WO2024000530A1 - 一种信道占用时间的共享方法及其装置 - Google Patents

一种信道占用时间的共享方法及其装置 Download PDF

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Publication number
WO2024000530A1
WO2024000530A1 PCT/CN2022/103166 CN2022103166W WO2024000530A1 WO 2024000530 A1 WO2024000530 A1 WO 2024000530A1 CN 2022103166 W CN2022103166 W CN 2022103166W WO 2024000530 A1 WO2024000530 A1 WO 2024000530A1
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WIPO (PCT)
Prior art keywords
time
terminal device
cot
information
allocated
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PCT/CN2022/103166
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English (en)
French (fr)
Inventor
赵文素
赵群
Original Assignee
北京小米移动软件有限公司
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Filing date
Publication date
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 PCT/CN2022/103166 priority Critical patent/WO2024000530A1/zh
Priority to CN202280002130.1A priority patent/CN115362709A/zh
Publication of WO2024000530A1 publication Critical patent/WO2024000530A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • 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

Definitions

  • the present application relates to the field of communication technology, and in particular to a channel occupancy time (COT) sharing method and device.
  • COT channel occupancy time
  • terminal sidelink (SL, also called direct link) communication has higher and higher performance requirements for transmission bandwidth, communication rate, communication delay, reliability, scalability and other performance requirements. is getting higher and higher, and limited licensed spectrum alone cannot meet the diverse application scenarios and needs in the future.
  • COT sharing is supported on terminal sidelink-unlicensed (SL-U) communication on unlicensed spectrum, but the specific implementation of COT sharing is lacking.
  • Embodiments of the present application provide a method and device for sharing channel occupancy time, which can be applied in the field of communication technology to realize that the first terminal device sends COT time allocation indication information to the second terminal equipment, and the COT time allocation indication information is used for Indicates the time allocated to the second terminal device in the COT; the second terminal device shares the COT initiated by the first terminal device, realizing COT sharing between multiple terminal devices, improving resource utilization, and meeting communication service needs.
  • embodiments of the present application provide a method for sharing channel occupancy time.
  • the method is executed by a first terminal device that initiates channel occupancy time COT.
  • the method includes: sending COT time allocation indication information to a second terminal device,
  • the COT time allocation indication information is used to indicate the time allocated to the second terminal device in the COT; the second terminal device shares the COT initiated by the first terminal device.
  • the sum of the time length used for the first terminal device and the time length allocated to the second terminal device is equal to the time length in the COT. same.
  • the number of the second terminal devices is single.
  • the COT time allocation indication information is carried by any one of the following information: first-stage sidelink control information SCI, second-stage SCI information, radio resource control RRC information, and media access control control element MAC CE information.
  • the sending the COT time allocation indication information to the second terminal device includes: sending the COT time allocation indication information to the second terminal device in the first time of the COT;
  • the first time is the starting time unit of the COT, which is the first time slot of the COT, or the first minislot of the COT.
  • the COT time allocation indication information is a bitmap; each bit in the bitmap corresponds to each time unit in the COT, and the length of the bitmap It is the same as the time length in the COT; the value of the bit is used to indicate that the corresponding time unit is used for the first terminal device or allocated to the second terminal device.
  • the COT time allocation indication information includes: a time length used for the first terminal device, a time length allocated to the second terminal device, and a starting time position.
  • the first terminal device and the second terminal device do not support continuous multi-time unit transmission, the length of time used for the first terminal device and the time allocated to the second terminal device
  • the length is a single time unit; or, the first terminal device and the second terminal device support continuous multi-time unit transmission, and the time length used for the first terminal device is a single or multiple time units, allocated to all
  • the time length of the second terminal device is a single or multiple time units.
  • the method further includes: monitoring reserved resource information of a third terminal device; selecting a terminal device whose corresponding reserved resource information is located in the COT from the third terminal device as the said The second terminal device determines the COT time allocation indication information.
  • embodiments of the present application provide another method for sharing channel occupancy time.
  • the method is executed by a second terminal device that shares the channel occupancy time COT.
  • the method includes: receiving the COT time of the first terminal device that initiates COT. Allocation indication information, the COT time allocation indication information is used to indicate the time allocated to the second terminal device in the COT; the second terminal device shares the COT initiated by the first terminal device.
  • the sum of the time length used for the first terminal device and the time length allocated to the second terminal device is equal to the time length in the COT. same.
  • the number of the second terminal devices is single.
  • the COT time allocation indication information is carried by any one of the following information: first-stage sidelink control information SCI, second-stage SCI information, radio resource control RRC information, and media access control control element MAC CE information.
  • the receiving the COT time allocation indication information of the first terminal device that initiates COT includes: receiving the COT time allocation indication sent by the first terminal device in the first time of the COT. Information; the first time is the starting time unit of the COT, which is the first time slot of the COT, or the first minislot of the COT.
  • the COT time allocation indication information is a bitmap; wherein each bit in the bitmap corresponds to each time unit in the COT, and the bitmap The length of is the same as the time length in the COT; the value of the bit is used to indicate that the corresponding time unit is used for the first terminal device or allocated to the second terminal device.
  • the COT time allocation indication information includes: a time length used for the first terminal device, a time length allocated to the second terminal device, and a starting time position.
  • the first terminal device and the second terminal device do not support continuous multi-time unit transmission, the length of time used for the first terminal device and the time allocated to the second terminal device
  • the length is a single time unit; or, the first terminal device and the second terminal device support continuous multi-time unit transmission, and the time length used for the first terminal device is a single or multiple time units, allocated to all
  • the time length of the second terminal device is a single or multiple time units.
  • all or part of the time allocated to the second terminal device in the COT is used to send channel information; wherein the channel information includes at least one of the following: physical sidelink control channel PSCCH information, physical sidelink shared channel PSSCH information and physical sidelink feedback channel PSFCH information.
  • all the time allocated to the second terminal device is used to send channel information
  • the method further includes: there are times when the channel information is not sent in the time allocated to the second terminal device. In the case of the first remaining time, the channel information is repeatedly sent during the first remaining time; or, there is a second remaining time in which the channel information is not sent in the time allocated to the second terminal device, And if the time allocated to the second terminal device includes the last time unit in the COT, stop sending the channel information in the second remaining time.
  • a part of the time allocated to the second terminal device is used to send channel information
  • the method further includes: there is a user who has not sent the channel information in part of the time used to send the channel information.
  • extended cyclic prefix information is sent on the third remaining time.
  • the method further includes: when there is a PSFCH information sending time of the second terminal device in the second time of the COT, sending the PSFCH in the PSFCH information sending time.
  • Information wherein the second time is the time used for the first terminal device, or is a time slot allocated to other second terminal devices except the second terminal device.
  • embodiments of the present application provide a first terminal device that has some or all of the functions of the first terminal device in implementing the method described in the first aspect.
  • the functions of the first terminal device can be It has the functions of some or all of the embodiments in this application, and may also have the function of independently implementing any one of the embodiments of this application.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the first terminal device may include a transceiver module and a processing module, and the processing module is configured to support the first terminal device to perform corresponding functions in the above method.
  • the transceiver module is used to support communication between the first terminal device and other devices.
  • the first terminal device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the first terminal device.
  • the processing module may be a processor
  • the transceiver module may be a transceiver or a communication interface
  • the storage module may be a memory
  • embodiments of the present application provide a second terminal device that has some or all of the functions of the second terminal device in the method example described in the second aspect, such as the functions of the second terminal device. It may have the functions of some or all of the embodiments in this application, or it may have the function of independently implementing any one of the embodiments of this application.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the second terminal device may include a transceiver module and a processing module, and the processing module is configured to support the second terminal device to perform corresponding functions in the above method.
  • the transceiver module is used to support communication between the second terminal device and other devices.
  • the second terminal device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the second terminal device.
  • the processing module may be a processor
  • the transceiver module may be a transceiver or a communication interface
  • the storage module may be a memory
  • inventions of the present application provide 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.
  • inventions of the present application provide 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.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.
  • inventions of the present application provide 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.
  • inventions of the present application provide 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.
  • embodiments of the present application provide 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 above-mentioned terminal equipment. When the instructions are executed, the terminal equipment is caused to execute the above-mentioned first aspect. method.
  • embodiments of the present invention provide a readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the network device is caused to perform the method described in the second aspect. .
  • the present application 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 application 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 application provides a chip system.
  • the chip system 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 application 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 application provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.
  • this application provides a computer program that, when run on a computer, causes the computer to execute 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 application.
  • Figure 2 is a schematic flowchart of a channel occupancy time sharing method provided by an embodiment of the present application
  • FIG. 3 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application.
  • Figure 4 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application.
  • Figure 6 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application.
  • Figure 7 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application.
  • Figure 8 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application.
  • Figure 9 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application.
  • Figure 10 is a schematic diagram of the first allocation of COT when the number of second terminal devices is single;
  • Figure 11 is a schematic diagram of the first allocation of COT when the number of second terminal devices is multiple;
  • Figure 12 is a schematic diagram of the second allocation of COT when the number of second terminal devices is single;
  • Figure 13 is a schematic diagram of the second allocation of COT when the number of second terminal devices is multiple;
  • Figure 14 is a schematic structural diagram of a first terminal device provided by an embodiment of the present application.
  • Figure 15 is a schematic structural diagram of a second terminal device provided by an embodiment of the present application.
  • Figure 16 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 17 is a schematic structural diagram of a chip provided by an embodiment of the present application.
  • Figure 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • 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 equipment shown in Figure 1 are only examples and do not constitute a limitation on the embodiments of the present application.
  • 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.
  • the first terminal device 101, the second terminal device 102 and the third terminal device 103 in the embodiment of the present application may each 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 this application do not limit the specific technology and specific equipment form used by the terminal equipment.
  • terminal sidelink (SL, also called direct link) communication has a huge impact on performance such as transmission bandwidth, communication rate, communication delay, reliability, and scalability.
  • the requirements are getting higher and higher, and limited licensed spectrum alone cannot meet the diverse application scenarios and needs in the future.
  • channel occupancy information COT sharing is supported in terminal sidelink-unlicensed (SL-U) communication on unlicensed spectrum, but the specific implementation of COT sharing is lacking. Therefore, the specific implementation of COT sharing needs to be determined.
  • Figure 2 is a schematic flowchart of a channel occupancy time sharing method provided by an embodiment of the present application. It should be noted that the channel occupancy time sharing method in the embodiment of the present application is executed by the first terminal device, and the first terminal device is the terminal device that initiates COT. As shown in Figure 2, the channel occupancy time sharing method may include but is not limited to the following steps.
  • Step S201 Send COT time allocation indication information to the second terminal device.
  • the COT time allocation indication information is used to indicate the time allocated in the COT for the second terminal device; the second terminal device shares the COT initiated by the first terminal device.
  • the number of second terminal devices may be single.
  • the single second terminal device may communicate with the first terminal device, or the single second terminal device may not communicate with the first terminal device.
  • the single second terminal device can communicate with the first terminal device in unicast, or the single second terminal device can communicate with the first terminal device in multicast or communicate by other means.
  • the number of second terminal devices may be multiple.
  • Each second terminal device in the plurality of second terminal devices may communicate with the first terminal device, or may not communicate with the first terminal device.
  • the sum of the time length used for the first terminal device and the time length allocated to the second terminal device is the same as the time length in the COT, thereby ensuring that the time length on the entire COT continuous transmission.
  • the COT may be divided into time units, that is, the COT may include multiple time units.
  • the time length refers to the number of time units.
  • the time unit may be a time slot, that is, one time unit represents a time slot.
  • the time unit may be a mini time slot, that is, one time unit represents one mini time slot.
  • the second terminal device is single and the COT includes N time slots.
  • the time length used for the first terminal device is N1
  • the time length allocated to the single second terminal device is N2
  • the sum of N1 and N2 is equal to N.
  • the COT includes N time slots.
  • the first terminal device is UE1
  • the plurality of second terminal devices include: UE2 and UE3.
