WO2022213393A1 - 寻呼方法、设备及存储介质 - Google Patents

寻呼方法、设备及存储介质 Download PDF

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Publication number
WO2022213393A1
WO2022213393A1 PCT/CN2021/086279 CN2021086279W WO2022213393A1 WO 2022213393 A1 WO2022213393 A1 WO 2022213393A1 CN 2021086279 W CN2021086279 W CN 2021086279W WO 2022213393 A1 WO2022213393 A1 WO 2022213393A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
message
identification information
paging message
paging
Prior art date
Application number
PCT/CN2021/086279
Other languages
English (en)
French (fr)
Inventor
卢飞
郭雅莉
杨皓睿
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP21935617.7A priority Critical patent/EP4322572A1/en
Priority to CN202180051307.2A priority patent/CN115918114A/zh
Priority to PCT/CN2021/086279 priority patent/WO2022213393A1/zh
Publication of WO2022213393A1 publication Critical patent/WO2022213393A1/zh
Priority to US18/088,247 priority patent/US20230209502A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the embodiments of the present application relate to communication technologies, and in particular, to a paging method, device, and storage medium.
  • user equipment In the field of communication, user equipment (UE) can communicate through a cellular communication interface, namely, a user equipment-Universal Mobile Telecommunications Terrestrial Access Network (UE-UTRAN, Uu) interface, and can also communicate through a direct-connected communication interface, namely The near field-based service communication (interface) 5 (proximity-based service communication (interface) 5, PC5) interface directly communicates between user equipment, and the PC5 interface can be used for information transmission on the data plane and the control plane.
  • RAN radio access network
  • indirect communication can also be used, that is, relay communication can be realized through the communication architecture of the PC5 interface and the Uu interface .
  • the data of the user equipment can be transmitted to the relay user equipment (also referred to as relay UE) through the PC5 interface, and the relay UE then communicates with the relay UE through the relay UE.
  • the Uu interface between the network devices sends the data of the remote UE to the network.
  • the paging manner for the network to page the remote UE when the remote UE is in an idle state still needs to be improved.
  • Embodiments of the present application provide a paging method, device, and storage medium, so as to improve resource utilization.
  • the embodiments of the present application can provide a paging method, which is applied to an access network device, and the method includes:
  • a paging message is sent to the second terminal device, the second terminal device provides a relay service for the first terminal device, and the paging message is used for paging the first terminal device.
  • the embodiments of the present application may further provide a paging method, which is applied to an AMF node, and the method includes:
  • Send a first message to the access network device where the first message includes first identification information, the first identification information is used to identify the first terminal device, the second identification information is used to identify the second terminal device, the second terminal
  • the device provides a relay service for the first terminal device.
  • the embodiments of the present application may provide a paging method, which is applied to an access network device, and the method includes:
  • the third message includes first identification information, where the first identification information is used to identify the first terminal device, and the second terminal device provides a relay service for the first terminal device;
  • a paging message is sent to the second terminal device, the second terminal device provides a relay service for the first terminal device, and the paging message is used for paging the first terminal device.
  • the embodiments of the present application may provide a paging method, which is applied to a second terminal device, and the method includes:
  • the first terminal device is in a radio resource control RRC connection state.
  • the embodiments of the present application may provide an access network device, including:
  • a transceiver unit configured to receive a first message from a core network node, where the first message includes first identification information, where the first identification information is used to identify the first terminal device;
  • a processing unit configured to determine to send a paging message to a second terminal device according to the first identification information, the second terminal device provides relay services for the first terminal device, and the paging message is used for paging the first terminal device Terminal Equipment;
  • the transceiver unit is also used for sending a paging message to the second terminal device.
  • the embodiments of the present application may further provide an AMF node, including:
  • a processing unit configured to determine a first message, where the first message includes first identification information, the first identification information is used to identify a first terminal device, the second identification information is used to identify a second terminal device, the second terminal The device provides a relay service for the first terminal device;
  • the transceiver unit is configured to send the first message to the access network device.
  • an embodiment of the present application may provide a terminal device, including:
  • a transceiver unit configured to receive a third message from a second terminal device, where the third message includes first identification information, where the first identification information is used to identify the first terminal device, and the second terminal device is the first terminal device provide relay services;
  • a processing unit configured to determine to send a paging message to a second terminal device according to the first identification information, the second terminal device provides relay services for the first terminal device, and the paging message is used for paging the first terminal device Terminal Equipment;
  • the transceiver unit is also used for sending a paging message to the second terminal device.
  • an embodiment of the present application may provide a terminal device, including:
  • a processing unit configured to determine a third message, where the third message includes first identification information, and the first identification information is used to identify the first terminal device;
  • transceiver unit configured to send a third message to the access network device
  • the transceiver unit is further configured to receive a paging message from the access network device, and send the paging message to the first terminal device, where the paging message is used for paging the first terminal device;
  • the first terminal device is in a radio resource control RRC connection state.
  • the embodiments of the present application may further provide an access network device, including:
  • processors memories, interfaces for communicating with network devices
  • the memory stores computer-executable instructions
  • the processor executes the computer-executable instructions stored in the memory, so that the processor executes the paging method as provided in any one of the first aspect or the third aspect.
  • the embodiments of the present application may further provide an AMF node, including:
  • Processor memory, interface for communication with terminal equipment
  • the memory stores computer-executable instructions
  • the processor executes the computer-executable instructions stored in the memory, so that the processor executes the paging method as provided in any one of the second aspects.
  • the embodiments of the present application may further provide a terminal device, including:
  • Processor memory, interface for communication with terminal equipment
  • the memory stores computer-executable instructions
  • the processor executes the computer-executable instructions stored in the memory, so that the processor executes the paging method provided in any one of the fourth aspects.
  • an embodiment of the present application provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement the first aspect To the paging method according to any one of the fourth aspects.
  • an embodiment of the present application provides a program, which, when the program is executed by a processor, is used to execute the paging method according to any one of the first to fourth aspects above.
  • the above-mentioned processor may be a chip.
  • an embodiment of the present application provides a computer program product, including program instructions, where the program instructions are used to implement the paging method according to any one of the first to fourth aspects.
  • an embodiment of the present application provides a chip, including: a processing module and a communication interface, where the processing module can execute the paging method described in any one of the first aspect to the fourth aspect.
  • the chip also includes a storage module (eg, memory), the storage module is used for storing instructions, the processing module is used for executing the instructions stored in the storage module, and the execution of the instructions stored in the storage module causes the processing module to perform the first aspect.
  • a storage module eg, memory
  • the storage module is used for storing instructions
  • the processing module is used for executing the instructions stored in the storage module
  • the execution of the instructions stored in the storage module causes the processing module to perform the first aspect.
  • Fig. 1 is a communication system architecture diagram applicable to the present application
  • FIG. 2 is a schematic architecture diagram of a relay communication scenario applicable to the application
  • FIG. 3 is a schematic diagram of a user plane protocol stack of a layer 2 relay provided by the present application.
  • 3A is a schematic diagram of a control plane protocol stack of a layer 2 relay provided by the present application.
  • FIG. 4 is a schematic flowchart of a paging method provided in Embodiment 1 of the present application.
  • FIG. 5 is a schematic flowchart of a paging method provided in Embodiment 2 of the present application.
  • FIG. 6 is a schematic flowchart of a paging method provided in Embodiment 3 of the present application.
  • FIG. 7 is a schematic block diagram of a communication device provided by the present application.
  • FIG. 8 is a schematic structural diagram of a terminal device provided by the present application.
  • FIG. 9 is a schematic structural diagram of an access network device provided by the present application.
  • FIG. 10 is a schematic structural diagram of a communication device provided by this application.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunications system
  • WiMAX worldwide interoperability for microwave access
  • 5G fifth generation
  • 5G new wireless
  • NR new radio
  • FIG. 1 is a schematic structural diagram of a communication system applicable to the present application.
  • the 5G core network (5G core, 5GC, or new generation core, NGC) includes the access and mobility management function (AMF) nodes, session management functions shown in Figure 1 (session management function, SMF) node, user plane function (user plane function, UPF) node, authentication server function (authentication server function, AUSF) node, policy control function (policy control function, PCF) node, application function (application function) function, AF) node, unified data management function (unified data management, UDM) node, network slice selection function (network slice selection function, NSSF) node and other functional units.
  • AMF access and mobility management function
  • the UE can connect the access layer with the access network (AN) through the Uu port, exchange access layer messages and wireless data transmission, and communicate with the AMF node in the core network through the N1 port.
  • Non-access stratum (NAS) connection exchange NAS messages.
  • AMF nodes are mainly used for mobility management and access management.
  • the SMF node in the core network is a session management function, which is mainly used for session management, UE's Internet Protocol (IP) address allocation and management, selection and management of user plane functions, policy control, or termination of charging function interfaces point and downlink data notification, configure routing information for user plane functions, etc.
  • IP Internet Protocol
  • the AMF node is also responsible for forwarding messages related to session management between the UE and the SMF.
  • the PCF node in the core network is used to guide the unified policy framework of network behavior. It provides policy rule information and other policy management functions for control plane functional network elements (such as AMF, SMF network elements, etc.), and is responsible for formulating the mobility of UEs. Management, session management, billing and other related policies.
  • the user plane function UPF node in the core network is mainly used for packet routing and forwarding, or quality of service (QoS) processing of user plane data. Data transmission is carried out with the external data network through the N6 interface, and data transmission with the AN through the N3 interface. After the UE accesses the 5G network through the Uu port, it establishes a protocol data unit (PDU) session under the control of the SMF for data transmission.
  • PDU protocol data unit
  • a UE with Proximity-based Service (ProSe) capability can communicate directly with another UE with Prose capability through a PC5 interface.
  • ProSe Proximity-based Service
  • a UE When a UE can connect to the external data network through the 5G network and has the Prose capability, the UE can act as a relay UE (relay UE), and another remote UE with ProSe capability (remote UE) can communicate with the relay through the PC5 interface.
