WO2021092923A1 - Procédé de communication sans fil, dispositif terminal et dispositif de réseau - Google Patents

Procédé de communication sans fil, dispositif terminal et dispositif de réseau Download PDF

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Publication number
WO2021092923A1
WO2021092923A1 PCT/CN2019/118870 CN2019118870W WO2021092923A1 WO 2021092923 A1 WO2021092923 A1 WO 2021092923A1 CN 2019118870 W CN2019118870 W CN 2019118870W WO 2021092923 A1 WO2021092923 A1 WO 2021092923A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
side row
feedback
retransmit
before receiving
Prior art date
Application number
PCT/CN2019/118870
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English (en)
Chinese (zh)
Inventor
赵振山
卢前溪
林晖闵
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/CN2019/118870 priority Critical patent/WO2021092923A1/fr
Priority to CN201980099737.4A priority patent/CN114342431A/zh
Publication of WO2021092923A1 publication Critical patent/WO2021092923A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the embodiments of the present application relate to the communication field, and more specifically, to a wireless communication method, terminal device, and network device.
  • the side line data can be transmitted in the blind retransmission mode, that is, the sender device does not need feedback from the receiver device and independently decides to retransmit. pass.
  • NR V2X in order to improve the reliability of side-line data transmission, side-line feedback is introduced, and the sending-end device can decide whether to retransmit according to the feedback of the receiving-end device.
  • how to combine the two transmission methods to improve the performance of the system is a problem that needs to be solved.
  • the embodiments of the present application provide a wireless communication method, terminal device, and network device.
  • the terminal device can independently decide to retransmit before receiving the side-line feedback, so as to ensure the delay requirements and reliability requirements of the side-line data.
  • a wireless communication method includes:
  • the terminal device determines whether to retransmit the first side row data before receiving the side row feedback for the first side row data.
  • a wireless communication method in a second aspect, includes:
  • the network device sends configuration information to the terminal device, where the configuration information is used by the terminal device to determine whether to retransmit the first side row data before receiving the side row feedback for the first side row data.
  • a terminal device which is used to execute the method in the above-mentioned first aspect or its implementation manners.
  • the terminal device includes a functional module for executing the method in the foregoing first aspect or each of its implementation manners.
  • a network device which is used to execute the method in the above second aspect or each of its implementation manners.
  • the network device includes a functional module for executing the method in the above-mentioned second aspect or each of its implementation manners.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned first aspect or each of its implementation modes.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned second aspect or each of its implementation modes.
  • a device for implementing the method in any one of the above-mentioned first aspect to the second aspect or each of its implementation manners.
  • the device includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes the method in any one of the above-mentioned first aspect to the second aspect or each of its implementation manners .
  • a computer-readable storage medium for storing a computer program that enables a computer to execute any one of the first aspect to the second aspect or the method in each implementation manner thereof.
  • a computer program product including computer program instructions that cause a computer to execute any one of the first aspect to the second aspect or the method in each implementation manner thereof.
  • a computer program which, when run on a computer, causes the computer to execute any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
  • the terminal device can determine whether to retransmit the first side row data before receiving the side row feedback for the first side row data, thereby ensuring the delay requirements and reliability requirements of the side row data.
  • Fig. 1 is a schematic frame diagram of a transmission mode according to an embodiment of the present application.
  • Fig. 2 is a schematic frame diagram of another transmission mode according to an embodiment of the present application.
  • Fig. 3 is a schematic frame diagram of a unicast transmission mode according to an embodiment of the present application.
  • Fig. 4 is a schematic frame diagram of a multicast transmission mode according to an embodiment of the present application.
  • Fig. 5 is a schematic frame diagram of a broadcast transmission mode according to an embodiment of the present application.
  • FIG. 6 is a schematic frame diagram of a unicast feedback transmission mode according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of retransmission based on side row feedback according to an embodiment of the present application.
  • Fig. 8 is a schematic diagram of a blind retransmission according to an embodiment of the present application.
  • Fig. 9 is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.
  • Fig. 10 is a schematic flowchart of a network device indicating retransmission according to an embodiment of the present application.
  • Fig. 11 is a schematic flowchart of another wireless communication method provided according to an embodiment of the present application.
  • Fig. 12 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • Fig. 13 is a schematic block diagram of a network device according to an embodiment of the present application.
  • Fig. 15 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
  • Fig. 16 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • the embodiments of the present application can be applied to any terminal device-to-terminal device communication framework.
  • V2V vehicle to Vehicle
  • V2X vehicle to Everything
  • D2D terminal to terminal
  • the terminal in the embodiment of the present application may be any device or device configured with a physical layer and a media access control layer, and the terminal device may also be referred to as an access terminal.
