WO2023011218A1 - Procédé de partage de ressources et appareil de communication - Google Patents

Procédé de partage de ressources et appareil de communication Download PDF

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Publication number
WO2023011218A1
WO2023011218A1 PCT/CN2022/107441 CN2022107441W WO2023011218A1 WO 2023011218 A1 WO2023011218 A1 WO 2023011218A1 CN 2022107441 W CN2022107441 W CN 2022107441W WO 2023011218 A1 WO2023011218 A1 WO 2023011218A1
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WIPO (PCT)
Prior art keywords
information
terminal device
resource
time
indicate
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PCT/CN2022/107441
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English (en)
Chinese (zh)
Inventor
黄海宁
黎超
张天虹
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华为技术有限公司
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Publication of WO2023011218A1 publication Critical patent/WO2023011218A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • 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
    • 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
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load
    • 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
    • H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present application relates to the technical field of resource sharing, and in particular to a sidelink resource sharing method and communication device.
  • Resource sharing can be realized between network devices and terminal devices.
  • terminal devices can inform network devices of sharing information, such as whether channel resources can be shared and the duration of channel resources that can be shared.
  • the network device can use the channel resource according to the shared information.
  • the communication between the network device and the terminal device the terminal device sends information to the network device or receives information from the network device after receiving the physical downlink control channel (PDCCH) from the network device. Since the network device knows the position where the terminal device receives the PDCCH, the network device can specify the starting position of the shared resource.
  • PDCCH physical downlink control channel
  • the two communicating parties do not know in advance when the other party sends information.
  • a sidelink sidelink
  • each party does not know when the other party sends information.
  • resource conflict may occur in the sidelink.
  • the present application provides a resource sharing method and a communication device, which are used to reduce or avoid resource sharing conflicts among multiple terminal devices in a sidelink.
  • a resource sharing method that can be executed by a first communication device
  • the first communication device may be a communication device, such as a terminal device, or a communication device capable of supporting the communication device to realize the functions required by the method, such as a chip system .
  • the description below takes the communication device as a first terminal device as an example.
  • the method includes:
  • the first terminal device sends first indication information to the second terminal device, receives first request information from the second terminal device, and sends second indication information to the second terminal device.
  • the first indication information is used to indicate the first resource of the first terminal device.
  • the first request information may include one or more of the following information: first information, first time information, or first priority information.
  • the first information is used to indicate that the second terminal device requests to use the first resource.
  • the first time information is used to indicate the time domain length of the second resource, and the second resource is a part of the first resource.
  • the first priority information is used to indicate the priority of the data to be sent by the second terminal device.
  • the second indication information includes one or more of the following information: third information, sharing time information, offset information, or identification information.
  • the third information is used to indicate whether the second terminal device can use the first resource.
  • the shared time information includes third time information, where the third time information is used to indicate the time domain length of the third resource, and the third resource is a part of the first resource.
  • the offset information includes a first offset value, and the first offset value is used to determine the start position of the third resource in the time domain.
  • the identification information includes a first identification, and the first identification is used to indicate the second terminal device.
  • the first terminal device notifies the second terminal device that the first terminal device has a first resource that can be shared, for example, the initial channel occupancy time (channel occupation time, COT) of the first terminal device.
  • the COT may be understood as a time domain resource corresponding to the COT, may also be understood as a frequency domain resource corresponding to the COT, and may also be understood as a time-frequency resource corresponding to the COT.
  • the second terminal device may request to share part of the first resource, such as the second resource, through the first request information.
  • the first terminal device responds to the first request information, that is, sends the second indication information to the second terminal device to indicate that the second terminal device can share the first resource, thereby increasing the high priority and priority of sideline data transmission of the second terminal device service quality, and improve the flexibility of resource utilization.
  • the second indication information indicates the start time domain position and the time domain length of the third resource that is allowed to be shared by the second terminal device in the first resource, thereby avoiding resource conflicts when sharing the first resource with other terminal devices.
  • the method further includes: the first terminal device sending first indication information to the third terminal device, and receiving second request information from the third terminal device.
  • the second request information includes one or more of the following information: second information, second time information, or second priority information.
  • the third information is used to indicate that the third terminal device requests to use the first resource.
  • the second time information is used to indicate the time domain length of the fourth resource, where the fourth resource is a part of the first resource.
  • the second priority information is used to indicate the priority of the data to be sent by the third terminal device.
  • the first terminal device may also notify multiple terminal devices that the first terminal device has the first resource that can be shared. Therefore, if there is a terminal device that needs to share the first resource among the multiple terminal devices, it may request to share the first resource of the first terminal device, so as to improve resource utilization.
  • the method further includes: sending second indication information to the third terminal device, where the third information is also used to indicate whether the third terminal device can use the first resource.
  • the shared time information further includes fourth time information, where the fourth time information is used to indicate the time domain length of the fifth resource, and the fifth resource is a part of the first resource.
  • the offset information further includes a second offset value, and the second offset value and/or the third time information are used to determine the start position of the fifth resource in the time domain.
  • the identification information further includes a second identification, which is used to indicate the third terminal device.
  • the first terminal device also responds to the second request information of the third terminal device, that is, sends the second indication information to the third terminal device, which is used to indicate that the third terminal device is allowed to share the fifth resource of the first resource.
  • the initial time domain position and time domain length so as to avoid resource conflict when the second terminal device and the third terminal device share the first resource.
  • the first terminal device sends the second indication information to the second terminal device, including one or more of the following items, and sends the second indication information to the second terminal device: the second terminal device is waiting for The priority of the data sent is higher than the priority of the data sent by the first terminal device; the priority of the data to be sent by the second terminal device is higher than the first preset priority threshold.
  • the first terminal device may determine whether to share the first resource with the second terminal device, so as to meet the requirements of the second terminal device as much as possible, and at the same time ensure the balance of channel sharing and channel access to a certain extent.
  • the priority of the data to be sent by the second terminal device is higher than the priority of the data sent by the first terminal device, and the first terminal device allows the second terminal device to share the first resource.
  • the delay requirement of the data to be sent by the second terminal device is satisfied, and the reliability of the data to be sent with higher priority is improved.
  • the delay requirement of the second terminal device may be looser than the delay requirement of the data sent by the first terminal device . If the second terminal device shares the first resource of the first terminal device, the remaining resources in the first resource may not be able to meet the delay requirement of the data sent by the first terminal device. Therefore, when the priority of the data to be sent by the second terminal device is higher than the first preset priority threshold, the first resource of the first terminal device is shared to ensure a balance between channel access and channel sharing as much as possible.
  • the time domain resource bearing the first request information is the same as the time domain resource bearing a hybrid automatic repeat request (hybrid automatic repeat request, HARQ).
  • the frequency domain resource bearing the first request information is different from the frequency domain resource bearing HARQ, and/or the code domain resource bearing the first request information is different from the code domain resource bearing HARQ.
  • the second terminal device transmits the HARQ and the first request information in a manner of frequency division multiplexing or code division multiplexing. The times of transceiving and switching of the first terminal device can be reduced, thereby reducing the risk of not being able to access the channel.
  • the difference between the code domain resources bearing the first request information and the code domain resources bearing HARQ includes: using a first cyclic shift (cyclic shift, CS) to send the first request information, and using a second CS to send HARQ.
  • the first CS and the second CS are different.
  • the difference between the code domain resource bearing the first request information and the code domain resource bearing HARQ includes: using the first root sequence to send the first request information, and using the second root sequence to send HARQ.
  • the first root sequence and the second root sequence are different.
  • the difference between the frequency domain resource bearing the first request information and the frequency domain resource bearing HARQ includes: using a first resource block (resource block, RB) to send the first request information, and using a second RB to send HARQ.
  • the first RB and the second RB are different.
  • the time domain resource bearing the second indication information is the same as the time domain resource bearing the HARQ.
  • the frequency domain resources bearing the second indication information are different from the frequency domain resources bearing HARQ, and/or, the code domain resources bearing the second indication information are different from the code domain resources bearing HARQ.
  • the second aspect provides a resource sharing method that can be executed by a second communication device
  • the second communication device may be a communication device, such as a terminal device, or a communication device that can support the communication device to implement the functions required by the method, such as a chip system .
  • the following description will be made by taking the communication device as the second terminal device as an example.
  • the method includes:
  • the second terminal device receives the first indication information from the first terminal device, sends the first request information to the first terminal device, and receives the second indication information from the first terminal device.
  • the first indication information is used to indicate the first resource of the first terminal device.
  • the first request information includes one or more of the following information: first information, first time information, or first priority information.
  • the first information is used to indicate that the second terminal device requests to use the first resource.
  • the first time information is used to indicate the time domain length of the second resource, and the second resource is a part of the first resource.
  • the first priority information is used to indicate the priority of the data to be sent by the second terminal device.
  • the second indication information includes one or more of the following information: third information, sharing time information, offset information, or identification information.
  • the third information is used to indicate whether the second terminal device can use the first resource.
  • the shared time information includes third time information, where the third time information is used to indicate the time domain length of the third resource, and the third resource is a part of the first resource.
  • the offset information includes a first offset value, and the first offset value is used to determine the start position of the third resource in the time domain.
  • the identification information includes a first identification, and the first identification is used to indicate the second terminal device.
  • the third information is further used to indicate whether the third terminal device can use the first resource.
  • the shared time information further includes fourth time information, where the fourth time information is used to indicate the time domain length of the fifth resource, and the fifth resource is a part of the first resource.
  • the offset information further includes a second offset value, and the second offset value and/or the third time information are used to determine the start position of the fifth resource in the time domain.
  • the identification information further includes a second identification, which is used to indicate the third terminal device.
  • the second terminal device sends the first request information to the first terminal device: the second terminal device successfully receives the data from the first terminal device; the second terminal device The priority of the data to be sent by the device is higher than the priority of the data sent by the first terminal device; the priority of the data to be sent by the second terminal device is higher than the first preset priority threshold; the second terminal device listens first The number of times of (listen before talk, LBT) failure is greater than the second preset threshold, and the LBT failure is that the result of the LBT is that the channel is not idle.
  • LBT listen before talk
  • the time domain resource bearing the first request information is the same as the time domain resource bearing the HARQ.
  • the frequency domain resource bearing the first request information is different from the frequency domain resource bearing HARQ, and/or, the code domain resource bearing the first request information is different from the code domain resource bearing HARQ.
  • the time domain resource bearing the second indication information is the same as the time domain resource bearing the HARQ.
  • the frequency domain resources bearing the second indication information are different from the frequency domain resources bearing HARQ, and/or, the code domain resources bearing the second indication information are different from the code domain resources bearing HARQ.
  • a resource sharing method that can be executed by a first communication device
  • the first communication device may be a communication device, such as a terminal device, or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip system .
  • the description below takes the communication device as a first terminal device as an example.
  • the method includes:
  • the first terminal device sends the first instruction information to the second terminal device, and receives the first request information from the second terminal device; the first terminal device receives the first request information, and stops using the remaining resources in the first resource to send data .
  • the first indication information is used to indicate the first resource of the first terminal device, for example, the initial COT of the first terminal device.
  • the first request information may include one or more of the following information: first information, first time information, or first priority information.
  • the first information is used to indicate that the second terminal device requests to use the first resource.
  • the first time information is used to indicate the time domain length of the second resource, and the second resource is a part of the first resource.
  • the first priority information is used to indicate the priority of the data to be sent by the second terminal device.
  • the first terminal device receives the first request information from the second terminal device. If the first request information includes the first information, it can share the remaining resources of the first resource with the second terminal device by default, that is, no longer Data is sent using remaining resources in the first resources.
  • the second terminal device does not need to send the first time information and/or the first priority information, reducing signaling overhead, and the signaling design is simple, the first terminal device does not use the remaining resources of the first resource, and no additional response signal is required To reduce signaling interaction.
  • a resource sharing method that can be executed by a second communication device
  • the second communication device may be a communication device, such as a terminal device, or a communication device that can support the communication device to implement the functions required by the method, such as a chip system .
  • the following description will be made by taking the communication device as the second terminal device as an example.
  • the method includes:
  • the second terminal device receives the first indication information from the first terminal device, and sends the first request information to the first terminal device.
  • the first indication information is used to indicate the first resource of the first terminal device.
  • the first request information may include one or more of the following information: first information, first time information, or first priority information.
  • the first information is used to indicate that the second terminal device requests to use the first resource.
  • the first time information is used to indicate the time domain length of the second resource, and the second resource is a part of the first resource.
  • the first priority information is used to indicate the priority of the data to be sent by the second terminal device. In this solution, when the second terminal device needs to share the first resource, it may request to share the first resource, so as to improve resource utilization.
  • the second terminal device sends the first request information to the first terminal device if one or more of the following conditions are met: the second terminal device successfully receives the data sent by the first terminal device; the second terminal device The priority of the data to be sent by the device is higher than the priority of the data sent by the first terminal device; the priority value of the data to be sent by the second terminal device is higher than the first preset priority threshold; the second terminal device fails to perform LBT The number of times is higher than the second preset threshold, and the result of LBT is that the LBT fails and the channel is not idle.
  • the time domain resource bearing the first request information is the same as the time domain resource bearing HARQ, wherein the frequency domain resource bearing the first request information is different from the frequency domain resource bearing HARQ, and/or , the code domain resource bearing the first request information is different from the code domain resource bearing HARQ.
  • the fifth aspect provides a resource sharing method that can be executed by a first communication device.
  • the first communication device may be a communication device, such as a terminal device, or a communication device that can support the communication device to implement the functions required by the method, such as a chip system .
  • the description below takes the communication device as a first terminal device as an example.
  • the method includes:
  • the first terminal device determines third indication information, and sends the third indication information to the second terminal device.
  • the third indication information includes sharing time information and identification information.
  • the shared time information includes fifth time information, where the fifth time information is used to indicate the time domain length of the sixth resource.
  • the sixth resource is part or all of the first resource of the first terminal device.
  • the sixth resource is used for the second terminal device to send data.
  • the identification information includes a first identification, and the first identification is used to indicate the second terminal device.
  • the first terminal device may share the first resource with the second terminal device, and indicate which resources in the first resource are to be shared with the second terminal device, so as to improve resource utilization.
  • the first terminal device sends third indication information to the second terminal device, including:
  • the first terminal device sends third indication information to multiple terminal devices, where the multiple terminal devices include a second terminal device and a third terminal device.
  • the shared time information further includes sixth time information, where the sixth time information is used to indicate the time domain length of the seventh resource.
  • the seventh resource is part or all of the first resources of the first terminal device, and the seventh resource is used for the third terminal device to send data.
  • the identification information further includes a second identification, which is used to indicate the third terminal device.
  • the third indication information further includes offset information, where the offset information is used to determine a start position of the sixth resource, and the offset information and shared time information are used to determine a time domain start position of the seventh resource.
  • the first terminal device may decide which of the first resources to be shared by multiple terminal devices, thereby avoiding resource conflicts when each terminal device shares the first resource.
  • the method further includes: the first terminal device receives third request information from the second terminal device.
  • the third request information is used to determine third indication information.
  • the third request information includes priority information and/or delay information.
  • the priority information is used to indicate the priority of the data to be sent by the second terminal device.
  • the delay information is used to indicate the delay of the data to be sent by the second terminal device.
  • the third request information may include some reference information, such as priority information, delay information, etc., for the first terminal device to decide which of the first resources to share for the second terminal device. In this way, reasonable resources can be shared by the second terminal device to meet the delay requirement of the second terminal device.
