括帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所述物理资源帧的总长度信息;
当按照需求确定好异步传输参数后,基站会先将异步传输参数信息发送给终端,终端也可以通过其他方式获取与基站相同的异步传输参数信息,如通过协议配置的方式,为了实现信令交互,异步传输参数中需要包含有物理资源信息与调制编码方式信息,其中,物理资源为时频域资源,在LTE(Long Time Evolution,长期演进)系统中,可以是PRB(physical resource block,物理资源块)位置,调制编码方式可以为QPSK(Quadrature Phase Shift Keying,正交相移键控)或1/2编码等;为了能够实现异步传输,异步传输参数中还需要包含有物理资源帧的长度信息。为了提高基站接收到的上行信息的准确性,所述异步传输参数信息还可以包括使用所述物理资源传输数据的条件信息,即哪些无线承载数据可以再所述物理资源上进行数据传输;为了节省信道资源,所述异步传输参数信息还包括周期信息,用于指示所述基站发送所述物理资源的周期,即如隔多长时间所述物理资源可以出现一次,或所述物理资源可以出现多少次;可以根据实际需求设置物理资源帧的任何一个部分的长度信息和/或 物理资源帧的总长度信息,使得根据所述物理资源帧配置的异步传输帧的长度为基站所允许接收的帧的长度。其中,所述异步传输参数信息还可以包括与所述物理资源关联的标识,此处不做限定。
其中,基站发送异步数据传输参数的具体方法可以是通过RRC消息,如广播消息或者专用RRC消息半静态的配置;或者通过MAC层或物理层消息,如MAC CE或PDCCH信令动态配置;或者通过RRC消息和MAC层或物理层消息结合,其中一部分参数由RRC消息通知,另一部分消息由MAC层或物理层消息通知;或者通过协议固定一部分参数,如上述物理资源帧长度信息,其它参数通过上述方式通知给终端。可选的,所述异步传输参数可以通过一条消息发送给终端,或者多条消息发送给终端。其中,所述异步传输参数可以由一个终端单独使用,或者多个终端共享,此处不作限定。
通知单元1202,用于将所述异步传输参数信息通过发送无线资源控制RRC层消息、发送媒体接入控制层消息、发送物理层消息以及协议预配置四者中至少一个方式通知所述终端。
第四接收单元1203还包括第五接收模块12031,用于接收终端使用异步传输帧中PRACH资源部发送的前导码,所述异步传输帧包括帧头部、数据传输部以及帧尾部以及随机接入信道PRACH资源部;
终端是根据物理资源帧长度信息配置异步传输帧,则异步传输帧的长度为终端与基站实现异步传输的所需长度。可选的,还可以预先配置多个异步传输帧格式,其中每个异步传输帧格式对应一个标识,在异步传输参数信息中的物理资源帧长度信息也可以是标识,终端由该标识确定具体使用的异步传输帧格式,以确定异步传输帧的长度。前导码可以为终端从预留的前导码空间内获取,也可以为基站为所述终端分配,此处不做限定。
第五发送单元1204还包括第五发送模块12041,用于向所述终端发送的下行信息,所述下行信息包括第一上行信息的否定确认;
当基站没有接收到终端发送的第一上行信息,或者没有成功解析出所述第一上行信息的内容,则基站会给所述终端发送下行信息,所述下行信息包括第一上行信息的否定确认。需要说明的是第五发送单元1204为可选单元,因为当基站没有接受到所述终端发送的第一上行信息时,也可以直接发随机接入响 应消息给终端。
第六发送单元1205,用于向所述终端发送随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
当基站没有接收到终端发送的第一上行信息,但由于终端向基站发送了前导码,所以所述基站还可以向所述终端发送随机接入响应消息,所述随机接入消息中包含同步上行授权消息用于指示终端可以发送缓存状态报告或上行数据;所述随机接入消息中包含的上行定时提前量信息用于指示终端发送上行信息的时间。
需要说明的是,一般的,当所述终端接收到包括有肯定确认的下行信息,说明基站成功接收到了上述实施例中所述包含有肯定确认的第一上行信息,因此,基站通常不会再发送随机接入响应消息,终端也不会接收到随机接入响应消息并应用随机接入响应消息进行上行发送;当所述终端接收到所述包括有第一上行信息的否定确认的下行信息,说明基站没有成功接收到所述第一上行信息,因此,如果基站成功接收到前导码,基站通常会发送随机接入响应消息,所述终端则根据所述随机接入响应消息执行后面的操作。
第六接收单元1206,用于接收所述终端发送的第二上行信息,所述第二上行信息包括数据信息;
当终端接收到随机接入响应消息后,可以通过基于竞争随机接入或基于非竞争随机接入方式来建立连接,再进行同步上行,此处不做限定。
可选的,所述第二上行信息中的内容可以与第一上行信息中的内容相同,也可以不同。即终端可以使用第二上行信息来重传使用异步传输帧没有传输成功的第一上行信息,此处不做限定。
本发明实施例中,异步传输帧中还包括物理随机接入信道PRACH资源部,用于传输前导码,基站在接收到所述异步传输帧时,若不能解析所述异步传输帧的数据传输部分,还可以获取所述PRACH资源中的前导码,然后发送随机接入响应消息给所述终端,建立RRC连接,使得所述终端可以进行同步上行,提高了信息交互的稳定性。
需要说明的是,上述实施例中描述了随机接入信道PRACH资源位于所述异步传输帧中,此方法为使得前导码与所述异步传输帧频带相同,但时域不同; 在实际应用中,还可以将PRACH资源作为一个单独的帧进行发送,只需与所述异步传输帧的时域相同即可,这样,使得前导码与所述异步传输帧时域相同,但频带不同,此实施例与上述实施例类似,在此不做赘述。
图1至图3所示的实施例从功能单元的角度对接入点设备的具体结构进行了说明,以下结合图7所示的实施例从硬件角度对接入点设备的具体结构进行说明:
如图13所示,该终端包括:发射器1301、接收器1302、处理器1303和存储器1304。
本发明实施例涉及的接入点设备可以具有比图13所示出的更多或更少的部件,可以组合两个或更多个部件,或者可以具有不同的部件配置或设置,各个部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件或硬件和软件的组合实现。
所述接收器1302,用于获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
所述处理器1303,用于根据所述物理资源帧格式信息确定异步传输帧的长度,所述异步传输帧包括帧头部、数据传输部以及帧尾部;
所述发射器1301,用于根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息。
在另一个实施例中,所述接收器1302,用于获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;所述异步传输参数信息还包括使用所述异步传输帧中物理资源传输数据的条件信息、周期信息;所述物理资源帧长度信息包括帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所述物理资源帧的总长度信息;
所述处理器1303,用于根据所述物理资源帧格式信息确定异步传输帧的长度,所述异步传输帧包括帧头部、数据传输部以及帧尾部;
所述发射器1301,用于将符合所述物理资源传输数据的条件的数据信息使用所述数据传输部向所述基站发送第一上行信息;当与所述基站处于无线资 源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;或者,当与所述基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;或者,当与所述基站执行无线资源控制RRC连接重建时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个;
所述接收器1301,还用于在所述发射器1301发送所述第一上行信息之后,接收所述基站发送的下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;当与所述基站处于无线资源控制RRC连接状态时,所述下行信息还包括同步上行授权消息和/或所述终端的标识信息;或者,当与所述基站处于无线资源控制RRC空闲状态时,所述下行信息还包括RRC连接建立消息;或者,当与所述基站执行无线资源控制RRC连接重建时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息;
所述处理器1303,还用于在所述接收器1301接收到所述下行信息之后,当与所述基站处于无线资源控制RRC连接状态时,应用定时调整命令,启动定时调整定时器;
所述发射器1301,还用于在所述接收器1301接收到所述下行信息之后,根据所述同步上行授权消息向所述基站发送第二上行信息,所述第二上行信息包括数据信息;或者,当与所述基站处于无线资源控制RRC空闲状态时,根据所述RRC连接建立消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接建立完成消息;或者,当与所述基站执行无线资源控制RRC连接重建状态时,根据所述RRC连接重建消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接重建完成消息以及数据信息。