  • the terminal device may also be referred to as an access terminal.
  • UE User Equipment
  • user unit user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital linear processing (Personal Digital Assistant, PDA), and a wireless Communication-enabled handheld devices, computing devices, or other linear processing devices connected to wireless modems, in-vehicle devices, wearable devices, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the embodiment of the present application takes a vehicle-mounted terminal as an example for description, but is not limited to this.
  • the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) defines two transmission modes, which are respectively denoted as Mode A and Mode B.
  • Fig. 1 is a schematic diagram of mode A of an embodiment of the present application.
  • Fig. 2 is a schematic diagram of mode B of an embodiment of the present application.
  • the transmission resources of the vehicle-mounted terminal are allocated by the base station 110, and the vehicle-mounted terminal transmits data on the side link according to the resources allocated by the base station 110.
  • the base station 110 may allocate resources for a single transmission to the terminal, or allocate resources for semi-static transmission to the terminal.
  • the vehicle-mounted terminal (the vehicle-mounted terminal 131 and the vehicle-mounted terminal 132) autonomously selects transmission resources for data transmission on the resources of the side link.
  • the vehicle-mounted terminal can select the transmission resource randomly, or select the transmission resource by means of interception.
  • the following takes the vehicle-mounted terminal 131 as an example for specific description.
  • the vehicle-mounted terminal 131 obtains a set of available transmission resources in the resource pool by means of interception, and the vehicle-mounted terminal 131 randomly selects a transmission resource from the set for data transmission.
  • the vehicle-mounted terminal 131 may also adopt a semi-static transmission mode. That is, after acquiring a transmission resource, the vehicle-mounted terminal 131 continuously uses the transmission resource in multiple transmission periods to reduce the probability of resource reselection and resource conflict.
  • the vehicle-mounted terminal 131 can carry information for reserving resources for the next transmission in the control information of this transmission, so that other terminals (for example, the vehicle-mounted terminal 132) can determine whether this resource is reserved by the user by detecting the control information of the user. And use, to achieve the purpose of reducing resource conflicts.
  • the user may be in a mixed mode, that is, mode A can be used for resource acquisition, and at the same time You can use mode B for resource acquisition.
  • mode A can be used for resource acquisition
  • mode B can be used for resource acquisition
  • unicast and multicast transmission methods are introduced.
  • the receiving end has only one terminal, as shown in Figure 3, unicast transmission is performed between UE1 and UE2; for multicast transmission, the receiving end is all terminals in a communication group, or All terminals within a certain transmission distance, as shown in Figure 4, UE1, UE2, UE3, and UE4 form a communication group, where UE1 sends data, and other terminal devices in the group are receiving end terminals; for broadcast transmission
  • the receiving end is any terminal, as shown in Figure 5, where UE 1 is the transmitting end terminal, and the other terminals around it are all receiving end terminals.
  • a side-line feedback channel is introduced.
  • the sender terminal sends sideline data (including Physical Sidelink Control Channel (PSCCH) and Physical Sidelink Shared Channel) to the receiver terminal. , PSSCH)), the receiving end terminal sends Hybrid Automatic Repeat reQuest (HARQ) feedback information to the transmitting end terminal, and the transmitting end terminal determines whether retransmission is required according to the feedback information of the receiving end terminal.
  • HARQ feedback information is carried in a side-line feedback channel, such as a physical side-link feedback channel (PSFCH).
  • PSFCH physical side-link feedback channel
  • the side-line feedback can be activated or deactivated through pre-configuration information or network configuration information. If the side-line (Sidelink, SL) feedback is activated, the receiving end terminal receives the side-line data sent by the sending end terminal, and sends it to the sending end according to the detection result. When the HARQ acknowledgement (Acknowledgement, ACK) or negative acknowledgement (Negative Acknowledgement, NACK) is fed back, the sender terminal decides to send retransmission data or new data according to the feedback information of the receiver; if the sideline feedback is deactivated, the receiver terminal does not need to send For feedback information, the sending end terminal usually sends data in a blind retransmission manner. For example, the sending end terminal repeatedly sends K times for each side row data, instead of deciding whether to send retransmission data based on the feedback information of the receiving end terminal.
  • HARQ acknowledgement Acknowledgement, ACK
  • NACK Negative Acknowledgement
  • blind retransmission can be used to transmit side-line data, that is, the sending end device does not need feedback from the receiving end device and independently decides to retransmit.
  • side-line feedback is introduced, so the sender device can decide whether to retransmit according to the feedback of the receiver device. If the receiver device feedbacks ACK, the sender device stops retransmission; if the receiver device feedbacks ACK, the sender device stops retransmission; The device feeds back NACK, and the sender device performs retransmission.
