Multi-hop capability indication method, device and system, communication equipment and storage medium

Abstract

The invention relates to a multi-hop capability indication method, device and system, communication equipment, a storage medium and a computer program product. The method comprises the following steps: sending a registration request message to an access and mobility management function (AMF); the registration request message comprises an indication that the UE supports the multi-hop capability, so that the AMF and the PCF determine related decisions according to the indication of the multi-hop capability. By adopting the method, the application range of the multi-hop capability indication method can be expanded.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a multi-hop capability indication method, apparatus, system, communication equipment, storage medium, and computer program product. Background Art

[0002] Currently, the 3GPP (3rd Generation Partnership Project) international standard agreement specifies the 5G (5G Network, fifth-generation mobile communication network) ProSe (Proximity-based services) Capability during the UE (User Equipment) registration process.

[0003] However, the current 3GPP international standard protocol only specifies the 5G ProSe Capability in the 5G ProSe single-hop scenario. As a result, the 5G ProSe Capability described in the existing 3GPP international standard protocol is insufficient to support multi-hop scenarios, making it impossible to use 5G ProSe technology in multi-hop scenarios, thereby narrowing the scope of application of the current multi-hop capability indication method. Summary of the Invention

[0004] The embodiments of the present application provide a multi-hop capability indication method, apparatus, system, communication device, storage medium, and computer program product, which expand the scope of application of the multi-hop capability indication method.

[0005] A multi-hop capability indication method, the method comprising:

[0006] Send a registration request message to the access and mobility management function AMF; the registration request message includes an indication that the user terminal UE supports multi-hop capability, so that the AMF and the policy control function PCF determine relevant decisions based on the indication of the multi-hop capability.

[0007] In one of the embodiments, the indication of the multi-hop capability represents that the UE supports: multi-hop transmission function of the fifth generation mobile communication network short distance service 5G ProSe layer 2 network UE to network relay multi-hop, and multi-hop transmission function of the 5G ProSe layer 3 network UE to network relay multi-hop; or multi-hop transmission function of the 5G ProSe layer 2 network UE to UE relay multi-hop, and multi-hop transmission function of the 5G ProSe layer 3 network UE to UE relay multi-hop.

[0008] In one of the embodiments, the relevant decision includes the AMF selecting a PCF that supports the fifth-generation mobile communication network short-range service 5G ProSe capability configuration to perform the 5G ProSe capability configuration.

[0009] A multi-hop capability indication device, comprising:

[0010] A sending module is configured to send a registration request message to an access and mobility management function (AMF); the registration request message includes an indication that the user terminal (UE) supports multi-hop capability, so that the AMF and the policy control function (PCF) determine relevant decisions based on the indication of the multi-hop capability.

[0011] In one of the embodiments, the indication of the multi-hop capability represents that the UE supports: multi-hop transmission function of the fifth generation mobile communication network short distance service 5G ProSe layer 2 network UE to network relay multi-hop, and multi-hop transmission function of the 5G ProSe layer 3 network UE to network relay multi-hop; or multi-hop transmission function of the 5G ProSe layer 2 network UE to UE relay multi-hop, and multi-hop transmission function of the 5G ProSe layer 3 network UE to UE relay multi-hop.

[0012] In one of the embodiments, the relevant decision includes the AMF selecting a PCF that supports the fifth-generation mobile communication network short-range service 5G ProSe capability configuration to perform the 5G ProSe capability configuration.

[0013] A multi-hop capability indication system, comprising:

[0014] The user terminal UE is configured to send a registration request message to the access and mobility management function AMF; the registration request message includes an indication that the user terminal UE supports multi-hop capability, so that the AMF and the policy control function PCF determine relevant decisions based on the indication of the multi-hop capability;

[0015] The AMF is used to receive the registration request message and determine a relevant decision based on the indication of the multi-hop capability and the PCF.

[0016] A communication device comprising: a transmitter;

[0017] The transmitter is used to send a registration request message to the access and mobility management function AMF; the registration request message includes an indication that the user terminal UE supports multi-hop capability, so that the AMF and the policy control function PCF determine relevant decisions based on the indication of the multi-hop capability.

