WO2022126338A1 - 资源选择方法、资源选择装置及存储介质 - Google Patents

资源选择方法、资源选择装置及存储介质 Download PDF

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Publication number
WO2022126338A1
WO2022126338A1 PCT/CN2020/136235 CN2020136235W WO2022126338A1 WO 2022126338 A1 WO2022126338 A1 WO 2022126338A1 CN 2020136235 W CN2020136235 W CN 2020136235W WO 2022126338 A1 WO2022126338 A1 WO 2022126338A1
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WIPO (PCT)
Prior art keywords
resource
user equipment
conflict
data transmission
resource selection
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PCT/CN2020/136235
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English (en)
French (fr)
Inventor
赵文素
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202080004070.8A priority Critical patent/CN112640499A/zh
Priority to PCT/CN2020/136235 priority patent/WO2022126338A1/zh
Publication of WO2022126338A1 publication Critical patent/WO2022126338A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a resource selection method, a resource selection device, and a storage medium.
  • user equipment A in direct communication can send an auxiliary resource set to user equipment B whose resource selection mode is Mode2, and user equipment B will consider it when selecting resources for its own data transmission.
  • resource selection mode is Mode2
  • user equipment B will consider it when selecting resources for its own data transmission.
  • the present disclosure provides a resource selection method, a resource selection device and a storage medium.
  • a resource selection method which is applied to a first user equipment.
  • the resource selection method includes: in response to determining that a resource for data transmission by the second user equipment satisfies a resource conflict condition, sending a request to a The second user equipment sends the auxiliary resource set.
  • the resource conflict condition includes: a resource conflict has occurred on a resource for data transmission by the second user equipment.
  • resources for data transmission by the second user equipment have occurred resource conflicts, including:
  • the received signal strength indication value of the subchannel on which the second user equipment performs data transmission is greater than the received signal strength threshold.
  • the resource conflict condition includes: resources for data transmission by the second user equipment are about to have a resource conflict.
  • the resources for data transmission by the second user equipment are about to conflict with resources, including:
  • the resource selection method further includes: sending a conflict indication to the second user equipment, where the conflict indication is used to indicate the resource conflict condition.
  • At least one of an auxiliary resource set and a conflict indication is sent to the second user equipment.
  • a resource selection method which is applied to a second user equipment.
  • the resource selection method includes: receiving an auxiliary resource set sent by the first user equipment, where the auxiliary resource set is sent by the first user equipment.
  • a user equipment sends the data when it determines that the resource for data transmission by the second user equipment satisfies the resource conflict condition.
  • the resource conflict condition includes: a resource conflict has occurred on a resource for data transmission by the second user equipment.
  • resources for data transmission by the second user equipment have occurred resource conflicts, including:
  • the received signal strength indication value of the subchannel on which the second user equipment performs data transmission is greater than the received signal strength threshold.
  • the resource conflict condition includes: resources for data transmission by the second user equipment are about to have a resource conflict.
  • the resources for data transmission by the second user equipment are about to conflict with resources, including:
  • the resource selection method further includes: receiving a conflict indication sent by the first user equipment, where the conflict indication is used to indicate the resource conflict condition.
  • the resource selection method further includes: in response to receiving a conflict indication sent by the first user equipment, retransmitting data corresponding to a resource in which a resource conflict has occurred.
  • the resource selection method further includes: in response to receiving the conflict indication sent by the first user equipment and the received HARQ correct response feedback confirmation, retransmitting the data corresponding to the resource for which the resource conflict has occurred.
  • the resource selection method further includes: in response to receiving a conflict indication sent by the first user equipment, reselecting resources for data transmission based on the auxiliary resource set.
  • At least one of an auxiliary resource set and a conflict indication sent by the first user equipment is received based on the first-stage direct link control information or the second-stage direct link control information.
  • a resource selection apparatus which is applied to a first user equipment, and the resource selection apparatus includes:
  • a sending unit configured to send an auxiliary resource set to the second user equipment in response to determining that the resource for data transmission by the second user equipment satisfies the resource conflict condition.
  • the resource conflict condition includes:
  • a resource conflict has occurred on the resource for the second user equipment to perform data transmission.
  • resources for data transmission by the second user equipment have occurred resource conflicts, including:
  • the received signal strength indication value of the subchannel on which the second user equipment performs data transmission is greater than the received signal strength threshold.
  • the resource conflict condition includes: resources for data transmission by the second user equipment are about to have a resource conflict.
  • the resources for data transmission by the second user equipment are about to conflict with resources, including:
  • the sending unit is further configured to: send a conflict indication to the second user equipment, where the conflict indication is used to indicate the resource conflict condition.
  • the sending unit sends at least one of an auxiliary resource set and a conflict indication to the second user equipment based on the first-stage direct link control information or the second-stage direct link control information.
  • a resource selection apparatus which is applied to a second user equipment, and the resource selection apparatus includes:
  • a receiving unit configured to receive an auxiliary resource set sent by the first user equipment, where the auxiliary resource set is sent when the first user equipment determines that the resources for data transmission by the second user equipment meet a resource conflict condition.
  • the resource conflict condition includes: a resource conflict has occurred on a resource for data transmission by the second user equipment.
  • resources for data transmission by the second user equipment have occurred resource conflicts, including:
  • the received signal strength indication value of the subchannel on which the second user equipment performs data transmission is greater than the received signal strength threshold.
  • the resource conflict condition includes: a resource conflict is about to occur on the resource of the second user equipment for data transmission.
  • the resources for data transmission by the second user equipment are about to conflict with resources, including:
  • the receiving unit is further configured to:
  • a conflict indication sent by the first user equipment is received, where the conflict indication is used to indicate the resource conflict condition.
  • the resource selection apparatus further includes a sending unit, and the sending unit is configured to:
  • the resource selection apparatus further includes a sending unit, and the sending unit is configured to:
  • the resource selection apparatus further includes a sending unit, and the sending unit is configured to:
  • the receiving unit receives at least one of the auxiliary resource set and the conflict indication sent by the first user equipment based on the first-stage direct link control information or the second-stage direct link control information .
  • a resource selection apparatus including:
  • processor ; memory for storing processor-executable instructions;
  • the processor is configured to: execute the first aspect or the resource selection method described in any implementation manner of the first aspect.
  • a resource selection apparatus including:
  • processor ; memory for storing processor-executable instructions;
  • the processor is configured to: execute the second aspect or the resource selection method described in any implementation manner of the second aspect.
  • a non-transitory computer-readable storage medium which enables the mobile terminal to execute the first aspect or the first aspect when instructions in the storage medium are executed by a processor of a mobile terminal.
  • a non-transitory computer-readable storage medium which enables the mobile terminal to execute the second aspect or the second aspect when instructions in the storage medium are executed by a processor of a mobile terminal.
  • the technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: the first device sends an auxiliary resource set to the second user equipment in response to determining that the resources used for data transmission by the second user equipment satisfy the resource conflict condition, thereby realizing the first The device sends the auxiliary resource set based on the resource conflict condition.
  • FIG. 1 shows a direct-connected communication system according to an exemplary embodiment.
  • Fig. 2 is a flow chart of a resource selection method according to an exemplary embodiment.
  • Fig. 3 is a flow chart of a resource selection method according to an exemplary embodiment
  • Fig. 4 is a flow chart of a resource selection method according to an exemplary embodiment.
  • Fig. 5 is a flow chart of a method for resource selection according to an exemplary embodiment.
  • Fig. 6 is a flow chart of a resource selection method according to an exemplary embodiment
  • Fig. 7 is a flow chart of a method for resource selection according to an exemplary embodiment.
  • Fig. 8 is a flow chart of a resource selection method according to an exemplary embodiment
  • Fig. 9 is a flow chart of a method for resource selection according to an exemplary embodiment.
  • Fig. 10 is a flowchart showing a method for resource selection according to an exemplary embodiment.
  • Fig. 11 is a flow chart of a resource selection method according to an exemplary embodiment
  • Fig. 12 is a flow chart of a method for resource selection according to an exemplary embodiment.
  • FIG. 13 is a schematic diagram showing that a conflict has occurred, according to an exemplary embodiment.
  • FIG. 14 is a schematic diagram illustrating a future conflict caused by the overlap (partial or full overlap) of reserved resources according to an exemplary embodiment.
  • Fig. 15 is a block diagram of a resource selection apparatus according to an exemplary embodiment.
  • Fig. 16 is a block diagram of a resource selection apparatus according to an exemplary embodiment.
  • Fig. 17 is a block diagram of an apparatus for resource selection according to an exemplary embodiment.
  • the resource selection method provided by the embodiment of the present disclosure can be applied to the direct-connected communication system shown in FIG. 1 .
  • the network device configures various transmission parameters for data transmission for the directly connected communication device 1 .
  • the direct-connected communication device 1, the directly-connected communication device 2 and the directly-connected communication device 3 perform direct-connected communication. Obstacles may exist between the directly connected communication device 2 and the directly connected communication device 3 .
  • the link for communication between the network device and the directly connected communication device is an uplink and downlink, and the link between the directly connected communication device and the directly connected communication device is a sidelink.
  • the communication scenario of the direct communication between the directly connected communication devices may be a vehicle wireless communication technology (Vehicle to Everything, V2X) business scenario.
  • V represents the in-vehicle device
  • X represents any object that interacts with the in-vehicle device.
  • X mainly includes in-vehicle devices, handheld devices, traffic roadside infrastructure and networks.
  • the information modes of V2X interaction include: Vehicle to Vehicle (V2V), Vehicle to Infrastructure (V2I), Vehicle to Pedestrian (Vehicle to Pedestrian, V2I) V2P), the interaction between in-vehicle devices and the network (Vehicle to Network, V2N).
