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WO2018170856A1 - 无线通信方法和设备 - Google Patents

无线通信方法和设备 Download PDF

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Publication number
WO2018170856A1
WO2018170856A1 PCT/CN2017/077933 CN2017077933W WO2018170856A1 WO 2018170856 A1 WO2018170856 A1 WO 2018170856A1 CN 2017077933 W CN2017077933 W CN 2017077933W WO 2018170856 A1 WO2018170856 A1 WO 2018170856A1
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WO
WIPO (PCT)
Prior art keywords
transmission mode
link
links
pdcp pdu
network device
Prior art date
Application number
PCT/CN2017/077933
Other languages
English (en)
French (fr)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
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 Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2017/077933 priority Critical patent/WO2018170856A1/zh
Priority to JP2019552061A priority patent/JP7048633B2/ja
Priority to EP17902353.6A priority patent/EP3592039B1/en
Priority to KR1020197029342A priority patent/KR102335480B1/ko
Priority to CN201780086865.6A priority patent/CN110313196B/zh
Publication of WO2018170856A1 publication Critical patent/WO2018170856A1/zh
Priority to US16/578,147 priority patent/US10986696B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/12Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08Upper layer protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/24Multipath
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0231Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/046Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0252Traffic management, e.g. flow control or congestion control per individual bearer or channel

Definitions

  • the present application relates to the field of communications and, more particularly, to a method and apparatus for wireless communication.
  • the Packet Data Convergence Protocol (PDCP) protocol layer sender can support the data replication function, that is, copy one PDCP Protocol Data Unit (PDU) into two copies (possibly multiple copies).
  • PDU Packet Data Convergence Protocol
  • the direct use of the replicated data transmission method in the prior art results in extremely low resource utilization.
  • the embodiments of the present application provide a wireless communication method and device, which can balance the relationship between resource utilization and transmission reliability.
  • the network device determines a transmission mode of the packet data convergence layer protocol PDCP protocol data unit PDU, where the transmission mode includes a duplicate data transmission mode or a single link transmission mode;
  • the network device sends the PDCP PDU to the terminal device.
  • the transmission mode of the corresponding PDCP PDU can be determined according to the reliability requirement of the data itself, thereby effectively balancing resource utilization and reliability of data transmission.
  • the copy data transmission mode refers to copying one PDCP PDU into multiple shares and transmitting on multiple links respectively; and the single link transmission mode means that one PDCP PDU is transmitted once on one link.
  • the network device determines a transmission manner of the PDCP PDU, including:
  • the network device determines a transmission manner of the PDCP PDU, including:
  • the network device performs channel estimation on uplink data transmitted by multiple links between the network device and the terminal device to obtain a first estimated value
  • the transmission mode of the PDCP PDU is determined by using the first estimated value of each link.
  • the determining, by using the first estimated value of each link, the PDCP PDU includes:
  • a difference between a first estimated value of each of the plurality of links is less than or equal to a first predetermined value, and a first estimated value of each of the plurality of links is in a first predetermined range
  • the difference between the first estimated values of the at least two links in the plurality of links is greater than a first predetermined value, or the first estimated value of the at least one link of the plurality of links is not at the first When the predetermined range is within, it is determined that the transmission mode is a single link transmission mode.
  • the determining, by the network device, the transmission mode of the PDCP PDU includes:
  • the network device performs channel estimation on uplink data transmitted by the multiple links between the network device and the terminal device in a first time range to obtain the first estimated value
  • the network device uses the transmission mode to send the PDCP PDU to the terminal device in a second time range.
  • the terminal device is configured for multiple links between the network device and the terminal device Feedback information, including at least one of the following:
  • the terminal device performs radio resource management RRM on each of the plurality of links Measured RRM measurement results
  • the terminal device performs a beam measurement result obtained by measuring a beam transmitted on each of the plurality of links.
  • the feedback information includes the channel state information, the RRM measurement result, the second estimate Value and the beam measurement result;
  • Determining, by the network device, the transmission mode of the PDCP PDU according to the feedback information of the terminal device for the multiple links between the network device and the terminal device including:
  • the difference between the values of the feedback information of each of the multiple links is less than or equal to a second predetermined value, and the value of the feedback information of each of the multiple links is in the second When the predetermined range is within, determining that the transmission mode is a duplicate data transmission method; or
  • the difference between the values of the feedback information of the at least two links in the multiple links is greater than the second predetermined value, or the value of the feedback information of the at least one link in the multiple links is not at When the second predetermined range is within, the transmission mode is determined to be a single link transmission mode.
  • the network device is configured according to the terminal device between the network device and the terminal device
  • the feedback information of the multiple links determines the transmission mode of the PDCP PDU, including:
  • the network device uses the transmission mode to send the PDCP PDU to the terminal device in a fourth time range.
  • the terminal device is configured for multiple links between the network device and the terminal device
  • the feedback information includes feedback of a result of data demodulation performed by the terminal device on each link, and the feedback of the demodulation result includes an acknowledgement ACK message or a negative acknowledgement NACK message;
  • Determining, by the network device, the transmission mode of the PDCP PDU according to the feedback information of the terminal device for the multiple links between the network device and the terminal device including:
  • the transmission mode of the PDCP PDU is determined according to the number of ACK messages received on each link and/or the number of NACK messages in the third time range.
  • the receiving, according to the third time range, received on each link Determining the transmission mode of the PDCP PDU by the number of ACK messages and/or the number of NACK messages, including:
  • the ratio of the ratio of the number of NACK messages received on each link to the number of NACK messages, and/or the ratio of the number of ACK messages of any two links to the number of NACK messages, according to the third time range And determining, from the plurality of links, a transmission mode of the PDCP PDU.
  • the determining, by the foregoing, the transmission manner of the PDCP PDU includes:
  • the ratio of the number of ACK messages of each link to the number of NACK messages in the plurality of links is in a third predetermined range, and the number of ACK messages and NACK of any two of the plurality of links When the difference between the ratio of the number of messages is less than or equal to the third predetermined value, it is determined that the transmission mode of the PDCP PDU is a copy data transmission mode.
  • the transmission mode of the PDCP PDU is a single-link transmission mode, where the ratio of the number of ACK messages of the first link to the number of NACK messages a ratio of the number of ACK messages higher than any one of the plurality of links to the number of NACK messages, and the ratio of the number of ACK messages of the first link to the number of NACK messages and multiple chains
  • the difference between the number of ACK messages of any other link in the path and the number of NACK messages is greater than or equal to a fourth predetermined value.
  • the network device sends the PDCP to the terminal device according to a transmission manner of the PDCP PDU PDU, including:
  • the network device uses the first link to send the PDCP PDU to the terminal device.
  • the determining, by the foregoing, the transmission manner of the PDCP PDU includes:
  • the number of ACK messages per link and the number of NACK messages in the plurality of links Determining the PDCP PDU when the ratio is greater than or equal to a fifth predetermined value, and the difference between the number of ACK messages of any two of the plurality of links and the number of NACK messages is less than or equal to a sixth predetermined value
  • the transmission mode is a single link transmission mode.
  • the network device sends, according to the transmission mode of the PDCP PDU, the network device to the terminal device
  • the PDCP PDU includes:
  • the network device uses the second link of the plurality of links to the terminal device, where the second link is the number of ACK messages in the multiple links The link with the highest ratio of the number of NACK messages.
  • the determining, by the foregoing, the transmission manner of the PDCP PDU includes:
  • the network device sends, according to the transmission mode of the PDCP PDU, the network device to the terminal device
  • the PDCP PDU includes:
  • the multiple links are in one-to-one correspondence with multiple carriers, in the multiple links Each link transmits signals through a corresponding carrier.
  • a network device which may comprise means for implementing the method of the first aspect described above or any of its possible implementations.
  • a computer readable medium storing program code for execution by a terminal device, the program code comprising for performing the first aspect or various implementations thereof The instructions of the method in the way.
  • FIG. 1 is a schematic diagram of a wireless communication system in accordance with an embodiment of the present application.
  • FIG. 2 shows a protocol architecture diagram of duplicate data transmission in a carrier aggregation scenario.
  • FIG. 3 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 4 is a schematic block diagram of a network device in accordance with an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a system chip in accordance with an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a network device according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UPD Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied.
  • the wireless communication system 100 can include a network device 110.
  • Network device 100 can be a device that communicates with a terminal device.
  • the internet Device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area.