  • the time length used for UE1 is N1
  • the time length allocated to UE2 is N2
  • the time length allocated to UE3 is N3
  • the sum of N1, N2 and N3 is equal to N.
  • the first terminal device and the second terminal device may not support continuous multi-time unit transmission for the first terminal device.
  • the length of time may be a single time unit, and the length of time allocated to the second terminal device may be a single time unit.
  • the first terminal device and the second terminal device may support continuous multi-time unit transmission, the time length used for the first terminal device is a single or multiple time units, and the time length allocated to the second terminal device is Single or multiple time units. That is to say, the time length used for the first terminal device and the time length allocated to the second terminal device may be the same or different; the time length allocated to different second terminal devices may be the same or different.
  • the COT time allocation indication information may be carried in any of the following information and sent to the second terminal device: First-stage sidelink control information (SCI), second-stage SCI information, Radio Resource Control (RRC) information and Media Access Control Control Element (MAC CE) information.
  • SCI First-stage sidelink control information
  • RRC Radio Resource Control
  • MAC CE Media Access Control Control Element
  • the COT time allocation indication information may be sent by the first terminal device to the second terminal device during the first time of COT.
  • the first time can be the starting time unit of the COT, that is, the first time unit in the COT, which is the first time slot of the COT, or the first mini slot of the COT. .
  • the COT time allocation indication information may be sent by the first terminal device to the second terminal device during the first time of COT.
  • the first time can be the starting time unit of the COT, that is, the first time unit in the COT, which is the first time slot of the COT, or the first mini slot of the COT. .
  • the first terminal device sends COT time allocation indication information to the second terminal device, and the COT time allocation indication information is used to indicate the time allocated to the second terminal device in the COT; the second The terminal device shares the COT initiated by the first terminal device, thereby enabling the second terminal device to share the COT initiated by the first terminal device according to the COT time allocation indication information, realizing COT sharing between multiple terminal devices, improving resource utilization, and meeting the requirements Communication business needs.
  • FIG. 3 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application. It should be noted that the channel occupancy time sharing method in the embodiment of the present application can be executed by the first terminal device, and the first terminal device is the terminal device that initiates COT.
  • the method for sharing the channel occupied time can be executed alone, or can be executed in combination with any embodiment in the present application or the possible implementation methods in the embodiment, or in combination with any technology in the related technologies.
  • the plan is executed together.
  • the channel occupancy time sharing method may include but is not limited to the following steps.
  • Step S301 Send COT time allocation indication information to the second terminal device.
  • the COT time allocation indication information is a bitmap; each bit in the bitmap corresponds to each time unit in the COT, and the length of the bitmap The same as the time length in COT; the value of the bit is used to indicate that the corresponding time unit is used for the first terminal device or allocated to the second terminal device.
  • the COT may be divided into time units, that is, the COT may include multiple time units.
  • the time length refers to the number of time units.
  • the time unit may be a time slot, that is, one time unit represents a time slot.
  • the time unit may be a mini time slot, that is, one time unit represents one mini time slot.
  • the number of second terminal devices may be single.
  • the single second terminal device may communicate with the first terminal device, or the single second terminal device may not communicate with the first terminal device.
  • the single second terminal device can communicate with the first terminal device in unicast, or the single second terminal device can communicate with the first terminal device in multicast or communicate by other means.
  • the value of each bit in the bitmap may be 0 or 1.
  • the value of the bitmap when the value of the bit is 0, it is used to indicate that the corresponding time unit is used for the first terminal device; when the value of the bit is 1, it is used to indicate the corresponding time.
  • the unit is assigned to the second terminal device.
  • the unit is for the first terminal device.
  • the COT includes 6 time units
  • the bitmap includes 6 bits, for example, 111000, which are used to indicate that the first 3 time units in the COT are used for the first terminal device, and the last 3 time units in the COT are used.
  • the unit is assigned to the second terminal device.
  • the first terminal device sends COT time allocation indication information to the second terminal equipment.
  • the COT time allocation indication information is a bit bitmap; each bit in the bit bitmap is consistent with the COT. Each time unit corresponds to one-to-one, and the length of the bitmap is the same as the time length in the COT; the value of the bit is used to indicate that the corresponding time unit is used for the first terminal device or allocated to the second terminal device, so that the second terminal device
  • the terminal device can share the COT initiated by the first terminal device according to the COT time allocation instruction information, thereby realizing COT sharing between multiple terminal devices, improving resource utilization, and meeting communication service requirements.
  • FIG. 4 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application. It should be noted that the channel occupancy time sharing method in the embodiment of the present application can be executed by the first terminal device, and the first terminal device is the terminal device that initiates COT.
  • the method for sharing the channel occupied time can be executed alone, or can be executed in combination with any embodiment in the present application or the possible implementation methods in the embodiment, or in combination with any technology in the related technologies.
  • the plan is executed together.
  • the channel occupancy time sharing method may include but is not limited to the following steps.
  • Step S401 Send COT time allocation indication information to the second terminal device.
  • the COT time allocation indication information includes: a time length used for the first terminal device, a time length allocated to the second terminal device, and a starting time position.
  • the sum of the time length used for the first terminal device and the time length allocated to the second terminal device is the same as the time length in the COT, thereby ensuring that the time length on the entire COT continuous transmission.
  • the COT can be divided into time units, that is to say, the COT can include multiple time units.
  • the time length refers to the number of time units.
  • the time unit may be a time slot, that is, one time unit represents a time slot.
  • the time unit may be a mini time slot, that is, one time unit represents one mini time slot. That is, one unit of time represents one bit.
  • the starting time position used for the first terminal device is the position of the starting time unit in the COT, and no indication is required.
  • the starting time position assigned to the second terminal device can be represented by the serial number of the time unit in the COT, etc. In other embodiments, the starting time position assigned to the second terminal device may be expressed by the offset of the time unit in the COT relative to the starting time unit in the COT.
  • the number of second terminal devices may be single.
  • the single second terminal device may communicate with the first terminal device, or the single second terminal device may not communicate with the first terminal device.
  • the number of second terminal devices may be multiple. Each second terminal device in the plurality of second terminal devices may communicate with the first terminal device, or may not communicate with the first terminal device.
  • the first terminal device sends COT time allocation indication information to the second terminal device.
  • the COT time allocation indication information includes: the length of time used for the first terminal device, the time allocated to the second terminal device, and the time length allocated to the second terminal device.
  • the time length and starting time position of the terminal device, where in the COT time allocation indication information, the sum of the time length used for the first terminal device and the time length allocated to the second terminal device is the same as the time length in the COT;
  • the second terminal device can share the COT initiated by the first terminal device according to the COT time allocation indication information, realize COT sharing between multiple terminal devices, improve resource utilization, and meet communication service requirements.
  • FIG. 5 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application. It should be noted that the channel occupancy time sharing method in the embodiment of the present application can be executed by the first terminal device, and the first terminal device is the terminal device that initiates COT.
  • the method for sharing the channel occupied time can be executed alone, or can be executed in combination with any embodiment in the present application or the possible implementation methods in the embodiment, or in combination with any technology in the related technologies.
  • the plan is executed together.
  • the channel occupancy time sharing method may include but is not limited to the following steps.
  • Step S501 Monitor the reserved resource information of the third terminal device.
  • the third terminal device may be any terminal device except the first terminal device.
  • the number of third terminal devices may be multiple.
  • the third terminal device may communicate with the first terminal device, or may not communicate with the first terminal device.
  • the first terminal device can monitor the third terminal device and obtain the first-stage SCI information of the third terminal device; decode the first-stage SCI information to obtain the reserved resource information of the third terminal device. and logo.
  • Step S502 Select a terminal device whose corresponding reserved resource information is located in the COT from the third terminal device as the second terminal device, and determine the COT time allocation indication information.
  • the first terminal device can determine the time that needs to be allocated to the second terminal device in the COT based on the reserved resource information of the second terminal device; and then determine the COT time allocation indication based on the time that needs to be allocated to the second terminal device in the COT. information.
  • Step S503 Send COT time allocation indication information to the second terminal device.
  • the COT time allocation indication information is used to indicate the time allocated in the COT for the second terminal device; the second terminal device shares the COT initiated by the first terminal device.
  • step S503 For detailed description of step S503, reference may be made to the corresponding descriptions of this step in the above embodiments, and will not be described in detail here.
  • the first terminal device monitors the reserved resource information of the third terminal device; and selects the terminal device whose corresponding reserved resource information is located in the COT from the third terminal device as the second terminal device.
  • the terminal device determines the COT time allocation indication information; sends the COT time allocation indication information to the second terminal device, and the COT time allocation indication information is used to indicate the time allocated to the second terminal device in the COT; the second terminal device shares the first terminal
  • the COT initiated by the device enables the second terminal device to share the COT initiated by the first terminal device according to the COT time allocation indication information, realizing COT sharing between multiple terminal devices, improving resource utilization and meeting communication service needs.
  • FIG. 6 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application.
  • the channel occupancy time sharing method in the embodiment of the present application can be executed by a second terminal device, and the second terminal device is a terminal device that shares the channel occupancy time COT.
  • the channel occupancy time sharing method may include but is not limited to the following steps.
  • Step S601 Receive COT time allocation indication information from the first terminal device that initiates COT.
  • the COT time allocation indication information is used to indicate the time allocated in the COT for the second terminal device; the second terminal device shares the COT initiated by the first terminal device.
  • the number of second terminal devices may be single.
  • the single second terminal device may communicate with the first terminal device, or the single second terminal device may not communicate with the first terminal device.
  • the single second terminal device can communicate with the first terminal device in unicast, or the single second terminal device can communicate with the first terminal device in multicast or communicate by other means.
  • the number of second terminal devices may be multiple.
  • Each second terminal device in the plurality of second terminal devices may communicate with the first terminal device, or may not communicate with the first terminal device.
  • the sum of the time length used for the first terminal device and the time length allocated to the second terminal device is the same as the time length in the COT, thereby ensuring that the time length on the entire COT continuous transmission.
  • the COT may be divided into time units, that is, the COT may include multiple time units.
  • the time length refers to the number of time units.
  • the time unit may be a time slot, that is, one time unit represents a time slot.
  • the time unit may be a mini time slot, that is, one time unit represents one mini time slot. That is, one unit of time represents one bit.
  • the second terminal device is single and the COT includes N time slots.
  • the time length used for the first terminal device is N1
  • the time length allocated to the single second terminal device is N2
  • the sum of N1 and N2 is equal to N.
  • the COT includes N time slots.
  • the first terminal device is UE1
  • the plurality of second terminal devices include: UE2 and UE3.
  • the time length used for UE1 is N1
  • the time length allocated to UE2 is N2
  • the time length allocated to UE3 is N3
  • the sum of N1, N2 and N3 is equal to N.
  • the first terminal device and the second terminal device may not support continuous multi-time unit transmission for the first terminal device.
  • the length of time may be a single time unit, and the length of time allocated to the second terminal device may be a single time unit.
  • the first terminal device and the second terminal device may support continuous multi-time unit transmission, the time length used for the first terminal device is a single or multiple time units, and the time length allocated to the second terminal device is Single or multiple time units. That is to say, the time length used for the first terminal device and the time length allocated to the second terminal device may be the same or different; the time length allocated to different second terminal devices may be the same or different.
  • the COT time allocation indication information may be carried in any of the following information and sent to the second terminal device: First-stage SCI information, second-stage SCI information, RRC information and MAC CE information.
  • the process of the second terminal device performing step S601 may be, for example, receiving the COT time allocation indication information sent by the first terminal device in the first time of the COT; the first time is the starting time unit of the COT, It is the first time slot of the COT, or the first mini slot of the COT.
  • the process of the second terminal device performing step S601 may be, for example, receiving the COT time sent by the first terminal device in the first time of COT.
  • Allocation instruction information the first time is the starting time unit of the COT, which is the first time slot of the COT, or the first mini slot of the COT.
  • the second terminal device receives COT time allocation indication information from the first terminal equipment that initiates COT.
