WO2021212374A1 - Procédé de relais et dispositif de communication - Google Patents

Procédé de relais et dispositif de communication Download PDF

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Publication number
WO2021212374A1
WO2021212374A1 PCT/CN2020/086186 CN2020086186W WO2021212374A1 WO 2021212374 A1 WO2021212374 A1 WO 2021212374A1 CN 2020086186 W CN2020086186 W CN 2020086186W WO 2021212374 A1 WO2021212374 A1 WO 2021212374A1
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WIPO (PCT)
Prior art keywords
information
relay
plmn
allowed
devices
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Application number
PCT/CN2020/086186
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English (en)
Chinese (zh)
Inventor
刘建华
卢前溪
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
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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 PCT/CN2020/086186 priority Critical patent/WO2021212374A1/fr
Priority to CN202080097531.0A priority patent/CN115152255A/zh
Publication of WO2021212374A1 publication Critical patent/WO2021212374A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management

Definitions

  • the present application relates to the field of communication, and more specifically, to a relay method and communication device.
  • NCIS Network Controlled Interactive Services
  • 5G next generation communication
  • AR Augmented Reality
  • VR Virtual Reality
  • service quality such as speed, delay, packet loss rate, and high-speed encoding and decoding.
  • speed, delay, packet loss rate For example: For VR games, it needs to reach a rate of 10Gbps, and the packet loss rate cannot exceed 10E-4.
  • the session established for the NCIS service is an NCIS session, and UEs in the same NCIS session can be considered to form an NCIS group, for example, a team in a game.
  • the communication modes of UEs in the NCIS group can include the following situations, and different communication modes can be used in combination:
  • D2D device to device
  • sidelink also known as using PC5 interface
  • NCIS service One implementation of the NCIS service is that the UE uses a relay to transmit data. Under the 5G network, it is not clear how the terminal selects the relay to access the network.
  • the embodiments of the present application provide a relay method and a communication device, which can enable the device to select a suitable relay to access the network.
  • An embodiment of the present application provides a relay method, including: a first device sends relay selection information, where the relay selection information is used to instruct a second device to select a relay based on the PLMN information of a land public mobile communication network.
  • An embodiment of the present application provides a relay method, including: a third device sends a relay authorization instruction.
  • An embodiment of the present application provides a relay method, including: a second device receives relay selection information, where the relay selection information is used to instruct the second device to select a relay based on the PLMN information of a land-based public mobile communication network; The second device selects a relay according to the PLMN information.
  • An embodiment of the present application provides a communication device, including: a processing unit, configured to send relay selection information, where the relay selection information is used to instruct a second device to select a relay based on the PLMN information of a land-based public mobile communication network.
  • An embodiment of the present application provides a communication device, including: a sending unit, configured to send a relay authorization instruction.
  • An embodiment of the present application provides a communication device, including: a receiving unit, configured to receive relay selection information, where the relay selection information is used to instruct a second device to select a relay based on the PLMN information of a land-based public mobile communication network; a selection unit , Used to select a relay according to the PLMN information.
  • the embodiment of the present application provides a communication 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 above-mentioned relay method.
  • the embodiment of the present application provides a chip for implementing the above-mentioned relay method.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes the above-mentioned relay method.
  • the embodiment of the present application provides a computer-readable storage medium for storing a computer program, and the computer program enables a computer to execute the above-mentioned relay method.
  • the embodiment of the present application provides a computer program product, including computer program instructions, and the computer program instructions cause a computer to execute the above-mentioned relay method.
  • the embodiment of the present application provides a computer program that, when running on a computer, causes the computer to execute the above-mentioned relay method.
  • the relay selection information can instruct other devices to select a relay according to the PLMN information, so that the device can access the network through a suitable relay.
  • Fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.
  • Fig. 2 is a schematic flowchart of a relay method according to an embodiment of the present application.
  • Fig. 3 is a schematic flowchart of a relay method according to another embodiment of the present application.
  • Fig. 4 is a schematic flowchart of a relay method according to another embodiment of the present application.
  • Figure 5 is an architecture diagram of a terminal-to-network relay.
  • FIGS 6 and 7 are schematic diagrams of the relay mode.
  • Fig. 8 is a schematic diagram of a PCF authorizing a relay terminal to use system information to indicate relay selection.
  • Fig. 9 is a schematic diagram of a PCF authorizing a relay terminal to use system information and a discovery message to indicate relay selection.
  • Figure 10 is a schematic diagram of the PCF authorizing a remote terminal to select a relay.
  • Fig. 11 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • Fig. 12 is a schematic block diagram of a communication device according to another embodiment of the present application.
  • Fig. 13 is a schematic block diagram of a communication device according to another embodiment of the present application.
