WO2024026699A1 - 资源选择方法及装置 - Google Patents

资源选择方法及装置 Download PDF

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Publication number
WO2024026699A1
WO2024026699A1 PCT/CN2022/109812 CN2022109812W WO2024026699A1 WO 2024026699 A1 WO2024026699 A1 WO 2024026699A1 CN 2022109812 W CN2022109812 W CN 2022109812W WO 2024026699 A1 WO2024026699 A1 WO 2024026699A1
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Prior art keywords
cot
resource
time
resource set
sharing information
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PCT/CN2022/109812
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English (en)
French (fr)
Inventor
赵文素
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北京小米移动软件有限公司
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Priority to PCT/CN2022/109812 priority Critical patent/WO2024026699A1/zh
Publication of WO2024026699A1 publication Critical patent/WO2024026699A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]

Definitions

  • the present disclosure relates to the field of mobile communication technology, and in particular, to a resource selection method and device.
  • SL sidelink
  • UE User Equipment
  • Sidelink-Unlicense, SL-U the Channel Ocuppancy Time (COT) sharing mechanism
  • COT Channel Ocuppancy Time
  • the present disclosure proposes a resource selection method and device, which enables the UE to select transmission resources under the COT sharing mechanism, ensuring the reliability of the UE using the transmission resources to transmit data, while effectively avoiding the COT-initiated communication between the UE and another UE. Failure of the COT sharing mechanism.
  • a first aspect embodiment of the present disclosure provides a resource selection method, executed by a first UE.
  • the method includes: receiving channel occupancy time (COT) sharing information from a second UE; sharing according to the COT At least one of the information and a preset threshold determines whether the first UE can share the COT indicated by the COT sharing information; determines a candidate resource set located in the resource selection window in the time domain through resource sensing; when sharing according to the COT When the information determines that the first UE cannot share the COT, determine an available resource set from the candidate resource set, where the available resource set includes resources in the candidate resource set that are not within the COT in the time domain; and Select resources in the available resource set as transmission resources of the first UE.
  • COT channel occupancy time
  • determining whether the first UE can share the COT indicated by the COT sharing information according to at least one of the COT sharing information and a preset threshold includes: determining whether the first UE can share the COT indicated by the COT sharing information. The UE of the COT; and when the UEs that can share the COT do not include the first UE, determining that the first UE cannot share the COT indicated by the COT sharing information.
  • determining whether the first UE can share the COT indicated by the COT sharing information according to at least one of the COT sharing information and a preset threshold includes: determining whether the first UE can share the COT indicated by the COT sharing information. UE of COT; when the UE that can share the COT does not include the first UE, determine whether the reference signal received power RSRP measurement value of the physical direct link channel corresponding to the COT sharing information is greater than the preset RSRP threshold; And when the RSRP measurement value is greater than the preset RSRP threshold, it is determined that the first UE cannot share the COT indicated by the COT sharing information.
  • determining the available resource set from the candidate resource set includes: determining the time window of the COT according to the total length of the COT in the COT shared information; determining the time window between the resource selection window and the time window of the COT an overlapping time window; and determining a resource set that is not within the overlapping time window in the time domain from the candidate resource set as the available resource set.
  • determining the overlapping time window between the resource selection window and the COT time window includes: determining the time window between the starting time of the resource selection window and the starting time of the COT time window. The later time of is determined as the start time of the overlapping time window, and the earlier time between the end time of the time window of the COT and the end time of the resource selection window is determined as the end of the overlapping time window. time.
  • a second aspect embodiment of the present disclosure provides a resource selection method, the method being executed by a first UE, including determining a candidate resource set in a resource selection window in the time domain through resource sensing; selecting from the candidate resource set the first resource; receiving COT sharing information from the second UE; determining whether the first resource at least partially coincides with the second resource in the COT indicated by the COT sharing information according to the COT sharing information, wherein the second resource
  • the UE allocates the second resource to the third UE through the COT sharing information; when it is determined that the first resource and the second resource at least partially overlap, according to the priority of the data to be transmitted by the first UE
  • the transmission resource of the first UE is selected based on the priority of the data to be transmitted of the third UE.
  • selecting the transmission resource of the first UE according to the priority of the data to be transmitted by the first UE and the priority of the data to be transmitted by the third UE includes: when the first UE's When the priority of the data to be transmitted is greater than the priority of the data to be transmitted of the third UE, the first resource is selected as the transmission resource.
  • selecting the transmission resource of the first UE according to the priority of the data to be transmitted by the first UE and the priority of the data to be transmitted by the third UE includes: when the first UE's When the priority of the data to be transmitted is less than the priority of the data to be transmitted by the third UE, and the priority of the data to be transmitted by the third UE is greater than the preemption priority threshold, the available resource set is determined from the candidate resource set, where The available resource set includes resources in the candidate resource set that are not within the COT in the time domain; and the resources in the available resource set are selected as the transmission resources.
  • determining the available resource set from the candidate resource set includes: determining the time window of the COT according to the total length of the COT in the COT shared information; determining the time window between the resource selection window and the time window of the COT an overlapping time window; and determining a resource set that is not within the overlapping time window in the time domain from the candidate resource set as the available resource set.
  • determining the overlapping time window between the resource selection window and the COT time window includes: determining the time window between the starting time of the resource selection window and the starting time of the COT time window. The later time of is determined as the start time of the overlapping time window, and the earlier time between the end time of the time window of the COT and the end time of the resource selection window is determined as the end of the overlapping time window. time.
  • a third aspect embodiment of the present disclosure provides a resource selection device.
  • the device includes: a transceiver module for receiving channel occupancy time COT sharing information from the second UE; and a processing module for receiving the COT sharing information according to the COT sharing information. Determine whether the resource selection device can share the COT indicated by the COT sharing information with at least one of the preset thresholds; determine the candidate resource set located in the resource selection window in the time domain through resource sensing; when based on the COT sharing information When it is determined that the resource selection device cannot share the COT, determine an available resource set from the candidate resource set, wherein the available resource set includes resources in the candidate resource set that are not within the COT in the time domain; and select The resources in the available resource set are used as transmission resources of the resource selection device.
  • the processing module is further configured to: determine the UE that can share the COT according to the COT sharing information; and when the UE that can share the COT does not include the resource selection device, determine the resource selection The device cannot share the COT indicated by the COT sharing information.
  • the processing module is further configured to: determine a UE capable of sharing the COT according to the COT sharing information; when the UE capable of sharing the COT does not include the resource selection device, determine the COT sharing information Whether the reference signal received power RSRP measurement value of the corresponding physical direct link channel is greater than a preset RSRP threshold; and when the RSRP measurement value is greater than the preset RSRP threshold, it is determined that the resource selection device cannot share the COT COT indicated by shared information.
  • the processing module is further configured to: determine the time window of the COT according to the total length of the COT in the COT shared information; determine the overlapping time window between the resource selection window and the time window of the COT ; and determining a resource set that is not within the overlapping time window in the time domain from the candidate resource set as the available resource set.
  • the processing module is further configured to determine a later time between the starting time of the resource selection window and the starting time of the COT time window as the starting time of the overlapping time window. , or determine the earlier time between the end time of the COT time window and the end time of the resource selection window as the end time of the overlapping time window.
  • a fourth aspect embodiment of the present disclosure provides a resource selection device.
  • the device includes: a transceiver module for receiving channel occupancy time COT shared information from the second UE; and a processing module for determining the time domain through resource awareness. on the candidate resource set in the resource selection window; select a first resource from the candidate resource set; determine whether the first resource is at least the second resource in the COT indicated by the COT sharing information according to the COT sharing information. Partial overlap, wherein the second UE allocates the second resource to the third UE through the COT sharing information; when it is determined that the first resource and the second resource at least partially overlap, according to the first The priority of one UE's data to be transmitted and the priority of the third UE's data to be transmitted select the transmission resources of the first UE.
  • the processing module is further configured to: select the first resource as the transmission resource when the priority of the data to be transmitted by the first UE is greater than the priority of the data to be transmitted by the third UE. resource.
  • the processing module is also configured to: when the priority of the data to be transmitted by the first UE is less than the priority of the data to be transmitted by the third UE, and the priority of the data to be transmitted by the third UE is When the priority is greater than the preemption priority threshold, determine an available resource set from the candidate resource set, where the available resource set includes resources that are not within the COT in the time domain of the candidate resource set; and select the available resource set. resources as the transmission resources.
  • the processing module is further configured to: determine the time window of the COT according to the total length of the COT in the COT shared information; determine the overlapping time window between the resource selection window and the time window of the COT ; and determining a resource set that is not within the overlapping time window in the time domain from the candidate resource set as the available resource set.
  • the processing module is further configured to determine a later time between the starting time of the resource selection window and the starting time of the COT time window as the starting time of the overlapping time window. , or determine the earlier time between the end time of the COT time window and the end time of the resource selection window as the end time of the overlapping time window.
  • a fifth aspect embodiment of the present disclosure provides a communication device, including: a transceiver; a memory; and a processor, respectively connected to the transceiver and the memory, and configured to execute computer-executable instructions on the memory. , controls the wireless signal transmission and reception of the transceiver, and can implement the resource selection method of the above-mentioned first aspect or second aspect embodiment.
  • a sixth aspect embodiment of the present disclosure provides a communication system, including a first UE and a second UE, wherein the first UE is configured to perform the resource selection method of the above-mentioned first aspect embodiment.
  • a seventh embodiment of the present disclosure provides a communication system, including a first UE, a second UE and a third UE, wherein the first UE is configured to perform the resource selection method of the above-mentioned embodiment of the second aspect.
  • An eighth aspect embodiment of the present disclosure provides a computer storage medium, wherein the computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by a processor, the above-mentioned first aspect or the third aspect can be realized.
  • Resource selection method according to the second aspect embodiment.
  • Embodiments of the present disclosure provide a resource selection method and device.
  • the first UE receives COT sharing information from the second UE, determines whether the first UE can share the COT indicated by the COT sharing information according to the COT sharing information, and determines the time domain through resource sensing.
  • the available resource set is determined from the candidate resource set, and the resources in the available resource set are selected as the transmission resources of the first UE.
  • the disclosed resource selection method and device when the first UE cannot share the COT, prevents the transmission resources selected by the first UE from being allocated by the second UE to other UEs through the COT sharing mechanism, thereby effectively avoiding the second UE from interacting with other UEs.
  • the failure of the COT sharing mechanism between UEs also ensures the reliability of the first UE using transmission resources to transmit data.
  • Embodiments of the present disclosure also provide a resource selection method and device.
  • the first UE receives COT sharing information from the second UE, determines a candidate resource set located in the resource selection window in the time domain through resource sensing, and selects the third candidate resource set from the candidate resource set.
  • a resource it is determined according to the COT sharing information whether the first resource at least partially overlaps with the second resource allocated by the second UE to the third UE in the COT indicated by the COT sharing information, when it is determined that the first resource and the second resource at least partially overlap , select the transmission resource of the first UE according to the priority of the data to be transmitted by the first UE and the priority of the data to be transmitted by the third UE.
  • the resource selection method and device of the present disclosure when the first UE is selecting When the resources have not obtained COT sharing information before and the transmission resources selected by the first UE and the resources allocated by the second UE to the third UE through the COT sharing mechanism at least partially overlap, resource conflicts between the first UE and the third UE can be avoided. This effectively avoids the failure of the COT sharing mechanism between the second UE and the third UE, and at the same time ensures the reliability of the first UE using transmission resources to transmit data.
  • Figure 1 is a schematic architectural diagram of a communication system according to an embodiment of the present disclosure
  • Figure 2 is a schematic flowchart of a resource selection method according to an embodiment of the present disclosure
  • Figure 3 is a schematic flowchart of a resource selection method according to an embodiment of the present disclosure
  • Figure 4 is a schematic flowchart of a resource selection method according to an embodiment of the present disclosure
  • Figure 5 is a schematic diagram of a resource selection method according to an embodiment of the present disclosure.
  • Figure 6 is a schematic flowchart of a resource selection method according to an embodiment of the present disclosure.
  • Figure 7 is a schematic flowchart of a resource selection method according to an embodiment of the present disclosure.
  • Figure 8 is a schematic flowchart of a resource selection method according to an embodiment of the present disclosure.
  • Figure 9 is a schematic diagram of a resource selection method according to an embodiment of the present disclosure.
  • Figure 10 is a block diagram of a resource selection device according to an embodiment of the present disclosure.
  • Figure 11 is a block diagram of a resource selection device according to an embodiment of the present disclosure.
  • Figure 12 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure.
  • Figure 13 is a schematic structural diagram of a chip provided by an embodiment of the present disclosure.
  • the network device configures various transmission parameters for data transmission for the direct connected communication device 1.
  • the direct-connect communication device 1 serves as the data sending end
  • the direct-connect communication device 2 serves as the data receiving end, and the two communicate directly.
  • the links for communication between the network device and the directly connected communication device are uplink and downlink, and the link between the directly connected communication device and the directly connected communication device is a direct link.
  • the wireless communication system shown in Figure 1 is only a schematic illustration, and the wireless communication system may also include other network equipment, such as core network equipment, wireless relay equipment, wireless backhaul equipment, etc. Not shown in Figure 1.
  • the embodiments of the present disclosure do not limit the number of network devices and terminals included in the wireless communication system.
  • the wireless communication system of the embodiment of the present disclosure is a network that provides wireless communication functions.