  • 5G V2x sidelink can provide higher communication rate, shorter communication delay, and more reliable communication quality.
  • the communication scenario of direct communication between directly connected communication devices may also be a device to device (Device to Device, D2D) communication scenario.
  • the direct-connected communication devices that perform direct communication in the 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 (Mobile station, MS), terminal (terminal), terminal equipment (Terminal Equipment) and so on.
  • UE User Equipment
  • MS mobile station
  • terminal terminal equipment
  • Terminal Equipment Terminal Equipment
  • the enhancement of NR Sidelink can improve transmission reliability and reduce delay.
  • the 3GPP working group reached a conclusion that it is necessary to study a way to assist the selection of resources between user equipments.
  • two user equipments are specified.
  • user equipment A is an auxiliary user equipment of user equipment B
  • user equipment B refers to the user equipment that needs to perform resource selection for the data sent by itself.
  • user equipment A will determine a resource set and send it to user equipment B in mode 2.
  • user equipment B selects resources, it will consider the resource set sent by user equipment A, that is, it can be understood as user equipment B Use an auxiliary resource set to assist in resource selection.
  • user equipment B may send data to user equipment A and/or other user equipments.
  • the timing for sending the auxiliary resource set has not yet been determined, that is, when to trigger the user equipment A to send the auxiliary resource set to the user equipment B has not yet been resolved.
  • An embodiment of the present disclosure provides a resource selection method, in which a user equipment providing an auxiliary resource set detects that a resource for data transmission performed by the user equipment using the auxiliary resource set assistance mechanism for resource selection satisfies a resource collision (collision) condition, providing The user equipment of the auxiliary resource set sends the auxiliary resource set to the user equipment that uses the auxiliary resource set assistance mechanism for resource selection.
  • a resource collision collision
  • the user equipment that provides auxiliary resources is referred to as the first user equipment, and the user equipment that uses the auxiliary resource set assistance mechanism for resource selection is referred to as the second user equipment.
  • Fig. 2 is a flow chart of a resource selection method according to an exemplary embodiment. As shown in Fig. 2 , the resource selection method is used in a first user equipment and includes the following steps.
  • step S11 in response to determining that the resource for data transmission by the second user equipment satisfies the resource conflict condition, the auxiliary resource set is sent to the second user equipment.
  • the resources used by the second user equipment for data transmission may be understood as resources selected by the second user equipment for sending and/or receiving data by itself.
  • the resource conflict of the resources of the second user equipment for data transmission can be understood as the data transmission between the resources of the second user equipment and other user equipments other than the second user equipment (hereinafter referred to as the third user equipment) for data transmission A resource conflict occurs for the resource.
  • the occurrence of resource conflict involved in the embodiments of the present disclosure can be understood as a conflict of time-domain resources and a conflict of frequency-domain resources.
  • a resource conflict condition may be pre-defined, and when it is determined that the resource for data transmission by the second user equipment satisfies the pre-defined resource conflict condition, the first user equipment is triggered to send an auxiliary resource set to the second user equipment.
  • the resource conflict condition includes: a resource conflict has occurred on the resource for the second user equipment to perform data transmission.
  • Fig. 3 is a flow chart of a resource selection method according to an exemplary embodiment. As shown in Fig. 3 , the resource selection method is used in a first user equipment, and includes the following steps.
  • step S21 in response to determining that resources for data transmission by the second user equipment have conflicted with resources, send an auxiliary resource set to the second user equipment.
  • the first user equipment may determine that the resource conflict condition is satisfied, and trigger the sending of the auxiliary resource set to the second user equipment.
  • a conflict occurs between the time domain resource and the frequency domain resource.
  • the received signals are interference signals with each other, and the received signal strength indicator (Received Signal Strength Indicator, RSSI) value will be relatively high, so the embodiment of the present disclosure can detect sub-channels by detecting RSSI on the channel to detect resource conflicts. By measuring the RSSI value on each sub-channel, and comparing the RSSI value with the RSSI threshold, if the RSSI value is greater than the RSSI threshold, it can be determined that a resource conflict has occurred on the sub-channel.
  • RSSI Received Signal Strength Indicator
  • the RSSI value of the subchannel on which the second user equipment performs data transmission is greater than the RSSI threshold, it may be determined that a resource conflict has occurred on the resources of the second user equipment for data transmission.
  • Fig. 4 is a flow chart of a resource selection method according to an exemplary embodiment. As shown in Fig. 4 , the resource selection method is used in a first user equipment, and includes the following steps.
  • step S31 in response to the RSSI value of the subchannel on which the second user equipment performs data transmission is greater than the RSSI threshold, the first user equipment sends the auxiliary resource set to the second user equipment.
  • the resource conflict condition includes: a resource conflict is about to occur on the resource for data transmission performed by the second user equipment.
  • the imminent resource conflict of resources for data transmission by the second user equipment may be understood as resource overlap between the resources reserved for data transmission by the second user equipment and the resources reserved for data transmission by the third user equipment.
  • the occurrence of resource overlap may be partial resource overlap or all resource overlap.
  • Fig. 5 is a flowchart of a method for resource selection according to an exemplary embodiment. As shown in Fig. 5 , the method for resource selection is used in a first user equipment, and includes the following steps.
  • step S41 in response to determining that resources for data transmission by the second user equipment are about to have a resource conflict, an auxiliary resource set is sent to the second user equipment.
  • the first user equipment may acquire direct link control information (Sidelink Control Information, SCI) of other user equipments that are different from the first user equipment.
  • SCI Servicelink Control Information
  • the first user equipment may detect that the SCIs of different user equipments reserve overlapping time and frequency resources.
  • the first user equipment receives the SCIs of at least two other different user equipments, it first detects that there are certain time-frequency resources reserved by the two different user equipments by decoding the reservation time/frequency resource information field in the first-stage SCI.
  • Coincidence that is, the sub-channel and slot where the resource is located are coincident.
  • the first device determines, by decoding the SCI information of the second user equipment and the SCI information of the third user equipment, the resources used by the second user equipment for data transmission to perform data transmission with other user equipments other than the second user equipment
  • a resource conflict may occur for the reserved resources. That is, if there are partially overlapping resources or all overlapping resources between the first reserved resources indicated by the SCI of the second user equipment and the second reserved resources indicated by the SCI of the third user equipment, it can be determined that the second user equipment performs The resource of the data transfer is about to have a resource conflict.
  • Fig. 6 is a flowchart showing a method for resource selection according to an exemplary embodiment. As shown in Fig. 6 , the method for resource selection is used in a first user equipment, and includes the following steps.
  • step S51 in response to the existence of partially overlapping resources or all overlapping resources between the first reserved resources indicated by the SCI of the second user equipment and the second reserved resources indicated by the SCI of the third user equipment, the first user equipment The device sends the auxiliary resource set to the second user equipment.
  • the first device triggers to send the auxiliary resource set to the second user equipment by detecting that the resource for data transmission by the second user equipment satisfies the resource conflict condition, so that the first user equipment can send an auxiliary resource set to the second user equipment.
  • the condition for the second user equipment to send the auxiliary resource set is determined.
  • the auxiliary resource set sent by the first device to the second user equipment may be carried in the first-stage sidelink control information (first Sidelink Control Information, first SCI) or the second Phase through link control information (second Sidelink Control Information, second SCI).
  • first SCI Sidelink Control Information
  • second SCI Second Sidelink Control Information
  • the first device sends an auxiliary resource set based on the first SCI or the second SCI.
  • the resource selection method provided by the embodiment of the present disclosure may send a conflict indication to the second user equipment in response to the first user equipment determining that the resource for data transmission by the second user equipment satisfies the resource conflict condition.
  • the conflict indication can be used to indicate the resource conflict conditions involved in the above, and can also be understood as being used to indicate the location of time-domain resources and frequency-domain resources in which resource conflict has occurred, or to indicate the time-domain resource conflict that is about to occur Location of resources and frequency domain resources.
  • an auxiliary resource set and a conflict indication may be sent to the second user equipment.
  • Fig. 7 is a flow chart of a method for resource selection according to an exemplary embodiment. As shown in Fig. 7 , the method for resource selection is used in a first user equipment and includes the following steps.
  • step S61 in response to the first user equipment determining that the resources for data transmission by the second user equipment satisfy the resource conflict condition, the first user equipment sends an auxiliary resource set and a conflict indication to the second user equipment.
  • the resource for performing data transmission by the second user equipment satisfies the resource conflict condition may be that a resource conflict has occurred for the resource for performing data transmission by the second user equipment.
  • a resource conflict has occurred on the resources used by the second user equipment for data transmission, including: a received signal strength indicator value of a subchannel on which the second user equipment performs data transmission is greater than a received signal strength threshold.
  • the resource for the second user equipment to perform data transmission satisfies the resource conflict condition may be that the resource for the second user equipment to perform data transmission is about to have a resource conflict.
  • the resource conflict about the resources for data transmission by the second user equipment may be understood as a direct link between the first reserved resource indicated by the direct link control information of the second user equipment and the third user equipment. Partially overlapping resources or completely overlapping resources exist among the second reserved resources indicated by the path control information.
  • the first user equipment may send the auxiliary resource set and the conflict indication to the second user equipment based on the first SCI or the second SCI.
  • the first user equipment can obtain the source ID of the second user equipment that has reserved overlapping resources by decoding the second SCI, and at this time, the first user equipment sends the second user equipment to the second user equipment according to the corresponding source ID.
  • the user equipment sends at least one of an auxiliary resource set and a conflict indication.
  • the first user equipment is triggered to send the auxiliary resource set to the second user equipment
  • the second user equipment may receive the auxiliary resource set sent by the first user equipment, and use the auxiliary resource set to assist in resource selection.
