WO2020063742A1 - 终端直通通信的资源分配方法和装置 - Google Patents

终端直通通信的资源分配方法和装置 Download PDF

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Publication number
WO2020063742A1
WO2020063742A1 PCT/CN2019/108139 CN2019108139W WO2020063742A1 WO 2020063742 A1 WO2020063742 A1 WO 2020063742A1 CN 2019108139 W CN2019108139 W CN 2019108139W WO 2020063742 A1 WO2020063742 A1 WO 2020063742A1
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sci
indicated
node
resource
information
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PCT/CN2019/108139
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English (en)
French (fr)
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沈霞
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中国信息通信研究院
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    • 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
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method and device for allocating resources for terminal through communication, terminal equipment, and storage medium.
  • D2D Device to Device, terminal pass-through
  • Wi-Fi Wireless Fidelity
  • Bluetooth Wireless Fidelity
  • LTE Long Terminal Evolution
  • users are in a distributed network composed of D2D user nodes.
  • Each user node can send and receive signals and has the function of automatic routing (forwarding messages).
  • Users on the network share a portion of their hardware resources, including information processing, storage, and network connectivity capabilities. These shared resources provide services and resources to users in the network and can be directly accessed by users in the network without passing through intermediate entities.
  • 3GPP defines a random selection resource allocation method based on interception.
  • the terminal's pass-through sender first listens to the channel occupancy, and randomly selects resources for data transmission within 20% of the available resources within the time window [T1, T2] based on the intercepted results, and passes the SCI (sidelink control (information, secondary link control information) informs the receiver of the information needed to detect the transmitted data, including resource location, MCS (Modulation and Coding Scheme), and so on.
  • SCI sidelink control (information, secondary link control information) informs the receiver of the information needed to detect the transmitted data, including resource location, MCS (Modulation and Coding Scheme), and so on.
  • this resource allocation mode if the available channel resources monitored by the senders of the two-terminal direct link are the same, and the receivers of the two-terminal direct link are both within the coverage of the two senders, it may be because of the two The sender selects the same channel resource and a transmission collision occurs at the two receivers. In the case where the time window [T1, T2] is relatively small and the transmission packet is relatively large, the probability of causing a resource selection collision is high.
  • Embodiments of the present application provide a method and an apparatus for allocating resources for terminal through communication, a terminal device, and a storage medium, which can reduce data transmission failures caused by resource selection collisions.
  • a method for allocating resources for terminal through communication which is applied to any node in a terminal through network.
  • the method includes:
  • the node as the sending end, sends the secondary link control information SCI carrying the receiving cooperation indication RCI after allocating data transmission resources; wherein the RCI instructs the destination receiving side to perform resource allocation collaboration; waiting for the first preset time, Determining whether conflict information fed back to the SCI is received within the first preset time, and if so, re-allocating resources; otherwise, using the resources indicated by the SCI for data transmission;
  • the node as a receiving end determines whether a resource indicated by the SCI conflicts with a resource indicated by another SCI received within a second preset time when receiving the SCI of the target receiving end as the node and the SCI carries an RCI; If the resources indicated by the SCI do not conflict with resources indicated by other SCIs, the acknowledgement information is sent back to the sender sending the SCI; if the resources indicated by the SCI conflict with resources indicated by other SCIs, the second prediction All sending ends indicated by the SCI and corresponding to the highest terminal pass-through priority received within the set time period feed back acknowledgement information and feedback conflict information to other sending ends.
  • a method for allocating resources for terminal through communication which is applied to any node in a terminal through network.
  • the method includes:
  • the node serves as a sending end, and after allocating data transmission resources, sends the secondary link control information SCI carrying a neighbor cooperation indication NCI, where the NCI is used to instruct surrounding nodes of a destination receiving end to perform resource allocation cooperation; waiting for the first A preset time, determining whether conflict information for the SCI is received within the first preset time, and if so, re-allocating resources; otherwise, using the resources indicated by the SCI for data transmission;
  • the node determines whether a resource indicated by the SCI conflicts with a resource indicated by another SCI of the same destination receiver received within the second preset time when the SCI is received and the SCI carries an NCI. ; If the resource indicated by the SCI does not conflict with the resources indicated by other SCIs, feedback information is sent to the sending end of the SCI; if the resource indicated by the SCI conflicts with the resources indicated by other SCIs, the second preset All transmitters received within the time indicated by the SCI and corresponding to the highest terminal pass-through priority feedback acknowledgement information and feedback conflict information to other senders.
  • a method for allocating resources of a terminal pass-through communication, which is applied to any node in a terminal pass-through network includes:
  • Receiving secondary link control information SCI sent by a sending end where the SCI carries resource allocation cooperation indication information, an identifier of a data transmission resource allocated by the sending end, and a terminal's direct pass priority of the sending end; the resource allocation cooperation indication information is used for Coordinate resource allocation at instructions;
  • a resource allocation device for terminal through communication includes:
  • a receiving module configured to receive secondary link control information SCI sent by a sending end, where the SCI carries resource allocation cooperation indication information, an identifier of a data transmission resource allocated by the sending end, and a terminal direct pass priority of the sending end; the resource The allocation cooperation instruction information is used to instruct resource allocation cooperation;
  • a determining module configured to determine, according to an identifier of a data transmission resource carried by the SCI, whether a conflict occurs between the resource indicated by the SCI and other resources indicated by the SCI received within a preset time;
  • a sending module configured to: if the determining module determines that the resource indicated by the SCI does not conflict with other resources indicated by the SCI, feedback the confirmation information to the sender sending the SCI; if the determining module determines that the SCI indicates If a resource conflicts with other resources indicated by the SCI, the confirmation information is fed back to the sending end corresponding to the highest terminal pass-through priority indicated by all SCIs received within the preset time, and the conflicting information is fed back to the other sending ends.
  • a terminal device includes one or more processors and one or more memories, wherein the one or more memories are used to store at least one computer program instruction, and the one or more processors are configured to call The at least one computer program instruction to execute the method for resource allocation of terminal through communication according to any one of claims 1-11.
  • a non-volatile computer storage medium wherein the computer storage medium stores computer program instructions, the computer program instructions are loaded by a processor and perform resource allocation for terminal through communication according to any one of claims 1-11. method.
  • the resource allocation cooperation of the destination receiving end and / or the resource allocation cooperation of the surrounding nodes of the destination receiving end determine whether the allocated resources collide, and the transmission of high-priority services is preferentially guaranteed for the collision situation. , Can reduce data transmission failures caused by resource selection collisions.
  • FIG. 1 is a schematic flowchart of a resource allocation method for terminal through communication according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of setting a first preset time and a second preset time according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of a format of feedback information for SCI according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a resource allocation method for terminal through communication according to another embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a resource allocation method for terminal through communication according to another embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a resource allocation method for terminal through communication according to another embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a resource allocation apparatus for terminal through communication according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • the resource allocation method for terminal through communication is applied to any node in the terminal through network, and the node may be a terminal device.
  • Any node can have three roles: sender, destination receiver, and surrounding nodes of destination receiver. Through the resource allocation cooperation of the destination receiver and / or the resource allocation cooperation of the surrounding nodes of the destination receiver to identify whether the allocated resources collide, and prioritize the transmission of high-priority services for the collision situation, which can reduce the data transmission caused by the resource selection collision. failure.
  • two resource allocation and cooperation modes are first provided: the first is to perform resource allocation and cooperation for the destination receiver; and the second is to perform resource allocation and cooperation for surrounding nodes of the destination receiver.
  • a resource allocation collaboration performed by the destination receiving end and a resource allocation collaboration performed by surrounding nodes of the destination receiver may be used in combination. Based on this, this embodiment of the present application also provides a third resource allocation collaboration method, and This embodiment describes the three resource allocation and cooperation modes in detail.
