WO2024027773A1 - 通信方法、装置和系统 - Google Patents

通信方法、装置和系统 Download PDF

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Publication number
WO2024027773A1
WO2024027773A1 PCT/CN2023/110824 CN2023110824W WO2024027773A1 WO 2024027773 A1 WO2024027773 A1 WO 2024027773A1 CN 2023110824 W CN2023110824 W CN 2023110824W WO 2024027773 A1 WO2024027773 A1 WO 2024027773A1
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WIPO (PCT)
Prior art keywords
resource
priority value
terminal device
channel
data
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Application number
PCT/CN2023/110824
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English (en)
French (fr)
Inventor
吴昊
彭文杰
Original Assignee
华为技术有限公司
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Publication of WO2024027773A1 publication Critical patent/WO2024027773A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient

Definitions

  • the embodiments of the present application relate to the field of communication, and more specifically, to a communication method, device and system.
  • terminal device A can The preempted COT resources are shared with other terminal devices.
  • Embodiments of the present application provide a communication method, device and system, which can ensure the normal use of COT resources and improve the transmission efficiency of unlicensed spectrum of terminal equipment in side-link communication.
  • a communication method is provided. The method is applied to a first terminal device. The method includes: receiving first information from a second terminal device, where the first information includes a first priority value. Used to indicate the priority of data corresponding to the first information; sending first sharing instruction information to the second terminal device, the first sharing instruction information is used to indicate the first shared resource to the second terminal device, and the second priority value is greater than Or equal to the first priority value, the second priority value is used to indicate the priority corresponding to the first channel occupancy time resource, and the first channel occupancy time resource includes the first shared resource.
  • the priority value of the resource indicated in the indication information is greater than or equal to the priority value corresponding to other terminal devices, which is helpful to It ensures that other terminal devices normally use the shared resources in the acquired channel occupancy time resources, thereby improving the transmission efficiency of unlicensed spectrum.
  • the method before sending the first sharing indication information to the second terminal device, the method further includes: determining the first channel occupancy time resource according to the first priority value.
  • the method further includes: receiving second information from a third terminal device, where the second information includes a third priority value, and the third priority value is used to indicate the priority of data corresponding to the second information.
  • Determining the first channel occupancy time resource according to the first priority value further includes: determining the first channel occupancy time resource according to the first priority value and the third priority value.
  • determining the first channel occupancy time resource according to the first priority value and the third priority value includes: seizing the first channel occupancy time resource according to the largest priority value in the first set.
  • the set includes a first priority value, a third priority value and a priority value corresponding to the data sent by the first terminal device, or the first set includes a first priority value and a third priority value, and the second priority value is Maximum priority value.
  • the first terminal device seizes the channel occupied time resource by learning the priority values of other terminal devices and selecting the largest priority value therefrom. Since the priority value used when seizing the channel occupancy time resources is the largest, other terminal devices can normally use the shared resources in the channel occupancy time resources after receiving the shared resources indicated by the sharing indication information, thereby improving the efficiency of the unlicensed spectrum. transmission efficiency.
  • determining the first channel occupancy time resource according to the first priority value includes: determining the second terminal device as the sharing object corresponding to the first channel occupancy time resource according to the first priority value, and the second priority The level value is the priority value corresponding to the data sent by the first terminal device.
  • the first terminal device seizes the time resource of a channel through the priority value corresponding to the data sent by itself, because the first terminal device obtains the priority corresponding to other terminal devices (for example, the second terminal device) value, therefore, the A terminal device can determine the resource sharing object in the channel occupancy time resource by comparing the priority values corresponding to other terminal devices and the priority values used to seize the channel occupancy time resource. After receiving the shared resources indicated by the sharing indication information, other terminal devices can normally use the shared resources in the channel occupancy time resources, thereby improving the transmission efficiency of the unlicensed spectrum.
  • the first sharing indication information includes the location of the first shared resource and/or the type of detect-before-send LBT at the location of the first shared resource.
  • the first sharing indication information also includes a second priority value.
  • the method further includes determining, based on the first channel occupancy time resource, the location of the first reserved resource, and the location of the second reserved resource, that the second terminal device is a sharer of the first channel occupancy time resource. object, wherein the first information also includes the location of the first reserved resource, and the second information also includes the location of the second reserved resource.
  • the method further includes that the first shared resources are part or all of the first reserved resources that meet the first COT resource sharing condition, where the first COT resource sharing condition includes the first reserved resource.
  • the time interval between resource blocks corresponding to the second reserved resource conforms to the time interval of Type 2 of LBT, the first COT resource covers part or all of the corresponding resource blocks of the first reserved resource, and the first information-related data corresponds to
  • the data priority value is less than or equal to the data priority value corresponding to the data sent by the first terminal device.
  • a communication method is provided.
  • the method is applied to a second terminal device.
  • the method includes: receiving second sharing instruction information, where the second sharing instruction is used to indicate the second shared resource obtained by the second terminal device.
  • the second sharing indication information includes a target channel access priority value, and the target channel access priority value is used to indicate the channel access priority corresponding to the second channel occupancy time resource, and the second channel occupancy time resource includes the second shared resource; according to The target channel access priority value is used to send the first data on the second shared resource.
  • the second terminal device determines whether to repackage the data sent on the shared resource of the channel occupancy time resource according to the priority value corresponding to the channel occupancy time resource, which can enable the second terminal device to use the channel occupancy normally. time resources, thereby improving the transmission efficiency of unlicensed spectrum.
  • the channel access priority value corresponding to the first data is less than or equal to the target channel access priority value.
  • sending the first data on the second shared resource according to the target channel access priority value includes: when the second shared resource is used for initial transmission, packetizing the data according to the target channel access priority value , to obtain the first data, and send the first data on the second shared resource.
  • sending the first data on the second shared resource according to the target channel access priority value includes: when the second shared resource is used for retransmission, if the channel access priority corresponding to the initially transmitted data The value is less than or equal to the target channel access priority value, then the first data is sent on the second shared resource, where the first data is initial transmission data.
  • sending the first data on the second shared resource according to the target channel access priority value includes: when the second shared resource is used for retransmission, if the channel access priority corresponding to the initially transmitted data The value is greater than the target channel access priority value, then the data is grouped according to the target channel access priority value to obtain the first data; and the first data is sent on the second shared resource.
  • a communication method is provided, which method is applied to a fourth terminal device.
  • the method includes: obtaining a first receiving resource of a first side link feedback channel, and the first side link feedback channel is used to carry data from a first side link feedback channel.
  • the first hybrid automatic repeat request message of the fifth terminal device obtaining the first transmission resource of the second side link feedback channel, and the second side link feedback channel is used to carry the second hybrid automatic repeat sent to the sixth terminal device
  • the first sending resource is indicated by the location information of the first sending resource of the third sharing indication information type; when the first receiving resource and the first sending resource overlap, according to the location information of the first sending resource and/ or priority information, receiving the first side link feedback channel or sending the second side link feedback channel.
  • the terminal device can formulate a communication strategy at the position of the conflicting resource whether to receive the first side link feedback channel or to send the second side link feedback channel. Ensure normal communication of terminal equipment.
  • receiving the first side link feedback channel or sending the second side link feedback channel according to the location information and/or priority information of the first transmission resource includes: according to the location information of the first transmission resource, The second sidelink feedback channel is sent on the first sending resource.
  • sending the second side link feedback channel on the first sending resource according to the location information of the first sending resource includes: sending the second side link feedback channel on the first sending resource, and the first sending The location information of the resource is used to indicate the absolute location information of the first sending resource.
  • the terminal device location giving priority to sending the second side link feedback channel at the first sending resource, which can prioritize the normal use of channel occupied time resources, thereby improving the transmission efficiency of unlicensed spectrum and ensuring normal communication of terminal equipment.
  • sending the second side link feedback channel according to the location information of the first transmission resource includes: the location information of the first transmission resource is also used to indicate the location of the first transmission resource in the third channel occupancy time resource. position; if the first sending resource is not at the last time domain position of the third channel occupied time resource, then the second side link feedback channel is sent on the first sending resource.
  • the terminal device when the resource overlap position is not at the last time domain resource position within the third channel occupancy time resource, the terminal device preferentially sends the second side link feedback at the first transmission resource within the third channel occupancy time resource.
  • Channels can prioritize the normal use of channel occupied time resources, thereby improving the transmission efficiency of unlicensed spectrum and ensuring normal communication of terminal equipment.
  • receiving the first side link feedback channel or sending the second side link feedback channel according to the location information and/or priority information of the first sending resource includes: according to the location information and/or priority information of the first sending resource. Priority information, receiving the first side link feedback channel or sending the second side link feedback channel.
  • receiving the first side link feedback channel or sending the second side link feedback channel according to the location information and priority information of the first sending resource includes: the location information of the first sending resource is also used to indicate The position of the first transmission resource in the third channel occupancy time resource; if the first transmission resource is at the last time domain position of the third channel occupancy time resource, then according to the priority information, receive the first side link feedback channel or send The second side link feedback channel, where the priority information includes the value of the channel access priority corresponding to the first side link feedback channel and the second side link feedback channel, or the priority information includes the first side link feedback channel The value of the data priority corresponding to the channel and the second side link feedback channel.
  • the terminal device can give a more appropriate communication strategy by comparing the fourth priority value and the fifth priority value.
  • receiving the first side link feedback channel or sending the second side link feedback channel according to the priority information includes: if the fourth priority value is less than or equal to the fifth priority value, in the first sending The second side link feedback channel is sent on the resource; where the fourth priority value is used to indicate the channel access priority corresponding to the second side link feedback channel, and the fifth priority value is used to indicate the first side link feedback channel The channel access priority corresponding to the channel; or, the fourth priority value is used to indicate the data priority value corresponding to the second side link feedback channel, and the fifth priority value is used to indicate the data priority value corresponding to the first side link feedback channel. Data priority value.
  • receiving the first side link feedback channel or sending the second side link feedback channel according to the priority information includes: if the fourth priority value is greater than the fifth priority value, on the first receiving resource Receive the first side link feedback channel; wherein the fourth priority value is used to indicate the channel access priority corresponding to the second side link feedback channel, and the fifth priority value is used to indicate the corresponding channel access priority of the first side link feedback channel channel access priority; or, the fourth priority value is used to indicate the data priority value corresponding to the second side link feedback channel, and the fifth priority value is used to indicate the data priority value corresponding to the first side link feedback channel level value.
  • a communication device is provided.
  • the device is a first terminal device.
  • the device includes a transceiver unit: the transceiver unit is configured to receive first information from a second terminal device, where the first information includes a first priority value.
  • the first priority value is used to indicate the priority of the data corresponding to the first information;
  • the first sharing instruction information is sent to the second terminal device, and the first sharing instruction information is used to indicate the first shared resource to the second terminal device,
  • the second priority value is greater than or equal to the first priority value, and the second priority value is used to indicate the priority corresponding to the first channel occupancy time resource, and the first channel occupancy time resource includes the first shared resource.
  • the device further includes a processing unit: the processing unit is configured to determine the first channel occupancy time resource according to the first priority value.
  • the transceiver unit is further configured to receive second information from the third terminal device, where the second information includes a third priority value, and the third priority value is used to indicate the priority of the data corresponding to the second information. level; the processing unit is specifically configured to determine the first channel occupancy time resource according to the first priority value and the third priority value.
  • the root processing unit is specifically configured to seize the first channel occupied time resource according to the largest priority value in the first set, where the first set includes the first priority value, the third priority value and the third priority value.
  • the priority value corresponding to the data sent by a terminal device, or the first set includes a first priority value and a third priority value, and the second priority value is the largest priority value.
  • the processing unit is specifically configured to determine the second terminal device as the sharing object corresponding to the first channel occupied time resource according to the first priority value, and the second priority value is the data sent by the first terminal device. The corresponding priority value.
  • the first sharing indication information includes the location of the first shared resource and/or the type of detect-before-send LBT at the location of the first shared resource.
  • the first sharing indication information also includes a second priority value.
  • the processing unit is specifically configured to determine that the second terminal device occupies time resources for the first channel based on the first channel occupancy time resource, the location of the first reserved resource, and the location of the second reserved resource. Sharing object, wherein the first information also includes the location of the first reserved resource, and the second information also includes the location of the second reserved resource.
  • the first shared resources are part or all of the first reserved resources that meet the first COT resource sharing condition, where the first COT resource sharing condition includes the first reserved resource and the second reserved resource.
  • the time interval between resource blocks corresponding to the resources complies with the Type 2 time interval of LBT, the first COT resource covers part or all of the corresponding resource blocks of the first reserved resource, and the data priority value corresponding to the first information-related data It is less than or equal to the data priority value corresponding to the data sent by the first terminal device.
  • a communication device which is a second terminal device.
  • the device includes a transceiver unit: the transceiver unit is used to receive second sharing instruction information, and the second sharing instruction is used to instruct the second terminal device to obtain The second sharing resource, the second sharing indication information includes a target channel access priority value, the target channel access priority value is used to indicate the channel access priority corresponding to the second channel occupancy time resource, and the second channel occupancy time resource includes The second shared resource: sends the first data on the second shared resource according to the target channel access priority value.
  • the channel access priority value corresponding to the first data is less than or equal to the target channel access priority value.
  • the device further includes a processing unit: the processing unit is configured to, when the second shared resource is used for initial transmission, package data according to the target channel access priority value to obtain the first data; a transceiver unit It is also used to send the first data on the second shared resource.
  • the transceiver unit is also configured to: when the second shared resource is used for retransmission, if the channel access priority value corresponding to the initially transmitted data is less than or equal to the target channel access priority value, then in the first The first data is sent on the second shared resource, where the first data is the initial transmission data.
  • the processing unit when the second shared resource is used for retransmission, if the channel access priority value corresponding to the initially transmitted data is greater than the target channel access priority value, then the processing unit is configured to access the target channel according to the target channel access priority value.
  • the priority value packages the data to obtain the first data; the transceiver unit is also used to send the first data on the second shared resource.
  • a communication device which is a fourth terminal device.
  • the device includes a transceiver unit and a processing unit: the processing unit is used to obtain the first receiving resource of the first side link feedback channel, the first side The link feedback channel is used to carry the first hybrid automatic repeat request message from the fifth terminal device; the processing unit is used to obtain the first transmission resource of the second side link feedback channel, and the second side link feedback channel is used to Carrying the second hybrid automatic repeat request message sent to the sixth terminal device, the first sending resource is indicated by the location information of the first sending resource of the third sharing indication information type; when the first receiving resource and the first sending resource When overlap occurs, the transceiver unit is configured to receive the first side link feedback channel or send the second side link feedback channel according to the location information and/or priority information of the first transmission resource.
  • the transceiver unit is configured to send the second side link feedback channel on the first transmission resource according to the location information of the first transmission resource.
  • the transceiver unit is specifically configured to send the second side link feedback channel on the first transmission resource, and the location information of the first transmission resource is used to indicate the absolute location information of the first transmission resource.
  • the transceiver unit is specifically configured to: the location information of the first transmission resource is also used to indicate the location of the first transmission resource in the third channel occupancy time resource; if the first transmission resource is not in the third channel occupancy time The last time domain position of the time resource, then the second side link feedback channel is sent on the first sending resource.
  • the transceiver unit is configured to receive the first side link feedback channel or send the second side link feedback channel according to the location information and priority information of the first transmission resource.
  • the transceiver unit is specifically configured to: the location information of the first transmission resource is also used to indicate the location of the first transmission resource in the third channel occupancy time resource; if the first transmission resource is in the third channel occupancy time The last time domain position of the resource, then according to the priority information, receive the first side link feedback channel or send the second side link feedback channel, where the priority information includes the first side link feedback channel and the second side link The value of the channel access priority corresponding to the channel feedback channel, or the priority information includes the first side chain The value of the data priority corresponding to the side link feedback channel and the second side link feedback channel.
  • the transceiver unit is specifically configured to, if the fourth priority value is less than or equal to the fifth priority value, send the second side link feedback channel on the first transmission resource; wherein, the fourth priority value It is used to indicate the channel access priority corresponding to the second side link feedback channel, and the fifth priority value is used to indicate the channel access priority corresponding to the first side link feedback channel; or, the fourth priority value is used to indicate Indicates the data priority value corresponding to the second side link feedback channel, and the fifth priority value is used to indicate the data priority value corresponding to the first side link feedback channel.
  • the transceiver unit is specifically configured to, if the fourth priority value is greater than the fifth priority value, receive the first side link feedback channel on the first receiving resource; wherein the fourth priority value is used to Indicates the channel access priority corresponding to the second side link feedback channel, and the fifth priority value is used to indicate the channel access priority corresponding to the first side link feedback channel; or, the fourth priority value is used to indicate the channel access priority corresponding to the first side link feedback channel; or, the fourth priority value is used to indicate the channel access priority corresponding to the first side link feedback channel.
  • the data priority value corresponding to the second-side link feedback channel, and the fifth priority value is used to indicate the data priority value corresponding to the first-side link feedback channel.
  • the communication device of the fourth aspect, the communication device of the fifth aspect, and the communication device of the sixth aspect are devices.
  • the transceiver unit may be a transceiver, or an input/output interface;
  • the processing unit may be at least one processor.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the communication device of the fourth aspect, the communication device of the fifth aspect and the communication device of the sixth aspect are chips, chip systems or circuits for devices.
  • the transceiver unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip, chip system or circuit;
  • the processing unit may be at least one processor, processing circuit or logic circuit, etc.
  • a seventh aspect provides a communication device, which includes: at least one processor for executing computer programs or instructions stored in a memory to execute the method in any of the possible implementations of the first to third aspects.
  • the device further includes a memory for storing computer programs or instructions.
  • the device further includes a communication interface, through which the processor reads the computer program or instructions stored in the memory.
  • the device is a device (such as a first terminal device, a second terminal device, or a fourth terminal device).
  • the device is a chip, a chip system or a circuit for a device (such as a first terminal device, a second terminal device or a fourth terminal device).
  • this application provides a processor for executing the methods provided in the above aspects.
  • processor output, reception, input and other operations can be understood as processor output, reception, input and other operations.
  • transmitting and receiving operations performed by the radio frequency circuit and the antenna, which is not limited in this application.
  • a computer-readable storage medium stores a program code for device execution.
  • the program code includes a method for executing any of the possible implementations of the above-mentioned first to third aspects. method.
  • a computer program product containing instructions is provided.
  • the computer program product When the computer program product is run on a computer, it causes the computer to execute the method in any of the possible implementation modes of the first to third aspects.
  • An eleventh aspect provides a communication system, including the communication device in any possible implementation of the fourth aspect, or the communication device in any possible implementation of the fifth aspect, or the sixth aspect. Communication device in any possible implementation manner.
  • a chip including a processor, which is used to call and run a computer program from a memory, so that a communication device equipped with the chip can perform any of the above-mentioned first to third aspects. Methods in the implementation.
  • Figure 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • Figure 2 is a schematic diagram of a communication scenario provided by an embodiment of the present application.
  • Figure 3 is a schematic flow chart of a communication method provided by an embodiment of the present application.
  • Figure 4 is an interaction diagram of a communication method provided by an embodiment of the present application.
  • Figure 5 is a schematic diagram of a first reserved resource provided by an embodiment of the present application.
  • Figure 6 is a schematic diagram of the location of shared resources on COT resources corresponding to a terminal device that meets the sharing conditions provided by an embodiment of the present application;
  • Figure 7 is an interaction diagram of another communication method provided by an embodiment of the present application.
  • Figure 8 is a schematic flow chart of another communication method provided by an embodiment of the present application.
  • Figure 9 is an interaction diagram of yet another communication method provided by an embodiment of the present application.
  • Figure 10 is a schematic diagram of another communication scenario provided by an embodiment of the present application.
  • Figure 11 is a schematic flow chart of another communication method provided by an embodiment of the present application.
  • Figure 12 is an interaction diagram of yet another communication method provided by an embodiment of the present application.
  • Figure 13 is a schematic diagram of a communication method device 1300 provided by an embodiment of the present application.
  • Figure 14 is a schematic diagram of another communication device 1400 provided by an embodiment of the present application.
  • FIG. 15 is a schematic diagram of a chip system 1500 provided by an embodiment of the present application.
  • "instruction” may include direct instruction and indirect instruction, and may also include explicit instruction and implicit instruction.
  • the information indicated by a certain message (such as the first request message described below) is called information to be indicated.
  • information to be indicated In the specific implementation process, there are many ways to indicate the information to be indicated.
  • direct indication can be The information to be indicated, such as the information to be indicated itself or the index of the information to be indicated, etc.
  • the information to be indicated may also be indirectly indicated by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance.
  • the indication of specific information can also be achieved by means of a pre-agreed (for example, protocol stipulated) arrangement order of each piece of information, thereby reducing the indication overhead to a certain extent.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA broadband code division multiple access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a scenario of communication between devices.
  • the communication interface between the terminal device 121 and the network device 110 such as the Uu interface
  • the terminal device 110 such as the terminal device 110.