  • the first terminal device sends the third indication information to the second terminal device, including one or more of the following items, and sends the third indication information to the second terminal device: the first terminal device receives Receive fourth indication information from the network device, where the fourth indication information is used to indicate that the second terminal device can share the first resource; the first terminal device does not receive the first HARQ message within the first time period after sending the first data HARQ message Data retransmission: the first terminal device does not receive the HARQ message of the second data within a second time period after sending the second data.
  • the first terminal device may determine a scenario in which the first resource is shared with the second terminal device, so as to ensure as far as possible the fairness of the resources shared by each terminal device.
  • the first terminal device does not receive the retransmission of the first data within the first time period after sending the HARQ message of the first data, that is, the second terminal device has no available resources to send the retransmission data within the first time period, the first The terminal device may share the first resource with the second terminal device.
  • the sixth aspect provides a resource sharing method that can be executed by a second communication device.
  • the second communication device can be a communication device, such as a terminal device, or a communication device that can support the communication device to implement the functions required by the method, such as a chip system .
  • the following description will be made by taking the communication device as the second terminal device as an example.
  • the method includes:
  • the second terminal device receives the third indication information from the first terminal device, and sends data on the sixth resource according to the third indication information.
  • the third indication information includes sharing time information and identification information.
  • the shared time information includes fifth time information, where the fifth time information is used to indicate the time domain length of the sixth resource, where the sixth resource is part or all of the first resource of the first terminal device.
  • the identification information includes a first identification used to indicate the second terminal device.
  • the shared time information further includes sixth time information, where the sixth time information is used to indicate the time domain length of the seventh resource.
  • the seventh resource is part or all of the first resources of the first terminal device, and the seventh resource is used for the third terminal device to send data.
  • the identification information further includes a second identification, which is used to indicate the third terminal device.
  • the third indication information also includes offset information, where the offset information is used to determine the starting position of the sixth resource. The offset information and shared time information are used to determine the start position of the seventh resource in the time domain.
  • the second terminal device sending data on the sixth resource according to the third indication information includes: sending data on the sixth resource because the channel is idle as a result of performing the LBT.
  • the method further includes: the second terminal device sending third request information to the first terminal device.
  • the third request information is used to determine third indication information.
  • the third request information includes priority information and/or delay information.
  • the priority information is used to indicate the priority of the data to be sent by the second terminal device.
  • the delay information is used to indicate the delay of the data to be sent by the second terminal device.
  • the embodiment of the present application provides a communication device, the communication device has the function of implementing the behavior in the method example of the first aspect above, and the beneficial effects can be referred to the description of the first aspect, which will not be repeated here.
  • the communication device may be the first terminal device in the first aspect, or the communication device may be a device capable of supporting the first terminal device in the first aspect to implement the functions required by the method provided in the first aspect, such as a chip or system on a chip.
  • the communication device includes corresponding means or modules for performing the method of the first aspect.
  • the communication device includes a processing unit (sometimes also called a processing module or a processor) and/or a transceiver unit (sometimes also called a transceiver module or a transceiver).
  • a processing unit sometimes also called a processing module or a processor
  • a transceiver unit sometimes also called a transceiver module or a transceiver.
  • the communication device has the function of realizing the behavior in the method example of the third aspect above, and the beneficial effect can refer to the description of the third aspect and will not be repeated here.
  • the communication device may be the first terminal device in the third aspect, or the communication device may be a device capable of supporting the first terminal device in the third aspect to implement the functions required by the method provided in the third aspect, such as a chip or system on a chip.
  • the communication device includes corresponding means or modules for performing the method of the third aspect.
  • the communication device includes a processing unit (sometimes also called a processing module or a processor) and/or a transceiver unit (sometimes also called a transceiver module or a transceiver).
  • a processing unit sometimes also called a processing module or a processor
  • a transceiver unit sometimes also called a transceiver module or a transceiver.
  • the communication device has the function of implementing the behavior in the method example of the fifth aspect above, and the beneficial effect can refer to the description of the fifth aspect and will not be repeated here.
  • the communication device may be the first terminal device in the fifth aspect, or the communication device may be a device capable of supporting the first terminal device in the fifth aspect to implement the functions required by the method provided in the fifth aspect, such as a chip or system on a chip.
  • the communication device includes corresponding means or modules for performing the method of the fifth aspect.
  • the communication device includes a processing unit (sometimes also called a processing module or a processor) and/or a transceiver unit (sometimes also called a transceiver module or a transceiver).
  • a processing unit sometimes also called a processing module or a processor
  • a transceiver unit sometimes also called a transceiver module or a transceiver.
  • the embodiment of the present application provides a communication device, the communication device has the function of implementing the behavior in the method example of the second aspect above, and the beneficial effects can be referred to the description of the second aspect, which will not be repeated here.
  • the communication device may be the second terminal device in the second aspect, or the communication device may be a device capable of supporting the second terminal device in the second aspect to implement the functions required by the method provided in the second aspect, such as a chip or system on a chip.
  • the communication device includes corresponding means or modules for performing the method of the second aspect.
  • the communication device includes a processing unit (sometimes also called a processing module or a processor) and/or a transceiver unit (sometimes also called a transceiver module or a transceiver).
  • a processing unit sometimes also called a processing module or a processor
  • a transceiver unit sometimes also called a transceiver module or a transceiver.
  • the communication device has the function of implementing the behavior in the method example of the fourth aspect above, and the beneficial effects can be referred to the description of the third aspect, which will not be repeated here.
  • the communication device may be the second terminal device in the fourth aspect, or the communication device may be a device capable of supporting the second terminal device in the fourth aspect to implement the functions required by the method provided in the fourth aspect, such as a chip or system on a chip.
  • the communication device includes corresponding means or modules for performing the method of the fourth aspect.
  • the communication device includes a processing unit (sometimes also called a processing module or a processor) and/or a transceiver unit (sometimes also called a transceiver module or a transceiver).
  • a processing unit sometimes also called a processing module or a processor
  • a transceiver unit sometimes also called a transceiver module or a transceiver.
  • the communication device has the function of realizing the behavior in the method example of the sixth aspect above, and the beneficial effect can refer to the description of the fifth aspect and will not be repeated here.
  • the communication device may be the second terminal device in the sixth aspect, or the communication device may be a device capable of supporting the second terminal device in the sixth aspect to implement the functions required by the method provided in the sixth aspect, such as a chip or system on a chip.
  • the communication device includes corresponding means or modules for performing the method of the sixth aspect.
  • the communication device includes a processing unit (sometimes also called a processing module or a processor) and/or a transceiver unit (sometimes also called a transceiver module or a transceiver).
  • a processing unit sometimes also called a processing module or a processor
  • a transceiver unit sometimes also called a transceiver module or a transceiver.
  • the embodiment of the present application provides a communication device, which may be the communication device in the seventh aspect or the eighth aspect in the above embodiments, or the communication device set in the seventh aspect or the eighth aspect chip or system-on-a-chip.
  • the communication device includes a communication interface, a processor, and optionally, a memory.
  • the memory is used to store computer programs or instructions or data
  • the processor is coupled with the memory and the communication interface.
  • the communication device is made to execute the first method in the above method embodiment. The method performed by the terminal device, or the method performed by the second terminal device in the above method embodiments.
  • the embodiment of the present application provides a communication device, where the communication device includes an input and output interface and a logic circuit.
  • the input and output interfaces are used to input and/or output information.
  • the logic circuit is used to execute the method described in any one of the first aspect to the sixth aspect.
  • the embodiment of the present application provides a chip system
  • the chip system includes a processor, and may also include a memory and/or a communication interface, for implementing the first aspect or the third aspect or the fifth aspect.
  • the chip system further includes a memory, configured to store computer programs.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • an embodiment of the present application provides a chip system
  • the chip system includes a processor, and may also include a memory and/or a communication interface, for implementing the second aspect or the fourth aspect or the sixth aspect.
  • Methods for implementing the second aspect or the fourth aspect or the sixth aspect.
  • the chip system further includes a memory, configured to store computer programs.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the embodiment of the present application provides a communication system
  • the communication system includes the communication device in the seventh aspect for implementing the method in the first aspect and the communication device in the eighth aspect for implementing the method in the second aspect communication device.
  • the communication system includes the communication device in the seventh aspect for implementing the method in the third aspect and the communication device in the eighth aspect for implementing the method in the fourth aspect.
  • the communication system includes the communication device in the seventh aspect for implementing the method in the fifth aspect and the communication device in the eighth aspect for implementing the method in the sixth aspect.
  • the present application provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed, any one of the above-mentioned first to sixth aspects can be realized Methods.
  • a computer program product comprising: computer program code, when the computer program code is executed, the method in any one of the above first to sixth aspects be executed.
  • beneficial effects of the above-mentioned seventh to fifteenth aspects and their implementations can refer to the beneficial effects of the first aspect or the third aspect or the fifth aspect, or the first aspect or the third aspect or the fifth aspect and their implementations description of.
  • FIG. 1 is an exemplary architecture diagram of a communication system applicable to an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a first resource sharing method provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of state switching between sending data and receiving data of the first terminal device provided by the embodiment of the present application;
  • FIG. 4 is a schematic configuration diagram of resources used to transmit HARQ provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of determining a candidate resource for sending HARQ from a set of candidate resources for sending HARQ provided by an embodiment of the present application
  • FIG. 6A is a schematic diagram of sharing a first resource between a first terminal device and a second terminal device in an embodiment of the present application
  • FIG. 6B is another schematic diagram of sharing a first resource between a first terminal device and a second terminal device in the embodiment of the present application;
  • FIG. 7 is a schematic flowchart of a second resource sharing method provided by the embodiment of the present application.
  • FIG. 8A is a schematic diagram of sharing a first resource between a first terminal device and a second terminal device in an embodiment of the present application
  • FIG. 8B is a schematic diagram of a first terminal device sharing a first resource with a second terminal device and a third terminal device in an embodiment of the present application;
  • FIG. 9A is a schematic diagram of the first structure of the second indication information provided by the embodiment of the present application.
  • FIG. 9B is a schematic diagram of a second structure of the second indication information provided by the embodiment of the present application.
  • FIG. 9C is a schematic diagram of a third structure of the second indication information provided by the embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of the second indication information provided by the embodiment of the present application.
  • FIG. 11 is a schematic flowchart of a third resource sharing method provided by the embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 13 is another schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 14 is another schematic structural diagram of a communication device provided by an embodiment of the present application.
  • a network device is an access device for a terminal device to wirelessly access the mobile communication system, including a radio access network (radio access network, RAN) device, such as a base station.
  • RAN radio access network
  • a network device may also refer to a device that communicates with a terminal device over an air interface.
  • the network equipment may include an evolved base station (evolved Node B) in a long term evolution (long term evolution, LTE) system or an advanced long term evolution (long term evolution-advanced, LTE-A), which may be referred to as eNB or e-NodeB).
  • An eNB is a device deployed in a radio access network that meets the standards of the fourth generation mobile communication technology (the fourth generation, 4G) and provides wireless communication functions for terminal equipment.
  • the network device can also be a new wireless controller (new radio controller, NR controller), it can be a (gNode B, gNB) in the 5G system, it can be a centralized network element (centralized unit), it can be a new wireless base station, it can be a
  • the radio remote module can be a micro base station (also called a small station), a relay, a distributed unit, various forms of macro base stations, or a transmission and receiving point (transmission reception point, TRP), transmission measurement function (transmission measurement function, TMF) or transmission point (transmission point, TP) or any other wireless access device, the embodiment of the present application is not limited thereto.
  • the network equipment may also include a radio network controller (radio network controller, RNC), a node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (for example, home evolved NodeB, or home Node B, HNB), base band unit (base band unit, BBU), or wireless fidelity (wireless fidelity, Wifi) access point (access point, AP), etc.
  • RNC radio network controller
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • base transceiver station base transceiver station
  • BTS home base station
  • base station for example, home evolved NodeB, or home Node B, HNB
  • base band unit base band unit
  • BBU wireless fidelity (wireless fidelity, Wifi) access point (access point, AP), etc.
  • the embodiment of the present application does not limit the specific technology and specific device form used by the network
  • the base station in this embodiment of the present application may include a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU), and multiple DUs may be centrally controlled by one CU.
  • CU and DU can be divided according to the protocol layer functions of the wireless network they have. For example, the functions of the packet data convergence protocol (packet data convergence protocol, PDCP) layer and the protocol layer above are set in the protocol layer below the CU and PDCP, such as the wireless link Functions such as the radio link control (radio link control, RLC) layer and the medium access control (medium access control, MAC) layer are set in the DU.
  • packet data convergence protocol packet data convergence protocol
  • RLC radio link control
  • MAC medium access control
  • the radio frequency device can be remote, not placed in the DU, or integrated in the DU, or partially remote and partially integrated in the DU, which is not limited in this embodiment of the present application.
  • the control plane (control plan, CP) and the user plane (user plan, UP) of the CU can also be separated and divided into different entities for implementation, respectively being the control plane CU entity (CU-CP entity) And user plane CU entity (CU-UP entity).
  • the signaling generated by the CU can be sent to the terminal device through the DU, or the signaling generated by the UE can be sent to the CU through the DU.
  • the DU can directly transmit the signaling to the terminal device or CU through protocol layer encapsulation without analyzing the signaling.
  • the CU is classified as a network device on the RAN side.
  • the CU may also be classified as a network device on the core network (core network, CN) side, which is not limited in this application.
  • the terminal device has a wireless transceiver function, and can send signals to network equipment or receive signals from network equipment.
  • a terminal device may include user equipment (user equipment, UE), sometimes also referred to as terminal equipment, a terminal, an access station, a UE station, a remote station, a wireless communication device, or a user device, and so on.
  • UE user equipment
  • the terminal device and the terminal device have the same meaning hereinafter.
  • the terminal device is used to connect people, objects, machines, etc., and can be widely used in various scenarios, including but not limited to the following scenarios: cellular communication, D2D, V2X, machine-to-machine/machine-type communication (machine-to-machine /machine-type communications, M2M/MTC), Internet of things (Internet of things, IoT), virtual reality (virtual reality, VR), augmented reality (augmented reality, AR), industrial control (industrial control), unmanned driving ( Self driving), remote medical, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, drones, robots and other scenarios of terminal equipment.
  • cellular communication D2D, V2X
  • machine-to-machine/machine-type communication machine-to-machine /machine-type communications
  • M2M/MTC machine-to-machine/machine-type communications
  • Internet of things Internet of things, IoT
  • virtual reality virtual reality
  • AR augmented reality
  • industrial control industrial control
  • Self driving Self driving
  • the terminal device in the embodiment of the present application may be a mobile phone, a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal, an augmented reality (augmented reality, AR) ) terminals, wireless terminals in industrial control, wireless terminals in self driving, smart speakers in IoT networks, wireless terminal devices in telemedicine, wireless terminal devices in smart grids, transportation safety Wireless terminal devices in smart cities, wireless terminal devices in smart cities, or wireless terminal devices in smart homes, etc.
  • the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices or smart wearable devices, etc., which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes wait.
  • Terminal devices may also include relays. Or it can be understood that all devices capable of performing data communication with the base station can be regarded as terminal devices.
  • Vehicle-mounted terminal devices are also called on-board units (OBU), for example.
  • OBU on-board units
  • the terminal device of the present application can also be a vehicle-mounted module, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit built into the vehicle as one or more components or units.
  • the on-board components, on-board chips, or on-board units can implement the method of the present application.
  • Direct communication (PC5) interface communication is supported between terminal devices, that is, transmission through sidelinks is supported.