  • the UE establishes a direct connection and interacts with the external network by relaying the PDU session established between the UE and the 5G network, as shown in Figure 2.
  • Fig. 3 is a schematic diagram of the user plane protocol stack of the layer 2 relay provided by this application.
  • the relay UE is only used for the remote UE and the access network serving the remote UE (gNB in Fig. 3)
  • the air interface data between remote UEs is transferred, and a PDU session is established between the remote UE and the UPF node serving the remote UE, and the data of the remote UE is forwarded to the external network through the remote UE's own PDU session.
  • the remote UE may include a PC5 radio link control (RLC) layer, a PC5 medium access control (MAC) layer, a PC5 physical layer (physical, PHY), and an application (application, APP) layer, PDU layer, Uu service data adaptation protocol (service data adaptation protocol, SDAP) layer, Uu packet data convergence protocol (packet data convergence protocol, PDCP) layer.
  • the relay UE may include a PC5-RLC layer, a PC5-MAC layer, a PC5-PHY layer and a Uu-RLC layer, a Uu-MAC layer, a Uu-PHY layer, and an adaptation (ADAPT) layer.
  • the gNB may include Uu-RLC layer, Uu-MAC layer, Uu-PHY layer and adaptation layer, as well as Uu-PDCP layer, Uu-SDAP layer.
  • the UPF node of the remote UE may include PDU layer, GTP-U layer, UDP layer, IP layer, L2, L1.
  • FIG. 3A is a schematic diagram of the control plane protocol stack of the layer 2 relay provided by the application.
  • the remote UE and the NAS layer of the 5GC can exchange NAS signaling through the transparent transmission of the relay UE and the gNB.
  • the signaling interaction of the Uu-RRC layer and the Uu-PDCP layer can be performed between the Remote UE and the gNB through the transparent transmission of the relay UE.
  • Signaling interaction can be performed between the Remote UE and the Relay UE through the RLC channel.
  • Signaling interaction can be performed between the Relay UE and the gNB through the signaling radio bearer (signaling radio bearer, SRB) of the Uu interface.
  • the signaling interaction between the N2 stacks can be performed between the gNB and the 5GC through the N2 interface.
  • the present application is not limited to this.
  • the terminal device in this embodiment of the present application may be referred to as a terminal, user equipment (UE), and the terminal device may be an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, or a mobile device , user terminal, terminal equipment, wireless communication device, user agent or user equipment.
  • UE user equipment
  • the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks or terminals in the future evolution of the public land mobile network (PLMN) equipment, etc., which are not limited in this embodiment of the present application.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • PLMN public land mobile network
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the terminal device may also be a terminal device in a car networking system or an internet of things (internet of things, IoT) system.
  • IoT internet of things
  • the network device in this embodiment of the present application may be a device used to communicate with a terminal device, and the network device may be a base station (base transceiver station, BTS) in a GSM or CDMA system, or a base station (nodeB, BTS) in a WCDMA system NB), it can also be an evolved base station (evolutional nodeB, eNB or eNodeB) in the LTE system, it can also be a wireless controller in the cloud radio access network (cloud radio access network, CRAN) scenario, or the network device can It is a relay station, an access point, a vehicle-mounted device, and a network device in a 5G network or a network device in a future evolved PLMN network, etc., which are not limited in the embodiments of the present application.
  • BTS base transceiver station
  • nodeB, BTS base station
  • eNodeB evolved base station
  • CRAN cloud radio access network
  • the network device can It is a relay station, an access
  • the access network device does not save the context of the remote UE in idle state.
  • the access network device cannot determine the relay UE serving the remote UE. Therefore, the access network device needs to send a paging message to each relay provided within the coverage area. serving UE. It brings a large resource overhead and a low resource utilization rate.
  • the embodiment of the present application proposes that the access network device obtains the identification information of the remote UE, and when the remote UE is in an idle state, the access network device does not release the identification information of the remote UE.
  • the identification information of the UE determines the relay UE that provides the relay service for the remote UE.
  • the access network device sends a paging message for paging the remote UE to the relay UE corresponding to the remote UE, which can avoid that the access network device cannot determine the paged UE.
  • the corresponding relay UE sends the paging message to each UE that provides relay service within the coverage. Improved resource utilization.
  • FIG. 4 is a schematic flowchart of the paging method provided in Embodiment 1 of the present application.
  • the second terminal device provides a relay service for the first terminal device. That is to say, the first terminal device is a remote terminal device, the second terminal device is a relay terminal device,
  • the access network device receives a message A, where the message A includes first identification information of the first terminal device.
  • the access network device When the second terminal device (ie, the relay terminal device) is in a connected state (CONNECTED state), the access network device needs to keep storing the first identification information of the remote terminal device. In other words, when the relay terminal device is in a connected state (CONNECTED state), the access network device does not release the first identification information of the first terminal device (remote terminal device).
  • the second terminal device sends a third message (ie, an example of message A) to the access network device, where the third message includes the first identification information.
  • a third message ie, an example of message A
  • the access network device receives the third message from the second terminal device.
  • the access network device may receive the third message in the connected state or idle state of the first terminal device (ie, the remote terminal device), which is not limited in this application.
  • the third message is a remote device reporting message.
  • the access network device may determine, according to the received third message, the first identification information of the first terminal device for which the second terminal device provides the relay service.
  • the access network device After receiving the third message, the access network device sends a fourth message to the second terminal device, where the fourth message is an acknowledgement response message of the third message, and is used to notify the second terminal device that the third message is successfully received.
  • the fourth message may be a confirmation message reported by the remote terminal device.
  • the present application is not limited to this.
  • the core network node sends a first message (ie, another example of message A) to the access network node, where the first message includes the first identification information.
  • the gNB After receiving the first message, the gNB carries the first identification information of the first terminal device (that is, the remote UE) in the ADAPT layer (adaption layer) on the Uu interface, and The information of other layers is the same as the information of the second terminal device (ie relay UE), so that the gNB can relay and associate the second terminal device with the first terminal device, that is, the second terminal device provides relay for the first terminal device.
  • the gNB carries the first identification information of the first terminal device (that is, the remote UE) in the ADAPT layer (adaption layer) on the Uu interface, and The information of other layers is the same as the information of the second terminal device (ie relay UE), so that the gNB can relay and associate the second terminal device with the first terminal device, that is, the second terminal device provides relay for the first terminal device.
  • the access network device receives the first message from the core network node.
  • the access network device may receive the first message in the connected state or idle state of the first terminal device (ie, the remote terminal device), which is not limited in this application.
  • the core network node is an AMF node.
  • the access network node may determine, according to the received first message, the first identification information of the first terminal device for which the second terminal device provides the relay service.
  • the access network device After receiving the first message, the access network device sends a second message to the core network node, where the second message is an acknowledgement response message for the first message, and is used to notify the core network node that the first message is successfully received .
  • the first identification information is a globally unique user equipment temporary identification (globally unique temporary UE identity, GUTI) or a temporary mobile subscriber identity (serving temporary mobile subscriber identity, S-TMSI).
  • GUTI globally unique temporary UE identity
  • S-TMSI temporary mobile subscriber identity
  • the access network device sends a paging message to the second terminal device, where the paging message is used to page the first terminal device.
  • the second terminal device When the second terminal device enters the idle state (IDLE state), if the network side has downlink data to send, the network side needs to page the second terminal device, and the AMF node sends a paging message to the access network node. Carrying the third identification information of the second terminal device. The paging message is used for paging the first terminal device.
  • the third identification information is GUTI or S-TMSI.
  • the S-TMSI of a terminal device is the truncated information of the GUTI of the terminal device, that is, the S-TMSI is a part of the GUTI, and the GUTI includes the S-TMSI. That is, the third identification information is the first identification information, or the first identification information is truncated information of the third identification information, or the third identification information is truncated information of the first identification information.
  • the access network device After receiving the paging message from the AMF node, the access network device determines that the paging message needs to be forwarded. The access network device may determine, according to the third identification information, that the target device receiving the paging message is the first terminal device, and determine that the relay terminal device of the first terminal device is the second terminal device, and the access network device will call the paging message. The message is forwarded to the second terminal device, which is then forwarded to the first terminal device by the second terminal device.
  • the access network device when the network needs to page the remote UE, the access network device sends a paging message for paging the remote UE to the relay UE corresponding to the remote UE, which can avoid the inability of the access network device to determine The case where the relay UE corresponding to the paging UE is sent, and the paging message is sent to each UE within the coverage area that provides the relay service. Improved resource utilization.
  • FIG. 5 is a schematic flowchart of the paging method provided in Embodiment 2 of the present application.
  • S501, UE1 and UE2 perform a relay UE discovery and selection process.
  • UE1 selects UE2 as the relay terminal device in this process. And in S502, the PC5 combo is established with the UE2, so as to realize the direct connection communication between the UE1 and the UE2.
  • S503 UE1 initiates an access stratum (access stratum, AS) connection establishment process.
  • access stratum access stratum, AS
  • UE1 sends an AS message to the RAN device through UE2 to establish an AS connection.
  • UE1 sends a NAS message to the AMF node to request the establishment of a NAS connection, the NAS message is encapsulated in an RRC message, and the RRC message is encapsulated in a PC5 message and sent to UE2, which is sent by UE2 to the RAN device, and then forwarded to the AMF node by the RAN device.
  • the AMF node sends a registration accept (registration accept) message or a UE configuration update command (UE configuration update command) message to the UE1.
  • registration accept registration accept
  • UE configuration update command UE configuration update command
  • the AMF node can send a registration accept message to UE1, and the 5G-GUTI is carried in the registration accept message to notify UE1 of the 5G-GUTI;
  • the GUTI may be updated regularly to prevent the temporary identity from being tracked, etc., but the present application is not limited to this), and the AMF updates the 5G-GUTI of the UE1 through the UE configuration update command message.
  • UE1 receives a registration accept message or a UE configuration update command message from the AMF node.
  • the GUTI of UE1 is included in the registration accept message or the UE configuration update command message.
