WO2024051682A1 - 资源确定的方法和装置 - Google Patents

资源确定的方法和装置 Download PDF

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Publication number
WO2024051682A1
WO2024051682A1 PCT/CN2023/116977 CN2023116977W WO2024051682A1 WO 2024051682 A1 WO2024051682 A1 WO 2024051682A1 CN 2023116977 W CN2023116977 W CN 2023116977W WO 2024051682 A1 WO2024051682 A1 WO 2024051682A1
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terminal device
resource
cot
resources
information
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PCT/CN2023/116977
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English (en)
French (fr)
Inventor
黎超
薛丽霞
刘云
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华为技术有限公司
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Publication of WO2024051682A1 publication Critical patent/WO2024051682A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation

Definitions

  • the present application relates to the field of communication technology, and in particular, to a method and device for resource determination.
  • spectrum resources can be divided into licensed spectrum and unlicensed spectrum.
  • SL sidelink
  • terminal devices can use spectrum resources based on competition. Therefore, when performing SL communications on unlicensed spectrum, how the terminal device determines candidate resources is an issue that currently needs to be considered.
  • the present application provides a resource determination method and device for a first terminal device to determine candidate resources.
  • a resource determination method is provided.
  • the method can be executed by the first terminal device or by a component (such as a chip or circuit) of the first terminal device.
  • a component such as a chip or circuit
  • the first terminal device is used below. Take the execution as an example to illustrate.
  • the method includes: the first terminal device receives first information in the sensing window, the first information indicates the first channel occupancy time COT of the second terminal device, and the first COT includes resources occupied by the first feedback channel; the first terminal device The reserved resources of the first data associated with the first feedback channel are excluded from the candidate resource set in the selection window, and the first terminal device excludes the reserved resources of the first feedback channel from the candidate resource set.
  • the first terminal device excludes both the reserved resources of the first data and the reserved resources of the first feedback channel associated with the first data from the candidate resource set in the selection window, so that the first terminal device is used to transmit the first data.
  • the resources of data feedback information are retained, thereby ensuring the feedback performance of the first data.
  • the method provided in the first aspect can also be described as: when the candidate resource set of the first terminal device in the selection window excludes the reserved resources of the first data associated with the first feedback resource Under the circumstances, the first terminal device excludes the reserved resources of the first feedback resource in the candidate resource set; in the case where the first terminal device retains the reserved resources of the first data associated with the first feedback resource in the candidate resource set in the selection window , the first terminal device reserves the reserved resource of the first feedback resource in the candidate resource set.
  • the first data is located in the first COT and/or the second COT, and the second COT is before the first COT.
  • the solution provided by this application is applicable to both the scenario where the first data is located in the first COT and the scenario where the first data is not located in the first COT.
  • the first terminal device excludes the reserved resources of the first data associated with the first feedback channel from the candidate resource set in the selection window, and, the first terminal device Excluding the reserved resources of the first feedback channel from the candidate resource set includes: when the first condition is met, the first terminal device excludes the reserved resources of the first feedback channel from the candidate resource set, and, the first terminal device Exclude the reserved resources of the first feedback resource from the candidate resource set; the first condition includes: the first terminal device obtains the reservation period associated with the second data; the reference signal received power RSRP of the second data is greater than or equal to the first threshold value, where the second data is the first data, or the second data and the first data are located on the same COT.
  • the first terminal device obtains the reservation period associated with the second data, which can also be described as: the information indicating the second data includes the reservation period, or the second data has corresponding reserved resources, or the second data
  • the data is periodic data.
  • the first terminal device can exclude the reserved resources of the first feedback channel only when the first condition is met, so that the reserved resources of the first feedback channel can be used to transmit feedback information of the first data. , improve the transmission of the second terminal device The overall performance of a data.
  • the first terminal device may not exclude the reserved resources of the first feedback channel when the first condition is not satisfied, so that the first terminal device can use the reserved resources of the first feedback channel for transmission.
  • the number of candidate resources available to the first terminal device is increased, and the transmission performance of the first terminal device is improved.
  • the first condition further includes: the reserved resources of the second data intersect with the candidate resource set in the resource selection window.
  • the first terminal device excludes the reserved resources of the first feedback channel from the candidate resource set, including: the first terminal device excludes the reserved resources of the first feedback channel from the candidate resource set. Exclude part or all of the frequency domain resources on the first time unit, wherein the reserved resources of the first feedback channel are located in the first time unit, and the part or all of the frequency domain resources include the first feedback channel The collection of resource blocks where reserved resources are located.
  • the first terminal device determines that when the candidate resource set excludes the reserved resources of the first feedback channel, it can directly exclude the resources in the first time unit where the reserved resources of the first feedback channel are located, thereby further Improve the feedback performance of first data.
  • the reserved resources of the first feedback channel include reserved resources for feeding back data within the shared resources of the first COT.
  • the method further includes: the first terminal device excludes, from the candidate resource set, the predetermined data on the first COT located before the first time unit where the first feedback channel is located. Reserve resources.
  • the first terminal device when the first terminal device excludes the reserved resources of the first feedback channel from the candidate resource set, due to the transmission opportunity on the first time unit where the reserved resources of the first feedback channel are located, it needs to be carried on the entire Successful transmission can only occur within the first COT. Therefore, if the reserved resources located before the first time unit on the first COT are excluded, it can at least ensure that the second terminal device successfully transmits on the first time unit, thereby improving transmission performance.
  • the first terminal device excludes the reserved resources on the first COT located before the time unit where the first feedback channel is located from the candidate resource set, including: In the case of two conditions, the first terminal device excludes the reserved resources on the first COT located before the time unit where the first feedback channel is located in the candidate resource set.
  • the second condition includes one or more of the following: first feedback channel The transmission priority of the bearer is greater than or equal to the first threshold value, or the first terminal device is a receiving device corresponding to the first feedback channel.
  • the first terminal device excludes the reserved resources on the first COT located before the first time unit in the candidate resource set, This can further ensure the success rate of transmission by the second terminal device in the first time unit.
  • the method further includes: the first terminal device obtains second information, the second information instructs the first terminal device to determine the candidate resource based on the COT, and the second information comes from the second The terminal device or network device, or the second information is predefined information or preconfigured information.
  • the first terminal device may determine the candidate resource based on the COT according to the obtained second information.
  • the reserved resources for the first data are based on the frequency domain resources and time domain resources of the first data and the sidelink control information SCI indication corresponding to the first data. Resources determined by the reservation period.
  • the time slot in which the reserved resource corresponding to the first data is located is Among them, q is a positive integer, m is the time slot where the first data is located, and P′ rsvp_RX is the reserved period of the first data or the reserved period of the first COT where the first data is located.
  • the frequency domain resources in the reserved resources corresponding to the first data are the same as the frequency domain resources of the first data.
  • the second aspect provides a method for determining resources.
  • the method can be executed by the first terminal device or by a component (such as a chip or circuit) of the first terminal device.
  • a component such as a chip or circuit
  • the first terminal device is used below. Take the execution as an example to illustrate.
  • the method includes: the first terminal device receives first information in the sensing window, the first information indicates the first channel occupancy time COT of the second terminal device, the reserved resource of the first COT is the first resource, and the first resource The number is N1; the first terminal device excludes the second resource from the candidate resource set in the selection window, the number of the second resource is N2, the second resource includes the first resource, and N2 is greater than N1.
  • the number of resources excluded by the first terminal device in the candidate resource set is greater than the number of reserved resources of the first COT, so that more resources can be reserved for the second terminal device for transmission, improving the efficiency of the second terminal device. transmission performance, reducing the probability of failure to send some data or information to the second terminal device due to resource conflicts.
  • the first terminal device excludes the second resource from the candidate resource set in the selection window, including: the first terminal device determines that the second resource is in the first COT or the first COT.
  • the first terminal device excludes the second resource from the candidate resource set.
  • the first terminal device when the data transmitted on the first COT or the resource pool where the first COT is located enables PSFCH feedback, the first terminal device excludes N2 second resources from the candidate resource set, so that the second terminal device can Reserve more resources than the first resources. These extra resources can be used by the second terminal device to send feedback information of the first COT or other COTs before the first COT, thereby improving the performance of the second terminal device. Transmission performance.
  • N2 is determined based on one or more of the following information: the feedback period corresponding to the first COT, the value of N1, and the number of shared time slots on the first COT. .
  • the value of N2 corresponds to the period corresponding to the first COT, that is, the larger the feedback period corresponding to the first COT, the larger the N2 value, and vice versa, the smaller the N2 is.
  • the value of N2 corresponds to the value of N1.
  • the value of N2 corresponds to the number of shared time slots in the first COT.
  • the first terminal device can determine the value of N2 according to the actual transmission demand on the first COT, which can improve the performance of the second terminal device on the first COT (or other terminal devices on the shared time slot of the first COT).
  • the transmission performance can also improve resource utilization and reduce resource waste.
  • a resource determination method is provided.
  • the method can be executed by the second terminal device or by a component (such as a chip or circuit) of the second terminal device.
  • a component such as a chip or circuit
  • the second terminal device is used below. Take the execution as an example to illustrate.
  • the method includes: the second terminal device determines the third resource according to one or more of the following information: the maximum COT length mCOT corresponding to the channel access priority type CAPC of the second terminal device, the PSFCH resource configured by the second terminal device The number of time units occupied and the number of resources that need to be shared in the COT, where the third resource is the resource reserved by the second terminal device for sending the second data, the third resource includes a fourth resource, and the fourth resource is the second
  • the terminal device sends resources for the second data, the number of third resources is N2, the number of fourth resources is N1, and N2 is greater than N1; the second terminal device sends third information to the first terminal device, and the third information indicates the third resource .
  • the second terminal device reserves more resources than the actual transmission resources, so that the second terminal device has sufficient resources for subsequent transmission (such as transmitting feedback information), thereby improving the transmission performance of the second terminal device.
  • the method before the second terminal device sends the third information to the first terminal device, the method further includes: the second terminal device receives the fourth information, and the fourth information indicates The second terminal device sends third information to the first terminal device.
  • the second terminal device receives the fourth information from the network device.
  • the second terminal device can send the third information to the first terminal device according to the received fourth information, so that the first terminal device can determine the candidate resources according to the reserved resources of the second terminal device, thereby reducing the There is little risk of transmission conflicts between the first terminal device and the second terminal device.
  • the third information directly indicates the third resource, or the third information indicates the fourth resource and the value of N3, where N3 is the difference between N2 and N1.
  • the second terminal device can directly indicate the third resource through the third information, which can save overhead and improve the efficiency of the instruction; or it can also indirectly indicate the third resource through the third information, so that the first terminal device can be configured according to the The value of the fourth resource and N3 can be determined by oneself according to actual needs, which is beneficial to improving resource utilization.
  • the method further includes: the second terminal device sending fifth information to the first terminal device, the fifth information indicating the candidate resources of the first terminal device in the selection window.
  • the number of resources is N2 or N1.
  • the second terminal device can indicate to the first terminal device the number of resources excluded from the candidate resource set through the fifth information, so that the first terminal device can determine the candidate resources according to the fifth information and avoid the first
  • the terminal device cannot determine the number of resources to be excluded, resulting in failure to determine candidate resources, or the determined candidate resources cannot adapt to the transmission needs of the second terminal device (for example, the first terminal device may fail to transmit among the candidate resources determined by itself. conflict with the transmission of the second terminal device).
  • the fourth aspect provides a method for resource determination, which method can be executed by the first terminal device, or can also be performed by the first terminal device.
  • the execution is performed by a component of the device (such as a chip or a circuit).
  • a component of the device such as a chip or a circuit.
  • the following description takes the execution of the first terminal device as an example.
  • the method includes: the first terminal device receives first information in the sensing window, the first information indicates the first COT of the second terminal device, the first COT includes a fifth resource, the fifth resource is used to send data, and the fifth resource
  • the number is N1
  • the reserved resource of the first COT is the sixth resource
  • the number of the sixth resource is N2, and N2 is greater than N1
  • the first terminal device excludes the seventh resource from the candidate resource set in the selection window, and the seventh resource includes Fifth resource or sixth resource.
  • the number of reserved resources (N2) of the first COT is greater than the number of resources (N1) for data transmission on the first COT.
  • the first terminal device can exclude N2 resources or N1 from the candidate resource set according to actual needs. resources, thereby improving resource utilization and reducing the risk of resource conflicts.
  • the method further includes: the first terminal device determines N3.
  • the first terminal device determines N3, including: the first terminal device receives sixth information from the network device or the second terminal device; the first terminal device receives the sixth information from the network device or the second terminal device; The information is determined N3.
  • the network device or the second terminal device may indicate the number of resources excluded by the first terminal device in the candidate resource set through the sixth information, thereby enabling the first terminal device to determine the candidate resources based on the sixth information.
  • the first terminal device determines N3, including: when the fixed bit rate CBR of the first COT is greater than or equal to the fourth threshold value, the first terminal device Determine the value of N3 to be N2, otherwise the first terminal device determines the value of N3 to be N1; or, in the case where the first COT enables hybrid automatic repeat request HARQ, the first terminal device determines the value of N3 to be N2, otherwise The first terminal equipment determines that the value of N3 is N1; or, when the number of PSFCH resources or the PSFCH resource period configured on the first COT is the first value, the first terminal equipment determines that the value of N3 is N2.
  • the first terminal device determines that the value of N3 is N1; or, when the reserved resources of the first COT include shared resources or feedback resources , the first terminal device determines that the value of N3 is N2, otherwise the first terminal device determines that the value of N3 is N1.
  • the first terminal device can use the corresponding method or rule to , determine whether to exclude resources according to N1 or N2, so that from the perspective of the receiving side, the corresponding resources can be excluded in a manner that matches the needs of the second terminal device, so that the second terminal device has enough resources for the next transmission.
  • the resources can be used for transmission, thereby improving the transmission performance of the second terminal device.
  • the fifth aspect provides a method for determining resources.
  • the method can be executed by the first terminal device or by a component (such as a chip or circuit) of the first terminal device.
  • a component such as a chip or circuit
  • the first terminal device is used below. Take the execution as an example to illustrate.
  • the method includes: the first terminal device receives first information in the sensing window, the first information indicating the first channel occupancy time COT of the second terminal device; the first terminal device determines whether to exclude it from the candidate resource set in the selection window
  • the eighth resource is located in the same time unit, and the frequency domain of the eighth resource and the ninth resource are different.
  • the ninth resource is a reserved resource for the first data sent on the first COT.
  • the first terminal device excludes the eighth resource from the candidate resource set, which means that the first terminal device does not send data/information on resources that are frequency-divided with the ninth resource, or that the first terminal device does not perform frequency division on the ninth resource. Multiplexing; the first terminal device does not exclude the eighth resource from the candidate resource set, which means that the first terminal device sends data/information on a resource frequency-divided with the ninth resource, or in other words, the first terminal device sends data/information on the ninth resource Perform frequency division multiplexing.
  • the first terminal device determines whether to perform frequency division multiplexing on the resources reserved for the first data sent on the first COT, thereby improving resource utilization as much as possible.
  • the method further includes: when the third condition is met, the first terminal device determines reserved resources for the first data sent on the first COT; wherein , the third condition includes one or more of the following: the information indicating the first data includes a reservation period, or the information indicating the first COT includes a reservation period; the first terminal device detected in the sensing window The RSRP of the data is greater than or equal to the first threshold value; the first terminal device obtains fourth information, and the fourth information is used to instruct the first terminal device to select candidate resources based on the COT structure.
  • the first terminal device can determine the reserved resources of the first data when certain conditions are met, so as to determine whether to perform frequency division multiplexing on the reserved resources of the first data, thereby improving the efficiency of the first data as much as possible. Resource utilization.
  • the time slot in which the reserved resource of the first data is located is Among them: q is a positive integer, m is the time slot in which the first data is located, and P′ rsvp_RX is the reserved period of the first data or the reserved period of the first COT.
  • the reserved resources of the first data are based on the frequency domain resources of the first data, Time domain resources and resources determined by the reservation period indicated by the sidelink control information SCI corresponding to the first data.
  • the first terminal device determines whether to exclude the eighth resource from the candidate resource set in the selection window, including: when the fifth condition is satisfied, the first terminal device The device determines to exclude the eighth resource from the candidate resource set; the fifth condition includes: the first terminal device is the receiving end device of the second terminal device, and/or the first terminal device obtains the seventh information, and the seventh information indicates the first The terminal device does not perform frequency division multiplexing on the seventh resource, and the seventh information comes from the second terminal device or network device, or the seventh information is predefined information or preconfigured information.
  • the method further includes: if the fifth condition is not met, the first terminal device determines not to exclude the eighth resource from the candidate resource set.
  • frequency division multiplexing between the first terminal device and the second terminal device can be implemented under certain circumstances, thereby improving the utilization efficiency of the entire system resources and enhancing the performance of the entire system.
  • the first terminal device determines whether to exclude the eighth resource from the candidate resource set in the selection window, including: when the sixth condition is satisfied, the first terminal device The device determines that the eighth resource is not excluded from the candidate resource set; the sixth condition includes: the first terminal device is not the receiving end device of the second terminal device, and/or the first terminal device obtains the eighth information, and the eighth information indicates that the eighth resource is not excluded from the candidate resource set.
  • a terminal device performs frequency division multiplexing on the reserved resources of the first data, and the eighth information comes from the second terminal device or network device, or the eighth information is predefined information or preconfigured information.
  • the method further includes: if the sixth condition is not met, the first terminal device determines to exclude the eighth resource from the set of candidate resources.
  • frequency division multiplexing between the first terminal device and the second terminal device can be implemented under certain circumstances, thereby improving the utilization efficiency of the entire system resources and enhancing the performance of the entire system.
  • the sixth condition also includes: the priority of the first data sent on the first COT is higher than the second threshold; or, the priority of the first data sent on the first COT is higher than the second threshold; or, The channel access type of the first data is higher than the third threshold value.
  • the sixth condition also includes: the priority of the first data sent on the first COT is lower than the second threshold; or, the priority of the first data sent on the first COT is lower than the second threshold; or The channel access priority of the first data is lower than the third threshold.
  • the method further includes: the first terminal device using one of the cyclic prefix extension CPEs of the second terminal device in the time slot where the first data is located as the eighth resource. CPE.
  • the first terminal device uses the CPE of the transmission of the second terminal device on the time slot where the first data is located to set the CPE of the candidate resource for frequency division multiplexing, instead of using the first terminal device itself to be transmitted.
  • the CPE associated or determined by the message can reduce the impact on the transmission of the second terminal device.
  • the first terminal device uses one of the cyclic prefix extension CPEs of the second terminal device in the time slot where the first data is located as the CPE of the eighth resource, including:
  • the first terminal device uses the first CPE among the multiple CPEs of the plurality of terminal devices in the second terminal device on the time slot where the first data is located as the CPE of the eighth resource, and the first CPE is greater than or equal to the first threshold. value.
  • the transmission performance of the first terminal device can be improved.
  • the first CPE is the maximum value among the multiple CPEs of multiple terminal devices in the second terminal device on the time slot where the first data is located.
  • the method also includes:
  • the first terminal device reports the eighth resource and the CPE of the first terminal device in the sixth resource to the upper layer of the first terminal device.
  • the problem of CPE alignment can be solved and the impact on LBT caused by the different timing of the second terminal equipment and the first terminal equipment can be avoided.
  • the first data is data sent by the second terminal device, or data sent by other terminal devices on the shared resource on the first COT.
  • the solution provided in the fifth aspect is applicable to the scenario where the first data is data sent by the second terminal device, and is also applicable to the scenario where the first data is data sent by other terminal devices.
  • the synchronization source of the first terminal device and the second terminal device is the same; and/or the synchronization source of the first terminal device and the second terminal device are of the same type; and/or, the first terminal device and the second terminal device synchronize to the same type of synchronization source for the same number of forwarding times.
  • the sixth aspect provides a method for determining resources.
  • the method can be executed by the first terminal device or by a component (such as a chip or circuit) of the first terminal device.
  • a component such as a chip or circuit
  • the first terminal device is used below. Take the execution as an example to illustrate.
  • the method includes: the first terminal device receives first information in the sensing window, the first information indicating the information of the first channel occupancy time COT of the second terminal device; when the first terminal device determines that the eighth condition is met , the first terminal device excludes the reserved resources from the first to the Mth continuous time unit on the first COT from the candidate resource set, where M is a positive integer greater than or equal to 1, and the selection window is located after the sensing window;
  • the eight conditions include: the first to Mth continuous time units on the first COT are used for periodic transmission, and/or the reference signal received power RSRP on the M continuous time units is less than or equal to the sixth threshold value.
  • the first terminal device preferentially excludes the reserved resources of the first M consecutive time units on the first COT from the candidate resource set, which can prevent the transmission of the second terminal device on the first COT from being interrupted in the middle. Improve the transmission performance of the second terminal device.
  • the eighth condition further includes: the priority of the first data transmitted on the first M consecutive time units on the first COT is greater than or equal to the seventh threshold.
  • the M consecutive time units are first excluded from the candidate resource set, which can ensure that the priority is higher.
  • the transmission can be successfully performed, thereby improving the transmission performance of the second terminal device (or possibly other terminal devices) on the M continuous time units.
  • the seventh aspect provides a method for determining resources.
  • the method can be executed by the first terminal device or by a component (such as a chip or circuit) of the first terminal device.
  • a component such as a chip or circuit
  • the first terminal device is used below. Take the execution as an example to illustrate.
  • the method includes: the first terminal device receives first information in the sensing window, the first information is used to indicate the information of the first channel occupancy time COT of the second terminal device; and the first terminal device determines the candidate from the selection window.
  • the resource set excludes the reserved resources of the first time unit on the first COT
  • the first terminal device excludes the reserved resources on the first COT located before the first time unit from the candidate resource set.
  • the first terminal device determines to exclude the reserved resources of the first time unit, since the transmission opportunity on the first time unit can be successfully transmitted only by carrying the entire first COT, the first terminal device will be located The reserved resources between the first time units are all excluded, which can at least ensure the transmission of the second terminal device in the first time unit, thereby improving the transmission performance of the second terminal device.
  • the first terminal device excludes the reserved resources on the first COT located before the first time unit from the candidate resource set, including: when the ninth condition is satisfied In this case, the first terminal device excludes the reserved resources on the first COT before the first time unit from the candidate resource set; the ninth condition includes one or more of the following: the transmission priority carried on the first time unit Greater than or equal to the seventh threshold value; the first terminal device is a receiving device for information transmitted on the first time unit; the first time unit is not the last time unit on the first COT.
  • the first terminal device can exclude the reserved resources on the first COT located before the first time unit from the candidate resource set when certain conditions are met. For example, when the transmission priority carried in the first time unit is high, excluding the reserved resources before the first time unit can ensure that the transmission with the higher priority can be carried out successfully, thus improving the transmission performance.
  • the eighth aspect provides a method for resource determination.
  • the method can be executed by the first terminal device or by a component (such as a chip or circuit) of the first terminal device.
  • a component such as a chip or circuit
  • the first terminal device is used below. Take the execution as an example to illustrate.
  • the method includes: the first terminal device receives first information in the sensing window, the first information is used to indicate the information of the first channel occupancy time COT of the second terminal device; and the first terminal device determines candidates within the selection window.
  • the first terminal device does not exclude the reserved resources of all time units on the first COT from the candidate resource set, and the all time units are Includes first time unit.
  • the first terminal device when the first terminal device does not exclude the first time unit in the first COT, the first terminal device does not exclude the reserved resources of all time units on the first COT to avoid interruption of transmission on the first COT, resulting in part of the resource waste problem, so that it can Enough to improve resource usage efficiency.
  • all time units on the first COT include one or more of the following: time units on the first COT used for the second terminal device to send data; The time unit on the first COT shared by the second terminal device to send data to other terminal devices; the time unit on the first COT used by the second terminal device to transmit feedback information; the first COT used by the second terminal device to send synchronization signals time unit.
  • the candidate resource set of the first terminal device does not exclude the reserved resources of all time units on the first COT, including: when the tenth condition is met, The candidate resource set of the first terminal device does not exclude the reserved resources of all time units on the first COT; the tenth condition includes one or more of the following: the priority of the first time unit in the COT is less than or equal to the eighth gate limit; or, the priority of the transmission carried in the first time unit is greater than or equal to the ninth threshold; or, the first time unit is the k-th time unit in the first COT, and k is less than or equal to the tenth threshold limit.
  • the first terminal device when the first terminal device does not exclude the first time unit in the first COT, if the transmission on the first time unit is a transmission with a higher priority in the first COT (greater than the preset threshold), or is located in front of the first COT (such as the first time unit in the first COT), then if the first terminal device does not exclude the reserved resources of the first time unit (that is, the first terminal device occupies the first time unit reserved resources), the transmission on the first COT may be interrupted. At this time, the first terminal device does not exclude the reserved resources on the first COT for all time units, but can improve resource usage efficiency.
  • the method further includes: the first terminal device obtains ninth information, the ninth information instructs the first terminal device to determine the candidate resource based on the COT, and the ninth information comes from the The second terminal device or network device, or the ninth information is predefined information or preconfigured information.
  • the first terminal device may determine candidate resources based on COT according to the first information.
  • a communication device which is used to perform the method in any of the possible implementation manners of the first to eighth aspects.
  • the device may include units and/or modules for performing the method in any possible implementation of the first to eighth aspects, such as a processing unit and/or a communication unit.
  • the device is a terminal device (such as a first terminal device, or a second terminal device).
  • the communication unit may be a transceiver, or an input/output interface; the processing unit may be at least one processor.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the device is a chip, a chip system or a circuit used in a terminal device (such as a first terminal device, or a second terminal device).
  • the communication unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip, chip system or circuit, etc.
  • the processing unit may be at least one processor, processing circuit or logic circuit, etc.
  • a communication device in a tenth aspect, includes: at least one processor, configured to execute a computer program or instructions stored in a memory to execute the method in any of the possible implementation manners of the first to fourth aspects.
  • the device further includes a memory for storing computer programs or instructions.
  • the device further includes a communication interface, through which the processor reads the computer program or instructions stored in the memory.
  • the device is a terminal device (such as a first terminal device, or a second terminal device).
  • the device is a chip, a chip system or a circuit used in a terminal device (such as a first terminal device, or a second terminal device).
  • the present application provides a processor for executing the methods provided in the above first to eighth aspects.
  • processor output, reception, input and other operations can be understood as processor output, reception, input and other operations.
  • transmitting and receiving operations performed by the radio frequency circuit and the antenna, which is not limited in this application.
  • a computer-readable storage medium stores a program code for device execution.
  • the program code includes a program code for executing any of the possible implementations of the above-mentioned first to eighth aspects. Methods.
  • a computer program product containing instructions is provided.
  • the computer program product When the computer program product is run on a computer, it causes the computer to execute the method in any of the possible implementation modes of the first to eighth aspects.
  • a fourteenth aspect provides a communication system, including the aforementioned first terminal device and second terminal device.
  • FIGS 1 and 2 are schematic diagrams of network architecture applicable to embodiments of the present application.
  • Figure 3 shows a schematic diagram of a mode2 resource allocation method provided by an embodiment of the present application.
  • Figure 4 shows a schematic diagram of reserved resources provided by an embodiment of the present application.
