WO2022032594A1 - 中继通信的方法及设备 - Google Patents

中继通信的方法及设备 Download PDF

Info

Publication number
WO2022032594A1
WO2022032594A1 PCT/CN2020/109018 CN2020109018W WO2022032594A1 WO 2022032594 A1 WO2022032594 A1 WO 2022032594A1 CN 2020109018 W CN2020109018 W CN 2020109018W WO 2022032594 A1 WO2022032594 A1 WO 2022032594A1
Authority
WO
WIPO (PCT)
Prior art keywords
plmn
remote device
relay
target
remote
Prior art date
Application number
PCT/CN2020/109018
Other languages
English (en)
French (fr)
Inventor
刘建华
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 BR112022025313A priority Critical patent/BR112022025313A2/pt
Priority to EP20949092.9A priority patent/EP4142370A4/en
Priority to KR1020237005467A priority patent/KR20230049646A/ko
Priority to PCT/CN2020/109018 priority patent/WO2022032594A1/zh
Priority to CN202310102555.6A priority patent/CN116074920A/zh
Priority to CN202080099879.3A priority patent/CN115398978A/zh
Priority to AU2020463022A priority patent/AU2020463022A1/en
Priority to JP2023508617A priority patent/JP2023542468A/ja
Publication of WO2022032594A1 publication Critical patent/WO2022032594A1/zh
Priority to US17/991,231 priority patent/US20230090887A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • 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 the field of communications, and more particularly, to a method and device for relaying communications.
  • the remote terminal In the New Radio (NR) system, the remote terminal (remote UE) can establish a direct connection with the relay terminal (relay UE) through the PC5 interface, and connect to the network through the relay terminal.
  • the remote terminal needs to select a public land mobile network (Public Land Mobile Network, PLMN) and a relay terminal to establish a communication connection with the network.
  • PLMN Public Land Mobile Network
  • the embodiments of the present application provide a method and device for relaying communication.
  • a remote terminal can select a relaying device based on a selected PLMN, so that only different PLMNs with a relaying protocol can relay services to each other, thereby optimizing relay communication. .
  • a method for relaying communication comprising:
  • the remote device selects the target PLMN
  • the remote device selects a target relay device according to the target PLMN.
  • a remote device for performing the method in the above-mentioned first aspect.
  • the remote device includes a functional module for executing the method in the first aspect.
  • a remote device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.
  • an apparatus for implementing the method in the above-mentioned first aspect.
  • the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device in which the apparatus is installed executes the method in the above-mentioned first aspect.
  • a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute the method in the above-mentioned first aspect.
  • a computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of the first aspect above.
  • a computer program which, when run on a computer, causes the computer to perform the method of the above-mentioned first aspect.
  • the remote terminal can select the target relay device based on the selected target PLMN, and it is possible to realize that only different PLMNs with a relay protocol can relay services to each other, thereby optimizing relay communication.
  • FIG. 1 is a schematic diagram of a communication system architecture to which an embodiment of the present application is applied.
  • FIG. 2 is a schematic diagram of a relay network architecture provided by the present application.
  • FIG. 3 is a schematic diagram of a user plane transmission protocol stack provided by the present application.
  • FIG. 4 is a schematic diagram of another user plane transmission protocol stack provided by the present application.
  • FIG. 5 is a schematic diagram of a remote terminal and a relay terminal provided by the present application from different PLMNs.
  • FIG. 6 is a schematic flowchart of a method for relaying communication according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of selecting a target PLMN and a target relay device according to an embodiment of the present application.
  • FIG. 8 is another schematic flowchart of selecting a target PLMN and a target relay device according to an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a remote device provided according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • Wireless Fidelity Wireless Fidelity
  • WiFi fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device can be a station (STATION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • PLMN Public Land Mobile Network
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • a mobile phone Mobile Phone
  • a tablet computer Pad
  • a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
  • augmented reality (Augmented Reality, AR) terminal Equipment wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • 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 network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc.
  • the network device may also be a base station set in a location such as land or water.
  • a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
  • the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell).
  • Pico cell Femto cell (Femto cell), etc.
  • These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.
  • the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
  • a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
  • a terminal device with Proximity-based Services (ProSe) capability can communicate directly with another terminal device with ProSe capability through the PC5 interface.
  • a terminal device can not only connect to an external data network through the 5th Generation (The 5th Generation, 5G) network, but also has the ProSe capability
  • the terminal device can act as a relay terminal (relay UE), and another one has the ProSe capability.
  • the remote terminal (remote UE) can establish a direct connection with the relay terminal through the PC5 interface, and interact with the external network through the Protocol Data Unit (PDU) session established between the relay terminal and the 5G network.
  • PDU Protocol Data Unit
  • the remote terminal is connected to the relay terminal through the PC5 interface, and the relay terminal is connected to the Next Generation Evolutional Radio Access Network (NG-RAN) through the Uu interface, thereby connecting to 5G
  • the core network (5G Core Network, 5GC) 5G Core Network, 5GC
  • 5GC is connected to the application server (application server, AS) through the N6 interface.
  • FIG. 2 uses a 5G communication system as an example to illustrate, of course, it can also be applied to other 3GPP communication systems, such as a 4G communication system, or a future 3GPP communication system, which is not limited in this application.
  • the application server (AS) in FIG. 2 may also be other terminal devices or an external public safety Internet.
  • a layer 2-based terminal-to-network (UE-to-Network) relay is introduced.
  • the UE-to-Network relay can directly connect to the network, and the remote terminal uses the end-to-end packet data convergence protocol (Packet Data Convergence Protocol).
  • the relay device at the Data Convergence Protocol, PDCP) layer is connected to the access network (Access Network, AN) and the core network (Core Network, CN).
  • Figure 3 shows the user plane transmission protocol stack related to the PDU session, specifically involving the remote terminal and UE-to-Network relay in layer 2.
  • the PDU layer corresponds to PDUs carried between a remote terminal and a data network (DN) through a PDU session.
  • DN data network
  • the two endpoints of the PDCP link are the remote terminal and the gNB.
  • the relay function is performed under PDCP. This means that data security between the remote terminal and the gNB is ensured without exposing the raw data at the remote terminal to the UE-to-Network relay.
  • the remote terminal may specifically include the following layers: application (application, APP), PDU, Uu-Service Data Adaptation Protocol (SDAP), Uu-PDCP, PC5-radio link control (Radio Link Control, RLC), PC5-Media Access Control (MAC), PC5-Physics (Physics, PHY).
  • the UE-to-Network relay may specifically include the following layers: Adaptation, PC5-RLC, PC5-MAC, PC5-PHY, Uu-RLC, Uu-MAC, Uu-PHY.
  • the gNB may specifically include the following layers: Uu-SDAP, Uu-PDCP, Adaptation, Uu-RLC, Uu-MAC, Uu-PHY, GPRS Tunneling Protocol for User Plane (GTP-U) , User Datagram Protocol (UDP), Internet Protocol (Internet Protocol, IP), Layer 2 (L2), Layer 1 (L1).
  • the User Plane Function (UPF) entity of the remote terminal may specifically include the following layers: PDU layer, GTP-U, UDP, IP, L2, and L1.
  • the UE-to-Network relay and the adaptation layer in the gNB can distinguish between the Signaling Radio Bearers (SRB) and the Data Radio Bearers of a specific remote terminal Bearer, DRB).
  • the adaptation layer is also responsible for mapping PC5 traffic to one or more DRBs of Uu.
  • FIG 4 shows the non-contact connection of the remote terminal to the Non-Access Stratum Mobile management (NAS-MM) and Non-Access Stratum session management (NAS-SM) components
  • the protocol stack connected to the access layer (Non-Access Stratum, NAS).
  • NAS messages are transmitted transparently between the remote terminal and the gNB through a layer 2 UE-to-Network relay.
  • PDCP end-to-end connection where the role of the UE-to-Network relay is to relay PDUs through the signaling radio bearer without any modification.
  • the gNB and the access and mobility management function (Access and Mobility Management Function, AMF) entity are connected through the N2 interface.
  • the AMF entity and the Session Management Function (SMF) entity are connected through the N11 interface.
  • the role of the UE-to-Network relay is to relay PDUs from the signaling radio bearer without any modification.
  • AMF Access and Mobility Management Function
  • the parameters used for UE-to-network relay terminal discovery and for communication via NR PC5 can be provided to the remote terminal as follows:
  • PCF Policy Control Function
  • the Home Public Land Mobile Network (HPLMN) PCF entity shall be able to provide terminal equipment with authorization to operate as a remote terminal or UE-to-UE-to-Network relay terminal on a per PLMN basis.
  • the serving PLMN shall also be able to provide/revoke such authorization, in which case it shall override any corresponding information provided by the HPLMN.
  • the remote terminal and the relay terminal are from different PLMNs, as shown in Figure 5 below, the remote terminal is from PLMN1, and the relay terminal is from PLMN2.
  • the UE-to-Network relay terminal needs to initiate a service request process and establish a relay bearer on the Uu interface. This will consume CN resources and potential resources of the relay (resources should be identified as RAN2).
  • the relay terminal can determine whether the long-distance traffic can be forwarded according to the protocol between the PLMNs.
  • the remote terminal-NAS layer will still perform PLMN selection, and the candidate PLMN for PLMN selection should be authorized to perform layer 2 based UE-to-Network relay terminal.
  • the terminal device In a normal PLMN over the Uu interface, the terminal device should scan all radio frequency (RF) channels in the frequency band according to its capabilities to find an available PLMN. The terminal device reads its system information to find out which PLMN the cell belongs to. Then the NAS layer performs PLMN selection, and the Access Stratum (AS) layer performs cell selection on the selected PLMN.
