CN106793123B - A kind of mini timeslot configuration and use method and intelligent terminal - Google Patents

Abstract

The embodiment of the invention discloses a mini time slot configuration and use method and an intelligent terminal, wherein the method comprises the following steps: the intelligent terminal receives the initial position and length information of a mini-slot configured by a base station; the intelligent terminal monitors a physical downlink control channel PDCCH or ePDCCH of the mini-slot; and after monitoring the control information belonging to the intelligent terminal according to the PDCCH or the ePDCCH, the intelligent terminal uses the mini-slot to receive and transmit data according to the initial position and the length information of the mini-slot. The technical scheme provided by the invention has the advantage of reducing time delay.

Description

A kind of mini timeslot configuration and use method and intelligent terminal

technical field

The present invention relates to the field of communications, and in particular, to a mini timeslot configuration and use method and an intelligent terminal.

Background technique

The fifth-generation technology needs to support ultra-high data transmission rates, massive connections, and low data transmission delays to meet the needs of different scenarios. At present, the main scenarios of future 5G communication include the following three: enhanced mobile broadband (English: enhanced Mobile BroadBand, eMBB), massive machine type communication (English: massive MachineType Communications, mMTC) and high reliability and low latency (English: Ultra-Reliable and Low Latency Communications, URLLC). These three scenarios are aimed at different business types and their needs are also different. For example, eMBB, an enhanced mobile broadband service, is mainly aimed at business scenarios that require higher data rates. mMTC business, a large number of machine-type communications, mainly for business scenarios with a large number of connections. For URLLC, high-reliability and low-latency services are mainly for service scenarios with high latency requirements and high reliability.

For the URLLC service, the existing technology cannot further reduce the delay of the URLLC service.

SUMMARY OF THE INVENTION

The embodiment of the present invention discloses a mini-slot configuration and use method and an intelligent terminal, which can configure and use the mini-slot, thereby reducing the time delay.

A first aspect of the embodiments of the present invention discloses a mini-slot configuration and use method, and the method includes the following steps:

The intelligent terminal receives the starting position and length information of the mini-slot configured by the base station;

The intelligent terminal monitors the physical downlink control channel PDCCH or ePDCCH of the mini-slot;

After monitoring the control information belonging to the intelligent terminal according to the PDCCH or ePDCCH, the intelligent terminal uses the mini-slot to send and receive data according to the starting position and length information of the mini-slot.

Optionally, the PDCCH or ePDCCH includes: scheduling information of one mini-slot or scheduling information of multiple mini-slots.

Optionally, the intelligent terminal monitors the physical downlink control channel PDCCH or ePDCCH of the mini-slot specifically, including:

The intelligent terminal receives a notification message from the base station, where the notification message includes: the number and location of mini-slots that the intelligent terminal needs to monitor, and the intelligent terminal monitors the PDCCH or ePDCCH of the mini-slot corresponding to the location.

Optionally, the number of starting positions of the mini-slot is N.

Optionally, the larger the subcarrier interval used by the intelligent terminal, the smaller the N;

If the delay requirement of the intelligent terminal is smaller, the N is larger;

For example, using mini-slot to send uplink data, and using uplink scheduling authorization-free transmission, the user equipment obtains the grouping of the user equipment by the base station, and each group has a corresponding starting position N, where N is an integer greater than or equal to 1. In a second aspect, an intelligent terminal is provided, and the intelligent terminal includes:

The transceiver unit is used to receive the starting position and length information of the mini-slot configured by the base station;

The monitoring unit is used to monitor the physical downlink control channel PDCCH or ePDCCH of the mini-slot;

The transceiver unit is further configured to use the mini-slot to send and receive data according to the start position and length information of the mini-slot when the monitoring unit monitors the control information belonging to the intelligent terminal according to the PDCCH or ePDCCH.

Optionally, the PDCCH or ePDCCH includes: scheduling information of one mini-slot or scheduling information of multiple mini-slots.

Optionally, the transceiver unit is further configured to receive a notification message from the base station, where the notification message includes: the number and location of mini-slots that the intelligent terminal needs to monitor;

The monitoring unit is specifically configured to monitor the PDCCH or Epdcch of the mini-slot corresponding to the location.