  • Wireless communication systems can use different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA), Frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency division multiple access (single Carrier FDMA, SC-FDMA), carrier sense multiple access Access/Conflict Avoidance (Carrier Sense Multiple Access with Collision Avoidance).
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA time division multiple access
  • FDMA Frequency division multiple access
  • OFDMA orthogonal frequency-division multiple access
  • single carrier frequency division multiple access single Carrier FDMA, SC-FDMA
  • carrier sense multiple access Access/Conflict Avoidance Carrier Sense Multiple Access with Collision Avoidance
  • 5G networks can also be called new wireless networks ( New Radio, NR).
  • the network equipment involved in this disclosure may also be called a wireless access network equipment.
  • the wireless access network equipment may be: a base station, an evolved node B (eNB), a home base station, an access point (AP) in a wireless fidelity (WIFI) system, or a wireless relay node , wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc. It can also be a gNB in the NR system, or it can also be a component or part of the equipment that constitutes the base station, etc. .
  • the network device can also be a vehicle-mounted device. It should be understood that in the embodiments of the present disclosure, there are no limitations on the specific technology and specific equipment form used by the network equipment.
  • the terminal involved in this disclosure may also be called terminal equipment, user equipment (User Equipment, UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), etc., and is a type of terminal that provides users with Devices for voice and/or data connectivity, for example, the terminal may be a handheld device, a vehicle-mounted device, etc. with wireless connection capabilities.
  • some examples of terminals are: smartphones (Mobile Phone), pocket computers (PocketPersonal Computer, PPC), PDAs, personal digital assistants (Personal Digital Assistant, PDA), laptops, tablets, wearable devices, or vehicle-mounted Equipment etc.
  • V2X vehicle-to-everything
  • the terminal device may also be a vehicle-mounted device. It should be understood that the embodiments of the present disclosure do not limit the specific technology and specific equipment form used by the terminal.
  • the communication scenario of direct communication between directly connected communication devices may also be a terminal-to-device (Deviceto-Device, D2D) communication scenario.
  • Direct-connected communication devices for direct communication in embodiments of the present disclosure may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of users Equipment (User Equipment, UE), mobile station (Mobilestation, MS), terminal (terminal), terminal equipment (Terminal Equipment), etc.
  • UE User Equipment
  • MS mobile station
  • terminal terminal equipment
  • Terminal Equipment Terminal Equipment
  • the user equipment when determining transmission resources, the user equipment (User Equipment, UE) first performs resource exclusion to determine the candidate resource set.
  • the unlicensed direct link Sidelink-Unlicense, SL-U
  • the Channel Ocuppancy Time (COT) sharing mechanism is introduced.
  • time-frequency resources can be allocated to the UE within the COT. .
  • how the UE determines transmission resources has become an urgent problem that needs to be solved.
  • the present disclosure proposes a resource selection method and device, which enables the UE to select transmission resources under the COT sharing mechanism, ensuring the reliability of the UE using the transmission resources to transmit data, and effectively avoiding the COT initiating the UE to communicate with another party. Failure of the COT sharing mechanism between UEs.
  • Figure 2 shows a schematic flowchart of a resource selection method according to an embodiment of the present disclosure. As shown in Figure 2, the method may include the following steps.
  • the first UE receives COT sharing information from the second UE.
  • the second UE refers to the COT initiating UE.
  • the COT initiating UE can send COT sharing information to other UEs, and the COT sharing information can carry relevant information for the COT shared by the COT initiating UE and other UEs.
  • COT initiated UE can use CAT1LBT to initiate a COT and send COT sharing information.
  • the first UE determines whether the first UE can share the COT indicated by the COT sharing information according to at least one of the COT sharing information and the preset threshold.
  • the first UE may determine whether the first UE can share the COT indicated by the COT sharing information according to the COT sharing information and/or the preset threshold.
  • the COT sharing information sent by the second UE may carry the identity of the UE with which the second UE desires to share resources. For example, if the second UE desires to share resources with the first UE, the second UE may carry the identity of the first UE in the COT sharing information sent. In this way, after receiving the COT sharing information, the first UE may use the COT sharing information to share resources with the first UE. The carried identity of the first UE determines that the COT indicated by the COT sharing information is shared by the second UE and the first UE.
  • the first UE may determine that the COT indicated by the COT sharing information is shared by the second UE and the third UE. Shared by three UEs.
  • the first UE may determine whether the first UE can share the COT indicated by the COT sharing information according to a preset threshold.
  • the preset thresholds may include reference signal receiving power (RSRP) thresholds, distance thresholds, etc.
  • RSRP reference signal receiving power
  • S203 The first UE determines the candidate resource set located in the resource selection window in the time domain through resource sensing.
  • the first UE may determine the candidate resource set through resource awareness according to related technologies, for example, according to the resource selection process in Release 16. Specifically, the resource selection window may be determined first, and then the candidate resource set located in the resource selection window in the time domain may be determined, which will not be described again here.
  • the first UE determines an available resource set from the candidate resource set.
  • the available resource set includes resources in the candidate resource set that are not within the COT in the time domain.
  • the first UE may exclude resources located in the COT in the time domain from the candidate resource set to obtain an available resource set.
  • the first UE selects resources in the available resource set as transmission resources of the first UE.
  • the first UE may select resources from the available resource set as transmission resources for transmitting data.
  • the first UE receives COT sharing information from the second UE, determines whether the first UE can share the COT indicated by the COT sharing information according to the COT sharing information, and determines the resource selection location in the time domain through resource sensing.
  • the candidate resource set in the window when it is determined that the first UE cannot share the COT, determines the available resource set from the candidate resource set, and selects the resources in the available resource set as the transmission resources of the first UE.
  • the selection method is such that when the first UE cannot share the COT, the transmission resources selected by the first UE are not allocated to other UEs by the second UE through the COT sharing mechanism, thereby effectively avoiding COT between the second UE and other UEs.
  • the failure of the sharing mechanism also ensures the reliability of the first UE using transmission resources to transmit data.
  • Figure 3 shows a schematic flowchart of a resource selection method according to an embodiment of the present disclosure. As shown in Figure 3, the method may include the following steps.
  • the first UE receives COT sharing information from the second UE.
  • the first UE determines whether the first UE can share the COT indicated by the COT sharing information according to at least one of the COT sharing information and the preset threshold.
  • the above step S302 may include the following steps.
  • the first UE determines the UE that can share the COT according to the COT sharing information.
  • the COT sharing information sent by the COT initiating UE may carry the identity of the UE with which the COT initiating UE desires to share resources. For example, if the second UE, which is the COT initiating UE, expects to share resources with the first UE, the second UE may carry the identity of the first UE in the COT sharing information sent. In this way, the first UE receives the COT sharing information. Finally, it can be determined that the resource indicated by the COT sharing information is shared by the second UE and the first UE according to the identity of the first UE carried therein.
  • the first UE may determine that the resource in the COT indicated by the COT sharing information is used by the second UE.
  • the UE is shared with another UE, whereby the first UE may determine that it cannot use the resources within the COT indicated by the COT sharing information because the resources within the COT are allocated to another UE instead of the first UE.
  • step S302 may include the following steps.
  • the first UE determines the UE that can share the COT according to the COT sharing information.
  • the first UE determines whether the reference signal receiving power (RSRP) measurement value of the physical direct link channel corresponding to the COT sharing information is greater than the preset value.
  • RSRP threshold the reference signal receiving power
  • the first UE determines based on the received COT sharing information that the resources within the COT indicated by the COT sharing information are shared by the second UE serving as the COT initiating UE and a third UE other than the first UE. If the first UE is far away from the second UE, even if the first UE uses the resources in the COT indicated by the COT sharing information, it will not cause any harm to the second UE and the third UE using the resources in the COT. interference.
  • the first UE can still use the resources of the COT.
  • the first UE determines whether the COT indicated by the COT sharing information is shared by the second UE and a third UE other than the first UE. , it is also necessary to determine whether the distance between the first UE and the second UE is not far enough, for example, determine whether the distance between the first UE and the second UE is within a certain distance threshold.
  • the first UE may determine whether the RSRP measurement value of the physical direct link channel corresponding to the COT shared information is greater than the RSPR threshold to determine whether the distance between the first UE and the second UE is not far enough. For example, if the first UE determines based on the received COT sharing information that the COT indicated by the COT sharing information is shared by the second UE and a third UE other than the first UE and the physical direct link corresponding to the COT sharing information The RSRP measurement value of the channel is greater than the RSRP threshold, which indicates that the distance between the first UE and the second UE is relatively close.
  • the first UE uses the resources in the COT indicated by the COT sharing information, it will cause harm to the second UE or the third UE.
  • the third UE uses the resources in the COT to cause interference. Therefore, the first UE will determine that it cannot use the resources in the COT.
  • the physical direct link channel can be a physical direct link control channel (Physical Sidelink Control Channel, PSCCH) or a physical direct link shared channel (Physical Sidelink Shared Channel, PSSCH).
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • the first UE may determine whether the first UE can share the COT indicated by the COT sharing information according to the distance threshold. Specifically, the first UE may determine whether the distance between the first UE and the second UE is greater than the distance threshold. When it is greater than the distance threshold, it is determined that the first UE can share the COT indicated by the COT sharing information. When it is not greater than the distance threshold, it is determined that the first UE can share the COT indicated by the COT sharing information. When, it is determined that the first UE cannot share the COT indicated by the COT sharing information.
  • the RSRP threshold or distance threshold can be a predefined or configured fixed value, or it can be a preconfigured multiple indicated by Direct Link Control Information (Sidelink Control Information, SCI) or Downlink Control Information (Downlink Control Information, DCI). one of the values.
  • SCI Direct Link Control Information
  • DCI Downlink Control Information
  • the first UE determines the candidate resource set located in the resource selection window in the time domain through resource sensing.
  • the first UE determines an available resource set from the candidate resource set.
  • the available resource set includes resources in the candidate resource set that are not within the COT in the time domain.
  • S305 The first UE selects resources in the available resource set as transmission resources of the first UE.
  • the first UE receives COT sharing information from the second UE, determines whether the first UE can share the COT indicated by the COT sharing information according to the COT sharing information, and determines the resource selection location in the time domain through resource sensing.
  • the candidate resource set in the window when it is determined that the first UE cannot share the COT, determines the available resource set from the candidate resource set, and selects the resources in the available resource set as the transmission resources of the first UE.
  • the selection method is such that when the first UE cannot share the COT, the transmission resources selected by the first UE are not allocated to other UEs by the second UE through the COT sharing mechanism, thereby effectively avoiding COT between the second UE and other UEs.
  • the failure of the sharing mechanism also ensures the reliability of the first UE using transmission resources to transmit data.
  • Figure 4 shows a schematic flowchart of a resource selection method according to an embodiment of the present disclosure. As shown in Figure 4, the method may include the following steps.
  • the first UE receives COT sharing information from the second UE.
  • the first UE determines whether the first UE can share the COT indicated by the COT sharing information according to at least one of the COT sharing information and the preset threshold.
  • S403 The first UE determines the candidate resource set located in the resource selection window in the time domain through resource sensing.
  • the first UE determines an available resource set from the candidate resource set.
  • the available resource set includes resources in the candidate resource set that are not within the COT in the time domain.
  • the above step S404 may include the following steps.
  • the first UE determines the time window of the COT based on the total length of the COT in the COT shared information.
  • the total length of the COT can be indicated in the COT sharing information.
  • the first UE After receiving the COT sharing information, the first UE can decode and obtain the time slot in which the COT initiating UE sends the COT sharing information, that is, the starting time slot of the COT initiated by the COT initiating UE. For example, as shown in Figure 5, the first UE UE UE1 can determine that the starting time slot in which COT initiates COT is t1. In addition, if the COT sharing information indicates that the total length of the COT is L, then the first UE can determine that the end position of the COT initiated by the COT UE is t1+L, that is, t2 shown in Figure 5. Therefore, the first UE can determine that the time window in which the COT initiates the UE-initiated COT is [t1, t2].
  • S4042 The first UE determines the overlapping time window between the resource selection window and the time window of the COT.
  • the first UE may determine an overlapping time window between the resource selection window and the COT time window.
  • the later time between the start time of the resource selection window and the start time of the COT time window can be determined as the start time of the overlapping time window, and the end time of the COT time window can be determined as the end time of the resource selection window.
  • the earlier time between times is determined as the end time of the overlapping time window.
  • the first UE determines a resource set that is not within the overlapping time window in the time domain from the candidate resource set as an available resource set.
  • the first UE may exclude resources located within the overlapping time window in the time domain from the candidate resource set to obtain an available resource set.
  • S405 The first UE selects resources in the available resource set as transmission resources of the first UE.
  • step S405 For the description and specific details of the above step S405, please refer to the relevant description and details of the above step S305.
  • the first UE receives COT sharing information from the second UE, determines whether the first UE can share the COT indicated by the COT sharing information according to the COT sharing information, and determines the resource selection location in the time domain through resource sensing.
  • the candidate resource set in the window when it is determined that the first UE cannot share the COT, determines the available resource set from the candidate resource set, and selects the resources in the available resource set as the transmission resources of the first UE.
  • the selection method is such that when the first UE cannot share the COT, the transmission resources selected by the first UE are not allocated to other UEs by the second UE through the COT sharing mechanism, thereby effectively avoiding COT between the second UE and other UEs.
  • the failure of the sharing mechanism also ensures the reliability of the first UE using transmission resources to transmit data.
  • Figure 6 shows a schematic flowchart of a resource selection method according to an embodiment of the present disclosure. As shown in Figure 6, the method may include the following steps.