  • the COT time allocation indication information is used to indicate the time allocated to the second terminal device in the COT. ;
  • the second terminal device shares the COT initiated by the first terminal device, so that the second terminal device can share the COT initiated by the first terminal device according to the COT time allocation indication information, realizing COT sharing between multiple terminal devices and improving resource utilization. rate to meet communication business needs.
  • FIG. 7 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application. It should be noted that the channel occupancy time sharing method in the embodiment of the present application can be executed by a second terminal device, and the second terminal device is a terminal device that shares the channel occupancy time COT.
  • the method for sharing the channel occupied time can be executed alone, or can be executed in combination with any embodiment in the present application or the possible implementation methods in the embodiment, or in combination with any technology in the related technologies.
  • the plan is implemented together.
  • the channel occupancy time sharing method may include but is not limited to the following steps.
  • Step S701 Receive COT time allocation indication information from the first terminal device that initiates COT.
  • the COT time allocation indication information is a bitmap; each bit in the bitmap corresponds to each time unit in the COT, and the bits
  • the length of the graph is the same as the time length in the COT; the value of the bit is used to indicate that the corresponding time unit is used for the first terminal device or allocated to the second terminal device.
  • the COT may be divided into time units, that is, the COT may include multiple time units.
  • the time length refers to the number of time units.
  • the time unit may be a time slot, that is, one time unit represents a time slot.
  • the time unit may be a mini time slot, that is, one time unit represents one mini time slot. That is, one unit of time represents one bit.
  • the number of second terminal devices may be single.
  • the single second terminal device may communicate with the first terminal device, or the single second terminal device may not communicate with the first terminal device.
  • the single second terminal device can communicate with the first terminal device in unicast, or the single second terminal device can communicate with the first terminal device in multicast or communicate by other means.
  • the value of each bit in the bitmap may be 0 or 1.
  • the value of the bitmap when the value of the bit is 0, it is used to indicate that the corresponding time unit is used for the first terminal device; when the value of the bit is 1, it is used to indicate the corresponding time.
  • the unit is assigned to the second terminal device.
  • the unit is for the first terminal device.
  • the COT includes 6 time units
  • the bitmap includes 6 bits, for example, 111000, which are used to indicate that the first 3 time units in the COT are used for the first terminal device, and the last 3 time units in the COT are used.
  • the unit is assigned to the second terminal device.
  • the second terminal device receives COT time allocation indication information from the first terminal equipment that initiates COT.
  • the COT time allocation indication information is a bit bitmap; each bit in the bit bitmap Corresponding to each time unit in the COT, the length of the bitmap is the same as the time length in the COT; the value of the bit is used to indicate that the corresponding time unit is used for the first terminal device or allocated to the second terminal device, so that This enables the second terminal device to share the COT initiated by the first terminal device according to the COT time allocation indication information, thereby realizing COT sharing between multiple terminal devices, improving resource utilization, and meeting communication service requirements.
  • FIG. 8 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application. It should be noted that the channel occupancy time sharing method in the embodiment of the present application can be executed by a second terminal device, and the second terminal device is a terminal device that shares the channel occupancy time COT.
  • the method for sharing the channel occupied time can be executed alone, or can be executed in combination with any embodiment in the present application or the possible implementation methods in the embodiment, or in combination with any technology in the related technologies.
  • the plan is implemented together.
  • the channel occupancy time sharing method may include but is not limited to the following steps.
  • Step S801 Receive COT time allocation indication information from the first terminal device that initiates COT.
  • the COT time allocation indication information includes: a time length used for the first terminal device, a time length allocated to the second terminal device, and a starting time position.
  • the sum of the time length used for the first terminal device and the time length allocated to the second terminal device is the same as the time length in the COT, thereby ensuring that the time length on the entire COT continuous transmission.
  • the COT can be divided into time units, that is to say, the COT can include multiple time units.
  • the time length refers to the number of time units.
  • the time unit may be a time slot, that is, one time unit represents a time slot.
  • the time unit may be a mini time slot, that is, one time unit represents one mini time slot. That is, one unit of time represents one bit.
  • the starting time position used for the first terminal device is the position of the starting time unit in the COT, and no indication is required.
  • the starting time position assigned to the second terminal device can be represented by the serial number of the time unit in the COT, etc. In other embodiments, the starting time position assigned to the second terminal device may be expressed by the offset of the time unit in the COT relative to the starting time unit in the COT.
  • the number of second terminal devices may be single.
  • the single second terminal device may communicate with the first terminal device, or the single second terminal device may not communicate with the first terminal device.
  • the number of second terminal devices may be multiple. Each second terminal device in the plurality of second terminal devices may communicate with the first terminal device, or may not communicate with the first terminal device.
  • the second terminal device receives the COT time allocation indication information of the first terminal device that initiates COT.
  • the COT time allocation indication information includes: the time length and allocation for the first terminal device. The time length and starting time position given to the second terminal device, where the sum of the time length used for the first terminal device and the time length allocated to the second terminal device in the COT time allocation indication information is the same as the time in the COT The length is the same; thereby enabling the second terminal device to share the COT initiated by the first terminal device according to the COT time allocation indication information, realizing COT sharing between multiple terminal devices, improving resource utilization, and meeting communication service requirements.
  • FIG. 9 is a schematic flowchart of another channel occupancy time sharing method provided by an embodiment of the present application. It should be noted that the channel occupancy time sharing method in the embodiment of the present application can be executed by a second terminal device, and the second terminal device is a terminal device that shares the channel occupancy time COT.
  • the method for sharing the channel occupied time can be executed alone, or can be executed in combination with any embodiment in the present application or the possible implementation methods in the embodiment, or in combination with any technology in the related technologies.
  • the plan is implemented together.
  • the channel occupancy time sharing method may include but is not limited to the following steps.
  • Step S901 Receive COT time allocation indication information from the first terminal device that initiates COT.
  • the COT time allocation indication information is used to indicate the time allocated in the COT for the second terminal device; the second terminal device shares the COT initiated by the first terminal device.
  • step S901 For a detailed description of step S901, please refer to the corresponding description of this step in the above embodiments, and will not be described in detail here.
  • Step S902 When all the time allocated to the second terminal device is used to send channel information, and there is a first remaining time in which channel information is not sent in the time allocated to the second terminal device, repeat the first remaining time. Send channel information.
  • all the time allocated to the second terminal device is used to send channel information, which may mean that all the time allocated to the second terminal device is used to send channel information and is not used to send other information.
  • the channel information may include at least one of the following: Physical Sidelink Control Channel (PSCCH) information, Physical Sidelink Shared Channel (PSSCH) information, and Physical Sidelink Feedback Channel (Physical Sidelink Feedback Channel, PSFCH) information.
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • PSFCH Physical Sidelink Feedback Channel
  • the first remaining time for not sending channel information in the time allocated to the second terminal equipment means that the length of time allocated to the second terminal equipment is greater than the length of time for the second terminal equipment to send channel information.
  • the length of time allocated to the second terminal device is equal to the length of time for the second terminal device to send channel information, there is no first remaining time for which channel information is not sent, that is, there is no remaining time.
  • the repeatedly transmitted channel information may be, for example, PSCCH information and/or PSSCH information.
  • FIG. 10 it is a schematic diagram of the first allocation of COT when the number of second terminal devices is single.
  • the number of time units in COT that is, slots, is 6, which are slot1, slot2, slot3, slot4, slot5, and slot6 in order.
  • slot1 to slot3 are used for the first terminal device;
  • slot4 to slot6 are allocated to the second terminal device.
  • the second terminal device can use slots 4 to 5 to complete sending the channel information, and then the second terminal device can repeatedly send the channel information in slot 6.
  • the first terminal device may also send the PSFCH information in slot 6.
  • FIG. 11 it is a first allocation schematic diagram of COT when the number of second terminal devices is multiple.
  • the number of time units in COT that is, slots, is 6, which are slot1, slot2, slot3, slot4, slot5, and slot6 in order.
  • slot1 to slot2 are used for the first terminal device (for example, UE1);
  • slot3 to slot4 are allocated to a second terminal device (for example, UE2);
  • slot5 to slot6 are allocated to another second terminal device (for example, UE3).
  • UE3 can use slot 5 to complete sending channel information, and UE3 can repeatedly send channel information in slot 6.
  • PSFCH information sending time of other terminal devices exists in slot 6
  • other terminal devices can also send PSFCH information in slot 6.
  • Other terminal devices may be UE1 or UE2, for example.
  • Step S903 All the time allocated to the second terminal device is used to send channel information, and there is a second remaining time in which channel information is not sent in the time allocated to the second terminal device, and in the time allocated to the second terminal device, In the case where the last time unit in the COT is included, the transmission of channel information is stopped during the second remaining time.
  • FIG. 12 it is a schematic diagram of the second allocation of COT when the number of second terminal devices is single.
  • the number of time units in COT that is, slots, is 6, which are slot1, slot2, slot3, slot4, slot5, and slot6 in order.
  • slot1 to slot3 are used for the first terminal device; slot4 to slot6 are allocated to the second terminal device.
  • the second terminal device can use slots 4 to slot 5 to complete the transmission of the channel information.
  • slot 6 is the last time unit in the COT, that is, the last time slot
  • the The second terminal device can stop sending channel information in slot 6.
  • Step S904 When part of the time allocated to the second terminal device is used to send channel information, and there is a third remaining time in which channel information is not sent in part of the time used to send channel information, send in the third remaining time.
  • Extended cyclic prefix information When part of the time allocated to the second terminal device is used to send channel information, and there is a third remaining time in which channel information is not sent in part of the time used to send channel information, send in the third remaining time.
  • Step S905 If the PSFCH information sending time of the second terminal device exists in the second time of COT, send the PSFCH information in the PSFCH information sending time; wherein the second time is the time for the first terminal device, or , is the time allocated to other second terminal devices except the second terminal device.
  • FIG. 13 it is a second allocation schematic diagram of COT when the number of second terminal devices is multiple.
  • the number of time units in COT that is, slots, is 6, which are slot1, slot2, slot3, slot4, slot5, and slot6 in order.
  • slot1 to slot2 are used for the first terminal device (for example, UE1);
  • slot3 to slot4 are allocated to a second terminal device (for example, UE2);
  • slot5 to slot6 are allocated to another second terminal device (for example, UE3).
  • the PSFCH information sending time of UE2 exists in slot 6, then UE2 can reuse the PSFCH information sending time in slot 6 for sending PSFCH information.
  • each of the above-mentioned steps S902 to S905 is a separate step, that is to say, only one or multiple steps may be executed. There is no sequence or correlation between the steps and they can be executed independently.
  • the second terminal device receives COT time allocation indication information from the first terminal equipment that initiates COT.
  • the COT time allocation indication information is used to indicate the time allocated to the second terminal device in the COT. ;
  • the second terminal device shares the COT initiated by the first terminal device; when there is remaining time in the allocated time, it is selected to repeatedly send channel information, stop sending channel information, or send extended cyclic prefix information according to the situation; during the PSFCH information sending time
  • the time is multiplexed to send PSFCH information, thereby realizing COT sharing between multiple terminal equipment, improving resource utilization, and meeting communication service 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.
  • Figure 14 is a schematic structural diagram of a first terminal device 140 provided by an embodiment of the present application.
  • the first terminal device is the terminal device that initiates COT.
  • the first terminal device 140 shown in Figure 14 includes a transceiver unit 1401, which is used to send COT time allocation indication information to the second terminal device.
  • the COT time allocation indication information is used to indicate the COT allocated to the second terminal device. time; the second terminal device shares the COT initiated by the first terminal device.
  • the sum of the time length used for the first terminal device and the time length allocated to the second terminal device is equal to the time length in the COT. same.
  • the number of the second terminal devices is single.
  • the COT time allocation indication information is carried by any one of the following information: first-stage sidelink control information SCI, second-stage SCI information, radio resource control RRC information, and media access control control element MAC CE information.
  • the transceiver unit 1401 is specifically configured to send the COT time allocation indication information to the second terminal device in the first time of the COT; the first time is the COT
  • the starting time unit is the first time slot of the COT, or the first mini slot of the COT.