  • a terminal device may refer to a device for implementing a terminal function, or may be a device capable of supporting a terminal device to implement the function, such as a chip system, and the device may be installed in the terminal device.
  • an end device can also be a vehicle detector.
  • the system-on-a-chip may be composed of chips, or may include chips and other discrete devices.
  • a side link refers to a link established between devices of the same type, and may also be called a side link or a secondary link. It is referred to herein as a sidelink.
  • the so-called devices of the same type may be links between terminal devices, or links between network devices, or links between relay nodes, etc. This embodiment of the present application does not limit it.
  • V2X includes vehicle-to-vehicle (V2V), vehicle-to-roadside infrastructure (vehicle-to-infrastructure, V2I), vehicle-to-pedestrian (V2P) direct communication, and vehicle-to-vehicle Network (vehicle-to-network, V2N) or vehicle-to-any entity V2X link, including Rel-14/15.
  • V2X also includes Rel-16 and subsequent versions of V2X links based on NR systems currently being studied by 3GPP.
  • V2V refers to the communication between vehicles
  • V2P refers to the communication between vehicles and people (including pedestrians, cyclists, drivers, or passengers)
  • V2I refers to the communication between vehicles and roadside infrastructure, such as vehicles and roads.
  • Side unit or roadside unit (road side unit, RSU) communication there is another kind of V2N that can be included in V2I
  • V2N refers to the communication between the vehicle and the base station/network.
  • RSU includes two types: terminal type RSU, because it is deployed on the roadside, the terminal type RSU is in a non-mobile state, and there is no need to consider mobility; base station type RSU can provide timing synchronization for vehicles communicating with it and resource scheduling.
  • LBT Listen before talk
  • Backoff-based LBT can be considered as non-fixed duration-based LBT. That is, the device randomly selects a value A in a contention window. After detecting at least A idle time slots, it can determine that the channel is in an idle state, so that the channel can be occupied; otherwise, it needs to re-compete for the channel.
  • an idle time slot means that within a time slot, the energy of a signal detected in a channel is lower than a preset threshold.
  • Fallback-based LBT is also known as Type1LBT.
  • LBT based on a fixed duration that is, the device detects a fixed duration. Within the fixed duration, if the energy of the signal detected in the channel is lower than the preset threshold, the channel is considered to be in an idle state, so that the channel can be occupied, otherwise it needs to re-compete channel.
  • LBT based on fixed duration is divided into three types of LBT, which are Type2A LBT, Type2B LBT and Type2C LBT.
  • Type2A LBT, Type2B LBT and Type2C LBT lies in the fixed duration of detection (referred to as the fixed duration of detection for short).
  • Type2A LBT has a fixed detection time of 9us within the interval (gap) of 25us.
  • Type2B LBT is within the gap of 16us, and the fixed detection time is at least 5us.
  • Type2C LBT does not need to directly access the channel with LBT when the gap is less than 16us. At this time, the device can only use 584us for transmission.
  • HARQ transmission is a common way to improve transmission reliability.
  • HARQ transmission that is, after the sending end transmits information to the receiving end for the first time, the receiving end may send HARQ feedback information to the sending end.
  • the sending end determines whether to retransmit the information to the receiving end according to the received HARQ feedback information, and improves the transmission reliability of the information based on the forward error correction (forward error correction, FEC) code.
  • the HARQ feedback information includes an acknowledgment (acknowledgment, ACK) message or a negative acknowledgment (negative acknowledgment, NACK) message. After the sending end receives the NACK message from the receiving end, the sending end retransmits the information to the receiving end.
  • the receiving end receives information from the sending end, and when the receiving end fails to decode the information, that is, fails to receive the information, the receiving end sends a NACK message to the sending end.
  • the sending end confirms the NACK message from the receiving end, and sends the information to the receiving end again.
  • the receiving end combines the information that was not successfully received in the initial transmission with the information that was received again in the retransmission, and decodes it together. Compared with only using the information received again in the retransmission for decoding, it can improve The probability of successfully receiving the message.
  • the HARQ is borne on the PSFCH, and herein, unless otherwise specified, the resources used to send the PSFCH and the resources used to send the HARQ can be replaced.
  • Uu air interface the Uu air interface may be referred to as Uu for short, and the Uu air interface is used for communication between the terminal equipment and the access network equipment.
  • the Uu air interface can be understood as a universal UE to network interface (universal UE to network interface).
  • the transmission of the Uu air interface includes uplink transmission and downlink transmission.
  • Uplink transmission means that a terminal device sends information to a network device.
  • the information for uplink transmission may include a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and the like.
  • the PUSCH is used to carry uplink data, and the uplink data may also be referred to as uplink data information.
  • the PUCCH is used to carry the UCI fed back by the terminal equipment.
  • Downlink transmission means that network equipment sends information to terminal equipment.
  • the information for downlink transmission may be downlink information or downlink signals.
  • the downlink information or downlink signal may include a physical downlink shared channel (physical downlink shared channel, PDSCH), PDCCH, and the like.
  • the PDSCH is used to bear downlink data (data), and the downlink data may also be referred to as downlink data information.
  • the PDCCH is used to bear downlink control information (DCI).
  • At least one means one or more, and “multiple” means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that 44.
  • the associated objects before and after are a kind of "or” relationship.
  • At least one of the following” or similar expressions refer to any combination of these more than ten items, including any combination of single or plural items.
  • At least one item (piece) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple .
  • the ordinal numerals such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or priority of multiple objects. Importance.
  • the first terminal device and the second terminal device are only used to distinguish different terminal devices, and do not represent differences in priority or importance of the two terminal devices.
  • "when" and "in the situation of" can be replaced.
  • the terminal device will perform LBT. After the LBT is successful, it will access the channel and occupy it for a period of time. This period of time can be called a COT.
  • the COT can be regarded as the initial COT of the terminal device.
  • network devices and terminal devices can share the COT.
  • the terminal device may send uplink control information (uplink control information, UCI) to the network device, where the UCI includes COT sharing information.
  • UCI uplink control information
  • the COT sharing information may include information indicating whether to allow sharing of the COT, and may also include a duration of sharing the COT.
  • the network device determines that the COT can be used according to the COT sharing information, and then sends or receives data within the COT according to the duration of the shared COT. Communication between the network device and the terminal device, the terminal device sends information to the network device or receives information from the network device after receiving the PDCCH from the network device. That is, the network device, as the controller, can clearly share the starting position of the COT. For example, after the starting position of the shared COT is that the terminal device sends a configured grant (CG) PUSCH, it can also automatically send the PUSCH for the terminal device, or it can be dynamically scheduled PUSCH transmission or PUSCH transmission on configured resources for the terminal device After a gap, wait.
  • CG configured grant
  • the embodiment of the present application provides a resource sharing method.
  • a certain terminal device can actively inform other terminal devices that it is allowed to share the resources of the terminal device, such as COT, and indicate that each terminal device is allowed to share the COT. Start location and duration, so as to avoid resource conflicts when other terminal devices share the COT.
  • other terminal devices can actively request to share the COT of a certain terminal device, and the terminal device responds to the request of other terminal devices by notifying other terminal devices of the start location and duration of allowing sharing of the COT, which can also prevent other terminal devices from sharing the COT cause resource conflicts.
  • a COT is shared by multiple terminal devices as an example, and there is no limitation on frequency domain resources corresponding to the COT.
  • the resource sharing method provided by the embodiment of the present application can be applied to various communication systems, for example, an LTE system, a 5G system, or a next-generation communication system, such as a 6G system.
  • the technical solutions of the embodiments of the present application can also be applied to other communication systems, as long as there is a sidelink in the communication system.
  • the communication system can also be applied to future-oriented communication technologies.
  • the system described in the embodiment of this application is to illustrate the technical solution of the embodiment of the application more clearly, and does not constitute a reference to the technical solution provided in the embodiment of the application.
  • those of ordinary skill in the art know that, with the evolution of the network architecture, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • FIG. 1 is a network architecture applied in the embodiment of this application.
  • Figure 1 takes two terminal devices and one network device as an example.
  • the terminal devices in Figure 1 can communicate with or without a network infrastructure.
  • this article takes the terminal device in FIG. 1 as an example of a vehicle-mounted terminal device, that is, takes the embodiment of the present application applied to a V2X scenario as an example.
  • the embodiment of the present application does not limit the specific form of the terminal device, for example, the terminal device may also be a mobile phone or the like.
  • the resource sharing method provided by the embodiment of the present application is applied to the network architecture shown in FIG. 1 and is applicable to a sidelink transmission scenario.
  • the method may be performed by two communication devices, such as a first communication device and a second communication device.
  • the first communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, and of course may also be other communication devices, such as a chip system.
  • the second communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, and of course it may also be other communication devices, such as a chip system.
  • the first communication device may be a certain terminal device, and the second communication device may be another terminal device; or the first communication device may be a certain terminal device, and the second communication device may support another terminal device to implement the method.
  • both the first terminal device and the second terminal device described below may be terminal devices in the network architecture shown in FIG. 1 .
  • the embodiment of the present application is only performed by the first terminal device and the second terminal device as an example, and is not limited to these two terminal devices.
  • the embodiments of the present application may also be executed by more terminal devices. It should be understood that when more terminal devices are involved, each terminal device in the more terminal devices performs the same process.
  • the following uses an example in which at least one terminal device shares the COT of the first terminal device.
  • the first terminal device may actively share the initial COT with one or more terminal devices.
  • One or more terminal devices may also actively request to share the COT of the first terminal device.
  • the number of terminal devices actively sharing the COT of the first terminal device is different, and the behavior of the first terminal device is also different.
  • the method in which a terminal device requests to share the COT of the first terminal device is referred to as the first resource sharing method.
  • the method in which at least one terminal device requests to share the COT of the first terminal device is called the second resource sharing method.
  • the method in which the first terminal device actively shares the COT with at least one terminal device is called the third resource sharing method.
  • the priority of data is represented by a priority value.
  • the priority value of the data may include ⁇ 0, 1, 2, 3, 4, 5, 6, 7 ⁇ , and the priority value of the data is 0, which means the data has the highest priority.
  • the priority of the data to be sent by the second terminal device is higher than the priority of the data sent by the first terminal device, that is, the priority value of the data to be sent by the second terminal device is lower than the priority value of the data sent by the first terminal device (The two can be replaced unless otherwise specified).
  • the priority of the data to be sent by the second terminal device is higher than a certain priority threshold, that is, the priority value of the data to be sent by the second terminal device is smaller than a certain threshold.
  • the initial COT determined by the first terminal device is referred to as the first resource.
  • the first resource is a time-domain resource corresponding to the COT, or the first resource is a frequency-domain resource corresponding to the COT, or the first resource is a time-frequency resource corresponding to the COT.
  • the frequency domain resource of the first resource may be based on a PRB as a granularity and a subchannel as a granularity, which is not limited in the present invention, nor is there any limitation on the frequency domain resource of the first resource.
  • the time domain unit of the COT may be a time slot, a symbol, or a subframe, and the absolute time (such as milliseconds ms) is not limited in the present invention.
  • the first terminal device may send data to other terminal devices on the first resource, and after the first terminal device sends data to other terminal devices, the first resource still has some available resources.
  • Other terminal devices may request to use the first resource, that is, request to use the part of the first resource.
  • other terminal devices requesting to share part of the first resources are referred to as other terminal devices requesting to share the first resources. That is, unless otherwise specified, hereinafter, requesting to share the first resource and sharing some resources in the first resource can be replaced.
  • the time domain length of the resource shared by other terminal devices may be smaller than the time domain length of the part of the first resources.
  • the first resource has remaining resources besides the resources shared by other terminal devices. That is, the remaining resources in the first resources may be considered as resources in the first resources except the resources already used by the first terminal device and some resources shared by other terminal devices.
  • FIG. 2 is a schematic flowchart of the first resource sharing method provided by the embodiment of the present application.
  • the process shown in FIG. 2 takes the second terminal device actively requesting to share the COT of the first terminal device as an example.
  • the first terminal device sends first indication information to the second terminal device, and correspondingly, the second terminal device receives the first indication information.
  • the first indication information may indicate the first resource of the first terminal device, for example, the initial COT determined by the LBT during the channel access process of the first terminal device.
  • the first terminal device may send data or receive data on resources corresponding to the initial COT.
  • the first terminal device can share the first resource with other terminal devices, thereby increasing the high priority and quality of service requirements for sidelink data transmission of other terminal devices.
  • the first terminal device may share the first resource with the second terminal device.
  • the second terminal is not aware of the first resource of the first terminal.
  • the first terminal device may notify the second terminal device of the first resource of the first terminal device through the first indication information. In this way, when the second terminal device needs to share the first resource, it may request the first terminal device to share the first resource of the first terminal device.
  • the sending manners of the first indication information include the following types, and the embodiment of the present application does not limit the manner of sending the first indication information.
  • the first indication information may be carried in sidelink control information (sidelink control information, SCI).
  • Sending the first indication information to the second terminal device by the first terminal device may also be regarded as sending an SCI to the second terminal device by the first terminal device, where the SCI includes the first indication information.
  • a field in the SCI may be used to indicate the first indication information.
  • the SCI may be a first-level SCI or a second-level SCI.
  • the first indication information may be carried in a media access control (media access control, MAC) control element (control element, CE) or a PC5 radio resource control (radio resource control, RRC) message.
  • media access control media access control
  • CE control element
  • RRC radio resource control
  • the first indication information may be carried on a physical sidelink feedback channel (physical sidelink feedback channel, PSFCH).
  • PSFCH physical sidelink feedback channel
  • Sending the first indication information to the second terminal device by the first terminal device may also be regarded as sending a PSFCH to the second terminal device by the first terminal device, where the PSFCH includes the first indication information.
  • the second terminal device sends the first request message to the first terminal device, and correspondingly, the first terminal device receives the first request message.
  • the first request message may be used to request to share the first resource of the first terminal device.
  • the second terminal device may send a first request message to the first terminal device.
  • the second terminal device has data to send, and the available resources have not been detected through LBT.
  • the second terminal device performs sensing in the sidelink resource pool, and the sensing result within a certain period of time is that the channel is not idle. That is, the degree of interference perceived by the channel is higher than a certain threshold.
  • the second terminal device performs LBT on the unlicensed frequency spectrum.
  • the detection result is that the channel is not idle, that is, the channel interference degree is higher than a certain threshold. It should be understood that when the second terminal device does not need to share the first resource of the first terminal device, it does not need to send the first request information to the first terminal device, so as to reduce unnecessary signaling interaction and waste of resources. When one or more of the following conditions are met, the second terminal device may share the first resource of the first terminal device. In other words, when the second terminal device meets one or more of the following conditions, the second terminal device may send the first request information to the first terminal device.
  • the priority of the data to be sent by the second terminal device is higher than the priority of the data sent by the first terminal device. That is, the priority of the data to be sent by the second terminal device is higher than that of the data sent by the first terminal device, and the second terminal device can send the first request information to the first terminal device, so as to meet the requirements of the data to be sent by the second terminal device.
  • the delay requirement of the data improves the reliability of the data to be sent with higher priority.
  • the priority of the data sent by the first terminal device is indicated by the SCI sent by the first terminal device
  • the priority value indicated in the SCI is a priority value corresponding to the data sent by the first terminal device.
  • the second terminal device may determine the priority of the data sent by the first terminal device according to the priority value indicated by the SCI.
