WO2024026701A1 - 一种信道占用时间cot的共享方法及其装置 - Google Patents

一种信道占用时间cot的共享方法及其装置 Download PDF

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Publication number
WO2024026701A1
WO2024026701A1 PCT/CN2022/109814 CN2022109814W WO2024026701A1 WO 2024026701 A1 WO2024026701 A1 WO 2024026701A1 CN 2022109814 W CN2022109814 W CN 2022109814W WO 2024026701 A1 WO2024026701 A1 WO 2024026701A1
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Prior art keywords
cot
terminal device
information
domain resources
sharing
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PCT/CN2022/109814
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English (en)
French (fr)
Inventor
赵文素
Original Assignee
北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202280002621.6A priority Critical patent/CN115553024A/zh
Priority to PCT/CN2022/109814 priority patent/WO2024026701A1/zh
Publication of WO2024026701A1 publication Critical patent/WO2024026701A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]

Definitions

  • the present disclosure relates to the field of communication technology, and in particular, to a method and device for sharing channel occupancy time COT.
  • Sidelink also called side link
  • performance requirements such as transmission bandwidth, communication rate, communication delay, reliability, and scalability. It is getting higher and higher, and the limited licensed spectrum alone cannot meet the diverse application scenarios and needs in the future. Therefore, research on Sidelink communication technology for terminal equipment on unlicensed spectrum is very urgent.
  • Embodiments of the present disclosure provide a method and device for sharing channel occupancy time COT, which can be applied in the field of communication technology.
  • embodiments of the present disclosure provide a method for sharing channel occupancy time COT.
  • the method is executed by a first terminal device.
  • the method includes: sending COT sharing information to a second terminal device, where the COT sharing information is used for Indicate the COT used by the second terminal device.
  • the first terminal device sends COT sharing information to the second terminal device, so that the second terminal device can share COT with the first terminal device based on the COT sharing information, thereby allowing the terminal device to obtain longer communication time and improve LBT. success rate to meet communication business needs.
  • embodiments of the present disclosure provide another method for sharing channel occupancy time COT.
  • the method is executed by a second terminal device.
  • the method includes: receiving COT sharing information sent by the first terminal device.
  • the COT sharing information Used to indicate the COT used by the second terminal device.
  • the second terminal device determines the COT it uses by receiving the COT sharing information sent by the first terminal device, so that it can share the COT with the first terminal device based on the COT sharing information, thereby allowing the terminal device to obtain longer communication time. , improve the success rate of LBT and meet the needs of communication services.
  • an embodiment of the present disclosure provides a first terminal device, including:
  • the transceiver module is configured to send COT sharing information to the second terminal device, where the COT sharing information is used to indicate the COT used by the second terminal device.
  • an embodiment of the present disclosure provides a second terminal device, including:
  • a transceiver module configured to receive COT sharing information sent by the first terminal device, where the COT sharing information is used to indicate the COT used by the second terminal device.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the first aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the second aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; when the computer program is executed by the processor, the communication device is caused to execute the above-mentioned The method described in the first aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; when the computer program is executed by the processor, the communication device is caused to execute the above-mentioned The method described in the second aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the first aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.
  • an embodiment of the present disclosure provides a communication system, which includes the first terminal device described in the third aspect and the second terminal device described in the fourth aspect, or the system includes the first terminal device described in the fifth aspect.
  • the communication device and the communication device described in the sixth aspect, or the system includes the communication device described in the seventh aspect and the communication device described in the eighth aspect, or the system includes the communication device described in the ninth aspect and The communication device according to the tenth aspect.
  • embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the first terminal device. When the instructions are executed, the method described in the first aspect is implemented. .
  • embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the second terminal device. When the instructions are executed, the method described in the second aspect is implemented. .
  • the present disclosure also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the first aspect.
  • the present disclosure also provides a computer program product including a computer program, which, when run on a computer, causes the computer to execute the method described in the second aspect.
  • the present disclosure provides a chip system, which includes at least one processor and an interface for supporting the first terminal device to implement the functions involved in the first aspect, for example, determining or processing the functions involved in the above method. at least one of data and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the first terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present disclosure provides a chip system, which includes at least one processor and an interface for supporting a second terminal device to implement the functions involved in the second aspect, for example, determining or processing the functions involved in the above method. at least one of data and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the second terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present disclosure provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.
  • the present disclosure provides a computer program that, when run on a computer, causes the computer to perform the method described in the second aspect.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure
  • Figure 2 is a schematic flow chart of a channel occupancy time COT sharing method provided by an embodiment of the present disclosure
  • Figure 3 is a schematic flow chart of a channel occupancy time COT sharing method provided by another embodiment of the present disclosure.
  • Figure 4 is a schematic flow chart of a channel occupancy time COT sharing method provided by another embodiment of the present disclosure.
  • Figure 5 is a schematic flowchart of a channel occupancy time COT sharing method provided by another embodiment of the present disclosure.
  • Figure 6 is a schematic flow chart of a channel occupancy time COT sharing method provided by another embodiment of the present disclosure.
  • Figure 7 is a schematic flow chart of a channel occupancy time COT sharing method provided by another embodiment of the present disclosure.
  • Figure 8 is a schematic flowchart of a channel occupancy time COT sharing method provided by another embodiment of the present disclosure.
  • Figure 9 is a schematic flowchart of a channel occupancy time COT sharing method provided by another embodiment of the present disclosure.
  • Figure 10 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.
  • Figure 11 is a schematic structural diagram of a communication device according to another embodiment of the present disclosure.
  • Figure 12 is a schematic structural diagram of a chip according to an embodiment of the present disclosure.
  • Figure 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present disclosure.
  • the communication system may include but is not limited to three terminal devices, where the terminal devices communicate through Sidelink.
  • the number and form of devices shown in Figure 1 are only for example and do not constitute a limitation on the embodiments of the present disclosure.
  • the communication system shown in FIG. 1 includes a first terminal device 101, a second terminal device 102, and a third terminal device 103 as an example.
  • LTE long term evolution
  • 5th generation fifth generation
  • 5G new radio (NR) system 5th generation new radio
  • the first terminal device 101, the second terminal device 102 and the third terminal device 103 in the embodiment of the present disclosure may respectively be an entity for receiving or transmitting signals, such as a mobile phone.
  • Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc.
  • the terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality (augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc.
  • the embodiments of the present disclosure do not limit the specific technology and specific equipment form used by the terminal equipment.
  • Figure 2 is a schematic flowchart of a channel occupancy time COT sharing method provided by an embodiment of the present disclosure. The method is executed by the first terminal device. As shown in Figure 2, the method may include but is not limited to the following steps:
  • Step 21 Send COT sharing information to the second terminal device.
  • the COT sharing information is used to indicate the COT used by the second terminal device.
  • the first terminal device is used to initiate COT
  • the second terminal device is a terminal device sharing COT.
  • the COT sharing information may include time domain resources and/or frequency domain resources allocated to the second terminal device.
  • the time domain resources allocated by the first terminal device to the second terminal device can be used to indicate which part of the time domain resources of the COT can be shared by the second terminal device, and the second terminal device can then perform information transmission based on the allocated time domain resources.
  • the frequency domain resources allocated by the first terminal device to the second terminal device can be used to indicate which part of the frequency domain resources of the COT can be shared by the second terminal device, and the second terminal device can then perform information transmission based on the allocated frequency domain resources.
  • the second terminal device may perform type 2 (type 2) on the assigned time and frequency domain resources. Listen before talk (LBT) access channel.
  • LBT Listen before talk
  • the COT sharing information may also include COT usage information.
  • the COT usage information is used to notify the terminal device sharing the COT of the usage of the COT.
  • the usage information of COT may include the total length of COT, the length of COT that has been used, the remaining length of COT, the sharing status indication information of COT, etc. This disclosure does not limit this. Therefore, after receiving the usage information of the COT, the second terminal device can share the COT based on the usage information of the COT.
  • the shared status indication information of COT is used to indicate whether the information transmission of the current time slot or micro-time slot uses COT, or whether the information transmission of future time slots or micro-time slots can use COT.
  • the future time slot refers to the current time slot. the next one or more time slots.
  • the first terminal device sends COT sharing information to the second terminal device, so that the second terminal device can share COT with the first terminal device based on the COT sharing information, thereby allowing the terminal device to obtain longer communication time. , improve the success rate of LBT and meet the needs of communication services.
  • Figure 3 is a schematic flowchart of another channel occupancy time COT sharing method provided by an embodiment of the present disclosure. This method is executed by the first terminal device. As shown in Figure 3, the method may include but is not limited to the following steps:
  • Step 31 Send COT sharing information to the second terminal device, where the COT sharing information includes time domain resources and/or frequency domain resources allocated to the second terminal device.
  • the COT sharing information may also include the starting position and length of frequency domain resources, or the starting slot position and slot length of time domain resources.
  • the frequency domain resource allocation granularity can be sub-channel or comb resource block (Interlaced Resource Block, IRB) index index. This disclosure does not limit this.
  • the starting position of the frequency domain resource may be the starting frequency domain resource when the second terminal device performs information transmission. For example, which sub-channel and which comb resource block.
  • the length of the frequency domain resource may be the frequency domain resource occupied by the second terminal device for information transmission.
  • the length of frequency domain resources can be 3 sub-channels and 2 comb resource blocks. This disclosure does not limit this.
  • the frequency domain resources allocated by the first terminal device to each second terminal device may be the same or different. If the first terminal device allocates the same frequency domain resources to each second terminal device, the frequency domain resource information may be indicated only once. If the first terminal device allocates different frequency domain resources to each second terminal device, frequency domain resource information needs to be indicated for each second terminal device.
  • the starting position of the frequency domain resource allocated by the first terminal device to the second terminal device 1 may be subchannel 0,
  • the length can be 4, then the frequency domain resources that the second terminal device 1 can use are subchannel 0-4; the starting position of the frequency domain resources allocated by the first terminal device to the second terminal device 2 is subchannel 3, and the length can be 4 , then the frequency domain resources that the second terminal device 2 can use are subchannels 3-7.