  • Fig. 8 is a flowchart of a method for resource selection according to an exemplary embodiment. As shown in Fig. 8 , the method for resource selection is used in a second user equipment, and includes the following steps.
  • step S71 an auxiliary resource set sent by the first user equipment is received, wherein the auxiliary resource set is sent when the first user equipment determines that the resources for data transmission by the second user equipment meet the resource conflict condition.
  • the resource for performing data transmission by the second user equipment satisfies the resource conflict condition may be that a resource conflict has occurred for the resource for performing data transmission by the second user equipment.
  • a resource conflict has occurred on the resources used by the second user equipment for data transmission, including: a received signal strength indicator value of a subchannel on which the second user equipment performs data transmission is greater than a received signal strength threshold.
  • the resource for the second user equipment to perform data transmission satisfies the resource conflict condition may be that the resource for the second user equipment to perform data transmission is about to have a resource conflict.
  • the resource conflict about the resources for data transmission by the second user equipment may be understood as a direct link between the first reserved resource indicated by the direct link control information of the second user equipment and the third user equipment. Partially overlapping resources or completely overlapping resources exist among the second reserved resources indicated by the path control information.
  • the second user equipment may receive the auxiliary resource set sent by the first user equipment based on the first SCI or the second SCI.
  • the second user equipment may receive a conflict indication sent by the first user equipment, and the conflict indication may be a case where the first user equipment determines that the resource for data transmission by the second user equipment satisfies the resource conflict condition. to send.
  • Fig. 9 is a flow chart of a method for resource selection according to an exemplary embodiment. As shown in Fig. 9 , the method for resource selection is used in a second user equipment and includes the following steps.
  • step S81 the auxiliary resource set and the conflict indication sent by the first user equipment are received, wherein the auxiliary resource set and the conflict indication are sent by the first user equipment when the resources for data transmission by the second user equipment meet the resource conflict condition.
  • the conflict indication may be used to indicate the resource conflict conditions involved in the above, and it may also be understood as being used to indicate the location of time-domain resources and frequency-domain resources for which resource conflicts have occurred, or to indicate resources that are about to occur The location of the conflicting time-domain resources and frequency-domain resources.
  • the second user equipment may receive at least one of the auxiliary resource set and the conflict indication sent by the first user equipment based on the first SCI or the second SCI.
  • the second user equipment receives the conflict indication, and performs a corresponding response operation based on the content indicated by the conflict indication.
  • the second device may determine the data that needs to be retransmitted.
  • the second user equipment When the second user equipment retransmits data, it may select data retransmission resources based on the auxiliary resource set and resources perceived by itself, that is, the first user equipment assists the second user equipment to perform data retransmission.
  • the auxiliary resource set includes a resource set recommended for use by the second user equipment and a resource set that is not recommended for use by the second user equipment. Retransmission of data based on resource selection based on the auxiliary resource set can improve reliability.
  • the second user equipment may be detected when the first user equipment detects that a resource conflict occurs is directly triggered, the second user equipment does not consider whether to receive a hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) feedback.
  • Hybrid Automatic Repeat reQuest Hybrid Automatic Repeat reQuest
  • Fig. 10 is a flowchart showing a method for resource selection according to an exemplary embodiment. As shown in Fig. 10 , the method for resource selection is used in a second user equipment, and includes the following steps.
  • step S91 in response to receiving the conflict indication sent by the first user equipment, the second user equipment retransmits the data corresponding to the resource transmission in which the resource conflict has occurred.
  • whether the second user equipment performs data retransmission may also consider the first user equipment It is triggered by the resource conflict detected by the device and the HARQ feedback of the second user equipment.
  • HARQ feedback is for broadcast scenarios, does not support correct acknowledgement feedback acknowledgement (ACK) feedback, and only supports error acknowledgement (NACK) feedback.
  • NACK error acknowledgement
  • data retransmission is required.
  • HARQ feedback For the scenarios of unicast and multicast HARQ option2, the unicast HARQ feedback specified in R16 supports NACK/ACK, and option 2 in multicast supports NACK/ACK (the HARQ feedback of the multicast option only feeds back NACK). Therefore, in the embodiment of the present disclosure, whether the resource conflict detected by the first user equipment and the HARQ feedback of the second user equipment are simultaneously considered to trigger the second device to perform data retransmission or not, there are the following four situations:
  • Fig. 11 is a flowchart showing a method for resource selection according to an exemplary embodiment. As shown in Fig. 11 , the method for resource selection is used in a second user equipment, and includes the following steps.
  • step S101 in response to receiving the conflict indication sent by the first user equipment and the received HARQ ACK, retransmit the data corresponding to the resource for which the resource conflict has occurred.
  • the second device may determine that resource reselection is required.
  • Fig. 12 is a flow chart of a method for resource selection according to an exemplary embodiment. As shown in Fig. 12 , the method for resource selection is used in a second user equipment and includes the following steps.
  • step S111 in response to receiving the conflict indication sent by the first user equipment, resources for data transmission are reselected based on the auxiliary resource set sent by the first user equipment.
  • the conflict indication is used to instruct the second user equipment that a resource for data transmission is about to have a resource conflict, it can also be understood as a conflict indication used to instruct the second user equipment to no longer select the resource that is about to have a resource conflict for data transmission .
  • the resource reselection when the second user equipment performs resource reselection, the resource reselection may be performed based on the auxiliary resource set sent by the first user equipment and the resources perceived by the second user equipment.
  • the auxiliary resource set sent by the first user equipment includes a resource set recommended for use by the second user equipment and a resource set not recommended for use by the second user equipment, and resource reselection is performed to avoid resource conflicts in the future.
  • the resource selection method involved in the foregoing embodiment is described below with reference to an example.
  • the first user equipment is UEA
  • the second user equipment is UEB
  • the third user equipment is UEC as an example for description.
  • the UEA when a pre-defined condition that UEA detects a collision is satisfied, the UEA is triggered to send the auxiliary resource set to the UEB.
  • the UEA detects a conflict in the following two situations:
  • Step1 UEA detects that a conflict has occurred. At this time, UEA immediately sends an auxiliary resource set and a conflict indication to UEB.
  • the conflict indication indicates the location of the time-frequency domain resource where the conflict occurred. UEB knows which data to retransmit according to the conflict indication. .
  • Step2 UEB considers both the auxiliary resource set and the resources it perceives when retransmitting data.
  • the auxiliary resource set includes the resource set recommended for use by UEB and the resource set not recommended for UEB to use. Resource selection to retransmit data can improve the reliability.
  • the retransmission of the UEB is triggered by considering both the detection of the collision by the UEA and the HARQ feedback of the UEB.
  • the unicast HARQ feedback specified in R16 supports NACK/ACK
  • option2 in multicast supports NACK/ACK (the HARQ feedback of the multicast option only feeds back NACK)
  • the threshold is pre-configured through RRC, indicating that a conflict has occurred on the sub-channel. If there is a conflict, it means that there are multiple UEs sending data on the sub-channel at the same time, and there are multiple received signals. If the received signals are interference signals with each other, RSSI is used to detect the conflict.
  • Step1 UEA finds that they have reserved overlapping time and frequency resources by decoding into the SCI of UEB and other UEs (eg UEC).
  • Step 2 UEA sends an auxiliary resource set and a conflict indication to UEB.
  • the conflict indication is used to instruct UEB to no longer select this resource for data transmission.
  • the UEB considers the auxiliary resource set and the resources it perceives, and the auxiliary resource set includes a resource set recommended for use by the UEB and a resource set not recommended for use by the UEB, and performs resource reselection to avoid future conflicts.
  • UEA detects that the SCIs of different UEs reserve overlapping time and frequency resources.
  • UEA receives SCIs of different UEBs and other UEs, it first decodes the reservation time/frequency resource information field in the first-stage SCI and detects two The time-frequency resources reserved by the UE have a certain overlap, that is, the sub-channel and the slot where the resources are located are overlapped, and then when decoding the second-stage SCI, the source IDs of the two UEs that have reserved the overlapped resources are obtained.
  • UEA sends an auxiliary resource set and a conflict indication to UEB according to the corresponding source ID.
  • auxiliary resource sets and conflict indications are carried by second SCI or first SCI.
  • the conflict indication is used to indicate the location of the time-frequency domain resource where the conflict that has occurred or is about to occur.
  • the resource selection method provided by the embodiments of the present disclosure solves the problem of when the UEA sends the auxiliary resource set to the UEB when the UEA assists the UEB in resource selection.
  • an embodiment of the present disclosure also provides a resource selection apparatus.
  • the resource selection apparatus includes corresponding hardware structures and/or software modules for executing each function.
  • the embodiments of the present disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 15 is a block diagram of a resource selection apparatus according to an exemplary embodiment.
  • the resource selection apparatus 100 is applied to the first user equipment, and the resource selection apparatus 100 includes a sending unit 101 .
  • the sending unit 101 is configured to send an auxiliary resource set to the second user equipment in response to determining that the resource for data transmission by the second user equipment satisfies the resource conflict condition.
  • the resource conflict condition includes: a resource conflict has occurred on the resource for the second user equipment to perform data transmission.
  • a resource conflict has occurred on the resources used by the second user equipment for data transmission, including: a received signal strength indicator value of a subchannel on which the second user equipment performs data transmission is greater than a received signal strength threshold.
  • the resource conflict condition includes: a resource conflict is about to occur on resources for data transmission by the second user equipment.
  • resources for data transmission by the second user equipment are about to conflict with resources, including: the first reserved resource indicated by the direct link control information of the second user equipment and the direct link of the third user equipment Partially overlapping resources or all overlapping resources exist among the second reserved resources indicated by the control information.