  • the embodiments of the present application provide a method for resource allocation and cooperation through a destination receiver.
  • FIG. 1 is a schematic flowchart of a resource allocation method for terminal through communication according to an embodiment of the present application. The method is applied to any node in the terminal pass-through network. The specific steps are:
  • step 101 when any node is used as a sending end, after allocating data transmission resources, sending an SCI carrying receiver coordination indication (receiving cooperation indication); wherein the RCI instructs the destination receiving end to perform resource allocation cooperation; Wait for the first preset time to determine whether conflict information for the SCI feedback is received within the first preset time, and if so, re-allocate resources; otherwise, use the resources indicated by the SCI for data transmission.
  • SCI carrying receiver coordination indication receiving cooperation indication
  • Step 102 When the node serves as the receiving end, when receiving the SCI of the destination receiving end as the node and the SCI carrying the RCI, determine whether the resource indicated by the SCI and other resources indicated by the SCI are received within the second preset time. A conflict occurs; if the resource indicated by the SCI does not conflict with the resources indicated by other SCIs, the acknowledgement information is sent back to the sender sending the SCI; if the resource indicated by the SCI conflicts with the resources indicated by other SCIs, the second All sending ends indicated by the SCI and corresponding to the highest terminal pass-through priority that are received within a preset time feedback the confirmation information, and feed back conflict information to other sending ends.
  • the size of the first preset time (also referred to as the first preset time window) is indicated by the base station or other control equipment through high-level signaling or physical layer signaling, or by means of device writing.
  • the size of the first preset time window is M (M is an integer greater than or equal to 0) time units, where one time unit is a physical / logical time slot, or a physical / logical subframe, or a physical / logical symbol .
  • the starting point of the first preset time window begins with the sending end sending the first symbol or the last symbol of the physical shared control channel (PSCCH) occupied by the SCI. As shown in FIG. 2, the starting point of the first preset time window starts from the last symbol of the PSCCH occupied by the SCI sent by the transmitting end.
  • PSCCH physical shared control channel
  • the size and starting point of the second preset time are indicated by the base station or other control devices through high-level signaling or physical layer signaling, or written by the device. Way to get.
  • the size of the second preset time window is N (N is an integer greater than or equal to 0) time units, where one time unit is a physical / logical time slot, or a physical / logical subframe, or a physical / logical symbol .
  • the size of the second preset time window is 4 physical subframes, which periodically appear.
  • the initial starting point is the first subframe in the first system frame after the terminal device is synchronized after powering on.
  • the SCI carrying the RCI may be sent through broadcast, so that a node other than the destination receiver can also receive the SCI, and record the identifier of the resource indicated by the SCI, so as to select the resource as the node. Reference.
  • the identifier of the destination receiver of the sender is specified in the SCI, so that each receiver receiving the SCI determines whether the node is the destination receiver, and then determines whether the node is the destination receiver.
  • a receiving end may serve as a destination receiving end to receive SCIs sent by multiple sending ends within a preset time (for example, a second preset time). For each SCI received within the preset time, determine whether the resources indicated by each SCI are When a conflict occurs, the determination result may be that all resources indicated by the SCI conflict, or all resources indicated by the SCI do not conflict, or some resources indicated by the SCI conflict, and another part of the resources indicated by the SCI do not conflict.
  • the embodiments of the present application respectively provide the processing procedures for conflicts and non-conflicts of resources indicated by the SCI: for the SCIs where the indicated resources do not conflict, feedback information is sent to the sender sending the SCIs; for the indicated resources, conflicts occur
  • the SCI sends feedback confirmation information to all senders corresponding to the highest terminal pass-through priority indicated by the SCI, and feedback conflict information to other senders.
  • the sending end identification (ID) is specified, and it can be sent through one piece of feedback information.
  • FIG. 3 is a schematic diagram of a format of feedback information for SCI in an embodiment of the present application.
  • a receiver receives SCIs sent by N senders in a preset period, feedbacks a feedback message for N senders, and gives the sender ID and the sender ID for each sender in the feedback information. Confirmation or non-confirmation information (such as ACK or NACK information) corresponding to the ID, so that N senders can determine whether acknowledgement information or non-confirmation information (collision information) is fed back to the node.
  • Confirmation or non-confirmation information such as ACK or NACK information
  • An embodiment of the present application further provides a resource allocation method for a destination receiver and surrounding nodes to perform resource allocation cooperation.
  • FIG. 4 is a schematic flowchart of a resource allocation method for terminal through communication according to another embodiment of the present application. The method is applied to any node in the terminal pass-through network. The specific steps are:
  • Step 301 When any node is used as a transmitting end, after allocating data transmission resources, send an SCI carrying RCI and NCI (neighbor cooperation indication), where the RCI instructs the destination receiving end to perform resource allocation.
  • the NCI is used to instruct the surrounding nodes of the destination receiver to perform resource allocation collaboration; wait for a first preset time to determine whether conflict information for the SCI feedback is received within the first preset time, and if so, restart the resource Allocation; otherwise, use the resources indicated by the SCI for data transmission.
  • the sending end may be a broadcast sending or a multicast sending, that is, the destination receiving end and the surrounding nodes of the destination receiving end are designated.
  • step 302 when the node acts as a receiving end, when receiving the SCI of the destination receiving end as the node and the SCI carrying the RCI, it is determined whether the resource indicated by the SCI and other resources indicated by the SCI are received within the second preset time. A conflict occurs; if the resource indicated by the SCI does not conflict with the resources indicated by other SCIs, the acknowledgement information is sent back to the sender sending the SCI; if the resource indicated by the SCI conflicts with the resources indicated by other SCIs, the second All sending ends indicated by the SCI and corresponding to the highest terminal pass-through priority feedback confirmation information are received within a preset time, feedback information is sent to other sending ends, and step 304 is performed.
  • the destination receiving end when the destination receiving end receives the SCI and determines that the RCI is carried in the SCI, it performs resource allocation cooperation on the resources indicated by the SCI.
  • Step 303 When the node is used as any surrounding node of the destination receiver, when the SCI is received and the SCI carries NCI, it is determined that the resources indicated by the SCI are the same as those received by other SCI receivers of the same destination received within the second preset time. Whether the resource conflicts; if the resource indicated by the SCI does not conflict with the resources indicated by other SCIs, feedback information is sent to the sending end of the SCI; if the resource indicated by the SCI conflicts with the resources indicated by other SCIs, All the senders corresponding to the highest terminal pass-through priority indicated by the SCI and received in the second preset time feedback the confirmation information, and feed back conflict information to other senders.
  • the destination receiver and any surrounding nodes of the destination receiver determine whether they want to perform resource allocation cooperation on the resources indicated by the SCI according to the specific values of the NCI and RCI indications carried by the SCI, that is, detect the Whether conflicts occur between the resources indicated by the SCI and other resources indicated by the SCI within the second preset time, and conflict information or confirmation information for the SCI is sent to the sending end according to the detection result.
  • the NCI indication value is 0, it means that when the surrounding nodes of the destination receiver receive the SCI, they do not need to perform resource allocation and cooperation on the resources indicated by the SCI, and do not need to report conflicts to the sender that sent the SCI. Message or confirmation message.
  • the indication value of NCI when the indication value of NCI is 1, it means that the surrounding nodes of the destination receiving end need to perform resource allocation and cooperation on the resources indicated by the SCI when receiving the SCI, that is, to monitor whether there is any If the resources indicated by the SCI conflict with other resources indicated by the SCI, if there are no other resources indicated by the SCI that conflict with the resources indicated by the SCI, or there are other resources indicated by the SCI that conflict with the resources indicated by the SCI, but the SCI If the indicated terminal has the highest pass-through priority, the acknowledgement information is sent back to the sender of the SCI.
  • the conflicting information is fed back to the sender that sent the SCI.