  • the second condition is that the second terminal device is a peer device of the first terminal device, that is, the first terminal device serves as the sending end, and the second terminal device serves as the receiving end of the first terminal device. It can be understood that the second terminal device successfully receives the data sent by the first terminal device, that is, the second terminal device can successfully decode the data packet from the first terminal device. Since the transmission of the first terminal device is completed, there is a high probability that the remaining resources in the first resources will not be used continuously. Therefore, in this case, the second terminal device may request to use the remaining resources of the first resource to improve the success rate of channel access.
  • the first preset priority threshold may be a configured or preconfigured priority of the network device, or may be a predefined priority.
  • the first preset priority threshold may be the first priority.
  • the priority of the data to be sent by the second terminal device is higher than the first preset priority threshold, that is, the priority value of the data to be sent by the second terminal device is smaller than the first preset threshold.
  • the first preset threshold may be a priority value configured or preconfigured by the network device, or may be a predefined priority value.
  • the first preset priority threshold may be a first priority value. Exemplarily, the first priority value is "2".
  • the priority value of the data to be sent by the second terminal device is less than 2, it means that the priority is higher, and it may request to share the first resource of the first terminal device.
  • the priority of the data to be sent by the second terminal device is higher than that of the data of the first terminal device, if the data sent by the first terminal device is a service with a tight delay, the first terminal device will After the first resource is shared with the second terminal device, the remaining resources in the first resource may not be able to meet the delay requirement of the data sent by the first terminal device. For this reason, by setting the first preset priority threshold, the threshold for sharing the first resource is increased to ensure the fairness of channel access and channel sharing to a certain extent.
  • the second terminal device can share the first The first resource of the terminal device.
  • LBT failure means that the result of LBT is that the channel is not idle.
  • the second terminal device Before the second terminal device sends data, it will determine available resources through LBT. If the second terminal device performs LBT multiple times, the result of the multiple LBTs is that the channel is not idle, that is, no idle resources are available, so that the delay requirement and QoS of the data to be sent by the second terminal device cannot be met. In this case, the second terminal device may request to share the first resource of the first terminal device, so as to meet the delay requirement and QoS requirement of the data to be sent by the second terminal device. It can be understood that the LBT performed by the second terminal device is Type1 LBT.
  • the second terminal device satisfies any one of the above conditions 1 to 4, and may send the first request information to the first terminal device.
  • the second terminal device may send the first request information to the first terminal device if it satisfies condition one, condition two, condition three or condition four.
  • the second terminal device satisfies multiple conditions in the foregoing condition 1 to condition 4, and may send the first request information to the first terminal device.
  • the second terminal device satisfies condition one and condition three, and may send the first request information to the first terminal device.
  • the second terminal device may send the first request information to the first terminal device if it satisfies condition one, condition three and condition four.
  • the second terminal device may perform type2A, type2B or type2C LBT.
  • the second terminal device sends the first request information. If the result of LBT is that the channel is not idle, then the second terminal device does not send the first request information.
  • the first request information may directly or indirectly indicate that the second terminal device requests to share the first resource of the first terminal device.
  • the first request information may include first information, the first information occupies 1 bit, and is used to indicate that the second terminal device requests to share the first resource of the first terminal device, or is used to indicate whether the second terminal device A request is made to share the first resource of the first terminal device.
  • the first request information may be carried in the SCI.
  • the value of this 1 bit is "0", which is used to indicate that the second terminal device requests to share the first resource of the first terminal device; on the contrary, the value of this 1 bit is "1", which is used to indicate that the second terminal device does not A request is made to share the first resource of the first terminal device.
  • this 1 bit is "1", which is used to indicate that the second terminal device requests to share the first resource of the first terminal device; on the contrary, the value of this 1 bit is "0", which is used to indicate that the second terminal device The device does not request to share the first resource of the first terminal device.
  • the first request message may include first time information, and the first time information may be used to indicate the length of time domain for requesting to share part of the first resource (for example, called the second resource).
  • the time domain length indicated by the first time information may be regarded as the time domain length that the second terminal device expects to share.
  • the first time information may indirectly indicate that the second terminal device requests to share the first resource of the first terminal device. For example, if the length of the time domain indicated by the first time information is not 0, it indicates that the second terminal device requests to share part of the first resource of the first terminal device, such as the second resource. It can be understood that if the length of the time field indicated by the first time information is not 0, the first terminal device may subsequently send data on the remaining resources in the first resource except the resources shared by the second terminal device, so as to maximize the resources. utilization rate.
  • the first time information may occupy N bits, where N is a positive integer. It can be understood that N bits correspond to 2 N states. One of the 2 N states is used to indicate that the second terminal device requests to share the first resource of the first terminal device, and the remaining 2 N ⁇ 1 states are used to indicate the time domain length of the second resource. Optionally, N bits correspond to 2 N states. One of the 2 N states is used to indicate that the second terminal device requests to share the first resource of the first terminal device, and the other state among the 2 N states is used to indicate that the second terminal device does not request to share the first terminal device the first resource, and the remaining 2 N -2 states are used to indicate the time domain length of the second resource.
  • the first request information may include first information and first time information, the first information may be used to indicate the request to share the first resource of the first terminal device, and the first time information may be used to indicate the time domain length of the second resource .
  • the first request information may further include identification information, the identification information corresponds to the second terminal device, and the identification information is used for the first terminal device to determine that the second terminal device requests it to share the first resource. Through the identification information, the first terminal device can determine which terminal devices have needs and requests for sharing the COT.
  • the embodiment of the present application does not limit the manner in which the first request information is sent to the first terminal device.
  • the first request information may be carried on PSFCH or SCI.
  • the first request information may be carried in the MAC CE, and sent to the first terminal device together with the data sent by the second terminal device to the first terminal device.
  • the first request information is sent to the first terminal device together with the HARQ sent by the second terminal device to the first terminal device.
  • the first request information is carried in the PC5RRC message.
  • the first terminal device may dynamically schedule time-frequency resources used by the second terminal device to send the first request information.
  • the second terminal device sends the first request information on the time-frequency resource indicated by the first terminal device.
  • the first indication information may also be used to indicate the time-frequency resources (time domain resources and frequency domain resources) used by the second terminal device to send the first request information.
  • a candidate resource set for the second terminal device to send the first request information may be pre-configured or the network device configures or pre-defines.
  • the first indication information may be used to indicate a candidate resource in the candidate resource set. It should be understood that the candidate resource is a time-frequency resource for the second terminal device to send the first request information.
  • FIG. 3 is a schematic diagram of state switching between sending data and receiving data by the first terminal device.
  • the switching time may include a switching time from sending to receiving, and a switching time from receiving to sending. If the switching time is long, other terminal devices may determine that the switching time is an idle resource after performing LBT. After the LBT is successful, other terminal devices may consider the channel to be idle and cause the first resource to be occupied by other terminal devices. In order to reduce the probability that the switching time is preempted by other terminal devices, the duration of the switching time may be shortened.
  • the time-domain resource for the second terminal device to send the first request information is the same as the time-domain resource for sending HARQ, which can reduce the number of times the first terminal device transmits and receives transitions, thereby reducing the number of channels that cannot be accessed. risks of.
  • the second terminal device may use frequency division multiplexing or code division multiplexing to transmit HARQ and the first request information.
  • the time domain resource for sending the first request information is the same as the time domain resource for sending the HARQ, but the code domain resource for sending the first request information is different from the code domain resource for sending the HARQ.
  • the time domain resource for sending the first request information is the same as the time domain resource for sending the HARQ, but the frequency domain resource for sending the first request information is different from the frequency domain resource for sending the HARQ.
  • the code domain resource for sending the first request information is different from the code domain resource for sending the HARQ.
  • the cyclic shift (cyclic shift, CS) used in sending the first request information is different, or the root sequence used in sending the first request information and HARQ is different, or, the orthogonal cover code used in sending the first request information and HARQ ( Orthogonal cover code, OCC) is different.
  • the first request information occupies 1 bit. Assuming that the value of the 1 bit is "0", it means that the first resource is not requested to be shared; on the contrary, the value of the 1 bit is "1", which means that the first resource is requested to be shared (Table 1-1 takes this as an example). Please refer to Table 1-1, which is a correspondence table between bit meanings of the first request information and cyclic shifts of used sequences.
  • Table 1-1 uses the first request information to indicate that the first resource is requested to be shared, the cyclic displacement m cs of the sequence used by the second terminal device to send the first request information is 6, the first request information indicates that the first resource is not requested to be shared, and the second The cyclic shift m cs of the sequence used by the terminal device to send the first request information is 0 as an example.
  • Table 1 is only an example, and this embodiment of the present application does not limit the first request information, the cyclic shift of the sequence used by HARQ, and the specific meaning of 1 bit in Table 1.
  • a value of 1 bit is "0", which may indicate that the first resource is requested to be shared; on the contrary, a value of the 1 bit is "0", which indicates that the first resource is requested to be shared.
  • the cyclic displacement m cs of the sequence used by the second terminal device to send the first request information may be 0, the first request information indicates that the first resource is not requested to be shared, and the cyclic displacement m cs of the sequence used by the second terminal device to send the first request information Can be 0. That is, Table 1-1 can also be Table 1-2, Table 1-3 or Table 1-4.
  • HARQ may also occupy 1 bit, assuming that the value of this 1 bit is "0", indicating that HARQ includes NACK; on the contrary, the value of this 1 bit is "1", indicating that HARQ includes ACK.
  • Table 2 is a correspondence table between the first request information and the HARQ bit meaning and the cyclic shift of the used sequence.
  • Table 2 is only an example, and this embodiment of the present application does not limit the first request information and the cyclic shift of the sequence used by the HARQ.
  • " ⁇ 0,0 ⁇ ”, “ ⁇ 0,1 ⁇ ”, “ ⁇ 1,1 ⁇ ”, “ ⁇ 1,0 ⁇ ” are in one-to-one correspondence with the cyclic shifts of the four sequences, but the specific mapping method is not limited.
  • the frequency domain resource for sending the first request information is different from the frequency domain resource for sending the HARQ.
  • the second terminal device uses a first resource block (resource block, RB) to send the first request information, uses a second RB to send HARQ, and the first RB is different from the second RB.
  • the second terminal device uses the first resource block set to send the first request information, uses the second resource block set to send HARQ, and the first resource block set is different from the second resource block set.
  • the first terminal device distinguishes the first request information and HARQ from the second terminal device according to different frequency domain resources.
  • the resource used for HARQ transmission may be a transmission resource configured periodically in the resource pool, or may be a transmission resource configured at a specific position in the COT with the starting position of the COT as a reference point. That is, resources used for HARQ transmission are periodically configured in the COT. For example, taking the starting position of the COT as a reference point, the Kth time slot in the COT is a resource for transmitting HARQ.
  • K can be one or more values, which is called a pattern (Pattern) in the present invention.
  • the first terminal device may indicate a pattern (Pattern) of the first resource, and the pattern may indicate a position of the HARQ resource in the first resource.
  • the second terminal device can determine resources for sending HARQ according to the pattern.
  • the first terminal device may use a bitmap (bitmap) to indicate which physical resource blocks (physical resource blocks, PRBs) on symbols used to send the PSFCH can be used to send HARQ, and which PRBs are not used to send HARQ. For example, the value of a bit corresponding to a certain PRB is "1", indicating that the PRB is used for sending HARQ, and correspondingly, the value of a bit corresponding to a certain PRB is "0", indicating that the PRB is not used for sending HARQ.
  • bitmap bitmap
  • the value of a bit corresponding to a certain PRB is "0", indicating that the PRB is used for sending HARQ, and correspondingly, the value of a bit corresponding to a certain PRB is "1", indicating that the PRB is not used for sending HARQ.
  • the value of a bit corresponding to a certain PRB is "1", indicating that the PRB is used for sending HARQ as an example.
  • the second terminal device determines resources available for sending the PSFCH (HARQ) according to the time-frequency resource position of the PSSCH.
  • HARQ PSFCH
  • there may be multiple candidate resources determined by the second terminal device that is, there may be multiple candidate resources for sending PSFCH (HARQ).
  • the second terminal device may use one candidate resource among the plurality of candidate resources to send HARQ, and the remaining candidate resources among the plurality of candidate resources except the resource for sending HARQ may be used to send the first request information.
  • a candidate resource set for sending HARQ may be configured or preconfigured.
  • the second terminal device may select a candidate resource to send HARQ from the set of candidate resources for sending HARQ, and send the first request information on remaining resources except the resource for sending HARQ.
  • a set of candidate resources for sending the first request information may be configured or preconfigured.
  • the second terminal device may select a candidate resource from the set of candidate resources for sending the first request information to send the first request information.
  • FIG. 4 is a schematic diagram of resource configuration for HARQ transmission.
  • the time domain resource in the resource pool includes 6 time slots
  • the frequency domain includes 8 PRBs
  • the configured PSFCH period is 2 as an example.
  • the PRB indicated by "1" on the second slot, the fourth slot and the sixth slot used to transmit PSFCH symbols (that is, the penultimate second symbol and the penultimate third symbol) is used
  • the PRB indicated by "0" is not used for HARQ transmission.
  • the last of the second time slot, the fourth time slot and the sixth time slot in FIG. 4 is a gap.
  • duplication of symbols used to transmit PSFCH refers to repetition of symbols used to transmit PSFCH.
  • the third last symbol of each of the second time slot, the fourth time slot and the sixth time slot is a copy of the second last symbol.
  • the time-frequency resource of the PSSCH may be used to transmit the HARQ candidate resource set. For example, available from choose from time slot i and subchannel j between the PSSCH time slots associated with the PRB and PSFCH time slots. in, 0 ⁇ j ⁇ N subch . Allocated resources are sorted in ascending order from i, then in ascending order from j. Terminal equipment expects yes multiples of .
  • a candidate resource for HARQ transmission may be determined from a set of candidate resources for HARQ transmission according to the following formula (1).
  • P ID is the physical layer source ID indicated in the second-level SCI, and the second-level SCI schedules the PSSCH.
  • the M ID is the identification information of the terminal equipment receiving the PSSCH, and the identification information is indicated by a higher layer.
  • the cast type (cast type) in the second-level SCI is indicated as "01"
  • the M ID is 0.
  • a set of candidate resources corresponding to the PSSCH includes the frequency domain dimension and the code domain dimension.
  • the number of subchannels used for PSSCH transmission. is the number of CS pairs. It is a set of PSFCH candidate resources associated with the PSSCH resource. is a set of PRBs used to transmit HARQ, and N subch is the number of subchannels in the resource pool, where the resource pool is a set of time-frequency resources that can be used to transmit sidelink data. is the period of PSFCH feedback in the resource pool.
  • FIG. 5 is a schematic diagram of determining a candidate resource for HARQ transmission from a set of candidate resources for HARQ transmission.
  • the resources shown in FIG. 5 include three subchannels in the frequency domain, and the numbers j of the three subchannels are 0, 1, and 2 from bottom to top. Each subchannel includes 10 PRBs.
  • the resource shown in FIG. 5 includes 4 time slots in the time domain, and the numbers i of the 4 time slots are 0, 1, 2, and 3 from left to right.
  • the minimum feedback timing from PSFCH to HARQ is 2, that is, the data scheduling of slot 0 and slot 1 needs to be fed back on slot 3.
  • Slot 0 is used to transmit PSCCH or PSSCH.
  • Time slot 0 and time slot 1 need to be fed back in the time slot where PSFCH is located (for example, time slot 3).
  • the last column in Figure 5 is the set of PRBs that can be used to transmit HARQ among the PRBs in the resource pool.
  • the numbering order of PRBs is shown in Figure 5 From top to top, starting from 0.