  • Fig. 14 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • Fig. 15 is a schematic block diagram of a chip according to an embodiment of the present application.
  • Fig. 16 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • GSM Global System of Mobile Communication
  • CDMA 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
  • UMTS universal mobile telecommunication system
  • WLAN wireless Local Area Networks
  • 5G next-generation communications
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • the communication system in the embodiments of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) deployment.
  • CA Carrier Aggregation
  • DC dual connectivity
  • SA standalone
  • the embodiment of the application does not limit the applied frequency spectrum.
  • the embodiments of this application can be applied to licensed spectrum or unlicensed spectrum.
  • the embodiments of this application describe various embodiments in combination with network equipment and terminal equipment.
  • the terminal equipment may also be referred to as User Equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, and remote. Station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • UE User Equipment
  • access terminal subscriber unit, subscriber station, mobile station, mobile station, and 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 (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, and personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and next-generation communication systems, such as terminal devices in the NR network or Terminal equipment in the public land mobile network (PLMN) network that will evolve in the future.
  • STAION, ST station
  • WLAN Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design everyday wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • a network device can be a device used to communicate with a mobile device.
  • the network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, or a device in WCDMA.
  • a base station (NodeB, NB) can also be an Evolutional Node B (eNB or eNodeB) in LTE, or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in the NR network Or network equipment in the PLMN network that will evolve in the future.
  • AP access point
  • BTS base station
  • gNB network device
  • the network equipment provides services for the cell
  • the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell
  • the cell may be a network equipment (for example, The cell corresponding to the base station.
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: Metro cell, Micro cell, Pico Cells, Femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • Figure 1 exemplarily shows one network device 110 and two terminal devices 120.
  • the wireless communication system 100 may include multiple network devices 110, and the coverage of each network device 110 may include other numbers.
  • the terminal device 120 is not limited in this embodiment of the application.
  • the wireless communication system 100 may also include other network entities such as mobility management entities (Mobility Management Entity, MME), access and mobility management functions (Access and Mobility Management Function, AMF), etc. This is not limited.
  • MME Mobility Management Entity
  • AMF Access and Mobility Management Function
  • FIG. 2 is a schematic flowchart of a relay method 200 according to an embodiment of the present application. This method can optionally be applied to the system shown in FIG. 1, but is not limited to this. The method includes at least part of the following content.
  • the first device sends relay selection information, where the relay selection information is used to instruct the second device to select a relay according to public land mobile network (Public Land Mobile Network, PLMN) information.
  • PLMN Public Land Mobile Network
  • the terminals in the NCIS group may come from the same PLMN, or may come from different PLMNs.
  • there are 5 UEs in an NCIS group of which 3 are UEs of PLMN 1, and 2 are UEs of PLMN 2.
  • the UEs of the three PLMNs 1 can directly communicate with each other on the PC5 interface in D2D mode.
  • the UEs of the 3 PLMNs 1 can also communicate with the UEs of the 2 PLMNs 2 using the network.
  • the first device may be a relay terminal in the NCIS group, and the second device may be a remote terminal in the NCIS group.
  • the relay terminal can send relay selection information to one or more remote terminals.
  • the remote terminal that receives the relay selection information can determine whether to select the relay terminal as a relay to access the network according to the PLMN information in the relay selection information.
  • the method further includes: the first device receives a relay authorization instruction from the third device.
  • the relay authorization indication may instruct the first device to send authorization selection information to the second device.
  • the third device is a policy control network element (Policy Control Function, PCF).
  • Policy Control Function Policy Control Function
  • the PCF can communicate with the terminal and send policy rules to the terminal.
  • the PCF may send a relay authorization instruction to the terminal.
  • the relay authorization indication includes at least one of the following:
  • different PLMNs include at least one of the following:
  • the PLMN information allowed to be relayed can be regarded as a whitelist.
  • the PLMN information allowed to be relayed includes PLMN1 and PLMN2.
  • PLMN information that is not allowed to be relayed can be regarded as a blacklist.
  • PLMN information that is not allowed to be relayed includes PLMN3 and PLMN4.
  • the specific information allowed to relay data for devices of different PLMNs may include specific groups and/or specific services, which may be regarded as a whitelist.
  • specific groups G1 and G2 are allowed to relay data for devices of different PLMNs
  • specific groups S1 and S2 are allowed to relay data for devices of different PLMNs.
  • specific information that is not allowed to relay data for devices of different PLMNs may also include specific groups and/or specific services, which can be regarded as a blacklist.
  • specific groups G3 and G4 are not allowed to relay data for devices of different PLMNs
  • specific groups S3 and S4 are not allowed to relay data for devices of different PLMNs.
  • the method further includes: the first device receives the first system information from the fourth device.
  • the fourth device is a base station.