  • the indication value of RCI it means that when the destination of the SCI indication receives the SCI, it does not need to perform resource allocation cooperation on the resources indicated by the SCI, and it does not need to send to the SCI.
  • the terminal feedbacks conflict information or confirmation information.
  • the indication value of RCI when the indication value of RCI is 1, it indicates that when the destination receiving end of the SCI instruction receives the SCI, it needs to perform resource allocation cooperation on the resources indicated by the SCI, that is, to monitor whether there is any If other resources indicated by the SCI conflict with the resources indicated by the SCI, if there are no other resources indicated by the SCI that conflict with the resources indicated by the SCI, or there are other resources indicated by the SCI that conflict with the resources indicated by the SCI, but the The terminal direct link priority indicated by the SCI is the highest, and feedback information is sent to the sender of the SCI. If there are other resources indicated by the SCI that conflict with the resources indicated by the SCI, but the terminal direct link priority indicated by the SCI is not the highest, Then, the conflicting information is fed back to the sending end that sent the SCI.
  • any node when any node receives the SCI, it is determined whether the node is a surrounding node of the destination receiving end of the SCI according to the identification of the destination receiving end carried by the SCI. If it is a surrounding node of the destination receiving end and determines whether the SCI carries the If the indication value of NCI is 1, resource allocation cooperation is performed.
  • the identification of the destination receiving end will be given in the SCI in preparation for each node receiving the SCI to determine its role: the destination receiving end, the surrounding nodes of the destination receiving end, Other nodes.
  • Step 304 After the node sends the SCI carrying the RCI and NCI as the sender, wait for the first preset time to determine whether the conflict information for the SCI is received in the first preset time, and if so, restart the resource. Allocation; otherwise, use the resources indicated by the SCI for data transmission.
  • a receiving end may serve as the destination receiving end or the surrounding nodes of the destination receiving end within a preset time (such as a second preset time) to receive SCIs sent by multiple senders. For each SCI received within the preset time, determine Whether the resources indicated by each SCI conflict, the determination result may be that all resources indicated by SCI conflict, or all resources indicated by SCI do not conflict, or some resources indicated by SCI conflict, another part of resources indicated by SCI No conflict.
  • the embodiments of the present application respectively provide the processing procedures for conflicts and non-conflicts of resources indicated by the SCI: for the SCIs where the indicated resources do not conflict, feedback information is sent to the sender sending the SCIs; for the indicated resources, conflicts occur
  • the SCI sends feedback confirmation information to all senders corresponding to the highest terminal pass-through priority indicated by the SCI, and feedback conflict information to other senders.
  • the sending terminal ID is specified, and it can be sent through one piece of feedback information.
  • the format of the feedback information for SCI is shown in Figure 3.
  • An embodiment of the present application further provides a resource allocation method for resource allocation and cooperation through surrounding nodes of a destination receiving end.
  • FIG. 5 is a schematic flowchart of a resource allocation method for terminal through communication according to another embodiment of the present application. The method is applied to any node in the terminal pass-through network. The specific steps are:
  • Step 401 When the node is used as a sending end, after allocating data transmission resources, send a SCI carrying NCI, where the NCI is used to instruct surrounding nodes of the destination receiving end to perform resource allocation cooperation; wait for a first preset time, It is determined whether conflict information fed back to the SCI is received within the first preset time, and if so, resource allocation is re-performed; otherwise, the resource indicated by the SCI is used for data transmission.
  • step 402 when the node is used as any surrounding node of the destination receiver, when the SCI is received and the SCI carries NCI, it is determined that the resources indicated by the SCI are the same as those received by other SCI receivers of the same destination received within the second preset time. Whether the resource conflicts; if the resource indicated by the SCI does not conflict with the resources indicated by other SCIs, feedback information is sent to the sending end of the SCI; if the resource indicated by the SCI conflicts with the resources indicated by other SCIs, All the senders corresponding to the highest terminal pass-through priority indicated by the SCI and received in the second preset time feedback the confirmation information, and feed back conflict information to other senders.
  • the SCI may be transmitted by broadcast or multicast, and the sent SCI carries the ID of the destination receiver and the IDs of the surrounding nodes of the destination receiver.
  • any node determines that the SCI carries the ID of the node and the node is not the destination receiver, it is determined that the node is a surrounding node of the destination receiver.
  • This node as any surrounding node of the destination receiver, specifies the sender ID when sending conflict information to multiple senders, and sends it through a piece of feedback information.
  • sender ID when sending conflict information to multiple senders, and sends it through a piece of feedback information.
  • the surrounding nodes of the destination receiver are instructed to perform resource allocation and cooperation, which can prevent the destination receiver from listening to the SCI and causing conflicts between the resources indicated by the SCI and other resources indicated by the SCI.
  • the sender sends a SCI and the resource indicated by the SCI conflicts with other resources indicated by the SCI. If the destination receiver is sending data at this time, the SCI cannot be monitored, which makes it impossible to allocate resources to the resource indicated by the SCI. Collaboration, which may cause data transmission failures caused by resource selection collisions.
  • FIG. 6 is a schematic flowchart of a resource allocation method for terminal through communication according to another embodiment of the present application. The method is applied to any node in the terminal through network, and specifically includes the following steps:
  • Step 601 Receive secondary link control information SCI sent by a sending end, where the SCI carries resource allocation cooperation indication information, an identifier of a data transmission resource allocated by the sending end, and a terminal direct pass priority of the sending end; the resource allocation cooperation indication information is used for Instructing resource allocation collaboration;
  • Step 602 Determine whether a resource indicated by the SCI conflicts with a resource indicated by another SCI received within a preset time according to an identifier of a data transmission resource carried by the SCI;
  • Step 603 if the resource indicated by the SCI does not conflict with other resources indicated by the SCI, feedback information is sent to the sender that sent the SCI;
  • step 604 if the resource indicated by the SCI conflicts with other resources indicated by the SCI, the confirmation information is fed back to the sending end corresponding to the highest terminal pass-through priority indicated by all SCIs received within the preset time, and the other sending ends are fed back. Conflict information.
  • the method further includes: after the SCI sends the SCI, waiting for the first preset time to determine whether conflict information for the SCI is received in the first preset time, and if so, re-resource Allocation; otherwise, use the resources indicated by the SCI for data transmission.
  • the SCI further carries the ID of the destination receiver and the IDs of the surrounding nodes of the destination receiver.
  • the resource allocation cooperation indication information carried by the SCI includes RCI.
  • the method further includes: determining whether the node is the destination receiving end according to the ID of the destination receiving end carried by the SCI and the IDs of the surrounding nodes of the destination receiving end, and determining the RCI indication value. If the local node is the destination receiver and the RCI indication value is a preset first indication value, step 602 is performed.
  • the SCI may further carry the ID of the destination receiver and the IDs of the surrounding nodes of the destination receiver.
  • the resource allocation cooperation indication information carried by the SCI includes NCI.
  • the method further includes: determining whether the node is a surrounding node of the destination receiving end according to the ID of the destination receiving end carried by the SCI and the ID of the surrounding node of the destination receiving end, and determining the NCI indication value. If this node is a surrounding node of the destination receiver and the NCI indication value is a preset second indication value, step 602 is performed.
  • the resource allocation cooperation indication information carried by the SCI includes RCI and NCI; where the RCI indication value is the first indication value, the destination receiver is instructed to perform resource allocation collaboration; the NCI is the second indication value , The surrounding nodes of the destination receiver are instructed to perform resource allocation cooperation.
  • the RCI indication value when the RCI indication value is 1, it indicates that when the destination receiving the SCI indication receives the SCI, it needs to perform resource allocation cooperation on the resources indicated by the SCI; when the RCI indication value is 0 , It means that when the destination receiving the SCI instruction receives the SCI, it does not need to perform resource allocation and cooperation on the resources indicated by the SCI.