[0018] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the following steps:

[0019] Send a registration request message to the access and mobility management function AMF; the registration request message includes an indication that the user terminal UE supports multi-hop capability, so that the AMF and the policy control function PCF determine relevant decisions based on the indication of the multi-hop capability.

[0020] A computer program product, including a computer program, is characterized in that when the computer program is executed by a processor, it implements the multi-hop capability indication method provided in the embodiments of the present application. The method may be:

[0021] Send a registration request message to the access and mobility management function AMF; the registration request message includes an indication that the user terminal UE supports multi-hop capability, so that the AMF and the policy control function PCF determine relevant decisions based on the indication of the multi-hop capability.

[0022] The multi-hop capability indication method, apparatus, system, communication device, storage medium, and computer program product described above send a registration request message to an access and mobility management function (AMF); the registration request message includes an indication that the user terminal (UE) supports multi-hop capability, causing the AMF and policy control function (PCF) to make relevant decisions based on the multi-hop capability indication. This method, by including an indication that the user terminal supports multi-hop capability in the sent registration request message, causes the AMF and PCF to make relevant decisions based on the multi-hop capability indication, thereby enabling the AMF and PCF to support multi-hop capability, implementing the use of 5G ProSe technology in multi-hop scenarios based on the registration request message, and expanding the scope of application of the multi-hop capability indication method. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a diagram illustrating an application environment of a multi-hop capability indication method according to an embodiment;

[0024] Figure 2 FIG1 is a reference architecture diagram of UE to network relay in a 5G ProSe layer 3 network in one embodiment;

[0025] Figure 3 A diagram illustrating a reference architecture for UE-to-network relay in a 5G ProSe layer 2 network in one embodiment;

[0026] Figure 4 FIG. 4 is a diagram showing the internal structure of a communication device in one embodiment. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0028] Figure 1 This is a schematic diagram of an application scenario of a multi-hop capability indication provided by an embodiment of the present application. Figure 1 As shown, in this scenario, there is a user terminal (UE) 110, a radio access network (RAN) 120, an access and mobility management function (AMF) 130, and a policy control function (PCF) 140. This scenario may include multiple UEs 110.

[0029] UE 110 may be a wireless terminal, which may be a device that provides voice and / or other service data connectivity to a user, or a handheld device with wireless connectivity, or other processing device connected to a wireless modem. A wireless terminal may communicate with one or more core networks via a Radio Access Network (RAN). A wireless terminal may be a mobile terminal, such as a mobile phone (or "cellular" phone) or a computer with a mobile terminal. For example, a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device may exchange voice and / or data with a radio access network. A wireless terminal may also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile, remote station, remote terminal, access terminal, user terminal, user agent, user device, or user equipment, without limitation herein.

[0030] It should be noted that the beneficial effects or technical problems solved by the embodiments of the present application are not limited to this one, but may also include other implicit or related problems. For details, please refer to the description of the following embodiments.

[0031] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0032] In one embodiment, a multi-hop capability indication method is provided, which is applied to Figure 1 Taking UE 110 (hereinafter referred to as UE) in FIG. 1 as an example, the following steps are included:

[0033] Step 102: Send a registration request message to the access and mobility management function AMF.

[0034] The registration request message includes an indication that the user terminal UE supports multi-hop capability, so that the AMF and the policy control function PCF make relevant decisions based on the indication of the multi-hop capability.

[0035] In implementation, the UE sends a registration request message to the RAN. The RAN then forwards the registration request message to the AMF, allowing the AMF and PCF to make relevant decisions based on the multi-hop capability indication, thereby enabling the AMF and PCF to support the use of 5G ProSe technology in multi-hop scenarios.

[0036] In the above-mentioned multi-hop capability indication method, the user terminal supports multi-hop capability through the indication in the registration request message sent, so that the AMF and PCF determine relevant decisions based on the indication of the multi-hop capability, thereby enabling the AMF and PCF to support multi-hop capability, realizing the use of 5G ProSe technology in multi-hop scenarios based on the registration request message, and expanding the scope of application of the multi-hop capability indication method.