  • the COT time allocation indication information is a bitmap; each bit in the bitmap corresponds to each time unit in the COT, and the length of the bitmap It is the same as the time length in the COT; the value of the bit is used to indicate that the corresponding time unit is used for the first terminal device or allocated to the second terminal device.
  • the COT time allocation indication information includes: a time length used for the first terminal device, a time length allocated to the second terminal device, and a starting time position.
  • the first terminal device and the second terminal device do not support continuous multi-time unit transmission, the length of time used for the first terminal device and the time allocated to the second terminal device
  • the length is a single time unit; or, the first terminal device and the second terminal device support continuous multi-time unit transmission, and the time length used for the first terminal device is a single or multiple time units, allocated to all
  • the time length of the second terminal device is a single or multiple time units.
  • the first terminal device further includes: a processing unit 1402, configured to monitor the reserved resource information of the third terminal device; and select the corresponding reserved resource information from the third terminal device to be located in the COT.
  • the terminal device inside serves as the second terminal device, and determines the COT time allocation indication information.
  • FIG 15 is a schematic structural diagram of a second terminal device 150 provided by an embodiment of the present application.
  • the second terminal device is a terminal device that shares the channel occupancy time COT.
  • the second terminal device 150 includes: a transceiver unit 1501 that receives COT time allocation indication information from the first terminal device that initiates COT.
  • the COT time allocation indication information is used to indicate The time allocated to the second terminal device in the COT; the second terminal device shares the COT initiated by the first terminal device.
  • the sum of the time length used for the first terminal device and the time length allocated to the second terminal device is equal to the time length in the COT. same.
  • the number of the second terminal devices is single.
  • the COT time allocation indication information is carried by any one of the following information: first-stage sidelink control information SCI, second-stage SCI information, radio resource control RRC information, and media access control control element MAC CE information.
  • the transceiver unit 1501 is specifically configured to receive the COT time allocation indication information sent by the first terminal device in the first time of the COT; the first time is the The starting time unit of a COT is the first time slot of the COT, or the first mini slot of the COT.
  • the COT time allocation indication information is a bitmap; wherein each bit in the bitmap corresponds to each time unit in the COT, and the bitmap The length of is the same as the time length in the COT; the value of the bit is used to indicate that the corresponding time unit is used for the first terminal device or allocated to the second terminal device.
  • the COT time allocation indication information includes: a time length used for the first terminal device, a time length allocated to the second terminal device, and a starting time position.
  • the first terminal device and the second terminal device do not support continuous multi-time unit transmission, the length of time used for the first terminal device and the time allocated to the second terminal device
  • the length is a single time unit; or, the first terminal device and the second terminal device support continuous multi-time unit transmission, and the time length used for the first terminal device is a single or multiple time units, allocated to all
  • the time length of the second terminal device is a single or multiple time units.
  • all or part of the time allocated to the second terminal device in the COT is used to send channel information; wherein the channel information includes at least one of the following: physical sidelink control channel PSCCH information, physical sidelink shared channel PSSCH information and physical sidelink feedback channel PSFCH information.
  • all the time allocated to the second terminal device is used to send channel information, and the transceiver unit 1501 is also used to send the channel information if the time allocated to the second terminal device is not sent.
  • the channel information is repeatedly sent during the first remaining time; or, there is a second terminal device that does not send the channel information in the time allocated to the second terminal device.
  • the remaining time, and the time allocated to the second terminal device includes the last time unit in the COT, stops sending the channel information during the second remaining time.
  • part of the time allocated to the second terminal device is used to send channel information, and the transceiver unit 1501 is also used to detect that the part of the time allocated to the second terminal device is not sent.
  • extended cyclic prefix information is sent on the third remaining time.
  • the transceiver unit 1501 is further configured to send the PSFCH information during the PSFCH information transmission time when the PSFCH information transmission time of the second terminal device exists in the second time of the COT.
  • the PSFCH information wherein the second time is the time used for the first terminal equipment, or is a time slot allocated to other second terminal equipment except the second terminal equipment.
  • FIG 16 is a schematic structural diagram of a communication device 160 provided by an embodiment of the present application.
  • the communication device 160 may be a terminal device (such as the first terminal device or the second terminal device in the foregoing method embodiment), or may be a chip, chip system, or processor that supports the terminal device to implement the above method.
  • 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 160 may include one or more processors 1601.
  • the processor 1601 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 160 may also include one or more memories 1602, on which a computer program 1604 may be stored.
  • the processor 1601 executes the computer program 1604, so that the communication device 160 performs the steps described in the above method embodiments. method.
  • the memory 1602 may also store data.
  • the communication device 160 and the memory 1602 can be provided separately or integrated together.
  • the communication device 160 may also include a transceiver 1605 and an antenna 1606.
  • the transceiver 1605 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 1605 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 160 may also include one or more interface circuits 1607.
  • the interface circuit 1607 is used to receive code instructions and transmit them to the processor 1601 .
  • the processor 1601 executes the code instructions to cause the communication device 160 to perform the method described in the above method embodiment.
