A method and device for sharing channel occupancy time

Abstract

An embodiment of the present application discloses a method and apparatus for sharing channel occupancy time, which can be applied to the field of communication technology. The method includes: a first terminal device sends COT time allocation indication information to a second terminal device, where 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, thereby realizing COT sharing among multiple terminal devices, improving resource utilization, and meeting communication service needs.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method and device for sharing channel occupancy time (COT). Background Art

[0002] With the continuous emergence of new communication services and application requirements, terminal sidelink (SL, also known as direct link) communications have increasingly stringent performance requirements such as transmission bandwidth, communication rate, communication latency, reliability, and scalability. Limited licensed spectrum alone cannot meet the diverse application scenarios and requirements of the future. Currently, COT sharing is supported for terminal sidelink communications in unlicensed spectrum (SL-U), but the specific implementation of COT sharing is lacking. Summary of the Invention

[0003] An embodiment of the present application provides a channel occupancy time sharing method and apparatus thereof, which can be applied to the field of communication technology, so as to enable a first terminal device to send COT time allocation indication information to a second terminal device, where 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, thereby realizing COT sharing among multiple terminal devices, improving resource utilization, and meeting communication service needs.

[0004] In a first aspect, an embodiment of the present application provides a method for sharing channel occupancy time, which is executed by a first terminal device that initiates the channel occupancy time COT. The method includes: sending COT time allocation indication information to a second terminal device, wherein 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.

[0005] In one implementation, 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.

[0006] In one implementation, the number of the second terminal device is single.

[0007] In one implementation, 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 medium access control element MAC CE information.

[0008] In one implementation, there are multiple second terminal devices.

[0009] In one implementation, the sending of 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, that is, the first time slot of the COT, or the first mini slot of the COT.

[0010] In one implementation, the COT time allocation indication information is a bit map; each bit in the bit map corresponds one-to-one to each time unit in the COT, and the length of the bit map is the same as the time length in the COT; the value of the bit is used to indicate whether the corresponding time unit is used for the first terminal device or allocated to the second terminal device.

[0011] In one implementation, the COT time allocation indication information includes: a time length for the first terminal device, a time length allocated to the second terminal device, and a starting time position.

[0012] In one implementation, the first terminal device and the second terminal device do not support continuous multi-time unit transmission, and the time length used for the first terminal device and the time length allocated to the second terminal device are a single time unit; or, the first terminal device and the second terminal device 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 a single or multiple time units.

[0013] In one implementation, the method further includes: monitoring the reserved resource information of a third terminal device; selecting a terminal device whose corresponding reserved resource information is located within the COT from the third terminal device as the second terminal device, and determining the COT time allocation indication information.

[0014] In a second aspect, an embodiment of the present application provides another method for sharing channel occupancy time, which is executed by a second terminal device that shares the channel occupancy time COT. The method includes: receiving COT time allocation indication information from a first terminal device that initiates the COT, wherein 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.

[0015] In one implementation, 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.

[0016] In one implementation, the number of the second terminal device is single.

[0017] In one implementation, 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 medium access control element MAC CE information.

[0018] In one implementation, there are multiple second terminal devices.

[0019] In one implementation, the receiving of COT time allocation indication information of the first terminal device that initiates the COT includes: 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, that is, the first time slot of the COT, or the first mini slot of the COT.

[0020] In one implementation, the COT time allocation indication information is a bit map; wherein, each bit in the bit map corresponds one-to-one to each time unit in the COT, and the length of the bit map 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.

[0021] In one implementation, the COT time allocation indication information includes: a time length for the first terminal device, a time length allocated to the second terminal device, and a starting time position.

[0022] In one implementation, the first terminal device and the second terminal device do not support continuous multi-time unit transmission, and the time length used for the first terminal device and the time length allocated to the second terminal device are a single time unit; or, the first terminal device and the second terminal device 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 a single or multiple time units.

[0023] In one implementation, the time allocated to the second terminal device in the COT is used in whole or in part 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.

[0024] In one implementation, the time allocated to the second terminal device is all used to send channel information, and the method further includes: if there is a first remaining time in the time allocated to the second terminal device during which the channel information is not sent, repeatedly sending the channel information during the first remaining time; or if there is a second remaining time in the time allocated to the second terminal device during which the channel information is not sent, and the time allocated to the second terminal device includes the last time unit in the COT, stopping sending the channel information during the second remaining time.

[0025] In one implementation, the time portion allocated to the second terminal device is used to send channel information, and the method further includes: when there is a third remaining time in the partial time used to send the channel information during which the channel information is not sent, sending extended cyclic prefix information in the third remaining time.

[0026] In one implementation, the method further includes: when there is a PSFCH information sending time for the second terminal device in the second time of the COT, sending the PSFCH information in the PSFCH information sending time; wherein the second time is the time used for the first terminal device, or is a time slot allocated to other second terminal devices other than the second terminal device.

[0027] In a third aspect, an embodiment of the present application provides a first terminal device that implements some or all of the functions of the first terminal device described in the method described in the first aspect. For example, the functions of the first terminal device may include some or all of the functions in the embodiments of the present application, or may include the functions of implementing any one of the embodiments of the present application separately. The functions may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0028] In one implementation, the structure of the first terminal device may include a transceiver module and a processing module, wherein the processing module is configured to support the first terminal device in performing the corresponding functions of the above method. The transceiver module is used to support communication between the first terminal device and other devices. The first terminal device may also include a storage module, which is coupled to the transceiver module and the processing module and stores computer programs and data necessary for the first terminal device.

[0029] As an example, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory.

[0030] In a fourth aspect, an embodiment of the present application provides a second terminal device that implements some or all of the functions of the second terminal device in the method example described in the second aspect above. For example, the functions of the second terminal device may include some or all of the functions in the embodiments of the present application, or may include the functions of implementing any one of the embodiments of the present application separately. The functions may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0031] In one implementation, the second terminal device may include a transceiver module and a processing module, the processing module being configured to support the second terminal device in executing the corresponding functions of the above-described method. The transceiver module is configured to support communication between the second terminal device and other devices. The second terminal device may also include a storage module, coupled to the transceiver module and the processing module, which stores computer programs and data necessary for the second terminal device.

[0032] As an example, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory.

[0033] In a fifth aspect, an embodiment of the present application provides a communication device, which includes a processor. When the processor calls a computer program in a memory, it executes the method described in the first aspect above.

[0034] In a sixth aspect, an embodiment of the present application provides a communication device, which includes a processor. When the processor calls a computer program in a memory, it executes the method described in the second aspect above.

[0035] In the seventh aspect, an embodiment of the present application provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the first aspect above.