  • S601 The first UE determines a candidate resource set located in the resource selection window in the time domain through resource sensing.
  • the first UE may determine the candidate resource set through resource awareness according to related technologies, for example, according to the resource selection process in Release 16. Specifically, the resource selection window may be determined first, and then the candidate resource set located in the resource selection window in the time domain may be determined, which will not be described again here.
  • S602 The first UE selects the first resource from the candidate resource set.
  • the first UE may select any resource from the candidate resource set as the first resource.
  • the first UE receives COT sharing information from the second UE.
  • the second UE refers to the COT initiating UE.
  • the COT initiating UE can send COT sharing information to other UEs, and the COT sharing information can carry relevant information for the COT shared by the COT initiating UE and other UEs.
  • COT initiated UE can use CAT1LBT to initiate a COT and send COT sharing information.
  • the first UE determines according to the COT sharing information whether the first resource at least partially overlaps with the second resource in the COT indicated by the shared COT sharing information, wherein the second UE allocates the second resource to the third UE through the COT sharing information.
  • the first UE selects the transmission resource of the first UE according to the priority of the first UE's data to be transmitted and the priority of the third UE's data to be transmitted.
  • the first UE may determine according to the COT sharing information whether the first resource selected by the first UE is the same as the second resource allocated to a third UE other than the first UE. Resources at least partially overlap. If the first UE determines that the first resource selected by the first UE is allocated to the second resource of the third UE at least partially overlaps, then the first UE determines the priority of the data to be transmitted by the first UE and the data to be transmitted by the third UE. The priority of the data determines the transmission resources of the first UE.
  • the COT sharing information sent by the second UE as the COT initiating UE may carry the identity of the UE with which the second UE desires to share resources. For example, if the second UE desires to share resources with the first UE, the second UE may carry the identity of the first UE in the COT sharing information sent. In this way, after receiving the COT sharing information, the first UE may use the COT sharing information to share resources with the first UE.
  • the carried identity of the first UE determines that the resources indicated by the COT sharing information are shared by the second UE and the first UE, that is, the second UE allocates part of the resources in the COT to the first UE through the COT sharing information.
  • the first UE may determine that the resources in the COT indicated by the COT sharing information are used by the second UE.
  • the resource selected by the first UE through resource selection is the first resource
  • the first UE determines that the second UE allocates the second resource to the third UE based on the COT sharing information, and at least part of the first resource and the second resource overlap, the first UE can determine the transmission resources of the first UE according to the priority of the data to be transmitted by the first UE and the priority of the data to be transmitted by the third UE.
  • the first UE when it is determined according to the COT sharing information that the first resource selected by the first UE does not coincide with any resource allocated to the third UE other than the first UE, the first UE may use all the resources.
  • the first selected resource is used as the transmission resource.
  • the first UE receives COT shared information from the second UE, determines a candidate resource set located in the resource selection window in the time domain through resource sensing, selects the first resource from the candidate resource set, and selects the first resource according to the COT
  • the sharing information determines whether the first resource at least partially overlaps with the second resource allocated by the second UE to the third UE in the COT indicated by the COT sharing information. When it is determined that the first resource and the second resource at least partially overlap, according to the first UE
  • the priority of the data to be transmitted and the priority of the data to be transmitted of the third UE select the transmission resources of the first UE.
  • the resource selection method of this embodiment when the first UE does not obtain COT sharing before selecting resources
  • resource conflicts between the first UE and the third UE can be avoided, thereby effectively avoiding the third UE.
  • the failure of the COT sharing mechanism between the second UE and the third UE simultaneously ensures the reliability of the first UE using transmission resources to transmit data.
  • Figure 7 shows a schematic flowchart of a resource selection method according to an embodiment of the present disclosure. As shown in Figure 7, the method may include the following steps.
  • S701 The first UE determines a candidate resource set located in the resource selection window in the time domain through resource sensing.
  • S702 The first UE selects the first resource from the candidate resource set.
  • the first UE receives COT sharing information from the second UE.
  • the first UE determines according to the COT sharing information whether the first resource at least partially overlaps with the second resource in the COT indicated by the shared COT sharing information, wherein the second UE allocates the second resource to the third UE through the COT sharing information.
  • the first UE selects the transmission resource of the first UE according to the priority of the first UE's data to be transmitted and the priority of the third UE's data to be transmitted.
  • the above step S705 may include any of the following steps.
  • the first UE selects the first resource as the transmission resource.
  • the first UE determines from the candidate resource set The available resource set and selects resources in the available resource set as transmission resources.
  • the first resource and the second resource at least overlap, if the priority of the first UE to use the first resource to transmit data is less than the priority of the third UE to use the second resource to transmit data and the third UE wants to use the second resource to transmit data,
  • the priority of resource transmission data is greater than the preemption priority threshold, it indicates that the second UE can preempt the second resource. Therefore, the first UE cannot select the first resource as the transmission resource and needs to perform resource reselection.
  • the first UE may exclude resources located within the COT in the time domain from the candidate resource set to obtain an available resource set and select resources in the available resource set as transmission resources.
  • the candidate resource set is determined by the first UE through resource sensing before resource selection is triggered.
  • the candidate resource set may be determined by the first UE according to the resource selection process in Release 16. For the specific process, please refer to the relevant description of Release 16, which will not be described again here.
  • the resource r1 selected by the first UE UE1 through resource selection is r1.
  • the first UE determines that the resource r1 is in the COT and the resource in the COT initiated by the COT initiating UE is Shared to the third UE UE3 other than the first UE, and the COT initiates the UE to allocate resources to UE3, UE3 will share the resource r3 in the cot, and resource r1 and resource r3 have resource overlap (partial overlap or full overlap) , then UE1 needs to determine the transmission resources of UE1 based on the priority of UE1's data to be transmitted and the priority of UE3's data to be transmitted.
  • UE1 If the priority of UE1's data to be transmitted is greater than or equal to the priority of UE3's data to be transmitted, UE1 will use r1, and UE3 cannot use r3 allocated by the COT.
  • UE3 preempts UE1's resource r1, and UE1 needs to obtain resources from the candidate resource set. Reselect to determine transmission resources.
  • UE1 excludes resources located within the COT initiated by the COT initiating UE in the time domain from the candidate resource set to obtain an available resource set, and selects transmission resources from the available resource set, thereby avoiding the need to re-select resources that are inconsistent with the COT.
  • the resources allocated to UE3 overlap.
  • the first UE receives COT shared information from the second UE, determines a candidate resource set located in the resource selection window in the time domain through resource sensing, selects the first resource from the candidate resource set, and selects the first resource according to the COT
  • the sharing information determines whether the first resource at least partially overlaps with the second resource allocated by the second UE to the third UE in the COT indicated by the COT sharing information. When it is determined that the first resource and the second resource at least partially overlap, according to the first UE
  • the priority of the data to be transmitted and the priority of the data to be transmitted of the third UE select the transmission resources of the first UE.
  • the resource selection method of this embodiment when the first UE does not obtain COT sharing before selecting resources
  • resource conflicts between the first UE and the third UE can be avoided, thereby effectively avoiding the third UE.
  • the failure of the COT sharing mechanism between the second UE and the third UE simultaneously ensures the reliability of the first UE using transmission resources to transmit data.
  • Figure 9 shows a schematic flowchart of a resource selection method according to an embodiment of the present disclosure. As shown in Figure 9, the method may include the following steps.
  • S901 The first UE determines a candidate resource set located in the resource selection window in the time domain through resource sensing.
  • S902 The first UE selects the first resource from the candidate resource set.
  • the first UE receives COT sharing information from the second UE.
  • the first UE determines according to the COT sharing information whether the first resource at least partially overlaps with the second resource in the COT indicated by the shared COT sharing information, wherein the second UE allocates the second resource to the third UE through the COT sharing information.
  • the priority of the first UE's data to be transmitted is less than the priority of the third UE's data to be transmitted, and the priority of the third UE's data to be transmitted is greater than the preemption priority.
  • level threshold the first UE determines an available resource set from the candidate resource set, and the available resource set includes resources in the candidate resource set that are not within the COT in the time domain.
  • the above step S905 may include the following steps.
  • the first UE determines the time window of the COT based on the total length of the COT in the COT shared information.
  • the total length of the COT can be indicated in the COT sharing information.
  • the first UE After receiving the COT sharing information, the first UE can decode and obtain the time slot in which the COT initiating UE sends the COT sharing information, that is, the starting time slot of the COT initiated by the COT initiating UE. For example, as shown in Figure 5, the first UE UE UE1 can determine that the starting time slot in which COT initiates COT is t1. In addition, if the COT sharing information indicates that the total length of the COT is L, then the first UE can determine that the end position of the COT initiated by the COT initiated by the UE is t1+L, that is, t2 shown in Figure 5. Therefore, the first UE can determine that the time window in which the COT initiates the UE-initiated COT is [t1, t2].
  • the first UE determines the overlapping time window between the resource selection window and the time window of the COT.
  • the first UE may determine an overlapping time window between the resource selection window and the COT time window.
  • the later time between the start time of the resource selection window and the start time of the COT time window can be determined as the start time of the overlapping time window, and the end time of the COT time window can be determined as the end time of the resource selection window.
  • the earlier time between times is determined as the end time of the overlapping time window.
  • the first UE determines a resource set that is not within the overlapping time window in the time domain from the candidate resource set as an available resource set.
  • the first UE may exclude resources located within the overlapping time window in the time domain from the candidate resource set to obtain an available resource set.
  • S906 The first UE selects resources in the available resource set as transmission resources.
  • the first UE receives COT shared information from the second UE, determines a candidate resource set located in the resource selection window in the time domain through resource sensing, selects the first resource from the candidate resource set, and selects the first resource according to the COT
  • the sharing information determines whether the first resource at least partially overlaps with the second resource allocated by the second UE to the third UE in the COT indicated by the COT sharing information. When it is determined that the first resource and the second resource at least partially overlap, according to the first UE
  • the priority of the data to be transmitted and the priority of the data to be transmitted of the third UE select the transmission resources of the first UE.
  • the resource selection method of this embodiment when the first UE does not obtain COT sharing before selecting resources
  • resource conflicts between the first UE and the third UE can be avoided, thereby effectively avoiding the third UE.
  • the failure of the COT sharing mechanism between the second UE and the third UE simultaneously ensures the reliability of the first UE using transmission resources to transmit data.
  • the methods provided by the embodiments of the present application are introduced from the perspective of user equipment.
  • the user equipment may include a hardware structure and a software module to implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a certain function among the above functions can be executed by a hardware structure, a software module, or a hardware structure plus a software module.
  • the present disclosure also provides a resource selection device. Since the resource selection device provided by the embodiments of the present disclosure corresponds to the resource selection methods provided by the above-mentioned embodiments, the resource selection device The implementation of the selection method is also applicable to the resource selection device provided in this embodiment, and will not be described in detail in this embodiment.
  • FIG. 10 is a schematic structural diagram of a resource selection device 1000 provided by an embodiment of the present disclosure.
  • the resource selection device 1000 may be a first UE.
  • the device 1000 may include a processing module 1001 and a transceiver module 1002.
  • the transceiver module 1002 is configured to receive channel occupancy time COT shared information from the second UE.
  • the processing module 1001 is configured to determine whether the resource selection device can share the COT indicated by the COT sharing information according to at least one of the COT sharing information and a preset threshold; determine through resource awareness that the resource selection device located in the resource selection window in the time domain Candidate resource set; when it is determined that the resource selection device cannot share the COT according to the COT sharing information, determine an available resource set from the candidate resource set, wherein the available resource set includes the time domain of the candidate resource set resources that are not within the COT; and select resources in the available resource set as transmission resources of the resource selection device.
  • the first UE receives COT sharing information from the second UE, determines whether the first UE can share the COT indicated by the COT sharing information according to the COT sharing information, and determines the resource selection location in the time domain through resource sensing.
  • the candidate resource set in the window when it is determined that the first UE cannot share the COT, determines the available resource set from the candidate resource set, and selects the resources in the available resource set as the transmission resources of the first UE.
  • the selection device when the first UE cannot share the COT, prevents the transmission resources selected by the first UE from being allocated by the second UE to other UEs through the COT sharing mechanism, thereby effectively avoiding COT between the second UE and other UEs.
  • the failure of the sharing mechanism also ensures the reliability of the first UE using transmission resources to transmit data.
  • the processing module 1001 is further configured to: determine the UE capable of sharing the COT according to the COT sharing information; and when the UE capable of sharing the COT does not include the resource selection device, determine the UE capable of sharing the COT.
  • the resource selection device cannot share the COT indicated by the COT sharing information.
  • the processing module 1001 is further configured to: determine the UE that can share the COT according to the COT sharing information; when the UE that can share the COT does not include the resource selection device, determine the Whether the reference signal received power RSRP measurement value of the physical direct link channel corresponding to the COT sharing information is greater than the preset RSRP threshold; and when the RSRP measurement value is greater than the preset RSRP threshold, determine that the resource selection device cannot share The COT indicated by the COT sharing information.
  • the processing module 1001 is further configured to: determine the time window of the COT according to the total length of the COT in the COT shared information; determine the time window between the resource selection window and the time window of the COT. overlapping time windows; and determining a resource set that is not within the overlapping time window in the time domain from the candidate resource set as the available resource set.
  • the processing module 1001 is further configured to: determine the later time between the starting time of the resource selection window and the starting time of the COT time window as the overlapping time window. Starting time, the earlier time between the end time of the time window of the COT and the end time of the resource selection window is determined as the end time of the overlapping time window.
