Terminal registration method, network element, terminal, communication system, and storage medium

Abstract

The present disclosure provides a terminal registration method, an access management function network element, a terminal, a communication system, a storage medium, and a computer program. The method, which is applied to an access management function network element, comprises: receiving a terminal registration request which is sent by a terminal by means of a satellite and an access network system and which carries satellite access indication information; on the basis of the satellite access indication information, obtaining QoS information and / or policy information corresponding to a storage forwarding function; and sending terminal registration acceptance information to the terminal, the terminal registration acceptance information comprising: the QoS information and / or the policy information.

Description

Terminal registration method, network element, terminal, communication system and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on and claims priority to an application with CN application number 202311165003.6 and filing date September 11, 2023. The disclosure content of this CN application is hereby incorporated into this disclosure as a whole. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a terminal registration method, an access management function network element, a terminal, a communication system, a storage medium, and a computer program. Background Art

[0004] With the development of mobile communication system technology, the convergence of non-terrestrial communication platforms, represented by satellites, with terrestrial communication networks has emerged. In non-terrestrial network (NTN) scenarios, satellites can provide access services to terminals. Currently, satellite communication services using discontinuous feeder links have been proposed. Satellites and access network systems collaborate to store and receive uplink data via discontinuous feeder links, achieving store-and-forward functionality.

[0005] Summary of the Invention

[0006] According to a first aspect of the present disclosure, a terminal registration method is provided, which is applied to an access management function network element, comprising: receiving a terminal registration request carrying satellite access indication information, sent by a terminal via a satellite and an access network system; obtaining, based on the satellite access indication information, QoS information and / or policy information corresponding to a store-and-forward function provided by the satellite; and sending terminal registration acceptance information to the terminal; wherein the terminal registration acceptance information includes: the QoS information and / or the policy information.

[0007] In some embodiments, obtaining QoS information and / or policy information for data transmission between the terminal and the satellite based on the satellite access indication information includes: sending the satellite access indication information to a policy function network element; and obtaining the QoS information and / or policy information returned by the policy function network element.

[0008] In some embodiments, sending the satellite access indication information to the policy function network element includes: sending an access and mobility policy control service establishment message to the policy function network element to establish an access and mobility policy association service with the policy function network element; wherein, the information carried by the access and mobility policy control establishment message includes: the satellite access indication information.

[0009] In some embodiments, obtaining the QoS information and / or the policy information returned by the policy function network element includes: after the access and mobility policy association service is successfully established, receiving a response message sent by the policy function network element to the access and mobility policy control service establishment message; wherein, the information carried in the response message includes: the QoS information and / or the policy information.

[0010] In some embodiments, sending the terminal registration acceptance information to the terminal includes: sending the terminal registration acceptance information to the terminal via the access network system and the satellite.

[0011] In some embodiments, an N2 message sent by the access network system is received; wherein the access network system sends the terminal registration request via the N2 message.

[0012] In some embodiments, the satellite is configured to provide a store-and-forward function for uplink data of the terminal when the terminal is within the coverage of the satellite and the satellite and the access network system transmit data via a discontinuous feeder link;

[0013] In some embodiments, the access network system includes: a 5G access network system and a 6G access network system.

[0014] In some embodiments, the satellite access indication information includes: information characterizing the use of a satellite access method, a transmission time slot threshold for data transmission between the terminal and the satellite, and a data volume threshold for data transmission between the terminal and the satellite; the QoS information includes: a transmission delay and a transmission rate based on the satellite access; and the policy information includes: a data forwarding priority and a data retention period based on the satellite access.

[0015] According to a second aspect of the present disclosure, a terminal registration method is provided, which is applied to a terminal, comprising: sending a terminal registration request carrying satellite access indication information to an access management function network element via a satellite and an access network system; and receiving registration acceptance information returned by the access management function network element; wherein the terminal registration acceptance information comprises: QoS information and / or policy information corresponding to a store-and-forward function provided by the satellite.

[0016] In some embodiments, the receiving of registration acceptance information returned by the access management function network element includes: receiving the terminal registration acceptance information sent by the access management function network element through the satellite and the access system.

