WO2023179754A1 - 远端终端的识别符的分配方法、装置及终端 - Google Patents

远端终端的识别符的分配方法、装置及终端 Download PDF

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Publication number
WO2023179754A1
WO2023179754A1 PCT/CN2023/083613 CN2023083613W WO2023179754A1 WO 2023179754 A1 WO2023179754 A1 WO 2023179754A1 CN 2023083613 W CN2023083613 W CN 2023083613W WO 2023179754 A1 WO2023179754 A1 WO 2023179754A1
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Prior art keywords
identifier
terminal
relay terminal
target
remote
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PCT/CN2023/083613
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English (en)
French (fr)
Inventor
刘进华
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维沃移动通信有限公司
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Publication of WO2023179754A1 publication Critical patent/WO2023179754A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present application belongs to the field of wireless communication technology, and specifically relates to a method, device and terminal for allocating an identifier of a remote terminal.
  • Remote UE Remote User Equipment
  • Relay UE relay terminal
  • the communication between two remote terminals is realized through data forwarding through the relay terminal, thereby realizing terminal-to-terminal (UE to UE, U2U) communication.
  • the network device serves as the main control node in the network architecture.
  • the identifier of the remote terminal used for relay transmission is assigned by the network device and passed in the header of the data packet. Carrying this identifier allows the relay terminal to identify the data packets that need to be forwarded to the remote terminal, and also allows the network device to identify the data packets from the remote terminal.
  • the wireless connection between the relay terminal and the remote terminal and the network device may be disconnected, so that the network device cannot assign an identifier to the remote terminal.
  • Embodiments of the present application provide a method, device and terminal for allocating identifiers of remote terminals, which can solve the problem of network equipment being unable to allocate identifiers to remote terminals due to disconnection of wireless connections between relay terminals and remote terminals and network equipment. Identifier problem.
  • a method for allocating an identifier of a remote terminal including: a relay terminal determines at least one candidate identifier; and the relay terminal identifies a first target in the at least one candidate identifier. The symbol is allocated to the first remote terminal, where the first remote terminal is a remote terminal accessing the service of the relay terminal.
  • a device for allocating an identifier of a remote terminal including: a determining module for determining at least one candidate identifier; and an allocation module for assigning one of the at least one candidate identifier to a first A target identifier is assigned to the first remote terminal.
  • a method for selecting an identifier of a remote terminal including: the first remote terminal sending first indication information to the relay terminal, wherein the first indication information is used to indicate at least one candidate identification symbol; the first remote terminal receives a message sent by the relay terminal, wherein the message carries at least one candidate identifier and mark information, and the mark information is used to indicate the at least one candidate identifier whether the first remote terminal is available; the first remote terminal selects an available first target identifier from the at least one candidate identifier as the identifier of the first remote terminal according to the mark information.
  • a device for selecting an identifier of a remote terminal including: a sending module configured to send first indication information to the relay terminal, wherein the first indication information is used to indicate at least one candidate identification. identifier; a receiving module configured for the terminal to receive a message sent by the relay terminal, wherein the message carries at least one candidate identifier and tag information, and the tag information is used to indicate that the at least one candidate identifier is available; a selection module configured to select an available first target identifier from the at least one candidate identifier as the identifier of the first remote terminal according to the mark information.
  • a terminal in a fifth aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in one aspect, or the steps of implementing the method described in the third aspect.
  • a sixth aspect provides a terminal, including a processor and a communication interface, wherein the processor is configured to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the third aspect, so The above communication interface is used to communicate with external devices.
  • a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented as described in the first aspect. The steps of the method described in the third aspect.
  • a chip in an eighth aspect, includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the method described in the first aspect. steps, or steps to implement the method described in the third aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the method described in the first aspect The steps of a method, or steps of implementing a method as described in the third aspect.
  • the relay terminal determines at least one candidate identifier, and allocates a first target identifier among the at least one candidate identifier to the remote terminal accessing the relay terminal, Thus, even if the wireless connection between the relay terminal and the remote terminal and the network device is disconnected, the identifier can be assigned to the remote terminal.
  • Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable
  • Figure 2 shows a schematic diagram of a U2U network architecture applicable to the embodiment of the present application
  • Figure 3a shows a schematic diagram of a user plane protocol stack for layer 2 relay
  • Figure 3b shows a schematic diagram of a control plane protocol stack for layer 2 relay
  • Figure 4 shows a schematic flow chart of a method for allocating identifiers of remote terminals provided by an embodiment of the present application
  • Figure 5 shows a schematic flow chart of a method for selecting an identifier of a remote terminal provided by an embodiment of the present application.
  • Figure 6 shows a schematic structural diagram of a device for allocating identifiers of remote terminals provided by an embodiment of the present application
  • Figure 7 shows a schematic structural diagram of a device for selecting an identifier of a remote terminal provided by an embodiment of the present application
  • Figure 8 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 9 shows a schematic diagram of the hardware structure of a terminal provided by an embodiment of the present application.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and “second” are distinguished objects It is usually one type, and the number of objects is not limited.
  • the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced, LTE-A Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • NR New Radio
  • FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
  • the wireless communication system includes a relay terminal 11, a network side device 12 and a remote terminal 13.
  • the remote terminal 13 and the relay terminal 11 communicate through the PC5 (secondary link or relay link) interface
  • the relay terminal 11 and the network side device 12 communicate through the Uu interface. .
  • the relay terminal 11 may also be called a relay terminal device or a relay user terminal (User Equipment, UE), and the remote terminal 13 may also be called a remote terminal device or a remote UE.
  • the subsequent terminal 11 and the remote terminal 13 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, Ultra-mobile personal computer (UMPC), Mobile Internet Device (MID), Wearable Device (Wearable Device) or Vehicle User Equipment (VUE), Pedestrian User Equipment (Pedestrian User Equipment) , PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc.
  • the network side device 12 may be a network device or a core network, where the network device may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio network device, or a radio transceiver.
  • BTS Base Transceiver Station
  • BSS Basic Service Set
  • ESS Extended Service Set
  • B node evolved B node
  • eNB evolved B node
  • home B node home evolved B node
  • Wireless Local Area Network Wireless Local Area Network
  • WLAN Wireless Fidelity
  • WiFi Wireless Fidelity
  • TRP Transmitting Receiving Point
  • Figure 2 shows a schematic diagram of a U2U network architecture applicable to the embodiment of the present application.
  • the remote UE1 or the remote UE2 can find a suitable relay UE and use the relay The UE establishes a relay channel.
  • the communication between the remote UE1 and the remote UE2 is implemented through data forwarding by the relay UE.
  • the relay adaptation layer (Sidelink Relay Adaptation Protocol, SRAP) has the function of routing and identifying forwarded data packets, and its protocol header can include:
  • Identification information of the routing function of the trunk channel such as the identity of the trunk channel.
  • the SRAP layer protocol entity of a remote UE receives the Packet Data Convergence Protocol (PDCP) protocol data unit (Protocol Data Unit, PDU) to be forwarded, it determines its destination remote UE The identifier or address of the SRAP layer protocol header is generated and loaded before the PDCP PDU to form a SRAP PDU.
  • the relay UE receives the SRAP PDU, it determines the destination remote UE based on the SRAP header information of the SRAP PDU and sends the SRAP PDU Forwarded to the destination remote UE.
  • the Radio Resource Control (RRC) information and data between two remote UEs adopt a relay transmission method similar to that based on the SRAP protocol.
  • the receiving remote UE can identify the RRC message and process it accordingly based on the radio bearer indication carried in the SRAP header carried by the SRAP PDU.
  • Figure 4 shows a schematic flowchart of a method for allocating an identifier of a remote terminal in an embodiment of the present application.
  • the method 400 can be executed by a relay terminal.
  • the method may be performed by software or hardware installed on the relay terminal.
  • the method may include the following steps.
  • the relay terminal determines at least one candidate identifier.
  • the relay terminal allocates a first target identifier among the at least one candidate identifier to a first remote terminal, where the first remote terminal is a user accessing the service of the relay terminal. remote terminal.
  • the identifier of the remote terminal may also be called the SRAP address of the remote terminal, the SRAP identifier, the local identifier of the remote terminal, the U2U network address of the remote terminal, etc.
  • the relay terminal allocates the first target identifier to the first remote terminal. That is to say, the relay terminal establishes a binding between the first target identifier and the first remote terminal.
  • the first remote terminal may be identified by the first target identifier.
  • the relay terminal determines at least one candidate identifier, and allocates a first target identifier among the at least one candidate identifier to access the relay terminal.
  • the remote terminal can be assigned an identifier to the remote terminal even if the wireless connection between the relay terminal and the remote terminal and the network device is disconnected. This allows the first remote UE to obtain the identifier used for self-addressing in the L2U2U network, and reduces the probability of identifier collision between different remote UEs in the U2U network.
  • the relay terminal may determine the at least one candidate identifier based on the configuration, preconfiguration, instruction of the first remote terminal, etc. of the network device. Therefore, in a possible implementation, S410 may Including at least one of the following (1) to (3).
  • the relay terminal obtains a first target configuration parameter from a network device (for example, a base station), and obtains the at least one candidate identifier according to the first target configuration parameter, where the first target configuration parameter is used to configure
  • the first value range of the candidate identifier that can be allocated by the relay terminal includes the full value range of the identifier or a subfield of the full value range of the identifier.
  • the serving network device of the relay UE may allocate a list or range of identifiers available for allocation to the relay UE, and the relay UE allocates identifiers to the remote UE within the list or range. For example, assuming that the full value range of the identifier is [0, 255], the service network device of the relay terminal can configure a first target configuration parameter that configures the candidate identification that can be allocated by the relay terminal.
  • the first value range is [0,100], or the first value range of the first target configuration parameter configuration that can be allocated by the relay terminal is [0,255], or the first target configuration parameter configuration can be used by the relay terminal.
  • the first value range of the candidate identification assigned by the relay terminal may also be a list, for example, ⁇ 0, 2, 4, 6, 8, 10 ⁇ .
  • the relay terminal may serve as a relay terminal for multiple remote terminal pairs.
  • the relay terminal may serve as a relay terminal between remote UE1 and remote UE2, or may serve as a relay terminal between remote UE3 and remote UE3. Therefore, it may be necessary to allocate an identifier to each remote terminal in the multiple remote terminal pairs.
  • the first target configuration The candidate identifiers for parameter configuration may have been allocated, or may not be enough.
  • the method further includes: after the candidate identifiers obtained according to the first target configuration parameter have been used up or the candidate identifiers obtained according to the first target configuration parameter have been used. If the ratio exceeds a predetermined threshold, the relay terminal requests the network device to add available candidate identifiers. For example, when the identifiers pre-allocated by the serving network device to the relay UE have been used up or the usage ratio exceeds a predetermined threshold, the relay UE may request the network device to increase the identifiers available for allocation.
  • the method further includes : The relay terminal sends allocation information to the network device, wherein the allocation information includes at least one of the following: candidates obtained according to the first target configuration parameter.
  • the relay UE may report to the network device the allocated proportion or number of pre-allocated identifiers, the number of unallocated identifiers or the proportion of pre-allocated identifiers by the network device, etc.
  • the relay terminal may actively send the allocation information, or may send the allocation information at the request of the network device, so that the network device knows that the candidate identifier is allocated. Therefore, in a possible implementation, before the relay terminal sends allocation information to the network device, the method further includes: the relay terminal receives the first request sent by the network device, wherein, The first request is used to request the relay terminal to report the allocation information.