  • FIG. 11 is a schematic structural diagram of a resource selection device 1100 provided by an embodiment of the present disclosure.
  • the resource selection device 1100 may be a first UE.
  • the device 1100 may include a processing module 1101 and a transceiver module 1102.
  • the transceiver module 1102 is configured to receive channel occupancy time COT shared information from the second UE.
  • the processing module 1101 is configured to determine a candidate resource set in the resource selection window in the time domain through resource awareness; select a first resource from the candidate resource set; and determine whether the first resource is consistent with the COT according to the COT sharing information.
  • the second resources in the COT indicated by the sharing information at least partially overlap, wherein the second UE allocates the second resource to the third UE through the COT sharing information; when it is determined that the first resource and the third UE
  • the transmission resource of the first UE is selected according to the priority of the data to be transmitted by the first UE and the priority of the data to be transmitted by the third UE.
  • the first UE receives COT sharing information from the second UE, determines the candidate resource set located in the resource selection window in the time domain through resource sensing, selects the first resource from the candidate resource set, and shares the COT according to the COT
  • the information determines whether the first resource at least partially overlaps with the second resource allocated by the second UE to the third UE in the COT indicated by the COT sharing information.
  • the priority of the data to be transmitted and the priority of the data to be transmitted of the third UE select the transmission resources of the first UE.
  • the resource selection device of this embodiment when the first UE does not obtain the COT shared information before selecting the resource
  • the transmission resources selected by the first UE and the resources allocated by the second UE to the third UE through the COT sharing mechanism at least partially overlap, resource conflicts between the first UE and the third UE can be avoided, thereby effectively avoiding the second
  • the failure of the COT sharing mechanism between the UE and the third UE simultaneously ensures the reliability of the first UE using transmission resources to transmit data.
  • the processing module 1101 is further configured to: when the priority of the data to be transmitted by the first UE is greater than the priority of the data to be transmitted by the third UE, select the first resource as the The transmission resources.
  • the processing module 1101 is also configured to: when the priority of the data to be transmitted by the first UE is less than the priority of the data to be transmitted by the third UE, and the data to be transmitted by the third UE is When the priority of the transmission data is greater than the preemption priority threshold, determine an available resource set from the candidate resource set, where the available resource set includes resources that are not within the COT in the time domain of the candidate resource set; and select the available resource set The resources in the resource set serve as the transmission resources.
  • the processing module 1101 is further configured to: determine the time window of the COT according to the total length of the COT in the COT shared information; determine the time window between the resource selection window and the time window of the COT. overlapping time windows; and determining a resource set that is not within the overlapping time window in the time domain from the candidate resource set as the available resource set.
  • the processing module 1101 is further configured to: determine the later time between the starting time of the resource selection window and the starting time of the COT time window as the overlapping time window. Starting time, the earlier time between the end time of the time window of the COT and the end time of the resource selection window is determined as the end time of the overlapping time window.
  • An embodiment of the present disclosure also provides a communication system, including a first UE and a second UE.
  • the second UE is configured to send COT sharing information to allocate resources within the COT indicated by the COT sharing information to the third UE through the COT sharing information.
  • the first UE is configured to perform the resource selection method as described above with reference to Figures 2-5.
  • An embodiment of the present disclosure also provides a communication system, including a first UE, a second UE and a third UE.
  • the second UE sends the COT sharing information to allocate resources within the COT indicated by the COT sharing information to the third UE through the COT sharing information.
  • the first UE is configured to perform the resource selection method as described above with reference to Figures 6-9.
  • FIG 12 is a schematic structural diagram of a communication device 1200 provided by an embodiment of the present application.
  • the communication device 1200 may be a network device, a user equipment, a chip, a chip system, or a processor that supports network equipment to implement the above method, or a chip, a chip system, or a processor that supports user equipment to implement the above method. Processor etc.
  • the device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
  • Communication device 1200 may include one or more processors 1201.
  • the processor 1201 may be a general-purpose processor or a special-purpose processor, or the like.
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data.
  • the central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.
  • the communication device 1200 may also include one or more memories 1202, on which a computer program 1204 may be stored.
  • the processor 1201 executes the computer program 1204, so that the communication device 1200 performs the steps described in the above method embodiments. method.
  • the memory 1202 may also store data.
  • the communication device 1200 and the memory 1202 can be provided separately or integrated together.
  • the communication device 1200 may also include a transceiver 1205 and an antenna 1206.
  • the transceiver 1205 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 1205 may include a receiver and a transmitter.
  • the receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function;
  • the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
  • the communication device 1200 may also include one or more interface circuits 1207.
  • the interface circuit 1207 is used to receive code instructions and transmit them to the processor 1201 .
  • the processor 1201 executes the code instructions to cause the communication device 1200 to perform the method described in the above method embodiment.
  • the processor 1201 may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
  • the processor 1201 may store a computer program 1203, and the computer program 1203 runs on the processor 1201, causing the communication device 1200 to perform the method described in the above method embodiment.
  • the computer program 1203 may be solidified in the processor 1201, in which case the processor 1201 may be implemented by hardware.
  • the communication device 1200 may include a circuit, which may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
  • the processor and transceiver described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc.
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS n-type metal oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be network equipment or user equipment, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited by FIG. 12 .