  • Communication interface between 121 and terminal device 122 (such as PC5 interface).
  • the Uu interface is used for communication between user equipment and base stations or roadside units
  • the PC5 interface is used for side link communication between terminals.
  • the link on the Uu interface through which the terminal sends data to the base station is called an uplink, and the link through which the terminal receives data sent from the base station is called a downlink.
  • the communication interface between terminals is called PC5 interface.
  • the link between the terminal and the terminal that transmits data on the PC5 interface is called a sidelink or a direct link.
  • Sidelinks are generally used in device-to-device (D2D) scenarios where direct communication can be performed between devices. In this scenario, data transmission between devices does not need to go through the base station.
  • V2X Vehicle to everything
  • Terminal equipment It can also be called user equipment (UE), access terminal, 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.
  • UE user equipment
  • the terminal device may be a device that provides voice/data connectivity to the user, such as a handheld device, a vehicle-mounted device, etc. with wireless connectivity capabilities.
  • some examples of terminals are: mobile phones, tablets, laptops, PDAs, Mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control (industrial control), driverless ( Wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, wireless terminals in transportation safety, and smart cities Wireless terminals, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants ( personal digital assistant (PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or future evolved public land mobile communication networks ( Terminal equipment in a public land mobile network (PLMN), etc., the embodiments of the present application are not limited
  • the terminal device can also be a terminal device in the Internet of things (IoT) system.
  • IoT Internet of things
  • Its main technical feature is to connect items with the network through communication technology. Connect, thereby realizing an intelligent network of human-computer interconnection and physical-object interconnection.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes, etc.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Broadly defined wearable smart devices include full-featured, large-sized devices that can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, and those that only focus on a certain type of application function and need to cooperate with other devices such as smartphones.
  • the V2X communication system is a special manifestation of the IoT communication system in transportation scenarios.
  • the V2X communication system provides vehicle information through sensors, vehicle-mounted terminals, etc. mounted on the vehicle, and uses various communications to Technology enables mutual communication between vehicles and vehicles, vehicles and people, vehicles and roadside infrastructure, and vehicles and networks.
  • the terminal device may be a vehicle terminal.
  • Network equipment It can be a device used to communicate with terminal equipment.
  • the network equipment can be a base station in the Global System of Mobile communication (GSM) system or Code Division Multiple Access (CDMA). (Base Transceiver Station, BTS), or the base station (NodeB, NB) in the Wideband Code Division Multiple Access (WCDMA) system, or the evolutionary base station (Evolutional NodeB, eNB) in the LTE system or eNodeB), or it can be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the network device can be a relay station, access point, vehicle-mounted device, wearable device, and future 5G network Network equipment or network equipment in a future evolved PLMN network, etc., are not limited by the embodiments of this application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • BTS Base Transceiver Station
  • NodeB, NB Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • RRC radio resource control
  • DRB data radio bearer
  • SRB signaling radio bearer
  • a wireless bearer includes a packet data convergence protocol (PDCP) entity and a radio link control (RLC) bearer.
  • PDCP packet data convergence protocol
  • RLC radio link control
  • an RLC bearer includes an RLC entity and the corresponding logical channel (Logical Channel, LCH).
  • the configuration of the radio bearer is the configuration of the PDCP entity, RLC entity and logical channel of the radio bearer.
  • the configuration of the wireless bearer needs to be able to ensure the quality of service (QoS) requirements of the services transmitted through the wireless bearer.
  • QoS quality of service
  • the wireless bearer configuration is configured by the network device for the terminal.
  • the Uu interface communication in V2X communication is that the sender's terminal device sends V2X data to the base station through the Uu interface, and then the base station sends it to the V2X application server for processing, and then the processing result data is issued by the V2X application server.
  • the base station that sends V2X data to the V2X application server and the base station that receives the processing result data and forwards the results to the terminal device can be the same base station or different base stations, and the details can be determined by the V2X application server.
  • the wireless bearer on the PC5 port can be called a sidelink radio bearer (SL RB).
  • SL RB sidelink radio bearer
  • LTE long term evolution
  • the wireless bearer on the PC5 port is established by the sending terminal and the receiving terminal respectively.
  • the configuration of the wireless bearer is predefined by the standard or determined by the sending terminal and the receiving terminal. .
  • PC5 interface communication in V2X communication is a direct communication method between terminal devices.
  • This direct communication link may be called a sidelink or sidelink (SL).
  • Authorized spectrum is a spectrum resource that countries allocate to operators in that country in accordance with international rules and their own plans. Each operator pays a license fee for the exclusive rights to the spectrum resources. Each operator has the absolute right to use the resources allocated to itself. Service requirements for coverage, spectrum efficiency and reliability can be met.
  • New radio unlicensed spectrum is a 5G technology that operates in unlicensed spectrum.
  • the basic design is based on the new radio (NR-U) design and combines the regulatory requirements in the unlicensed frequency band.
  • LBT mechanism In order to use unlicensed spectrum fairly, terminal equipment and network equipment need the LBT channel detection mechanism to compete for resources using unlicensed spectrum before sending data.
  • LBT mechanism when a communication device sends a signal (for example, a data signal or a control signal) on a certain channel, it can first detect whether the channel is idle. If the channel is idle, the communication device can send a signal on the channel. If the channel is not idle, the communication device cannot send signals on the channel. This detection process can be called clear channel assessment (clear channel assessment, CCA) or channel access process.
  • CCA clear channel assessment
  • LBT is generally performed at channel granularity, for example, 20MHz.
  • the LBT mechanism allows multiple users to share a channel. There are two results during the execution of the LBT mechanism, one is LBT success (that is, the channel access process is completed), and the other is LBT failure (that is, the channel access process is not completed).
  • Communication equipment will use the LBT mechanism to continuously detect the channel for a period of time. When the communication device finds that the channel value is occupied within a specified period of time, it will fail to send the LBT.
  • Type 1 LBT there are two types of LBT, the first is Type 1 LBT, and the second is Type 2 LBT.
  • the Type 1 LBT channel access process can be: energy detection based on the backoff mechanism. For a certain bandwidth, a window is defined. The window defines the range of the number of time slots detected. The communication device starts from this window (or value range). ), randomly select a value A. After the communication device detects at least A idle energy detection time slots, the channel is considered idle, so the communication device can use the idle channel to transmit data; otherwise, the channel is considered busy, and communication The device does not use this busy channel to transmit data.
  • idle energy detection means that the signal energy received within a fixed period of time is less than or equal to the preset threshold.
  • the LBT backoff process completes the detection and determines that the channel is idle, if the data is not ready for transmission, you need to wait for the data to be transmitted. Before data transmission, the physical layer also needs to detect an additional sensing time slot of the channel. If the detection result of this sensing time slot is also idle, the data will be sent directly to the air interface. That is to say, the LBT process actually has two stages. The first stage performs the backoff process and the second stage performs the detection channel of a sensing time slot. When both stages are idle, data can be sent out.
  • the Type 2 type LBT channel access process can have three types of LBT, namely Type 2A, Type 2B and Type 2C. If the time domain interval between the preceding and following resources is at least 25us, the network device instructs the terminal device to perform Type 2A LBT, that is, the terminal device needs to sense that the channel is idle for at least 25us before it can access the unlicensed spectrum channel. If the time domain interval between the preceding and following resources is equal to 16us, the network device instructs the terminal device to perform Type 2B LBT, that is, the terminal device needs to sense that the channel is idle for at least 16us before it can access the channel of the unlicensed spectrum. If the time domain interval between the preceding and following resources is less than 16us, the network device instructs the terminal device to perform Type 2C LBT, that is, the terminal device directly uses the channel of the unlicensed spectrum.
  • Type 2A LBT that is, the terminal device needs to sense that the channel is idle for at least 25us before it can access the unlicensed spectrum channel.
  • the transmitter of the communication device will wait for the competition window and then execute the LBT mechanism again.
  • the size of the window condition of the communication device competition window can be adjusted based on CAPC. If the CAPC corresponding to the data that the communication device needs to transmit is high, the communication device can use a shorter condition window to obtain more channel opportunities to transmit information. Among them, the higher the CAPC, the smaller the corresponding value of CAPC. In order to unify the description of the full text, the "priority value" is used below to reflect CAPC.
  • the priority value is associated with a quality of service class identifier (QCI), which identifies which quality of service class the service to be sent belongs to.
  • QCI quality of service class identifier
  • a terminal device may receive a configured grant from a base station for uplink transmission on multiple logical channels of the data connection, where the logical channel determines the type of data transmitted and each logical channel is assigned There is a priority value.
  • the terminal device can form a transmission block (TB) for uplink transmission by multiplexing data on multiple logical channels, where, The priority value may be determined based on the multiplexed logical channel, that is, the priority value may be determined based on the multiplexed data.
  • the end device can perform the LBT process using a set of LBT parameters associated with the priority value.
  • the priority value can be determined by referring to the following process.
  • the priority values of radio bearers and media access control element (MAC CE) are fixed or configurable.
  • BSR padding buffer status report
  • MAC CE media access control element
  • the CAPC is fixed to the lowest (for example, the priority value is 4).
  • SRB signaling radio bearer
  • DRB data radio bearers
  • the 3GPP protocol maps the 5QI value and the priority value, that is, the priority value is determined through the 5QI value in the DRBS data. As shown in Table 1.
  • the terminal device When the terminal device performs Type 1 LBT and the priority value corresponding to the uplink TB transmission is not given with downlink control information (DCI), the following principles are used to determine the priority value of the TB:
  • DCI downlink control information
  • the MAC layer of the terminal device When the MAC layer of the terminal device assembles the transmission block and implements the Type 1 LBT process for the transmission of the transmission block, it needs to specify a priority value for the data block.
  • the LBT process will execute the LBT process according to this priority value.
  • the priority value is determined as follows:
  • the highest corresponding CAPC value of these MAC CEs will be used as the priority value of the transport block
  • CCCH SDU common control channel service data unit
  • DCCH SDU dedicated control channel service data units
  • the value corresponding to the lowest CAPC in the media access control service data unit (MAC SDU) generated by the logical channel is used as the priority value of the transmission block.
  • COT is a period of channel usage time obtained by communication equipment through the LBT mechanism.
  • the communication device can occupy the COT itself to transmit data signals or control signals, or it can share the COT with other communication devices so that other communication devices can transmit data signals or control signals on the COT.
  • the communication device that preempts the COT can share the information of the COT (for example, the starting time of the COT, the time length of the COT, and the frame format information of the COT, etc.) with other communication devices.
  • the information of the COT for example, the starting time of the COT, the time length of the COT, and the frame format information of the COT, etc.
  • the sharing source terminal device preempts a COT based on the CAPC level corresponding to the data it sends, and then determines which COT will be preempted based on the location of the resource information reserved by other terminal devices and the priority of the data indicated in the SCI sent by the other terminal device.
  • the corresponding resources in the COT resources are shared to the target terminal devices that meet the sharing conditions.
  • the sharing conditions represent the continuity of the reserved resources of the target terminal device within the COT resource, the reserved resources of the target terminal device are covered in the COT resource in the time domain, and the data priority of the target terminal device is greater than or equal to the sharing source terminal.
  • the data priority corresponding to the device The so-called continuity means that the time intervals between resource blocks corresponding to different reserved resources from different terminal devices comply with the LBT Type 2 time interval.
  • Figure 2 is a schematic diagram of a communication scenario provided by an embodiment of the present application.
  • the target terminal device (for example, the second terminal device or the third terminal device) sends the side link to the sharing source terminal device (for example, the first terminal device).
  • Sidelink control information (SCI) shares the source terminal device with the target terminal device to share the corresponding shared resources in the COT resource. If the channel access priority corresponding to the data sent by the target terminal device on the shared resource is lower than the channel access priority used to preempt the COT resource, then the target terminal device cannot normally use the shared resource on the COT resource. This will result in insufficient utilization of the unlicensed spectrum during the period of preempted COT resources, thereby reducing the transmission efficiency of the unlicensed spectrum.
  • Figure 3 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • the first terminal device receives the first information from the second terminal device, where the first information includes a first priority value, and the first priority value is used to indicate the priority of data corresponding to the first information.
  • the first information may be side link control information, or other information carrying a first priority value.
  • the first priority value may be the channel access priority value corresponding to the data corresponding to the first information, or the priority value of the data itself corresponding to the first information. If the first priority value is a channel access priority value, then the first priority value is used to indicate the channel access priority corresponding to the data corresponding to the first information. If the first priority value is a data priority value, the first priority value is used to indicate the data priority corresponding to the data corresponding to the first information.
  • the first priority value can also be understood as the priority value corresponding to the first reserved resource indicated by the first information, and the second terminal device can perform initial transmission or retransmission of data on the first reserved resource.
  • S320 receive second information from a third terminal device, where the second information includes a third priority value, and the third priority value is used for the priority of data corresponding to the second information.
  • the first terminal device determines the first COT resource according to the first priority value.
  • the first COT resource is determined according to the first priority value and the third priority value.
  • the first channel occupancy time resource is preempted according to the largest priority value in the first set.
  • the first set includes the first priority value, the third priority value and the priority value corresponding to the data sent by the first terminal device. , or the first set includes a first priority value and a third priority value, and the second priority value is the largest priority value.
  • the second terminal device is determined to be the sharing object corresponding to the first channel occupied time resource, and the second priority value is the priority value corresponding to the data sent by the first terminal device. .
  • the first terminal device determines the first sharing instruction information.
  • the first terminal device sends first sharing instruction information to the second terminal device, where the first sharing instruction information is used to indicate the first shared resource to the second terminal device, and the second priority value is greater than or equal to the first priority.
  • the level value and the second priority value are used to indicate the priority corresponding to the first COT resource, and the first COT resource includes the first shared resource.
  • the second priority value can also be understood as the first terminal device using the second priority value to preempt the obtained first COT resource.
  • the second terminal device sends fourth data according to the first sharing instruction information, where the priority value corresponding to the fourth data is less than or equal to the second priority value.
  • the priority value of the resource indicated in the indication information is greater than or equal to the priority value corresponding to other terminal devices, there is Helps ensure that other terminal devices use the shared resources in the COT shared resources obtained normally, thereby improving the transmission efficiency of unlicensed spectrum.
  • Figure 4 is an interaction diagram of a communication method provided by an embodiment of the present application.
  • the priority value in Figure 4 is the channel access priority value.
  • the CAPC value is used below to represent the channel access priority value.
  • Figure 4 takes the first information as side link control information as an example for illustration. The embodiment of the present application does not limit the information carrying the priority value.
  • the second terminal device determines the location of the first reserved resource.
  • the second terminal device when the working mode of the second terminal device to obtain side link resources is the second mode (for example, Mode 2), the second terminal device obtains the side link resource pool configuration, and obtains the side link resource pool configuration from the side link resource. Select the location of the first reserved resource in the pool configuration.
  • the selection method can be random selection or selection based on monitoring results.
  • the second terminal device receives the side link resource pool configuration from the base station, or the second terminal device obtains the side link resource pool configuration from the preconfiguration.
  • the media access control (MAC) entity of the second terminal device when configured by the upper layer to obtain resources in the second mode (for example, Mode 2), the second terminal device will obtain resources in the configured mode. Obtain resources from the resource pool through resource sensing and resource selection.
  • the media access control (MAC) entity of the second terminal device when configured by the upper layer to obtain resources in the second mode (for example, Mode 2), the second terminal device will obtain resources in the configured mode. Obtain resources from the resource pool through resource sensing and resource selection.
  • the second terminal device obtains the location information of the reserved resources through sensing. These reserved resources are characterized by periodicity in time.
  • the resource reservation period size is P rsvp_TX and the number of these resources is determined by the periodicity.
  • the configuration parameter side-link resource of the resource period is The value in the source reservation period (SL-ResourceReservePeriod) is P rsvp_TX .
  • the MAC layer will select a number between [5,15] as the number of reserved resources.
  • the MAC layer When the value of P rsvp_TX is less than 100ms, the MAC layer will choose a number among them as the number of resource reservations. These reserved resources are used for initial transmission of data.
  • the first SCI of the second terminal device When sending data, the first SCI of the second terminal device will contain a resource reservation period field. This field is the side link high-level configuration parameter side link resource reservation period table (sl-ResourceReservePeriodList). A resource reservation period in .
  • the second terminal device will carry SCI information when sending data.
  • This SCI information will contain a time resource assignment (Time resource assignment) field, indicating the corresponding resource location for retransmission of the sent data.
  • MaxNumPerReserve When the high-level parameter maximum number of reserved resources (MaxNumPerReserve) is configured as 2, it means that the second terminal device will also allocate a reserved resource for an initial transmission resource. This reserved resource is used by the second terminal device after the initial transmission. Retransmission during hybrid automatic repeat request negative acknowledgment (HARQ NACK) or discontinuous transmission (discontinuous transmission, DTX).
  • HARQ NACK hybrid automatic repeat request negative acknowledgment
  • DTX discontinuous transmission
  • the maximum number of reserved resources for high-level parameters When the maximum number of reserved resources for high-level parameters is configured as 3, it means that the second terminal device will allocate two resources for one initial transmission resource. These two resources are used when the second terminal device receives HARQ NAKC or DTX after the initial transmission. retransmission.
  • Figure 5 is a schematic diagram of a first reserved resource provided by an embodiment of the present application.
  • the second terminal device determines the first reserved resource in the above manner, where the first reserved resource includes at least one first reserved resource block.
  • the intervals between the first reserved resource blocks in the time domain may be equal or unequal.
  • Figure 5 is only for illustrative purposes and does not limit this.
  • the number of time slots occupied by each first reserved resource block in the first reserved resource in the time domain may be one or more, and the number of time slots corresponding to each first reserved resource block may be the same or different. , the embodiment of the present application does not limit this.
  • the second terminal device sends the first SCI to the first terminal device, and the first terminal device receives the first SCI from the second terminal device, where the first SCI includes the first CAPC value and the location of the first reserved resource,
  • the first CAPC value is used to indicate the channel access priority of data corresponding to the first SCI.
  • the first CAPC value can also be understood as the CAPC value of the first reserved resource indicated by the first SCI.
  • the first reserved resource can be used for retransmission or initial transmission of data, and this embodiment of the present application does not limit this.
  • the first CAPC value is determined based on the third data corresponding to the first SCI.
  • the specific determination process please refer to the "channel access priority" in the previous explanation of terms.
  • the third terminal device determines the location of the second reserved resource.
  • the third terminal device determines the location of the second reserved resource may refer to S401.
  • the embodiment of the present application does not limit the execution order of S401 and S403.
  • the third terminal device sends a second SCI to the first terminal device, where the second SCI includes a third CAPC value and the location of the second reserved resource.
  • the third CAPC value is used to indicate the channel of data corresponding to the second SCI. Access priority.
  • S404 may refer to S402.
  • the embodiment of the present application does not limit the execution order of S402 and S404.
  • the first terminal device seizes the first COT resource based on the largest CAPC value in the first set, where the first set includes the first CAPC value, the third CAPC value and the CAPC value corresponding to the data sent by the first terminal device, Or the first set includes a first CAPC value and a third CAPC value.
  • the first set includes the first CAPC value, the third CAPC value and the CAPC value corresponding to the data sent by the first terminal device.
  • the maximum CAPC value is the CAPC value corresponding to the data sent by the first terminal device
  • the channel access priority corresponding to the data sent by the first terminal device is the lowest in the set, and other terminal devices can use it normally.
  • the first COT resource If the maximum CAPC value is not the CAPC value corresponding to the data sent by the first terminal device, then the channel access priority corresponding to the data sent by the first terminal device is higher than the channel access priority corresponding to the first COT resource. , while the first terminal device can use the first COT resource normally, other terminal devices can also use it normally. This first COT resource is often used.
  • the first set includes the first CAPC value and the third CAPC value.
  • the first terminal device obtains the CAPC value corresponding to the data sent by the first terminal device, and specifically determines The process of CAPC value can refer to the previous article. It should be noted that the embodiments of the present application do not limit the destination of the data sent by the first terminal device. The destination may be the second terminal device or other terminal devices.
  • the first terminal device uses the largest CAPC value in the first set to monitor the channel through the Type 1 LBT, thereby seizing the first COT resource.
  • the first terminal device can share the preempted first COT resource with other terminal devices to send data.
  • the data sent by other terminal devices through sharing the first COT resource can be sent to the first terminal device or to other terminal devices, and the embodiment of the present application does not limit this.
  • the first terminal device can also share the first COT resource with other terminal devices.
  • the embodiment of this application does not limit the number of terminal devices receiving CAPC values from the first terminal device. If the first terminal device shares the first COT resource with other terminal devices, When the first COT resource is used, the first set includes the CAPC values sent by other terminal devices to the first terminal device, and the first terminal device will obtain the SCI sent by other terminal devices.
  • the first set may include the first CAPC value, or may include the first CAPC value and the CAPC value corresponding to the data sent by the first terminal device.