  • N subch is 3, is 2, according to It can be seen for 3.
  • 18 (illustrated by a dotted line in FIG. 5 ) inside the dotted line box is a PRB whose bitmap indicates 1, that is, a PRB used for HARQ transmission.
  • time slot 0 and sub-channel 0 as an example, assuming that PSSCH is transmitted on time slot 0 and sub-channel 0, according to the above calculation, the range of PRBs used for HARQ transmission in time slot 3 is [0, 2] (that is, PRB0, PRB1 and PRB2) (the PRBs indicated by the shaded parts in FIG. 5).
  • the HARQ candidate resources corresponding to other subchannels and time slots are determined in the same way as above.
  • frequency domain resources and code domain resources not used for HARQ transmission on symbols used to transmit PSFCH may be used to transmit the first request information.
  • remaining resources after excluding resources actually used for HARQ transmission in the set of candidate resources used for HARQ transmission on symbols used for PSFCH transmission may be used to transmit the first request information. That is, the candidate resource set for sending the first request information may also be determined according to the time-frequency resource of the PSSCH. For example, the candidate resource set for sending the first request information may be determined according to the following formula (2).
  • P ID is the physical layer source ID indicated in the second-level SCI, and the second-level SCI schedules the PSSCH.
  • a set of candidate resources corresponding to the PSSCH includes the frequency domain dimension and the code domain dimension. in, is 1 or The number of subchannels used for PSSCH transmission. is the number of CS pairs. It is a set of PSFCH candidate resources associated with the PSSCH resource. It is the PRB set used to send the first resource request information (that is, the subset of the PRB set whose bitmap indicates 0 in the symbol used to transmit PSFCH, or the bitmap in the PRB of the frequency domain resource in the COT corresponding to the symbol used to transmit PSFCH A subset of the set of PRBs indicated as 0).
  • N subch is the number of sub-channels in the resource pool.
  • the resource pool is a set of time-frequency resources available for sending sidelink data. It is the period for sending the first request information in the resource pool. The period of sending the first request information may be the period of HARQ sending.
  • N subch may be the number of corresponding frequency domain resources in the COT, and the frequency domain resources may be PRBs or subchannels.
  • the sub-channels are M PRBs, and M is configured or pre-configured or predefined by the network device.
  • N_PSFCH is the number of time slots used to send the PSSCH corresponding to the HARQ resource position.
  • the candidate resource set used for sending the first request information and the candidate resource set used for sending HARQ may be the same.
  • frequency domain or code domain resources may be used to distinguish resources for sending the first request information and resources for sending HARQ.
  • the resource used to send the first request information and the resource used to send HARQ can be determined by the following formula (3).
  • P ID is the physical layer source ID indicated in the second-level SCI, and the second-level SCI schedules the PSSCH.
  • the M ID is the identification information of the terminal equipment receiving the PSSCH, and the identification information is indicated by a higher layer.
  • the cast type (cast type) in the second-level SCI is indicated as "01"
  • the HARQ feedback mode is multicast option 2
  • the M ID is 0.
  • ⁇ can be 1 or a value that is predefined or configured by the network device or preconfigured by the network device.
  • a set of candidate resources corresponding to the PSSCH includes the frequency domain dimension and the code domain dimension.
  • the number of subchannels used for PSSCH transmission. is the number of CS pairs. It is a set of PSFCH candidate resources associated with the PSSCH resource. is a set of PRBs used to send HARQ, N subch is the number of sub-channels in the resource pool, and the resource pool is a set of time-frequency resources that can be used to send sidelink data. is the period of PSFCH feedback in the resource pool.
  • the second terminal device determines resources for sending the first request information, and sends the first request information to the first terminal device, so as to request to share the first resource of the first terminal device.
  • the first terminal device receives the first request information, and stops using the first resource.
  • the first terminal device may determine whether the second terminal device requests to share the first resource of the first terminal device. If the second terminal device requests to share the first resource of the first terminal device. The first terminal device may share all remaining resources of the first resource for use by the second terminal device. That is, the first terminal device does not use all the remaining resources in the first resource, that is, it does not use all the remaining resources in the first resource to send data.
  • the first terminal device when the first terminal device receives the first request information, it may default that the second terminal device requests to share the first resource of the first terminal device.
  • the first terminal device may determine whether the second terminal device requests to share the first resource of the first terminal device according to content included in the first request information.
  • the first request information only includes the first information, and the first terminal device may determine whether the second terminal device requests to share the first resource of the first terminal device according to the first information.
  • the first request information includes first time information, and the first terminal device determines according to the first time information that the second terminal device requests to share the second resource in the first resources. It can be understood that, if the time domain length of the second resource indicated by the first time information is smaller than the time domain length of remaining resources in the first resource except resources already used by the first terminal device. That is, besides the second resource shared by the second terminal device, there are remaining resources. The first terminal device may subsequently use the remaining resources to send data, so as to improve resource utilization as much as possible, and also share the first resources more flexibly.
  • FIG. 6A shows a schematic diagram of sharing a first resource between a first terminal device and a second terminal device.
  • FIG. 6A takes an example in which the first terminal device does not continue to use the first resource to transmit data after receiving the first request information. And the first terminal device does not use the remaining resources in the first resources to send data subsequently.
  • a first terminal device sends data on a first resource.
  • the second terminal device may send data on the second resource, for example, the second terminal device sends data to the first terminal device on the second resource.
  • the first terminal device may stop sending data on remaining resources of the first resource except resources used by the first terminal device, and receive data from the second terminal device on the second resource.
  • FIG. 6B shows another schematic diagram of sharing a first resource between a first terminal device and a second terminal device.
  • the first terminal device sends data on the first resource.
  • the second terminal device may send data on the second resource, for example, the second terminal device sends data to the first terminal device on the second resource.
  • FIG. 6A shows that in FIG. 6B , when the second terminal device sends the first request information, it carries the time domain length of the second resource requested by the first terminal device. According to the time domain length of the second resource, the first terminal device may determine that there are remaining resources in the first resource except the second resource. After receiving the data on the second resource, the first terminal device subsequently sends data on the remaining resource.
  • the second terminal device may use remaining resources in the first resources to send data to the first terminal device. Further, in order to improve data transmission reliability of the second terminal device, the second terminal device may perform type2A, type2B or type2C LBT before using the remaining resources of the first resource. When the result of the LBT is that the channel is idle, the second terminal device uses the remaining resources in the first resources to send data.
  • the second terminal device requests to share the first resource, and the first terminal device allows the second terminal device to share the first resource by default. That is, the first terminal device receives the first request information from the second terminal device, and stops using the remaining resources of the first resource. For the first terminal, there may also be urgent data to be sent. If the first resource is shared with the second terminal device by default, normal services of the first terminal device will be affected. In addition, if multiple terminal devices all request the first terminal device to share the first resource, and the first terminal device allows the multiple terminal devices to share the first resource, then there may be multiple terminal devices simultaneously preempting the first terminal device's resources. The first resource, resulting in a resource conflict. For this reason, the embodiment of the present application provides a second resource sharing method. In the second resource sharing method, the first terminal device may determine whether to allow other terminal devices to share the first resource, so as to reduce resource conflicts and reduce impact on transmission services of the first terminal device.
  • S201 may be performed before S202, or may be performed after S202.
  • FIG. 7 is a schematic flowchart of a second resource sharing method provided by the embodiment of the present application.
  • the process shown in FIG. 7 takes at least one terminal device sharing resources of the first terminal device as an example.
  • the first terminal device sends first indication information to at least one terminal device, and correspondingly, at least one terminal device respectively receives the first indication information.
  • the first indication information may be used to indicate the first resource of the first terminal device, that is, the COT initialized by the first terminal device.
  • the first indication information reference may be made to the related content of the aforementioned S201, which will not be repeated here.
  • the first terminal device may send the first indication information to one or more terminal devices.
  • the first terminal device may send the first indication information to the second terminal device.
  • the first terminal device may send the first indication information to the second terminal device and the third terminal device.
  • the terminal device that has received the first indication information can learn the first resource of the first terminal device. It can be understood that the first terminal device may send the first indication information to at least one terminal device in a unicast or multicast manner. In FIG. 7 , the third terminal device does not have to exist, so it is shown with a dotted line in FIG. 7 .
  • the second terminal device may request the first terminal device to share the first resource. If the first terminal device sends the first indication information to the second terminal device and the third terminal device, correspondingly, the second terminal device and the third terminal device may respectively request the first terminal device to share the first resource. It should be noted that the second terminal device or the third terminal device may request the first terminal device to share the resource of the first terminal device without knowing the first resource of the first terminal device in advance. That is, S701 is not a necessary step, so it is shown with a dotted line in FIG. 7 .
  • the second terminal device sends the first request information to the first terminal device, and correspondingly, the first terminal device receives the first request information.
  • the first request information may be used to request to share the first resource of the first terminal device.
  • the second terminal device may send a first request message to the first terminal device.
  • the first request message For the specific implementation of the first request message, reference may be made to the relevant content of the aforementioned S202, which will not be repeated here.
  • the first terminal device sends the second indication information to the second terminal device, and correspondingly, the second terminal device receives the second indication information.
  • the first terminal device After receiving the first request information, the first terminal device can determine whether to share the first resource with the second terminal device, that is, whether to allow the second terminal device to use the first resource, and send the first request to the second terminal device
  • the response information of the information for example, the second indication information.
  • the first terminal device may determine whether the second terminal device satisfies one or more conditions from condition 1 to condition 4 in the aforementioned content in FIG. 2 . If the second terminal device satisfies one or more conditions from condition one to condition four, the first terminal device may determine to share the first resource with the second terminal device.
  • the second indication information may be carried in the SCI.
  • Sending the first indication information to the second terminal device by the first terminal device may also be regarded as sending an SCI to the second terminal device by the first terminal device, and the SCI includes the second indication information.
  • the second indication information may be carried in the first-level SCI in the SCI, or in the second-level SCI in the SCI, or in the first-level SCI and the second-level SCI.
  • the second indication information may be in SCI format.
  • the second indication information may be carried in a physical sidelink shared channel (physical sidelink shared channel, PSSCH) in the form of a second-level SCI or MAC CE.
  • the first terminal device sending the second indication information to the second terminal device may also be regarded as that the first terminal device sends a PSSCH to the second terminal device, and the PSSCH includes the second indication information.
  • the first terminal device may use 1 bit in the SCI to indicate the response message.
  • the first terminal device may use 1 bit in the SCI to indicate the second indication information.
  • the second indication information may indicate that the second terminal device is not allowed to use the first resource. If the first terminal device allows the second terminal device to use the first resource, the first terminal device may determine which resources in the first resource are allowed to be used by the second terminal device, so as to meet the requirements of the second terminal device as much as possible. Depending on the content to be indicated by the second indication information, the implementation form of the second indication information is also different. Several implementation forms of the second indication information are introduced below.
  • the second indication information may include second information, and the second information may be used to indicate whether the second terminal device can use the first resource. If the second information is used to indicate that the second terminal device can use the first resource, it may be defaulted that the second terminal device can use the remaining resources of the first resource. After receiving the first request information, the first terminal device stops using the remaining resources of the first resource. The second terminal device uses the remaining resources in the first resources to send data.
  • the second indication information may include second information and second time information.
  • the second information may be used to indicate whether the second terminal device can use the first resource.
  • the second time information may be used to indicate the time domain length of a part of the first resource that is allowed to be shared (for example, the third resource).
  • the second terminal device can send data on the third resource.
  • the second terminal device sends data to the first terminal device on the third resource.
  • the second terminal device may use the resource corresponding to the time domain length indicated by the second time information to send data, and correspondingly, the first terminal device no longer uses the resource corresponding to the time domain length indicated by the second time information to send data.
  • a set or list of multiple time domain lengths may be predefined or configured by the network device.
  • the second time information may include a value in the set, which is used to indicate a time domain length.
  • the second time information may include a row index in the list, which is used to indicate a time domain length.
  • the second indication information may include second time information.
  • the second time information may occupy M bits, where M is a positive integer. It can be understood that M bits correspond to 2 M states.
  • One of the 2 M states may be used to indicate that the second terminal device can share the first resource, that is, the remaining resource in the first resource can be used. In this case, the second terminal device can use all remaining resources in the first resources. After receiving the first request information, the first terminal device stops using the remaining resources in the first resources.
  • another state among the 2 M states may be used to indicate that the second terminal device cannot use the remaining resources of the first resource.
  • the time domain length of the resource (that is, the third resource) that the first terminal device allows the second terminal device to share may be the same as the time domain length of the second resource , may also be different. That is, the time domain length of the third resource indicated by the second time information may be the same as or different from the time domain length of the second resource indicated by the first time information.
  • the second indication information may include second information, second time information, and offset information.
  • the offset information may be used to indicate the time-domain starting position of the third resource.
  • the offset information includes a first offset value
  • the first offset value may be used to indicate an offset between the start position of the time domain of the third resource and the start position of the time domain at which the second indication information is received.
  • the first offset value may be used to indicate an offset between the start position of the time domain of the third resource and the end position of the time domain at which the second indication information is received.
  • the second terminal device can determine the position of the third resource (that is, the start position of the time domain of the third resource and the end position of the time domain of the third resource), and then Send data on.
  • a set or list of multiple offset values may be predefined or configured by the network device.
  • the first offset may include a value in the set.
  • the first offset may comprise a row index in the list.
  • the first offset value is a fixed value.
  • the fixed value can be a network device configuration, pre-configured or predefined.
  • the first offset value may be 0.
  • the offset time unit may be a time slot, a subframe, a symbol, an absolute time, and the like.
  • the offset value may be in units of time slots.
  • FIG. 8A shows a schematic diagram of sharing a first resource between a first terminal device and a second terminal device.
  • the first terminal device receives the first request information, and may determine whether to allow the second terminal device to share the first resource according to first priority information or first time information in the first request information. If the priority indicated by the first priority information is higher than the priority of the data sent by the first terminal device, the first terminal device may determine to allow the second terminal device to share the first resource. Further, the first terminal device may determine to allow the second terminal device to share the third resource in the first resources according to the first time information. The second terminal device can send data on the third resource. The first terminal device no longer uses the third resource to send data, but can receive data on the third resource.
  • FIG. 8A shows a schematic diagram of sharing a first resource between a first terminal device and a second terminal device.
  • the first terminal device 8A takes an example in which a first terminal device receives data from a second terminal device at a third resource. It can be understood that the interval between the third resource and the end position of the time domain at which the first terminal device sends the second indication information, that is, the first offset value may or may not be 0.
  • the second indication information may further include identification information.
  • the first terminal device shares the third resource with the second terminal device, and the identification information may include an identification corresponding to the second terminal device, such as a first identification. That is, the first identifier can be used to indicate the second terminal device, and it can also be understood that the first identifier can be used to indicate that the second terminal device can use the first resource of the first terminal device.
  • the second terminal device is a peer device of the first terminal device, and the first resource is only shared with the second terminal device.
  • the second indication information may not include identification information, that is, not include the first identification.
  • the third resource may be shared with the second terminal device by default.
  • the third terminal device sends the second request information to the first terminal device, and correspondingly, the first terminal device receives the second request information.
  • the third terminal device When the third terminal device needs to request to share the first resource of the first terminal device, it may send the second request information to the first terminal device. Similar to the first request information, the second request information may include one or more information of third information, third time information, and second priority information. Wherein, the third information is used to indicate that the third terminal device requests to use the first resource.
  • the third time information is used to indicate the length of the time domain for requesting to share part of the first resources (for example, the fourth resource).