  • the relay terminal obtains the at least one candidate identifier according to the preconfigured second target configuration parameter.
  • the second target configuration parameter may be configured in the relay terminal in advance, and the relay terminal obtains the at least one candidate identifier based on the second target configuration parameter.
  • the second target configuration parameter may configure a full range of candidate identifiers available for allocation (for example, 0 to 255), or may configure multiple subdomains available for allocation (for example, a subdomain list).
  • the terminal determines that the at least one candidate identifier is all identifiers in the full-value domain, or the relay terminal determines that the at least one candidate identifier is a sub-domain of the full-value domain, or is one of the multiple configured sub-domain lists. a subdomain of .
  • the second target configuration parameter may also directly configure a subdomain (for example, 0 to 100), and the relay terminal determines the at least one candidate identifier as the identifier in the subdomain.
  • a subdomain may be randomly selected from a subdomain list or according to some preconfigured rules.
  • the determination is, for example, based on the mapping relationship between a certain identity of the relay UE and the subdomain.
  • the selection is based on the mapping relationship between the relay terminal's Cell Radio Network Temporary Identity (Cell RNTI, C-RNTI) or the inactive RNTI (Inactive RNTI, I-RNTI) and the subdomain, for example, selecting in the subdomain list mod(C-RNTI, number of subdomains) subdomain.
  • Cell RNTI Cell Radio Network Temporary Identity
  • I-RNTI active RNTI
  • the network device may explicitly or implicitly enable the relay terminal to autonomously determine the at least one candidate identifier. Therefore, in a possible implementation, before the relay terminal determines the at least one candidate identifier according to the preconfigured second target configuration parameter, the method further includes: the relay terminal receives the Second indication information sent by the network device, wherein the second indication information indicates that the relay terminal is allowed to allocate an identifier to the remote terminal.
  • the relay terminal receiving the second indication information sent by the network device may include one of the following:
  • the relay terminal receives a system message broadcast by the network device, wherein the system message carries the second instruction information;
  • the network device can enable the relay UE to autonomously allocate identifiers to the remote UE through system messages.
  • the network device can add an indication field in the system information block (System Information Block, SIB) 12 to instruct the relay UE. Whether identifiers can be allocated autonomously to remote UEs.
  • SIB System Information Block
  • the relay terminal receives terminal-specific signaling sent by the network device, where the terminal-specific signaling carries the second indication information.
  • the network device can indicate whether the relay UE can autonomously allocate identifiers to the remote UE through Non-Access Stratum (NAS) signaling.
  • NAS Non-Access Stratum
  • the relay terminal allocates a first target identifier among the at least one candidate identifier to the first remote terminal, which may include: the relay terminal obtains a first target identifier according to the first Select an unused candidate identifier from at least one candidate identifier obtained by a target configuration parameter as the first target identifier and assign it to the first remote terminal.
  • the relay terminal may be within the coverage of a cell, and when the first target configuration parameter is obtained from the network device, the relay terminal may obtain the first target configuration parameter from the at least one candidate identifier.
  • An unused candidate identifier that is, an identifier that has not been allocated by the relay terminal to other remote terminals is selected as the first target identifier and allocated to the first remote terminal.
  • the relay terminal may send the second target configuration parameter to the network device. request, wherein the second request is used to request the network device to provide the first target configuration parameter for the relay terminal, and then receive the first target configuration parameter allocated by the network device.
  • the relay UE allocates the identifier of the remote UE according to the remote identifier allocation configuration provided by the network device (ie, the above-mentioned first target configuration parameter). If the relay UE is within the coverage of a cell, but the cell does not provide the identifier allocation configuration of the remote UE, the relay UE may request the cell to provide the identifier allocation configuration of the remote UE.
  • the cell is a cell that supports remote UE identifier allocation configuration for the relay UE.
  • the relay terminal assigning a first target identifier among the at least one candidate identifier to the first remote terminal may also include: the relay terminal obtains a first target identifier according to the first Select an unused candidate identifier from at least one candidate identifier obtained from the two target configuration parameters as the first target identifier and assign it to the first remote terminal.
  • the relay terminal may select an unused candidate identifier from the at least one candidate identifier as the first target identifier. character assigned to the first remote terminal.
  • the relay terminal may allocate the first target identifier to the first remote terminal in the discovery process.
  • the relay UE allocates the first target identifier in the discovery process.
  • the identifier configured for the remote UE is carried in the subsequent response message of the discovery information sent to the remote UE.
  • the relay UE after receiving the discovery message from the first remote UE, the relay UE allocates a first target identifier to the first remote UE, carries the first target identifier in the discovery message, and then forwards the first target identifier.
  • the communication counterpart of the first remote UE that is, the second remote UE, after receiving the discovery message carrying the first target identifier, subsequently sends the discovery information to the remote UE.
  • the response discovery message carries the first target identifier.
  • the relay UE forwards the response discovery message to the first remote UE, so that the first remote UE can learn that the relay terminal is Its assigned identifier.
  • the relay terminal can also directly indicate the first target identifier to the first remote terminal.
  • the relay terminal can use the side link radio resource control (PC5RRC) signaling process to send the first target identifier to the first remote terminal.
  • PC5RRC side link radio resource control
  • the first target identifier for example, during the process of establishing a relay side link between the first remote UE and the relay UE, the relay UE configures the identifier of the first remote UE through PC5RRC signaling.
  • the relay terminal receives the first indication information sent by the first remote terminal, and obtains the at least one candidate identifier according to the first indication information, wherein the first indication information is used to indicate at least one identification symbol.
  • the first remote UE can autonomously and randomly determine several candidate identifiers, generate one or more candidate identifiers for its own use when initiating a relay channel establishment request, and send the first remote UE to the relay terminal.
  • An indication information the indication information is used to indicate several candidate identifiers determined by the first remote terminal, and the relay terminal determines the at least one candidate identifier according to the first indication information.
  • the relay terminal may use one or more identifiers indicated by the first indication information as the at least one candidate identifier, or the relay terminal may also send one or more identifiers indicated by the first indication information to the third candidate identifier.
  • the second remote terminal i.e., the communication counterpart of the first remote terminal
  • the second remote terminal can determine whether one or more identifiers indicated by the first indication information include the identifier of the second remote terminal. If so, , then the indication is given to the relay terminal. After eliminating the identifier of the second remote terminal from the one or more identifiers indicated by the first indication information, the relay terminal determines that the remaining one or more identifiers are the at least one A candidate identifier.
  • the relay terminal may save identifier occupancy information, where the identifier occupancy information records the identifiers used by the relay terminal, for example, the identifiers that the relay terminal has assigned to the remote terminal. identifier.
  • the relay terminal may, according to the saved identifier occupancy information, select an unused candidate identifier from at least one candidate identifier obtained according to the first indication information as the first target identifier to assign to the first remote terminal.
  • the relay terminal may also cooperate with the first remote terminal to allocate the first target identifier to the first remote terminal. Therefore, in this possible implementation, an unused candidate identifier is selected from the at least one candidate identifier as the first target identifier Assignment to the first remote terminal may include:
  • Step 1 The relay terminal marks unused identifiers in the at least one candidate identifier and/or identifies used identifiers in the at least one candidate identifier based on the identifier occupancy information;
  • Step 2 The relay terminal sends the identified at least one candidate identifier to the first remote terminal;
  • Step 3 The relay terminal receives a notification sent by the first remote terminal, wherein the notification carries the first target identifier selected by the first remote terminal;
  • Step 4 The relay terminal determines to allocate the first target identifier to the first remote terminal.
  • the relay terminal can mark available identifiers or mark occupied identifiers in the candidate identifiers based on the identifier occupancy information it obtains, and send the message to the first remote terminal.
  • the end UE determines the first target identifier to be used by the first remote UE and reports the first target identifier to the relay UE.
  • the relay terminal can implement the above steps in the discovery process of the first remote terminal, or can also implement it through the side-link radio resource control (PC5-RRC) process.
  • PC5-RRC side-link radio resource control
  • the method may further include:
  • Step 1 The relay terminal records the first target identifier in identifier occupancy information, wherein the identifier occupancy information is used to record the identifier used by the relay terminal;
  • Step 2 The relay terminal deletes the first target identifier in the at least one candidate identifier.
  • the relay UE can maintain a list of remote UE identifiers, and save the list of occupied or allocated identifiers and the list of identifiers available for allocation; the relay UE will list the identifiers allocated to the remote UE as occupied.
  • the list of identifiers includes unallocated or released identifiers in the list of identifiers available for allocation.
  • the method may further include:
  • the relay terminal releases the first target identifier.
  • the relay terminal can delete the binding relationship between the first target identifier and the first remote terminal, that is, the first target identifier and the first remote terminal.
  • a remote terminal is unbound;
  • the relay terminal re-lists the released first target identifier as a candidate identifier. For example, The first target identifier is added to the list of identifiers available for assignment.
  • the predetermined situation includes but is not limited to one of the following:
  • the relay terminal After the relay terminal releases the relay side link with the first remote terminal; for example, after the relay UE releases the relay side link with the remote UE, it may determine to release the identification of the remote UE symbol.
  • the relay terminal After the relay terminal receives the relay side link release request from the first remote terminal; for example, the relay UE determines to release the relay side link after receiving the relay side link release request sent by the remote UE.
  • the relay bypasses the link and, therefore, can release the identifier of the remote UE.
  • the relay side link connection failure occurs between the relay terminal and the first remote terminal; for example, after the relay UE allocates an identity to the remote UE, the relay side link connection failure occurs with the remote UE. Finally, it can be determined to release the identifier of the remote UE.
  • the target event includes one of the following: a wireless link failure occurs in the link between the relay terminal and the network device; Handover failure occurs in the link between the relay terminal and the network device; for example, the relay UE notifies the UE that a radio link failure (Radio Link Failure, RLF) occurs in the Uu link between the relay UE and the serving network device. Or after the handover fails, the identifier can be determined to be recovered.
  • a wireless link failure occurs in the link between the relay terminal and the network device
  • Handover failure occurs in the link between the relay terminal and the network device
  • RLF Radio Link Failure
  • the identifier can be determined to be recovered.
  • the relay terminal determines that the first remote terminal does not use the first target identifier within a preset time period; for example, the relay UE determines that a remote UE does not use a certain target identifier within a preset time period.
  • the identifier can be released independently.
  • the relay terminal reconfigures an identifier different from the first target identifier for the first remote terminal. For example, after the relay terminal allocates a first target identifier to the first remote terminal, and then allocates a new identifier to the remote terminal for some reason, it can determine to release the previously allocated first target identifier. symbol.
  • the relay terminal releasing the first target identifier may include: the relay terminal sending a notification to the first remote terminal, notifying the first remote terminal to release the first target identifier.
  • the first target identifier For example, the relay UE can notify a remote UE through PC5-RRC signaling to release the allocated identifier.
  • the relay terminal releasing the first target identifier may also include: the relay terminal deleting the first target identifier in the identifier occupancy information, wherein the identification The identifier occupancy information is used to record the identifiers used by the relay terminal; the relay terminal adds the first target identifier to the at least one candidate identifier. For example, the first target identifier is deleted from the list of identifiers that have been occupied or allocated, and the first target identifier is added to the list of identifiers available for allocation.
  • the relay terminal allocates a first target identifier among the at least one candidate identifier to the first remote terminal, including:
  • Step 1 The relay terminal receives a message from the first remote terminal, wherein the The message requests the identifier assigned by the relay terminal to the first remote terminal.