  • the fourth device is a base station in NG-RAN (Radio Access Network, radio access network).
  • NG-RAN Radio Access Network, radio access network
  • the relay selection information may include system information or discovery messages, which will be introduced separately below.
  • the relay selection information includes second system information forwarded by the first device.
  • the second system information includes at least one of the following:
  • the first device after the first device receives the first system information, it can determine the content of the second system information to be forwarded to the second device.
  • the first device may not modify the first system information, that is, the second system information may include all the information in the first system information. PLMN information.
  • the first device can delete the related information of the different PLMNs in the first system information, that is, in the second system information It may not include information about different PLMNs.
  • the first device belongs to PLMN1, and the related information of PLMNs different from PLMN1, such as PLMN2, PLMN3, etc., is deleted in the system information.
  • the second system information includes specific information that allows data to be relayed for devices of different PLMNs, such as specific groups G1, G2 , Specific services S1, S2, etc.
  • the second system information includes specific information that is not allowed to relay data for devices of different PLMNs, such as a specific group G3, G4, specific services S3, S4, etc.
  • the second system information includes PLMN information that allows relay, such as PLMN1 and PLMN2.
  • the relay authorization indication includes PLMN information that does not allow relay
  • the second system information does not include PLMN information that does not allow relay, such as PLMN3 and PLMN4.
  • the relay selection information includes a discovery message sent by the first device. After the first device receives the relay authorization instruction, it may not modify the system message, but send a discovery message to the second device. After the first device receives the relay authorization instruction, it can also modify the system message and send a discovery message to the second device.
  • the discovery message includes at least one of the following:
  • PLMN information of the first device is PLMN information of the first device.
  • the discovery message includes the PLMN information permitted to be relayed in the authorization indication information, such as PLMN1 and PLMN2.
  • the discovery message includes PLMN information that is not allowed to be relayed in the authorization indication information, such as PLMN3 and PLMN4.
  • the discovery message includes specific information that allows data to be relayed for devices of different PLMNs in the authorization indication information, such as specific groups G1, G2, specific services S1, S2, and so on.
  • the discovery message includes specific information in the authorization indication information that is not allowed to relay data for devices of different PLMNs, such as specific groups G3, G4, specific services S3, S4, and so on.
  • the discovery message includes the PLMN information of the first device, such as PLMN1.
  • the PLMN information of the first device includes the serving PLMN information of the first device, the registered land public mobile communication network (Registered PLMN, RPLMN) information, and the local land public mobile communication At least one of the Home PLMN (HPLMN) information.
  • the serving PLMN information of the first device includes the serving PLMN information of the first device, the registered land public mobile communication network (Registered PLMN, RPLMN) information, and the local land public mobile communication At least one of the Home PLMN (HPLMN) information.
  • the registered PLMN Registered PLMN, RPLMN
  • HPLMN Home PLMN
  • the relay selection information can instruct other devices to select a relay according to the PLMN information, so that the device can access the network through a suitable relay.
  • the relay terminal can instruct the remote terminal to select a suitable relay to access the network according to the PLMN information.
  • FIG. 3 is a schematic flowchart of a relay method 300 according to an embodiment of the present application. This method can optionally be applied to the system shown in FIG. 1, but is not limited to this. The method includes at least part of the following content.
  • the third device sends a relay authorization instruction.
  • the third device may send a relay authorization instruction to the first device, and the relay authorization instruction may instruct the first device to send authorization selection information to the second device. If the third device can send the relay authorization instruction to the first device, the first device can send authorization selection information, such as the second system information and/or the discovery message, to the remote device according to the relay authorization instruction.
  • the third device may also send a relay authorization instruction to the second device, and the relay authorization instruction may instruct the second device to select a relay to access the network according to the PLMN information. If the third device can send the relay authorization instruction to the second device, the first device can directly forward the received first system information and/or discovery message to the second device.
  • the third device is a policy control network element PCF.
  • the PCF can communicate with the terminal and send policy rules to the terminal.
  • the relay authorization instruction sent by the third device may include at least one of the following:
  • the PCF sends a relay authorization instruction to the first device, such as a relay terminal;
  • the PCF sends a relay authorization instruction to a second device, such as a remote terminal.
  • the relay authorization indication includes at least one of the following:
  • the specific information includes a specific group and/or a specific business.
  • the relay authorization instruction can instruct other devices to select a relay based on the PLMN information, so that the device can access the network through a suitable relay.
  • a network device such as a PCF can instruct the remote terminal to select a suitable relay to access the network based on the PLMN information through relay authorization.
  • FIG. 4 is a schematic flowchart of a relay method 400 according to an embodiment of the present application. This method can optionally be applied to the system shown in FIG. 1, but is not limited to this. The method includes at least part of the following content.