[0017] In some embodiments, the satellite is configured to provide a store-and-forward function for uplink data of the terminal when the terminal is within the coverage of the satellite and the satellite and the access network system transmit data via a discontinuous feeder link;

[0018] In some embodiments, the satellite access indication information includes: information characterizing the use of satellite access mode, a transmission time slot threshold for data transmission between the terminal and the satellite, and a data volume threshold for data transmission between the terminal and the satellite; the QoS information includes: transmission delay and transmission rate based on satellite access; the policy information includes: data forwarding priority and data retention period based on the satellite access.

[0019] According to a third aspect of the present disclosure, an access management function network element is provided, comprising: a registration request receiving module for receiving a terminal registration request carrying satellite access indication information, sent by a terminal via a satellite and an access network system; a function policy obtaining module for obtaining, based on the satellite access indication information, QoS information and / or policy information corresponding to a store-and-forward function provided by the satellite; and a registration acceptance sending module for sending terminal registration acceptance information to the terminal; wherein the terminal registration acceptance information includes: the QoS information and / or the policy information.

[0020] In some embodiments, the functional policy obtaining module is configured to send the satellite access indication information to a policy function network element; and obtain the QoS information and / or the policy information returned by the policy function network element.

[0021] In some embodiments, the functional policy acquisition module is used to send an access and mobility policy control service establishment message to the policy function network element to establish an access and mobility policy association service with the policy function network element; wherein the information carried by the access and mobility policy control establishment message includes: the satellite access indication information.

[0022] In some embodiments, the functional policy acquisition module is used to receive a response message sent by the policy function network element to the access and mobility policy control service establishment message after the access and mobility policy association service is successfully established; wherein the information carried in the response message includes: the QoS information and / or the policy information.

[0023] In some embodiments, the registration acceptance sending module is used to send the terminal registration acceptance information to the terminal through the access network system and the satellite.

[0024] In some embodiments, the registration request receiving module is configured to receive an N2 message sent by the access network system; wherein the access network system sends the terminal registration request via the N2 message.

[0025] According to a fourth aspect of the present disclosure, an access management function network element is provided, comprising: a memory; and a processor coupled to the memory, wherein the processor is configured to execute the method described above based on instructions stored in the memory.

[0026] According to a fifth aspect of the present disclosure, a terminal is provided, comprising: a registration request module for sending a terminal registration request carrying satellite access indication information to an access management function network element via a satellite and an access network system; a registration receiving module for receiving registration acceptance information returned by the access management function network element; wherein the terminal registration acceptance information comprises: QoS information and / or policy information corresponding to the store-and-forward function provided by the satellite.

[0027] In some embodiments, the registration receiving module is used to receive the terminal registration acceptance information sent by the access management function network element through the satellite and the access system.

[0028] According to a sixth aspect of the present disclosure, a terminal is provided, comprising: a memory; and a processor coupled to the memory, wherein the processor is configured to execute the method described above based on instructions stored in the memory.

[0029] According to a seventh aspect of the present disclosure, a communication system is provided, comprising: a satellite, an access network system, the access management function network element as described above, and the terminal as described above.

[0030] According to an eighth aspect of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the instructions are executed by a processor to perform the method described above.

[0031] According to a ninth aspect of the present disclosure, there is provided a computer program comprising: instructions, which, when executed by a processor, cause the processor to perform the method as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, a brief introduction to the drawings required for use in the embodiments or related technology descriptions will be given below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor. In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, a brief introduction to the drawings required for use in the embodiments or related technology descriptions will be given below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] FIG1 is a flow chart of some embodiments of a terminal registration method according to the present disclosure;

[0034] FIG2 is a schematic diagram of an application scenario of the terminal registration method according to the present disclosure;

[0035] FIG3 is a flow chart of other embodiments of the terminal registration method according to the present disclosure;

[0036] FIG4 is a module diagram of some embodiments of an access management function network element according to the present disclosure;

[0037] FIG5 is a module diagram of another embodiment of an access management function network element according to the present disclosure;

[0038] FIG6 is a module diagram of some embodiments of a terminal according to the present disclosure;

[0039] FIG7 is a module diagram of another embodiment of the terminal according to the present disclosure DETAILED DESCRIPTION

[0040] Exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings. For the sake of clarity and conciseness, not all features of the embodiments are described in the specification. However, it should be understood that many implementation-specific settings must be made in the process of implementing the embodiments in order to achieve the developer's specific goals, such as meeting those restrictions related to equipment and services, and these restrictions may vary depending on the implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is only a routine task for those skilled in the art who benefit from the contents of this disclosure.