  • the message may display an identifier requesting the relay terminal to allocate to the first remote terminal.
  • the message carries a request information, and the request information is used to request the relay terminal to allocate an identifier to the first remote terminal. Identification of the remote terminal assignment.
  • the message may also implicitly request the relay terminal to assign an identifier to the first remote terminal. For example, if the remote UE does not carry an identifier in the relay message sent to the relay UE for forwarding, the relay UE may allocate an identifier to the remote UE.
  • Step 2 The relay terminal allocates a first target identifier among the at least one candidate identifier to the first remote terminal.
  • the relay terminal After the relay terminal allocates a first target identifier among the at least one candidate identifier to the first remote terminal, the relay terminal adds the first target identifier to the message. After the target identifier, the message carrying the first target identifier is forwarded. For example, the relay UE adds the identifier assigned to the remote UE to the forwarded discovery signal and then forwards it.
  • the method may also include:
  • Step 1 During the relay connection establishment process initiated by the first remote terminal, the relay terminal receives the second target identifier reported by the first remote terminal, and the second target identifier is the The identifier assigned by the relay terminal to the first remote terminal before receiving the relay connection establishment request;
  • Step 2 The relay terminal confirms to the first remote terminal that the first remote terminal continues to use the second target identifier, or the relay terminal re-identifies as the first remote terminal. Assign a first target identifier.
  • the first remote terminal when the first remote terminal already has the second target identifier allocated by the relay terminal, the first remote terminal can send a message to the relay during the process of initiating a relay connection establishment request.
  • the terminal reports that the relay terminal can confirm to the first remote terminal to continue to use the second target identifier, or can re-allocate the first target identifier to the first remote terminal, so that the first remote terminal and the relay
  • the understanding of the terminal can be consistent.
  • the first remote terminal may report the second target identifier through a discovery message, or may also report the second target identifier through PC5RRC signaling. Therefore, the relay terminal receiving the second target identifier reported by the first remote terminal may include:
  • the relay terminal receives a discovery message sent by the first remote terminal, wherein the discovery message carries the second target identifier; or,
  • the relay terminal receives the side link radio resource control signaling sent by the first remote terminal, where the side link radio resource control signaling carries the second target identifier.
  • the method further includes: the relay terminal adds the first remote terminal to the discovery message.
  • the relay terminal adds the first remote terminal to the discovery message.
  • the identifier of the end terminal for example, the second target identifier or the first target identifier
  • transfer Send the discovery message carrying the identifier of the first remote terminal.
  • the remote UE may already have an identifier previously allocated by the relay UE.
  • the remote UE can report the allocated identifier to the relay UE; the relay UE can confirm that the remote UE reuses the existing identifier, or allocate a new identifier to the UE.
  • This identifier can be carried in the discovery signal, or can be notified to the relay UE using subsequent PC5-RRC signaling.
  • the relay UE also forwards the identifier when forwarding the discovery signal to the remote UE.
  • the remote UE when the remote UE has previously obtained the identifier from a relay UE, the first preconfiguration time has elapsed since the last time the identifier was obtained, or the second preconfiguration time has elapsed since the last time the identifier was used. time, it is determined that the identifier is invalid.
  • the remote UE initiates a relay channel establishment request, it does not report this identifier or needs to apply for an identifier again.
  • the method may further include: The relay terminal notifies a second remote terminal of the first target identifier assigned to the first remote terminal, wherein the second remote terminal is a communication partner of the first remote terminal. end.
  • the relay terminal may carry the first target identifier in a discovery message sent by the first remote terminal and notify the second remote terminal.
  • the method may further include: the relay terminal notifying the first remote terminal of the third target identifier assigned to the second remote terminal. For example, after forwarding the discovery message to the second remote terminal, the relay terminal receives a response discovery message sent by the second remote terminal. If the response discovery message does not carry the identifier of the second remote terminal, the relay terminal The second remote terminal may be assigned a third target identifier, and the third target identifier may be carried in a response discovery message sent to the first remote terminal.
  • the SRAP PDU can be generated by the remote UE, that is, the remote end adds an SRAP header before the PDCP PDU, and the SRAP header contains routing information, including Self-identifier, peer remote UE identifier, radio bearer identifier, etc.; this method requires the remote UE.
  • the relay UE can add an SRAP header to the PDCP PDU.
  • the SRAP header contains routing information, including the remote UE (ie, remote UE1). identifier, the identifier of the opposite remote UE (i.e., remote UE2), the radio bearer identifier, etc.; after receiving the SRAP PDU of the opposite remote UE (i.e., remote UE2), the relay UE uses its SRAP header , determine whether the destination remote UE of the SRAP PDU is the remote UE (i.e., remote UE1).
  • the remote UE1 does not need to support side Link relay adaptation layer function.
  • the remote UE can obtain the identifier used for self-addressing in the L2U2U network, and reduce the probability of identifier collision between different remote UEs in the U2U network.
  • Figure 5 shows a schematic flowchart of a method for selecting an identifier of a remote terminal in an embodiment of the present application.
  • the method 500 can be executed by the first remote terminal.
  • the method may be performed by software or hardware installed on the relay terminal.
  • the method may include the following steps.
  • the first remote terminal sends first indication information to the relay terminal, where the first indication information is used to indicate at least one candidate identifier.
  • the first remote terminal may send a discovery message to the relay terminal, where the discovery message carries the first indication information.
  • the first remote terminal receives a message sent by the relay terminal, wherein the message carries at least one candidate identifier and tag information, and the tag information is used to indicate the at least one candidate identifier. is available in .
  • the relay terminal may forward the response discovery message carrying at least one candidate identifier and tag information to the first remote terminal.
  • the first remote terminal selects an available first target identifier from the at least one candidate identifier as the identifier of the first remote terminal according to the tag information.
  • the method may further include: sending a notification by the first remote terminal to the relay terminal, wherein: The notification carries the first target identifier selected by the first remote terminal.
  • the execution subject may be a device for allocating an identifier of a remote terminal.
  • the apparatus for allocating the identifier of the remote terminal is used as an example to illustrate the apparatus for allocating the identifier of the remote terminal provided by the embodiment of the present application.
  • Figure 6 shows a schematic structural diagram of a device for allocating an identifier of a remote terminal provided by an embodiment of the present application.
  • the device 600 mainly includes a determination module 601 and an allocation module 602.
  • the determination module 601 is used to determine at least one candidate identifier; the allocation module 602 is used to allocate a first target identifier among the at least one candidate identifier to the first remote terminal.
  • the determination module 601 determines at least one candidate identifier, including at least one of the following:
  • the relay terminal obtains a first target configuration parameter from a network device, and obtains the at least one candidate identifier according to the first target configuration parameter, wherein the first target configuration parameter is used to configure the Following the first value range of the candidate identifier assigned by the terminal, the first value range includes the full value range of the identifier or a subfield of the full value range of the identifier;
  • the relay terminal obtains the at least one candidate identifier according to the preconfigured second target configuration parameter
  • the relay terminal receives the first indication information sent by the first remote terminal, and obtains the at least one candidate identifier according to the first indication information, wherein the first indication information is used to indicate at least one identification symbol.
  • the device may also include:
  • the first transceiver module 603 is configured to: When the candidate identifiers obtained according to the first target configuration parameter have been used up or the proportion of used candidate identifiers obtained according to the first target configuration parameter exceeds a predetermined threshold, The relay terminal requests the network device to add available candidate identifiers; and/or,
  • the first transceiver module 603 is configured to send allocation information to the network device, where the allocation information includes at least one of the following: the number of used candidate identifiers obtained according to the first target configuration parameter, The unused number of candidate identifiers obtained according to the first target configuration parameter, the used proportion of the candidate identifiers obtained according to the first target configuration parameter, the candidate identifications obtained according to the first target configuration parameter Unused proportions in symbols.
  • the first transceiver module 603 is also configured to receive a first request sent by the network device, where the first request is used to request the relay terminal to report the allocation information. .
  • the determining module 601 is also configured to receive second indication information sent by the network device, wherein the second indication information indicates that the relay terminal is allowed to allocate an identifier to the remote terminal. .
  • the determining module 601 receiving the second indication information sent by the network device includes:
  • the allocation module 602 allocates a first target identifier among the at least one candidate identifier to the first remote terminal, including: Select an unused candidate identifier from at least one candidate identifier as the first target identifier and assign it to the first remote terminal.
  • the allocation module 602 selects an unused candidate identifier from the at least one first candidate identifier as the first target identifier and assigns it to the first remote terminal, include:
  • the relay terminal When the relay terminal is within the coverage of a cell and the relay terminal obtains the first target configuration parameter from the network device, the relay terminal identifies the first target configuration parameter from the at least one first candidate An unused candidate identifier is selected as the first target identifier and assigned to the first remote terminal.
  • the allocation module 602 is also used to:
  • the relay terminal When the relay terminal is within the coverage of the cell and the first target configuration parameter is not obtained from the network device, the relay terminal sends a second request to the network device, where the second request is Requesting the network device to provide the first target configuration parameter for the relay terminal;
  • the allocation module 602 allocates a first target identifier among the at least one candidate identifier to the first remote terminal, including: Select an unused candidate identifier from at least one candidate identifier as the first target identifier and assign it to the first remote terminal.
  • the allocation module 602 selects an unused candidate identifier from the at least one candidate identifier as the first target identifier and assigns it to the first remote terminal, including:
  • the relay terminal selects an unused candidate identifier from the at least one candidate identifier as the first target identifier and assigns it to the first remote terminal.
  • the allocation module allocates a first target identifier among the at least one candidate identifier to the first remote terminal, including:
  • the relay terminal selects an unused candidate identifier as the first target identifier from at least one candidate identifier obtained according to the first indication information and assigns it to the first target identifier according to the saved identifier occupancy information.
  • a remote terminal selects an unused candidate identifier as the first target identifier from at least one candidate identifier obtained according to the first indication information and assigns it to the first target identifier according to the saved identifier occupancy information.
  • the allocation module 602 selects an unused candidate identifier from the at least one candidate identifier as the first target identifier and assigns it to the first remote terminal, including:
  • the device may further include: a storage module 604, configured to record the first target identifier in identifier occupancy information, wherein the identifier occupancy information Used to record the identifier used by the relay terminal; delete the first target identifier in the at least one candidate identifier.
  • a storage module 604 configured to record the first target identifier in identifier occupancy information, wherein the identifier occupancy information Used to record the identifier used by the relay terminal; delete the first target identifier in the at least one candidate identifier.
  • the device further includes: a release module 605, configured to release the first target identifier under a predetermined situation, and use the released first target identifier to The identifier is relisted as a candidate identifier.
  • a release module 605 configured to release the first target identifier under a predetermined situation, and use the released first target identifier to The identifier is relisted as a candidate identifier.
  • the predetermined situation includes one of the following:
  • the target event includes one of the following: a wireless link failure occurs in the link with the network device, a handover failure occurs in the link with the network device ;
  • the release module 605 releases the first target identifier, including: sending a notification to the first remote terminal to notify the first remote terminal to release the first target identifier. symbol.
  • the release module 605 releases the first target identifier, further including:
  • Delete the first target identifier in identifier occupancy information wherein the identifier occupancy information is used to record the identifier that has been used by the relay terminal;
  • the first target identifier is added to the at least one candidate identifier.
  • the allocation module 602 allocates a first target identifier among the at least one candidate identifier to the first remote terminal, including:
  • a first target identifier of the at least one candidate identifier is assigned to the first remote terminal.