  • the first terminal device determines whether the second terminal device is a sharing object of the first COT resource.
  • the first reserved resource includes At least one first reserved resource block.
  • the second terminal device is determined to be the sharing object of the first COT resource, where the sharing condition is the resource block corresponding to different reserved resources.
  • the time interval between each other conforms to the Type 2 time interval of LBT, and the first COT resource covers part or all of the resource blocks corresponding to different reserved resources.
  • the data priority value corresponding to the first SCI related data also needs to be less than Or equal to the data priority value corresponding to the data sent by the first terminal device.
  • the time interval of Type2 of LBT for example, the time interval for Type2A can be [16us, 25us], the time interval for Type2B can be 16us, and the time interval for Type2C can also be (0s, 16us].
  • the first terminal device can also share the first COT resource with other terminal devices. At this time, the first terminal device also needs to determine whether the other terminal devices are the sharing objects of the first COT resource. At this time, the other terminal devices correspond to The positions of the reserved resource blocks need to meet the sharing conditions of the first COT resource.
  • the first terminal device can also determine whether the third terminal device is a sharing object of the first COT resource through the above method. For the sake of brevity, no further details will be given here.
  • FIG. 6 is a schematic diagram of the location of the first shared resource on the COT resource corresponding to a terminal device that meets the sharing conditions provided by an embodiment of the present application.
  • resource block 1 is the resource block corresponding to the data sent by the first terminal device
  • resource block 2 and resource block 4 are the first shared resources shared with the second terminal device
  • resource block 3 is shared with the third terminal device.
  • the time intervals between resource block 1, resource block 2, resource block 3 and resource block 4 all conform to the time interval of Type 2 of LBT.
  • resource block 1, resource block 2, resource block 3 and resource block 4 are all covered in Within the first COT resource.
  • the first terminal device only needs to use the first reserved resource according to location and first COT resource to determine.
  • the first sharing indication information includes the location of the first shared resource and/or the type of LBT at the location of the first shared resource.
  • the second CAPC value is the CAPC value used by the first terminal device when seizing the first COT resource, which is the maximum CAPC value in S405.
  • the first shared resource is a resource in at least one first reserved resource block that satisfies the sharing condition of the first COT resource, for example, resource block 2 and resource block 4 in Figure 6 .
  • the LBT type at the location of the first shared resource may be any one of LBT Type 2A, LBT Type 2B, and LBT Type 2C.
  • the first sharing indication information may also include a second CAPC value.
  • the third terminal device is also the sharing object of the first COT resource, it is also necessary to determine the COT sharing instruction information.
  • the content of the COT sharing instruction information is similar to the first sharing instruction information. For the sake of simplicity, it will not be done here. Repeat.
  • the first terminal device sends the first sharing instruction information to the second terminal device, and the second terminal device receives the first sharing instruction information from the first terminal device.
  • the third terminal device is also a sharing object of the first COT resource, it also needs to send confirmed COT sharing instruction information.
  • S409 The second terminal device sends fourth data on the first shared resource according to the first sharing instruction information.
  • the fourth data can be packaged according to the second CAPC value in the first sharing indication information, and the fourth data can be sent on the first shared resource. data.
  • the fourth data can also be packaged according to the first CAPC value, and the fourth data can be sent on the first shared resource.
  • assembling the packet according to the first CAPC value can be understood to mean that when the MAC layer assembles the transport block, the CAPC value of the finally obtained data transport block is the first CAPC value.
  • the fourth data is directly sent on the second reserved resource.
  • the fourth data is the data corresponding to the first SCI, that is, the fourth data. is the third data.
  • the second terminal device can send the fourth data to the first terminal device or other terminal devices, and the destination of the fourth data depends on the fourth data itself, which is not limited in the embodiment of the present application.
  • the priority value in Figure 4 is the channel access priority value. If the priority value is the data priority value, then the first terminal device can use the data priority values of other terminal devices to To seize the first COT resource, please refer to Figure 4 for the specific process. Among them, the data priority value is used to indicate the priority of the data itself.
  • the first terminal device seizes the COT resource by learning the priority values of other terminal devices and selecting the largest priority value among them. Since the priority value used when seizing the COT resource is the largest, other terminal devices can normally use the shared resources in the COT resource after receiving the shared resources indicated by the sharing indication information, thereby improving the transmission efficiency of the unlicensed spectrum.
  • Figure 7 is an interaction diagram of another communication method provided by an embodiment of the present application.
  • the priority value in Figure 7 is the channel access priority value.
  • the CAPC value is used below to represent the channel access priority value.
  • Figure 4 takes the first information as side link control information as an example for illustration. The embodiment of the present application does not limit the information carrying the priority value.
  • the second terminal device determines the location of the first reserved resource.
  • the second terminal device sends the first SCI to the first terminal device, and the first terminal device receives the first SCI from the second terminal device, where the first SCI includes the first CAPC value and the location of the first reserved resource,
  • the first CAPC value is used to indicate the channel access priority of data corresponding to the first SCI.
  • the third terminal device determines the location of the second reserved resource.
  • the third terminal device sends the second SCI to the first terminal device, and the first terminal device receives the second SCI from the third terminal device, where the second SCI includes the third CAPC value and the location of the second reserved resource,
  • the third CAPC value is used to indicate the channel access priority of the data corresponding to the second SCI.
  • the first terminal device determines whether the second terminal device is a sharing object of the first COT resource.
  • the first COT resource is preempted according to the CAPC value corresponding to the data sent by the first terminal device, and there is no limit on the preemption timing of the first COT resource.
  • the first terminal device may have preempted the first COT resource before obtaining the CAPC value corresponding to the data sent by the other terminal device, or the first terminal device may have obtained the CAPC value corresponding to the data sent by the other terminal device.
  • the device can still seize the first COT resource based on the CAPC value corresponding to the data it sends.
  • the first terminal device can determine whether the second terminal device is a sharing object of the first COT resource from two aspects.
  • the first aspect is to determine by the location of the first reserved resource of the second terminal device; the second aspect is to compare the second terminal device with the first reserved resource.
  • a CAPC value is determined based on a CAPC value corresponding to the data sent by the first terminal device.
  • the first terminal device determines whether the second terminal device is a sharing object of the first COT resource based on the location of the first reserved resource, the location of the second reserved resource, and the first COT resource.
  • the specific judgment method is similar to S406. For details, please refer to the relevant description in S406.
  • the second terminal device is determined to be the sharing object of the first COT resource. If the CAPC value corresponding to the data sent by the first terminal device is less than the first CAPC value, then it is determined that the second terminal device is not a sharing object of the first COT resource.
  • the first terminal device can first screen out the terminal devices that meet the CAPC value conditions through the second judgment method, and then make the first judgment on these terminal devices that meet the CAPC value conditions. aspects of judgment. This ensures that other terminal devices can continuously use the first COT resource, thereby ensuring normal use of the first COT resource.
  • the first terminal device may first screen out terminal devices that meet the reserved resource locations through the first aspect of judgment, and then perform the second aspect of judgment on these terminal devices. If the reserved resource block corresponding to the terminal device filtered out by the judgment method of the second aspect is at the last continuous time domain position of the first COT resource, the terminal device shared with the first COT resource can also continuously use the first COT resource. .
  • the first terminal device determines the first sharing information, and the first sharing information includes the location of the first shared resource and the LBT at the location of the first shared resource. type.
  • the second CAPC value is the CAPC value corresponding to the data sent by the first terminal device.
  • the first shared resource is a resource in at least one first reserved resource block that satisfies the sharing condition of the first COT resource, for example, resource block 2 and resource block 4 in Figure 6 .
  • the LBT type at the location of the first shared resource may be any one of LBT Type 2A, LBT Type 2B, and LBT Type 2C.
  • the first sharing indication information may also include a second CAPC value.
  • the third terminal device is also the sharing object of the first COT resource, it is also necessary to determine the COT sharing instruction information.
  • the content of the COT sharing instruction information is similar to the first sharing instruction information. For the sake of simplicity, it will not be done here. Repeat.
  • the first terminal device sends the first sharing instruction information to the second terminal device, and the second terminal device receives the first sharing instruction information from the first terminal device.
  • the third terminal device is also a sharing object of the first COT resource, it also needs to send confirmed COT sharing instruction information.
  • S708 The second terminal device sends fourth data on the first shared resource according to the first sharing instruction information.
  • S708 is similar to S409, and reference can be made to S409 for related descriptions. For the sake of brevity, no further description will be given here.
  • the priority value in Figure 7 is the channel access priority value. If the priority value is the data priority value, then the first terminal device can use the data corresponding to the data sent by the first terminal device. Priority value to seize the first COT resource. Please refer to Figure 7 for the specific process. Among them, the data priority value is used to indicate the priority of the data itself.
  • the first terminal device preempts a COT resource through the priority value corresponding to the data sent by itself, because the first terminal device obtains the priority corresponding to other terminal devices (for example, the second terminal device) value, therefore, the first terminal device can determine the resource sharing object in the COT resource by comparing the priority values corresponding to other terminal devices and the priority values used to seize the COT resource. After receiving the shared resources indicated by the sharing instruction information, other terminal devices can normally use the shared resources in the COT resources, thereby improving the transmission efficiency of the unlicensed spectrum.
  • Figure 8 is a schematic flowchart of another communication method provided by an embodiment of the present application.
  • the first terminal device determines the second sharing instruction information.
  • the first terminal device sends second sharing indication information to the second terminal device.
  • the second sharing indication information is used to indicate the second sharing resource obtained by the second terminal device.
  • the second sharing indication information includes the target channel access priority value.
  • the target channel access priority value is used to indicate the channel access priority corresponding to the second channel occupancy time resource, and the second channel occupancy time resource includes the second shared resource.
  • S803 The second terminal device sends the first data on the second shared resource according to the target channel access priority value.
  • target CAPC value is used in Figure 9 to represent the target channel access priority value.
  • Figure 9 is an interaction diagram of yet another communication method provided by an embodiment of the present application.
  • the second terminal device determines the location of the third reserved resource.
  • the second terminal device sends third information to the first terminal device, and the first terminal device receives the third information from the second terminal device, where the third information includes the location of the third reserved resource.
  • the third information may be side link control information, or other information carrying the location of the third reserved resource, which is not limited in this embodiment of the present application.
  • the first terminal device determines whether the second terminal device is a sharing object of the second COT resource.
  • the second COT resource is preempted by the first terminal device according to the CAPC value corresponding to the sent data.
  • the second terminal device is determined based on the location of the third reserved resource of the second terminal device and the second COT resource, as well as the data priority value corresponding to the third SCI and the data priority value corresponding to the data sent by the first terminal device. Whether the resource is shared with the second COT resource is determined in a similar manner to S406. For details, please refer to the description in S406.
  • the first terminal device determines the second sharing instruction information, and the second sharing instruction information is used to indicate the second sharing resource obtained by the second terminal device.
  • the indication information includes the target CAPC value.
  • the target CAPC value is the CAPC value corresponding to the second data sent by the first terminal device.
  • the second sharing instruction information also includes the location of the second shared resource and/or the type of LBT at the location of the second shared resource.
  • the LBT type at the location of the first shared resource may be any one of LBT Type 2A, LBT Type 2B, and LBT Type 2C.
  • the second shared resource is at least one reserved resource block in the third reserved resource that meets the sharing conditions of the COT resource.
  • the conditions for sharing COT resources are that at least one resource block of the third reserved resource of the second terminal device has continuity in the second COT resource, and the third reserved resource of the second terminal device is covered by the second COT resource in the time domain.
  • the data priority value of the second data is less than or equal to the data priority value corresponding to the data sent by the first terminal device on the second COT resource.
  • the target CAPC value is used to indicate the channel access priority corresponding to the second COT resource.
  • S905 The first terminal device sends second sharing instruction information to the second terminal device, and the second terminal device receives the second sharing instruction information from the first terminal device.
  • S906 The second terminal device sends the first data on the second shared resource according to the second sharing instruction information.
  • the first data is sent on the second shared resource according to the target CAPC value.
  • the CAPC value corresponding to the first data is less than or equal to the target CAPC value.
  • packets are grouped according to the target CAPC value to determine the first data, and the first data is sent on the second shared resource.
  • the size of the target CAPC value and the CAPC value corresponding to the second data is determined to send the first data on the second shared resource.
  • the second data is the data corresponding to the fourth SCI, which is the initial transmission data.
  • CAPC value corresponding to the second data has been determined by the second terminal device when sending the second data.
  • specific determination method please refer to the above.
  • the first data is determined to be the second data.
  • the data is packaged according to the target CAPC value to obtain the first data.
  • the second terminal device can send the first data to the first terminal device or other terminal devices, and the recipient of the first data can It depends on the second data itself, and the embodiment of the present application does not limit this.
  • the second terminal device determines whether to repackage the data sent on the shared resource of the COT resource according to the priority value corresponding to the COT resource, so that the second terminal device can use the COT resource normally, thereby Improve the transmission efficiency of unlicensed spectrum.
  • Method 1 The sending end UE sends indication information to the receiving end UE.
  • the indication information is used to instruct the sending end UE to send the physical sidelink feedback channel (physical sidelink feedback channel) associated with the physical sidelink shared channel (PSSCH). channel, PSFCH), where the HARQ feedback information is carried in the PSFCH.
  • PSFCH physical sidelink feedback channel
  • HARQ feedback information is carried in the PSFCH.
  • Method 2 The receiving end UE independently determines the resource location of the PSFCH. At this time, the receiving end UE sends the PSFCH to the sending end UE.
  • the PSFCH carries indication information, and the indication information is used to indicate the resource location of the PSFCH.
  • the resources corresponding to the first PSFCH and the resources corresponding to the second PSFCH may overlap, which terminal equipment B cannot predict in advance. Condition.
  • FIG 10 is a schematic diagram of another communication scenario provided by an embodiment of the present application. (Scenario of Embodiment 4)
  • the fourth terminal device in the interaction between the fourth terminal device and the fifth terminal device, the fourth terminal device is the sending end of the first PSSCH, and the fourth terminal device receives the first PSFCH from the fifth terminal device. If the first The resources corresponding to the PSFCH are determined by the fifth terminal device, so the fourth terminal device cannot determine the resource location of the first PSFCH (that is, the resource of the PSFCH that carries the HARQ feedback information determined through method 2). In the interaction between the fourth terminal device and the sixth terminal device, the fourth terminal device is the receiving end of the second PSSCH, and the fourth terminal device needs to send the second PSFCH to the sixth terminal device.
  • the fourth terminal device cannot determine the resource location of the second PSFCH (that is, the resource of the PSFCH that carries the HARQ feedback information determined through method 1).
  • the embodiment of the present application proposes another communication method, which will be described in detail with reference to FIG. 11 and FIG. 12 .
  • Figure 11 is a schematic flowchart of another communication method proposed by an embodiment of the present application.
  • the first side link feedback channel is used to carry the first hybrid automatic repeat request message from the fifth terminal device.
  • the first receiving resource is determined by the fifth terminal device
  • first indication information is received from the fifth terminal device, and the first indication information is used to indicate the first reception resource of the first side link feedback channel.
  • the second side link feedback channel is used to carry the second hybrid automatic repeat request message sent to the sixth terminal device.
  • the first sending resource is through the third
  • the sharing indication information is indicated by the location information of the first sending resource.
  • third sharing indication information is received from the sixth terminal device, and the third sharing indication information is used for the first transmission resource of the second side link feedback channel, wherein the third COT resource includes the first To send resources, the third COT resource is preempted by the sixth terminal device.
  • the third sharing indication information includes the location of the first transmission resource and/or the type of LBT at the location of the first transmission resource.
  • the third sharing indication information may be sent to the fourth terminal device in the form of an independent message, or may be carried in an added field of the fourth information, and the fourth information corresponds to the second side link shared channel,
  • the embodiments of the present application do not limit this.
  • the fourth information may be side link control information or other types of information, which is not limited in this embodiment of the present application.
  • first receiving resource and the first transmitting resource may overlap in the time domain or may overlap in the frequency domain, which is not limited in this embodiment of the present application.
  • the fourth terminal device receives the first PSFCH from the fifth terminal device, or the fourth terminal device sends the second PSFCH to the fifth terminal device.
  • the terminal device when the first receiving resource and the first sending resource conflict, formulates a communication strategy at the location of the conflicting resource, whether to receive the first side link feedback channel or to send the second side link feedback channel. , which can ensure normal communication of terminal equipment.
  • FIG. 11 The solution of FIG. 11 will be described in detail below in conjunction with FIG. 12 .
  • Figure 12 is an interaction diagram of yet another communication method provided by an embodiment of the present application.
  • first PSFCH is used in Figure 12 to represent “first side link feedback channel”
  • second PSFCH is used to represent “second side link feedback channel”.
  • the fourth terminal device determines the resources corresponding to the first PSSCH.
  • the working mode of the fourth terminal device for acquiring side link resources is the first mode (for example, Mode 1)
  • the location of the resource corresponding to the first PSSCH is acquired from the base station.
  • the embodiment of the present application does not limit the manner in which the first fourth terminal device determines the resource corresponding to the first PSSCH.
  • the fourth terminal device receives DCI from the base station, where the DCI indicates the location of the resource corresponding to the first PSSCH.
  • the fourth terminal device receives a radio resource control (RRC) message from the base station to configure the location of the resource corresponding to the first PSSCH.
  • RRC radio resource control
  • the first PSSCH is used to carry data sent to the fifth terminal device.
  • the CAPC value corresponding to the data may be called the fifth priority value, and the data priority value corresponding to the data may also be called the fifth priority value.
  • the fourth terminal device sends the first PSSCH to the fifth terminal device, and the fifth terminal device receives the first PSSCH from the fourth terminal device.
  • the fourth terminal device sends the first PSSCH on the resource determined in S1101.
  • the fifth terminal device sends the first instruction information to the fourth terminal device, and the fourth terminal device receives the first instruction information from the fifth terminal device.
  • the first indication information is used to indicate the location of the first reception resource of the first PSFCH carrying the first HARQ information.
  • the sixth terminal equipment sends the second PSSCH, the fourth SCI and the third sharing instruction information to the fourth terminal equipment, and the fourth terminal equipment receives the second PSSCH, the fourth SCI and the third sharing instruction information from the sixth terminal equipment.
  • the fourth SCI corresponding to the second PSSCH carries the third sharing instruction information, or the third sharing instruction information is sent to the fourth terminal device in the form of an independent message.
  • the third sharing instruction information includes location information of the first sending resource, the first sending resource belongs to the third COT resource, and the third COT resource is preempted by the sixth terminal device.
  • the third sharing indication information includes location information of the first transmission resource of the second PSFCH carrying the second HARQ information and/or the type of LBT at the location of the first transmission resource.
  • the second PSSCH is used to carry data received from the sixth terminal device.
  • the CAPC value corresponding to the data is called the fourth priority value.
  • the data priority value corresponding to the data may also be called the fourth priority value.
  • the third sharing indication information may include a fourth priority value, or the fourth SCI may include a fourth priority value.
  • the fourth terminal device obtains the first receiving resource corresponding to the first PSFCH and the first transmitting resource of the second PSFCH.
  • the fourth terminal device receives the first PSFCH or sends the second PSFCH according to the location information and/or priority information of the first transmitting resource.
  • the overlap between the position of the first receiving resource and the position of the first transmitting resource can be understood as a partial or complete overlap of the first receiving resource and the first transmitting resource.
  • the fourth terminal device cannot receive the first PSFCH and transmit at the same time. 2nd PSFCH.
  • the second PSFCH is sent on the first sending resource according to the location information of the first sending resource.
  • the fourth terminal device sends the second PSFCH on the first transmitting resource, and the location information of the first transmitting resource is used to indicate the absolute location information of the first transmitting resource.
  • the absolute position information of the first transmission resource can be understood as the fourth terminal device can directly send the second PSFCH on the first transmission resource according to the absolute position.
  • the terminal device when a time domain resource conflict occurs between the first receiving resource and the first transmitting resource, the terminal device will give priority to sending the second PSFCH at the first transmitting resource at the conflicting resource location, which can give priority to ensuring the normal use of the COT resource, thereby improving The transmission efficiency of unlicensed spectrum also ensures the normal communication of terminal equipment.
  • the second PSFCH is sent on the first transmitting resource, where the first The location information of the transmission resource is also used to indicate the location of the first transmission resource in the third channel occupancy time resource.
  • the terminal device gives priority to sending the second PSFCH at the first sending resource in the third COT resource, which can prioritize the normal use of the COT resource. thereby increasing the unauthorized frequency Spectrum transmission efficiency, while also ensuring the normal communication of terminal equipment.
  • the first PSFCH is received or the second PSFCH is sent according to the location information and priority information of the first transmission resource.
  • the priority information includes the CAPC value corresponding to the first receiving resource of the first PSFCH and the first transmitting resource of the second PSFCH, or the priority information includes the data priority value corresponding to the first PSFCH and the second PSFCH.
  • the first sending resource is located at the last time domain resource position in the third COT resource, then it is determined to receive the first PSFCH or to send the second PSFCH according to the priority information.