另一个实施例中,所述接收器1302,用于获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;所述异步传输参数信息还包括使用所述物理资源传输数据的条件信息、周期信息;所述物理资源帧长度信息包括帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所述物理资源帧的总长度信息;
所述处理器1303,用于根据所述物理资源帧格式信息确定异步传输帧,所述异步传输帧包括帧头部、数据传输部以及帧尾部,异步传输帧中还包括物理随机接入信道PRACH资源部;
所述接收器1302,还用于获取前导码;
所述发射器1301,用于将符合所述物理资源传输数据的条件的数据信息使用所述异步传输帧中数据传输部向所述基站发送第一上行信息;当与所述基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;或者,当与所述基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;或者,当与所述基站执行无线资源控制RRC连接重建时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个;
所述发射器1301,还用于使用所述PRACH资源部向所述基站发送所述前导码;
所述接收器1302,还用于在所述发射器1301发送所述第一上行信息和所述前导码之后,接收所述基站发送的下行信息,所述下行信息包括第一上行信息的否定确认;
所述接收器1302,还用于接收所述基站发送的随机接入响应消息,所述随机接入响应消息包括同步上行授权消息以及上行定时提前量信息;
所述处理器1303,还用于在所述接收器1302接收到所述随机接入响应消息之后,应用所述随机接入响应消息;
所述发射器1301,还用于用于向所述基站发送第二上行信息,所述第二上行信息包括数据信息。
本实施例中,发射器1301向基站所发送的异步传输帧为基站能够允许接收的帧的长度,基站则能够接收到所述异步传输帧,基站解析所述异步传输帧的内容,获取所述第一上行信息,这样,即使终端与基站处于失步状态时,终端都能够及时进行上行数据的传输,减少了失步状态时,上行数据传输的时延以及信令的开销。
图4至图6所示的实施例从功能模块的角度对基站的具体结构进行了说 明,以下结合图8所示的实施例从硬件角度对站点的具体结构进行说明:
如图14所示,该站点设备包括:接收器1401、发射器1402、处理器1403和存储器1404。
本发明实施例涉及的站点设备可以具有比图14所示出的更多或更少的部件,可以组合两个或更多个部件,或者可以具有不同的部件配置或设置,各个部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件或硬件和软件的组合实现。
所述处理器1403,用于确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
所述接收器1401,用于接收终端根据所述异步传输参数使用异步传输帧发送的第一上行信息,所述异步传输帧包括帧头部、数据传输部以及帧尾部;
另一个实施例中,所述处理器1403,用于确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;所述异步传输参数信息还包括使用所述物理资源传输数据的条件信息、周期信息;所述物理资源帧长度信息包括帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所述物理资源帧的总长度信息;
所述接收器1401,用于接收符合所述物理资源传输数据的条件的数据信息使用所述异步传输帧中数据传输部发送的第一上行信息,所述异步传输帧包括帧头部、数据传输部以及帧尾部;当与所述基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;或者,当与所述基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;或者,当与所述基站执行无线资源控制RRC连接重建时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个;
所述发射器1402,用于向所述终端发送下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;当与所述终端处于无线资源控 制RRC连接状态时,所述下行信息还包括同步上行授权消息和/或所述终端的标识信息;或者,当与所述终端处于无线资源控制RRC空闲状态时,所述下行信息还包括RRC连接建立消息;或者,当与所述终端执行无线资源控制RRC连接重建时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息;
所述接收器1401,在所述发射器1402发送所述下行信息之后,还用于当所述终端与基站处于无线资源控制RRC连接状态时,接收所述终端根据所述同步上行授权消息发送第二上行信息,所述第二上行信息包括数据信息;或者,当所述终端与基站处于无线资源控制RRC空闲状态时,接收所述终端根据所述RRC连接建立消息向发送第二上行信息,所述第二上行信息包括RRC连接建立完成消息;或者,当所述终端与基站执行无线资源控制RRC连接重建时,接收所述终端根据所述RRC连接重建消息向发送第二上行信息,所述第二上行信息包括包括RRC连接重建完成消息和/或数据信息;
另一个实施例中所述处理器1403,用于确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;所述异步传输参数信息还包括使用所述异步传输帧中物理资源传输数据的条件信息、周期信息;所述物理资源帧长度信息包括帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所述物理资源帧的总长度信息;
所述发射器1402,用于将所述异步传输参数信息通过发送无线资源控制RRC层消息、发送媒体接入控制层消息、发送物理层消息以及协议预配置四者中至少一个方式通知所述终端;
所述接收器1401,还用于接收终端使用异步传输帧中PRACH资源部发送的前导码,所述异步传输帧包括帧头部、数据传输部以及帧尾部以及随机接入信道PRACH资源部;
所述发射器1402,在所述接收器接1401接收到所述前导码之后,还用于向所述终端发送的下行信息,所述下行信息包括第一上行信息的否定确认;
所述发射器1402,在所述接收器接1401接收到所述前导码之后,还用于向所述终端发送随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
所述接收器1401,在所述发射器1402向所述终端发送随机接入响应消息之后,还用于接收所述终端发送的第二上行信息,所述第二上行信息包括数据信息。
本发明实施例中,终端向基站所发送的异步传输帧为基站能够允许接收的帧的长度,基站则能够接收到所述异步传输帧,基站解析所述异步传输帧的内容,获取所述第一上行信息,这样,即使终端与基站处于失步状态时,终端都能够及时进行上行数据的传输,减少了失步状态时,上行数据传输的时延以及信令的开销。
参照图9所示,本发明实施例中异步上行的方法的一个实施例包括:
101、获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
当按照需求确定好异步传输参数后,基站会先将异步传输参数信息发送给终端,终端也可以通过其他方式获取与基站相同的异步传输参数信息,如通过协议配置的方式,为了实现信令交互,异步传输参数中需要包含有物理资源信息与调制编码方式信息,为了能够实现异步传输,异步传输参数中还需要包含有物理资源帧的长度信息。
102、根据所述物理资源帧长度信息确定异步传输帧的长度,所述异步传输帧包括帧头部、数据传输部以及帧尾部;
终端根据物理资源帧长度信息配置异步传输帧,则异步传输帧的长度为终端与基站实现异步传输的所需长度。
103、根据所述异步传输参数信息使用所述异步传输帧向基站发送第一上行信息;
由于终端根据必要的异步传输参数信息使用所需长度的异步传输帧向基站发送第一上行信息,基站则会接收到所述异步传输帧,并可以获取所述第一上行信。需要说明的是,当终端使用异步传输帧向基站发送第一上行信息时,使用的定时提前量为0。即,终端确定接收下行信号的定时,并以该确定的接收下行信号的定时为基准,使用异步传输帧向基站发送第一上行信息。
本发明实施例中,获取与基站相同的异步传输参数信息,所述异步传输参 数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息,根据所述物理资源帧格式信息确定异步传输帧的长度,根据所述异步传输参数信息使用所述异步传输帧向基站发送第一上行信息。由于终端所获取的异步传输参数信息与基站的相同,则终端根据异步传输参数信息中异步传输帧格式信息确定的异步传输帧的长度与基站确定的异步传输帧的长度亦相同,所以即使在失步状态下,当终端根据异步传输参数信息使用异步传输帧向基站发送第一上行信息时,基站也能够接收到所述第一上行信息,从而实现数据的上行,无需先通过信令建立RRC连接才能进行数据的上行。这样,减少了失步状态时,上行数据传输的时延以及信令的开销。