Optionally, the number of starting positions of the mini-slot is N.

Optionally, the larger the subcarrier interval used by the intelligent terminal, the smaller the N;

If the delay requirement of the intelligent terminal is smaller, the N is larger;

For example, using mini-slot to send uplink data, and using uplink scheduling authorization-free transmission, the user equipment obtains the grouping of the user equipment by the base station, and each group has a corresponding starting position N, where N is an integer greater than or equal to 1. The user equipment of the technical solution provided by the present invention receives the starting position and length information of the mini-slot configured by the base station, and then monitors the PDCCH or ePDCCH to learn its own control information, and uses the The mini-slot transmits and receives data, so it can configure the mini-slot, and let the user equipment use the mini-slot to transmit data according to the configuration of the base station, thereby reducing the delay.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic flowchart of a mini-slot configuration and usage method disclosed in an embodiment of the present invention;

2 is a schematic structural diagram of a mini-slot and a time slot disclosed in an embodiment of the present invention;

3 is a schematic flowchart of another mini-slot configuration and usage method disclosed in an embodiment of the present invention;

4 is a schematic structural diagram of an intelligent terminal disclosed in an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another terminal disclosed in an embodiment of the present invention.

Detailed ways

Before discussing the exemplary embodiments in greater detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowchart depicts the operations as a sequential process, many of the operations may be performed in parallel, concurrently, or concurrently. Additionally, the order of operations can be rearranged. The process may be terminated when its operation is complete, but may also have additional steps not included in the figures. The processes may correspond to methods, functions, procedures, subroutines, subroutines, and the like.

In this context, "computer equipment", also referred to as "computer", refers to an intelligent electronic device that can execute predetermined processing procedures such as numerical calculations and/or logical calculations by running predetermined programs or instructions. It may include a processor and In the memory, the processor executes the surviving instructions pre-stored in the memory to execute the predetermined processing procedure, or the predetermined processing procedure is executed by hardware such as ASIC, FPGA, and DSP, or is realized by a combination of the above two. Computer equipment includes, but is not limited to, servers, personal computers, laptops, tablets, smartphones, etc.

The methods discussed below, some of which are illustrated by flowcharts, may be implemented by hardware, software, firmware, middleware, microcode, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or microcode, the program code or code segments to perform the necessary tasks may be stored in a machine- or computer-readable medium, such as a storage medium. The processor(s) may perform the necessary tasks.

Specific structural and functional details disclosed herein are merely representative and for purposes of describing exemplary embodiments of the present invention. However, the present invention may be embodied in many alternative forms and should not be construed as limited only to the embodiments set forth herein.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one unit from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the exemplary embodiments. As used herein, the singular forms "a", "an" and "an" are intended to include the plural unless the context clearly dictates otherwise. It should also be understood that the terms "comprising" and/or "comprising" as used herein specify the presence of stated features, integers, steps, operations, units and/or components, but do not preclude the presence or addition of one or more Other features, integers, steps, operations, units, components and/or combinations thereof.

It should also be noted that, in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed substantially concurrently or may sometimes be executed in the reverse order, depending upon the functionality/acts involved.

Please refer to FIG. 1. FIG. 1 is a schematic flowchart of a configuration and usage method of a mini-slot disclosed in an embodiment of the present invention. As shown in Figure 1, the method is executed by an intelligent terminal. The structure comparison between the mini-slot and the slot is shown in Figure 2. The method is shown in Figure 1, including the following steps:

Step S101, the intelligent terminal receives the starting position and length information of the mini-slot configured by the base station.

The starting position and length information of the above mini-slot can be carried in the radio resource control (English: Radio Resource Control, RRC) signaling. Of course, in practical applications, the starting position and length information of the above mini-slot can also be obtained through other For example, the length information of the mini-slot may be carried by the downlink control information (English: Downlink Control Information, DCI) in the PDCCH.