  • the starting time slot position of the time domain resource may be the starting time slot when the second terminal device performs information transmission.
  • the second time slot is solt2
  • the third time slot is solt3 and so on.
  • the length of the time domain resource may be the number of time slots occupied by the second terminal device for information transmission.
  • the length of time domain resources can be 3 time slots, 2 time slots, etc.
  • the second terminal device sharing the COT transmits based on a single time slot, that is, the slot length is 1 slot
  • the second terminal device may only be instructed to share the starting time slot position of the COT.
  • it can be indicated by a time slot offset value relative to the starting position of the COT. This disclosure does not limit this.
  • the starting position of the COT is solt0
  • the time slot offset value of the second terminal device relative to solt0 is 3, then the starting time slot position of the second terminal device is solt2.
  • the slot length is not 1 slot, it is necessary to separately indicate the starting position of the time domain resource allocated to each second terminal device. and length.
  • the total length of the time slot of the COT is 10solt
  • the second terminal equipment sharing the COT includes the second terminal equipment 1, the second terminal equipment 2, and the second terminal equipment 3.
  • the time slots used by the first terminal device are solt0, solt1 and solt2.
  • the actual time slot position allocated to the second terminal device 1 is solt3 and the length is 2; the actual time slot position allocated to the second terminal device 2 is solt5 and the length is solt5. is 3; the actual time slot position allocated to the second terminal device 3 is solt8 and the length is 2.
  • the first terminal device in order for each second terminal device to accurately obtain the time domain resources and/or frequency domain resources allocated by the first terminal device for itself from the COT sharing information, the first terminal device can also share in the COT
  • the information contains identity information of each second terminal device.
  • the COT shared information also includes ID information, and the ID information may include at least one of the following:
  • the group ID (member id) of each second terminal device in the multicast is the group ID (member id) of each second terminal device in the multicast.
  • the identification (Identifier, ID) information included in the COT sharing information is used to indicate the ID information of the second terminal device, that is, to distinguish the identity information of different second terminal devices sharing the same COT.
  • the layer 1 destination ID of the second terminal device can be understood as the physical layer ID of the second terminal device.
  • the first terminal device may also allocate time domain resources and/or frequency domain resources to multiple second terminal devices sharing the same COT according to their corresponding group IDs.
  • the first terminal device sends the time domain resources and/or frequency domain resources allocated to the second terminal device to the second terminal device, so that the second terminal device can share information with the first terminal device based on COT Sharing COT enables terminal equipment to obtain longer communication time, improves LBT success rate, and meets communication business needs.
  • Figure 4 is a schematic flowchart of another channel occupancy time COT sharing method provided by an embodiment of the present disclosure. This method is executed by the first terminal device. As shown in Figure 4, the method may include but is not limited to the following steps:
  • Step 41 Send COT sharing information to the second terminal device.
  • the frequency domain resources allocated to each second terminal device included in the COT sharing information are the same.
  • the frequency domain resources allocated by the first terminal device to all second terminal devices may be the same, and the starting position and length of the frequency domain resources may be pre-configured. It is assumed that the frequency domain resource is the entire LBT subband.
  • the COT shared information may also include time domain resources allocated to the second terminal device and ID information. Therefore, each second terminal device can obtain the corresponding time domain resources from the received COT shared information according to its own ID information.
  • the first terminal device UE1 initiates a COT, and the length of the COT is 4ms.
  • the subcarrier is 15 kilohertz (khz)
  • the length of the COT is 4 slots.
  • UE1 uses slot0 for information transmission, and in slot0 Send COT sharing information, instructing the second terminal device with the destination ID of UE2 to share the time slot slot1 of the COT, and the frequency domain resources used are subchannels subchannel0-4; instructing the second terminal device with the destination ID of UE3 to share the time slot of the COT.
  • the frequency domain resources used are subchannels subchannel 3-7, indicating that the second terminal device with the destination ID UE4 shares the time slot slot 3 of the COT, and the frequency domain resources used are subchannels subchannel 3-7.
  • frequency domain resources can be configured for the second terminal device in advance, and then COT sharing information including time domain resources is sent to the second terminal device, so that the second terminal device can communicate with the first terminal device based on the COT sharing information.
  • Terminal devices share COT, thereby allowing terminal devices to obtain longer communication time, improve LBT success rate, and meet communication business needs.
  • Figure 5 is a schematic flowchart of another channel occupancy time COT sharing method provided by an embodiment of the present disclosure. This method is executed by the first terminal device. As shown in Figure 5, the method may include but is not limited to the following steps:
  • Step 51 Send COT sharing information to the second terminal device.
  • the COT sharing information is used to indicate the COT used by the second terminal device.
  • the COT shared information may include at least one of the following:
  • the shared status indication information of COT is used to indicate whether the information transmission of the current time slot or micro-time slot uses COT, or whether the information transmission of future time slots or micro-time slots can use COT.
  • a slot refers to the next one or more time slots of the current time slot
  • a future micro time slot refers to the next one or more micro time slots of the current micro time slot.
  • the remaining length of the COT can be understood as the length of the COT that can be used by the second terminal device, which can be determined by the first terminal device based on different situations.
  • a bit length may be used to represent the remaining length of the COT. For example, assuming that the remaining length of the COT is 3 slots, "0111" can be used to represent it.
  • the indicator signal (indicator) can be used to indicate the remaining length of the COT. The indicator will indicate a certain row in the preconfigured remaining length table of the COT. This row corresponds to the value of the remaining length of the COT, in slots or minislots.
  • 1-bit length information may be used to represent the shared status indication information of the COT.
  • “1" may indicate that the COT is not interrupted
  • the second terminal device can share the COT for information transmission in the current time slot or future time slots
  • the second terminal device uses type2LBT to access the channel.
  • “0” indicates that the COT has been interrupted.
  • the second terminal device cannot share the COT for information transmission in the current time slot or future time slots, and can only use type 1 type 1 LBT access channel.
  • the COT sharing information sent by the first terminal device includes the remaining length of the COT.
  • the first terminal device UE1 initiates a COT with a length of 6 slots.
  • UE1 itself uses slot 0 for information transmission, so the remaining length of the sent COT is 5 slots.
  • the second terminal device UE2 sharing the COT UE2 shares the COT and uses slot 1 for information transmission, then UE2 continues to send the remaining length of the COT, which is 4 slots, until the other second terminal device sharing the COT uses the last slot, that is, slot 5, for information transmission, and sends The remaining length of the COT is 0.
  • the COT sharing information sent by the first terminal device includes sharing status indication information of the COT.
  • the first terminal device UE1 initiates a COT with a length of 6 slots.
  • UE1 uses slot 0 for its own transmission and sends the shared status information of the COT. If the information bit is "1", it indicates that the COT is not interrupted.
  • the second terminal device UE2 The COT can be shared, information is transmitted on slot1, and the sharing status information of the COT is sent. If the information bit is "0", it indicates that the COT is interrupted. Starting from slot2, other terminal devices can meet the conditions of cot sharing even if the information bit is "0". , this COT cannot be used, and other terminal equipment can only use type 1 (type1) LBT to access the channel.
  • type 1 type 1
  • COT sharing information can be sent to the second terminal device, so that the second terminal device can share COT with the first terminal device based on the COT sharing information, thereby enabling the terminal device to obtain longer communication time, improve LBT success rate, and meet communication business needs.
  • Figure 6 is a schematic flowchart of another channel occupancy time COT sharing method provided by an embodiment of the present disclosure. This method is executed by the second terminal device. As shown in Figure 6, the method may include but is not limited to the following steps:
  • Step 61 Receive COT sharing information sent by the first terminal device.
  • the COT sharing information is used to indicate the COT used by the second terminal device.
  • the first terminal device is used to initiate COT
  • the second terminal device is a terminal device sharing COT.
  • the COT sharing information may include time domain resources and/or frequency domain resources allocated by the first terminal device to the second terminal device.
  • the time domain resources allocated by the first terminal device to the second terminal device can be used to indicate which part of the time domain resources of the COT can be shared by the second terminal device, and the second terminal device can then perform information transmission based on the allocated time domain resources.
  • the frequency domain resources allocated by the first terminal device to the second terminal device can be used to indicate which part of the frequency domain resources of the COT can be shared by the second terminal device, and the second terminal device can then perform information transmission based on the allocated frequency domain resources.
  • the second terminal device may use Type 2 based on the allocated time domain resources and/or frequency domain resources. (type2) listen before talk (LBT) method to access the channel.
  • Type2 listen before talk
  • the COT sharing information may also include COT usage information.
  • the usage information of the COT is used to notify the second terminal device sharing the COT of the usage of the COT.
  • the usage information of COT may include the total length of COT, the length of COT that has been used, the remaining length of COT, the sharing status indication information of COT, etc. This disclosure does not limit this.
  • the second terminal device can share the COT based on the usage information of the COT.
  • the shared status indication information of COT is used to indicate whether the information transmission of the current time slot uses COT, or whether the information transmission of future time slots can use COT.
  • the future time slot refers to the next or multiple time slots of the current time slot. .
  • the second terminal device determines the COT it uses by receiving the COT sharing information sent by the first terminal device, so that it can share the COT with the first terminal device based on the COT sharing information, thereby enabling the terminal device to obtain longer communication time, improve LBT success rate, and meet communication business needs.
  • Figure 7 is a schematic flowchart of another channel occupancy time COT sharing method provided by an embodiment of the present disclosure. This method is executed by the second terminal device. As shown in Figure 7, the method may include but is not limited to the following steps:
  • Step 71 Receive COT sharing information sent by the first terminal device, where the COT sharing information includes time domain resources and/or frequency domain resources allocated by the first terminal device to the second terminal device.
  • the COT sharing information may also include the starting position and length of frequency domain resources, or the starting slot position and slot length of time domain resources.