  • RF radio frequency
  • the remote terminal When layer 2-based relay is introduced, if the serving PLMN of the discovered candidate relay is not authorized to the PLMN for relaying, the remote terminal will not regard the PLMN and other PLMNs supported by the cell where the candidate relay is located as Available PLMNs for PLMN selection. This means that only PLMNs authorized for relaying will be considered for PLMN selection.
  • the present application proposes a relay communication solution, and the remote terminal can select the relay terminal based on the PLMN, thereby improving the selection accuracy of the relay terminal and the PLMN.
  • FIG. 6 is a schematic flowchart of a method 200 for relaying communication according to an embodiment of the present application. As shown in FIG. 6 , the method 200 may include at least part of the following contents:
  • the remote device selects the target PLMN
  • the remote device selects a target relay device according to the target PLMN.
  • the remote device may be a remote terminal (remote UE), the target relay device may be a relay terminal (relay UE), and the remote device and the target relay device may pass through PC5 interface communication.
  • remote UE remote terminal
  • relay UE relay terminal
  • PC5 interface communication PC5 interface communication
  • the target relay device may be directly connected to the network, that is, the target relay device may be a terminal-to-network (UE-to-Network) relay device.
  • UE-to-Network terminal-to-network
  • the remote device may implement relay communication with the target relay device through the target PLMN.
  • the foregoing S210 may be performed by the NAS layer of the remote device, and specifically, the NAS layer of the remote device may select the target PLMN.
  • the above-mentioned S220 can be performed by the proximity business (Proximity-based Services, ProSe) layer of the remote device, specifically: the ProSe layer of the remote device is selected according to the target PLMN of the NAS layer of the remote device. to select the target relay device.
  • ProSe Proximity-based Services
  • the foregoing S210 may specifically be:
  • the NAS layer of the remote device acquires at least one selectable PLMN from the ProSe layer of the remote device, and the NAS layer of the remote device selects the target PLMN from the at least one PLMN.
  • the ProSe layer of the remote device actively provides the at least one PLMN to the NAS layer of the remote device.
  • the ProSe layer of the remote device After obtaining at least one PLMN available for selection, the ProSe layer of the remote device provides the at least one PLMN to the NAS layer of the remote device based on a request of the NAS layer of the remote device.
  • the ProSe layer of the remote device does not determine an optional PLMN, the ProSe layer of the remote device will not provide the PLMN to the NAS layer of the remote device, that is, the NAS layer of the remote device cannot select the PLMN. out the target PLMN.
  • the ProSe layer of the remote device may determine the at least one PLMN through the following example 1 or example 2.
  • the ProSe layer of the remote device determines the at least one PLMN according to the serving PLMN of one or more relay devices, the cell PLMN of the one or more relay devices, and the authorized PLMN of the remote device.
  • the ProSe layer of the remote device determines at least one relay device in the one or more relay devices, and the serving PLMN of the at least one relay device belongs to the authorized PLMN of the remote device; And the ProSe layer of the remote device determines a PLMN belonging to an authorized PLMN of the remote device in the cell PLMN of the at least one relay device as the at least one PLMN.
  • the authorized PLMN of the remote device is indicated or configured by the PCF entity.
  • the remote device receives the authorized PLMN information sent by the PCF entity, where the authorized PLMN information is used to indicate the authorized PLMN of the remote device.
  • the PLMN indicated by the authorized PLMN information may include one or more relay PLMNs.
  • the PLMNs indicated by the authorized PLMN information may include one or more PLMNs with relay protocols.
  • the PCF entity indicates through the authorized PLMN information: PLMN1, 2, 3, 4, 5, 7, and 8 are authorized for relaying, while PLMN6 is not authorized for relaying.
  • the ProSe layer of the remote device obtains first information sent by the one or more relay devices, respectively, where the first information includes the serving PLMN of the corresponding relay device.
  • the first information is discovery notification information or discovery response information.
  • the remote device can acquire the serving PLMN of the corresponding relay device in the process of discovering the relay device.
  • the remote device receives the discovery notification information 1 sent by the relay device 1, and the discovery notification information 1 includes the service PLMN1 of the relay device 1; the remote device receives the discovery notification information 2 sent by the relay device 2, the discovery notification The information 2 includes the serving PLMN2 of the relay device 2 .
  • the ProSe layer of the remote device acquires second information sent by the one or more relay devices, respectively, where the second information includes the cell PLMN of the corresponding relay device.
  • the second information may be system information (System Information, SI).
  • SI System Information
  • the remote device can obtain the cell PLMN corresponding to the relay device from the cell SI forwarded by the relay device.
  • the relay device 1 obtains the SI from the system information of its cell, and the SI includes the cell PLMN of the relay device 1.
  • the relay device 1 forwards the SI to the remote device, so that the remote device obtains the SI.
  • the ProSe layer of the remote device determines the at least one PLMN according to the serving PLMN of one or more relay devices and the authorized PLMN of the remote device.
  • the ProSe layer of the remote device determines at least one relay device in the one or more relay devices, and the serving PLMN of the at least one relay device belongs to the authorized PLMN of the remote device; And the ProSe layer of the remote device determines the serving PLMN of the at least one relay device as the at least one PLMN.
  • the authorized PLMN of the remote device is indicated or configured by the PCF entity.
  • the remote device receives the authorized PLMN information sent by the PCF entity, where the authorized PLMN information is used to indicate the authorized PLMN of the remote device.
  • the PLMN indicated by the authorized PLMN information may include one or more relay PLMNs.
  • the PLMNs indicated by the authorized PLMN information may include one or more PLMNs with relay protocols.
  • the PCF entity indicates through the authorized PLMN information: PLMN1, 2, 3, 4, 5, 7, and 8 are authorized for relaying, while PLMN6 is not authorized for relaying.
  • the ProSe layer of the remote device obtains first information sent by the one or more relay devices, respectively, where the first information includes the serving PLMN of the corresponding relay device.
  • the first information is discovery notification information or discovery response information.
  • the remote device can acquire the serving PLMN of the corresponding relay device in the process of discovering the relay device.
  • the remote device receives the discovery notification information 1 sent by the relay device 1, and the discovery notification information 1 includes the service PLMN1 of the relay device 1; the remote device receives the discovery notification information 2 sent by the relay device 2, the discovery notification The information 2 includes the serving PLMN2 of the relay device 2 .
  • the one or more relay devices are relay devices discovered by the remote device through mode (Model) A or Model B.
  • Model A the remote device discovers the relay device based on the received discovery notification information sent by the relay device; in Model B, the remote device sends discovery information, and the relay device receives the discovery information Then, the discovery response information is fed back to the remote device, and the remote device can discover the relay device based on the received discovery response information.
  • the first information may be discovery notification information in Model A, and the first information may also be discovery response information in Model B.
  • the above S220 may specifically be:
  • the ProSe layer of the remote device obtains the target PLMN from the NAS layer of the remote device; and the ProSe layer of the remote device selects a target relay device according to the target PLMN.
  • the NAS layer of the remote device actively provides the target PLMN to the ProSe layer of the remote device.
  • the NAS layer of the remote device After selecting the target PLMN, the NAS layer of the remote device provides the target PLMN to the ProSe layer of the remote device based on a request of the ProSe layer of the remote device.
  • S220 may specifically be:
  • the ProSe layer of the remote device determines a first relay device of one or more relay devices as the target relay device, wherein the cell PLMN of the first relay device includes the target PLMN.
  • the ProSe layer of the remote device obtains the second information sent by the one or more relay devices, respectively, where the second information includes the cell PLMN of the corresponding relay device.
  • the second information may be system information (System Information, SI).
  • SI System Information
  • the remote device can obtain the cell PLMN corresponding to the relay device from the cell SI forwarded by the relay device.
  • the remote terminal can select a target relay device based on the selected target PLMN, so that only different PLMNs with a relay protocol can relay services to each other, thereby optimizing relay communication.
  • the relay communication method 200 described in this application will be described in detail below through Embodiment 1 and Embodiment 2.
  • the remote terminal can select a target PLMN and a target relay device through steps 11 to 17, and the remote terminal can realize relay communication with the target relay device based on the target PLMN, and in addition , the target relay device is directly connected to the network device, that is, the target relay device may be a terminal-to-network (UE-to-Network) relay device.
  • the remote terminal has discovered relay device 1, relay device 2 and relay device 3 through Model A or Model B, and learned that the service PLMN of relay device 1 is PLMN 1.
  • the serving PLMN of relay device 2 is PLMN 6, and the serving PLMN of relay device 3 is PLMN 5.
  • the PLMN authorized by the PCF entity of the remote terminal includes PLMN 1, 2, 3, 4, 5, 7, 8, that is, PLMN 1, 2, 3, 4, 5, 7, 8 can be used for relay, while PLMN 6 cannot be used for relay.
  • the Radio Resource Control (RRC) layer of the remote terminal receives the SI information 1 sent by the relay device 1, the SI information 2 sent by the relay device 2, and the SI information 3 sent by the relay device 3, respectively.
  • RRC Radio Resource Control
  • SI information 1 includes PLMN 1, 2, 3, 4, that is, PLMN 1, 2, 3, 4 is the cell PLMN of relay device 1;
  • SI information 2 includes PLMN 5, 6, 7, 8, that is, PLMN 5, 6, 7, and 8 are the cell PLMNs of the relay device 2;
  • the SI information 3 includes PLMNs 3, 4, 5, and 6, that is, PLMNs 3, 4, 5, and 6 are the cell PLMNs of the relay device 3.
  • the specific PLMN information may be as shown in Table 1.