[0037] In one embodiment, the indication of the multi-hop capability indicates that the UE supports: multi-hop transmission function of the fifth generation mobile communication network short distance service 5G ProSe layer 2 network UE to network relay multi-hop, 5G ProSe layer 3 network UE to network relay multi-hop; or 5G ProSe layer 2 network UE to UE relay multi-hop, 5G ProSe layer 3 network UE to UE relay multi-hop.

[0038] Among them, 5G ProSe is the fifth-generation mobile communication network short-range service, 5G is the 5th Generation Mobile Communication Technology, the fifth-generation mobile communication network, and ProSe is the proximity-based services.

[0039] In implementation, the multi-hop capability indication indicates that the UE supports 5G ProSe layer 2 network UE-to-network relay multi-hop, and supports 5G ProSe layer 3 network UE-to-network relay multi-hop. At the same time, the UE supports multi-hop transmission functions of 5G ProSe layer 2 network UE-to-UE relay multi-hop and 5G ProSe layer 3 network UE-to-UE relay multi-hop. The multi-hop capability indication is added to the registration request message, so that the UE sends the registration request message to the AMF, thereby making it clear to the AMF that the UE has multi-hop transmission capability. In addition, because the AMF stores the 5G ProSe capability for 5G ProSe operations, the AMF supports 5G ProSe multi-hop scenarios.

[0040] Specifically, the registration request message contains 5G ProSe capabilities indicating whether the UE supports one or more of the following ProSe capabilities: 5G ProSe direct discovery; 5G ProSe direct communication; 5G ProSe layer 2 network UE to network relay; 5G ProSe layer 3 network UE to network relay; 5G ProSe layer 2 network UE to UE relay; 5G ProSe layer 3 network UE to UE relay; 5G ProSe layer 2 network remote UE; 5G ProSe layer 3 network remote UE; 5G ProSe layer 2 network UE to UE relay; 5G ProSe layer 3 network UE to UE relay; 5G ProSe layer 2 network UE to UE relay multi-hop; 5G ProSe layer 3 network UE to UE relay multi-hop; 5G ProSe layer 2 network end-user UE (end-user UE is End UE); 5G ProSe layer 3 network end-user UE.

[0041] In this embodiment, by indicating in the registration request message that the UE can support the multi-hop transmission function in the layer 2 network and the layer 3 network, and sending the message to the AMF, the subsequent AMF can support data transmission between UE and UE and between UE and network in different layer networks, thereby expanding the scope of application of the multi-hop capability indication method.

[0042] In one embodiment, the relevant decision includes the AMF selecting a PCF that supports the fifth-generation mobile communication network short distance service 5G ProSe capability configuration to perform 5G ProSe capability configuration.

[0043] In implementation, the relevant decision includes AMF selecting a PCF that supports 5G ProSe capability configuration and configuring the PCF with 5G ProSe capability. Specifically, when receiving 5G ProSe Capability (5G Short Range Service Communication Capability) in Npcf UE PolicyControl_Create (a service operation name) request from AMF or receiving updated subscription data from UDR (Unified Data Repository), PCF generates PC5 QoS (where PC5 is a name of a direct communication interface, QoS (Quality of Service)) parameters used by NG-RAN (Next Generation Radio Access Network, 5G Radio Access Network), corresponding to the UE defined in 3GPP TS (TS is Technical Specification) 23.287 [2] Section 5.4.2. AMF will select a PCF that supports 5G ProSe policy / parameter configuration based on the indication of 5G ProSe function in "5GMM (5GS mobility management) function" in the registration request.

[0044] In this embodiment, the 5G ProSe capability is configured by the PCF that determines the 5G ProSe capability configuration in the relevant decision, so that the PCF supports the multi-hop capability of the UE in the 5G ProSe scenario, thereby expanding the scope of application of the multi-hop capability indication method.