  • the second device receives relay selection information, where the relay selection information is used to instruct the second device to select a relay according to the PLMN information of the land public mobile communication network.
  • S420 The second device selects a relay according to the PLMN information.
  • the second device may receive relay selection information, such as second system information and/or discovery message, from the first device. Then, the second device may determine whether to select the first device as a relay to access the network according to the relay selection information and its own PLMN information.
  • relay selection information such as second system information and/or discovery message
  • the second device may also receive a relay authorization instruction from the network device. Then, the second device may determine whether to select the first device as a relay to access the network according to the relay authorization indication and the PLMN information of the first device.
  • the PLMN information of the first device may be sent to the second device through relay selection information, such as second system information and/or discovery message.
  • the relay selection information includes second system information from the first device, and the second system information includes at least one of the following:
  • the specific information includes a specific group and/or a specific business.
  • different PLMNs include at least one of the following:
  • the way of selecting the relay may also be different.
  • Scenario 1 If the second device receives the second system information from the first device, the second device may select a relay to access the network according to the second system information.
  • the method for the second device to select relay includes one of the following:
  • the second device selects the first device as a relay to access the network
  • the second device selects the first device as the relay to access the network
  • the second device does not select the first device as a relay to access the network;
  • the second device selects the first device as a relay for accessing the network
  • the second device does not select the first device as a relay for accessing the network.
  • the specific information of the second device in the specific information that allows data relaying for devices of different PLMNs includes: the group of the second device, the service to be initiated, or the service to be initiated
  • the service group is in the specific information that is allowed to relay data for devices of different PLMNs.
  • the specific information of the second device in the specific information that is not allowed to relay data for devices of different PLMNs includes: the group of the second device, the service to be initiated, or the group of the service to be initiated is not allowed to be Different PLMN devices relay data in specific information.
  • Scenario 2 If the second device receives the second system information and the discovery message from the first device, the second device may comprehensively select the relay to access the network according to the second system information and the discovery message.
  • the relay selection information includes a discovery message from the first device, such as a relay terminal.
  • the discovery message includes at least one of the following:
  • the manner in which the second device selects a relay includes at least one of the following:
  • the PLMN information of the second device is included in the second system information and the PLMN information allowed to be relayed in the discovery message, select the first device as a relay to access the network;
  • the first device When the PLMN information of the second device is in the second system information and the PLMN information that is not allowed to be relayed in the discovery message, the first device is not selected as the relay to the network;
  • the second device selects the first device as the medium of the access network.
  • the second device does not select the first device as the access network Relay
  • the relay to access the network is selected according to the second system information.
  • the second device selects the relay to access the network according to the second system information.
  • the PLMN information of the first device includes at least one of the serving PLMN information of the first device, the registered land public mobile communication network RPLMN information, and the HPLMN information.
  • Scenario 3 If the second device receives a relay authorization instruction from a network device, the second device may select a relay to access the network according to the relay authorization instruction.
  • the method further includes: the second device receiving a relay authorization instruction.
  • the relay authorization indication includes at least one of the following:
  • the second device may save a list of PLMN networks that are allowed to relay according to the relay authorization instruction, or save a list of specific information that is allowed to relay data for devices of different PLMNs.
  • the discovery message received by the second device from the first device may include the PLMN information of the first device.
  • the way for the second device to select a relay may include at least one of the following:
  • the PLMN information in the discovery message is in the PLMN network list of the second device that is allowed to relay, select the first device as the relay of the access network;
  • the specific information in the discovery message is in the list of specific information of the second device that is allowed to relay data for devices of different PLMNs, select the first device as a relay to access the network;
  • the relay to access the network is selected according to the second system information.
  • the second device selects the relay to access the network according to the second system information.
  • the second device may also save a list of PLMN networks that are not allowed to relay, or save a list of specific information that is not allowed to relay data for devices of different PLMNs.
  • the way the second device chooses to relay may also include:
  • the PLMN information in the discovery message is in the PLMN network list of the second device that does not allow relay, the first device is not selected as the relay of the access network;
  • the specific information in the discovery message is in the list of specific information of the second device that is not allowed to relay data for devices of different PLMNs, the first device is not selected as a relay for accessing the network.
  • the relay selection information can instruct other devices to select a relay according to the PLMN information, so that the device can access the network through a suitable relay.
  • the remote terminal can receive relay selection information from the relay terminal or a relay authorization instruction from the network device, so that it can select a suitable relay to access the network according to the PLMN information.
  • the terminal may use a relay to transmit data.
  • the D2D technology is used for communication between the remote terminal (Remote UE) and the relay terminal (Relay UE).
  • the interface between UEs is the PC5 interface.