  • the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • the network device can be a relay station, an access point, an in-vehicle device, a wearable device, A network side device in a future 5G network or a network device in a publicly available Public Land Mobile Network (PLMN) in the future.
  • PLMN Public Land Mobile Network
  • D2D device to device communication
  • D2D device to device
  • the 5G system or network may also be referred to as a New Radio (NR) system or network.
  • NR New Radio
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device. The application embodiment does not limit this.
  • the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like.
  • network entities such as a network controller, a mobility management entity, and the like.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and A and B exist separately. There are three cases of B.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • MAC Media Access Control
  • HARQ Hybrid Automatic Repeat ReQuest
  • the entity transmits on the different carriers. For example, the replica data carried in the logical channel 1 is transmitted on the physical carrier 1 through the HARQ entity 1, and the replica data carried in the logical channel 2 is transmitted on the physical carrier 2 through the HARQ entity 2.
  • the PDCP layer replica data transmission can effectively improve the reliability of data transmission by using the diversity gain, the obvious disadvantage is that the method leads to extremely low system resource utilization, that is, different resources are required to transmit the same content.
  • FIG. 3 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application.
  • the method 300 can optionally be applied to the system shown in Figure 1, but is not limited thereto.
  • the method 200 includes the following.
  • the network device determines a transmission mode of the PDCP PDU, where the transmission mode includes a duplicate data transmission mode or a single link transmission mode.
  • the network device sends the PDCP PDU to the terminal device.
  • the network device can flexibly determine the transmission mode of the PDCP PDU, that is, whether the data transmission mode or the single link transmission mode is adopted.
  • the copy data transmission mode may be that the PDCP PDU is copied into multiple parts and transmitted in multiple links, that is, the RLC layer in FIG. 2; the single-link transmission mode may be that one PDCP PDU is transmitted by using one link.
  • the network device can determine the transmission mode to transmit the PDCP PDU by using a certain transmission mode.
  • the network device determines that the transmission mode is a single-link transmission mode, the network device uses a link to transmit the PDCP PDU; if the network device determines that the transmission mode is replication In the data transmission mode, the network device can select multiple links to transmit the copied data of the PDCP PDU.
  • the method for transmitting data in the embodiment of the present application is advantageous for balancing resource utilization and reliability of data transmission.
  • the network device may determine, according to the network device, the PDCP PDU according to the feedback information of the terminal device for multiple links between the network device and the terminal device.
  • the transmission mode may also perform channel estimation on uplink data transmitted by multiple links between the network device and the terminal device to determine a transmission mode of the PDCP PDU.
  • multiple links herein may be for all links between the network device and the terminal device, or may be a partial link between the network device and the terminal device.
  • the multiple links are in one-to-one correspondence with multiple carriers, and each of the multiple links performs signal transmission by using a corresponding carrier.
  • the multiple links mentioned in the implementation of the present application may respectively correspond to multiple physical layer carriers in the case of carrier aggregation, or may be the same frequency or different frequency corresponding to two base stations in a dual connectivity scenario.
  • Physical layer carrier may respectively correspond to multiple physical layer carriers in the case of carrier aggregation, or may be the same frequency or different frequency corresponding to two base stations in a dual connectivity scenario.
  • the predetermined range or the predetermined value mentioned in the embodiment of the present application may be related to the service to which the PDCP PDU belongs, and specifically, may be related to the reliability requirement of the associated service, and specifically may be related to the service to which the PDCP PDU belongs.
  • the quality of service (QoS) level is related.
  • a difference between a first estimated value of each of the plurality of links is less than or equal to a first predetermined value, and a first estimated value of each of the plurality of links is at Within the first predetermined range, Determining that the transmission mode is a duplicate data transmission method; or, the difference between the first estimation values of the at least two links in the multiple links is greater than a first predetermined value, or exists in the multiple links When the first estimated value of the at least one link is not within the first predetermined range, determining that the transmission mode is a single link transmission mode.
  • the network device performs channel estimation on uplink data that is transmitted by the multiple links between the network device and the terminal device in a first time range to obtain the first estimated value; Determining the transmission mode by using the first estimated value obtained in the first time range; and using the transmission mode, the network device sends the PDCP PDU to the terminal device in a second time range.
  • the mode A can be used in a Time Division Duplex (TDD) mode.
  • TDD Time Division Duplex
  • the network device determines a transmission manner of the PDCP PDU according to feedback information of the terminal device for multiple links between the network device and the terminal device.
  • the feedback information of the terminal device for multiple links between the network device and the terminal device includes at least one of the following:
  • the terminal device Transmitting, by the terminal device, feedback of a result of data demodulation on each of the plurality of links, specifically, the terminal device is independent on each link of the multiple links
  • the data is demodulated, and the demodulation result is reported, mainly a HARQ positive acknowledgement (ACK) message and a negative acknowledgement (Non-Acknowledgement NACK) message;
  • the terminal device performs RRM measurement results of Radio Resource Management (RRM) measurement on each of the multiple links, for example, reference signal receiving power of layer 3 for mobility management (Reference Signal Receiving Power, RSRP) or Reference Signal Receiving Quality (RSRQ) measurement, wherein, for high-level RRM measurement, the terminal device can perform measurement based on configuration information of the network device, that is, when the network device configures the terminal device measuring;
  • RRM Radio Resource Management
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • the terminal device performs a beam measurement result obtained by measuring a beam transmitted on each of the plurality of links.
  • the feedback information includes the channel state information, the RRM measurement result, the second estimated value, and the beam measurement result; feedback information of each two links in the multiple links
  • the value of the value of the feedback is less than or equal to the second predetermined value, and the value of the feedback information of each of the plurality of links is within a second predetermined range, and the transmission mode is determined to be a copy data transmission method; or
  • the difference between the values of the feedback information of the at least two links in the multiple links is greater than the second predetermined value, or the value of the feedback information of the at least one link in the multiple links is not When it is within the second predetermined range, it is determined that the transmission mode is a single link transmission mode.
  • the terminal device performs channel measurement on the multiple links, generates CQI, and reports to the network device through the uplink control channel, if the CQI corresponding to the multiple links is equal, and both are in a certain reservation.
  • the network device decides to trigger high-level replication data transmission to improve data transmission reliability.
  • the network device may also calculate the CQI size corresponding to each link in a time interval, and according to the statistics of the CQI of each link, for example, the average statistics of the CQI in a certain time interval, if the CQI is within a predetermined range, the network device triggers High-level replication data transmission;
  • the transmission mode, in the fourth time range, the network device sends the PDCP PDU to the terminal device.
  • the feedback information of the terminal device for multiple links between the network device and the terminal device includes feedback of a result of data demodulation performed by the terminal device on each link.
  • the feedback of the demodulation result includes an acknowledgement ACK message or a negative acknowledgement NACK message; determining, according to the number of ACK messages received on each link and/or the number of NACK messages in the third time range The transmission mode of the PDCP PDU.
  • the ratio of the number of NACK messages received by the ACK message on each link, and/or the number of ACK messages of any two links and the number of NACK messages The difference between the ratios, from the plurality of links, determining the transmission mode of the PDCP PDU.
  • the terminal device performs HARQ feedback on the demodulated data on the link, and the network device separately counts the number of received ACK messages and the number of NACK messages on each link. Determine the next window to send PDCP PDU according to the statistics of a certain time window (such as 100ms) The way of transmission.
  • the determined transmission mode may be used for sending a PDCP PDU with a certain attribute in a next time range, for example, for transmitting a PDCP PDU with consistent reliability requirements.
  • a ratio of the number of ACK messages of each link in the plurality of links to the number of NACK messages is in a third predetermined range, and any two of the multiple links
  • the difference between the number of ACK messages and the number of NACK messages is less than or equal to a third predetermined value, it is determined that the transmission mode of the PDCP PDU is a copy data transmission mode.
  • the network device decides to perform high-level data replication transmission in the next statistical window.
  • determining that the PDCP PDU is transmitted in a single-link transmission mode where the number of ACK messages of the first link is The ratio of the number of NACK messages to the number of ACK messages of any one of the plurality of links is greater than the number of NACK messages, and the number of ACK messages of the first link and the number of NACK messages The difference between the ratio of the number and the ratio of the number of ACK messages of any one of the plurality of links to the number of NACK messages is greater than or equal to a fourth predetermined value.
  • the network device sends the PDCP PDU to the terminal device by using the first link.