  • Figure 5 shows an exemplary flowchart of a candidate resource determination method 500 provided by an embodiment of the present application.
  • Figures 6 to 8 show schematic diagrams of three methods for determining candidate resources provided by embodiments of the present application.
  • Figure 9 shows an exemplary flowchart of a candidate resource determination method 900 provided by an embodiment of the present application.
  • Figure 10 shows a schematic diagram of a method for determining candidate resources provided by an embodiment of the present application.
  • Figure 11 shows an exemplary flowchart of a candidate resource determination method 1100 provided by an embodiment of the present application.
  • Figure 12 shows an exemplary flowchart of a candidate resource determination method 1200 provided by an embodiment of the present application.
  • Figure 13 shows an exemplary flowchart of a candidate resource determination method 1300 provided by an embodiment of the present application.
  • Figure 14 shows a schematic diagram of a method for determining candidate resources provided by an embodiment of the present application.
  • Figure 15 shows an exemplary flowchart of a candidate resource determination method 1500 provided by an embodiment of the present application.
  • Figure 16 shows a schematic diagram of a method for determining candidate resources provided by an embodiment of the present application.
  • Figure 17 shows an exemplary flowchart of a candidate resource determination method 1700 provided by an embodiment of the present application.
  • Figure 18 shows a schematic diagram of a method for determining candidate resources provided by an embodiment of the present application.
  • Figure 19 shows an exemplary flowchart of a candidate resource determination method 1900 provided by an embodiment of the present application.
  • Figure 20 shows a schematic diagram of a method for determining candidate resources provided by an embodiment of the present application.
  • Figure 21 is a schematic block diagram of a communication device 700 provided by an embodiment of the present application.
  • Figure 22 is a schematic block diagram of a communication device 800 provided by an embodiment of the present application.
  • Figure 23 is a schematic block diagram of a chip system 900 provided by an embodiment of the present application.
  • the technical solutions provided by this application can be applied to various communication systems, such as fifth generation (5th generation, 5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division Duplex (frequency division duplex, FDD) system, LTE time division duplex (TDD) system, etc.
  • the technical solution provided by this application can also be applied to future communication systems, such as the sixth generation (6th generation, 6G) mobile communication system.
  • the technical solution provided by this application can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine type Communication (machine type communication, MTC), and Internet of Things (Internet of things, IoT) communication systems or other communication systems.
  • D2D device-to-device
  • V2X vehicle-to-everything
  • M2M machine-to-machine
  • MTC machine type Communication
  • Internet of Things Internet of things, IoT
  • Figure 1 shows a schematic diagram of a communication architecture suitable for embodiments of the present application.
  • the communication system of the present application includes at least two terminal devices (the first terminal device and the second terminal device in Figure 1).
  • the two terminal devices can pass through a sidelink (SL).
  • Carrier waves communicate.
  • the side link represents a connection relationship between terminal equipment and terminal equipment. It is a logical concept rather than a physical entity.
  • the side link is only named for differentiation, and its specific naming does not limit the scope of protection of this application.
  • the second terminal device may be a receiving end device when the first terminal device performs unicast communication, or a receiving end device when the first terminal device performs multicast communication, or the first terminal device may be a receiving end device when the first terminal device performs multicast communication.
  • a certain receiving end device when the terminal device performs broadcast communication which is not limited in this application.
  • the configuration information during SL communication between the terminal device and the terminal device may be configured or scheduled by the network device, or may be independently selected by the terminal device. , this application is not limited.
  • the SL communication between the first terminal device and the second terminal device can be used in the Internet of Vehicles or an intelligent transportation system (intelligent transportation system, ITS), such as V2X communication.
  • V2X communication can include: vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) Communication, vehicle-to-network (V2N) communication.
  • V2V refers to communication between vehicles.
  • V2P refers to the communication between vehicles and people (including pedestrians, cyclists, drivers, or passengers, etc.).
  • V2I refers to the communication between vehicles and infrastructure, such as road side units (RSU) or network equipment.
  • RSU road side units
  • RSU includes two types: terminal type RSU. Since it is deployed on the roadside, this terminal type RSU is in a non-mobile state and does not need to consider mobility; The base station type RSU can provide timing synchronization and resource scheduling for the vehicles communicating with it.
  • V2N refers to the communication between vehicles and network devices. It can be understood that the above is an illustrative description, and the embodiments of the present application are not limiting.
  • V2X can also include V2X communications based on the NR system of the current 3GPP Rel-16 and subsequent versions.
  • first terminal device and the second terminal device may both be within the coverage of the network device, or both may be out-of-coverage of the network device, or one may be within the coverage of the network device. Within the scope, one is outside the coverage of the network equipment, which is not limited by this application.
  • first terminal device may also be connected to other terminal devices other than the second terminal device (that is, the first terminal device is connected to multiple terminal devices), and the second terminal device may also be connected to other terminal devices other than the first terminal device.
  • the connection of other terminal devices that is, the second terminal device is connected to multiple terminal devices
  • both the first terminal device and the second terminal device are within the coverage of the network device, so both the first terminal device and the second terminal device can communicate with the network device.
  • Network devices and terminal devices can communicate through the Uu interface, and the link (link) communicated between the network device and the terminal device can be recorded as a Uu link.
  • the Uu link represents a connection relationship between the terminal device and the network device. It is a logical concept rather than a physical entity. The main link is only named for differentiation, and its specific naming does not limit the scope of protection of this application.
  • the network device and the terminal device can communicate directly or indirectly through other relay devices, which is not limited in this application.
  • the first terminal device is within the coverage of the network device, the second terminal device is outside the coverage of the network device, and the first terminal device is connected to the network device and the second terminal device.
  • the first terminal device can directly communicate with the network device, and the second terminal device can communicate with the network device through the first terminal device.
  • the second terminal device is within the coverage of the network device, and the first terminal device is outside the coverage of the network device, and the second terminal device can directly communicate with the network device.
  • the first terminal device can communicate with the network device through the second terminal device.
  • the first terminal device is within the coverage of the network device, the second terminal device and the third terminal device are outside the coverage of the network device, the first terminal device and the network device, and the second The terminal device is connected to a third terminal device.
  • the first terminal device can directly communicate with the network device, and the second terminal device and the third terminal device can communicate with the network device through the first terminal device.
  • the first terminal device, the second terminal device and the third terminal device are all outside the coverage of the network device, and the first terminal device is connected to the second terminal device, and the second terminal device is connected to The first terminal device and the third terminal device are connected.
  • the first terminal device, the second terminal device and the third terminal device are all outside the coverage of the network device, and the first terminal device is connected to the second terminal device and the third terminal device respectively. (Whether there is a connection between the second terminal device and the fourth terminal device is not limited here).
  • the first to fourth terminal devices are only outside the coverage of the network device, and the first terminal device is connected to the second terminal device, and the second terminal device is connected to the third terminal device and The fourth terminal device is connected.
  • the terminal device involved in the embodiment of the present application may be a device that provides voice/data to users, for example, a handheld device with a wireless connection function, a vehicle-mounted device, etc.
  • some examples of terminals are: mobile phones, tablets, laptops, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart grids Wireless terminals, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocols , SIP) telephone, wireless local loop (WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, which can Wearable devices, terminal devices in the 5G network or terminal devices in the future evolved public land mobile communication network (public land mobile network, PLMN), etc., are not limited in the embodiment
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called Wearable smart devices are a general term for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes, etc.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Broadly defined wearable smart devices include full-featured, large-sized devices that can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, and those that only focus on a certain type of application function and need to cooperate with other devices such as smartphones. Use, such as various types of smart bracelets, smart jewelry, etc. for physical sign monitoring.
  • the device for realizing the function of the terminal device may be a terminal device, or a device that can support the terminal device to realize the function, such as a chip system or a chip, and the device may be installed on in the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the network device in the embodiment of the present application may be a device used to communicate with a terminal device.
  • the network device may also be called an access network device or a wireless access network device.
  • the network device may be a base station.
  • the network device in the embodiment of this application may refer to a radio access network (radio access network, RAN) node (or device) that connects the terminal device to the wireless network.
  • radio access network radio access network, RAN node (or device) that connects the terminal device to the wireless network.
  • the base station can broadly cover various names as follows, or be replaced with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmitting point (TP), primary station, secondary station, multi-standard wireless (motor slide retainer, MSR) node, home base station, network controller, interface Ingress node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (active antenna) unit, AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning node, etc.
  • NodeB Node B
  • eNB evolved base station
  • next generation NodeB next generation NodeB, gNB
  • relay station Access point
  • transmission point transmitting and receiving
  • the base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof.
  • a base station may also refer to a communication module, modem or chip used in the aforementioned equipment or devices.
  • the base station can also be a mobile switching center and equipment that performs base station functions in D2D, V2X, and M2M communications, network-side equipment in 6G networks, equipment that performs base station functions in future communication systems, etc.
  • Base stations can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific equipment form used by the network equipment.
  • Base stations can be fixed or mobile.
  • a helicopter or drone may be configured to act as a mobile base station, and one or more cells may move based on the mobile base station's location.
  • a helicopter or drone may be configured to serve as a device that communicates with another base station.
  • the network device mentioned in the embodiments of this application may be a device including a CU, or a DU, or a device including a CU and a DU, or a control plane CU node (central unit-control plane (CU- CP)) and user plane CU nodes (central unit user plane (CU-UP)) and DU node equipment.
  • CU- CP central unit-control plane
  • CU-UP central unit user plane
  • the device used to implement the function of the network device may be a network device, or may be a device that can support the network device to implement the function, such as a chip system or a chip, and the device may be installed in the network device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • Network equipment and terminal equipment can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the sky. In the embodiments of this application, the scenarios in which network devices and terminal devices are located are not limited.
  • Authorized spectrum is a spectrum resource that needs to be applied to network equipment (telecom operators). It has the characteristics of low interference and security.
  • Unlicensed spectrum is a spectrum resource that can be used free of charge without application and is mainly used as a supplementary tool for operators to enhance their services.
  • communication devices can use spectrum resources in a competitive manner.
  • SL communication on the unlicensed spectrum may be called SL-U
  • NR cellular communication on the unlicensed spectrum may be called NR-U.
  • SL UE, NR UE, Wi-Fi UE, Bluetooth UE, etc. can all transmit on unlicensed spectrum.
  • LBT listen-before-talk
  • LBT is a channel access mechanism based on random back-off. Since the availability of the channel in the unlicensed frequency band cannot be guaranteed at all times, LBT requires the UE to sense whether the channel is idle before accessing the channel and starting to send data. If the channel has been idle for a certain period of time, you can occupy the channel. If the channel is not idle, you need to wait until the channel returns to idle before you can occupy the channel.
  • One possible implementation method uses energy-based detection and signal type detection to determine whether the channel is idle. Taking energy detection as an example, when the detected energy exceeds the detection threshold, it is determined that the channel is busy, that is, access to the channel is not allowed. When the detected energy is lower than the detection threshold and continues for more than a period of time, the channel is determined to be idle, that is, access to the channel is allowed.
  • the channel access process includes type 1 (type1) LBT and type 2 LBT.
  • type1LBT is LBT based on fallback.
  • the fallback time is related to the channel access priority class (CAPC), and the channel needs to be idle for a long time before access can be accessed.
  • type2LBT only requires the channel to be idle for a short period of time (such as 16us or 25us) before the UE can access the channel. It is mainly used when sharing the channel occupancy time (COT).
  • COT channel occupancy time
  • COT Channel occupancy
  • T mot,p The transmission of the UE cannot exceed the maximum channel occupancy time (MCOT) limit, and the maximum channel occupancy time can be recorded as T mot,p .
  • MCOT maximum channel occupancy time
  • the values of T mot,p are different, as shown in Table 1 or Table 2.
  • CW p in Table 1 and Table 2 is the contention window
  • CW min,p is the minimum value of the contention window
  • CW min,p is the maximum value of the contention window.
  • Unlicensed spectrum resources can be shared between UEs. For example, if a UE obtains the right to use the channel through LBT, the UE can occupy the channel together with other devices. This process is COT sharing. The UE can share the channel usage rights in the COT with other devices. The resources that the UE shares with other UEs in the COT can be called shared resources. The shared resources include time domain resources and frequency domain resources. Other devices can send data through the shared resources. or control information.
  • Time domain resources and frequency domain resources can be collectively referred to as time-frequency resources, and time-frequency resources can be used to transmit data or control information.
  • time-frequency resources may include one or more time units (or may also be called time domain units).
  • a time unit can be a slot of 14 symbols, a mini-slot of 7 symbols, a partial slot, a symbol, or a A subframe, or a radio frame, or any other minimum time unit used to transmit data or control information.
  • time-frequency resources may include one or more frequency domain units.
  • a frequency domain unit can be a resource element (RE), or a resource block (RB), or a subchannel (subchannel), or interlace, or a resource pool (resource pool), or a Bandwidth, or a bandwidth part (BWP), resource block set (RB set), or a carrier (carrier), or a channel (channel), or an interlace RB, etc.
  • an RB set can be the number of available resources at a predefined bandwidth size. For example, one RB set corresponds to the number of available resources on a 20MHz bandwidth.
  • the subchannel may be a frequency domain resource unit including a preset number of continuous RBs, or a frequency domain resource unit including a preset number of non-consecutive RBs, which is not limited in this application.
  • NR SL communication is based on a resource pool.
  • the so-called resource pool refers to a time-frequency resource dedicated to SL communication.
  • the frequency domain resources contained in the resource pool are continuous.
  • the time domain resources contained in the resource pool can be continuous or discontinuous.
  • Different resource pools are distinguished by SL-ResourcePoolID.
  • the UE receives on the receiving resource pool and sends on the transmitting resource pool. If the resource pools have the same resource pool index, the time-frequency resources of the resource pools can be considered to be completely overlapping.
  • the SL resource pool can also be understood as a collection of resources that can be used for SL transmission.
  • the resource pool may also be called a channel, an operating channel, or a nominal channel (Nominal Channel Bandwidth) bandwidth (bandwith). That is, the resource pool, channel, and bandwidth are all used to represent the set of resources that can be used for SL transmission.
  • a resource pool can include one or more RB sets.
  • resource allocation (RA) in SL transmission can be divided into two modes: mode 1 (mode 1) and mode 2 (mode 2).
  • mode 1 the time-frequency resources used for SL transmission are centrally scheduled by the network equipment; in mode 2, the time-frequency resources used for SL transmission are determined by the terminal equipment.
  • mode 2 the time-frequency resources used for SL transmission are determined by the terminal equipment.
  • this time point refers to a time slot in which a higher layer of the terminal device triggers resource selection for sending PSCCH and/or PSSCH.
  • this time slot may be called time slot n.
  • One of the two time windows is the sensing window, which refers to the window used by the terminal device to sense the occupancy of time and frequency resources around itself.
  • the sensing window may correspond to the time slot range [nT 0 ,nT proc,0 ] in Figure 2 .
  • the other window of the two time windows is the selection window, which refers to the window used by the terminal device to determine candidate single-slot resources (resources for short) based on the sensing results within the sensing window.
  • the selection window on the domain is located behind the perception window.
  • the selection window may correspond to the time slot range [n+T 1 , n+T 2 ] in Figure 2 .
  • time slot set of the resource pool is defined as
  • Step 1 The terminal determines the selection window [n+T 1 , n+T 2 ].
  • n is the time when resource selection is triggered.
  • T 1 depends on the implementation of the terminal, but T 1 needs to satisfy: in,
  • the value is related to the subcarrier spacing.
  • the value of can be determined according to Table 1.
  • Table 3 shows the value.
  • the value of T 2 is related to the minimum value of T 2 and the remaining packet delay budget (packet delay budget, PDB). For example, if the value of T 2min is smaller than PDB, the value of T 2 depends on the implementation of the terminal, but T 2 needs to satisfy: T 2min ⁇ T 2 ⁇ PDB; if the value of T 2min is larger than PDB, then T The value of 2 is PDB, where T 2min is the minimum value of T 2 , and PDB is in time slots.
  • the total number of single candidate resources in the resource pool is recorded as M total .
  • Step 2 The terminal determines the sensing window
  • n is the time when resource selection is triggered.
  • T 0 is the same as the sensing window The number of corresponding time slots.
  • the value of is related to the subcarrier spacing.
  • the value of can be determined according to Table 4, which shows the value.
  • Step 3 The terminal obtains the sensing window internal perception results.
  • the sensing results may include at least one of the following: PSCCH decoding results and RSRP measurement results.
  • Step 4 The terminal determines the resources used to transmit the PSSCH based on the sensing results.
  • a possible implementation manner assumes that the set of resources used to transmit PSSCH is S A , and the initial value of S A is the set of candidate resources in resource pool 1 under the selection window [n+T 1 , n+T 2 ].
  • the terminal excludes a single candidate resource R x,y that satisfies the following conditions from SA .
  • SCI Sidelink control information
  • the SCI includes a resource reservation period field and a priority field.
  • the terminal is in the time slot
  • the SCI is received, and the SCI includes a resource reservation period field and a priority field.
  • the resource reservation period field indicates p rsvp_RX
  • the priority field indicates prio RX .
  • Condition 2 The RSRP measurement value corresponding to the reserved resource indicated by SCI is higher than the RSRP threshold value A.
  • A is Th(p rsvp_RX , prio RX ).
  • Condition 3 A single candidate resource overlaps with the reserved resource indicated in the SCI.
  • the terminal is in the time slot After receiving the SCI, and the SCI includes the resource reservation period field, the terminal is expected to can receive the same SCI, the terminal determines the same as A collection of overlapping RBs and slots.
  • T scal is obtained by converting T 2 into milliseconds (msec).
  • the terminal determines whether the number of single candidate resources in SA is greater than X ⁇ M total . If the number of single candidate resources in S A is less than X ⁇ M total , the terminal increases the RSRP threshold Th (p rsvp_RX , prio RX ) by 3dB and re-executes the elimination process. If the number of single candidate resources in S A reaches X ⁇ M total , the elimination process ends, and the current S A is a set of single candidate resources that can be used to transmit PSSCH.
  • Th p rsvp_RX , prio RX
  • Step 5 The terminal reports the determined SA to the higher layer of the terminal device, so that the higher layer of the terminal device determines the resources used to transmit the PSSCH based on the reported SA .
  • the upper layer of the terminal device is a layer above the physical layer, such as MAC layer, RRC layer, PDCP layer, etc., which is not limited in this application.
  • S A can be regarded as a resource available to the terminal device.
  • the reserved resources in the embodiment of this application refer to resources reserved for transmitting data or information, including time domain resources and frequency domain resources. Reserved resources can be distributed periodically, and the time interval between two adjacent reserved resources can be called a reservation period (Reservation period) or a resource reservation period (Resource Reservation period).
  • FIG. 4 shows a schematic diagram of reserved resources.
  • R1 is a resource for transmitting the first data (illustrated by a solid line in the figure), including time domain resources and frequency domain resources of the first data.
  • R2, R3 and R4 are reserved resources corresponding to the first data (indicated by dotted lines in the figure). It can be understood that Figure 4 shows three reserved resources corresponding to the first data, but in actual transmission, the first data may only correspond to one or two reserved resources, or it may correspond to four or four There are more than one reserved resource, and this application does not limit this.
  • the reserved resources corresponding to the first data are resources determined based on the frequency domain resources and time domain resources of the first data and the reservation period indicated by the SCI corresponding to the first data. For example, the SCI corresponding to the first data is in the time slot is received, the time slot where the corresponding reserved resource is located is Wherein, q is a positive integer, and P′ rsvp_RX is the reserved period of the first data or the reserved period of the first COT where the first data is located.
  • P rsvp_RX is the reservation period indicated by the SCI of the first data in milliseconds (ms)
  • P' rsvp_RX is the reservation period on the logical time slot converted into the reservation period indicated by P rsvp_RX .
  • stay cycle is the frequency domain resources in the reserved resources corresponding to the first data.
  • the frequency domain resources in the reserved resources corresponding to the first data are the same as the frequency domain resources of the first data.
  • the reservation period indicated by the "resource reservation period” field and the time domain resource and frequency domain resource corresponding to the R1 resource can be , determine the above reserved resources R2, R3 and R4. For example, the time interval between the starting position of R2's time slot and the starting position of R1's time slot is the reservation period, and the end position of R2's time slot and the end position of R1's time slot are also the reservation period. Moreover, the frequency domain resources of R2 are the same as the frequency domain resources of R1.
  • the time interval between the starting position of R3's time slot and the starting position of R2's time slot is the reservation period
  • the end position of R3's time slot and the end position of R2's time slot are also the reservation period.
  • the frequency domain resources of R3 are the same as the frequency domain resources of R2.
  • the time interval between the start position of the time slot where R4 is located and the start position of the time slot where R3 is located is the reservation period
  • the end position of the time slot where R4 is located and the end position of the time slot where R3 is located are also the reservation period
  • the frequency domain resources of R4 are the same as those of R3.
  • LTE V2X supports broadcasting, that is, the sending terminal sends data without any restrictions on the receiving terminal.
  • unicast and multicast are introduced in NR V2X.
  • Unicast means communication between a pair of terminals
  • multicast means the sending terminal sends data and a limited number of terminals in the group receive it.
  • HARQ feedback is supported in unicast and multicast.
  • Unicast and multicast support the ACK/NACK feedback method, that is, if the receiving terminal successfully receives data, it will feedback ACK, and if it fails to receive data, it will feedback NACK.
  • multicast also supports NACK only feedback mode, that is, multiple receiving terminals only feedback NACK on the same control resource. That is, the receiving terminal will feedback NACK if it fails to receive data, and does not send any feedback signal if it successfully receives data.
  • Unicast and multicast HARQ information is carried using a feedback channel, which may be a physical sidelink feedback channel (PSFCH).
  • a feedback channel which may be a physical sidelink feedback channel (PSFCH).
  • PSFCH can be used to transmit feedback information.
  • the sender carries hybrid automatic repeat request acknowledgment (hybrid automatic repeat request acknowledgment) in the control information, HARQ-ACK) feedback enable information
  • the receiving end can feed back corresponding affirmative (ACK) or negative (negative acknowledgment, NACK) information according to the decoding result of this PSSCH.
  • the ACK or NACK information is transmitted through PSFCH.
  • ACK only or NACK only information can also be transmitted through PSFCH.
  • the resources of the feedback channel refer to the resources used to transmit the feedback channel.
  • RSRP Reference signal received power
  • PSSCH-RSRP is by definition the average of the useful signal (i.e. PSSCH-DMRS) power (excluding the power of the CP part) on all REs carrying PSSCH-DMRS in the linear domain.
  • PSCCH-RSRP is by definition the average of the useful signal (ie PSCCH-DMRS) power (excluding the power of the CP part) on all REs carrying PSCCH-DMRS in the linear domain.
  • the symbol where the PSFCH is located does not measure RSRP.
  • CBR Channel busy ratio
  • CBR refers to: at time slot n, the proportion or part of the S-RSSI measured on the sub-channel in the resource pool in the time slot where the defined measurement window is located exceeds the configured threshold value.
  • the CBR can be measured for different channels to obtain the CBR of the corresponding channel.
  • the CBR of the PSSCH is obtained;
  • the physical sidelink control channel (PSCCH) is obtained;
  • the sidelink control channel (physical sidelink feedback channel, PSFCH) is measured to obtain the CBR of PSFCH.
  • the measurement window of the 100 time slots before time slot n (time slot [n-100, n-1])
  • the threshold configured by the network device the received signal strength indication (RSSI) of 1200 sub-channels in the first 100 time slots before time slot n exceeds the threshold configured by the network device.
  • PSCCH For PSCCH, only the positions where the resource pools of PSCCH and PSSCH are not adjacent in the frequency domain are measured. During measurement, the bandwidth of PSCCH is fixed to 2 PRBs.
  • RSSI is measured for the sidelink
  • S-RSSI sidelink RSSI
  • S-RSSI is defined as the linear average of all received powers on the configured sub-channels received on each symbol. For example, there are 10 symbols available for measurement on a time slot. Assume that the sub-channel configured on each symbol occupies a bandwidth of 20 physical resource blocks (PRBs). Then calculate the parameters on these 10 symbols respectively. The total power of each symbol on these 20 PRBs, and then the measurement results on these 10 measurable symbols are linearly averaged to obtain S-RSSI.
  • PRBs physical resource blocks
  • CR refers to the value obtained by dividing the number of channels used for transmission by the total configured sub-channels in time slot n.
  • the number of channels used for transmission may be the sum of the number of sub-channels used for transmission before time slot n, and/or the number of sub-channels scheduled for transmission after time slot n.
  • the number of total configured sub-channels may be the number of sub-channels in the measurement window before time slot n, or the number of sub-channels in the measurement window after time slot n.
  • the measurement window before time slot n can be [n-a,n-1]
  • the measurement window after time slot n can be [n,n+b]
  • the total number of configured sub-channels is [n-a,n+ b] The total number of sub-channels configured on.
  • time slot n For example, for time slot n, assume that the total number of sub-channels used for transmission on time slot [n-a, n-1] is S1, and the sub-channels scheduled for transmission on time slot [n, n+b] The total number S2, the total number S of sub-channels configured on the time slot [n-a, n+b], then the CR measured at time slot n is (S1+S2)/S.
  • the total number of sub-channels scheduled for transmission on [n+1, n+b] is actually the sub-channel occupied by future transmission, which can be determined based on the number of sub-channels detected on time slot n.
  • Retransmission statistics indicated by the scheduling assignment (SA) indication information is indicated.
  • the total number of sub-channels configured on the time slot [n-500, n+499] S 1000*20
  • Data of different services sent by the UE and data transmitted on the same time unit or channel may have different priorities.
  • the priority level and the priority value may have a certain corresponding relationship, for example, a higher priority level corresponds to a lower priority value, or a lower priority level corresponds to a lower priority value.
  • a higher priority level corresponds to a lower priority value
  • a lower priority level corresponds to a lower priority value.
  • the priority value range can be an integer from 1 to 8 or an integer from 0 to 7. If the priority value range is 1-8, then a priority value of 1 represents the highest level of priority.
  • the information indicated by the indication information is called information to be indicated.
  • the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated, etc.
  • the information to be indicated may also be indirectly indicated by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance.
  • the indication of specific information can also be achieved by means of a pre-agreed (for example, protocol stipulated) arrangement order of each piece of information, thereby reducing the indication overhead to a certain extent.
  • Figure 5 shows an exemplary flowchart of a resource determination method 500 provided by an embodiment of the present application.
  • the method 500 may be executed by the first terminal device, or by a component (such as a chip or circuit) of the first terminal device.
  • the method 500 is executed by the first terminal device as an example for description below.
  • the first terminal device when the candidate resource set excludes reserved resources corresponding to the first data associated with the first feedback channel, the first terminal device also excludes reserved resources corresponding to the first feedback channel, thereby ensuring the first data feedback performance.
  • the method 500 is illustrated below in conjunction with each step in Figure 5 .
  • the first terminal device receives the first information in the sensing window.
  • the first information indicates the first COT of the second terminal device, and the first COT includes resources occupied by the first feedback channel.
  • the second terminal device here may be a receiving end device of the first terminal device, or may be a transmitting end device of the first terminal device, or may be another device that does not have a transceiver relationship with the first terminal device.