  • the RRC layer of the remote terminal forwards the received SI information 1, SI information 2 and SI information 3 to the ProSe layer of the remote terminal.
  • the ProSe layer of the remote terminal determines the alternative PLMN.
  • the ProSe layer of the remote terminal checks the PLMN information of each relay device.
  • the serving PLMN (PLMN1) of the relay device 1 is an authorized PLMN
  • the serving PLMN (PLMN 6) of the relay device 2 is an unauthorized PLMN.
  • PLMN, the serving PLMN (PLMN 5) of relay device 3 is an authorized PLMN, and relay device 1 and relay device 3 are selected from the three relay devices (due to the difference between relay device 1 and relay device 3).
  • the serving PLMN is an authorized PLMN); then, the authorized PLMNs are selected in the cell PLMN of the relay device 1, that is, PLMN 1, 2, 3, 4, and the cell PLMN of the relay device 3 is selected to be Authorized PLMN, namely PLMN 3, 4, 5; finally, the ProSe layer of the remote terminal uses PLMN 1, 2, 3, 4, 5 as the optional PLMN.
  • the ProSe layer of the remote terminal provides PLMN 1, 2, 3, 4, and 5 to the NAS layer of the remote terminal as optional PLMNs.
  • the NAS layer of the remote terminal selects PLMN 2 from PLMN 1, 2, 3, 4, and 5 as the target PLMN.
  • the NAS layer of the remote terminal provides PLMN 2 as the target PLMN to the ProSe layer of the remote terminal.
  • the ProSe layer of the remote terminal determines the relay device 1 as the target relay device according to the PLMN 2 (because the cell PLMN of the relay device 1 includes the PLMN 2).
  • the remote terminal can select the target PLMN and the target relay device through steps 21 to 25, and the remote terminal can realize relay communication with the target relay device based on the target PLMN, and in addition , the target relay device is directly connected to the network device, that is, the target relay device may be a terminal-to-network (UE-to-Network) relay device.
  • the remote terminal has discovered relay device 1, relay device 2 and relay device 3 through Model A or Model B, and learned that the service PLMN of relay device 1 is PLMN 1.
  • the serving PLMN of relay device 2 is PLMN 6, and the serving PLMN of relay device 3 is PLMN 5.
  • the PLMN authorized by the PCF entity of the remote terminal includes PLMN 1, 2, 3, 4, 5, 7, 8, that is, PLMN 1, 2, 3, 4, 5, 7, 8 can be used for relay, while PLMN 6 cannot be used for relay.
  • the specific PLMN information may be as shown in Table 2.
  • the ProSe layer of the remote terminal determines the alternative PLMN.
  • the ProSe layer of the remote terminal checks the PLMN information of each relay device.
  • the serving PLMN (PLMN 1) of the relay device 1 is an authorized PLMN
  • the serving PLMN (PLMN 6) of the relay device 2 is an unauthorized PLMN.
  • PLMN, the serving PLMN (PLMN 5) of the relay device 3 is the authorized PLMN, and the relay device 1 and the relay device 3 are selected from the three relay devices (due to the relay device 1 and the relay device 3).
  • the serving PLMN is an authorized PLMN); then, the ProSe layer of the remote terminal takes PLMN 1 and PLMN 5 as the optional PLMN.
  • the ProSe layer of the remote terminal provides PLMN 1 and PLMN 5 as alternative PLMNs to the NAS layer of the remote terminal.
  • the NAS layer of the remote terminal selects PLMN 5 as the target PLMN from PLMN 1 and PLMN 5.
  • the NAS layer of the remote terminal provides PLMN 5 as the target PLMN to the ProSe layer of the remote terminal.
  • the ProSe layer of the remote terminal determines that the relay device 2 is the target relay device according to the PLMN 5 (because the cell PLMN of the relay device 2 includes the PLMN 5).
  • the RRC layer of the remote terminal may receive the SI information 1 sent by the relay device 1, the SI information 2 sent by the relay device 2, and the SI information 3 sent by the relay device 3, respectively.
  • SI information 1 includes PLMN 1, 2, 3, 4, that is, PLMN 1, 2, 3, 4 is the cell PLMN of relay device 1
  • SI information 2 includes PLMN 5, 6, 7, 8, that is, PLMN 5, 6, 7, and 8 are the cell PLMNs of the relay device 2
  • the SI information 3 includes PLMNs 3, 4, 5, and 6, that is, PLMNs 3, 4, 5, and 6 are the cell PLMNs of the relay device 3.
  • FIG. 9 shows a schematic block diagram of a remote device 300 according to an embodiment of the present application.
  • the remote device 300 includes:
  • a processing unit 310 configured to select a target public land mobile network PLMN;
  • the processing unit 310 is further configured to select a target relay device according to the target PLMN.
  • processing unit 310 is specifically configured to:
  • processing unit 310 is also used for:
  • the ProSe layer controlling the remote device determines the at least one PLMN according to the serving PLMN of the one or more relay devices, the cell PLMN of the one or more relay devices, and the authorized PLMN of the remote device.
  • processing unit 310 is specifically configured to:
  • the ProSe layer controlling the remote device determines at least one relay device in the one or more relay devices, and the serving PLMN of the at least one relay device belongs to the authorized PLMN of the remote device;
  • the ProSe layer controlling the remote device determines a PLMN belonging to an authorized PLMN of the remote device in the cell PLMN of the at least one relay device as the at least one PLMN.
  • the processing unit 310 is further configured to control the ProSe layer of the remote device to determine the at least one PLMN according to the serving PLMN of one or more relay devices and the authorized PLMN of the remote device.
  • processing unit 310 is specifically configured to:
  • the ProSe layer controlling the remote device determines at least one relay device in the one or more relay devices, and the serving PLMN of the at least one relay device belongs to the authorized PLMN of the remote device;
  • the ProSe layer controlling the remote device determines the serving PLMN of the at least one relay device as the at least one PLMN.
  • the processing unit 310 is further configured to control the ProSe layer of the remote device to obtain first information sent by the one or more relay devices respectively, where the first information includes the serving PLMN of the corresponding relay device.
  • the first information is discovery notification information or discovery response information.
  • the authorized PLMN of the remote device is indicated or configured by the policy control function PCF entity.
  • processing unit 310 is specifically configured to:
  • the ProSe layer controlling the remote device obtains the target PLMN from the NAS layer of the remote device;
  • the ProSe layer controlling the remote device selects a target relay device according to the target PLMN.
  • processing unit 310 is specifically configured to:
  • the ProSe layer controlling the remote device determines a first relay device of one or more relay devices as the target relay device, wherein the cell PLMN of the first relay device includes the target PLMN.
  • the processing unit 310 is further configured to control the ProSe layer of the remote device to respectively acquire second information sent by the one or more relay devices, where the second information includes the cell PLMN corresponding to the relay device.
  • the second information is system information SI.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the remote device 300 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the remote device 300 are respectively for the purpose of realizing the steps shown in FIG. 6 .
  • the corresponding process of the remote terminal in the method 200 is shown, and for brevity, it is not repeated here.
  • FIG. 10 is a schematic structural diagram of a communication device 400 provided by an embodiment of the present application.
  • the communication device 400 shown in FIG. 10 includes a processor 410, and the processor 410 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 400 may further include a memory 420 .
  • the processor 410 may call and run a computer program from the memory 420 to implement the methods in the embodiments of the present application.
  • the memory 420 may be a separate device independent of the processor 410 , or may be integrated in the processor 410 .
  • the communication device 400 may further include a transceiver 430, and the processor 410 may control the transceiver 430 to communicate with other devices, specifically, may send information or data to other devices, or receive other Information or data sent by a device.
  • the transceiver 430 may include a transmitter and a receiver.
  • the transceiver 430 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 400 may specifically be the remote terminal of the embodiments of the present application, and the communication device 400 may implement the corresponding processes implemented by the remote terminal in each method of the embodiments of the present application. Repeat.
  • FIG. 11 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
  • the apparatus 500 shown in FIG. 11 includes a processor 510, and the processor 510 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the apparatus 500 may further include a memory 520 .
  • the processor 510 may call and run a computer program from the memory 520 to implement the methods in the embodiments of the present application.
  • the memory 520 may be a separate device independent of the processor 510 , or may be integrated in the processor 510 .
  • the apparatus 500 may further include an input interface 530 .
  • the processor 510 may control the input interface 530 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
  • the apparatus 500 may further include an output interface 540 .
  • the processor 510 may control the output interface 540 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
  • the apparatus may be applied to the remote terminal in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the remote terminal in each method of the embodiments of the present application, which will not be repeated here for brevity.
  • the device mentioned in the embodiment of the present application may also be a chip.
  • it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 12 is a schematic block diagram of a communication system 600 provided by an embodiment of the present application. As shown in FIG. 12 , the communication system 600 includes a remote terminal 610 , a relay device 620 and a network device 630 .
  • the remote terminal 610 may be used to implement the corresponding functions implemented by the remote terminal in the foregoing method, and for brevity, details are not described herein again.
  • 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 foregoing method embodiment may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • 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 memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the remote terminal in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the remote terminal in each method of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the remote terminal in each method of the embodiments of the present application.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the remote terminal in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the remote terminal in each method of the embodiments of the present application. This will not be repeated here.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the remote terminal in the embodiments of the present application, and when the computer program runs on the computer, the computer is made to execute the corresponding processes implemented by the remote terminal in each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)