上述实施例中,描述了终端接收基站发送的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧长度信息,终端配置异步传输帧,并根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息,在实际应用中,所述第一上行信息可以根据所述终端与基站的连接状态来确定具体内容,异步传输参数信息还包括使用所述物理资源传输数据的条件信息,所述物理资源长度信息可以为物理帧的具体某个部分,所述异步传输参数还可以包括周期信息,终端还可以接收基站发送的下行信息,以及向基站发送第二上行信息,下面进行具体描述,参照图10所示,本发明实施例中异步上行的方法的另一实施例包括:
201、获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;所述异步传输参数信息还包括使用物理资源传输数据的条件信息、周期信息;所述物理资源帧长度信息包括帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所述物理资源帧的总长度信息;
当按照需求确定好异步传输参数后,基站会先将异步传输参数信息发送给终端,终端也可以通过其他方式获取与基站相同的异步传输参数信息,如通过协议配置的方式,为了实现信令交互,异步传输参数中需要包含有物理资源信息与调制编码方式信息,其中,物理资源为时频域资源,在LTE(Long Time  Evolution,长期演进)系统中,可以是PRB(physical resource block,物理资源块)位置,调制编码方式可以为QPSK(Quadrature Phase Shift Keying,正交相移键控)或1/2编码等;为了能够实现异步传输,异步传输参数中还需要包含有物理资源帧的长度信息。为了提高基站接收到的上行信息的准确性,所述异步传输参数信息还可以包括使用所述物理资源传输数据的条件信息,即哪些无线承载数据可以再所述物理资源上进行数据传输;为了节省信道资源,所述异步传输参数信息还包括周期信息,用于指示所述基站发送所述物理资源的周期,即如隔多长时间所述物理资源可以出现一次,或所述物理资源可以出现多少次;可以根据实际需求设置物理资源帧的任何一个部分的长度信息和/或物理资源帧的总长度信息,使得根据所述物理资源帧配置的异步传输帧的长度为基站所允许接收的帧的长度。其中,所述异步传输参数信息还可以包括与所述物理资源关联的标识,此处不做限定。
其中,基站发送异步数据传输参数的具体方法可以是通过RRC消息,如广播消息或者专用RRC消息半静态的配置;或者通过MAC层或物理层消息,如MAC CE或PDCCH信令动态配置;或者通过RRC消息和MAC层或物理层消息结合,其中一部分参数由RRC消息通知,另一部分消息由MAC层或物理层消息通知;或者通过协议固定一部分参数,如上述物理资源帧长度信息,其它参数通过上述方式通知给终端。可选的,所述异步传输参数可以通过一条消息发送给终端,或者多条消息发送给终端。其中,所述异步传输参数可以由一个终端单独使用,或者多个终端共享,此处不作限定。
202、根据所述物理资源帧格式信息确定异步传输帧的长度,所述异步传输帧包括帧头部、数据传输部以及帧尾部;
终端根据物理资源帧长度信息配置异步传输帧,则异步传输帧的长度为终端与基站实现异步传输的所需长度。可选的,还可以预先配置多个异步传输帧格式,其中每个异步传输帧格式对应一个标识,在异步传输参数信息中的物理资源帧长度信息也可以是标识,终端由该标识确定具体使用的异步传输帧格式,以确定异步传输帧的长度。
203、将符合所述物理资源传输数据的条件的数据信息使用所述异步传输帧中数据传输部向所述基站发送第一上行信息;当与所述基站处于无线资源控 制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;或者,当与所述基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;或者,当与所述基站执行无线资源控制RRC连接重建时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个;
由于终端根据必要的异步传输参数信息使用所需长度的异步传输帧向基站发送第一上行信息,基站则会接收到所述异步传输帧,并可以获取所述第一上行信息。需要说明的是,当终端使用异步传输帧向基站发送第一上行信息时,使用的定时提前量为0。即,终端确定接收下行信号的定时,并以该确定的接收下行信号的定时为基准,使用异步传输帧向基站发送第一上行信息。将符合所述物理资源传输数据的条件的数据信息使用所述数据传输部进行传输,可以避免对其它终端在相邻时间的数据行成干扰。终端可以根据与基站处于不同的RRC连接状态,来确定第一上行信息的内容,若处于RRC连接状态,则可直接发送缓存状态报告,指示终端所需要上行的数据大小,还可以直接上行数据信息及终端标识,所述终端标识如C-RNTI(CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识),需要说明的是,当所述异步传输参数是所述终端单独使用时,则该标识可以不用携带;若处于RRC空闲状态时,则可以发送RRC连接请求消息,也可以直接发送数据信息;若处于RRC连接重建状态时,则可以发送RRC连接重建请求消息,也可以直接发送数据信息以及缓存状态报告。
204、接收所述基站发送的下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;当与所述基站处于无线资源控制RRC连接状态时,所述下行信息还包括同步上行授权消息和/或所述终端的标识信息;或者,当与所述基站处于无线资源控制RRC空闲状态时,所述下行信息还包括RRC连接建立消息;或者,当与所述基站执行无线资源控制RRC连接重建时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息;
通常,上行定时调整命令中的调整值是根据基站接收所述第一上行信息的时间与接收窗的偏差值来确定的,比如当基站接收所述第一上行信息的时间比 接收窗晚ΔT,如1微秒,则基站在上行定时调整命令携带的调整值为ΔT,终端接收到该调整值后,在后续数据传输过程中,使用该ΔT值。此处不作任何限定。
基站可以根据与终端的连接状态,来确定下行信息的内容,当处于RRC连接状态时,则可以发送同步上行授权消息,指示所述终端发送上行数据,还可以发送终端标识,所述终端标识如C-RNTI(CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识),需要说明的是,当所述异步传输参数是所述终端单独使用时,则该标识可以不用携带;如处于RRC空闲状态时,则可以发送RRC连接建立消息,指示终端与基站建立RRC连接,若处于RRC连接重建状态时,则可以发送RRC连接重建消息,指示所述终端与基站重建RRC连接,还可以发送同步上行授权消息,指示所述终端发送上行数据。
可选的,所述下行信息使用A-PUSCH-RNTI(Asynchronous Physical Uplink Shared Channel Radio Network Temporary Identifier异步物理上行共享信道无线网络临时标识)加掩,或者使用C-RNTI(CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识)加掩。具体的,当UE在上行信息中包含C-RNTI时,所述下行信息可以使用C-RNTI加掩,当UE在上行信息中包含A-PUSCH-RNTI时,所述下行信息可以使用A-PUSCH-RNTI加掩。
或者,所述下行信息包括第一上行信息的否定确认;当终端接收到的下行信息包括第一上行信息的否定确认后,终端发起随机接入过程,或者重新使用新的异步传输帧重传所述第一上行信息。在此不做赘述。
205、当与所述基站处于无线资源控制RRC连接状态时,应用定时调整命令,启动定时调整定时器,根据所述同步上行授权消息向所述基站发送第二上行信息,所述第二上行信息包括数据信息;或者,当与所述基站处于无线资源控制RRC空闲状态时,根据所述RRC连接建立消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接建立完成消息;或者,当与所述基站执行无线资源控制RRC连接重建状态时,根据所述RRC连接重建消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接重建完成消息以及数据信息;
终端根据与基站处于不同的连接状态,向基站发送内容不同的第二上行信息。需要说明的是,当与所述基站不是处于RRC连接状态的终端,在完成RRC连接建立后,后续的信息交互步骤参照与所述基站处于RRC连接状态的终端,此处不做赘述。