  • the interface between the relay terminal and the network equipment such as the eNB is Uu.
  • the base station can communicate with the Public Safety (Public Safety) Application Server (AS) through the Evolved Packet Core (EPC), and the communication interface is the SGi interface.
  • the remote terminal needs to discover and select a relay terminal. For example, the ways in which the relay terminal and the remote terminal discover each other are divided into Mode A (Model A) and Mode B (Model B).
  • UE-1 (Relay UE) broadcasts the relay service code (RSC) and announcement message (Announcement message) that it supports.
  • the notification message may include notification information (Announcer Info).
  • the notification information includes the International Mobile Subscriber Identity (IMSI). If surrounding UEs (remote UEs), such as UE-2, UE-3, UE-4, or UE-5, also hold the same RSC, a PC5 connection can be established with UE-1.
  • IMSI International Mobile Subscriber Identity
  • UE-1 (Remote UE) broadcasts a request message (Solicitation message), and the terminal that receives the request message sends a discovery message (Discoverer message). Broadcast the RSC and Discoverer message that you need to use.
  • the discovery message may include discovery information (Discoverer Info), for example, the discovery information includes IMSI.
  • the surrounding UE Relay UE
  • UE-2 and UE-3 also holds the same RSC, that is, it can provide the service, then respond to UE1.
  • UE-2 and UE-3 return a response message (Response message).
  • UE-1 selects one of multiple responding UEs and establishes a PC5 connection.
  • the Remote UE can select the Relay UE with the best signal quality.
  • the relay terminal may forward the system information of the network to the remote terminal, and the remote terminal may consider both the content of the system information and the information of the relay terminal in the process of selecting the relay terminal.
  • the remote terminal may consider both the content of the system information and the information of the relay terminal in the process of selecting the relay terminal.
  • the PCF authorizes the relay terminal to use system information to indicate relay selection, which may specifically include the following steps:
  • Step 801. The PCF authorizes the relay terminal.
  • the authorization instruction information sent by the PCT to the relay terminal may include at least one of the following:
  • the specific information in the authorization indication information may include a specific group or a specific service.
  • a specific group or a specific service For example, for public safety groups or services, it is allowed to relay data for devices of different PLMNs.
  • the above-mentioned different PLMNs may include at least one of the following situations:
  • Step 802. The relay terminal reads the system information of the current cell.
  • Step 803. The relay terminal determines the content of the forwarded system information (determine the relayed SIB information) according to the authorization instruction information in step 801.
  • the content of the system information forwarded by the relay terminal to the remote terminal may also be different. Specific examples are as follows:
  • Example 1 If the authorization indication information in step 801 includes allowing to relay data for the remote terminal of a different PLMN, the relay terminal does not modify the supported PLMN information in the received system information.
  • Example 2 If the authorization indication information in step 801 includes that it is not allowed to relay data for remote terminals of different PLMNs, the relay terminal does not forward the relevant information of the different PLMNs in the system information.
  • PLMN related information includes, for example, PLMN access control information, cell blocking information, and so on.
  • Example 3 If the authorization indication information in step 801 includes specific information (such as a specific group and/or a specific service) that allows data to be relayed for devices of different PLMNs, the relay terminal includes permission and/ in the forwarded system information Or it is not allowed to relay data specific information for devices of different PLMNs.
  • specific information such as a specific group and/or a specific service
  • Example 4 If the authorization indication information in step 801 includes allowed and/or disallowed relaying PLMN information, the relay terminal adjusts the PLMN information in the system information.
  • the adjusted system information includes relevant information of permitted PLMN and/or relevant information of disallowed PLMN.
  • the non-access layer of the relay terminal submits the above authorization instruction information to the access layer.
  • the non-access layer here may be the protocol layer that receives the above authorization indication information.
  • Step 804. Forward the system information (Relay SIB) determined in the previous step.
  • Step 805. The remote terminal performs the PLMN selection and registration process according to the system information received from the relay terminal. Specific examples are as follows:
  • Example 1 If the system information received by the remote terminal from the relay terminal in step 803 includes the PLMN information of the remote terminal, such as HPLMN information, RPLMN, current serving PLMN, etc., the remote terminal can select the relay terminal as Access to the network relay. Otherwise, the relay terminal is not selected as a relay to access the network.
  • the PLMN information of the remote terminal such as HPLMN information, RPLMN, current serving PLMN, etc.
  • Example 2 If the system information that the remote terminal receives from the relay terminal in step 803 includes the PLMN information that allows relaying, the remote terminal can select the relay terminal as the access The relay of the network. Otherwise, the relay terminal is not selected as a relay to access the network.
  • Example 3 If the system information received by the remote terminal from the relay terminal includes the PLMN information that is not allowed to be relayed, including the PLMN information of the remote terminal, the remote terminal does not select the relay terminal as the access network relay.