The above-mentioned starting position may be unlimited. The multiple possible sending positions of the terminal do not overlap. For example, as shown in Figure 2, the length of the slot is 14 symbols, and the length of the mini-slot is 2 symbols, so there are 7 possible starting positions; The sending positions of the mini-slots can overlap, so there are N-n+1 possible starting positions of the mini-slot (N represents the number of symbols in a slot, and n represents the length of the mini-slot).

Step S102, the intelligent terminal monitors the physical downlink control channel (English: Physical Downlink Control Channel, PDCCH) or ePDCCH of the mini-slot.

Optionally, the foregoing PDCCH or ePDCCH includes scheduling information of one mini-slot or scheduling information of multiple mini-slots. The above multiple mini-slots can also be aggregated mini-slots.

For example, if N mini-slots are aggregated for data transmission, then N mini-slots can be controlled by one PDCCH or ePDCCH, and the user uses N mini-slots after monitoring one PDCCH or ePDCCH to obtain control information. For example, there are 3 mini-slots with a length of two symbols in a slot, which can use the mini-slot aggregation method for data transmission, and can aggregate 3 mini-slots for data transmission. For the aggregated 3 mini-slots, then Only one PDCCH or ePDCCH is required to indicate.

Of course, when a slot contains multiple mini-slots, different users do not need to monitor the PDCCH or ePDCCH of all mini-slots, but according to the notification of the base station, the user equipment selects a part of the PDCCH or ePDCCH of the mini-slot. Monitor, for example, only monitor the PDCCH or ePDCCH of 1 to 2 mini-slots.

Step S103: After the intelligent terminal monitors the control information belonging to the intelligent terminal according to the PDCCH or ePDCCH, it uses the mini-slot to send and receive data according to the starting position and length information of the mini-slot.

The user equipment of the technical solution provided by the present invention receives the starting position and length information of the mini-slot configured by the base station, and then monitors the PDCCH or ePDCCH to learn its own control information, and uses the The mini-slot transmits and receives data, so it can configure the mini-slot, and let the user equipment use the mini-slot to transmit data according to the configuration of the base station, thereby reducing the delay.

Please refer to FIG. 3. FIG. 3 is a schematic flowchart of a configuration and usage method of a mini-slot disclosed in an embodiment of the present invention. As shown in Figure 3, the method is executed by an intelligent terminal. The structure comparison between the mini-slot and the slot is shown in Figure 2. The method is shown in Figure 3, including the following steps:

Step S301, the intelligent terminal receives the starting position and length information of the mini-slot semi-statically notified by the base station through RRC signaling.

The starting positions of the Mini-slots in the foregoing step S301 can be limited. Specifically, the starting positions of N Mini-slots can be set in one slot according to requirements, and the value of N is configurable. For example, only two mini-slot starting positions are limited in a slot, one is at the starting position of the slot, and the other is at the middle position of the slot. For example, the mini-slot whose starting position is at the starting position of the slot can be used for the URLLC service, and the mini-slot whose starting position is in the middle of the slot can be used for the URLLC service or can be used for the unlicensed frequency band after the device occupies the channel. the remaining slot resources.

Optionally, the restriction on the starting position of the mini-slot may be related to the sub-carrier. For example, the larger the subcarrier spacing is, the fewer available starting positions for the mini-slot in a slot, that is, the smaller N is, because even if there is only one starting position, the delay is already very small. Therefore, if the URLLC service can adjust the starting position value according to different subcarrier intervals, such as a starting position, etc., if the mini-slot is used in the unlicensed frequency band, several starting positions can be set according to the needs. Different subcarrier spacings need to be considered to improve spectral efficiency.

Optionally, the above-mentioned limit on the starting position of the Mini-slot may be related to the delay requirement of the service. For example, users with high latency requirements can set more mini-slot starting positions accordingly, and users with low latency requirements can set fewer mini-slot starting positions accordingly.

Optionally, the above-mentioned limit on the starting position of the Mini-slot may be user-based. For example, for the base station, any symbol in the slot can be the starting position of the mini-slot, but for a user, there are only a limited number of starting positions, so that different users can be placed in the time domain. It can be distinguished from the top to prevent collision and ensure the delay.