  • the sender device In transmission based on sideline feedback, the sender device sends sideline data, the receiver device sends sideline feedback information to the sender device based on the detection of the received data, and the sender device decides whether or not according to the feedback information of the receiver device. Retransmission is performed, that is, the transmission of one side line data corresponds to one side line feedback.
  • the sending end device transmits the side line data on a side line transmission resource (PSCCH+PSSCH #1 in the figure), and the receiving end The device transmits the side-line feedback on one side-line feedback resource (PSFCH#1 in the figure). If the receiving end feeds back NACK, the sending-end device transmits the resource on the other side-line (PSCCH+PSSCH#2 in the picture).
  • the side line data is retransmitted on the upper side. If the receiving end feeds back an ACK, the sending end device transmits the new side line data on PSCCH+PSSCH #2, and the receiving end device feeds back resources on the other side line (PSFCH# in the figure). 2) Upper transmission side line feedback.
  • the sender device In some cases, such as the side line data to be sent by the sender device has a very high latency requirement, such as ⁇ 5ms, the sender device usually needs to send the side line data in the shortest possible time. The feedback of the receiving device determines that the retransmission will cause additional delay. Therefore, a combination of blind retransmission and retransmission based on side row feedback can be used. As shown in Figure 8 below, the transmitting device transmits on PSCCH+PSSCH#1 For side-line data, the retransmission data of the side-line data is transmitted on PSCCH+PSSCH#2, and the receiving end device transmits the side-line feedback on the PSFCH.
  • the sending end device sends the side row data twice before receiving the side row feedback, so that the side row data can be sent out as quickly as possible, and the transmission reliability is improved through two transmissions.
  • all transmissions use this method to send sideline data, it will cause system resources to become congested, increase the probability of transmission collisions, and reduce system performance. For example, if the receiving end device has correctly received the data when the terminal device transmits for the first time, the transmitting end device does not need to send retransmissions, which can reduce resource utilization and reduce transmission conflicts between terminal devices.
  • the present application designs a side-line retransmission scheme.
  • the terminal device can independently decide to retransmit before receiving the side-line feedback so as to ensure the delay requirements and reliability requirements of the side-line data.
  • FIG. 9 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application.
  • the method 200 may be executed by a terminal device.
  • the terminal device shown in FIG. 9 may be a vehicle-mounted terminal as shown in any one of FIGS. 1 to 8.
  • the method 200 may include some or all of the following contents:
  • S210 The terminal device determines whether to retransmit the first side row data before receiving the side row feedback for the first side row data.
  • the retransmission before the side row feedback is received may be blind retransmission. And before receiving the side-line feedback, the terminal device can independently decide whether to retransmit.
  • the feedback for the first side row data during the side row feedback if the side row feedback is ACK or NACK, is used to indicate whether the first side row data is received correctly.
  • the terminal device may initially transmit or retransmit the first side row data by means of unicast, multicast, broadcast, or the like.
  • the terminal device determines to retransmit the first side row data before receiving the side row feedback, the terminal device performs the retransmission for the first side row before receiving the side row feedback. Retransmission of data.
  • the terminal device receives the sideline feedback; and the terminal device determines whether to retransmit the first sideline data according to the sideline feedback.
  • step S210 may specifically be:
  • the terminal device determines whether to retransmit the first side row data before receiving the side row feedback according to the first information, where the first information includes at least one of the following:
  • CBR is a measurement used to measure the occupancy of system resources. The higher the CBR, the more system resources are occupied. When the terminal device selects transmission resources, the higher the probability of collisions with other users' transmissions; CBR The lower the value, the less system resources are occupied, and the lower the probability of collisions with other users' transmissions when the terminal device selects transmission resources. Therefore, when the CBR is high, try to reduce the resource utilization rate, thereby reducing the CBR of the system, and achieving the purpose of reducing interference and conflicts between users.
  • the first information includes a delay requirement for transmitting the first side line data, specifically:
  • the terminal device cannot automatically retransmit the first side line data before receiving the side line feedback.
  • Radio Resource Control RRC
  • DCI Downlink Control Information
  • FIG. 11 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application.
  • the method 300 may be executed by a network device. As shown in FIG. 11, the method 300 may include some or all of the following contents:
  • the configuration information instructs the terminal device to retransmit the first side-line data before receiving the side-line feedback.
  • processing unit 410 is specifically configured to:
  • the priority of the first side row data is carried in the SCI for the first side row data.
  • the communication unit is used to receive configuration information sent by a network device
  • the processing unit 410 is further configured to determine, according to the configuration information, whether to retransmit the first side row data before receiving the side row feedback.