  • this embodiment takes the first identification information as GUTI as an example for description, but the present application is not limited to this, and the first identification information may also be S-TMSI or other identification information for identifying the UE1.
  • UE1 sends a registration complete (registration complete) message or a UE configuration update acknowledgment (UE configuration update ACK) message to the AMF node.
  • registration complete registration complete
  • UE configuration update ACK UE configuration update acknowledgment
  • the AMF node sends a registration accept message to the UE1 in S505
  • the UE1 sends a registration complete message to the AMF node in S506 to notify the AMF node that the registration is completed.
  • the AMF node receives the registration acceptance message from UE1, and determines that UE1 completes the registration.
  • the AMF node sends the UE configuration update command message to the UE1 in S505
  • the UE1 sends the UE configuration update confirmation message to the AMF node in S506.
  • the AMF node receives the UE configuration update confirmation message from UE1 to confirm the completion of the UE configuration update.
  • UE1 sends a PC5 message to UE2, where the PC5 message includes the GUTI of UE1.
  • UE2 receives the PC5 message from UE1, and UE2 obtains the GUTI of UE1 through the PC5 message, so that UE2 receives the paging message of UE1 according to the GUTI of UE1.
  • UE2 sends a PC5 response message to UE1.
  • UE1 receives the PC5 response message from UE2.
  • UE2 sends a remote UE report message (ie, an example of the third message) to the RAN device, where the remote UE report message includes the GUTI of UE1.
  • a remote UE report message ie, an example of the third message
  • the RAN device receives the remote UE reporting message from UE2, and determines the GUTI of UE1 for which UE2 provides the relay service according to the remote UE reporting message.
  • the RAN device needs to store the GUTI. That is to say, when UE2 is in the connected state, the RAN device does not release the GUTI of the remote terminal terminal device that UE2 provides the relay service.
  • the UE corresponding to the GUTI is a remote terminal device that provides a relay service for UE2, so as to forward the paging message.
  • the RAN device sends a remote UE reporting confirmation message to UE2.
  • UE2 receives the UE reporting acknowledgment message from the RAN device, and has determined that the remote UE reporting acknowledgment message is correctly received.
  • the AMF node sends a paging message to the RAN device.
  • the network side needs to page the UE, and the AMF node sends a paging message to the RAN device for paging UE1, the paging message includes S -TMSI. Accordingly, the RAN device receives the paging message from the AMF node.
  • the RAN device sends the paging message to UE2.
  • the RAN device can determine that the paging message is used for paging UE1 according to the S-TMSI in the paging message. Specifically, since the S-TMSI is the truncated information of the GUTI, the RAN device can determine that the S-TMSI is the paging message of the UE1 according to the GUTI of the UE1. And, the RAN device may determine that the UE1 identified by the GUTI is the UE that provides the relay service for the UE2.
  • the RAN device broadcasts the paging message on the paging channel, and accordingly, when UE2 is in an idle state, detects the paging messages of UE2 and UE1 on the paging channel.
  • UE2 sends the paging message to UE1.
  • UE2 After UE2 receives the paging message from the RAN device in S512, UE2 determines that the paging message is for paging UE1, and then UE2 forwards the paging message to UE1.
  • FIG. 6 is a schematic flowchart of the paging method provided in Embodiment 3 of the present application.
  • S601 to S608 in the third embodiment shown in FIG. 6 correspond to and are the same as S501 to S508 in the embodiment shown in FIG. 5 . Reference can be made to the above description of FIG. 5 . For brevity, here No longer.
  • the AMF node sends an N2 message to the RAN device, where the N2 message includes the GUTI of the UE1.
  • the RAN device receives the N2 message from the AMF node
  • the gNB after receiving the N2 message, the gNB carries the GUTI of the UE1 (that is, the remote UE) in the ADAPT layer (adaption layer) on the Uu interface, and The information of other layers is the same as that of UE2 (ie, relay UE), so that the gNB can perform relay association between UE2 and UE1, that is, the UE2 provides relay service for UE1.
  • the N2 message further includes the identification information of the UE2.
  • the N2 message is specifically used to indicate the GUTI of UE1 for which UE2 provides the relay service.
  • the RAN device can determine the GUTI of UE1 for which UE2 provides the relay service according to the N2 message.
  • the third embodiment is described by taking the first identification information as GUTI as an example, but the present application is not limited to this, and the first identification information may also be S-TMSI, or other identification information for identifying UE1.
  • the RAN device when the UE2 is in a connected state, the RAN device needs to store the GUTI of the UE1. That is to say, when UE2 is in the connected state, the RAN device does not release the GUTI of the remote terminal terminal device that UE2 provides the relay service. So that the RAN device can determine, according to the GUTI, the remote terminal device that the UE corresponding to the GUTI provides a relay service for UE2, so as to forward the paging message.
  • the RAN device sends an N2 acknowledgment response message to the AMF node.
  • the AMF node receives the N2 acknowledgment response message from the RAN device to confirm that the RAN device successfully received the N2 message.
  • the sequence numbers of the steps are only used to identify the corresponding steps, and the order in which each device and node executes the steps is determined by the logical relationship between the steps.
  • the execution order is not limited.
  • S609 may be executed after S606, and the present application does not limit the sequence between S609, S607, and S608.
  • the present application is not limited to this.
  • S611 to S613 shown in FIG. 6 correspond to and are the same as S511 to S513 shown in FIG. 5 in sequence.
  • the specific implementation can refer to the above description of FIG. 5 , which is not repeated here for brevity.
  • the access network device when the network needs to page the remote UE, the access network device sends a paging message for paging the remote UE to the relay UE corresponding to the remote UE, which can avoid the inability of the access network device to determine The case where the relay UE corresponding to the paging UE is sent, and the paging message is sent to each UE within the coverage area that provides the relay service. Improved resource utilization.
  • FIG. 7 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication apparatus 700 may include a processing unit 710 and a transceiver unit 720 .
  • the communication apparatus 700 may correspond to the terminal device in the above method embodiment, that is, the UE, or a chip configured (or used) in the terminal device.
  • the communication apparatus 700 may correspond to the first terminal device or the second terminal device in the methods 400 , 500 , and 600 according to the embodiments of the present application, and the communication apparatus 700 may include a method for executing FIG. 4 , FIG. A unit of the method performed by the first terminal device or the second terminal device in the methods 400, 500, and 600 in 6.
  • each unit in the communication device 700 and the above-mentioned other operations and/or functions are to implement the corresponding processes of the methods 400 , 500 and 600 in FIG. 4 , FIG. 5 , and FIG. 6 , respectively.
  • the transceiver unit 720 in the communication apparatus 700 may be an input/output interface or circuit of the chip, and the processing in the communication apparatus 700 Unit 710 may be a processor in a chip.
  • processing unit 710 of the communication device 700 may be used to process instructions or data to implement corresponding operations.
  • the communication device 700 may further include a storage unit 730, the storage unit 730 may be used to store instructions or data, and the processing unit 710 may execute the instructions or data stored in the storage unit, so as to enable the communication device to implement corresponding operations , the transceiver unit 720 in the communication apparatus 700 in the communication apparatus 700 may correspond to the transceiver 810 in the terminal equipment 800 shown in FIG. 8 , and the storage unit 730 may correspond to the terminal equipment 800 shown in FIG. 8 . in the memory.
  • the transceiver unit 720 in the communication apparatus 700 may be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it may correspond to the terminal shown in FIG. 8 .
  • the transceiver 810 in the device 800, the processing unit 710 in the communication device 700 may be implemented by at least one processor, for example, may correspond to the processor 820 in the terminal device 800 shown in FIG.
  • the processing unit 710 may be implemented by at least one logic circuit.
  • the communication apparatus 700 may correspond to the access network equipment in the above method embodiments, for example, or a chip configured (or used) in the access network equipment.
  • the communication apparatus 700 may correspond to the access network equipment in the methods 400, 500, and 600 according to the embodiments of the present application, and the communication apparatus 700 may include a method for executing the method 400 in FIG. 4, FIG. 5, and FIG. 6.
  • 500, and 600 are the units of the method performed by the access network device.
  • each unit in the communication device 700 and the above-mentioned other operations and/or functions are to implement the corresponding processes of the methods 400 , 500 and 600 in FIG. 4 , FIG. 5 , and FIG. 6 , respectively.
  • the transceiver unit 720 in the communication device 700 is an input/output interface or circuit in the chip, and in the communication device 700
  • the processing unit 710 may be a processor in a chip.
  • processing unit 710 of the communication device 700 may be used to process instructions or data to implement corresponding operations.
  • the communication apparatus 700 may further include a storage unit 730, which may be used to store instructions or data, and the processing unit may execute the instructions or data stored in the storage unit 730 to enable the communication apparatus to implement corresponding operations.
  • the storage unit 730 in the communication apparatus 700 may correspond to the memory in the access network device 900 shown in FIG. 9 .
  • the transceiver unit 720 in the communication apparatus 700 may be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it may correspond to the one shown in FIG. 9 .
  • the transceiver 910 in the access network device 900, the processing unit 710 in the communication apparatus 700 may be implemented by at least one processor, for example, may correspond to the processor 920 in the access network device 900 shown in FIG. 9,
  • the processing unit 710 in the communication device 700 may be implemented by at least one logic circuit.
  • the communication device 700 may correspond to the AMF node in the above method embodiment, for example, or a chip configured (or used in) the AMF node.
  • the communication apparatus 700 may correspond to an AMF node in the methods 400, 500, and 600 according to the embodiments of the present application, and the communication apparatus 700 may include a method for executing the methods 400, 500 in FIG. 4, FIG. 5, and FIG. 6. .
  • the unit of the method performed by the AMF node in 600 .
  • each unit in the communication device 700 and the above-mentioned other operations and/or functions are to implement the corresponding processes of the methods 400 , 500 and 600 in FIG. 4 , FIG. 5 , and FIG. 6 , respectively.
  • the transceiver unit 720 in the communication device 700 is an input/output interface or circuit in the chip, and the processing in the communication device 700 Unit 710 may be a processor in a chip.