  • the NCI indication value when the NCI indication value is 1, it indicates that the surrounding nodes of the destination receiving end need to perform resource allocation and cooperation on the resources indicated by the SCI when receiving the SCI.
  • the NCI indication value When the NCI indication value is 0, it indicates the surroundings of the destination receiving end. When a node receives the SCI, it does not need to perform resource allocation and cooperation on the resources indicated by the SCI.
  • FIG. 7 is a schematic structural diagram of a resource allocation apparatus for terminal through communication according to an embodiment of the present application.
  • the device includes:
  • the receiving module 701 is configured to receive secondary link control information SCI sent by a sending end, where the SCI carries resource allocation cooperation indication information, an identifier of a data transmission resource allocated by the sending end, and a terminal pass-through priority of the sending end;
  • the resource allocation cooperation indication information is used to instruct resource allocation collaboration;
  • a determining module 702 configured to determine, according to an identifier of a data transmission resource carried by the SCI, whether a conflict occurs between the resource indicated by the SCI and other resources indicated by the SCI received within a preset time;
  • a sending module 703 is configured to feed back confirmation information to a sending end that sends the SCI if the determining module 702 determines that the resource indicated by the SCI does not conflict with other resources indicated by the SCI; if the determining module 702 determines the If the resource indicated by the SCI conflicts with other resources indicated by the SCI, the acknowledgment information is fed back to the sending end corresponding to the highest terminal pass-through priority indicated by all SCIs received within the preset time, and the conflicting information is fed back to other sending ends.
  • the SCI further carries the ID of the destination receiving end and the IDs of the surrounding nodes of the destination receiving end
  • the resource allocation cooperation indication information carried by the SCI includes a reception cooperation indication RCI.
  • the determining module is further configured to determine whether the node is the destination receiving end according to the ID of the destination receiving end carried by the SCI and the IDs of the surrounding nodes of the destination receiving end after the receiving module receives the SCI sent by the sending end, and determine the RCI indication value. ; If the node is the destination receiver and the RCI indication value is a preset first indication value, perform the step of determining whether a resource indicated by the SCI conflicts with a resource indicated by another SCI received within a preset time.
  • the SCI further carries the ID of the destination receiver and the IDs of the surrounding nodes of the destination receiver.
  • the resource allocation cooperation indication information carried by the SCI includes the neighbor cooperation indicator NCI.
  • the determining module is further configured to, after the receiving module receives the SCI sent by the sending end, determine whether the node is a surrounding node of the destination receiving end according to the ID of the destination receiving end and the surrounding node ID carried by the SCI, and determine the NCI indication Value; if this node is a surrounding node of the destination receiver and the NCI indication value is a preset second indication value, execute the determination to determine whether a resource indicated by the SCI conflicts with other SCI indicated resources received within a preset time. A step of.
  • the resource allocation cooperation indication information carried by the SCI includes RCI and NCI; wherein when the RCI indication value is the first indication value, the destination receiver is instructed to perform resource allocation collaboration; when NCI is the second indication value, Instruct the surrounding nodes of the destination receiver to perform resource allocation cooperation.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • the terminal device in this embodiment as shown in FIG. 8 may include: one or more processors 801, one or more input devices 802, one or more output devices 803, and one or more memories 804.