  • the second PSFCH is sent on the first sending resource.
  • the fourth priority value is the CAPC value corresponding to the second PSFCH
  • the fifth priority value is the CAPC value corresponding to the first PSFCH.
  • the fourth priority value is the CAPC value corresponding to the second PSFCH, which can be understood as the CAPC value used by the sixth terminal device when seizing the third COT resource.
  • the fourth priority value can be carried in the third sharing indication information or the third Four SCI.
  • the fifth priority value is the CAPC value corresponding to the first PSFCH, which can be understood as the CAPC value of the transport block corresponding to the first HARQ information carried by the first PFSCH, and the fifth priority value is determined by the fourth terminal device.
  • the fourth priority value is the data priority value corresponding to the second PSFCH
  • the fifth priority value is the data priority value corresponding to the first PSFCH.
  • the data priority value corresponding to the first PSFCH is the same as the data priority value corresponding to the first PSSCH.
  • the data priority value corresponding to the second PSFCH is the same as the data priority value corresponding to the second PSSCH.
  • the priority value of the first PSSCH is determined by the fourth terminal equipment itself.
  • the priority value of the second PSSCH may be carried in information carried in the second PSSCH, for example, in the fourth CSI.
  • the second PSFCH is sent on the first transmission resource, and the first PSFCH is received on the first reception resource.
  • the terminal device can provide a more appropriate communication strategy by comparing the fourth priority value and the fifth priority value, thereby ensuring normal communication of the terminal device.
  • the first PSFCH is received or the second PSFCH is sent according to the priority information.
  • the fourth terminal device can directly receive the first PSFCH or send the second PSFCH according to the above priority information.
  • the specific judgment process please refer to the previous content and will not be described in detail here.
  • embodiments of the present application also provide corresponding devices, which include units for executing corresponding units in the above method embodiments.
  • the unit can be software, hardware, or a combination of software and hardware. It can be understood that the technical features described in the above method embodiments are also applicable to the following device embodiments.
  • FIG. 13 is a schematic diagram of a communication method device 1300 provided by an embodiment of the present application.
  • the device 1300 includes a transceiver unit 1310 and a processing unit 1320.
  • the transceiver unit 1310 may be used to implement corresponding communication functions.
  • the transceiver unit 1310 may also be called a communication interface or a communication unit.
  • the processing unit 1320 may be used to implement corresponding processing functions, such as configuring resources.
  • the device 1300 also includes a storage unit, which can be used to store instructions and/or data, and the processing unit 1320 can read the instructions and/or data in the storage unit, so that the device implements each of the foregoing method embodiments.
  • the actions of the equipment or network elements in the network can be used to store instructions and/or data, and the processing unit 1320 can read the instructions and/or data in the storage unit, so that the device implements each of the foregoing method embodiments.
  • the actions of the equipment or network elements in the network can be used to store instructions and/or data, and the processing unit 1320 can read the instructions and/or data in the storage unit, so that the device implements each of the foregoing method embodiments.
  • the actions of the equipment or network elements in the network can be used to store instructions and/or data, and the processing unit 1320 can read the instructions and/or data in the storage unit, so that the device implements each of the foregoing method embodiments.
  • the actions of the equipment or network elements in the network can be used to store instructions
  • the device 1300 can be the first terminal device in the previous embodiment (the first terminal device in Figures 6 and 7), or it can be a component of the first terminal device (such as a chip) .
  • the device 1300 can implement steps or processes corresponding to those performed by the first terminal device in the above method embodiment, wherein the transceiver unit 1310 can be used to perform operations related to the transceiver of the first terminal device in the above method embodiment, and the processing unit 1320 may be used to perform operations related to processing of the first terminal device in the above method embodiment.
  • the transceiver unit 1310 is configured to receive the first information from the second terminal device.
  • the first information includes a first priority value, and the first priority value is used to indicate the priority of the data corresponding to the first information. level;
  • the transceiver unit 1310 is also used to send first sharing instruction information to the second terminal device, the first sharing instruction information is used to indicate the first shared resource to the second terminal device, and the second priority value is greater than or equal to the first
  • the priority value, the second priority value is used to indicate the priority corresponding to the first channel occupancy time resource, and the first channel occupancy time resource includes the first shared resource.
  • the processing unit 1320 is used to determine the first sharing instruction information.
  • the device 1300 can be the second terminal device in the previous embodiment (the second terminal device in Figure 8), or it can be a component of the second terminal device (such as a chip).
  • the device 1300 can implement steps or processes corresponding to those performed by the second terminal device in the above method embodiment, wherein the transceiver unit 1310 can be used to perform operations related to the transceiver of the second terminal device in the above method embodiment, and the processing unit 1320 may be used to perform operations related to processing of the second terminal device in the above method embodiment.
  • the transceiver unit 1310 is configured to receive second sharing indication information.
  • the second sharing indication is used to indicate the second sharing resource obtained by the second terminal device.
  • the second sharing indication information includes the target channel access priority. value, the target channel access priority value is used to indicate the channel access priority corresponding to the second channel occupancy time resource, and the second channel occupancy time resource includes the second shared resource.
  • the transceiver unit is also configured to send the first data on the second shared resource according to the target channel access priority value.
  • the processing unit 1320 is used to determine the first data.
  • the device 1300 may be the fourth terminal device in the previous embodiment (the fourth terminal device in Figure 11), or may be a component (such as a chip) of the fourth terminal device.
  • the device 1300 can implement steps or processes corresponding to those performed by the fourth terminal device in the above method embodiment, wherein the transceiver unit 1310 can be used to perform operations related to transceiver of the fourth terminal device in the above method embodiment, and the processing unit 1320 may be used to perform operations related to processing of the fourth terminal device in the above method embodiment.
  • the processing unit 1320 is configured to obtain the first receiving resource of the first side link feedback channel, which is used to carry the first hybrid automatic repeat request from the fifth terminal device. information.
  • the processing unit 1320 is also configured to obtain the first sending resource of the second side link feedback channel, which is used to carry the second hybrid automatic repeat request message sent to the sixth terminal device.
  • the first sending The resource is indicated by the location information of the first sending resource of the third type of sharing indication information.
  • the transceiving unit 1310 is configured to receive the first side link feedback channel or send the second side link according to the location information and/or priority information of the first sending resource. feedback channel.
  • the device 1300 here is embodied in the form of a functional unit.
  • the term "unit” as used herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor, or a group of processors) used to execute one or more software or firmware programs. processor, etc.) and memory, merged logic circuitry, and/or other suitable components to support the described functionality.
  • ASIC application specific integrated circuit
  • processor such as a shared processor, a proprietary processor, or a group of processors
  • memory merged logic circuitry, and/or other suitable components to support the described functionality.
  • the device 1300 can be specifically the first terminal device in the above embodiments, and can be used to execute various processes corresponding to the first terminal device in the above method embodiments and/or or steps; alternatively, the device 1300 may be specifically the second terminal device in the above embodiments, and may be used to execute various processes and/or steps corresponding to the second terminal device in the above method embodiments; or the device 1300 may be specifically It is the fourth terminal device in the above embodiments and can be used to execute various processes and/or steps corresponding to the fourth terminal device in the above method embodiments. To avoid duplication, they will not be described again here.
  • the device 1300 of each of the above solutions has the function of realizing the corresponding steps performed by the device (such as the first terminal device, the second terminal device, and the fourth terminal device) in the above method.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiving unit. (machine replacement), other units, such as processing units, etc., can be replaced by processors to respectively perform the sending and receiving operations and related processing operations in each method embodiment.
  • transceiver unit 1310 may also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.
  • the device in Figure 13 may be the network element or device in the aforementioned embodiment, or it may be a chip or a chip system, such as a system on chip (SoC).
  • the transceiver unit may be an input-output circuit or a communication interface; the processing unit may be a processor, microprocessor, or integrated circuit integrated on the chip. No limitation is made here.
  • FIG. 14 is a schematic diagram of another communication device 1400 according to an embodiment of the present application.
  • the device 1400 includes a processor 1410, which is used to execute computer programs or instructions stored in the memory 1420, or read data/signaling stored in the memory 1420, to perform the methods in each method embodiment above.
  • processors 1410 there are one or more processors 1410 .
  • the device 1400 also includes a memory 1420, which is used to store computer programs or instructions. and/or data.
  • the memory 1420 may be integrated with the processor 1410, or may be provided separately.
  • the device 1400 also includes a transceiver 1430, which is used for receiving and/or transmitting signals.
  • the processor 1410 is used to control the transceiver 1430 to receive and/or transmit signals.