  • the ratio of the number of ACK messages and the number of NACK messages of one link in a plurality of links is higher than the ratio of the number of ACKs of the other link to the number of NACKs, and the ratio difference is greater than a certain threshold, such as the first link.
  • a certain threshold such as the first link.
  • Number of ACK messages on / / number of ACK messages + number of NACK messages 90%
  • number of ACK messages on the second link / (number of ACK messages + number of NACK messages) 50%
  • ratio difference is 40%
  • there is more than one threshold, such as 20% the network device decides to perform single link transmission on the first link in the next statistical window.
  • a ratio of the number of ACK messages of each link in the plurality of links to the number of NACK messages is greater than or equal to a fifth predetermined value, and any two of the multiple links
  • a sixth predetermined value it is determined that the transmission mode of the PDCP PDU is a single link transmission mode.
  • the network device sends the PDCP PDU to the terminal device, where the second link is an ACK in the multiple links The link with the highest ratio of the number of messages to the number of NACK messages.
  • the network device selects the link with the highest ratio for single link data transmission.
  • Other links can be used to transmit data that is different from the currently selected link.
  • the network device may select a high-level replication data transmission mode or a single chain. Road data.
  • the network device may adopt single-link transmission or transmission of duplicate data.
  • a PDCP PDU occurs in a manner, wherein the ratio of the number of ACK messages of each link to the number of NACK messages is less than a seventh predetermined value, indicating that the channel quality of each link is poor, and the selected link may be selected.
  • Link adaptation is performed, that is, the PDCP PDU is transmitted on the selected link by using a lower modulation and coding scheme.
  • the manner of determining the transmission mode of the PDCP PDU based on the number of ACKs and the number of NACKs is also applicable to other feedback information.
  • the manner of determining the transmission mode of the PDCP PDU based on the number of ACKs and the number of NACKs is also applicable to other feedback information.
  • details are not described herein again.
  • the terminal device when the terminal device selects a part of the link to transmit the PDCP PDU, other links may be used to transmit another PDCP PDU.
  • a link for transmitting the PDCP PDU is selected from multiple links, and if it is a manner of copying data transmission, all or part of multiple links may be selected from multiple to perform PDCP PDUs. Transmission, if it is a single-link transmission mode, one of the multiple links can be selected for PDCP PDU transmission.
  • the link for transmitting the PDCP PDU may be selected from the multiple links according to the link quality of the multiple links.
  • At least one of the first estimated value, the second estimated value and the RRM measurement result, the channel state information, the demodulated result of the data, and the beam measurement result may be used according to the foregoing link of each link.
  • the processing unit 310 is configured to: determine a transmission mode of the PDCP PDU, where the transmission mode includes a duplicate data transmission mode or a single link transmission mode;
  • the transceiver unit 320 is configured to: send the PDCP PDU to the terminal device according to a transmission manner of the PDCP PDU.
  • processing unit 310 is further configured to:
  • processing unit 310 is further configured to:
  • the transmission mode of the PDCP PDU is determined by using the first estimated value of each link.
  • processing unit 310 is further configured to:
  • a difference between a first estimated value of each of the plurality of links is less than or equal to a first predetermined value, and a first estimated value of each of the plurality of links is in a first predetermined range Determining that the transmission mode is a replication data transmission network device; or
  • the difference between the first estimated values of the at least two links in the plurality of links is greater than a first predetermined value, or the first estimated value of the at least one link of the plurality of links is not at the first When the predetermined range is within, it is determined that the transmission mode is a single link transmission mode.
  • the PDCP PDU is sent to the terminal device in a second time range.
  • the feedback information of the terminal device for multiple links between the network device and the terminal device includes at least one of the following:
  • the terminal device performs a beam measurement result obtained by measuring a beam transmitted on each of the plurality of links.
  • the feedback information includes the channel state information, the RRM measurement result, the second estimated value, and the beam measurement result;
  • the processing unit 310 is further configured to:
  • the difference between the values of the feedback information of each of the multiple links is less than or equal to a second predetermined value, and the value of the feedback information of each of the multiple links is in the second Determining that the transmission mode is a duplicate data transmission network device within a predetermined range; or
  • the difference between the values of the feedback information of the at least two links in the multiple links is greater than the second predetermined value, or the value of the feedback information of the at least one link in the multiple links is not at When the second predetermined range is within, the transmission mode is determined to be a single link transmission mode.
  • processing unit 310 is further configured to:
  • the PDCP PDU is sent to the terminal device in a fourth time range.
  • the terminal device is configured to multiple chains between the network device and the terminal device
  • the feedback information of the path includes feedback of the result of data demodulation performed by the terminal device on each link, and the feedback of the demodulation result includes an acknowledgement ACK message or a negative acknowledgement NACK message;
  • the processing unit 310 is further configured to:
  • the transmission mode of the PDCP PDU is determined according to the number of ACK messages received on each link and/or the number of NACK messages in the third time range.
  • processing unit 310 is further configured to:
  • the ratio of the ratio of the number of NACK messages received on each link to the number of NACK messages, and/or the ratio of the number of ACK messages of any two links to the number of NACK messages, according to the third time range And determining, from the plurality of links, a transmission mode of the PDCP PDU.
  • processing unit 310 is further configured to:
  • the ratio of the number of ACK messages of each link to the number of NACK messages in the plurality of links is in a third predetermined range, and the number of ACK messages and NACK of any two of the plurality of links When the difference between the ratio of the number of messages is less than or equal to the third predetermined value, it is determined that the transmission mode of the PDCP PDU is a copy data transmission mode.
  • processing unit 310 is further configured to:
  • the transmission mode of the PDCP PDU is a single-link transmission mode, where the ratio of the number of ACK messages of the first link to the number of NACK messages a ratio of the number of ACK messages higher than any one of the plurality of links to the number of NACK messages, and the ratio of the number of ACK messages of the first link to the number of NACK messages and multiple chains
  • the difference between the number of ACK messages of any other link in the path and the number of NACK messages is greater than or equal to a fourth predetermined value.
  • the transceiver unit 320 is further configured to:
  • processing unit 310 is further configured to:
  • a ratio of the number of ACK messages of each link in the plurality of links to the number of NACK messages is greater than or equal to a fifth predetermined value, and the number of ACK messages of any two of the plurality of links is When the difference between the ratio of the number of NACK messages is less than or equal to the sixth predetermined value, it is determined that the transmission mode of the PDCP PDU is a single-link transmission mode.
  • the transceiver unit 320 is further configured to:
  • processing unit 310 is further configured to:
  • the transceiver unit 320 is further configured to:
  • the multiple links are in one-to-one correspondence with multiple carriers, and each of the multiple links performs signal transmission by using a corresponding carrier.
  • the network device 300 may correspond to the network device in the method 200, and the corresponding functions of the network device in the method 200 may be implemented. For brevity, no further details are provided herein.
  • FIG. 5 is a schematic structural diagram of a system chip 400 according to an embodiment of the present application.
  • the system chip 400 of FIG. 5 includes an input interface 401, an output interface 402, the processor 403, and a memory 404 that can be connected by an internal communication connection line.
  • the processor 403 is configured to execute code in the memory 704.
  • the processor 403 when the code is executed, the processor 403 implements the method performed by the network device in the method 200 shown in FIG. For the sake of brevity, it will not be repeated here.
  • FIG. 6 is a schematic block diagram of a communication device 500 in accordance with an embodiment of the present application.
  • the communication device 600 includes a processor 610 and a memory 620.
  • the memory 620 can store program code, and the processor 610 can execute the program code stored in the memory 620.
  • the communication device 600 can include a transceiver 630 that can control the transceiver 630 to communicate externally.