[0036] In an eighth aspect, an embodiment of the present application provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the second aspect above.

[0037] In the ninth aspect, an embodiment of the present application provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the first aspect above.

[0038] In the tenth aspect, an embodiment of the present application provides a communication device, which includes a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the second aspect above.

[0039] In the eleventh aspect, an embodiment of the present application provides a communication system, which includes the first terminal device described in the third aspect and the second terminal device described in the fourth aspect, or the system includes the communication device described in the fifth aspect 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 described in the tenth aspect.

[0040] In a twelfth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing instructions for the above-mentioned terminal device, and when the instructions are executed, the terminal device executes the method described in the first aspect.

[0041] In a thirteenth aspect, an embodiment of the present invention provides a readable storage medium for storing instructions used by the above-mentioned network device, and when the instructions are executed, the network device executes the method described in the above-mentioned second aspect.

[0042] In a fourteenth aspect, the present application also provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect above.

[0043] In a fifteenth aspect, the present application also provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the second aspect above.

[0044] In a sixteenth aspect, the present application provides a chip system comprising at least one processor and an interface for supporting a first terminal device in implementing the functions described in the first aspect, such as determining or processing at least one of the data and information described in the above method. In one possible design, the chip system further comprises a memory for storing computer programs and data necessary for the first terminal device. The chip system may consist of a chip alone or may include a chip and other discrete components.

[0045] In a seventeenth aspect, the present application provides a chip system comprising at least one processor and an interface for supporting a second terminal device in implementing the functions described in the second aspect, such as determining or processing at least one of the data and information described in the aforementioned method. In one possible design, the chip system further comprises a memory for storing computer programs and data necessary for the second terminal device. The chip system may consist of a chip alone or may include a chip and other discrete components.

[0046] In an eighteenth aspect, the present application provides a computer program which, when executed on a computer, enables the computer to execute the method described in the first aspect above.

[0047] In a nineteenth aspect, the present application provides a computer program which, when executed on a computer, enables the computer to execute the method described in the second aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0049] Figure 1 This is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

[0050] Figure 2 This is a flow chart of a method for sharing channel occupancy time provided in an embodiment of the present application;

[0051] Figure 3 1 is a flow chart of another method for sharing channel occupancy time provided in an embodiment of the present application;

[0052] Figure 4 1 is a flow chart of another method for sharing channel occupancy time provided in an embodiment of the present application;

[0053] Figure 5 1 is a flow chart of another method for sharing channel occupancy time provided in an embodiment of the present application;

[0054] Figure 6 1 is a flow chart of another method for sharing channel occupancy time provided in an embodiment of the present application;

[0055] Figure 7 1 is a flow chart of another method for sharing channel occupancy time provided in an embodiment of the present application;

[0056] Figure 8 1 is a flow chart of another method for sharing channel occupancy time provided in an embodiment of the present application;

[0057] Figure 9 1 is a flow chart of another method for sharing channel occupancy time provided in an embodiment of the present application;

[0058] Figure 10 is a first allocation diagram of COT when the number of second terminal devices is only one;

[0059] Figure 11 is a first allocation diagram of COT when there are multiple second terminal devices;

[0060] Figure 12 is a second allocation diagram of the COT when the number of the second terminal device is only one;

[0061] Figure 13 is a second allocation diagram of the COT when there are multiple second terminal devices;

[0062] Figure 14 This is a schematic structural diagram of a first terminal device provided in an embodiment of the present application;

[0063] Figure 15 This is a schematic diagram of the structure of a second terminal device provided in an embodiment of the present application;

[0064] Figure 16 This is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0065] Figure 17 This is a schematic diagram of the structure of a chip provided in an embodiment of the present application. DETAILED DESCRIPTION

[0066] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and are not to be construed as limitations on the present application. In the description of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships can exist, for example, A and / or B can mean: the existence of A alone, the existence of A and B at the same time, and the existence of B alone.

[0067] In order to better understand the channel occupancy time sharing method disclosed in an embodiment of the present application, the communication system to which the embodiment of the present application is applicable is first described below.

[0068] See Figure 1 , Figure 1A schematic diagram of a communication system architecture provided in an embodiment of the present application. The communication system may include, but is not limited to, three terminal devices, wherein the terminal devices communicate with each other via sidelink. Figure 1 The number and form of the devices shown are for example only and do not constitute a limitation on the embodiments of the present application. Figure 1 The communication system shown includes a first terminal device 101 , a second terminal device 102 and a third terminal device 103 as an example.

[0069] In the embodiment of the present application, the first terminal device 101, the second terminal device 102, and the third terminal device 103 can be an entity for receiving or transmitting signals, such as a mobile phone. The terminal device can also be referred to as a terminal device (terminal), user equipment (UE), mobile station (MS), mobile terminal device (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 (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving (self-driving), a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), a wireless terminal device in a smart home (smart home), etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

[0070] It can be understood that the communication system described in the embodiment of the present application is for the purpose of more clearly illustrating the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided by the embodiment of the present application. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present application is also applicable to similar technical problems.

[0071] With the continuous emergence of new communication services and application requirements, terminal sidelink (SL, also known as direct link) communications have increasingly stringent performance requirements for transmission bandwidth, communication rate, communication latency, reliability, and scalability. Limited licensed spectrum alone cannot meet the diverse application scenarios and requirements of the future. Currently, channel occupancy information (COT) sharing is supported for terminal sidelink communications on unlicensed spectrum (SL-U), but the specific implementation of COT sharing is lacking. Therefore, it is necessary to determine the specific implementation of COT sharing.

[0072] The following describes in detail the channel occupancy time sharing method and device provided by the present application in conjunction with the accompanying drawings.

[0073] See Figure 2 , Figure 2 This is a flow chart 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 of the embodiment of the present application is executed by the first terminal device, which is the terminal device that initiates COT. Figure 2 As shown, the channel occupancy time sharing method may include but is not limited to the following steps.

[0074] Step S201: Send COT time allocation indication information to the second terminal device, where 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.

[0075] In some embodiments of the present application, 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. When the single second terminal device communicates with the first terminal device, the single second terminal device may communicate with the first terminal device via unicast, multicast, or other communication methods.

[0076] In some other embodiments, there may be multiple second terminal devices, and each of the multiple second terminal devices may communicate with the first terminal device, or may not communicate with the first terminal device.

[0077] In an embodiment of the present application, 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, thereby ensuring continuous transmission over the entire COT.