  • the frequency domain resource allocation granularity can be sub-channel or comb resource block (Interlaced Resource Block, IRB) index index. This disclosure does not limit this.
  • the starting position of the frequency domain resource may be the starting frequency domain resource when the second terminal device performs information transmission. For example, which sub-channel and which comb resource block.
  • the length of the frequency domain resource may be the frequency domain resource occupied by the second terminal device for information transmission.
  • the length of frequency domain resources can be 3 sub-channels and 2 comb resource blocks. This disclosure does not limit this.
  • the frequency domain resources allocated by the first terminal device to each second terminal device included in the COT sharing information may be the same or different. If the first terminal device allocates the same frequency domain resources to each second terminal device, the frequency domain resource information may be indicated only once. If the first terminal device allocates different frequency domain resources to each second terminal device, frequency domain resource information needs to be indicated for each second terminal device.
  • the starting position of the frequency domain resource allocated by the first terminal device to the second terminal device 1 may be subchannel 0,
  • the length can be 4, then the frequency domain resources that the second terminal device 1 can use are subchannel 0-4; the starting position of the frequency domain resources allocated by the first terminal device to the second terminal device 2 is subchannel 3, and the length can be 4 , then the frequency domain resources that the second terminal device 2 can use are subchannels 3-7.
  • each second terminal device can determine its corresponding frequency domain resource from the COT shared information based on its own ID information.
  • the starting time slot position of the time domain resource may be the starting time slot when the second terminal device performs information transmission.
  • the second time slot is solt2
  • the third time slot is solt3 and so on.
  • the length of the time domain resource may be the number of time slots occupied by the second terminal device for information transmission.
  • the length of time domain resources can be 3 time slots, 2 time slots, etc.
  • the second terminal device sharing the COT transmits based on a single time slot, that is, the slot length is 1 slot
  • the second terminal device may only be instructed to share the starting time slot position of the COT.
  • it can be indicated by a time slot offset value relative to the starting position of the COT. This disclosure does not limit this.
  • the starting position of the COT is solt0
  • the time slot offset value of the second terminal device relative to solt0 is 3, then the starting time slot position of the second terminal device is solt2.
  • the slot length is not 1 slot, it is necessary to separately indicate the starting position of the time domain resource allocated to each second terminal device. and length.
  • the total length of the time slot of the COT is 10solt
  • the second terminal equipment sharing the COT includes the second terminal equipment 1, the second terminal equipment 2, and the second terminal equipment 3.
  • the time slots used by the first terminal device are solt0, solt1 and solt2.
  • the actual time slot position allocated to the second terminal device 1 is solt3 and the length is 2;
  • the actual time slot position allocated to the second terminal device 2 is solt5 and the length is solt5.
  • the actual time slot position allocated to the second terminal device 3 is solt8 and the length is 2.
  • each second terminal device can obtain its own time domain resources for information transmission from the COT shared information based on its own ID information.
  • the first terminal device in order for each second terminal device to accurately obtain the time domain resources and/or frequency domain resources allocated by the first terminal device for itself from the COT sharing information, the first terminal device can also share in the COT
  • the information contains identity information of each second terminal device.
  • the COT shared information also includes ID information, and the ID information may include at least one of the following:
  • the group ID of each second terminal device in the multicast is the group ID of each second terminal device in the multicast.
  • the ID information included in the COT sharing information is used to indicate the ID information of each second terminal device, that is, to distinguish the identity information of different second terminal devices sharing the same COT.
  • the layer 1 destination ID of the second terminal device can be understood as the physical layer ID of the second terminal device.
  • Step 72 Based on time domain resources and/or frequency domain resources, use the Type 2 listen-before-transmit LBT method to access the channel.
  • the second terminal device after obtaining the corresponding time domain resources and/or frequency domain resources from the COT shared information, the second terminal device can use Type 2Type2 listen before sending LBT based on the time domain resources and/or frequency domain resources. method to access the channel, thereby realizing the transmission of information.
  • the second terminal device can share with the first terminal device based on the time domain resources and/or frequency domain resources by receiving the time domain resources and/or frequency domain resources allocated to it by the first terminal device.
  • COT enables terminal equipment to obtain longer communication time, improves LBT success rate, and meets communication business needs.
  • Figure 8 is a schematic flowchart of another channel occupancy time COT sharing method provided by an embodiment of the present disclosure. This method is executed by the second terminal device. As shown in Figure 8, the method may include but is not limited to the following steps:
  • Step 81 Receive the COT sharing information sent by the first terminal device.
  • the frequency domain resources allocated by the first terminal device to each second terminal device included in the COT sharing information are the same.
  • the frequency domain resources allocated by the first terminal device to all second terminal devices may be the same, and the starting position and length of the frequency domain resources may be pre-configured. It is assumed that the frequency domain resource is the entire LBT subband.
  • the COT shared information may also include time domain resources allocated to the second terminal device and ID information. Therefore, each second terminal device can obtain the corresponding time domain resource from the received COT shared information according to its own ID information.
  • the first terminal device UE1 initiates a COT, and the length of the COT is 4ms.
  • the subcarrier is 15 kilohertz (khz)
  • the length of the COT is 4 slots.
  • UE1 uses slot0 for information transmission, and in slot0 Send COT sharing information, instructing the second terminal device with the destination ID of UE2 to share the time slot slot1 of the COT, and the frequency domain resources used are subchannels subchannel0-4; instructing the second terminal device with the destination ID of UE3 to share the time slot of the COT.
  • the frequency domain resources used are subchannels subchannel 3-7, indicating that the second terminal device with the destination ID UE4 shares the time slot slot 3 of the COT, and the frequency domain resources used are subchannels subchannel 3-7.
  • each second terminal device can transmit information based on its corresponding time domain resources and frequency domain resources.
  • the second terminal device receives the COT shared information sent by the first terminal device and performs information transmission based on the COT shared information, thereby realizing sharing the COT with the first terminal device, thereby enabling the terminal device to obtain longer communication time, improve LBT success rate, and meet communication business needs.
  • Figure 9 is a schematic flowchart of another channel occupancy time COT sharing method provided by an embodiment of the present disclosure. This method is executed by the second terminal device. As shown in Figure 9, the method may include but is not limited to the following steps:
  • Step 91 Receive COT sharing information sent by the first terminal device.
  • the COT sharing information is used to indicate the COT used by the second terminal device.
  • COT shared information can include at least one of the following:
  • COT shared status indication information
  • the shared status indication information of COT is used to indicate whether the information transmission of the current time slot or micro-time slot uses COT, or whether the information transmission of future time slots or micro-time slots can use COT.
  • the future time slot refers to the next time slot of the current time slot.
  • One or more time slots, future micro time slots refer to the next or multiple micro time slots of the current micro time slot.
  • the indicator signal can be used to indicate the remaining length of the COT.
  • the indicator will indicate a certain row in the preconfigured remaining length table of the COT. This row corresponds to the value of the remaining length of the COT, in slots or minislots.
  • 1-bit length information may be used to represent the shared status indication information of the COT.
  • "1" can indicate that the COT is not interrupted.
  • the second terminal device can share the COT for information transmission in the current time slot or future time slots.
  • the second terminal device uses type 2 LBT to access the channel.
  • "0" indicates that the COT has been interrupted.
  • the second terminal device cannot share the COT for information transmission in the current time slot or future time slots, and can only use type 1 type 1 LBT access channel.
  • the COT sharing information sent by the first terminal device includes the remaining length of the COT.
  • the first terminal device UE1 initiates a COT with a length of 6 slots.
  • UE1 uses slot 0 for information transmission, so the remaining length of the sent COT is 5 slots.
  • the COT sharing information sent by the first terminal device includes sharing status indication information of the COT.
  • the first terminal device UE1 initiates a COT with a length of 6 slots.
  • UE1 uses slot 0 for its own transmission and sends the shared status information of the COT. If the information bit is "1", it indicates that the COT is not interrupted.
  • the second terminal device UE2 The COT can be shared and type2LBT can be enabled to access the channel.
  • Step 92 Update the COT shared information.
  • the second terminal device can share the COT based on the COT sharing information.
  • the second device uses the shared COT for information transmission, it will cause the COT to be shared. Information changes. Therefore, the second terminal device needs to update the COT shared information.
  • the second terminal device can determine the remaining length of the COT based on its own usage of the COT.
  • the remaining length of the sent COT is 5 slots.
  • the second terminal device UE2 uses slot 1 for information transmission, and then the terminal device UE2 updates the remaining length of the COT, that is, the remaining length of the updated COT is 4 slot.
  • the second terminal device can also determine whether other terminal devices sharing the COT share the COT in the information transmission of the current time slot, or indicate whether the COT is shared in the future time slot. Whether the information transmission shares COT.
  • the first terminal device UE1 initiates a COT with a length of 6 slots.
  • UE1 uses slot 0 for its own transmission and sends the shared status information of the COT.
  • the information bit is "1", indicating that the COT is not interrupted.
  • the second terminal device UE2 can share the COT and transmit information on slot1.
  • the second terminal device UE2 can update the shared status information of the COT. If the information bit of the updated shared status information of the COT is "0", it indicates that the COT is interrupted. Starting from slot 2, other terminal devices can satisfy the COT even if the COT is interrupted. Under the condition of sharing, the COT cannot be used. Other terminal equipment can only use type 1 (type1) LBT to access the channel. If the information bit of the shared status information of the updated COT is "1", it indicates that the COT is not interrupted. Starting from slot 2, other terminal equipment can use the COT, and other terminal equipment can use type 2 LBT to access the channel.
  • Step 93 Send the updated COT sharing information to the third terminal device.
  • the third terminal device may be a terminal device that shares the COT but has not yet performed information transmission based on the COT.
  • the second terminal device sends the updated COT sharing information to the third terminal device, so that the third terminal device sharing the COT can share the COT based on the updated COT sharing information.