  • the processor 610 can call the program code stored in the memory 620 to perform the corresponding operations of the network device in the method 200 of FIG. 2, and details are not described herein for brevity.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本申请实施例提供一种无线通信方法和设备,能够平衡资源利用率和传输可靠性之间的关系。该方法包括:网络设备确定PDCP PDU的传输方式,所述传输方式包括复制数据传输方式或单链路传输方式;根据所述PDCP PDU的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU。

Description

无线通信方法和设备 技术领域
本申请涉及通信领域,并且更具体地,涉及一种无线通信方法和设备。
背景技术
在载波聚合场景下,分组数据汇聚层协议(Packet Data Convergence Protocol,PDCP)协议层发端可以支持数据复制功能,即将一个PDCP协议数据单元(Protocol Data Unit,PDU)复制成两份(可能多份),以此来提高数据传输的可靠性。现有技术中直接采用复制数据传输方式导致了极低的资源利用率。
发明内容
本申请实施例提供一种无线通信方法和设备,能够平衡资源利用率和传输可靠性之间的关系。
第一方面,提供了一种无线通信方法,包括:
网络设备确定分组数据汇聚层协议PDCP协议数据单元PDU的传输方式,所述传输方式包括复制数据传输方式或单链路传输方式;
根据所述PDCP PDU的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU。
通过动态切换数据的传输方式,能够有效地平衡资源利用率和数据传输的可靠性。
具体地,可以根据数据本身对可靠性的要求,确定对应的PDCP PDU的传输方式,从而能够有效地平衡资源利用率和数据传输的可靠性。
其中,复制数据传输方式是指将一个PDCP PDU复制成多份,分别在多个链路上进行传输;而单链路传输方式是指一个PDCP PDU采用一个链路传输一次。
结合第一方面,在第一方面的一种可能的实现方式中,所述网络设备确定PDCP PDU的传输方式,包括:
所述网络设备根据所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述网络设备确定PDCP PDU的传输方式,包括:
所述网络设备对所述网络设备与所述终端设备之间的多个链路传输的上行数据进行信道估计,以得到第一估计值;
利用所述每个链路的所述第一估计值,确定所述PDCP PDU的传输方式。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述利用所述每个链路的所述第一估计值,确定所述PDCP PDU的传输方式,包括:
在所述多个链路中每两个链路的第一估计值的差值小于等于第一预定值,且所述多个链路中每个链路的第一估计值处于第一预定范围内时,确定所述传输方式为复制数据传输方法;或,
在所述多个链路中存在至少两个链路的第一估计值的差值大于第一预定值,或所述多个链路中存在至少一个链路的第一估计值不处于第一预定范围内时,确定所述传输方式为单链路传输方式。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述网络设备确定PDCP PDU的传输方式,包括,包括:
所述网络设备对所述网络设备与所述终端设备之间的多个链路在第一时间范围内传输的上行数据进行信道估计,以得到所述第一估计值;
利用所述第一时间范围内得到的所述第一估计值,确定所述传输方式;
所述根据所述PDCP PDU的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU,包括:
利用所述传输方式,在第二时间范围内,所述网络设备向所述终端设备发送所述PDCP PDU。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,包括以下中的至少一种:
所述终端设备在所述多个链路中的每个链路上,获取的信道状态信息;
所述终端设备在所述多个链路中的每个链路上,进行数据解调的结果的反馈;
所述终端设备在所述多个链路中的每个链路上进行无线资源管理RRM 测量的RRM测量结果;
所述终端设备对所述多个链路中的每个链路上传输的控制信令进行信道估计得到的第二估计值;
所述终端设备对所述多个链路中的每个链路上发送的波束进行测量获取的波束测量结果。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述反馈信息包括所述信道状态信息,所述RRM测量结果、所述第二估计值和所述波束测量结果;
所述网络设备根据所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式,包括:
在所述多个链路中每两个链路的反馈信息的取值的差值小于等于第二预定值,且所述多个链路中每个链路的反馈信息的取值处于第二预定范围内时,确定所述传输方式为复制数据传输方法;或,
在所述多个链路中存在至少两个链路的反馈信息的取值的差值大于第二预定值,或所述多个链路中存在至少一个链路的反馈信息的取值不处于第二预定范围内时,确定所述传输方式为单链路传输方式。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述网络设备根据所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式,包括:
根据第三时间范围内接收到的所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式;
所述根据所述PDCP PDU的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU,包括:
利用所述传输方式,在第四时间范围内,所述网络设备向所述终端设备发送所述PDCP PDU。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息包括所述终端设备在每个链路上,进行数据解调的结果的反馈,所述解调结果的反馈包括确认ACK消息或否定确认NACK消息;
所述网络设备根据所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式,包括:
根据在所述第三时间范围内,所述每个链路上接收到的ACK消息的数量和/或NACK消息的数量,确定所述PDCP PDU的传输方式。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述根据在所述第三时间范围内,所述每个链路上接收到的ACK消息的数量和/或NACK消息的数量,确定所述PDCP PDU的传输方式,包括:
根据所述第三时间范围内,每个链路上接收到的ACK消息的与NACK消息的数量的比值,和/或任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值,从所述多个链路中,确定所述PDCP PDU的传输方式。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述确定所述PDCP PDU的传输方式,包括:
在所述多个链路中每个链路的ACK消息的数量与NACK消息的数量的比值处于第三预定范围,且所述多个链路中任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值小于等于第三预定值时,确定所述PDCP PDU的传输方式为复制数据传输方式。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述确定所述PDCP PDU的传输方式,包括:
在所述多个链路中存在第一链路时,确定所述PDCP PDU的传输方式为单链路传输方式,其中,所述第一链路的ACK消息的数量与NACK消息的数量的比值高于所述多个链路中其它任一个链路的ACK消息的数量与NACK消息的数量的比值,且所述第一链路的ACK消息的数量与NACK消息的数量的比值与多个链路中其它任一个链路的ACK消息的数量与NACK消息的数量的比值的差值大于等于第四预定值。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,根据所述PDCP PDU的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU,包括:
利用所述第一链路,所述网络设备向所述终端设备发送所述PDCP PDU。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述确定所述PDCP PDU的传输方式,包括:
在所述多个链路中每个链路的ACK消息的数量与NACK消息的数量的 比值大于等于第五预定值,且所述多个链路中任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值小于等于第六预定值时,确定所述PDCP PDU的传输方式为单链路传输方式。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述根据所述PDCP PDU的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU,包括:
利用所述多个链路中的第二链路,所述网络设备向所述终端设备发送所述PDCP PDU,其中,所述第二链路是所述多个链路中ACK消息的数量与NACK消息的数量的比值最高的链路。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述确定所述PDCP PDU的传输方式,包括:
在所述多个链路中的每个链路的ACK消息的数量与NACK消息的数量的比值小于等于第七预定值时,确定所述PDCP PDU的传输方式为单链路传输方式或复制数据传输方式。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述根据所述PDCP PDU的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU,包括:
根据所述PDCP PDU的传输方式,从所述多个链路中选择至少一个链路;
对所述至少一个链路进行链路自适应;
利用链路自适应后的所述至少一个链路,发送所述PDCP PDU。
结合第一方面或其上述任一种可能的实现方式,在第一方面的一种可能的实现方式中,所述多个链路与多个载波一一对应,所述多个链路中的每个链路通过对应的载波进行信号传输。
第二方面,提供了一种网络设备,该网络设备可以包括用于实现上述第一方面或其任一种可能的实现方式中的方法的单元。
第三方面,提供了一种网络设备,该网络设备可以包括存储器和处理器,该存储器存储指令,该存储器用于调用存储器中存储的指令执行第一方面或其任一项可选实现方式中的方法。
第四方面,提供一种计算机可读介质,所述计算机可读介质存储用于终端设备执行的程序代码,所述程序代码包括用于执行第一方面或其各种实现 方式中的方法的指令。
附图说明
为了更清楚地说明本申请实施例的技术方案,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申请的一些实施例,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是根据本申请实施例的无线通信系统的示意图。
图2示出了载波聚合场景下的复制数据传输的协议架构图。
图3时根据本申请实施例的无线通信方法的示意性流程图。
图4是根据本申请实施例的网络设备的示意性框图。
图5是根据本申请实施例的系统芯片的示意性框图。
图6是根据本申请实施例的网络设备的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,简称为“GSM”)系统、码分多址(Code Division Multiple Access,简称为“CDMA”)系统、宽带码分多址(Wideband Code Division Multiple Access,简称为“WCDMA”)系统、通用分组无线业务(General Packet Radio Service,简称为“GPRS”)、长期演进(Long Term Evolution,简称为“LTE”)系统、LTE频分双工(Frequency Division Duplex,简称为“FDD”)系统、LTE时分双工(Time Division Duplex,简称为“TDD”)、通用移动通信系统(Universal Mobile Telecommunication System,简称为“UMTS”)、全球互联微波接入(Worldwide Interoperability for Microwave Access,简称为“WiMAX”)通信系统或未来的5G系统等。
图1示出了本申请实施例应用的无线通信系统100。该无线通信系统100可以包括网络设备110。网络设备100可以是与终端设备通信的设备。网络 设备100可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域内的终端设备(例如UE)进行通信。可选地,该网络设备100可以是GSM系统或CDMA系统中的基站(Base Transceiver Station,BTS),也可以是WCDMA系统中的基站(NodeB,NB),还可以是LTE系统中的演进型基站(Evolutional Node B,eNB或eNodeB),或者是云无线接入网络(Cloud Radio Access Network,CRAN)中的无线控制器,或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备、未来5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的网络设备等。
该无线通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。终端设备120可以是移动的或固定的。可选地,终端设备120可以指接入终端、用户设备(User Equipment,UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、未来5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地,终端设备120之间可以进行终端直连(Device to Device,D2D)通信。
可选地,5G系统或网络还可以称为新无线(New Radio,NR)系统或网络。
图1示例性地示出了一个网络设备和两个终端设备,可选地,该无线通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。
可选地,该无线通信系统100还可以包括网络控制器、移动管理实体等其他网络实体,本申请实施例对此不作限定。
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独 存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
为了便于理解,下面将结合图2简单介绍如何将复制数据调度在不同的物理载波上。如图2所示,PDCP层具有分裂承载复制功能,将PDCP SDU1的数据进程复制封装成PDCP PDU1和PDCP PDU2,PDCP PDU1和PDCP PDU2具有相同的内容,即承载的数据payload和包头header都相同。分别把PDCP PDU1和PDCP PDU2分别映射到不同的无线链路控制(Radio Link Control,RLC)实体,RLC实体把PDCP PDU1和PDCP PDU2放到不同的逻辑信道(逻辑信道1和逻辑信道2上),对于媒体接入控制(Media Access Control,MAC)来讲,在获知哪些逻辑信道传输同一个PDCP PDU的复制数据之后,将这些复制数据通过不同的混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)实体在不同的载波上传输,例如,将逻辑信道1中承载的复制数据通过HARQ实体1在物理载波1上传输,将逻辑信道2中承载的复制数据通过HARQ实体2在物理载波2上传输。
尽管PDCP层复制数据传输能够利用分集增益有效提高数据传输的可靠性,但明显的缺点该方法导致了极低的系统资源利用率是,即需要用不同的资源来传输相同的内容。
图3是根据本申请实施例的无线通信方法300的示意性流程图。该方法300可选地可以应用于图1所示的系统,但并不限于此。如图2所示,该方法200包括以下内容。
在210中,网络设备确定PDCP PDU的传输方式,所述传输方式包括复制数据传输方式或单链路传输方式。
在220中,根据所述PDCP PDU的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU。
具体地,网络设备可以灵活确定PDCP PDU的传输方式,即具体是采用复制数据传输方式还是单链路传输方式。其中,复制数据传输方式可以是上述将一个PDCP PDU复制成多份,分别在多个链路即图2中的RLC层进行传输;单链路传输方式可以是指一个PDCP PDU采用一个链路传输一次,网络设备在确定是哪种传输方式之后,可以采用确定的传输方式去传输该PDCP PDU。例如,若网络设备确定出传输方式是单链路传输方式,网络设备就采用一个链路去传输该PDCP PDU;若网络设备确定出传输方式是复制 数据传输方式,网络设备就可以选择多个链路去传输该PDCP PDU的复制数据。
因此,本申请实施例的传输数据的方法,有利于平衡资源利用率和数据传输的可靠性。
可选地,在本申请实施例中,网络设备可以根据所述网络设备根据所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式,还可以对所述网络设备与所述终端设备之间的多个链路传输的上行数据进行信道估计,以确定所述PDCP PDU的传输方式。
应理解,这里的多个链路可以针对是网络设备与终端设备之间的所有链路,也可以是网络设备与终端设备之间的部分链路。
可选地,所述多个链路与多个载波一一对应,所述多个链路中的每个链路通过对应的载波进行信号传输。
可选地,本申请实施里提到的多个链路可以分别一一对应载波聚合情况下的多个物理层载波,也可能是双连接场景下的两个基站所对应的同频或异频物理层载波。
为了便于理解本申请,以下将结合两种方式,对本申请实施例的PDCP PDU的传输方式进行详细说明。
应理解,以下虽然划分了方式A和方式B,但是在不矛盾的情况下,方式A与方式B的方法可以结合或替换使用。
还应理解,本申请实施例提到的预定范围或预定值可以是与PDCP PDU所属的业务有关,具体地,可以与所属的业务对可靠性要求有关系,具体地可以与PDCP PDU所属的业务服务质量(Quality of Service,QoS)等级有关。
方式A
所述网络设备对所述网络设备与所述终端设备之间的多个链路传输的上行数据进行信道估计,以得到第一估计值;利用所述每个链路的所述第一估计值,确定所述PDCP PDU的传输方式。
可选地,在所述多个链路中每两个链路的第一估计值的差值小于等于第一预定值,且所述多个链路中每个链路的第一估计值处于第一预定范围内, 确定所述传输方式为复制数据传输方法;或,在所述多个链路中存在至少两个链路的第一估计值的差值大于第一预定值,或所述多个链路中存在至少一个链路的第一估计值不处于第一预定范围内时,确定所述传输方式为单链路传输方式。
可选地,所述网络设备对所述网络设备与所述终端设备之间的多个链路在第一时间范围内传输的上行数据进行信道估计,以得到所述第一估计值;利用所述第一时间范围内得到的所述第一估计值,确定所述传输方式;利用所述传输方式,在第二时间范围内,所述网络设备向所述终端设备发送所述PDCP PDU。
可选地,该方式A可以用于时分双工(Time Division Duplex,TDD)模式下。
方式B
在一种实现方式中,所述网络设备根据所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式。
可选地,所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,包括以下中的至少一种:
所述终端设备在所述多个链路中的每个链路上,获取的信道状态信息;