Optionally, the starting position of the above Mini-slot should also distinguish between uplink and downlink, and the number of starting positions of the mini-slot should be limited in the downlink process to reduce the number of times the user monitors the PDCCH or ePDCCH; if the uplink uses UL-grantfree ( No uplink scheduling authorization) transmission, users can be divided into i groups (i can be configured), each group corresponds to one or more starting position values, so that users are separated from the time domain to prevent collision; if the uplink uses grant based, then obtain the sending position according to the monitoring control information.

Step S302, the intelligent terminal monitors the physical downlink control channel (English: Physical Downlink Control Channel, PDCCH) or ePDCCH of the mini-slot.

Optionally, the foregoing PDCCH or ePDCCH includes scheduling information of one mini-slot or scheduling information of multiple mini-slots. The above multiple mini-slots can also be aggregated mini-slots.

For example, if N mini-slots are aggregated for data transmission, then N mini-slots can be controlled by one PDCCH or ePDCCH, and the user uses N mini-slots after monitoring one PDCCH or ePDCCH to obtain control information. For example, there are 3 mini-slots with a length of two symbols in a slot, which can use the mini-slot aggregation method for data transmission, and can aggregate 3 mini-slots for data transmission. For the aggregated 3 mini-slots, then Only one PDCCH or ePDCCH is required to indicate.

Of course, when a slot contains multiple mini-slots, different users do not need to monitor the PDCCH or ePDCCH of all mini-slots, but according to the notification of the base station, the user equipment selects a part of the PDCCH or ePDCCH of the mini-slot. Monitor, for example, only monitor the PDCCH or ePDCCH of 1 to 2 mini-slots.

Step S303: After the intelligent terminal monitors the control information of the intelligent terminal according to the PDCCH or ePDCCH, it uses the mini-slot to send and receive data according to the starting position and length information of the mini-slot.

The user equipment of the technical solution provided by the present invention receives the starting position and length information of the mini-slot configured by the base station, and then monitors the PDCCH or ePDCCH to learn its own control information, and uses the The mini-slot transmits and receives data, so it can configure the mini-slot, and let the user equipment use the mini-slot to transmit data according to the configuration of the base station, thereby reducing the delay.

Referring to FIG. 4, FIG. 4 provides an intelligent terminal 40, and the intelligent terminal includes:

The transceiver unit 401 is used to receive the starting position and length information of the mini-slot mini-slot configured by the base station;

a monitoring unit 402, configured to monitor the physical downlink control channel PDCCH or ePDCCH of the mini-slot;

The transceiver unit 401 is further configured to use the mini-slot to send and receive data according to the start position and length information of the mini-slot when the monitoring unit monitors the control information belonging to the intelligent terminal according to the PDCCH or ePDCCH.

Optionally, the PDCCH or ePDCCH includes: scheduling information of one mini-slot or scheduling information of multiple mini-slots.

Optionally, the transceiver unit is further configured to receive a notification message from the base station, where the notification message includes: the number and location of mini-slots that the intelligent terminal needs to monitor;

The monitoring unit is specifically configured to monitor the PDCCH or ePDCCH of the mini-slot corresponding to the location.

Optionally, the number of starting positions of the mini-slot is N.

Optionally, the larger the subcarrier interval used by the intelligent terminal, the smaller the N;

For example, the smaller the delay requirement of the intelligent terminal is, the larger the N is.

Please refer to FIG. 5 , which is a schematic structural diagram of a terminal provided by the present application. The terminal 500 includes at least one processor 501 , at least one memory 502 and at least one communication interface 503 . The processor 501, the memory 502 and the communication interface 503 are connected through the communication bus and complete the communication with each other.

The processor 501 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the programs of the above solutions.

The communication interface 503 is used to communicate with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (Wireless Local Area Networks, WLAN).

Memory 502 may be read-only memory (ROM) or other type of static storage device that can store static information and instructions, random access memory (RAM), or other type of static storage device that can store information and instructions The dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disk storage, optical disk storage ( including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being stored by a computer any other medium taken, but not limited to this. The memory can exist independently and be connected to the processor through a bus. The memory can also be integrated with the processor.