  • the second terminal device can share the COT with the first terminal device through the received COT sharing information, and send the updated COT sharing information to the third terminal device, so that the third terminal device can Based on the updated COT sharing information, the COT is shared, thereby realizing the sharing of COT between terminal devices, allowing the terminal devices to obtain longer communication time, improve the LBT success rate, and meet the communication business needs.
  • the methods provided by the embodiments of the present disclosure are introduced from the perspectives of the first terminal device and the second terminal device respectively.
  • the first terminal device and the second terminal device may include a hardware structure and a software module to implement the above-mentioned functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a certain function among the above functions can be executed by a hardware structure, a software module, or a hardware structure plus a software module.
  • FIG. 10 is a schematic structural diagram of a communication device 100 provided by an embodiment of the present disclosure.
  • the communication device 100 shown in FIG. 10 may include a processing module 1001 and a transceiver module 1002.
  • the transceiving module 1002 may include a sending module and/or a receiving module.
  • the sending module is used to implement the sending function
  • the receiving module is used to implement the receiving function.
  • the transceiving module 1002 may implement the sending function and/or the receiving function.
  • the communication device 100 may be a terminal device, a device in the first terminal device, or a device that can be used in conjunction with the first terminal device.
  • Communication device 100 on the first terminal equipment side, includes:
  • the transceiver module 1002 is configured to send COT sharing information to the second terminal device, where the COT sharing information is used to indicate the COT used by the second terminal device.
  • the COT sharing information includes time domain resources and/or frequency domain resources allocated to the second terminal device.
  • the COT shared information also includes the starting position and length of frequency domain resources, or the starting slot position and slot length of time domain resources.
  • the COT shared information also includes ID information, and the ID information includes at least one of the following:
  • the group ID of each second terminal device in the multicast is the group ID of each second terminal device in the multicast.
  • the frequency domain resources allocated to each second terminal device included in the COT sharing information are the same.
  • the COT shared information includes at least one of the following:
  • COT shared status indication information
  • the shared status indication information of COT is used to indicate whether the information transmission of the current time slot or micro-time slot uses COT, or whether the information transmission of future time slots or micro-time slots can use COT.
  • the first terminal device sends COT sharing information to the second terminal device, so that the second terminal device can share COT with the first terminal device based on the COT sharing information, thereby allowing the terminal device to obtain longer communication time. , improve the success rate of LBT and meet the needs of communication services.
  • the communication device 100 may be a second terminal device, a device in the second terminal device, or a device that can be used in conjunction with the second terminal device.
  • Communication device 100 on the second terminal equipment side, includes:
  • the transceiver module 1002 is configured to receive COT sharing information sent by the first terminal device, where the COT sharing information is used to indicate the COT used by the second terminal device.
  • the COT sharing information includes time domain resources and/or frequency domain resources allocated by the first terminal device to the second terminal device.
  • the COT shared information also includes the starting position and length of frequency domain resources, or the starting slot position and slot length of time domain resources.
  • the COT shared information also includes ID information, and the ID information includes at least one of the following:
  • the group ID of each second terminal device in the multicast is the group ID of each second terminal device in the multicast.
  • the frequency domain resources allocated by the first terminal device to the second terminal device included in the COT sharing information are the same.
  • the processing module 1001 is configured to use the Type 2 listen-before-transmit LBT method to access the channel based on time domain resources and/or frequency domain resources.
  • the COT shared information includes at least one of the following:
  • COT shared status indication information
  • the shared status indication information of COT is used to indicate whether the information transmission of the current time slot or micro-time slot uses COT, or whether the information transmission of future time slots or micro-time slots can use COT.
  • the processing module 1001 is used to update COT shared information
  • the transceiver module 1002 is used to send the updated COT shared information to the third terminal device.
  • the second terminal device determines the COT used by it by receiving the COT sharing information sent by the first terminal device, so that it can share the COT with the first terminal device based on the COT sharing information, thereby enabling the terminal device to obtain longer communication time, improve LBT success rate, and meet communication business needs.
  • FIG. 11 is a schematic structural diagram of another communication device 110 provided by an embodiment of the present disclosure.
  • the communication device 110 may be a first terminal device, a second terminal device, a chip, a chip system, a processor, etc. that supports the first terminal device to implement the above method, or a second terminal device that supports the above method.
  • Method chip, chip system, or processor, etc. The device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
  • Communication device 110 may include one or more processors 1101.
  • the processor 1101 may be a general-purpose processor or a special-purpose processor, or the like. For example, it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data.
  • the central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.
  • the communication device 110 may also include one or more memories 1102, on which a computer program 1104 may be stored.
  • the processor 1101 executes the computer program 1104, so that the communication device 110 performs the steps described in the above method embodiments. method.
  • the memory 1102 may also store data.
  • the communication device 110 and the memory 1102 can be provided separately or integrated together.
  • the communication device 110 may also include a transceiver 1105 and an antenna 1106.
  • the transceiver 1105 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 1105 may include a receiver and a transmitter.
  • the receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function;
  • the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
  • the communication device 110 may also include one or more interface circuits 1107.
  • the interface circuit 1107 is used to receive code instructions and transmit them to the processor 1101 .
  • the processor 1101 executes the code instructions to cause the communication device 110 to perform the method described in the above method embodiment.
  • the communication device 110 is a first terminal device: the transceiver 1105 is used to perform step 21 in Figure 2; step 31 in Figure 3; step 41 in Figure 4; or step 51 in Figure 5.
  • the communication device 110 is a second terminal device: the processor 1101 is used to perform step 72 in Figure 7; step 92 in Figure 9; the transceiver 1105 is used to perform step 61 in Figure 6; step 71 in Figure 7; Figure Step 81 in Figure 8; or Step 91 and Step 93 in Figure 9.
  • the processor 1101 may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
  • the processor 1101 may store a computer program 1103, and the computer program 1103 runs on the processor 1101, causing the communication device 110 to perform the method described in the above method embodiment.
  • the computer program 1103 may be solidified in the processor 1101, in which case the processor 1101 may be implemented by hardware.
  • the communication device 110 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
  • the processors and transceivers described in this disclosure may be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board, PCB), electronic equipment, etc.
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS n-type metal oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 11 .
  • the communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • the IC collection may also include storage components for storing data and computer programs;
  • the communication device may be a chip or a chip system
  • the chip 120 shown in FIG. 12 includes a processor 1201 and an interface 1202.
  • the number of processors 1201 may be one or more, and the number of interfaces 1202 may be multiple.
  • the interface 1202 is used to execute step 21 in Figure 2; step 31 in Figure 3; step 41 in Figure 4; or step 51 in Figure 5.
  • Processor 1201 the processor 1101 is used to execute step 72 in Figure 7; step 92 in Figure 9.
  • the interface 1202 is used to execute step 61 in Figure 6; step 71 in Figure 7; step 81 in Figure 8; or step 91 and step 93 in Figure 9.
  • the chip also includes a memory 1203, which is used to store necessary computer programs and data.
  • Embodiments of the present disclosure also provide a communication system that includes a communication device as a first terminal device and a communication device as a second terminal device in the embodiment of FIG. 11 , or the system includes a communication device as a second terminal device in the embodiment of FIG. 12 .
  • the present disclosure also provides a computer-readable storage medium on which instructions are stored. When the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.
  • the present disclosure also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer programs.
  • the computer program When the computer program is loaded and executed on a computer, the processes or functions described in accordance with the embodiments of the present disclosure are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated therein.
  • the available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.
  • magnetic media e.g., floppy disks, hard disks, magnetic tapes
  • optical media e.g., high-density digital video discs (DVD)
  • DVD digital video discs
  • semiconductor media e.g., solid state disks, SSD
  • At least one in the present disclosure can also be described as one or more, and the plurality can be two, three, four or more, and the present disclosure is not limited.
  • the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D” etc.
  • the technical features described in “first”, “second”, “third”, “A”, “B”, “C” and “D” are in no particular order or order.
  • first, second, third, etc. may be used to describe various information in the embodiments of this application, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other.
  • first information may also be called second information, and similarly, the second information may also be called first information.
  • second information may also be called first information.
  • the words "if” and “if” as used herein may be interpreted to mean “when” or “when” or “in response to a determination” or "under the circumstances.”
  • each table in this disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which is not limited by this disclosure.
  • it is not necessarily required to configure all the correspondences shown in each table.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.