  • the communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • the IC collection may also include storage components for storing data and computer programs;
  • the communication device may be a chip or a chip system
  • the schematic structural diagram of the chip shown in FIG. 13 refer to the schematic structural diagram of the chip shown in FIG. 13 .
  • the chip shown in Figure 13 includes a processor 1301 and an interface 1302.
  • the number of processors 1301 may be one or more, and the number of interfaces 1302 may be multiple.
  • the chip also includes a memory 1303, which is used to store necessary computer programs and data.
  • This application also provides a readable storage medium on which instructions are stored. When the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.
  • This application also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer programs.
  • the computer program When the computer program is loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated.
  • the usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.
  • magnetic media e.g., floppy disks, hard disks, magnetic tapes
  • optical media e.g., high-density digital video discs (DVD)
  • DVD digital video discs
  • semiconductor media e.g., solid state disks, SSD
  • At least one in this application can also be described as one or more, and the plurality can be two, three, four or more, which is not limited by this application.
  • the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc.
  • the technical features described in “first”, “second”, “third”, “A”, “B”, “C” and “D” are in no particular order or order.
  • machine-readable medium and “computer-readable medium” refer to any computer program product, apparatus, and/or means for providing machine instructions and/or data to a programmable processor (for example, magnetic disks, optical disks, memories, programmable logic devices (PLD)), including machine-readable media that receive machine instructions as machine-readable signals.
  • machine-readable signal refers to any signal used to provide machine instructions and/or data to a programmable processor.
  • the systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., A user's computer having a graphical user interface or web browser through which the user can interact with implementations of the systems and technologies described herein), or including such backend components, middleware components, or any combination of front-end components in a computing system.
  • the components of the system may be interconnected by any form or medium of digital data communication (eg, a communications network). Examples of communication networks include: local area network (LAN), wide area network (WAN), and the Internet.
  • Computer systems may include clients and servers.
  • Clients and servers are generally remote from each other and typically interact over a communications network.
  • the relationship of client and server is created by computer programs running on corresponding computers and having a client-server relationship with each other.

Abstract

本公开提出了一种资源选择方法及装置，涉及通信领域，根据本公开的方法，第一UE从第二UE接收COT共享信息，根据COT共享信息确定第一UE是否能够共享COT共享信息指示的COT，通过资源感知确定时域上位于资源选择窗口中的候选资源集，当确定第一UE不能共享COT时，从候选资源集中确定可用资源集合，选择可用资源集合中的资源作为第一UE的传输资源，由此，提供了一种在COT共享机制下选择传输资源的技术方案，第一UE所选中的传输资源并非COT发起UE通过COT共享机制分配给其他UE的资源，从而有效地避免了COT发起UE与其他UE之间的COT共享机制的失败，同时确保了第一UE的数据传输可靠性。

Description

资源选择方法及装置 技术领域
本公开涉及移动通信技术领域，特别涉及一种资源选择方法及装置。
背景技术
在目前的直连链路(sidelink，SL，也叫侧行链路)中，用户设备(User Equipment，UE)在确定传输资源时，首先进行资源排除确定候选资源集。但在非授权直连链路中(Sidelink-Unlicense，SL-U)中，引入了信道占用时间(Channel Ocuppancy Time，COT)共享机制，根据COT共享机制，可以在COT内为UE分配时频资源。在COT共享机制下，UE如何确定选择资源成为目前亟待解决的问题。
发明内容
本公开提出了一种资源选择方法及装置，使得UE可以在COT共享机制下选择传输资源，确保了UE使用传输资源传输数据的可靠性，同时有效地避免了COT发起UE与另一UE之间的COT共享机制的失败。
本公开的第一方面实施例提供了一种资源选择方法，由第一UE执行，所述方法包括：从第二UE接收信道占用时间(Channel Ocuppancy Time，COT)共享信息；根据所述COT共享信息与预设阈值中的至少一个确定所述第一UE能否共享所述COT共享信息指示的COT；通过资源感知确定时域上位于资源选择窗口中的候选资源集；当根据所述COT共享信息确定所述第一UE不能共享所述COT时，从所述候选资源集中确定可用资源集合，其中所述可用资源集合包括所述候选资源集中的时域上不在所述COT内的资源；以及选择所述可用资源集合中的资源作为所述第一UE的传输资源。
可选地，所述根据所述COT共享信息与预设阈值中的至少一个确定所述第一UE能否共享所述COT共享信息指示的COT包括：根据所述COT共享信息确定能够共享所述COT的UE；以及当能够共享所述COT的UE不包括所述第一UE时，确定所述第一UE不能共享所述COT共享信息指示的COT。
可选地，所述根据所述COT共享信息与预设阈值中的至少一个确定所述第一UE能否共享所述COT共享信息指示的COT包括：根据所述COT共享信息确定能够共享所述COT的UE；当能够共享所述COT的UE不包括所述第一UE时，确定所述COT共享信息对应的物理直连链路信道的参考信号接收功率RSRP测量值是否大于预设RSRP阈值；以及当所述RSRP测量值大于所述预设RSRP阈值时，确定所述第一UE不能共享所述COT共享信息指示的COT。
可选地，所述从候选资源集中确定可用资源集合包括：根据所述COT共享信息中的COT总长度确定所述COT的时间窗口；确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口；以及从所候选资源集中确定时域上不在所述重叠时间窗口内的资源集合作为所述可用资源集合。
可选地，所述确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口包括：将所述资源选择窗口的起始时间与所述COT的时间窗口的起始时间之间的较晚时间确定为所述重叠时间窗口的起始时间，将所述COT的时间窗口的终止时间与所述资源选择窗口的终止时间之间的较早时间确定为所述重叠时间窗口的终止时间。
本公开的第二方面实施例提供了一种资源选择方法，所述方法由第一UE执行，包括通过资源感知确定时域上在资源选择窗口中的候选资源集；从所述候选资源集中选择第一资源；从第二UE接收COT共享信息；根据所述COT共享信息确定所述第一资源是否与所述COT共享信息指示的COT内的第二资源至少部分重合，其中，所述第二UE通过所述COT共享信息将所述第二资源分配给第三UE；当确定所述第一资源与所述第二资源至少部分重合时，根据所述第一UE的待传输数据的优先级与所述第三UE的待传输数据的优先级选择所述第一UE的传输资源。
可选地，所述根据所述第一UE的待传输数据的优先级与所述第三UE的待传输数据的优先级选择所述第一UE的传输资源包括：当所述第一UE的待传输数据的优先级大于所述第三UE的待传输数据的优先级时，选择所述第一资源作为所述传输资源。
可选地，所述根据所述第一UE的待传输数据的优先级与所述第三UE的待传输数据的优先级选择所述第一UE的传输资源包括：当所述第一UE的待传输数据的优先级小于所述第三UE的待传输数据的优先级，且所述第三UE的待传输数据的优先级大于抢占优先级阈值时，从候选资源集中确定可用资源集合，其中所述可用资源集合包括所述候选资源集中的时域上不在所述COT内的资源；以及选择所述可用资源集合中的资源作为所述传输资源。
可选地，所述从候选资源集中确定可用资源集合包括：根据所述COT共享信息中的COT总长度确定所述COT的时间窗口；确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口；以及从所候选资源集中确定时域上不在所述重叠时间窗口内的资源集合作为所述可用资源集合。
可选地，所述确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口包括：将所述资源选择窗口的起始时间与所述COT的时间窗口的起始时间之间的较晚时间确定为所述重叠时间窗口的起始时间，将所述COT的时间窗口的终止时间与所述资源选择窗口的终止时间之间的较早时间确定为所述重叠时间窗口的终止时间。
本公开的第三方面实施例提供了一种资源选择装置，所述装置包括：收发模块，用于从第二UE接收信道占用时间COT共享信息；以及处理模块，用于根据所述COT共享信息与预设阈值中的至少一个确定所述资源选择装置能否共享所述COT共享信息指示的COT；通过资源感知确定时域上位于资源选择窗口中的候选资源集；当根据所述COT共享信息确定所述资源选择装置不能共享所述COT时，从所述候选资源集中确定可用资源集合，其中所述可用资源集合包括所述候选资源集中的时域上不在所述COT内的资源；以及选择所述可用资源集合中的资源作为所述资源选择装置的传输资源。
可选地，所述处理模块还用于：根据所述COT共享信息确定能够共享所述COT的UE；以及当能够共享所述COT的UE不包括所述资源选择装置时，确定所述资源选择装置不能共享所述COT共享信息指示的COT。
可选地，所述处理模块还用于：根据所述COT共享信息确定能够共享所述COT的UE；当能够共享所述COT的UE不包括所述资源选择装置时，确定所述COT共享信息对应的物理直连链路信道的参考信号接收功率RSRP测量值是否大于预设RSRP阈值；以及当所述RSRP测量值大于所述预设RSRP阈值时，确定所述资源选择装置不能共享所述COT共享信息指示的COT。
可选地，所述处理模块还用于：根据所述COT共享信息中的COT总长度确定所述COT的时间窗口；确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口；以及从所候选资源集中确定时域上不在所述重叠时间窗口内的资源集合作为所述可用资源集合。
可选地，所述处理模块还用于：将所述资源选择窗口的起始时间与所述COT的时间窗口的起始时间之间的较晚时间确定为所述重叠时间窗口的起始时间，或者将所述COT的时间窗口的终止时间与所述资源选择窗口的终止时间之间的较早时间确定为所述重叠时间窗口的终止时间。
本公开的第四方面实施例提供了一种资源选择装置，所述装置包括：收发模块，用于从第二UE接收信道占用时间COT共享信息；以及处理模块，用于通过资源感知确定时域上在资源选择窗口中的候选资源集；从所述候选资源集中选择第一资源；根据所述COT共享信息确定所述第一资源是否与所述COT共享信息指示的COT内的第二资源至少部分重合，其中，所述第二UE通过所述COT共享信息将所述第二资源分配给第三UE；当确定所述第一资源与所述第二资源至少部分重合时，根据所述第一UE的待传输数据的优先级与所述第三UE的待传输数据的优先级选择所述第一UE的传输资源。
可选地，所述处理模块还用于：当所述第一UE的待传输数据的优先级大于所述第三UE的待传输数据的优先级时，选择所述第一资源作为所述传输资源。
可选地，所述处理模块还用于：当所述第一UE的待传输数据的优先级小于所述第三UE的待传输数据的优先级，且所述第三UE的待传输数据的优先级大于抢占优先级阈值时，从候选资源集中确定可用资源集合，其中所述可用资源集合包括所述候选资源集中的时域上不在所述COT内的资源；以及选择所述可用资源集合中的资源作为所述传输资源。
可选地，所述处理模块还用于：根据所述COT共享信息中的COT总长度确定所述COT的时间窗口；确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口；以及从所候选资源集中确定时域上不在所述重叠时间窗口内的资源集合作为所述可用资源集合。
可选地，所述处理模块还用于：将所述资源选择窗口的起始时间与所述COT的时间窗口的起始时间之间的较晚时间确定为所述重叠时间窗口的起始时间，或者将所述COT的时间窗口的终止时间与所述资源选择窗口的终止时间之间的较早时间确定为所述重叠时间窗口的终止时间。
本公开的第五方面实施例提供了一种通信设备，包括：收发器；存储器；处理器，分别与所述收发器及所述存储器连接，配置为通过执行所述存储器上的计算机可执行指令，控制所述收发器的无线信号收发，并能够实现上述第一方面或第二方面实施例的资源选择方法。
本公开的第六方面实施例提供了一种通信系统，包括第一UE和第二UE，其中第一UE用于执行上述第一方面实施例的资源选择方法。
本公开的第七方面实施例提供了一种通信系统，包括第一UE、第二UE和第三UE，其中第一UE用于执行上述第二方面实施例的资源选择方法。
本公开的第八方面实施例提出了一种计算机存储介质，其中，所述计算机存储介质存储有计算机可执行指令；所述计算机可执行指令被处理器执行后，能够实现上述第一方面或第二方面实施例的资源选择方法。
本公开实施例提供了一种资源选择方法及装置，第一UE从第二UE接收COT共享信息，根据COT共享信息确定第一UE是否能够共享COT共享信息指示的COT，通过资源感知确定时域上位于资源选择窗口中的候选资源集，当确定第一UE不能共享COT时，从候选资源集中确定可用资源集合，选择可用资源集合中的资源作为第一UE的传输资源，由此，根据本公开的资源选择方法及装置，当第一UE不能共享COT时，使得第一UE选择的传输资源并未被第二UE通过COT共享机制分配给其他UE，从而有效地避免了第二UE与其他UE之间的COT共享机制的失败，同时确保了第一UE使用传输资源传输数据的可靠性。