  • This application applies This is not a limitation. It can be understood that the second terminal device is the receiving end device of the first terminal device, which means that the destination identifier of the first terminal device is the source identifier of the second terminal device; the second terminal device is the sending end of the first terminal device. Device means that the destination identifier of the second terminal device is the source identifier of the first terminal device.
  • the first information is sidelink control information SCI.
  • the first information may include the following information One or more: structural information of the first COT, reservation information for data transmission on the first COT, and scheduling information for data transmission on the first COT.
  • the structure information of the first COT includes time-frequency resource information occupied by the first COT, channel access priority type information, time-frequency resource information of the second terminal device sending data on the first COT, and time-frequency resource information of the second terminal device on the first COT.
  • the reservation information for data transmission on the first COT includes: one or more of: priority information for transmission data, reservation period information for transmission data, time-frequency resource information occupied by transmission data, and other information.
  • the scheduling information for data transmission on the first COT includes: one or more of the identifier or source identifier of the first terminal device, the identifier or destination identifier of the second terminal device, broadcast type, HARQ process number and other information.
  • the first terminal device excludes reserved resources corresponding to the first data associated with the first feedback channel from the candidate resource set in the selection window, and excludes reserved resources corresponding to the first feedback channel from the candidate resource set.
  • the first terminal device after receiving the first information in the sensing window, the first terminal device excludes reserved resources corresponding to the first data and reserved resources corresponding to the first feedback channel from the candidate resource set in the selection window.
  • the first feedback channel is associated with the first data. That is, the information transmitted in the resources occupied by the first feedback channel is the feedback information of the first data, or in other words, the feedback information of the first data is transmitted in the resources of the first feedback channel.
  • the first data is located on the first COT and/or the second COT, the second COT being located before the first COT. That is to say, the first data can be data transmitted on the first COT, or it can be data transmitted on the second COT. It can also be partly transmitted on the first COT and partly transmitted on the second COT. This application There is no limit to this.
  • the second COT may be a COT detected by the first terminal device in the sensing window (that is, the first terminal device receives information indicating the second COT in the sensing window), or it may not be the first terminal device.
  • the COT detected by the device in the sensing window is not limited in this application.
  • the set of candidate resources in the selection window refers to a set of time-frequency resources in the selection window used by the first terminal device to send data and/or control information.
  • the first terminal device excludes the reserved resources corresponding to the first data from the candidate resource set, which means that the first terminal device excludes the portion of the reserved resources corresponding to the first data that overlaps with the candidate resource set from the candidate resource set.
  • excluding the reserved resources corresponding to the first data can also be understood to mean that the first terminal device does not use the reserved resources corresponding to the first data as a candidate resource for transmitting data and/or control information, or that the first terminal device does not use the reserved resources corresponding to the first data as a candidate resource for transmitting data and/or control information.
  • a terminal device does not reserve reserved resources corresponding to the first data in the candidate resource set.
  • the first terminal device when the first terminal device determines to exclude the reserved resources corresponding to the first data from the candidate resource set in the selection window, the first terminal device may exclude the reserved resources corresponding to the first feedback channel. In other words, when the first terminal device determines not to exclude the reserved resources corresponding to the first data from the candidate resource set in the selection window, it does not exclude the reserved resources corresponding to the first feedback channel from the candidate resource set. This application does not limit how the first terminal device determines to exclude the reserved resources corresponding to the first data from the candidate resource set.
  • the first terminal device does not exclude the reserved resources from the candidate resource set, which means that the first terminal device uses the reserved resources as candidate resources for transmitting data or information, or in other words, the first terminal device is in the candidate resource set.
  • the resource collection reserves this reserved resource.
  • the first terminal device when the first condition is met, excludes the reserved resources corresponding to the first data and the reserved resources corresponding to the first feedback channel from the candidate resource set in the selection window.
  • Reserve resources where the first condition includes the following two items:
  • the first terminal device obtains the reservation period associated with the second data, or the second data is periodic data, or the information indicating the second data includes the reservation period;
  • the reserved resources corresponding to the second data overlap with the candidate resource set in the selection window, or the reserved resources corresponding to the second data partially or completely overlap with the candidate resource set in the selection window.
  • the above-mentioned second data is the first data, or other data located on the same COT as the first data, which is not limited in this application.
  • the first condition may also include the following: the RSRP of the second data is greater than or equal to a preset threshold value.
  • the threshold values involved in the embodiments of this application can be preconfigured or predefined values, or values configured by network devices, which are not limited in this application, and will not be repeated in other similar places.
  • the first terminal device does not exclude the reserved resources corresponding to the first data and the reserved resources corresponding to the first feedback channel from the candidate resource set in the selection window. Reserve resources.
  • the following is a possible implementation manner for the first terminal device to exclude the reserved resources corresponding to the first feedback channel from the candidate resource set.
  • the first terminal device excludes part or all of the frequency domain resources on the first time unit from the candidate resource set, where the reserved resources corresponding to the first feedback channel are located on the first time unit, where part or all
  • the frequency domain resources include a set of resource blocks in which the reserved resources of the first feedback channel are located.
  • Part of the frequency domain resources of the first time unit refers to, for example, the frequency domain resources occupied by the first COT.
  • the first terminal device when the first terminal device excludes the reserved resources corresponding to the first feedback channel from the candidate resource set, the first terminal device also excludes the reserved resources corresponding to the first feedback channel from the candidate resource set. some or all other resources on the first time unit.
  • the reserved resources corresponding to the first feedback channel include reserved resources corresponding to feedback of data in the shared resources in the first COT. Therefore, by excluding the reserved resources corresponding to the first feedback channel, interruption of the feedback resources on the reserved resources of the first COT can be prevented.
  • the first terminal device may further exclude the reserved resources on the first COT located before the first time unit where the first feedback channel is located from the candidate resource set.
  • the reserved resources of the first COT are divided into reserved resources #1, reserved resources #2 and reserved resources #3, where reserved resources #1 is the first time unit where the first feedback channel is located.
  • Reserved resources Reserved resource #2 is the reserved resource of the first COT located before the first time unit where the first feedback channel is located.
  • Reserved resource #3 is the reserved resource of the first COT located before the first time unit where the first feedback channel is located. Reserved resources after the first time unit where the first feedback channel is located. If the first terminal device wants to exclude reserved resource #1 from the resource candidate set, the first terminal device can also exclude reserved resource #2 from the candidate resource set. Therefore, in this case, the second terminal device can Use reserved resource #1 and reserved resource #2 for transmission to avoid transmission interruption of the second terminal device on the first COT, thereby improving the transmission performance of the second terminal device.
  • the first terminal device wants to exclude the reserved resources of the first feedback channel from the candidate resource set, due to the transmission opportunity on the first time unit where the reserved resources of the first feedback channel are located, it needs to be equipped with Only the entire first COT can be successfully transmitted. Therefore, if the reserved resources on the first COT located before the first time unit are excluded, it can at least ensure that the second terminal device successfully transmits on the first time unit, thereby improving transmission. performance.
  • the first terminal device may also exclude reserved resource #3 from the candidate resource set. That is to say, the first terminal device may exclude the reserved resources of the first COT when it wants to exclude the reserved resources corresponding to the first feedback channel.
  • the first terminal device may exclude the reserved resources on the first COT located before the first time unit where the first feedback channel is located from the candidate resource set when the second condition is met.
  • the second condition here includes one or more of the following: the transmission priority carried on the first feedback channel is greater than or equal to the first threshold, or the first terminal device is a receiving device corresponding to the first feedback channel.
  • the first terminal device is a receiving device corresponding to the first feedback channel, which means that the first terminal device is a device that sends data, and the first terminal device expects to receive the data sent by the first terminal device on the resources of the first feedback channel.
  • the feedback information of the data or in other words, the first feedback channel is used to transmit the feedback information of the data sent by the first terminal device.
  • the first terminal device if the transmission priority carried on the first feedback channel is greater than or equal to the first threshold value, the first terminal device is located before the first time unit in the candidate resource set, excluding the first COT.
  • the reserved resources can further protect the success rate of transmission by the second terminal device in the first time unit.
  • the terminal device also obtains second information, wherein the second information instructs the first terminal device to determine the candidate resources based on the COT.
  • the second information comes from the second terminal device or network device, or the second information is predefined or preconfigured information, which is not limited in this application.
  • the first terminal device may perform the above S502 based on the second information.
  • the first feedback channel on the first COT is associated with the first data on the first COT.
  • the candidate resource set in the selection window excludes some or all frequency domain resources on the first time unit.
  • the first time unit is the time unit where the reserved resources corresponding to the first feedback channel are located. Some or all of the resources here include the first feedback The set of resource blocks where the reserved resources of the channel are located.
  • the first terminal device may further exclude the reserved resources on the first COT located before the time unit where the first feedback channel is located from the candidate resource set.
  • the reserved resources on the first COT located before the time unit where the first feedback channel is located include reserved resources corresponding to the first data, and/or reserved resources corresponding to the first data
  • the resources between the time unit and the time unit where the reserved resources of the first feedback channel are located that is, the part filled with diamonds in the figure). It can be understood that excluding "reserved resources on the first COT located before the time unit where the first feedback channel is located" includes excluding resources filled with diamonds in the figure. part or all.
  • the feedback channel on the first COT is associated with the first data on the second COT.
  • the second COT is located before the first COT.
  • the first terminal device determines to exclude the preset data corresponding to the first data.
  • the candidate resource set in the selection window excludes resources in the first time unit, and the first time unit is the time unit where the reserved resources corresponding to the first feedback channel are located.
  • the first terminal device detects the first COT of the second terminal device, when the candidate resource set excludes the reserved resources of the first data associated with the first feedback channel, the first feedback channel is also excluded. Resources are reserved, thereby improving the transmission performance of the first data, for example, improving the reception performance of the first data and the feedback performance of decoding.
  • the resource of the first feedback channel is located on the first COT of the second terminal device. That is to say, the above method 500 describes whether the first terminal device determines whether to exclude the candidate resource set.
  • a resource reservation scheme for the first feedback channel on the first COT is not limited to this. That is to say, this application does not limit the resource of the first feedback channel to be located on a certain COT detected by the first terminal device.
  • the resources of the first feedback channel may also be configured in a system-level manner through the system.
  • the resource of the first feedback channel may be configured in a resource pool, or may be configured by the network device to the first terminal device through a system message, which is not limited in this application.
  • the resources of the first feedback channel and the reserved resources of the first feedback channel are configured or pre-configured in the resource pool through signaling.
  • the resources of the first feedback channel and the reserved resources of the first feedback channel are collectively referred to as first feedback resources.
  • the first terminal device may exclude the feedback resource from the candidate resource set if any one of the following conditions is met:
  • the first feedback resource is a feedback resource used by the first terminal device
  • the first feedback resource is a public feedback resource configured in the resource pool.
  • the first feedback resource is a feedback resource used by the first terminal device, which means that the first feedback resource is a feedback resource used by the first terminal device for sending and/or receiving.
  • the first feedback resource is the feedback resource used by the first terminal device to send, which refers to the first feedback resource being used to transmit feedback information of the data sent by the first terminal device;
  • the first feedback resource is the feedback resource used by the first terminal device to receive
  • the feedback resource refers to the first feedback resource used to transmit feedback information of data received by the first terminal device.
  • the first terminal device may exclude only the feedback resources to be used by the first terminal device among the first feedback resources.
  • condition (2) the first terminal device needs to exclude all resources in the first feedback resources.
  • the first terminal device further excludes all public feedback resources configured on the resource pool.
  • the first terminal device excluding the first feedback resource may refer to the time unit in which the first terminal device excludes the first feedback resource.
  • the first terminal device can exclude the feedback resources in the resource selection window from the candidate resource set according to the configured feedback resource information and the first terminal device's usage of the feedback resources. Therefore, this solution allows the first terminal device to not use feedback resources as candidate resources for its own data transmission under certain circumstances, which is conducive to improving the robustness of feedback resources from the perspective of the first terminal device or system, thereby improving Feedback performance.
  • Figure 9 shows an exemplary flowchart of a resource determination method 900 provided by an embodiment of the present application.
  • the method 900 may be executed by the first terminal device, or by a component (such as a chip or circuit) of the first terminal device.
  • the method 900 is executed by the first terminal device as an example for description below.
  • the number of resources excluded by the first terminal device in the candidate resource set is greater than the number of reserved resources of the first COT of the second terminal device.
  • the first terminal device receives the first information in the sensing window.
  • the first information indicates the first COT of the second terminal device
  • the reserved resources of the first COT are first resources
  • the number of the first resources is N1.
  • reserved resources of the first COT can be any of the following:
  • the first terminal device excludes the second resource from the candidate resource set in the selection window.
  • the number of the second resources is N2, the second resources include the first resources, and N2 is greater than N1. That is to say, the number of resources excluded by the first terminal device in the candidate resource set is greater than the number of reserved resources of the first COT.
  • the first terminal device may exclude the second resource from the candidate resource set when it is determined that the first resource is to be excluded from the candidate resource set.
  • This application does not limit the manner in which the first terminal device determines to exclude the first resource from the candidate resource set.
  • the first terminal device when the first terminal device determines that the data transmitted on the first COT or the resource pool where the first COT is located enables PSFCH feedback, the first terminal device excludes the second resource from the candidate resource set. It can be understood that if the first terminal device turns off PSFCH feedback on the resource pool where the first COT is determined to be located, then N2 is equal to N1 at this time.
  • the feedback period corresponding to the first COT can be an integer such as 0, 1, 2, 3, 4, etc. When the feedback period is 0, it means that the first COT does not enable feedback. At this time, the value of N2 is equal to the value of N1.
  • the first terminal device determines N2 based on one or more of the following information: configuration information from the network device or the second terminal device, the feedback period corresponding to the first COT, the value of N1, the The number of shared time slots on a COT.
  • the network device or the second terminal device sends configuration information to the first terminal device, and the configuration information is used to indicate the value of N2, that is, the configuration information indicates the number of resources excluded by the first terminal device in the candidate resource set.
  • the value of N2 corresponds to the period corresponding to the first COT, that is, the larger the feedback period corresponding to the first COT, the larger the N2 value, and vice versa, the smaller the N2 is.
  • the value of N2 corresponds to the value of N1.
  • the value of N2 corresponds to the number of shared time slots in the first COT.
  • the embodiments of the present application do not limit whether there is a transceiver relationship between the first terminal device and the second terminal device, that is, the first terminal device may be the sending end device and/or the receiving end device of the second terminal device, or It may be neither the sending end device of the second terminal device nor the receiving end device of the second terminal device, which is not limited in this application.
  • the first resource is the reserved resource of the first COT, and the second resource is greater than the first resource.
  • resource a and resource b are resources in which the second resource is more than the first resource, and the quantity of at least one resource in resource a and resource b is greater than 0.
  • the number of resources excluded by the first terminal device in the candidate resource set is greater than the number of reserved resources of the first COT of the second terminal device, so that more resources can be reserved for the second terminal device for transmission.
  • the first terminal device excludes N2 second resources from the candidate resource set, and may provide the second terminal device with Reserve more resources than the first resources.
  • These extra resources can be used by the second terminal device to send feedback information of the first COT or other COTs before the first COT, and can also be used for some MAC CEs. Or potentially share data to reserve transmission resources, thereby improving the transmission performance of the second terminal device.
  • Figure 11 shows an exemplary flowchart of a resource determination method 1100 provided by an embodiment of the present application.
  • the number of reserved resources of the second terminal device is greater than the number of resources used by the second terminal device to send data, so that the second terminal device has sufficient resources for subsequent transmission and improves the transmission performance of the second terminal device.
  • Method 11 will be exemplarily described below in conjunction with each step in Figure 11 .
  • the second terminal device determines the third resource.
  • the third resource is a resource reserved by the second terminal device for sending the second data
  • the third resource includes a fourth resource
  • the fourth resource is a resource for the second terminal device to send the second data
  • the third resource is a resource for the second terminal device to send the second data.
  • the quantity of the third resource is N2
  • the quantity of the fourth resource is N1, and the N2 is greater than the N1.
  • the number of resources reserved by the second terminal device is greater than the number of resources used by the second terminal device to send data.
  • the second terminal device determines the number of third resources (ie, N2) based on one or more of the following: the maximum COT length mCOT corresponding to the channel access priority type CAPC of the second terminal device, the third 2.
  • N2 cannot be greater than the maximum COT length mCOT corresponding to the CAPC of the second terminal device
  • N2 is less than or equal to N1+Ns, where Ns is the number of time units occupied by the PSFCH resources configured on the first COT;
  • N2 is less than or equal to N1 + Ns, where Ns is the number of time units occupied by the resources shared by the second terminal device to other terminals on the first COT.
  • the second terminal device sends third information to the first terminal device, where the third information is used to indicate the third resource.
  • the first terminal device receives the third information from the second terminal device.
  • the second terminal device receives fourth information
  • the fourth information instructs the second terminal device to send the third information to the first terminal device.
  • the second terminal device sends the third information to the first terminal device according to the fourth information.
  • the third information directly indicates the third resource.
  • the third information includes one or more fields for indicating the third resource, or the third information includes one or more fields for indicating the index of the third resource.
  • the third information indirectly indicates the third resource.
  • the third information indicates the fourth resource and the value of N3, where N3 is the difference between N2 and N1.
  • the second terminal device sends fifth information to the first terminal device.
  • the first terminal device receives the fifth information from the second terminal device.
  • the fifth information indicates the number of resources excluded from the candidate resource set of the first terminal device in the selection window, and the number of resources is N2 or N1.
  • the fifth information may be a 1-bit indicator bit. When the value is "1”, it indicates that the number of resources is N2; when the value is "0", it indicates that the number of resources is "N1". .
  • the second terminal device determines the number of resources excluded by the first terminal device in the candidate resource set.
  • the second terminal device may determine the number of resources excluded by the first terminal device in the candidate resource set in the following manner:
  • the second terminal device determines whether the fixed bit rate CBR of the first COT is greater than or equal to the fourth threshold value. If the CBR of the first COT is greater than or equal to the fourth threshold value, the second terminal device determines whether the CBR of the first COT is greater than or equal to the fourth threshold value. The value is N2, otherwise the second terminal device determines that the value of N3 is N1;
  • the second terminal device determines whether the first COT enables HARQ. If the first COT enables HARQ, the second terminal device determines that the value of N3 is N2. Otherwise, the second terminal device determines that the value of N3 is N1. ;
  • the second terminal device determines that the value of N3 is N2, and the number of PSFCH resources configured on the first COT is Or when the PSFCH resource period is the second value, the second terminal equipment determines that the value of N3 is N1.
  • the first value and the second value here may be predefined or preconfigured values, or network device configurations. The value is not limited in this application.
  • the second terminal device determines that the value of N3 is N2; otherwise, the second terminal device determines that the value of N3 is N1.
  • the second terminal device reserves more resources than the actual transmission resources, so that the second terminal device has sufficient resources for subsequent transmission (such as transmitting feedback information), thereby improving the transmission performance of the second terminal device.
  • Figure 12 shows an exemplary flowchart of a resource determination method 1200 provided by an embodiment of the present application.
  • the method 1200 may be executed by the first terminal device, or may be executed by a component (such as a chip or circuit) of the first terminal device.
  • the method 1200 is executed by the first terminal device as an example for description below.
  • the number of reserved resources of the first COT (denoted as N2) is greater than the number of resources for data transmission on the first COT (denoted as N1).
  • the first terminal device can be excluded from the candidate resource set according to actual needs. N2 resources or N1 resources.
  • the method 1200 is illustratively described below in conjunction with each step in Figure 12 .
  • the first terminal device receives the first information in the sensing window.
  • the first information indicates the first COT of the second terminal device, the first COT includes a fifth resource, the fifth resource is used to send data, and the number of the fifth resource is N1.
  • the reserved resources of the first COT are sixth resources, the number of the sixth resources is N2, and the N2 is greater than the N1.
  • the first terminal device excludes the seventh resource from the candidate resource set in the selection window.
  • the first terminal device excludes the seventh resource, and the seventh resource includes the fifth resource or the sixth resource.
  • the following is an exemplary description of a specific implementation manner in which the first terminal device determines the number N3 of fifth resources.
  • the first terminal device when the first terminal device receives sixth information from the second terminal device or the network device, the sixth information is used to indicate the number of the fifth resource, the first terminal device Determine N3 based on the sixth information;
  • the first terminal device determines whether the CBR of the first COT is greater than or equal to the fourth threshold value. When the CBR of the first COT is greater than or equal to the fourth threshold value, the first terminal device determines whether the CBR of the first COT is greater than or equal to the fourth threshold value. The terminal device determines that the value of N3 is N2, otherwise the first terminal device determines that the value of N3 is N1;
  • the first terminal device determines whether the first COT enables HARQ. If the first COT enables HARQ, the first terminal device determines that the value of N3 is N2. Otherwise, the first terminal device The device determines that the value of N3 is N1;
  • the first terminal device determines the value of N3 The value is N2.
  • the second value for example, the period is 4 or 8
  • the first terminal equipment determines that the value of N3 is N1. It can be understood that the first value and the second value here may be predefined or preconfigured values, or values configured by the network device, which are not limited in this application.
  • the first terminal device determines that the value of N3 is N2; otherwise, the first terminal device determines that the value of N3 is N1. .
  • the first terminal device determines that the value of N3 is N2, otherwise the first terminal device Determine the value of N3 to be N1.
  • the first terminal device can use the corresponding method or rule to , determine whether to exclude resources according to N1 or N2, so that from the perspective of the receiving side, the corresponding resources can be excluded in a manner that matches the needs of the second terminal device, so that the second terminal device has enough resources for the next transmission.
  • the resources can be used for transmission, thereby improving the transmission performance of the second terminal device.
  • Figure 13 shows an exemplary flowchart of a resource determination method 1300 provided by an embodiment of the present application.
  • the method 1300 may be executed by the first terminal device, or may be executed by a component (such as a chip or circuit) of the first terminal device.
  • the method 1300 is executed by the first terminal device as an example for description below.
  • the first terminal device determines whether to perform frequency division multiplexing on the resources reserved for the first data sent on the first COT.
  • the method 1300 is illustrated below in conjunction with each step in Figure 13.
  • the first terminal device receives first information in the sensing window, and the first information indicates the first COT of the second terminal device.
  • S1302 The first terminal device determines whether to exclude the eighth resource from the candidate resource set in the selection window.
  • the eighth resource and the ninth resource are located in the same time unit, and the frequency domain of the eighth resource and the ninth resource are different.
  • the ninth resource is a reserved resource for the first data sent on the first COT. That is to say, the eighth resource and the ninth resource are resources in the same time domain but different in frequency domain. Therefore, the eighth resource can also be said to be a frequency-divided resource from the ninth resource. Therefore, S1302 can also be described as: the first terminal device determines whether to perform frequency division multiplexing on the ninth resource.
  • the eighth resource can be a resource belonging to the same RB set as the ninth resource, or it can be a resource other than the ninth resource among all resources on the RB set in the time unit where the ninth resource is located.
  • the first data is data sent by the second terminal device, or data sent by other terminal devices on the shared resource on the first COT, which is not limited in this application.
  • the first terminal device determines the ninth resource.
  • the third condition includes one or more of the following:
  • the first information includes the reservation period (or in other words, the first terminal device obtains the reservation period associated with the first data, or in other words, the first data is periodic data, or in other words, the second terminal device on the first COT
  • the transmission is periodic transmission, or in other words, the first COT has periodic reserved resources
  • the RSRP of the first COT is greater than or equal to the preset threshold
  • the first terminal device receives second information, the second information instructs the first terminal device to determine candidate resources based on the COT.
  • the first terminal device determines to exclude the eighth resource from the candidate resource set; if the fifth condition is not met, the first terminal device determines not to exclude the eighth resource from the candidate resource set.
  • the set of candidate resources excludes the eighth resource.
  • the fifth condition includes: the first terminal device is the receiving end device of the second terminal device, and/or the first terminal device obtains seventh information, the seventh information indicates that the first terminal device does not perform frequency division on the ninth resource. Multiplexing, or the seventh information indicates that the first terminal device The eighth resource is excluded from the candidate resource set, wherein the seventh information comes from the second terminal device or network device, or the seventh information is predefined information or preconfigured information.
  • the fifth condition may also include: the ninth resource intersects with the candidate resource set, and/or the RSRP corresponding to the first COT is greater than or equal to the fifth threshold value.
  • the first terminal device excludes the eighth resource from the candidate resource set, which can satisfy the half-duplex restriction.
  • the first terminal device determines not to exclude the eighth resource from the candidate resource set; if the sixth condition is not met, the first terminal device determines not to exclude the eighth resource from the candidate resource set.
  • the eighth resource is excluded from the resource collection.
  • the sixth condition includes: the first terminal device is not the receiving end device of the second terminal device, and/or the first terminal device obtains the eighth information, the eighth information indicates that the first terminal device does not perform frequency division on the ninth resource. Multiplexing, or the eighth information indicates that the eighth resource is reserved in the candidate resource set, where the eighth information comes from the second terminal device or network device, or the eighth information is predefined information or preconfigured information. It can be understood that the eighth information and the seventh information may be different values of the same information, or may be different information, which is not limited in this application.
  • the following takes a network device as an example to introduce a specific implementation method of the network device sending the eighth information to the first terminal device.
  • the network device may send the first data on the first COT with a higher priority than the second threshold, or the first data sent on the first COT may have a higher channel access priority.
  • the eighth information is sent to the first terminal device.
  • the sixth condition may also include: the priority of the first data sent on the first COT is higher than the first threshold value; or the channel access priority of the first data sent on the first COT level is higher than the second threshold value.
  • the priority of the first data sent by the network device on the first COT is lower than the second threshold, or the channel access priority of the first data sent on the first COT is low.
  • the eighth information is sent to the first terminal device.
  • the sixth condition may also include: the priority of the data sent on the first COT is lower than the first threshold; or the channel access priority of the data sent on the first COT is lower than the first threshold. Two threshold values.
  • frequency division multiplexing between the first terminal device and the second terminal device can be realized, thereby improving the utilization efficiency of the entire system resources and enhancing the performance of the entire system.
  • the first terminal device when the first terminal device determines not to exclude the eighth resource from the candidate resource set, the first terminal device extends one of the cyclic prefix CPEs of the second terminal device in the time slot where the first data is located, as CPE of the eighth resource. Based on this solution, the first terminal device uses the CPE of the transmission of the second terminal device on the time slot where the first data is located to set the CPE of the candidate resource for frequency division multiplexing, instead of using the first terminal device itself to be transmitted.
  • the CPE associated or determined by the message can reduce the impact on the transmission of the second terminal device.
  • the first terminal device uses the first CPE among the multiple CPEs of the plurality of terminal devices in the second terminal device in the time slot where the first data is located as the CPE of the eighth resource, and the first CPE Greater than or equal to the preset threshold value. Based on this solution, the transmission performance of the first terminal device can be improved.
  • the first CPE is the maximum value among the multiple CPEs of multiple terminal devices in the second terminal device on the time slot where the first data is located.
  • the eighth resource is reported to a higher layer of the first terminal device, and the first terminal device's CPE of the eighth resource (for example, First CPE in the example above).