  • the configuration information indicates whether the terminal device performs retransmission for the first side row data before receiving the side row feedback by configuring the transmission resource of the first side row data.
  • the configuration information is one of the following:
  • RRC signaling Broadcast information, RRC signaling, DCI signaling.
  • the terminal device further includes: a communication unit,
  • the priority of the first side row data the delay requirement for transmitting the first side row data, and CBR.
  • the terminal device 400 further includes: a communication unit,
  • the terminal device 400 further includes: a communication unit,
  • the processing unit 410 is further configured to determine whether to retransmit the first side row data according to the side row feedback.
  • the configuration information indicates whether the terminal device performs retransmission for the first side row data before receiving the side row feedback by configuring the transmission resource of the first side row data.
  • the configuration information indicates that the terminal device does not retransmit the first side-line data before receiving the side-line feedback; or,
  • the configuration information instructs the terminal device to retransmit the first side-line data before receiving the side-line feedback.
  • the configuration information is one of the following:
  • RRC signaling Broadcast information, RRC signaling, DCI signaling.
  • the communication unit 510 is further configured to receive second information sent by the terminal device, where the second information includes at least one of the following:
  • the priority of the first side row data the delay requirement for transmitting the first side row data, and CBR.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the network device 500 may correspond to the network device in the method embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the network device 500 are to implement the method shown in FIG. 11, respectively.
  • the corresponding process of the network equipment in 300 will not be repeated here.
  • the communication device 600 may further include a memory 620.
  • the processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.
  • the memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
  • the communication device 600 may specifically be a terminal device of an embodiment of the application, and the communication device 600 may implement the corresponding process implemented by the terminal device in each method of the embodiment of the application. For brevity, details are not repeated here. .
  • Fig. 15 is a schematic structural diagram of a device according to an embodiment of the present application.
  • the apparatus 700 shown in FIG. 15 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the apparatus 700 may further include a memory 720.
  • the processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.
  • the device 700 may further include an input interface 730.
  • the processor 710 can control the input interface 730 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
  • the device 700 may further include an output interface 740.
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the device can be applied to the network equipment in the embodiments of the present application, and the device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application.
  • the device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application.
  • details are not described herein again.
  • the device can be applied to the terminal device in the embodiment of the present application, and the device can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application.
  • the device can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application.
  • FIG. 16 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application. As shown in FIG. 16, the communication system 800 includes a terminal device 810 and a network device 820.
  • the terminal device 810 can be used to implement the corresponding function implemented by the terminal device in the above method
  • the network device 820 can be used to implement the corresponding function implemented by the network device or the base station in the above method. Go into details again.
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC application specific integrated circuit
  • FPGA Field Programmable Gate Array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • DDR SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • Enhanced SDRAM, ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • Synchronous Link Dynamic Random Access Memory Synchronous Link Dynamic Random Access Memory
  • DR RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device or base station in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device or the base station in each method of the embodiment of the present application, in order to It's concise, so I won't repeat it here.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application For the sake of brevity, I won’t repeat it here.
  • the embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device or base station in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device or the base station in each method of the embodiment of the present application, for the sake of brevity , I won’t repeat it here.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For the sake of brevity, I will not repeat them here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device or base station in the embodiment of the present application.
  • the computer program runs on the computer, the computer can execute the corresponding implementation of the network device or the base station in each method of the embodiment of the present application. For the sake of brevity, the process will not be repeated here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • 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, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

La présente demande, selon certains modes de réalisation, concerne un procédé de communication sans fil, un dispositif terminal et un dispositif de réseau. Le dispositif terminal peut décider de manière autonome d'effectuer une retransmission avant de recevoir une rétroaction de liaison latérale, de telle sorte qu'une exigence de retard temporel, une exigence de fiabilité, etc. des données de liaison latérale peuvent être assurées. Le procédé de communication sans fil comprend les étapes suivantes : un dispositif terminal détermine s'il faut retransmettre des premières données de liaison latérale avant de recevoir une rétroaction de liaison latérale pour les premières données de liaison latérale.
PCT/CN2019/118870 2019-11-15 2019-11-15 Procédé de communication sans fil, dispositif terminal et dispositif de réseau WO2021092923A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2019/118870 WO2021092923A1 (fr) 2019-11-15 2019-11-15 Procédé de communication sans fil, dispositif terminal et dispositif de réseau
CN201980099737.4A CN114342431A (zh) 2019-11-15 2019-11-15 无线通信方法、终端设备和网络设备

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PCT/CN2019/118870 WO2021092923A1 (fr) 2019-11-15 2019-11-15 Procédé de communication sans fil, dispositif terminal et dispositif de réseau

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WO2021092923A1 true WO2021092923A1 (fr) 2021-05-20

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