Abstract

本申请实施例提供了一种中继通信的方法及设备，远端终端可以基于选择的PLMN选择中继设备，能够实现仅具有中继协议的不同PLMN才能相互中继业务，从而优化中继通信。该中继通信的方法包括：远端设备选择目标PLMN；该远端设备根据该目标PLMN选择目标中继设备。

Description

中继通信的方法及设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及一种中继通信的方法及设备。
背景技术
在新空口(New Radio，NR)系统中，远端终端(remote UE)可以通过PC5接口与中继终端(relay UE)建立直接连接，并通过中继终端连接网络。此外，在中继通信中，远端终端需要选择公共陆地移动网络(Public Land Mobile Network，PLMN)和中继终端，以建立与网络之间的通信连接。然而，远端终端如何选择PLMN和中继终端，是一个亟待解决的问题。
发明内容
本申请实施例提供了一种中继通信的方法及设备，远端终端可以基于选择的PLMN选择中继设备，能够实现仅具有中继协议的不同PLMN才能相互中继业务，从而优化中继通信。
第一方面，提供了一种中继通信的方法，该方法包括：
远端设备选择目标PLMN；
该远端设备根据该目标PLMN选择目标中继设备。
第二方面，提供了一种远端设备，用于执行上述第一方面中的方法。
具体地，该远端设备包括用于执行上述第一方面中的方法的功能模块。
第三方面，提供了一种远端设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第一方面中的方法。
第四方面，提供了一种装置，用于实现上述第一方面中的方法。
具体地，该装置包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该装置的设备执行如上述第一方面中的方法。
第五方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面中的方法。
第六方面，提供了一种计算机程序产品，包括计算机程序指令，所述计算机程序指令使得计算机执行上述第一方面中的方法。
第七方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面中的方法。
通过上述技术方案，远端终端可以基于选择的目标PLMN选择目标中继设备，能够实现仅具有中继协议的不同PLMN才能相互中继业务，从而优化中继通信。
附图说明
图1是本申请实施例应用的一种通信系统架构的示意性图。
图2是本申请提供的一种中继网络架构的示意性图。
图3是本申请提供的一种用户平面传输协议栈的示意性图。
图4是本申请提供的另一种用户平面传输协议栈的示意性图。
图5是本申请提供的一种远端终端和中继终端来自不同的PLMN的示意性图。
图6是根据本申请实施例提供的一种中继通信的方法的示意性流程图。
图7是根据本申请实施例提供的一种选择目标PLMN和目标中继设备的示意性流程图。
图8是根据本申请实施例提供的另一种选择目标PLMN和目标中继设备的示意性流程图。
图9是根据本申请实施例提供的一种远端设备的示意性框图。
图10是根据本申请实施例提供的一种通信设备的示意性框图。
图11是根据本申请实施例提供的一种装置的示意性框图。
图12是根据本申请实施例提供的一种通信系统的示意性框图。
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。针对本申请中的实施例，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。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多 址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新空口(New Radio，NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum，NR-U)系统、非地面通信网络(Non-Terrestrial Networks，NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、第五代通信(5th-Generation，5G)系统或其他通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，车辆间(Vehicle to Vehicle，V2V)通信，或车联网(Vehicle to everything，V2X)通信等，本申请实施例也可以应用于这些通信系统。
可选地，本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation，CA)场景，也可以应用于双连接(Dual Connectivity，DC)场景，还可以应用于独立(Standalone，SA)布网场景。
可选地，本申请实施例中的通信系统可以应用于非授权频谱，其中，非授权频谱也可以认为是共享频谱；或者，本申请实施例中的通信系统也可以应用于授权频谱，其中，授权频谱也可以认为是非共享频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例，其中，终端设备也可以称为用户设备(User Equipment，UE)、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、无线通信设备、用户代理或用户装置等。
终端设备可以是WLAN中的站点(STATION，ST)，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)设备、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、下一代通信系统例如NR网络中的终端设备，或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的终端设备等。
在本申请实施例中，终端设备可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中，终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端设备、增强现实(Augmented Reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定，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。
在本申请实施例中，网络设备可以是用于与移动设备通信的设备，网络设备可以是WLAN中的接入点(Access Point，AP)，GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA中的基站(NodeB，NB)，还可以是LTE中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者车载设备、可穿戴设备以及NR网络中的基站(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定，在本申请实施例中，网络设备可以具有移动特性，例如网络设备可以为移动的设备。可选地，网络设备可以为卫星、气球站。例如，卫星可以为低地球轨道(low earth orbit，LEO)卫星、中地球轨道(medium earth orbit，MEO)卫星、地球同步轨道(geostationary earth orbit，GEO)卫星、高椭圆轨道(High Elliptical Orbit，HEO)卫星等。可选地，网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中，网络设备可以为小区提供服务，终端设备通过该小区使用的传输资源(例如， 频域资源，或者说，频谱资源)与网络设备进行通信，该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(Small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
示例性的，本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110，网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。
图1示例性地示出了一个网络设备和两个终端设备，可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端设备120，网络设备110和终端设备120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。
应理解，在本申请的实施例中提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。
在本申请实施例的描述中，术语“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。
在NR系统中，具有临近业务(Proximity-based Services，ProSe)能力的终端设备可以通过PC5接口与具有ProSe能力的另外一个终端设备直接通信。当一个终端设备既可以通过第五代移动通信(The 5th Generation，5G)网络连接外部数据网络，还具有ProSe能力时，这个终端设备可以充当中继终端(relay UE)，另外一个具有ProSe能力的远端终端(remote UE)可以通过PC5接口与中继终端建立直接连接，并通过中继终端与5G网络建立的协议数据单元(Protocol Data Unit，PDU)会话与外部网络交互，其系统架构可以如图2所示。在如图2中，远端终端通过PC5接口连接到中继终端，以及中继终端通过Uu接口连接下一代演进型无线接入网(Next Generation Evolutional Radio Access Network，NG-RAN)，从而连接5G核心网(5G Core Network，5GC)，5GC通过N6接口连接到应用服务器(application server，AS)。
需要说明的是，图2是以5G通信系统为例进行说明，当然，也可以适用于其他3GPP通信系统，例如4G通信系统，或者未来的3GPP通信系统，本申请对此并不限定。另外，在本申请实施例中，图2中的应用服务器(AS)也可以是其他的终端设备或者外部公共安全互联网。
在NR系统中，引入了基于层2的终端至网络(UE-to-Network)中继，该UE-to-Network中继可以直接连接网络，远端终端通过端到端分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层的中继设备连接到接入网(Access Network，AN)和核心网(Core Network，CN)。图3示出了与PDU会话相关的用户平面传输协议栈，具体涉及层2中远端终端与UE-to-Network中继。PDU层对应于通过PDU会话在远端终端和数据网络(DN)之间携带的PDU。需要注意的是，PDCP链路的两个端点是远端终端和gNB。中继功能在PDCP下执行。这意味着，在不向UE-to-Network中继暴露远端终端处的原始数据的情况下，确保远端终端和gNB之间的数据安全。如图3所示，远端终端具体可以包括以下层：应用程序(application，APP)、PDU、Uu-服务数据适应协议(Service Data Adaptation Protocol，SDAP)、Uu-PDCP、PC5-无线链路控制(Radio Link Control，RLC)、PC5-媒体接入控制(Media Access Control，MAC)、PC5-物理(Physics，PHY)。UE-to-Network中继具体可以包括以下层：适配(Adaptation)、PC5-RLC、PC5-MAC、PC5-PHY、Uu-RLC、Uu-MAC、Uu-PHY。gNB具体可以包括以下层：Uu-SDAP、Uu-PDCP、适配(Adaptation)、Uu-RLC、Uu-MAC、Uu-PHY、 GPRS用户平面隧道协议(GPRS Tunneling Protocol for User Plane，GTP-U)、用户数据报协议(User Datagram Protocol，UDP)、互联网协议(Internet Protocol，IP)、层2(L2)、层1(L1)。远端终端的用户面功能(User Plane Function，UPF)实体具体可以包括以下层：PDU层、GTP-U、UDP、IP、L2、L1。