  • the physical layer of the first terminal device (or other layers below the higher layer) reports the eighth resource and the CPE of the first terminal device on the eighth resource to the higher layer of the first terminal device, where,
  • the upper layer of the first terminal device is, for example, the MAC layer of the first terminal device.
  • reporting the eighth resource to the higher layer of the first terminal device may be: reporting the candidate resource set determined by the first terminal device to the higher layer of the first terminal device, where the candidate resource set includes the third resource. Eight resources.
  • the problem of CPE alignment can be solved and the impact on LBT caused by the different timing of the second terminal equipment and the first terminal equipment can be avoided.
  • the synchronization sources of the first terminal device and the second terminal device are the same; and/or the types of synchronization sources of the first terminal device and the second terminal device are the same; and/or the first terminal device and the second terminal device Devices synchronized to synchronization sources of the same type have the same number of forwards.
  • the number of forwardings by the synchronization source includes one or more of the following:
  • the first type of synchronization source is: terminal equipment type synchronization source that is directly synchronized to the satellite;
  • the second type of synchronization source is: a terminal equipment type synchronization source that indirectly synchronizes to the satellite by forwarding it once;
  • the third type of synchronization source is: terminal device synchronization source that directly synchronizes to network equipment;
  • the fourth type of synchronization source is: a terminal device type synchronization source that indirectly synchronizes to the network device by forwarding it once;
  • the fifth type of synchronization source is: terminal equipment synchronization source that synchronizes to the satellite by forwarding twice;
  • the sixth synchronization source is: a terminal device synchronization source that synchronizes to network equipment by forwarding twice;
  • the seventh synchronization source is: the terminal device type synchronization source synchronized to the terminal device itself.
  • the above solution describes a solution in which the first terminal device determines whether to exclude the eighth resource from the candidate resource set based on various circumstances after detecting the first COT of the second terminal device.
  • the first terminal device may further determine whether to exclude reserved resources for the shared time slot on the first COT, which will be described below with reference to examples.
  • the first terminal device candidate resource set excludes the reserved resources of the shared time slot on the first COT.
  • the seventh condition includes the following Two items:
  • the sending device of the shared time slot on the first COT is the first terminal device, or the receiving device of the shared time slot on the first COT is the first terminal device, and the current TB is not the TB to be sent on the shared time slot;
  • the reserved resources of the shared time slot on the first COT intersect with the candidate resource set.
  • the sending device of the shared time slot on the first COT is the first terminal device, which means that the first terminal device sends data in the shared time slot on the first COT;
  • the shared time slot on the first COT The receiving device is the first terminal device, which means that the first terminal device receives data in the shared time slot on the first COT.
  • the first terminal device excludes the candidate resources of the shared time slot on the first COT from the candidate resource combination of the current TB, , thereby avoiding conflicts in resource selection between different TBs, or half-duplex conflicts between sending and receiving.
  • Figure 15 shows an exemplary flowchart of a resource determination method 1500 provided by an embodiment of the present application.
  • the method 1500 may be executed by the first terminal device, or by a component (such as a chip or circuit) of the first terminal device.
  • the method 1500 is executed by the first terminal device as an example for description below. It can be understood that method 1500 can be implemented alone or in combination with other previous embodiments, and is not limited in this application.
  • the first terminal device preferentially excludes the reserved resources of the first M consecutive time units on the first COT from the candidate resource set.
  • the method 1600 is illustrated below in conjunction with each step in Figure 15.
  • the first terminal device receives first information in the sensing window, and the first information indicates the first COT of the second terminal device.
  • the first terminal device determines that the eighth condition is met, the first terminal device excludes reserved resources from the first to the Mth continuous time unit on the first COT from the candidate resource set, where M is greater than Or a positive integer equal to 1;
  • the eighth condition includes: the first to Mth continuous resources on the first COT are used for periodic transmission, and/or the reference signal received power RSRP on the first to Mth continuous time units is less than or equal to the sixth gate limit.
  • the eighth condition further includes: the priority of the first data transmitted on the first to Mth continuous time units on the first COT is greater than or equal to a seventh threshold.
  • the first terminal device may determine to exclude the reserved resources of M time units on the first COT from the candidate resource set, and if the eighth condition is met, exclude the candidate resource set from the candidate resource set. Reserved resources from the first to the Mth continuous time unit on the first COT. In this application, the first terminal device determines to exclude M resources on the first COT from the candidate resource set.
  • the implementation method of reserved resources in time units is not limited.
  • the method 1500 is illustrated below with reference to Figure 16: Assume that the first terminal device determines to exclude the reserved resources of 3 time units on the first COT from the candidate resource set, then if In the case of the eighth condition, the reserved resources of the first three consecutive time units on the first COT of the first terminal device (as shown in Figure 16).
  • the first terminal device preferentially excludes the reserved resources from the first to the Mth continuous time unit on the first COT from the candidate resource set, which can prevent the transmission of the second terminal device on the first COT from being interrupted in the middle. interrupt, thereby improving the transmission performance of the second terminal device.
  • Figure 17 shows an exemplary flowchart of a resource determination method 1700 provided by an embodiment of the present application.
  • the method 1700 may be executed by the first terminal device, or may be executed by a component (such as a chip or circuit) of the first terminal device.
  • the method 1700 is executed by the first terminal device as an example for description below.
  • method 1700 when the first terminal device determines that the candidate source set excludes reserved resources of the first time unit on the first COT, it also excludes reservations on the first COT located between the first time units. resource.
  • the method 1700 is illustrated below in conjunction with each step in Figure 17.
  • the first terminal device receives first information in the sensing window, and the first information indicates the first COT of the second terminal device.
  • the first terminal device determines to exclude the reserved resources of the first time unit on the first COT from the candidate resource set in the selection window, the first terminal device excludes the first time unit on the first COT from the candidate resource set. Reserved resources before the first time unit.
  • the first terminal device excludes reserved resources on the first COT located before the first time unit from the candidate resource set.
  • the ninth condition includes one or more of the following:
  • the transmission priority carried on the first time unit is greater than or equal to the seventh threshold
  • the first terminal device is a receiving device for information transmitted on the first time unit
  • the first time unit is not the last time unit on the first COT.
  • the first terminal device may also exclude reserved resources on the first COT located before the first time unit from the candidate resource set, which is not limited in this application.
  • the method 1700 is illustrated below with reference to Figure 18: Assume that the first terminal device determines to exclude the reserved resources of the third time unit on the first COT from the candidate resource set, then A terminal device excludes the reserved resources of the first three time units on the first COT from the candidate resource set (as shown in Figure 18).
  • the first terminal device determines to exclude the reserved resources of the first time unit, since the transmission opportunity on the first time unit can be successfully transmitted only by carrying the entire first COT, the first terminal device will be located The reserved resources between the first time units are all excluded, which can at least ensure the transmission of the second terminal device in the first time unit, thereby improving the transmission performance of the second terminal device.
  • Figure 19 shows an exemplary flowchart of a resource determination method 1900 provided by an embodiment of the present application.
  • the method 1900 may be executed by the first terminal device, or may be executed by a component (such as a chip or circuit) of the first terminal device.
  • the method 1900 is executed by the first terminal device as an example for description below.
  • method 1900 when the first terminal device determines that the candidate resource set reserves reserved resources for the first time unit, it reserves reserved resources for all time units on the first COT, and the all time units include the first time unit. unit.
  • the method 1900 is illustrated below in conjunction with each step in Figure 19.
  • the first terminal device receives first information in the sensing window, and the first information indicates the first COT of the second terminal device.
  • all time units on the first COT include one or more of the following:
  • the time unit used by the second terminal device to send data on the first COT
  • the time unit used by the second terminal device to send the synchronization signal on the first COT.
  • the first terminal device when the tenth condition is met, does not exclude all the time on the first COT in the candidate resource set. Reserved resources for the unit.
  • the tenth condition includes one or more of the following: the priority of the first time unit in the COT is less than or equal to the eighth threshold; or the priority of the transmission carried in the first time unit is greater than or equal to the ninth threshold value; or, the first time unit is the k-th time in the first COT, and k is less than or equal to the tenth threshold value.
  • the method 1900 is illustrated below with reference to Figure 20: Assume that the first terminal device determines that the candidate resource set does not exclude the reserved resources of the first time unit on the first COT, then The first terminal device does not exclude the reserved resources of all time units on the first COT in the candidate resource set (as shown in Figure 20).
  • the first terminal device when the first terminal device does not exclude the first time unit in the first COT, if the transmission on the first time unit is a transmission with a higher priority in the first COT (greater than the preset threshold), or is located in front of the first COT (such as the first time unit in the first COT), then if the first terminal device does not exclude the reserved resources of the first time unit (that is, the first terminal device occupies the first time unit reserved resources), the transmission on the first COT may be interrupted. At this time, the first terminal device does not exclude the reserved resources on the first COT for all time units, but can improve resource usage efficiency.
  • the interaction between the first terminal device and the second terminal device is mainly used as an example for illustrative description, and the present application is not limited thereto.
  • the methods and operations implemented by the communication device can also be implemented by components (such as chips or circuits) that can be implemented by the communication device.
  • embodiments of the present application also provide corresponding devices, and the devices include modules for executing corresponding modules in each of the above method embodiments.
  • the module can be software, hardware, or a combination of software and hardware. It can be understood that the technical features described in the above method embodiments are also applicable to the following device embodiments.
  • FIG 21 is a schematic block diagram of a communication device 10 provided by an embodiment of the present application.
  • the device 10 includes a transceiver unit 11 .
  • the transceiver unit 11 can be used to implement corresponding communication functions.
  • the transceiver unit 11 may also be called a communication interface or communication unit.
  • the device 10 also includes a processing unit 12 .
  • the processing unit 12 may be used for data processing.
  • the device 10 also includes a storage unit 13, which can be used to store instructions and/or data, and the processing unit 12 can read the instructions and/or data in the storage unit, so that the device implements each of the aforementioned methods. Actions of the terminal device in the embodiment.
  • the device 10 may be the first terminal device in the aforementioned embodiment, or may be a component (such as a chip) of the first terminal device.
  • the device 10 can implement steps or processes corresponding to those performed by the first terminal device in the above method embodiment, wherein the transceiver unit 11 can be used to perform operations related to the transceiver of the first terminal device in the above method embodiment, and the processing unit 12 may be used to perform operations related to processing of the first terminal device in the above method embodiment.
  • the transceiver unit 11 is configured to receive the first information, the first information indicates the first channel occupancy time COT of the second terminal device, and the first COT includes the resources occupied by the first feedback channel; the processing unit 12, The method is used to exclude the reserved resources of the first data associated with the first feedback channel from the candidate resource set in the selection window, and is also used to exclude the reserved resources of the first feedback channel from the candidate resource set.
  • the transceiver unit 11 is configured to receive the first information in the sensing window.
  • the first information indicates the first channel occupancy time COT of the second terminal device, and the reserved resource of the first COT is the first resource.
  • the number of first resources is N1;
  • the processing unit 12 is configured to exclude second resources from the candidate resource set in the selection window, the number of second resources is N2, the second resources include the first resources, and N2 is greater than N1.
  • the transceiver unit 11 is configured to receive the first information in the sensing window, the first information indicates the first COT of the second terminal device, the first COT includes a fifth resource, and the fifth resource is used to send Data, the number of fifth resources is N1, the reserved resource of the first COT is the sixth resource, the number of sixth resources is N2, N2 is greater than N1; the processing unit 12 is used to exclude the third resource from the candidate resource set in the selection window. Seven resources, the seventh resource includes a fifth resource or a sixth resource.
  • the transceiver unit 11 is used to receive the first information in the sensing window, and the first information indicates the first channel occupancy time COT of the second terminal device; the processing unit 12 is used to determine whether to select from the selection window.
  • the eighth resource is excluded from the candidate resource set in , the eighth resource and the ninth resource are located in the same time unit, and the frequency domains of the eighth resource and the ninth resource are different, and the ninth resource is used for the first COT Resources reserved for the first data sent.
  • the transceiver unit 11 is configured to receive the first information in the sensing window, the first information indicating the information of the first channel occupancy time COT of the second terminal device; the processing unit 12 is configured to If it is determined that the eighth condition is met, the reserved resources from the first to the Mth continuous time unit on the first COT are excluded from the candidate resource set, where M is a positive integer greater than or equal to 1, and the selection window is located at the sensing After the window; the eighth condition includes: the first to Mth continuous resources on the first COT are used for periodic transmission, and/or the reference signal received power RSRP on the first to Mth continuous time units is less than or equal to The sixth threshold.
  • the transceiver unit 11 is configured to receive the first information in the sensing window, and the first information is used to indicate the information of the first channel occupancy time COT of the second terminal device; the processing unit 12 is configured to When it is determined to exclude the reserved resources of the first time unit on the first COT from the candidate resource set in the selection window, the reserved resources on the first COT located before the first time unit are excluded from the candidate resource set.
  • the transceiver unit 11 is configured to receive the first information in the sensing window, and the first information is used to indicate the information of the first channel occupancy time COT of the second terminal device; the processing unit 12 is configured to When it is determined that the reserved resources of the first time unit on the first COT are not excluded from the candidate resource set within the selection window, the reserved resources of all time units on the first COT are not excluded from the candidate resource set, the All time units include the first time unit.
  • the device 10 may implement steps or processes corresponding to those executed by the first terminal device in the method embodiments according to the embodiments of the present application.
  • the device 10 may include: executing FIG. 5, FIG. 9, FIG. 11, FIG. 12, and FIG. 13 , the unit of the method executed by the first terminal device in the embodiment shown in FIG. 15, FIG. 17, and FIG. 19.
  • the device 10 may be the second terminal device in the aforementioned embodiment, or may be a component (such as a chip) of the second terminal device.
  • the device 10 can implement steps or processes corresponding to those performed by the second terminal device in the above method embodiment, wherein the transceiver unit 11 can be used to perform operations related to the transceiver of the second terminal device in the above method embodiment, and the processing unit 12 may be used to perform operations related to processing of the second terminal device in the above method embodiment.
  • the processing unit 12 is configured to determine the third resource based on one or more of the following information: the maximum COT length mCOT corresponding to the channel access priority type CAPC of the second terminal device, the second terminal The number of time units occupied by the PSFCH resources configured by the device and the number of resources that need to be shared in the COT.
  • the third resource is the resource reserved by the second terminal device for sending the second data.
  • the number of the third resource is N2.
  • the fourth resource is N2.
  • the number of resources is N1, and N2 is greater than N1; the transceiver unit 11 is configured to send third information to the first terminal device, where the third information indicates the third resource.
  • the device 10 can implement steps or processes corresponding to those executed by the second terminal device in the method embodiments according to the embodiments of the present application.
  • the device 10 can include steps for executing FIG. 5, FIG. 9, FIG. 11, FIG. 12, and FIG. 13. , the unit of the method executed by the second terminal device in the embodiment shown in FIG. 15, FIG. 17, and FIG. 19.
  • the device 10 here is embodied in the form of a functional unit.
  • the term "unit” as used herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor, or a group of processors) used to execute one or more software or firmware programs. processor, etc.) and memory, merged logic circuitry, and/or other suitable components to support the described functionality.
  • ASIC application specific integrated circuit
  • the device 10 can be specifically a terminal device (such as a first terminal device or a second terminal device) in the above embodiments, and can be used to perform the above method embodiments. To avoid duplication, the various processes and/or steps corresponding to the terminal device will not be described again here.
  • the device 10 of each of the above solutions has the function of realizing the corresponding steps performed by the terminal device (such as the first terminal device, and such as the second terminal device) in the above method.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiving unit. (machine replacement), other units, such as processing units, etc., can be replaced by processors to respectively perform the sending and receiving operations and related processing operations in each method embodiment.
  • transceiver unit 11 may also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.
  • the device in FIG. 21 may be the device in the aforementioned embodiment, or it may be a chip or a chip system, such as a system on chip (SoC).
  • SoC system on chip
  • the transceiver unit can be an input/output circuit or a communication interface
  • the processing unit is the core On-chip integrated processor or microprocessor or integrated circuit. No limitation is made here.
  • Figure 22 is a schematic block diagram of a communication device 20 provided by an embodiment of the present application.
  • the device 20 includes a processor 21 coupled to a memory 22 .
  • a memory 22 is also included for storing computer programs or instructions and/or data.
  • the processor 21 is used to execute the computer programs or instructions stored in the memory 22, or read the data stored in the memory 22 to execute the above. Methods in Method Examples.
  • processors 21 there are one or more processors 21 .
  • the memory 22 is integrated with the processor 21 or is provided separately.
  • the device 20 also includes a transceiver 23, which is used for receiving and/or transmitting signals.
  • the processor 21 is used to control the transceiver 23 to receive and/or transmit signals.
  • the device 20 is used to implement the operations performed by the terminal device in each of the above method embodiments.
  • the processor 21 is used to execute computer programs or instructions stored in the memory 22 to implement related operations of the first terminal device or the second terminal device in each of the above method embodiments.
  • each step of the above method can be completed by instructions in the form of hardware integrated logic circuits or software in the processor 21 .
  • the method disclosed in conjunction with the embodiments of the present application can be directly implemented by a hardware processor for execution, or can be executed by a combination of hardware and software modules in the processor.
  • the software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field.
  • the storage medium is located in the memory 22.
  • the processor 21 reads the information in the memory 22 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the processor may be one or more integrated circuits, used to execute relevant programs to execute the method embodiments of the present application.
  • a processor may include one or more processors and be implemented as a combination of computing devices.
  • the processor may include one or more of the following: microprocessor, microcontroller, digital signal processor (digital signal processor, DSP), digital signal processing device (digital signal processing device, DSPD), application specific integrated circuit (application specific integrated circuit (ASIC), field programmable gate array (FPGA), programmable logic device (PLD), gate logic, transistor logic, discrete hardware circuits, processing circuits or other suitable Hardware, firmware, and/or a combination of hardware and software to perform the various functions described in this disclosure.
  • the processor may be a general purpose processor or a special purpose processor.
  • the processor 21 may be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data.
  • the central processing unit may be used to cause the device to execute software programs and process data in the software programs.
  • a portion of the processor may include non-volatile random access memory.
  • the processor may also store information about the device type.
  • Program in this application is used in a broad sense to mean software.
  • software include: program code, programs, subroutines, instructions, sets of instructions, code, code segments, software modules, applications, or software applications, and the like.
  • Programs can run on a processor and/or computer. To cause the device to perform various functions and/or processes described in this application.
  • Memory may store data required by a processor (eg, processor 21) when executing software.
  • the memory may be implemented using any suitable storage technology.
  • memory may be any available storage medium accessible to the processor and/or computer.
  • Non-limiting examples of storage media include: random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EPROM, EEPROM), optical disks Read-only memory (Compact Disc-ROM, CD-ROM), static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM) , double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) and Direct rambus RAM (DR RAM), removable media, optical disk storage, magnetic disk storage media, magnetic storage devices, flash memory, registers, state memory, remote mount
  • RAM
  • the memory eg, memory 22
  • the processor eg, processor 21
  • the memory may be used in connection with the processor to enable the processor to read information from the memory, store and/or write information in the memory.
  • the memory can be integrated into the processor.
  • the memory and processor may be provided in an integrated circuit (for example, the integrated circuit may be provided in a UE or in other network nodes).
  • FIG. 23 is a schematic block diagram of a chip system 30 provided by an embodiment of the present application.
  • the chip system 30 (or can also be called a processing system) includes a logic circuit 31 and an input/output interface 32.
  • the logic circuit 31 may be a processing circuit in the chip system 30 .
  • the logic circuit 31 can be coupled to the memory unit and call instructions in the memory unit, so that the chip system 30 can implement the methods and functions of various embodiments of the present application.
  • the input/output interface 32 can be an input/output circuit in the chip system 30, which outputs information processed by the chip system 30, or inputs data or signaling information to be processed into the chip system 30 for processing.
  • the chip system 30 is used to implement the operations performed by the terminal device in each of the above method embodiments.
  • the logic circuit 31 is used to implement processing-related operations performed by the first terminal device in the above method embodiment, such as Figure 5, Figure 9, Figure 11, Figure 12, Figure 13, Figure 15, Figure 17, Figure The processing-related operations performed by the first terminal device in the embodiment shown in 19;
  • the input/output interface 32 is used to implement the sending and/or reception-related operations performed by the first terminal device in the above method embodiment, such as, The first terminal device in the embodiment shown in Figure 5, Figure 9, Figure 11, Figure 12, Figure 13, Figure 15, Figure 17, and Figure 19 performs sending and/or reception related operations.
  • the logic circuit 31 is used to implement the processing-related operations performed by the second terminal device in the above method embodiment, such as the processing-related operations performed by the second terminal device in the embodiment shown in Figure 11; input/output
  • the interface 32 is used to implement the sending and/or receiving related operations performed by the second terminal device in the above method embodiment, such as the sending and/or receiving related operations performed by the second terminal device in the embodiment shown in Figure 11 operate.
  • Embodiments of the present application also provide a computer-readable storage medium on which are stored computer instructions for implementing the methods executed by a terminal device (such as a first terminal device or a second terminal device) in each of the above method embodiments.
  • a terminal device such as a first terminal device or a second terminal device
  • Embodiments of the present application also provide a computer program product that includes instructions that, when executed by a computer, implement the methods executed by a terminal device (such as a first terminal device or a second terminal device) in each of the above method embodiments.
  • a terminal device such as a first terminal device or a second terminal device
  • An embodiment of the present application also provides a communication system, which includes the first terminal device and the second terminal device in the above embodiments.
  • the disclosed devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the above units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or may be Integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described above as separate components may or may not be physically separated.
  • the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement the solution provided by this application.
  • each functional unit in each embodiment of the present application can be integrated into one unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer may be a personal computer, a server, or a network device.
  • Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, e.g., computer instructions may be transmitted from a website, computer, server or data center via a wired link (e.g.
  • Coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless means to transmit to another website site, computer, server or data center.
  • DSL digital subscriber line
  • wireless such as infrared, wireless, microwave, etc.