  • the processor 801, the input device 802, the output device 803, and the memory 804 are connected through a bus 805.
  • the memory 804 is configured to store a computer program, where the computer program includes at least one computer program instruction, and the processor 801 is configured to call and execute the computer program instruction stored in the memory 804 to execute the terminal through communication described in the foregoing embodiment. Method of resource allocation.
  • the processor 801 may be a Central Processing Unit (CPU), and the processor 801 may also be another general-purpose processor, that is, a microprocessor or any conventional processor.
  • the memory 804 may include any computer storage medium such as a read-only memory and a random access memory, and provides instructions and data to the processor 801.
  • the processor 801 loads and executes the computer program instructions stored in the computer storage medium, so as to execute the method for resource allocation of terminal through communication as described in the above embodiment.
  • the waiting time of the sending end is uniformly set to the first preset time
  • the waiting time of the receiving end is uniformly set to the second preset time.
  • the waiting time set by each node may be set according to the actual situation. Application is determined, this application does not limit this.
  • the first preset time and the second preset time may be the same or different.
  • the embodiments of the present application determine whether the resources allocated by the sending end collide through the resource allocation collaboration of the destination receiving end and / or the resource allocation collaboration of the surrounding nodes of the destination receiving end, and preferentially guarantee the transmission of high-priority services for the collision situation. , Which can reduce data transmission failures caused by resource selection collisions.

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Abstract

本申请实施例提供了一种终端直通通信的资源分配方法，应用于终端直通网络中的任一节点，包括：接收发送端发送的副链路控制信息SCI，该SCI携带资源分配协作指示信息、发送端分配的数据传输资源的标识、以及发送端的终端直通优先级；资源分配协作指示信息用于指示进行资源分配协作；根据SCI携带的数据传输资源的标识，确定SCI指示的资源与预设时间内接收到的其它SCI指示的资源是否发生冲突；如果未发生冲突，则向发送该SCI的发送端反馈确认信息；如果发生冲突，则向该预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。

Description

终端直通通信的资源分配方法和装置
本申请要求于2018年9月29日提交中国专利局、申请号为201811146634.2、发明名称为“一种终端直通通信的资源分配方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，特别涉及一种终端直通通信的资源分配方法和装置、终端设备及存储介质。
背景技术
D2D(Device to Device，终端直通)技术是指借助Wi-Fi、Bluetooth、LTE(Long Term Evolution)-D2D技术实现终端设备之间的直接通信。在传统的通信系统中，终端设备之间的通信都是由无线通信运营商的基站进行控制，终端设备无法直接进行语音或数据通信。这是因为终端设备的能力和无线通信的信道资源都很有限。
在未来5G系统中，用户处在由D2D用户节点组成的分布式网络中，每个用户节点都能发送和接收信号，并具有自动路由(转发消息)的功能。网络中的用户共享它们所拥有的一部分硬件资源，包括信息处理、存储和网络连接能力等。这些共享资源向网络中的用户提供服务和资源，能被网络中的用户直接访问而不需要经过中间实体。
对于终端直通通信的分布式资源分配，3GPP定义了一种基于侦听的随机选择资源分配方式。在这种资源分配方式下，终端直通发送端首先侦听信道占用情况，基于侦听结果在时间窗[T1,T2]内在可用资源的20％中随机选择资源进行数据传输，并通过SCI(sidelink control information，副链路控制信息)告知接收端检测传输数据所需的信息，包括资源位置、 MCS(Modulation and Coding Scheme，调制与编码策略)等。
在该资源分配方式下，如果两个终端直通链路的发送端侦听的可用信道资源相同、并且两个终端直通链路的接收端均在两个发送端的覆盖范围内，则可能因为两个发送端选择了相同的信道资源而导致在两个接收端发生传输碰撞。在时间窗[T1,T2]比较小且传输包比较大的情况下，引发资源选择碰撞的概率较高。
发明内容
本申请实施例提供一种终端直通通信的资源分配方法和装置、终端设备及存储介质，能够减少资源选择碰撞引发的数据传输失败。
本申请实施例的技术方案是这样实现的：
一种终端直通通信的资源分配方法，应用于终端直通网络中的任一节点上，该方法包括：
所述节点作为发送端，在分配数据传输的资源后，发送携带接收协作指示RCI的副链路控制信息SCI；其中，所述RCI指示目的接收端进行资源分配协作；等待第一预设时间，确定第一预设时间内是否接收到针对所述SCI反馈的冲突信息，如果是，重新进行资源分配；否则，使用所述SCI指示的资源进行数据传输；
所述节点作为接收端，在接收到目的接收端为本节点的SCI且SCI携带RCI时，确定所述SCI指示的资源与第二预设时间内接收到的其它SCI指示的资源是否发生冲突；如果所述SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；如果所述SCI指示的资源与其它SCI指示的资源发生冲突，则向第二预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
一种终端直通通信的资源分配方法，应用于终端直通网络中的任一节点上，该方法包括：
所述节点作为发送端，在分配数据传输的资源后，发送携带邻居协作指示NCI的副链路控制信息SCI，其中，所述NCI用于指示目的接收端的周围节点进行资源分配协作；等待第一预设时间，确定在第一预设时间内是否接收到针对所述SCI反馈的冲突信息，如果是，重新进行资源分配；否则，使用所述SCI指示的资源进行数据传输；
所述节点作为目的接收端的任一周围节点，在接收到SCI且SCI携带NCI时，确定该SCI指示的资源与第二预设时间内接收到的相同目的接收端的其它SCI指示的资源是否发生冲突；如果该SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；如果该SCI指示的资源与其它SCI指示的资源发生冲突，则向第二预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
一种终端直通通信的资源分配方法，应用于终端直通网络中的任一节点，该方法包括：
接收发送端发送的副链路控制信息SCI，所述SCI携带资源分配协作指示信息、所述发送端分配的数据传输资源的标识、以及发送端的终端直通优先级；所述资源分配协作指示信息用于指示进行资源分配协作；
根据所述SCI携带的数据传输资源的标识，确定所述SCI指示的资源与预设时间内接收到的其它SCI指示的资源是否发生冲突；
如果所述SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；
如果所述SCI指示的资源与其它SCI指示的资源发生冲突，则向所 述预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