  • processing unit 710 of the communication device 700 may be used to process instructions or data to implement corresponding operations.
  • the communication apparatus 700 may further include a storage unit 730, which may be used to store instructions or data, and the processing unit may execute the instructions or data stored in the storage unit 730 to enable the communication apparatus to implement corresponding operations.
  • the storage unit 730 in the communication apparatus 700 may correspond to the memory 1030 in the communication device 1000 shown in FIG. 10 .
  • the transceiver unit 720 in the communication device 700 may be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it may correspond to the communication shown in FIG. 10 .
  • the transceiver 1010 in the device 1000, the processing unit 710 in the communication device 700 may be implemented by at least one processor, for example, may correspond to the processor 1020 in the communication device 1000 shown in FIG.
  • the processing unit 710 may be implemented by at least one logic circuit.
  • FIG. 8 is a schematic structural diagram of a terminal device 800 provided by an embodiment of the present application.
  • the terminal device 800 can be applied to the system as shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiments.
  • the terminal device 800 includes a processor 820 and a transceiver 810 .
  • the terminal device 800 further includes a memory.
  • the processor 820, the transceiver 810 and the memory can communicate with each other through an internal connection path to transmit control and/or data signals, the memory is used to store computer programs, and the processor 820 is used to execute the computer in the memory. program to control the transceiver 810 to send and receive signals.
  • the above-mentioned processor 820 and the memory can be combined into a processing device, and the processor 820 is configured to execute the program codes stored in the memory to realize the above-mentioned functions.
  • the memory can also be integrated in the processor 820 or be independent of the processor 820 .
  • the processor 820 may correspond to the processing unit in FIG. 7 .
  • the transceiver 810 described above may correspond to the transceiver unit 720 in FIG. 7 .
  • the transceiver 810 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Among them, the receiver is used for receiving signals, and the transmitter is used for transmitting signals.
  • the terminal device 800 shown in FIG. 8 can implement various processes involving the first terminal device or the second terminal device in the embodiments of the methods 400 , 500 and 600 in FIGS. 4 , 5 and 6 .
  • the operations and/or functions of each module in the terminal device 800 are respectively to implement the corresponding processes in the foregoing method embodiments.
  • the above-mentioned processor 820 may be used to perform the actions described in the foregoing method embodiments that are implemented internally by the terminal device, and the transceiver 810 may be used to perform the operations described in the foregoing method embodiments that the terminal device sends to or receives from the network device. action.
  • the transceiver 810 may be used to perform the operations described in the foregoing method embodiments that the terminal device sends to or receives from the network device. action.
  • the above-mentioned terminal device 800 may further include a power supply for providing power to various devices or circuits in the terminal device.
  • the terminal device 800 may further include one or more of an input unit, a display unit, an audio circuit, a camera, a sensor, etc., and the audio circuit may also include a speaker, a microphone, etc. Wait.
  • FIG. 9 is a schematic structural diagram of an access network device provided by an embodiment of the present application.
  • the access network device 900 may be applied to the system shown in FIG. 1 to perform the functions of the access network device in the foregoing method embodiments.
  • the terminal device 900 includes a processor 920 and a transceiver 910 .
  • the access network device 900 further includes a memory.
  • the processor 920, the transceiver 910 and the memory can communicate with each other through an internal connection path to transmit control and/or data signals, the memory is used to store computer programs, and the processor 920 is used to execute the computer in the memory. program to control the transceiver 910 to send and receive signals.
  • the access network device 900 shown in FIG. 9 can implement various processes involving the access network device in the methods 400 , 500 and 600 in FIGS. 4 , 5 and 6 .
  • the operations and/or functions of each module in the access network device 900 are respectively to implement the corresponding processes in the foregoing method embodiments.
  • the access network device 900 shown in FIG. 9 is only a possible architecture of the access network device, and should not constitute any limitation to the present application.
  • the method provided in this application may be applicable to access network devices of other architectures.
  • access network equipment including CU, DU, and AAU, etc. This application does not limit the specific architecture of the access network device.
  • FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device shown in FIG. 10 has the function of an AMF node, and the communication device 1000 can be applied to the system shown in FIG. The function of the AMF node.
  • the communication device 1000 includes a processor 1020 and a transceiver 1010.
  • the communication device 1000 further includes a memory.