需要说明的是，在上述图3中，UE-to-Network中继和gNB中的适配层可以区分特定远端终端的信令无线承载(Signaling Radio Bearers，SRB)和数据无线承载(Data Radio Bearer，DRB)。适配层还负责将PC5业务映射到Uu的一个或多个DRB。
图4示出了远端终端到非接入层移动管理(Non-Access Stratum Mobile management，NAS-MM)和非接入层会话管理(Non-Access Stratum session management，NAS-SM)组件的非接入层(Non-Access Stratum，NAS)连接的协议栈。NAS消息通过层2的UE-to-Network中继在远端终端和gNB之间透明地传输。PDCP端到端连接，其中UE-to-Network中继的作用是通过信令无线承载中继PDU，而无需任何修改。gNB和接入与移动性管理功能(Access and Mobility Management Function，AMF)实体之间通过N2接口连接。通过N11接口连接AMF实体和会话管理功能(Session Management Function，SMF)实体。UE-to-Network中继的作用是不经任何修改就从信令无线承载中继PDU。
为了使超出覆盖范围的(远端)终端获得到网络的连接，重要的是允许该终端通过(预)配置来发现潜在的UE-to-network中继终端，通过该中继终端可以访问5G网络。这样做用于UE-to-network中继终端发现和用于通过NR PC5进行通信的参数可以如下所示提供给远端终端：
预配置在移动设备(Pre-configured in the ME)和/或配置在通用集成电路卡(Universal Integrated Circuit Card，UICC)中；
由策略控制功能(Policy Control function，PCF)实体提供或更新到服务PLMN中的终端设备。
归属地公共陆地移动网络(Home Public Land Mobile Network，HPLMN)PCF实体应该能够在每个PLMN的基础上为终端设备提供作为远端终端或UE到UE-to-Network中继终端的操作的授权。服务的PLMN也应能够提供/撤销此类授权，在这种情况下，它应覆盖HPLMN提供的任何相应信息。
在部署无线接入网(Radio Access Network，RAN)共享时，远端终端和中继终端来自不同的PLMN，如下图5所示，远端终端来自PLMN1，中继终端来自PLMN2。为了实现层2中继，UE-to-Network中继终端需要发起业务请求过程，并在Uu接口上建立中继承载。这将消耗中继的CN资源和潜在的资源(资源应确认为RAN2)。中继终端可以根据PLMN间的协议确定是否可以转发远程通信量。
同时，对于基于层2的中继设备，远端终端-NAS层将依然执行PLMN选择，并且对于PLMN选择的候选PLMN应该被授权执行基于层2的UE-to-Network中继终端。
此外，在中继选择和PLMN选择之间存在交叉问题。
在通过Uu接口的正常PLMN中，终端设备应根据其能力扫描频带中的所有射频(RF)信道，以找到可用的PLMN。终端设备读取其系统信息，以找出该小区属于哪个PLMN。然后NAS层进行PLMN选择，接入层(Access Stratum，AS)层对所选PLMN进行小区选择。
当引入基于层2的中继时，如果发现的候选中继的服务PLMN没有被授权给PLMN进行中继，则远端终端将不会将该PLMN和候补中继所在小区支持的其他PLMN视为可用PLMN以供PLMN选择。这意味着，只有授权用于中继的PLMN才会被考虑用于PLMN选择。
基于上述问题，本申请提出了一种中继通信的方案，远端终端可以基于PLMN选择中继终端，从而提升中继终端和PLMN选择准确性。
以下通过具体实施例详述本申请的技术方案。
图6是根据本申请实施例的中继通信的方法200的示意性流程图，如图6所示，该方法200可以包括如下内容中的至少部分内容：
S210，远端设备选择目标PLMN；
S220，该远端设备根据该目标PLMN选择目标中继设备。
在本申请实施例中，该远端设备可以是远端终端(remote UE)，该目标中继设备可以是中继终端(relay UE)，该远端设备与该目标中继设备之间可以通过PC5接口通信。
可选地，该目标中继设备可以直接连接网络，即该目标中继设备可以是终端至网络(UE-to-Network)中继设备。
可选地，该远端设备可以通过该目标PLMN实现与该目标中继设备的中继通信。
可选地，在本申请实施例中，上述S210可以是由该远端设备的NAS层执行，具体可以是：该远端设备的NAS层选择该目标PLMN。以及，上述S220可以是由该远端设备的临近业务(Proximity-based Services，ProSe)层执行，具体可以是：该远端设备的ProSe层根据该远端设备的NAS层所选择的该目标PLMN，选择该目标中继设备。
可选地，在一些实施例中，上述S210具体可以是：
该远端设备的NAS层从该远端设备的ProSe层获取可供选择的至少一个PLMN，以及该远端设备的NAS层从该至少一个PLMN中选择该目标PLMN。
例如，该远端设备的ProSe层在得到可供选择的至少一个PLMN之后，主动将该至少一个PLMN提供给该远端设备的NAS层。
又例如，该远端设备的ProSe层在得到可供选择的至少一个PLMN之后，基于该远端设备的NAS层的请求，将该至少一个PLMN提供给该远端设备的NAS层。
需要说明的是，若远端设备的ProSe层未确定出可供选择的PLMN，则远端设备的ProSe层不会向远端设备的NAS层提供PLMN，也即远端设备的NAS层无法选出目标PLMN。
可选地，进一步的，该远端设备的ProSe层可以通过如下示例1或者示例2确定该至少一个PLMN。
示例1，该远端设备的ProSe层根据一个或多个中继设备的服务PLMN、该一个或多个中继设备的小区PLMN、该远端设备的授权PLMN，确定该至少一个PLMN。
具体地，在示例1中，该远端设备的ProSe层确定该一个或多个中继设备中的至少一个中继设备，该至少一个中继设备的服务PLMN属于该远端设备的授权PLMN；以及该远端设备的ProSe层将该至少一个中继设备的小区PLMN中属于该远端设备的授权PLMN的PLMN，确定为该至少一个PLMN。
可选地，在示例1中，该远端设备的授权PLMN为PCF实体指示或者配置的。例如，远端设备接收PCF实体发送的授权PLMN信息，该授权PLMN信息用于指示该远端设备的授权PLMN。此外，该授权PLMN信息所指示的PLMN中可以包括一个或者多个中继PLMN。或者，该授权PLMN信息所指示的PLMN中可以包括一个或者多个具有中继协议的PLMN。
例如，PCF实体通过授权PLMN信息指示：PLMN1,2,3,4,5,7,8授权用于中继，而PLMN6未授权用于中继。
可选地，在示例1中，该远端设备的ProSe层分别获取该一个或多个中继设备发送的第一信息，该第一信息包括对应中继设备的服务PLMN。
可选地，该第一信息为发现通知信息或者发现响应信息。
也即，该远端设备可以在发现中继设备的过程中获取对应中继设备的服务PLMN。
例如，远端设备接收中继设备1发送的发现通知信息1，该发现通知信息1中包括中继设备1的服务PLMN1；远端设备接收中继设备2发送的发现通知信息2，该发现通知信息2中包括中继设备2的服务PLMN2。
可选地，在示例1中，该远端设备的ProSe层分别获取该一个或多个中继设备发送的第二信息，该第二信息包括对应中继设备的小区PLMN。
可选地，该第二信息可以是系统信息(System Information，SI)。
也即，该远端设备可以在中继设备转发的小区SI中获取对应中继设备的小区PLMN。
例如，中继设备1从其小区的系统信息中获取SI，该SI中包括该中继设备1的小区PLMN，该中继设备1将该SI转发给该远端设备，从而该远端设备获取该中继设备1的小区PLMN。
示例2，该远端设备的ProSe层根据一个或多个中继设备的服务PLMN、该远端设备的授权PLMN，确定该至少一个PLMN。
具体地，在示例2中，该远端设备的ProSe层确定该一个或多个中继设备中的至少一个中继设备，该至少一个中继设备的服务PLMN属于该远端设备的授权PLMN；以及该远端设备的ProSe层将该至少一个中继设备的服务PLMN，确定为该至少一个PLMN。
可选地，在示例2中，该远端设备的授权PLMN为PCF实体指示或者配置的。例如，远端设备接收PCF实体发送的授权PLMN信息，该授权PLMN信息用于指示该远端设备的授权PLMN。此外，该授权PLMN信息所指示的PLMN中可以包括一个或者多个中继PLMN。或者，该授权PLMN信息所指示的PLMN中可以包括一个或者多个具有中继协议的PLMN。
例如，PCF实体通过授权PLMN信息指示：PLMN1,2,3,4,5,7,8授权用于中继，而PLMN6未授权用于中继。
可选地，在示例2中，该远端设备的ProSe层分别获取该一个或多个中继设备发送的第一信息，该第一信息包括对应中继设备的服务PLMN。
可选地，该第一信息为发现通知信息或者发现响应信息。
也即，该远端设备可以在发现中继设备的过程中获取对应中继设备的服务PLMN。
例如，远端设备接收中继设备1发送的发现通知信息1，该发现通知信息1中包括中继设备1的服务PLMN1；远端设备接收中继设备2发送的发现通知信息2，该发现通知信息2中包括中继设备2的服务PLMN2。
需要说明的是，在上述示例1和示例2中，该一个或多个中继设备为该远端设备通过模式(Model)A或者Model B发现的中继设备。在Model A中，该远端设备基于所接收到的中继设备发送的发现通知信息，来发现中继设备；在Model B中，该远端设备发送发现信息，中继设备接收到该发现信息之后向该远端设备反馈发现响应信息，以及该远端设备可以基于所接收到的发现响应信息，来发现中继设备。也就是说，在上述示例1和示例2中，该第一信息可以是Model A中的发现通知信息，该第一信息也可以是Model B中的发现响应信息。
可选地，在一些实施例中，上述S220具体可以是：
该远端设备的ProSe层从该远端设备的NAS层获取该目标PLMN；以及该远端设备的ProSe层根据该目标PLMN选择目标中继设备。
例如，该远端设备的NAS层在选择该目标PLMN之后，主动将该目标PLMN提供给该远端设备的ProSe层。
又例如，该远端设备的NAS层在选择该目标PLMN之后，基于该远端设备的ProSe层的请求，将该目标PLMN提供给该远端设备的ProSe层。
进一步的，上述S220具体可以是：
该远端设备的ProSe层将一个或多个中继设备的第一中继设备确定为该目标中继设备，其中，该第一中继设备的小区PLMN中包括该目标PLMN。
可选地，该远端设备的ProSe层分别获取该一个或多个中继设备发送的第二信息，该第二信息包括对应中继设备的小区PLMN。
可选地，该第二信息可以是系统信息(System Information，SI)。
也即，该远端设备可以在中继设备转发的小区SI中获取对应中继设备的小区PLMN。
因此，在本申请实施例中，远端终端可以基于选择的目标PLMN选择目标中继设备，能够实现仅具有中继协议的不同PLMN才能相互中继业务，从而优化中继通信。
以下通过实施例1和实施例2详述本申请所述的中继通信方法200。
实施例1，如图7所示，远端终端可以通过步骤11至17选择目标PLMN和目标中继设备，该远端终端可以基于该目标PLMN实现与该目标中继设备的中继通信，此外，该目标中继设备直接连接网络设备，即该目标中继设备可以是终端至网络(UE-to-Network)中继设备。需要说明的是，远端终端在执行步骤11之前，已经通过Model A或者Model B发现了的中继设备1、中继设备2和中继设备3，并获知中继设备1的服务PLMN为PLMN 1，中继设备2的服务PLMN为PLMN 6，中继设备3的服务PLMN为PLMN 5。此外，远端终端被PCF实体授权的PLMN包括PLMN 1,2,3,4,5,7,8，即PLMN 1,2,3,4,5,7,8可以用于中继，而PLMN 6不能用于中继。
实施例1的具体流程如下：
11.远端终端的无线资源控制(Radio Resource Control，RRC)层分别接收中继设备1发送的SI信息1，中继设备2发送的SI信息2，中继设备3发送的SI信息3。
其中，SI信息1包括PLMN 1,2,3,4，即PLMN 1,2,3,4为中继设备1的小区PLMN；SI信息2包括PLMN 5,6,7,8，即PLMN 5,6,7,8为中继设备2的小区PLMN；SI信息3包括PLMN 3,4,5,6，即PLMN 3,4,5,6为中继设备3的小区PLMN。