  • Example 4 If the system information received by the remote terminal from the relay terminal in step 803 includes specific information that allows data to be relayed for devices of different PLMNs, such as a specific group or a specific service, the remote terminal determines which group it is in Or whether the service to be initiated or the group of the service to be initiated belongs to the scope of allowed relay. If allowed, the remote terminal can select the relay terminal as a relay to access the network. If not allowed, the remote terminal does not select the relay terminal as a relay to access the network.
  • specific information that allows data to be relayed for devices of different PLMNs such as a specific group or a specific service
  • Example 5 If the system information received by the remote terminal from the relay terminal in step 803 includes specific information that is not allowed to relay data for devices of different PLMNs, the remote terminal determines the group it is in or the service to be initiated or the service to be initiated Whether the service group belongs to the range that does not allow relaying. If it is, the remote terminal does not select the relay terminal as a relay to access the network.
  • the access layer of the remote terminal submits the received system information to the non-access layer, and the non-access layer makes a judgment.
  • the network can control whether to allow data to be relayed for different PLMNs, and further, perform different controls for whether different groups/services are allowed to relay data.
  • the PCF authorizes the relay terminal to use system information and discovery messages to indicate relay selection, which may specifically include the following steps:
  • Step 901. The PCF authorizes the relay terminal.
  • the authorization instruction information sent by the PCT to the relay terminal For the content included in the authorization indication information, refer to the related description of the authorization indication information in step 801 in the embodiment of FIG. 8.
  • Step 902. The relay terminal receives system information from the NG-RAN.
  • Step 903. The relay terminal forwards the received system information.
  • Step 904. The relay terminal sends a discovery message, which carries at least one of the following information authorized in step 901, for example:
  • Step 905. After receiving the system information and discovery message forwarded by the relay terminal, the remote terminal decides whether to select the relay terminal to access the network according to the information in the discovery message and system information. specific,
  • Example 1 If it is found that the PLMN information of the message and system information allowed to be relayed includes the PLMN information of the remote terminal, the remote terminal selects the relay terminal as a relay to access the network.
  • Example 2 If it is found that the PLMN information of the remote terminal that is not allowed to be relayed in the message and system information includes the PLMN information of the remote terminal, the remote terminal does not select the relay terminal as a relay to access the network.
  • Example 3 If the PLMN information of the remote terminal is not included in the PLMN information allowed to be relayed in the discovery message and system information; and specific information such as a specific group and/or a specific service is allowed to relay data for different PLMN devices If it matches the information of the remote terminal, the remote terminal selects this relay terminal as the relay to access the network.
  • Example dead If the PLMN information of the remote terminal is not included in the PLMN information allowed to be relayed in the discovery message and system information; and it is not allowed to relay data specific information such as specific groups and/or specific groups for devices of different PLMNs If the service matches the information of the remote terminal, the remote terminal does not select this relay terminal as the relay to access the network.
  • Example 5 If the discovery message does not carry any PLMN information, the remote terminal considers that the discovery message is not limited, and selects the relay to access the network according to the PLMN information in the system information. Refer to the related description of step 805 in the foregoing embodiment.
  • the network can control whether to allow relaying of data for different PLMNs, and further control whether to allow relaying of data for different groups/services.
  • the PCF authorizes the remote terminal to select a relay, which can specifically include the following steps:
  • Step 1001. The PCF authorizes the remote terminal.
  • the authorization instruction information sent by the PCT to the remote terminal For the content included in the authorization indication information, refer to the related description of the authorization indication information in step 801 in the embodiment of FIG. 8.
  • the remote terminal After receiving the relay authorization instruction, the remote terminal can save a list of PLMN networks that are allowed to relay.
  • Step 1002 The relay terminal receives system information from the NG-RAN.
  • Step 1003. The relay terminal forwards the received system information.
  • Step 1004. The relay terminal sends a discovery message, which carries the serving PLMN information, RPLMN information, or HPLMN information of the relay terminal.
  • Step 1005. After receiving the system information and discovery message forwarded by the relay terminal, the remote terminal decides whether to select the relay terminal to access the network according to the information in the discovery message and system information. Examples are as follows:
  • Example 1 The PLMN information included in the discovery message is selected from the list of PLMN networks that the remote terminal receives the relay authorization instruction to allow the relay to access the network.
  • Example 2 The PLMN information included in the discovery message is in the PLMN network list for which the relay authorization indication received by the remote terminal is not allowed, and the relay terminal is not selected to access the network.
  • Example 3 The PLMN information of the discovery message is in the list of specific information that is allowed to relay data for devices of different PLMNs, and then this relay terminal is selected to access the network.