[0045] In an exemplary embodiment, since the layer 2 network and the layer 3 network have different architectures in 5G, the embodiment of the present application implements the multi-hop capability indication method from the layer 2 network and the layer 3 network respectively. Figure 2 This is a reference architecture diagram for UE to network relay in 5G ProSe layer 3 network. Figure 2The 5G ProSe (ProSe) transport layer consists of a remote user terminal (Remote UE), at least one Layer-3 UE-to-Network Relay (Layer 3 UE-to-Network Relay), NG-RAN, 5G Core Network (5G Core Network), and Data Network. The remote user terminal sends a registration request message to the AMF; this registration request message includes an indication that the UE supports multi-hop capabilities, enabling the AMF and PCF to make decisions based on this multi-hop capability. The Layer-3 UE-to-Network Relay implements multi-hop 5G ProSe Layer 3 UE-to-Network Relay. The remote user terminal and the Layer-3 UE-to-Network Relay communicate using the PC5 interface. The Layer-3 UE-to-Network Relay and NG-RAN use the Uu interface (the uppercase U represents the User-to-Network Interface (UNI) and the lowercase u represents Universal). Communication between the 5G Core Network and the Data Network occurs over the N6 reference point.

[0046] Figure 3 This is a reference architecture diagram for UE-to-network relay in a 5G ProSe layer 2 network. Figure 3 There is a remote user terminal (Remote UE), at least one Layer-2 ProSe UE-to-Network Relay (Layer 2 network short distance service communication user equipment to network relay), NG-RAN, Remote UE AMF (remote user terminal access and mobility management function), Remote UE SMF (remote user terminal session management function), Remote UE UPF (remote user terminal user plane function), Relay UE AMF (relay user terminal access and mobility management function), Relay UE UPF (relay user terminal user plane function), Relay UE SMF (relay user terminal session management function) and DataNetwork.

[0047] The remote user terminal sends a registration request message to the AMF. This registration request message includes an indication that the UE supports multi-hop capabilities, enabling the AMF and PCF to make decisions based on this indication. Layer-2 ProSe UE-to-Network Relay is used to implement multi-hop UE-to-network relay in the 5G ProSe layer 2 network. The Remote UE AMF, Remote UE SMF, and Remote UE UPF are 5GC network functions related to the Remote UE. The Relay UE AMF, Relay UE UPF, and Relay UE SMF are 5GC network functions related to the Relay UE.

[0048] The remote user terminal and the Layer-2 ProSe UE-to-Network Relay communicate over the PC5 interface. The Layer-2 ProSe UE-to-Network Relay and the NG-RAN communicate over the Uu interface. The remote user terminal and the NG-RAN communicate over the Uu interface. The remote user terminal and the Remote UE AMF communicate over the N1 reference point. The Layer-2 ProSe UE-to-Network Relay and the Relay UE AMF communicate over the N1 reference point. The NG-RAN communicates with the Relay UE AMF and the Remote UE AMF, respectively, over the N2 reference point. The NG-RAN communicates with the Relay UE UPF and the Remote UE UPF, respectively, over the N3 reference point. The Remote UE AMF and the Remote UE SMF communicate over the N11 reference point. The Relay UE AMF and the Relay UE SMF communicate over the N11 reference point. The Remote UE SMF and the Remote UE UPF communicate over the N4 reference point. The N4 reference point is used for communication between the Relay UE SMF and the RelayUE UPF. The N6 reference point is used for communication between the Remote UE UPF and the DataNetwork. The N6 reference point is used for communication between the Relay UE UPF and the DataNetwork.

[0049] It should be understood that although Figure 1-3 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. In addition, Figure 1-3At least part of the steps may include multiple steps or multiple stages. These steps or stages are not necessarily performed at the same time, but can be performed at different times. The order of execution of these steps or stages is not necessarily one by one, but can be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

[0050] In one embodiment, a multi-hop capability indication device is provided, comprising: a sending module, wherein:

[0051] The sending module is used to send a registration request message to the access and mobility management function AMF; the registration request message includes an indication that the user terminal UE supports multi-hop capability, so that the AMF and the policy control function PCF determine relevant decisions based on the indication of the multi-hop capability.