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Abstract

本申请提供了一种资源确定的方法和装置，该方法可以包括：第一终端设备在感知窗中接收到第一信息，该第一信息指示第二终端设备的第一信道占用时间COT，该第一COT包括第一反馈信道占用的资源；该第一终端设备从选择窗中的候选资源集合中排除该第一反馈信道关联的第一数据的预留资源，并且，该第一终端设备从该候选资源集合中排除该第一反馈信道的预留资源。通过上述方案，可以使得第一终端设备确定候选资源，并且提高第一数据的反馈性能。

Description

资源确定的方法和装置
本申请要求于2022年9月30日提交中国国家知识产权局、申请号为202211217121.2、申请名称为“资源确定的方法和装置”的中国专利申请的优先权，本申请要求于2022年9月7日提交中国专利局、申请号为202211087432.1、申请名称为“一种资源确定方法及设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种资源确定的方法和装置。
背景技术
在无线通信系统中，频谱资源可以分为授权频谱和非授权频谱。目前，在侧行链路(sidelink，SL)通信中，使能非授权频谱是一个重要演进方向。
在非授权频谱中，终端设备可基于竞争的方式使用频谱资源。因此，在非授权频谱上进行SL通信时，终端设备如何确定候选资源，是当前需要考虑的问题。
发明内容
本申请提供了一种资源确定的方法和装置，用以第一终端设备确定候选资源。
第一方面，提供了一种资源确定的方法，该方法可以由第一终端设备执行，也可以由第一终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以第一终端设备执行为例进行说明。
该方法包括：第一终端设备在感知窗中接收到第一信息，第一信息指示第二终端设备的第一信道占用时间COT，第一COT包括第一反馈信道占用的资源；第一终端设备从选择窗中的候选资源集合中排除第一反馈信道关联的第一数据的预留资源，并且，第一终端设备从候选资源集合中排除第一反馈信道的预留资源。
基于上述方案，第一终端设备从选择窗中的候选资源集合，既排除第一数据的预留资源，又排除第一数据关联的第一反馈信道的预留资源，从而使得用于传输第一数据的反馈信息的资源得以保留，从而保障第一数据的反馈性能。
在一种可能的实现方式中，第一方面所提供的方法还可以描述为：在第一终端设备在选择窗中的候选资源集合排除第一反馈资源关联的第一数据的预留资源的情况下，第一终端设备在候选资源集合排除第一反馈资源的预留资源；在第一终端设备在选择窗中的候选资源集合保留第一反馈资源关联的第一数据的预留资源的情况下，第一终端设备在候选资源集合保留第一反馈资源的预留资源。
结合第一方面，在第一方面的某些实现方式中，第一数据位于第一COT和/或第二COT，第二COT在第一COT之前。
基于上述方案，本申请提供的方案既适用于第一数据位于第一COT的场景，也适用于第一数据不位于第一COT的场景。
结合第一方面，在第一方面的某些实现方式中，第一终端设备从选择窗中的候选资源集合中排除第一反馈信道关联的第一数据的预留资源，并且，第一终端设备从候选资源集合中排除第一反馈信道的预留资源，包括：在满足第一条件的情况下，第一终端设备在候选资源集合排除第一反馈资源的预留资源，并且，第一终端设备在候选资源集合排除第一反馈资源的预留资源；第一条件包括：第一终端设备获取到第二数据关联的预留周期；第二数据的参考信号接收功率RSRP大于或等于第一门限值，其中，第二数据为第一数据，或者第二数据与第一数据位于同一COT上。第一终端设备获取到第二数据关联的预留周期，还可以描述为：用于指示第二数据的信息中包括预留周期，或者，第二数据存在对应的预留资源，或者，第二数据为周期性数据。
基于上述方案，第一终端设备可以在满足第一条件的情况下，才排除第一反馈信道的预留资源，从而可以使得第一反馈信道的预留资源能够用于传输第一数据的反馈信息，提高第二终端设备传输第 一数据的整体性能。换句话说，第一终端设备可以在不满足第一条件的情况下，不排除第一反馈信道的预留资源，这样第一终端设备便可以采用第一反馈信道的预留资源进行传输，可以提高第一终端设备可用的候选资源的数量，提高第一终端设备的传输性能。
结合第一方面，在第一方面的某些实现方式中，该第一条件还包括：第二数据的预留资源与资源选择窗中的候选资源集合有交集。
结合第一方面，在第一方面的某些实现方式中，第一终端设备在候选资源集合中排除第一反馈信道的预留资源，包括：所述第一终端设备从所述候选资源集合中排除第一时间单元上的部分或全部频域资源，其中，所述第一反馈信道的预留资源位于所述第一时间单元，所述部分或全部频域资源包括所述第一反馈信道的预留资源所在的资源块集合。
基于上述方案，第一终端设备确定在候选资源集合排除第一反馈信道的预留资源的情况下，可以直接将第一反馈信道的预留资源所在的第一时间单元上的资源排除，从而进一步提高第一数据的反馈性能。
结合第一方面，在第一方面的某些实现方式中，第一反馈信道的预留资源包括用于反馈第一COT的共享资源内的数据的预留资源。
基于上述方案，通过排除第一反馈信道对应的预留资源，可以防止中断第一COT的预留资源上的反馈资源，提高第二终端设备在第一COT上的传输性能。
结合第一方面，在第一方面的某些实现方式中，该方法还包括：第一终端设备从候选资源集合中，排除第一COT上位于第一反馈信道所在的第一时间单元之前的预留资源。
基于上述方案，在第一终端设备从候选资源集合排除第一反馈信道的预留资源的情况下，由于第一反馈信道的预留资源所在的第一时间单元上的传输机会，需要搭载于整个第一COT内才能成功传输，因此，如果将第一COT上位于第一时间单元之前的预留资源排除，则至少可以保障第二终端设备在第一时间单元上成功发送，从而提高传输性能。
结合第一方面，在第一方面的某些实现方式中，第一终端设备从候选资源集合中，排除第一COT上位于第一反馈信道所在时间单元之前的预留资源，包括：在满足第二条件的情况下，第一终端设备在候选资源集合中，排除第一COT上位于第一反馈信道所在时间单元之前的预留资源，第二条件包括以下一项或多项：第一反馈信道上承载的传输优先级大于或等于第一门限值，或，第一终端设备为第一反馈信道对应的接收设备。
基于上述方案，如果第一反馈信道上承载的传输优先级大于或等于第一门限值，则第一终端设备在候选资源集合，排除第一COT上位于第一时间单元之前的预留资源，这样可以进一步保障第二终端设备在第一时间单元上传输的成功率。
结合第一方面，在第一方面的某些实现方式中，该方法还包括：第一终端设备获取第二信息，第二信息指示第一终端设备基于COT确定候选资源，第二信息来自第二终端设备或网络设备，或第二信息为预定义的信息或预配置的信息。
基于上述方案，第一终端设备可以根据获取到的第二信息，确定基于COT来确定候选资源。
结合第一方面，在第一方面的某些实现方式中，第一数据的预留资源是根据第一数据的频域资源、时域资源以及第一数据对应的侧行链路控制信息SCI指示的预留周期确定的资源。
作为一种示例，第一数据对应的预留资源所在的时隙为其中，q为正整数，m为第一数据所在的时隙，P′rsvp_RX为第一数据的预留周期或第一数据所在的第一COT的预留周期。第一数据对应的预留资源中的频域资源与第一数据的频域资源相同。
第二方面，提供了一种资源确定的方法，该方法可以由第一终端设备执行，也可以由第一终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以第一终端设备执行为例进行说明。
该方法包括：第一终端设备在感知窗中接收到第一信息，第一信息指示第二终端设备的第一信道占用时间COT，第一COT的预留资源为第一资源，第一资源的数量为N1；第一终端设备在选择窗中的候选资源集合中排除第二资源，第二资源的数量为N2，第二资源包括第一资源，且N2大于N1。
基于上述方案，第一终端设备在候选资源集合中排除的资源的数量，大于第一COT的预留资源的数量，从而可以为第二终端设备预留更多资源进行传输，提高第二终端设备的传输性能，减少因资源冲突导致第二终端设备的一些数据或信息发送失败的概率。
结合第二方面，在第二方面的某些实现方式中，第一终端设备在选择窗中的候选资源集合中排除第二资源，包括：第一终端设备在确定在第一COT或第一COT所在的资源池上传输的数据使能了物理侧行链路反馈信道PSFCH反馈的情况下，第一终端设备在候选资源集合中排除第二资源。
基于上述方案，在第一COT或第一COT所在的资源池上传输的数据使能了PSFCH反馈的情况下，第一终端设备在候选资源集合排除N2个第二资源，从而可以为第二终端设备预留相较第一资源更多的资源，这部分多出来的资源可以用于第二终端设备发送第一COT，或第一COT之前的其他COT的反馈信息，从而可以提高第二终端设备的传输性能。
结合第二方面，在第二方面的某些实现方式中，N2根据以下信息中的一项或多项确定：第一COT对应的反馈周期、N1的值、第一COT上共享时隙的数量。
作为一种示例，N2的值与第一COT对应的周期对应，即第一COT对应的反馈周期越大，N2值越大，反之则N2越小。
作为另一种示例，N2的值与N1的值对应，N1的值越大，则N2的值也越大，且N2与N1的差值也越大。
作为又一种示例，N2的值与第一COT中的共享时隙的数量相对应，在第一COT上共享时隙越大，N2的值也越大，反之N2越小。
基于上述方案，第一终端设备可以根据第一COT上的实际传输需求，确定N2的值，既可以提高第二终端设备在第一COT(或其他终端设备在第一COT的共享时隙)上的传输性能，又能提高资源利用率，减少资源浪费。
第三方面，提供了一种资源确定的方法，该方法可以由第二终端设备执行，也可以由第二终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以第二终端设备执行为例进行说明。
该方法包括：第二终端设备根据以下信息中的一项或多项确定第三资源：第二终端设备的信道接入优先级类型CAPC对应的最大COT长度mCOT、第二终端设备配置的PSFCH资源所占用的时间单元数、需共享COT的资源数，其中，第三资源为第二终端设备为发送第二数据预留的资源，该第三资源包括第四资源，该第四资源为第二终端设备发送第二数据的资源，第三资源的数量为N2，第四资源的数量为N1，N2大于N1；第二终端设备向第一终端设备发送第三信息，第三信息指示第三资源。
基于上述方案，第二终端设备预留比实际传输的资源更多的资源，以便第二终端设备后续有足够的资源进行传输(如传输反馈信息)，从而提高第二终端设备的传输性能。
结合第三方面，在第三方面的某些实现方式中，在第二终端设备向第一终端设备发送第三信息之前，该方法还包括：第二终端设备接收第四信息，第四信息指示第二终端设备向第一终端设备发送第三信息。
作为一种示例，第二终端设备接收到来自网络设备的该第四信息。
基于上述方案，第二终端设备可以根据接收到的第四信息，向第一终端设备发送第三信息，以便第一终端设备能够根据第二终端设备的预留资源，确定候选资源，从而可以减小第一终端设备和第二终端设备之间的传输产生冲突的风险。
结合第三方面，在第三方面的某些实现方式中，第三信息直接指示第三资源，或者，第三信息指示第四资源以及N3的值，N3为N2与N1之间的差值。
基于上述方案，第二终端设备可以通过第三信息直接指示第三资源，可以节省开销，提高指示的效率；或者，也可以通过第三信息间接指示第三资源，从而可以使得第一终端设备根据第四资源以及N3的值，根据实际需要自行确定第三资源，有利于提高资源利用率。
结合第三方面，在第三方面的某些实现方式中，该方法还包括：第二终端设备向第一终端设备发送第五信息，第五信息指示第一终端设备在选择窗中的候选资源集合排除的资源数量，资源数量为N2或N1。
基于上述方案，第二终端设备可以通过第五信息向第一终端设备指示在候选资源集合排除的资源的数量，从而可以使得第一终端设备能够根据该第五信息，确定候选资源，避免第一终端设备无法确定要排除的资源的数量，导致候选资源确定失败，或确定的候选资源无法适应第二终端设备的传输需求的情况(例如，第一终端设备在自行确定的候选资源中传输可能会与第二终端设备的传输产生冲突)。
第四方面，提供了一种资源确定的方法，该方法可以由第一终端设备执行，也可以由第一终端设 备的组成部件(例如芯片或者电路)执行，为了方便，下面以第一终端设备执行为例进行说明。
该方法包括：第一终端设备在感知窗中接收到第一信息，第一信息指示第二终端设备的第一COT，第一COT包括第五资源，第五资源用于发送数据，第五资源的数量为N1，第一COT的预留资源为第六资源，第六资源的数量为N2，N2大于N1；第一终端设备从选择窗中的候选资源集合排除第七资源，第七资源包括第五资源或第六资源。
基于上述方案，第一COT的预留资源的数量(N2)大于第一COT上传输数据的资源的数量(N1)，第一终端设备可以根据实际需求在候选资源集合中排除N2个资源或N1个资源，从而提高资源利用率，降低资源冲突的风险。
结合第四方面，在第四方面的某些实现方式中，该方法还包括：第一终端设备确定N3。
结合第四方面，在第四方面的某些实现方式中，第一终端设备确定N3，包括：第一终端设备接收来自网络设备或第二终端设备的第六信息；第一终端设备根据第六信息确定N3。
基于上述方案，网络设备或第二终端设备可以通过第六信息指示第一终端设备在候选资源集合排除的资源的数量，从而可以使得第一终端设备能够根据该第六信息确定候选资源。
结合第四方面，在第四方面的某些实现方式中，第一终端设备确定N3，包括：在第一COT的固定比特率CBR大于或等于第四门限值的情况下，第一终端设备确定N3的值为N2，否则第一终端设备确定N3的值为N1；或者，在第一COT使能了混合自动重传请求HARQ的情况下，第一终端设备确定N3的值为N2，否则第一终端设备确定N3的值为N1；或者，在第一COT上配置的PSFCH资源的数量或PSFCH资源周期为第一取值的情况下，第一终端设备确定N3的值为N2，在第一COT上配置的PSFCH资源数量或PSFCH资源周期为第二取值的情况下，第一终端设备确定N3的值为N1；或者，在第一COT的预留资源包括共享资源或反馈资源的情况下，第一终端设备确定N3的值为N2，否则第一终端设备确定N3的值为N1。
基于上述方案，在第一COT的预留资源的数量(记为N2)大于第一COT上传输数据的资源的数量(记为N1)的情况下，第一终端设备可以根据相应的方法或规则，确定是按照N1来排除资源，还是按照N2排排除资源，从而从接收侧的角度能够以与第二终端设备需求匹配的方式排除相应的资源，以便第二终端设备在下次传输时有足够的资源可以用于传输，从而提高第二终端设备的传输性能。
第五方面，提供了一种资源确定的方法，该方法可以由第一终端设备执行，也可以由第一终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以第一终端设备执行为例进行说明。
该方法包括：第一终端设备在感知窗中接收到第一信息，第一信息指示第二终端设备的第一信道占用时间COT；第一终端设备确定是否从选择窗中的候选资源集合中排除第八资源，第八资源与第九资源位于同一时间单元，且第八资源与第九资源的频域不同，第九资源是第一COT上发送的第一数据的预留资源。
第一终端设备在候选资源集合排除第八资源，指的是第一终端设备不在与第九资源频分的资源上发送数据/信息，或者说，第一终端设备不在第九资源上进行频分复用；第一终端设备不在候选资源集合排除第八资源，指的是第一终端设备在与第九资源频分的资源上发送数据/信息，或者说，第一终端设备在第九资源上进行频分复用。
基于上述方案，第一终端设备检测到第一COT之后，判断是否在第一COT上发送的第一数据预留的资源上进行频分复用，从而尽可能提高资源利用率。
结合第五方面，在第五方面的某些实现方式中，该方法还包括：在满足第三条件的情况下，第一终端设备确定第一COT上发送的第一数据的预留资源；其中，第三条件包括以下一项或多项：指示第一数据的信息中包括预留周期，或指示第一COT的信息中包括预留周期；第一终端设备在感知窗中检测到的第一数据的RSRP大于或等于第一门限值；第一终端设备获取了第四信息，第四信息用于指示第一终端设备基于COT的结构选择候选资源。
基于上述方案，第一终端设备可以在满足某些条件的情况下，确定第一数据的预留资源，以便能够判断是否在第一数据的预留资源上进行频分复用，从而尽可能提高资源利用率。
结合第五方面，在第五方面的某些实现方式中，第一数据的预留资源所在的时隙为其中：q为正整数，m为第一数据所在的时隙，P′rsvp_RX为第一数据的预留周期或第一COT的预留周期。
结合第五方面，在第五方面的某些实现方式中，第一数据的预留资源是根据第一数据的频域资源、 时域资源以及第一数据对应的侧行链路控制信息SCI指示的预留周期确定的资源。
结合第五方面，在第五方面的某些实现方式中，第一终端设备确定是否从选择窗中的候选资源集合中排除第八资源，包括：在满足第五条件的情况下，第一终端设备确定在候选资源集合中排除第八资源；第五条件包括：第一终端设备为第二终端设备的接收端设备，和/或第一终端设备获取到第七信息，第七信息指示第一终端设备不在第七资源上进行频分复用，第七信息来自第二终端设备或网络设备，或第七信息为预定义的信息或预配置的信息。
结合第五方面，在第五方面的某些实现方式中，该方法还包括：在不满足第五条件的情况下，第一终端设备确定不在候选资源集合排除第八资源。
基于上述方案，可以在某些情况下，实现第一终端设备和第二终端设备之间的频分复用，从而提升了整个系统资源的利用效率，增强了整个系统的性能。
结合第五方面，在第五方面的某些实现方式中，第一终端设备确定是否从选择窗中的候选资源集合中排除第八资源，包括：在满足第六条件的情况下，第一终端设备确定在候选资源集合中不排除第八资源；第六条件包括：第一终端设备不是第二终端设备的接收端设备，和/或第一终端设备获取到第八信息，第八信息指示第一终端设备在第一数据的预留资源上进行频分复用，第八信息来自第二终端设备或网络设备，或第八信息为预定义的信息或预配置的信息。
结合第五方面，在第五方面的某些实现方式中，该方法还还包括：在不满足第六条件的情况下，第一终端设备确定不再候选资源集合中排除该第八资源。
基于上述方案，可以在某些情况下，实现第一终端设备和第二终端设备之间的频分复用，从而提升了整个系统资源的利用效率，增强了整个系统的性能。
结合第五方面，在第五方面的某些实现方式中，第六条件还包括：第一COT上发送的第一数据的优先级高于第二门限值；或，第一COT上发送的第一数据的信道接入类型高于第三门限值。
基于上述方案，只有优先级较高的传输才可以进行频分复用，以增加潜在的高优先级传输的资源数量。
结合第五方面，在第五方面的某些实现方式中，第六条件还包括：第一COT上发送的第一数据的优先级低于第二门限值；或，第一COT上发送的第一数据的信道接入优先级低于第三门限值。
基于上述方案，优先级较低的传输才可以进行频分复用，若是在频分复用的过程中，被频分复用的更高优先级的传输阻塞，造成的损失也相对较小。
结合第五方面，在第五方面的某些实现方式中，该方法还包括：第一终端设备将第二终端设备在第一数据所在时隙的循环前缀扩展CPE中的一个，作为第八资源的CPE。
基于该方案，第一终端设备使用第二终端设备在第一数据所在时隙上的传输的CPE来设置用于频分复用的候选资源的CPE，而不再使用第一终端设备自己待传输的消息所关联或确定的CPE，从而可以减少对第二终端设备传输的影响。
结合第五方面，在第五方面的某些实现方式中，第一终端设备将第二终端设备在第一数据所在时隙的循环前缀扩展CPE中的一个，作为第八资源的CPE，包括：
第一终端设备将第二终端设备中的多个终端设备在第一数据所在的时隙上的多个CPE中第一CPE，作为第八资源的CPE，第一CPE大于或等于第一门限值。
基于上述方案，可以提高第一终端设备传输的性能。
结合第五方面，在第五方面的某些实现方式中，第一CPE为第二终端设备中的多个终端设备在第一数据所在时隙上的多个CPE中的最大值。
结合第五方面，在第五方面的某些实现方式中，该方法还包括：
第一终端设备向第一终端设备的高层上报第八资源，以及第一终端设备在第六资源的CPE。
基于上述方案，可以解决CPE对齐的问题，避免因为第二终端设备与第一终端设备的定时不同对LBT带来的影响。
结合第五方面，在第五方面的某些实现方式中，第一数据为第二终端设备发送的数据，或者是其他终端设备在第一COT上的共享资源上发送的数据。
基于上述方案，第五方面所提供的方案适用于第一数据为第二终端设备发送的数据的场景，也适用于第一数据为其他终端设备发送的数据的场景。
结合第五方面，在第五方面的某些实现方式中，其特征在于，第一终端设备与第二终端设备的同步源相同；和/或，第一终端设备与第二终端设备的同步源的类型相同；和/或，第一终端设备与第二终端设备同步到相同类型的同步源的转发次数相同。
基于上述方案，通过设置第一终端设备和第二终端设备的同步源相同(或同步源类型)，可以确保第一终端设备和第二终端设备之间无定时差，从而避免了因定时差而导致的第一终端设备的传输和第二终端设备的传输相互阻塞的问题。
第六方面，提供了一种资源确定的方法，该方法可以由第一终端设备执行，也可以由第一终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以第一终端设备执行为例进行说明。
该方法包括：第一终端设备在感知窗中接收到第一信息，该第一信息指示第二终端设备的第一信道占用时间COT的信息；在第一终端设备确定满足第八条件的情况下，第一终端设备在候选资源集合排除第一COT上的第一个至第M个连续时间单元的预留资源，其中，M为大于或等于1的正整数，选择窗位于感知窗之后；第八条件包括：第一COT上的第一个至第M个连续时间单元用于周期传输，和/或M个连续时间单元上的参考信号接收功率RSRP小于或等于第六门限值。
基于上述方案，第一终端设备优先在候选资源集合排除第一COT上的前面的M个连续时间单元的预留资源，可以防止第二终端设备在第一COT上的传输在中间被中断，从而提高第二终端设备的传输性能。
结合第六方面，在第六方面的某些实现方式中，第八条件还包括：第一COT上的前面的M个连续时间单元上传输的第一数据的优先级大于或等于第七门限。
基于上述方案，在第一COT上的前面的M个连续时间单元上承载的传输优先级较高的情况下，优先在候选资源集合排除该M个连续的时间单元，可以优先保障优先级较高的传输能够成功进行，提高第二终端设备(或者也可能是其他终端设备)在该M个连续时间单元上的传输性能。
第七方面，提供了一种资源确定的方法，该方法可以由第一终端设备执行，也可以由第一终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以第一终端设备执行为例进行说明。
该方法包括：第一终端设备在感知窗中接收到第一信息，第一信息用于指示第二终端设备的第一信道占用时间COT的信息；在第一终端设备确定从选择窗中的候选资源集合排除第一COT上的第一时间单元的预留资源的情况下，第一终端设备从候选资源集合中，排除第一COT上位于第一时间单元之前的预留资源。
基于上述方案，在第一终端设备确定排除第一时间单元的预留资源的情况下，由于第一时间单元上的传输机会搭载整个第一COT才能被成功传输，因此，第一终端设备将位于第一时间单元之间的预留资源都排除，至少可以保障第二终端设备在第一时间单元上的传输，从而提高第二终端设备的传输性能。
结合第七方面，在第七方面的某些实现方式中，第一终端设备从候选资源集合中，排除第一COT上位于第一时间单元之前的预留资源，包括：在满足第九条件的情况下，第一终端设备从候选资源集合中，排除第一COT上位于第一时间单元之前的预留资源；第九条件包括以下一项或多项：第一时间单元上承载的传输优先级大于或等于第七门限值；第一终端设备为第一时间单元上传输的信息的接收设备；第一时间单元不是第一COT上的最后一个时间单元。
基于上述方案，第一终端设备可以在满足一定条件的情况下，在候选资源集合中，排除第一COT上位于第一时间单元之前的预留资源。例如，在第一时间单元上承载的传输优先级较高的情况下，排除第一时间单元之前的预留资源，则可以保障该优先级较高的传输能够成功进行，从而提高传输性能。
第八方面，提供了一种资源确定的方法，该方法可以由第一终端设备执行，也可以由第一终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以第一终端设备执行为例进行说明。
该方法包括：第一终端设备在感知窗中接收到第一信息，第一信息用于指示第二终端设备的第一信道占用时间COT的信息；在第一终端设备确定在选择窗内的候选资源集合中不排除第一COT上的第一时间单元的预留资源的情况下，第一终端设备从候选资源集合中不排除第一COT上的全部时间单元的预留资源，该全部时间单元包括第一时间单元。
基于上述方案，当第一终端设备不排除第一COT中的第一时间单元，第一终端设备不排除第一COT上全部时间单元的预留资源，避免第一COT上的传输被中断，导致部分资源浪费的问题，从而能 够提升资源的使用效率。
结合第八方面，在第八方面的某些实现方式中，第一COT上的全部时间单元包括以下中的一种或多种：第一COT上用于第二终端设备发送数据的时间单元；第一COT上由第二终端设备共享给其他终端设备发送数据的时间单元；第一COT上用于第二终端设备传输反馈信息的时间单元；第一COT上用于第二终端设备发送同步信号的时间单元。
结合第八方面，在第八方面的某些实现方式中，第一终端设备在候选资源集合不排除第一COT上的全部时间单元的预留资源，包括：在满足第十条件的情况下，第一终端设备在候选资源集合不排除第一COT上的全部时间单元的预留资源；第十条件包括以下一项或多项：第一时间单元在COT中的优先级小于或等于第八门限值；或者，第一时间单元中承载的传输的优先级大于或等于第九门限值；或者，第一时间单元为第一COT中的第k个时间单元，k小于或等于第十门限值。
基于上述方案，当第一终端设备不排除第一COT中的第一时间单元，若第一时间单元上的传输为第一COT中优先级较高的传输(大于预设门限值)，或者是位于第一COT中的前面(如第一COT中的第一个时间单元)，则如果第一终端设备不排除第一时间单元的预留资源(即第一终端设备占用了第一时间单元的预留资源)，则可能导致第一COT上的传输被中断，这个时候，第一终端设备不排除第一COT上全部时间单元的预留资源，反而能够提升资源的使用效率。
结合第八方面，在第八方面的某些实现方式中，该方法还包括：第一终端设备获取到第九信息，第九信息指示第一终端设备基于COT确定候选资源，第九信息来自第二终端设备或网络设备，或第九信息为预定义的信息或预配置的信息。
基于上述方案，第一终端设备可以根据第一信息，确定基于COT来确定候选资源。
第九方面，提供一种通信装置，该装置用于执行上述第一方面至第八方面任一种可能实现方式中的方法。具体地，该装置可以包括用于执行第一方面至第八方面任一种可能实现方式中的方法的单元和/或模块，如处理单元和/或通信单元。
在一种实现方式中，该装置为终端设备(如第一终端设备，又如第二终端设备)。当该装置为终端设备时，通信单元可以是收发器，或，输入/输出接口；处理单元可以是至少一个处理器。可选地，收发器可以为收发电路。可选地，输入/输出接口可以为输入/输出电路。
在另一种实现方式中，该装置为用于终端设备(如第一终端设备，又如第二终端设备)的芯片、芯片系统或电路。当该装置为用于终端设备的芯片、芯片系统或电路时，通信单元可以是该芯片、芯片系统或电路上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等；处理单元可以是至少一个处理器、处理电路或逻辑电路等。
第十方面，提供一种通信装置，该装置包括：至少一个处理器，用于执行存储器存储的计算机程序或指令，以执行上述第一方面至第四方面任一种可能实现方式中的方法。可选地，该装置还包括存储器，用于存储的计算机程序或指令。可选地，该装置还包括通信接口，处理器通过通信接口读取存储器存储的计算机程序或指令。
在一种实现方式中，该装置为终端设备(如第一终端设备，又如第二终端设备)。
在另一种实现方式中，该装置为用于终端设备(如第一终端设备，又如第二终端设备)的芯片、芯片系统或电路。
第十一方面，本申请提供一种处理器，用于执行上述第一方面至第八方面提供的方法。
对于处理器所涉及的发送和获取/接收等操作，如果没有特殊说明，或者，如果未与其在相关描述中的实际作用或者内在逻辑相抵触，则可以理解为处理器输出和接收、输入等操作，也可以理解为由射频电路和天线所进行的发送和接收操作，本申请对此不做限定。
第十二方面，提供一种计算机可读存储介质，该计算机可读介质存储用于设备执行的程序代码，该程序代码包括用于执行上述第一方面至第八方面任一种可能实现方式中的方法。
第十三方面，提供一种包含指令的计算机程序产品，当该计算机程序产品在计算机上运行时，使得计算机执行上述第一方面至第八方面任一种可能实现方式中的方法。
第十四方面，提供一种通信系统，包括前述的第一终端设备和第二终端设备。
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图15示出了本申请实施例提供的候选资源的确定方法1500的示例性流程图。
图16示出了本申请实施例提供的一种候选资源的确定方法的示意图。
图17示出了本申请实施例提供的候选资源的确定方法1700的示例性流程图。
图18示出了本申请实施例提供的一种候选资源的确定方法的示意图。
图19示出了本申请实施例提供的候选资源的确定方法1900的示例性流程图。
图20示出了本申请实施例提供的一种候选资源的确定方法的示意图。
图21是本申请实施例提供的一种通信装置700的示意性框图。
图22是本申请实施例提供的一种通信装置800的示意性框图。
图23是本申请实施例提供的一种芯片系统900的示意性框图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。