  • the communication device 160 is a first terminal device: the transceiver 1605 is used to perform step S201 in Figure 2; step S301 in Figure 3; step S401 in Figure 4; and step S503 in Figure 5.
  • the processor 1601 is used to execute step S501 and step S502 in FIG. 5 .
  • the communication device 160 is a second terminal device: the transceiver 1605 is used to perform step S601 in Figure 6; step S701 in Figure 7; step S801 in Figure 8; steps S901, S902, S903, S904 and S905 in Figure 9 .
  • the processor 1601 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 1601 may store a computer program 1604, and the computer program 1604 runs on the processor 1601, causing the communication device 160 to perform the method described in the above method embodiment.
  • the computer program 1604 may be solidified in the processor 1601, in which case the processor 1601 may be implemented by hardware.
  • the communication device 160 may include a circuit, which may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
  • the processor and transceiver described in this application can be implemented in 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 (such as the first terminal device in the foregoing method embodiment), but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may be Not limited by Figure 16.
  • 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 schematic structural diagram of the chip shown in FIG. 17 refer to the schematic structural diagram of the chip shown in FIG. 17 .
  • the chip shown in Figure 17 includes a processor 1701 and an interface 1702.
  • the number of processors 1701 may be one or more, and the number of interfaces 1702 may be multiple.
  • the chip also includes a memory 1703, which is used to store necessary computer programs and data.
  • An embodiment of the present application also provides a communication system, which system includes the first terminal device in the aforementioned embodiment of FIG. 14, or the system includes the second terminal device in the aforementioned embodiment of FIG. 15.
  • This application also provides a 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.
  • This application 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 the embodiments of the present application 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.
  • 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 this application can also be described as one or more, and the plurality can be two, three, four or more, which is not limited by this application.
  • 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.
  • the corresponding relationships shown in each table in this application can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which are not limited by this application.
  • 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 application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

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Abstract

本申请实施例公开了一种信道占用时间的共享方法及其装置，应用于通信技术领域，该方法包括: 第一终端设备通过向第二终端设备发送COT时间分配指示信息， COT时间分配指示信息用于指示COT中为第二终端设备分配的时间；第二终端设备共享第一终端设备发起的COT（S201），从而使得第二终端设备能够根据COT时间分配指示信息共享第一终端设备发起COT，实现多个终端设备之间的COT共享，提高资源利用率，满足通信业务需求。

Description

一种信道占用时间的共享方法及其装置 技术领域
本申请涉及通信技术领域，尤其涉及一种信道占用时间(channel occupancy time，COT)的共享方法及其装置。
背景技术
随着新的通信业务及应用需求的不断产生，终端侧行(Sidelink，SL，也叫直连链路)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。目前，在非授权频谱上的终端侧行通信(sidelink-unlicensed，SL-U)上支持COT共享，但缺少COT共享的具体实现。
发明内容
本申请实施例提供一种信道占用时间的共享方法及其装置，可以应用于通信技术领域，以实现第一终端设备通过向第二终端设备发送COT时间分配指示信息，COT时间分配指示信息用于指示COT中为第二终端设备分配的时间；第二终端设备共享第一终端设备发起的COT，实现多个终端设备之间的COT共享，提高资源利用率，满足通信业务需求。
第一方面，本申请实施例提供一种信道占用时间的共享方法，所述方法由发起信道占用时间COT的第一终端设备执行，该方法包括：向第二终端设备发送COT时间分配指示信息，所述COT时间分配指示信息用于指示所述COT中为所述第二终端设备分配的时间；所述第二终端设备共享所述第一终端设备发起的所述COT。
在一种实现方式中，所述COT时间分配指示信息中，用于所述第一终端设备的时间长度和分配给所述第二终端设备的时间长度的总和，与所述COT中的时间长度相同。
在一种实现方式中，所述第二终端设备的数量为单个。
在一种实现方式中，所述COT时间分配指示信息由以下任意一种信息承载：第一阶段侧行控制信息SCI、第二阶段SCI信息、无线资源控制RRC信息和媒体访问控制控制元素MAC CE信息。
在一种实现方式中，所述第二终端设备的数量为多个。
在一种实现方式中，所述向第二终端设备发送COT时间分配指示信息，包括：在所述COT的第一时间中向所述第二终端设备发送所述COT时间分配指示信息；所述第一时间为所述COT的起始时间单元，即为该COT的第一个时隙，或者是该COT的第一个minislot(微时隙)。
在一种实现方式中，所述COT时间分配指示信息为比特位图；所述比特位图中的每一位与所述COT中的每一个时间单元一一对应，所述比特位图的长度与所述COT中的时间长度相同；所述位的数值，用于指示对应时间单元用于所述第一终端设备或者分配给所述第二终端设备。
在一种实现方式中，所述COT时间分配指示信息包括：用于所述第一终端设备的时间长度、分配给所述第二终端设备的时间长度以及起始时间位置。
在一种实现方式中，所述第一终端设备和所述第二终端设备不支持连续多时间单元传输，用于所述第一终端设备的时间长度以及分配给所述第二终端设备的时间长度为单个时间单元；或者，所述第一终端设备和所述第二终端设备支持连续多时间单元传输，用于所述第一终端设备的时间长度为单个或者多个时间单元，分配给所述第二终端设备的时间长度为单个或者多个时间单元。
在一种实现方式中，所述方法还包括：监听第三终端设备的预留资源信息；从所述第三终端设备中选择对应的预留资源信息位于所述COT内的终端设备作为所述第二终端设备，并确定所述COT时间分配指示信息。
第二方面，本申请实施例提供另一种信道占用时间的共享方法，所述方法由共享信道占用时间COT的第二终端设备执行，该方法包括：接收发起COT的第一终端设备的COT时间分配指示信息，所述COT时间分配指示信息用于指示所述COT中为所述第二终端设备分配的时间；所述第二终端设备共享所述第一终端设备发起的所述COT。
在一种实现方式中，所述COT时间分配指示信息中，用于所述第一终端设备的时间长度和分配给所述第二终端设备的时间长度的总和，与所述COT中的时间长度相同。
在一种实现方式中，所述第二终端设备的数量为单个。
在一种实现方式中，所述COT时间分配指示信息由以下任意一种信息承载：第一阶段侧行控制信息 SCI、第二阶段SCI信息、无线资源控制RRC信息和媒体访问控制控制元素MAC CE信息。
在一种实现方式中，所述第二终端设备的数量为多个。
在一种实现方式中，所述接收发起COT的第一终端设备的COT时间分配指示信息，包括：接收所述第一终端设备在所述COT的第一时间中发送的所述COT时间分配指示信息；所述第一时间为所述COT的起始时间单元，即为该COT的第一个时隙，或者是该COT的第一个minislot(微时隙)。
在一种实现方式中，所述COT时间分配指示信息为比特位图；其中，所述比特位图中的每一位与所述COT中的每一个时间单元一一对应，所述比特位图的长度与所述COT中的时间长度相同；所述位的数值，用于指示对应时间单元用于所述第一终端设备或者分配给所述第二终端设备。
在一种实现方式中，所述COT时间分配指示信息包括：用于所述第一终端设备的时间长度、分配给所述第二终端设备的时间长度以及起始时间位置。
在一种实现方式中，所述第一终端设备和所述第二终端设备不支持连续多时间单元传输，用于所述第一终端设备的时间长度以及分配给所述第二终端设备的时间长度为单个时间单元；或者，所述第一终端设备和所述第二终端设备支持连续多时间单元传输，用于所述第一终端设备的时间长度为单个或者多个时间单元，分配给所述第二终端设备的时间长度为单个或者多个时间单元。
在一种实现方式中，所述COT中分配给所述第二终端设备的时间，全部或者部分用于发送信道信息；其中，所述信道信息包括以下中的至少一种：物理侧行控制信道PSCCH信息、物理侧行共享信道PSSCH信息和物理侧行反馈信道PSFCH信息。
在一种实现方式中，分配给所述第二终端设备的时间全部用于发送信道信息，所述方法还包括：在分配给所述第二终端设备的时间中存在未发送所述信道信息的第一剩余时间的情况下，在所述第一剩余时间上重复发送所述信道信息；或者，在分配给所述第二终端设备的时间中存在未发送所述信道信息的第二剩余时间，且分配给所述第二终端设备的时间中包含所述COT中的最后一个时间单元的情况下，在所述第二剩余时间上停止发送所述信道信息。
在一种实现方式中，分配给所述第二终端设备的时间部分用于发送信道信息，所述方法还包括：在用于发送所述信道信息的部分时间中存在未发送所述信道信息的第三剩余时间的情况下，在所述第三剩余时间上发送扩展循环前缀信息。
在一种实现方式中，所述方法还包括：在所述COT的第二时间中存在所述第二终端设备的PSFCH信息发送时间的情况下，在所述PSFCH信息发送时间中发送所述PSFCH信息；其中，所述第二时间为用于所述第一终端设备的时间，或者，为分配给除所述第二终端设备之外的其他第二终端设备的时隙。
第三方面，本申请实施例提供一种第一终端设备，该第一终端设备具有实现上述第一方面所述的方法中第一终端设备的部分或全部功能，比如第一终端设备的功能可具备本申请中的部分或全部实施例中的功能，也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种实现方式中，该第一终端设备的结构中可包括收发模块和处理模块，所述处理模块被配置为支持第一终端设备执行上述方法中相应的功能。所述收发模块用于支持第一终端设备与其他设备之间的通信。所述第一终端设备还可以包括存储模块，所述存储模块用于与收发模块和处理模块耦合，其保存第一终端设备必要的计算机程序和数据。
作为示例，处理模块可以为处理器，收发模块可以为收发器或通信接口，存储模块可以为存储器。
第四方面，本申请实施例提供一种第二终端设备，该第二终端设备具有实现上述第二方面所述的方法示例中第二终端设备的部分或全部功能，比如第二终端设备的功能可具备本申请中的部分或全部实施例中的功能，也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种实现方式中，该第二终端设备的结构中可包括收发模块和处理模块，该处理模块被配置为支持第二终端设备执行上述方法中相应的功能。收发模块用于支持第二终端设备与其他设备之间的通信。所述第二终端设备还可以包括存储模块，所述存储模块用于与收发模块和处理模块耦合，其保存第二终端设备必要的计算机程序和数据。
作为示例，处理模块可以为处理器，收发模块可以为收发器或通信接口，存储模块可以为存储器。
第五方面，本申请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，本申请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，本申请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；所述处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第一方面所述的方法。
第八方面，本申请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；所述处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第二方面所述的方法。
第九方面，本申请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，本申请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，本申请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，用于储存为上述终端设备所用的指令，当所述指令被执行时，使所述终端设备执行上述第一方面所述的方法。
第十三方面，本发明实施例提供一种可读存储介质，用于储存为上述网络设备所用的指令，当所述指令被执行时，使所述网络设备执行上述第二方面所述的方法。