  • Example 4 If the discovery message does not carry any PLMN information, the remote terminal considers that the discovery message is not limited, and selects the relay to access the network according to the PLMN information in the system information. Refer to the related description of step 805 in the foregoing embodiment.
  • the network can control whether to allow relaying of data for different PLMNs, and further control whether to allow relaying of data for different groups/services.
  • the relay method in the embodiments of the present application can not only be applied to scenarios where a remote terminal accesses the network through a relay terminal, but also can be applied to scenarios such as selecting a peer UE in D2D.
  • FIG. 11 is a schematic block diagram of a communication device 1100 according to an embodiment of the present application.
  • the communication device 1100 may include: a processing unit 1101, configured to send relay selection information, where the relay selection information is used to instruct the second device to select a relay according to the PLMN information of the land public mobile communication network.
  • the processing unit 1101 is further configured to receive a relay authorization instruction from the third device.
  • the third device is a policy control network element PCF.
  • the relay authorization indication includes at least one of the following:
  • different PLMNs include at least one of the following:
  • the processing unit 1101 is further configured to receive the first system information from the fourth device.
  • the fourth device is a base station.
  • the relay selection information includes second system information, and the second system information includes at least one of the following:
  • the relay selection information includes a discovery message.
  • the discovery message includes at least one of the following:
  • the PLMN information of the communication device such as the first device.
  • the PLMN information of the communication device includes at least one of the serving PLMN information of the communication device, the registered land public mobile communication network RPLMN information, and the HPLMN information.
  • the specific information includes a specific group and/or a specific business.
  • the communication device 1100 of the embodiment of the present application can implement the corresponding function of the first device, such as the relay device, in the foregoing method embodiment.
  • the first device such as the relay device
  • the communication device 1100 can implement the corresponding functions of the first device, such as the relay device, in the foregoing method embodiment.
  • the corresponding processes, functions, implementation manners, and beneficial effects of each module (sub-module, unit or component, etc.) in the communication device 1100 please refer to the corresponding description in the foregoing method embodiment, which will not be repeated here.
  • each module (sub-module, unit or component, etc.) in the communication device 1100 of the application embodiment can be implemented by different modules (sub-module, unit or component, etc.), or by the same one. Module (sub-module, unit or component, etc.) implementation.
  • FIG. 12 is a schematic block diagram of a communication device 1200 according to another embodiment of the present application.
  • the communication device 1200 may include: a sending unit 1201, configured to send a relay authorization instruction.
  • the sending unit is a policy control network element PCF.
  • the sending unit 1201 is further configured to perform at least one of the following steps:
  • the relay authorization indication includes at least one of the following:
  • the specific information includes a specific group and/or a specific business.
  • the communication device 1200 of the embodiment of the present application can implement the corresponding function of the third device, such as the PCF, in the foregoing method embodiment.
  • the third device such as the PCF
  • each module (sub-module, unit or component, etc.) in the communication device 1200 of the application embodiment can be implemented by different modules (sub-module, unit or component, etc.), or by the same one. Module (sub-module, unit or component, etc.) implementation.
  • FIG. 13 is a schematic block diagram of a communication device 1300 according to another embodiment of the present application.
  • the communication device 1300 may include:
  • the receiving unit 1301 is configured to receive relay selection information, where the relay selection information is used to instruct the second device to select a relay according to the PLMN information of the land public mobile communication network;
  • the selecting unit 1302 is configured to select a relay according to the PLMN information.
  • the relay selection information includes second system information from the first device, and the second system information includes at least one of the following:
  • the specific information includes a specific group and/or a specific business.
  • different PLMNs include at least one of the following:
  • the method for the selecting unit 1302 to select the relay includes one of the following:
  • the PLMN information of the communication device for example, the second device is in the second system information, select the first device as a relay to access the network;
  • the PLMN information of the communication device is in the PLMN information that allows relaying, select the first device as the relay to access the network;
  • the first device is not selected as a relay to access the network
  • the specific information of the communication device is among the specific information that allows relaying data for devices of different PLMNs, select the first device as the relay of the access network;
  • the first device is not selected as the relay of the access network.
  • the specific information of the communication device in the specific information that allows data relaying for devices of different PLMNs includes:
  • the group of the communication device, the service to be initiated, or the group of the service to be initiated are in the specific information that is allowed to relay data for devices of different PLMNs.
  • the relay selection information includes a discovery message from the first device.
  • the discovery message includes at least one of the following:
  • PLMN information of the first device is PLMN information of the first device.
  • the method for the selecting unit 1302 to select the relay includes at least one of the following:
  • the PLMN information of the communication device is included in the second system information and the PLMN information allowed to be relayed in the discovery message, select the first device as a relay to access the network;
  • the first device is not selected as the relay for accessing the network
  • the specific information of the communication device is in the second system information and the specific information that allows relaying data for devices of different PLMNs in the discovery message, select the first device as a relay for accessing the network;
  • the first device is not selected as a relay for accessing the network
  • the relay to access the network is selected according to the second system information.