  • the sending unit 101 is further configured to: send a conflict indication to the second user equipment, where the conflict indication is used to indicate a resource conflict condition.
  • the sending unit 101 sends at least one of the auxiliary resource set and the conflict indication to the second user equipment based on the first-stage direct link control information or the second-stage direct link control information.
  • Fig. 16 is a block diagram of a resource selection apparatus according to an exemplary embodiment.
  • the resource selection apparatus 200 is applied to the second user equipment, and the resource selection apparatus 200 includes a receiving unit 201 .
  • the receiving unit 201 is configured to receive an auxiliary resource set sent by the first user equipment, where the auxiliary resource set is sent by the first user equipment when the resources for data transmission performed by the second user equipment meet the resource conflict condition.
  • the resource conflict condition includes: a resource conflict has occurred on the resource for the second user equipment to perform data transmission.
  • a resource conflict has occurred on the resources used by the second user equipment for data transmission, including: a received signal strength indicator value of a subchannel on which the second user equipment performs data transmission is greater than a received signal strength threshold.
  • the resource conflict condition includes: a resource conflict is about to occur on resources for data transmission by the second user equipment.
  • resources for data transmission by the second user equipment are about to conflict with resources, including: the first reserved resource indicated by the direct link control information of the second user equipment and the direct link of the third user equipment There are overlapping resources among the second reserved resources indicated by the control information.
  • the receiving unit 201 is further configured to: receive a conflict indication sent by the first user equipment, where the conflict indication is used to indicate a resource conflict condition.
  • the resource selection apparatus 200 further includes a sending unit 202, and the sending unit 202 is configured to:
  • the receiving unit 201 In response to receiving the conflict indication sent by the first user equipment, the receiving unit 201 retransmits the data corresponding to the resource for which resource conflict has occurred.
  • the resource selection apparatus 200 further includes a sending unit 202, and the sending unit 202 is configured to:
  • the resource selection apparatus 200 further includes a sending unit 202, and the sending unit is configured to: in response to the receiving unit 201 receiving the conflict indication sent by the first user equipment, based on the auxiliary resource set, re-select resources for data transmission .
  • the receiving unit 201 receives at least one of the auxiliary resource set and the conflict indication sent by the first user equipment based on the first-stage direct link control information or the second-stage direct link control information.
  • FIG. 17 is a block diagram of an apparatus 300 for resource selection according to an exemplary embodiment.
  • the apparatus 300 may be the first user equipment or the second user equipment involved in the foregoing embodiments.
  • apparatus 300 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
  • apparatus 300 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, audio component 310, input/output (I/O) interface 312, sensor component 314, and Communication component 316 .
  • the processing component 302 generally controls the overall operation of the device 300, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 302 may include one or more processors 320 to execute instructions to perform all or some of the steps of the methods described above. Additionally, processing component 302 may include one or more modules that facilitate interaction between processing component 302 and other components. For example, processing component 302 may include a multimedia module to facilitate interaction between multimedia component 308 and processing component 302 .
  • Memory 304 is configured to store various types of data to support operations at device 300 . Examples of such data include instructions for any application or method operating on device 300, contact data, phonebook data, messages, pictures, videos, and the like. Memory 304 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power component 306 provides power to various components of device 300 .
  • Power components 306 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to device 300 .
  • Multimedia component 308 includes screens that provide an output interface between the device 300 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action.
  • the multimedia component 308 includes a front-facing camera and/or a rear-facing camera. When the apparatus 300 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
  • Audio component 310 is configured to output and/or input audio signals.
  • audio component 310 includes a microphone (MIC) that is configured to receive external audio signals when device 300 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 304 or transmitted via communication component 316 .
  • audio component 310 also includes a speaker for outputting audio signals.
  • the I/O interface 312 provides an interface between the processing component 302 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