在实施例1中，具体的PLMN信息可以如表1所示。
表1
中继设备 服务PLMN 小区PLMN
中继设备1 PLMN 1 PLMN 1,2,3,4
中继设备2 PLMN 6 PLMN 5,6,7,8
中继设备3 PLMN 5 PLMN 3,4,5,6
12.远端终端的RRC层将所接收的SI信息1、SI信息2和SI信息3转发给远端终端的ProSe层。
13.远端终端的ProSe层确定可供选择的PLMN。
首先，远端终端的ProSe层检查每个中继设备的PLMN信息，中继设备1的服务PLMN(PLMN1)为被授权的PLMN，中继设备2的服务PLMN(PLMN 6)为未被授权的PLMN，中继设备3的服务PLMN(PLMN 5)为被授权的PLMN，并从3个中继设备中选出中继设备1和中继设备3(由于中继设备1和中继设备3的服务PLMN为被授权的PLMN)；然后，在中继设备1的小区PLMN中选出被授权的PLMN，即PLMN 1,2,3,4，以及在中继设备3的小区PLMN中选出被授权的PLMN，即PLMN 3,4,5；最后，远端终端的ProSe层将PLMN 1,2,3,4,5作为可供选择的PLMN。
14.远端终端的ProSe层将PLMN 1,2,3,4,5作为可供选择的PLMN提供给远端终端的NAS层。
15.远端终端的NAS层从PLMN 1,2,3,4,5中选择PLMN 2作为目标PLMN。
16.远端终端的NAS层将PLMN 2作为目标PLMN提供给远端终端的ProSe层。
17.远端终端的ProSe层根据PLMN 2确定中继设备1为目标中继设备(由于中继设备1的小区PLMN中包括PLMN 2)。
实施例2，如图8所示，远端终端可以通过步骤21至25选择目标PLMN和目标中继设备，该远端终端可以基于该目标PLMN实现与该目标中继设备的中继通信，此外，该目标中继设备直接连接网络设备，即该目标中继设备可以是终端至网络(UE-to-Network)中继设备。需要说明的是，远端终端在执行步骤21之前，已经通过Model A或者Model B发现了的中继设备1、中继设备2和中继设备3，并获知中继设备1的服务PLMN为PLMN 1，中继设备2的服务PLMN为PLMN 6，中继设备3的服务PLMN为PLMN 5。此外，远端终端被PCF实体授权的PLMN包括PLMN 1,2,3,4,5,7,8，即PLMN 1,2,3,4,5,7,8可以用于中继，而PLMN 6不能用于中继。
实施例2的具体流程如下：
在实施例2中，具体的PLMN信息可以如表2所示。
表2
中继设备 服务PLMN
中继设备1 PLMN 1
中继设备2 PLMN 6
中继设备3 PLMN 5
21.远端终端的ProSe层确定可供选择的PLMN。
首先，远端终端的ProSe层检查每个中继设备的PLMN信息，中继设备1的服务PLMN(PLMN 1)为被授权的PLMN，中继设备2的服务PLMN(PLMN 6)为未被授权的PLMN，中继设备3的服务PLMN(PLMN 5)为被授权的PLMN，并从3个中继设备中选出中继设备1和中继设备3(由于中继设备1和中继设备3的服务PLMN为被授权的PLMN)；然后，远端终端的ProSe层将PLMN 1和PLMN 5作为可供选择的PLMN。
22.远端终端的ProSe层将PLMN 1和PLMN 5作为可供选择的PLMN提供给远端终端的NAS层。
23.远端终端的NAS层从PLMN 1和PLMN 5中选择PLMN 5作为目标PLMN。
24.远端终端的NAS层将PLMN 5作为目标PLMN提供给远端终端的ProSe层。
25.远端终端的ProSe层根据PLMN 5确定中继设备2为目标中继设备(由于中继设备2的小区PLMN中包括PLMN 5)。
需要说明的是，远端终端的RRC层可以分别接收中继设备1发送的SI信息1，中继设备2发送的SI信息2，中继设备3发送的SI信息3。其中，SI信息1包括PLMN 1,2,3,4，即PLMN 1,2,3,4为中继设备1的小区PLMN；SI信息2包括PLMN 5,6,7,8，即PLMN 5,6,7,8为中继设备2的小区PLMN；SI信息3包括PLMN 3,4,5,6，即PLMN 3,4,5,6为中继设备3的小区PLMN。
上文结合图6至图8，详细描述了本申请的方法实施例，下文结合图9至图12，详细描述本申请的装置实施例，应理解，装置实施例与方法实施例相互对应，类似的描述可以参照方法实施例。
图9示出了根据本申请实施例的远端设备300的示意性框图。如图9所示，该远端设备300包括：
处理单元310，用于选择目标公共陆地移动网络PLMN；
该处理单元310，还用于根据该目标PLMN选择目标中继设备。
可选地，该处理单元310具体用于：
控制该远端设备的非接入层NAS层从该远端设备的临近业务ProSe层获取可供选择的至少一个PLMN，以及控制该远端设备的NAS层从该至少一个PLMN中选择该目标PLMN。
可选地，该处理单元310还用于：
控制该远端设备的ProSe层根据一个或多个中继设备的服务PLMN、该一个或多个中继设备的小区PLMN、该远端设备的授权PLMN，确定该至少一个PLMN。
可选地，该处理单元310具体用于：
控制该远端设备的ProSe层确定该一个或多个中继设备中的至少一个中继设备，该至少一个中继设备的服务PLMN属于该远端设备的授权PLMN；
控制该远端设备的ProSe层将该至少一个中继设备的小区PLMN中属于该远端设备的授权PLMN的PLMN，确定为该至少一个PLMN。
可选地，该处理单元310还用于控制该远端设备的ProSe层根据一个或多个中继设备的服务 PLMN、该远端设备的授权PLMN，确定该至少一个PLMN。
可选地，该处理单元310具体用于：
控制该远端设备的ProSe层确定该一个或多个中继设备中的至少一个中继设备，该至少一个中继设备的服务PLMN属于该远端设备的授权PLMN；
控制该远端设备的ProSe层将该至少一个中继设备的服务PLMN，确定为该至少一个PLMN。
可选地，该处理单元310还用于控制该远端设备的ProSe层分别获取该一个或多个中继设备发送的第一信息，该第一信息包括对应中继设备的服务PLMN。
可选地，该第一信息为发现通知信息或者发现响应信息。
可选地，该远端设备的授权PLMN为策略控制功能PCF实体指示或者配置的。
可选地，该处理单元310具体用于：
控制该远端设备的ProSe层从该远端设备的NAS层获取该目标PLMN；
控制该远端设备的ProSe层根据该目标PLMN选择目标中继设备。
可选地，该处理单元310具体用于：
控制该远端设备的ProSe层将一个或多个中继设备的第一中继设备确定为该目标中继设备，其中，该第一中继设备的小区PLMN中包括该目标PLMN。
可选地，该处理单元310还用于控制该远端设备的ProSe层分别获取该一个或多个中继设备发送的第二信息，该第二信息包括对应中继设备的小区PLMN。
可选地，该第二信息为系统信息SI。
可选地，在一些实施例中，上述通信单元可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解，根据本申请实施例的远端设备300可对应于本申请方法实施例中的终端设备，并且远端设备300中的各个单元的上述和其它操作和/或功能分别为了实现图6所示方法200中远端终端的相应流程，为了简洁，在此不再赘述。
图10是本申请实施例提供的一种通信设备400示意性结构图。图10所示的通信设备400包括处理器410，处理器410可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图10所示，通信设备400还可以包括存储器420。其中，处理器410可以从存储器420中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器420可以是独立于处理器410的一个单独的器件，也可以集成在处理器410中。
可选地，如图10所示，通信设备400还可以包括收发器430，处理器410可以控制该收发器430与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器430可以包括发射机和接收机。收发器430还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备400具体可为本申请实施例的远端终端，并且该通信设备400可以实现本申请实施例的各个方法中由远端终端实现的相应流程，为了简洁，在此不再赘述。
图11是本申请实施例的装置的示意性结构图。图11所示的装置500包括处理器510，处理器510可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图11所示，装置500还可以包括存储器520。其中，处理器510可以从存储器520中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器520可以是独立于处理器510的一个单独的器件，也可以集成在处理器510中。
可选地，该装置500还可以包括输入接口530。其中，处理器510可以控制该输入接口530与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该装置500还可以包括输出接口540。其中，处理器510可以控制该输出接口540与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该装置可应用于本申请实施例中的远端终端，并且该装置可以实现本申请实施例的各个方法中由远端终端实现的相应流程，为了简洁，在此不再赘述。
可选地，本申请实施例提到的装置也可以是芯片。例如可以是系统级芯片，系统芯片，芯片系统或片上系统芯片等。
图12是本申请实施例提供的一种通信系统600的示意性框图。如图12所示，该通信系统600包括远端终端610、中继设备620和网络设备630。
其中，该远端终端610可以用于实现上述方法中由远端终端实现的相应的功能，为了简洁，在此不再赘述。
应理解，本申请实施例的处理器可能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(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，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。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。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。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
可选的，该计算机可读存储介质可应用于本申请实施例中的远端终端，并且该计算机程序使得计算机执行本申请实施例的各个方法中由远端终端实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。
可选的，该计算机程序产品可应用于本申请实施例中的远端终端，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由远端终端实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的，该计算机程序可应用于本申请实施例中的远端终端，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由远端终端实现的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，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，例如多个单元或组件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，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。针对这样的理解，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或者该技术方案的部分可以以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中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (31)