[0078] In some embodiments, the COT can be divided into time units, that is, the COT can include multiple time units. Here, the time length refers to the number of time units. In some embodiments, the time unit can be a time slot, that is, one time unit represents one time slot. In other embodiments, the time unit can be a mini time slot, that is, one time unit represents one mini time slot.

[0079] For example, assuming that there is only one second terminal device and the COT includes N time slots, the COT time allocation indication information indicates that the time length for the first terminal device is N1, and the time length allocated to the single second terminal device is N2; the sum of N1 and N2 is equal to N.

[0080] For example, assume there are multiple second terminal devices and the COT includes N time slots. The first terminal device is UE1, and the multiple second terminal devices include UE2 and UE3. In the COT time allocation indication information, the time length for UE1 is N1, the time length allocated to UE2 is N2, and the time length allocated to UE3 is N3; the sum of N1, N2, and N3 equals N.

[0081] In the embodiments of the present application, when there is a single or multiple second terminal devices, in some embodiments, the first terminal device and the second terminal device may not support continuous multi-time unit transmission, the time length used for the first terminal device may be a single time unit, and the time length allocated to the second terminal device may be a single time unit. In other embodiments, 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 may be a single or multiple time units, and the time length allocated to the second terminal device may be a single or multiple time units. In other words, 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 lengths allocated to different second terminal devices may be the same or different.

[0082] In an embodiment of the present application, when the number of second terminal devices is single, in some embodiments, the COT time allocation indication information can be carried in any one 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.

[0083] In some other embodiments, the COT time allocation indication information may be sent by the first terminal device to the second terminal device during a first time of the COT. The first time may be a starting time unit of the COT, i.e., the first time unit in the COT, i.e., the first time slot of the COT, or the first mini slot of the COT.

[0084] In an embodiment of the present application, when there are multiple second terminal devices, the COT time allocation indication information may be sent by the first terminal device to the second terminal device during the first time of the COT. The first time may be the starting time unit of the COT, that is, the first time unit in the COT, that is, the first time slot of the COT, or the first mini slot of the COT.

[0085] In the channel occupancy time sharing method of the embodiment of the present application, 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 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, thereby realizing COT sharing among multiple terminal devices, improving resource utilization, and meeting communication service needs.

[0086] It should be noted that the above-mentioned possible implementation methods can be executed separately or in combination, and the embodiments of the present application are not limited to this.

[0087] See Figure 3 , Figure 3 It should be noted that the channel occupancy time sharing method of the embodiment of the present application can be executed by the first terminal device, which is the terminal device that initiates COT.

[0088] Among them, the channel occupancy time sharing method can be executed alone, or it can be executed in combination with any embodiment in the present application or a possible implementation method in the embodiment, or it can be executed in combination with any technical solution in the related technology.

[0089] like Figure 3 As shown, the channel occupancy time sharing method may include but is not limited to the following steps.

[0090] Step S301: Send COT time allocation indication information to the second terminal device. The COT time allocation indication information is a bit map; each bit in the bit map corresponds one-to-one to each time unit in the COT, and the length of the bit map is the same as the time length in the COT; the value of the bit is used to indicate whether the corresponding time unit is used for the first terminal device or allocated to the second terminal device.

[0091] In some embodiments, the COT can be divided into time units, that is, the COT can include multiple time units. Here, the time length refers to the number of time units. In some embodiments, the time unit can be a time slot, that is, one time unit represents one time slot. In other embodiments, the time unit can be a mini time slot, that is, one time unit represents one mini time slot.

[0092] In the embodiment of the present application, the number of second terminal devices can be single. The single second terminal device can communicate with the first terminal device, or the single second terminal device does not communicate with the first terminal device. When the single second terminal device communicates with the first terminal device, the single second terminal device can communicate with the first terminal device via unicast, multicast, or other communication methods.

[0093] In an embodiment of the present application, the value of each bit in the bitmap may be 0 or 1. In some embodiments, for each bit in the bitmap, when the value of the bit is 0, it indicates that the corresponding time unit is used for the first terminal device; when the value of the bit is 1, it indicates that the corresponding time unit is allocated to the second terminal device.

[0094] In some other embodiments, for each bit in the bitmap, when the value of the bit is 0, it is used to indicate that the corresponding time unit is allocated to the second terminal device; when the value of the bit is 1, it is used to indicate that the corresponding time unit is used for the first terminal device. For example, the COT includes 6 time units, and the bitmap includes 6 bits, such as 111000, which is 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 allocated to the second terminal device.

[0095] In the channel occupancy time sharing method of the embodiment of the present application, the first terminal device sends COT time allocation indication information to the second terminal device, and the COT time allocation indication information is a bit map; each bit in the bit map corresponds one-to-one to each time unit in the COT, and the length of the bit map 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 can share the COT initiated by the first terminal device according to the COT time allocation indication information, thereby realizing COT sharing among multiple terminal devices, improving resource utilization, and meeting communication service needs.

[0096] See Figure 4 , Figure 4 It should be noted that the channel occupancy time sharing method of the embodiment of the present application can be executed by the first terminal device, which is the terminal device that initiates COT.

[0097] Among them, the channel occupancy time sharing method can be executed alone, or it can be executed in combination with any embodiment in the present application or a possible implementation method in the embodiment, or it can be executed in combination with any technical solution in the related technology.

[0098] like Figure 4 As shown, the channel occupancy time sharing method may include but is not limited to the following steps.

[0099] Step S401: Send COT time allocation indication information to the second terminal device. The COT time allocation indication information includes: the time length used for the first terminal device, the time length allocated to the second terminal device, and the starting time position.

[0100] In an embodiment of the present application, 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, thereby ensuring continuous transmission over the entire COT.

[0101] In embodiments of the present application, the COT can be divided into time units, that is, the COT can include multiple time units. The time length refers to the number of time units. In some embodiments, the time unit can be a time slot, that is, one time unit represents one time slot. In other embodiments, the time unit can be a mini-time slot, that is, one time unit represents one mini-time slot. In other words, one time unit represents one bit.

[0102] In the embodiments of the present application, the starting time position for the first terminal device is the position of the starting time unit in the COT, and may not be indicated. For the second terminal device, in some embodiments, the starting time position assigned to the second terminal device may be represented by, for example, a sequence number of a time unit in the COT. In other embodiments, the starting time position assigned to the second terminal device may be represented by an offset of a time unit in the COT relative to the starting time unit in the COT.

[0103] In some embodiments of the present application, there may be a single second terminal device. This single second terminal device may communicate with the first terminal device, or this single second terminal device may not communicate with the first terminal device. In other embodiments, there may be multiple second terminal devices. Each of the multiple second terminal devices may communicate with the first terminal device, or may not communicate with the first terminal device.