[0052] In one of the embodiments, the indication of the multi-hop capability indicates that the UE supports: multi-hop transmission function of the fifth generation mobile communication network short distance service 5G ProSe layer 2 network UE to network relay multi-hop, 5G ProSe layer 3 network UE to network relay multi-hop; or multi-hop transmission function of 5G ProSe layer 2 network UE to UE relay multi-hop, 5G ProSe layer 3 network UE to UE relay multi-hop.

[0053] In one of the embodiments, the relevant decision includes the AMF selecting a PCF that supports the fifth-generation mobile communication network short distance service 5G ProSe capability configuration to perform 5G ProSe capability configuration.

[0054] For the specific definition of the multi-hop capability indication device, please refer to the definition of the multi-hop capability indication method above and will not be repeated here. Each module in the multi-hop capability indication device can be implemented in whole or in part through software, hardware, or a combination thereof. Each of the modules can be embedded in or independent of the processor in the computer device in hardware form, or can be stored in the memory of the computer device in software form, so that the processor can call and execute the corresponding operations of each of the modules.

[0055] In one embodiment, a communication device is provided. Figure 4 . Figure 4 It is a structural diagram of a terminal device provided by an embodiment of the present invention. Figure 4 The terminal device 400 shown includes: at least one processor 401, a memory 402, at least one network interface 404, and a user interface 403. The various components in the terminal device 400 are coupled together via a bus system 405. It is understood that the bus system 405 is used to achieve connection and communication between these components. In addition to including a data bus, the bus system 405 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, the bus system 405 is not shown in FIG. Figure 4 Various buses are labeled as bus system 405. In addition, the embodiment of the present invention further includes a transceiver 406, which can be multiple components, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium.

[0056] The user interface 403 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touchpad, or a touch screen).

[0057] It is understood that the memory 402 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 402 of the systems and methods described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

[0058] In some embodiments, the memory 402 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: an operating system 4021 and application programs 4022 .

[0059] The operating system 4021 includes various system programs, such as a framework layer, a core library layer, and a driver layer, for implementing various basic services and handling hardware-based tasks. Application programs 4022 include various application programs, such as a media player (MediaPlayer) and a browser (Browser), for implementing various application services. Programs implementing the methods of the embodiments of the present invention may be included in application programs 4022.

[0060] In an embodiment of the present invention, by calling the program or instructions stored in the memory 402, specifically, the program or instructions stored in the application 4022, the transmitter is used to send a registration request message to the access and mobility management function AMF; the registration request message includes an indication that the user terminal UE supports multi-hop capability, so that the AMF and the policy control function PCF determine relevant decisions based on the indication of the multi-hop capability.

[0061] Some or all of the methods disclosed in the above embodiments of the present invention may also be applied to processor 401, or implemented by processor 401, or implemented by processor 401 in conjunction with other components (e.g., a transceiver). Processor 401 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method may be performed by hardware integrated logic circuits or software instructions within processor 401. Processor 401 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component. The methods, steps, and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in conjunction with the embodiments of the present invention may be directly executed by a hardware decoding processor or by a combination of hardware and software modules within the decoding processor. The software module can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in memory 402, and processor 401 reads the information in memory 402 and performs the steps of the above method in conjunction with its hardware.

[0062] It is understood that the embodiments described in the embodiments of the present invention can be implemented using hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSP devices, DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions of the present application, or a combination thereof.

[0063] For software implementation, the techniques of the embodiments of the present invention can be implemented through modules (e.g., procedures, functions, etc.) that perform the functions of the embodiments of the present invention. The software code can be stored in a memory and executed by the processor 401. The memory can be implemented in the processor 401 or external to the processor 401.

[0064] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0065] Send a registration request message to the access and mobility management function AMF; the registration request message contains an indication that the user terminal UE supports multi-hop capability, so that the AMF and the policy control function PCF make relevant decisions based on the indication of the multi-hop capability.

[0066] In one embodiment, the indication of the multi-hop capability indicates that the UE supports: multi-hop transmission function of the fifth generation mobile communication network short distance service 5G ProSe layer 2 network UE to network relay multi-hop, 5G ProSe layer 3 network UE to network relay multi-hop; or 5G ProSe layer 2 network UE to UE relay multi-hop, 5G ProSe layer 3 network UE to UE relay multi-hop.