本发明实施例中,异步传输参数信息包括使用所述物理资源传输数据的条件信息,提高了基站接收到的上行信息的准确性;所述异步传输参数信息还包括周期信息,节省了信道资源;将符合所述物理资源传输数据的条件的数据信息使用所述数据传输部向所述基站发送第一上行信息,可以避免对其它终端在相邻时间的数据行成干扰;终端可以根据与基站处于不同的RRC连接状态,来确定第一上行信息的内容,提高了信息交互的效率。
上述实施例中,描述了终端根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息,在实际应用中,所述异步传输帧还可以包括物理随机接入信道PARCH资源部,用于传输前导码,或者在发送所述异步传输帧的同时域中还发送物理随机接入信道PARCH资源,所述PARCH资源上用于传输前导码,下面进行具体描述,参照图11所示,本发明实施例中异步上行的方法的另一实施例包括:
301、获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;所述异步传输参数信息还包括使用物理资源传输数据的条件信息、周期信息;所述物理资源帧长度信息包括帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所述物理资源帧的总长度信息;
当按照需求确定好异步传输参数后,基站会先将异步传输参数信息发送给终端,终端也可以通过其他方式获取与基站相同的异步传输参数信息,如通过协议配置的方式,为了实现信令交互,异步传输参数中需要包含有物理资源信息与调制编码方式信息,其中,物理资源为时频域资源,在LTE(Long Time Evolution,长期演进)系统中,可以是PRB(physical resource block,物理资源块)位置,调制编码方式可以为QPSK(Quadrature Phase Shift Keying,正交相移键控)或1/2编码等;为了能够实现异步传输,异步传输参数中还需要 包含有物理资源帧的长度信息。为了提高基站接收到的上行信息的准确性,所述异步传输参数信息还可以包括使用所述物理资源传输数据的条件信息,即哪些无线承载数据可以再所述物理资源上进行数据传输;为了节省信道资源,所述异步传输参数信息还包括周期信息,用于指示所述基站发送所述物理资源的周期,即如隔多长时间所述物理资源可以出现一次,或所述物理资源可以出现多少次;可以根据实际需求设置物理资源帧的任何一个部分的长度信息和/或物理资源帧的总长度信息,使得根据所述物理资源帧配置的异步传输帧的长度为基站所允许接收的帧的长度。其中,所述异步传输参数信息还可以包括与所述物理资源关联的标识,此处不做限定。
其中,基站发送异步数据传输参数的具体方法可以是通过RRC消息,如广播消息或者专用RRC消息半静态的配置;或者通过MAC层或物理层消息,如MAC CE或PDCCH信令动态配置;或者通过RRC消息和MAC层或物理层消息结合,其中一部分参数由RRC消息通知,另一部分消息由MAC层或物理层消息通知;或者通过协议固定一部分参数,如上述物理资源帧长度信息,其它参数通过上述方式通知给终端。可选的,所述异步传输参数可以通过一条消息发送给终端,或者多条消息发送给终端。其中,所述异步传输参数可以由一个终端单独使用,或者多个终端共享,此处不作限定。
302、根据所述物理资源帧格式信息确定异步传输帧的长度,所述异步传输帧包括帧头部、数据传输部以及帧尾部,异步传输帧中还包括物理随机接入信道PRACH资源部;
终端根据物理资源帧长度信息配置异步传输帧,则异步传输帧的长度为终端与基站实现异步传输的所需长度。可选的,还可以预先配置多个异步传输帧格式,其中每个异步传输帧格式对应一个标识,在异步传输参数信息中的物理资源帧长度信息也可以是标识,终端由该标识确定具体使用的异步传输帧格式,以确定异步传输帧的长度。
303、获取前导码;
前导码可以为终端从预留的前导码空间内获取,也可以为基站为所述终端分配,此处不做限定。
304、将符合所述物理资源传输数据的条件的数据信息使用所述数据传输 部向所述基站发送第一上行信息;所述第一上行信息具体包括:当与所述基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;或者,当与所述基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;或者,当与所述基站执行无线资源控制RRC连接重建时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个;
由于终端根据必要的异步传输参数信息使用所需长度的异步传输帧向基站发送第一上行信息,基站则会接收到所述异步传输帧,并可以获取所述第一上行信息。需要说明的是,当终端使用异步传输帧向基站发送第一上行信息时,使用的定时提前量为0。即,终端确定接收下行信号的定时,并以该确定的接收下行信号的定时为基准,使用异步传输帧向基站发送第一上行信息。将符合所述物理资源传输数据的条件的数据信息使用所述数据传输部进行传输,可以避免对其它终端在相邻时间的数据行成干扰。终端可以根据与基站处于不同的RRC连接状态,来确定第一上行信息的内容,若处于RRC连接状态,则可直接发送缓存状态报告,指示终端所需要上行的数据大小,还可以直接上行数据信息及终端标识,所述终端标识如C-RNTI(CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识),需要说明的是,当所述异步传输参数是所述终端单独使用时,则该标识可以不用携带;若处于RRC空闲状态时,则可以发送RRC连接请求消息,也可以直接发送数据信息;若处于RRC连接重建状态时,则可以发送RRC连接重建请求消息,也可以直接发送数据信息以及缓存状态报告。终端向所述基站发送前导码,为了防止当终端所述基站连接不成功时,还可以通过基于竞争随机接入或基于非竞争随机接入方式来建立连接。
305、接收所述基站发送的下行信息,所述下行信息包括第一上行信息的否定确认;
当基站没有接收到终端发送的第一上行信息,或者没有成功解析出所述第一上行信息的内容,则基站会给所述终端发送下行信息,所述下行信息包括第一上行信息的否定确认。需要说明的是步骤305为可选步骤,因为当基站没有 接受到所述终端发送的第一上行信息时,也可以直接发随机接入响应消息给终端。
306、接收所述基站发送的随机接入响应消息,所述随机接入响应消息包括同步上行授权消息以及上行定时提前量信息;
当基站没有接收到终端发送的第一上行信息,但由于终端向基站发送了前导码,所以所述基站还可以向所述终端发送随机接入响应消息,所述随机接入消息中包含同步上行授权消息用于指示终端可以发送缓存状态报告或上行数据;所述随机接入消息中包含的上行定时提前量信息用于指示终端发送上行信息的时间。
需要说明的是,一般的,当所述终端接收到如上述实施例中步骤204所述包含有肯定确认的下行信息,说明基站成功接收到了所述第一上行信息,因此,基站通常不会再发送随机接入响应消息,终端也不会接收到随机接入响应消息并应用随机接入响应消息进行上行发送;当所述终端接收到所述包括有第一上行信息的否定确认的下行信息,说明基站没有成功接收到所述第一上行信息,因此,如果基站成功接收到前导码,基站通常会发送随机接入响应消息,所述终端则根据所述随机接入响应消息执行后面的操作。
307、应用所述随机接入响应消息,向所述基站发送第二上行信息,所述第二上行信息包括数据信息;
当终端接收到随机接入响应消息后,可以通过基于竞争随机接入或基于非竞争随机接入方式来建立连接,再进行同步上行,此处不做限定。
可选的,所述第二上行信息中的内容可以与第一上行信息中的内容相同,也可以不同。即终端可以使用第二上行信息来重传使用异步传输帧没有传输成功的第一上行信息,此处不做限定。
本发明实施例中,异步传输帧中还包括物理随机接入信道PRACH资源部,用于传输前导码,基站在接收到所述异步传输帧时,若不能解析所述异步传输帧的数据传输部分,还可以获取所述PRACH资源中的前导码,然后发送随机接入响应消息给所述终端,建立RRC连接,使得所述终端可以进行同步上行,提高了信息交互的稳定性。
参照图12所示,本发明实施例中异步上行的方法的另一个实施例包括:
401、确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
当按照需求确定好异步传输参数后,基站会先将异步传输参数信息发送给终端,终端也可以通过其他方式获取与基站相同的异步传输参数信息,如通过协议配置的方式,为了实现信令交互,异步传输参数中需要包含有物理资源信息与调制编码方式信息,为了能够实现异步传输,异步传输参数中还需要包含有物理资源帧的长度信息。
402、接收终端根据所述异步传输参数使用异步传输帧发送的第一上行信息,所述异步传输帧包括帧头部、数据传输部以及帧尾部;
终端会根据物理资源帧长度信息配置异步传输帧,则异步传输帧的长度为终端与基站实现异步传输的所需长度。
由于终端根据必要的异步传输参数信息使用所需长度的异步传输帧向基站发送第一上行信息,基站则会接收到所述异步传输帧,并可以获取所述第一上行信。需要说明的是,当终端使用异步传输帧向基站发送第一上行信息时,使用的定时提前量为0。即,终端确定接收下行信号的定时,并以该确定的接收下行信号的定时为基准,使用异步传输帧向基站发送第一上行信息。