  • Sensor assembly 314 includes one or more sensors for providing status assessment of various aspects of device 300 .
  • the sensor assembly 314 can detect the open/closed state of the device 300, the relative positioning of components, such as the display and keypad of the device 300, and the sensor assembly 314 can also detect a change in the position of the device 300 or a component of the device 300 , the presence or absence of user contact with the device 300 , the orientation or acceleration/deceleration of the device 300 and the temperature change of the device 300 .
  • Sensor assembly 314 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 316 is configured to facilitate wired or wireless communication between apparatus 300 and other devices.
  • Device 300 may access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 316 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 316 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • apparatus 300 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • non-transitory computer-readable storage medium including instructions, such as a memory 304 including instructions, executable by the processor 320 of the apparatus 300 to perform the method described above.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • first, second, etc. are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish the same type of information from one another, and do not imply a particular order or level of importance. In fact, the expressions “first”, “second” etc. are used completely interchangeably.
  • the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information, without departing from the scope of the present disclosure.

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Abstract

本公开是关于一种资源选择方法、资源选择装置及存储介质。资源选择方法应用于第一用户设备，第一用户设备响应于确定第二用户设备进行数据传输的资源满足资源冲突条件，向第二用户设备发送辅助资源集，可以实现第一设备基于资源冲突条件进行辅助资源集的发送。

Description

资源选择方法、资源选择装置及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及一种资源选择方法、资源选择装置及存储介质。
背景技术
自长期演进(Long Term Evolution，LTE)以来，第三代合作伙伴(Third Generation Partnership，3GPP)一直在制定直通链路(Sidelink)标准，将其作为终端到终端直接通信的标准。2020年7月，新无线(New Radio，NR)Sidelink的第一个标准已经在Rel-16中完成，其中NR Sidelink的解决方案主要用于车辆到所有(vehicle to everything，V2X)和公共安全。对于V2X和公共安全，由于时间限制，Release16并未完全支持服务要求和操作方案，并且服务与系统(Service and System Aspects，SA)在Release17 NR Sidelink进行一些增强，例如针对3GPP支持高级V2X服务的体系结构增强和系统增强。此外，在SA工作组中，正在研究与NR Sidelink相关的其他商业用例，例如网络控制的交互式服务，增强型能源效率继电器、广泛的覆盖范围、视听服务制作。所以，在3GPP第86次全会上，在Release17的立项中，把NR Sidelink的增强作为工作项目，目的是增强Sidelink传输的可靠性和减小时延。
在NR Sidelink的增强中，对于直连通信的用户设备A可以发送一个辅助资源集合给资源选择方式为Mode2的用户设备B，用户设备B在为自己的数据传输进行资源选择时加以考虑。然而，相关技术中并不存在何时触发用户设备A向用户设备B发送辅助资源集合的实施方案。
发明内容
为克服相关技术中存在的问题，本公开提供一种资源选择方法、资源选择装置及存储介质。
根据本公开实施例的第一方面，提供一种资源选择方法，应用于第一用户设备，所述资源选择方法包括：响应于确定第二用户设备进行数据传输的资源满足资源冲突条件，向所述第二用户设备发送辅助资源集。
一种实施方式中，所述资源冲突条件，包括：第二用户设备进行数据传输的资源已经发生资源冲突。
一种实施方式中，所述第二用户设备进行数据传输的资源已经发生资源冲突，包括：
第二用户设备进行数据传输的子信道的接收信号强度指示值，大于接收信号强度阈 值。
一种实施方式中，所述资源冲突条件，包括：第二用户设备进行数据传输的资源即将发生资源冲突。
一种实施方式中，所述第二用户设备进行数据传输的资源即将发生资源冲突，包括：
第二用户设备的直连链路控制信息指示的第一预留资源与第三用户设备的直连链路控制信息指示的第二预留资源之间存在部分重合的资源或者全部重合的资源。
一种实施方式中，所述资源选择方法还包括：向所述第二用户设备发送冲突指示，所述冲突指示用于指示所述资源冲突条件。
一种实施方式中，基于第一阶段直连链路控制信息或第二阶段直连链路控制信息，向所述第二用户设备发送辅助资源集和冲突指示中的至少一个。
根据本公开实施例第二方面，提供一种资源选择方法，应用于第二用户设备，所述资源选择方法包括：接收第一用户设备发送的辅助资源集，所述辅助资源集由所述第一用户设备确定第二用户设备进行数据传输的资源满足资源冲突条件情况下发送。
一种实施方式中，所述资源冲突条件，包括：第二用户设备进行数据传输的资源已经发生资源冲突。
一种实施方式中，所述第二用户设备进行数据传输的资源已经发生资源冲突，包括：
第二用户设备进行数据传输的子信道的接收信号强度指示值，大于接收信号强度阈值。
一种实施方式中，所述资源冲突条件，包括：第二用户设备进行数据传输的资源即将发生资源冲突。
一种实施方式中，所述第二用户设备进行数据传输的资源即将发生资源冲突，包括：
第二用户设备的直连链路控制信息指示的第一预留资源与第三用户设备的直连链路控制信息指示的第二预留资源之间存在重合的资源。
一种实施方式中，所述资源选择方法还包括：接收第一用户设备发送的冲突指示，所述冲突指示用于指示所述资源冲突条件。
一种实施方式中，所述资源选择方法还包括：响应于接收到第一用户设备发送的冲突指示，重传已经发生资源冲突的资源对应传输的数据。
一种实施方式中，所述资源选择方法还包括：响应于接收到第一用户设备发送的冲突指示，且接收到的HARQ正确应答反馈确认，重传已经发生资源冲突的资源对应传输的数据。
一种实施方式中，所述资源选择方法还包括：响应于接收到第一用户设备发送的冲突 指示，基于所述辅助资源集，重新选择进行数据传输的资源。
一种实施方式中，基于第一阶段直连链路控制信息或第二阶段直连链路控制信息，接收所述第一用户设备发送的辅助资源集和冲突指示中的至少一个。
根据本公开实施例第三方面，提供一种资源选择装置，应用于第一用户设备，所述资源选择装置包括：
发送单元，被配置为响应于确定第二用户设备进行数据传输的资源满足资源冲突条件，向所述第二用户设备发送辅助资源集。
一种实施方式中，所述资源冲突条件，包括：
第二用户设备进行数据传输的资源已经发生资源冲突。
一种实施方式中，所述第二用户设备进行数据传输的资源已经发生资源冲突，包括：
第二用户设备进行数据传输的子信道的接收信号强度指示值，大于接收信号强度阈值。
一种实施方式中，所述资源冲突条件，包括：第二用户设备进行数据传输的资源即将发生资源冲突。
一种实施方式中，所述第二用户设备进行数据传输的资源即将发生资源冲突，包括：
第二用户设备的直连链路控制信息指示的第一预留资源与第三用户设备的直连链路控制信息指示的第二预留资源之间存在部分重合的资源或者全部重合的资源。
一种实施方式中，所述发送单元还被配置为：向所述第二用户设备发送冲突指示，所述冲突指示用于指示所述资源冲突条件。
一种实施方式中，所述发送单元基于第一阶段直连链路控制信息或第二阶段直连链路控制信息，向所述第二用户设备发送辅助资源集和冲突指示中的至少一个。
根据本公开实施例第四方面，提供一种资源选择装置，应用于第二用户设备，所述资源选择装置包括：
接收单元，用于接收第一用户设备发送的辅助资源集，所述辅助资源集由所述第一用户设备确定第二用户设备进行数据传输的资源满足资源冲突条件情况下发送。
一种实施方式中，所述资源冲突条件，包括：第二用户设备进行数据传输的资源已经发生资源冲突。
一种实施方式中，所述第二用户设备进行数据传输的资源已经发生资源冲突，包括：
第二用户设备进行数据传输的子信道的接收信号强度指示值，大于接收信号强度阈值。
一种实施方式中，所述资源冲突条件，包括：第二用户设备进行数据传输的资源即将 发生资源冲突。
一种实施方式中，所述第二用户设备进行数据传输的资源即将发生资源冲突，包括：
第二用户设备的直连链路控制信息指示的第一预留资源与第三用户设备的直连链路控制信息指示的第二预留资源之间存在重合的资源。
一种实施方式中，所述接收单元还被配置为：
接收第一用户设备发送的冲突指示，所述冲突指示用于指示所述资源冲突条件。
一种实施方式中，所述资源选择装置还包括发送单元，所述发送单元被配置为：
响应于所述接收单元接收到第一用户设备发送的冲突指示，重传已经发生资源冲突的资源对应传输的数据。
一种实施方式中，所述资源选择装置还包括发送单元，所述发送单元被配置为：
响应于所述接收单元接收到第一用户设备发送的冲突指示，且接收到的HARQ反馈确认，重传已经发生资源冲突的资源对应传输的数据。
一种实施方式中，所述资源选择装置还包括发送单元，所述发送单元被配置为：
响应于所述接收单元接收到第一用户设备发送的冲突指示，基于所述辅助资源集，重新选择进行数据传输的资源。
一种实施方式中，所述接收单元基于第一阶段直连链路控制信息或第二阶段直连链路控制信息，接收所述第一用户设备发送的辅助资源集和冲突指示中的至少一个。
根据本公开实施例第五方面，提供一种资源选择装置，包括：
处理器；用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：执行第一方面或者第一方面任意一种实施方式中所述的资源选择方法。
根据本公开实施例第六方面，提供一种资源选择装置，包括：
处理器；用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：执行第二方面或者第二方面任意一种实施方式中所述的资源选择方法。
根据本公开实施例第七方面，提供一种非临时性计算机可读存储介质，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行第一方面或者第一方面任意一种实施方式中所述的资源选择方法。