  • Predefinition in this disclosure may be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

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Abstract

一种信道占用时间COT的共享方法及其装置，可应用于通信技术领域，其中，由第一终端设备执行的方法包括：向第二终端设备发送COT共享信息，所述COT共享信息用于指示所述第二终端设备所使用的COT。由此，第二终端设备可以基于COT共享信息与第一终端设备共享COT，进而使终端设备获得更长的通信时间，提高LBT成功率，满足通信业务需求。

Description

一种信道占用时间COT的共享方法及其装置 技术领域
本公开涉及通信技术领域，尤其涉及一种信道占用时间COT的共享方法及其装置。
背景技术
在随着新的通信业务及应用需求的不断产生，终端直连(Sidelink，SL，也叫侧行链路)通信对传输带宽、通信速率、通信时延、可靠性、可扩展性等性能要求越来越高，仅靠有限的授权频谱无法满足未来多样化的应用场景及需求。因此，在非授权频谱上的终端设备Sidelink通信技术研究是十分迫切的。
发明内容
本公开实施例提供一种信道占用时间COT的共享方法及其装置，可应用于通信技术领域中。
第一方面，本公开实施例提供一种信道占用时间COT的共享方法，所述方法由第一终端设备执行，该方法包括：向第二终端设备发送COT共享信息，所述COT共享信息用于指示所述第二终端设备所使用的COT。
本公开中，第一终端设备通过向第二终端设备发送COT共享信息，使第二终端设备可以基于COT共享信息与第一终端设备共享COT，进而使终端设备获得更长的通信时间，提高LBT成功率，满足通信业务需求。
第二方面，本公开实施例提供另一种信道占用时间COT的共享方法，所述方法由第二终端设备执行，该方法包括：接收第一终端设备发送的COT共享信息，所述COT共享信息用于指示所述第二终端设备所使用的COT。
本公开中，第二终端设备通过接收第一终端设备发送COT共享信息，确定自己所使用的COT，从而可以基于COT共享信息与第一终端设备共享COT，进而使终端设备获得更长的通信时间，提高LBT成功率，满足通信业务需求。
第三方面，本公开实施例提供一种第一终端设备，包括：
收发模块，用于向第二终端设备发送COT共享信息，所述COT共享信息用于指示所述第二终端设备所使用的COT。
第四方面，本公开实施例提供一种第二终端设备，包括：
收发模块，用于接收第一终端设备发送的COT共享信息，所述COT共享信息用于指示所述第二终端设备所使用的COT。
第五方面，本公开实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第一方面所述的方法。
第六方面，本公开实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第二方面所述的方法。
第七方面，本公开实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；当所述计算机程序被所述处理器执行时，使该通信装置执行上述第一方面所述的方法。
第八方面，本公开实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；当所述计算机程序被所述处理器执行时，使该通信装置执行上 述第二方面所述的方法。
第九方面，本公开实施例提供一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第一方面所述的方法。
第十方面，本公开实施例提供一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第二方面所述的方法。
第十一方面，本公开实施例提供一种通信系统，该系统包括第三方面所述的第一终端设备以及第四方面所述的第二终端设备，或者，该系统包括第五方面所述的通信装置以及第六方面所述的通信装置，或者，该系统包括第七方面所述的通信装置以及第八方面所述的通信装置，或者，该系统包括第九方面所述的通信装置以及第十方面所述的通信装置。
第十二方面，本发明实施例提供一种计算机可读存储介质，用于储存为上述第一终端设备所用的指令，当所述指令被执行时，使上述第一方面所述的方法被实现。
第十三方面，本发明实施例提供一种计算机可读存储介质，用于储存为上述第二终端设备所用的指令，当所述指令被执行时，使上述第二方面所述的方法被实现。
第十四方面，本公开还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
第十五方面，本公开还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。
第十六方面，本公开提供一种芯片系统，该芯片系统包括至少一个处理器和接口，用于支持第一终端设备实现第一方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中，所述芯片系统还包括存储器，所述存储器，用于保存第一终端设备必要的计算机程序和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
第十七方面，本公开提供一种芯片系统，该芯片系统包括至少一个处理器和接口，用于支持第二终端设备实现第二方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中，所述芯片系统还包括存储器，所述存储器，用于保存第二终端设备必要的计算机程序和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
第十八方面，本公开提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
第十九方面，本公开提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。
附图说明
为了更清楚地说明本公开实施例或背景技术中的技术方案，下面将对本公开实施例或背景技术中所需要使用的附图进行说明。
图1是本公开实施例提供的一种通信系统的架构示意图；
图2是本公开一实施例提供的一种信道占用时间COT的共享方法的流程示意图；
图3是本公开另一实施例提供的一种信道占用时间COT的共享方法的流程示意图；
图4是本公开另一实施例提供的一种信道占用时间COT的共享方法的流程示意图；
图5是本公开另一实施例提供的一种信道占用时间COT的共享方法的流程示意图；
图6是本公开另一实施例提供的一种信道占用时间COT的共享方法的流程示意图；
图7是本公开另一实施例提供的一种信道占用时间COT的共享方法的流程示意图；
图8是本公开另一实施例提供的一种信道占用时间COT的共享方法的流程示意图；
图9是本公开另一实施例提供的一种信道占用时间COT的共享方法的流程示意图；
图10是本公开一实施例的通信装置的结构示意图；
图11是本公开另一实施例的通信装置的结构示意图；
图12是本公开一实施例的芯片的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
为了便于理解，首先介绍本申请涉及的术语。
为了更好的理解本公开实施例公开的一种信道占用时间COT的共享方法，下面首先对本公开实施例适用的通信系统进行描述。
请参见图1，图1为本公开实施例提供的一种通信系统架构示意图。该通信系统可以包括但不限于三个终端设备，其中，终端设备之间通过Sidelink通信。图1所示的设备数量和形态仅用于举例并不构成对本公开实施例的限定。图1所示的通信系统以包括第一终端设备101、第二终端设备102和第三终端设备103为例。
需要说明的是，本公开实施例的技术方案可以应用于各种通信系统。例如：长期演进(long term evolution，LTE)系统、第五代(5th generation，5G)移动通信系统、5G新空口(newradio，NR)系统，或者其他未来的新型移动通信系统等。
本公开实施例中的第一终端设备101、第二终端设备102和第三终端设备103可以分别是一种用于接收或发射信号的实体，如手机。终端设备也可以称为终端设备(terminal)、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端设备(mobile terminal，MT)等。终端设备可以是具备通信功能的汽车、智能汽车、手机(mobile phone)、穿戴式设备、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备等等。本公开的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
可以理解的是，本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案，并不构成对于本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。
下面结合附图对本公开所提供的信道占用时间COT的共享方法及其装置进行详细地介绍。
请参见图2，图2是本公开实施例提供的一种信道占用时间COT的共享方法的流程示意图,该方法由第一终端设备执行。如图2所示，该方法可以包括但不限于如下步骤：
步骤21，向第二终端设备发送COT共享信息，COT共享信息用于指示第二终端设备所使用的COT。
其中，第一终端设备用于发起COT，第二终端设备为共享COT的终端设备。
在一种实现方式中，COT共享信息可以包括为第二终端设备分配的时域资源和/或频域资源。
其中，第一终端设备为第二终端设备分配的时域资源可以用于指示第二终端设备可以共享COT的哪一部分时域资源，进而第二终端设备可以基于分配的时域资源进行信息传输。
其中，第一终端设备为第二终端设备分配的频域资源可以用于指示第二终端设备可以共享COT的哪一部分频域资源，进而第二终端设备可以基于分配的频域资源进行信息传输。
在一种实现方式中，第二终端设备在接收到第一终端设备分配的COT的时域资源和/或频域资源之后，可以在分配的时频域资源上，执行类型2(type2)先听后发(listen before talk，LBT)接入信道。
在一种实现方式中，COT共享信息还可以包括COT的使用情况信息。
其中，COT的使用情况信息用于通知共享该COT的终端设备，该COT的使用情况。比如，COT的使用情况信息可以包括COT的总长度，COT已经使用的长度，COT的剩余长度，COT的共享状态指示信息等等。本公开对此不做限定。从而，第二终端设备在接收到COT的使用情况信息之后，可以基于COT的使用情况信息，共享该COT。
其中，COT的共享状态指示信息，用于指示当前时隙或微时隙的信息传输是否使用COT，或者将来的时隙或微时隙的信息传输能否使用COT，将来时隙指当前时隙的下一个或者多个时隙。
通过实施本公开实施例，第一终端设备通过向第二终端设备发送COT共享信息，使第二终端设备可以基于COT共享信息与第一终端设备共享COT，进而使终端设备获得更长的通信时间，提高LBT成功率，满足通信业务需求。
请参见图3，图3是本公开实施例提供的另一种信道占用时间COT的共享方法的流程示意图,该方法由第一终端设备执行。如图3所示，该方法可以包括但不限于如下步骤：
步骤31，向第二终端设备发送COT共享信息，COT共享信息中包括为第二终端设备分配的时域资源和/或频域资源。
在一种实现方式中，COT共享信息还可以包括频域资源的起始位置和长度，或者时域资源的起始时隙位置和时隙长度。
可选的，频域资源分配粒度可以为子信道或者梳齿资源块(Interlaced Resource Block，IRB)索引index。本公开对此不做限定。