本发明实施例中,终端向基站所发送的异步传输帧为基站能够允许接收的帧的长度,基站则能够接收到所述异步传输帧,基站解析所述异步传输帧的内容,获取所述第一上行信息,这样,即使终端与基站处于失步状态时,终端都能够及时进行上行数据的传输,减少了失步状态时,上行数据传输的时延以及信令的开销。
上述实施例中,描述了基站确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧长度信息,基站接收终端根据所述异步传输参数使用异步传输帧发送的第一上行信息,所述异步传输帧包括帧头部、数据传输部以及帧尾部。在实际应用中,所述第一上行信息可以根据所述终端与基站的连接状态来确定具体内容,异步传输参数信息还包括使用所述物理资源传输数据的条件信息,所述物理资源长度信息可以为物理帧的具体某个部分,所述异步传输参数还可以包括周期信息,基站还可以向终 端发送下行信息,以及接收终端发送的第二上行信息,下面进行具体描述,参照图13所示,本发明实施例中异步上行的方法的另一实施例包括:
501、确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;所述异步传输参数信息还包括使用物理资源传输数据的条件信息、周期信息;所述物理资源帧长度信息包括帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所述物理资源帧的总长度信息;
当按照需求确定好异步传输参数后,基站会先将异步传输参数信息发送给终端,终端也可以通过其他方式获取与基站相同的异步传输参数信息,如通过协议配置的方式,为了实现信令交互,异步传输参数中需要包含有物理资源信息与调制编码方式信息,其中,物理资源为时频域资源,在LTE(Long Time Evolution,长期演进)系统中,可以是PRB(physical resource block,物理资源块)位置,调制编码方式可以为QPSK(Quadrature Phase Shift Keying,正交相移键控)或1/2编码等;为了能够实现异步传输,异步传输参数中还需要包含有物理资源帧的长度信息。为了提高基站接收到的上行信息的准确性,所述异步传输参数信息还可以包括使用所述物理资源传输数据的条件信息,即哪些无线承载数据可以再所述物理资源上进行数据传输;为了节省信道资源,所述异步传输参数信息还包括周期信息,用于指示所述基站发送所述物理资源的周期,即如隔多长时间所述物理资源可以出现一次,或所述物理资源可以出现多少次;可以根据实际需求设置物理资源帧的任何一个部分的长度信息和/或物理资源帧的总长度信息,使得根据所述物理资源帧配置的异步传输帧的长度为基站所允许接收的帧的长度。其中,所述异步传输参数信息还可以包括与所述物理资源关联的标识,此处不做限定。
其中,基站发送异步数据传输参数的具体方法可以是通过RRC消息,如广播消息或者专用RRC消息半静态的配置;或者通过MAC层或物理层消息,如MAC CE或PDCCH信令动态配置;或者通过RRC消息和MAC层或物理层消息结合,其中一部分参数由RRC消息通知,另一部分消息由MAC层或物理层消息通知;或者通过协议固定一部分参数,如上述物理资源帧长度信息,其它参数通过上述方式通知给终端。可选的,所述异步传输参数可以通过一条 消息发送给终端,或者多条消息发送给终端。其中,所述异步传输参数可以由一个终端单独使用,或者多个终端共享,此处不作限定。
502、接收符合所述物理资源传输数据的条件的数据信息使用异步传输帧中数据传输部发送的第一上行信息,所述异步传输帧包括帧头部、数据传输部以及帧尾部;当与所述基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;或者,当与所述基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;或者,当与所述基站执行无线资源控制RRC连接重建时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个;
终端会根据物理资源帧长度信息配置异步传输帧,则异步传输帧的长度为终端与基站实现异步传输的所需长度。可选的,还可以预先配置多个异步传输帧格式,其中每个异步传输帧格式对应一个标识,在异步传输参数信息中的物理资源帧长度信息也可以是标识,终端由该标识确定具体使用的异步传输帧格式,以确定异步传输帧的长度。
由于终端根据必要的异步传输参数信息使用所需长度的异步传输帧向基站发送第一上行信息,基站则会接收到所述异步传输帧,并可以获取所述第一上行信息。需要说明的是,当终端使用异步传输帧向基站发送第一上行信息时,使用的定时提前量为0。即,终端确定接收下行信号的定时,并以该确定的接收下行信号的定时为基准,使用异步传输帧向基站发送第一上行信息。将符合所述物理资源传输数据的条件的数据信息使用所述数据传输部进行传输,可以避免对其它终端在相邻时间的数据行成干扰。终端可以根据与基站处于不同的RRC连接状态,来确定第一上行信息的内容,若处于RRC连接状态,则可直接发送缓存状态报告,指示终端所需要上行的数据大小,还可以直接上行数据信息及终端标识,所述终端标识如C-RNTI(CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识),需要说明的是,当所述异步传输参数是所述终端单独使用时,则该标识可以不用携带;若处于RRC空闲状态时,则可以发送RRC连接请求消息,也可以直接发送数据信息;若处于RRC连接重建状态时,则可以发送RRC连接重建请求消息, 也可以直接发送数据信息以及缓存状态报告。
503、向所述终端发送下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;当与所述终端处于无线资源控制RRC连接状态时,所述下行信息还包括同步上行授权消息和/或所述终端的标识信息;或者,当与所述终端处于无线资源控制RRC空闲状态时,所述下行信息还包括RRC连接建立消息;或者,当与所述终端执行无线资源控制RRC连接重建时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息;
通常,上行定时调整命令中的调整值是根据基站接收所述第一上行信息的时间与接收窗的偏差值来确定的,比如当基站接收所述第一上行信息的时间比接收窗晚ΔT,如1微秒,则基站在上行定时调整命令携带的调整值为ΔT,终端接收到该调整值后,在后续数据传输过程中,使用该ΔT值。此处不作任何限定。
基站可以根据与终端的连接状态,来确定下行信息的内容,当处于RRC连接状态时,则可以发送同步上行授权消息,指示所述终端发送上行数据,还可以发送终端标识,所述终端标识如C-RNTI(CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识),需要说明的是,当所述异步传输参数是所述终端单独使用时,则该标识可以不用携带;如处于RRC空闲状态时,则可以发送RRC连接建立消息,指示终端与基站建立RRC连接,若处于RRC连接重建状态时,则可以发送RRC连接重建消息,指示所述终端与基站重建RRC连接,还可以发送同步上行授权消息,指示所述终端发送上行数据。
可选的,所述下行信息使用A-PUSCH-RNTI(Asynchronous Physical Uplink Shared Channel Radio Network Temporary Identifier异步物理上行共享信道无线网络临时标识)加掩,或者使用C-RNTI(CellRadioNetworkTemporaryIdentifier,小区无线网络临时标识)加掩。具体的,当UE在上行信息中包含C-RNTI时,所述下行信息可以使用C-RNTI加掩,当UE在上行信息中包含A-PUSCH-RNTI时,所述下行信息可以使用A-PUSCH-RNTI加掩。
或者,所述下行信息包括第一上行信息的否定确认;当终端接收到的下行信息包括第一上行信息的否定确认后,终端发起随机接入过程,或者重新使用 新的异步传输帧重传所述第一上行信息。在此不做赘述。
504、当所述终端与基站处于无线资源控制RRC连接状态时,接收所述终端根据所述同步上行授权消息发送第二上行信息,所述第二上行信息包括数据信息;或者,当所述终端与基站处于无线资源控制RRC空闲状态时,接收所述终端根据所述RRC连接建立消息向发送第二上行信息,所述第二上行信息包括RRC连接建立完成消息;或者,当所述终端与基站执行无线资源控制RRC连接重建时,接收所述终端根据所述RRC连接重建消息向发送第二上行信息,所述第二上行信息包括RRC连接重建完成消息和/或数据信息;
终端根据与基站处于不同的连接状态,向基站发送内容不同的第二上行信息。需要说明的是,当与所述基站不是处于RRC连接状态的终端,在完成RRC连接建立后,后续的信息交互步骤参照与所述基站处于RRC连接状态的终端,此处不做赘述。
本发明实施例中,异步传输参数信息包括使用所述物理资源传输数据的条件信息,提高了基站接收到的上行信息的准确性;所述异步传输参数信息还包括周期信息,节省了信道资源;将符合所述物理资源传输数据的条件的数据信息使用所述数据传输部向所述基站发送第一上行信息,可以避免对其它终端在相邻时间的数据行成干扰;终端可以根据与基站处于不同的RRC连接状态,来确定第一上行信息的内容,提高了信息交互的效率。