  • the allocation module 602 is also configured to forward the message carrying the first target identifier after the relay terminal adds the first target identifier to the message.
  • the device may also include:
  • the second transceiver module 606 is configured to receive the second target identifier reported by the first remote terminal during the relay connection establishment process initiated by the first remote terminal, where the second target identifier is the The identifier assigned by the relay terminal to the first remote terminal before receiving the relay connection establishment request;
  • the allocation module 602 is also configured to confirm to the first remote terminal that the first remote terminal continues to use the second target identifier, or re-allocate the first target identifier to the first remote terminal. symbol.
  • the second transceiver module 606 receives the second target identifier reported by the first remote terminal, including:
  • the second transceiver module 606 is further configured to forward the message carrying the identifier of the first remote terminal after adding the identifier of the first remote terminal to the discovery message.
  • the discovery message is further configured to forward the message carrying the identifier of the first remote terminal after adding the identifier of the first remote terminal to the discovery message.
  • the allocation module 602 is also configured to notify a second remote terminal of the first target identifier allocated to the first remote terminal, wherein the second remote terminal The terminal is the communication counterpart of the first remote terminal.
  • the allocation module 602 is further configured to notify the first remote terminal of the third target identifier allocated to the second remote terminal.
  • the device for allocating the identifier of the remote terminal in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of relay terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • the apparatus for allocating identifiers of remote terminals provided by embodiments of the present application can implement various processes implemented by the relay terminal in the method embodiment of Figure 4 and achieve the same technical effect. To avoid duplication, details will not be described here.
  • Figure 7 shows a schematic structural diagram of a device for selecting a remote terminal identifier provided by an embodiment of the present application.
  • the device 700 mainly includes: a sending module 701, a receiving module 702 and a selecting module 703.
  • the sending module 701 is used to send first indication information to the relay terminal, where the first indication information is used to indicate at least one candidate identifier;
  • the receiving module 702 is used to The terminal receives a message sent by the relay terminal, wherein the message carries at least one candidate identifier and tag information, and the tag information is used to indicate whether the at least one candidate identifier is available;
  • the selection module 703 Select an available first target identifier from the at least one candidate identifier as the identifier of the first remote terminal according to the mark information.
  • the device for selecting the identifier of the remote terminal in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of remote terminals 12 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • the remote terminal identifier allocation device provided by the embodiment of the present application can implement each process implemented by the first remote terminal in the method embodiment of Figure 5 and achieve the same technical effect. To avoid duplication, details will not be described here.
  • this embodiment of the present application also provides a communication device 800, which includes a processor 801 and a memory 802.
  • the memory 802 stores programs or instructions that can be run on the processor 801, for example.
  • the communication device 800 is a relay terminal
  • the program or instruction is executed by the processor 801
  • each step of the method embodiment of the remote terminal identifier is implemented, and the same technical effect can be achieved.
  • I won’t go into details here.
  • Embodiments of the present application also provide a terminal, including a processor and a communication interface.
  • the processor is configured to implement each step of the above embodiment of the method for allocating an identifier of a remote terminal, or to implement the above method for selecting an identifier of a remote terminal.
  • the communication interface is used to communicate with external devices.
  • This terminal embodiment corresponds to the above-mentioned relay terminal side method embodiment or corresponds to the above-mentioned first remote terminal side method embodiment.
  • FIG. 9 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
  • the terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, a processor 910 and other components. .
  • the terminal 900 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processor 910 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal structure shown in FIG. 9 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown in the figure, or may combine certain components, or arrange different components, which will not be described again here.
  • the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042.
  • the graphics processor 9041 Image data of still pictures or videos obtained by an image capture device (such as a camera) is processed in a video capture mode or an image capture mode.
  • the display unit 906 may include a display panel 9061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 907 includes a touch panel 9071 and other input devices 9072. Touch panel 9071, also known as touch screen.
  • the touch panel 9071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 9072 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.
  • the radio frequency unit 901 receives the downlink data from the network side device and then sends it to the processor 910 for processing; in addition, it sends the uplink data to the network side device.
  • the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.
  • Memory 909 may be used to store software programs or instructions as well as various data.
  • the memory 909 may mainly include a program or instruction storage area and a data storage area, where the program or instruction area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, an image playback function, etc.), and the like.
  • the memory 909 may include high-speed random access memory and may also include non-volatile memory, where the non-volatile memory may be a read-only memory (Read-Only Memory, ROM) or a programmable read-only memory (Programmable ROM).
  • PROM erasable programmable read-only memory
  • Erasable PROM EPROM
  • Electrically erasable programmable read-only memory Electrically EPROM, EEPROM