第十四方面，本申请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，本申请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，本申请提供一种芯片系统，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，本申请提供一种芯片系统，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，本申请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，本申请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申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1是本申请实施例提供的一种通信系统的架构示意图；
图2是本申请实施例提供的一种信道占用时间的共享方法的流程示意图；
图3是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图；
图4是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图；
图5是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图；
图6是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图；
图7是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图；
图8是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图；
图9是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图；
图10是第二终端设备的数量为单个的情况下COT的第一分配示意图；
图11是第二终端设备的数量为多个的情况下COT的第一分配示意图；
图12是第二终端设备的数量为单个的情况下COT的第二分配示意图；
图13是第二终端设备的数量为多个的情况下COT的第二分配示意图；
图14是本申请实施例提供的一种第一终端设备的结构示意图；
图15是本申请实施例提供的一种第二终端设备的结构示意图；
图16是本申请实施例提供的一种通信装置的结构示意图；
图17是本申请实施例提供的一种芯片的结构示意图。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。其中，在本申请的描述中，除非另有说明，“/”表示或的意思，例如，A/B可以表示A或B；本文中的“和/或”仅仅是一种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。
为了更好的理解本申请实施例公开的一种信道占用时间的共享方法，下面首先对本申请实施例适用的通信系统进行描述。
请参见图1，图1为本申请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申请实施例的限定。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。
本申请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。本申请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，本申请实施例描述的通信系统是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请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，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
其中，随着新的通信业务及应用需求的不断产生，终端侧行(Sidelink，SL，也叫直连链路)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。目前，在非授权频谱上的终端侧行通信(sidelink-unlicensed，SL-U)上支持信道占用信息COT共享，但缺少COT共享的具体实现。因此，需要确定COT共享的具体实现。
下面结合附图对本申请所提供的信道占用时间的共享方法及其装置进行详细地介绍。
请参见图2，图2是本申请实施例提供的一种信道占用时间的共享方法的流程示意图。需要说明的是，本申请实施例的信道占用时间的共享方法由第一终端设备执行，第一终端设备为发起COT的终端设备。如图2所示，该信道占用时间的共享方法可以包括但不限于如下步骤。
步骤S201，向第二终端设备发送COT时间分配指示信息，COT时间分配指示信息用于指示COT中为第二终端设备分配的时间；第二终端设备共享第一终端设备发起的COT。
在本申请实施例中，一些实施例中，第二终端设备的数量可以为单个。该单个第二终端设备可以与第一终端设备通信，或者，该单个第二终端设备未与第一终端设备通信。在该单个第二终端设备与第一 终端设备通信的情况下，该单个第二终端设备可以与第一终端设备单播通信，或者，该单个第二终端设备可以与第一终端设备组播通信或者采用其他方式通信。
另一些实施例中，第二终端设备的数量可以为多个。该多个第二终端设备中的每个第二终端设备，可以与第一终端设备通信，或者，可以未与第一终端设备通信。
在本申请实施例中，COT时间分配指示信息中，用于第一终端设备的时间长度和分配给第二终端设备的时间长度的总和，与COT中的时间长度相同，从而确保在整个COT上的连续传输。
一些实施例中，COT可以以时间单元划分，也就是说，COT中可以包括多个时间单元。其中，时间长度是指时间单元的数量。其中，一些实施例中，时间单元可以为时隙，即，一个时间单元表示一个时隙。另一些实施例中，时间单元可以为mini时隙，即1个时间单元表示1个mini时隙。
举例而言，以第二终端设备为单个，且COT中包括N个时隙为例。COT时间分配指示信息中，用于第一终端设备的时间长度为N1，分配给该单个第二终端设备的时间长度为N2；N1和N2的总和等于N。
举例而言，以第二终端设备为多个，且COT中包括N个时隙为例。其中，第一终端设备为UE1，多个第二终端设备包括：UE2和UE3。COT时间分配指示信息中，用于UE1的时间长度为N1，分配给UE2的时间长度为N2，分配给UE3的时间长度为N3；N1、N2和N3的总和等于N。
在本申请实施例中，在第二终端设备为单个或者多个的情况下，一些实施例中，第一终端设备和第二终端设备可以不支持连续多时间单元传输，用于第一终端设备的时间长度可以为单个时间单元，分配给第二终端设备的时间长度可以为单个时间单元。另一些实施例中，第一终端设备和第二终端设备可以支持连续多时间单元传输，用于第一终端设备的时间长度为单个或者多个时间单元，分配给第二终端设备的时间长度为单个或者多个时间单元。也就是说，用于第一终端设备的时间长度和分配给第二终端设备的时间长度，可以相同或者不同；分配给不同的第二终端设备的时间长度，可以相同或者不同。
在本申请实施例中，在第二终端设备的数量为单个的情况下，一些实施例中，COT时间分配指示信息可以承载在以下信息中的任意一种中，发送至第二终端设备：第一阶段侧行控制信息(sidelink control information，SCI)、第二阶段SCI信息、无线资源控制(Radio Resource Control，RRC)信息和媒体访问控制控制元素(Media Access ControlControl Element，MAC CE)信息。
另一些实施例中，COT时间分配指示信息，可以由第一终端设备在COT的第一时间中向第二终端设备发送。其中，第一时间可以为COT的起始时间单元，即COT中的第一个时间单元，即为该COT的第一个时隙，或者是该COT的第一个mini slot(微时隙)。
在本申请实施例中，在第二终端设备的数量为多个的情况下，COT时间分配指示信息，可以由第一终端设备在COT的第一时间中向第二终端设备发送。其中，第一时间可以为COT的起始时间单元，即COT中的第一个时间单元，即为该COT的第一个时隙，或者是该COT的第一个mini slot(微时隙)。
本申请实施例的信道占用时间的共享方法，第一终端设备通过向第二终端设备发送COT时间分配指示信息，COT时间分配指示信息用于指示COT中为第二终端设备分配的时间；第二终端设备共享第一终端设备发起的COT，从而使得第二终端设备能够根据COT时间分配指示信息共享第一终端设备发起的COT，实现多个终端设备之间的COT共享，提高资源利用率，满足通信业务需求。
需要说明的是，上述的这些可能的实现方式可以单独被执行，也可以结合在一起被执行，本申请实施例并不对此作出限定。
请参见图3，图3是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图。需要说明的是，本申请实施例的信道占用时间的共享方法可由第一终端设备执行，第一终端设备为发起COT的终端设备。
其中，该信道占用时间的共享方法可以单独被执行，也可以结合本申请中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图3所示，该信道占用时间的共享方法可以包括但不限于如下步骤。
步骤S301，向第二终端设备发送COT时间分配指示信息，COT时间分配指示信息为比特位图；比特位图中的每一位与COT中的每一个时间单元一一对应，比特位图的长度与COT中的时间长度相同；位的数值，用于指示对应时间单元用于第一终端设备或者分配给第二终端设备。
一些实施例中，COT可以以时间单元划分，也就是说，COT中可以包括多个时间单元。其中，时 间长度是指时间单元的数量。其中，一些实施例中，时间单元可以为时隙，即，一个时间单元表示一个时隙。另一些实施例中，时间单元可以为mini时隙，即1个时间单元表示1个mini时隙。
在本申请实施例中，第二终端设备的数量可以为单个。该单个第二终端设备可以与第一终端设备通信，或者，该单个第二终端设备未与第一终端设备通信。在该单个第二终端设备与第一终端设备通信的情况下，该单个第二终端设备可以与第一终端设备单播通信，或者，该单个第二终端设备可以与第一终端设备组播通信或者采用其他方式通信。
在本申请实施例中，比特位图(bitmap)中的每一位的数值可以为0或1。在一些实施例中，针对比特位图中的每一位，该位的数值为0时，用于指示对应时间单元用于第一终端设备；该位的数值为1时，用于指示对应时间单元分配给第二终端设备。
另一些实施例中，针对比特位图中的每一位，该位的数值为0时，用于指示对应时间单元分配给第二终端设备；该位的数值为1时，用于指示对应时间单元用于第一终端设备。举例而言，COT中包括6个时间单元，比特位图中包括6个位，例如，111000，用于指示COT中的前3个时间单元用于第一终端设备，COT中的后3个时间单元分配给第二终端设备。
本申请实施例的信道占用时间的共享方法，第一终端设备通过向第二终端设备发送COT时间分配指示信息，COT时间分配指示信息为比特位图；比特位图中的每一位与COT中的每一个时间单元一一对应，比特位图的长度与COT中的时间长度相同；位的数值，用于指示对应时间单元用于第一终端设备或者分配给第二终端设备，从而使得第二终端设备能够根据COT时间分配指示信息共享第一终端设备发起的COT，实现多个终端设备之间的COT共享，提高资源利用率，满足通信业务需求。
请参见图4，图4是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图。需要说明的是，本申请实施例的信道占用时间的共享方法可由第一终端设备执行，第一终端设备为发起COT的终端设备。
其中，该信道占用时间的共享方法可以单独被执行，也可以结合本申请中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图4所示，该信道占用时间的共享方法可以包括但不限于如下步骤。
步骤S401，向第二终端设备发送COT时间分配指示信息，COT时间分配指示信息包括：用于第一终端设备的时间长度、分配给第二终端设备的时间长度以及起始时间位置。
在本申请实施例中，COT时间分配指示信息中，用于第一终端设备的时间长度和分配给第二终端设备的时间长度的总和，与COT中的时间长度相同，从而确保在整个COT上的连续传输。
在本申请实施例中，COT可以以时间单元划分，也就是说，COT中可以包括多个时间单元。其中，时间长度是指时间单元的数量。其中，一些实施例中，时间单元可以为时隙，即，一个时间单元表示一个时隙。另一些实施例中，时间单元可以为mini时隙，即1个时间单元表示1个mini时隙。也就是说，一个时间单元表示一个比特。
在本申请实施例中，用于第一终端设备的起始时间位置，为COT中的起始时间单元所在位置，可以不做指示。对于第二终端设备，一些实施例中，分配给第二终端设备的起始时间位置，可以采用COT中时间单元的序列号等表示。另一些实施例中，分配给第二终端设备的起始时间位置，可以采用COT中时间单元相对于COT中起始时间单元的偏移量表示。
在本申请实施例中，一些实施例中，第二终端设备的数量可以为单个。该单个第二终端设备可以与第一终端设备通信，或者，该单个第二终端设备未与第一终端设备通信。另一些实施例中，第二终端设备的数量可以为多个。该多个第二终端设备中的每个第二终端设备，可以与第一终端设备通信，或者，可以未与第一终端设备通信。
本申请实施例的信道占用时间的共享方法，第一终端设备通过向第二终端设备发送COT时间分配指示信息，COT时间分配指示信息包括：用于第一终端设备的时间长度、分配给第二终端设备的时间长度以及起始时间位置，其中，COT时间分配指示信息中，用于第一终端设备的时间长度和分配给第二终端设备的时间长度的总和，与COT中的时间长度相同；从而使得第二终端设备能够根据COT时间分配指示信息共享第一终端设备发起的COT，实现多个终端设备之间的COT共享，提高资源利用率，满足通信业务需求。
请参见图5，图5是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图。需要说明的是，本申请实施例的信道占用时间的共享方法可由第一终端设备执行，第一终端设备为发起COT的 终端设备。
其中，该信道占用时间的共享方法可以单独被执行，也可以结合本申请中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图5所示，该信道占用时间的共享方法可以包括但不限于如下步骤。
步骤S501，监听第三终端设备的预留资源信息。
在本申请实施例中，第三终端设备可以为除第一终端设备之外的任意的终端设备。第三终端设备的数量可以为多个。第三终端设备可以与第一终端设备通信，或者，未与第一终端设备通信。
在本申请实施例中，第一终端设备可以监听第三终端设备，获取第三终端设备的第一阶段SCI信息；对第一阶段SCI信息进行解码处理，得到第三终端设备的预留资源信息以及标识。
步骤S502，从第三终端设备中选择对应的预留资源信息位于COT内的终端设备作为第二终端设备，并确定COT时间分配指示信息。
其中，第一终端设备可以根据第二终端设备的预留资源信息，确定COT中需要为第二终端设备分配的时间；进而根据COT中需要为第二终端设备分配的时间，确定COT时间分配指示信息。
步骤S503，向第二终端设备发送COT时间分配指示信息，COT时间分配指示信息用于指示COT中为第二终端设备分配的时间；第二终端设备共享第一终端设备发起的COT。
其中，步骤S503的详细描述，可以参考上述各实施例中该步骤的相应描述，此处不再进行详细描述。
本申请实施例的信道占用时间的共享方法，第一终端设备通过监听第三终端设备的预留资源信息；从第三终端设备中选择对应的预留资源信息位于COT内的终端设备作为第二终端设备，并确定COT时间分配指示信息；向第二终端设备发送COT时间分配指示信息，COT时间分配指示信息用于指示COT中为第二终端设备分配的时间；第二终端设备共享第一终端设备发起的COT，从而使得第二终端设备能够根据COT时间分配指示信息共享第一终端设备发起的COT，实现多个终端设备之间的COT共享，提高资源利用率，满足通信业务需求。
请参见图6，图6是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图。需要说明的是，本申请实施例的信道占用时间的共享方法可由第二终端设备执行，第二终端设备为共享信道占用时间COT的终端设备。如图6所示，该信道占用时间的共享方法可以包括但不限于如下步骤。
步骤S601，接收发起COT的第一终端设备的COT时间分配指示信息，COT时间分配指示信息用于指示COT中为第二终端设备分配的时间；第二终端设备共享第一终端设备发起的COT。
在本申请实施例中，一些实施例中，第二终端设备的数量可以为单个。该单个第二终端设备可以与第一终端设备通信，或者，该单个第二终端设备未与第一终端设备通信。在该单个第二终端设备与第一终端设备通信的情况下，该单个第二终端设备可以与第一终端设备单播通信，或者，该单个第二终端设备可以与第一终端设备组播通信或者采用其他方式通信。
另一些实施例中，第二终端设备的数量可以为多个。该多个第二终端设备中的每个第二终端设备，可以与第一终端设备通信，或者，可以未与第一终端设备通信。