上述实施例中,描述了基站接收终端根据所述异步传输参数信息使用所述异步传输帧发送的第一上行信息,在实际应用中,所述异步传输帧还可以包括物理随机接入信道PARCH资源部,用于传输前导码,或者在发送所述异步传输帧的同时域中还发送物理随机接入信道PARCH资源,所述PARCH资源上用于传输前导码,下面进行具体描述,参照图14所示,本发明实施例中异步上行的方法的另一实施例包括:
601、确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;所述异步传输参数信息还包括使用物理资源传输数据的条件信息、周期信息;所述物理资源帧长度信息包括帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或所述物理资源帧的总长度信息;
当按照需求确定好异步传输参数后,基站会先将异步传输参数信息发送给终端,终端也可以通过其他方式获取与基站相同的异步传输参数信息,如通过协议配置的方式,为了实现信令交互,异步传输参数中需要包含有物理资源信息与调制编码方式信息,其中,物理资源为时频域资源,在LTE(Long Time Evolution,长期演进)系统中,可以是PRB(physical resource block,物理资源块)位置,调制编码方式可以为QPSK(Quadrature Phase Shift Keying,正交相移键控)或1/2编码等;为了能够实现异步传输,异步传输参数中还需要包含有物理资源帧的长度信息。为了提高基站接收到的上行信息的准确性,所述异步传输参数信息还可以包括使用所述物理资源传输数据的条件信息,即哪些无线承载数据可以再所述物理资源上进行数据传输;为了节省信道资源,所述异步传输参数信息还包括周期信息,用于指示所述基站发送所述物理资源的周期,即如隔多长时间所述物理资源可以出现一次,或所述物理资源可以出现多少次;可以根据实际需求设置物理资源帧的任何一个部分的长度信息和/或物理资源帧的总长度信息,使得根据所述物理资源帧配置的异步传输帧的长度为基站所允许接收的帧的长度。其中,所述异步传输参数信息还可以包括与所述物理资源关联的标识,此处不做限定。
其中,基站发送异步数据传输参数的具体方法可以是通过RRC消息,如广播消息或者专用RRC消息半静态的配置;或者通过MAC层或物理层消息,如MAC CE或PDCCH信令动态配置;或者通过RRC消息和MAC层或物理层消息结合,其中一部分参数由RRC消息通知,另一部分消息由MAC层或物理层消息通知;或者通过协议固定一部分参数,如上述物理资源帧长度信息,其它参数通过上述方式通知给终端。可选的,所述异步传输参数可以通过一条消息发送给终端,或者多条消息发送给终端。其中,所述异步传输参数可以由一个终端单独使用,或者多个终端共享,此处不作限定。
602、接收终端使用异步传输帧中PRACH资源部发送的前导码,所述异步传输帧包括帧头部、数据传输部以及帧尾部以及随机接入信道PRACH资源部;
终端是根据物理资源帧长度信息配置异步传输帧,则异步传输帧的长度为终端与基站实现异步传输的所需长度。可选的,还可以预先配置多个异步传输 帧格式,其中每个异步传输帧格式对应一个标识,在异步传输参数信息中的物理资源帧长度信息也可以是标识,终端由该标识确定具体使用的异步传输帧格式,以确定异步传输帧的长度。前导码可以为终端从预留的前导码空间内获取,也可以为基站为所述终端分配,此处不做限定。
603、向所述终端发送的下行信息,所述下行信息包括第一上行信息的否定确认;
当基站没有接收到终端发送的第一上行信息,或者没有成功解析出所述第一上行信息的内容,则基站会给所述终端发送下行信息,所述下行信息包括第一上行信息的否定确认。需要说明的是步骤603为可选步骤,因为当基站没有接受到所述终端发送的第一上行信息时,也可以直接发随机接入响应消息给终端。
604、向所述终端发送随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
当基站没有接收到终端发送的第一上行信息,但由于终端向基站发送了前导码,所以所述基站还可以向所述终端发送随机接入响应消息,所述随机接入消息中包含同步上行授权消息用于指示终端可以发送缓存状态报告或上行数据;所述随机接入消息中包含的上行定时提前量信息用于指示终端发送上行信息的时间。
需要说明的是,一般的,当所述终端接收到如上述实施例中所述包含有肯定确认的下行信息,说明基站成功接收到了所述第一上行信息,因此,基站通常不会再发送随机接入响应消息,终端也不会接收到随机接入响应消息并应用随机接入响应消息进行上行发送;当所述终端接收到所述包括有第一上行信息的否定确认的下行信息,说明基站没有成功接收到所述第一上行信息,因此,如果基站成功接收到前导码,基站通常会发送随机接入响应消息,所述终端则根据所述随机接入响应消息执行后面的操作。
605、接收所述终端发送的第二上行信息,所述第二上行信息包括数据信息;
当终端接收到随机接入响应消息后,可以通过基于竞争随机接入或基于非竞争随机接入方式来建立连接,再进行同步上行,此处不做限定。
可选的,所述第二上行信息中的内容可以与第一上行信息中的内容相同,也可以不同。即终端可以使用第二上行信息来重传使用异步传输帧没有传输成功的第一上行信息,此处不做限定。
本发明实施例中,异步传输帧中还包括物理随机接入信道PRACH资源部,用于传输前导码,基站在接收到所述异步传输帧时,若不能解析所述异步传输帧的数据传输部分,还可以获取所述PRACH资源中的前导码,然后发送随机接入响应消息给所述终端,建立RRC连接,使得所述终端可以进行同步上行,提高了信息交互的稳定性。
需要说明的是,上述实施例中描述了随机接入信道PRACH资源位于所述异步传输帧中,此方法为使得前导码与所述异步传输帧频带相同,但时域不同;在实际应用中,还可以将PRACH资源作为一个单独的帧进行发送,只需与所述异步传输帧的时域相同即可,这样,使得前导码与所述异步传输帧时域相同,但频带不同,此实施例与上述实施例类似,在此不做赘述。
参照图15所示,以终端为UE、基站为eNB为例,本发明实施例中异步上行的方法的一个具体应用场景实施例包括:
首先设计异步传输帧的格式包括:帧头CP,CP长度为0.5ms,数据传输部U-PUSCH,U-PUSCH的长度为1ms,帧尾Tail,Tail的长度为0.5ms;eNB将时域资源PRB位置、编码方式为QPSK以及异步传输帧的格式信息通过发送物理层消息的方式发送给UE;UE根据接收到的信息确定UE使用异步传输帧的格式、长度、时域资源以及编码方式,并设置定时提前量为0;UE将包括缓存状态报告、数据信息以及终端标识的第一上行信息发送给eNB;eNB将包括有第一上行信息的肯定确认、上行定时调整命令、同步上行授权消息以及UE的标识信息的下行信息发送给UE;UE应用定时调整命令,启动定时调整定时器,根据同步上行授权消息向eNB发送包含有数据信息的第二上行信息;
本发明实施例中,获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息,根据所述物理资源帧格式信息确定异步传输帧的长度,根据所述异步传输参数信息使用所述异步传输帧向 基站发送第一上行信息。由于终端所获取的异步传输参数信息与基站的相同,则终端根据异步传输参数信息中异步传输帧格式信息确定的异步传输帧的长度与基站确定的异步传输帧的长度亦相同,所以即使在失步状态下,当终端根据异步传输参数信息使用异步传输帧向基站发送第一上行信息时,基站也能够接收到所述第一上行信息,从而实现数据的上行,无需先通过信令建立RRC连接才能进行数据的上行。这样,减少了失步状态时,上行数据传输的时延以及信令的开销。
以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (40)

  1. 一种异步上行的方法,其特征在于,包括:
    获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
    根据所述物理资源帧格式信息确定异步传输帧的长度;
    根据所述异步传输参数信息使用所述异步传输帧向基站发送第一上行信息。
  2. 根据权利要求1所述方法,其特征在于,
    当与所述基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;
    或者,
    当与所述基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;
    或者,
    当与所述基站执行无线资源控制RRC连接重建时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个。
  3. 根据权利要求1或2所述方法,其特征在于,所述异步传输参数信息还包括使用物理资源传输数据的条件信息;
    所述根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息包括:
    将符合所述物理资源传输数据的条件的数据信息使用所述异步传输帧的数据传输部向所述基站发送第一上行信息。
  4. 根据权利要求1或2所述方法,其特征在于,所述物理资源帧长度信息包括:
    帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或物理资源帧的总长度信息。
  5. 根据权利要求1或2所述方法,其特征在于,所述异步传输参数信息 还包括:周期信息,用于指示使用物理资源的周期。
  6. 根据权利要求2所述方法,其特征在于,在根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息之后,所述方法还包括:
    接收所述基站发送的下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;
    当与所述基站处于无线资源控制RRC连接状态时,所述下行信息还包括同步上行授权消息和/或所述终端的标识信息;
    或者,
    当与所述基站处于无线资源控制RRC空闲状态时,所述下行信息还包括RRC连接建立消息;
    或者
    当与所述基站执行无线资源控制RRC连接重建时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息。
  7. 根据权利要求6所述方法,其特征在于,在接收所述基站发送的下行信息之后,所述方法还包括:
    当与所述基站处于无线资源控制RRC连接状态时,应用定时调整命令,启动定时调整定时器,根据所述同步上行授权消息向所述基站发送第二上行信息,所述第二上行信息包括数据信息;
    或者,
    当与所述基站处于无线资源控制RRC空闲状态时,根据所述RRC连接建立消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接建立完成消息;
    或者,
    当与所述基站执行无线资源控制RRC连接重建时,根据所述RRC连接重建消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接重建完成消息和/或数据信息。
  8. 根据权利要求1或2所述方法,其特征在于,所述异步传输帧中还包括物理随机接入信道PRACH资源部,在根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息之前,所述方法还包括:
    获取前导码;
    所述根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息还包括:
    使用所述PRACH资源部向所述基站发送所述前导码;
    在使用所述PRACH资源部向所述基站发送所述前导码之后,还包括:
    接收所述基站发送的随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
    应用所述随机接入响应消息,向所述基站发送第二上行信息,所述第二上行信息包括数据信息。
  9. 根据权利要求1或2所述方法,其特征在于,所述方法还包括:
    获取前导码;
    将所述前导码通过物理随机接入信道PRACH资源发送给所述基站,所述物理随机接入信道PRACH资源与所述异步传输帧在时域上对齐;
    在将所述前导码通过物理随机接入信道PRACH资源发送给所述基站之后,还包括:
    接收所述基站发送的随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
    应用所述随机接入响应消息,向所述基站发送第二上行信息,所述第二上行信息包括数据信息。
  10. 根据权利要求1至9其中任意一项所述方法,其特征在于,所述获取与基站相同的异步传输参数信息包括:
    通过接收无线资源控制RRC层消息、接收媒体接入控制层消息、接收物理层消息以及协议预配置四者中至少一个方式获取。
  11. 一种异步上行的方法,其特征在于,包括:
    确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
    接收终端根据所述异步传输参数使用异步传输帧发送的第一上行信息。
  12. 根据权利要求11所述方法,其特征在于,当所述终端与基站处于无 线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;
    或者,
    当所述终端与基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;
    或者,
    当所述终端与基站执行无线资源控制RRC连接重建状态时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个。
  13. 根据权利要求11或12所述方法,其特征在于,所述异步传输参数信息还包括使用物理资源传输数据的条件信息;
    所述接收所述终端根据所述异步传输参数使用异步传输帧发送的第一上行信息包括:
    接收符合所述物理资源传输数据的条件的数据信息使用所述异步传输帧的数据传输部发送的第一上行信息。
  14. 根据权利要求11或12所述方法,其特征在于,所述物理资源帧长度信息包括:
    帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或物理资源帧的总长度信息。
  15. 根据权利要求11或12所述方法,其特征在于,所述异步传输参数信息还包括:周期信息,用于指示使用物理资源的周期。
  16. 根据权利要求12所述方法,其特征在于,在接收所述终端根据所述异步传输参数使用异步传输帧发送的第一上行信息之后,所述方法还包括:
    向所述终端发送下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;
    当所述终端与基站处于无线资源控制RRC连接状态时,所述下行信息还包括同步上行授权消息和/或所述终端的标识信息;
    或者,
    当所述终端与基站处于无线资源控制RRC空闲状态时,所述下行信息还 包括RRC连接建立消息;
    或者,
    当所述终端与基站执行无线资源控制RRC连接重建状态时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息。
  17. 根据权利要求16所述方法,其特征在于,在向所述终端发送下行信息之后,所述方法还包括:
    当所述终端与基站处于无线资源控制RRC连接状态时,接收所述终端根据所述同步上行授权消息发送第二上行信息,所述第二上行信息包括数据信息;
    或者,
    当所述终端与基站处于无线资源控制RRC空闲状态时,接收所述终端根据所述RRC连接建立消息向发送第二上行信息,所述第二上行信息包括RRC连接建立完成消息;
    或者,
    当所述终端与基站执行无线资源控制RRC连接重建时,接收所述终端根据所述RRC连接重建消息向发送第二上行信息,所述第二上行信息包括RRC连接重建完成消息和/或数据信息。
  18. 根据权利要求11或12所述方法,其特征在于,所述异步传输帧中还包括物理随机接入信道PRACH资源部,所述接收所述终端根据所述异步传输参数使用异步传输帧发送的第一上行信息还包括:
    接收终端使用所述PRACH资源部发送的前导码;
    向所述终端发送随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
    接收所述终端发送的第二上行信息,所述第二上行信息包括数据信息。
  19. 根据权利要求11或12所述方法,其特征在于,所述方法还包括:
    接收所述终端通过随机接入信道PRACH资源发送的前导码,所述PRACH资源与所述异步传输帧在时域上对齐;
    向所述终端发送随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
    接收所述终端发送的第二上行信息,所述第二上行信息包括数据信息。
  20. 根据权利要求11至19其中任意一项所述方法,其特征在于,在确定异步传输参数信息之后,所述方法还包括:
    将所述异步传输参数信息通过发送无线资源控制RRC层消息、发送媒体接入控制层消息、发送物理层消息以及协议预配置四者中至少一个方式通知所述终端。
  21. 一种终端,其特征在于,包括:
    第一获取单元,用于获取与基站相同的异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
    第一确定单元,用于根据所述物理资源帧格式信息确定异步传输帧的长度;
    第一发送单元,用于根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息。
  22. 根据权利要求21所述终端,其特征在于,当与所述基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;
    或者,
    当与所述基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;
    或者,
    当与所述基站执行无线资源控制RRC连接重建时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个。