  • flash memory For example, at least one disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 910 may include one or more processing units; optionally, the processor 910 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 910.
  • the processor 910 is configured to determine at least one candidate identifier; and allocate a first target identifier among the at least one candidate identifier to the first remote terminal.
  • the radio frequency unit 901 is configured to send first indication information to the relay terminal, wherein the first indication information is used to indicate at least one candidate identifier; and receive a message sent by the relay terminal, wherein the message carries at least one candidate identifier and tag information, and the tag information is used to indicate whether the at least one candidate identifier is available;
  • the processor 910 is configured to identify the at least one candidate identifier from the at least one candidate identifier according to the tag information. Select an available first target identifier from among the identifiers as the identifier of the first remote terminal.
  • Embodiments of the present application also provide a readable storage medium, with a program or instructions stored on the readable storage medium.
  • a program or instructions stored on the readable storage medium.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage media includes computer readable storage media, such as computer read-only memory ROM, random access memory (Random Access Memory, RAM), magnetic disks or optical disks.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the identifier of the remote terminal.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application further provide a computer program/program product.
  • the computer program/program product is stored in a storage medium.
  • the computer program/program product is executed by at least one processor to realize the identification of the above-mentioned remote terminal.
  • Each process of the symbol allocation method embodiment can achieve the same technical effect. To avoid duplication, it will not be described again here.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

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Abstract

本申请公开了一种远端终端的识别符的分配方法、装置及终端,属于无线通信领域,本申请实施例的远端终端的识别符的分配方法,包括:中继终端确定至少一个候选识别符;所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,其中,所述第一远端终端为接入所述中继终端服务的远端终端。

Description

远端终端的识别符的分配方法、装置及终端
交叉引用
本发明要求在2022年03月25日提交中国专利局、申请号为202210301818.1、发明名称为“远端终端的识别符的分配方法、装置及终端”的中国专利申请的优先权,该申请的全部内容通过引用结合在本发明中。
技术领域
本申请属于无线通信技术领域,具体涉及一种远端终端的识别符的分配方法、装置及终端。
背景技术
当两个远端终端(Remote User Equipment,Remote UE)之间由于旁链路无线信道质量太差,而不能直接建立旁链路通信时,其中一个远端终端可以寻找合适的中继终端(Relay UE),通过中继终端建立中继通道。两个远端终端之间的通信通过中继终端进行数据转发实现,从而实现终端到终端(UE to UE,U2U)通信。
在层2(Layer 2,L2)中继网络中,网络设备作为网络架构中的主要控制节点,远端终端用于中继传输的识别符是由网络设备分配的,通过在数据包的包头中携带该识别符,使得中继终端可识别需要转发到该远端终端的数据包,也可以使得网络设备可识别出来自该远端终端的数据包。
但是在L2U2U中继结构中,中继终端和远端终端与网络设备之间存在无线连接可能断开,从而使得网络设备无法为远端终端分配识别符。
发明内容
本申请实施例提供一种远端终端的识别符的分配方法、装置及终端,能够解决中继终端和远端终端与网络设备之间的无线连接断开而导致网络设备无法为远端终端分配识别符的问题。
第一方面,提供了一种远端终端的识别符的分配方法,包括:中继终端确定至少一个候选识别符;所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,其中,所述第一远端终端为接入所述中继终端服务的远端终端。
第二方面,提供了一种远端终端的识别符的分配装置,包括:确定模块,用于确定至少一个候选识别符;分配模块,用于将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端。
第三方面,提供了一种远端终端的识别符的选择方法,包括:第一远端终端向中继终端发送第一指示信息,其中,所述第一指示信息用于指示至少一个候选识别符;所述第一远端终端接收所述中继终端发送的消息,其中,所述消息中携带有至少一个候选识别符和标记信息,所述标记信息用于指示所述至少一个候选识别符中的是否可用;所述第一远端终端根据所述标记信息,从所述至少一个候选识别符中选择一个可用的第一目标识别符作为所述第一远端终端的识别符。
第四方面,提供了一种远端终端的识别符的选择装置,包括:发送模块,用于向中继终端发送第一指示信息,其中,所述第一指示信息用于指示至少一个候选识别符;接收模块,用于终端接收所述中继终端发送的消息,其中,所述消息中携带有至少一个候选识别符和标记信息,所述标记信息用于指示所述至少一个候选识别符中的是否可用;选择模块,用于根据所述标记信息,从所述至少一个候选识别符中选择一个可用的第一目标识别符作为所述第一远端终端的识别符。
第五方面,提供了一种终端,该终端包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤,或者实现如第三方面所述的方法的步骤。
第六方面,提供了一种终端,包括处理器及通信接口,其中,所述处理器用于实现如第一方面所述的方法的步骤,或者实现如第三方面所述的方法的步骤,所述通信接口用于与外部设备进行通信。
第七方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤,或者实现如第三方面所述的方法的步骤。
第八方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的方法的步骤,或者实现如第三方面所述的方法的步骤。
第九方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面所述的方法的步骤,或者实现如第三方面所述的方法的步骤。
在本申请实施例中,中继终端确定至少一个候选识别符,并将所述至少一个候选识别符中的一个第一目标识别符分配给接入该中继终端的远端终端, 从而使得即使中继终端和远端终端与网络设备的无线连接断开,也能够为远端终端分配识别符。
附图说明
图1示出本申请实施例可应用的一种无线通信系统的框图;
图2示出本申请实施例可应用的一种U2U网络架构示意图;
图3a示出一种层2中继的用户面协议栈的示意图;
图3b示出一种层2中继的控制面协议栈的示意图;
图4示出本申请实施例提供的远端终端的识别符的分配方法的一种流程示意图;
图5示出本申请实施例提供的远端终端的识别符的选择方法的一种流程示意图
图6示出本申请实施例提供的远端终端的识别符的分配装置的一种结构示意图;
图7示出本申请实施例提供的远端终端的识别符的选择装置的一种结构示意图;
图8示出本申请实施例提供的一种通信设备的结构示意图;
图9示出本申请实施例提供的一种终端的硬件结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、 时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括中继终端11、网络侧设备12和远端终端13。在本申请实施例中,远端终端13与中继终端11之间通过PC5(副链路或中继链路)接口进行通信,中继终端11与网络侧设备12之间通过Uu接口进行通信。
其中,中继终端11也可以称作中继(relay)终端设备或者中继用户终端(User Equipment,UE),远端终端13也可以称作远端终端设备或者远端(remote)UE,中继终端11和远端终端13可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、可穿戴式设备(Wearable Device)或车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)等终端侧设备,可穿戴式设备包括:手环、耳机、眼镜等。需要说明的是,在本申请实施例并不限定中继终端11和远端终端13的具体类型。网络侧设备12可以是网络设备或核心网,其中,网络设备可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、无线电网络设备、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、无线局域网(Wireless Local Area Network,WLAN)接入点、无线保真(Wireless Fidelity,WiFi)节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述网络设备不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的网络设备为例,但是并不限定网络设备的具体类型。
图2示出本申请实施例可应用的一种U2U网络架构示意图,如图2所示,当远端UE1和远端UE2之间由于旁链路无线信道质量太差而不能直接建立旁链路通信时,远端UE1或远端UE2可以寻找合适的中继UE,通过中继 UE建立中继通道。远端UE1和远端UE2之间通信通过中继UE进行数据转发实现。
在相关技术中,层2中继的用户面协议栈和控制面协议栈可以分别如图3a和图3b所示。其中的中继适配层(Sidelink Relay Adaptation Protocol,SRAP)具有路由和标识转发数据包的功能,其协议头可以包括:
在两个远端UE之间转发数据包时的源远端UE和/或目的远端UE的识别符;
源远端UE和目的远端UE之间的旁链路无线承载标识;
中继通道的路由功能的标识信息,例如中继通道的标识。
根据用户面协议构架,当一个远端UE的SRAP层协议实体收到待转发分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)协议数据单元(Protocol Data Unit,PDU)后,确定其目的远端UE的标识或地址,生成SRAP层协议头,加载在该PDCP PDU之前,形成SRAP PDU,当中继UE收到SRAP PDU后,根据该SRAP PDU的SRAP包头信息,确定目的远端UE并将该SRAP PDU转发给目的远端UE。
根据控制面协议构架,两个远端UE之间的无线资源控制(Radio Resource Control,RRC)信息和数据采用类似基于SRAP协议的中继传输方法。接收远端UE根据SRAP PDU携带的SRAP包头携带的无线承载指示,可以识别出RRC消息并进行相应的处理。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的远端终端的识别符的分配方案进行详细地说明。
图4示出本申请实施例中的远端终端的识别符的分配方法的一种流程示意图,该方法400可以由中继终端执行。换言之,所述方法可以由安装在中继终端上的软件或硬件来执行。如图4所示,该方法可以包括以下步骤。
S410,中继终端确定至少一个候选识别符。
S412,所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,其中,所述第一远端终端为接入所述中继终端服务的远端终端。
在本申请实施例中,远端终端的识别符又可以称作远端终端的SRAP地址、SRAP识别符、远端终端的局部识别符、远端终端的U2U网络地址等。
在本申请实施例中,所述中继终端将第一目标识别符分配给第一远端终端,也就是说,中继终端建立了第一目标识别符与第一远端终端之间的绑定关系,可以通过第一目标识别符来标识第一远端终端。
在本申请实施例提供的技术方案中,中继终端确定至少一个候选识别符,并将所述至少一个候选识别符中的一个第一目标识别符分配给接入该中继终 端的远端终端,从而使得即使中继终端和远端终端与网络设备的无线连接断开,也能够为远端终端分配识别符。进而使得第一远端UE可以获取用于在L2U2U网络中自身寻址的识别符,并降低U2U网络中不同远端UE之间发生识别符碰撞的概率。
在本申请实施例中,中继终端可以根据网络设备的配置、预配置、第一远端终端的指示等,确定所述至少一个候选识别符,因此,在一个可能的实现方式中,S410可以包括以下(一)至(三)中的至少之一。
所述中继终端从网络设备(例如,基站)获取第一目标配置参数,根据所述第一目标配置参数,得到所述至少一个候选识别符,其中,所述第一目标配置参数用于配置可供所述中继终端分配的候选识别符的第一值域,所述第一值域包括识别符全值域或识别符全值域的一个子域。
例如,中继UE的服务网络设备可以为中继UE分配可供分配的识别符列表或范围,中继UE在该列表或范围内为远端UE分配识别符。例如,假设识别符全值域为[0,255],则中继终端的服务网络设备可以配置第一目标配置参数,该第一目标配置参数配置可供所述中继终端分配的候选识别的第一值域为[0,100],或者,第一目标配置参数配置可供所述中继终端分配的候选识别的第一值域为[0,255],或者,第一目标配置参数配置可供所述中继终端分配的候选识别的第一值域也可以为一个列表,例如,{0,2,4,6,8,10}。