本申请提供的技术方案可以应用于各种通信系统，例如：第五代(5th generation，5G)或新无线(new radio，NR)系统、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)系统等。本申请提供的技术方案还可以应用于未来的通信系统，如第六代(6th generation，6G)移动通信系统。本申请提供的技术方案还可以应用于设备到设备(device to device，D2D)通信，车到万物(vehicle-to-everything，V2X)通信，机器到机器(machine to machine，M2M)通信，机器类型通信(machine type communication，MTC)，以及物联网(internet of things，IoT)通信系统或者其他通信系统。
图1示出了一种适用于本申请实施例的通信架构示意图。如图1所示，本申请的通信系统包括至少两个终端设备(如图1中的第一终端设备和第二终端设备)，该两个终端设备可以通过侧行链路(sidelink，SL)载波进行通信。其中，侧行链路表征了终端设备和终端设备间的一种连接关系，是一个逻辑概念，而非一个物理实体。侧行链路仅是为区分做的命名，其具体命名不对本申请的保护范围造成限定。
可以理解的是，第二终端设备设备可以是第一终端设备进行单播通信时的某个接收端设备，或者是第一终端设备进行组播通信时的某个接收端设备，或者是第一终端设备进行广播通信时的某个接收端设备，本申请对此不作限定。
可选地，终端设备和终端设备之间SL通信时的配置信息，如终端设备和终端设备之间SL通信时的时频资源可以是网络设备配置或调度的，也可以是终端设备自主选择的，本申请不予限制。
作为示例，第一终端设备和第二终端设备之间的SL通信，可以用于车联网或智能交通系统(intelligent transportation system，ITS)，如V2X通信。其中，V2X通信可以包括：车与车(vehicle-to-vehicle，V2V)通信、车与路侧基础设施(vehicle-to-infrastructure，V2I)通信、车与行人(vehicle-to-pedestrian，V2P)通信、车与网络(vehicle-to-network，V2N)通信。V2V指的是车辆间的通信。V2P指的是车辆与人(包括行人、骑自行车的人、司机、或乘客等)的通信。V2I指的是车辆与基础设施的通信，基础设施例如路侧单元(road side unit，RSU)或者网络设备。其中，RSU包括两种类型：终端类型的RSU，由于布在路边，该终端类型的RSU处于非移动状态，不需要考虑移动性； 基站类型的RSU，可以给与之通信的车辆提供定时同步及资源调度。V2N指的是车辆与网络设备的通信。可以理解，上述为示例性说明，本申请实施例不予限性。例如，V2X还可包括目前3GPP的Rel-16及后续版本的基于NR系统的V2X通信等。
可以理解的是，第一终端设备和第二终端设备可以均处于网络设备的覆盖范围内，也可以均处于网络设备的覆盖范围外(out-of-coverage)，还可以一个处于网络设备的覆盖范围内，一个处于网络设备的覆盖范围外，本申请不作限定。还可以理解的是，第一终端设备还可能与第二终端设备以外的其他终端设备连接(即第一终端设备与多个终端设备连接)，第二终端设备也可能与第一终端设备以外的其他终端设备连接(即第二终端设备与多个终端设备连接)，本申请不作限定。下面结合图2介绍几种图1所示的通信系统所适用的几种可能的网络架构。
如图2的(a)所示，第一终端设备和第二终端设备均处于网络设备的覆盖范围内，因此第一终端设备和第二终端设备均可以与网络设备进行通信。网络设备和终端设备之间可通过Uu接口进行通信，网络设备和终端设备之间通信的链路(link)可记为Uu链路。其中，Uu链路表征了终端设备和网络设备间的一种连接关系，是一个逻辑概念，而非一个物理实体。主链路仅是为区分做的命名，其具体命名不对本申请的保护范围造成限定。
可以理解的是，网络设备与终端设备之间可以直接通信，也可以通过其他中继设备进行间接通信，本申请对此不做限定。
如图2的(b)所示，第一终端设备处于网络设备的覆盖范围内，第二终端设备处于网络设备的覆盖范围外，第一终端设备与网络设备，以及第二终端设备连接。第一终端设备可以与网络设备直接进行通信，第二终端设备可以通过第一终端设备与网络设备进行通信。或者在另一种场景下(图中未示出)，第二终端设备处于网络设备的覆盖范围内，第一终端设备处于网络设备的覆盖范围外，第二终端设备可以与网络设备直接进行通信，第一终端设备可以通过第二终端设备与网络设备进行通信。
如图2的(c)所示，第一终端设备处于网络设备的覆盖范围内，第二终端设备和第三终端设备处于网络设备的覆盖范围外，第一终端设备与网络设备，以及第二终端设备和第三终端设备连接。第一终端设备可以与网络设备直接进行通信，第二终端设备和第三终端设备可以通过第一终端设备与网络设备进行通信。
如图2的(d)所示，第一终端设备、第二终端设备以及第三终端设备均处于网络设备的覆盖范围外，并且第一终端设备与第二终端设备连接，第二终端设备与第一终端设备以及第三终端设备连接。
如图2的(e)所示，第一终端设备、第二终端设备以及第三终端设备均处于网络设备的覆盖范围外，并且第一终端设备分别与第二终端设备和第三终端设备连接(这里不限定第二终端设备与第四终端设备之间是否有连接)。
如图2的(f)所示，第一终端设备至第四终端设备仅处于网络设备的覆盖范围外，且第一终端设备与第二终端设备连接，第二终端设备与第三终端设备和第四终端设备连接。
可以理解的是，图2所示的各种网络架构，仅仅是为了便于理解而示例的简化的示意图，本申请适用的通信系统中还可以包括其他网络设备以及其他终端设备，图2中未予以画出。本申请实施例可以适用于发送端设备和接收端设备通信的任何通信场景。
本申请实施例所涉及的终端设备可以是一种向用户提供语音/数据的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、可穿戴设备，5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请实施例对此并不限定。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称 为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
本申请实施例中，用于实现终端设备的功能的装置，即终端装置，可以是终端设备，也可以是能够支持终端设备实现该功能的装置，例如芯片系统或芯片，该装置可以被安装在终端设备中。本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备也可以称为接入网设备或无线接入网设备，如网络设备可以是基站。本申请实施例中的网络设备可以是指将终端设备接入到无线网络的无线接入网(radio access network，RAN)节点(或设备)。基站可以广义的覆盖如下中的各种名称，或与如下名称进行替换，比如：节点B(NodeB)、演进型基站(evolved NodeB，eNB)、下一代基站(next generation NodeB，gNB)、中继站、接入点、传输点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、主站、辅站、多制式无线(motor slide retainer，MSR)节点、家庭基站、网络控制器、接入节点、无线节点、接入点(access point，AP)、传输节点、收发节点、基带单元(baseband unit，BBU)、射频拉远单元(remote radio unit，RRU)、有源天线单元(active antenna unit，AAU)、射频头(remote radio head，RRH)、中心单元(central unit，CU)、分布式单元(distributed unit，DU)、定位节点等。基站可以是宏基站、微基站、中继节点、施主节点或类似物，或其组合。基站还可以指用于设置于前述设备或装置内的通信模块、调制解调器或芯片。基站还可以是移动交换中心以及D2D、V2X、M2M通信中承担基站功能的设备、6G网络中的网络侧设备、未来的通信系统中承担基站功能的设备等。基站可以支持相同或不同接入技术的网络。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。
基站可以是固定的，也可以是移动的。例如，直升机或无人机可以被配置成充当移动基站，一个或多个小区可以根据该移动基站的位置移动。在其他示例中，直升机或无人机可以被配置成用作与另一基站通信的设备。
在一些部署中，本申请实施例所提及的网络设备可以为包括CU、或DU、或包括CU和DU的设备、或者控制面CU节点(中央单元控制面(central unit-control plane，CU-CP))和用户面CU节点(中央单元用户面(central unit-user plane，CU-UP))以及DU节点的设备。
本申请实施例中，用于实现网络设备的功能的装置，可以是网络设备，也可以是能够支持网络设备实现该功能的装置，例如芯片系统或芯片，该装置可以被安装在网络设备中。本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。
网络设备和终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和卫星上。本申请实施例中对网络设备和终端设备所处的场景不做限定。
为了便于理解本申请实施例的技术方案，在介绍本申请实施例的方案之前，首先介绍本申请实施例可能涉及到的一些术语或概念。
一、授权频谱和非授权频谱
为了充分、合理、有效地利用无线电频谱资源，保证无线电业务的正常运行，防止各种无线电业务、无线电台站和系统之间的相互干扰对频段进行了划分。目前，无线通信系统使用的频谱主要分为两类，授权频谱(licensed spectrum)和非授权频谱(unlicensed spectrum)。
授权频谱是一种需要向网络设备(电信运营商)申请使用的频谱资源，其具有干扰小、安全的特点。
非授权频谱是一种无需申请就能免费使用的频谱资源，主要作为运营商增强其服务的补充工具。在非授权频谱中，通信设备可按照竞争的方式使用频谱资源。在非授权频谱上的SL通信可以称为SL-U，在非授权频谱上的NR蜂窝通信可以称为NR-U。SL UE、NR UE与Wi-Fi UE、蓝牙UE等都可以在非授权频谱上传输。
一种可能的方式，通信设备通过先听后说(listen-before-talk，LBT)的方式竞争信道，进而使用非授权频谱资源。
二、LBT
LBT是一种基于随机退避(random back-off)的信道接入机制。由于非授权频段上信道的可用性并不能时刻得到保证，因此LBT要求UE在接入信道并开始发送数据之前，先感知(sense)信道是否空闲(idle)。如果信道已经保持空闲一定时间则可以占用信道，如果信道非空闲则需要等待信道恢复为空闲后才可以占用信道。一种可能的实现方式，采用基于能量的检测和信号类型的检测，来确定信道是否空闲。以能量的检测为例，当检测的能量超过检测门限时，判决为信道忙，也即不允许接入信道。当检测的能量低于检测门限，且持续超过一段时间，判决为信道空闲，也即允许接入信道。
信道接入过程包括类型1(type1)LBT和type2LBT。其中，type1LBT是基于回退的LBT，回退的时间与信道访问优先级类(channel access priority class，CAPC)有关，需要信道空闲较长时间才能接入。type2LBT仅需要信道空闲较短的时间(如16us或者25us)UE就可以接入信道，主要在信道占用时间(channel occupancy time，COT)共享时使用。
三、COT
信道占用(channel occupancy，CO)是指UE在执行信道接入过程后在一个或者多个信道上的传输。如果某个UE通过LBT获得信道使用权，UE可在一段时间内占用该信道，该段时间可以被称作COT。COT可以是一个时间概念，即SL传输的时间；也可以是一个资源的概念，即SL传输所占的时频资源。
UE的传输不能超过最大信道占用时间(maximum channel occupancy time，MCOT)的限制，最大信道占用时间可以记为Tmot,p。对于不同的CAPC，Tmot,p的值不同，如表1或表2所示。其中，表1和表2中的CWp为竞争窗(contention window)，CWmin,p为竞争窗最小值，CWmin,p为竞争窗最大值。
表1
表2
四、COT共享以及共享资源
UE之间可共享非授权频谱资源。举例来说，如果某个UE通过LBT获得信道使用权，UE可以与其他的设备共同占用该信道，这一过程为COT共享。UE可以将COT内的信道使用权共享给其他设备，UE在COT内共享给其他UE使用的资源可以称为共享资源，共享资源包括时域资源和频域资源，其他设备可通过共享资源发送数据或控制信息。
五、时频资源
时域资源和频域资源可以统称为时频资源，时频资源可以用来传输数据或控制信息。
在时域上，时频资源可以包括一个或多个时间单元(或者，也可以称为时域单位)。一个时间单位可以是包括14个符号的时隙(slot)，或者是包括7个符号的迷你时隙(mini-slot)，或者是部分时隙(partial slot)，或者是一个符号，或者是一个子帧(subframe)，或者一个无线帧(frame)等等任何用于传输数据或控制信息的最小时间单元。
在频域上，时频资源可以包括一个或多个频域单元。一个频域单元可以是一个资源单元(resource element，RE)，或者一个资源块(resource block，RB)，或者一个子信道(subchannel)，或者交织interlace，或者一个资源池(resource pool)，或者一个带宽(bandwidth)，或者一个带宽部分(bandwidth part，BWP)，资源块集合(RB set)，或者一个载波(carrier)，或者一个信道(channel)，或者一个交错(interlace)RB等。可选的，一个RB set可以是一个预定义大小的带宽大小上的可用资源数。例如，一个RB set对应20MHz带宽上的可用资源的数量。可选的，子信道可以是包括预设的连续RB数的频域资源单元，也可是包括预设的非连续RB数的频域资源单元，本申请对此不做限制。
六、资源池
NR SL通信基于资源池(resource pool)进行，所谓的资源池指的是一块专用于SL通信的时频资源。资源池包含的频域资源是连续的。资源池包含的时域资源可以是连续的，也可以是不连续的。不同的资源池由SL-ResourcePoolID区分。UE在收资源池上接收，在发资源池上发送。如果资源池具有相同的资源池索引，则可以认为资源池的时频资源是完全重合的。
在SL-U中，由于频带是由多种形式的UE共享的，如SL UE与Wi-Fi UE、蓝牙UE在相同的频带上传输。SL资源池还可以理解为可以用于SL传输的资源集合。在本实施例中，资源池还可以称作信道(channel)、工作信道(Operating channel)、名义信道(Nominal Channel Bandwidth)带宽(bandwith)。即资源池、信道、带宽的均用于表示可以用于SL传输的资源集合。
可选地，一个资源池可以包括一个或多个RB set。
七、SL资源分配模式
根据资源分配主体的不同，SL传输中的资源分配(resource allocation，RA)可以分为两种模式(mode)：mode 1(模式1)和mode 2(模式2)。在mode 1中，SL传输所使用的时频资源由网络设备集中调度；在mode 2中，SL传输所使用的时频资源由终端设备确定。下面对mode 2中的资源分配方式作简单介绍。
如图3所示，在mode 2中，定义了一个时间点和两个时间窗。该时间点是指：终端设备的高层(higher layer)为发送PSCCH和/或PSSCH而触发进行资源选择的时隙。如图3所示，该时隙可以称为时隙n。两个时间窗中的一个时间窗为感知窗(sensing window)，指终端设备感知自身周围的时频资源占用情况时所使用的窗口。示例性的，感知窗可以对应图2中的时隙范围[n-T0,n-Tproc,0]。两个时间窗中的另一个窗口为选择窗(selection window)，指终端设备基于感知窗内的感知结果确定候选资源(candidate single-slot resource)(简称资源)时所使用的窗口，并且在时域上选择窗位于感知窗之后。示例性的，选择窗可以对应于图2中的时隙范围[n+T1,n+T2]。
基于上述说明，资源分配mode2的基本流程作简要说明。
假设资源池的时隙集合定义为
步骤1，终端确定选择窗[n+T1,n+T2]。
其中，n为被触发进行资源选择的时刻。
其中，T1的取值取决于终端的实现，但是T1需要满足：其中，取值与子载波间隔有关。例如，的取值可以根据表1确定，表3示出了不同子载波间隔下的的取值。
表3

其中，T2的取值与T2的最小取值和剩余的包时延预算(packet delay budget，PDB)有关。例如，若T2min的取值比PDB小，则T2的取值取决于终端的实现，但是T2需要满足：T2min≤T2≤PDB；若T2min的取值比PDB大，则T2的取值为PDB，其中T2min为T2的最小取值，PDB以时隙为单位。
在选择窗[n+T1,n+T2]下，资源池内单个候选资源的总数记为Mtotal。
步骤2，终端确定感知窗
其中，n为被触发进行资源选择的时刻。
其中，T0是与感知窗对应的时隙的个数。
其中，的取值与子载波间隔有关。例如，的取值可以根据表4确定，表4示出了不同子载波间隔下的的取值。
表4
步骤3，终端获取感知窗内的感知结果。
其中，感知结果可以包括以下至少一项：PSCCH解码结果和RSRP测量结果。
步骤4，终端根据感知结果，确定用于传输PSSCH的资源。
一种可能的实现方式，假设用于传输PSSCH的资源的集合为SA，SA的初始值为在选择窗[n+T1,n+T2]下资源池1内候选资源的集合。终端从SA中排除同时满足以下条件的单个候选资源Rx,y。
条件1：接收到侧行链路控制信息(sidelink control information，SCI)，且该SCI包括资源预留周期字段、以及优先级字段。
例如，终端在时隙接收到SCI，且该SCI包括资源预留周期字段、以及优先级字段。其中，资源预留周期字段指示prsvp_RX，优先级字段指示prioRX。
条件2：SCI指示的预留资源对应的RSRP测量值高于RSRP门限值A。
其中，A为Th(prsvp_RX,prioRX)。
条件3：单个候选资源与SCI中指示的预留资源有重叠。
例如，终端在时隙接收到SCI，且该SCI包括资源预留周期字段，则终端预计在时隙可以接收到相同的SCI，终端确定与重叠的RB和时隙的集合。
其中，q＝1,2,...,Q，j＝0,1,...,Cresel-1，Cresel主整数。这里的P′rsvp_RX是将prsvp_RX转换成以逻辑时隙为单位后得到的。如果prsvp_RX<Tscal并且n'-m≤p'rsvp_RX，其中，如果时隙n属于集合否则时隙时时隙n后属于集合的第一个时隙；否则Q＝1。Tscal是将T2转换成以毫秒(msec)为单位后得到的。
然后，终端判断SA中的单个候选资源的个数是否大于X·Mtotal。若SA中的单个候选资源个数小于X·Mtotal，则终端将RSRP门限值Th(prsvp_RX,prioRX)增加3dB，并重新执行排除的过程。若SA中的单个候选资源个数达到X·Mtotal，则排除过程结束，当前SA为可以用于传输PSSCH的单个候选资源的集合。
步骤5，终端将确定出的SA上报给终端设备的高层，以便终端设备的高层根据上报的SA来确定用于传输PSSCH的资源。可选地，终端设备的高层为物理层以上的层，如MAC层、RRC层、PDCP层等，本申请对此不做限定。可选地，SA可以视作终端设备可用资源。
八、预留资源
本申请实施例中的预留资源指的是为传输数据或信息而预留的资源，包括时域资源和频域资源。预留资源可以是周期性分布的，相邻两个预留资源之间的时间间隔可以称为预留周期(Reservation period)，或资源预留周期(Resource Reservation period)。
示例性地，图4示出了一种预留资源的示意图。在图4中，R1为传输第一数据的资源(图中以实线示意)，包括第一数据的时域资源和频域资源。在图4中，R2、R3和R4为第一数据对应的预留资源(图中以虚线示意)。可以理解的是，图4示出了第一数据对应的3个预留资源，但在实际传输中，第一数据可能仅对应有一个或两个预留资源，也可能对应有四个或四个以上预留资源，本申请对此不作限定。
在一种示例中，第一数据对应的预留资源是根据第一数据的频域资源、时域资源以及第一数据对应的SCI所指示的预留周期确定的资源。例如，第一数据对应的SCI在时隙被接收到，对应的预留资源所在的时隙为其中，q为正整数，P′rsvp_RX为第一数据的预留周期或第一数据所在的第一COT的预留周期。可选地，对于预留周期，Prsvp_RX为第一数据的SCI指示的预留周期、单位为毫秒(ms)，P′rsvp_RX是Prsvp_RX指示的预留周期转换成的逻辑时隙上的预留周期。可选地，第一数据对应的预留资源中的频域资源与第一数据的频域资源相同。第一数据对应的预留资源中的频域资源与第一数据的频域资源相同。
下面结合图4中的示例进行说明。
如果第一数据对应的SCI中的“resource reservation period”字段不为空或为正整数，则可以根据该“resource reservation period”字段指示的预留周期以及R1资源对应的时域资源和频域资源，确定上述预留资源R2、R3和R4。例如，R2所在时隙的起始位置与R1所在时隙的起始位置之间的时间间隔为预留周期，R2所在时隙的结束位置与R1所在时隙的结束位置也为预留周期，并且，R2的频域资源与R1的频域资源相同。类似地，R3所在时隙的起始位置与R2所在时隙的起始位置之间的时间间隔为预留周期，R3所在时隙的结束位置与R2所在时隙的结束位置也为预留周期，并且，R3的频域资源与R2的频域资源相同。R4所在时隙的起始位置与R3所在时隙的起始位置之间的时间间隔为预留周期，R4所在时隙的结束位置与R3所在时隙的结束位置也为预留周期，并且，R4的频域资源与R3的频域资源相同。
九、反馈信道
LTE V2X中支持广播，即发送终端发送数据，对接收终端没有任何限制。在此基础上，NR V2X中引入单播和组播。单播即一对终端之间进行通信，组播即发送终端发送数据，有限数量的组内终端进行接收。
单播和组播中支持HARQ反馈。单播和组播支持ACK/NACK的反馈方式，即接收终端成功接收数据则反馈ACK，没有成功接收数据则反馈NACK。此外，组播还支持NACK only的反馈方式，即多个接收终端在同一个控制资源上只反馈NACK，即接收终端没有成功接收数据则反馈NACK，成功接收数据则不发送任何反馈信号。
单播和组播的HARQ信息使用反馈信道承载，该反馈信道具体可以是物理侧行反馈信道(physical sidelink feedback channel，PSFCH)。
作为一种可能的实施方式，PSFCH可用于传输反馈信息。举例来说，针对一次PSSCH传输，若发送端在控制信息中携带混合自动重传请求确认(hybrid automatic repeat request acknowledgment， HARQ-ACK)反馈使能信息，则接收端可根据此次PSSCH的译码结果反馈相应的肯定(acknowledgement，ACK)或否定(negative acknowledgement，NACK)信息。其中ACK或NACK信息通过PSFCH传输。可选地，ACK only或NACK only的信息，也可以通过PSFCH传输。
反馈信道的资源指的是用于传输反馈信道的资源。
十、参考信号接收功率(reference signal received power，RSRP)
PSSCH-RSRP在定义上是所有承载了PSSCH-DMRS的RE上的有用信号(即PSSCH-DMRS)功率(不计算CP部分的功率)在线性域的平均。PSCCH-RSRP在定义上是所有承载了PSCCH-DMRS的RE上的有用信号(即PSCCH-DMRS)功率(不计算CP部分的功率)在线性域的平均。PSFCH所在符号不测量RSRP。
十一、信道忙碌比信道忙比例(channel busy ratio，CBR)
CBR是指：在时隙n时，在定义的测量窗所在的时隙上的资源池中的子信道上测量得到的S-RSSI超过配置的门限值的比例或部分。可选的，测量窗的大小可以为[n-a,n-b]，a和b的为非负整数。例如，a＝100，b＝1。
可选地，CBR可以是针对不同的信道进行测量，得到相应信道的CBR。例如，对物理侧行共享信道(physical sidelink shared channel，PSSCH)进行测量，则得到PSSCH的CBR；对物理侧行控制信道(physical sidelink control channel，PSCCH)进行测量，则得到PSCCH的CBR；对物理侧行控制信道(physical sidelink feedback channel，PSFCH)进行测量，则得到PSFCH的CBR。
可选地，对于PSSCH，假设在一个资源池中每个时隙上有20个子信道，则时隙n之前的100个时隙(时隙[n-100,n-1])的测量窗上共有100*20＝2000个子信道。如果测量到时隙n之前的前100个时隙上有1200个子信道的接收信号强度指示(received signal strength indication，RSSI)超过网络设备配置的门限值，则在时隙n时刻测量的CBR为1200/(100*20)＝0.6。
可选地，对于PSCCH，则只测量PSCCH与PSSCH的资源池在频域不相邻的位置。测量时，PSCCH的带宽固定为2个PRB。
下面对RSSI作简单介绍：当针对侧行链路进行RSSI测量时，此时的RSSI可以称为侧行链路RSSI(sidelink RSSI，S-RSSI)。可选地，S-RSSI定义为每个符号上接收到的配置的子信道上所有接收功率的线性平均。例如，在一个时隙上共有10个可供测量的符号，假设每个符号上配置的子信道占用的带宽为20个物理资源块(physical resource block，PRB)，则分别计算这10个符号上每个符号在这20个PRB上的总功率，然后将这10个可供测量的符号上的测量结果做线性平均，得到S-RSSI。
又如，在一个时隙上共有12个可供测量的可符号，假设每个符号上配置了10个子信道，则分别计算这12个可供测量的可符号上每个符号在这10个子信道上的总功率，然后将这10个符号上的测量结果做线性平均，得到S-RSSI。
十二、信道占用比(channel occupancy ratio，CR)
CR是指：在时隙n中，用于传输的信道数量除以总的配置的子信道得到的值。可选的，用于传输的信道数量可以是在时隙n之前用于传输的子信道，和/或，在时隙n之后被调度用于传输的子信道数量之和。对应的，总配置的子信道的数量可以是在时隙n之前的测量窗中的，也可以是时隙n之后的测量窗中的子信道的数量。例如，时隙n之前的测量窗可以是[n-a,n-1]，时隙n之后的测量窗可以是[n,n+b]，总的配置的子信道数量即为[n-a,n+b]上配置的子信道总数量。
示例性地，对于时隙n，假设在时隙[n-a,n-1]上用于传输的子信道总数量S1，在时隙[n,n+b]上被调度用于传输的子信道总数量S2，在时隙[n-a,n+b]上配置的子信道总数量S，则在时隙n时刻测量的CR为(S1+S2)/S。
需要说明的是，在[n+1,n+b]上的被调度的用于传输的子信道总数量，实际为未来的传输占用的子信道，其可以根据在时隙n上检测到的调度分配(scheduling assignment，SA)的指示信息指示的重传来统计。
例如：对于时隙n，在时隙[n-500,n-1]上用于传输的子信道总数量S1＝2000，在时隙[n,n+499]上被调度用于传输的子信道总数量S2＝1000，在时隙[n-500,n+499]上配置的子信道总数量S＝1000*20，则在时隙n时刻测量的CR为(2000+1000)/20000＝0.15。
十三、优先级
UE发送的不同业务的数据、同一时间单元或信道上传输的数据，可能对应的优先级不同。优先级越高，则表示此待传输的数据越重要、或者越紧急、或者可靠性要求越高。反之，优先级越低，则表示此待传输的数据越不重要、或者越不紧急、或者可靠性要求越低。。
可以理解的是，优先级等级与优先级数值可具有某种对应关系，例如优先级等级越高对应的优先级数值越低，或者优先级等级越低对应的优先级数值越低。以优先级等级越高对应的优先级数值越低为例，优先级数值取值范围可以为1-8的整数或者0-7的整数。若以优先级数值取值范围为1-8，则优先级的值为1时代表最高等级的优先级。
上面对本申请中涉及到的术语做了简单说明，下文实施例中不再赘述。此外，上文关于术语的说明，仅是为便于理解做的说明，其对本申请实施例的保护范围不造成限定。
可以理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
还可以理解，指示信息所指示的信息，称为待指示信息。在具体实现过程中，对待指示信息进行指示的方式有很多种，例如但不限于，可以直接指示待指示信息，如待指示信息本身或者该待指示信息的索引等。也可以通过指示其他信息来间接指示待指示信息，其中该其他信息与待指示信息之间存在关联关系。还可以仅仅指示待指示信息的一部分，而待指示信息的其他部分则是已知的或者提前约定的。例如，还可以借助预先约定(例如协议规定)的各个信息的排列顺序来实现对特定信息的指示，从而在一定程度上降低指示开销。
在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