[0104] In the channel occupancy time sharing method of the embodiment of the present application, the first terminal device sends COT time allocation indication information to the second terminal device, and the COT time allocation indication information includes: the time length used for the first terminal device, the time length allocated to the second terminal device, and the starting time position, wherein 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 length in the COT; thereby, 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 among multiple terminal devices, improve resource utilization, and meet communication service needs.

[0105] See Figure 5 , Figure 5 It should be noted that the channel occupancy time sharing method of the embodiment of the present application can be executed by the first terminal device, which is the terminal device that initiates COT.

[0106] Among them, the channel occupancy time sharing method can be executed alone, or it can be executed in combination with any embodiment in the present application or a possible implementation method in the embodiment, or it can be executed in combination with any technical solution in the related technology.

[0107] like Figure 5 As shown, the channel occupancy time sharing method may include but is not limited to the following steps.

[0108] Step S501: monitor the reserved resource information of the third terminal device.

[0109] In the embodiment of the present application, the third terminal device may be any terminal device other than 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.

[0110] In an embodiment of the present application, 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 and identification of the third terminal device.

[0111] Step S502: Select a terminal device whose corresponding reserved resource information is within the COT from the third terminal device as the second terminal device, and determine COT time allocation indication information.

[0112] Among them, 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 information based on the time that needs to be allocated to the second terminal device in the COT.

[0113] Step S503: Send COT time allocation indication information to the second terminal device, where 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.

[0114] For a detailed description of step S503, reference may be made to the corresponding description of this step in the above embodiments, and will not be described in detail here.

[0115] In the channel occupancy time sharing method of the embodiment of the present application, the first terminal device monitors the reserved resource information of the third terminal device; selects a terminal device whose corresponding reserved resource information is located in the COT from the third terminal device as the second terminal device, and 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 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, thereby realizing COT sharing among multiple terminal devices, improving resource utilization, and meeting communication service needs.

[0116] See Figure 6 , Figure 6 It is a flow chart 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 of the embodiment of the present application can be executed by the second terminal device, which is a terminal device that shares the channel occupancy time COT. Figure 6As shown, the channel occupancy time sharing method may include but is not limited to the following steps.

[0117] Step S601: Receive COT time allocation indication information from a first terminal device initiating a COT, where the COT time allocation indication information is used to indicate the time allocated to a second terminal device in the COT; the second terminal device shares the COT initiated by the first terminal device.

[0118] In some embodiments of the present application, 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. When the single second terminal device communicates with the first terminal device, the single second terminal device may communicate with the first terminal device via unicast, multicast, or other communication methods.

[0119] In some other embodiments, there may be multiple second terminal devices, and each of the multiple second terminal devices may communicate with the first terminal device, or may not communicate with the first terminal device.

[0120] In an embodiment of the present application, 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, thereby ensuring continuous transmission over the entire COT.

[0121] In some embodiments, the COT can be divided into time units, that is, the COT can include multiple time units. The time length refers to the number of time units. In some embodiments, the time unit can be a time slot, that is, one time unit represents one time slot. In other embodiments, the time unit can be a mini-time slot, that is, one time unit represents one mini-time slot. In other words, one time unit represents one bit.

[0122] For example, assuming that there is only one second terminal device and the COT includes N time slots, the COT time allocation indication information indicates that the time length for the first terminal device is N1, and the time length allocated to the single second terminal device is N2; the sum of N1 and N2 is equal to N.

[0123] For example, assume there are multiple second terminal devices and the COT includes N time slots. The first terminal device is UE1, and the multiple second terminal devices include UE2 and UE3. In the COT time allocation indication information, the time length for UE1 is N1, the time length allocated to UE2 is N2, and the time length allocated to UE3 is N3; the sum of N1, N2, and N3 equals N.

[0124] In the embodiments of the present application, when there is a single or multiple second terminal devices, in some embodiments, the first terminal device and the second terminal device may not support continuous multi-time unit transmission, the time length used for the first terminal device may be a single time unit, and the time length allocated to the second terminal device may be a single time unit. In other embodiments, 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 may be a single or multiple time units, and the time length allocated to the second terminal device may be a single or multiple time units. In other words, 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 lengths allocated to different second terminal devices may be the same or different.

[0125] In an embodiment of the present application, when the number of second terminal devices is single, in some embodiments, the COT time allocation indication information can be carried in any one 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.

[0126] In other embodiments, the process of the second terminal device executing step S601 can, for example, be 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 starting time unit of the COT, that is, the first time slot of the COT, or the first mini slot of the COT.

[0127] In an embodiment of the present application, when there are multiple second terminal devices, the process of the second terminal device executing step S601 may, for example, be 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 starting time unit of the COT, that is, the first time slot of the COT, or the first mini slot of the COT.

[0128] In the channel occupancy time sharing method of the embodiment of the present application, the second terminal device receives the COT time allocation indication information of the first terminal device that initiates the COT, 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 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, thereby realizing COT sharing among multiple terminal devices, improving resource utilization, and meeting communication service needs.

[0129] It should be noted that the above-mentioned possible implementation methods can be executed separately or in combination, and the embodiments of the present application are not limited to this.

[0130] See Figure 7 , Figure 7 It should be noted that the channel occupancy time sharing method of the embodiment of the present application can be executed by the second terminal device, which is a terminal device that shares the channel occupancy time COT.

[0131] Among them, the channel occupancy time sharing method can be executed alone, or it can be executed in combination with any embodiment in the present application or a possible implementation method in the embodiment, or it can be executed in combination with any technical solution in the related technology.

[0132] like Figure 7 As shown, the channel occupancy time sharing method may include but is not limited to the following steps.

[0133] Step S701, receiving COT time allocation indication information of the first terminal device initiating the COT, where the COT time allocation indication information is a bit map; each bit in the bit map corresponds one-to-one to each time unit in the COT, and the length of the bit map is the same as the time length in the COT; the value of the bit is used to indicate whether the corresponding time unit is used for the first terminal device or allocated to the second terminal device.

[0134] In some embodiments, the COT can be divided into time units, that is, the COT can include multiple time units. The time length refers to the number of time units. In some embodiments, the time unit can be a time slot, that is, one time unit represents one time slot. In other embodiments, the time unit can be a mini-time slot, that is, one time unit represents one mini-time slot. In other words, one time unit represents one bit.

[0135] In the embodiment of the present application, the number of second terminal devices can be single. The single second terminal device can communicate with the first terminal device, or the single second terminal device does not communicate with the first terminal device. When the single second terminal device communicates with the first terminal device, the single second terminal device can communicate with the first terminal device via unicast, multicast, or other communication methods.