在本申请实施例中，COT时间分配指示信息中，用于第一终端设备的时间长度和分配给第二终端设备的时间长度的总和，与COT中的时间长度相同，从而确保在整个COT上的连续传输。
一些实施例中，COT可以以时间单元划分，也就是说，COT中可以包括多个时间单元。其中，时间长度是指时间单元的数量。其中，一些实施例中，时间单元可以为时隙，即，一个时间单元表示一个时隙。另一些实施例中，时间单元可以为mini时隙，即1个时间单元表示1个mini时隙。也就是说，一个时间单元表示一个比特。
举例而言，以第二终端设备为单个，且COT中包括N个时隙为例。COT时间分配指示信息中，用于第一终端设备的时间长度为N1，分配给该单个第二终端设备的时间长度为N2；N1和N2的总和等于N。
举例而言，以第二终端设备为多个，且COT中包括N个时隙为例。其中，第一终端设备为UE1，多个第二终端设备包括：UE2和UE3。COT时间分配指示信息中，用于UE1的时间长度为N1，分配给UE2的时间长度为N2，分配给UE3的时间长度为N3；N1、N2和N3的总和等于N。
在本申请实施例中，在第二终端设备为单个或者多个的情况下，一些实施例中，第一终端设备和第二终端设备可以不支持连续多时间单元传输，用于第一终端设备的时间长度可以为单个时间单元，分配 给第二终端设备的时间长度可以为单个时间单元。另一些实施例中，第一终端设备和第二终端设备可以支持连续多时间单元传输，用于第一终端设备的时间长度为单个或者多个时间单元，分配给第二终端设备的时间长度为单个或者多个时间单元。也就是说，用于第一终端设备的时间长度和分配给第二终端设备的时间长度，可以相同或者不同；分配给不同的第二终端设备的时间长度，可以相同或者不同。
在本申请实施例中，在第二终端设备的数量为单个的情况下，一些实施例中，COT时间分配指示信息可以承载在以下信息中的任意一种中，发送至第二终端设备：第一阶段SCI信息、第二阶段SCI信息、RRC信息和MAC CE信息。
另一些实施例中，第二终端设备执行步骤S601的过程例如可以为，接收第一终端设备在COT的第一时间中发送的COT时间分配指示信息；第一时间为COT的起始时间单元，即为该COT的第一个时隙，或者是该COT的第一个mini slot(微时隙)。
在本申请实施例中，在第二终端设备的数量为多个的情况下，第二终端设备执行步骤S601的过程例如可以为，接收第一终端设备在COT的第一时间中发送的COT时间分配指示信息；第一时间为COT的起始时间单元，即为该COT的第一个时隙，或者是该COT的第一个mini slot(微时隙)。
本申请实施例的信道占用时间的共享方法，第二终端设备通过接收发起COT的第一终端设备的COT时间分配指示信息，COT时间分配指示信息用于指示COT中为第二终端设备分配的时间；第二终端设备共享第一终端设备发起的COT，从而使得第二终端设备能够根据COT时间分配指示信息共享第一终端设备发起的COT，实现多个终端设备之间的COT共享，提高资源利用率，满足通信业务需求。
需要说明的是，上述的这些可能的实现方式可以单独被执行，也可以结合在一起被执行，本申请实施例并不对此作出限定。
请参见图7，图7是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图。需要说明的是，本申请实施例的信道占用时间的共享方法可由第二终端设备执行，第二终端设备为共享信道占用时间COT的终端设备。
其中，该信道占用时间的共享方法可以单独被执行，也可以结合本申请中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图7所示，该信道占用时间的共享方法可以包括但不限于如下步骤。
步骤S701，接收发起COT的第一终端设备的COT时间分配指示信息，COT时间分配指示信息为比特位图；比特位图中的每一位与COT中的每一个时间单元一一对应，比特位图的长度与COT中的时间长度相同；位的数值，用于指示对应时间单元用于第一终端设备或者分配给第二终端设备。
一些实施例中，COT可以以时间单元划分，也就是说，COT中可以包括多个时间单元。其中，时间长度是指时间单元的数量。其中，一些实施例中，时间单元可以为时隙，即，一个时间单元表示一个时隙。另一些实施例中，时间单元可以为mini时隙，即1个时间单元表示1个mini时隙。也就是说，一个时间单元表示一个比特。
在本申请实施例中，第二终端设备的数量可以为单个。该单个第二终端设备可以与第一终端设备通信，或者，该单个第二终端设备未与第一终端设备通信。在该单个第二终端设备与第一终端设备通信的情况下，该单个第二终端设备可以与第一终端设备单播通信，或者，该单个第二终端设备可以与第一终端设备组播通信或者采用其他方式通信。
在本申请实施例中，比特位图(bitmap)中的每一位的数值可以为0或1。在一些实施例中，针对比特位图中的每一位，该位的数值为0时，用于指示对应时间单元用于第一终端设备；该位的数值为1时，用于指示对应时间单元分配给第二终端设备。
另一些实施例中，针对比特位图中的每一位，该位的数值为0时，用于指示对应时间单元分配给第二终端设备；该位的数值为1时，用于指示对应时间单元用于第一终端设备。举例而言，COT中包括6个时间单元，比特位图中包括6个位，例如，111000，用于指示COT中的前3个时间单元用于第一终端设备，COT中的后3个时间单元分配给第二终端设备。
本申请实施例的信道占用时间的共享方法，第二终端设备通过接收发起COT的第一终端设备的COT时间分配指示信息，COT时间分配指示信息为比特位图；比特位图中的每一位与COT中的每一个时间单元一一对应，比特位图的长度与COT中的时间长度相同；位的数值，用于指示对应时间单元用于第一终 端设备或者分配给第二终端设备，从而使得第二终端设备能够根据COT时间分配指示信息共享第一终端设备发起的COT，实现多个终端设备之间的COT共享，提高资源利用率，满足通信业务需求。
请参见图8，图8是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图。需要说明的是，本申请实施例的信道占用时间的共享方法可由第二终端设备执行，第二终端设备为共享信道占用时间COT的终端设备。
其中，该信道占用时间的共享方法可以单独被执行，也可以结合本申请中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图8所示，该信道占用时间的共享方法可以包括但不限于如下步骤。
步骤S801，接收发起COT的第一终端设备的COT时间分配指示信息，COT时间分配指示信息包括：用于第一终端设备的时间长度、分配给第二终端设备的时间长度以及起始时间位置。
在本申请实施例中，COT时间分配指示信息中，用于第一终端设备的时间长度和分配给第二终端设备的时间长度的总和，与COT中的时间长度相同，从而确保在整个COT上的连续传输。
在本申请实施例中，COT可以以时间单元划分，也就是说，COT中可以包括多个时间单元。其中，时间长度是指时间单元的数量。其中，一些实施例中，时间单元可以为时隙，即，一个时间单元表示一个时隙。另一些实施例中，时间单元可以为mini时隙，即1个时间单元表示1个mini时隙。也就是说，一个时间单元表示一个比特。
在本申请实施例中，用于第一终端设备的起始时间位置，为COT中的起始时间单元所在位置，可以不做指示。对于第二终端设备，一些实施例中，分配给第二终端设备的起始时间位置，可以采用COT中时间单元的序列号等表示。另一些实施例中，分配给第二终端设备的起始时间位置，可以采用COT中时间单元相对于COT中起始时间单元的偏移量表示。
在本申请实施例中，一些实施例中，第二终端设备的数量可以为单个。该单个第二终端设备可以与第一终端设备通信，或者，该单个第二终端设备未与第一终端设备通信。另一些实施例中，第二终端设备的数量可以为多个。该多个第二终端设备中的每个第二终端设备，可以与第一终端设备通信，或者，可以未与第一终端设备通信。
本申请实施例的信道占用时间的共享方法，第二终端设备通过接收发起COT的第一终端设备的COT时间分配指示信息，COT时间分配指示信息包括：用于第一终端设备的时间长度、分配给第二终端设备的时间长度以及起始时间位置，其中，COT时间分配指示信息中，用于第一终端设备的时间长度和分配给第二终端设备的时间长度的总和，与COT中的时间长度相同；从而使得第二终端设备能够根据COT时间分配指示信息共享第一终端设备发起的COT，实现多个终端设备之间的COT共享，提高资源利用率，满足通信业务需求。
请参见图9，图9是本申请实施例提供的另一种信道占用时间的共享方法的流程示意图。需要说明的是，本申请实施例的信道占用时间的共享方法可由第二终端设备执行，第二终端设备为共享信道占用时间COT的终端设备。
其中，该信道占用时间的共享方法可以单独被执行，也可以结合本申请中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图9所示，该信道占用时间的共享方法可以包括但不限于如下步骤。
步骤S901，接收发起COT的第一终端设备的COT时间分配指示信息，COT时间分配指示信息用于指示COT中为第二终端设备分配的时间；第二终端设备共享第一终端设备发起的COT。
其中，步骤S901的详细描述，可以参考上述各实施例中该步骤的相应描述，此处不再进行详细描述。
步骤S902，在分配给第二终端设备的时间全部用于发送信道信息，且分配给第二终端设备的时间中存在未发送信道信息的第一剩余时间的情况下，在第一剩余时间上重复发送信道信息。
在本申请实施例中，分配给第二终端设备的时间全部用于发送信道信息，可以指分配给第二终端设备的时间全部用于发送信道信息，而不会用于发送其他信息。其中，信道信息可以包括以下中的至少一种：物理侧行控制信道(Physical Sidelink Control Channel，PSCCH)信息、物理侧行共享信道(Physical Sidelink Shared Channel，PSSCH)信息和物理侧行反馈信道(Physical Sidelink Feedback Channel，PSFCH)信息。
其中，分配给第二终端设备的时间中存在未发送信道信息的第一剩余时间，是指，分配给第二终端 设备的时间的长度，大于第二终端设备发送信道信息的时间的长度。在分配给第二终端设备的时间的长度，等于第二终端设备发送信道信息的时间的长度时，不存在未发送信道信息的第一剩余时间，也就是说，没有剩余时间。其中，重复发送的信道信息例如可以为PSCCH信息，和/或，PSSCH信息。
其中，如图10所示，为第二终端设备的数量为单个的情况下COT的第一分配示意图。在图10中，COT中时间单元，即时隙(slot)的数量为6个，依次为slot1、slot2、slot3、slot4、slot5、slot6。其中，slot1至slot3，用于第一终端设备；slot4至slot6，分配给第二终端设备。
其中，分配给第二终端设备的slot4至slot6中，第二终端设备采用slot4至slot5可以完成对信道信息的发送，则第二终端设备可以在slot6重复发送信道信息。另外，在slot6中存在第一终端设备的PSFCH信息发送时间时，第一终端设备也可以在slot6中发送PSFCH信息。
其中，如图11所示，为第二终端设备的数量为多个的情况下COT的第一分配示意图。在图11中，COT中时间单元，即时隙(slot)的数量为6个，依次为slot1、slot2、slot3、slot4、slot5、slot6。其中，slot1至slot2，用于第一终端设备(例如，UE1)；slot3至slot4，分配给一个第二终端设备(例如，UE2)；slot5至slot6，分配给另一个第二终端设备(例如，UE3)。
其中，分配给UE3的slot5至slot6中，UE3可以采用slot5完成对信道信息的发送，则UE3可以在slot6重复发送信道信息。另外，在slot6中存在其他终端设备的PSFCH信息发送时间时，其他终端设备也可以在slot6中发送PSFCH信息。其他终端设备例如可以为UE1或者UE2。
步骤S903，在分配给第二终端设备的时间全部用于发送信道信息，且分配给第二终端设备的时间中存在未发送信道信息的第二剩余时间，且分配给第二终端设备的时间中包含COT中的最后一个时间单元的情况下，在第二剩余时间上停止发送信道信息。
其中，如图12所示，为第二终端设备的数量为单个的情况下COT的第二分配示意图。在图12中，COT中时间单元，即时隙(slot)的数量为6个，依次为slot1、slot2、slot3、slot4、slot5、slot6。其中，slot1至slot3，用于第一终端设备；slot4至slot6，分配给第二终端设备。
其中，分配给第二终端设备的slot4至slot6中，第二终端设备采用slot4至slot5可以完成对信道信息的发送，在slot6为COT中的最后一个时间单元，即，最后一个时隙时，第二终端设备可以在slot6停止发送信道信息。
步骤S904，在分配给第二终端设备的时间部分用于发送信道信息，且用于发送信道信息的部分时间中存在未发送信道信息的第三剩余时间的情况下，在第三剩余时间上发送扩展循环前缀信息。
步骤S905，在COT的第二时间中存在第二终端设备的PSFCH信息发送时间的情况下，在PSFCH信息发送时间中发送PSFCH信息；其中，第二时间为用于第一终端设备的时间，或者，为分配给除第二终端设备之外的其他第二终端设备的时间。
其中，如图13所示，为第二终端设备的数量为多个的情况下COT的第二分配示意图。在图13中，COT中时间单元，即时隙(slot)的数量为6个，依次为slot1、slot2、slot3、slot4、slot5、slot6。其中，slot1至slot2，用于第一终端设备(例如，UE1)；slot3至slot4，分配给一个第二终端设备(例如，UE2)；slot5至slot6，分配给另一个第二终端设备(例如，UE3)。
其中，分配给UE3的slot5至slot6中，slot6中存在UE2的PSFCH信息发送时间，则UE2可以复用slot6中的PSFCH信息发送时间，用于发送PSFCH信息。
需要说明的是，上述步骤S902至步骤S905中的各步骤为单独的步骤，也就是说，可以只执行其中的一个步骤或者多个步骤。各步骤之间没有先后顺序或者关联关系，可以分别独立执行。
本申请实施例的信道占用时间的共享方法，第二终端设备通过接收发起COT的第一终端设备的COT时间分配指示信息，COT时间分配指示信息用于指示COT中为第二终端设备分配的时间；第二终端设备共享第一终端设备发起的COT；在分配的时间中存在剩余时间时，根据情况选择用于重复发送信道信息、停止发送信道信息或者发送扩展循环前缀信息；在PSFCH信息发送时间位于分配给其他终端设备的时间中时，复用该时间用于发送PSFCH信息，从而实现多个终端设备之间的COT共享，提高资源利用率，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14，图14为本申请实施例提供的一种第一终端设备140的结构示意图。其中，第一终端设备为发起COT的终端设备。
图14所示的第一终端设备140包括收发单元1401，用于向第二终端设备发送COT时间分配指示信息，COT时间分配指示信息用于指示所述COT中为所述第二终端设备分配的时间；所述第二终端设备共享所述第一终端设备发起的所述COT。
在一种实施方式中，所述COT时间分配指示信息中，用于所述第一终端设备的时间长度和分配给所述第二终端设备的时间长度的总和，与所述COT中的时间长度相同。
在一种实施方式中，所述第二终端设备的数量为单个。
在一种实施方式中，所述COT时间分配指示信息由以下任意一种信息承载：第一阶段侧行控制信息SCI、第二阶段SCI信息、无线资源控制RRC信息和媒体访问控制控制元素MAC CE信息。
在一种实施方式中，所述第二终端设备的数量为多个。
在一种实施方式中，所述收发单元1401具体用于，在所述COT的第一时间中向所述第二终端设备发送所述COT时间分配指示信息；所述第一时间为所述COT的起始时间单元，即为该COT的第一个时隙，或者是该COT的第一个mini slot(微时隙)。
在一种实施方式中，所述COT时间分配指示信息为比特位图；所述比特位图中的每一位与所述COT中的每一个时间单元一一对应，所述比特位图的长度与所述COT中的时间长度相同；所述位的数值，用于指示对应时间单元用于所述第一终端设备或者分配给所述第二终端设备。
在一种实施方式中，所述COT时间分配指示信息包括：用于所述第一终端设备的时间长度、分配给所述第二终端设备的时间长度以及起始时间位置。
在一种实施方式中，所述第一终端设备和所述第二终端设备不支持连续多时间单元传输，用于所述第一终端设备的时间长度以及分配给所述第二终端设备的时间长度为单个时间单元；或者，所述第一终端设备和所述第二终端设备支持连续多时间单元传输，用于所述第一终端设备的时间长度为单个或者多个时间单元，分配给所述第二终端设备的时间长度为单个或者多个时间单元。
在一种实施方式中，第一终端设备还包括：处理单元1402，用于监听第三终端设备的预留资源信息；从所述第三终端设备中选择对应的预留资源信息位于所述COT内的终端设备作为所述第二终端设备，并确定所述COT时间分配指示信息。