  • the PLMN information of the first device includes at least one of the serving PLMN information of the first device, RPLMN information of the registered land public mobile communication network, and HPLMN information.
  • the method for the selecting unit 1302 to select the relay includes at least one of the following:
  • the PLMN information in the discovery message is in the PLMN network list of the communication device that is allowed to relay, select the first device as the relay of the access network;
  • the specific information in the discovery message is in the list of specific information of the communication device that is allowed to relay data for devices of different PLMNs, select the first device as the relay for accessing the network;
  • the relay to access the network is selected according to the second system information.
  • the receiving unit 1301 is further configured to receive a relay authorization instruction.
  • the relay authorization indication includes at least one of the following:
  • the communication device 1300 of the embodiment of the present application can implement the corresponding function of the second device, such as a remote terminal, in the foregoing method embodiment.
  • the functions described in each module (sub-module, unit or component, etc.) in the communication device 1300 of the application embodiment can be implemented by different modules (sub-module, unit or component, etc.), or by the same one. Module (sub-module, unit or component, etc.) implementation.
  • FIG. 14 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application.
  • the communication device 600 shown in FIG. 14 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 620.
  • the processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.
  • the memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 600 may be the first device, the second device, or the third device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the communication device 600 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • I will not repeat them here.
  • FIG. 15 is a schematic structural diagram of a chip 700 according to an embodiment of the present application.
  • the chip 700 shown in FIG. 15 includes a processor 710, and the processor 710 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720.
  • the processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.
  • the memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.
  • the chip 700 may further include an input interface 730.
  • the processor 710 can control the input interface 730 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
  • the chip 700 may further include an output interface 740.
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the chip can be applied to the first device, the second device, or the third device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • I won’t repeat it here.
  • the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.
  • the aforementioned processors can be general-purpose processors, digital signal processors (digital signal processors, DSP), ready-made programmable gate arrays (field programmable gate arrays, FPGAs), application specific integrated circuits (ASICs), or Other programmable logic devices, transistor logic devices, discrete hardware components, etc.
  • DSP digital signal processors
  • FPGA field programmable gate arrays
  • ASIC application specific integrated circuits
  • the aforementioned general-purpose processor may be a microprocessor or any conventional processor.
  • the above-mentioned memory may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM).
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), 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 to say, the memory in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.
  • FIG. 16 is a schematic block diagram of a communication system 800 according to an embodiment of the present application.
  • the communication system 800 includes a first device 810 and a second device 820.
  • the first device 810 is configured to send relay selection information, where the relay selection information is used to instruct the second device to select a relay according to the PLMN information of the land public mobile communication network.
  • the second device 810 is configured to receive relay selection information, where the relay selection information is used to instruct the second device to select a relay according to PLMN information of a land-based public mobile communication network; and to select a relay according to the PLMN information.
  • the first device 810 can be used to implement the corresponding functions implemented by the first device such as a relay device in the above method
  • the second device 820 can be used to implement the above method by the second device such as a remote device.
  • the corresponding function For the sake of brevity, I will not repeat them here.
  • the communication system may further include: a third device 830, configured to send a relay authorization instruction.
  • the third device sends a relay authorization instruction to the first device and/or the second device.
  • the third device 830 may be used to implement corresponding functions implemented by the third device, such as PCF, in the foregoing method. For the sake of brevity, I will not repeat them here.
  • the communication system may further include: a fourth device (not shown in the figure), configured to send the first system information to the first device.
  • the fourth device may be used to implement corresponding functions implemented by the fourth device, such as a base station, in the foregoing method. For the sake of brevity, I will not repeat them here.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instruction may be transmitted from a website, computer, server, or data center through a cable (Such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application.
  • the implementation process constitutes any limitation.

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Abstract

La présente invention se rapporte à un procédé de relais, à un dispositif terminal et à un dispositif de réseau. Le procédé comprend les étapes suivantes : un premier dispositif envoie des informations de sélection de relais, qui sont utilisées pour ordonner à un second dispositif de sélectionner un relais selon des informations de réseau mobile terrestre public (RMTP). Dans les modes de réalisation de la présente invention, des informations de sélection de relais sont utilisées pour ordonner à un autre dispositif de sélectionner un relais selon des informations RMTP, de telle sorte que le dispositif peut accéder à un réseau au moyen d'un relais approprié.
PCT/CN2020/086186 2020-04-22 2020-04-22 Procédé de relais et dispositif de communication WO2021212374A1 (fr)

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