所述终端设备在所述多个链路中的每个链路上,进行数据解调的结果的反馈,具体地,所述终端设备在所述多个链路的每个链路上进行独立的数据解调,并对解调结果进行上报,主要是HARQ肯定确认(Acknowledgement,ACK)消息和否定确认(Non-Acknowledgement NACK)消息;
所述终端设备在所述多个链路中的每个链路上进行无线资源管理(Radio Resource Management,RRM)测量的RRM测量结果,例如,层3的用于移动性管理的参考信号接收功率(Reference Signal Receiving Power,RSRP)或参考信号接收质量(Reference Signal Receiving Quality RSRQ)测量,其中,对于高层的RRM测量,终端设备可以基于网络设备的配置信息进行测量,即网络设备配置终端设备何时测量;
所述终端设备对所述多个链路中的每个链路上传输的控制信令进行信道估计得到的第二估计值;
所述终端设备对所述多个链路中的每个链路上发送的波束进行测量获取的波束测量结果。
可选地,所述反馈信息包括所述信道状态信息,所述RRM测量结果、所述第二估计值和所述波束测量结果;在所述多个链路中每两个链路的反馈信息的取值的差值小于等于第二预定值,且所述多个链路中每个链路的反馈信息的取值处于第二预定范围内,确定所述传输方式为复制数据传输方法;或,在所述多个链路中存在至少两个链路的反馈信息的取值的差值大于第二预定值,或所述多个链路中存在至少一个链路的反馈信息的取值不处于第二预定范围内时,确定所述传输方式为单链路传输方式。
例如,所述终端设备在所述多个链路上分别进行信道测量,产生CQI,并通过上行控制信道汇报给所述网络设备,如果多个链路对应的CQI相当,并且都在某一个预定范围,则网络设备决定触发高层复制数据传输,以提高数据传输可靠性。网络设备也可以统计一个时间区间的各个链路对应的CQI大小,根据各链路CQI的统计结果,比如平均统计某个时间间隔内的CQI,如果该CQI在某一个预定范围,则网络设备触发高层复制数据传输;
可选地,根据第三时间范围内接收到的所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式;利用所述传输方式,在第四时间范围内,所述网络设备向所述终端设备发送所述PDCP PDU。
可选地,所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息包括所述终端设备在每个链路上,进行数据解调的结果的反馈,所述解调结果的反馈包括确认ACK消息或否定确认NACK消息;根据在所述第三时间范围内,所述每个链路上接收到的ACK消息的数量和/或NACK消息的数量,确定所述PDCP PDU的传输方式。
可选地,根据所述第三时间范围内,每个链路上接收到的ACK消息的与NACK消息的数量的比值,和/或任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值,从所述多个链路中,确定所述PDCP PDU的传输方式。
例如,所述终端设备在链路上对解调的数据进行HARQ反馈,所述网络设备分别在每个链路上统计接收到的ACK消息的数量和NACK消息的数量。根据某一个时间窗(比如100ms)的统计值确定下一窗口发送PDCP PDU 的传输方式。
其中,确定的传输方式可以用于下一时间范围内的具有某一种属性的PDCP PDU的发送,例如,对于可靠性要求一致的PDCP PDU的发送。
以下结合几种实现方式如何根据每个链路上接收到的ACK消息的与NACK消息的数量的比值,和/或任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值,确定PDCP PDU的传输方式,但应理解,虽然本申请实施例提到的是ACK消息的与NACK消息的数量的比值,但是与其类似的方案都在本申请实施例的保护范围之内,例如,ACK消息的数量与总数量(NACK消息与ACK消息的数量和)的比值。
在一种实现方式中,在所述多个链路中每个链路的ACK消息的数量与NACK消息的数量的比值处于第三预定范围,且所述多个链路中任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值小于等于第三预定值时,确定所述PDCP PDU的传输方式为复制数据传输方式。
例如,如果多个链路上ACK数量与NACK数量的比值相当,且都处于一个预定范围,比如ACK消息的数量/(ACK消息的数量+NACK消息的数量)=[30%,80%],则所述网络设备决定在下一个统计窗口进行高层数据复制传输。
在一种实现方式中,在所述多个链路中存在第一链路时,确定所述PDCP PDU的传输方式为单链路传输方式,其中,所述第一链路的ACK消息的数量与NACK消息的数量的比值高于所述多个链路中其它任一个链路的ACK消息的数量与NACK消息的数量的比值,且所述第一链路的ACK消息的数量与NACK消息的数量的比值与多个链路中其它任一个链路的ACK消息的数量与NACK消息的数量的比值的差值大于等于第四预定值。
可选地,利用所述第一链路,所述网络设备向所述终端设备发送所述PDCP PDU。
例如,如果某多个链路中存在一个链路的ACK消息数量与NACK消息数量的比值高于另外链路的ACK数量与NACK数量的比值,且比值差异大于某一个门限,比如第一链路上的ACK消息数量/(ACK消息数量+NACK消息数量)=90%,第二链路上的ACK消息的数量/(ACK消息的数量+NACK消息的数量)=50%,比值差异为40%,超过一个门限,比如20%,则所述网络设备决定在下一个统计窗口在所述第一链路上进行单链接传输。
在一种实现方式中,在所述多个链路中每个链路的ACK消息的数量与NACK消息的数量的比值大于等于第五预定值,且所述多个链路中任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值小于等于第六预定值时,确定所述PDCP PDU的传输方式为单链路传输方式。
可选地,利用所述多个链路中的第二链路,所述网络设备向所述终端设备发送所述PDCP PDU,其中,所述第二链路是所述多个链路中ACK消息的数量与NACK消息的数量的比值最高的链路。
例如,如果所述多个链路的ACK数量与/NACK数量的比值都相当,且在一个比较高的范围,比如超过70%,则所述网络设备选取比值最高的链路进行单链接数据传输;其他链路可以用来传输与当前选择链路不同的数据。
在一种实现方式中,在所述多个链路中的每个链路的ACK消息的数量与NACK消息的数量的比值小于等于第七预定值时,确定所述PDCP PDU的传输方式为单链路传输方式或复制数据传输方式。
例如,如果所述多个连接的ACK消息的数量与NACK数量的比值都相当,且在一个比较低的范围,比如低于30%,则所述网络设备可以选择高层复制数据传输方式或者单链路数据。
可选地,根据所述PDCP PDU的传输方式,从所述多个链路中选择至少一个链路;对所述至少一个链路进行链路自适应;利用链路自适应后的所述至少一个链路,发送所述PDCP PDU。
具体地说,在所述多个链路中的每个链路的ACK消息的数量与NACK消息的数量的比值小于等于第七预定值时,网络设备可以采用单链路传输或复制数据的传输方式发生PDCP PDU,其中,由于每个链路的ACK消息的数量与NACK消息的数量的比值均小于第七预定值,说明每个链路的信道质量均不佳,则可以对选择的链路进行链路自适应,也即利用较低的调制编码方式,在选择的链路上发送PDCP PDU。
可选地,在本申请实施例中,上述基于ACK数量和NACK数量判断PDCP PDU的传输方式的判断方式也适用于其他反馈信息,为了简洁,在此不再赘述。
可选地,在本申请实施例中,当终端设备选择了其中部分链路传输该PDCP PDU时,可以采用其他链路来传输别的PDCP PDU。
可选地,在本申请实施例中,在确定了PDCP PDU的传输方式之后,可 以根据PDCP PDU传输方式,从多个链路中选择用于发送该PDCP PDU的链路,如果是复制数据传输的方式,则可以从多个中选择全部或部分的多个链路进行PDCP PDU传输,如果是单链路传输方式,可以从多个链路中选择一个链路进行PDCP PDU传输。
可选地,可以根据多个链路的链路质量,从多个链路中,选择用于发送PDCP PDU的链路。
例如,可以根据各个链路上述的第一估计值,第二估计值和RRM测量结果、信道状态信息、对数据进行解调的结果和波束测量结果中的至少一个链路。
图4是根据本申请实施例的网络设备300的示意性框图。其中,所述网络设备300包括处理单元310和收发单元320;其中,
所述处理单元310用于:确定PDCP PDU的传输方式,所述传输方式包括复制数据传输方式或单链路传输方式;
所述收发单元320用于:根据所述PDCP PDU的传输方式,向所述终端设备发送所述PDCP PDU。
可选地,所述处理单元310进一步用于:
根据所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式。
可选地,所述处理单元310进一步用于:
对所述网络设备与所述终端设备之间的多个链路传输的上行数据进行信道估计,以得到第一估计值;
利用所述每个链路的所述第一估计值,确定所述PDCP PDU的传输方式。
可选地,所述处理单元310进一步用于:
在所述多个链路中每两个链路的第一估计值的差值小于等于第一预定值,且所述多个链路中每个链路的第一估计值处于第一预定范围内,确定所述传输方式为复制数据传输网络设备;或,
在所述多个链路中存在至少两个链路的第一估计值的差值大于第一预定值,或所述多个链路中存在至少一个链路的第一估计值不处于第一预定范围内时,确定所述传输方式为单链路传输方式。
可选地,所述处理单元310进一步用于:
对所述网络设备与所述终端设备之间的多个链路在第一时间范围内传输的上行数据进行信道估计,以得到所述第一估计值;
利用所述第一时间范围内得到的所述第一估计值,确定所述传输方式;
利用所述传输方式,在第二时间范围内,向所述终端设备发送所述PDCP PDU。
可选地,所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,包括以下中的至少一种:
所述终端设备在所述多个链路中的每个链路上,获取的信道状态信息;
所述终端设备在所述多个链路中的每个链路上,进行数据解调的结果的反馈;
所述终端设备在所述多个链路中的每个链路上进行无线资源管理RRM测量的RRM测量结果;
所述终端设备对所述多个链路中的每个链路上传输的控制信令进行信道估计得到的第二估计值;
所述终端设备对所述多个链路中的每个链路上发送的波束进行测量获取的波束测量结果。