[0136] In an embodiment of the present application, the value of each bit in the bitmap may be 0 or 1. In some embodiments, for each bit in the bitmap, when the value of the bit is 0, it indicates that the corresponding time unit is used for the first terminal device; when the value of the bit is 1, it indicates that the corresponding time unit is allocated to the second terminal device.

[0137] In some other embodiments, for each bit in the bitmap, when the value of the bit is 0, it is used to indicate that the corresponding time unit is allocated to the second terminal device; when the value of the bit is 1, it is used to indicate that the corresponding time unit is used for the first terminal device. For example, the COT includes 6 time units, and the bitmap includes 6 bits, such as 111000, which is 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 allocated to the second terminal device.

[0138] In the channel occupancy time sharing method of the embodiment of the present application, the second terminal device receives the COT time allocation indication information of the first terminal device initiating the COT, and the COT time allocation indication information is a bit map; each bit in the bit map corresponds one-to-one to each time unit in the COT, and the length of the bit map 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 can share the COT initiated by the first terminal device according to the COT time allocation indication information, thereby realizing COT sharing among multiple terminal devices, improving resource utilization, and meeting communication service needs.

[0139] See Figure 8 , Figure 8 It should be noted that the channel occupancy time sharing method of the embodiment of the present application can be executed by the second terminal device, which is a terminal device that shares the channel occupancy time COT.

[0140] Among them, the channel occupancy time sharing method can be executed alone, or it can be executed in combination with any embodiment in the present application or a possible implementation method in the embodiment, or it can be executed in combination with any technical solution in the related technology.

[0141] like Figure 8 As shown, the channel occupancy time sharing method may include but is not limited to the following steps.

[0142] Step S801: Receive COT time allocation indication information from a first terminal device that initiates COT. The COT time allocation indication information includes: a time length for the first terminal device, a time length allocated to a second terminal device, and a start time position.

[0143] In an embodiment of the present application, 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, thereby ensuring continuous transmission over the entire COT.

[0144] In embodiments of the present application, the COT can be divided into time units, that is, the COT can include multiple time units. The time length refers to the number of time units. In some embodiments, the time unit can be a time slot, that is, one time unit represents one time slot. In other embodiments, the time unit can be a mini-time slot, that is, one time unit represents one mini-time slot. In other words, one time unit represents one bit.

[0145] In the embodiments of the present application, the starting time position for the first terminal device is the position of the starting time unit in the COT, and may not be indicated. For the second terminal device, in some embodiments, the starting time position assigned to the second terminal device may be represented by, for example, a sequence number of a time unit in the COT. In other embodiments, the starting time position assigned to the second terminal device may be represented by an offset of a time unit in the COT relative to the starting time unit in the COT.

[0146] In some embodiments of the present application, there may be a single second terminal device. This single second terminal device may communicate with the first terminal device, or this single second terminal device may not communicate with the first terminal device. In other embodiments, there may be multiple second terminal devices. Each of the multiple second terminal devices may communicate with the first terminal device, or may not communicate with the first terminal device.

[0147] In the channel occupancy time sharing method of the embodiment of the present application, the second terminal device receives the COT time allocation indication information of the first terminal device initiating the COT, and the COT time allocation indication information includes: the time length used for the first terminal device, the time length allocated to the second terminal device, and the starting time position, wherein 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; thereby, 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 among multiple terminal devices, improve resource utilization, and meet communication service needs.

[0148] See Figure 9 , Figure 9It should be noted that the channel occupancy time sharing method of the embodiment of the present application can be executed by the second terminal device, which is a terminal device that shares the channel occupancy time COT.

[0149] Among them, the channel occupancy time sharing method can be executed alone, or it can be executed in combination with any embodiment in the present application or a possible implementation method in the embodiment, or it can be executed in combination with any technical solution in the related technology.

[0150] like Figure 9 As shown, the channel occupancy time sharing method may include but is not limited to the following steps.

[0151] Step S901: Receive COT time allocation indication information of a first terminal device initiating a COT, where the COT time allocation indication information is used to indicate the time allocated to a second terminal device in the COT; the second terminal device shares the COT initiated by the first terminal device.

[0152] For a detailed description of step S901, reference may be made to the corresponding description of this step in the above embodiments, and will not be described in detail here.

[0153] 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, repeatedly send channel information in the first remaining time.

[0154] In an embodiment of the present application, the time allocated to the second terminal device is entirely used to send channel information, which may mean that the time allocated to the second terminal device is entirely 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 (PSFCH) information.

[0155] The existence of a first remaining time during which channel information is not transmitted in the time allocated to the second terminal device means that the length of the time allocated to the second terminal device is greater than the length of the time during which the second terminal device transmits channel information. When the length of the time allocated to the second terminal device is equal to the length of the time during which the second terminal device transmits channel information, there is no first remaining time during which channel information is not transmitted, that is, there is no remaining time. The repeatedly transmitted channel information may be, for example, PSCCH information and / or PSSCH information.

[0156] Among them, such as Figure 10 The figure shows a first allocation diagram of COT when the number of second terminal devices is only one. Figure 10 In the COT, the number of time units, i.e., slots, is 6, namely slot 1, slot 2, slot 3, slot 4, slot 5, and slot 6. Slots 1 to 3 are used for the first terminal device, while slots 4 to 6 are allocated to the second terminal device.

[0157] Among them, among slots 4 to 6 allocated to the second terminal device, the second terminal device can complete the transmission of channel information using slots 4 to 5, and the second terminal device can repeat the transmission of channel information in slot 6. In addition, when there is a PSFCH information transmission time of the first terminal device in slot 6, the first terminal device can also transmit PSFCH information in slot 6.

[0158] Among them, such as Figure 11 As shown, it is a first allocation diagram of COT when there are multiple second terminal devices. Figure 11 In the COT, there are six time units, i.e., slots, in order: slot 1, slot 2, slot 3, slot 4, slot 5, and slot 6. Slots 1 to 2 are used for a first terminal device (e.g., UE 1); slots 3 to 4 are allocated to a second terminal device (e.g., UE 2); and slots 5 to 6 are allocated to another second terminal device (e.g., UE 3).

[0159] Among slots 5 and 6 allocated to UE3, UE3 can use slot 5 to complete the transmission of channel information, and then UE3 can repeat the transmission of channel information in slot 6. In addition, if another terminal device has a PSFCH information transmission time in slot 6, the other terminal device can also transmit PSFCH information in slot 6. The other terminal device can be, for example, UE1 or UE2.