Wherein, the memory 502 is used for storing the application code for executing the above solution, and the execution is controlled by the processor 501 . The processor 501 is configured to execute the application code stored in the memory 502 .

The code stored in the memory 502 may perform the steps and refinements of the method as shown in FIG. 1 or FIG. 3 .

An embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium may store a program, and when the program is executed, the program includes part or all of the configuration and use method of any mini-slot described in the above method embodiments step.

It should be noted that, for the sake of simple description, the foregoing method embodiments are all expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. As in accordance with the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, for example, multiple units or components may be combined or Integration into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and 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 in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a computer-readable memory. Based on such understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory, Several instructions are included to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable memory, and the memory can include: a flash disk , Read-only memory (English: Read-Only Memory, referred to as: ROM), random access device (English: Random Access Memory, referred to as: RAM), magnetic disk or optical disk, etc.

The embodiments of the present invention have been introduced in detail above, and specific examples are used to illustrate the principles and implementations of the present invention. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the present invention; at the same time, for Persons of ordinary skill in the art, according to the idea of the present invention, will have changes in the specific embodiments and application scope. To sum up, the content of this description should not be construed as a limitation of the present invention.

Claims (8)

1. A mini-slot configuration and use method, characterized in that the method comprises the following steps:

the intelligent terminal receives the initial position and length information of a mini-slot configured by a base station;

the intelligent terminal monitors a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH of the mini-slot;

after monitoring control information belonging to the intelligent terminal according to a PDCCH or an ePDCCH, the intelligent terminal uses the mini-slot to receive and transmit data according to the initial position and length information of the mini-slot;

the PDCCH or ePDCCH comprises: scheduling information of a plurality of mini-slots; and the plurality of mini-slots are polymerized mini-slots.

2. The method of claim 1, wherein the monitoring, by the intelligent terminal, of the physical downlink control channel PDCCH or ePDCCH of the mini-slot specifically includes:

the intelligent terminal receives a notification message of a base station, wherein the notification message comprises: the method comprises the steps that the number and the positions of mini-slots needing to be monitored by an intelligent terminal are monitored, and the intelligent terminal monitors the PDCCH or the ePDCCH of the mini-slots corresponding to the positions.

3. The method according to claim 1, characterized in that the number of starting positions of the mini-slot is N.

4. The method of claim 3,

the larger the subcarrier interval used by the intelligent terminal is, the smaller the N is;

if the time delay requirement of the intelligent terminal is smaller, the N is larger;

if the mini-slot is used for sending uplink data and the uplink-free scheduling authorization is adopted for sending, the user equipment obtains the grouping of the base station to the user equipment, each group has a corresponding initial position N, and N is an integer greater than or equal to 1.

5. An intelligent terminal, characterized in that, intelligent terminal includes:

the receiving and sending unit is used for receiving the initial position and the length information of the mini-slot configured by the base station;

the monitoring unit is used for monitoring a physical downlink control channel PDCCH or ePDCCH of the mini-slot;

the receiving and sending unit is further configured to use the mini-slot to receive and send data according to the starting position and length information of the mini-slot when the monitoring unit monitors the control information belonging to the intelligent terminal according to the PDCCH or the ePDCCH;

the PDCCH or ePDCCH comprises: scheduling information of a plurality of mini-slots; and the plurality of mini-slots are polymerized mini-slots.

6. The intelligent terminal according to claim 5,

the transceiver unit is further configured to receive an announcement message of the base station, where the announcement message includes: the number and the positions of mini-slots to be monitored by the intelligent terminal;

the monitoring unit is specifically configured to monitor a PDCCH or an ePDCCH of the mini-slot corresponding to the location.

7. The intelligent terminal according to claim 5, wherein the number of the start positions of the mini-slots is N.

8. The intelligent terminal according to claim 7,

the larger the subcarrier interval used by the intelligent terminal is, the smaller the N is;

if the time delay requirement of the intelligent terminal is smaller, the N is larger;

if the mini-slot is used for sending uplink data and the uplink-free scheduling authorization is adopted for sending, the user equipment obtains the grouping of the base station to the user equipment, each group has a corresponding initial position N, and N is an integer greater than or equal to 1.

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