在具体应用中,中继终端可能作为多个远端终端对的中继终端,例如,中继终端可以作为远端UE1与远端UE2之间的中继终端,也可以作为远端UE3与远端UE4之间的中继终端,因此,可能需要为该多个远端终端对中的各个远端终端分配识别符,在多个远端终端对的数量较多的情况下,第一目标配置参数配置的候选识别符可能被分配完,或者可能不够用,为了使得中继终端可以继续为接入的各个远端终端分配识别符,在一个可能的实现方式中,在所述中继终端从网络设备获取第一目标配置参数之后,所述方法还包括:在根据所述第一目标配置参数得到的候选识别符已使用完或者根据所述第一目标配置参数得到的候选识别符已使用的比例超过预定门限的情况下,所述中继终端请求所述网络设备增加可供使用的候选识别符。例如,当服务网络设备预分配给中继UE的识别符已经用完或者使用比例超过预定门限时,中继UE可以请求网络设备增加可供分配的识别符。
在一个可能的实现方式中,为了使得网络设备获知配置给所述中继终端的候选识别符的分配情况,在所述中继终端从网络设备获取第一目标配置参数之后,所述方法还包括:所述中继终端向所述网络设备发送分配信息,其中,所述分配信息包括以下至少之一:根据所述第一目标配置参数得到的候 选识别符中已使用的数量、根据所述第一目标配置参数得到的候选识别符中未使用的数量、根据所述第一目标配置参数得到的候选识别符中已使用的比例、根据所述第一目标配置参数得到的候选识别符中未使用的比例。例如,中继UE可以向网络设备汇报预分配的识别符的已分配比例或数量,未分配的识别符的数量或网络设备预分配识别符的比例等。
在上述实现方式中,中继终端可以主动发送所述分配信息,或者,也可以在网络设备的请求之下发送所述分配信息,以使网络设备获知候选标识符被分配的情况。因此,在一个可能的实现方式中,在所述中继终端向所述网络设备发送分配信息之前,所述方法还包括:所述中继终端接收所述网络设备发送的第一请求,其中,所述第一请求用于请求所述中继终端汇报所述分配信息。
所述中继终端根据预配置的第二目标配置参数,得到所述至少一个候选识别符。
在该可能的实现方式中,可以预先在中继终端中配置第二目标配置参数,由中继终端根据该第二目标配置参数,得到所述至少一个候选识别符。例如,第二目标配置参数可以配置可供分配的候选识别符的全值域(例如,0~255),或者,也可以配置可供分配的多个子域(例如,子域列表),中继终端确定所述至少一个候选识别符为全值域中的所有识别符,或者,中继终端确定所述至少一个候选识别符为全值域的一个子域,或者为配置的多个子域列表中的一个子域。或者,第二目标配置参数也可以直接配置一个子域(例如,0~100),中继终端确定所述至少一个候选识别符为该子域中的识别符。
在根据第二目标配置参数确定所述至少一个候选识别符为可供分配的候选识别符的一个子域时,可以是在一个子域列表中随机选择一个子域或根据某种预配置的规则确定,例如,根据中继UE的某一标识与子域的映射关系来选择。例如,根据中继终端的小区无线网络临时标识(Cell RNTI,C-RNTI)或非激活态RNTI(Inactive RNTI,I-RNTI)与子域的映射关系来选择,例如,在子域列表中选择第mod(C-RNTI,子域个数)个子域。
在本申请实施例中,网络设备可以通过显式或隐式地使得中继终端自主确定所述至少一个候选识别符。因此,在一个可能的实现方式中,在所述中继终端根据预配置的第二目标配置参数,确定所述至少一个候选识别符之前,所述方法还包括:所述中继终端接收所述网络设备发送的第二指示信息,其中,所述第二指示信息指示允许所述中继终端为远端终端分配识别符。
在一个可能的实现方式中,所述中继终端接收所述网络设备发送的第二指示信息可以包括以下之一:
所述中继终端接收所述网络设备广播的系统消息,其中,所述系统消息 中携带所述第二指示信息;
例如,网络设备可以通过系统消息使能中继UE自主为远端UE分配识别符,例如,网络设备可以在系统信息块(System Information Block,SIB)12中增加指示域,用于指示中继UE是否可以自主为远端UE分配识别符。
所述中继终端接收所述网络设备发送的终端专用信令,其中,所述终端专用信令中携带所述第二指示信息。例如,网络设备可以通过非接入层(Non-Access Stratum,NAS)信令指示中继UE是否可以自主为远端UE分配识别符。
在一个可能的实现方式中,所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,可以包括:所述中继终端从根据所述第一目标配置参数得到的至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
可选地,所述中继终端可以在小区的覆盖之内,且从所述网络设备获取到所述第一目标配置参数的情况下,所述中继终端从所述至少一个候选识别符中选择一个未使用的候选识别符(即未被中继终端分配给其它远端终端的识别符)作为所述第一目标识别符分配给所述第一远端终端。
可选地,所述中继终端在小区的覆盖之内,且未从所述网络设备获取到所述第一目标配置参数的情况下,所述中继终端可以向所述网络设备发送第二请求,其中,所述第二请求用于请求所述网络设备为所述中继终端提供所述第一目标配置参数,然后接收所述网络设备分配的所述第一目标配置参数。
例如,当中继UE在小区的覆盖之内时,中继UE按照网络设备提供的远端识别符分配配置(即上述的第一目标配置参数)进行远端UE的识别符分配。如果中继UE在小区的覆盖范围之内,但所述小区未提供远端UE的识别符分配配置,则该中继UE可以向该小区请求提供远端UE的识别符分配配置。可选地,所述小区是支持给中继UE配置远端UE识别符分配配置的小区。
在一个可能的实现方式中,所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端也可以包括:所述中继终端从根据所述第二目标配置参数得到的至少一个候选识别符中选择一个未被使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
可选地,在所述中继终端在小区的覆盖之外的情况下,所述中继终端可以从所述至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
可选地,中继终端可以在发现(discovery)流程中为第一远端终端分配所述第一目标识别符,例如,在发现(discovery)流程中分配,中继UE在 收到第一远端UE请求转发发现消息后,在随后发给该远端UE的发现信息的响应消息中携带配置给该远端UE的识别符。
或者,中继UE在收到第一远端UE的发现消息后,为所述第一远端UE分配第一目标识别符,将所述第一目标识别符携带在发现消息中,然后转发携带第一目标识别符的发现消息,第一远端UE的通信对端即第二远端UE在接收到携带第一目标识别符的发现消息后,在随后发给该远端UE的发现信息的响应发现消息中携带所述第一目标识别符,中继UE在接收到响应发现消息后,将该响应发现消息转发给第一远端UE,从而使得第一远端UE可以获知中继终端为其分配的识别符。
或者,中继终端也可以直接向第一远端终端指示所述第一目标识别符,例如,中继终端可以利用旁链路无线资源控制(PC5RRC)信令流程向第一远端终端发送所述第一目标识别符,例如,在第一远端UE和中继UE建立中继旁链路过程中,中继UE通过PC5RRC信令配置第一远端UE的识别符。
所述中继终端接收所述第一远端终端发送的第一指示信息,根据所述第一指示信息得到所述至少一个候选识别符,其中,所述第一指示信息用于指示至少一个识别符。
在该可能的实现方式中,第一远端UE可以自主随机确定若干候选识别符,在发起中继信道建立请求时,产生一个或多个可供自身使用候选识别符,向中继终端发送第一指示信息,该指示信息用于指示第一远端终端确定的若干候选识别符,中继终端根据第一指示信息,确定所述至少一个候选识别符。
例如,中继终端可以第一指示信息指示的一个或多个识别符作为所述至少一个候选识别符,或者,中继终端也可以将第一指示信息指示的一个或多个识别符发送给第二远端终端(即第一远端终端的通信对端),第二远端终端可以判断第一指示信息指示的一个或多个识别符中是否包含第二远端终端的识别符,如果是,则指示给中继终端,中继终端剔除第一指示信息指示的一个或多个识别符中的第二远端终端的识别符后,确定剩下的一个或多个识别符为所述至少一个候选识别符。
在一个可能的实现方式中,所述中继终端可以保存识别符占用信息,在该识别符占用信息记录所述中继终端已使用的识别符,例如,中继终端已分配给远端终端的识别符。在S412中,中继终端可以根据保存的识别符占用信息,从根据所述第一指示信息得到的至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
在一个可能的实现方式中,中继终端还可以联合第一远端终端为所述第一远端终端分配第一目标识别符。因此,在该可能的实现方式中,从所述至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符 分配给所述第一远端终端可以包括:
步骤1,所述中继终端根据所述识别符占用信息,标记所述至少一个候选识别符中未使用的识别符和/或标识所述至少一个候选识别符中已使用的识别符;
步骤2,所述中继终端将标识后的所述至少一个候选识别符发送给所述第一远端终端;
步骤3,所述中继终端接收所述第一远端终端发送的通知,其中,所述通知中携带有所述第一远端终端选择的所述第一目标识别符;
步骤4,所述中继终端确定将所述第一目标识别符分配给所述第一远端终端。
在该可能的实现方式中,中继终端可以根据自身获取的识别符占用信息,在所述候选识别符中标记可用的识别符或者标记已经占用的识别符,并把该消息发送给第一远端UE,由第一远端UE确定自身将使用的第一目标识别符,并将第一目标识别符报告给中继UE。可选地,中继终端可以在第一远端终端的发现流程中实现上述步骤,或者也可以通过旁链路无线资源控制(PC5-RRC)流程实现。
在一个或多个可能的实现方式中,在所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端之后,所述方法还可以包括:
步骤1,所述中继终端在识别符占用信息中记录所述第一目标识别符,其中,所述识别符占用信息用于记录所述中继终端已使用的识别符;
步骤2,所述中继终端删除所述至少一个候选识别符中的所述第一目标识别符。
例如,中继UE可以维护一个远端UE识别符列表,保存已经占用或已经分配的识别符列表和可供分配的识别符列表;中继UE将分配给远端UE的识别符列入已经占用的识别符列表,将未分配的或者释放的识别符列入可供分配的识别符列表。
在实际应用中,在中继终端为第一远端终端分配第一目标识别符之后,还可以对第一目标识别符进行释放,以增加识别符的利用率。因此,在一个可能的实现方式中,在所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端之后,所述方法还可以包括:
在预定情况下,所述中继终端释放所述第一目标识别符,例如,中继终端可以删除第一目标识别符与第一远端终端的绑定关系,即第一目标识别符与第一远端终端解绑;
所述中继终端将释放的所述第一目标识别符重新列为候选识别符。例如, 在可供分配的识别符列表中增加所述第一目标识别符。
可选地,所述预定情况包括但不限于以下之一:
所述中继终端释放与所述第一远端终端的中继旁链路之后;例如,中继UE在释放与远端UE的中继旁链路后,可以确定释放该远端UE的识别符。
所述中继终端接收到来自所述第一远端终端的中继旁链路释放请求之后;例如,中继UE在接收到远端UE发送的中继旁链路释放请求后,确定将释放该中继旁链路,因此,可以释放该远端UE的识别符。
所述中继终端与所述第一远端终端发生中继旁链路连接失败之后;例如,中继UE在为远端UE分配识别后,与该远端UE发生中继旁链路连接失败后,可以确定释放该远端UE的识别符。
所述中继终端在通知所述第一远端终端发生目标事件之后,其中,所述目标事件包括以下之一:所述中继终端与网络设备之间的链路发生无线链路失败、所述中继终端与网络设备之间的链路发生切换失败;例如,中继UE在通知UE发生中继UE与服务网络设备之间的Uu链路发生无线链路失败(Radio Link Failure,RLF)或切换失败后,可以确定收回识别符。
所述中继终端确定所述第一远端终端在预设时间内未使用所述第一目标识别符;例如,中继UE在确定一个远端UE在一个预设时间段内未使用某个识别符,可自主释放该识别符。
所述中继终端为所述第一远端终端重配置与所述第一目标识别符不同的识别符。例如,中继终端在为第一远端终端分配第一目标识别符后,由于某种原因,又为该远端终端分配了一个新的识别符,则可以确定释放之前分配的第一目标识别符。
在一个可能的实现方式中,所述中继终端释放所述第一目标识别符可以包括:所述中继终端向所述第一远端终端发送通知,通知所述第一远端终端释放所述第一目标识别符。例如,中继UE可以通过PC5-RRC信令通知一个远端UE,释放已经分配的识别符。
在一个可能的实现方式中,所述中继终端释放所述第一目标识别符,还可以包括:述中继终端在识别符占用信息中删除所述第一目标识别符,其中,所述识别符占用信息用于记录所述中继终端已使用的识别符;所述中继终端在所述至少一个候选识别符中增加所述第一目标识别符。例如,在已经占用或已经分配的识别符列表中删除所述第一目标识别符,在可供分配的识别符列表中增加所述第一目标识别符。
在一个可能的实现方式中,所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,包括:
步骤1,所述中继终端接收来自所述第一远端终端的消息,其中,所述 消息请求所述中继终端为所述第一远端终端分配的识别符。
其中,所述消息可以显示的请求中继终端为所述第一远端终端分配的识别符,例如,在消息中携带有一个请求信息,该请求信息用于请求中继终端为所述第一远端终端分配的识别。或者,所述消息也可以隐性的请求中继终端为所述第一远端终端分配的识别符。例如,远端UE在发给中继UE转发的中继消息中未携带识别符,则中继UE可以为该远端UE分配识别符。
步骤2,所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端。
可选地,在所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端之后,所述中继终端在所述消息中添加所述第一目标识别符之后,转发携带所述第一目标识别符的所述消息。例如,中继UE将为该远端UE分配的识别符添加到转发的发现信号中,再进行转发。
在一个可能的实现方式中,所述方法还可以包括:
步骤1,在所述第一远端终端发起的中继连接建立过程中,所述中继终端接收所述第一远端终端报告的第二目标识别符,所述第二目标识别符为所述中继终端在接收所述中继连接建立请求前为所述第一远端终端分配的识别符;
步骤2,所述中继终端向所述第一远端终端确认所述第一远端终端继续使用所述第二目标识别符,或者,所述中继终端重新为所述第一远端终端分配第一目标识别符。
通过该可能的实现方式,在第一远端终端已有由中继终端分配的第二目标识别符的情况下,第一远端终端可以在发起中继连接建立请求的过程中,向中继终端报告,中继终端可以向第一远端终端确认继续使用该第二目标识别符,也可以重新为该第一远端终端分配第一目标识别符,从而使得第一远端终端与中继终端的理解可以一致。
可选地,第一远端终端可以通过发现消息报告第二目标识别符,或者,也可以通过PC5RRC信令报告第二目标识别符。因此,所述中继终端接收所述第一远端终端报告的第二目标识别符可以包括:
所述中继终端接收所述第一远端终端发送的发现消息,其中,所述发现消息中携带有所述第二目标识别符;或者,
所述中继终端接收所述第一远端终端发送的旁链路无线资源控制信令,其中,所述旁链路无线资源控制信令中携带有所述第二目标识别符。
在一个可能的实现方式中,所述中继终端接收所述第一远端终端发送的发现消息之后,所述方法还包括:所述中继终端在所述发现消息中添加所述第一远端终端的识别符(例如,第二目标识别符或第一目标识别符)后,转 发携带所述第一远端终端的识别符的所述发现消息。
例如,一个远端UE在通过中继UE发起中继连接建立请求时,该远端UE可能已经有由该中继UE在此前分配的标识符,此时为避免一个远端UE占用多个识别符,远端UE可以向中继UE报告已经分配的识别符;中继UE可以确认该远端UE重用现有的识别符,也可以给该UE分配新的识别符。该识别符可以在发现信号中携带,也可以利用后续PC5-RRC信令通知中继UE。可选地,当该识别符可以在发现信号中携带时,中继UE在为该远端UE转发发现信号时,也同时转发这识别符。