一种终端直通通信的资源分配装置，该装置包括：
接收模块，用于接收发送端发送的副链路控制信息SCI，所述SCI携带资源分配协作指示信息、所述发送端分配的数据传输资源的标识、以及发送端的终端直通优先级；所述资源分配协作指示信息用于指示进行资源分配协作；
确定模块，用于根据所述SCI携带的数据传输资源的标识，确定所述SCI指示的资源与预设时间内接收到的其它SCI指示的资源是否发生冲突；
发送模块，用于如果所述确定模块确定所述SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；如果所述确定模块确定所述SCI指示的资源与其它SCI指示的资源发生冲突，则向所述预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
一种终端设备，包括一个或多个处理器和一个或多个存储器，其中，所述一个或多个存储器用于存储至少一条计算机程序指令，所述一个或多个处理器被配置用于调用所述至少一条计算机程序指令，以执行如权利要求1-11任一项所述的终端直通通信的资源分配方法。
一种非易失性计算机存储介质，所述计算机存储介质存储有计算机程序指令，所述计算机程序指令由处理器加载并执行如权利要求1-11任一项所述的终端直通通信的资源分配方法。
由上面的技术方案可知，本申请中通过目的接收端的资源分配协作，和/或目的接收端的周围节点的资源分配协作确定已分配的资源是否发生碰撞，针对碰撞情况优先保证高优先级业务的传输，能够减少资源选 择碰撞引发的数据传输失败。
附图简要说明
图1为本申请实施例的终端直通通信的资源分配方法的流程示意图；
图2为本申请实施例的第一预设时间和第二预设时间的设置示意图；
图3为本申请实施例的针对SCI的反馈信息的格式示意图；
图4为本申请另一实施例的终端直通通信的资源分配方法的流程示意图；
图5为本申请另一实施例的终端直通通信的资源分配方法的流程示意图；
图6为本申请另一实施例的终端直通通信的资源分配方法的流程示意图；
图7为本申请实施例的终端直通通信的资源分配装置的结构示意图；
图8为本申请实施例的一种终端设备的结构示意图。
具体实施方式
为了使本申请的技术方案及优点更加清楚明白，下面结合附图并举实施例，对本申请的技术方案进行详细说明。
本申请实施例中提供的终端直通通信的资源分配方法，应用于终端直通网络中的任一节点上，所述节点可以为终端设备。任一节点可以有三种角色：发送端、目的接收端、目的接收端的周围节点。通过目的接收端的资源分配协作，和/或目的接收端的周围节点的资源分配协作识 别已分配的资源是否发生碰撞，针对碰撞情况优先保证高优先级业务的传输，能够减少资源选择碰撞引发的数据传输失败。
本申请实施例中首先给出两种资源分配协作方式：第一种为目的接收端进行资源分配协作；第二种为目的接收端的周围节点进行资源分配协作。
本申请另一实施例中，目的接收端进行资源分配协作同目的接收端的周围节点进行资源分配协作可以结合使用，基于此，本申请实施例还提供了第三种资源分配协作方式，并通过三个实施例来详细描述这三种资源分配协作方式。
本申请实施例提供了一种通过目的接收端进行资源分配协作的方法。
参见图1，图1为本申请实施例的终端直通通信的资源分配方法的流程示意图。该方法应用于终端直通网络中的任一节点，具体步骤为：
步骤101，当该任一节点作为发送端时，在分配数据传输的资源后，发送携带RCI(receiver cooperation indication，接收协作指示)的SCI；其中，所述RCI指示目的接收端进行资源分配协作；等待第一预设时间，确定第一预设时间内是否接收到针对所述SCI反馈的冲突信息，如果是，重新进行资源分配；否则，使用所述SCI指示的资源进行数据传输。
步骤102，当该节点作为接收端时，在接收到目的接收端为本节点的SCI且SCI携带RCI时，确定该SCI指示的资源与第二预设时间内接收到的其它SCI指示的资源是否发生冲突；如果该SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；如果该SCI指示的资源与其它SCI指示的资源发生冲突，则向第二预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
在本申请实施例中，第一预设时间(也称为第一预设时间窗)的大小由基站或者其它控制设备通过高层信令或者物理层信令进行指示，或者通过设备写入的方式获取。第一预设时间窗的大小为M(M为大于或等于0的整数)个时间单元，其中一个时间单元为一个物理/逻辑时隙、或者一个物理/逻辑子帧、或者一个物理/逻辑符号。第一预设时间窗的起点从发送端发送SCI占用的物理共享控制信道(PSCCH)的第一个符号或者最后一个符号开始。如图2所示，第一预设时间窗的起点从发送端发送SCI占用的PSCCH的最后一个符号开始。
在本申请实施例中，第二预设时间(也称为第二预设时间窗)的大小以及起点由基站或者其它控制设备通过高层信令或者物理层信令进行指示，或者通过设备写入的方式获取。第二预设时间窗的大小为N(N为大于或等于0的整数)个时间单元，其中一个时间单元为一个物理/逻辑时隙、或者一个物理/逻辑子帧、或者一个物理/逻辑符号。如图2所示，第二预设时间窗的大小为4个物理子帧，周期性的出现，初始起点为终端设备开机同步后的第一个系统帧里的第一个子帧。
在本申请实施例中，携带RCI的SCI可以通过广播发送，这样目的接收端之外的节点也可以接收到所述SCI，并记录所述SCI所指示的资源的标识，从而作为该节点选择资源的参考。
在本申请实施例中，SCI通过广播发送时，会在SCI中指明该发送端的目的接收端的标识，以使接收到该SCI的各接收端确定本节点是否为目的接收端，进而确定本节点是要进行资源分配协作，还是只存储SCI所指示的资源的标识以便作为资源选择分配的参考。
一个接收端可能作为目地接收端在预设时间(例如第二预设时间)内接收到多个发送端发送的SCI，针对该预设时间内接收到的各SCI，确定各SCI指示的资源是否发生冲突，确定结果可能是所有SCI指示的 资源都发生冲突，或所有SCI指示的资源都不发生冲突，也可能是一部分SCI指示的资源发生冲突，另一部分SCI指示的资源不发生冲突。
本申请实施例中分别给出了SCI指示的资源发生冲突和不发生冲突的处理过程：针对指示的资源未发生冲突的SCI，向发送该SCI的发送端反馈确认信息；针对指示的资源发生冲突的SCI，向预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
针对确定结果，向多个发送端反馈确认信息时，指明发送端标识(ID)，通过一条反馈信息发送即可。
参见图3，图3为本申请实施例中针对SCI的反馈信息的格式示意图。
在图3中，一个接收端在预设周期中接收到N个发送端发送的SCI，针对N个发送端反馈一条反馈信息，并在反馈信息中针对每个发送端分别给出发送端ID以及对应该ID的确认或非确认信息(例如ACK或NACK信息)，以使N个发送端能够判断出反馈给本节点的是确认信息还是非确认信息(冲突信息)。
本申请实施例还提供了一种目的接收端及其周围节点共同进行资源分配协作的资源分配方法。
参见图4，图4为本申请另一实施例的终端直通通信的资源分配方法的流程示意图。该方法应用于终端直通网络中的任一节点，具体步骤为：
步骤301，当该任一节点作为发送端时，在分配数据传输的资源后，发送携带RCI和NCI(neighbor cooperation indication，邻居协作指示)的SCI；其中，所述RCI指示目的接收端进行资源分配协作，所述NCI用于指示目的接收端的周围节点进行资源分配协作；等待第一预设时 间，确定第一预设时间内是否接收到针对所述SCI反馈的冲突信息，如果是，重新进行资源分配；否则，使用所述SCI指示的资源进行数据传输。
本步骤中发送端发送携带RCI和NCI的SCI时，可以是广播发送，也可以是组播发送，即指定目的接收端以及目的接收端的周围节点。
当广播发送SCI时，目的接收端以及目的接收端的周围节点之外的节点接收到该SCI时，不进行资源分配协作，仅记录该SCI所指示的资源，为该节点后续分配资源作参考。
步骤302，当该节点作为接收端时，在接收到目的接收端为本节点的SCI且SCI携带RCI时，确定该SCI指示的资源与第二预设时间内接收到的其它SCI指示的资源是否发生冲突；如果该SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；如果该SCI指示的资源与其它SCI指示的资源发生冲突，则向第二预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息，并执行步骤304。
在本步骤中，目的接收端接收到SCI时，确定SCI中携带了RCI，则针对该SCI指示的资源进行资源分配协作。
步骤303，当该节点作为目的接收端的任一周围节点时，在接收到SCI且SCI携带NCI时，确定该SCI指示的资源与第二预设时间内接收到的相同目的接收端的其它SCI指示的资源是否发生冲突；如果该SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；如果该SCI指示的资源与其它SCI指示的资源发生冲突，则向第二预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