  • the second priority information is used to indicate the priority of the data to be sent by the third terminal device.
  • the second request information may also be carried on PSFCH or SCI.
  • the second request information may be carried in the second-level SCI or MAC CE, and sent to the first terminal device together with the data sent by the third terminal device to the first terminal device.
  • the second request information is sent to the first terminal device together with the HARQ sent by the third terminal device to the first terminal device.
  • the third terminal device sends the second request information, and sends the first request information with the second terminal device.
  • S702 and S704 are executed by the second terminal device and the third terminal device respectively, so there is no limitation on the execution sequence.
  • S704 may be performed before S703, or may be performed after S703.
  • the first terminal device sends the second indication information to the third terminal device, and correspondingly, the third terminal device receives the second indication information.
  • the first terminal device may also send indication information to the third terminal device, indicating whether the first terminal device allows the third terminal device to share the first resource.
  • the first terminal device may also send the second indication information to the third terminal device.
  • the second information in the second indication information is also used to indicate whether the third terminal device can use the first resource.
  • the third terminal device receives the second indication information, and can determine whether the first resource can be used according to the second information in the second indication information.
  • the first terminal device allows the second terminal device and the third terminal device to share the first resource, but the first terminal device does not indicate which of the first resources the second terminal device and the third terminal device can use resource.
  • the second terminal device and the third terminal device compete to use the first resource, which may cause a resource conflict.
  • the first terminal device allows the third terminal device to share the first resource, the first terminal device also needs to indicate which resources in the first resource are allowed to be shared by the third terminal device, so as to reduce resource conflicts.
  • the second indication information may further include fourth time information.
  • the fourth time information may be used to indicate the time domain length of a part of the first resources (for example, fifth resources) that are allowed to be shared by the third terminal device.
  • the third terminal device can send data on the fifth resource.
  • the third terminal device sends data to the first terminal device on the fifth resource.
  • the time domain length of the fifth resource may be the same as or different from the time domain length of the fourth resource, which is not limited in this embodiment of the present application.
  • the offset information in the second indication information may also include a second offset value, and the second offset value may be used to indicate the difference between the time domain start position of the fifth resource and the time domain start position at which the second indication information is received. offset between.
  • the second offset value may be used to indicate the offset between the start position of the time domain of the fifth resource and the end position of the time domain of the third resource, which the third terminal device can determine according to the second offset value and the second time information The starting position of the time domain of the fifth resource, and then data is sent on the fifth resource. If the second offset value is 0, the third terminal device may determine the starting time domain position of the fifth resource according to the second time information. It can be understood that, if there are remaining resources in the first resource besides the third resource and the fifth resource, the first terminal device can subsequently send data on the remaining resource, thereby improving resource utilization, so that multiple terminal devices Share resources more efficiently and flexibly.
  • FIG. 8B it shows a schematic diagram of a first terminal device sharing a first resource with a second terminal device and a third terminal device. Similar to FIG. 8A, the first terminal device receives the second request information from the third terminal device, and may determine whether to allow the third terminal device to share the second request information according to the second priority information or third time information in the second request information. a resource. If the priority indicated by the second priority information is higher than the priority of the data sent by the first terminal device, the first terminal device may determine to allow the third terminal device to share the first resource. Further, the first terminal device may determine to allow the second terminal device to share the fifth resource in the first resources according to the third time information. The second terminal device may send data on the fifth resource.
  • the first terminal device no longer uses the fifth resource to send data, but can receive data on the fifth resource.
  • FIG. 8B takes an example in which the first terminal device receives data from the third terminal device at the fifth resource. It can be understood that the interval between the start position of the time domain of the fifth resource and the end position of the time domain of the third resource, that is, the second offset value may or may not be 0.
  • the identification information in the second indication information may further include a second identification, where the second identification is used to indicate the third terminal device. It can also be understood that the second identifier is used to indicate that the third terminal device can use the first resource of the first terminal device.
  • the identification information of the terminal device includes but not limited to the following.
  • the identification information may be the identification of the terminal device.
  • FIG. 9A is a schematic structural diagram of the second indication information.
  • FIG. 9A takes x terminal devices sharing the first resource as an example, and the offset values corresponding to the x terminal devices are 0 as an example.
  • the identification information may be a member identification of the group to which the terminal device belongs.
  • FIG. 9B is a schematic structural diagram of the second indication information. The difference from FIG. 9A is that in FIG. 9B , the identification information of the terminal device is the member identification of the group to which the terminal device belongs.
  • the second indication information may be sent in a multicast manner.
  • the identification information may include a source identification and a destination identification.
  • the source ID and the destination ID correspond to a pair of terminal devices.
  • the source identifier corresponds to the first terminal device
  • the destination identifier corresponds to the terminal device allowed to use the first resource.
  • FIG. 9C which is a schematic structural diagram of the second indication information. The difference from FIG. 9A and FIG. 9B is that in FIG. 9C , the identification information of the terminal device is a source ID and a destination ID.
  • the second terminal device and the third terminal device request to share the first resource of the first terminal device as an example.
  • the embodiment of the present application does not limit the number of terminal devices that request to share the first resource of the first terminal device. It should be understood that if there are at least 3 terminal devices requesting to share the first resource of the first terminal device, then any terminal device of the at least 3 terminal devices may perform steps similar to the second terminal device or the third terminal device.
  • the second information in the second indication information sent by the first terminal device may indicate whether each of the at least three terminal devices can share the first resource.
  • the second indication information may include time information corresponding to at least three terminal devices, which may be collectively referred to as shared time information.
  • the second indication information includes shared time information, and the shared time information includes the second time information and the fourth time information, and may further include more time information.
  • the offset information in the second indication information may include more offset values, and the identification information in the second indication information also includes more identification information. I won't go into details here.
  • Each terminal device receives the second indication information, and determines whether the first resource can be shared according to the second information. If the first resource can be shared, the start position of the time domain of the resource that can be shared and the length of the time domain of the resource that can be shared are determined according to the sharing time information and/or the identification information. For example, each terminal device sorts each time information, offset information, and identification information from the least significant bit (least significant bit, LSB) to the most significant bit (most significant bit, MSB) in the received shared time information, to Determine the time domain start position of the resource that can be shared and the time domain length of the resource that can be shared.
  • LSB least significant bit
  • MSB most significant bit
  • the resource occupied by the second terminal device is the first resource after the offset from the position where the second indication information is received.
  • the length of the time domain indicated by the time information That is, the time domain starting position of the resources occupied by the second terminal device is offset+(N-1)*duration from the end time domain position of receiving the second indication information.
  • N is the sequence number of the identification information from LSB to MSB, and N is an integer greater than or equal to 1.
  • duration is the time domain length indicated by the time information corresponding to N.
  • the offset information in the second indication information includes offset values corresponding to x terminal devices respectively
  • the identification information includes the respective identities of x terminal devices
  • the shared time information includes the offset values corresponding to x terminal devices respectively. time information.
  • the terminal device 2 receives the second indication information, can determine the starting position of the third resource according to the first offset value, and then determine the starting position of the third resource according to the first offset value and the time domain starting position of the received second indication information. Time domain start position.
  • the end position of the time domain of the third resource is determined.
  • the third terminal device may determine the position of the fifth resource according to the second offset value and the time domain length indicated by the second time information.
  • the terminal device x can determine the position of the resource that can be shared according to the xth offset value and the time domain length indicated by the time information x ⁇ 1.
  • there is a one-to-one correspondence between the terminal device and the offset value, identification information, and time information which will not be repeated here.
  • the arrangement positions of the offset value, terminal device identifier, and time information in FIG. 9A , FIG. 9B , FIG. 9C and FIG. 10 are only illustrative, and are not limited by this embodiment of the present application.
  • each terminal device may not perform LBT when sharing resources in the first resource according to the second indication information.
  • resources shared by other terminal devices may be occupied by another terminal device considering that the channel is idle.
  • the remaining resources of the first resource are no longer reliable. For this reason, it is possible to reduce the switching time of sending and receiving or the switching time of sending and receiving as much as possible, so as to ensure that the COT initialized by the first terminal device will not be interrupted.
  • other terminal devices may also determine whether to use shareable resources according to the LBT result.
  • the LBT here can be type2A LBT, type2B LBT or type2C LBT.
  • S704 is not executed in FIG. 7
  • S705 is not executed either. Therefore, it is shown with a dotted line in FIG. 7 .
  • the first terminal device may send the second indication information in a multicast manner.
  • the first terminal device may determine whether to allow other terminal devices to share resources of the first terminal device based on the request information of one or more terminal devices, and determine which resources of the first resources to share with the terminal device. In this way, resource conflicts caused by multiple terminal devices competing to share the first resource can be reduced.
  • the first terminal device determines the shared resources of other terminal devices based on the priority information in the request information of other terminal devices, expected shared time domain length or resources, which can meet the delay requirements and QoS requirements of other terminal devices.
  • other terminal devices request to share the first resource of the first terminal device, and the first terminal device responds to the request of other terminal devices and informs whether other terminal devices are allowed to share the first resource. If the first terminal device allows multiple terminal devices to share the first resource, a process of notifying each terminal device of which resources in the first resource to share. The following describes that the first terminal device can actively share the first resource with other devices.
  • FIG. 11 is a schematic flowchart of a third resource sharing method provided by the embodiment of the present application.
  • the process shown in FIG. 11 takes the first terminal device actively sharing the first resource of the first terminal device with other terminal devices as an example.
  • the first terminal device sends third indication information to the second terminal device, and correspondingly, the second terminal device receives the third indication information.
  • the first terminal device may actively share the COT initialized by the first terminal device with one terminal device, for example, the second terminal device.
  • the second terminal device needs to send data, it may send data on some of the first resources allowed to be used by the first terminal device.
  • the first terminal device may also actively share the COT initialized by the first terminal device with multiple terminal devices.
  • the first terminal device may actively share the COT initialized by the first terminal device with the second terminal device and the third terminal device. In this way, when the second terminal device needs to send data, it can send data on some of the first resources that the first terminal device allows the second terminal device to use.
  • the third terminal device needs to send data, it sends data on some of the first resources that the first terminal device allows the third terminal device to use.
  • the first terminal device may send third indication information to the second terminal device, where the third indication information may be used to indicate whether the first terminal device allows the second terminal device to use the first resource (that is, the initialized COT of the first terminal device).
  • the third indication information may be used to indicate whether the first terminal device allows the second terminal device to use the first resource (that is, the initialized COT of the first terminal device).
  • the third indication information may be carried in the SCI.
  • Sending the third indication information to the second terminal device by the first terminal device may also be regarded as sending an SCI to the second terminal device by the first terminal device, where the SCI includes the third indication information.
  • a field in the SCI may be used to indicate the third indication information.
  • the SCI may be a first-level SCI or a second-level SCI.
  • the third indication information may be carried on the PSFCH.
  • the sending of the third indication information by the first terminal device to the second terminal device may also be regarded as that the first terminal device sends a PSFCH to the second terminal device, where the PSFCH includes the third indication information.
  • the third indication information may be carried in a MAC CE or PC5 RRC message.
  • the first terminal device sends the third indication information to the second terminal device, and it can also be considered that the first terminal device sends a MAC CE to the second terminal device, and the MAC CE includes the third indication information.
  • the third indication information may use 1 bit to indicate whether one or more terminal devices are allowed to use the first resource. For example, different SCI formats may be used to indicate whether to share the first resource.
  • CRC scrambling codes of different SCIs may be used to indicate whether to share the first resource.
  • RNTI scrambling codes of different SCIs may be used to indicate whether to share the first resource. It can be understood that the first terminal device actively shares the first resource with multiple terminal devices, and the first terminal device may send the third indication information in a multicast manner.
  • the third indication information further includes identification information to indicate the terminal device that shares the first resource. It can be understood that the identification information corresponds to the terminal devices sharing the first resource. It can also be understood that the identification information indicates that the terminal devices sharing the first resource can use the first resource. For example, the terminal device sharing the first resource is the second terminal device, and the identification information corresponds to the second terminal device. For another example, the terminal devices sharing the first resource are the second terminal device and the third terminal device, and the identification information corresponds to the second terminal device and the third terminal device. It can be understood that if the first terminal device shares the first resource with more terminal devices, correspondingly, the identification information also includes identifications of more terminal devices.
  • the identification information of the terminal device For the specific implementation of the identification information of the terminal device, reference may be made to the relevant content of the aforementioned S504, and details are not repeated here. If the first terminal device shares the first resource with the second terminal device, and the second terminal device is a peer device of the first terminal device, the third indication information may not include identification information.
  • the first terminal device shares the first resource with multiple terminal devices, but the first terminal device does not indicate that the second terminal device and the third terminal device can use the first resource which resources. In this scenario, after multiple terminal devices receive the second indication information, the multiple terminal devices compete to use the first resource, which may cause a resource conflict. For this reason, if the first terminal device allows multiple terminal devices to share the first resource, the first terminal device also needs to indicate which resources in the first resource are allowed to be shared by each terminal device, so as to reduce resource conflicts.
  • the third indication information further includes sharing time information to indicate which resources in the first resources the first terminal device allows other terminal devices to use.
  • the first terminal device shares the first resource with the second terminal device, and correspondingly, the sharing time information includes fifth time information, and the fifth time information is used to indicate the time domain length of the sixth resource in the first resource.
  • the second terminal device may send data on the sixth resource.
  • the first terminal device shares the first resource with the second terminal device and the third terminal device, and correspondingly, the sharing time information includes fifth time information and sixth time information.
  • the fifth time information is used to indicate the time domain length of the sixth resource.
  • the sixth time information is used to indicate the time domain length of the seventh resource in the first resource.
  • the third terminal device may send data on the seventh resource.
  • a set or list of multiple time domain lengths may be predefined or configured by the network device.
  • a time information can include a value in this set.
  • a time information may include the row index in the list. It can be understood that, if the time domain lengths of the resources shared by the first terminal device to each terminal device are the same, a fixed time domain length may be predetermined, and the third indication information may not include time information.
  • the third indication information also includes offset information.
  • the offset information may include one or more offset values, and the shared time information determines the time-domain start position of resources that can be used by each terminal device.
  • a set or list of multiple offset values may be predefined or configured by the network device.
  • the first offset may include a value in the set.
  • the first offset may comprise a row index in the list. Considering the transceiving conversion time between the transmission of the first terminal device and the transmission of other terminal devices, resources shared by other terminal devices may be occupied by another terminal device considering that the channel is idle. In this case, for other terminal devices sharing the first resource, the remaining resources of the first resource are no longer reliable. For this reason, it is possible to reduce the switching time of sending and receiving or the switching time of sending and receiving as much as possible, so as to ensure that the COT initialized by the first terminal device will not be interrupted.
  • the identifiers in the identifier information may be sorted from LSB to MSB, and the offset value and time information corresponding to the identifier information are sorted according to the sequence of the identifier information. Similar to FIG. 10 , each terminal device receives the third indication information, and determines the start position of the time domain of the resource that can be shared and the length of the time domain of the resource that can be shared according to the sharing time information and/or identification information.
  • other terminal devices may not perform LBT when they share resources in the first resource according to the third indication information.
  • other terminal devices may also determine whether to use shareable resources according to the LBT result. If the result of the LBT is that the channel is free, other terminal devices can use the shareable resource. If the result of LBT is that the channel is not idle, other terminal devices will not access the channel.
  • the LBT here can be type2A LBT, type2B LBT or type2C LBT.