可选地,当远端UE之前从一个中继UE获得过识别符,自上次获得识别符后已经过了第一预配置时间,或者自从上次使用该识别符已经过了第二预配置时间,则确定该识别符失效,远端UE在发起中继通道建立请求时,不报告此识别符或需要重新申请识别符。
在一个或多个可能的实现方式中,在所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端之后,所述方法还可以包括:所述中继终端将分配给所述第一远端终端的所述第一目标识别符通知给第二远端终端,其中,所述第二远端终端为所述第一远端终端的通信对端。
例如,中继终端可以将第一目标识别符携带在第一远端终端发送的发现消息中通知给第二远端终端。
在一个可能的实现方式中,所述方法还可以包括:所述中继终端将分配给所述第二远端终端的第三目标识别符通知给所述第一远端终端。例如,中继终端在向第二远端终端转发发现消息后,接收第二远端终端发送的响应发现消息,如果该响应发现消息中未携带第二远端终端的识别符,则中继终端可以为第二远端终端分配第三目标识别符,并在向第一远端终端发送的响应发现消息中携带该第三目标识别符。
在本申请实施例中,如果远端UE支持旁链路中继适配层功能,则可以由远端UE生成SRAP PDU,即远端在PDCP PDU前添加SRAP包头,SRAP包头包含路由信息,包括自身识别符、对端远端UE识别符、无线承载识别符等;这一方法要求远端UE。
或者,中继UE可以在收到来自一个远端UE(远端UE1)的PDCP PDU后,在该PDCP PDU上添加SRAP包头,SRAP包头包含路由信息,包括该远端UE(即远端UE1)的识别符,对端远端UE(即远端UE2)识别符,无线承载识别符等;中继UE在收到对端远端UE(即远端UE2)的SRAP PDU后,根据其SRAP包头,确定该SRAP PDU的目的远端UE是否为干远端UE(即远端UE1),如果是,则移除该SRAP PDU的SRAP包头,将得到的PDCP PDU发给该远端UE(即远端UE1)。采用该方式,远端UE1可以不支持旁 链路中继适配层功能。
通过本申请实施例提供的技术方案,远端UE可以获取用于在L2U2U网络中自身寻址的识别符,并降低U2U网络中不同远端UE之间发生识别符碰撞的概率。
图5示出本申请实施例中的远端终端的识别符的选择方法的一种流程示意图,该方法500可以由第一远端终端执行。换言之,所述方法可以由安装在中继终端上的软件或硬件来执行。如图5所示,该方法可以包括以下步骤。
S510,第一远端终端向中继终端发送第一指示信息,其中,所述第一指示信息用于指示至少一个候选识别符。
例如,所述第一远端终端可以向所述中继终端发送发现消息,其中,所述发现消息中携带所述第一指示信息。
S512,所述第一远端终端接收所述中继终端发送的消息,其中,所述消息中携带有至少一个候选识别符和标记信息,所述标记信息用于指示所述至少一个候选识别符中的是否可用。
例如,中继终端可以在接收到上述发现消息对应的响应发现消息后,向第一远端终端转发携带有至少一个候选识别符和标记信息的响应发现消息。
S514,所述第一远端终端根据所述标记信息,从所述至少一个候选识别符中选择一个可用的第一目标识别符作为所述第一远端终端的识别符。
在一个可能的实现方式中,为了使得中继终端可以获知第一远端终端选择的识别符,以避免中继终端将该识别符分配给其它远端终端,在从所述至少一个候选识别符中选择一个可用的第一目标识别符作为所述第一远端终端的识别符之后,所述方法还可以包括:所述第一远端终端向所述中继终端发送的通知,其中,所述通知中携带有所述第一远端终端选择的所述第一目标识别符。
本申请实施例提供的远端终端的识别符的分配方法,执行主体可以为远端终端的识别符的分配装置。本申请实施例中以远端终端的识别符的分配装置执行远端终端的识别符的分配方法为例,说明本申请实施例提供的远端终端的识别符的分配装置。
图6示出本申请实施例提供的远端终端的识别符的分配装置的一种结构示意图,如图6所示,该装置600主要包括确定模块601和分配模块602。
在本申请实施例中,确定模块601,用于确定至少一个候选识别符;分配模块602,用于将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端。
在一个可能的实现方式中,所述确定模块601确定至少一个候选识别符,包括以下至少之一:
所述中继终端从网络设备获取第一目标配置参数,根据所述第一目标配置参数,得到所述至少一个候选识别符,其中,所述第一目标配置参数用于配置可供所述中继终端分配的候选识别符的第一值域,所述第一值域包括识别符全值域或识别符全值域的一个子域;
所述中继终端根据预配置的第二目标配置参数,得到所述至少一个候选识别符;
所述中继终端接收所述第一远端终端发送的第一指示信息,根据所述第一指示信息得到所述至少一个候选识别符,其中,所述第一指示信息用于指示至少一个识别符。
在一个可能的实现方式中,如图6所示,所述装置还可以包括:
第一收发模块603,用于在根据所述第一目标配置参数得到的候选识别符已使用完或者根据所述第一目标配置参数得到的候选识别符已使用的比例超过预定门限的情况下,所述中继终端请求所述网络设备增加可供使用的候选识别符;和/或,
所述第一收发模块603,用于向所述网络设备发送分配信息,其中,所述分配信息包括以下至少之一:根据所述第一目标配置参数得到的候选识别符中已使用的数量、根据所述第一目标配置参数得到的候选识别符中未使用的数量、根据所述第一目标配置参数得到的候选识别符中已使用的比例、根据所述第一目标配置参数得到的候选识别符中未使用的比例。
在一个可能的实现方式中,所述第一收发模块603,还用于接收所述网络设备发送的第一请求,其中,所述第一请求用于请求所述中继终端汇报所述分配信息。
在一个可能的实现方式中,所述确定模块601还用于接收所述网络设备发送的第二指示信息,其中,所述第二指示信息指示允许所述中继终端为远端终端分配识别符。
在一个可能的实现方式中,所述确定模块601接收所述网络设备发送的第二指示信息包括:
接收所述网络设备广播的系统消息,其中,所述系统消息中携带所述第二指示信息;或者,
接收所述网络设备发送的终端专用信令,其中,所述终端专用信令中携带所述第二指示信息。
在一个可能的实现方式中,所述分配模块602将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,包括:从根据所述第一目标配置参数得到的至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
在一个可能的实现方式中,所述分配模块602从所述至少一个第一候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端,包括:
所述中继终端在小区的覆盖之内,且所述中继终端从所述网络设备获取到所述第一目标配置参数的情况下,所述中继终端从所述至少一个第一候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
在一个可能的实现方式中,所述分配模块602还用于:
在小区的覆盖之内,且未从所述网络设备获取到所述第一目标配置参数的情况下,所述中继终端向所述网络设备发送第二请求,其中,所述第二请求用于请求所述网络设备为所述中继终端提供所述第一目标配置参数;
接收所述网络设备分配的所述第一目标配置参数。
在一个可能的实现方式中,所述分配模块602将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,包括:从根据所述第二目标配置参数得到的至少一个候选识别符中选择一个未被使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
在一个可能的实现方式中,所述分配模块602从所述至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端,包括:
在小区的覆盖之外的情况下,所述中继终端从所述至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
在一个可能的实现方式中,所述分配模块将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,包括:
所述中继终端根据保存的识别符占用信息,从根据所述第一指示信息得到的至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
在一个可能的实现方式中,所述分配模块602从所述至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端,包括:
根据所述识别符占用信息,标记所述至少一个候选识别符中未使用的识别符和/或标识所述至少一个候选识别符中已使用的识别符;
将标识后的所述至少一个候选识别符发送给所述第一远端终端;
接收所述第一远端终端发送的通知,其中,所述通知中携带有所述第一远端终端选择的所述第一目标识别符;
确定将所述第一目标识别符分配给所述第一远端终端。
在一个可能的实现方式中,如图6所示,所述装置还可以包括:存储模块604,用于在识别符占用信息中记录所述第一目标识别符,其中,所述识别符占用信息用于记录所述中继终端已使用的识别符;删除所述至少一个候选识别符中的所述第一目标识别符。
在一个可能的实现方式中,如图6所示,所述装置还包括:释放模块605,用于在预定情况下,释放所述第一目标识别符,并将释放的所述第一目标识别符重新列为候选识别符。
在一个可能的实现方式中,所述预定情况包括以下之一:
释放与所述第一远端终端的中继旁链路之后;
接收到来自所述第一远端终端的中继旁链路释放请求之后;
与所述第一远端终端发生中继旁链路连接失败之后;
在通知所述第一远端终端发生目标事件之后,其中,所述目标事件包括以下之一:与网络设备之间的链路发生无线链路失败、与网络设备之间的链路发生切换失败;
确定所述第一远端终端在预设时间内未使用所述第一目标识别符;
为所述第一远端终端重配置与所述第一目标识别符不同的识别符。
在一个可能的实现方式中,所述释放模块605释放所述第一目标识别符,包括:向所述第一远端终端发送通知,通知所述第一远端终端释放所述第一目标识别符。
在一个可能的实现方式中,所述释放模块605释放所述第一目标识别符,还包括:
在识别符占用信息中删除所述第一目标识别符,其中,所述识别符占用信息用于记录所述中继终端已使用的识别符;
在所述至少一个候选识别符中增加所述第一目标识别符。
在一个可能的实现方式中,所述分配模块602将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,包括:
接收来自所述第一远端终端的消息,其中,所述消息请求所述中继终端为所述第一远端终端分配的识别符;
将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端。
在一个可能的实现方式中,所述分配模块602还用于所述中继终端在所述消息中添加所述第一目标识别符之后,转发携带所述第一目标识别符的所述消息。
在一个可能的实现方式中,如图6所示,所述装置还可以包括:
第二收发模块606,用于在所述第一远端终端发起的中继连接建立过程中,接收所述第一远端终端报告的第二目标识别符,所述第二目标识别符为所述中继终端在接收所述中继连接建立请求前为所述第一远端终端分配的识别符;
所述分配模块602还用于向所述第一远端终端确认所述第一远端终端继续使用所述第二目标识别符,或者,重新为所述第一远端终端分配第一目标识别符。
在一个可能的实现方式中,所述第二收发模块606接收所述第一远端终端报告的第二目标识别符,包括:
接收所述第一远端终端发送的发现消息,其中,所述发现消息中携带有所述第二目标识别符;或者,
接收所述第一远端终端发送的旁链路无线资源控制信令,其中,所述旁链路无线资源控制信令中携带有所述第二目标识别符。
在一个可能的实现方式中,所述第二收发模块606还用于在所述发现消息中添加所述第一远端终端的识别符后,转发携带所述第一远端终端的识别符的所述发现消息。
在一个可能的实现方式中,所述分配模块602还用于将分配给所述第一远端终端的所述第一目标识别符通知给第二远端终端,其中,所述第二远端终端为所述第一远端终端的通信对端。
在一个可能的实现方式中,所述分配模块602还用于将分配给所述第二远端终端的第三目标识别符通知给所述第一远端终端。
本申请实施例中的远端终端的识别符的分配装置可以是电子设备,例如具有操作系统的电子设备,也可以是电子设备中的部件,例如集成电路或芯片。该电子设备可以是终端,也可以为除终端之外的其他设备。示例性的,终端可以包括但不限于上述所列举的中继终端11的类型,其他设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)等,本申请实施例不作具体限定。
本申请实施例提供的远端终端的识别符的分配装置能够实现图4的方法实施例中中继终端实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
图7示出本申请实施例提供的远端终端的识别符的选择装置的一种结构示意图,如图7所示,该装置700主要包括:发送模块701、接收模块702和选择模块703。
在本申请实施列中,发送模块701,用于向中继终端发送第一指示信息,其中,所述第一指示信息用于指示至少一个候选识别符;接收模块702,用 于终端接收所述中继终端发送的消息,其中,所述消息中携带有至少一个候选识别符和标记信息,所述标记信息用于指示所述至少一个候选识别符中的是否可用;选择模块703,用于根据所述标记信息,从所述至少一个候选识别符中选择一个可用的第一目标识别符作为所述第一远端终端的识别符。
本申请实施例中的远端终端的识别符的选择装置可以是电子设备,例如具有操作系统的电子设备,也可以是电子设备中的部件,例如集成电路或芯片。该电子设备可以是终端,也可以为除终端之外的其他设备。示例性的,终端可以包括但不限于上述所列举的远端终端12的类型,其他设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)等,本申请实施例不作具体限定。
本申请实施例提供的远端终端的识别符的分配装置能够实现图5的方法实施例中第一远端实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选的,如图8所示,本申请实施例还提供一种通信设备800,包括处理器801和存储器802,存储器802上存储有可在所述处理器801上运行的程序或指令,例如,该通信设备800为中继终端时,该程序或指令被处理器801执行时实现上述远端终端的识别符的分方法实施例的各个步骤,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种终端,包括处理器和通信接口,处理器用于实现上述远端终端的识别符的分配方法实施例的各个步骤,或者实现上述远端终端的识别符的选择方法实施例的各个步骤,通信接口用于与外部设备进行通信。该终端实施例与上述中继终端侧方法实施例对应或者与上述第一远端终端侧方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中,且能达到相同的技术效果。具体地,图9为实现本申请实施例的一种终端的硬件结构示意图。
该终端900包括但不限于:射频单元901、网络模块902、音频输出单元903、输入单元904、传感器905、显示单元906、用户输入单元907、接口单元908、存储器909、以及处理器910等部件。