在本申请实施例中，目的接收端和目的接收端的任一周围节点根据 接收到的SCI携带的NCI和RCI指示的具体值确定自身是否要对该SCI指示的资源进行资源分配协作，即检测该SCI指示的资源与第二预设时间内接收到的其它SCI指示的资源是否发生冲突并根据检测结果向发送端发送针对该SCI的冲突信息或者确认信息。例如，当NCI的指示值为0时，则表示目的接收端的周围节点在接收到该SCI时，不需对该SCI指示的资源进行资源分配协作，也不需要向发送该SCI的发送端反馈冲突信息或者确认信息。又例如，当NCI的指示值为1时，则表示目的接收端的周围节点在接收到该SCI时，需要对该SCI指示的资源进行资源分配协作，即在第二预设时间内监听是否有与该SCI指示的资源发生冲突的其它SCI指示的资源，如果没有与该SCI指示的资源发生冲突的其它SCI指示的资源，或者有与该SCI指示的资源发生冲突的其它SCI指示的资源但该SCI指示的终端直通优先级最高，则向发送该SCI的发送端反馈确认信息，如果有与该SCI指示的资源发生冲突的其它SCI指示的资源但该SCI指示的终端直通优先级不是最高的，则向发送该SCI的发送端反馈冲突信息。又例如，当RCI的指示值为0时，则表示该SCI指示的目的接收端在接收到该SCI时，不需对该SCI指示的资源进行资源分配协作，也不需要向发送该SCI的发送端反馈冲突信息或者确认信息。又例如，当RCI的指示值为1时，则表示该SCI指示的目的接收端接收到该SCI时，需要对该SCI指示的资源进行资源分配协作，即在第二预设时间内监听是否有与该SCI指示的资源发生冲突的其它SCI指示的资源，如果没有与该SCI指示的资源发生冲突的其它SCI指示的资源，或者有与该SCI指示的资源发生冲突的其它SCI指示的资源但该SCI指示的终端直通优先级最高，则向发送该SCI的发送端反馈确认信息，如果有与该SCI指示的资源发生冲突的其它SCI指示的资源但该SCI指示的终端直通优先级不是最高的，则向发送该SCI的发送端反馈冲突信息。
在本申请实施例中，任一节点接收到SCI时，根据SCI携带的目的接收端的标识确定本节点是否为该SCI的目的接收端的周围节点，如果是目的接收端的周围节点且确定该SCI中携带的NCI的指示值为1，则进行资源分配协作。
无论在SCI中是否指定每个接收端的标识，但是一定会在该SCI中给出目的接收端的标识，以备接收到该SCI的各节点确定自身的角色：目的接收端、目的接收端的周围节点，其他节点。
步骤304，当该节点作为发送端发送携带RCI和NCI的SCI之后，等待第一预设时间，确定第一预设时间内是否接收到针对所述SCI反馈的冲突信息，如果是，重新进行资源分配；否则，使用所述SCI指示的资源进行数据传输。
一个接收端可能作为目地接收端或目的接收端的周围节点在预设时间(例如第二预设时间)内接收到多个发送端发送的SCI，针对该预设时间内接收到的各SCI，确定各SCI指示的资源是否发生冲突，确定结果可能是所有SCI指示的资源都发生冲突，或所有SCI指示的资源都不发生冲突，也可能是一部分SCI指示的资源发生冲突，另一部分SCI指示的资源不发生冲突。
本申请实施例中分别给出了SCI指示的资源发生冲突和不发生冲突的处理过程：针对指示的资源未发生冲突的SCI，向发送该SCI的发送端反馈确认信息；针对指示的资源发生冲突的SCI，向预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
针对确定结果，向多个发送端反馈确认信息时，指明发送终端ID，通过一条反馈信息发送即可。针对SCI的反馈信息的格式如图3所示。
本申请实施例还提供了一种通过目的接收端的周围节点进行资源分 配协作的资源分配方法。
参见图5，图5为本申请另一实施例的终端直通通信的资源分配方法的流程示意图。该方法应用于终端直通网络中的任一节点，具体步骤为：
步骤401，当该节点作为发送端时，在分配数据传输的资源后，发送携带NCI的SCI，其中，所述NCI用于指示目的接收端的周围节点进行资源分配协作；等待第一预设时间，确定在第一预设时间内是否接收到针对所述SCI反馈的冲突信息，如果是，重新进行资源分配；否则，使用所述SCI指示的资源进行数据传输。
步骤402，当该节点作为目的接收端的任一周围节点时，在接收到SCI且SCI携带NCI时，确定该SCI指示的资源与第二预设时间内接收到的相同目的接收端的其它SCI指示的资源是否发生冲突；如果该SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；如果该SCI指示的资源与其它SCI指示的资源发生冲突，则向第二预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
本实施例中可以采用广播或组播发送该SCI，在发送的SCI中携带目的接收端的ID以及目的接收端的周围节点的ID。
在本申请实施例中，当任一节点确定SCI中携带本节点的ID、且本节点不为目的接收端时，确定本节点为目的接收端的周围节点。
该节点作为目的接收端的任一周围节点，在向多个发送端反馈冲突信息时，指明发送端ID，通过一条反馈信息发送，具体格式可以参见图3。
在本申请实施例中，指示目的接收端的周围节点进行资源分配协作，可以防止目的接收端监听不到SCI而导致SCI指示的资源与其它SCI指 示的资源发生冲突情况。例如，发送端发出一个SCI且该SCI指示的资源与其它SCI指示的资源有冲突，如果此时目的接收端正在发送数据就会监听不到该SCI，导致无法对该SCI指示的资源进行资源分配协作，从而可能导致资源选择碰撞引发的数据传输失败。
本申请实施例还提供了一种终端直通通信的资源分配方法。参见图6，图6为本申请另一实施例的终端直通通信的资源分配方法的流程示意图。该方法应用于终端直通网络中的任一节点，具体包括如下步骤：
步骤601，接收发送端发送的副链路控制信息SCI，该SCI携带资源分配协作指示信息、发送端分配的数据传输资源的标识、以及发送端的终端直通优先级；该资源分配协作指示信息用于指示进行资源分配协作；
步骤602，根据SCI携带的数据传输资源的标识，确定SCI指示的资源与预设时间内接收到的其它SCI指示的资源是否发生冲突；
步骤603，如果SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；
步骤604，如果SCI指示的资源与其它SCI指示的资源发生冲突，则向该预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
在本申请实施例中，该方法进一步包括：发送端发送SCI之后，等待第一预设时间，确定第一预设时间内是否接收到针对所述SCI反馈的冲突信息，如果是，重新进行资源分配；否则，使用所述SCI指示的资源进行数据传输。
在本申请实施例中，SCI进一步携带目的接收端的ID以及目的接收端的周围节点的ID，该SCI携带的资源分配协作指示信息包括RCI。在接收发送端发送的SCI之后，该方法进一步包括：根据SCI携带的目的 接收端的ID以及目的接收端的周围节点的ID，判断本节点是否为目的接收端，并确定RCI的指示值。如果本节点为目的接收端且RCI的指示值为预设的第一指示值，则执行上述步骤602。
在本申请实施例中，SCI可进一步携带目的接收端的ID以及目的接收端的周围节点的ID，该SCI携带的资源分配协作指示信息包括NCI。在接收发送端发送的SCI之后，该方法进一步包括：根据SCI携带的目的接收端的ID以及目的接收端的周围节点的ID，判断本节点是否为目的接收端的周围节点，并确定NCI的指示值。如果本节点为目的接收端的周围节点且NCI的指示值为预设的第二指示值，则执行上述步骤602。
在本申请实施例中，SCI携带的资源分配协作指示信息包括RCI和NCI；其中，RCI的指示值为第一指示值时，指示目的接收端进行资源分配协作；所述NCI为第二指示值时，指示目的接收端的周围节点进行资源分配协作。
在本申请实施例中，当RCI的指示值为1时，则表示该SCI指示的目的接收端接收到该SCI时，需要对该SCI指示的资源进行资源分配协作；当RCI的指示值为0时，则表示该SCI指示的目的接收端接收到该SCI时，不需要对该SCI指示的资源进行资源分配协作。当NCI的指示值为1时，则表示目的接收端的周围节点在接收到该SCI时，需要对该SCI指示的资源进行资源分配协作；当NCI的指示值为0时，则表示目的接收端的周围节点在接收到该SCI时，不需要对该SCI指示的资源进行资源分配协作。
本申请实施例还提供了一种终端直通通信的资源分配装置。参见图7，图7为本申请实施例的终端直通通信的资源分配装置的结构示意图。该装置包括：
接收模块701，用于接收发送端发送的副链路控制信息SCI，所述 SCI携带资源分配协作指示信息、所述发送端分配的数据传输资源的标识、以及发送端的终端直通优先级；所述资源分配协作指示信息用于指示进行资源分配协作；
确定模块702，用于根据所述SCI携带的数据传输资源的标识，确定所述SCI指示的资源与预设时间内接收到的其它SCI指示的资源是否发生冲突；
发送模块703，用于如果所述确定模块702确定所述SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；如果所述确定模块702确定所述SCI指示的资源与其它SCI指示的资源发生冲突，则向所述预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
在本申请实施例中，SCI进一步携带目的接收端的ID以及目的接收端的周围节点的ID，SCI携带的资源分配协作指示信息包括接收协作指示RCI。该确定模块进一步用于，在接收模块接收发送端发送的SCI之后，根据SCI携带的目的接收端的ID以及目的接收端的周围节点的ID，判断本节点是否为目的接收端，并确定RCI的指示值；如果本节点为目的接收端且RCI的指示值为预设的第一指示值，则执行所述确定SCI指示的资源与预设时间内接收到的其它SCI指示的资源是否发生冲突的步骤。
在本申请实施例中，SCI进一步携带目的接收端的ID以及目的接收端的周围节点的ID，SCI携带的资源分配协作指示信息包括邻居协作指示NCI。确定模块进一步用于，在接收模块接收发送端发送的SCI之后，根据SCI携带的目的接收端的ID以及目的接收端的周围节点的ID，判断本节点是否为目的接收端的周围节点，并确定NCI的指示值；如果本 节点为目的接收端的周围节点且NCI的指示值为预设的第二指示值，则执行所述确定SCI指示的资源与预设时间内接收到的其它SCI指示的资源是否发生冲突的步骤。
在本申请实施例中，SCI携带的资源分配协作指示信息包括RCI和NCI；其中，RCI的指示值为第一指示值时，指示目的接收端进行资源分配协作；NCI为第二指示值时，指示目的接收端的周围节点进行资源分配协作。
请参见图8，是本申请实施例提供的一种终端设备的结构示意图。如图8所示的本实施例中的终端设备可以包括：一个或多个处理器801、一个或多个输入设备802、一个或多个输出设备803以及一个或多个存储器804。上述处理器801、输入设备802、输出设备803和存储器804通过总线805连接。存储器804用于存储计算机程序，所述计算机程序包括至少一条计算机程序指令，处理器801用于调用并执行所述存储器804存储的计算机程序指令，以执行如上实施例中所述的终端直通通信的资源分配方法。