根据本公开实施例第八方面，提供一种非临时性计算机可读存储介质，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行第二方面或者第二方面任意一种实施方式中所述的资源选择方法。
本公开的实施例提供的技术方案可以包括以下有益效果：第一设备响应于确定第二用户设备进行数据传输的资源满足资源冲突条件，向第二用户设备发送辅助资源集，进而可以实现第一设备基于资源冲突条件进行辅助资源集的发送。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种直连通信系统。
图2是根据一示例性实施例示出的一种资源选择方法的流程图。
图3是根据一示例性实施例示出的一种资源选择方法的流程图
图4是根据一示例性实施例示出的一种资源选择方法的流程图。
图5是根据一示例性实施例示出的一种资源选择方法的流程图。
图6是根据一示例性实施例示出的一种资源选择方法的流程图
图7是根据一示例性实施例示出的一种资源选择方法的流程图。
图8是根据一示例性实施例示出的一种资源选择方法的流程图
图9是根据一示例性实施例示出的一种资源选择方法的流程图。
图10是根据一示例性实施例示出的一种资源选择方法的流程图。
图11是根据一示例性实施例示出的一种资源选择方法的流程图
图12是根据一示例性实施例示出的一种资源选择方法的流程图。
图13是根据一示例性实施例示出的已经发生冲突的示意图。
图14是根据一示例性实施例示出的预留资源的重合(部分或者全部重合)导致的将来发生冲突的示意图。
图15是根据一示例性实施例示出的一种资源选择装置框图。
图16是根据一示例性实施例示出的一种资源选择装置框图。
图17是根据一示例性实施例示出的一种用于资源选择的装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权 利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
本公开实施例提供的资源选择方法可应用于图1所示的直连通信系统。参阅图1所示，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，直连通信设备2和直连通信设备3进行直连通信。直连通信设备2和直连通信设备3之间可以存在障碍物。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(sidelink)。
本公开中，直连通信设备之间直接通信的通信场景可以是车用无线通信技术(Vehicle to Everything，V2X)业务场景。其中，V代表车载设备，X代表任何与车载设备交互的对象。当前X主要包含车载设备、手持设备、交通路侧基础设施和网络。V2X交互的信息模式包括：车载设备与车载设备之间(Vehicle to Vehicle，V2V)、车载设备与路边设备之间(Vehicle to Infrastructure，V2I)、车载设备与手持设备之间(Vehicle to Pedestrian，V2P)、车载设备与网络之间(Vehicle to Network，V2N)的交互。
随着新一代5G移动通信技术的发展，在3GPP Rel-16中利用5G NR技术实现了对新的V2x通信服务和场景的支持，如车队管理(Vehicles Platooning)，感知扩展(Extended Sensors)，先进驾驶(Advanced Driving)，和远程驾驶(remote driving)等。总体来说，5G V2x sidelink能够提供更高的通信速率，更短的通信延时，更可靠的通信质量。
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(Device to 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(Mobile station，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用户设备为例进行说明。
其中，NR Sidelink的增强可以提高传输可靠性和减小时延。在NR Sidelink的增强中，在增强Mode2资源分配的方面，3GPP工作组达成结论，需要研究一种用户设备间辅助选择资源的方式。在这种方式中，规定了两个用户设备，例如，用户设备A是用户设备B的辅助用户设备，用户设备B是指需要为自身发送的数据进行资源选择的用户设备。其中，用户设备A会确定一个资源集，且通过mode 2的方式发送给用户设备B，用户设备B在进行资源选择时，会考虑用户设备A发送的资源集，即可以理解为是用户设备B使用辅助资源集协助机制进行资源选择。其中，用户设备B可以将数据发送给用户设备A和/或其他用户设备。
然而，相关技术中针对辅助资源集协助机制进行资源选择的通信方式中，针对辅助资源集的发送时机还未确定，即何时触发用户设备A向用户设备B发送辅助资源集还未解决。在102e会议中讨论了需要考虑满足预先定义的条件后，用户设备A向用户设备B发送辅助资源集，但并未对该预先定义的条件进行说明。
本公开实施例提供一种资源选择方法，在提供辅助资源集的用户设备检测到使用辅助资源集协助机制进行资源选择的用户设备进行数据传输的资源满足资源冲突(collision)条件的情况下，提供辅助资源集的用户设备向使用辅助资源集协助机制进行资源选择的用户设备，发送辅助资源集。
本公开实施例中为描述方便，将提供辅助资源的用户设备称为第一用户设备，将使用辅助资源集协助机制进行资源选择的用户设备称为第二用户设备。
图2是根据一示例性实施例示出的一种资源选择方法的流程图，如图2所示，资源选择方法用于第一用户设备中，包括以下步骤。
在步骤S11中，响应于确定第二用户设备进行数据传输的资源满足资源冲突条件，向第二用户设备发送辅助资源集。
本公开实施例中，第二用户设备进行数据传输的资源可以理解为是第二用户设备为自身发送和/或接收数据所选择的资源。
其中，第二用户设备进行数据传输的资源发生资源冲突可以理解为是第二用户设备进行数据传输的资源与非第二用户设备的其他用户设备(以下称为第三用户设备)进行数据传输的资源发生资源冲突。
本公开实施例中涉及的发生资源冲突可以理解为是时域资源发生冲突和频域资源发生冲突。
其中，本公开实施例可以预先定义资源冲突条件，在确定第二用户设备进行数据传输的资源满足该预先定义的资源冲突条件时，触发第一用户设备向第二用户设备发送辅助资源集。
本公开实施例提供的资源选择方法，一种实施方式中，资源冲突条件包括：第二用户设备进行数据传输的资源已经发生资源冲突。
图3是根据一示例性实施例示出的一种资源选择方法的流程图，如图3所示，资源选择方法用于第一用户设备中，包括以下步骤。
在步骤S21中，响应于确定第二用户设备进行数据传输的资源已经发生资源冲突，向第二用户设备发送辅助资源集。
本公开实施例中，第一用户设备若检测到第二用户设备进行数据传输的资源已经发生 资源冲突，则可确定满足资源冲突条件，触发向第二用户设备发送辅助资源集。
进一步的，资源已经发生资源冲突时，可以理解为是在时域资源和频域资源上发生冲突。例如，在同一子信道(sub-channnel)上同时存在多个用户设备在发送数据，或者也可以理解为是存在多个接收信号。其中，同一子信道中存在多个接收信号情况下，接收信号之间互为干扰信号，接收信号强度指示(Received Signal Strength Indicator，RSSI)值会相对较高，故本公开实施例可以通过检测子信道上的RSSI来检测资源冲突。通过测量每个sub-channnel上的RSSI值，将RSSI值与RSSI阈值进行比较，若RSSI值大于RSSI阈值，则可以确定该sub-channnel上已经发生资源冲突。
一示例中，本公开实施例中，响应于第二用户设备进行数据传输的子信道的RSSI值大于RSSI阈值，则可确定第二用户设备进行数据传输的资源已经发生资源冲突。
图4是根据一示例性实施例示出的一种资源选择方法的流程图，如图4所示，资源选择方法用于第一用户设备中，包括以下步骤。
在步骤S31中，响应于第二用户设备进行数据传输的子信道的RSSI值大于RSSI阈值，第一用户设备向第二用户设备发送辅助资源集。
本公开实施例提供的资源选择方法，一种实施方式中，资源冲突条件包括：第二用户设备进行数据传输的资源即将发生资源冲突。
本公开实施例中，第二用户设备进行数据传输的资源即将发生资源冲突可以理解为是第二用户设备进行数据传输的预留资源和第三用户设备进行数据传输的预留资源发生资源重合。其中，发生资源重合可以是部分资源重合，或者全部资源重合。
图5是根据一示例性实施例示出的一种资源选择方法的流程图，如图5所示，资源选择方法用于第一用户设备中，包括以下步骤。
在步骤S41中，响应于确定第二用户设备进行数据传输的资源即将发生资源冲突，向第二用户设备发送辅助资源集。
本公开实施例中，第一用户设备可以获取不同于第一用户设备的其他用户设备的直连链路控制信息(Sidelink Control Information，SCI)。一示例中，第一用户设备可以检测不同的用户设备的SCI预留了互相重合的时间和频率资源。第一用户设备在接收到其他至少两个不同用户设备的SCI时，首先通过解码第一阶段SCI中reservation time/frequency resource信息字段，检测到两个不同用户设备预留的时频资源存在一定的重合，即资源所在的sub-channel和slot是重合的。本公开实施例中，第一设备通过解码第二用户设备的SCI信息以及第三用户设备的SCI信息，确定第二用户设备进行数据传输的资源与非第二用户设备的其他用户设备进行数据传输的预留资源可能会发生资源冲突。即，第二用户设 备的SCI指示的第一预留资源与第三用户设备的SCI指示的第二预留资源之间存在部分重合的资源或者全部重合的资源，则可确定第二用户设备进行数据传输的资源即将发生资源冲突。
图6是根据一示例性实施例示出的一种资源选择方法的流程图，如图6所示，资源选择方法用于第一用户设备中，包括以下步骤。
在步骤S51中，响应于第二用户设备的SCI指示的第一预留资源与第三用户设备的SCI指示的第二预留资源之间存在部分重合的资源或者全部重合的资源，第一用户设备向第二用户设备发送辅助资源集。
本公开上述各实施例中提供的资源选择方法，第一设备通过检测到第二用户设备进行数据传输的资源满足资源冲突条件，触发向第二用户设备发送辅助资源集，实现第一用户设备向第二用户设备发送辅助资源集的条件确定。
本公开上述各实施例中提供的资源选择方法中，第一设备向第二用户设备发送的辅助资源集可以携带在第一阶段直通链路控制信息(first Sidelink Control Information，first SCI)或第二阶段直通链路控制信息(second Sidelink Control Information，second SCI)中。换言之，第一设备基于first SCI或second SCI发送辅助资源集。
本公开实施例提供的资源选择方法，响应于第一用户设备确定第二用户设备进行数据传输的资源满足资源冲突条件，可以向第二用户设备发送冲突指示。其中，该冲突指示可以用于指示上述涉及的资源冲突条件，也可以理解为是用于指示已经发生资源冲突的时域资源和频域资源的位置，或者用于指示即将发生资源冲突的时域资源和频域资源的位置。
本公开实施例提供的资源选择方法，响应于第一用户设备确定第二用户设备进行数据传输的资源满足资源冲突条件，可以向第二用户设备发送辅助资源集和冲突指示。
图7是根据一示例性实施例示出的一种资源选择方法的流程图，如图7所示，资源选择方法用于第一用户设备中，包括以下步骤。
在步骤S61中，响应于第一用户设备确定第二用户设备进行数据传输的资源满足资源冲突条件，第一用户设备向第二用户设备发送辅助资源集和冲突指示。
其中，一种实施方式中，第二用户设备进行数据传输的资源满足资源冲突条件可以是第二用户设备进行数据传输的资源已经发生资源冲突。
一种实施方式中，第二用户设备进行数据传输的资源已经发生资源冲突，包括：第二用户设备进行数据传输的子信道的接收信号强度指示值，大于接收信号强度阈值。
一种实施方式中，第二用户设备进行数据传输的资源满足资源冲突条件可以是第二用户设备进行数据传输的资源即将发生资源冲突。
一种实施方式中，第二用户设备进行数据传输的资源即将发生资源冲突可以理解为是第二用户设备的直连链路控制信息指示的第一预留资源与第三用户设备的直连链路控制信息指示的第二预留资源之间存在部分重合的资源或者全部重合的资源。
其中，第一用户设备可以基于first SCI或second SCI向第二用户设备发送辅助资源集和冲突指示。
进一步的，本公开实施例中，第一用户设备可以通过解码second SCI，分别得到预留了重合资源的第二用户设备的源ID，此时第一用户设备根据对应的源ID，向第二用户设备发送辅助资源集和冲突指示中的至少一个。