  • the device 1400 is used to implement the operations performed by the first terminal device in each of the above method embodiments.
  • the processor 1410 is used to execute computer programs or instructions stored in the memory 1420 to implement related operations of the first terminal device in each of the above method embodiments.
  • the device 1400 is used to implement the operations performed by the second terminal device in each of the above method embodiments.
  • the processor 1410 is used to execute computer programs or instructions stored in the memory 1420 to implement related operations of the second terminal device in each of the above method embodiments. For example, the method performed by the second device in the embodiment shown in Figure 8 or Figure 9.
  • the device 1400 is used to implement the operations performed by the fourth terminal device in each of the above method embodiments.
  • the processor 1410 is used to execute computer programs or instructions stored in the memory 1420 to implement related operations of the fourth terminal device in each of the above method embodiments. For example, the method performed by the fourth device in the embodiment shown in FIG. 11 or FIG. 12 .
  • processors mentioned in the embodiments of this application may be a central processing unit (CPU), or other general-purpose processor, digital signal processor (DSP), or application-specific integrated circuit (ASIC).
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory. Erase electrically programmable read-only memory (EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (RAM). For example, RAM can be used as an external cache.
  • RAM includes the following forms: 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 link dynamic random access memory (synchlink DRAM, SLDRAM) and direct Memory bus random access memory (direct rambus RAM, DR RAM).
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component
  • the memory storage module
  • memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.
  • FIG. 15 is a schematic diagram of a chip system 1500 provided by an embodiment of the present application.
  • the chip system 1500 (or can also be called a processing system) includes a logic circuit 1510 and an input/output interface 1520.
  • the logic circuit 1510 may be a processing circuit in the chip system 1500 .
  • the logic circuit 1510 can be coupled to the memory unit and call instructions in the memory unit, so that the chip system 1500 can implement the methods and functions of various embodiments of the present application.
  • the input/output interface 1520 can be an input/output circuit in the chip system 1500, which outputs information processed by the chip system 1500, or inputs data or signaling information to be processed into the chip system 1500 for processing.
  • the logic circuit 1510 is coupled to the input/output interface 1520, and the logic circuit 1510 can pass
  • the input/output interface 1520 sends the first sharing instruction information, which may be configured by the logic circuit 1510; or the input/output interface 1520 may input the first information to the logic circuit 1510 for processing.
  • the logic circuit 1510 is coupled with the input/output interface 1520, and the logic circuit 1510 can pass the input/output interface.
  • the output interface 1520 receives the first sharing instruction information.
  • the chip system 1500 is used to implement the operations performed by the first terminal device in each of the above method embodiments.
  • the logic circuit 1510 is used to implement the processing-related operations performed by the first terminal device in the above method embodiment
  • the input/output interface 1520 is used to implement the sending and/or execution by the first terminal device in the above method embodiment. or receive related operations.
  • the chip system 1500 is used to implement the operations performed by the second terminal device in each of the above method embodiments.
  • the logic circuit 1510 is used to implement processing-related operations performed by the second terminal device in the above method embodiment.
  • the processing-related operations performed by the second terminal device in the embodiment shown in Figure 8 or Figure 9 the input/output interface 1520 is used to implement the sending and/or reception performed by the second terminal device in the above method embodiment.
  • Related operations such as sending and/or receiving related operations performed by the second terminal device in the embodiment shown in FIG. 8 or FIG. 9 .
  • the chip system 1500 is used to implement the operations performed by the fourth terminal device in each of the above method embodiments.
  • the logic circuit 1510 is used to implement processing-related operations performed by the fourth terminal device in the above method embodiment.
  • the processing-related operations performed by the fourth terminal device in the embodiment shown in Figure 11 or Figure 12 the input/output interface 1520 is used to implement the sending and/or reception performed by the fourth terminal device in the above method embodiment.
  • Related operations such as sending and/or receiving related operations performed by the fourth terminal device in the embodiment shown in FIG. 11 or FIG. 12 .
  • Embodiments of the present application also provide a computer-readable storage medium on which computer instructions for implementing the methods executed by the device in each of the above method embodiments are stored.
  • the computer when the computer program is executed by a computer, the computer can implement the method executed by the first terminal device in each embodiment of the above method.
  • the computer when the computer program is executed by a computer, the computer can implement the method executed by the second terminal device in each embodiment of the above method.
  • the computer when the computer program is executed by a computer, the computer can implement the method executed by the fourth terminal device in each embodiment of the above method.
  • Embodiments of the present application also provide a computer program product, which includes instructions.
  • the instructions When the instructions are executed by a computer, the instructions in each of the above method embodiments are implemented by a device (such as a second terminal device, a first terminal device, or a fourth terminal). device) execution method.
  • a device such as a second terminal device, a first terminal device, or a fourth terminal). device
  • An embodiment of the present application also provides a communication system, including at least one of the aforementioned first terminal device, second terminal device, and third terminal device. Or include the aforementioned fourth terminal equipment, fifth terminal equipment and sixth terminal equipment.
  • the disclosed devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer may be a personal computer, a server, or a network device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated.
  • the available media may be magnetic media (such as floppy disks, hard disks, magnetic tapes), optical media (such as DVDs), or semiconductor media (such as solid state disks (SSD)), etc.
  • the aforementioned available media include but Not limited to: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program code.

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Abstract

本申请实施例提供了一种通信方法、装置和系统。该方法可以包括接收来自第二终端设备的第一信息，第一侧链路控制信息包括第一优先级值，第一优先级值用于指示第一信息对应的数据的优先级；向第二终端设备发送第一分享指示信息，第一分享指示信息用于指示给第二终端设备的第一分享资源，第二优先级值大于或等于第一优先级值，第二优先级值用于指示第一信道占用时间资源对应的优先级，第一信道占用时间资源包括第一分享资源。这样，分享指示信息中指示的分享资源对应的优先级值大于或等于其他终端设备对应的优先级值，有助于保证其他终端设备正常使用获得的COT分享资源中的分享资源，从而提高非授权频谱的传输效率。

Description

通信方法、装置和系统
本申请要求于2022年8月4日提交中国专利局、申请号为202210933587.6、申请名称为“通信方法、装置和系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信领域，并且更具体地，涉及一种通信方法、装置和系统。
背景技术
目前，侧链路(sidelink,SL)的信道占用时间(channel occupancy time,COT)分享机制中，如果其他终端设备的预留资源的时域位置满足时间间隔分享条件，那么终端设备A可以将自己抢占的COT资源分享给其他终端设备。
因此，如何保证COT资源的正常使用，以提高终端设备在侧链路通信中非授权频谱的传输效率，是一个亟待解决的问题。
发明内容
本申请实施例提供一种通信方法、装置和系统，可以保证COT资源的正常使用，以提高终端设备在侧链路通信中非授权频谱的传输效率。
第一方面，提供了一种通信方法，该方法应用于第一终端设备，该方法包括：接收来自第二终端设备的第一信息，第一信息包括第一优先级值，第一优先级值用于指示第一信息对应的数据的优先级；向第二终端设备发送第一分享指示信息，第一分享指示信息用于指示给第二终端设备的第一分享资源，第二优先级值大于或等于第一优先级值，第二优先级值用于指示第一信道占用时间资源对应的优先级，第一信道占用时间资源包括第一分享资源。
通过上述技术方案,通过获取其他终端设备发送的数据对应的优先级值，并确定分享指示信息，指示信息中指示的资源的优先级值大于或等于其他终端设备对应的优先级值，有助于保证其他终端设备正常使用获得的信道占用时间资源中的分享资源，从而提高非授权频谱的传输效率。
在某些实现方式中，在向第二终端设备发送第一分享指示信息之前，该方法还包括：根据第一优先级值，确定第一信道占用时间资源。
在某些实现方式中，该方法还包括：接收来自第三终端设备的第二信息，第二信息包括第三优先级值，第三优先级值用于指示第二信息对应的数据的优先级。根据第一优先级值，确定第一信道占用时间资源还包括：根据第一优先级值和第三优先级值，确定第一信道占用时间资源。
在某些实现方式中，根据第一优先级值和第三优先级值，确定第一信道占用时间资源包括：根据第一集合中最大的优先级值，抢占第一信道占用时间资源，第一集合包括第一优先级值、第三优先级值和第一终端设备发送的数据对应的优先级值，或者第一集合包括第一优先级值和第三优先级值，第二优先级值为最大的优先级值。
通过上述技术方案，第一终端设备通过获知其他终端设备的优先级值，并从中选择最大的优先级值来抢占信道占用时间资源。由于抢占该信道占用时间资源时使用的优先级值最大，因此，其他终端设备在接收到分享指示信息指示的分享资源后，可以正常使用信道占用时间资源中的分享资源，从而提高非授权频谱的传输效率。
在某些实现方式中，根据第一优先级值，确定第一信道占用时间资源包括：根据第一优先级值，确定第二终端设备为第一信道占用时间资源对应的分享对象，第二优先级值为第一终端设备发送的数据对应的优先级值。
通过上述技术方案，第一终端设备通过自身发送的数据对应的优先级值，抢占了一个信道占用时间资源，由于第一终端设备获取了其他终端设备(例如，第二终端设备)对应的优先级值，因此，第 一终端设备可以通过比较其他终端设备对应的优先级值和抢占该信道占用时间资源使用的优先级值，来确定该信道占用时间资源中的资源分享对象。其他终端设备在接收到分享指示信息指示的分享资源后，可以正常使用信道占用时间资源中的分享资源，从而提高非授权频谱的传输效率。
在某些实现方式中，第一分享指示信息包括第一分享资源的位置和/或在第一分享资源的位置处的先检测后发送LBT的类型。
可选地，第一分享指示信息还包括第二优先级值。
在某些实现方式中，该方法还包括，根据第一信道占用时间资源、第一预留资源的位置和第二预留资源的位置，确定第二终端设备为第一信道占用时间资源的分享对象，其中，第一信息还包括第一预留资源的位置，第二信息还包括第二预留资源的位置。
在某些实现方式中，该方法还包括，第一分享资源为第一预留资源中满足第一COT资源分享条件的部分资源或全部资源，其中第一COT资源分享条件包括第一预留资源和第二预留资源对应的资源块相互之间的时间间隔符合LBT的Type2的时间间隔，第一COT资源覆盖第一预留资源的对应的部分或全部资源块，并且第一信息相关数据对应的数据优先级值小于或等于第一终端设备发送的数据对应的数据优先级值。
第二方面，提供了一种通信方法，该方法应用于第二终端设备，该方法包括：接收第二分享指示信息，第二分享指示用于指示第二终端设备获得的第二分享资源，第二分享指示信息包括目标信道接入优先级值，目标信道接入优先级值用于指示第二信道占用时间资源对应的信道接入优先级，第二信道占用时间资源包括第二分享资源；根据目标信道接入优先级值，在第二分享资源上发送第一数据。
通过上述技术方案，第二终端设备根据信道占用时间资源对应的优先级值，判断是否对在信道占用时间资源的分享资源上发送的数据进行重新组包，可以使得第二终端设备正常使用信道占用时间资源，从而提高非授权频谱的传输效率。
在某些实现方式中，第一数据对应的信道接入优先级值小于或等于目标信道接入优先级值。
在某些实现方式中，根据目标信道接入优先级值，在第二分享资源上发送第一数据包括：当第二分享资源用于初传时，根据目标信道接入优先级值组包数据，以得到第一数据，在第二分享资源上发送第一数据。
在某些实现方式中，根据目标信道接入优先级值，在第二分享资源上发送第一数据包括：当第二分享资源用于重传时，如果初传数据对应的信道接入优先级值小于或等于目标信道接入优先级值，那么在第二分享资源上发送第一数据，其中，第一数据为初传数据。
在某些实现方式中，根据目标信道接入优先级值，在第二分享资源上发送第一数据包括：当第二分享资源用于重传时，如果初传数据对应的信道接入优先级值大于目标信道接入优先级值，那么根据目标信道接入优先级值组包数据，以得到第一数据；在第二分享资源上发送第一数据。
第三方面，提供了一种通信方法，该方法应用于第四终端设备，该方法包括：获取第一侧链路反馈信道的第一接收资源，第一侧链路反馈信道用于承载来自第五终端设备的第一混合自动重传请求消息；获取第二侧链路反馈信道的第一发送资源，第二侧链路反馈信道用于承载向第六终端设备发送的第二混合自动重传请求消息，第一发送资源是通过第三分享指示信息种的第一发送资源的位置信息指示的；当第一接收资源和第一发送资源发生重叠时，根据第一发送资源的位置信息和/或优先级信息，接收第一侧链路反馈信道或发送第二侧链路反馈信道。
通过上述技术方案，当第一接收资源和第一发送资源发生冲突时，终端设备在冲突资源位置处，制定接收第一侧链路反馈信道还是发送第二侧链路反馈信道的通信策略，可以保证终端设备的正常通信。
在某些实现方式中，根据第一发送资源的位置信息和/或优先级信息，接收第一侧链路反馈信道或发送第二侧链路反馈信道包括：根据第一发送资源的位置信息，在第一发送资源上发送第二侧链路反馈信道。
在某些实现方式中，根据第一发送资源的位置信息，在第一发送资源上发送第二侧链路反馈信道包括：在第一发送资源上发送第二侧链路反馈信道，第一发送资源的位置信息用于指示第一发送资源的绝对位置信息。
通过上述技术方案，当第一接收资源和第一发送资源发生时域资源冲突时，终端设备在冲突资源 位置处，优先在第一发送资源处发送第二侧链路反馈信道，可以优先保证信道占用时间资源的正常使用，从而提高非授权频谱的传输效率，同时也保证了终端设备的正常通信
在某些实现方式中，根据第一发送资源的位置信息，发送第二侧链路反馈信道包括：第一发送资源的位置信息还用于指示第一发送资源在第三信道占用时间资源中的位置；如果第一发送资源不处于第三信道占用时间资源的最后的时域位置，那么在第一发送资源上发送第二侧链路反馈信道。
通过上述技术方案，当资源重叠位置不在第三信道占用时间资源内最后的时域资源位置处时，终端设备优先在第三信道占用时间资源内的第一发送资源处发送第二侧链路反馈信道，可以优先保证信道占用时间资源的正常使用，从而提高非授权频谱的传输效率，同时也保证了终端设备的正常通信
在某些实现方式中，根据第一发送资源的位置信息和/或优先级信息，接收第一侧链路反馈信道或发送第二侧链路反馈信道包括：根据第一发送资源的位置信息和优先级信息，接收第一侧链路反馈信道或发送第二侧链路反馈信道。
在某些实现方式中，根据第一发送资源的位置信息和优先级信息，接收第一侧链路反馈信道或发送第二侧链路反馈信道包括：第一发送资源的位置信息还用于指示第一发送资源在第三信道占用时间资源中的位置；如果第一发送资源处于第三信道占用时间资源的最后的时域位置，那么根据优先级信息，接收第一侧链路反馈信道或发送第二侧链路反馈信道，其中，优先级信息包括第一侧链路反馈信道和第二侧链路反馈信道对应的信道接入优先级的值，或者优先级信息包括第一侧链路反馈信道和第二侧链路反馈信道对应的数据优先级的值。
通过上述技术方案，当资源重叠位置处于第三信道占用时间资源内最后的时域资源位置处时，即使不优先使用在第三信道占用时间资源内的第一发送资源处发送第二侧链路反馈信道，也不会对其他获得第三信道占用时间资源的终端设备产生影响，因此，终端设备通过对第四优先级值和第五优先级值的比较，可以给出更加合适的通信策略，从而保证终端设备的正常通信
在某些实现方式中，根据优先级信息，接收第一侧链路反馈信道或发送第二侧链路反馈信道包括：如果第四优先级值小于或等于第五优先级值，在第一发送资源上发送第二侧链路反馈信道；其中，第四优先级值用于指示第二侧链路反馈信道对应的信道接入优先级，第五优先级值用于指示第一侧链路反馈信道对应的信道接入优先级；或者，第四优先级值用于指示第二侧链路反馈信道对应的数据优先级值，第五优先级值用于指示第一侧链路反馈信道对应的数据优先级值。