[0160] Step S903: When all the time allocated to the second terminal device is used to send channel information, and there is a second remaining time in the time allocated to the second terminal device in which channel information is not sent, and the time allocated to the second terminal device includes the last time unit in the COT, stop sending channel information in the second remaining time.

[0161] Among them, such as Figure 12 The figure shows a second allocation diagram of COT when the number of second terminal devices is only one. Figure 12 In the COT, the number of time units, i.e., slots, is 6, namely slot 1, slot 2, slot 3, slot 4, slot 5, and slot 6. Slots 1 to 3 are used for the first terminal device, while slots 4 to 6 are allocated to the second terminal device.

[0162] Among them, in slots 4 to 6 allocated to the second terminal device, the second terminal device can use slots 4 to 5 to complete the sending of channel information. When slot 6 is the last time unit in COT, that is, the last time slot, the second terminal device can stop sending channel information in slot 6.

[0163] 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 the part of the time used to send channel information, the extended cyclic prefix information is sent in the third remaining time.

[0164] Step S905: When there is a PSFCH information sending time for the second terminal device in the second time of the COT, send the PSFCH information in the PSFCH information sending time; wherein the second time is the time used for the first terminal device, or the time allocated to other second terminal devices other than the second terminal device.

[0165] Among them, such as Figure 13 As shown, it is a second allocation diagram of COT when the number of second terminal devices is multiple. Figure 13 In the COT, there are six time units, i.e., slots, in order: slot 1, slot 2, slot 3, slot 4, slot 5, and slot 6. Slots 1 to 2 are used for a first terminal device (e.g., UE 1); slots 3 to 4 are allocated to a second terminal device (e.g., UE 2); and slots 5 to 6 are allocated to another second terminal device (e.g., UE 3).

[0166] Among them, among slots 5 to 6 allocated to UE3, there is a PSFCH information sending time of UE2 in slot 6, so UE2 can reuse the PSFCH information sending time in slot 6 to send PSFCH information.

[0167] It should be noted that each of the above steps S902 to S905 is a separate step, that is, only one step or multiple steps can be executed. There is no order or association between the steps, and they can be executed independently.

[0168] According to the channel occupancy time sharing method of the embodiment of the present application, the second terminal device receives the COT time allocation indication information from the first terminal device that initiates the COT, 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 COT initiated by the first terminal device; when there is remaining time in the allocated time, it is selected to repeat sending channel information, stop sending channel information, or send extended cyclic prefix information according to the situation; when the PSFCH information sending time is within the time allocated to other terminal devices, the time is reused to send PSFCH information, thereby realizing COT sharing among multiple terminal devices, improving resource utilization, and meeting communication service needs.

[0169] In the above embodiments of the present disclosure, the methods provided in the embodiments of the present disclosure are described from the perspectives of a first terminal device and a second terminal device, respectively. To implement the various functions of the methods provided in the above embodiments of the present disclosure, the first terminal device and the second terminal device may include hardware structures and software modules, and implement the aforementioned functions in the form of hardware structures, software modules, or hardware structures and software modules. Certain of the aforementioned functions may be implemented in the form of hardware structures, software modules, or hardware structures and software modules.

[0170] See Figure 14 , Figure 14 This is a schematic diagram of the structure of a first terminal device 140 provided in an embodiment of the present application, wherein the first terminal device is a terminal device that initiates COT.

[0171] Figure 14 The first terminal device 140 shown includes a transceiver unit 1401, which is used to send COT time allocation indication information to the second terminal device, where 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.

[0172] In one embodiment, 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.

[0173] In one embodiment, the number of the second terminal device is only one.

[0174] In one embodiment, 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 medium access control element MAC CE information.

[0175] In one embodiment, there are multiple second terminal devices.

[0176] In one embodiment, the transceiver unit 1401 is specifically used 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 starting time unit of the COT, that is, the first time slot of the COT, or the first mini slot of the COT.

[0177] In one embodiment, the COT time allocation indication information is a bit map; each bit in the bit map corresponds one-to-one to each time unit in the COT, and the length of the bit map 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.

[0178] In one embodiment, the COT time allocation indication information includes: a time length for the first terminal device, a time length allocated to the second terminal device, and a starting time position.

[0179] In one embodiment, the first terminal device and the second terminal device do not support continuous multi-time unit transmission, and the time length used for the first terminal device and the time length allocated to the second terminal device are a single time unit; or, the first terminal device and the second terminal device 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 a single or multiple time units.

[0180] In one embodiment, the first terminal device also includes: a processing unit 1402, which is used to monitor the reserved resource information of the third terminal device; select a terminal device whose corresponding reserved resource information is located within the COT from the third terminal device as the second terminal device, and determine the COT time allocation indication information.

[0181] See Figure 15 , Figure 15 1 is a schematic structural diagram of a second terminal device 150 provided in an embodiment of the present application. The second terminal device is a terminal device that shares a channel occupancy time (COT). The second terminal device 150 includes a transceiver unit 1501 that receives COT time allocation indication information from a first terminal device initiating a COT, the COT time allocation indication information being used to indicate the time allocated to the second terminal device in the COT; and the second terminal device shares the COT initiated by the first terminal device.

[0182] In one embodiment, 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.

[0183] In one embodiment, the number of the second terminal device is only one.

[0184] In one embodiment, 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 medium access control element MAC CE information.

[0185] In one embodiment, there are multiple second terminal devices.

[0186] In one embodiment, the transceiver unit 1501 is specifically used 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 starting time unit of the COT, that is, the first time slot of the COT, or the first mini slot (micro time slot) of the COT.

[0187] In one embodiment, the COT time allocation indication information is a bit map; wherein, each bit in the bit map corresponds one-to-one to each time unit in the COT, and the length of the bit map 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.

[0188] In one embodiment, the COT time allocation indication information includes: a time length for the first terminal device, a time length allocated to the second terminal device, and a starting time position.

[0189] In one embodiment, the first terminal device and the second terminal device do not support continuous multi-time unit transmission, and the time length used for the first terminal device and the time length allocated to the second terminal device are a single time unit; or, the first terminal device and the second terminal device 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 a single or multiple time units.

[0190] In one embodiment, the time allocated to the second terminal device in the COT is used in whole or in part 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.

[0191] In one embodiment, the time allocated to the second terminal device is all used to send channel information, and the transceiver unit 1501 is further used to repeatedly send the channel information during the first remaining time when there is a first remaining time in the time allocated to the second terminal device in which the channel information is not sent; or to stop sending the channel information during the second remaining time when there is a second remaining time in the time allocated to the second terminal device in which the channel information is not sent and the time allocated to the second terminal device includes the last time unit in the COT.