请参见图15，图15是本申请实施例提供的一种第二终端设备150的结构示意图。其中，第二终端设备为共享信道占用时间COT的终端设备，第二终端设备150包括：收发单元1501，接收发起COT的第一终端设备的COT时间分配指示信息，COT时间分配指示信息用于指示所述COT中为所述第二终端设备分配的时间；所述第二终端设备共享所述第一终端设备发起的所述COT。
在一种实施方式中，所述COT时间分配指示信息中，用于所述第一终端设备的时间长度和分配给所述第二终端设备的时间长度的总和，与所述COT中的时间长度相同。
在一种实施方式中，所述第二终端设备的数量为单个。
在一种实施方式中，所述COT时间分配指示信息由以下任意一种信息承载：第一阶段侧行控制信息SCI、第二阶段SCI信息、无线资源控制RRC信息和媒体访问控制控制元素MAC CE信息。
在一种实施方式中，所述第二终端设备的数量为多个。
在一种实施方式中，所述收发单元1501具体用于，接收所述第一终端设备在所述COT的第一时间中发送的所述COT时间分配指示信息；所述第一时间为所述COT的起始时间单元，即为该COT的第一个时隙，或者是该COT的第一个mini slot(微时隙)。
在一种实施方式中，所述COT时间分配指示信息为比特位图；其中，所述比特位图中的每一位与所述COT中的每一个时间单元一一对应，所述比特位图的长度与所述COT中的时间长度相同；所述位的数值，用于指示对应时间单元用于所述第一终端设备或者分配给所述第二终端设备。
在一种实施方式中，所述COT时间分配指示信息包括：用于所述第一终端设备的时间长度、分配给所述第二终端设备的时间长度以及起始时间位置。
在一种实施方式中，所述第一终端设备和所述第二终端设备不支持连续多时间单元传输，用于所述第一终端设备的时间长度以及分配给所述第二终端设备的时间长度为单个时间单元；或者，所述第一终端设备和所述第二终端设备支持连续多时间单元传输，用于所述第一终端设备的时间长度为单个或者多个时间单元，分配给所述第二终端设备的时间长度为单个或者多个时间单元。
在一种实施方式中，所述COT中分配给所述第二终端设备的时间，全部或者部分用于发送信道信息；其中，所述信道信息包括以下中的至少一种：物理侧行控制信道PSCCH信息、物理侧行共享信道PSSCH信息和物理侧行反馈信道PSFCH信息。
在一种实施方式中，分配给所述第二终端设备的时间全部用于发送信道信息，所述收发单元1501，还用于在分配给所述第二终端设备的时间中存在未发送所述信道信息的第一剩余时间的情况下，在所述第一剩余时间上重复发送所述信道信息；或者，在分配给所述第二终端设备的时间中存在未发送所述信道信息的第二剩余时间，且分配给所述第二终端设备的时间中包含所述COT中的最后一个时间单元的情况下，在所述第二剩余时间上停止发送所述信道信息。
在一种实施方式中，分配给所述第二终端设备的时间部分用于发送信道信息，所述收发单元1501，还用于在用于发送所述信道信息的部分时间中存在未发送所述信道信息的第三剩余时间的情况下，在所述第三剩余时间上发送扩展循环前缀信息。
在一种实施方式中，所述收发单元1501，还用于在所述COT的第二时间中存在所述第二终端设备的PSFCH信息发送时间的情况下，在所述PSFCH信息发送时间中发送所述PSFCH信息；其中，所述第二时间为用于所述第一终端设备的时间，或者，为分配给除所述第二终端设备之外的其他第二终端设备的时隙。
请参见图16，图16是本申请实施例提供的一种通信装置160的结构示意图。通信装置160可以是终端设备(如前述方法实施例中的第一终端设备或者第二终端设备)，也可以是支持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160可以包括一个或多个处理器1601。处理器1601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160中还可以包括一个或多个存储器1602，其上可以存有计算机程序1604，处理器1601执行所述计算机程序1604，以使得通信装置160执行上述方法实施例中描述的方法。可选的，所述存储器1602中还可以存储有数据。通信装置160和存储器1602可以单独设置，也可以集成在一起。
可选的，通信装置160还可以包括收发器1605、天线1606。收发器1605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1605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160中还可以包括一个或多个接口电路1607。接口电路1607用于接收代码指令并传输至处理器1601。处理器1601运行所述代码指令以使通信装置160执行上述方法实施例中描述的方法。
通信装置160为第一终端设备：收发器1605用于执行图2中的步骤S201；图3中的步骤S301；图4中的步骤S401；图5中的步骤S503。处理器1601用于执行图5中的步骤S501和步骤S502。
通信装置160为第二终端设备：收发器1605用于执行图6中的步骤S601；图7中的步骤S701；图8中的步骤S801；图9中的步骤S901、S902、S903、S904和S905。
在一种实现方式中，处理器1601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1601可以存有计算机程序1604，计算机程序1604在处理器1601上运行，可使得通信装置160执行上述方法实施例中描述的方法。计算机程序1604可能固化在处理器1601中，该种情况下，处理器1601可能由硬件实现。
在一种实现方式中，通信装置160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。本申请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(如前述方法实施例中的第一终端设备)，但本申请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16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17所示的芯片的结构示意图。图17所示的芯片包括处理器1701和接口1702。其中，处理器1701的数量可以是一个或多个，接口1702的数量可以是多个。
可选的，芯片还包括存储器1703，存储器1703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申请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申请实施例保护的范围。
本申请实施例还提供一种通信系统，该系统包括前述图14实施例中的第一终端设备，或者，该系统包括前述图15实施例中的第二终端设备。
本申请还提供一种可读存储介质，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。
本申请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申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。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：本申请中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围，也表示先后顺序。
本申请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，本申请不做限制。在本申请实施例中，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。
本申请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，本申请并不限定。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，本申请中的表格中，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。
本申请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申请的范围。
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，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (31)

  1. 一种信道占用时间的共享方法，其特征在于，所述方法由发起信道占用时间COT的第一终端设备执行，所述方法包括：
    向第二终端设备发送COT时间分配指示信息，所述COT时间分配指示信息用于指示所述COT中为所述第二终端设备分配的时间；所述第二终端设备共享所述第一终端设备发起的所述COT。
  2. 根据权利要求1所述的方法，其特征在于，所述COT时间分配指示信息中，用于所述第一终端设备的时间长度和分配给所述第二终端设备的时间长度的总和，与所述COT中的时间长度相同。
  3. 根据权利要求2所述的方法，其特征在于，所述第二终端设备的数量为单个。
  4. 根据权利要求3所述的方法，其特征在于，所述COT时间分配指示信息由以下任意一种信息承载：
    第一阶段侧行控制信息SCI、第二阶段SCI信息、无线资源控制RRC信息和媒体访问控制控制元素MAC CE信息。
  5. 根据权利要求2所述的方法，其特征在于，所述第二终端设备的数量为多个。
  6. 根据权利要求5所述的方法，其特征在于，所述向第二终端设备发送COT时间分配指示信息，包括：
    在所述COT的第一时间中向所述第二终端设备发送所述COT时间分配指示信息；所述第一时间为所述COT的起始时间单元。
  7. 根据权利要求3所述的方法，其特征在于，所述COT时间分配指示信息为比特位图；
    所述比特位图中的每一位与所述COT中的每一个时间单元一一对应，所述比特位图的长度与所述COT中的时间长度相同；
    所述位的数值，用于指示对应时间单元用于所述第一终端设备或者分配给所述第二终端设备。
  8. 根据权利要求3或5所述的方法，其特征在于，所述COT时间分配指示信息包括：用于所述第一终端设备的时间长度、分配给所述第二终端设备的时间长度以及起始时间位置。
  9. 根据权利要求8所述的方法，其特征在于，所述第一终端设备和所述第二终端设备不支持连续多时间单元传输；用于所述第一终端设备的时间长度以及分配给所述第二终端设备的时间长度为单个时间单元；或者，
    所述第一终端设备和所述第二终端设备支持连续多时间单元传输；用于所述第一终端设备的时间长度为单个或者多个时间单元，分配给所述第二终端设备的时间长度为单个或者多个时间单元。
  10. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    监听第三终端设备的预留资源信息；
    从所述第三终端设备中选择对应的预留资源信息位于所述COT内的终端设备作为所述第二终端设备，并确定所述COT时间分配指示信息。
  11. 一种信道占用时间的共享方法，其特征在于，所述方法由共享信道占用时间COT的第二终端设备执行，所述方法包括：
    接收发起COT的第一终端设备的COT时间分配指示信息，所述COT时间分配指示信息用于指示所述COT中为所述第二终端设备分配的时间；所述第二终端设备共享所述第一终端设备发起的所述COT。
  12. 根据权利要求11所述的方法，其特征在于，所述COT时间分配指示信息中，用于所述第一终端设备的时间长度和分配给所述第二终端设备的时间长度的总和，与所述COT中的时间长度相同。
  13. 根据权利要求12所述的方法，其特征在于，所述第二终端设备的数量为单个。
  14. 根据权利要求13所述的方法，其特征在于，所述COT时间分配指示信息由以下任意一种信息承载：
    第一阶段侧行控制信息SCI、第二阶段SCI信息、无线资源控制RRC信息和媒体访问控制控制元素MAC CE信息。
  15. 根据权利要求12所述的方法，其特征在于，所述第二终端设备的数量为多个。
  16. 根据权利要求15所述的方法，其特征在于，所述接收发起COT的第一终端设备的COT时间分配指示信息，包括：
    接收所述第一终端设备在所述COT的第一时间中发送的所述COT时间分配指示信息；所述第一时间为所述COT的起始时间单元。
  17. 根据权利要求13所述的方法，其特征在于，所述COT时间分配指示信息为比特位图；
    其中，所述比特位图中的每一位与所述COT中的每一个时间单元一一对应，所述比特位图的长度与所述COT中的时间长度相同；
    所述位的数值，用于指示对应时间单元用于所述第一终端设备或者分配给所述第二终端设备。
  18. 根据权利要求13或15所述的方法，其特征在于，所述COT时间分配指示信息包括：用于所述第一终端设备的时间长度、分配给所述第二终端设备的时间长度以及起始时间位置。
  19. 根据权利要求18所述的方法，其特征在于，所述第一终端设备和所述第二终端设备不支持连续多时间单元传输，用于所述第一终端设备的时间长度以及分配给所述第二终端设备的时间长度为单个时间单元；或者，
    所述第一终端设备和所述第二终端设备支持连续多时间单元传输，用于所述第一终端设备的时间长度为单个或者多个时间单元，分配给所述第二终端设备的时间长度为单个或者多个时间单元。
  20. 根据权利要求11所述的方法，其特征在于，所述COT中分配给所述第二终端设备的时间，全部或者部分用于发送信道信息；
    其中，所述信道信息包括以下中的至少一种：物理侧行控制信道PSCCH信息、物理侧行共享信道PSSCH信息和物理侧行反馈信道PSFCH信息。
  21. 根据权利要求20所述的方法，其特征在于，分配给所述第二终端设备的时间全部用于发送信道信息，所述方法还包括：
    在分配给所述第二终端设备的时间中存在未发送所述信道信息的第一剩余时间的情况下，在所述第一剩余时间上重复发送所述信道信息；
    或者，
    在分配给所述第二终端设备的时间中存在未发送所述信道信息的第二剩余时间，且分配给所述第二终端设备的时间中包含所述COT中的最后一个时间单元的情况下，在所述第二剩余时间上停止发送所述信道信息。
  22. 根据权利要求20所述的方法，其特征在于，分配给所述第二终端设备的时间部分用于发送信道信息，所述方法还包括：
    在用于发送所述信道信息的部分时间中存在未发送所述信道信息的第三剩余时间的情况下，在所述 第三剩余时间上发送扩展循环前缀信息。
  23. 根据权利要求20所述的方法，其特征在于，所述方法还包括：
    在所述COT的第二时间中存在所述第二终端设备的PSFCH信息发送时间的情况下，在所述PSFCH信息发送时间中发送所述PSFCH信息；
    其中，所述第二时间为用于所述第一终端设备的时间，或者，为分配给除所述第二终端设备之外的其他第二终端设备的时隙。
  24. 一种第一终端设备，其特征在于，所述第一终端设备发起信道占用时间COT，所述第一终端设备包括：
    收发单元，用于向第二终端设备发送COT时间分配指示信息，所述COT时间分配指示信息用于指示所述COT中为所述第二终端设备分配的时间；所述第二终端设备共享所述第一终端设备发起的所述COT。
  25. 一种第二终端设备，其特征在于，所述第二终端设备共享信道占用时间COT，所述第二终端设备包括：
    收发单元，用于接收发起COT的第一终端设备的COT时间分配指示信息，所述COT时间分配指示信息用于指示所述COT中为所述第二终端设备分配的时间；所述第二终端设备共享所述第一终端设备发起的所述COT。
  26. 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10中任一项所述的方法。
  27. 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11至23中任一项所述的方法。
  28. 一种通信装置，其特征在于，包括：处理器和接口电路；
    所述接口电路，用于接收代码指令并传输至所述处理器；
    所述处理器，用于运行所述代码指令以执行如权利要求1至10中任一项所述的方法。
  29. 一种通信装置，其特征在于，包括：处理器和接口电路；
    所述接口电路，用于接收代码指令并传输至所述处理器；
    所述处理器，用于运行所述代码指令以执行如权利要求11至23中任一项所述的方法。
  30. 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10中任一项所述的方法被实现。
  31. 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11至23中任一项所述的方法被实现。
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