在一个实施例中，该处理器801可以是中央处理单元(Central Processing Unit，CPU)，该处理器801还可以是其它通用处理器，即微处理器或者任何常规的处理器。该存储器804可以包括只读存储器和随机存取存储器等任意的计算机存储介质，并向处理器801提供指令和数据。
在本申请实施例中，由处理器801加载并执行计算机存储介质中存储的计算机程序指令，以执行如上实施例中所述的终端直通通信的资源分配方法。
本申请各实施例中，发送端等待的时间统一设置为第一预设时间，接收端等待的时间统一设置为第二预设时间，在实际应用中，每个节点 设置的等待时间可以根据实际应用确定，本申请对此不进行限制。
第一预设时间和第二预设时间可以相同也可以不同。
综上所述，本申请实施例通过目的接收端的资源分配协作和/或目的接收端的周围节点的资源分配协作确定发送端已分配的资源是否发生碰撞，针对碰撞情况优先保证高优先级业务的传输，从而能够减少资源选择碰撞引发的数据传输失败。
以上所述仅为本申请的实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本申请保护的范围之内。

Claims (16)

  1. 一种终端直通通信的资源分配方法，应用于终端直通网络中的任一节点，其特征在于，该方法包括：
    所述节点作为发送端，在分配数据传输的资源后，发送携带接收协作指示RCI的副链路控制信息SCI；其中，所述RCI指示目的接收端进行资源分配协作；等待第一预设时间，确定第一预设时间内是否接收到针对所述SCI反馈的冲突信息，如果是，重新进行资源分配；否则，使用所述SCI指示的资源进行数据传输；
    所述节点作为接收端，在接收到目的接收端为本节点的SCI且SCI携带RCI时，确定所述SCI指示的资源与第二预设时间内接收到的其它SCI指示的资源是否发生冲突；如果所述SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；如果所述SCI指示的资源与其它SCI指示的资源发生冲突，则向第二预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
  2. 根据权利要求1所述的方法，其特征在于，所述方法进一步包括：
    所述节点作为目的接收端之外的节点接收到所述SCI时，记录所述SCI所指示的资源的标识，作为本节点选择资源的参考。
  3. 根据权利要求1所述的方法，其特征在于，所述方法进一步包括：
    所述节点作为发送端，在发送携带RCI的SCI时，还在所述SCI中携带邻居协作指示NCI，其中，所述NCI用于指示目的接收端的周围节点进行资源分配协作；
    所述节点作为目的接收端的任一周围节点，在接收到SCI且SCI携带NCI时，确定该SCI指示的资源与第二预设时间内接收到的相同目的 接收端的其它SCI指示的资源是否发生冲突；如果该SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送SCI的发送端反馈确认信息；如果该SCI指示的资源与其它SCI指示的资源发生冲突，则向第二预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，
    在向多个发送端反馈确认信息和/或冲突信息时，指明发送终端标识(ID)，并通过一条反馈信息发送。
  5. 一种终端直通通信的资源分配方法，应用于终端直通网络中的任一节点，其特征在于，该方法包括：
    所述节点作为发送端，在分配数据传输的资源后，发送携带邻居协作指示NCI的副链路控制信息SCI，其中，所述NCI用于指示目的接收端的周围节点进行资源分配协作；等待第一预设时间，确定在第一预设时间内是否接收到针对所述SCI反馈的冲突信息，如果是，重新进行资源分配；否则，使用所述SCI指示的资源进行数据传输；
    所述节点作为目的接收端的任一周围节点，在接收到SCI且SCI携带NCI时，确定该SCI指示的资源与第二预设时间内接收到的相同目的接收端的其它SCI指示的资源是否发生冲突；如果该SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；如果该SCI指示的资源与其它SCI指示的资源发生冲突，则向第二预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
  6. 根据权利要求5所述的方法，其特征在于，所述方法进一步包括：
    在发送的SCI中携带目的接收端的标识(ID)、以及目的接收端的周围节点的ID；
    所述节点确定SCI中携带本节点的ID，且本节点不为目的接收端时，确定本节点为目的接收端的周围节点。
  7. 根据权利要求5或6所述的方法，其特征在于，
    所述节点作为目的接收端的任一周围节点，在向多个发送端反馈冲突信息时，指明发送终端ID，并通过一条反馈信息发送。
  8. 一种终端直通通信的资源分配方法，应用于终端直通网络中的任一节点，其特征在于，该方法包括：
    接收发送端发送的副链路控制信息SCI，所述SCI携带资源分配协作指示信息、所述发送端分配的数据传输资源的标识、以及发送端的终端直通优先级；所述资源分配协作指示信息用于指示进行资源分配协作；
    根据所述SCI携带的数据传输资源的标识，确定所述SCI指示的资源与预设时间内接收到的其它SCI指示的资源是否发生冲突；
    如果所述SCI指示的资源未与其它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；
    如果所述SCI指示的资源与其它SCI指示的资源发生冲突，则向所述预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
  9. 根据权利要求8所述的方法，其特征在于，所述SCI进一步携带目的接收端的标识(ID)以及目的接收端的周围节点的ID，所述SCI携带的资源分配协作指示信息包括接收协作指示RCI；
    在接收发送端发送的SCI之后，该方法进一步包括：
    根据所述SCI携带的目的接收端的ID以及目的接收端的周围节点的ID，判断本节点是否为目的接收端，并确定所述RCI的指示值；
    如果本节点为目的接收端且所述RCI的指示值为预设的第一指示 值，则执行所述确定所述SCI指示的资源与预设时间内接收到的其它SCI指示的资源是否发生冲突的步骤。
  10. 根据权利要求8所述的方法，其特征在于，所述SCI进一步携带目的接收端的ID以及目的接收端的周围节点的ID，所述SCI携带的资源分配协作指示信息包括邻居协作指示NCI；
    在接收发送端发送的SCI之后，该方法进一步包括：
    根据所述SCI携带的目的接收端的ID以及目的接收端的周围节点的ID，判断本节点是否为目的接收端的周围节点，并确定所述NCI的指示值；
    如果本节点为目的接收端的周围节点且所述NCI的指示值为预设的第二指示值，则执行所述确定所述SCI指示的资源与预设时间内接收到的其它SCI指示的资源是否发生冲突的步骤。
  11. 根据权利要求8所述的方法，其特征在于，所述SCI携带的资源分配协作指示信息包括RCI和NCI；其中，所述RCI的指示值为第一指示值时，指示目的接收端进行资源分配协作；所述NCI为第二指示值时，指示目的接收端的周围节点进行资源分配协作。
  12. 一种终端直通通信的资源分配装置，其特征在于，该装置包括：
    接收模块，用于接收发送端发送的副链路控制信息SCI，所述SCI携带资源分配协作指示信息、所述发送端分配的数据传输资源的标识、以及发送端的终端直通优先级；所述资源分配协作指示信息用于指示进行资源分配协作；
    确定模块，用于根据所述SCI携带的数据传输资源的标识，确定所述SCI指示的资源与预设时间内接收到的其它SCI指示的资源是否发生冲突；
    发送模块，用于如果所述确定模块确定所述SCI指示的资源未与其 它SCI指示的资源发生冲突，则向发送该SCI的发送端反馈确认信息；如果所述确定模块确定所述SCI指示的资源与其它SCI指示的资源发生冲突，则向所述预设时间内接收的所有SCI指示的、最高的终端直通优先级对应的发送端反馈确认信息，向其它发送端反馈冲突信息。
  13. 根据权利要求12所述的装置，其特征在于，所述SCI进一步携带目的接收端的标识(ID)以及目的接收端的周围节点的ID，所述SCI携带的资源分配协作指示信息包括接收协作指示RCI；
    所述确定模块进一步用于，在接收模块接收发送端发送的SCI之后，根据所述SCI携带的目的接收端的ID以及目的接收端的周围节点的ID，判断本节点是否为目的接收端，并确定所述RCI的指示值；如果本节点为目的接收端且所述RCI的指示值为预设的第一指示值，则执行所述确定所述SCI指示的资源与预设时间内接收到的其它SCI指示的资源是否发生冲突的步骤。
  14. 根据权利要求12所述的装置，其特征在于，所述SCI进一步携带目的接收端的ID以及目的接收端的周围节点的ID，所述SCI携带的资源分配协作指示信息包括邻居协作指示NCI；
    所述确定模块进一步用于，在接收模块接收发送端发送的SCI之后，根据所述SCI携带的目的接收端的ID以及目的接收端的周围节点的ID，判断本节点是否为目的接收端的周围节点，并确定所述NCI的指示值；如果本节点为目的接收端的周围节点且所述NCI的指示值为预设的第二指示值，则执行所述确定所述SCI指示的资源与预设时间内接收到的其它SCI指示的资源是否发生冲突的步骤。
  15. 根据权利要求12所述的装置，其特征在于，所述SCI携带的资源分配协作指示信息包括RCI和NCI；其中，所述RCI的指示值为第一指示值时，指示目的接收端进行资源分配协作；所述NCI为第二指示 值时，指示目的接收端的周围节点进行资源分配协作。
  16. 一种终端设备，其特征在于，包括一个或多个处理器和一个或多个存储器，其中，所述一个或多个存储器用于存储至少一条计算机程序指令，所述一个或多个处理器被配置用于调用所述至少一条计算机程序指令，以执行如权利要求1-11任一项所述的终端直通通信的资源分配方法。
    一种非易失性计算机存储介质，其特征在于，所述计算机存储介质存储有计算机程序指令，所述计算机程序指令由处理器加载并执行如权利要求1-11任一项所述的终端直通通信的资源分配方法。
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