[0192] In one embodiment, the time portion allocated to the second terminal device is used to send channel information, and the transceiver unit 1501 is further used to send extended cyclic prefix information in the third remaining time when there is a third remaining time in the partial time used to send the channel information during which the channel information is not sent.

[0193] In one embodiment, the transceiver unit 1501 is further used to send the PSFCH information during the PSFCH information sending time when there is a PSFCH information sending time for the second terminal device in the second time of the COT; wherein the second time is the time used for the first terminal device, or is the time slot allocated to other second terminal devices other than the second terminal device.

[0194] See Figure 16 , Figure 161 is a schematic diagram of the structure of a communication device 160 provided in an embodiment of the present application. Communication device 160 can be a terminal device (such as the first terminal device or the second terminal device in the aforementioned method embodiment), or it can be a chip, chip system, or processor that supports the terminal device to implement the aforementioned method. This device can be used to implement the method described in the aforementioned method embodiment. For details, please refer to the description of the aforementioned method embodiment.

[0195] The communication device 160 may include one or more processors 1601. The processor 1601 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute computer programs, and process computer program data.

[0196] Optionally, the communication device 160 may further include one or more memories 1602, on which a computer program 1604 may be stored. The processor 1601 executes the computer program 1604 to cause the communication device 160 to perform the method described in the above method embodiment. Optionally, the memory 1602 may also store data. The communication device 160 and the memory 1602 may be provided separately or integrated together.

[0197] Optionally, the communication device 160 may further include a transceiver 1605 and an antenna 1606. The transceiver 1605 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is configured to implement transceiver functions. The transceiver 1605 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, etc., and is configured to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is configured to implement a transmitting function.

[0198] Optionally, the communication device 160 may further include one or more interface circuits 1607. The interface circuit 1607 is configured to receive code instructions and transmit the code instructions to the processor 1601. The processor 1601 executes the code instructions to enable the communication device 160 to execute the method described in the above method embodiment.

[0199] The communication device 160 is a first terminal device: the transceiver 1605 is used to perform Figure 2 Step S201 in Figure 3 Step S301 in Figure 4 Step S401 in Figure 5 Processor 1601 is used to execute step S503. Figure 5 Step S501 and step S502 in .

[0200] The communication device 160 is a second terminal device: the transceiver 1605 is used to perform Figure 6 Step S601 in Figure 7 Step S701 in Figure 8 Step S801 in Figure 9 Steps S901, S902, S903, S904 and S905 in .

[0201] In one implementation, processor 1601 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and transmitting functions may be separate or integrated. The transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or may be used for transmitting or delivering signals.

[0202] In one implementation, processor 1601 may store a computer program 1604. Computer program 1604, when executed on processor 1601, enables communication device 160 to perform the method described in the above method embodiment. Computer program 1604 may be embedded in processor 1601, in which case processor 1601 may be implemented by hardware.

[0203] In one implementation, the communication device 160 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiments. The processor and transceiver described in this application can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, 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 (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0204] 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 above 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 not be limited thereto. Figure 16 The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0205] (1) An independent integrated circuit (IC), or chip, or chip system or subsystem;

[0206] (2) a collection of one or more ICs, optionally including a storage component for storing data and computer programs;

[0207] (3) ASIC, such as modem;

[0208] (4) Modules that can be embedded in other devices;

[0209] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0210] (6)Others, etc.

[0211] For the case where the communication device may be a chip or a chip system, see Figure 17 Schematic diagram of the chip structure shown. Figure 17 The chip shown includes a processor 1701 and an interface 1702. There may be one or more processors 1701 and there may be more than one interface 1702.

[0212] Optionally, the chip further includes a memory 1703, which is used to store necessary computer programs and data.

[0213] Those skilled in the art will also appreciate that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the described functions for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present application.

[0214] The embodiment of the present application also provides a communication system, which includes the aforementioned Figure 14 The first terminal device in the embodiment, or the system includes the aforementioned Figure 15The second terminal device in the embodiment.

[0215] The present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

[0216] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0217] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can 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. When the computer program is loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0218] Those skilled in the art will understand that the various numerical numbers such as first and second involved in this application are only for the convenience of description and are not used to limit the scope of the embodiments of this application, and also indicate the order of precedence.

[0219] In this application, at least one can also be described as one or more, and multiple can be two, three, four or more, which is not limited in this application. In the embodiments of this application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", and there is no order of precedence or size between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0220] The correspondences shown in the tables in this application can be configured or predefined. The values ​​of the information in each table are examples only and can be configured to other values, which are not limited by this application. When configuring the correspondence between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables in this application, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values ​​or representations of the parameters can also use other values ​​or representations that can be understood by the communication device. When implementing the above tables, 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, etc.

[0221] The predefined in this application may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0222] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0223] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0224] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A method for sharing channel occupancy time, characterized in that: The method is executed by a first terminal device that initiates a channel occupancy time (COT), and the method includes: Sending COT time allocation indication information to a second terminal device, where 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; and at least one of the second terminal devices is not in communication with the first terminal device; There are multiple second terminal devices, and 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 a first time of the COT; the first time is a starting time unit of the COT; the starting time unit is a time slot or a mini-time slot; The method further includes: monitoring first-stage SCI information of a third terminal device; decoding the first-stage SCI information to obtain reserved resource information of the third terminal device; selecting a terminal device whose corresponding reserved resource information is within the COT from the third terminal device as the second terminal device; determining, based on the reserved resource information of the second terminal device, a time in the COT that needs to be allocated to the second terminal device; and determining COT time allocation indication information based on the second terminal device and the time in the COT that needs to be allocated to the second terminal device; 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; and the time allocated to the first terminal device and the second terminal device in the COT does not overlap; When there is a physical side feedback channel PSFCH information transmission time in the second time in the COT, the PSFCH information transmission time in the second time is used to send the PSFCH information; the second time is a time used for the first terminal device, or a time slot allocated to other second terminal devices other than the second terminal device; the PSFCH information is the PSFCH information of the first terminal device or the second terminal device; The time allocated to the first terminal device and the second terminal device in the COT is used for transmission, realizing continuous transmission on the COT; the information transmitted during the remaining time of the time includes repeatedly sent channel information or extended cyclic prefix information.

2. The method according to claim 1, characterized in that The COT time allocation indication information includes: the time length used for the first terminal device, the time length allocated to the second terminal device, and the starting time position.

3. The method according to claim 2, characterized in that The first terminal device and the second terminal device do not support continuous multi-time unit transmission; the time length used for the first terminal device and the time length allocated to the second terminal device are a single time unit; or The first terminal device and the second terminal device 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 a single or multiple time units.