本领域技术人员可以理解,终端900还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器910逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图9中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元904可以包括图形处理器(Graphics Processing Unit,GPU)9041和麦克风9042,图形处理器9041对 在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元906可包括显示面板9061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板9061。用户输入单元907包括触控面板9071以及其他输入设备9072。触控面板9071,也称为触摸屏。触控面板9071可包括触摸检测装置和触摸控制器两个部分。其他输入设备9072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元901将来自网络侧设备的下行数据接收后,给处理器910处理;另外,将上行的数据发送给网络侧设备。通常,射频单元901包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器909可用于存储软件程序或指令以及各种数据。存储器909可主要包括存储程序或指令区和存储数据区,其中,存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器909可以包括高速随机存取存储器,还可以包括非易失性存储器,其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器910可包括一个或多个处理单元;可选的,处理器910可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序或指令等,调制解调处理器主要处理无线通信,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器910中。
其中,处理器910,用于确定至少一个候选识别符;将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端。
或者,射频单元901,用于向中继终端发送第一指示信息,其中,所述第一指示信息用于指示至少一个候选识别符;接收所述中继终端发送的消息,其中,所述消息中携带有至少一个候选识别符和标记信息,所述标记信息用于指示所述至少一个候选识别符中的是否可用;处理器910,用于根据所述标记信息,从所述至少一个候选识别符中选择一个可用的第一目标识别符作为所述第一远端终端的识别符。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述远端终端的识别符的分配方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再 赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器ROM、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述远端终端的识别符的分配方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现上述远端终端的识别符的分配方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求 所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (33)

  1. 一种远端终端的识别符的分配方法,包括:
    中继终端确定至少一个候选识别符;
    所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,其中,所述第一远端终端为接入所述中继终端服务的远端终端。
  2. 根据权利要求1所述的方法,其中,所述中继终端确定至少一个候选识别符,包括以下至少之一:
    所述中继终端从网络设备获取第一目标配置参数,根据所述第一目标配置参数,得到所述至少一个候选识别符,其中,所述第一目标配置参数用于配置可供所述中继终端分配的候选识别符的第一值域,所述第一值域包括识别符全值域或识别符全值域的一个子域;
    所述中继终端根据预配置的第二目标配置参数,得到所述至少一个候选识别符;
    所述中继终端接收所述第一远端终端发送的第一指示信息,根据所述第一指示信息得到所述至少一个候选识别符,其中,所述第一指示信息用于指示至少一个识别符。
  3. 根据权利要求2所述的方法,其中,在所述中继终端从网络设备获取第一目标配置参数之后,所述方法还包括:
    在根据所述第一目标配置参数得到的候选识别符已使用完或者根据所述第一目标配置参数得到的候选识别符已使用的比例超过预定门限的情况下,所述中继终端请求所述网络设备增加可供使用的候选识别符;和/或,
    所述中继终端向所述网络设备发送分配信息,其中,所述分配信息包括以下至少之一:根据所述第一目标配置参数得到的候选识别符中已使用的数量、根据所述第一目标配置参数得到的候选识别符中未使用的数量、根据所述第一目标配置参数得到的候选识别符中已使用的比例、根据所述第一目标配置参数得到的候选识别符中未使用的比例。
  4. 根据权利要求3所述的方法,其中,在所述中继终端向所述网络设备发送分配信息之前,所述方法还包括:
    所述中继终端接收所述网络设备发送的第一请求,其中,所述第一请求用于请求所述中继终端汇报所述分配信息。
  5. 根据权利要求2所述的方法,其中,在所述中继终端根据预配置的第二目标配置参数,确定所述至少一个候选识别符之前,所述方法还包括:
    所述中继终端接收所述网络设备发送的第二指示信息,其中,所述第二 指示信息指示允许所述中继终端为远端终端分配识别符。
  6. 根据权利要求5所述的方法,其中,所述中继终端接收所述网络设备发送的第二指示信息包括:
    所述中继终端接收所述网络设备广播的系统消息,其中,所述系统消息中携带所述第二指示信息;或者,
    所述中继终端接收所述网络设备发送的终端专用信令,其中,所述终端专用信令中携带所述第二指示信息。
  7. 根据权利要求2所述的方法,其中,所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,包括:
    所述中继终端从根据所述第一目标配置参数得到的至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
  8. 根据权利要求7所述的方法,其中,所述中继终端从所述至少一个第一候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端,包括:
    所述中继终端在小区的覆盖之内,且所述中继终端从所述网络设备获取到所述第一目标配置参数的情况下,所述中继终端从所述至少一个第一候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
  9. 根据权利要求8所述的方法,其中,在所述中继终端从所述至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端之前,所述方法还包括:
    所述中继终端在小区的覆盖之内,且所述中继终端未从所述网络设备获取到所述第一目标配置参数的情况下,所述中继终端向所述网络设备发送第二请求,其中,所述第二请求用于请求所述网络设备为所述中继终端提供所述第一目标配置参数;
    所述中继终端接收所述网络设备分配的所述第一目标配置参数。
  10. 根据权利要求2所述的方法,其中,所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,包括:
    所述中继终端从根据所述第二目标配置参数得到的至少一个候选识别符中选择一个未被使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
  11. 根据权利要求10所述的方法,其中,所述中继终端从所述至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端,包括:
    在所述中继终端在小区的覆盖之外的情况下,所述中继终端从所述至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
  12. 根据权利要求2所述的方法,其中,所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,包括:
    所述中继终端根据保存的识别符占用信息,从根据所述第一指示信息得到的至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端。
  13. 根据权利要求12所述的方法,其中,从所述至少一个候选识别符中选择一个未使用的候选识别符作为所述第一目标识别符分配给所述第一远端终端,包括:
    所述中继终端根据所述识别符占用信息,标记所述至少一个候选识别符中未使用的识别符和/或标识所述至少一个候选识别符中已使用的识别符;
    所述中继终端将标识后的所述至少一个候选识别符发送给所述第一远端终端;
    所述中继终端接收所述第一远端终端发送的通知,其中,所述通知中携带有所述第一远端终端选择的所述第一目标识别符;
    所述中继终端确定将所述第一目标识别符分配给所述第一远端终端。
  14. 根据权利要求1至13任一项所述的方法,其中,在所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端之后,所述方法还包括:
    所述中继终端在识别符占用信息中记录所述第一目标识别符,其中,所述识别符占用信息用于记录所述中继终端已使用的识别符;
    所述中继终端删除所述至少一个候选识别符中的所述第一目标识别符。
  15. 根据权利要求14所述的方法,其中,在所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端之后,所述方法还包括:
    在预定情况下,所述中继终端释放所述第一目标识别符;
    所述中继终端将释放的所述第一目标识别符重新列为候选识别符。
  16. 根据权利要求15所述的方法,其中,所述预定情况包括以下之一:
    所述中继终端释放与所述第一远端终端的中继旁链路之后;
    所述中继终端接收到来自所述第一远端终端的中继旁链路释放请求之后;
    所述中继终端与所述第一远端终端发生中继旁链路连接失败之后;
    所述中继终端在通知所述第一远端终端发生目标事件之后,其中,所述目标事件包括以下之一:所述中继终端与网络设备之间的链路发生无线链路 失败、所述中继终端与网络设备之间的链路发生切换失败;
    所述中继终端确定所述第一远端终端在预设时间内未使用所述第一目标识别符;
    所述中继终端为所述第一远端终端重配置与所述第一目标识别符不同的识别符。
  17. 根据权利要求15所述的方法,其中,所述中继终端释放所述第一目标识别符,包括:
    所述中继终端向所述第一远端终端发送通知,通知所述第一远端终端释放所述第一目标识别符。
  18. 根据权利要求17所述的方法,其中,所述中继终端释放所述第一目标识别符,还包括:
    所述中继终端在识别符占用信息中删除所述第一目标识别符,其中,所述识别符占用信息用于记录所述中继终端已使用的识别符;
    所述中继终端在所述至少一个候选识别符中增加所述第一目标识别符。
  19. 根据权利要求1至13任一项所述的方法,其中,所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端,包括:
    所述中继终端接收来自所述第一远端终端的消息,其中,所述消息请求所述中继终端为所述第一远端终端分配的识别符;
    所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端。
  20. 根据权利要求19所述的方法,其中,在所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端之后,所述方法还包括:
    所述中继终端在所述消息中添加所述第一目标识别符之后,转发携带所述第一目标识别符的所述消息。
  21. 根据权利要求1至13任一项所述的方法,其中,所述方法还包括:
    在所述第一远端终端发起的中继连接建立过程中,所述中继终端接收所述第一远端终端报告的第二目标识别符,所述第二目标识别符为所述中继终端在接收所述中继连接建立请求前为所述第一远端终端分配的识别符;
    所述中继终端向所述第一远端终端确认所述第一远端终端继续使用所述第二目标识别符,或者,所述中继终端重新为所述第一远端终端分配第一目标识别符。
  22. 根据权利要求21所述的方法,其中,所述中继终端接收所述第一远端终端报告的第二目标识别符,包括:
    所述中继终端接收所述第一远端终端发送的发现消息,其中,所述发现 消息中携带有所述第二目标识别符;或者,
    所述中继终端接收所述第一远端终端发送的旁链路无线资源控制信令,其中,所述旁链路无线资源控制信令中携带有所述第二目标识别符。
  23. 根据权利要求22所述的方法,其中,所述中继终端接收所述第一远端终端发送的发现消息之后,所述方法还包括:
    所述中继终端在所述发现消息中添加所述第一远端终端的识别符后,转发携带所述第一远端终端的识别符的所述发现消息。
  24. 根据权利要求1至13任一项所述的方法,其中,在所述中继终端将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端之后,所述方法还包括:
    所述中继终端将分配给所述第一远端终端的所述第一目标识别符通知给第二远端终端,其中,所述第二远端终端为所述第一远端终端的通信对端。
  25. 根据权利要求24所述的方法,其中,所述方法还包括:
    所述中继终端将分配给所述第二远端终端的第三目标识别符通知给所述第一远端终端。
  26. 一种远端终端的识别符的选择方法,包括:
    第一远端终端向中继终端发送第一指示信息,其中,所述第一指示信息用于指示至少一个候选识别符;
    所述第一远端终端接收所述中继终端发送的消息,其中,所述消息中携带有至少一个候选识别符和标记信息,所述标记信息用于指示所述至少一个候选识别符中的是否可用;
    所述第一远端终端根据所述标记信息,从所述至少一个候选识别符中选择一个可用的第一目标识别符作为所述第一远端终端的识别符。
  27. 根据权利要求26所述的方法,其中,所述第一远端终端向中继终端发送第一指示信息,包括:
    所述第一远端终端向所述中继终端发送发现消息,其中,所述发现消息中携带所述第一指示信息。
  28. 根据权利要求27所述的方法,其中,所述中继终端发送的所述消息包括:所述发现消息对应的响应发现消息。
  29. 根据权利要求26至28任一项所述的方法,其中,在从所述至少一个候选识别符中选择一个可用的第一目标识别符作为所述第一远端终端的识别符之后,所述方法还包括:
    所述第一远端终端向所述中继终端发送的通知,其中,所述通知中携带有所述第一远端终端选择的所述第一目标识别符。
  30. 一种远端终端的识别符的分配装置,包括:
    确定模块,用于确定至少一个候选识别符;
    分配模块,用于将所述至少一个候选识别符中的一个第一目标识别符分配给第一远端终端。
  31. 一种远端终端的识别符的选择装置,包括:
    发送模块,用于向中继终端发送第一指示信息,其中,所述第一指示信息用于指示至少一个候选识别符;
    接收模块,用于接收所述中继终端发送的消息,其中,所述消息中携带有至少一个候选识别符和标记信息,所述标记信息用于指示所述至少一个候选识别符中的是否可用;
    选择模块,用于根据所述标记信息,从所述至少一个候选识别符中选择一个可用的第一目标识别符作为所述第一远端终端的识别符。
  32. 一种终端,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至25任一项所述远端终端的识别符的分配方法的步骤,或者实现如权利要求26至29任一项所述远端终端的识别符的选择方法的步骤。
  33. 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1至25任一项所述远端终端的识别符的分配方法的步骤,或者实现如权利要求26至29任一项所述远端终端的识别符的选择方法的步骤。
PCT/CN2023/083613 2022-03-25 2023-03-24 远端终端的识别符的分配方法、装置及终端 WO2023179754A1 (zh)

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