可以理解的是，在本申请中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的范围。上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”以及其他各种术语标号等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
下文将结合附图详细说明本申请实施例提供的信息传输的方法。本申请提供的实施例可以适用于发送端设备和接收端设备通信的任何通信场景，如可以应用于上述图1和图1所示的通信系统中。
图5示出了本申请实施例提供的资源确定的方法500的示例性流程图。该方法500可以由第一终端设备执行，或者由第一终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以方法500由第一终端设备执行为例进行说明。
在方法500中，第一终端设备在候选资源集合排除第一反馈信道关联的第一数据对应的预留资源的情况下，也排除该第一反馈信道对应的预留资源，从而保障第一数据的反馈性能。下面结合图5中的各个步骤对方法500作示例性说明。
S501，第一终端设备在感知窗中接收到第一信息。
示例性地，该第一信息指示第二终端设备的第一COT，该第一COT包括第一反馈信道占用的资源。其中，这里的第二终端设备可以是第一终端设备的接收端设备，也可以是第一终端设备的发送端设备，还可能是与第一终端设备不具备收发关系的其他设备，本申请对此不作限定。可以理解的是，第二终端设备是第一终端设备的接收端设备，指的是第一终端设备的目的标识为第二终端设备的源标识；第二终端设备是第一终端设备的发送端设备，指的是第二终端设备的目的标识为第一终端设备的源标识。
在一种示例中，该第一信息为侧行链路控制信息SCI。可选地，第一信息可以包括以下信息中的 一种或多种：第一COT的结构信息，第一COT上传输数据的预留信息，第一COT上传输数据的调度信息。其中，第一COT的结构信息包括第一COT占用的时频资源信息，信道接入优先级类型信息、第二终端设备在第一COT上发送数据的时频资源信息、第二终端设备在第一COT共享给其他终端设备的时频资源信息、第一COT的预留周期信息等中的一种或多种。第一COT上传输数据的预留信息包括：传输数据的优先级信息、传输数据的预留周期信息、传输数据占用的时频资源信息等信息中的一种或多种。第一COT上传输数据的调度信息，包括：第一终端设备的标识或源标识、第二终端设备的标识或目的标识、播类型、HARQ进程号等信息中的一种或多种。
S502，第一终端设备从选择窗中的候选资源集合排除第一反馈信道关联的第一数据对应的预留资源，并且在该候选资源集合排除第一反馈信道对应的预留资源。
示例性地，第一终端设备在感知窗接收到第一信息之后，从选择窗中的候选资源集合排除第一数据对应的预留资源，以及第一反馈信道对应的预留资源。
其中，第一反馈信道与第一数据相关联。即第一反馈信道占用的资源中所传输的信息为第一数据的反馈信息，或者说，第一数据的反馈信息在第一反馈信道的资源中传输。
第一数据位于第一COT和/或第二COT上，该第二COT位于第一COT之前。也就是说，第一数据可以是在第一COT上传输的数据，也可以是在第二COT上传输的数据，还可以部分在第一COT上传输，部分在第二COT上传输，本申请对此不作限定。
可以理解的是，第二COT可以是第一终端设备在感知窗中检测到的COT(即第一终端设备在感知窗中接收到了用于指示第二COT的信息)，也可以不是第一终端设备在感知窗中检测到的COT，本申请对此不作限定。
可选地，选择窗中的候选资源集合指的是选择窗中用于第一终端设备发送数据和/或控制信息的时频资源的集合。
第一终端设备在候选资源集合排除第一数据对应的预留资源，指的是第一终端设备从候选资源集合中排除第一数据对应的预留资源与候选资源集合重叠的部分。可选地，排除第一数据对应的预留资源也可以理解为，第一终端设备不将该第一数据对应的预留资源作为用于传输数据和/或控制信息的候选资源，或者，第一终端设备不在候选资源集合保留该第一数据对应的预留资源。
在一种可能的实现方式中，第一终端设备可以在确定从选择窗中的候选资源集合排除第一数据对应的预留资源的情况下，排除第一反馈信道对应的预留资源。换句话说，第一终端设备在确定不从选择窗中的候选资源集合排除第一数据对应的预留资源的情况下，不从候选资源集合排除第一反馈信道对应的预留资源。本申请不限定第一终端设备如何确定从候选资源集合排除第一数据对应的预留资源的。
可以理解的是，第一终端设备不在候选资源集合排除预留资源，指的是第一终端设备将该预留资源作为用于传输数据或信息的候选资源，或者说，第一终端设备在候选资源集合保留该预留资源。
在另一种可能的实现方式中，在满足第一条件的情况下，第一终端设备从选择窗中的候选资源集合排除第一数据对应的预留资源，以及排除第一反馈信道对应的预留资源，其中，该第一条件包括以下两项：
第一终端设备获取到了与第二数据关联的预留周期，或者，第二数据为周期性数据，或者，指示第二数据的信息中包括预留周期；
第二数据对应的预留资源与选择窗中的候选资源集合有交集，或者，第二数据对应的预留资源与选择窗中的候选资源集合有部分或全部重叠。
其中，上述第二数据为第一数据，或者是与第一数据位于同一COT上的其他数据，本申请对此不作限定。
可选地，该第一条件还可以包括以下一项：第二数据的RSRP大于或等于预设的门限值。可以理解的是，本申请实施例所涉及的门限值都可以是预配置或预定义的值，或者是网络设备配置的值，本申请不作限定，其他类似地方不再重复说明。
换句话说，在不满足第一条件中的任意一项的情况下，第一终端设备不从选择窗中的候选资源集合排除第一数据对应的预留资源，以及第一反馈信道对应的预留资源。
下面对第一终端设备在候选资源集合中排除第一反馈信道对应的预留资源的一种可能的实现方式 作示例性说明。示例性地，第一终端设备从候选资源集合中排除第一时间单元上的部分或全部频域资源，其中，第一反馈信道对应的预留资源位于第一时间单元上，这里的部分或全部频域资源包括第一反馈信道的预留资源所在的资源块集合。第一时间单元的部分频域资源，例如指的是第一COT所占用的频域资源。
也就是说，第一终端设备在从候选资源集合中排除第一反馈信道对应的预留资源的情况下，第一终端设备还从该候选资源集合中排除第一反馈信道对应的预留资源所在的第一时间单元上的其他部分或全部资源。可选地，第一反馈信道对应的预留资源包括用于反馈第一COT中的共享资源内的数据对应的预留资源。因此，通过排除第一反馈信道对应的预留资源，可以防止中断第一COT的预留资源上的反馈资源。
可选地，第一终端设备进一步还可以从候选资源集合中，排除第一COT上位于第一反馈信道所在的第一时间单元之前的预留资源。
为了方便说明，将第一COT的预留资源分为预留资源#1、预留资源#2和预留资源#3，其中预留资源#1为第一反馈信道所在的第一时间单元的预留资源，预留资源#2为第一COT的预留资源上位于第一反馈信道所在的第一时间单元之前的预留资源，预留资源#3为第一COT的预留资源上位于第一反馈信道所在的第一时间单元之后的预留资源。如果第一终端设备要从资源候选集合排除预留资源#1，则第一终端设备可以将预留资源#2也从候选资源集合中排除，因此在这种情况下，第二终端设备便可以使用预留资源#1和预留资源#2进行传输，避免第二终端设备在第一COT上的传输中断，从而提升第二终端设备的传输性能。
可以理解的是，当第一终端设备要从候选资源集合排除第一反馈信道的预留资源的情况下，由于第一反馈信道的预留资源所在的第一时间单元上的传输机会，需要搭载于整个第一COT才能内成功传输，因此，如果将第一COT上位于第一时间单元之前的预留资源排除，则至少可以保障第二终端设备在第一时间单元上成功发送，从而提高传输性能。
可选地，第一终端设备还可以从候选资源集合排除预留资源#3。也就是说，第一终端设备可以在要排除第一反馈信道对应的预留资源的情况下，排除第一COT的预留资源。
可选地，第一终端设备可以在满足第二条件的情况下，从候选资源集合中，排除第一COT上位于第一反馈信道所在的第一时间单元之前的预留资源。其中，这里的第二条件包括以下一项或多项：第一反馈信道上承载的传输优先级大于或等于第一门限值，或，第一终端设备为第一反馈信道对应的接收设备。
第一终端设备为第一反馈信道对应的接收设备，指的是第一终端设备为发送数据的设备，并且第一终端设备设备期待在第一反馈信道的资源上接收针对第一终端设备发送的数据的反馈信息，或者说，第一反馈信道用于传输第一终端设备发送的数据的反馈信息。
也就是说，在上述方案中，如果第一反馈信道上承载的传输优先级大于或等于第一门限值，则第一终端设备在候选资源集合，排除第一COT上位于第一时间单元之前的预留资源，这样可以进一步保护第二终端设备在第一时间单元上传输的成功率。
可选地，终端设备还获取到了第二信息，其中，该第二信息指示第一终端设备基于COT确定候选资源。该第二信息来自第二终端设备或网络设备，或者该第二信息为预定义或预配置的信息，本申请对此不作限定。第一终端设备可以根据该第二信息，执行上述S502。
为了便于理解上述方法500提供的方案，下面结合图6-图8对上述方案作示例性说明。
在图6所示的示例中，第一COT上的第一反馈信道与第一COT上的第一数据相关联，第一终端设备在确定排除第一数据对应的预留资源的情况下，在选择窗中的候选资源集合排除第一时间单元上的部分或全部频域资源，第一时间单元为第一反馈信道对应的预留资源所在的时间单元，这里的部分或全部资源包括第一反馈信道的预留资源所在的资源块集合。
可选地，第一终端设备还可以进一步还从候选资源集合中，排除第一COT上位于第一反馈信道所在的时间单元之前的预留资源。如图7所示。可以理解的是，在图7中，第一COT上位于第一反馈信道所在的时间单元之前的预留资源，包括第一数据对应的预留资源，和/或第一数据对应的预留资源与第一反馈信道的预留资源所在的时间单元之间的资源(即图中菱形填充的部分)。可以理解的是，排除“第一COT上位于第一反馈信道所在时间单元之前的预留资源”，包括排除图中菱形填充的资源的 部分或全部。
在图8所示的示例中，第一COT上的反馈信道与第二COT上的第一数据相关联，第二COT位于第一COT之前，第一终端设备在确定排除第一数据对应的预留资源的情况下，在选择窗中的候选资源集合排除第一时间单元上的资源，第一时间单元为第一反馈信道对应的预留资源所在的时间单元。
基于上述方案，第一终端设备检测到第二终端设备的第一COT之后，在候选资源集合排除第一反馈信道关联的第一数据的预留资源的情况下，也排除该第一反馈信道的预留资源，从而可以提高第一数据的传输性能，例如，提高第一数据的接收性能，以及译码的反馈性能。
可以理解的是，在上述方法500中，第一反馈信道的资源是位于第二终端设备的第一COT上的，也就是说，上述方法500描述了第一终端设备确定是否在候选资源集合排除第一COT上的第一反馈信道的预留资源的方案。但本申请并不限于此。也就是说，本申请并不限定第一反馈信道的资源位于第一终端设备检测到的某个COT上。例如，第一反馈信道的资源也可以是通过系统，以系统级的方式配置的。该第一反馈信道的资源可以是配置在资源池上的，或者是网络设备通过系统消息配置给第一终端设备的，本申请对此不作限定。
作为一种可能的示例，资源池上以信令配置或预配置了第一反馈信道的资源，以及第一反馈信道的预留资源。为了方便，这里将第一反馈信道的资源以及第一反馈信道的预留资源统称为第一反馈资源。
在反馈资源与第一终端设备的候选资源集合有交集的情况下，第一终端设备可以在满足以下条件中的任意一项的情况下，在候选资源集合排除反馈资源：
(1)该第一反馈资源为第一终端设备使用的反馈资源；
(2)该第一反馈资源为资源池配置的公共反馈资源。
可以理解的是，第一反馈资源为第一终端设备使用的反馈资源指的是第一反馈资源为第一终端设备发送和/或接收所使用的反馈资源。第一反馈资源为第一终端设备发送所使用的反馈资源，指的是第一反馈资源用于传输第一终端设备发送的数据的反馈信息；第一反馈资源为第一终端设备接收所使用的反馈资源，指的是第一反馈资源用于传输第一终端设备接收的数据的反馈信息。
还可以理解的是，在满足上述条件(1)的情况下，第一终端设备可以仅排除第一反馈资源中，第一终端设备要使用的反馈资源。在满足条件(2)的情况下，第一终端设备需要排除第一反馈资源中的全部资源，可选地，第一终端设备进一步排除该资源池上配置的所有公共反馈资源。
可选地，第一终端设备排除第一反馈资源，可以指的是第一终端设备排除第一反馈资源所在的时间单元。
基于上述方案，第一终端设备可以根据配置的反馈资源的信息，以及第一终端设备对于反馈资源的使用情况，在候选资源集合排除资源选择窗中的反馈资源。因此，该方案通过让第一终端设备在某些情况下，不将反馈资源作为自身传输数据的候选资源，有利于从第一终端设备或系统的角度，提升反馈资源的鲁棒性，从而提升反馈的性能。
图9示出了本申请实施例提供的资源确定的方法900的示例性流程图。该方法900可以由第一终端设备执行，或者由第一终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以方法900由第一终端设备执行为例进行说明。
在方法900中，第一终端设备在候选资源集合排除的资源的数量，大于第二终端设备的第一COT的预留资源的数量。下面结合图9中的各个步骤对方法900做示例性说明。
S901，第一终端设备在感知窗中接收到第一信息。
示例性地，该第一信息指示第二终端设备的第一COT，该第一COT的预留资源为第一资源，该第一资源的数量为N1。
可以理解的是，该第一COT的预留资源可以是以下中的任意一种：
第一COT上用于第二终端设备传输数据所预留的资源；或者，
第一COT上的用于第二终端设备传输数据所预留的资源，以及第一COT上共享给其他设备传输数据所预留的资源；或者，
第一COT上的用于第二终端设备传输数据所预留的资源，第一COT上共享给其他设备传输数据所预留的资源，以及第一COT用于传输反馈信息所预留的资源。
S902，第一终端设备从选择窗中的候选资源集合中排除第二资源。
示例性地，该第二资源的数量为N2，该第二资源包括第一资源，且N2大于N1。也就是说，第一终端设备在候选资源集合排除的资源的数量，大于第一COT的预留资源的数量。
可以理解的是，第一终端设备可以是在确定从候选资源集合要排除第一资源的情况下，从候选资源集合排除第二资源。本申请对第一终端设备确定从候选资源集合排除第一资源的方式不作限定。
可选地，第一终端设备在确定第一COT或第一COT所在的资源池上传输的数据使能了PSFCH反馈的情况下，从候选资源集合排除该第二资源。可以理解的是，如果第一终端设备在确定第一COT所在的资源池上关闭了PSFCH反馈，则此时N2等于N1。例如，第一COT对应的反馈周期可以是0，1，2，3，4等整数。当反馈周期为0时，表示第一COT未使能反馈，此时N2的值等于N1的值。
可选地，在S902之前，第一终端设备根据以下信息中的一项或多项确定N2：来自网络设备或第二终端设备的配置信息、第一COT对应的反馈周期、N1的值、第一COT上共享时隙的数量。下面进行示例性说明。
例如，网络设备或第二终端设备向第一终端设备发送配置信息，该配置信息用于指示该N2的值，即该配置信息指示第一终端设备在候选资源集合排除的资源的数量。
又例如，N2的值与第一COT对应的周期对应，即第一COT对应的反馈周期越大，N2值越大，反之则N2越小。
又例如，N2的值与N1的值对应，N1的值越大，则N2的值也越大，且N2与N1的差值也越大。
又例如，N2的值与第一COT中的共享时隙的数量相对应，在第一COT上共享时隙越大，N2的值也越大，反之N2越小。
可以理解的是，本申请实施例不限定第一终端设备和第二终端设备之间是否具有收发关系，即第一终端设备可以是第二终端设备的发送端设备和/或接收端设备，也可以既不是第二终端设备的发送端设备，也不是第二终端设备的接收端设备，本申请不作限定。
为了便于理解方法900所提供的方案，下面结合图10对上述方案作示例性说明。
从图10所示的示例中可以看出，第一资源为第一COT的预留资源，第二资源大于第一资源。其中，资源a和资源b是第二资源比第一资源多出来的资源，资源a和资源b中至少有一个资源的数量大于0。
基于上述方案，第一终端设备在候选资源集合中排除的资源的数量，大于第二终端设备的第一COT的预留资源的数量，从而可以为第二终端设备预留更多资源进行传输，提高第二终端设备的传输性能，减少因资源冲突导致第二终端设备的一些数据或信息发送失败的概率。进一步可选地，在第一COT或第一COT所在的资源池上传输的数据使能了PSFCH反馈的情况下，第一终端设备在候选资源集合排除N2个第二资源，可以为第二终端设备预留相较第一资源更多的资源，这部分多出来的资源可以用于第二终端设备发送第一COT，或第一COT之前的其他COT的反馈信息，并且，还可以为部分MAC CE或潜在的共享数据留出传输资源，从而可以提高第二终端设备的传输性能。
图11示出了本申请实施例提供的资源确定的方法1100的示例性流程图。在方法1100中，第二终端设备的预留资源的数量大于第二终端设备发送数据的资源的数量，以便第二终端设备后续有足够的资源进行传输，提高第二终端设备的传输性能。下面结合图11中的各个步骤对方法11作示例性说明。
S1101，第二终端设备确定第三资源。
示例性地，该第三资源为第二终端设备为发送第二数据预留的资源，该第三资源包括第四资源该第四资源为第二终端设备发送第二数据的资源，且该第三资源的数量为N2，该第四资源的数量为N1，该N2大于该N1。
也就是说，第二终端设备预留资源的数量，大于第二终端设备发送数据的资源的数量。
作为一种可能的实现方式，第二终端设备根据以下一项或多项确定第三资源的数量(即N2)：第二终端设备的信道接入优先级类型CAPC对应的最大COT长度mCOT、第二终端设备配置的PSFCH资源所占用的时间单元的数量、需共享的COT的资源数。下面结合示例进行说明。
例如，N2不能大于第二终端设备的CAPC对应的最大COT长度mCOT；
又例如，N2小于或等于N1+Ns，其中Ns为在第一COT上配置的PSFCH资源所占用的时间单元的数量；
又例如，N2小于或等于N1+Ns，其中Ns为第二终端设备在第一COT上共享给其他终端的资源所占用的时间单元的数量。
S1102，第二终端设备向第一终端设备发送第三信息，该第三信息用于指示该第三资源。对应地，第一终端设备接收来自第二终端设备的该第三信息。
可选地，在S1102之前，第二终端设备接收第四信息，该第四信息指示第二终端设备向第一终端设备发送该第三信息。在这种情况下，第二终端设备根据该第四信息向第一终端设备发送该第三信息。
本申请对第二信息指示第三资源的方式不作限定。在一种可能的实现方式中，该第三信息直接指示该第三资源。作为一种示例，该第三信息包括一个或多个字段用于指示该第三资源，或者该第三信息包括一个或多个字段用于指示该第三资源的索引。在另一种可能的实现方式中，该第三信息间接指示该第三资源，例如，该第三信息指示该第四资源以及N3的值，该N3为N2与N1之间的差值。
可选地，S1103，第二终端设备向第一终端设备发送第五信息。对应地，第一终端设备接收来自第二终端设备的该第五信息。
示例性地，该第五信息指示第一终端设备在选择窗中的候选资源集合排除的资源数量，该资源的数量为N2或者N1。示例性地，该第五信息可以是1bit的指示位，当取值为“1”时，表示该资源的数量为N2；当取值为“0”时，标识该资源的数量为“N1”。
可选地，在S1103之前，第二终端设备确定第一终端设备在候选资源集合排除的资源的数量。作为一种可能的实现方式，第二终端设备可以通过以下方式确定第一终端设备在候选资源集合排除的资源的数量：
例如，第二终端设备判断第一COT的固定比特率CBR是否大于或等于第四门限值，在第一COT的CBR大于或等于第四门限值的情况下，第二终端设备确定N3的值为N2，否则第二终端设备确定N3的值为N1；
又例如，第二终端设备判断第一COT是否使能HARQ，在第一COT使能了HARQ的情况下，第二终端设备确定N3的值为N2，否则第二终端设备确定N3的值为N1；
又例如，在第一COT上配置的PSFCH资源的数量或PSFCH资源周期为第一取值的情况下，第二终端设备确定N3的值为N2，在所述第一COT上配置的PSFCH资源数量或PSFCH资源周期为第二取值的情况下，第二终端设备确定N3的值为N1，这里的第一取值和第二取值可以是预定义或预配置的值，或者是网络设备配置的值，本申请不作限定。
又例如，在第一COT的预留资源包括共享资源或反馈资源的情况下，第二终端设备确定N3的值为N2，否则第二终端设备确定N3的值为N1。
基于上述方案，第二终端设备预留比实际传输的资源更多的资源，以便第二终端设备后续有足够的资源进行传输(如传输反馈信息)，从而提高第二终端设备的传输性能。
图12示出了本申请实施例提供的资源确定的方法1200的示例性流程图。该方法1200可以由第一终端设备执行，或者由第一终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以方法1200由第一终端设备执行为例进行说明。
在方法1200中，第一COT的预留资源的数量(记为N2)大于第一COT上传输数据的资源的数量(记为N1)，第一终端设备可以根据实际需求在候选资源集合中排除N2个资源或N1个资源。下面结合图12中的各个步骤对方法1200做示例性说明。
S1201，第一终端设备在感知窗接收到第一信息。
示例性地，该第一信息指示第二终端设备的第一COT，该第一COT包括第五资源，该第五资源用于发送数据，该第五资源的数量为N1。
该第一COT的预留资源为第六资源，该第六资源的数量为N2，该N2大于该N1。
S1202，第一终端设备从选择窗中的候选资源集合排除第七资源。
示例性地，第一终端设备排除第七资源，该第七资源包括第五资源或第六资源。
下面对第一终端设备确定第五资源的数量N3的具体的实现方式作示例性说明。
在一种可能的实现方式中，第一终端设备在接收到来自第二终端设备或网络设备的第六信息的情况下，该第六信息用于指示该第五资源的数量，第一终端设备根据该第六信息确定N3；
在另一种可能的实现方式中，第一终端设备判断第一COT的CBR是否大于或等于第四门限值，在第一COT的CBR大于或等于第四门限值的情况下，第一终端设备确定N3的值为N2，否则第一终端设备确定N3的值为N1；
在又一种可能的实现方式中，第一终端设备判断第一COT是否使能HARQ，在第一COT使能了HARQ的情况下，第一终端设备确定N3的值为N2，否则第一终端设备确定N3的值为N1；
在又一种可能的实现方式中，在第一COT上配置的PSFCH资源的数量或PSFCH资源周期为第一取值(如周期为1，或2)的情况下，第一终端设备确定N3的值为N2，在所述第一COT上配置的PSFCH资源数量或PSFCH资源周期为第二取值(如周期为4或8)的情况下，第一终端设备确定N3的值为N1。可以理解的是，这里的第一取值和第二取值可以是预定义或预配置的值，或者是网络设备配置的值，本申请不作限定。
在又一种可能的实现方式中，在第一COT的预留资源包括共享资源或反馈资源的情况下，第一终端设备确定N3的值为N2，否则第一终端设备确定N3的值为N1。
在又一种可能的实现方式中，如果第一终端设备检测到第二终端设备预留的资源中包括共享资源或反馈资源的话，第一终端设备确定N3的值为N2，否则第一终端设备确定N3的值为N1。
基于上述方案，在第一COT的预留资源的数量(记为N2)大于第一COT上传输数据的资源的数量(记为N1)的情况下，第一终端设备可以根据相应的方法或规则，确定是按照N1来排除资源，还是按照N2排排除资源，从而从接收侧的角度能够以与第二终端设备需求匹配的方式排除相应的资源，以便第二终端设备在下次传输时有足够的资源可以用于传输，从而提高第二终端设备的传输性能。
图13示出了本申请实施例提供的资源确定的方法1300的示例性流程图。该方法1300可以由第一终端设备执行，或者由第一终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以方法1300由第一终端设备执行为例进行说明。
在方法1300中，第一终端设备检测到第一COT之后，判断是否在第一COT上发送的第一数据预留的资源上进行频分复用。下面结合图13中的各个步骤对方法1300作示例性说明。
S1301，第一终端设备在感知窗接收到第一信息，该第一信息指示第二终端设备的第一COT。
S1302，第一终端设备确定是否从选择窗中的候选资源集合中排除第八资源。
示例性地，该第八资源与第九资源位于同一时间单元，且第八资源与第九资源的频域不同，该第九资源是第一COT上发送的第一数据的预留资源。也就是说，第八资源和第九资源是时域相同但频域不同的资源，因此第八资源还可以说是与第九资源频分的资源。因此，S1302还可以描述为：第一终端设备确定是否在第九资源上进行频分复用。
该第八资源可以与第九资源属于同一个RB set的资源，也可以是第九资源所在的时间单元上，所有RBset上的资源中除第九资源以外的资源。
可以理解的是，该第一数据为第二终端设备发送的数据，或者是其他终端设备在第一COT上的共享资源上发送的数据，本申请对此不作限定。
可选地，在S1302之前，第一终端设备确定该第九资源。作为一种示例，在满足第三条件的情况下，第一终端设备确定该第九资源，该第三条件包括以下一项或多项：
第一信息包括预留周期(或者说，第一终端设备获取到第一数据关联的预留周期，或者说，第一数据为周期性数据，或者说，第二终端设备在第一COT上的传输为周期性传输，或者说，第一COT存在周期性的预留资源)；
第一COT的RSRP大于或等于预设门限值；
第一终端设备接收到第二信息，该第二信息指示第一终端设备基于COT确定候选资源。
下面结合示例，对第一终端设备确定是否从候选资源集合排除第八资源的几种可能的实现方式作示例性说明。
作为一种可能的实现方式，在满足第五条件的情况下，第一终端设备确定在候选资源集合中排除第八资源；在不满足该第五条件的情况下，第一终端设备确定不从候选资源集合排除第八资源。
该第五条件包括：第一终端设备为第二终端设备的接收端设备，和/或第一终端设备获取到第七信息，该第七信息指示第一终端设备不在第九资源上进行频分复用，或者，该第七信息指示第一终端设 备在候选资源集合排除第八资源，其中，该第七信息来自第二终端设备或网络设备，或该第七信息为预定义的信息或预配置的信息。
可选地，该第五条件还可以包括：第九资源与候选资源集合有交集，和/或第一COT对应的RSRP大于或等于第五门限值。
基于上述方案，第一终端如果是第二终端设备的接收端设备的话，第一终端设备在候选资源集合排除第八资源，可以满足半双工的限制。
作为另一种可能的实现方式，在满足第六条件的情况下，第一终端设备确定不从候选资源集合排除第八资源；在不满足第六条件的情况下，第一终端设备确定从候选资源集合中排除第八资源。
该第六条件包括：第一终端设备不是第二终端设备的接收端设备，和/或第一终端设备获取到第八信息，该第八信息指示第一终端设备不在第九资源上进行频分复用，或者，该第八信息指示在候选资源集合保留第八资源，其中，该第八信息来自第二终端设备或网络设备，或该第八信息为预定义的信息或预配置的信息。可以理解的是，第八信息与第七信息可以是一个信息的不同取值，也可以是不同的信息，本申请不作限定。
下面以网络设备为例，介绍网络设备向第一终端设备发送第八信息的具体实现方式。
在一种可能的实现方式中，网络设备可以第一COT上发送的第一数据的优先级高于第二门限值，或者，第一COT上发送的第一数据的信道接入优先级高于第三门限值的情况下，向第一终端设备发送第八信息。
基于上述方案，只有优先级较高的传输才可以进行频分复用，以增加潜在的高优先级传输的资源数量。
因此，可选地，该第六条件还可以包括：第一COT上发送的第一数据的优先级高于第一门限值；或，第一COT上发送的第一数据的信道接入优先级高于第二门限值。
在另一种可能的实现方式，网络设备可以在第一COT上发送的第一数据的优先级低于第二门限值，或者第一COT上发送的第一数据的信道接入优先级低于第三门限值的情况下，向第一终端设备发送第八信息。
因此，可选地，该第六条件还可以包括：第一COT上发送的数据的优先级低于第一门限值；或，第一COT上发送的数据的信道接入优先级低于第二门限值。
基于上述方案，优先级较低的传输才可以进行频分复用，若是在频分复用的过程中，被频分复用的更高优先级的传输阻塞，造成的损失也相对较小。
基于上述方案，可以实现第一终端设备和第二终端设备之间的频分复用，从而提升了整个系统资源的利用效率，增强了整个系统的性能。
可选地，在第一终端设备确定不从候选资源集合中排除第八资源的情况下，第一终端设备将第二终端设备在第一数据所在时隙的循环前缀扩展CPE中的一个，作为第八资源的CPE。基于该方案，第一终端设备使用第二终端设备在第一数据所在时隙上的传输的CPE来设置用于频分复用的候选资源的CPE，而不再使用第一终端设备自己待传输的消息所关联或确定的CPE，从而可以减少对第二终端设备传输的影响。
作为一种可能的示例，第一终端设备将第二终端设备中的多个终端设备在第一数据所在时隙的多个CPE中的第一CPE，作为第八资源的CPE，该第一CPE大于或等于预设门限值。基于该方案，可以提高第一终端设备传输的性能。
在一种可能的实现方式中，第一CPE为第二终端设备中的多个终端设备在第一数据所在时隙上的多个CPE中的最大值。
可选地，在第一终端设备确定不从候选资源集合中排除第八资源的情况下，向第一终端设备的高层上报第八资源，以及第一终端设备在该第八资源的CPE(例如上述示例中的第一CPE)。作为一种可能的示例，第一终端设备的物理层(或高层以下的其他层)向第一终端设备的高层上报该第八资源，以及第一终端设备在该第八资源的CPE，其中，该第一终端设备的高层例如为第一终端设备的MAC层。
可以理解的是，“向第一终端设备的高层上报第八资源”的具体实现方式可以是：向第一终端设备的高层上报第一终端设备确定的候选资源集合，该候选资源集合包括该第八资源。