在某些实现方式中，根据优先级信息，接收第一侧链路反馈信道或发送第二侧链路反馈信道包括：如果第四优先级值大于第五优先级值，在第一接收资源上接收第一侧链路反馈信道；其中，第四优先级值用于指示第二侧链路反馈信道对应的信道接入优先级，第五优先级值用于指示第一侧链路反馈信道对应的信道接入优先级；或者，第四优先级值用于指示第二侧链路反馈信道对应的数据优先级值，第五优先级值用于指示第一侧链路反馈信道对应的数据优先级值。
第四方面，提供了一种通信装置，该装置为第一终端设备，该装置包括收发单元：收发单元用于，接收来自第二终端设备的第一信息，第一信息包括第一优先级值，第一优先级值用于指示第一信息对应的数据的优先级；向第二终端设备发送第一分享指示信息，第一分享指示信息用于指示给第二终端设备的第一分享资源，第二优先级值大于或等于第一优先级值，第二优先级值用于指示第一信道占用时间资源对应的优先级，第一信道占用时间资源包括第一分享资源。
第四方面的技术方案对应的技术效果相关内容可以参考第一方面的相应的描述。
在某些实现方式中，该装置还包括处理单元：处理单元用于，根据第一优先级值，确定第一信道占用时间资源。
在某些实现方式中，收发单元还用于，接收来自第三终端设备的第二信息，第二信息包括第三优先级值，第三优先级值用于指示第二信息对应的数据的优先级；处理单元具体用于，根据第一优先级值和第三优先级值，确定第一信道占用时间资源。
在某些实现方式中，根处理单元具体用于，根据第一集合中最大的优先级值，抢占第一信道占用时间资源，第一集合包括第一优先级值、第三优先级值和第一终端设备发送的数据对应的优先级值，或者第一集合包括第一优先级值和第三优先级值，第二优先级值为最大的优先级值。
在某些实现方式中，处理单元具体用于，根据第一优先级值，确定第二终端设备为第一信道占用时间资源对应的分享对象，第二优先级值为第一终端设备发送的数据对应的优先级值。
在某些实现方式中，第一分享指示信息包括第一分享资源的位置和/或在第一分享资源的位置处的先检测后发送LBT的类型。
可选地，第一分享指示信息还包括第二优先级值。
在某些实现方式中，处理单元还具体用于，根据第一信道占用时间资源、第一预留资源的位置和第二预留资源的位置，确定第二终端设备为第一信道占用时间资源的分享对象，其中，第一信息还包括第一预留资源的位置，第二信息还包括第二预留资源的位置。
在某些实现方式中，第一分享资源为第一预留资源中满足第一COT资源分享条件的部分资源或全部资源，其中第一COT资源分享条件包括第一预留资源和第二预留资源对应的资源块相互之间的时间间隔符合LBT的Type2的时间间隔，第一COT资源覆盖第一预留资源的对应的部分或全部资源块，并且第一信息相关数据对应的数据优先级值小于或等于第一终端设备发送的数据对应的数据优先级值。
第五方面，提供了一种通信装置，该装置为第二终端设备，该装置包括收发单元：收发单元用于，接收第二分享指示信息，第二分享指示用于指示第二终端设备获得的第二分享资源，第二分享指示信息包括目标信道接入优先级值，目标信道接入优先级值用于指示第二信道占用时间资源对应的信道接入优先级，第二信道占用时间资源包括第二分享资源；根据目标信道接入优先级值，在第二分享资源上发送第一数据。
第五方面的技术方案对应的技术效果相关内容可以参考第二方面的相应的描述。
在某些实现方式中，第一数据对应的信道接入优先级值小于或等于目标信道接入优先级值。
在某些实现方式中，该装置还包括处理单元：处理单元用于，当第二分享资源用于初传时，根据目标信道接入优先级值组包数据，以得到第一数据；收发单元还用于，在第二分享资源上发送第一数据。
在某些实现方式中，收发单元还用于，当第二分享资源用于重传时，如果初传数据对应的信道接入优先级值小于或等于目标信道接入优先级值，那么在第二分享资源上发送第一数据，其中，第一数据为初传数据。
在某些实现方式中，当第二分享资源用于重传时，如果初传数据对应的信道接入优先级值大于目标信道接入优先级值，那么处理单元用于，根据目标信道接入优先级值组包数据，以得到第一数据；收发单元还用于在第二分享资源上发送第一数据。
第六方面，提供了一种通信装置，该装置为第四终端设备，该装置包括收发单元和处理单元：处理单元用于，获取第一侧链路反馈信道的第一接收资源，第一侧链路反馈信道用于承载来自第五终端设备的第一混合自动重传请求消息；处理单元用于，获取第二侧链路反馈信道的第一发送资源，第二侧链路反馈信道用于承载向第六终端设备发送的第二混合自动重传请求消息，第一发送资源是通过第三分享指示信息种的第一发送资源的位置信息指示的；当第一接收资源和第一发送资源发生重叠时，收发单元用于，根据第一发送资源的位置信息和/或优先级信息，接收第一侧链路反馈信道或发送第二侧链路反馈信道。
第六方面的技术方案对应的技术效果相关内容可以参考第三方面的相应的描述。
在某些实现方式中，收发单元用于，根据第一发送资源的位置信息，在第一发送资源上发送第二侧链路反馈信道。
在某些实现方式中，收发单元具体用于，在第一发送资源上发送第二侧链路反馈信道，第一发送资源的位置信息用于指示第一发送资源的绝对位置信息。
在某些实现方式中，收发单元具体用于：第一发送资源的位置信息还用于指示第一发送资源在第三信道占用时间资源中的位置；如果第一发送资源不处于第三信道占用时间资源的最后的时域位置，那么在第一发送资源上发送第二侧链路反馈信道。
在某些实现方式中，收发单元用于，根据第一发送资源的位置信息和优先级信息，接收第一侧链路反馈信道或发送第二侧链路反馈信道。
在某些实现方式中，收发单元具体用于，第一发送资源的位置信息还用于指示第一发送资源在第三信道占用时间资源中的位置；如果第一发送资源处于第三信道占用时间资源的最后的时域位置，那么根据优先级信息，接收第一侧链路反馈信道或发送第二侧链路反馈信道，其中，优先级信息包括第一侧链路反馈信道和第二侧链路反馈信道对应的信道接入优先级的值，或者优先级信息包括第一侧链 路反馈信道和第二侧链路反馈信道对应的数据优先级的值。
在某些实现方式中，收发单元具体用于，如果第四优先级值小于或等于第五优先级值，在第一发送资源上发送第二侧链路反馈信道；其中，第四优先级值用于指示第二侧链路反馈信道对应的信道接入优先级，第五优先级值用于指示第一侧链路反馈信道对应的信道接入优先级；或者，第四优先级值用于指示第二侧链路反馈信道对应的数据优先级值，第五优先级值用于指示第一侧链路反馈信道对应的数据优先级值。
在某些实现方式中，收发单元具体用于，如果第四优先级值大于第五优先级值，在第一接收资源上接收第一侧链路反馈信道；其中，第四优先级值用于指示第二侧链路反馈信道对应的信道接入优先级，第五优先级值用于指示第一侧链路反馈信道对应的信道接入优先级；或者，第四优先级值用于指示第二侧链路反馈信道对应的数据优先级值，第五优先级值用于指示第一侧链路反馈信道对应的数据优先级值。
在一种实现方式中，第四方面的通信装置、第五方面的通信装置以及第六方面的通信装置为设备。当这些装置为设备时，收发单元可以是收发器，或，输入/输出接口；处理单元可以是至少一个处理器。可选地，收发器可以为收发电路。可选地，输入/输出接口可以为输入/输出电路。
在另一种实现方式中，第四方面的通信装置、第五方面的通信装置以及第六方面的通信装置为用于设备的芯片、芯片系统或电路。当这些装置为用于设备的芯片、芯片系统或电路时，收发单元可以是该芯片、芯片系统或电路上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等；处理单元可以是至少一个处理器、处理电路或逻辑电路等。
第七方面，提供一种通信装置，该装置包括：至少一个处理器，用于执行存储器存储的计算机程序或指令，以执行上述第一方面至第三方面任一种可能实现方式中的方法。可选地，该装置还包括存储器，用于存储的计算机程序或指令。可选地，该装置还包括通信接口，处理器通过通信接口读取存储器存储的计算机程序或指令。
在一种实现方式中，该装置为设备(如第一终端设备、第二终端设备或第四终端设备)。
在另一种实现方式中，该装置为用于设备(如第一终端设备、第二终端设备或第四终端设备)的芯片、芯片系统或电路。
第八方面，本申请提供一种处理器，用于执行上述各方面提供的方法。
对于处理器所涉及的发送和获取/接收等操作，如果没有特殊说明，或者，如果未与其在相关描述中的实际作用或者内在逻辑相抵触，则可以理解为处理器输出和接收、输入等操作，也可以理解为由射频电路和天线所进行的发送和接收操作，本申请对此不做限定。
第九方面，提供一种计算机可读存储介质，该计算机可读介质存储用于设备执行的程序代码，该程序代码包括用于执行上述第一方面至第三方面任一种可能实现方式中的方法。
第十方面，提供一种包含指令的计算机程序产品，当该计算机程序产品在计算机上运行时，使得计算机执行上述第一方面至第三方面任一种可能实现方式中的方法。
第十一方面，提供一种通信系统，包括上述第四方面任一种可能实现方式中的通信装置，或者包括上述第五方面任一种可能实现方式中的通信装置，或者包括上述第六方面任一种可能实现方式中的通信装置。
第十二方面，提供一种芯片，包括处理器，该处理器用于从存储器中调用并运行计算机程序，使得安装有该芯片的通信装置，执行如上述第一方面至第三方面任一种可能实现方式中的方法。
附图说明
图1是本申请实施例提供的一种通信系统的架构的示意图；
图2是本申请实施例提供的一种通信场景示意图；
图3是本申请实施例提供的一种通信方法流程示意图；
图4是本申请实施例提供的一种通信方法交互示意图；
图5是本申请实施例提供的一种第一预留资源示意图；
图6是本申请实施例提供的一种符合分享条件的终端设备对应的分享资源在COT资源上的位置示意图；
图7是本申请实施例提供的另一种通信方法交互示意图；
图8是本申请实施例提供的另一种通信方法流程示意图；
图9是本申请实施例提供的又一种通信方法交互示意图；
图10是本申请实施例提供的另一种通信场景示意图；
图11是本申请实施例提供的又一种通信方法流程示意图；
图12是本申请实施例提供的再一种通信方法交互示意图；
图13是本申请实施例提供的一种通信方法的装置1300的示意图；
图14是本申请实施例提供另一种通信装置1400的示意图；
图15是本申请实施例提供一种芯片系统1500的示意图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
为了便于理解本申请实施例，在介绍本申请实施例之前，先作出以下几点说明。
第一，在本申请实施例中，“指示”可以包括直接指示和间接指示，也可以包括显式指示和隐式指示。将某一消息(如下文所述的第一请求消息)所指示的信息称为待指示信息，则具体实现过程中，对待指示信息进行指示的方式有很多种，例如但不限于，可以直接指示待指示信息，如待指示信息本身或者该待指示信息的索引等。也可以通过指示其他信息来间接指示待指示信息，其中该其他信息与待指示信息之间存在关联关系。还可以仅仅指示待指示信息的一部分，而待指示信息的其他部分则是已知的或者提前约定的。例如，还可以借助预先约定(例如协议规定)的各个信息的排列顺序来实现对特定信息的指示，从而在一定程度上降低指示开销。
第二，在下文示出的实施例中第一、第二以及各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围。例如，区分不同的参考信息等。
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，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、第五代(5th Generation，5G)系统或新无线(New Radio，NR)等。
本申请提供的技术方案还可以应用于未来的通信系统，如第六代移动通信系统等。本申请对此不作限定。
图1是本申请实施例提供的一种通信系统的架构的示意图。
图1是设备间通信方式的一个场景示意图，如图1所示的场景中，主要存在两种通信接口，即终端设备121与网络设备110之间的通信接口(例如Uu接口)，和终端设备121与终端设备122之间的通信接口(例如PC5接口)。其中Uu接口用于用户设备与基站或路侧单元之间的通信，PC5接口用于终端与终端之间的侧行链路通信。Uu接口上终端发送数据给基站的链路称为上行链路(uplink)，而终端接收基站发送的数据的链路称为下行链路(downlink)。终端和终端之间的通信接口称为PC5接口。PC5接口上的终端和终端之间传输数据的链路称为侧行链路(sidelink)或直通链路。侧行链路一般用于设备到设备(device to device，D2D)等可以在设备间进行直联通信的场景，在该场景中，设备之间的数据传输不需要经过基站。车联网(vehicle to everything,V2X)通信可以看成是D2D通信的一种特殊情形。
下面对图1中所示的各设备做简单介绍：
1、终端设备：还可以称为用户设备(user equipment，UE)、接入终端、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。
终端设备可以是一种向用户提供语音/数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、 移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self-driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、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、个人数字助理(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，5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请实施例对此并不限定。
在本申请实施例中，终端设备还可以是物联网(internet of things，IoT)系统中的终端设备，IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。此时，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
在本申请实施例中，V2X通信系统为IoT通信系统的一种在交通运输场景中的特殊表现形式，V2X通信系统通过装载在车上的传感器、车载终端等提供车辆信息，并通过各种通信技术实现车与车、车与人、车与路边基础设施、车与网络之间进行相互通信。此时，终端设备可以为车辆终端。
2、网络设备：可以是用于与终端设备通信的设备，该网络设备可以是全球移动通讯(Global System of Mobile communication，GSM)系统或码分多址(Code Division Multiple Access，CDMA)中的基站(Base Transceiver Station，BTS)，也可以是宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional NodeB，eNB或eNodeB)，还可以是云无线接入网络(Cloud Radio Access Network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。
在Uu接口上，终端和基站之间通过无线承载来传输数据和无线资源控制(radio resource control，RRC)信令。其中，用于传输数据的无线承载称为数据无线承载(data radio bearer，DRB)，用于传输RRC信令的承载称为信令无线承载(signaling radio bearer，SRB)。一个无线承载包括分组数据汇聚协议(packet data convergence protocol，PDCP)实体和无线链路控制(radio link control，RLC)承载。其中，一个RLC承载包括一个RLC实体和对应的逻辑信道(Logical Channel,LCH)。无线承载的配置即为该无线承载的PDCP实体，RLC实体和逻辑信道的配置。无线承载的配置需要能够保证通过该无线承载传输的业务的服务质量(quality of service，QoS)要求。在Uu接口，无线承载的配置由网络设备为终端配置。
示例性地，V2X通信中的Uu接口通信是发送方的终端设备将V2X数据通过Uu接口发送至基站，并由基站发送至V2X应用服务器进行处理后，将处理结果数据再由V2X应用服务器下发至基站，并由基站发送给接收方的终端设备的通信方式。其中，将V2X数据发送至V2X应用服务器的基站和将接收处理结果数据并将结果转发至终端设备的基站，可以是同一个基站，也可以是不同的基站，具体可以由V2X应用服务器决定。
在PC5口上，终端和终端之间也需要通过无线承载来传输数据和RRC信令。PC5口上的无线承载可以称为侧行链路无线承载(sidelink radio bearer，SL RB)。在长期演进(long term evolution，LTE)V2X系统中，PC5口上的无线承载分别由发送端终端和接收端终端自己建立，无线承载的配置通过标准预定义或者由发送端终端和接收端终端自己确定。
示例性地，在V2X通信中的PC5接口通信是终端设备之间的直连通信方式，这种直连通信链路可以称为侧行链路或侧链(sidelink,SL)。
为了便于理解，首先，先对本申请实施例涉及的技术术语做如下说明。
1、授权频谱：
授权频谱是各国根据国际规则及其自身规划分配给该国各运营商的频谱资源,各运营商为频谱资源的专有权支付许可费，各运营商对分配给自己的资源具有绝对使用权，可以满足覆盖范围、频谱效率和可靠性的服务要求。
2、非授权频谱：
通过提高容量和在某些情况下改善数据连通性，可以作为授权频谱的补充。新无线非授权频谱(new radio unlicense,NR-U)是工作于非授权频谱的5G技术，基本设计是以新空口(new radio,NR)设计为基础，结合了在非授权频段的监管需求。
3、先检测后发送机制(listen before talk,LBT)
为了公平使用非授权频谱，终端设备和网络设备在发送数据之前，都需要LBT的信道检测机制，来竞争使用非授权频谱的资源。LBT机制，顾名思义，通信设备在某个信道上发送信号(例如，数据信号或控制信号)时，可以先检测该信道是否空闲，如果该信道处于空闲态，通信设备可以在该信道上发送信号，如果该信道不处于空闲态，则通信设备不能在该信道上发送信号。这个检测过程可以称为是空闲信道评估(clear channel assessment,CCA)或信道接入过程。
具体地，LBT一般是以信道为粒度进行的，例如，20MHz。LBT机制允许多个用户共享一个信道。LBT机制执行过程中有两种结果，一个为LBT成功(也就是信道接入过程完成)，另一个为LBT失败(也就是信道接入过程未完成)。通信设备会使用LBT机制在一段时间内持续地检测信道。当通信设备在规定的一段时间内发现信道值被占用，就会发送LBT失败。
具体的，有两种LBT类型，第一种为Type 1类型的LBT，第二种为Type 2类型的LBT。
在NR-U中，当通信设备进行在发送数据之前需要做LBT。Type 1类型的LBT信道接入过程可以是：基于回退机制的能量检测，针对一定带宽，定义一个窗口，该窗口定义了检测的时隙数量的范围，通信设备从该窗口(或取值范围)内，随机选择一个数值A，通信设备检测了至少A个空闲的能量检测的时隙之后，则认为信道空闲，从而通信设备可以使用该空闲的信道传输数据；否则，认为信道忙碌，从而通信设备不使用该忙碌的信道传输数据。其中，空闲的能量检测是指在固定时长内接收到的信号能量小于或等于预设门限。当LBT的回退过程完成检测，并且判断信道是空闲的时候，如果数据还没有准备好传输，则需要等待数据的传输。在数据传输前，物理层还需要额外检测信道的一个感知时隙，如果这个感知时隙检测结果也是空闲就会直接发送数据到空口中。也就是，LBT过程实际有两个阶段，阶段一执行的是回退的过程以及阶段二执行的是一个感知时隙的检测信道。当两个阶段都是空闲的时候，数据可以发出去。
Type 2类型的LBT信道接入过程可以有三种类型的LBT，分别是Type 2A、Type 2B和Type 2C。如果前后资源的时域间隔至少是25us，网络设备指示终端设备进行Type 2A的LBT，即终端设备需要感知信道至少是25us的空闲状态，才可以接入非授权频谱的信道。如果前后资源的时域间隔等于16us，网络设备指示终端设备进行Type 2B的LBT，即终端设备需要感知信道至少是16us的空闲状态，才可以接入非授权频谱的信道。如果前后资源的时域间隔少于16us，网络设备指示终端设备进行Type 2C的LBT，即终端设备直接使用非授权频谱的信道。
4、信道接入优先级(channel access priority classes,CAPC)
如果通信设备一个LBT机制执行过程中的结果为LBT失败，也就是目前无空闲信道供通信设备传输信号，那么通信设备的发射机将等待竞争窗口，然后再次执行LBT机制。而通信设备竞争窗口的窗口条件的大小可以基于CAPC来调整。如果通信设备需要传输的数据对应的CAPC高，那么该通信设备可以使用较短的条件窗口来获得更多的信道机会来传输信息。其中，CAPC越高，CAPC对应的值越小，为了统一全文的说明，下文统一使用“优先级值”来体现CAPC。
优先级值与服务质量类别标识符(quality of service class identifier,QCI)相关联，QOI标识要发送的业务属于哪个服务质量类别。
在NR-U中，终端设备可从基站接收配置的许可，以用于在数据连接的多个逻辑信道上进行上行链路传送，其中，逻辑信道确定了传输的数据类型，每个逻辑信道分配有优先级值。终端设备可通过对多个逻辑信道上的数据进行复用来形成传输块(transmission block,TB)以用于上行链路传送，其中， 优先级值可基于复用后的逻辑信道来确定，也就是优先级值可基于复用后的数据来确定。终端设备可使用与优先级值相关联的一组LBT参数来执行LBT进程。
优先级值的确定具体可以参考如下过程，无线承载(radio bearers)和媒体接入控制层控制元素(media access control control element,MAC CE)的优先级值是固定的，或者是可以配置的。对于填充缓冲区状态报告(padding buffer status report,BSR)和推荐bit速率的MAC CE，其CAPC固定为最低(例如，优先级值取4)。对于信令无线承载(signalling radio bearer,SRB)0/1/3和其他的MAC CE，其CAPC固定为最高(例如，CAPA值取1)。对于SRB2和数据无线承载(data radio bearers,DRB)，其优先级值是由基站所配置。考虑到DRB中服务质量(quality of service,QoS)流的5QI值，3GPP协议将5QI值和优先级值进行映射，即通过DRBS数据中的5QI值确定其优先级值。如表1所示。
表1
终端设备在执行Type 1的LBT时，上行TB传输对应的优先级值并未有下行控制信息(downlink control information,DCI)给定时，有以下原则判断TB的优先级值：
当终端设备的MAC层组好传输块，并为该传输块的传输实施Type 1的LBT过程时，需要为该数据块指定一个优先级值。LBT过程会按照该优先级值去执行LBT过程。优先级值的确定原则如下：
当传输块中只有MAC CE时，这些MAC CE的CAPC最高对应的值将作为传输块的优先级值；
当传输块中含有逻辑信道生成的公共控制信道服务数据单元(common control channel service data unit,CCCH SDU)时，这些CCCH SDU的CAPC最高对应的值将作为传输块的优先级值；
当传输块中含多有逻辑信道生成的专用控制信道服务数据单元(dedicated control channel service data unit,DCCH SDU)时，这些DCCH SDU的CAPC最高对应的值将作为传输块的优先级值；
其他情况下，将逻辑信道生成的媒体接入控制层控制服务数据单元(media access control service data unit,MAC SDU)中CAPC最低对应的值作为传输块的优先级值。
5、信道占用时间(channel occupancy time,COT)
COT是通信设备通过LBT机制获取了一段时间的信道使用时间。通信设备可以自己占用该COT进行数据信号或控制信号的传输，也可以将该COT分享给其他通信设备，使得其他通信设备在该COT上进行数据信号或控制信号的传输。
具体地，抢占COT的通信设备可以将该COT的信息(例如，COT的起始时间、COT的时间长度以及COT的帧格式信息等)共享给其他通信设备。
目前，分享源终端设备根据自己发送的数据对应的CAPC等级，抢占一个COT，然后，根据其他终端设备发送的SCI中指示的其他终端设备预留的资源信息位置以及数据的优先级，确定将抢占的COT资源中相应的资源分享给满足的分享条件的目标终端设备。其中，分享条件表示目标终端设备的预留资源在COT资源内的连续性、在时域上目标终端设备的预留资源涵盖在COT资源内以及目标终端设备的数据优先级大于或等于分享源终端设备对应的数据优先级。所谓的连续性指的是，来自不同终端设备的不同预留资源对应的资源块相互之间的时间间隔符合LBT的Type2的时间间隔。
图2是本申请实施例提供的一种通信场景示意图。
在目前的侧链路通信的COT分享机制中，如图2所示，目标终端设备(例如，第二终端设备或第三终端设备)给分享源终端设备(例如，第一终端设备)发送侧链路控制信息(sidelink control information,SCI)，分享源终端设备给目标终端设备分享COT资源中相应的分享资源。如果目标终端设备在该分享资源上发送的数据对应的信道接入优先级低于抢占COT资源使用的信道接入优先级，那么目标终端设备存在无法正常使用该COT资源上的分享资源的情况，这会造成在抢占的COT资源这一段时间中非授权频谱的利用不充分，从而降低了非授权频谱的传输效率。
为了解决上述问题，本申请实施例提供了一种通信方法，下面将结合图3至图8具体说明。
图3是本申请实施例提供的一种通信方法流程示意图。
S310，第一终端设备接收来自第二终端设备的第一信息，其中，第一信息包括第一优先级值，第一优先级值用于指示第一信息对应的数据的优先级。
示例性地，第一信息可以为侧链路控制信息，或者其他携带第一优先级值的信息。
示例性地，第一优先级值可以是第一信息对应的数据对应的信道接入优先级值，还可以是第一信息对应的数据本身的优先级(priority)值，如果第一优先级值为信道接入优先级值，那么第一优先级值用于指示与第一信息对应的数据相对应的信道接入优先级。如果第一优先级值为数据优先级值，那么第一优先级值用于指示与第一信息对应的数据相对应的数据优先级。
其中，第一优先级值还可以理解为第一信息指示的第一预留资源对应的优先级值，第二终端设备可以在第一预留资源上进行数据的初传或者重传。
可选地，S320，接收来自第三终端设备的第二信息，第二信息包括第三优先级值，第三优先级值用于第二信息对应的数据的优先级。
应理解，第二信息和第三优先级的相应的解释可以参考S310，在此不做赘述。
可选地，S330，第一终端设备根据第一优先级值，确定第一COT资源。
作为一种可能的实现方式，根据第一优先级值和第三优先级值，确定第一COT资源。
具体地，根据第一集合中最大的优先级值，抢占第一信道占用时间资源，第一集合包括第一优先级值、第三优先级值和第一终端设备发送的数据对应的优先级值，或者第一集合包括第一优先级值和第三优先级值，第二优先级值为最大的优先级值。
作为一种可能的实现方式，根据第一优先级值，确定第二终端设备为第一信道占用时间资源对应的分享对象，第二优先级值为第一终端设备发送的数据对应的优先级值。
可选地，S340，第一终端设备确定第一分享指示信息。
S350，第一终端设备向第二终端设备发送第一分享指示信息，其中，第一分享指示信息用于指示给第二终端设备的第一分享资源，第二优先级值大于或等于第一优先级值，第二优先级值用于指示第一COT资源对应的优先级，第一COT资源包括第一分享资源。