  1. 一种中继通信的方法，其特征在于，包括：
    远端设备选择目标公共陆地移动网络PLMN；
    所述远端设备根据所述目标PLMN选择目标中继设备。
  2. 如权利要求1所述的方法，其特征在于，所述远端设备选择目标PLMN，包括：
    所述远端设备的非接入层NAS层从所述远端设备的临近业务ProSe层获取可供选择的至少一个PLMN，以及所述远端设备的NAS层从所述至少一个PLMN中选择所述目标PLMN。
  3. 如权利要求2所述的方法，其特征在于，所述方法还包括：
    所述远端设备的ProSe层根据一个或多个中继设备的服务PLMN、所述一个或多个中继设备的小区PLMN、所述远端设备的授权PLMN，确定所述至少一个PLMN。
  4. 如权利要求3所述的方法，其特征在于，所述远端设备的ProSe层根据一个或多个中继设备的服务PLMN、所述一个或多个中继设备的小区PLMN、所述远端设备的授权PLMN，确定所述至少一个PLMN，包括：
    所述远端设备的ProSe层确定所述一个或多个中继设备中的至少一个中继设备，所述至少一个中继设备的服务PLMN属于所述远端设备的授权PLMN；
    所述远端设备的ProSe层将所述至少一个中继设备的小区PLMN中属于所述远端设备的授权PLMN的PLMN，确定为所述至少一个PLMN。
  5. 如权利要求2所述的方法，其特征在于，所述方法还包括：
    所述远端设备的ProSe层根据一个或多个中继设备的服务PLMN、所述远端设备的授权PLMN，确定所述至少一个PLMN。
  6. 如权利要求5所述的方法，其特征在于，所述远端设备的ProSe层根据一个或多个中继设备的服务PLMN、所述远端设备的授权PLMN，确定所述至少一个PLMN，包括：
    所述远端设备的ProSe层确定所述一个或多个中继设备中的至少一个中继设备，所述至少一个中继设备的服务PLMN属于所述远端设备的授权PLMN；
    所述远端设备的ProSe层将所述至少一个中继设备的服务PLMN，确定为所述至少一个PLMN。
  7. 如权利要求3至6中任一项所述的方法，其特征在于，所述方法还包括：
    所述远端设备的ProSe层分别获取所述一个或多个中继设备发送的第一信息，所述第一信息包括对应中继设备的服务PLMN。
  8. 如权利要求7所述的方法，其特征在于，所述第一信息为发现通知信息或者发现响应信息。
  9. 如权利要求3至8中任一项所述的方法，其特征在于，所述远端设备的授权PLMN为策略控制功能PCF实体指示或者配置的。
  10. 如权利要求2至9中任一项所述的方法，其特征在于，所述远端设备根据所述目标PLMN选择目标中继设备，包括：
    所述远端设备的ProSe层从所述远端设备的NAS层获取所述目标PLMN；
    所述远端设备的ProSe层根据所述目标PLMN选择目标中继设备。
  11. 如权利要求10所述的方法，其特征在于，所述远端设备的ProSe层根据所述目标PLMN选择目标中继设备，包括：
    所述远端设备的ProSe层将一个或多个中继设备的第一中继设备确定为所述目标中继设备，其中，所述第一中继设备的小区PLMN中包括所述目标PLMN。
  12. 如权利要求3、4或11所述的方法，其特征在于，所述方法还包括：
    所述远端设备的ProSe层分别获取所述一个或多个中继设备发送的第二信息，所述第二信息包括对应中继设备的小区PLMN。
  13. 如权利要求12所述的方法，其特征在于，所述第二信息为系统信息SI。
  14. 一种远端设备，其特征在于，包括：
    处理单元，用于选择目标公共陆地移动网络PLMN；
    所述处理单元，还用于根据所述目标PLMN选择目标中继设备。
  15. 如权利要求14所述的远端设备，其特征在于，所述处理单元具体用于：
    控制所述远端设备的非接入层NAS层从所述远端设备的临近业务ProSe层获取可供选择的至少一个PLMN，以及控制所述远端设备的NAS层从所述至少一个PLMN中选择所述目标PLMN。
  16. 如权利要求15所述的远端设备，其特征在于，所述处理单元还用于：
    控制所述远端设备的ProSe层根据一个或多个中继设备的服务PLMN、所述一个或多个中继设备的小区PLMN、所述远端设备的授权PLMN，确定所述至少一个PLMN。
  17. 如权利要求16所述的远端设备，其特征在于，所述处理单元具体用于：
    控制所述远端设备的ProSe层确定所述一个或多个中继设备中的至少一个中继设备，所述至少一个中继设备的服务PLMN属于所述远端设备的授权PLMN；
    控制所述远端设备的ProSe层将所述至少一个中继设备的小区PLMN中属于所述远端设备的授权PLMN的PLMN，确定为所述至少一个PLMN。
  18. 如权利要求15所述的远端设备，其特征在于，所述处理单元还用于控制
    所述远端设备的ProSe层根据一个或多个中继设备的服务PLMN、所述远端设备的授权PLMN，确定所述至少一个PLMN。
  19. 如权利要求18所述的远端设备，其特征在于，所述处理单元具体用于：
    控制所述远端设备的ProSe层确定所述一个或多个中继设备中的至少一个中继设备，所述至少一个中继设备的服务PLMN属于所述远端设备的授权PLMN；
    控制所述远端设备的ProSe层将所述至少一个中继设备的服务PLMN，确定为所述至少一个PLMN。
  20. 如权利要求16至19中任一项所述的远端设备，其特征在于，所述处理单元还用于控制所述远端设备的ProSe层分别获取所述一个或多个中继设备发送的第一信息，所述第一信息包括对应中继设备的服务PLMN。
  21. 如权利要求20所述的远端设备，其特征在于，所述第一信息为发现通知信息或者发现响应信息。
  22. 如权利要求16至21中任一项所述的远端设备，其特征在于，所述远端设备的授权PLMN为策略控制功能PCF实体指示或者配置的。
  23. 如权利要求15至22中任一项所述的远端设备，其特征在于，所述处理单元具体用于：
    控制所述远端设备的ProSe层从所述远端设备的NAS层获取所述目标PLMN；
    控制所述远端设备的ProSe层根据所述目标PLMN选择目标中继设备。
  24. 如权利要求23所述的远端设备，其特征在于，所述处理单元具体用于：
    控制所述远端设备的ProSe层将一个或多个中继设备的第一中继设备确定为所述目标中继设备，其中，所述第一中继设备的小区PLMN中包括所述目标PLMN。
  25. 如权利要求16、17或24所述的远端设备，其特征在于，所述处理单元还用于控制所述远端设备的ProSe层分别获取所述一个或多个中继设备发送的第二信息，所述第二信息包括对应中继设备的小区PLMN。
  26. 如权利要求25所述的远端设备，其特征在于，所述第二信息为系统信息SI。
  27. 一种远端设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求1至13中任一项所述的方法。
  28. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至13中任一项所述的方法。
  29. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1至13中任一项所述的方法。
  30. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1至13中任一项所述的方法。
  31. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1至13中任一项所述的方法。
PCT/CN2020/109018 2020-08-13 2020-08-13 中继通信的方法及设备 WO2022032594A1 (zh)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BR112022025313A BR112022025313A2 (pt) 2020-08-13 2020-08-13 Método para comunicação de retransmissão e dispositivo remoto
EP20949092.9A EP4142370A4 (en) 2020-08-13 2020-08-13 RELAY COMMUNICATION METHOD AND DEVICE
KR1020237005467A KR20230049646A (ko) 2020-08-13 2020-08-13 중계 통신 방법 및 디바이스
PCT/CN2020/109018 WO2022032594A1 (zh) 2020-08-13 2020-08-13 中继通信的方法及设备
CN202310102555.6A CN116074920A (zh) 2020-08-13 2020-08-13 中继通信的方法及设备
CN202080099879.3A CN115398978A (zh) 2020-08-13 2020-08-13 中继通信的方法及设备
AU2020463022A AU2020463022A1 (en) 2020-08-13 2020-08-13 Relay communication method and device
JP2023508617A JP2023542468A (ja) 2020-08-13 2020-08-13 中継通信方法及びデバイス
US17/991,231 US20230090887A1 (en) 2020-08-13 2022-11-21 Relay communication method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/109018 WO2022032594A1 (zh) 2020-08-13 2020-08-13 中继通信的方法及设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/991,231 Continuation US20230090887A1 (en) 2020-08-13 2022-11-21 Relay communication method and device