其中，频域资源的起始位置可以为第二终端设备进行信息传输时的起始频域资源。比如，第几个子信道，第几个梳齿资源块。
其中，频域资源的长度可以为第二终端设备进行信息传输所占用的频域资源。比如，频域资源的长度可以为3个子信道、2个梳齿资源块。本公开对此不做限定。
可选的，第一终端设备为每个第二终端设备分配的频域资源可以相同，也可以不同。若第一终端设备为每个第二终端设备分配的频域资源相同，则可以只指示一次频域资源信息。若第一终端设备为每个第二终端设备分配的频域资源不同，则需要为每个第二终端设备指示频域资源信息。
举例来说，在第一终端设备为每个第二终端设备分配的频域资源不同的情况下，第一终端设备为第二终端设备1分配的频域资源的起始位置可以为subchannel 0，长度可以为 4，则第二终端设备1可以使用的频域资源为subchannel 0-4；第一终端设备为第二终端设备2分配的频域资源的起始位置为subchannel 3，长度可以为4，则第二终端设备2可以使用的频域资源为subchannel 3-7。
其中，时域资源的起始时隙位置可以为第二终端设备进行信息传输时的起始时隙。比如。第二个时隙solt2，第三个时隙solt3等。
其中，时域资源的长度可以为第二终端设备进行信息传输所占用的时隙的数量。比如，时域资源的长度可以为3个时隙、2个时隙等。
在本公开的一些实施例中，若共享COT的第二终端设备基于单时隙发送，即时隙长度为1个slot，则可以只指示第二终端设备可共享该COT的起始时隙位置。可选的，可以通过相对于该COT的起始位置的时隙偏移值来指示。本公开对此不做限定。
比如，COT的起始位置为solt0,第二终端设备相对于solt0的时隙偏移值为3，则第二终端设备的起始时隙位置为solt2。
在本公开的一些实施例中，若共享COT的第二终端设备基于多时隙发送，即时隙长度不为1个slot，则需要分别指示为每个第二终端设备分配的时域资源起始位置和长度。
举例来说，COT的时隙总长度为10solt,共享该COT的第二终端设备包括第二终端设备1、第二终端设备2、第二终端设备3。第一终端设备用的时隙为solt0、solt1及solt2,为第二终端设备1分配的其实时隙位置为solt3,长度为2；为第二终端设备2分配的其实时隙位置为solt5,长度为3；为第二终端设备3分配的其实时隙位置为solt8,长度为2。
本公开实施例中，为了使每个第二终端设备可以从COT共享信息中准确地获取第一终端设备为自己分配的时域资源和/或频域资源，第一终端设备还可以在COT共享信息中包含每个第二终端设备的身份信息。
在一种实现方式中，COT共享信息还包括ID信息，ID信息可以包括以下至少一项：
第二终端设备的层1目的ID或源ID信息；
组播中的每个第二终端设备的组ID(member id)。
本公开实施例中，COT共享信息中包含的标识(Identifier，ID)信息，用于指示第二终端设备的ID信息，即用于区分共享同一COT的不同第二终端设备的身份信息。
其中，第二终端设备的层1目的ID，可以理解为第二终端设备的物理层ID。
在一种实现方式中，第一终端设备还可以根据共享同一COT的多个第二终端设备分别对应的组ID，为其分配时域资源和/或频域资源。
通过实施本公开实施例，第一终端设备向第二终端设备发送为第二终端设备分配的时域资源和/或频域资源，从而使第二终端设备可以基于COT共享信息与第一终端设备共享COT，进而使终端设备获得更长的通信时间，提高LBT成功率，满足通信业务需求。
请参见图4，图4是本公开实施例提供的另一种信道占用时间COT的共享方法的流程示意图,该方法由第一终端设备执行。如图4所示，该方法可以包括但不限于如下步骤：
步骤41，向第二终端设备发送COT共享信息，COT共享信息中包括的为每个第二终端设备分配的频域资源是相同的。
本公开实施例中，第一终端设备为所有第二终端设备分配的频域资源可以是相同，且可以预先配置频域资源的起始位置和长度。假设频域资源为整个LBT子带。
本公开实施例中，COT共享信息中还可以包括为第二终端设备分配的时域资源，及ID信息。从而每个第二终端设备可以根据自己的ID信息从接收到的COT共享信息，获取对 应的时域资源。
举例而言，第一终端设备UE1发起1个COT，该COT长度为4ms，当子载波为15千赫兹(khz),COT的长度为4个slot，UE1进行信息传输使用了slot0，并在slot0发送COT共享信息，指示目的ID为UE2的第二终端设备共享该COT的时隙slot1，使用的频域资源为子信道subchannel0-4；指示目的ID为UE3的第二终端设备共享该COT的时隙slot2,使用的频域资源为子信道subchannel3-7,指示目的ID为UE4的第二终端设备共享该COT的时隙slot3,使用的频域资源为子信道subchannel3-7。
通过实施本公开实施例，可以预先为第二终端设备配置频域资源，之后通过向第二终端设备发送包含时域资源的COT共享信息，从而使第二终端设备可以基于COT共享信息与第一终端设备共享COT，进而使终端设备获得更长的通信时间，提高LBT成功率，满足通信业务需求。
请参见图5，图5是本公开实施例提供的另一种信道占用时间COT的共享方法的流程示意图,该方法由第一终端设备执行。如图5所示，该方法可以包括但不限于如下步骤：
步骤51，向第二终端设备发送COT共享信息，COT共享信息用于指示第二终端设备所使用的COT。
在一种实现方式中，COT共享信息可以包括以下至少一项：
COT的剩余长度；
COT的共享状态指示信息；COT的共享状态指示信息，用于指示当前时隙或微时隙的信息传输是否使用COT，或者将来的时隙或微时隙的信息传输能否使用COT，将来时隙指当前时隙的下一个或者多个时隙，将来微时隙指当前微时隙的下一个或者多个微时隙。
其中，在本公开实施例中，COT的剩余长度可理解为可供第二终端设备使用的COT的长度，可以由第一终端设备基于不同情况确定得出。
在本公开的一些实施例中，可采用比特长度对COT的剩余长度进行表示。例如，假设COT的剩余长度为3个时隙(slot)，则可使用“0111”来对其进行表示。可选的，可以通过指示信号(indicator)指示COT的剩余长度，indicator会指示预先配置的COT的剩余长度表格中的某一行，该行对应COT的剩余长度的值，以slot或者minislot为单位。
在本公开实施例中，可以采用1比特位长度的信息对COT的共享状态指示信息进行表示。比如，“1”可以表示该COT没有中断，第二终端设备当前时隙的信息传输或者将来的时隙的信息传输可以共享该COT，第二终端设备使用type2LBT接入信道。“0”表示该COT已经中断了,第二终端设备当前时隙的信息传输或者将来的时隙的信息传输不能共享该COT，只能使用类型1type1的LBT接入信道。
举例来说，若第一终端设备发送的COT共享信息中包括COT的剩余长度。第一终端设备UE1发起了1个长度为6个slot的COT，UE1自身传输使用了slot0进行信息传输，则发送的COT的剩余长度为5个slot，对于共享该COT的第二终端设备UE2，UE2共享该COT，且使用了slot1进行信息传输，则UE2继续发送COT的剩余长度为4个slot，直到共享该COT的其他第二终端设备使用最后1个slot，即slot5进行信息传输，且发送的COT的剩余长度为0。
举例来说，若第一终端设备发送的COT共享信息中包括COT的共享状态指示信息。第一终端设备UE1发起了1个长度为6个slot的COT，UE1自身传输使用了slot0，发送COT的共享状态信息，若信息比特为“1”，表明该COT没有中断，第二终端设备UE2可以共享该COT，并在slot1上进行信息传输，并且发送COT的共享状态信息，若该信息比特为“0”，表明该COT中断，从slot2开始，其他终端设备在即使满足cot共享的条件下，也是不可以使用该COT的，其他终端设备接入信道只能使用类型1(type1)的LBT。
通过实施本公开实施例，可以向第二终端设备发送COT共享信息，从而使第二终端设 备可以使第二终端设备可以基于COT共享信息与第一终端设备共享COT，进而使终端设备获得更长的通信时间，提高LBT成功率，满足通信业务需求。
请参见图6，图6是本公开实施例提供的另一种信道占用时间COT的共享方法的流程示意图,该方法由第二终端设备执行。如图6所示，该方法可以包括但不限于如下步骤：
步骤61，接收第一终端设备发送COT共享信息，COT共享信息用于指示第二终端设备所使用的COT。
其中，第一终端设备用于发起COT，第二终端设备为共享COT的终端设备。
在一种实现方式中，COT共享信息可以包括第一终端设备为第二终端设备分配的时域资源和/或频域资源。
其中，第一终端设备为第二终端设备分配的时域资源可以用于指示第二终端设备可以共享COT的哪一部分时域资源，进而第二终端设备可以基于分配的时域资源进行信息传输。
其中，第一终端设备为第二终端设备分配的频域资源可以用于指示第二终端设备可以共享COT的哪一部分频域资源，进而第二终端设备可以基于分配的频域资源进行信息传输。
在一种实现方式中，第二终端设备在接收到第一终端设备分配的COT的时域资源和/或频域资源之后，可以基于分配的时域资源和/或频域资源，使用类型2(type2)先听后发(listen before talk，LBT)方式接入信道。
在一种实现方式中，COT共享信息还可以包括COT的使用情况信息。
其中，COT的使用情况信息用于通知共享该COT的第二终端设备，该COT的使用情况。比如，COT的使用情况信息可以包括COT的总长度，COT已经使用的长度，COT的剩余长度，COT的共享状态指示信息等等。本公开对此不做限定。进而第二终端设备可以基于COT的使用情况信息，共享该COT。
其中，COT的共享状态指示信息，用于指示当前时隙的信息传输是否使用COT，或者将来的时隙的信息传输能否使用COT，将来时隙指当前时隙的下一个或者多个时隙。
通过实施本公开实施例，第二终端设备通过接收第一终端设备发送COT共享信息，确定自己所使用的COT，从而可以基于COT共享信息与第一终端设备共享COT，进而使终端设备获得更长的通信时间，提高LBT成功率，满足通信业务需求。
请参见图7，图7是本公开实施例提供的另一种信道占用时间COT的共享方法的流程示意图,该方法由第二终端设备执行。如图7所示，该方法可以包括但不限于如下步骤：
步骤71，接收第一终端设备发送的COT共享信息，其中，COT共享信息中包括第一终端设备为第二终端设备分配的时域资源和/或频域资源。
可选的，COT共享信息还可以包括频域资源的起始位置和长度，或者时域资源的起始时隙位置和时隙长度。
可选的，频域资源分配粒度可以为子信道或者梳齿资源块(Interlaced Resource Block，IRB)索引index。本公开对此不做限定。
其中，频域资源的起始位置可以为第二终端设备进行信息传输时的起始频域资源。比如，第几个子信道，第几个梳齿资源块。
其中，频域资源的长度可以为第二终端设备进行信息传输所占用的频域资源。比如，频域资源的长度可以为3个子信道、2个梳齿资源块。本公开对此不做限定。
可选的，COT共享信息中包含的第一终端设备为每个第二终端设备分配的频域资源可以相同，也可以不同。若第一终端设备为每个第二终端设备分配的频域资源相同，则可以 只指示一次频域资源信息。若第一终端设备为每个第二终端设备分配的频域资源不同，则需要为每个第二终端设备指示频域资源信息。
举例来说，在第一终端设备为每个第二终端设备分配的频域资源不同的情况下，第一终端设备为第二终端设备1分配的频域资源的起始位置可以为subchannel 0，长度可以为4，则第二终端设备1可以使用的频域资源为subchannel 0-4；第一终端设备为第二终端设备2分配的频域资源的起始位置为subchannel 3，长度可以为4，则第二终端设备2可以使用的频域资源为subchannel 3-7。之后，每个第二终端设备可以根据自己的ID信息从COT共享信息中，确定自己对应的频域资源。