  • the first terminal device cannot determine whether other terminal devices have data to send, nor can it determine whether the resources shared by the first terminal device for other terminal devices meet the transmission delay of other terminal devices need. In this way, other terminal devices may not use the resource shared by the first terminal device to other terminal devices, and thus the resource may be considered as an idle resource by another terminal device and occupied, which will cause interruption of the first resource.
  • other terminal devices that need to share the first terminal device can provide some auxiliary information for the first terminal device, so that the first terminal device can use the auxiliary information as a reference to reasonably allocate shared resources for other terminal devices, In order to meet the transmission requirements of each terminal device and the QoS requirements of the transmitted data as much as possible.
  • the other terminal equipment may be a terminal equipment in the sidelink, or may be a terminal equipment of other systems.
  • the second terminal device sends third request information to the first terminal device, and correspondingly, the first terminal device receives the third request information.
  • the third request information may be used by the first terminal device to determine third indication information.
  • the third request information may include one or more of the following information: priority information, delay information, and resource information.
  • the priority information may be used to indicate the priority of the data to be sent by the second terminal device.
  • the delay information may be used to indicate the delay of the data to be sent by the second terminal device.
  • the delay of data to be sent by the second terminal device can be understood as the remaining delay of data to be sent by the second terminal device. For example, the time taken by the second terminal device to send data is 10 ms, but Starting from the 3ms, the remaining delay of the data to be sent by the second terminal device is 7ms.
  • the delay information may be a remaining packet delay budget (packet delay budget, PDB).
  • the resource information may be used to indicate frequency domain resources used by the second terminal device.
  • the third terminal device sends fourth request information to the first terminal device, and correspondingly, the first terminal device receives the fourth request information.
  • the third terminal device sends fourth request information to the first terminal device.
  • the first terminal device may receive request information from multiple terminal devices, and determine whether to share the first resource for the multiple terminal devices.
  • the initial time-domain positions and time-domain lengths of the resources shared by the plurality of terminal devices are further determined, so as to make the first resources uninterrupted as much as possible.
  • S1100a and S1100b are not mandatory steps, therefore, they are illustrated by dotted lines in FIG. 11 .
  • the first terminal device can determine whether to share the first resource for the second terminal device according to the third request information, there may be several situations as follows.
  • the first terminal device After the first terminal device sends the HARQ, it does not receive retransmission data within a first time period. In this situation, it may be considered that the second terminal device has no available resources to send retransmission data within the first time period.
  • the first terminal device may share the first resource with the second terminal device. That is, after the first terminal device sends the HARQ, but does not receive retransmission data within the first time period, the first terminal device sends the third indication information to the second terminal device.
  • the first duration may be calculated from the end time or start time of the HARQ transmission by the first terminal device. For example, if the unit of the first duration is a time slot, then the first duration is calculated from the time slot where the HARQ is sent.
  • the first duration may be configured or predefined or preconfigured by the network device.
  • the first duration may be an absolute time, or may be a time period, a time window or a time interval, which is not limited in this embodiment of the present application.
  • the first terminal device After the first terminal device sends the data, it does not receive the HARQ for the data within the second time period. In this situation, it can be considered that the second terminal device has no available resources to send HARQ within the second time period.
  • the first terminal device may share the first resource with the second terminal device. That is, after the first terminal device sends the data, but does not receive the HARQ of the data within the second time period, the first terminal device sends the third indication information to the second terminal device.
  • the second duration is similar to the first duration, and for specific implementation, reference may be made to related content of the aforementioned first duration, which will not be repeated here.
  • the network device instructs the first terminal device to share the first resource.
  • the network device sends fourth indication information to the first terminal device, where the fourth indication information is used to instruct the first terminal device to share the first resource.
  • the first terminal device receives the fourth indication information, and sends the third indication information.
  • the number of terminal devices that can share the first resource may be predefined or preconfigured or configured by the network device.
  • the first terminal device indicates the starting time domain position and time domain duration of shared resources for the multiple terminal devices according to the number.
  • the terminal device that can share the first resource may be a peer device of the first terminal device.
  • the first terminal device actively shares the first resource with multiple terminal devices.
  • the third indication information sent by the first terminal device may include identification information of the multiple terminal devices.
  • the multiple terminal devices may determine the initial time-domain position and time-domain length of the shareable resources according to their respective identification information. In this way, the resource conflict probability that multiple terminal devices simultaneously access the channel in the sidelink can be reduced.
  • multiple terminal devices can jointly and continuously occupy the channel for a period of time to avoid channel interruption as much as possible, so as to reduce the data transmission delay of each terminal device.
  • the methods provided in the embodiments of the present application are introduced from the perspective of interaction between the first terminal device and the second terminal device.
  • the first terminal device and the second terminal device may include a hardware structure and/or a software module in the form of a hardware structure, a software module, or a hardware structure plus a software module. Realize the above functions. Whether one of the above-mentioned functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • this embodiment of the present application provides a communication device.
  • the following describes the communication device used to implement the above method in the embodiment of the present application with reference to the accompanying drawings.
  • the communication device 1200 can correspondingly realize the functions realized by the first terminal device or the second terminal device in the above-mentioned various method embodiments or step.
  • the communication device may include a processing module 1210 and a transceiver module 1220 .
  • a storage module may also be included, and the storage module may be used to store instructions (code or program) and/or data.
  • the processing module 1210 and the transceiver module 1220 may be coupled with the storage module, for example, the transceiver module 1220 may read instructions (code or program) and/or data in the storage module to implement corresponding methods.
  • Each of the above modules can be set independently, or can be partially or fully integrated.
  • the transceiver module 1220 may be a processor or a controller, such as a general-purpose central processing unit (central processing unit, CPU), a general-purpose processor, digital signal processing (digital signal processing, DSP), an application specific integrated circuit (application specific integrated circuits, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the transceiver module 1220 is an interface circuit of the device for receiving signals from other devices.
  • the transceiver module 1220 is an interface circuit for the chip to receive signals from other chips or devices, or an interface circuit for the chip to send signals to other chips or devices.
  • the communication apparatus 1200 may be the first terminal device or the second terminal device in the foregoing embodiments, or may be a chip located in the first terminal device or the second terminal device.
  • the processing module 1210 may be, for example, a processor
  • the transceiver module 1220 may be, for example, a transceiver.
  • the transceiver may include a radio frequency circuit
  • the storage unit may be, for example, a memory.
  • the processing module 1210 may be a processor
  • the transceiver module 1220 may be an input/output interface, pins or circuits, etc.
  • the processing module 1210 can execute the computer-executed instructions stored in the storage unit.
  • the storage unit is a storage unit in the chip, such as a register, cache, etc., and the storage unit can also be the network device, terminal device or location management Storage units located outside the chip within the device, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM), etc. .
  • ROM read-only memory
  • RAM random access memory
  • the communication apparatus 1200 can correspondingly implement the behavior and function of the first terminal device in the foregoing method embodiments.
  • the communication device 1200 may be a first terminal device, or a component (such as a chip or a circuit) applied to the first terminal device, or a chip or a chipset or a chip used to execute related methods in the first terminal device part of the function.
  • the transceiver module 1220 may be configured to perform all receiving or sending operations performed by the first terminal device in the embodiment shown in FIG. 2 .
  • S201 and S202 in the embodiment shown in FIG. 2 and/or other processes for supporting the technologies described herein, and/or other processes for supporting the technologies described herein.
  • the processing module 1210 may be configured to perform all the operations performed by the first terminal device in the embodiment shown in FIG. 2 except the transceiving operation.
  • S203 in the embodiment shown in FIG. 2 , and/or other processes for supporting the technology described herein.
  • the transceiver module 1220 is configured to send the first indication information to the second terminal device, and receive the first request information from the second terminal device; the transceiver module 1220 receives the first request information, and the processing module 1210 determines to stop Use the first resource.
  • the first indication information is used to indicate the first resource of the first terminal device, for example, the initial COT of the first terminal device.
  • the first request information may include one or more of the following information: first information, first time information, or first priority information.
  • the first information is used to indicate that the second terminal device requests to use the first resource.
  • the first time information is used to indicate the time domain length of the second resource, and the second resource is a part of the first resource.
  • the first priority information is used to indicate the priority of the data to be sent by the second terminal device.
  • the transceiver module 1220 may be configured to perform all receiving or sending operations performed by the first terminal device in the embodiment shown in FIG. 7 .
  • S701 , S702 , and S703 in the embodiment shown in FIG. 7 and/or other processes for supporting the technologies described herein, and/or other processes for supporting the technologies described herein.
  • the processing module 1210 may be configured to execute all operations performed by the first terminal device in the embodiment shown in FIG. 7 except the transceiving operation, and/or other processes for supporting the technology described herein.
  • the transceiving module 1220 is configured to send the first indication information to the second terminal device, receive the first request information from the second terminal device, and send the second indication information to the second terminal device.
  • the first indication information is used to indicate the first resource of the first terminal device.
  • the first request information may include one or more of the following information: first information, first time information, or first priority information.
  • the first information is used to indicate that the second terminal device requests to use the first resource.
  • the first time information is used to indicate the time domain length of the second resource, and the second resource is a part of the first resource.
  • the first priority information is used to indicate the priority of the data to be sent by the second terminal device.
  • the second indication information includes one or more of the following information: third information, sharing time information, offset information, or identification information.
  • the third information is used to indicate whether the second terminal device can use the first resource.
  • the shared time information includes third time information, where the third time information is used to indicate the time domain length of the third resource, and the third resource is a part of the first resource.
  • the offset information includes a first offset value, and the first offset value is used to determine the start position of the third resource in the time domain.
  • the identification information includes a first identification, and the first identification is used to indicate the second terminal device.
  • the transceiver module 1220 is further configured to send first indication information to the third terminal device, and receive second request information from the third terminal device.
  • the second request information includes one or more of the following information: second information, second time information, or second priority information.
  • the third information is used to indicate that the third terminal device requests to use the first resource.
  • the second time information is used to indicate the time domain length of the fourth resource, where the fourth resource is a part of the first resource.
  • the second priority information is used to indicate the priority of the data to be sent by the third terminal device.
  • the transceiver module 1220 is further configured to send second indication information to the third terminal device, where the third information is also used to indicate whether the third terminal device can use the first resource.
  • the shared time information further includes fourth time information, where the fourth time information is used to indicate the time domain length of the fifth resource, and the fifth resource is a part of the first resource.
  • the offset information further includes a second offset value, and the second offset value and/or the third time information are used to determine the start position of the fifth resource in the time domain.
  • the identification information further includes a second identification, which is used to indicate the third terminal device.
  • the transceiver module 1220 is configured to send the second indication information to the second terminal device, including satisfying one or more of the following, the transceiver module 1220 sends the second indication information to the second terminal device:
  • the priority of the data to be sent by the second terminal device is higher than the priority of the data sent by the first terminal device; the priority of the data to be sent by the second terminal device is higher than the first preset priority threshold.
  • the time domain resource bearing the first request information is the same as the time domain resource bearing the HARQ.
  • the frequency domain resource bearing the first request information is different from the frequency domain resource bearing the HARQ.
  • the time domain resource bearing the first request information is the same as the time domain resource bearing the HARQ.
  • the code domain resource bearing the first request information is different from the code domain resource bearing HARQ.
  • the transceiver module 1220 may be configured to perform all receiving or sending operations performed by the first terminal device in the embodiment shown in FIG. 11 .
  • the processing module 1210 may be used to execute all operations performed by the first terminal device in the embodiment shown in FIG. 11 except the transceiving operation, and/or other processes for supporting the technology described herein.
  • the processing module 1210 is configured to determine third indication information.
  • the transceiver module 1220 is configured to send third indication information to the second terminal device.
  • the third indication information includes sharing time information and identification information.
  • the shared time information includes fifth time information, where the fifth time information is used to indicate the time domain length of the sixth resource.
  • the sixth resource is part or all of the first resource of the first terminal device.
  • the sixth resource is used for the second terminal device to send data.
  • the identification information includes a first identification, and the first identification is used to indicate the second terminal device.
  • the transceiver module 1220 sends third indication information to the second terminal device, including:
  • the third indication information is sent to multiple terminal devices, where the multiple terminal devices include a second terminal device and a third terminal device.
  • the shared time information further includes sixth time information, where the sixth time information is used to indicate the time domain length of the seventh resource.
  • the seventh resource is part or all of the first resources of the first terminal device, and the seventh resource is used for the third terminal device to send data.
  • the identification information further includes a second identification, which is used to indicate the third terminal device.
  • the third indication information further includes offset information, where the offset information is used to determine a start position of the sixth resource, and the offset information and shared time information are used to determine a time domain start position of the seventh resource.
  • the transceiver module 1220 is further configured to receive third request information from the second terminal device.
  • the third request information is used to determine third indication information.
  • the third request information includes priority information and/or delay information.
  • the priority information is used to indicate the priority of the data to be sent by the second terminal device.
  • the delay information is used to indicate the delay of the data to be sent by the second terminal device.
  • the transceiver module 1220 sends the third indication information to the second terminal device, including one or more of the following items, the transceiver module 1220 sends the third indication information to the second terminal device: the first terminal The device receives fourth indication information from the network device, where the fourth indication information is used to indicate that the second terminal device can share the first resource; the first terminal device does not receive the HARQ message within the first time period after sending the first data Retransmission of the first data; the first terminal device does not receive the HARQ message of the second data within a second time period after sending the second data.
  • the communication apparatus 1200 can correspondingly implement the behavior and function of the second terminal device in the foregoing method embodiments.
  • the communication device 1200 may be a second terminal device, or a component (such as a chip or a circuit) applied in a second terminal device, or a chip or a chipset in a second terminal device, or a chip used to perform correlation part of the method function.
  • the transceiver module 1220 may be configured to perform all receiving or sending operations performed by the second terminal device in the embodiment shown in FIG. 2 .
  • the processing module 1210 is configured to execute all operations performed by the second terminal device in the embodiment shown in FIG. 2 except the transceiving operation, and/or other processes for supporting the technology described herein.
  • the transceiving module 1220 is configured to receive first indication information from the first terminal device, and send first request information to the first terminal device.
  • the first indication information is used to indicate the first resource of the first terminal device.
  • the first request information may include one or more of the following information: first information, first time information, or first priority information.
  • the first information is used to indicate that the second terminal device requests to use the first resource.
  • the first time information is used to indicate the time domain length of the second resource, and the second resource is a part of the first resource.
  • the first priority information is used to indicate the priority of the data to be sent by the second terminal device.
  • the transceiver module 1220 sends the first request information to the first terminal device if one or more of the following conditions are met: the second terminal device successfully receives the data sent by the first terminal device; the second terminal device The priority of the data to be sent is higher than the priority of the data sent by the first terminal device; the priority value of the data to be sent by the second terminal device is higher than the first preset priority threshold; the second terminal device fails to perform LBT If the number of times is higher than the second preset threshold, the LBT failure means that the result of the LBT is that the channel is not idle.
  • the time domain resources bearing the first request information are the same as the time domain resources bearing the HARQ, and the frequency domain resources bearing the first request information are different from the frequency domain resources bearing the HARQ.
  • the time domain resources bearing the first request information are the same as the time domain resources bearing the HARQ, and the code domain resources bearing the first request information are different from the code domain resources bearing the HARQ.
  • the transceiver module 1220 may be configured to perform all receiving or sending operations performed by the second terminal device in the embodiment shown in FIG. 7 .
  • the processing module 1210 is configured to execute all operations performed by the second terminal device in the embodiment shown in FIG. 7 except the transceiving operation, and/or other processes for supporting the technology described herein.