  • the processor 1020, the transceiver 1010 and the memory can communicate with each other through an internal connection path to transmit control and/or data signals, the memory is used to store computer programs, and the processor 1020 is used to execute the computer in the memory. program to control the transceiver 1010 to send and receive signals.
  • the communication device 1000 shown in FIG. 10 can implement various processes involving AMF nodes in the methods 400 , 500 , and 600 in FIGS. 4 , 5 , and 6 .
  • the operations and/or functions of each module in the communication device 1000 are respectively to implement the corresponding processes in the foregoing method embodiments.
  • An embodiment of the present application further provides a processing apparatus, including a processor and an interface, where the processor is configured to execute the method in any of the foregoing method embodiments.
  • the above-mentioned processing device may be one or more chips.
  • the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), or a It is a central processing unit (CPU), a network processor (NP), a digital signal processing circuit (DSP), or a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • MCU microcontroller unit
  • MCU programmable logic device
  • PLD programmable logic device
  • each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, detailed description is omitted here.
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the aforementioned processors may be general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components .
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • the methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code is executed by one or more processors, makes the device including the processor The method in the above embodiment is performed.
  • the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores program codes, and when the program codes are executed by one or more processors, the processing includes the processing
  • the device of the controller executes the method in the above-mentioned embodiment.
  • the present application further provides a system, which includes the aforementioned one or more network devices.
  • the system may further include one or more of the aforementioned terminal devices.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are only illustrative.
  • the division of the modules is only a logical function division. In actual implementation, there may be other division methods.
  • multiple modules may be combined or integrated into Another system, or some features can be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of modules may be in electrical, mechanical or other forms.

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Abstract

本申请实施例提供一种寻呼方法、设备及存储介质，该方法包括：接入网设备接收来自核心网节点或第二终端设备的消息A，该消息A包括第一标识信息，该第一标识信息用于标识第一终端设备；接入网设备根据该第一标识信息，向第二终端设备发送用于寻呼第一终端设备的寻呼消息，该第二终端设备为该第一终端设备提供中继服务。提高了资源利用率。

Description

寻呼方法、设备及存储介质 技术领域
本申请实施例涉及通信技术，尤其涉及一种寻呼方法、设备及存储介质。
背景技术
在通信领域，用户设备(user equipment，UE)除了可以通过蜂窝通信接口即用户设备-通用移动通信系统陆地接入网络(UE-UTRAN，Uu)接口进行通信外，还可以通过直连通信接口即基于近场的业务通信(接口)5(proximity-based service communication(interface)5，PC5)接口直接进行用户设备之间的通信，PC5接口可用于数据面和控制面的信息传输等。用户设备处于网络覆盖之外或用户设备与无线接入网(random access network，RAN)间通信质量差时，还可以采用非直接通信方式，即通过PC5接口和Uu接口的通信架构实现中继通信。具体地，该用户设备(称为远端用户设备，或远端UE)的数据可以通过PC5接口传递至中继用户设备(也可以称为中继UE)，中继UE再通过中继UE与网络设备之间的Uu接口将远端UE的数据发送至网络。
然而，目前在远端UE处于空闲态时网络寻呼远端UE的寻呼方式还有待改进。
发明内容
本申请实施例提供一种寻呼方法、设备及存储介质，以提高了资源利用率。
第一方面，本申请实施例可提供一种寻呼方法，应用于接入网设备，该方法包括：
接收来自核心网节点的第一消息，该第一消息包括第一标识信息，该第一标识信息用于标识第一终端设备；
根据该第一标识信息，向第二终端设备发送寻呼消息，该第二终端设备为该第一终端设备提供中继服务，该寻呼消息用于寻呼该第一终端设备。
第二方面，本申请实施例还可提供一种寻呼方法，应用于AMF节点，该方法包括：
向接入网设备发送第一消息，该第一消息包括第一标识信息，该第一标识信息用于标识第一终端设备，该第二标识信息用于标识第二终端设备，该第二终端设备为该第一终端设备提供中继服务。
第三方面，本申请实施例可提供一种寻呼方法，应用于接入网设备，该方法包括：
接收来自第二终端设备的第三消息，该第三消息包括第一标识信息，该第一标识信息用于标识第一终端设备，该第二终端设备为该第一终端设备提供中继服务；
根据该第一标识信息，向第二终端设备发送寻呼消息，该第二终端设备为该第一终端设备提供中继服务，该寻呼消息用于寻呼该第一终端设备。
第四方面，本申请实施例可提供一种寻呼方法，应用于第二终端设备，该方法包括：
向接入网设备发送第三消息，该第三消息包括第一标识信息，该第一标识信息用于标识第一终端设备；
接收来自该接入网设备的寻呼消息，该寻呼消息用于寻呼该第一终端设备；
向该第一终端设备发送该寻呼消息，
其中，该第一终端设备处于无线资源控制RRC连接状态。
第五方面，本申请实施例可提供一种接入网设备，包括：
收发单元，用于接收来自核心网节点的第一消息，该第一消息包括第一标识信息，该第一标识信息用于标识第一终端设备；
处理单元，用于根据该第一标识信息，确定向第二终端设备发送寻呼消息，该第二终端设备为该第一终端设备提供中继服务，该寻呼消息用于寻呼该第一终端设备；
该收发单元还用于向第二终端设备发送寻呼消息。
第六方面，本申请实施例还可提供一种AMF节点，包括：
处理单元，用于确定第一消息，该第一消息包括第一标识信息，该第一标识信息用于标识第一终端设备，该第二标识信息用于标识第二终端设备，该第二终端设备为该第一终端设备提供中继服务；
收发单元，用于向接入网设备发送第一消息。
第七方面，本申请实施例可提供一种终端设备，包括：
收发单元，用于接收来自第二终端设备的第三消息，该第三消息包括第一标识信息，该第一标识信息用于标识第一终端设备，该第二终端设备为该第一终端设备提供中继服务；
处理单元，用于根据该第一标识信息，确定向第二终端设备发送寻呼消息，该第二终端设备为该第一终端设备提供中继服务，该寻呼消息用于寻呼该第一终端设备；
该收发单元还用于向第二终端设备发送寻呼消息。
第八方面，本申请实施例可提供一种终端设备，包括：
处理单元，用于确定第三消息，该第三消息包括第一标识信息，该第一标识信息用于标识第一终端设备；
收发单元，用于向接入网设备发送第三消息；
该收发单元还用于接收来自该接入网设备的寻呼消息，以及向该第一终端设备发送该寻呼消息，该寻呼消息用于寻呼该第一终端设备；
其中，该第一终端设备处于无线资源控制RRC连接状态。
第九方面，本申请实施例还可提供一种接入网设备，包括：
处理器、存储器、与网络设备进行通信的接口；
所述存储器存储计算机执行指令；
所述处理器执行所述存储器存储的计算机执行指令，使得所述处理器执行如第一方面或第三方面任一项提供的寻呼方法。
第十方面，本申请实施例还可提供一种AMF节点，包括：
处理器、存储器、与终端设备进行通信的接口；
所述存储器存储计算机执行指令；
所述处理器执行所述存储器存储的计算机执行指令，使得所述处理器执行如第二方面任一项提供的寻呼方法。
第十一方面，本申请实施例还可提供一种终端设备，包括：
处理器、存储器、与终端设备进行通信的接口；
所述存储器存储计算机执行指令；
所述处理器执行所述存储器存储的计算机执行指令，使得所述处理器执行如第四方面任一项提供的寻呼方法。
第十二方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机执行指令，当所述计算机执行指令被处理器执行时用于实现如第一方面至第四方面任一项所述的寻呼方法。
第十三方面，本申请实施例提供一种程序，当该程序被处理器执行时，用于执行如上第一方面至第四方面任一项所述的寻呼方法。
可选地，上述处理器可以为芯片。
第十四方面，本申请实施例提供一种计算机程序产品，包括程序指令，程序指令用于实现第一方面至第四方面任一项所述的寻呼方法。
第十五方面，本申请实施例提供了一种芯片，包括：处理模块与通信接口，该处理模 块能执行第一方面至第四方面任一项所述的寻呼方法。
进一步地，该芯片还包括存储模块(如，存储器)，存储模块用于存储指令，处理模块用于执行存储模块存储的指令，并且对存储模块中存储的指令的执行使得处理模块执行第一方面至第四方面任一项所述的寻呼方法。
附图说明
图1为适用于本申请的通信系统架构图；
图2为适用于申请实的中继通信场景的一个示意性架构图；
图3为本申请提供的层2中继的用户面协议栈的示意图；
图3A为本申请提供的层2中继的控制面协议栈的示意图；
图4为本申请实施例一提供的寻呼方法的示意性流程图；
图5为本申请实施例二提供的寻呼方法的示意性流程图；
图6为本申请实施例三提供的寻呼方法的示意性流程图；
图7为本申请提供的通信装置的示意性框图；
图8为本申请提供的终端设备的示意性结构图；
图9为本申请提供的接入网设备的示意性结构图；