其中，第二优先级值还可以理解为第一终端设备使用第二优先级值抢占获得的第一COT资源。
可选地，S360，第二终端设备根据第一分享指示信息，发送第四数据，其中第四数据对应的优先级值小于或等于第二优先级值。
在本申请实施例中，通过获取其他终端设备发送的数据对应的优先级值，并确定分享指示信息，指示信息中指示的资源的优先级值大于或等于其他终端设备对应的优先级值，有助于保证其他终端设备正常使用获得的COT分享资源中的分享资源，从而提高非授权频谱的传输效率。
下面将结合图4至图7展开说明图3中所示的通信方法。
图4是本申请实施例提供的一种通信方法交互示意图。图4中的优先级值为信道接入优先级值，为了便于阅读，下文中使用CAPC值表示信道接入优先级值。图4以第一信息为侧链路控制信息为例进行说明，本申请实施例并不对携带优先级值的信息做限定。
S401，第二终端设备确定第一预留资源的位置。
作为一种可能的实现方式，当第二终端设备获取侧链路资源的工作模式为第二模式(例如，Mode 2)时，第二终端设备获取侧链路资源池配置，从侧链路资源池配置中选择第一预留资源的位置，其中选择的方式可以是随机选择或者基于监听结果进行选择。
具体地，第二终端设备从基站接收侧链路资源池配置，或者第二终端设备从预配置中获取侧链路资源池配置。
更加具体地，当第二终端设备的媒体接入控制(media access control,MAC)实体被高层配置为第二模式(例如，Mode 2)的方式去获取资源，第二终端设备将会在所配置的资源池里通过资源感知和资源选择的方式获取资源。
第二终端设备在通过感知获得预留资源的位置信息，这些预留的资源特点是在时间上是周期性，资源预留周期大小是Prsvp_TX并且这些资源的数量是由周期性决定的。具体来说，当第二终端设备的配置参数侧链路多预留资源(sl-MultiReserveResource)的状态是使能时，资源周期的配置参数侧链路资 源预留周期(SL-ResourceReservePeriod)中的值就是Prsvp_TX。当Prsvp_TX的值大于100ms，MAC层会在[5,15]之间选择一个数作为预留资源的数量。当Prsvp_TX的值小于100ms，MAC层会在 之间选择一个数作为资源预留的数量。这些预留的资源用于数据的初传(initial transmission)。在发送数据时，第二终端设备的第一SCI中会包含一个资源预留周期(Resource reservation period)字段，这个字段是侧链路高层配置参数侧链路资源预留周期表(sl-ResourceReservePeriodList)中的一个资源预留周期。
对于重传，第二终端设备会在发送数据时携带SCI信息。这个SCI信息会包含一个时间资源配置(Time resource assignment)字段，指示用于所发数据重传对应的资源位置。当高层参数最大预留资源数目(MaxNumPerReserve)配置为2时，表示第二终端设备对一个初传资源还会配一个预留资源，这一个预留资源用与初传后第二终端设备收到混合自动重传请求否定应答(hybrid automatic repeat request negative acknowledgement,HARQ NACK)或者非连续传输(discontinuous transmission,DTX)时的重传。当高层参数最大预留资源数目配置为3时，表示第二终端设备对一个初传资源还会配两个资源，这两个资源用与初传后第二终端设备收到HARQ NAKC或者DTX时的重传。
应理解，本申请实施例对第二终端设备确定第一预留资源的方式不作限定。
图5是本申请实施例提供的一种第一预留资源示意图。
如图5所示，第二终端设备通过上述方式确定第一预留资源，其中，第一预留资源包括至少一个第一预留资源块。应理解，第一预留资源块之间在时域上的间隔，可以是相等的，也可以是不相等的，图5仅为示意作用，并不对此起限制作用。另外，第一预留资源中每个第一预留资源块在时域上所占的时隙数可以为一个或多个，每个第一预留资源块对应的时隙数可以相同或不同，本申请实施例对此不作限制。
S402，第二终端设备向第一终端设备发送第一SCI，第一终端设备接收来自第二终端设备的第一SCI，其中，第一SCI包括第一CAPC值和第一预留资源的位置，第一CAPC值用于指示第一SCI对应的数据的信道接入优先级。
其中，第一CAPC值还可以理解为第一SCI指示的第一预留资源的CAPC值，第一预留资源可以用于进行数据的重传或者初传，本申请实施例对此不作限制。
应理解，第一CAPC值是根据第一SCI对应的第三数据确定的，具体的确定过程可以参考前文术语解释中的“信道接入优先级”。
S403，第三终端设备确定第二预留资源的位置。
应理解，第三终端设备确定第二预留资源的位置的具体方式可以参考S401，本申请实施例并不对S401和S403的执行顺序做限制。
S404，第三终端设备向第一终端设备发送第二SCI，其中，第二SCI包括第三CAPC值和第二预留资源的位置，第三CAPC值用于指示第二SCI对应的数据的信道接入优先级。
应理解，S404的具体解释可以参考S402，另外，本申请实施例并不对S402和S404的执行顺序做限制。
S405，第一终端设备根据第一集合中最大的CAPC值，抢占第一COT资源，其中，第一集合包括第一CAPC值、第三CAPC值和第一终端设备发送的数据对应的CAPC值，或者第一集合包括第一CAPC值和第三CAPC值。
应理解，如果第一终端设备在接收到第一SCI时，也需要发送数据，那么第一集合包括第一CAPC值、第三CAPC值和第一终端设备发送的数据对应的CAPC值。此时，如果最大的CAPC值为第一终端设备发送的数据对应的CAPC值，那么第一终端设备发送的数据对应的信道接入优先级在该集合中是最低，其他终端设备可以正常使用该第一COT资源。如果最大的CAPC值不为第一终端设备发送的数据对应的CAPC值，那么第一终端设备发送的数据对应的信道接入优先级相比于第一COT资源对应的信道接入优先级更高，第一终端设备可以正常使用该第一COT资源的同时，其他终端设备也可以正 常使用该第一COT资源。
如果第一终端设备在接收到第一SCI时，不需要发送数据，那么第一集合包括第一CAPC值和第三CAPC值。
可选地，如果第一终端设备在接收到第一SCI时，也需要发送数据，那么在抢占第一COT资源之前，第一终端设备获取第一终端设备发送的数据对应的CAPC值，具体确定CAPC值的过程可以参考前文。需要说明的是，本申请实施例并不对第一终端设备发送的数据的发送对象做限定，该发送对象可以是第二终端设备，也可以是其他终端设备。
作为一种可能的实现方式，第一终端设备使用第一集合中最大的CAPC值，通过Type 1的LBT监听信道，从而抢占第一COT资源。
当第一终端设备抢占的第一COT资源也用于第一终端设备送自己的数据时，由于第一COT资源是一段时间资源，当第一终端设备使用抢占的第一COT资源发送完自己的数据之后，第一COT资源仍然有富余时间，为了充分使用第一COT资源，第一终端设备可以将抢占的第一COT资源分享给其他终端设备发送数据。其中，其他终端设备通过分享获得的第一COT资源发送的数据，可以发送给第一终端设备，也可以发给其他终端设备，本申请实施例对此不作限制。
应理解，第一终端设备还可以给其他终端设备分享第一COT资源，本申请实施例对第一终端设备接收的CAPC值的终端设备个数不作限制，如果第一终端设备给其他终端设备分享第一COT资源时，那么第一集合中包括其他终端设备给第一终端设备发送的CAPC值，第一终端设备会获取其他终端设备发送的SCI。
还应理解，如果仅第二终端设备给第一终端设备发送第一SCI，那么在第一终端设备在抢占第一COT资源时，第一集合可以包括第一CAPC值，或者可以包括第一CAPC值和第一终端设备发送的数据对应的CAPC值。
S406，第一终端设备确定第二终端设备是否为第一COT资源的分享对象。
作为一种可能的实现方式，根据第一预留资源的位置、第二预留资源位置和第一COT资源，确定第二终端设备是否为第一COT资源的分享对象，第一预留资源包括至少一个第一预留资源块。
具体地，如果至少一个第一预留资源块的位置满足第一COT资源的分享条件，那么确定第二终端设备为第一COT资源的分享对象，其中分享条件为不同预留资源对应的资源块相互之间的时间间隔符合LBT的Type2的时间间隔，并且，第一COT资源覆盖不同预留资源对应的部分或全部的资源块，此外，第一SCI相关数据对应的数据优先级值也需要小于或等于第一终端设备发送的数据对应的数据优先级值。其中，LBT的Type2的时间间隔，例如，可以为Type2A的时间间隔区间为[16us,25us]，可以为Type2B的时间间隔为16us，还可以为Type2C的时间间隔为(0s,16us]。
如果所有第一预留资源块的位置不满足第一COT资源的分享条件，那么确定第二终端设备不是第一COT资源的分享对象。
需要说明的是，第一终端设备还可以给其他终端设备分享第一COT资源，此时，第一终端设备同样需要确定其他终端设备是否为第一COT资源的分享对象，此时其他终端设备对应的预留资源块的位置相互之间需要满足第一COT资源的分享条件。
应理解，第一终端设备同样也可以通过上述方式判断第三终端设备是否为第一COT资源的分享对象，为了简洁，在此不做赘述。
示例性地，图6是本申请实施例提供的一种符合分享条件的终端设备对应的第一分享资源在COT资源上的位置示意图。
通过上述方式，确定将第一终端设备抢占的第一COT资源中的部分资源分享给第二终端设备和第三终端设备。如图6所示，资源块1为第一终端设备发送的数据对应的资源块，资源块2和资源块4为分享给第二终端设备的第一分享资源，资源块3为分享给第三终端设备的第三分享资源。资源块1、资源块2、资源块3和资源块4相互之间的时间间隔都符合LBT的Type2的时间间隔，同时，资源块1、资源块2、资源块3和资源块4都覆盖在第一COT资源内。
还应理解，如果仅第二终端设备给第一终端设备发送第一SCI，那么在确定第二终端设备为第一COT资源的分享对象时，第一终端设备仅需要根据第一预留资源的位置和第一COT资源来确定。
S407，如果第二终端设备为第一COT资源的分享对象，那么第一终端设备确定第一分享指示信息， 第一分享指示信息包括第一分享资源的位置和/或在第一分享资源的位置处的LBT的类型。
其中，第二CAPC值为第一终端设备抢占第一COT资源时使用的CAPC值，也就是S405中的最大的CAPC值。
其中，第一分享资源为至少一个第一预留资源块中满足所述第一COT资源的分享条件的资源，例如，图6中的资源块2和资源块4。
示例性地，在第一分享资源的位置处的LBT类型可以是LBT的Type2A、LBT的Type2B和LBT的Type2C中的任意一种。
可选地，第一分享指示信息还可以包括第二CAPC值。
应理解，如果第三终端设备也为第一COT资源的分享对象，同样也需要确定COT分享指示信息，该COT分享指示信息中的内容和第一分享指示信息相似，为了简洁，在此不做赘述。
S408，第一终端设备向第二终端设备发送第一分享指示信息，第二终端设备接收来自第一终端设备的第一分享指示信息。
应理解，如果第三终端设备也为第一COT资源的分享对象，同样也需要发送确定的COT分享指示信息。
S409，第二终端设备根据第一分享指示信息，在第一分享资源上发送第四数据。
作为一种可能的实现方式，如果第一分享资源用于数据的初传，那么可以根据第一分享指示信息中的第二CAPC值组包第四数据，并在第一分享资源上发送第四数据。
或者，由于第二CAPC值大于或等于第一CAPC值，因此，还可以根据第一CAPC值组包第四数据，并在第一分享资源上发送第四数据。
其中，根据第一CAPC值组包可以理解为MAC层在组装传输块时，使得最终得到的数据传输块的CAPC值为第一CAPC值。
作为一种可能的实现方式，如果第一分享资源用于数据的重传，那么直接在第二预留资源上发送第四数据，第四数据为第一SCI对应的数据，也就是第四数据为第三数据。
应理解，第二终端设备可以将第四数据发给第一终端设备或其他终端设备，第四数据的发送对象取决于第四数据本身，本申请实施例对此不作限制。
作为一种可能的实现方式，图4中的优先级值为信道接入优先级值，如果优先级值为数据优先级值，那么第一终端设备可以通过其他终端设备的数据优先级值，来抢占第一COT资源，具体过程可以参考图4。其中，数据优先级值用于指示数据本身的优先级。
在本申请实施例中，第一终端设备通过获知其他终端设备的优先级值，并从中选择最大的优先级值来抢占COT资源。由于抢占该COT资源时使用的优先级值最大，因此，其他终端设备在接收到分享指示信息指示的分享资源后，可以正常使用COT资源中的分享资源，从而提高非授权频谱的传输效率。
图7是本申请实施例提供的另一种通信方法交互示意图。图7中的优先级值为信道接入优先级值，为了便于阅读，下文中使用CAPC值表示信道接入优先级值。图4以第一信息为侧链路控制信息为例进行说明，本申请实施例并不对携带优先级值的信息做限定。
S701，第二终端设备确定第一预留资源的位置。
S702，第二终端设备向第一终端设备发送第一SCI，第一终端设备接收来自第二终端设备的第一SCI，其中，第一SCI包括第一CAPC值和第一预留资源的位置，第一CAPC值用于指示第一SCI对应的数据的信道接入优先级。
S703，第三终端设备确定第二预留资源的位置。
S704，第三终端设备向第一终端设备发送第二SCI，第一终端设备接收来自第三终端设备的第二SCI，其中，第二SCI包括第三CAPC值和第二预留资源的位置，第三CAPC值用于指示第二SCI对应的数据的信道接入优先级。
应理解，S701和S703具体的实现方式和S401相似，S702和S704具体的实现方式和S402相似，为了简洁，在此不做赘述。
还应理解，本申请实施例对S701和S703的执行顺序不作限制，本申请实施例对S702和S704的执行顺序也不作限制。
S705，第一终端设备确定第二终端设备是否为第一COT资源的分享对象。
其中，第一COT资源是根据第一终端设备发送的数据对应的CAPC值抢占的，而本身对第一COT资源的抢占时机不作限制。例如，第一终端设备可以是在获取其他终端设备发送的数据对应的CAPC值之前就已经抢占好第一COT资源，也可以是在获取其他终端设备发送的数据对应的CAPC值之后，第一终端设备依然可以根据自身发送的数据对应的CAPC值抢占第一COT资源。
第一终端设备可以从两方面确定第二终端设备是否为第一COT资源的分享对象，第一方面是通过第二终端设备的第一预留资源的位置来判断；第二方面是通过比较第一CAPC值和第一终端设备发送的数据对应的CAPC值来判断。
对于第一方面的判断方式，第一终端设备根据第一预留资源的位置、第二预留资源位置和第一COT资源，确定第二终端设备是否为第一COT资源的分享对象。具体的判断方式和S406相似，具体可参考S406中的相关描述。
对于第二方面的判断方式，具体可以为，如果第一终端设备发送的数据对应的CAPC值大于或等于第一CAPC值，那么确定第二终端设备为第一COT资源的分享对象。如果第一终端设备发送的数据对应的CAPC值小于第一CAPC值，那么确定第二终端设备不是第一COT资源的分享对象。
应理解，本申请实施例对第一方面和第二方面的判断顺序不作限定。
例如，如果第一终端设备需要对多个终端设备进行判断，那么可以先通过第二方面的判断方式，筛选出符合CAPC值条件的终端设备，再对这些符合CAPC值条件的终端设备进行第一方面的判断。这样可以保证，其他终端设备可以连续使用第一COT资源，从而保证第一COT资源的正常使用。
又如，第一终端设备可以先通过第一方面的判断方式，筛选出符合预留资源位置的终端设备，再对这些终端设备进行第二方面的判断。如果被第二方面的判断方式筛掉的终端设备对应的预留资源块处于第一COT资源的最后连续的时域位置时，被分享第一COT资源的终端设备同样可以连续使用第一COT资源。
S706，如果第二终端设备为第一COT资源的分享对象，那么第一终端设备确定第一分享信息，第一分享信息包括第一分享资源的位置和在第一分享资源的位置处的LBT的类型。
其中，第二CAPC值为第一终端设备发送的数据对应的CAPC值。
其中，第一分享资源为至少一个第一预留资源块中满足所述第一COT资源的分享条件的资源，例如，图6中的资源块2和资源块4。
示例性地，在第一分享资源的位置处的LBT类型可以是LBT的Type2A、LBT的Type2B和LBT的Type2C中的任意一种。
可选地，第一分享指示信息还可以包括第二CAPC值。
应理解，如果第三终端设备也为第一COT资源的分享对象，同样也需要确定COT分享指示信息，该COT分享指示信息中的内容和第一分享指示信息相似，为了简洁，在此不做赘述。
S707，第一终端设备向第二终端设备发送第一分享指示信息，第二终端设备接收来自第一终端设备的第一分享指示信息。
应理解，如果第三终端设备也为第一COT资源的分享对象，同样也需要发送确定的COT分享指示信息。
S708，第二终端设备根据第一分享指示信息，在第一分享资源上发送第四数据。
应理解，S708和S409相似，相关描述可以参考S409，为了简洁，在此不做赘述。
作为一种可能的实现方式，图7中的优先级值为信道接入优先级值，如果优先级值为数据优先级值，那么第一终端设备可以通过第一终端设备发送的数据对应的数据优先级值，来抢占第一COT资源，具体过程可以参考图7。其中，数据优先级值用于指示数据本身的优先级。
在本申请实施例中，第一终端设备通过自身发送的数据对应的优先级值，抢占了一个COT资源，由于第一终端设备获取了其他终端设备(例如，第二终端设备)对应的优先级值，因此，第一终端设备可以通过比较其他终端设备对应的优先级值和抢占该COT资源使用的优先级值，来确定该COT资源中的资源分享对象。其他终端设备在接收到分享指示信息指示的分享资源后，可以正常使用COT资源中的分享资源，从而提高非授权频谱的传输效率。
图8是本申请实施例提供的另一种通信方法流程示意图。
可选地，S801，第一终端设备确定第二分享指示信息。
S802，第一终端设备向第二终端设备发送第二分享指示信息，第二分享指示信息用于指示第二终端设备获得的第二分享资源，第二分享指示信息包括目标信道接入优先级值，目标信道接入优先级值用于指示第二信道占用时间资源对应的信道接入优先级，第二信道占用时间资源包括第二分享资源。
S803，第二终端设备根据目标信道接入优先级值，在第二分享资源上发送第一数据。
下面将结合图9对图8的通信方法进行详细说明。为了便于阅读，在图9中使用“目标CAPC值”表示目标信道接入优先级值。
图9是本申请实施例提供的又一种通信方法交互示意图。
S901，第二终端设备确定第三预留资源的位置。
应理解，S901确定第三预留资源的位置的实现方式和S401类似，为了简洁，在此不做赘述。
S902，第二终端设备向第一终端设备发送第三信息，第一终端设备接收来自第二终端设备的第三信息，其中，第三信息包括第三预留资源的位置。
示例性地，第三信息可以是侧链路控制信息，或者其他携带第三预留资源的位置的信息，本申请实施例对此不作限制。
S903，第一终端设备确定第二终端设备是否为第二COT资源的分享对象。
应理解，第二COT资源是第一终端设备根据发送的数据对应的CAPC值抢占的。
通过第二终端设备的第三预留资源的位置和第二COT资源，以及第三SCI对应的数据优先级值和第一终端设备发送的数据对应的数据优先级值，来确定第二终端设备是否为第二COT资源的分享对象，该判断方式和S406相似，具体可参考S406中的描述。
S904，如果第二终端设备为第二COT资源的分享对象，那么第一终端设备确定第二分享指示信息，第二分享指示信息用于指示第二终端设备获得的第二分享资源，第二分享指示信息包括目标CAPC值。
其中，目标CAPC值为第一终端设备发送的第二数据对应的CAPC值。
第二分享指示信息还包括第二分享资源的位置和/或在第二分享资源的位置处的LBT的类型。
示例性地，在第一分享资源的位置处的LBT类型可以是LBT的Type2A、LBT的Type2B和LBT的Type2C中的任意一种。
其中，第二分享资源为第三预留资源中至少一个满足COT资源的分享条件的预留资源块。COT资源的分享条件为第二终端设备的第三预留资源至少一个资源块在第二COT资源具有连续性、在时域上第二终端设备的第三预留资源涵盖在第二COT资源内以及第二数据的数据优先级值小于或等于第一终端设备在第二COT资源上发送的数据对应的数据优先级值。
其中，目标CAPC值用于指示第二COT资源对应的信道接入优先级。
S905，第一终端设备向第二终端设备发送第二分享指示信息，第二终端设备接收来自第一终端设备的第二分享指示信息。
S906，第二终端设备根据第二分享指示信息，在第二分享资源上发送第一数据。
作为一种可能的实现方式，根据目标CAPC值，在第二分享资源上发送第一数据。
其中，第一数据对应的CAPC值小于或等于目标CAPC值。
示例性地，当第二分享资源用于初传时，根据目标CAPC值进行组包，以确定第一数据，并在第二分享资源上发送第一数据。
示例性地，当第二分享资源用于重传时，判断目标CAPC值和第二数据对应的CAPC值的大小，以在第二分享资源上发送第一数据。
其中，第二数据为第四SCI对应的数据，也就是初传数据。
应理解，第二数据对应的CAPC值是第二终端设备在发送第二数据时已经确定的，具体确定方式可以参考前文。
作为一种可能的实现方式，如果第二数据对应的CAPC值小于或等于目标CAPC值，那么确定第一数据为第二数据。
作为一种可能的实现方式，如果第二数据对应的CAPC值大于目标CAPC值，那么根据目标CAPC值组包数据，以得到第一数据。
应理解，第二终端设备可以将第一数据发给第一终端设备或其他终端设备，第一数据的发送对象 取决于第二数据本身，本申请实施例对此不作限制。
在本申请实施例中，第二终端设备根据COT资源对应的优先级值，判断是否对在COT资源的分享资源上发送的数据进行重新组包，可以使得第二终端设备正常使用COT资源，从而提高非授权频谱的传输效率。
目前，在非授权频谱中，接收端UE通过侧链路向发送端UE发送HARQ反馈信息的资源的确定方式有多种。
方式一，发送端UE向接收端UE发送指示信息，该指示信息用于指示发送端UE发送物理侧链路共享信道(physical sidelink shared channel,PSSCH)关联的物理侧链路反馈信道(physical sidelink feedback channel,PSFCH)的资源位置，其中，HARQ反馈信息承载于PSFCH中。
方式二，接收端UE自主决定PSFCH的资源位置，此时，接收端UE向发送端UE发送PSFCH，PSFCH承载了指示信息，该指示信息用于指示PSFCH的资源位置。
当终端设备B既作为第一PSFCH的接收端，又作为第二PSFCH的发送端时，有可能出现第一PSFCH对应的资源和第二PSFCH对应的资源发生重叠，而终端设备B无法提前预知的情况。
图10是本申请实施例提供的另一种通信场景示意图。(实施例四的场景)
如图10所示，在第四终端设备和第五终端设备的交互中，第四终端设备是第一PSSCH的发送端，第四终端设备接收来自第五终端设备的第一PSFCH，如果第一PSFCH对应的资源是第五终端设备决定的，那么第四终端设备无法决定第一PSFCH的资源位置(也就是通过方式二确定的承载HARQ反馈信息的PSFCH的资源)。在第四终端设备和第六终端设备的交互中，第四终端设备是第二PSSCH的接收端，第四终端设备需要向第六终端设备发送第二PSFCH，如果第二PSFCH对应的资源是通过来自第六终端设备的资源分享指示信息决定的，那么第四终端设备无法决定第二PSFCH的资源位置(也就是通过方式一确定的承载HARQ反馈信息的PSFCH的资源)。本申请实施例提出了另一种通信方法，具体将结合图11和图12具体说明。
图11是本申请实施例提出的另一种通信方法流程示意图。
S1101，获取第一侧链路反馈信道的第一接收资源，第一侧链路反馈信道用于承载来自第五终端设备的第一混合自动重传请求消息。
应理解，第一接收资源是第五终端设备确定的
作为一种可能的实现方式，接收来自第五终端设备的第一指示信息，第一指示信息用于指示第一侧链路反馈信道的第一接收资源。
S1102，获取第二侧链路反馈信道的第一发送资源，第二侧链路反馈信道用于承载向第六终端设备发送的第二混合自动重传请求消息，第一发送资源是通过第三分享指示信息种的第一发送资源的位置信息指示的。
作为一种可能的实现方式，接收来自第六终端设备的第三分享指示信息，第三分享指示信息用于第二侧链路反馈信道的第一发送资源，其中，第三COT资源包括第一发送资源，第三COT资源是第六终端设备抢占的。
其中，第三分享指示信息包括第一发送资源的位置和/或在第一发送资源的位置处的LBT的类型。
应理解，第三分享指示信息可以以独立消息的形式发送给第四终端设备中，还可以将其承载于第四信息的增加字段中，第四信息与第二侧链路共享信道相对应，本申请实施例对此不作限制。
示例性地，第四信息可以是侧链路控制信息，或者其他类型的信息，本申请实施例对此不作限制。
S1103，当第一接收资源和第一发送资源发生重叠时，根据第一发送资源的位置信息和/或优先级信息，接收第一侧链路反馈信道或发送第二侧链路反馈信道。
应理解，第一接收资源和第一发送资源可以在时域上发生重叠，也可以在频域上发生重叠，本申请实施例对此不作限制。
可选地，S1104，第四终端设备接收来自第五终端设备的第一PSFCH，或者第四终端设备向第五终端设备发送第二PSFCH。
在本申请实施例中，当第一接收资源和第一发送资源发生冲突时，终端设备在冲突资源位置处，制定接收第一侧链路反馈信道还是发送第二侧链路反馈信道的通信策略，可以保证终端设备的正常通信。
下面将结合图12对图11的方案进行详细说明。
图12是本申请实施例提供的再一种通信方法交互示意图。为了便于阅读，图12中使用“第一PSFCH”表示“第一侧链路反馈信道”，使用“第二PSFCH”表示“第二侧链路反馈信道”。
S1201，第四终端设备确定第一PSSCH对应的资源。
作为一种可能的实现方式，当第四终端设备获取侧链路资源的工作模式为第一模式(例如，Mode 1)时，从基站获取第一PSSCH对应的资源的位置。本申请实施例对第一四终端设备确定第一PSSCH对应的资源的方式不作限定。
具体地，第四终端设备从基站接收DCI，该DCI指示第一PSSCH对应的资源的位置。或者，第四终端设备从基站接收无线资源控制(radio resource control,RRC)消息，来配置授权第一PSSCH对应的资源的位置。
其中，第一PSSCH用于承载发送给第五终端设备的数据，该数据对应的CAPC值可以称为第五优先级值，该数据对应的数据优先级值也可以称为第五优先级值。
S1202，第四终端设备向第五终端设备发送第一PSSCH，第五终端设备接收来自第四终端设备的第一PSSCH。
应理解，第四终端设备在S1101确定的资源上发送第一PSSCH。
S1203，第五终端设备向第四终端设备发送第一指示信息，第四终端设备接收来自第五终端设备的第一指示信息。
其中，第一指示信息用于指示承载第一HARQ信息的第一PSFCH的第一接收资源的位置。
S1204，第六终端设备向第四终端设备发送第二PSSCH、第四SCI和第三分享指示信息，第四终端设备接收来自第六终端设备的第二PSSCH、第四SCI和第三分享指示信息。
其中，第二PSSCH对应的第四SCI中承载了第三分享指示信息，或者第三分享指示信息以独立消息形式发送给第四终端设备。
第三分享指示信息包括第一发送资源的位置信息，第一发送资源属于第三COT资源，第三COT资源是第六终端设备抢占的。
第三分享指示信息包括承载第二HARQ信息的第二PSFCH的第一发送资源的位置信息和/或在第一发送资源位置处的LBT的类型。
应理解，第二PSSCH用于承载接收来自第六终端设备的数据，该数据对应的CAPC值为称为第四优先级值，该数据对应的数据优先级值也可以称为第四优先级值。其中，第三分享指示信息中可以包括第四优先级值，或者第四SCI中可以包括第四优先级值。
S1205，第四终端设备获取第一PSFCH对应的第一接收资源和第二PSFCH的第一发送资源。