  • the transceiving module 1220 is configured to receive first indication information from the first terminal device, send first request information to the first terminal device, and receive second indication information from the first terminal device.
  • the first indication information is used to indicate the first resource of the first terminal device.
  • the first request information includes one or more of the following information: first information, first time information, or first priority information.
  • the first information is used to indicate that the second terminal device requests to use the first resource.
  • the first time information is used to indicate the time domain length of the second resource, and the second resource is a part of the first resource.
  • the first priority information is used to indicate the priority of the data to be sent by the second terminal device.
  • the second indication information includes one or more of the following information: third information, sharing time information, offset information, or identification information.
  • the third information is used to indicate whether the second terminal device can use the first resource.
  • the shared time information includes third time information, where the third time information is used to indicate the time domain length of the third resource, and the third resource is a part of the first resource.
  • the offset information includes a first offset value, and the first offset value is used to determine the start position of the third resource in the time domain.
  • the identification information includes a first identification, and the first identification is used to indicate the second terminal device.
  • the third information is further used to indicate whether the third terminal device can use the first resource.
  • the shared time information further includes fourth time information, where the fourth time information is used to indicate the time domain length of the fifth resource, and the fifth resource is a part of the first resource.
  • the offset information further includes a second offset value, and the second offset value and/or the third time information are used to determine the start position of the fifth resource in the time domain.
  • the identification information further includes a second identification, which is used to indicate the third terminal device.
  • the transceiver module 1220 sends the first request information to the first terminal device if one or more of the following conditions are met: the second terminal device successfully receives the data from the first terminal device; the second terminal device The priority of the data to be sent is higher than the priority of the data sent by the first terminal device; the priority of the data to be sent by the second terminal device is higher than the first preset priority threshold; the number of times the second terminal device fails to perform LBT If it is greater than the second preset threshold, the LBT failure is that the result of the LBT is that the channel is not idle.
  • the time domain resources bearing the first request information are the same as the time domain resources bearing the HARQ, and the frequency domain resources bearing the first request information are different from the frequency domain resources bearing the HARQ.
  • the time domain resources bearing the first request information are the same as the time domain resources bearing HARQ, and the code domain resources bearing the first request information are different from the code domain resources bearing HARQ.
  • the time domain resources bearing the second indication information are the same as the time domain resources bearing the HARQ, and the frequency domain resources bearing the second indication information are different from the frequency domain resources bearing the HARQ.
  • the time domain resources bearing the second indication information are the same as the time domain resources bearing the HARQ, and the code domain resources bearing the second indication information are different from the code domain resources bearing the HARQ.
  • the transceiver module 1220 may be configured to perform all receiving or sending operations performed by the second terminal device in the embodiment shown in FIG. 11 .
  • the processing module 1210 may be used to execute all operations performed by the second terminal device in the embodiment shown in FIG. 11 except the transceiving operation, and/or other processes for supporting the technology described herein.
  • the transceiving module 1220 receives third indication information from the first terminal device, and sends data on the sixth resource according to the third indication information.
  • the third indication information includes sharing time information and identification information.
  • the shared time information includes fifth time information, where the fifth time information is used to indicate the time domain length of the sixth resource, where the sixth resource is part or all of the first resource of the first terminal device.
  • the identification information includes a first identification, and the first identification is used to indicate the second terminal device.
  • the shared time information further includes sixth time information, where the sixth time information is used to indicate the time domain length of the seventh resource.
  • the seventh resource is part or all of the first resources of the first terminal device, and the seventh resource is used for the third terminal device to send data.
  • the identification information further includes a second identification, which is used to indicate the third terminal device.
  • the third indication information also includes offset information, where the offset information is used to determine the starting position of the sixth resource. The offset information and shared time information are used to determine the start position of the seventh resource in the time domain.
  • the transceiver module 1220 sends data on the sixth resource according to the third indication information, including: the result of performing LBT is that the channel is idle, and the transceiver module 1220 sends data on the sixth resource.
  • the transceiver module 1220 is further configured to send third request information to the first terminal device.
  • the third request information is used to determine third indication information.
  • the third request information includes priority information and/or delay information.
  • the priority information is used to indicate the priority of the data to be sent by the second terminal device.
  • the delay information is used to indicate the delay of the data to be sent by the second terminal device.
  • processing module 1210 in the embodiment of the present application may be implemented by a processor or a processor-related circuit component
  • transceiver module 1220 may be implemented by a transceiver or a transceiver-related circuit component or a communication interface.
  • a communication device 1300 provided in the embodiment of the present application is provided, wherein the communication device 1300 may be a first terminal device, capable of realizing the functions of the first terminal device in the method provided in the embodiment of the present application.
  • the communication device 1300 may be a second terminal device capable of realizing the functions of the second terminal device in the method provided in the embodiment of the present application; the communication device 1300 may also be capable of supporting the first terminal device in implementing the method provided in the embodiment of the present application An apparatus with a corresponding function, or an apparatus capable of supporting the second terminal device to implement the corresponding function in the method provided in this embodiment of the present application.
  • the communication device 1300 may be a system on a chip.
  • the system-on-a-chip may be composed of chips, or may include chips and other discrete devices.
  • the above-mentioned transceiver module 1220 may be a transceiver, and the transceiver is integrated in the communication device 1300 to form the communication interface 1310 .
  • the communication apparatus 1300 includes at least one processor 1320, configured to implement or support the communication apparatus 1300 to implement the functions of the first terminal device or the second terminal device in the method provided by the embodiment of the present application. For details, refer to the detailed description in the method example, and details are not repeated here.
  • the communication device 1300 may also include at least one memory 1330 for storing program instructions and/or data.
  • the memory 1330 is coupled to the processor 1320 .
  • the coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • Processor 1320 may cooperate with memory 1330 .
  • the processor 1320 may execute program instructions and/or data stored in the memory 1330, so that the communication device 1300 implements a corresponding method. At least one of the at least one memory may be included in the processor. It should be noted that the memory 1330 is not necessary, so it is shown with a dotted line in FIG. 13 .
  • the communication device 1300 may also include a communication interface 1310 for communicating with other devices through a transmission medium, so that devices used in the communication device 1300 can communicate with other devices.
  • a communication interface 1310 for communicating with other devices through a transmission medium, so that devices used in the communication device 1300 can communicate with other devices.
  • the other device is the second terminal device; or, when the communication device is the second terminal device, the other device is the first terminal device.
  • the processor 1320 can use the communication interface 1310 to send and receive data.
  • the communication interface 1310 may specifically be a transceiver.
  • a specific connection medium among the communication interface 1310, the processor 1320, and the memory 1330 is not limited.
  • the memory 1330, the processor 1320, and the communication interface 1310 are connected through the bus 1340.
  • the bus is represented by a thick line in FIG. 13, and the connection mode between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 13 , but it does not mean that there is only one bus or one type of bus.
  • the processor 1320 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement Or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • a general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
  • the memory 1330 may be a non-volatile memory, such as a hard disk (hard disk drive, HDD) or a solid-state drive (solid-state drive, SSD), etc., and may also be a volatile memory (volatile memory), For example random-access memory (random-access memory, RAM).
  • a memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • the memory in the embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, and is used for storing program instructions and/or data.
  • the communication device in the above-mentioned embodiments may be a terminal or a circuit, or a chip applied in a terminal or other combined devices or components having the functions of the above-mentioned terminal.
  • the transceiver module may be a transceiver, which may include an antenna and a radio frequency circuit, etc.
  • the processing module may be a processor, such as a CPU.
  • the transceiver module may be a radio frequency unit, and the processing module may be a processor.
  • the communication device When the communication device is a chip system, the communication device may be an FPGA, an ASIC, a system on chip (system on chip, SoC), a CPU, or a network processor (network processor, NP), It can also be a DSP, a microcontroller (micro controller unit, MCU), a programmable logic device (programmable logic device, PLD) or other integrated chips.
  • the processing module may be a processor of the chip system.
  • the transceiver module or the communication interface may be an input/output interface or an interface circuit of the chip system.
  • the interface circuit may be a code/data read/write interface circuit.
  • the interface circuit can be used to receive code instructions (the code instructions are stored in the memory, can be read directly from the memory, or can also be read from the memory through other devices) and transmitted to the processor; the processor can be used to run all The above-mentioned code instructions are used to execute the methods in the above-mentioned method embodiments.
  • the interface circuit may also be a signal transmission interface circuit between the communication processor and the transceiver.
  • the communication device in the foregoing embodiments may be a chip, and the chip may include a logic circuit, an input/output interface, and may also include a memory.
  • the input-output interface can be used to receive code instructions (the code instructions are stored in the memory, can be read directly from the memory, or can also be read from the memory through other devices) and transmitted to the logic circuit; the logic circuit, It can be used to run the code instructions to execute the methods in the above method embodiments.
  • the input and output interface may also be a signal transmission interface circuit between the logic circuit and the transceiver.
  • Fig. 14 shows a schematic structural diagram of a simplified terminal device.
  • the terminal device takes a mobile phone as an example.
  • the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used for processing the communication protocol and communication data, controlling the on-board unit, executing software programs, and processing data of the software programs.
  • Memory is primarily used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of equipment may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 14 Only one memory and processor are shown in FIG. 14 . In an actual device product, there may be one or more processors and one or more memories.
  • a memory may also be called a storage medium or a storage device. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.
  • the antenna and the radio frequency circuit with the transceiver function can be regarded as the transceiver unit of the device, and the processor with the processing function can be regarded as the processing unit of the device.
  • the device includes a transceiver unit 1410 and a processing unit 1420 .
  • the transceiver unit 1410 may also be called a transceiver, a transceiver, a transceiver device, and the like.
  • the processing unit 1420 may also be called a processor, a processing board, a processing module, a processing device, and the like.
  • the device in the transceiver unit 1410 for realizing the receiving function can be regarded as a receiving unit
  • the device in the transceiver unit 1410 for realizing the sending function can be regarded as a sending unit, that is, the transceiver unit 1410 includes a receiving unit and a sending unit.
  • the transceiver unit 1410 may also be called a transceiver, a transceiver, or a transceiver circuit, etc. sometimes.
  • the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit, etc.
  • the sending unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • transceiver unit 1410 is used to perform the sending operation and the receiving operation of the first terminal device or the second terminal device in the above method embodiment
  • processing unit 1420 is used to perform the first terminal device or the second terminal device in the above method embodiment other operations besides sending and receiving operations.
  • the transceiving unit 1410 can be used to perform the transceiving operation performed by the first terminal device in the embodiment shown in FIG. 2 or FIG. 7 or FIG. 11 , and/or to support the other processes of the technology.
  • the processing unit 1420 may be used to perform all operations except the transceiving operation performed by the first terminal device in the embodiment shown in FIG. 2 , and/or other processes for supporting the technology described herein.
  • the transceiving unit 1410 can be used to perform the transceiving operation performed by the second terminal device in the embodiment shown in FIG. 2 or FIG. 7 or FIG. 11 , and/or to support the other processes of the technology.
  • the processing unit 1420 may be used to perform all operations performed by the second terminal device in the embodiment shown in FIG. 2 except the transceiving operation, and/or other processes for supporting the technology described herein.
  • the device may include a transceiver unit and a processing unit.
  • the transceiver unit may be an input-output circuit and/or a communication interface;
  • the processing unit is an integrated processor or a microprocessor or an integrated circuit.
  • the embodiment of the present application also provides a communication system.
  • the communication system includes multiple terminal devices, or may further include network devices, or may further include more terminal devices.
  • the communication system includes a plurality of terminal devices configured to implement the above-mentioned related functions in FIG. 2 or FIG. 7 or FIG. 11 .
  • These multiple terminal devices are respectively used to realize the functions of the first terminal device or the second terminal device in FIG. 2 or FIG. 7 or FIG. 11 .
  • An embodiment of the present application also provides a computer-readable storage medium, including instructions, which, when run on a computer, cause the computer to perform the method performed by the first terminal device or the second terminal device in Figure 2 or Figure 7 or Figure 11 .
  • An embodiment of the present application also provides a computer program product, including instructions, which, when run on a computer, cause the computer to execute the method performed by the first terminal device or the second terminal device in FIG. 2 or FIG. 7 or FIG. 11 .
  • An embodiment of the present application provides a chip system, where the chip system includes a processor and may further include a memory, configured to implement functions of the first terminal device or the second terminal device in the foregoing method.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices and methods may 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 can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk.

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Abstract

La présente demande divulgue un procédé de partage de ressources et un appareil de communication. Le procédé comprend les étapes suivantes : un premier appareil terminal envoie des premières informations d'indication à un second appareil terminal, reçoit des premières informations de demande en provenance du second appareil terminal et envoie des secondes informations d'indication au second appareil terminal. Les premières informations d'indication sont utilisées pour indiquer une première ressource du premier appareil terminal. Les premières informations de demande peuvent comprendre un ou plusieurs éléments des informations suivantes : des premières informations, des premières informations de temps et des premières informations de priorité. Les deuxièmes informations d'indication comprennent un ou plusieurs éléments des informations suivantes : des troisièmes informations, des informations de temps partagées, des informations de décalage et des informations d'identification. Dans la solution, lorsqu'un second appareil terminal doit partager une première ressource, le second appareil terminal peut demander de partager la première ressource au moyen de premières informations de demande. Le premier dispositif terminal indique, en réponse aux premières informations de demande, quelles ressources dans la première ressource peuvent être partagées par le second appareil terminal, ce qui permet d'améliorer la fiabilité de transmission de données de liaison latérale du deuxième dispositif terminal.
PCT/CN2022/107441 2021-08-06 2022-07-22 Procédé de partage de ressources et appareil de communication WO2023011218A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111565475A (zh) * 2019-02-14 2020-08-21 索尼公司 用户设备、网络侧设备、无线通信方法和存储介质
US20210014892A1 (en) * 2019-07-11 2021-01-14 Qualcomm Incorporated Methods, apparatuses and systems for user equipment (ue)-to-ue sharing of channel occupancy time
WO2021026891A1 (fr) * 2019-08-15 2021-02-18 Oppo广东移动通信有限公司 Procédé de transmission de données de liaison latérale, équipement terminal et dispositif de réseau
WO2021061880A1 (fr) * 2019-09-25 2021-04-01 Qualcomm Incorporated Partage de temps d'occupation de canal (cot) pour liaison latérale
CN114051747A (zh) * 2021-09-23 2022-02-15 北京小米移动软件有限公司 一种共享信道占用时间的方法及其装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111565475A (zh) * 2019-02-14 2020-08-21 索尼公司 用户设备、网络侧设备、无线通信方法和存储介质
US20210014892A1 (en) * 2019-07-11 2021-01-14 Qualcomm Incorporated Methods, apparatuses and systems for user equipment (ue)-to-ue sharing of channel occupancy time
WO2021026891A1 (fr) * 2019-08-15 2021-02-18 Oppo广东移动通信有限公司 Procédé de transmission de données de liaison latérale, équipement terminal et dispositif de réseau
WO2021061880A1 (fr) * 2019-09-25 2021-04-01 Qualcomm Incorporated Partage de temps d'occupation de canal (cot) pour liaison latérale
CN114051747A (zh) * 2021-09-23 2022-02-15 北京小米移动软件有限公司 一种共享信道占用时间的方法及其装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
APPLE: "Discussion on Inter-UE Coordination for Mode 2 Resource Allocation", 3GPP DRAFT; R1-2008447, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20201026 - 20201113, 24 October 2020 (2020-10-24), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051946667 *

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