其中，时域资源的起始时隙位置可以为第二终端设备进行信息传输时的起始时隙。比如。第二个时隙solt2，第三个时隙solt3等。
其中，时域资源的长度可以为第二终端设备进行信息传输所占用的时隙的数量。比如，时域资源的长度可以为3个时隙、2个时隙等。
在本公开的一些实施例中，若共享COT的第二终端设备基于单时隙发送，即时隙长度为1个slot，则可以只指示第二终端设备可共享该COT的起始时隙位置。可选的，可以通过相对于该COT的起始位置的时隙偏移值来指示。本公开对此不做限定。
比如，COT的起始位置为solt0,第二终端设备相对于solt0的时隙偏移值为3，则第二终端设备的起始时隙位置为solt2。
在本公开的一些实施例中，若共享COT的第二终端设备基于多时隙发送，即时隙长度不为1个slot，则需要分别指示为每个第二终端设备分配的时域资源起始位置和长度。
举例来说，COT的时隙总长度为10solt,共享该COT的第二终端设备包括第二终端设备1、第二终端设备2、第二终端设备3。第一终端设备用的时隙为solt0、solt1及solt2,为第二终端设备1分配的其实时隙位置为solt3,长度为2；为第二终端设备2分配的其实时隙位置为solt5,长度为3；为第二终端设备3分配的其实时隙位置为solt8,长度为2。之后，每个第二终端设备可以根据自己的ID信息，从COT共享信息中获取自己进行信息传输的时域资源。
本公开实施例中，为了使每个第二终端设备可以从COT共享信息中准确地获取第一终端设备为自己分配的时域资源和/或频域资源，第一终端设备还可以在COT共享信息中包含每个第二终端设备的身份信息。
在一种实现方式中，COT共享信息还包括ID信息，ID信息可以包括以下至少一项：
第二终端设备的层1目的ID或源ID信息；
组播中的每个第二终端设备的组ID。
本公开实施例中，COT共享信息中包含的ID信息，用于指示每个第二终端设备的ID信息，即用于区分共享同一COT的不同第二终端设备的身份信息。
其中，第二终端设备的层1目的ID，可以理解为第二终端设备的物理层ID。
步骤72，基于时域资源和/或频域资源，使用类型2Type2先听后发LBT方式接入信道。
本公开实施例中，第二终端设备在从COT共享信息中获取对应的时域资源和/或频域资源之后，可以基于时域资源和/或频域资源，使用类型2Type2先听后发LBT方式接入信道，进而实现信息的传输。
通过实施本公开实施例，第二终端设备通过接收第一终端设备为其分配的时域资源和/或频域资源，从而使可以基于时域资源和/或频域资源与第一终端设备共享COT，进而使 终端设备获得更长的通信时间，提高LBT成功率，满足通信业务需求。
请参见图8，图8是本公开实施例提供的另一种信道占用时间COT的共享方法的流程示意图,该方法由第二终端设备执行。如图8所示，该方法可以包括但不限于如下步骤：
步骤81，接收第一终端设备发送的COT共享信息，COT共享信息中包括的第一终端设备为每个第二终端设备分配的频域资源是相同的。
本公开实施例中，第一终端设备为所有第二终端设备分配的频域资源可以是相同，且可以预先配置频域资源的起始位置和长度。假设频域资源为整个LBT子带。
本公开实施例中，COT共享信息中还可以包括为第二终端设备分配的时域资源，及ID信息。从而每个第二终端设备可以根据自己的ID信息从接收到的COT共享信息，获取对应的时域资源。
举例而言，第一终端设备UE1发起1个COT，该COT长度为4ms，当子载波为15千赫兹(khz),COT的长度为4个slot，UE1进行信息传输使用了slot0，并在slot0发送COT共享信息，指示目的ID为UE2的第二终端设备共享该COT的时隙slot1，使用的频域资源为子信道subchannel0-4；指示目的ID为UE3的第二终端设备共享该COT的时隙slot2,使用的频域资源为子信道subchannel3-7,指示目的ID为UE4的第二终端设备共享该COT的时隙slot3,使用的频域资源为子信道subchannel3-7。之后，每个第二终端设备可以基于自己对应的时域资源及频域资源进行信息传输。
通过实施本公开实施例，第二终端设备通过接收第一终端设备发送的COT共享信息，并基于COT共享信息进行信息传输，从而实现了与第一终端设备共享COT，进而使终端设备获得更长的通信时间，提高LBT成功率，满足通信业务需求。
请参见图9，图9是本公开实施例提供的另一种信道占用时间COT的共享方法的流程示意图,该方法由第二终端设备执行。如图9所示，该方法可以包括但不限于如下步骤：
步骤91，接收第一终端设备发送的COT共享信息，COT共享信息用于指示第二终端设备所使用的COT。
可选的，COT共享信息可以包括以下至少一项：
COT的剩余长度；
COT的共享状态指示信息；
COT的共享状态指示信息，用于指示当前时隙或微时隙的信息传输是否使用COT，或者将来的时隙或微时隙的信息传输能否使用COT，将来时隙指当前时隙的下一个或者多个时隙，将来微时隙指当前微时隙的下一个或者多个微时隙。
可选的，可以通过指示信号(indicator)指示COT的剩余长度，indicator会指示预先配置的COT的剩余长度表格中的某一行，该行对应COT的剩余长度的值，以slot或者minislot为单位。
在本公开实施例中，可以采用1比特位长度的信息对COT的共享状态指示信息进行表示。比如，“1”可以表示该COT没有中断，第二终端设备当前时隙的信息传输或者将来的时隙的信息传输可以共享该COT，第二终端设备使用type 2 LBT接入信道。“0”表示该COT已经中断了,第二终端设备当前时隙的信息传输或者将来的时隙的信息传输不能共享该COT，只能使用类型1type 1的LBT接入信道。
举例来说，若第一终端设备发送的COT共享信息中包括COT的剩余长度。第一终端设备UE1发起了1个长度为6个slot的COT，UE1使用了slot0进行信息传输，则发送的COT的剩余长度为5个slot。
举例来说，若第一终端设备发送的COT共享信息中包括COT的共享状态指示信息。第 一终端设备UE1发起了1个长度为6个slot的COT，UE1自身传输使用了slot0，发送COT的共享状态信息，若信息比特为“1”，表明该COT没有中断，第二终端设备UE2可以共享该COT，并可以使type2LBT接入信道。
步骤92，对COT共享信息进行更新。
可以理解的是，第二终端设备在接收到第一终端设备发送的COT共享信息之后，可以基于COT共享信息共享该COT，但是第二设备在使用了共享COT进行信息传输之后，会使COT共享信息发生变化。因此，第二终端设备需要对COT共享信息进行更新。
可选的，若COT共享信息为COT的剩余长度，则第二终端设备可以根据自身对COT的使用情况，确定COT的剩余长度。
比如，第一终端发起了1个长度为6个slot的COT，第一终端设备UE1使用了slot0进行信息传输，则发送的COT的剩余长度为5个slot。第二终端设备UE2在接收到第一终端设备发送的COT的剩余长度之后，使用了slot1进行信息传输，则终端设备UE2对COT的剩余长度进行更新，即更新后的COT的剩余长度为4个slot。
可选的，若COT包括共享信息COT的共享状态指示信息，则第二终端设备还可以确定其他共享该COT的终端设备在当前时隙的信息传输是否共享了COT，或者指示将来的时隙的信息传输是否共享了COT。
比如，第一终端设备UE1发起了1个长度为6个slot的COT，UE1自身传输使用了slot0，发送COT的共享状态信息，信息比特为“1”，表明该COT没有中断，第二终端设备UE2可以共享该COT，并在slot1上进行信息传输。同时，第二终端设备UE2可以对COT的共享状态信息进行更新，若更新后的COT的共享状态信息的信息比特为“0”，表明该COT中断，从slot2开始，其他终端设备在即使满足COT共享的条件下，也是不可以使用该COT的，其他终端设备接入信道只能使用类型1(type1)的LBT。若更新后的COT的共享状态信息的信息比特为“1”，表明该COT没有中断，从slot2开始，其他终端设备可以使用该COT，其他终端设备接入信道可以使用type2的LBT。
步骤93，将更新后的COT共享信息发送给第三终端设备。
其中，第三终端设备可以为共享COT，但是尚未基于该COT进行信息传输的终端设备。
可以理解的是，第二终端设备将更新后的COT共享信息发送给第三终端设备，从而使得共享该COT的第三终端设备可以基于更新后的COT共享信息，共享该COT。通过实施本公开实施例，第二终端设备可以通过接收到的COT共享信息，与第一终端设备共享COT，并将更新后的COT共享信息发送给第三终端设备，从而使第三终端设备可以基于更新后的COT共享信息，共享COT，从而实现了终端设备间共享COT，进入使终端设备获得更长的通信时间，提高LBT成功率，满足通信业务需求。
上述本公开提供的实施例中，分别从第一终端设备、第二终端设备的角度对本公开实施例提供的方法进行了介绍。为了实现上述本公开实施例提供的方法中的各功能，第一终端设备和第二终端设备可以包括硬件结构、软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
请参见图10，为本公开实施例提供的一种通信装置100的结构示意图。图10所示的通信装置100可包括处理模块1001和收发模块1002。
收发模块1002可包括发送模块和/或接收模块，发送模块用于实现发送功能，接收模 块用于实现接收功能，收发模块1002可以实现发送功能和/或接收功能。
可以理解的是，通信装置100可以是终端设备，也可以是第一终端设备中的装置，还可以是能够与第一终端设备匹配使用的装置。
通信装置100，在第一终端设备侧，该装置，包括：
收发模块1002，用于向第二终端设备发送COT共享信息，COT共享信息用于指示第二终端设备所使用的COT。
在一种实现方式中，COT共享信息包括为第二终端设备分配的时域资源和/或频域资源。
在一种实现方式中，COT共享信息还包括频域资源的起始位置和长度，或者时域资源的起始时隙位置和时隙长度。
在一种实现方式中，COT共享信息还包括ID信息，ID信息包括以下至少一项：
第二终端设备的层1目的ID或源ID信息；
组播中的每个第二终端设备的组ID。
在一种实现方式中，所述COT共享信息中包括的为每个第二终端设备分配的频域资源是相同的。
在一种实现方式中，COT共享信息包括以下至少一项：
COT的剩余长度；
COT的共享状态指示信息；
COT的共享状态指示信息，用于指示当前时隙或微时隙的信息传输是否使用COT，或者将来的时隙或微时隙的信息传输能否使用COT。
本公开提供的通信装置，第一终端设备通过向第二终端设备发送COT共享信息，使第二终端设备可以基于COT共享信息与第一终端设备共享COT，进而使终端设备获得更长的通信时间，提高LBT成功率，满足通信业务需求。
可以理解的是，通信装置100可以是第二终端设备，也可以是第二终端设备中的装置，还可以是能够与第二终端设备匹配使用的装置。
通信装置100，在第二终端设备侧，该装置，包括：
收发模块1002，用于接收第一终端设备发送的COT共享信息，COT共享信息用于指示第二终端设备所使用的COT。
在一种实现方式中，COT共享信息包括第一终端设备为第二终端设备分配的时域资源和/或频域资源。
在一种实现方式中，COT共享信息还包括频域资源的起始位置和长度，或者时域资源的起始时隙位置和时隙长度。
在一种实现方式中，COT共享信息还包括ID信息，ID信息包括以下至少一项：
第二终端设备的层1目的ID或源ID信息；
组播中的每个第二终端设备的组ID。
在一种实现方式中，COT共享信息中包括的第一终端设备为第二终端设备分配的频域资源是相同的。
在一种实现方式中，处理模块1001，用于基于时域资源和/或频域资源，使用类型2Type2先听后发LBT方式接入信道。
在一种实现方式中，COT共享信息包括以下至少一项：
COT的剩余长度；
COT的共享状态指示信息；