图10为本申请提供的通信设备的示意性结构图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，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、完整地描述，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在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的说明书、权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本申请实施例的技术方案可以应用于各种通信系统，例如：长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunications system，UMTS)、全球微波接入互操作性(worldwide interoperability for microwave access，WiMAX)通信系统、第五代(5th generation，5G)系统或新无线(new radio，NR)以及未来的通信系统，如第六代移动通信系统等。本申请对此不作限定。
图1为适用于本申请的通信系统的示意性结构图。
如图1所示，5G核心网(5G core，5GC，或new generation core，NGC)包括如图1所示的接入和移动性管理功能(access and mobility management function，AMF)节点、会话管理功能(session management function，SMF)节点、用户面功能(user plane function，UPF)节点、鉴权服务器功能(authentication server function，AUSF)节点、策略控制功能(policy control function，PCF)节点、应用功能(application function，AF)节点、统一数据管理功能(unified data management，UDM)节点、网络切片选择功能(network slice selection function，NSSF)节点等多个功能单元。
在5G网络系统架构中，UE可以通过Uu口与接入网(access network，AN)进行接 入层连接，交互接入层消息及无线数据传输，UE通过N1口与核心网中的AMF节点进行非接入层(non-access stratum，NAS)连接，交互NAS消息。AMF节点主要用于移动性管理和接入管理等。核心网中的SMF节点是会话管理功能，主要用于会话管理、UE的网络互连协议(internet protocol,IP)地址分配和管理、选择可管理用户平面功能、策略控制、或收费功能接口的终结点以及下行数据通知、为用户面功能配置路由信息等。AMF节点在对UE进行移动性管理之外，还负责将从会话管理相关消息在UE和SMF之间的转发。核心网中的PCF节点用于指导网络行为的统一策略框架，为控制平面功能网元(例如AMF，SMF网元等)提供策略规则信息等PCF是的策略管理功能，负责制定对UE的移动性管理、会话管理、计费等相关的策略。核心网中的用户面功能UPF节点主要用于分组路由和转发、或用户面数据的服务质量(quality of service,QoS)处理等。通过N6接口与外部数据网络进行数据传输，通过N3接口与AN进行数据传输。UE通过Uu口接入5G网络后，在SMF的控制下建立协议数据单元(protocol data unit，PDU)会话进行数据传输。
具有基于进场的业务(proximity-based service，ProSe)能力的UE可以通过PC5接口与具有Prose能力的另外一个UE直接通信。
当一个UE既可以通过5G网络连接外部数据网络，还具有Prose能力时，这个UE可以充当中继UE(relay UE)，另外一个具有ProSe能力的远端UE(remote UE)可以通过PC5接口与relay UE建立直接连接，并通过relay UE与5G网络建立的PDU会话与外部网络交互，如图2所示。
图3为本申请提供的层2中继的用户面协议栈的示意图，如图3所示，relay UE仅用于对remote UE与服务于remote UE的接入网(如图3中的gNB)之间的空口数据进行中转，remote UE与服务于remote UE的UPF节点之间建立PDU会话，remote UE的数据通过remote UE自己的PDU会话转发到外部网络。其中，远端UE可以包括PC5无线链路控制(radio link control，RLC)层、PC5媒体接入控制(medium access control，MAC)层、PC5物理层(physical，PHY)以及应用(application，APP)层、PDU层、Uu服务数据适配协议(service data adaptation protocol，SDAP)层、Uu分组数据汇聚协议(packet data convergence protocol，PDCP)层。中继UE可以包括PC5-RLC层、PC5-MAC层、PC5-PHY层和Uu-RLC层、Uu-MAC层、Uu-PHY层以及适配(adaption，ADAPT)层。gNB可以包括Uu-RLC层、Uu-MAC层、Uu-PHY层以及适配层，以及Uu-PDCP层、Uu-SDAP层。通用无线分组业务(general packet radio service，GPRS)隧道协议-用户面(GPRS tunnel protocol-User plane，GTP-U)层、UDP层、IP层、数据链路层(data link layer)或称为L2、物理层或称为L1。远端UE的UPF节点可以包括PDU层、GTP-U层、UDP层、IP层、L2、L1。
图3A为本申请提供的层2中继的控制面协议栈示意图，如图3A所示，remote UE与5GC的NAS层可以通过relay UE、gNB的透传进行NAS信令的交互。Remote UE与gNB之间可以通过relay UE的透传进行Uu-RRC层、Uu-PDCP层的信令交互。Remote UE与Relay UE之间可以通过RLC信道进行信令交互。Relay UE与gNB之间可以通过Uu口的信令无线承载(signaling radio bearer，SRB)进行信令交互。gNB与5GC之间可以通过N2接口进行N2栈之间的信令交互。但本申请不限于此。
本申请实施例中的终端设备可以称为终端、用户设备(user equipment，UE)，终端设备可以是接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端设备、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端设备或者未来演进的公用陆地移动移动网(public land mobile network， PLMN)中的终端设备等，本申请实施例对此并不限定。
在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。此外，在本申请实施例中，终端设备还可以是车联网系统或物联网(internet of things，IoT)系统中的终端设备。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是GSM或CDMA系统中的基站(base transceiver station，BTS)，也可以是WCDMA系统中的基站(nodeB，NB)，还可以是LTE系统中的演进型基站(evolutional nodeB，eNB或eNodeB)，还可以是云无线接入网(cloud radio access network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、以及5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。
目前，中继UE通过PC5接口为远端UE提供中继服务的情况下，若远端UE进入空闲状态后，由于处于空闲状态的UE与接入网设备之间没有建立RRC连接，接入网设备没有保存处于空闲状态的远端UE的上下文。在网络需要寻呼远端UE时，接入网设备无法确定为该远端UE服务的中继UE，因此，接入网设备需要将寻呼消息分别发送给覆盖范围内的每个提供中继服务的UE。带来了较大的资源开销，资源利用率较低。为了解决上述问题，本申请实施例提出接入网设备获取远端UE的标识信息，且当远端UE处于空闲状态时，接入网设备不释放远端UE的标识信息，可以根据该远端UE的标识信息确定为该远端UE提供中继服务的中继UE。在网络需要寻呼远端UE时，接入网设备将寻呼该远端UE的寻呼消息发送给该远端UE对应的中继UE，能够避免由于接入网设备无法确定被寻呼UE对应的中继UE，而将寻呼消息发送给覆盖范围内的每个提供中继服务的UE的情况。提高了资源利用率。
下面结合附图对本申请实施例提供的寻呼方法进行说明。
图4是本申请实施例一提供的寻呼方法的一个示意性流程图。在图4实施例中，第二终端设备为第一终端设备提供中继服务。也就是说，第一终端设备为远端终端设备，第二终端设备为中继终端设备，
S410，接入网设备接收消息A，该消息A中包括第一终端设备的第一标识信息。
接入网设备在第二终端设备(即中继终端设备)处于连接状态(CONNECTED state)时，需要保持存储远端终端设备的该第一标识信息。或者说，接入网设备在中继终端设备处于连接状态(CONNECTED state)的情况下，不释放第一终端设备(远端终端设备)的该第一标识信息。
一种实施方式中，第二终端设备向接入网设备发送第三消息(即消息A的一个示例)，该第三消息中包括该第一标识信息。
相应地，接入网设备接收来自第二终端设备的该第三消息。接入网设备可以在第一终端设备(即远端终端设备)的连接状态接或空闲状态收到该第三消息，本申请对此不做限定。
作为示例非限定，该第三消息为远端设备上报消息。
接入网设备根据接收到的该第三消息，可以确定第二终端设备提供中继服务的第一终端设备的第一标识信息。
接入网设备接收到该第三消息后，向第二终端设备发送第四消息，该第四消息为该第 三消息的确认响应消息，用于通知第二终端设备成功接收第三消息。例如，该第四消息可以是远端终端设备上报确认消息。但本申请不限于此。
另一种实施方式中，核心网节点向接入网节点发送第一消息(即消息A的另一个示例)，该第一消息中包括该第一标识信息。
如图3A所示的控制面协议栈中，gNB接收到该第一消息后，在Uu接口上ADAPT层(adaption layer)中携带该第一终端设备(即remote UE)的第一标识信息，而其它层的信息都与第二终端设备(即relay UE)信息相同，从而gNB可以将第二终端设备与第一终端设备进行中继关联，即该第二终端设备为第一终端设备提供中继服务。
相应地，接入网设备接收来自核心网节点的该第一消息。接入网设备可以在第一终端设备(即远端终端设备)的连接状态接或空闲状态收到该第一消息，本申请对此不做限定。
作为示例非限定，该核心网节点为AMF节点。
接入网节点根据接收到的该第一消息，可以确定第二终端设备提供中继服务的第一终端设备的第一标识信息。
接入网设备接收到该第一消息后，向该核心网节点发送第二消息，该第二消息为该第一消息的确认响应消息，用于通知该核心网节点成功接收到该第一消息。
作为示例非限定，该第一标识信息为全球唯一用户设备临时标识(globally unique temporary UE identity，GUTI)或者临时移动用户标识(serving temporary mobile subscriber identity，S-TMSI)。
S420，接入网设备向第二终端设备发送寻呼消息，寻呼消息用于寻呼第一终端设备。
当第二终端设备进入空闲状态(IDLE state)后，网络侧若有下行数据需要发送，网络侧需要对第二终端设备进行寻呼，AMF节点向接入网节点发送寻呼消息，该消息中携带该第二终端设备的第三标识信息。该寻呼消息用于寻呼第一终端设备。
作为示例非限定，该第三标识信息为GUTI或S-TMSI。
需要说明的是，一个终端设备的S-TMSI为该终端设备的GUTI的截短信息，也就是说，S-TMSI为GUTI的一部分，GUTI中包括S-TMSI。也就是说，第三标识信息为第一标识信息，或者，第一标识信息为第三标识信息的截短信息，或者第三标识信息为第一标识信息的截短信息。
接入网设备接收到来自AMF节点的寻呼消息后，确定需要转发寻呼消息。接入网设备可以根据第三标识信息确定接收寻呼消息的目标设备为第一终端设备，并确定该第一终端设备的中继终端设备为第二终端设备，接入网设备将该寻呼消息转发给第二终端设备，再由该第二终端设备转发至第一终端设备。
根据上述方案，在网络需要寻呼远端UE时，接入网设备将寻呼该远端UE的寻呼消息发送给该远端UE对应的中继UE，能够避免由于接入网设备无法确定被寻呼UE对应的中继UE，而将寻呼消息发送给覆盖范围内的每个提供中继服务的UE的情况。提高了资源利用率。
图5是本申请实施例二提供的寻呼方法的一个示意性流程图。
S501，UE1与UE2执行中继UE发现及选择流程。
UE1在该过程中选择UE2作为中继终端设备。并在S502中，与UE2之间建立PC5连击，以实现UE1与UE2之间的直连通信。
S502，UE1与UE2之间建立PC5连接。
S503，UE1发起接入层(access stratum，AS)连接建立过程。
UE1通过UE2向RAN设备发送AS消息建立AS连接。
S504，UE1发起NAS连接建立过程。
UE1向AMF节点发送NAS消息以请求建立NAS连接，NAS消息封装在RRC消息中，RRC消息又被封装在PC5消息中发送给UE2，由UE2发送至RAN设备，再由RAN 设备转发至AMF节点。
S505，AMF节点向UE1发送注册接受(registration accept)消息或UE配置更新命令(UE configuration update command)消息。