S1206，当第一接收资源的位置和第一发送资源的位置重叠时，第四终端设备根据第一发送资源的位置信息和/或优先级信息，接收第一PSFCH或发送第二PSFCH。
其中，第一接收资源的位置和第一发送资源位置的重叠可以理解为第一接收资源和第一发送资源发生了部分重叠或者全部重叠，此时第四终端设备无法同时接收第一PSFCH和发送第二PSFCH。
作为一种可能的实现方式，根据第一发送资源的位置信息，在第一发送资源上发送第二PSFCH。
具体地，当第一接收资源和第一发送资源发生重叠时，第四终端设备在第一发送资源上发送第二PSFCH，第一发送资源的位置信息用于指示第一发送资源的绝对位置信息。
其中，第一发送资源的绝对位置信息可以理解为第四终端设备可以直接根据该绝对位置在第一发送资源上发送第二PSFCH。
这样，当第一接收资源和第一发送资源发生时域资源冲突时，终端设备在冲突资源位置处，优先在第一发送资源处发送第二PSFCH，可以优先保证COT资源的正常使用，从而提高非授权频谱的传输效率，同时也保证了终端设备的正常通信。
当第一接收资源和第一发送资源发生重叠时，如果第一发送资源不处于第三信道占用时间资源的最后的时域位置，那么在第一发送资源上发送第二PSFCH，其中，第一发送资源的位置信息还用于指示第一发送资源在第三信道占用时间资源中的位置。
这样，当资源重叠位置不在第三COT资源内最后的时域资源位置处时，终端设备优先在第三COT资源内的第一发送资源处发送第二PSFCH，可以优先保证COT资源的正常使用，从而提高非授权频 谱的传输效率，同时也保证了终端设备的正常通信。
作为一种可能的实现方式，根据第一发送资源的位置信息和优先级信息，接收第一PSFCH或发送第二PSFCH。
其中，优先级信息包括第一PSFCH的第一接收资源和第二PSFCH的第一发送资源对应的CAPC的值，或者优先级信息包括第一PSFCH和第二PSFCH对应的数据优先级的值。
作为一种可能的实现方式，如果第一发送资源处于第三COT资源内最后的时域资源位置，那么根据优先级信息，确定接收第一PSFCH或发送第二PSFCH。
应理解，相同类型的优先级的值才能进行比较。
示例性地，如果第四优先级值小于或等于第五优先级值，在第一发送资源上发送第二PSFCH。
第四优先级值为第二PSFCH对应的CAPC的值，第五优先级值为第一PSFCH对应的CAPC值。
其中，第四优先级值为第二PSFCH对应的CAPC的值可以理解为第六终端设备在抢占第三COT资源时使用的CAPC值，第四优先级值可以携带在第三分享指示信息或者第四SCI中。
其中，第五优先级值为第一PSFCH对应的CAPC值可以理解为第一PFSCH承载的第一HARQ信息对应的传输块的CAPC值，第五优先级值为第四终端设备确定的。
或者，第四优先级值为第二PSFCH对应的数据优先级值，第五优先级值为第一PSFCH对应的数据优先级值。
应理解，数据优先级越高，数据优先级值越小。第一PSFCH对应的数据优先级值和第一PSSCH对应的数据优先级值相同。第二PSFCH对应的数据优先级值和第二PSSCH对应的数据优先级值相同
其中，第一PSSCH的优先级的值是第四终端设备自己确定的。第二PSSCH的优先级的值可以携带在承载于第二PSSCH中的信息中，例如，第四CSI中。
示例性地，如果第四优先级值小于或等于第五优先级值，在第一发送资源上发送第二PSFCH，那么在第一接收资源上接收第一PSFCH。
这样，当资源重叠位置处于第三COT资源内最后的时域资源位置处时，即使不优先使用在第三COT资源内的第一发送资源处发送第二PSFCH，也不会对其他获得第三COT资源的终端设备产生影响，因此，终端设备通过对第四优先级值和第五优先级值的比较，可以给出更加合适的通信策略，从而保证终端设备的正常通信。
作为一种可能的实现方式，根据优先级信息，接收第一PSFCH或发送第二PSFCH。
第四终端设备可以直接根据上述优先级信息，接收第一PSFCH或发送第二PSFCH，具体判断过程可以参考前文内容，在此不做赘述。
相应于上述各方法实施例给出的方法，本申请实施例还提供了相应的装置，该装置包括用于执行上述各个方法实施例相应的单元。该单元可以是软件，也可以是硬件，或者是软件和硬件结合。可以理解的是，上述各方法实施例所描述的技术特征同样适用于以下装置实施例。
图13是本申请实施例提供的一种通信方法的装置1300的示意图。该装置1300包括收发单元1310和处理单元1320。收发单元1310可以用于实现相应的通信功能。收发单元1310还可以称为通信接口或通信单元。处理单元1320可以用于实现相应的处理功能，如配置资源。
可选地，该装置1300还包括存储单元，该存储单元可以用于存储指令和/或数据，处理单元1320可以读取存储单元中的指令和/或数据，以使得装置实现前述各个方法实施例中设备或网元的动作。
在第一种设计中，该装置1300可以是前述实施例中的第一终端设备(如图6和图7中的第一终端设备)，也可以是第一终端设备的组成部件(如芯片)。该装置1300可实现对应于上文方法实施例中的第一终端设备执行的步骤或者流程，其中，收发单元1310可用于执行上文方法实施例中第一终端设备的收发相关的操作，处理单元1320可用于执行上文方法实施例中第一终端设备的处理相关的操作。
一种可能的实现方式，收发单元1310，用于接收来自第二终端设备的第一信息，第一信息包括第一优先级值，第一优先级值用于指示第一信息对应的数据的优先级；收发单元1310，还用于向第二终端设备发送第一分享指示信息，第一分享指示信息用于指示给第二终端设备的第一分享资源，第二优先级值大于或等于第一优先级值，第二优先级值用于指示第一信道占用时间资源对应的优先级，第一信道占用时间资源包括第一分享资源。可选地，处理单元1320，用于确定第一分享指示信息。
应理解，各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明，为了简洁， 在此不再赘述。
在第二种设计中，该装置1300可以是前述实施例中的第二终端设备(如图8中的第二终端设备)，也可以是第二终端设备的组成部件(如芯片)。该装置1300可实现对应于上文方法实施例中的第二终端设备执行的步骤或者流程，其中，收发单元1310可用于执行上文方法实施例中第二终端设备的收发相关的操作，处理单元1320可用于执行上文方法实施例中第二终端设备的处理相关的操作。
一种可能的实现方式，收发单元1310用于，接收第二分享指示信息，第二分享指示用于指示第二终端设备获得的第二分享资源，第二分享指示信息包括目标信道接入优先级值，目标信道接入优先级值用于指示第二信道占用时间资源对应的信道接入优先级，第二信道占用时间资源包括第二分享资源。收发单元还用于，根据目标信道接入优先级值，在第二分享资源上发送第一数据。可选地，处理单元1320，用于确定第一数据。
应理解，各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明，为了简洁，在此不再赘述。
在第三种设计中，该装置1300可以是前述实施例中的第四终端设备(如图11中的第四终端设备)，也可以是第四终端设备的组成部件(如芯片)。该装置1300可实现对应于上文方法实施例中的第四终端设备执行的步骤或者流程，其中，收发单元1310可用于执行上文方法实施例中第四终端设备的收发相关的操作，处理单元1320可用于执行上文方法实施例中第四终端设备的处理相关的操作。
一种可能的实现方式，处理单元1320用于，获取第一侧链路反馈信道的第一接收资源，第一侧链路反馈信道用于承载来自第五终端设备的第一混合自动重传请求消息。处理单元1320还用于，获取第二侧链路反馈信道的第一发送资源，第二侧链路反馈信道用于承载向第六终端设备发送的第二混合自动重传请求消息，第一发送资源是通过第三分享指示信息种的第一发送资源的位置信息指示的。当第一接收资源和第一发送资源发生重叠时，收发单元1310用于，根据第一发送资源的位置信息和/或优先级信息，接收第一侧链路反馈信道或发送第二侧链路反馈信道。
应理解，各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明，为了简洁，在此不再赘述。
还应理解，这里的装置1300以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置1300可以具体为上述实施例中的第一终端设备，可以用于执行上述各方法实施例中与第一终端设备对应的各个流程和/或步骤；或者，装置1300可以具体为上述实施例中的第二终端设备，可以用于执行上述各方法实施例中与第二终端设备对应的各个流程和/或步骤；或者，装置1300可以具体为上述实施例中的第四终端设备，可以用于执行上述各方法实施例中与第四终端设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
上述各个方案的装置1300具有实现上述方法中设备(如第一终端设备，又如第二终端设备，再如第四终端设备)所执行的相应步骤的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块；例如收发单元可以由收发机替代(例如，收发单元中的发送单元可以由发送机替代，收发单元中的接收单元可以由接收机替代)，其它单元，如处理单元等可以由处理器替代，分别执行各个方法实施例中的收发操作以及相关的处理操作。
此外，上述收发单元1310还可以是收发电路(例如可以包括接收电路和发送电路)，处理单元可以是处理电路。
需要指出的是，图13中的装置可以是前述实施例中的网元或设备，也可以是芯片或者芯片系统，例如：片上系统(system on chip，SoC)。其中，收发单元可以是输入输出电路、通信接口；处理单元为该芯片上集成的处理器或者微处理器或者集成电路。在此不做限定。
图14是本申请实施例提供另一种通信装置1400的示意图。该装置1400包括处理器1410，处理器1410用于执行存储器1420存储的计算机程序或指令，或读取存储器1420存储的数据/信令，以执行上文各方法实施例中的方法。可选地，处理器1410为一个或多个。
可选地，如图14所示，该装置1400还包括存储器1420，存储器1420用于存储计算机程序或指令 和/或数据。该存储器1420可以与处理器1410集成在一起，或者也可以分离设置。可选地，存储器1420为一个或多个。
可选地，如图14所示，该装置1400还包括收发器1430，收发器1430用于信号的接收和/或发送。例如，处理器1410用于控制收发器1430进行信号的接收和/或发送。
作为一种方案，该装置1400用于实现上文各个方法实施例中由第一终端设备执行的操作。
例如，处理器1410用于执行存储器1420存储的计算机程序或指令，以实现上文各个方法实施例中第一终端设备的相关操作。
作为另一种方案，该装置1400用于实现上文各个方法实施例中由第二终端设备执行的操作。
例如，处理器1410用于执行存储器1420存储的计算机程序或指令，以实现上文各个方法实施例中第二终端设备的相关操作。例如，图8或图9所示实施例中的第二设备执行的方法。
作为又一种方案，该装置1400用于实现上文各个方法实施例中由第四终端设备执行的操作。
例如，处理器1410用于执行存储器1420存储的计算机程序或指令，以实现上文各个方法实施例中第四终端设备的相关操作。例如，图11或图12所示实施例中的第四设备执行的方法。
应理解，本申请实施例中提及的处理器可以是中央处理单元(central processing unit，CPU)，还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中提及的存储器可以是易失性存储器和/或非易失性存储器。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)。例如，RAM可以用作外部高速缓存。作为示例而非限定，RAM包括如下多种形式：静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
需要说明的是，当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时，存储器(存储模块)可以集成在处理器中。
还需要说明的是，本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
图15是本申请实施例提供一种芯片系统1500的示意图。该芯片系统1500(或者也可以称为处理系统)包括逻辑电路1510以及输入/输出接口(input/output interface)1520。
其中，逻辑电路1510可以为芯片系统1500中的处理电路。逻辑电路1510可以耦合连接存储单元，调用存储单元中的指令，使得芯片系统1500可以实现本申请各实施例的方法和功能。输入/输出接口1520，可以为芯片系统1500中的输入输出电路，将芯片系统1500处理好的信息输出，或将待处理的数据或信令信息输入芯片系统1500进行处理。
具体地，例如，若第一终端设备(图3、图4或图7所示的第一终端设备)安装了该芯片系统1500，逻辑电路1510与输入/输出接口1520耦合，逻辑电路1510可通过输入/输出接口1520发送第一分享指示信息，该第一分享指示信息可以为逻辑电路1510配置的；或者输入/输出接口1520可将第第一信息输入至逻辑电路1510进行处理。又如，若第二终端设备(图3、图4或图7所示的第二终端设备)安装了该芯片系统1500，逻辑电路1510与输入/输出接口1520耦合，逻辑电路1510可通过输入/输出接口1520接收第一分享指示信息。
作为一种方案，该芯片系统1500用于实现上文各个方法实施例中由第一终端设备执行的操作。
例如，逻辑电路1510用于实现上文方法实施例中由第一终端设备执行的处理相关的操作；输入/输出接口1520用于实现上文方法实施例中由第一终端设备执行的发送和/或接收相关的操作。
作为另一种方案，该芯片系统1500用于实现上文各个方法实施例中由第二终端设备执行的操作。
例如，逻辑电路1510用于实现上文方法实施例中由第二终端设备执行的处理相关的操作。如，图8或图9所示实施例中的第二终端设备执行的处理相关的操作，输入/输出接口1520用于实现上文方法实施例中由第二终端设备执行的发送和/或接收相关的操作，如，图8或图9所示实施例中的第二终端设备执行的发送和/或接收相关的操作。
作为又一种方案，该芯片系统1500用于实现上文各个方法实施例中由第四终端设备执行的操作。
例如，逻辑电路1510用于实现上文方法实施例中由第四终端设备执行的处理相关的操作。如，图11或图12所示实施例中的第四终端设备执行的处理相关的操作，输入/输出接口1520用于实现上文方法实施例中由第四终端设备执行的发送和/或接收相关的操作，如，图11或图12所示实施例中的第四终端设备执行的发送和/或接收相关的操作。
本申请实施例还提供一种计算机可读存储介质，其上存储有用于实现上述各方法实施例中由设备执行的方法的计算机指令。
例如，该计算机程序被计算机执行时，使得该计算机可以实现上述方法各实施例中由第一终端设备执行的方法。
又如，该计算机程序被计算机执行时，使得该计算机可以实现上述方法各实施例中由第二终端设备执行的方法。
又如，该计算机程序被计算机执行时，使得该计算机可以实现上述方法各实施例中由第四终端设备执行的方法。
本申请实施例还提供一种计算机程序产品，包含指令，该指令被计算机执行时以实现上述各方法实施例中由设备(如第二终端设备，又如第一终端设备，又如第四终端设备)执行的方法。
本申请实施例还提供一种通信的系统，包括前述的第一终端设备、第二终端设备和第三终端设备中的至少一种。或者包括前述的第四终端设备、第五终端设备和第六终端设备。
上述提供的任一种装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例，此处不再赘述。
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。此外，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。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。例如，所述计算机可以是个人计算机，服务器，或者网络设备等。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD)等。例如，前述的可用介质包括但不限于：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、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以所述权利要求的保护范围为准。

Claims (30)

  1. 一种通信方法，其特征在于，所述方法应用于第一终端设备，包括：
    接收来自第二终端设备的第一信息，所述第一信息包括第一优先级值，所述第一优先级值用于指示所述第一信息对应的数据的优先级；
    向所述第二终端设备发送所述第一分享指示信息，所述第一分享指示信息用于指示给所述第二终端设备的第一分享资源，第二优先级值大于或等于所述第一优先级值，所述第二优先级值用于指示第一信道占用时间资源对应的优先级，所述第一信道占用时间资源包括所述第一分享资源。
  2. 根据权利要求1所述的方法，其特征在于，在向所述第二终端设备发送所述第一分享指示信息之前，所述方法还包括：
    根据所述第一优先级值，确定所述第一信道占用时间资源。
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    接收来自第三终端设备的第二信息，所述第二信息包括第三优先级值，所述第三优先级值用于指示所述第二信息对应的数据的优先级；
    所述根据所述第一优先级值，确定所述第一信道占用时间资源还包括：
    根据所述第一优先级值和第三优先级值，确定所述第一信道占用时间资源。
  4. 根据权利要求3所述的方法，其特征在于，所述根据所述第一优先级值和第三优先级值，确定所述第一信道占用时间资源包括：根据第一集合中最大的优先级值，抢占所述第一信道占用时间资源，所述第一集合包括所述第一优先级值、所述第三优先级值和所述第一终端设备发送的数据对应的优先级值，或者所述第一集合包括所述第一优先级值和所述第三优先级值，所述第二优先级值为所述最大的优先级值。
  5. 根据权利要求2所述的方法，其特征在于，所述根据所述第一优先级值，确定所述第一信道占用时间资源包括：
    根据所述第一优先级值，确定所述第二终端设备为所述第一信道占用时间资源对应的分享对象，所述第二优先级值为所述第一终端设备发送的数据对应的优先级值。
  6. 根据权利要求1至5任一项所述的方法，其特征在于，所述第一分享指示信息包括所述第一分享资源的位置和/或在所述第一分享资源的位置处的先检测后发送LBT的类型。
  7. 根据权利要求6所述的方法，其特征在于，所述第一分享指示信息还包括所述第二优先级值。
  8. 根据权利要求3所述的方法，其特征在于，所述方法还包括：根据所述第一信道占用时间资源、第一预留资源的位置和第二预留资源的位置，确定所述第二终端设备为所述第一信道占用时间资源的分享对象，其中，所述第一信息还包括所述第一预留资源的位置，所述第二信息还包括所述第二预留资源的位置。
  9. 根据权利要求8所述的方法，其特征在于，所述第一分享资源为第一预留资源中满足所述第一信道占用时间资源的分享条件的部分资源或全部资源，其中，所述分享条件包括所述第一预留资源和所述第二预留资源对应的资源块相互之间的时间间隔符合时间间隔条件，所述第一信道占用时间覆盖所述第一预留资源的对应的部分或全部资源块，并且所述第一信息相关数据对应的数据优先级值小于或等于所述第一终端设备发送的数据对应的数据优先级值。
  10. 根据权利要求9所述的方法，其特征在于，所述时间间隔条件包括先检测后发送LBT的信道检测机制中Type 2类型对应的时间间隔。
  11. 一种通信方法，其特征在于，所述方法应用于第二终端设备，包括：
    接收第二分享指示信息，所述第二分享指示信息用于指示所述第二终端设备获得的第二分享资源，所述第二分享指示信息包括目标信道接入优先级值，所述目标信道接入优先级值用于指示第二信道占用时间资源对应的信道接入优先级，所述第二信道占用时间资源包括所述第二分享资源；
    根据所述目标信道接入优先级值，在所述第二分享资源上发送第一数据。
  12. 根据权利要求11所述的方法，其特征在于，
    所述第一数据对应的信道接入优先级值小于或等于所述目标信道接入优先级值。
  13. 根据权利要求12所述的方法，其特征在于，所述根据所述目标信道接入优先级值，在所述第二分享资源上发送第一数据包括：
    当所述第二分享资源用于初传时，根据所述目标信道接入优先级值组包数据，以得到第一数据；
    在所述第二分享资源上发送第一数据。
  14. 根据权利要求12所述的方法，其特征在于，所述根据所述目标信道接入优先级值，在所述第二分享资源上发送第一数据包括：
    当所述第二分享资源用于重传时，如果初传数据对应的信道接入优先级值小于或等于所述目标信道接入优先级值，那么在所述第二分享资源上发送所述第一数据，其中，所述第一数据为所述初传数据。
  15. 根据权利要求12所述的方法，其特征在于，所述根据所述目标信道接入优先级值，在所述第二分享资源上发送第一数据包括：
    当所述第二分享资源用于重传时，如果初传数据对应的信道接入优先级值大于所述目标信道接入优先级值，那么根据所述目标信道接入优先级值组包数据，以得到第一数据；
    在所述第二分享资源上发送所述第一数据。
  16. 一种通信方法，其特征在于，所述方法应用于第四终端设备，包括：
    获取第一侧链路反馈信道的第一接收资源，所述第一侧链路反馈信道用于承载来自第五终端设备的第一混合自动重传请求消息；
    获取第二侧链路反馈信道的第一发送资源，所述第二侧链路反馈信道用于承载向第六终端设备发送的第二混合自动重传请求消息，所述第一发送资源是第三分享指示信息中的第一发送资源的位置信息指示的；
    当所述第一接收资源和所述第一发送资源发生重叠时，根据所述第一发送资源的位置信息和/或优先级信息，接收所述第一侧链路反馈信道或发送所述第二侧链路反馈信道。
  17. 根据权利要求16所述的方法，其特征在于，所述根据所述第一发送资源的位置信息和/或优先级信息，接收所述第一侧链路反馈信道或发送所述第二侧链路反馈信道包括：
    根据所述第一发送资源的位置信息，在所述第一发送资源上发送所述第二侧链路反馈信道。
  18. 根据权利要求17所述的方法，其特征在于，所述根据所述第一发送资源的位置信息，在所述第一发送资源上发送所述第二侧链路反馈信道包括：
    在所述第一发送资源上发送所述第二侧链路反馈信道，所述第一发送资源的位置信息用于指示所述第一发送资源的绝对位置信息。
  19. 根据权利要求17所述的方法，其特征在于，所述根据所述第一发送资源的位置信息，发送所述第二侧链路反馈信道包括：
    所述第一发送资源的位置信息还用于指示所述第一发送资源在第三信道占用时间资源中的位置，所述第三信道占用时间资源是所述第六终端设备确定的；
    如果所述第一发送资源不处于第三信道占用时间资源的最后的时域位置，那么在所述第一发送资源上发送所述第二侧链路反馈信道。
  20. 根据权利要求16所述的方法，其特征在于，所述根据第一发送资源的位置信息和/或优先级信息，接收所述第一侧链路反馈信道或发送所述第二侧链路反馈信道包括：
    根据所述第一发送资源的位置信息和所述优先级信息，接收所述第一侧链路反馈信道或发送所述第二侧链路反馈信道。
  21. 根据权利要求20所述的方法，其特征在于，所述根据所述第一发送资源的位置信息和所述优先级信息，接收所述第一侧链路反馈信道或发送所述第二侧链路反馈信道包括：
    所述第一发送资源的位置信息还用于指示所述第一发送资源在所述第三信道占用时间资源中的位置；
    如果所述第一发送资源处于第三信道占用时间资源的最后的时域位置，那么根据优先级信息，接收所述第一侧链路反馈信道或发送所述第二侧链路反馈信道，
    其中，所述优先级信息包括所述第一侧链路反馈信道和所述第二侧链路反馈信道对应的信道接入优先级的值，或者所述优先级信息包括所述第一侧链路反馈信道和所述第二侧链路反馈信道对应的数 据优先级的值。
  22. 根据权利要求21所述的方法，其特征在于，所述根据优先级信息，接收所述第一侧链路反馈信道或发送所述第二侧链路反馈信道包括：
    如果第四优先级值小于或等于第五优先级值，在所述第一发送资源上发送所述第二侧链路反馈信道；
    其中，所述第四优先级值用于指示所述第二侧链路反馈信道对应的信道接入优先级，所述第五优先级值用于指示所述第一侧链路反馈信道对应的信道接入优先级；或者
    所述第四优先级值用于指示所述第二侧链路反馈信道对应的数据优先级值，所述第五优先级值用于指示所述第一侧链路反馈信道对应的数据优先级值。
  23. 根据权利要求21所述的方法，其特征在于，所述根据优先级信息，接收所述第一侧链路反馈信道或发送所述第二侧链路反馈信道包括：
    如果所述第四优先级值大于所述第五优先级值，在所述第一接收资源上接收所述第一侧链路反馈信道；
    其中，所述第四优先级值用于指示所述第二侧链路反馈信道对应的信道接入优先级，所述第五优先级值用于指示所述第一侧链路反馈信道对应的信道接入优先级；或者
    所述第四优先级值用于指示所述第二侧链路反馈信道对应的数据优先级值，所述第五优先级值用于指示所述第一侧链路反馈信道对应的数据优先级值。
  24. 一种通信装置，其特征在于，包括：
    用于执行如权利要求1至10中任一项所述的方法的单元或模块，或者用于执行如权利要求11至15任一项所述的方法的单元或模块，或者用于执行如权利要求16至23任一项所述的方法的单元或模块。
  25. 一种通信装置，其特征在于，包括：
    处理器，用于执行存储器中存储的计算机程序，以使得所述装置执行如权利要求1至10中任一项所述的方法，或者以使得所述装置执行如权利要求11至15中任一项所述的方法，或者以使得所述装置执行如权利要求16至23中任一项所述的方法。
  26. 根据权利要求24所述的装置，其特征在于，所述装置还包括所述存储器。
  27. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求1至10中任意一项所述的方法，或者以使得所述计算机执行如权利要求11至15中任一项所述的方法，或者以使得所述计算机执行如权利要求16至23中任一项所述的方法。
  28. 一种计算机程序产品，其特征在于，所述计算机程序产品包括用于执行如权利要求1至10中任一项所述的方法的指令，或者，所述计算机程序产品包括用于执行如权利要求11至15中任一项所述的方法的指令，或者，所述计算机程序产品包括用于执行如权利要求16至24中任一项所述的方法的指令。
  29. 一种芯片，其特征在于，包括处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的终端设备，执行如权利要求1至10中任一项所述的方法，或者执行如权利要求11至15中任一项所述的方法，或者执行如权利要求16至24中任一项所述的方法。
  30. 一种通信系统，其特征在于，包括执行如权利要求1至10任一项所述方法的通信装置，或者包括执行如权利要求11至15中任一项所述方法的通信装置，或者包括执行如权利要求16至24中任一项所述方法的通信装置。
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CN111970095A (zh) * 2020-08-03 2020-11-20 中国信息通信研究院 一种确定边链路反馈资源的方法和设备

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