本公开实施例中第一用户设备被触发向第二用户设备发送辅助资源集，第二用户设备可以接收第一用户设备发送的辅助资源集，并使用辅助资源集协助机制进行资源选择。
图8是根据一示例性实施例示出的一种资源选择方法的流程图，如图8所示，资源选择方法用于第二用户设备中，包括以下步骤。
在步骤S71中，接收第一用户设备发送的辅助资源集，其中，辅助资源集由第一用户设备确定第二用户设备进行数据传输的资源满足资源冲突条件情况下发送。
其中，一种实施方式中，第二用户设备进行数据传输的资源满足资源冲突条件可以是第二用户设备进行数据传输的资源已经发生资源冲突。
一种实施方式中，第二用户设备进行数据传输的资源已经发生资源冲突，包括：第二用户设备进行数据传输的子信道的接收信号强度指示值，大于接收信号强度阈值。
一种实施方式中，第二用户设备进行数据传输的资源满足资源冲突条件可以是第二用户设备进行数据传输的资源即将发生资源冲突。
一种实施方式中，第二用户设备进行数据传输的资源即将发生资源冲突可以理解为是第二用户设备的直连链路控制信息指示的第一预留资源与第三用户设备的直连链路控制信息指示的第二预留资源之间存在部分重合的资源或者全部重合的资源。
其中，第二用户设备可以基于first SCI或second SCI接收第一用户设备发送的辅助资源集。
进一步的，本公开实施例中第二用户设备可以接收第一用户设备发送的冲突指示，该冲突指示可以是由第一用户设备确定第二用户设备进行数据传输的资源满足资源冲突条件的情况下进行发送。
图9是根据一示例性实施例示出的一种资源选择方法的流程图，如图9所示，资源选择方法用于第二用户设备中，包括以下步骤。
在步骤S81中，接收第一用户设备发送的辅助资源集和冲突指示，其中，辅助资源集 和冲突指示由第一用户设备确定第二用户设备进行数据传输的资源满足资源冲突条件情况下发送。
本公开实施例中，该冲突指示可以用于指示上述涉及的资源冲突条件，也可以理解为是用于指示已经发生资源冲突的时域资源和频域资源的位置，或者用于指示即将发生资源冲突的时域资源和频域资源的位置。
本公开上述各实施例中，第二用户设备可以基于first SCI或second SCI接收第一用户设备发送的辅助资源集和冲突指示中的至少一个。
更进一步的，本公开实施例中第二用户设备接收到冲突指示，基于冲突指示所指示的内容进行相应的响应操作。
一种实施方式中，若冲突指示用于指示第二用户设备进行数据传输的资源已经发生冲突，则第二设备可以确定需要重传的数据。
第二用户设备重传数据时可以基于辅助资源集和自己感知的资源进行数据重传资源的选择，即第一用户设备辅助第二用户设备进行数据重传。其中，辅助资源集包括推荐第二用户设备使用的资源集和不推荐第二用户设备使用的资源集，基于辅助资源集进行资源选择来重传数据，可以提高可靠性(reliability)。
在本公开实施例中，在第一用户设备辅助第二用户设备进行数据重传(retransmission)的情况下，一种实施方式中，第二用户设备可以是在第一用户设备检测到发生资源冲突时直接触发的，第二用户设备不会考虑否接收到混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)反馈。换言之，第二用户设备若接收到第一用户设备发送给第二用户设备的冲突指示，第二用户设备就开始进行数据重传。
图10是根据一示例性实施例示出的一种资源选择方法的流程图，如图10所示，资源选择方法用于第二用户设备中，包括以下步骤。
在步骤S91中，响应于接收到第一用户设备发送的冲突指示，第二用户设备重传已经发生资源冲突的资源对应传输的数据。
在本公开实施例中，在第一用户设备辅助第二用户设备进行数据重传(retransmission)的情况下，另一种实施方式中，第二用户设备是否进行数据重传可以同时考虑第一用户设备检测到的资源冲突和第二用户设备的HARQ反馈来触发。
其中，HARQ反馈针对广播场景，不支持正确应答反馈确认(ACK)反馈，只支持进行错误应答(NACK)反馈。针对NACK反馈，是需要进行数据重传的。HARQ反馈针对单播和组播HARQ option2的场景下，R16规定的单播的HARQ反馈是支持NACK/ACK的，组播中的option2中支持NACK/ACK的(组播的option的HARQ反馈只反馈NACK 的)。故，本公开实施例中，同时考虑第一用户设备检测到的资源冲突和第二用户设备的HARQ反馈来触发第二设备进行数据重传与否，有以下四种情况：
Figure PCTCN2020136235-appb-000001
图11是根据一示例性实施例示出的一种资源选择方法的流程图，如图11所示，资源选择方法用于第二用户设备中，包括以下步骤。
在步骤S101中，响应于接收到第一用户设备发送的冲突指示，且接收到的HARQ ACK，重传已经发生资源冲突的资源对应传输的数据。
另一种实施方式中，若冲突指示用于指示第二用户设备进行数据传输的资源即将发生资源冲突，则第二设备可以确定需要进行资源重选。
图12是根据一示例性实施例示出的一种资源选择方法的流程图，如图12所示，资源选择方法用于第二用户设备中，包括以下步骤。
在步骤S111中，响应于接收到第一用户设备发送的冲突指示，基于第一用户设备发送的辅助资源集，重新选择进行数据传输的资源。
其中，冲突指示用于指示第二用户设备进行数据传输的资源即将发生资源冲突，则也可以理解为是冲突指示用于指示第二用户设备不再选择该即将发生资源冲突的资源用于数据发送。
其中，本公开实施例中，第二用户设备进行资源重选时，可以基于第一用户设备发送的辅助资源集和自己感知的资源进行资源重选。其中，第一用户设备发送的辅助资源集包括推荐第二用户设备使用的资源集和不推荐第二用户设备使用的资源集，进行资源重选，避免了将来发生资源冲突。
本公开实施例以下结合一示例对上述实施例涉及的资源选择方法进行说明。其中，以第一用户设备为UEA，第二用户设备为UEB，第三用户设备为UEC为例进行说明。
本公开实施例中，当满足UEA检测到冲突这个预先定义的条件时，触发UEA发送辅助资源集给UEB。其中UEA检测到冲突可以有如下两种情况：
情况1：已经发生冲突。
情况2：预留资源的重合(部分或者全部重合)导致将来发生冲突。
针对情况1：UEA检测到已经发生冲突的示意图如图13所示。
Step1：UEA检测到了已经发生冲突的，此时UEA立即向UEB发送辅助资源集和冲突指示，冲突指示发生的冲突所在的时频域资源的位置，UEB根据冲突指示知道对哪个数据的进行重传。
step2：UEB重发数据时同时考虑这个辅助资源集和自己感知的资源，该辅助资源集包括推荐UEB使用的资源集和不推荐UEB使用的资源集，进行资源选择来重发数据的，可以提高reliability。
在该方案中，在UEA辅助UEB重发时，主要分为以下两种方案：
方案1.UEB的重传由UEA检测到冲突直接触发的，UEB不会考虑是否接收到的HARQ反馈。一旦接收到UEA发送给UEB的冲突指示，UEB就开始进行重传。
方案2.UEB的重传同时考虑UEA检测到冲突和UEB的HARQ反馈来触发的。针对单播和组播HARQ option2的场景下，R16规定的单播HARQ反馈支持NACK/ACK，组播中的option2支持NACK/ACK(组播的option的HARQ反馈只反馈NACK的)，有以下四种情况：
Figure PCTCN2020136235-appb-000002
进一步的，针对UEA如何检测到已经发生的冲突可采用如下方案：
通过测量每个子信道(sub-channnel)上的RSSI值。如果RSSI值>阈值,阈值是通过RRC来预先配置的，说明该sub-channnel上发生了冲突。因为发生冲突的，说明该sub-channnel上同时存在多个UE在发送数据，存在多个接收的信号，接收信号之间互为干扰信号的，所以使用RSSI来检测冲突。
针对情况2：预留资源的重合(部分或者全部重合)导致的将来发生的冲突的示意图如图14所示。
Step1：UEA通过解码到UEB和其他UE(例如UEC)的SCI中，发现它们预留了互相重合的时间和频率资源。
step2：UEA发送辅助资源集和冲突指示给UEB，此时冲突指示用于指示UEB不再选择这块资源用于数据发送。UEB考虑这个辅助资源集和自身感知的资源，该辅助资源集包括推荐UEB使用的资源集和不推荐UEB使用的资源集，进行资源重选，避免了将来的冲突的发生。
进一步的，针对UEA如何检测到即将发生冲突，可采用如下方案：
UEA检测不同的UE的SCI预留了互相重合的时间和频率资源，UEA在接收不同UEB和其他UE的SCI时，首先通过解码第一阶段SCI中reservation time/frequency resource信息字段，检测到两个UE预留的时频资源存在一定的重合，即资源所在的sub-channel和slot是重合的，然后解码第二阶段SCI时，分别得到预留了重合资源的两个UE的源ID，此时UEA根据对应的源ID，向UEB发送辅助资源集和冲突指示。
更进一步的，辅助资源集和冲突指示由second SCI或者是first SCI来携带的。冲突指示，用于指示已经发生或者将要发生的冲突所在的时频域资源的位置。
本公开实施例提供的资源选择方法，解决了UEA辅助UEB资源选择时UEA何时把辅助资源集发送给UEB的问题。
基于相同的构思，本公开实施例还提供一种资源选择装置。
可以理解的是，本公开实施例提供的资源选择装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开实施例中所公开的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图15是根据一示例性实施例示出的一种资源选择装置框图。参照图15，资源选择装置100应用于第一用户设备，资源选择装置100包括发送单元101。
发送单元101，被配置为响应于确定第二用户设备进行数据传输的资源满足资源冲突条件，向第二用户设备发送辅助资源集。
一种实施方式中，资源冲突条件，包括：第二用户设备进行数据传输的资源已经发生资源冲突。
一种实施方式中，第二用户设备进行数据传输的资源已经发生资源冲突，包括：第二用户设备进行数据传输的子信道的接收信号强度指示值，大于接收信号强度阈值。
一种实施方式中，资源冲突条件，包括：第二用户设备进行数据传输的资源即将发生资源冲突。
一种实施方式中，第二用户设备进行数据传输的资源即将发生资源冲突，包括：第二用户设备的直连链路控制信息指示的第一预留资源与第三用户设备的直连链路控制信息指示的第二预留资源之间存在部分重合的资源或者全部重合的资源。
一种实施方式中，发送单元101还被配置为：向第二用户设备发送冲突指示，冲突指示用于指示资源冲突条件。
一种实施方式中，发送单元101基于第一阶段直连链路控制信息或第二阶段直连链路控制信息，向第二用户设备发送辅助资源集和冲突指示中的至少一个。
图16是根据一示例性实施例示出的一种资源选择装置框图。参照图16，资源选择装置200应用于第二用户设备，资源选择装置200包括接收单元201。
接收单元201，用于接收第一用户设备发送的辅助资源集，辅助资源集由第一用户设备确定第二用户设备进行数据传输的资源满足资源冲突条件情况下发送。
一种实施方式中，资源冲突条件，包括：第二用户设备进行数据传输的资源已经发生资源冲突。
一种实施方式中，第二用户设备进行数据传输的资源已经发生资源冲突，包括：第二用户设备进行数据传输的子信道的接收信号强度指示值，大于接收信号强度阈值。
一种实施方式中，资源冲突条件，包括：第二用户设备进行数据传输的资源即将发生资源冲突。
一种实施方式中，第二用户设备进行数据传输的资源即将发生资源冲突，包括：第二用户设备的直连链路控制信息指示的第一预留资源与第三用户设备的直连链路控制信息指示的第二预留资源之间存在重合的资源。
一种实施方式中，接收单元201还被配置为：接收第一用户设备发送的冲突指示，冲突指示用于指示资源冲突条件。
一种实施方式中，资源选择装置200还包括发送单元202，发送单元202被配置为：
响应于接收单元201接收到第一用户设备发送的冲突指示，重传已经发生资源冲突的资源对应传输的数据。
一种实施方式中，资源选择装置200还包括发送单元202，发送单元202被配置为：
响应于接收单元201接收到第一用户设备发送的冲突指示，且接收到的HARQ反馈确认，重传已经发生资源冲突的资源对应传输的数据。
一种实施方式中，资源选择装置200还包括发送单元202，发送单元被配置为：响应 于接收单元201接收到第一用户设备发送的冲突指示，基于辅助资源集，重新选择进行数据传输的资源。
一种实施方式中，接收单元201基于第一阶段直连链路控制信息或第二阶段直连链路控制信息，接收第一用户设备发送的辅助资源集和冲突指示中的至少一个。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图17是根据一示例性实施例示出的一种用于资源选择的装置300的框图。装置300可以上述实施例涉及的第一用户设备或第二用户设备。例如，装置300可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图17，装置300可以包括以下一个或多个组件：处理组件302，存储器304，电力组件306，多媒体组件308，音频组件310，输入/输出(I/O)接口312，传感器组件314，以及通信组件316。