本公开实施例还提供了一种资源选择方法及装置，第一UE从第二UE接收COT共享信息，通过资源感知确定时域上位于资源选择窗口中的候选资源集，从候选资源集中选择第一资源，根据COT共享信息确定第一资源是否与COT共享信息指示的COT内被第二UE分配给第三UE的第二资源至少部分重合，当确定第一资源与第二资源至少部分重合时，根据第一UE的待传输数据的优先级与第三UE的待传输数据的优先级选择第一UE的传输资源，由此，根据本公开的资源选择方法及装置，当第一UE在选择资源之前未获得COT共享信息而导致第一UE所选中的传输资源与第二UE通过COT共享机制分配给第三UE的资源至少部分重合时，可以避免第一UE与第三UE发生资源冲突，从而有效地避免了第二UE与第三UE之间的COT共享机制的失败，同时确保了第一UE使用传输资源传输数据的可靠性。
本公开附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1为根据本公开实施例的一种通信系统的架构示意图；
图2为根据本公开实施例的一种资源选择方法的流程示意图；
图3为根据本公开实施例的一种资源选择方法的流程示意图；
图4为根据本公开实施例的一种资源选择方法的流程示意图；
图5为根据本公开实施例的一种资源选择方法的示意图；
图6为根据本公开实施例的一种资源选择方法的流程示意图；
图7为根据本公开实施例的一种资源选择方法的流程示意图；
图8为根据本公开实施例的一种资源选择方法的流程示意图；
图9为根据本公开实施例的一种资源选择方法的示意图；
图10为根据本公开实施例的一种资源选择装置的框图；
图11为根据本公开实施例的一种资源选择装置的框图；
图12为本公开实施例提供的一种通信装置的结构示意图；
图13为本公开实施例提供的一种芯片的结构示意图。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本公开，而不能理解为对本公开的限制。
为了更好的理解本申请实施例公开的资源选择方法及装置，下面首先对本申请实施例适用的通信系统进行描述。
请参见图1，直连通信设备之间进行直连通信的场景中，网络设备为直连通信设备1配置各种用于数据传输的传输参数。直连通信设备1作为数据发送端，直连通信设备2作为数据接收端，二者进行直接通信。网络设备与直连通信设备之间进行通信的链路为上下行链路，直连通信设备与直连通信设备之间的链路是直连链路。
可以理解的是，图1所示的无线通信系统仅是进行示意性说明，无线通信系统中还可包括其它网络设备，例如还可以包括核心网设备、无线中继设备和无线回传设备等，在图1中未画出。本公开实施例对该无线通信系统中包括的网络设备数目和终端数目不做限定。
进一步可以理解的是，本公开实施例的无线通信系统，是一种提供无线通信功能的网络。无线通信系统可以采用不同的通信技术，例如码分多址(code division multipleaccess,CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multipleaccess，FDMA)、正交频分多址(orthogonal frequency-division multiple access，OFDMA)、单载波频分多址(single Carrier FDMA，SC-FDMA)、载波侦听多路访问/冲突避免(Carrier Sense Multiple Access with Collision Avoidance)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：generation)网络、3G网络、4G网络或者未来演进网络，如5G网络，5G网络也可称为是新无线网络(New Radio，NR)。为了方便描述，本公开有时会将无线通信网络简称为网络。
进一步的，本公开中涉及的网络设备也可以称为无线接入网设备。该无线接入网设备可以是：基站、演进型基站(evolved node B，eNB)、家庭基站、无线保真(wirelessfidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为NR系统中的gNB，或者，还可以是构成基站的组件或一部分设备等。当为车联网(V2X)通信系统时，网络设备还可以是车载设备。应理解，本公开的实施例中，对网络设备所采用的具体技术和具体设备形态不做限定。
进一步的，本公开中涉及的终端，也可以称为终端设备、用户设备(UserEquipment，UE)、移动台(Mobile Station，MS)、移动终端(Mobile Terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，终端可以是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：智能手机(Mobile Phone)、口袋计算机(PocketPersonal Computer，PPC)、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、笔记本电脑、平板电脑、可穿戴设备、或者车载设备等。此外，当为车联网(V2X)通信系统时，终端设备还可以是车载设备。应理解，本公开实施例对终端所采用的具体技术和具体设备形态不做限定。
本公开中，直连通信设备之间直接通信的通信场景也可以是终端到终端(Deviceto Device，D2D)的通信场景。本公开实施例中进行直接通信的直连通信设备可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备，以及各种形式的用户设备(User Equipment，UE)，移动台(Mobilestation，MS)，终端(terminal)，终端设备(Terminal Equipment)等等。为方便描述，本公开实施例以下以直连通信设备为终端为例进行说明。
可以理解的是，本申请实施例描述的通信系统是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
在目前的直连链路中，用户设备(User Equipment，UE)在确定传输资源时，首先进行资源排除确定候选资源集。但在非授权直连链路中(Sidelink-Unlicense，SL-U)中，引入了信道占用时间(Channel Ocuppancy Time，COT)共享机制，根据COT共享机制，可以在COT内为UE分配时频资源。在COT共享机制下，UE如何确定传输资源成为目前亟待解决的问题。
为此，本公开提出了一种资源选择方法及装置，使得UE可以在COT共享机制下选择传输资源，确保了UE使用传输资源传输数据的可靠性，同时有效地避免了COT发起UE与另一UE之间的COT共享机制的失败。
下面结合附图对本申请所提供的资源选择方法及装置进行详细地介绍。
图2示出了根据本公开实施例的一种资源选择方法的流程示意图。如图2所示，该方法可以包括以下步骤。
S201，第一UE从第二UE接收COT共享信息。
在本实施例中，第二UE指的是COT发起UE。在COT共享机制下，COT发起UE可以向其他UE发送COT共享信息，该COT共享信息可以携带用于被COT发起UE和其他UE共享的COT的相关信息。
COT发起UE可以使用CAT1LBT发起1个COT，并发送COT共享信息。
S202，第一UE根据COT共享信息与预设阈值中的至少一个确定第一UE是否能够共享COT共享信息指示的COT。
第一UE在接收到该COT共享信息后，可以根据该COT共享信息和/或预设阈值确定第一UE是否能够共享该COT共享信息所指示的COT。
在一些实施方式中，第二UE所发送的COT共享信息中可以携带第二UE期望与其进行资源共享的UE的标识。例如，若第二UE期望与第一UE共享资源，则第二UE可以在发送的COT共享信息中携带第一UE的标识，如此，第一UE在接收到该COT共享信息后，可以根据其中携带的第一UE的标 识确定该COT共享信息所指示的COT被第二UE和第一UE共享。若第一UE接收到的COT共享信息中携带的UE的标识为除第一UE之外的第三UE的标识，则第一UE可以确定该COT共享信息所指示的COT被第二UE和第三UE共享。
在一些实施方式中，第一UE在接收到该COT共享信息后，可以根据预设阈值确定第一UE是否能够共享该COT共享信息所指示的COT。
预设阈值可以包括参考信号接收功率(Reference Signal Receiving Power，RSRP)阈值、距离阈值等。
S203，第一UE通过资源感知确定时域上位于资源选择窗口中的候选资源集。
第一UE可以在按照相关技术通过资源感知确定候选资源集，例如根据Release16中资源选择过程来确定。具体地，可以首先确定资源选择窗口，然后确定时域上位于资源选择窗口中的候选资源集，在此不再赘述。
S204，第一UE在根据COT共享信息确定第一UE不能共享COT时，从候选资源集中确定可用资源集合，可用资源集合包括候选资源集中的时域上不在COT内的资源。
若第一UE确定不能共享该COT，即不能使用该COT内的资源，则第一UE可以从候选资源集中排除时域上位于该COT内的资源以得到可用资源集合。
S205，第一UE选择可用资源集合中的资源作为第一UE的传输资源。
第一UE在确定可用资源集合后，可以从该可用资源集合中选择资源以作为用于传输数据的传输资源。
根据本公开实施例的资源选择方法，第一UE从第二UE接收COT共享信息，根据COT共享信息确定第一UE是否能够共享COT共享信息指示的COT，通过资源感知确定时域上位于资源选择窗口中的候选资源集，当确定第一UE不能共享COT时，从候选资源集中确定可用资源集合，选择可用资源集合中的资源作为第一UE的传输资源，由此，根据本实施例的资源选择方法，当第一UE不能共享COT时，使得第一UE选择的传输资源并未被第二UE通过COT共享机制分配给其他UE，从而有效地避免了第二UE与其他UE之间的COT共享机制的失败，同时确保了第一UE使用传输资源传输数据的可靠性。
图3示出了根据本公开实施例的一种资源选择方法的流程示意图。如图3所示，该方法可以包括以下步骤。
S301，第一UE从第二UE接收COT共享信息。
S302，第一UE根据COT共享信息与预设阈值中的至少一个确定第一UE是否能够共享COT共享信息指示的COT。
关于上述步骤S301-S302的描述和具体细节，可以参考上述步骤S201-S202的相关描述与细节。
在一些实施例中，上述步骤S302可以包括以下步骤。
S3021，第一UE根据所述COT共享信息确定能够共享COT的UE。
S3022，当能够共享COT的UE不包括述第一UE时，第一UE确定第一UE不能共享COT共享信息指示的COT。
在一实施方式中，COT发起UE所发送的COT共享信息中可以携带COT发起UE期望与其进行资源分享的UE的标识。例如，若作为COT发起UE的第二UE期望与第一UE共享资源，则第二UE可以在发送的COT共享信息中携带第一UE的标识，如此，第一UE在接收到该COT共享信息后，可以根据其中携带的第一UE的标识确定该COT共享信息所指示的资源被第二UE和第一UE共享。
若第一UE接收到的COT共享信息中携带的UE的标识为除第一UE之外的另一UE的标识，则第一UE可以确定该COT共享信息所指示的COT内的资源被第二UE和另一UE共享，由此，第一UE可以确定其不能使用该COT共享信息所指示的COT内的资源，因为该COT内的资源被分配给另一UE而非第一UE。
在另一些实施例中，上述步骤S302可以包括以下步骤。
S3023，第一UE根据所述COT共享信息确定能够共享COT的UE。
S3024，当能够共享COT的UE不包括述第一UE时，第一UE确定COT共享信息对应的物理直连链路信道的参考信号接收功率(Reference Signal Receiving Power，RSRP)测量值是否大于预设RSRP阈值。
S3025，当RSRP测量值大于预设RSRP阈值时，第一UE确定第一UE不能共享COT共享信息指示的COT。
在一些情况下，在第一UE根据接收到的COT共享信息确定该COT共享信息所指示的COT内的资源被作为COT发起UE的第二UE和除该第一UE之外的第三UE共享时，若第一UE距第二UE的距离较远，该第一UE即便使用该COT共享信息所指示的COT内的资源也不会对第二UE和第三UE使用该COT内的资源造成干扰。也就是说，若第一UE距第二UE的距离较远，即便第一UE从该第二UE接收到的COT共享信息指示该COT共享信息所指示的COT内的资源被第二UE和除第一UE之外的第三UE共享，该第一UE仍能够使用该COT的资源。在这种情况下，第一UE在确定能否共享COT共享信息所指示的COT时，除了确定该COT共享信息所指示的COT是否被第二UE和除第一UE之外的第三UE共享，还需要确定第一UE距第二UE的距离是否不够远，例如，确定第一UE距第二UE的距离是否在一定距离阈值之内。
在一实施方式中，第一UE可以确定该COT共享信息对应的物理直连链路信道的RSRP测量值是否大于RSPR阈值来确定第一UE距该第二UE的距离是否不够远。例如，若第一UE根据接收到的COT共享信息确定该COT共享信息所指示的COT被第二UE和除该第一UE之外的第三UE共享并且该COT共享信息对应的物理直连链路信道的RSRP测量值大于RSRP阈值，这表明第一UE与第二UE之间的距离较近，若第一UE使用该COT共享信息所指示的COT内的资源将会对第二UE或第三UE使用该COT内的资源造成干扰，因此，第一UE将确定其不能使用该COT内的资源。
其中，物理直连链路信道可以为物理直连链路控制信道(Physical Sidelink Control Channel，PSCCH)或物理直连链路共享信道(Physical Sidelink Shared Channel，PSSCH)。
在另一实施方式中，第一UE可以根据距离阈值确定第一UE是否能够共享该COT共享信息所指示的COT。具体地，第一UE可以确定第一UE与第二UE之间的距离是否大于距离阈值，当大于距离阈值时，确定第一UE能够共享该COT共享信息指示的COT，而当不大于距离阈值时，确定第一UE不能够共享该COT共享信息指示的COT。
RSRP阈值或距离阈值可以为预先定义或配置的固定值，或者可以为由直连链路控制信息(Sidelink Control Information，SCI)或下行控制信息(Downlink Control Information，DCI)指示的预先配置的多个值中的某个值。
S303，第一UE通过资源感知确定时域上位于资源选择窗口中的候选资源集。
S304，第一UE在根据COT共享信息确定第一UE不能共享COT时，从候选资源集中确定可用资源集合，可用资源集合包括候选资源集中的时域上不在COT内的资源。
S305，第一UE选择可用资源集合中的资源作为第一UE的传输资源。
关于上述步骤S303-S303的描述和具体细节，可以参考上述步骤S203-S203的相关描述与细节。
根据本公开实施例的资源选择方法，第一UE从第二UE接收COT共享信息，根据COT共享信息确定第一UE是否能够共享COT共享信息指示的COT，通过资源感知确定时域上位于资源选择窗口中的候选资源集，当确定第一UE不能共享COT时，从候选资源集中确定可用资源集合，选择可用资源集合中的资源作为第一UE的传输资源，由此，根据本实施例的资源选择方法，当第一UE不能共享COT时，使得第一UE选择的传输资源并未被第二UE通过COT共享机制分配给其他UE，从而有效地避免了第二UE与其他UE之间的COT共享机制的失败，同时确保了第一UE使用传输资源传输数据的可靠性。
图4示出了根据本公开实施例的一种资源选择方法的流程示意图。如图4所示，该方法可以包括以下步骤。
S401，第一UE从第二UE接收COT共享信息。
S402，第一UE根据COT共享信息与预设阈值中的至少一个确定第一UE是否能够共享COT共享信息指示的COT。
S403，第一UE通过资源感知确定时域上位于资源选择窗口中的候选资源集。
S404，第一UE在根据COT共享信息确定第一UE不能共享COT时，从候选资源集中确定可用资源集合，可用资源集合包括候选资源集中的时域上不在COT内的资源。
关于上述步骤S401-S404的描述和具体细节，可以参考上述步骤S301-S304的相关描述与细节。
在一些实施例中，上述步骤S404可以包括以下步骤。
S4041，第一UE根据COT共享信息中的COT总长度确定COT的时间窗口。
COT共享信息中可以指示COT总长度。
第一UE在接收到COT共享信息后，可以解码获得COT发起UE发送该COT共享信息所在的时隙，即COT发起UE发起的COT的起始时隙，例如，如图5所示，第一UE UE1可以确定COT发起UE发起COT的起始时隙为t1。此外，COT共享信息中指示COT总长度为L，则第一UE可以确定该 COT发起UE发起的COT的结束位置为t1+L，即图5中所示的t2。由此，第一UE可以确定COT发起UE发起的COT的时间窗口为[t1,t2]。
S4042，第一UE确定资源选择窗口与COT的时间窗口之间的重叠时间窗口。
第一UE在确定COT的时间窗口后，第一UE可以确定资源选择窗口与COT时间窗口之间的重叠时间窗口。
其中，可以将资源选择窗口的起始时间与COT的时间窗口的起始时间之间的较晚时间确定为重叠时间窗口的起始时间，将COT的时间窗口的终止时间与资源选择窗口的终止时间之间的较早时间确定为重叠时间窗口的终止时间。
例如，如图5所示，资源选择窗口为[n+T1,n+T2]，而COT的时间窗口为[t1,t2]，则资源选择窗口与COT的时间窗口之间的重叠时间窗口为[t3,t4]，其中，则t3＝max{t3，n+T1}，由于COT发起UE发起的COT在第一UE执行资源选择之前，即t3＜n+T1，所以，t3＝n+T1，而t4＝min{n+T2,t2}。
S4043，第一UE从候选资源集中确定时域上不在重叠时间窗口内的资源集合作为可用资源集合。
第一UE在确定重叠时间窗口后，第一UE可以从候选资源集中排除时域上位于重叠时间窗口内的资源得到可用资源集合。
例如，如图5所示，候选资源集中时域上位于[t3,t4]内的资源被排除。
S405，第一UE选择可用资源集合中的资源作为第一UE的传输资源。
关于上述步骤S405的描述和具体细节，可以参考上述步骤S305的相关描述与细节。