  23. 根据权利要求21或22所述终端,其特征在于,所述异步传输参数信息还包括使用物理资源传输数据的条件信息;
    所述第一发送单元包括:
    第一发送模块,用于将符合所述物理资源传输数据的条件的数据信息使用所述异步传输帧的数据传输部向所述基站发送第一上行信息。
  24. 根据权利要求21或22所述终端,其特征在于,所述物理资源帧长度信息包括:
    帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或物理资源帧的总长度信息。
  25. 根据权利要求21或22所述终端,其特征在于,所述异步传输参数信息还包括:周期信息,用于指示使用物理资源的周期。
  26. 根据权利要求22所述终端,其特征在于,在根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息之后,所述终端还包括:
    第一接收单元,用于接收所述基站发送的下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;
    当与所述基站处于无线资源控制RRC连接状态时,所述下行信息还包括同步上行授权消息和/或所述终端的标识信息;
    或者,
    当与所述基站处于无线资源控制RRC空闲状态时,所述下行信息还包括RRC连接建立消息;
    或者
    当与所述基站执行无线资源控制RRC连接重建时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息。
  27. 根据权利要求26所述终端,其特征在于,在接收所述基站发送的下行信息之后,所述终端还包括:
    第一应用单元,用于当与所述基站处于无线资源控制RRC连接状态时,应用定时调整命令,启动定时调整定时器;
    第二发送单元,用于当与所述基站处于无线资源控制RRC连接状态时,根据所述同步上行授权消息向所述基站发送第二上行信息,所述第二上行信息包括数据信息;
    或者,
    当与所述基站处于无线资源控制RRC空闲状态时,根据所述RRC连接建立消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接建立 完成消息;
    或者,
    当与所述基站执行无线资源控制RRC连接重建时,根据所述RRC连接重建消息向所述基站发送第二上行信息,所述第二上行信息包括RRC连接重建完成消息和/或数据信息。
  28. 根据权利要求21或22所述终端,其特征在于,所述异步传输帧中还包括物理随机接入信道PRACH资源部,在根据所述异步传输参数信息使用所述异步传输帧向所述基站发送第一上行信息之前,所述终端还包括:
    第二获取单元,用于获取前导码;
    所述第一发送单元还包括:
    第二发送模块,用于使用所述PRACH资源部向所述基站发送所述前导码;
    在使用所述PRACH资源部向所述基站发送所述前导码之后,还包括:
    第二接收单元,用于接收所述基站发送的随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
    第二应用单元,用于应用所述随机接入响应消息;
    第三发送单元,用于向所述基站发送第二上行信息,所述第二上行信息包括数据信息。
  29. 根据权利要求21或22所述终端,其特征在于,所述终端还包括:
    第三获取单元,用于获取前导码;
    所述第一发送模块还包括:
    第三发送模块,用于将所述前导码通过物理随机接入信道PRACH资源发送给所述基站,所述物理随机接入信道PRACH资源与所述异步传输帧在时域上对齐;
    在将所述前导码通过物理随机接入信道PRACH资源发送给所述基站之后,还包括:
    第三接收单元,用于接收所述基站发送的随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
    第三应用单元,用于应用所述随机接入响应消息;
    第四发送单元,用于向所述基站发送第二上行信息,所述第二上行信息包 括数据信息。
  30. 根据权利要求21至29其中任意一项所述终端,其特征在于,所述第一获取单元还包括:
    第一获取模块,用于通过接收无线资源控制RRC层消息、接收媒体接入控制层消息、接收物理层消息以及协议预配置四者中至少一个方式获取。
  31. 一种基站,其特征在于,包括:
    第二确定单元,用于确定异步传输参数信息,所述异步传输参数信息包括物理资源信息、调制编码方式信息以及物理资源帧格式信息,所述物理资源帧格式信息包括物理资源帧的长度信息;
    第四接收单元,用于接收终端根据所述异步传输参数使用异步传输帧发送的第一上行信息。
  32. 根据权利要求31所述基站,其特征在于,当所述终端与基站处于无线资源控制RRC连接状态时,所述第一上行信息包括缓存状态报告、数据信息以及终端标识三者中至少一个;
    或者,
    当所述终端与基站处于无线资源控制RRC空闲状态时,所述第一上行信息包括RRC连接请求消息、数据信息以及终端标识三者中至少一个;
    或者,
    当所述终端与基站执行无线资源控制RRC连接重建状态时,所述第一上行信息包括RRC连接重建请求消息、数据信息、缓存状态报告以及终端标识四者中至少一个。
  33. 根据权利要求31或32所述基站,其特征在于,所述异步传输参数信息还包括使用物理资源传输数据的条件信息;
    所述第四接收单元包括:
    第四接收模块,用于接收符合所述物理资源传输数据的条件的数据信息使用所述异步传输帧的数据传输部发送的第一上行信息。
  34. 根据权利要求31或32所述基站,其特征在于,所述物理资源帧长度信息包括:
    帧头部、数据传输部以及帧尾部其中至少一个的长度信息和/或物理资源 帧的总长度信息。
  35. 根据权利要求31或32所述基站,其特征在于,所述异步传输参数信息还包括:周期信息,用于指示使用所述物理资源的周期。
  36. 根据权利要求32所述基站,其特征在于,在接收所述终端根据所述异步传输参数使用异步传输帧发送的第一上行信息之后,所述基站还包括:
    第五发送单元,用于向所述终端发送下行信息,所述下行信息包括上行定时调整命令以及第一上行信息的肯定确认;
    当所述终端与基站处于无线资源控制RRC连接状态时,所述下行信息还包括同步上行授权消息和/或所述终端的标识信息;
    或者,
    当所述终端与基站处于无线资源控制RRC空闲状态时,所述下行信息还包括RRC连接建立消息;
    或者,
    当所述终端与基站执行无线资源控制RRC连接重建状态时,所述下行信息还包括同步上行授权消息和/或RRC连接重建消息。
  37. 根据权利要求36所述基站,其特征在于,在向所述终端发送下行信息之后,所述基站还包括:
    第五接收单元,用于当所述终端与基站处于无线资源控制RRC连接状态时,接收所述终端根据所述同步上行授权消息发送第二上行信息,所述第二上行信息包括数据信息;
    或者,
    当所述终端与基站处于无线资源控制RRC空闲状态时,接收所述终端根据所述RRC连接建立消息向发送第二上行信息,所述第二上行信息包括RRC连接建立完成消息;
    或者,
    当所述终端与基站执行无线资源控制RRC连接重建时,接收所述终端根据所述RRC连接重建消息向发送第二上行信息,所述第二上行信息包括RRC连接重建完成消息和/或数据信息。
  38. 根据权利要求31或32所述基站,其特征在于,所述异步传输帧中还 包括物理随机接入信道PRACH资源部,所述第四接收单元还包括:
    第五接收模块,用于接收终端使用所述PRACH资源部发送的前导码;
    第六发送单元,用于向所述终端发送随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
    第六接收单元,用于接收所述终端发送的第二上行信息,所述第二上行信息包括数据信息。
  39. 根据权利要求31或32所述基站,其特征在于,所述基站还包括:
    第七接收单元,用于接收所述终端通过随机接入信道PRACH资源发送的前导码,所述PRACH资源与所述异步传输帧在时域上对齐;
    向所述终端发送随机接入响应消息,所述随机接入响应消息包括同步上行授权信息以及上行定时提前量信息;
    接收所述终端发送的第二上行信息,所述第二上行信息包括数据信息。
  40. 根据权利要求31至39其中任意一项所述基站,其特征在于,在确定异步传输参数信息之后,所述基站还包括:
    通知单元,用于将所述异步传输参数信息通过发送无线资源控制RRC层消息、发送媒体接入控制层消息、发送物理层消息以及协议预配置四者中至少一个方式通知所述终端。
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US10491420B2 (en) 2019-11-26
EP3244674B1 (en) 2020-04-29
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