UE1的注册过程中，AMF节点可以向UE1发送注册接受消息，通过该注册接受消息来携带5G-GUTI，以通知UE1的5G-GUTI；而在注册过程后，AMF节点可以根据策略(例如，策略可以是定时更新GUTI，避免临时标识被跟踪等，但本申请不限于此)，AMF通过UE配置更新命令消息来更新UE1的5G-GUTI。
相应地，UE1接收来自AMF节点的注册接受消息或UE配置更新命令消息。注册接受消息或UE配置更新命令消息中包括UE1的GUTI。需要说明的是，本实施例以第一标识信息为GUTI为例进行说明，但本申请不限于此，第一标识信息还可以是S-TMSI或其他用于标识UE1的标识信息。
S506，UE1向AMF节点发送注册完成(registration complete)消息或UE配置更新确认(UE configuration update ACK)消息。
若AMF节点在S505中向UE1发送注册接受消息，则UE1在S506中向AMF节点发送注册完成消息，以通知AMF节点注册完成。相应地，AMF节点接收来自UE1的注册接受消息，确定UE1完成注册。
若AMF节点在S505中向UE1发送UE配置更新命令消息，UE1在S506中向AMF节点发送UE配置更新确认消息。相应地，AMF节点接收来自UE1的UE配置更新确认消息，以确认完成UE配置更新。
S507，UE1向UE2发送PC5消息，该PC5消息中包括UE1的GUTI。
相应地，UE2接收来自UE1的PC5消息，UE2通过该PC5消息获取UE1的GUTI，以便UE2根据UE1的GUTI，接收UE1的寻呼消息。
S508，UE2向UE1发送PC5响应消息。
相应地，UE1接收来自UE2的PC5响应消息。
S509，UE2向RAN设备发送远端UE上报消息(即第三消息的一个示例)，该远端UE上报消息中包括UE1的GUTI。
相应地，RAN设备接收来自UE2的该远端UE上报消息，并根据该远端UE上报消息确定UE2提供中继服务的UE1的GUTI。可选地，在UE2处于连接状态的情况下，RAN设备需要存储该GUTI。也就是说，在UE2处于连接状态的情况下，RAN设备不释放UE2提供中继服务的远端终端终端设备的GUTI。以便根据GUTI，确定该GUTI对应的UE为UE2提供中继服务的远端终端设备，以转发寻呼消息。
S510，RAN设备向UE2发送远端UE上报确认消息。
相应地，UE2接收来自RAN设备的UE上报确认消息，已确定远端UE上报确认消息正确接收。
S511，AMF节点向RAN设备发送寻呼消息。
当UE1进入空闲态后，网络侧如果有下行数据发送，网络侧需要对UE进行寻呼，AMF节点向RAN设备发送用于寻呼UE1的寻呼(paging)消息，该寻呼消息中包括S-TMSI。相应地，RAN设备接收来自AMF节点的该寻呼消息。
S512，RAN设备向UE2发送该寻呼消息。
若UE2处于连接状态，RAN设备收到来自AMF节点的寻呼消息后，可以根据寻呼消息中的S-TMSI，确定该寻呼消息用于寻呼UE1。具体地，由于S-TMSI为GUTI的截短信息，RAN设备根据UE1的GUTI，可以确定该S-TMSI为UE1的寻呼消息。以及，RAN设备可以确定GUTI标识的UE1为UE2提供中继服务的UE。
若UE2处于空闲状态，RAN设备在寻呼信道广播该寻呼消息，相应地，UE2处于空闲状态时在寻呼信道检测UE2和UE1的寻呼消息。
S513，UE2向UE1发送该寻呼消息。
UE2在S512中接收到来自RAN设备的寻呼消息后，UE2确定该寻呼消息用于寻呼UE1，则UE2向UE1转发该寻呼消息。
图6是本申请实施例三提供的寻呼方法的一个示意性流程图。
需要说明的是图6所示的实施例三中的S601至S608，与图5所示的实施例中的S501至S508依次对应且相同，可以参考上述对图5的描述，为了简要，在此不再赘述。
S609，AMF节点向RAN设备发送N2消息，该N2消息中包括UE1的GUTI。
相应地，RAN设备接收来自AMF节点的N2消息，
一种实施方式中，如图3A所示的控制面协议栈中，gNB接收到该该N2消息后，在Uu接口上ADAPT层(adaption layer)中携带该UE1(即remote UE)的GUTI，而其它层的信息都与UE2(即relay UE)信息相同，从而gNB可以将UE2与UE1进行中继关联，即该UE2为UE1提供中继服务。
另一实施方式中，该N2消息中还包括UE2的标识信息。该N2消息具体用于指示UE2提供中继服务的UE1的GUTI。RAN设备接收到该N2消息后，可以根据该N2消息确定UE2提供中继服务的UE1的GUTI。
需要说明的是，实施例三以第一标识信息为GUTI为例进行说明，但本申请不限于此，该第一标识信息还可以是S-TMSI，或者其他用于标识UE1的标识信息。
可选地，在UE2处于连接状态的情况下，RAN设备需要存储该UE1的GUTI。也就是说，在UE2处于连接状态的情况下，RAN设备不释放UE2提供中继服务的远端终端终端设备的GUTI。以便RAN设备可以根据GUTI，确定该GUTI对应的UE为UE2提供中继服务的远端终端设备，以转发寻呼消息。
S610，RAN设备向AMF节点发送N2确认响应消息。
相应地，AMF节点接收来自RAN设备的该N2确认响应消息，以确认RAN设备成功接收N2消息。
需要说明的是，在本申请实施例的流程图中，步骤序号仅用于标识相应步骤，各个设备、节点执行步骤的顺序，由各个步骤之间的逻辑关系确定，步骤序号对步骤之间的执行顺序不做限定。例如，S609可以在S606之后执行，本申请对S609与S607、S608之间的先后顺序不做限定。但本申请不限于此。
图6所示的S611至S613，与图5所示的S511至S513依次对应且相同，具体实施方式可以参考上述对图5的描述，为了简要，在此不再赘述。
根据上述方案，在网络需要寻呼远端UE时，接入网设备将寻呼该远端UE的寻呼消息发送给该远端UE对应的中继UE，能够避免由于接入网设备无法确定被寻呼UE对应的中继UE，而将寻呼消息发送给覆盖范围内的每个提供中继服务的UE的情况。提高了资源利用率。
以上，结合图4至图6详细说明了本申请实施例提供的方法。以下介绍本申请实施例提供的装置。
图7是本申请实施例提供的通信装置的示意性框图。如图7所示，该通信装置700可以包括处理单元710和收发单元720。
在一种可能的设计中，该通信装置700可对应于上文方法实施例中的终端设备，即UE，或者配置于(或用于)终端设备中的芯片。
应理解，该通信装置700可对应于根据本申请实施例的方法400、500、600中的第一终端设备或第二终端设备，该通信装置700可以包括用于执行图4、图5、图6中的方法400、500、600中第一终端设备或第二终端设备执行的方法的单元。并且，该通信装置700中的各单元和上述其他操作和/或功能分别为了实现图4、图5、图6中的方法400、500、600的相应流程。
还应理解，该通信装置700为配置于(或用于)终端设备中的芯片时，该通信装置700中的收发单元720可以为芯片的输入/输出接口或电路，该通信装置700中的处理单元710可以为芯片中的处理器。
可选地，通信装置700的该处理单元710可以用于处理指令或者数据，以实现相应的操作。
可选地，通信装置700还可以包括存储单元730，该存储单元730可以用于存储指令或者数据，处理单元710可以执行该存储单元中存储的指令或者数据，以使该通信装置实现相应的操作，该通信装置700中的该通信装置700中的收发单元720为可对应于图8中示出的终端设备800中的收发器810，存储单元730可对应于图8中示出的终端设备800中的存储器。
应理解，各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明，为了简洁，在此不再赘述。
还应理解，该通信装置700为终端设备时，该通信装置700中的收发单元720为可通过通信接口(如收发器或输入/输出接口)实现，例如可对应于图8中示出的终端设备800中的收发器810，该通信装置700中的处理单元710可通过至少一个处理器实现，例如可对应于图8中示出的终端设备800中的处理器820，该通信装置700中的处理单元710可通过至少一个逻辑电路实现。
在另一种可能的设计中，该通信装置700可对应于上文方法实施例中的接入网设备，例如，或者配置于(或用于)接入网设备中的芯片。
应理解，该通信装置700可对应于根据本申请实施例的方法400、500、600中的接入网设备，该通信装置700可以包括用于执行图4、图5、图6中的方法400、500、600中接入网设备执行的方法的单元。并且，该通信装置700中的各单元和上述其他操作和/或功能分别为了实现图4、图5、图6中的方法400、500、600的相应流程。
还应理解，该通信装置700为配置于(或用于)接入网设备中的芯片时，该通信装置700中的收发单元720为芯片中的输入/输出接口或电路，该通信装置700中的处理单元710可为芯片中的处理器。
可选地，通信装置700的该处理单元710可以用于处理指令或者数据，以实现相应的操作。
可选地，通信装置700还可以包括存储单元730，该存储单元可以用于存储指令或者数据，处理单元可以执行该存储单元730中存储的指令或者数据，以使该通信装置实现相应的操作。该通信装置700中的存储单元730为可对应于图9中示出的接入网设备900中的存储器。
应理解，各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明，为了简洁，在此不再赘述。
还应理解，该通信装置700为接入网设备时，该通信装置700中的收发单元720为可通过通信接口(如收发器或输入/输出接口)实现，例如可对应于图9中示出的接入网设备900中的收发器910，该通信装置700中的处理单元710可通过至少一个处理器实现，例如可对应于图9中示出的接入网设备900中的处理器920，该通信装置700中的处理单元710可通过至少一个逻辑电路实现。
在另一种可能的设计中，该通信装置700可对应于上文方法实施例中的AMF节点，例如，或者配置于(或用于)AMF节点中的芯片。
应理解，该通信装置700可对应于根据本申请实施例的方法400、500、600中的AMF节点，该通信装置700可以包括用于执行图4、图5、图6中的方法400、500、600中AMF节点执行的方法的单元。并且，该通信装置700中的各单元和上述其他操作和/或功能分别为了实现图4、图5、图6中的方法400、500、600的相应流程。
还应理解，该通信装置700为配置于(或用于)AMF节点中的芯片时，该通信装置700中的收发单元720为芯片中的输入/输出接口或电路，该通信装置700中的处理单元710可为芯片中的处理器。
可选地，通信装置700的该处理单元710可以用于处理指令或者数据，以实现相应的操作。
可选地，通信装置700还可以包括存储单元730，该存储单元可以用于存储指令或者数据，处理单元可以执行该存储单元730中存储的指令或者数据，以使该通信装置实现相应的操作。该通信装置700中的存储单元730为可对应于图10中示出的通信设备1000中的存储器1030。
应理解，各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明，为了简洁，在此不再赘述。
还应理解，该通信装置700为AMF节点时，该通信装置700中的收发单元720为可通过通信接口(如收发器或输入/输出接口)实现，例如可对应于图10中示出的通信设备1000中的收发器1010，该通信装置700中的处理单元710可通过至少一个处理器实现，例如可对应于图10中示出的通信设备1000中的处理器1020，该通信装置700中的处理单元710可通过至少一个逻辑电路实现。
图8是本申请实施例提供的终端设备800的结构示意图。该终端设备800可应用于如图1所示的系统中，执行上述方法实施例中终端设备的功能。如图所示，该终端设备800包括处理器820和收发器810。可选地，该终端设备800还包括存储器。其中，处理器820、收发器810和存储器之间可以通过内部连接通路互相通信，传递控制和/或数据信号，该存储器用于存储计算机程序，该处理器820用于执行该存储器中的该计算机程序，以控制该收发器810收发信号。
上述处理器820可以和存储器可以合成一个处理装置，处理器820用于执行存储器中存储的程序代码来实现上述功能。具体实现时，该存储器也可以集成在处理器820中，或者独立于处理器820。该处理器820可以与图7中的处理单元对应。
上述收发器810可以与图7中的收发单元720对应。收发器810可以包括接收器(或称接收机、接收电路)和发射器(或称发射机、发射电路)。其中，接收器用于接收信号，发射器用于发射信号。
应理解，图8所示的终端设备800能够实现图4、图5、图6中的方法400、500、600实施例中涉及第一终端设备或第二终端设备的各个过程。终端设备800中的各个模块的操作和/或功能，分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述，为避免重复，此处适当省略详细描述。
上述处理器820可以用于执行前面方法实施例中描述的由终端设备内部实现的动作，而收发器810可以用于执行前面方法实施例中描述的终端设备向网络设备发送或从网络设备接收的动作。具体请见前面方法实施例中的描述，此处不再赘述。
可选地，上述终端设备800还可以包括电源，用于给终端设备中的各种器件或电路提供电源。
除此之外，为了使得终端设备的功能更加完善，该终端设备800还可以包括输入单元、显示单元、音频电路、摄像头和传感器等中的一个或多个，该音频电路还可以包括扬声器、麦克风等。