根据本公开实施例的资源选择方法，第一UE从第二UE接收COT共享信息，根据COT共享信息确定第一UE是否能够共享COT共享信息指示的COT，通过资源感知确定时域上位于资源选择窗口中的候选资源集，当确定第一UE不能共享COT时，从候选资源集中确定可用资源集合，选择可用资源集合中的资源作为第一UE的传输资源，由此，根据本实施例的资源选择方法，当第一UE不能共享COT时，使得第一UE选择的传输资源并未被第二UE通过COT共享机制分配给其他UE，从而有效地避免了第二UE与其他UE之间的COT共享机制的失败，同时确保了第一UE使用传输资源传输数据的可靠性。
图6示出了根据本公开实施例的一种资源选择方法的流程示意图。如图6所示，该方法可以包括以下步骤。
S601，第一UE通过资源感知确定时域上位于资源选择窗口中的候选资源集。
第一UE可以在按照相关技术通过资源感知确定候选资源集，例如根据Release16中资源选择过程来确定。具体地，可以首先确定资源选择窗口，然后确定时域上位于资源选择窗口中的候选资源集，在此不再赘述。
S602，第一UE从候选资源集中选择第一资源。
第一UE在确定候选资源集后，可以从该候选资源集中选择任意资源作为第一资源。
S603，第一UE从第二UE接收COT共享信息。
在本实施例中，第二UE指的是COT发起UE。在COT共享机制下，COT发起UE可以向其他UE发送COT共享信息，该COT共享信息可以携带用于被COT发起UE和其他UE共享的COT的相关信息。
COT发起UE可以使用CAT1LBT发起1个COT，并发送COT共享信息。
S604，第一UE根据COT共享信息确定第一资源是否与共享COT共享信息指示的COT内的第二资源至少部分重合，其中第二UE通过COT共享信息将第二资源分配给第三UE。
S605，当确定第一资源与第二资源至少部分重合时，第一UE根据第一UE的待传输数据的优先级与第三UE的待传输数据的优先级选择第一UE的传输资源。
第一UE接收到COT发起UE发送的COT共享信息后，可以根据该COT共享信息确定该第一UE所选中的第一资源是否与被分配给除第一UE之外的第三UE的第二资源至少部分重合。若第一UE确定第一UE所选中的第一资源被分配给第三UE的第二资源至少部分重合，则第一UE根据第一UE的待传输数据的优先级与第三UE的待传输数据的优先级确定第一UE的传输资源。
在一实施方式中，作为COT发起UE的第二UE所发送的COT共享信息中可以携带第二UE期望与其进行资源分享的UE的标识。例如，若第二UE期望与第一UE共享资源，则第二UE可以在发送的COT共享信息中携带第一UE的标识，如此，第一UE在接收到该COT共享信息后，可以根据其中携带的第一UE的标识确定该COT共享信息所指示的资源被第二UE和第一UE共享，即第二UE通过该COT共享信息将COT内的部分资源分配给第一UE。
若第一UE接收到的COT共享信息中携带的UE的标识为除第一UE之外的第三UE的标识，则第一UE可以确定该COT共享信息所指示的COT内的资源被第二UE和第三UE共享，即第二UE通过该COT共享信息将COT内的部分资源分配给第三UE。例如，第一UE通过资源选择所选中的资源为第一资源，而第一UE根据该COT共享信息确定第二UE将第二资源分配给第三UE，而第一资源和第二资源至少部分重合，则第一UE可以根据第一UE的待传输数据的优先级与第三UE的待传输数据的优先级确定第一UE的传输资源。
在另一些实施例中，当根据COT共享信息确定第一UE所选中的第一资源不与被分配给除第一UE之外的第三UE的任意资源重合时，则第一UE可以使用所选中的第一资源用作传输资源。
根据本公开实施例的资源选择方法，第一UE从第二UE接收COT共享信息，通过资源感知确定时域上位于资源选择窗口中的候选资源集，从候选资源集中选择第一资源，根据COT共享信息确定第一资源是否与COT共享信息指示的COT内被第二UE分配给第三UE的第二资源至少部分重合，当确定第一资源与第二资源至少部分重合时，根据第一UE的待传输数据的优先级与第三UE的待传输数据的优先级选择第一UE的传输资源，由此，根据本实施例的资源选择方法，当第一UE在选择资源之前未获得COT共享信息而导致第一UE所选中的传输资源与第二UE通过COT共享机制分配给第三UE的资源至少部分重合时，可以避免第一UE与第三UE发生资源冲突，从而有效地避免了第二UE与第三UE之间的COT共享机制的失败，同时确保了第一UE使用传输资源传输数据的可靠性。
图7示出了根据本公开实施例的一种资源选择方法的流程示意图。如图7所示，该方法可以包括以下步骤。
S701，第一UE通过资源感知确定时域上位于资源选择窗口中的候选资源集。
S702，第一UE从候选资源集中选择第一资源。
S703，第一UE从第二UE接收COT共享信息。
S704，第一UE根据COT共享信息确定第一资源是否与共享COT共享信息指示的COT内的第二资源至少部分重合，其中第二UE通过COT共享信息将第二资源分配给第三UE。
S705，当确定第一资源与第二资源至少部分重合时，第一UE根据第一UE的待传输数据的优先级与第三UE的待传输数据的优先级选择第一UE的传输资源。
关于上述步骤S701-S705的描述和具体细节，可以参考上述步骤S601-S605的相关描述与细节。
在一些实施例中，上述步骤S705可以包括以下任一步骤。
S7051，当第一UE的待传输数据的优先级大于或等于第三UE的待传输数据的优先级时，第一UE选择第一资源作为传输资源。
在第一资源与第二资源至少重合的情况下，若第一UE待使用第一资源传输数据的优先级大于或等于第三UE待使用第二资源传输数据的优先级，则第三UE不能使用第二资源传输数据，因此，第一UE选择该第一资源作为传输资源。
S7052，当第一UE的待传输数据的优先级小于第三UE的待传输数据的优先级且第三UE的待传输数据的优先级大于抢占优先级阈值时，第一UE从候选资源集中确定可用资源集合并选择可用资源集合中的资源作为传输资源。
在第一资源与第二资源至少重合的情况下，若第一UE待使用第一资源传输数据的优先级小于第三UE待使用第二资源传输数据的优先级且第三UE待使用第二资源传输数据的优先级大于抢占优先级阈值时，则表明第二UE可以抢占该第二资源，因此，第一UE不能选择第一资源作为传输资源，而需要进行资源重选。
第一UE在进行资源重选时，可以从候选资源集中排除时域上位于COT内的资源得到可用资源集合并选择可用资源集合中的资源作为传输资源。其中，其中候选资源集为第一UE在资源选择被触发之前通过资源感知确定的。例如，候选资源集可以是第一UE根据Release16中资源选择过程来确定，具体过程可以参考Release16的相关描述，在此不再赘述。
例如，如图8所示，第一UE UE1通过资源选择所选中的资源为r1，第一UE在接收到COT共享信息后确定该资源r1在COT内而COT发起UE发起的COT内的资源被共享给除第一UE之外的第三UE UE3，且COT发起UE为UE3分配资源，UE3将要共享该cot内的资源r3，而资源r1和资源r3产生了资源重叠(部分重叠或者全部重叠)，则UE1需要根据UE1的待传输数据的优先级与UE3的待传输数据的优先级确定UE1的传输资源。
如果UE1的待传输数据的优先级大于或等于UE3的待传输数据的优先级，则UE1将使用r1，而UE3不能使用COT分配的r3。
如果UE1的待传输数据的优先级小于UE3的待传输数据的优先级且UE3的待传输数据的优先级大于抢占优先级阈值，则UE3抢占UE1的资源r1，而UE1需要从候选资源集中进行资源重选以确定传输资源。在进行资源重选时，UE1从候选资源集中排除时域上位于COT发起UE发起的COT内的资源得到可用资源集合，并从可用资源集合中选择传输资源，从而避免了再次选择到的资源与被分配给UE3的资源发生重叠。
根据本公开实施例的资源选择方法，第一UE从第二UE接收COT共享信息，通过资源感知确定时域上位于资源选择窗口中的候选资源集，从候选资源集中选择第一资源，根据COT共享信息确定第一资源是否与COT共享信息指示的COT内被第二UE分配给第三UE的第二资源至少部分重合，当确定第一资源与第二资源至少部分重合时，根据第一UE的待传输数据的优先级与第三UE的待传输数据的优先级选择第一UE的传输资源，由此，根据本实施例的资源选择方法，当第一UE在选择资源之前未获得COT共享信息而导致第一UE所选中的传输资源与第二UE通过COT共享机制分配给第三UE的资源至少部分重合时，可以避免第一UE与第三UE发生资源冲突，从而有效地避免了第二UE与第三UE之间的COT共享机制的失败，同时确保了第一UE使用传输资源传输数据的可靠性。
图9示出了根据本公开实施例的一种资源选择方法的流程示意图。如图9所示，该方法可以包括以下步骤。
S901，第一UE通过资源感知确定时域上位于资源选择窗口中的候选资源集。
S902，第一UE从候选资源集中选择第一资源。
S903，第一UE从第二UE接收COT共享信息。
S904，第一UE根据COT共享信息确定第一资源是否与共享COT共享信息指示的COT内的第二资源至少部分重合，其中第二UE通过COT共享信息将第二资源分配给第三UE。
S905，当确定第一资源与第二资源至少部分重合、第一UE的待传输数据的优先级小于第三UE的待传输数据的优先级且第三UE的待传输数据的优先级大于抢占优先级阈值时，第一UE从候选资源集中确定可用资源集合，可用资源集合包括候选资源集中的时域上不在COT内的资源。
关于上述步骤S901-S905的描述和具体细节，可以参考上述步骤S701-S705的相关描述与细节。
在一些实施例中，上述步骤S905可以包括以下步骤。
S9051，第一UE根据COT共享信息中的COT总长度确定COT的时间窗口。
COT共享信息中可以指示COT总长度。
第一UE在接收到COT共享信息后，可以解码获得COT发起UE发送该COT共享信息所在的时隙，即COT发起UE发起的COT的起始时隙，例如，如图5所示，第一UE UE1可以确定COT发起UE发起COT的起始时隙为t1。此外，COT共享信息中指示COT总长度为L，则第一UE可以确定该COT发起UE发起的COT的结束位置为t1+L，即图5中所示的t2。由此，第一UE可以确定COT发起UE发起的COT的时间窗口为[t1,t2]。
S9052，第一UE确定资源选择窗口与COT的时间窗口之间的重叠时间窗口。
第一UE在确定COT的时间窗口后，第一UE可以确定资源选择窗口与COT时间窗口之间的重叠时间窗口。
其中，可以将资源选择窗口的起始时间与COT的时间窗口的起始时间之间的较晚时间确定为重叠时间窗口的起始时间，将COT的时间窗口的终止时间与资源选择窗口的终止时间之间的较早时间确定为重叠时间窗口的终止时间。
例如，如图5所示，资源选择窗口为[n+T1,n+T2]，而COT的时间窗口为[t1,t2]，则资源选择窗口与COT的时间窗口之间的重叠时间窗口为[t3,t4]，其中，则t3＝max{t3，n+T1}，由于COT发起UE发起的COT在第一UE执行资源选择之前，即t3＜n+T1，所以，t3＝n+T1，而t4＝min{n+T2,t2}。
S9053，第一UE从候选资源集中确定时域上不在重叠时间窗口内的资源集合作为可用资源集合。
第一UE在确定重叠时间窗口后，第一UE可以从候选资源集中排除时域上位于重叠时间窗口内的资源得到可用资源集合。
例如，如图5所示，候选资源集中时域上位于[t3,t4]内的资源被排除。
S906，第一UE选择可用资源集合中的资源作为传输资源。
根据本公开实施例的资源选择方法，第一UE从第二UE接收COT共享信息，通过资源感知确定时域上位于资源选择窗口中的候选资源集，从候选资源集中选择第一资源，根据COT共享信息确定第一资源是否与COT共享信息指示的COT内被第二UE分配给第三UE的第二资源至少部分重合，当确定第一资源与第二资源至少部分重合时，根据第一UE的待传输数据的优先级与第三UE的待传输数据的优先级选择第一UE的传输资源，由此，根据本实施例的资源选择方法，当第一UE在选择资源之前 未获得COT共享信息而导致第一UE所选中的传输资源与第二UE通过COT共享机制分配给第三UE的资源至少部分重合时，可以避免第一UE与第三UE发生资源冲突，从而有效地避免了第二UE与第三UE之间的COT共享机制的失败，同时确保了第一UE使用传输资源传输数据的可靠性。
上述本申请提供的实施例中，从用户设备的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，用户设备可以包括硬件结构、软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
与上述几种实施例提供的资源选择方法相对应，本公开还提供一种资源选择装置，由于本公开实施例提供的资源选择装置与上述几种实施例提供的资源选择方法相对应，因此资源选择方法的实施方式也适用于本实施例提供的资源选择装置，在本实施例中不再详细描述。
图10为本公开实施例提供的一种资源选择装置1000的结构示意图，该资源选择装置1000可一为第一UE。
如图10所示，该装置1000可以包括处理模块1001和收发模块1002。
收发模块1002用于从第二UE接收信道占用时间COT共享信息。
处理模块1001用于根据所述COT共享信息与预设阈值中的至少一个确定所述资源选择装置能否共享所述COT共享信息指示的COT；通过资源感知确定时域上位于资源选择窗口中的候选资源集；当根据所述COT共享信息确定所述资源选择装置不能共享所述COT时，从所述候选资源集中确定可用资源集合，其中所述可用资源集合包括所述候选资源集中的时域上不在所述COT内的资源；以及选择所述可用资源集合中的资源作为所述资源选择装置的传输资源。
根据本公开实施例的资源选择装置，第一UE从第二UE接收COT共享信息，根据COT共享信息确定第一UE是否能够共享COT共享信息指示的COT，通过资源感知确定时域上位于资源选择窗口中的候选资源集，当确定第一UE不能共享COT时，从候选资源集中确定可用资源集合，选择可用资源集合中的资源作为第一UE的传输资源，由此，根据本实施例的资源选择装置，当第一UE不能共享COT时，使得第一UE选择的传输资源并未被第二UE通过COT共享机制分配给其他UE，从而有效地避免了第二UE与其他UE之间的COT共享机制的失败，同时确保了第一UE使用传输资源传输数据的可靠性。
在一些实施例中，所述处理模块1001还用于：根据所述COT共享信息确定能够共享所述COT的UE；以及当能够共享所述COT的UE不包括所述资源选择装置时，确定所述资源选择装置不能共享所述COT共享信息指示的COT。
在一些实施例中，所述处理模块1001还用于：根据所述COT共享信息确定能够共享所述COT的UE；当能够共享所述COT的UE不包括所述资源选择装置时，确定所述COT共享信息对应的物理直连链路信道的参考信号接收功率RSRP测量值是否大于预设RSRP阈值；以及当所述RSRP测量值大于所述预设RSRP阈值时，确定所述资源选择装置不能共享所述COT共享信息指示的COT。
在一些实施例中，所述处理模块1001还用于：根据所述COT共享信息中的COT总长度确定所述COT的时间窗口；确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口；以及从所候选资源集中确定时域上不在所述重叠时间窗口内的资源集合作为所述可用资源集合。
在一些实施例中，所述处理模块1001还用于：将所述资源选择窗口的起始时间与所述COT的时间窗口的起始时间之间的较晚时间确定为所述重叠时间窗口的起始时间，将所述COT的时间窗口的终止时间与所述资源选择窗口的终止时间之间的较早时间确定为所述重叠时间窗口的终止时间。
图11为本公开实施例提供的一种资源选择装置1100的结构示意图，该资源选择装置1100可一为第一UE。
如图11所示，该装置1100可以包括处理模块1101和收发模块1102。
收发模块1102用于从第二UE接收信道占用时间COT共享信息。
处理模块1101用于通过资源感知确定时域上在资源选择窗口中的候选资源集；从所述候选资源集中选择第一资源；根据所述COT共享信息确定所述第一资源是否与所述COT共享信息指示的COT内的第二资源至少部分重合，其中，所述第二UE通过所述COT共享信息将所述第二资源分配给第三UE；当确定所述第一资源与所述第二资源至少部分重合时，根据所述第一UE的待传输数据的优先级与所述第三UE的待传输数据的优先级选择所述第一UE的传输资源。
根据本实施例的资源选择装置，第一UE从第二UE接收COT共享信息，通过资源感知确定时域上位于资源选择窗口中的候选资源集，从候选资源集中选择第一资源，根据COT共享信息确定第一资 源是否与COT共享信息指示的COT内被第二UE分配给第三UE的第二资源至少部分重合，当确定第一资源与第二资源至少部分重合时，根据第一UE的待传输数据的优先级与第三UE的待传输数据的优先级选择第一UE的传输资源，由此，根据本实施例的资源选择装置，当第一UE在选择资源之前未获得COT共享信息而导致第一UE所选中的传输资源与第二UE通过COT共享机制分配给第三UE的资源至少部分重合时，可以避免第一UE与第三UE发生资源冲突，从而有效地避免了第二UE与第三UE之间的COT共享机制的失败，同时确保了第一UE使用传输资源传输数据的可靠性。
在一些实施例中，所述处理模块1101还用于：当所述第一UE的待传输数据的优先级大于所述第三UE的待传输数据的优先级时，选择所述第一资源作为所述传输资源。
在一些实施例中，所述处理模块1101还用于：当所述第一UE的待传输数据的优先级小于所述第三UE的待传输数据的优先级，且所述第三UE的待传输数据的优先级大于抢占优先级阈值时，从候选资源集中确定可用资源集合，其中所述可用资源集合包括所述候选资源集中的时域上不在所述COT内的资源；以及选择所述可用资源集合中的资源作为所述传输资源。
在一些实施例中，所述处理模块1101还用于：根据所述COT共享信息中的COT总长度确定所述COT的时间窗口；确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口；以及从所候选资源集中确定时域上不在所述重叠时间窗口内的资源集合作为所述可用资源集合。
在一些实施例中，所述处理模块1101还用于：将所述资源选择窗口的起始时间与所述COT的时间窗口的起始时间之间的较晚时间确定为所述重叠时间窗口的起始时间，将所述COT的时间窗口的终止时间与所述资源选择窗口的终止时间之间的较早时间确定为所述重叠时间窗口的终止时间。