COT的共享状态指示信息，用于指示当前时隙或微时隙的信息传输是否使用COT，或者将来的时隙或微时隙的信息传输能否使用COT。
在一种实现方式中，处理模块1001，用于对COT共享信息进行更新；
收发模块1002，用于将更新后的COT共享信息发送给第三终端设备。
本公开提供的通信装置，第二终端设备通过接收第一终端设备发送COT共享信息，确定自己所使用的COT，从而可以基于COT共享信息与第一终端设备共享COT，进而使终端设备获得更长的通信时间，提高LBT成功率，满足通信业务需求。
请参见图11，图11是本公开实施例提供的另一种通信装置110的结构示意图。通信装置110可以是第一终端设备，也可以是第二终端设备，也可以是支持第一终端设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持第二终端设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置110可以包括一个或多个处理器1101。处理器1101可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。
可选的，通信装置110中还可以包括一个或多个存储器1102，其上可以存有计算机程序1104，处理器1101执行所述计算机程序1104，以使得通信装置110执行上述方法实施例中描述的方法。可选的，所述存储器1102中还可以存储有数据。通信装置110和存储器1102可以单独设置，也可以集成在一起。
可选的，通信装置110还可以包括收发器1105、天线1106。收发器1105可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器1105可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选的，通信装置110中还可以包括一个或多个接口电路1107。接口电路1107用于接收代码指令并传输至处理器1101。处理器1101运行所述代码指令以使通信装置110执行上述方法实施例中描述的方法。
通信装置110为第一终端设备：收发器1105用于执行图2中的步骤21；图3中的步骤31；图4中的步骤41；或图5中的步骤51。
通信装置110为第二终端设备：处理器1101用于执行图7中的步骤72；图9中的步骤92；收发器1105用于执行图6中的步骤61；图7中的步骤71；图8中的步骤81；或图9中的步骤91、步骤93。
在一种实现方式中，处理器1101中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，处理器1101可以存有计算机程序1103，计算机程序1103在处理器1101上运行，可使得通信装置110执行上述方法实施例中描述的方法。计算机程序1103可能固化在处理器1101中，该种情况下，处理器1101可能由硬件实现。
在一种实现方式中，通信装置110可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本公开中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit  board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络设备或者终端设备，但本公开中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图11的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，可参见图12所示的芯片的结构示意图。图12所示的芯片120包括处理器1201和接口1202。其中，处理器1201的数量可以是一个或多个，接口1202的数量可以是多个。
对于芯片用于实现本公开实施例中终端设备的功能的情况：
接口1202，用于执行图2中的步骤21；图3中的步骤31；图4中的步骤41；或图5中的步骤51。
对于芯片用于实现本公开实施例中网络设备的功能的情况：
处理器1201，处理器1101用于执行图7中的步骤72；图9中的步骤92。
接口1202，用于执行图6中的步骤61；图7中的步骤71；图8中的步骤81；或图9中的步骤91、步骤93。
可选的，芯片还包括存储器1203，存储器1203用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本公开实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本公开实施例保护的范围。
本公开实施例还提供一种通信系统，该系统包括前述图11实施例中作为第一终端设备的通信装置和作为第二终端设备的通信装置，或者，该系统包括前述图12实施例中作为第一终端设备的通信装置和作为第二终端设备的通信装置。
本公开还提供一种计算机可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。
本公开还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时，全部或部分地产生按照本公开实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机程 序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以理解：本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本公开实施例的范围，也表示先后顺序。
本公开中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本公开不做限制。在本公开实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
应当理解，尽管在本申请实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本申请实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。如在此所使用的词语“如果”及“若”可以被解释成为“在……时”或“当……时”或“响应于确定”或“在……情况下”。
本公开中各表所示的对应关系可以被配置，也可以是预定义的。各表中的信息的取值仅仅是举例，可以配置为其他值，本公开并不限定。在配置信息与各参数的对应关系时，并不一定要求必须配置各表中示意出的所有对应关系。例如，本公开中的表格中，某些行示出的对应关系也可以不配置。又例如，可以基于上述表格做适当的变形调整，例如，拆分，合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称，其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时，也可以采用其他的数据结构，例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。
本公开中的预定义可以理解为定义、预先定义、存储、预存储、预协商、预配置、固化、或预烧制。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。
进一步可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟 悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (19)

  1. 一种信道占用时间COT的共享方法，其特征在于，所述方法由第一终端设备执行，所述第一终端设备用于发起COT，所述方法包括：
    向第二终端设备发送COT共享信息，所述COT共享信息用于指示所述第二终端设备所使用的COT。
  2. 如权利要求1所述的方法，其特征在于，所述COT共享信息包括为所述第二终端设备分配的时域资源和/或频域资源。
  3. 如权利要求2所述的方法，其特征在于，所述COT共享信息还包括所述频域资源的起始位置和长度，或者所述时域资源的起始时隙位置和时隙长度。
  4. 如权利要求2所述的方法，其特征在于，所述COT共享信息还包括ID信息，所述ID信息包括以下至少一项：
    所述第二终端设备的层1目的ID或源ID信息；
    组播中的每个第二终端设备的组ID。
  5. 如权利要求2所述的方法，其特征在于，所述COT共享信息中包括的为每个第二终端设备分配的频域资源是相同的。
  6. 如权利要求1所述的方法，其特征在于，所述COT共享信息包括以下至少一项：
    所述COT的剩余长度；
    所述COT的共享状态指示信息；
    所述COT的共享状态指示信息，用于指示当前时隙或微时隙的信息传输是否使用所述COT，或者将来的时隙或微时隙的信息传输能否使用所述COT。
  7. 一种信道占用时间COT的共享方法，其特征在于，所述方法由第二终端设备执行，所述方法包括：
    接收第一终端设备发送的COT共享信息，所述COT共享信息用于指示所述第二终端设备所使用的COT。
  8. 如权利要求7所述的方法，其特征在于，所述COT共享信息包括所述第一终端设备为所述第二终端设备分配的时域资源和/或频域资源。
  9. 如权利要求8所述的方法，其特征在于，所述COT共享信息还包括所述频域资源的起始位置和长度，或者所述时域资源的起始时隙位置和时隙长度。
  10. 如权利要求8所述的方法，其特征在于，所述COT共享信息还包括ID信息，所述ID信息包括以下至少一项：
    所述第二终端设备的层1目的ID或源ID信息；
    组播中的每个所述第二终端设备的组ID。
  11. 如权利要求8所述的方法，其特征在于，所述COT共享信息中包括的所述第一终端设备为每个第二终端设备分配的频域资源是相同的。
  12. 如权利要求8－11任一所述的方法，其特征在于，在接收第一终端设备发送的COT共享信息之后，还包括：
    基于所述时域资源和/或频域资源，使用类型2Type2先听后发LBT方式接入信道。
  13. 如权利要求7所述的方法，其特征在于，所述COT共享信息包括以下至少一项：
    所述COT的剩余长度；
    所述COT的共享状态指示信息；
    所述COT的共享状态指示信息，用于指示当前时隙或微时隙的信息传输是否使用所述COT，或者将来的时隙或微时隙的信息传输能否使用所述COT。
  14. 如权利要求13所述的方法，其特征在于，在所述接收第一终端设备发送的COT共享信息之后，还包括：
    对所述COT共享信息进行更新；
    将更新后的COT共享信发送给第三终端设备。
  15. 一种第一终端设备，包括：
    收发模块，用于向第二终端设备发送COT共享信息，所述COT共享信息用于指示所述第二终端设备所使用的COT。
  16. 一种第二终端设备，包括：
    收发模块，用于接收第一终端设备发送的COT共享信息，所述COT共享信息用于指示所述第二终端设备所使用的COT。
  17. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求1至6中任一项所述的方法，或者执行如权利要求1至14中任一项所述的方法
  18. 一种通信系统，其特征在于，所述通信系统包括第一终端设备及第二终端设备，所述第一终端设备执行如权利要求1-6中任一项所述的方法，所述第二终端设备用于执行如权利要求7-14中任一项所述的方法。
  19. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求1至6中任一项所述的方法被实现，或者使如权利要求7至14中任一项所述的方法被实现。
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