基于上述方案，可以解决CPE对齐的问题，避免因为第二终端设备与第一终端设备的定时不同带来的对LBT的影响。
可选地，第一终端设备与第二终端设备的同步源相同；和/或，第一终端设备与第二终端设备的同步源的类型相同；和/或，第一终端设备与第二终端设备同步到相同类型的同步源的转发次数相同。
示例性地，同步源的转发次数包括以下一种或多种：
第一种同步源为：直接同步到卫星的终端设备类同步源；
第二种同步源为：以转发一次的方式间接同步到卫星的终端设备类同步源；
第三种同步源为：直接同步到网络设备的终端设备类同步源；
第四种同步源为：以转发一次的方式间接同步到网络设备的终端设备类同步源；
第五种同步源为：以转发两次的方式同步到卫星的终端设备类同步源；
第六种同步源为：以转发两次的方式同步到网络设备的终端设备类同步源；
第七种同步源为：同步到终端设备自身的终端设备类同步源。
基于上述方案，通过设置第一终端设备和第二终端设备的同步源相同(或同步源类型)，可以确保第一终端设备和第二终端设备之间无定时差，从而避免了因定时差而导致的第一终端设备的传输和第二终端设备的传输相互阻塞的问题。
上述方案描述了第一终端设备在检测到第二终端设备的第一COT后，根据各种情况判断是否在候选资源集合排除第八资源的方案。可选地，在第一COT包括共享时隙的情况下，第一终端设备还可以进一步判断是否排除第一COT上的共享时隙的预留资源，下面结合示例进行说明。
第一终端设备在感知窗接收到第一信息之后，在满足以下第七条件的情况下，第一终端设备候选资源集合排除第一COT上的共享时隙的预留资源，第七条件包括以下两项：
第一COT上的共享时隙的发送设备为第一终端设备，或者第一COT上个共享时隙的接收设备为第一终端设备，且当前TB不是共享时隙上待发送的TB；
第一COT上的共享时隙的预留资源与候选资源集合有交集。
可以理解的是，第一COT上的共享时隙的发送设备为第一终端设备，指的是第一终端设备在第一COT上的共享时隙发送数据；第一COT上的共享时隙的接收设备为第一终端设备，指的是第一终端设备在第一COT上的共享时隙接收数据。
基于上述方案，在第一COT上的共享时隙与第一终端设备具有收发关系的情况下，第一终端设备从当前TB的候选资源合中排除第一COT上的共享时隙的候选资源，，从而避免产生资源不同TB间资源选择的冲突，或者产生发收之间的半双工冲突。
图15示出了本申请实施例提供的资源确定的方法1500的示例性流程图。该方法1500可以由第一终端设备执行，或者由第一终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以方法1500由第一终端设备执行为例进行说明。可以理解的是，方法1500可以单独实施，也可以与前面的其他实施例结合实施，本申请不作限定。
在方法1500中，第一终端设备优先在候选资源集合排除第一COT上的前面的M个连续时间单元的预留资源。下面结合图15中的各个步骤对方法1600作示例性说明。
S1501，第一终端设备在感知窗接收到第一信息，该第一信息指示第二终端设备的第一COT。
S1502，在第一终端设备确定满足第八条件的情况下，第一终端设备在候选资源集合排除第一COT上的第一个至第M个连续时间单元的预留资源，其中，M为大于或等于1的正整数；
第八条件包括：第一COT上的第一个至第M个连续资源用于周期传输，和/或第一个至第M个连续时间单元上的参考信号接收功率RSRP小于或等于第六门限值。
可选地，所述第八条件还包括：所述第一COT上的第一个至第M个连续时间单元上传输的第一数据的优先级大于或等于第七门限。
作为一种可能的实现方式，第一终端设备可以在确定从该候选资源集合排除第一COT上的M个时间单元的预留资源，且在满足第八条件的情况下，在候选资源集合排除第一COT上的第一个至第M个连续时间单元的预留资源。本申请对第一终端设备确定从该候选资源集合排除第一COT上的M个 时间单元的预留资源的实现方式不作限定。
为了便于理解方法1500所提供的方案，下面结合图16对方法1500做示例性说明：假设第一终端设备确定从候选资源集合排除第一COT上的3个时间单元的预留资源，则在满足第八条件的情况下，第一终端设备第一COT上的前面3个连续时间单元的预留资源(如图16所示)。
基于上述方案，第一终端设备优先在候选资源集合排除第一COT上的第一个至第M个连续时间单元的预留资源，可以防止第二终端设备在第一COT上的传输在中间被中断，从而提高第二终端设备的传输性能。
图17示出了本申请实施例提供的资源确定的方法1700的示例性流程图。该方法1700可以由第一终端设备执行，或者由第一终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以方法1700由第一终端设备执行为例进行说明。
在方法1700中，第一终端设备在确定在候选者源集合排除第一COT上的第一时间单元的预留资源的情况下，也排除第一COT上位于第一时间单元之间的预留资源。下面结合图17中的各个步骤对方法1700作示例性说明。
S1701，第一终端设备在感知窗接收到第一信息，该第一信息指示第二终端设备的第一COT。
S1702，在第一终端设备确定从选择窗中的候选资源集合排除第一COT上的第一时间单元的预留资源的情况下，第一终端设备从候选资源集合中，排除第一COT上位于第一时间单元之前的预留资源。
可选地，在满足第九条件的情况下，第一终端设备从候选资源集合中，排除第一COT上位于第一时间单元之前的预留资源。第九条件包括以下一项或多项：
第一时间单元上承载的传输优先级大于或等于第七门限值；
第一终端设备为第一时间单元上传输的信息的接收设备；
第一时间单元不是第一COT上的最后一个时间单元。
可选地，第一终端设备也可以从候选资源集合排除第一COT上位于第一时间单元之前的预留资源，本申请不作限定。
为了便于理解方法1700所提供的方案，下面结合图18对方法1700做示例性说明：假设第一终端设备确定从候选资源集合排除第一COT上的第3个时间单元的预留资源，则第一终端设备在候选资源集合排除第一COT上前三个时间单元的预留资源(如图18所示)。
基于上述方案，在第一终端设备确定排除第一时间单元的预留资源的情况下，由于第一时间单元上的传输机会搭载整个第一COT才能被成功传输，因此，第一终端设备将位于第一时间单元之间的预留资源都排除，至少可以保障第二终端设备在第一时间单元上的传输，从而提高第二终端设备的传输性能。
图19示出了本申请实施例提供的资源确定的方法1900的示例性流程图。该方法1900可以由第一终端设备执行，或者由第一终端设备的组成部件(例如芯片或者电路)执行，为了方便，下面以方法1900由第一终端设备执行为例进行说明。
在方法1900中，第一终端设备在确定在候选资源集合保留第一时间单元的预留资源的情况下，保留第一COT上的全部时间单元的预留资源，该全部时间单元包括第一时间单元。下面结合图19中的各个步骤对方法1900作示例性说明。
S1901，第一终端设备在感知窗接收到第一信息，该第一信息指示第二终端设备的第一COT。
S1902，在第一终端设备确定在选择窗内的候选资源集合中不排除第一COT上的第一时间单元的预留资源的情况下，第一终端设备从候选资源集合中不排除第一COT上的全部时间单元的预留资源。
示例性地，第一COT上的全部时间单元包括以下中的一种或多种：
第一COT上用于第二终端设备发送数据的时间单元；
第一COT上由第二终端设备共享给其他终端设备发送数据的时间单元；
第一COT上用于第二终端设备传输反馈信息的时间单元；
第一COT上用于第二终端设备发送同步信号的时间单元。
可选地，在满足第十条件的情况下，第一终端设备在候选资源集合不排除第一COT上的全部时间 单元的预留资源。第十条件包括以下一项或多项：第一时间单元在COT中的优先级小于或等于第八门限值；或者，第一时间单元中承载的传输的优先级大于或等于第九门限值；或者，第一时间单元为第一COT中的第k个时间，k小于或等于第十门限值。
为了便于理解方法1900所提供的方案，下面结合图20对方法1900做示例性说明：假设第一终端设备确定在候选资源集合不排除第一COT上的第1个时间单元的预留资源，则第一终端设备在候选资源集合不排除第一COT上全部时间单元的预留资源(如图20所示)。
基于上述方案，当第一终端设备不排除第一COT中的第一时间单元，若第一时间单元上的传输为第一COT中优先级较高的传输(大于预设门限值)，或者是位于第一COT中的前面(如第一COT中的第一个时间单元)，则如果第一终端设备不排除第一时间单元的预留资源(即第一终端设备占用了第一时间单元的预留资源)，则可能导致第一COT上的传输被中断，这个时候，第一终端设备不排除第一COT上全部时间单元的预留资源，反而能够提升资源的使用效率。
可以理解，在本申请的各实施例中，主要以第一终端装置和第二终端装置之间的交互为例进行示例性说明，本申请不限于此。
还可以理解，本申请的各实施例中的一些可选的特征，在某些场景下，可以不依赖于其他特征，也可以在某些场景下，与其他特征进行结合，不作限定。
还可以理解，本申请的各实施例中的方案可以进行合理的组合使用，并且实施例中出现的各个术语的解释或说明可以在各个实施例中互相参考或解释，对此不作限定。
还可以理解，上述各个方法实施例中，由通信设备实现的方法和操作，也可以由可由通信设备的组成部件(例如芯片或者电路)来实现。
相应于上述各方法实施例给出的方法，本申请实施例还提供了相应的装置，所述装置包括用于执行上述各个方法实施例相应的模块。该模块可以是软件，也可以是硬件，或者是软件和硬件结合。可以理解的是，上述各方法实施例所描述的技术特征同样适用于以下装置实施例。
图21是本申请实施例提供的一种通信装置10的示意性框图。该装置10包括收发单元11。收发单元11可以用于实现相应的通信功能。收发单元11还可以称为通信接口或通信单元。
该装置10还包括处理单元12。处理单元12可以用于进行数据处理。
可选地，该装置10还包括存储单元13，该存储单元13可以用于存储指令和/或数据，处理单元12可以读取存储单元中的指令和/或数据，以使得装置实现前述各个方法实施例中终端设备的动作。
在一种设计中，该装置10可以是前述实施例中的第一终端设备，也可以是第一终端设备的组成部件(如芯片)。该装置10可实现对应于上文方法实施例中的第一终端设备执行的步骤或者流程，其中，收发单元11可用于执行上文方法实施例中第一终端设备的收发相关的操作，处理单元12可用于执行上文方法实施例中第一终端设备的处理相关的操作。
一种可能的实现方式，收发单元11，用于接收第一信息，第一信息指示第二终端设备的第一信道占用时间COT，第一COT包括第一反馈信道占用的资源；处理单元12，用于从选择窗中的候选资源集合中排除第一反馈信道关联的第一数据的预留资源，并且，还用于从候选资源集合中排除第一反馈信道的预留资源。
另一种可能的实现方式，收发单元11，用于在感知窗中接收第一信息，第一信息指示第二终端设备的第一信道占用时间COT，第一COT的预留资源为第一资源，第一资源的数量为N1；处理单元12，用于在选择窗中的候选资源集合中排除第二资源，第二资源的数量为N2，第二资源包括第一资源，且N2大于N1。
又一种可能的实现方式，收发单元11，用于在感知窗中接收第一信息，第一信息指示第二终端设备的第一COT，第一COT包括第五资源，第五资源用于发送数据，第五资源的数量为N1，第一COT的预留资源为第六资源，第六资源的数量为N2，N2大于N1；处理单元12，用于从选择窗中的候选资源集合排除第七资源，该第七资源包括第五资源或第六资源。
又一种可能的实现方式，收发单元11，用于在感知窗中接收第一信息，第一信息指示第二终端设备的第一信道占用时间COT；处理单元12，用于确定是否从选择窗中的候选资源集合中排除第八资源，第八资源与第九资源位于同一时间单元，且第八资源与第九资源的频域不同，第九资源是用于第一COT 上发送的第一数据预留的资源。
又一种可能的实现方式，收发单元11，用于在感知窗中接收到第一信息，该第一信息指示第二终端设备的第一信道占用时间COT的信息；处理单元12，用于在确定满足第八条件的情况下，在候选资源集合排除第一COT上的第一个至第M个连续时间单元的预留资源，其中，M为大于或等于1的正整数，选择窗位于感知窗之后；第八条件包括：第一COT上的第一个至第M个连续资源用于周期传输，和/或第一个至第M个连续时间单元上的参考信号接收功率RSRP小于或等于第六门限值。
又一种可能的实现方式，收发单元11，用于在感知窗中接收第一信息，第一信息用于指示第二终端设备的第一信道占用时间COT的信息；处理单元12，用于在确定从选择窗中的候选资源集合排除第一COT上的第一时间单元的预留资源的情况下，从候选资源集合中，排除第一COT上位于第一时间单元之前的预留资源。
又一种可能的实现方式，收发单元11，用于在感知窗中接收第一信息，第一信息用于指示第二终端设备的第一信道占用时间COT的信息；处理单元12，用于在确定在选择窗内的候选资源集合中不排除第一COT上的第一时间单元的预留资源的情况下，从候选资源集合中不排除第一COT上的全部时间单元的预留资源，该全部时间单元包括第一时间单元。
该装置10可实现对应于根据本申请实施例的方法实施例中的第一终端设备执行的步骤或者流程，该装置10可以包括用于执行图5、图9、图11、图12、图13、图15、图17、图19所示实施例中的第一终端设备执行的方法的单元。
在另一种设计中，该装置10可以是前述实施例中的第二终端设备，也可以是第二终端设备的组成部件(如芯片)。该装置10可实现对应于上文方法实施例中的第二终端设备执行的步骤或者流程，其中，收发单元11可用于执行上文方法实施例中第二终端设备的收发相关的操作，处理单元12可用于执行上文方法实施例中第二终端设备的处理相关的操作。
一种可能的实现方式，处理单元12，用于根据以下信息中的一项或多项确定第三资源：第二终端设备的信道接入优先级类型CAPC对应的最大COT长度mCOT、第二终端设备配置的PSFCH资源所占用的时间单元数、需共享COT的资源数，其中，第三资源为第二终端设备为发送第二数据预留的资源，第三资源的数量为N2，该第四资源的数量为N1，该N2大于该N1；收发单元11，用于向第一终端设备发送第三信息，第三信息指示第三资源。
该装置10可实现对应于根据本申请实施例的方法实施例中的第二终端设备执行的步骤或者流程，该装置10可以包括用于执行图5、图9、图11、图12、图13、图15、图17、图19所示实施例中的第二终端设备执行的方法的单元。
有关该装置10更详细的描述可以参考上文方法实施例中相关描述直接得到，在此不再赘述。
应理解，各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明，为了简洁，在此不再赘述。
还应理解，这里的装置10以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置10可以具体为上述实施例中的终端设备(如第一终端设备，又如第二终端设备)，可以用于执行上述各方法实施例中与终端设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
上述各个方案的装置10具有实现上述方法中终端设备(如第一终端设备，又如第二终端设备)所执行的相应步骤的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块；例如收发单元可以由收发机替代(例如，收发单元中的发送单元可以由发送机替代，收发单元中的接收单元可以由接收机替代)，其它单元，如处理单元等可以由处理器替代，分别执行各个方法实施例中的收发操作以及相关的处理操作。
此外，上述收发单元11还可以是收发电路(例如可以包括接收电路和发送电路)，处理单元可以是处理电路。
需要指出的是，图21中的装置可以是前述实施例中的设备，也可以是芯片或者芯片系统，例如：片上系统(system on chip，SoC)。其中，收发单元可以是输入输出电路、通信接口；处理单元为该芯 片上集成的处理器或者微处理器或者集成电路。在此不做限定。
图22是本申请实施例提供的一种通信装置20的示意性框图。该装置20包括处理器21，处理器21与存储器22耦合。可选地，还包括存储器22，用于存储计算机程序或指令和/或数据，处理器21用于执行存储器22存储的计算机程序或指令，或读取存储器22存储的数据，以执行上文各方法实施例中的方法。
可选地，处理器21为一个或多个。
可选地，存储器22为一个或多个。
可选地，该存储器22与该处理器21集成在一起，或者分离设置。
可选地，如图22所示，该装置20还包括收发器23，收发器23用于信号的接收和/或发送。例如，处理器21用于控制收发器23进行信号的接收和/或发送。
作为一种方案，该装置20用于实现上文各个方法实施例中由终端设备执行的操作。
例如，处理器21用于执行存储器22存储的计算机程序或指令，以实现上文各个方法实施例中第一终端设备或第二终端设备的相关操作。
在实现过程中，上述方法的各步骤可以通过处理器21中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器22，处理器21读取存储器22中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
应理解，本申请实施例中，处理器可以为一个或多个集成电路，用于执行相关程序，以执行本申请方法实施例。
处理器(例如，处理器21)可包括一个或多个处理器并实现为计算设备的组合。处理器可分别包括以下一种或多种：微处理器、微控制器、数字信号处理器(digital signal processor，DSP)、数字信号处理设备(digital signal processing device，DSPD)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate array，FPGA)、可编程逻辑器件(programmable logic device，PLD)、选通逻辑、晶体管逻辑、分立硬件电路、处理电路或其它合适的硬件、固件和/或硬件和软件的组合，用于执行本公开中所描述的各种功能。处理器可以是通用处理器或专用处理器。例如，处理器21可以是基带处理器或中央处理器。基带处理器可用于处理通信协议和通信数据。中央处理器可用于使装置执行软件程序，并处理软件程序中的数据。此外，处理器的一部分还可以包括非易失性随机存取存储器。例如，处理器还可以存储设备类型的信息。
本申请中的程序在广义上用于表示软件。软件的非限制性示例包括：程序代码、程序、子程序、指令、指令集、代码、代码段、软件模块、应用程序、或软件应用程序等。程序可以在处理器和/或计算机中运行。以使得装置执行本申请中描述的各种功能和/或过程。
存储器(例如，存储器22)可存储供处理器(例如，处理器21)在执行软件时所需的数据。存储器可以使用任何合适的存储技术实现。例如，存储器可以是处理器和/或计算机能够访问的任何可用存储介质。存储介质的非限制性示例包括：随机存取存储器(random access memory，RAM)、只读存储器(read-only memory，ROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)、光盘只读存储器(Compact Disc-ROM,CD-ROM)、静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)、可移动介质、光盘存储器、磁盘存储介质、磁存储设备、闪存、寄存器、状态存储器、远程挂载存储器、本地或远程存储器组件，或能够携带或存储软件、数据或信息并可由处理器/计算机访问的任何其它介质。需要说明的是，本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
存储器(例如，存储器22)和处理器(例如，处理器21)可以分开设置或集成在一起。存储器可以用于与处理器连接，使得处理器能够从存储器中读取信息，在存储器中存储和/或写入信息。存储器可以集成在处理器中。存储器和处理器可以设置在集成电路中(例如，该集成电路可以设置在UE或 其他网络节点中)。
图23是本申请实施例提供的一种芯片系统30的示意性框图。该芯片系统30(或者也可以称为处理系统)包括逻辑电路31以及输入/输出接口(input/output interface)32。
其中，逻辑电路31可以为芯片系统30中的处理电路。逻辑电路31可以耦合连接存储单元，调用存储单元中的指令，使得芯片系统30可以实现本申请各实施例的方法和功能。输入/输出接口32，可以为芯片系统30中的输入输出电路，将芯片系统30处理好的信息输出，或将待处理的数据或信令信息输入芯片系统30进行处理。
作为一种方案，该芯片系统30用于实现上文各个方法实施例中由终端设备执行的操作。
例如，逻辑电路31用于实现上文方法实施例中由第一终端设备执行的处理相关的操作，如，图5、图9、图11、图12、图13、图15、图17、图19中所示实施例中第一终端设备执行的处理相关的操作；输入/输出接口32用于实现上文方法实施例中由第一终端设备执行的发送和/或接收相关的操作，如，图5、图9、图11、图12、图13、图15、图17、图19所示实施例中的第一终端设备执行的发送和/或接收相关的操作。
再例如，逻辑电路31用于实现上文方法实施例中由第二终端设备执行的处理相关的操作，如，图11所示实施例中第二终端设备执行的处理相关的操作；输入/输出接口32用于实现上文方法实施例中由第二终端设备执行的发送和/或接收相关的操作，如，图11所示实施例中的第二终端设备执行的发送和/或接收相关的操作。
本申请实施例还提供一种计算机可读存储介质，其上存储有用于实现上述各方法实施例中由终端设备(如第一终端设备，又如第二终端设备)执行的方法的计算机指令。
本申请实施例还提供一种计算机程序产品，包含指令，该指令被计算机执行时以实现上述各方法实施例中由终端设备(如第一终端设备，又如第二终端设备)执行的方法。
本申请实施例还提供一种通信系统，该通信系统包括上文各实施例中的第一终端设备和第二终端设备。
上述提供的任一种装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例，此处不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅是示意性的，例如，上述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。此外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
上述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元实现本申请提供的方案。
另外，在本申请各个实施例中的各功能单元可以集成在一个单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。例如，计算机可以是个人计算机，服务器，或者网络设备等。计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。关于计算机可读存储介质，可以参考上文描述。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (22)

  1. 一种资源确定的方法，其特征在于，包括：
    第一终端设备在感知窗中接收到第一信息，所述第一信息指示第二终端设备的第一信道占用时间COT；
    所述第一终端设备确定是否从选择窗中的候选资源集合中排除第八资源，所述第八资源与第九资源位于同一时间单元，且所述第八资源与所述第九资源的频域不同，所述第九资源是所述第一COT上发送的第一数据的预留资源。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    在满足第三条件的情况下，所述第一终端设备确定所述第一COT上发送的所述第一数据的预留资源；其中，所述第三条件包括以下一项或多项：
    指示所述第一数据的信息中包括预留周期，或指示所述第一COT的信息中包括所述预留周期；
    所述第一终端设备在所述感知窗中检测到的所述第一数据的参考信号接收功率RSRP大于或等于第一门限值；
    所述第一终端设备获取第四信息，所述第四信息用于指示所述第一终端设备基于COT的结构选择候选资源。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一数据的预留资源所在的时隙为其中，q为正整数，m为所述第一数据所在的时隙，P′rsvp_RX为所述第一数据的预留周期或所述第一COT的预留周期。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述第一数据的预留资源是根据所述第一数据的频域资源、时域资源以及所述第一数据对应的侧行链路控制信息SCI指示的预留周期确定的资源。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述第一终端设备确定是否从选择窗中的候选资源集合中排除第八资源，包括：
    在满足第五条件的情况下，所述第一终端设备确定在所述候选资源集合中排除所述第八资源，所述第五条件包括：
    所述第一终端设备为所述第二终端设备的接收端设备；和/或
    所述第一终端设备获取到第七信息，所述第七信息指示所述第一终端设备不在第七资源上进行频分复用，所述第七信息来自所述第二终端设备或网络设备，或所述第七信息为预定义的信息或预配置的信息。
  6. 根据权利要求5所述的方法，其特征在于，所述方法还包括：
    在不满足所述第五条件的情况下，所述第一终端设备确定不在所述候选资源集合排除所述第八资源。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述第一终端设备确定是否从选择窗中的候选资源集合中排除第八资源，包括：
    在满足第六条件的情况下，所述第一终端设备确定在所述候选资源集合中不排除所述第八资源，所述第六条件包括：
    所述第一终端设备不是所述第二终端设备的接收端设备；和/或
    所述第一终端设备获取到第八信息，所述第八信息指示所述第一终端设备在所述第一数据的预留资源上进行频分复用，所述第八信息来自所述第二终端设备或网络设备，或所述第八信息为预定义的信息或预配置的信息。
  8. 根据权利要求7所述的方法，其特征在于，所述方法还还包括：
    在不满足所述第六条件的情况下，所述第一终端设备确定不在所述候选资源集合中排除所述第八资源。
  9. 根据权利要求7或8所述的方法，其特征在于，所述第六条件还包括：
    所述第一COT上发送的所述第一数据的优先级高于第二门限值；或，
    所述第一COT上发送的所述第一数据的信道接入类型高于第三门限值。
  10. 根据权利要求7或8所述的方法，其特征在于，所述第六条件还包括：
    所述第一COT上发送的所述第一数据的优先级低于第二门限值；或
    所述第一COT上发送的所述第一数据的信道接入优先级低于第三门限值。
  11. 根据权利要求1至10中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备将所述第二终端设备在所述第一数据所在时隙的循环前缀扩展CPE中的一个，作为所述第八资源的CPE。
  12. 根据权利要求11所述的方法，其特征在于，所述第一终端设备将所述第二终端设备在所述第一数据所在时隙的循环前缀扩展CPE中的一个，作为第八资源的CPE，包括：
    所述第一终端设备将所述第二终端设备中的多个终端设备在所述第一数据所在的时隙上的多个CPE中第一CPE，作为所述第八资源的CPE，所述第一CPE大于或等于第一门限值。
  13. 根据权利要求12所述的方法，其特征在于，所述第一CPE为所述第二终端设备中的所述多个终端设备在所述第一数据所在时隙上的多个CPE中的最大值。
  14. 根据权利要求1至13中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备向所述第一终端设备的高层上报所述第八资源，以及所述第一终端设备在所述第八资源的CPE。
  15. 根据权利要求1至14中任一项所述的方法，其特征在于，所述第一数据为所述第二终端设备发送的数据，或者是其他终端设备在所述第一COT上的共享资源上发送的数据。
  16. 根据权利要求1至15中任一项所述的方法，其特征在于，所述第一终端设备与所述第二终端设备的同步源相同；和/或，
    所述第一终端设备与所述第二终端设备的所述同步源的类型相同；和/或，
    所述第一终端设备与所述第二终端设备同步到相同类型的同步源的转发次数相同。
  17. 一种通信装置，其特征在于，包括用于执行权利要求1至16中任一项所述的方法的模块或单元。
  18. 一种通信装置，其特征在于，包括处理器，所述处理器，用于执行存储器中存储的计算机程序或指令，以使得所述装置执行权利要求1至16中任一项所述的方法。
  19. 根据权利要求18所述的装置，其特征在于，所述装置还包括所述存储器和/或通信接口，所述通信接口与所述处理器耦合，
    所述通信接口，用于输入和/或输出信息。
  20. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有计算机程序或指令，当所述计算机程序或指令在通信装置上运行时，使得所述通信装置执行如权利要求1至16中任一项所述的方法。
  21. 一种计算机程序产品，其特征在于，所述计算机程序产品包括用于执行如权利要求1至16中任一项所述的方法的计算机程序或指令。
  22. 一种芯片，其特征在于，所述芯片与存储器耦合，用于读取并执行所述存储器中存储的程序指令，以实现如权利要求1至16中任一项所述的方法。
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