本公开实施例还提供了一种通信系统，包括第一UE和第二UE。第二UE用于发送COT共享信息，以通过COT共享信息将COT共享信息指示的COT内的资源分配给第三UE。第一UE用于执行如上参考图2-5所述的资源选择方法。
本公开实施例还提供了一种通信系统，包括第一UE、第二UE和第三UE。第二UE发送COT共享信息，以通过COT共享信息将COT共享信息指示的COT内的资源分配给第三UE。第一UE用于执行如上参考图6-9所述的资源选择方法。
请参见图12，图12是本申请实施例提供的一种通信装置1200的结构示意图。通信装置1200可以是网络设备，也可以是用户设备，也可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持用户设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置1200可以包括一个或多个处理器1201。处理器1201可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。
可选的，通信装置1200中还可以包括一个或多个存储器1202，其上可以存有计算机程序1204，处理器1201执行所述计算机程序1204，以使得通信装置1200执行上述方法实施例中描述的方法。可选的，所述存储器1202中还可以存储有数据。通信装置1200和存储器1202可以单独设置，也可以集成在一起。
可选的，通信装置1200还可以包括收发器1205、天线1206。收发器1205可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器1205可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选的，通信装置1200中还可以包括一个或多个接口电路1207。接口电路1207用于接收代码指令并传输至处理器1201。处理器1201运行所述代码指令以使通信装置1200执行上述方法实施例中描述的方法。
在一种实现方式中，处理器1201中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，处理器1201可以存有计算机程序1203，计算机程序1203在处理器1201上运行，可使得通信装置1200执行上述方法实施例中描述的方法。计算机程序1203可能固化在处理器1201中，该种情况下，处理器1201可能由硬件实现。
在一种实现方式中，通信装置1200可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本申请中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络设备或者用户设备，但本申请中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图12的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，可参见图13所示的芯片的结构示意图。图13所示的芯片包括处理器1301和接口1302。其中，处理器1301的数量可以是一个或多个，接口1302的数量可以是多个。
可选的，芯片还包括存储器1303，存储器1303用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本申请实施例保护的范围。
本申请还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。
本申请还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以理解：本申请中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围，也表示先后顺序。
本申请中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本申请不做限制。在本申请实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
如本文使用的，术语“机器可读介质”和“计算机可读介质”指的是用于将机器指令和/或数据提供给可编程处理器的任何计算机程序产品、设备、和/或装置(例如，磁盘、光盘、存储器、可编程逻辑装置 (PLD))，包括，接收作为机器可读信号的机器指令的机器可读介质。术语“机器可读信号”指的是用于将机器指令和/或数据提供给可编程处理器的任何信号。
可以将此处描述的系统和技术实施在包括后台部件的计算系统(例如，作为数据服务器)、或者包括中间件部件的计算系统(例如，应用服务器)、或者包括前端部件的计算系统(例如，具有图形用户界面或者网络浏览器的用户计算机，用户可以通过该图形用户界面或者该网络浏览器来与此处描述的系统和技术的实施方式交互)、或者包括这种后台部件、中间件部件、或者前端部件的任何组合的计算系统中。可以通过任何形式或者介质的数字数据通信(例如，通信网络)来将系统的部件相互连接。通信网络的示例包括：局域网(LAN)、广域网(WAN)和互联网。
计算机系统可以包括客户端和服务器。客户端和服务器一般远离彼此并且通常通过通信网络进行交互。通过在相应的计算机上运行并且彼此具有客户端-服务器关系的计算机程序来产生客户端和服务器的关系。
应该理解，可以使用上面所示的各种形式的流程，重新排序、增加或删除步骤。例如，本公开中记载的各步骤可以并行地执行也可以顺序地执行也可以不同的次序执行，只要能够实现本公开公开的技术方案所期望的结果，本文在此不进行限制。
此外，应该理解，本申请所述的各种实施例可以单独实施，也可以在方案允许的情况下与其他实施例组合实施。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (24)

  1. 一种资源选择方法，其特征在于，所述方法由第一用户设备UE执行，包括：
    从第二UE接收信道占用时间COT共享信息；
    根据所述COT共享信息与预设阈值中的至少一个确定所述第一UE能否共享所述COT共享信息指示的COT；
    通过资源感知确定时域上位于资源选择窗口中的候选资源集；
    当根据所述COT共享信息确定所述第一UE不能共享所述COT时，从所述候选资源集中确定可用资源集合，其中所述可用资源集合包括所述候选资源集中的时域上不在所述COT内的资源；以及
    选择所述可用资源集合中的资源作为所述第一UE的传输资源。
  2. 如权利要求1所述的方法，其特征在于，所述根据所述COT共享信息与预设阈值中的至少一个确定所述第一UE能否共享所述COT共享信息指示的COT包括：
    根据所述COT共享信息确定能够共享所述COT的UE；以及
    当能够共享所述COT的UE不包括所述第一UE时，确定所述第一UE不能共享所述COT共享信息指示的COT。
  3. 如权利要求1所述的方法，其特征在于，所述根据所述COT共享信息与预设阈值中的至少一个确定所述第一UE能否共享所述COT共享信息指示的COT包括：
    根据所述COT共享信息确定能够共享所述COT的UE；
    当能够共享所述COT的UE不包括所述第一UE时，确定所述COT共享信息对应的物理直连链路信道的参考信号接收功率RSRP测量值是否大于预设RSRP阈值；以及
    当所述RSRP测量值大于所述预设RSRP阈值时，确定所述第一UE不能共享所述COT共享信息指示的COT。
  4. 如权利要求1-3中任一项所述的方法，其特征在于，所述从候选资源集中确定可用资源集合包括：
    根据所述COT共享信息中的COT总长度确定所述COT的时间窗口；
    确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口；以及
    从所候选资源集中确定时域上不在所述重叠时间窗口内的资源集合作为所述可用资源集合。
  5. 如权利要求4所述的方法，其特征在于，所述确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口包括：
    将所述资源选择窗口的起始时间与所述COT的时间窗口的起始时间之间的较晚时间确定为所述重叠时间窗口的起始时间，
    将所述COT的时间窗口的终止时间与所述资源选择窗口的终止时间之间的较早时间确定为所述重叠时间窗口的终止时间。
  6. 一种资源选择方法，其特征在于，所述方法由第一用户设备UE执行，包括：
    通过资源感知确定时域上在资源选择窗口中的候选资源集；
    从所述候选资源集中选择第一资源；
    从第二UE接收COT共享信息；
    根据所述COT共享信息确定所述第一资源是否与第二资源至少部分重合，其中，所述第二资源为所述COT共享信息指示的COT内的资源，所述第二UE通过所述COT共享信息将所述第二资源分配给第三UE；
    当确定所述第一资源与所述第二资源至少部分重合时，根据所述第一UE的待传输数据的优先级与所述第三UE的待传输数据的优先级选择所述第一UE的传输资源。
  7. 如权利要求6所述的方法，其特征在于，所述根据所述第一UE的待传输数据的优先级与所述第三UE的待传输数据的优先级选择所述第一UE的传输资源包括：
    当所述第一UE的待传输数据的优先级大于所述第三UE的待传输数据的优先级时，选择所述第一资源作为所述传输资源。
  8. 如权利要求6所述的方法，其特征在于，所述根据所述第一UE的待传输数据的优先级与所述第三UE的待传输数据的优先级选择所述第一UE的传输资源包括：
    当所述第一UE的待传输数据的优先级小于所述第三UE的待传输数据的优先级，且所述第三UE的待传输数据的优先级大于抢占优先级阈值时，从候选资源集中确定可用资源集合，其中所述可用资源集合包括所述候选资源集中的时域上不在所述COT内的资源；以及
    选择所述可用资源集合中的资源作为所述传输资源。
  9. 如权利要求8所述的方法，其特征在于，所述从候选资源集中确定可用资源集合包括：
    根据所述COT共享信息中的COT总长度确定所述COT的时间窗口；
    确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口；以及
    从所候选资源集中确定时域上不在所述重叠时间窗口内的资源集合作为所述可用资源集合。
  10. 如权利要求9所述的方法，其特征在于，所述确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口包括：
    将所述资源选择窗口的起始时间与所述COT的时间窗口的起始时间之间的较晚时间确定为所述重叠时间窗口的起始时间，
    将所述COT的时间窗口的终止时间与所述资源选择窗口的终止时间之间的较早时间确定为所述重叠时间窗口的终止时间。
  11. 一种资源选择装置，其特征在于，包括：
    收发模块，用于从第二UE接收信道占用时间COT共享信息；
    处理模块，用于根据所述COT共享信息与预设阈值中的至少一个确定所述资源选择装置能否共享所述COT共享信息指示的COT；通过资源感知确定时域上位于资源选择窗口中的候选资源集；当根据所述COT共享信息确定所述资源选择装置不能共享所述COT时，从所述候选资源集中确定可用资源集合，其中所述可用资源集合包括所述候选资源集中的时域上不在所述COT内的资源；以及选择所述可用资源集合中的资源作为所述资源选择装置的传输资源。
  12. 如权利要求11所述的装置，其特征在于，所述处理模块还用于：
    根据所述COT共享信息确定能够共享所述COT的UE；以及
    当能够共享所述COT的UE不包括所述资源选择装置时，确定所述资源选择装置不能共享所述COT共享信息指示的COT。
  13. 如权利要求11所述的装置，其特征在于，所述处理模块还用于：
    根据所述COT共享信息确定能够共享所述COT的UE；
    当能够共享所述COT的UE不包括所述资源选择装置时，确定所述COT共享信息对应的物理直连链路信道的参考信号接收功率RSRP测量值是否大于预设RSRP阈值；以及
    当所述RSRP测量值大于所述预设RSRP阈值时，确定所述资源选择装置不能共享所述COT共享信息指示的COT。
  14. 如权利要求11-13中任一项所述的装置，其特征在于，所述处理模块还用于：
    根据所述COT共享信息中的COT总长度确定所述COT的时间窗口；
    确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口；以及
    从所候选资源集中确定时域上不在所述重叠时间窗口内的资源集合作为所述可用资源集合。
  15. 如权利要求14所述的装置，其特征在于，所述处理模块还用于：
    将所述资源选择窗口的起始时间与所述COT的时间窗口的起始时间之间的较晚时间确定为所述重叠时间窗口的起始时间，或者
    将所述COT的时间窗口的终止时间与所述资源选择窗口的终止时间之间的较早时间确定为所述重叠时间窗口的终止时间。
  16. 一种资源选择装置，其特征在于，包括：
    收发模块，用于从第二UE接收COT共享信息；
    处理模块，用于通过资源感知确定时域上在资源选择窗口中的候选资源集；从所述候选资源集中选择第一资源；根据所述COT共享信息确定所述第一资源是否与第二资源至少部分重合，其中，所述第二资源为所述COT共享信息指示的COT内的资源，所述第二UE通过所述COT共享信息将所述第二资源分配给第三UE；当确定所述第一资源与所述第二资源至少部分重合时，根据所述第一UE的待传输数据的优先级与所述第三UE的待传输数据的优先级选择所述第一UE的传输资源。
  17. 如权利要求16所述的装置，其特征在于，所述处理模块还用于：
    当所述第一UE的待传输数据的优先级大于所述第三UE的待传输数据的优先级时，选择所述第一资源作为所述传输资源。
  18. 如权利要求16所述的装置，其特征在于，所述处理模块还用于：
    当所述第一UE的待传输数据的优先级小于所述第三UE的待传输数据的优先级，且所述第三UE的待传输数据的优先级大于抢占优先级阈值时，从候选资源集中确定可用资源集合，其中所述可用资源集合包括所述候选资源集中的时域上不在所述COT内的资源；以及
    选择所述可用资源集合中的资源作为所述传输资源。
  19. 如权利要求18所述的装置，其特征在于，所述处理模块还用于：
    根据所述COT共享信息中的COT总长度确定所述COT的时间窗口；
    确定所述资源选择窗口与所述COT的时间窗口之间的重叠时间窗口；以及
    从所候选资源集中确定时域上不在所述重叠时间窗口内的资源集合作为所述可用资源集合。
  20. 如权利要求19所述的装置，其特征在于，所述处理模块还用于：
    将所述资源选择窗口的起始时间与所述COT的时间窗口的起始时间之间的较晚时间确定为所述重叠时间窗口的起始时间，或者
    将所述COT的时间窗口的终止时间与所述资源选择窗口的终止时间之间的较早时间确定为所述重叠时间窗口的终止时间。
  21. 一种通信设备，其中，包括：收发器；存储器；处理器，分别与所述收发器及所述存储器连接，配置为通过执行所述存储器上的计算机可执行指令，控制所述收发器的无线信号收发，实现如权利要求1-10任一项所述的方法。
  22. 一种通信系统，包括第一用户设备UE和第二UE，所述第一UE执行如权利要求1-5中任一项所述的方法。
  23. 一种通信系统，包括第一用户设备UE、第二UE和第三UE，所述第一UE执行如权利要求6-10中任一项所述的方法。
  24. 一种计算机存储介质，其中，所述计算机存储介质存储有计算机可执行指令；所述计算机可执行指令被处理器执行后，实现如权利要求1-10任一项所述的方法。
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CN111432376A (zh) * 2020-06-11 2020-07-17 之江实验室 一种协作式v2x无线资源分配和调度方法
WO2021262896A1 (en) * 2020-06-24 2021-12-30 Qualcomm Incorporated Channel occupancy time sharing based on received signal strength
US20220061095A1 (en) * 2020-08-20 2022-02-24 Qualcomm Incorporated Listen-before-talk (lbt) aware autonomous sensing for sidelink
US20220159725A1 (en) * 2020-11-13 2022-05-19 Qualcomm Incorporated Channel occupancy time aware sensing and resource selection for new radio-unlicensed sidelink

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Publication number Priority date Publication date Assignee Title
CN111432376A (zh) * 2020-06-11 2020-07-17 之江实验室 一种协作式v2x无线资源分配和调度方法
WO2021262896A1 (en) * 2020-06-24 2021-12-30 Qualcomm Incorporated Channel occupancy time sharing based on received signal strength
US20220061095A1 (en) * 2020-08-20 2022-02-24 Qualcomm Incorporated Listen-before-talk (lbt) aware autonomous sensing for sidelink
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