图9是本申请实施例提供的接入网设备的结构示意图，该接入网设备900可应用于如图1所示的系统中，执行上述方法实施例中接入网设备的功能。如图所示，该终端设备900包括处理器920和收发器910。可选地，该接入网设备900还包括存储器。其中，处理器920、收发器910和存储器之间可以通过内部连接通路互相通信，传递控制和/或数据信号，该存储器用于存储计算机程序，该处理器920用于执行该存储器中的该计算机程序， 以控制该收发器910收发信号。
应理解，图9所示的接入网设备900能够实现图4、图5、图6中的方法400、500、600中涉及接入网设备的各个过程。接入网设备900中的各个模块的操作和/或功能，分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述，为避免重复，此处适当省略详细描述。
应理解，图9所示出的接入网设备900仅为接入网设备的一种可能的架构，而不应对本申请构成任何限定。本申请所提供的方法可适用于其他架构的接入网设备。例如，包含CU、DU和AAU的接入网设备等。本申请对于接入网设备的具体架构不作限定。
图10是本申请实施例提供的通信设备的结构示意图，图10所示的通信设备具有AMF节点的功能，该通信设备1000可应用于如图1所示的系统中，执行上述方法实施例中AMF节点的功能。如图所示，该通信设备1000包括处理器1020和收发器1010。可选地，该通信设备1000还包括存储器。其中，处理器1020、收发器1010和存储器之间可以通过内部连接通路互相通信，传递控制和/或数据信号，该存储器用于存储计算机程序，该处理器1020用于执行该存储器中的该计算机程序，以控制该收发器1010收发信号。
应理解，图10所示的通信设备1000能够实现图4、图5、图6中的方法400、500、600中涉及AMF节点的各个过程。通信设备1000中的各个模块的操作和/或功能，分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述，为避免重复，此处适当省略详细描述。
本申请实施例还提供了一种处理装置，包括处理器和接口；该处理器用于执行上述任一方法实施例中的方法。
应理解，上述处理装置可以是一个或多个芯片。例如，该处理装置可以是现场可编程门阵列(field programmable gate array，FPGA)，可以是专用集成芯片(application specific integrated circuit，ASIC)，还可以是系统芯片(system on chip，SoC)，还可以是中央处理器(central processor unit，CPU)，还可以是网络处理器(network processor，NP)，还可以是数字信号处理电路(digital signal processor，DSP)，还可以是微控制器(micro controller unit，MCU)，还可以是可编程控制器(programmable logic device，PLD)或其他集成芯片。
在实现过程中，上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
应注意，本申请实施例中的处理器可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
本申请实施例提供的方法，本申请还提供一种计算机程序产品，该计算机程序产品包 括：计算机程序代码，当该计算机程序代码由一个或多个处理器执行时，使得包括该处理器的装置执行上述实施例中的方法。
根据本申请实施例提供的方法，本申请还提供一种计算机可读存储介质，该计算机可读存储介质存储有程序代码，当该程序代码由一个或多个处理器运行时，使得包括该处理器的装置执行上述实施例中的方法。
根据本申请实施例提供的方法，本申请还提供一种系统，其包括前述的一个或多个网络设备。还系统还可以进一步包括前述的一个或多个终端设备。
在本申请所提供的几个实施例中，应该理解到，所揭露的设备和方法，可以通过其它的方式实现。例如，以上所描述的设备实施例仅仅是示意性的，例如，该模块的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个模块可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，模块的间接耦合或通信连接，可以是电性，机械或其它的形式。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (38)

  1. 一种通信方法，其特征在于，所述方法包括：
    接收来自核心网节点的第一消息，所述第一消息包括第一标识信息，所述第一标识信息用于标识第一终端设备；
    根据所述第一标识信息，向第二终端设备发送寻呼消息，所述第二终端设备为所述第一终端设备提供中继服务，所述寻呼消息用于寻呼所述第一终端设备。
  2. 根据权利要求1所述的方法，其特征在于，所述第二终端设备处于无线资源控制RRC连接状态。
  3. 根据权利要求1或2所述的方法，其特征在于，在所述第二终端设备处于RRC连接状态的情况下，不释放所述第一标识信息。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述根据所述第一标识信息，向第二终端设备发送寻呼消息，包括：
    接收来自所述核心网节点的所述寻呼消息；
    根据所述寻呼消息和所述第一标识信息，向所述第二终端设备发送所述寻呼消息。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述核心网节点为接入和移动性管理功能AMF节点。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述方法还包括：
    向所述核心网节点发送第二消息，所述第二消息为所述第一消息的确认响应消息。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述第一标识信息为所述第一终端设备的全球唯一用户设备临时标识GUTI或临时移动用户标识S-TMSI。
  8. 一种通信方法，其特征在于，所述方法还包括：
    接收来自第二终端设备的第三消息，所述第三消息包括第一标识信息，所述第一标识信息用于标识第一终端设备，所述第二终端设备为所述第一终端设备提供中继服务；
    根据所述第一标识信息，向第二终端设备发送寻呼消息，所述第二终端设备为所述第一终端设备提供中继服务，所述寻呼消息用于寻呼所述第一终端设备。
  9. 根据权利要求8所述的方法，其特征在于，所述第二终端设备处于无线资源控制RRC连接状态。
  10. 根据权利要求8或9所述的方法，其特征在于，在所述第二终端设备处于RRC连接状态的情况下，不释放所述第一标识信息。
  11. 根据权利要求8至10中任一项所述的方法，其特征在于，所述根据所述第一标识信息，向第二终端设备发送寻呼消息，包括：
    接收来自核心网节点的所述寻呼消息；
    根据所述寻呼消息和所述第一标识信息，向所述第二终端设备发送所述寻呼消息。
  12. 根据权利要求8至11中任一项所述的方法，其特征在于，所述方法还包括：
    向所述第二终端设备发送第四消息，所述第四消息为所述第三消息的确认响应消息。
  13. 根据权利要求8至12中任一项所述的方法，其特征在于，所述第一标识信息为所述第一终端设备的全球唯一用户设备临时标识GUTI或临时移动用户标识S-TMSI。
  14. 一种通信方法，其特征在于，包括：
    向接入网设备发送第三消息，所述第三消息包括第一标识信息，所述第一标识信息用于标识第一终端设备；
    接收来自所述接入网设备的寻呼消息，所述寻呼消息用于寻呼所述第一终端设备；
    向所述第一终端设备发送所述寻呼消息，
    其中，所述第一终端设备处于无线资源控制RRC连接状态。
  15. 根据权利要求14所述的方法，其特征在于，所述向接入网设备发送第一标识信息 之前，所述方法还包括：
    接收来自所述第一终端设备的所述第一标识信息。
  16. 根据权利要求14或15所述的方法，其特征在于，所述方法还包括：
    接收来自所述接入设备的第四消息，所述第四消息为所述第三消息的确认响应消息。
  17. 根据权利要求14至16中任一项所述的方法，其特征在于，所述第一标识信息为所述第一终端设备的全球唯一用户设备临时标识GUTI或临时移动用户标识S-TMSI。
  18. 一种通信装置，其特征在于，包括：
    收发单元，用于接收来自核心网节点的第一消息，所述第一消息包括第一标识信息，所述第一标识信息用于标识第一终端设备；
    处理单元，用于根据所述第一标识信息，向第二终端设备发送寻呼消息，所述第二终端设备为所述第一终端设备提供中继服务，所述寻呼消息用于寻呼所述第一终端设备。
  19. 根据权利要求18所述的装置，其特征在于，所述第二终端设备处于无线资源控制RRC连接状态。
  20. 根据权利要求18或19所述的装置，其特征在于，还包括：
    存储单元，用于在所述第二终端设备处于RRC连接状态的情况下，不释放或保持存储所述第一标识信息。
  21. 根据权利要求18至20中任一项所述的装置，其特征在于，所述收发单元还用于
    接收来自所述核心网节点的所述寻呼消息；
    根据所述寻呼消息和所述第一标识信息，向所述第二终端设备发送所述寻呼消息。
  22. 根据权利要求18至21中任一项所述的装置，其特征在于，所述通信装置配置于核心网节点为接入和移动性管理功能AMF节点。
  23. 根据权利要求18至22中任一项所述的装置，其特征在于，
    所述收发单元还用于向所述核心网节点发送第二消息，所述第二消息为所述第一消息的确认响应消息。
  24. 根据权利要求18至23中任一项所述的装置，其特征在于，所述第一标识信息为所述第一终端设备的全球唯一用户设备临时标识GUTI或临时移动用户标识S-TMSI。
  25. 一种通信装置，其特征在于，包括：
    收发单元，用于接收来自第二终端设备的第三消息，所述第三消息包括第一标识信息，所述第一标识信息用于标识第一终端设备，所述第二终端设备为所述第一终端设备提供中继服务；
    处理单元，用于根据所述第一标识信息，确定向第二终端设备发送寻呼消息，所述第二终端设备为所述第一终端设备提供中继服务，所述寻呼消息用于寻呼所述第一终端设备；
    所述收发单元还用于向所述第二终端设备发送所述寻呼消息。
  26. 根据权利要求25所述的装置，其特征在于，所述第二终端设备处于无线资源控制RRC连接状态。
  27. 根据权利要求25或26所述的装置，其特征在于，还包括：
    存储单元，用于在所述第二终端设备处于RRC连接状态的情况下，不释放或保持存储所述第一标识信息。
  28. 根据权利要求25至27中任一项所述的装置，其特征在于，所述收发单元具体用于
    接收来自核心网节点的所述寻呼消息；
    根据所述寻呼消息和所述第一标识信息，向所述第二终端设备发送所述寻呼消息。
  29. 根据权利要求25至28中任一项所述的装置，其特征在于，
    所述收发单元还用于向所述第二终端设备发送第四消息，所述第四消息为所述第三消息的确认响应消息。
  30. 根据权利要求25至29中任一项所述的装置，其特征在于，所述第一标识信息为所述第一终端设备的全球唯一用户设备临时标识GUTI或临时移动用户标识S-TMSI。
  31. 一种通信装置，其特征在于，包括：
    处理单元，用于确定第三消息，所述第三消息包括第一标识信息，所述第一标识信息用于标识第一终端设备；
    收发单元，用于向接入网设备发送第三消息；
    所述收发单元还用于接收来自所述接入网设备的寻呼消息，以及向所述第一终端设备发送所述寻呼消息，所述寻呼消息用于寻呼所述第一终端设备，
    其中，所述第一终端设备处于无线资源控制RRC连接状态。
  32. 根据权利要求31所述的装置，其特征在于，所述收发单元向接入网设备发送第一标识信息之前，
    所述收发单元还用于接收来自所述第一终端设备的所述第一标识信息。
  33. 根据权利要求31或32所述的装置，其特征在于，包括：
    所述收发单元还用于接收来自所述接入设备的第四消息，所述第四消息为所述第三消息的确认响应消息。
  34. 根据权利要求31至33中任一项所述的装置，其特征在于，所述第一标识信息为所述第一终端设备的全球唯一用户设备临时标识GUTI或临时移动用户标识S-TMSI。
  35. 一种通信设备，其特征在于，包括：
    处理器、存储器、与终端设备进行通信的接口；
    所述存储器存储计算机执行指令；
    所述处理器执行所述存储器存储的计算机执行指令，使得所述处理器执行如权利要求1至17中任一项所述的通信方法。
  36. 一种计算机可读存储介质，其特征在于，包括计算机程序，当其由一个或多个处理器执行时，使得包括所述处理器的装置执行如权利要求1至17中任一项所述的方法。
  37. 一种计算机程序产品，其特征在于，所述计算机程序产品包括：计算机程序，当所述计算机程序被运行时，使得计算机执行如权利要求1至17中任一项所述的方法。
  38. 一种芯片，其特征在于，包括至少一个处理器和通信接口；
    所述通信接口用于接收输入所述芯片的信号或从所述芯片输出的信号，所述处理器与所述通信接口通信且通过逻辑电路或执行代码指令用于实现如权利要求1至17中任一项所述的方法。
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