可选地,所述反馈信息包括所述信道状态信息,所述RRM测量结果、所述第二估计值和所述波束测量结果;
所述处理单元310进一步用于:
在所述多个链路中每两个链路的反馈信息的取值的差值小于等于第二预定值,且所述多个链路中每个链路的反馈信息的取值处于第二预定范围内,确定所述传输方式为复制数据传输网络设备;或,
在所述多个链路中存在至少两个链路的反馈信息的取值的差值大于第二预定值,或所述多个链路中存在至少一个链路的反馈信息的取值不处于第二预定范围内时,确定所述传输方式为单链路传输方式。
可选地,所述处理单元310进一步用于:
根据第三时间范围内接收到的所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式;
利用所述传输方式,在第四时间范围内,向所述终端设备发送所述PDCP PDU。
可选地,所述终端设备针对所述网络设备与所述终端设备之间的多个链 路的反馈信息包括所述终端设备在每个链路上,进行数据解调的结果的反馈,所述解调结果的反馈包括确认ACK消息或否定确认NACK消息;
所述处理单元310进一步用于:
根据在所述第三时间范围内,所述每个链路上接收到的ACK消息的数量和/或NACK消息的数量,确定所述PDCP PDU的传输方式。
可选地,所述处理单元310进一步用于:
根据所述第三时间范围内,每个链路上接收到的ACK消息的与NACK消息的数量的比值,和/或任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值,从所述多个链路中,确定所述PDCP PDU的传输方式。
可选地,所述处理单元310进一步用于:
在所述多个链路中每个链路的ACK消息的数量与NACK消息的数量的比值处于第三预定范围,且所述多个链路中任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值小于等于第三预定值时,确定所述PDCP PDU的传输方式为复制数据传输方式。
可选地,所述处理单元310进一步用于:
在所述多个链路中存在第一链路时,确定所述PDCP PDU的传输方式为单链路传输方式,其中,所述第一链路的ACK消息的数量与NACK消息的数量的比值高于所述多个链路中其它任一个链路的ACK消息的数量与NACK消息的数量的比值,且所述第一链路的ACK消息的数量与NACK消息的数量的比值与多个链路中其它任一个链路的ACK消息的数量与NACK消息的数量的比值的差值大于等于第四预定值。
可选地,所述收发单元320进一步用于:
利用所述第一链路,向所述终端设备发送所述PDCP PDU。
可选地,所述处理单元310进一步用于:
在所述多个链路中每个链路的ACK消息的数量与NACK消息的数量的比值大于等于第五预定值,且所述多个链路中任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值小于等于第六预定值时,确定所述PDCP PDU的传输方式为单链路传输方式。
可选地,所述收发单元320进一步用于:
利用所述多个链路中的第二链路,向所述终端设备发送所述PDCP PDU,其中,所述第二链路是所述多个链路中ACK消息的数量与NACK消 息的数量的比值最高的链路。
可选地,所述处理单元310进一步用于:
在所述多个链路中的每个链路的ACK消息的数量与NACK消息的数量的比值小于等于第七预定值时,确定所述PDCP PDU的传输方式为单链路传输方式或复制数据传输方式。
可选地,所述收发单元320进一步用于:
根据所述PDCP PDU的传输方式,从所述多个链路中选择至少一个链路;
对所述至少一个链路进行链路自适应;
利用链路自适应后的所述至少一个链路,发送所述PDCP PDU。
可选地,所述多个链路与多个载波一一对应,所述多个链路中的每个链路通过对应的载波进行信号传输。
应理解,该网络设备300可以对应于方法200中的网络设备,可以实现方法200中的网络设备的相应功能,为了简洁,在此不再赘述。
图5是本申请实施例的系统芯片400的一个示意性结构图。图5的系统芯片400包括输入接口401、输出接口402、所述处理器403以及存储器404之间可以通过内部通信连接线路相连,所述处理器403用于执行所述存储器704中的代码。
可选地,当所述代码被执行时,所述处理器403实现图2所示的方法200中由网络设备执行的方法。为了简洁,在此不再赘述。
图6是根据本申请实施例的通信设备500的示意性框图。如图6所示,该通信设备600包括处理器610和存储器620。其中,该存储器620可以存储有程序代码,该处理器610可以执行该存储器620中存储的程序代码。
可选地,如图6所示,该通信设备600可以包括收发器630,处理器610可以控制收发器630对外通信。
可选地,该处理器610可以调用存储器620中存储的程序代码,执行图2的方法200中的网络设备的相应操作,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方 法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。

Claims (36)

  1. 一种无线通信方法,其特征在于,包括:
    网络设备确定分组数据汇聚层协议PDCP协议数据单元PDU的传输方式,所述传输方式包括复制数据传输方式或单链路传输方式;
    根据所述PDCP PDU的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU。
  2. 根据权利要求1所述的方法,其特征在于,所述网络设备确定PDCP PDU的传输方式,包括:
    所述网络设备根据所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式。
  3. 根据权利要求1所述的方法,所述网络设备确定PDCP PDU的传输方式,包括:
    所述网络设备对所述网络设备与所述终端设备之间的多个链路传输的上行数据进行信道估计,以得到第一估计值;
    利用所述每个链路的所述第一估计值,确定所述PDCP PDU的传输方式。
  4. 根据权利要求3所述的方法,其特征在于,所述利用所述每个链路的所述第一估计值,确定所述PDCP PDU的传输方式,包括:
    在所述多个链路中每两个链路的第一估计值的差值小于等于第一预定值,且所述多个链路中每个链路的第一估计值处于第一预定范围内时,确定所述传输方式为复制数据传输方法;或,
    在所述多个链路中存在至少两个链路的第一估计值的差值大于第一预定值,或所述多个链路中存在至少一个链路的第一估计值不处于第一预定范围内时,确定所述传输方式为单链路传输方式。
  5. 根据权利要求3或4所述的方法,其特征在于,所述网络设备确定PDCP PDU的传输方式,包括,包括:
    所述网络设备对所述网络设备与所述终端设备之间的多个链路在第一时间范围内传输的上行数据进行信道估计,以得到所述第一估计值;
    利用所述第一时间范围内得到的所述第一估计值,确定所述传输方式;
    所述根据所述PDCP PDU的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU,包括:
    利用所述传输方式,在第二时间范围内,所述网络设备向所述终端设备发送所述PDCP PDU。
  6. 根据权利要求2所述的方法,其特征在于,所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,包括以下中的至少一种:
    所述终端设备在所述多个链路中的每个链路上,获取的信道状态信息;
    所述终端设备在所述多个链路中的每个链路上,进行数据解调的结果的反馈;
    所述终端设备在所述多个链路中的每个链路上进行无线资源管理RRM测量的RRM测量结果;
    所述终端设备对所述多个链路中的每个链路上传输的控制信令进行信道估计得到的第二估计值;
    所述终端设备对所述多个链路中的每个链路上发送的波束进行测量获取的波束测量结果。
  7. 根据权利要求6所述的方法,其特征在于,所述反馈信息包括所述信道状态信息,所述RRM测量结果、所述第二估计值和所述波束测量结果;
    所述网络设备根据所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式,包括:
    在所述多个链路中每两个链路的反馈信息的取值的差值小于等于第二预定值,且所述多个链路中每个链路的反馈信息的取值处于第二预定范围内时,确定所述传输方式为复制数据传输方法;或,
    在所述多个链路中存在至少两个链路的反馈信息的取值的差值大于第二预定值,或所述多个链路中存在至少一个链路的反馈信息的取值不处于第二预定范围内时,确定所述传输方式为单链路传输方式。
  8. 根据权利要求2或7所述的方法,其特征在于,所述网络设备根据所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式,包括:
    根据第三时间范围内接收到的所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式;
    所述根据所述PDCP PDU的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU,包括:
    利用所述传输方式,在第四时间范围内,所述网络设备向所述终端设备发送所述PDCP PDU。
  9. 根据权利要求8所述的方法,其特征在于,所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息包括所述终端设备在每个链路上,进行数据解调的结果的反馈,所述解调结果的反馈包括确认ACK消息或否定确认NACK消息;
    所述网络设备根据所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式,包括:
    根据在所述第三时间范围内,所述每个链路上接收到的ACK消息的数量和/或NACK消息的数量,确定所述PDCP PDU的传输方式。
  10. 根据权利要求9所述的方法,其特征在于,所述根据在所述第三时间范围内,所述每个链路上接收到的ACK消息的数量和/或NACK消息的数量,确定所述PDCP PDU的传输方式,包括:
    根据所述第三时间范围内,每个链路上接收到的ACK消息的与NACK消息的数量的比值,和/或任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值,从所述多个链路中,确定所述PDCP PDU的传输方式。