4. A method for sharing channel occupancy time, characterized in that: The method is performed by a second terminal device sharing a channel occupation time COT, and the method includes: receiving COT time allocation indication information from a first terminal device initiating a COT, the COT time allocation indication information being used to indicate a time allocated for the second terminal device in the COT; the second terminal devices sharing the COT initiated by the first terminal device; at least one of the second terminal devices not communicating with the first terminal device; first-stage SCI information carrying reserved resource information of the second terminal device being monitored by the first terminal device, and the reserved resource information of the second terminal device being located within the COT; the COT time allocation indication information being determined in combination with a time within the COT that needs to be allocated for the second terminal device; the time being determined based on the reserved resource information of the second terminal device; There are multiple second terminal devices, and receiving the COT time allocation indication information from the first terminal device initiating the COT includes: receiving the COT time allocation indication information sent by the first terminal device in a first time of the COT; the first time is a starting time unit of the COT; the starting time unit is a time slot or a mini-time slot; 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; and the time allocated to the first terminal device and the second terminal device in the COT does not overlap; When there is a physical side feedback channel PSFCH information transmission time in the second time in the COT, the PSFCH information transmission time in the second time is used to send the PSFCH information; the second time is a time used for the first terminal device, or a time slot allocated to other second terminal devices other than the second terminal device; the PSFCH information is the PSFCH information of the first terminal device or the second terminal device; The time allocated to the first terminal device and the second terminal device in the COT is used for transmission, realizing continuous transmission on the COT; the information transmitted during the remaining time of the time includes repeatedly sent channel information or extended cyclic prefix information.

5. The method according to claim 4, characterized in that The COT time allocation indication information includes: the time length used for the first terminal device, the time length allocated to the second terminal device, and the starting time position.

6. The method according to claim 5, characterized in that The first terminal device and the second terminal device do not support continuous multi-time unit transmission, and the time length used for the first terminal device and the time length allocated to the second terminal device are a single time unit; or The first terminal device and the second terminal device 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 a single or multiple time units.

7. The method according to claim 4, characterized in that The time allocated to the second terminal device in the COT is used entirely or partially for sending channel information; 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.

8. The method according to claim 7, characterized in that The time allocated to the second terminal device is entirely used for sending channel information, and the method further includes: If there is a first remaining time during which the channel information is not sent in the time allocated to the second terminal device, repeatedly sending the channel information during the first remaining time; or, If there is a second remaining time in which the channel information is not sent in the time allocated to the second terminal device, and the time allocated to the second terminal device includes the last time unit in the COT, the channel information is stopped from being sent in the second remaining time.

9. The method according to claim 7, characterized in that The time portion allocated to the second terminal device is used to send channel information, and the method further includes: In a case where there is a third remaining time in which the channel information is not transmitted in the partial time for transmitting the channel information, the extended cyclic prefix information is transmitted during the third remaining time.

10. A first terminal device, characterized in that: The first terminal device initiates a channel occupancy time COT, and the first terminal device includes: a transceiver unit, configured to send COT time allocation indication information to a second terminal device, wherein 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; and at least one of the second terminal devices is not in communication with the first terminal device; When there are multiple second terminal devices, the transceiver unit is specifically configured to send the COT time allocation indication information to the second terminal device in a first time of the COT; the first time is a starting time unit of the COT; the starting time unit is a time slot or a mini-time slot; The second terminal device further includes: a processing unit configured to monitor first-stage SCI information of a third terminal device; decode the first-stage SCI information to obtain reserved resource information of the third terminal device; select a terminal device whose corresponding reserved resource information is within the COT from the third terminal device as the second terminal device; determine, based on the reserved resource information of the second terminal device, a time that needs to be allocated to the second terminal device in the COT; and determine, based on the second terminal device and the time that needs to be allocated to the second terminal device in the COT, the COT time allocation indication information; 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; and the time allocated to the first terminal device and the second terminal device in the COT does not overlap; When there is a physical side feedback channel PSFCH information transmission time in the second time in the COT, the PSFCH information transmission time in the second time is used to send the PSFCH information; the second time is a time used for the first terminal device, or a time slot allocated to other second terminal devices other than the second terminal device; the PSFCH information is the PSFCH information of the first terminal device or the second terminal device; The time allocated to the first terminal device and the second terminal device in the COT is used for transmission, realizing continuous transmission on the COT; the information transmitted during the remaining time of the time includes repeatedly sent channel information or extended cyclic prefix information.

11. A second terminal device, characterized in that: The second terminal device shares a channel occupancy time COT, and the second terminal device includes: A transceiver unit, configured to receive COT time allocation indication information from a first terminal device initiating a COT, the COT time allocation indication information being used to indicate a time allocated for the second terminal device in the COT; the second terminal devices share the COT initiated by the first terminal device; at least one of the second terminal devices is not in communication with the first terminal device; the first-stage SCI information carrying the reserved resource information of the second terminal device is monitored by the first terminal device, and the reserved resource information of the second terminal device is located in the COT; the COT time allocation indication information is determined in combination with a time that needs to be allocated to the second terminal device in the COT; the time is determined based on the reserved resource information of the second terminal device; When there are multiple second terminal devices, the transceiver unit is specifically configured to receive COT time allocation indication information from the first terminal device that initiates the COT, including: receiving the COT time allocation indication information sent by the first terminal device in a first time of the COT; the first time is a starting time unit of the COT; the starting time unit is a time slot or a micro time slot; 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; and the time allocated to the first terminal device and the second terminal device in the COT does not overlap; When there is a physical side feedback channel PSFCH information transmission time in the second time in the COT, the PSFCH information transmission time in the second time is used to send the PSFCH information; the second time is a time used for the first terminal device, or a time slot allocated to other second terminal devices other than the second terminal device; the PSFCH information is the PSFCH information of the first terminal device or the second terminal device; The time allocated to the first terminal device and the second terminal device in the COT is used for transmission, realizing continuous transmission on the COT; the information transmitted during the remaining time of the time includes repeatedly sent channel information or extended cyclic prefix information.

12. A communication device, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device performs the method according to any one of claims 1 to 3.

13. A communication device, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device performs the method according to any one of claims 4 to 9.

14. A communication device, characterized in that: include: processor and interface circuits; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method according to any one of claims 1 to 3.

15. A communication device, characterized in that: include: processor and interface circuits; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method according to any one of claims 4 to 9. 16 . A computer-readable storage medium storing instructions, which, when executed, enable the method according to claim 1 to be implemented.

17. A computer-readable storage medium storing instructions, which, when executed, enable the method according to any one of claims 4 to 9 to be implemented.

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