处理组件302通常控制装置300的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件302可以包括一个或多个处理器320来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件302可以包括一个或多个模块，便于处理组件302和其他组件之间的交互。例如，处理组件302可以包括多媒体模块，以方便多媒体组件308和处理组件302之间的交互。
存储器304被配置为存储各种类型的数据以支持在装置300的操作。这些数据的示例包括用于在装置300上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器304可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件306为装置300的各种组件提供电力。电力组件306可以包括电源管理系统，一个或多个电源，及其他与为装置300生成、管理和分配电力相关联的组件。
多媒体组件308包括在所述装置300和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中， 多媒体组件308包括一个前置摄像头和/或后置摄像头。当装置300处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件310被配置为输出和/或输入音频信号。例如，音频组件310包括一个麦克风(MIC)，当装置300处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器304或经由通信组件316发送。在一些实施例中，音频组件310还包括一个扬声器，用于输出音频信号。
I/O接口312为处理组件302和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件314包括一个或多个传感器，用于为装置300提供各个方面的状态评估。例如，传感器组件314可以检测到装置300的打开/关闭状态，组件的相对定位，例如所述组件为装置300的显示器和小键盘，传感器组件314还可以检测装置300或装置300一个组件的位置改变，用户与装置300接触的存在或不存在，装置300方位或加速/减速和装置300的温度变化。传感器组件314可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件314还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件314还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件316被配置为便于装置300和其他设备之间有线或无线方式的通信。装置300可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件316经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件316还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置300可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器304，上述指令可由装置300的处理器320执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
进一步可以理解的是，术语“第一”、“第二”等用于描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开，并不表示特定的顺序或者重要程度。实际上，“第一”、“第二”等表述完全可以互换使用。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。
进一步可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (36)

  1. 一种资源选择方法，其特征在于，应用于第一用户设备，所述资源选择方法包括：
    响应于确定第二用户设备进行数据传输的资源满足资源冲突条件，向所述第二用户设备发送辅助资源集。
  2. 根据权利要求1所述的资源选择方法，其特征在于，所述资源冲突条件，包括：
    第二用户设备进行数据传输的资源已经发生资源冲突。
  3. 根据权利要求2所述的资源选择方法，其特征在于，所述第二用户设备进行数据传输的资源已经发生资源冲突，包括：
    第二用户设备进行数据传输的子信道的接收信号强度指示值，大于接收信号强度阈值。
  4. 根据权利要求1所述的资源选择方法，其特征在于，所述资源冲突条件，包括：
    第二用户设备进行数据传输的资源即将发生资源冲突。
  5. 根据权利要求4所述的资源选择方法，其特征在于，所述第二用户设备进行数据传输的资源即将发生资源冲突，包括：
    第二用户设备的直连链路控制信息指示的第一预留资源与第三用户设备的直连链路控制信息指示的第二预留资源之间存在部分重合的资源或者全部重合的资源。
  6. 根据权利要求1所述的资源选择方法，其特征在于，所述方法还包括：
    向所述第二用户设备发送冲突指示，所述冲突指示用于指示所述资源冲突条件。
  7. 根据权利要求1或6所述的资源选择方法，其特征在于，基于第一阶段直连链路控制信息或第二阶段直连链路控制信息，向所述第二用户设备发送辅助资源集和冲突指示中的至少一个。
  8. 一种资源选择方法，其特征在于，应用于第二用户设备，所述资源选择方法包括：
    接收第一用户设备发送的辅助资源集，所述辅助资源集由所述第一用户设备确定第二用户设备进行数据传输的资源满足资源冲突条件情况下发送。
  9. 根据权利要求8所述的资源选择方法，其特征在于，所述资源冲突条件，包括：
    第二用户设备进行数据传输的资源已经发生资源冲突。
  10. 根据权利要求9所述的资源选择方法，其特征在于，所述第二用户设备进行数据传输的资源已经发生资源冲突，包括：
    第二用户设备进行数据传输的子信道的接收信号强度指示值，大于接收信号强度阈值。
  11. 根据权利要求8所述的资源选择方法，其特征在于，所述资源冲突条件，包括：
    第二用户设备进行数据传输的资源即将发生资源冲突。
  12. 根据权利要求11所述的资源选择方法，其特征在于，所述第二用户设备进行数据传输的资源即将发生资源冲突，包括：
    第二用户设备的直连链路控制信息指示的第一预留资源与第三用户设备的直连链路控制信息指示的第二预留资源之间存在重合的资源。
  13. 根据权利要求8所述的资源选择方法，其特征在于，所述方法还包括：
    接收第一用户设备发送的冲突指示，所述冲突指示用于指示所述资源冲突条件。
  14. 根据权利要求9、10或13所述的资源选择方法，其特征在于，所述方法还包括：
    响应于接收到第一用户设备发送的冲突指示，重传已经发生资源冲突的资源对应传输的数据。
  15. 根据权利要求9、10或13所述的资源选择方法，其特征在于，所述方法还包括：
    响应于接收到第一用户设备发送的冲突指示，且接收到的HARQ反馈确认，重传已经发生资源冲突的资源对应传输的数据。
  16. 根据权利要求11、12或13所述的资源选择方法，其特征在于，所述方法还包括：
    响应于接收到第一用户设备发送的冲突指示，基于所述辅助资源集，重新选择进行数据传输的资源。
  17. 根据权利要求8或13所述的资源选择方法，其特征在于，基于第一阶段直连链路控制信息或第二阶段直连链路控制信息，接收所述第一用户设备发送的辅助资源集和冲突指示中的至少一个。
  18. 一种资源选择装置，其特征在于，应用于第一用户设备，所述资源选择装置包括：
    发送单元，被配置为响应于确定第二用户设备进行数据传输的资源满足资源冲突条件，向所述第二用户设备发送辅助资源集。
  19. 根据权利要求18所述的资源选择装置，其特征在于，所述资源冲突条件，包括：
    第二用户设备进行数据传输的资源已经发生资源冲突。
  20. 根据权利要求19所述的资源选择装置，其特征在于，所述第二用户设备进行数据传输的资源已经发生资源冲突，包括：
    第二用户设备进行数据传输的子信道的接收信号强度指示值，大于接收信号强度阈值。
  21. 根据权利要求18所述的资源选择装置，其特征在于，所述资源冲突条件，包括：
    第二用户设备进行数据传输的资源即将发生资源冲突。
  22. 根据权利要求21所述的资源选择装置，其特征在于，所述第二用户设备进行数据传输的资源即将发生资源冲突，包括：
    第二用户设备的直连链路控制信息指示的第一预留资源与第三用户设备的直连链路控制信息指示的第二预留资源之间存在部分重合的资源或者全部重合的资源。
  23. 根据权利要求18所述的资源选择装置，其特征在于，所述发送单元还被配置为：
    向所述第二用户设备发送冲突指示，所述冲突指示用于指示所述资源冲突条件。
  24. 根据权利要求18或23所述的资源选择装置，其特征在于，所述发送单元基于第一阶段直连链路控制信息或第二阶段直连链路控制信息，向所述第二用户设备发送辅助资源集和冲突指示中的至少一个。
  25. 一种资源选择装置，其特征在于，应用于第二用户设备，所述资源选择装置包括：
    接收单元，用于接收第一用户设备发送的辅助资源集，所述辅助资源集由所述第一用户设备确定第二用户设备进行数据传输的资源满足资源冲突条件情况下发送。
  26. 根据权利要求25所述的资源选择装置，其特征在于，所述资源冲突条件，包括：
    第二用户设备进行数据传输的资源已经发生资源冲突。
  27. 根据权利要求26所述的资源选择装置，其特征在于，所述第二用户设备进行数据传输的资源已经发生资源冲突，包括：
    第二用户设备进行数据传输的子信道的接收信号强度指示值，大于接收信号强度阈值。
  28. 根据权利要求25所述的资源选择装置，其特征在于，所述资源冲突条件，包括：
    第二用户设备进行数据传输的资源即将发生资源冲突。
  29. 根据权利要求28所述的资源选择装置，其特征在于，所述第二用户设备进行数据传输的资源即将发生资源冲突，包括：
    第二用户设备的直连链路控制信息指示的第一预留资源与第三用户设备的直连链路控制信息指示的第二预留资源之间存在重合的资源。
  30. 根据权利要求25所述的资源选择装置，其特征在于，所述接收单元还被配置为：
    接收第一用户设备发送的冲突指示，所述冲突指示用于指示所述资源冲突条件。
  31. 根据权利要求26、27或30所述的资源选择装置，其特征在于，所述装置还包括发送单元，所述发送单元被配置为：
    响应于所述接收单元接收到第一用户设备发送的冲突指示，重传已经发生资源冲突的资源对应传输的数据。
  32. 根据权利要求26、27或30所述的资源选择装置，其特征在于，所述装置还包括 发送单元，所述发送单元被配置为：
    响应于所述接收单元接收到第一用户设备发送的冲突指示，且接收到的HARQ反馈确认，重传已经发生资源冲突的资源对应传输的数据。
  33. 根据权利要求28、29或30所述的资源选择装置，其特征在于，所述装置还包括发送单元，所述发送单元被配置为：
    响应于所述接收单元接收到第一用户设备发送的冲突指示，基于所述辅助资源集，重新选择进行数据传输的资源。
  34. 根据权利要求25或30所述的资源选择装置，其特征在于，所述接收单元基于第一阶段直连链路控制信息或第二阶段直连链路控制信息，接收所述第一用户设备发送的辅助资源集和冲突指示中的至少一个。
  35. 一种资源选择装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求1至7中任意一项所述的资源选择方法，或执行权利要求8至17中任意一项所述的资源选择方法。
  36. 一种非临时性计算机可读存储介质，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行权利要求1至7中任意一项所述的资源选择方法，或执行权利要求8至17中任意一项所述的资源选择方法。
PCT/CN2020/136235 2020-12-14 2020-12-14 资源选择方法、资源选择装置及存储介质 WO2022126338A1 (zh)

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