  11. 根据权利要求10所述的方法,其特征在于,所述确定所述PDCP PDU的传输方式,包括:
    在所述多个链路中每个链路的ACK消息的数量与NACK消息的数量的比值处于第三预定范围,且所述多个链路中任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值小于等于第三预定值时,确定所述PDCP PDU的传输方式为复制数据传输方式。
  12. 根据权利要求10所述的方法,其特征在于,所述确定所述PDCP PDU的传输方式,包括:
    在所述多个链路中存在第一链路时,确定所述PDCP PDU的传输方式为单链路传输方式,其中,所述第一链路的ACK消息的数量与NACK消息的数量的比值高于所述多个链路中其它任一个链路的ACK消息的数量与NACK消息的数量的比值,且所述第一链路的ACK消息的数量与NACK消息的数量的比值与多个链路中其它任一个链路的ACK消息的数量与NACK消息的数量的比值的差值大于等于第四预定值。
  13. 根据权利要求12所述的方法,其特征在于,根据所述PDCP PDU 的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU,包括:
    利用所述第一链路,所述网络设备向所述终端设备发送所述PDCP PDU。
  14. 根据权利要求10所述的方法,其特征在于,所述确定所述PDCP PDU的传输方式,包括:
    在所述多个链路中每个链路的ACK消息的数量与NACK消息的数量的比值大于等于第五预定值,且所述多个链路中任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值小于等于第六预定值时,确定所述PDCP PDU的传输方式为单链路传输方式。
  15. 根据权利要求13所述的方法,其特征在于,所述根据所述PDCP PDU的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU,包括:
    利用所述多个链路中的第二链路,所述网络设备向所述终端设备发送所述PDCP PDU,其中,所述第二链路是所述多个链路中ACK消息的数量与NACK消息的数量的比值最高的链路。
  16. 根据权利要求10所述的方法,其特征在于,所述确定所述PDCP PDU的传输方式,包括:
    在所述多个链路中的每个链路的ACK消息的数量与NACK消息的数量的比值小于等于第七预定值时,确定所述PDCP PDU的传输方式为单链路传输方式或复制数据传输方式。
  17. 根据权利要求16所述的方法,其特征在于,所述根据所述PDCP PDU的传输方式,所述网络设备向所述终端设备发送所述PDCP PDU,包括:
    根据所述PDCP PDU的传输方式,从所述多个链路中选择至少一个链路;
    对所述至少一个链路进行链路自适应;
    利用链路自适应后的所述至少一个链路,发送所述PDCP PDU。
  18. 根据权利要求2至17中任一项所述的方法,其特征在于,所述多个链路与多个载波一一对应,所述多个链路中的每个链路通过对应的载波进行信号传输。
  19. 一种网络设备,其特征在于,包括处理单元和收发单元;其中,
    所述处理单元用于:确定分组数据汇聚层协议PDCP协议数据单元PDU的传输方式,所述传输方式包括复制数据传输方式或单链路传输方式;
    所述收发单元用于:根据所述PDCP PDU的传输方式,向所述终端设备发送所述PDCP PDU。
  20. 根据权利要求19所述的网络设备,其特征在于,所述处理单元进一步用于:
    根据所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式。
  21. 根据权利要求19所述的网络设备,所述处理单元进一步用于:
    对所述网络设备与所述终端设备之间的多个链路传输的上行数据进行信道估计,以得到第一估计值;
    利用所述每个链路的所述第一估计值,确定所述PDCP PDU的传输方式。
  22. 根据权利要求21所述的网络设备,其特征在于,所述处理单元进一步用于:
    在所述多个链路中每两个链路的第一估计值的差值小于等于第一预定值,且所述多个链路中每个链路的第一估计值处于第一预定范围内,确定所述传输方式为复制数据传输网络设备;或,
    在所述多个链路中存在至少两个链路的第一估计值的差值大于第一预定值,或所述多个链路中存在至少一个链路的第一估计值不处于第一预定范围内时,确定所述传输方式为单链路传输方式。
  23. 根据权利要求21或22所述的网络设备,其特征在于,所述处理单元进一步用于:
    对所述网络设备与所述终端设备之间的多个链路在第一时间范围内传输的上行数据进行信道估计,以得到所述第一估计值;
    利用所述第一时间范围内得到的所述第一估计值,确定所述传输方式;
    利用所述传输方式,在第二时间范围内,向所述终端设备发送所述PDCP PDU。
  24. 根据权利要求20所述的网络设备,其特征在于,所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,包括以下中的至少一种:
    所述终端设备在所述多个链路中的每个链路上,获取的信道状态信息;
    所述终端设备在所述多个链路中的每个链路上,进行数据解调的结果的 反馈;
    所述终端设备在所述多个链路中的每个链路上进行无线资源管理RRM测量的RRM测量结果;
    所述终端设备对所述多个链路中的每个链路上传输的控制信令进行信道估计得到的第二估计值;
    所述终端设备对所述多个链路中的每个链路上发送的波束进行测量获取的波束测量结果。
  25. 根据权利要求24所述的网络设备,其特征在于,所述反馈信息包括所述信道状态信息,所述RRM测量结果、所述第二估计值和所述波束测量结果;
    所述处理单元进一步用于:
    在所述多个链路中每两个链路的反馈信息的取值的差值小于等于第二预定值,且所述多个链路中每个链路的反馈信息的取值处于第二预定范围内,确定所述传输方式为复制数据传输网络设备;或,
    在所述多个链路中存在至少两个链路的反馈信息的取值的差值大于第二预定值,或所述多个链路中存在至少一个链路的反馈信息的取值不处于第二预定范围内时,确定所述传输方式为单链路传输方式。
  26. 根据权利要求20或25所述的网络设备,其特征在于,所述处理单元进一步用于:
    根据第三时间范围内接收到的所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息,确定所述PDCP PDU的传输方式;
    利用所述传输方式,在第四时间范围内,向所述终端设备发送所述PDCP PDU。
  27. 根据权利要求26所述的网络设备,其特征在于,所述终端设备针对所述网络设备与所述终端设备之间的多个链路的反馈信息包括所述终端设备在每个链路上,进行数据解调的结果的反馈,所述解调结果的反馈包括确认ACK消息或否定确认NACK消息;
    所述处理单元进一步用于:
    根据在所述第三时间范围内,所述每个链路上接收到的ACK消息的数量和/或NACK消息的数量,确定所述PDCP PDU的传输方式。
  28. 根据权利要求27所述的网络设备,其特征在于,所述处理单元进一 步用于:
    根据所述第三时间范围内,每个链路上接收到的ACK消息的与NACK消息的数量的比值,和/或任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值,从所述多个链路中,确定所述PDCP PDU的传输方式。
  29. 根据权利要求28所述的网络设备,其特征在于,所述处理单元进一步用于:
    在所述多个链路中每个链路的ACK消息的数量与NACK消息的数量的比值处于第三预定范围,且所述多个链路中任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值小于等于第三预定值时,确定所述PDCP PDU的传输方式为复制数据传输方式。
  30. 根据权利要求28所述的网络设备,其特征在于,所述处理单元进一步用于:
    在所述多个链路中存在第一链路时,确定所述PDCP PDU的传输方式为单链路传输方式,其中,所述第一链路的ACK消息的数量与NACK消息的数量的比值高于所述多个链路中其它任一个链路的ACK消息的数量与NACK消息的数量的比值,且所述第一链路的ACK消息的数量与NACK消息的数量的比值与多个链路中其它任一个链路的ACK消息的数量与NACK消息的数量的比值的差值大于等于第四预定值。
  31. 根据权利要求30所述的网络设备,其特征在于,所述收发单元进一步用于:
    利用所述第一链路,向所述终端设备发送所述PDCP PDU。
  32. 根据权利要求28所述的网络设备,其特征在于,所述处理单元进一步用于:
    在所述多个链路中每个链路的ACK消息的数量与NACK消息的数量的比值大于等于第五预定值,且所述多个链路中任意两个链路的ACK消息的数量与NACK消息的数量的比值的差值小于等于第六预定值时,确定所述PDCP PDU的传输方式为单链路传输方式。
  33. 根据权利要求32所述的网络设备,其特征在于,所述收发单元进一步用于:
    利用所述多个链路中的第二链路,向所述终端设备发送所述PDCP PDU,其中,所述第二链路是所述多个链路中ACK消息的数量与NACK消 息的数量的比值最高的链路。
  34. 根据权利要求28所述的网络设备,其特征在于,所述处理单元进一步用于:
    在所述多个链路中的每个链路的ACK消息的数量与NACK消息的数量的比值小于等于第七预定值时,确定所述PDCP PDU的传输方式为单链路传输方式或复制数据传输方式。
  35. 根据权利要求34所述的网络设备,其特征在于,所述收发单元进一步用于:
    根据所述PDCP PDU的传输方式,从所述多个链路中选择至少一个链路;
    对所述至少一个链路进行链路自适应;
    利用链路自适应后的所述至少一个链路,发送所述PDCP PDU。
  36. 根据权利要求20至35中任一项所述的网络设备,其特征在于,所述多个链路与多个载波一一对应,所述多个链路中的每个链路通过对应的载波进行信号传输。
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