[0067] In one embodiment, the relevant decision includes the AMF selecting a PCF that supports the fifth-generation mobile communication network short distance service 5G ProSe capability configuration to perform 5G ProSe capability configuration.

[0068] The present application also provides a computer program product comprising instructions, which, when executed on a computer, causes the computer to perform the following steps:

[0069] Send a registration request message to the access and mobility management function AMF; the registration request message contains an indication that the user terminal UE supports multi-hop capability, so that the AMF and the policy control function PCF make relevant decisions based on the indication of the multi-hop capability.

[0070] In one embodiment, the indication of the multi-hop capability indicates that the UE supports: multi-hop transmission function of the fifth generation mobile communication network short distance service 5G ProSe layer 2 network UE to network relay multi-hop, 5G ProSe layer 3 network UE to network relay multi-hop; or 5G ProSe layer 2 network UE to UE relay multi-hop, 5G ProSe layer 3 network UE to UE relay multi-hop.

[0071] In one embodiment, the relevant decision includes the AMF selecting a PCF that supports the fifth-generation mobile communication network short distance service 5G ProSe capability configuration to perform 5G ProSe capability configuration.

[0072] Those skilled in the art will appreciate that all or part of the processes in the above-described method embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the above-described method embodiments. Any reference to memory, storage, database, or other media used in the embodiments provided herein may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0073] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A multi-hop capability indication method, characterized in that: The method comprises: Send a registration request message to the access and mobility management function AMF; the registration request message includes an indication that the user terminal UE supports multi-hop capability, so that the AMF and the policy control function PCF determine relevant decisions based on the indication of the multi-hop capability.

2. The method according to claim 1, characterized in that The indication of the multi-hop capability indicates that the UE supports: multi-hop transmission function of the fifth-generation mobile communication network short-range service 5G ProSe layer 2 network UE to network relay multi-hop, the 5G ProSe layer 3 network UE to network relay multi-hop; or the 5G ProSe layer 2 network UE to UE relay multi-hop, the 5G ProSe layer 3 network UE to UE relay multi-hop.

3. The method according to claim 1, characterized in that The relevant decision includes the AMF selecting the PCF that supports the fifth-generation mobile communication network short-range service 5G ProSe capability configuration to perform the 5G ProSe capability configuration.

4. A multi-hop capability indication device, characterized in that: The device comprises: A sending module is configured to send a registration request message to an access and mobility management function (AMF); the registration request message includes an indication that the user terminal (UE) supports multi-hop capability, so that the AMF and the policy control function (PCF) determine relevant decisions based on the indication of the multi-hop capability.

5. The device according to claim 4, characterized in that The indication of the multi-hop capability indicates that the UE supports: multi-hop transmission function of the fifth-generation mobile communication network short-range service 5G ProSe layer 2 network UE to network relay multi-hop, the 5G ProSe layer 3 network UE to network relay multi-hop; or the 5G ProSe layer 2 network UE to UE relay multi-hop, the 5G ProSe layer 3 network UE to UE relay multi-hop.

6. The device according to claim 4, characterized in that The relevant decision includes the AMF selecting the PCF that supports the fifth-generation mobile communication network short-range service 5G ProSe capability configuration to perform the 5G ProSe capability configuration.

7. A multi-hop capability indication system, characterized in that: The multi-hop capability indication system includes: The user terminal UE is configured to send a registration request message to the access and mobility management function AMF; the registration request message includes an indication that the user terminal UE supports multi-hop capability, so that the AMF and the policy control function PCF determine relevant decisions based on the indication of the multi-hop capability; The AMF is used to receive the registration request message and determine a relevant decision based on the indication of the multi-hop capability and the PCF.

8. A communication device, characterized in that: include: transmitter; The transmitter is used to send a registration request message to the access and mobility management function AMF; the registration request message includes an indication that the user terminal UE supports multi-hop capability, so that the AMF and the policy control function PCF determine relevant decisions based on the indication of the multi-hop capability.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 3 are implemented.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 3 are implemented.

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