Publications (1)

Publication Number Publication Date
WO2022032594A1 true WO2022032594A1 (zh) 2022-02-17

Family

ID=80246852

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/109018 WO2022032594A1 (zh) 2020-08-13 2020-08-13 中继通信的方法及设备

Country Status (8)

Country Link
US (1) US20230090887A1 (zh)
EP (1) EP4142370A4 (zh)
JP (1) JP2023542468A (zh)
KR (1) KR20230049646A (zh)
CN (2) CN115398978A (zh)
AU (1) AU2020463022A1 (zh)
BR (1) BR112022025313A2 (zh)
WO (1) WO2022032594A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105009610A (zh) * 2013-02-28 2015-10-28 Lg电子株式会社 提供邻近服务的组通信方法和装置
CN106572514A (zh) * 2015-10-09 2017-04-19 北京信威通信技术股份有限公司 一种d2d通信中选择中继ue的方法
WO2018174492A1 (ko) * 2017-03-20 2018-09-27 엘지전자 주식회사 무선 통신 시스템에서 리모트 ue의 서빙 mme를 선택하고 nas 메시지를 전송하는 방법 및 이를 위한 장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10530461B2 (en) * 2015-03-25 2020-01-07 Qualcomm Incorporated Relay discovery and association messages
WO2019031865A1 (ko) * 2017-08-09 2019-02-14 엘지전자 주식회사 무선 통신 시스템에서 rrc 연결 절차 수행 방법 및 이를 위한 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105009610A (zh) * 2013-02-28 2015-10-28 Lg电子株式会社 提供邻近服务的组通信方法和装置
CN106572514A (zh) * 2015-10-09 2017-04-19 北京信威通信技术股份有限公司 一种d2d通信中选择中继ue的方法
WO2018174492A1 (ko) * 2017-03-20 2018-09-27 엘지전자 주식회사 무선 통신 시스템에서 리모트 ue의 서빙 mme를 선택하고 nas 메시지를 전송하는 방법 및 이를 위한 장치

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
QUALCOMM INCORPORATED: "Additional considerations for Layer-2 UE-to-Network Relay solution", 3GPP DRAFT; S2-2004290, vol. SA WG2, 22 May 2020 (2020-05-22), pages 1 - 10, XP051890414 *

Also Published As

Publication number Publication date
CN115398978A (zh) 2022-11-25
KR20230049646A (ko) 2023-04-13
US20230090887A1 (en) 2023-03-23
CN116074920A (zh) 2023-05-05
EP4142370A1 (en) 2023-03-01
BR112022025313A2 (pt) 2023-01-03
AU2020463022A1 (en) 2023-01-05
JP2023542468A (ja) 2023-10-10
EP4142370A4 (en) 2023-05-24

Similar Documents

Publication Publication Date Title
WO2022095047A1 (zh) 无线通信的方法、终端设备和网络设备
EP4358638A1 (en) Relay method for slidelink, first electronic device, chip, and storage medium
WO2022160205A1 (zh) 一种数据传输方法、终端设备和网络设备
WO2022032594A1 (zh) 中继通信的方法及设备
WO2022082433A1 (zh) 位置注册的方法和终端设备
EP4152889A1 (en) Relay discovery method, and terminal
CN113794544B (zh) 无线通信方法和终端设备
WO2022174726A1 (zh) 无线通信的方法及终端设备
RU2810306C1 (ru) Способ и устройство ретрансляционной связи
WO2023216018A1 (zh) 中继通信的方法及设备
US11924893B2 (en) Method for establishing connection, and terminal device
WO2022151274A1 (zh) 寻呼方法和网络节点
WO2022160272A1 (zh) 无线通信的方法、终端设备和网络设备
WO2022027678A1 (zh) 数据传输方法和终端设备
WO2023070671A1 (zh) 受限服务的处理方法、终端设备和网络设备
WO2022141210A1 (zh) 无线通信的方法、终端设备和网络设备
WO2022193275A1 (zh) 无线通信的方法、终端设备和网络设备
WO2022094804A1 (zh) 无线通信的方法、终端设备和网络设备
US20240040369A1 (en) Transmission method, terminal device, network device, and communication system
WO2022217615A1 (zh) 进入连接态的方法和终端设备
WO2024026883A1 (zh) 无线通信的方法及设备
WO2024036579A1 (zh) 无线通信的方法及设备
WO2022067568A1 (zh) 中继方式确定方法和设备
WO2022198466A1 (zh) 发现方法和终端
WO2023184257A1 (zh) 无线通信的方法、网络设备和终端设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20949092

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020949092

Country of ref document: EP

Effective date: 20221124

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112022025313

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 112022025313

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20221212

ENP Entry into the national phase

Ref document number: 2020463022

Country of ref document: AU

Date of ref document: 20200813

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2023508617

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20237005467

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2022133050

Country of ref document: RU

NENP Non-entry into the national phase

Ref country code: DE