[0041] It should be noted that the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

[0042] Those skilled in the art will understand that the terms "first" and "second" in the embodiments of the present disclosure are only used to distinguish different steps, devices or modules, and do not represent any specific technical meanings, nor do they indicate a necessary logical order between them.

[0043] It should also be understood that in the embodiments of the present disclosure, “a plurality of” may refer to two or more than two, and “at least one” may refer to one, two, or more than two.

[0044] It should also be understood that any component, data or structure mentioned in the embodiments of the present disclosure can generally be understood as one or more, unless explicitly limited or otherwise indicated in the context.

[0045] In addition, the term "and / or" in this disclosure is merely a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this disclosure generally indicates that the related objects are in an "or" relationship.

[0046] It should also be understood that the description of the various embodiments in this disclosure focuses on the differences between the various embodiments, and the same or similar aspects thereof can be referenced with each other. For the sake of brevity, they will not be described one by one.

[0047] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0048] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0049] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0050] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0051] In addition, in order to avoid obscuring the present disclosure with unnecessary details, only the processing steps and / or device structures that are closely related to at least the solution according to the present disclosure are shown in the drawings, while other details that are not closely related to the present disclosure are omitted. It should also be noted that similar reference numerals and letters in the drawings indicate similar items, and therefore once an item is defined in one drawing, it does not need to be discussed again for subsequent drawings.

[0052] According to the inventors' knowledge of related technologies, in sparsely populated remote areas, oceans, deserts, and other regions, where it's difficult for terminals to communicate with the outside world via terrestrial mobile networks, direct access to satellite systems can be used to integrate into the internet. Low-orbit satellite internet can meet the comprehensive information and communication needs of voice, data, and video for personnel operations management, emergency support, and mobile communications. Currently, satellite communication services using discontinuous feeder links have been proposed, enabling satellites to implement store-and-forward operations similar to short message services.

[0053] If satellites implement store-and-forward functionality, the need for non-terrestrial network gateways can be reduced to a certain extent, while still achieving global coverage for delay-tolerant services. Satellite communication services using discontinuous feeder links can operate in transparent mode, meaning the satellite performs no data processing and only stores and forwards data. Satellites and access network systems can collaborate to store and receive terminal uplink (UL) data via discontinuous feeder links.

[0054] For example, when the discontinuous feeder link established between the satellite and the access network system is available, the satellite provides a store-and-forward function for data transmission between the terminal and the access network system. As the satellite moves, when the discontinuous feeder link established between the satellite and the access network system becomes unavailable, but the terminal is still within the satellite's coverage area, the satellite receives and stores uplink data sent by the terminal. When the discontinuous feeder link established between the satellite and the access network system becomes available again, the satellite sends the stored uplink data to the access network system, which can then send this uplink data to the core network. The present disclosure provides a terminal registration solution for this store-and-forward scenario (transparent mode service scenario).

[0055] In view of this, a technical problem to be solved by this application is to provide a terminal registration method, which provides a registration method in a scenario where the satellite provides storage and forwarding functions for uplink data. It can realize the authorization of the terminal to use the satellite's storage and forwarding functions for uplink data, and can configure policies and QOS for the terminal's data transmission, which can ensure service quality and improve the user experience.

[0056] FIG1 is a flow chart of some embodiments of the terminal registration method according to the present disclosure, which is applied to an access management function network element, as shown in FIG1 :

[0057] Step 101: Receive a terminal registration request carrying satellite access indication information, which is sent by a terminal via a satellite and an access network system.

[0058] In some embodiments, the terminal may be a mobile phone, tablet computer, etc.; the satellite may be a low-orbit satellite, etc.; the access network system may be a next-generation (wireless) access network, such as a 5G access network system or a 6G access network system; the access management function network element is a network element in the core network system, which may be a 5G core network system or a 6G core network system. The access management function network element may be of various types, such as an access and mobility management function network element (AMF) and a network access control function (NACF). The access management function network element receives a terminal registration request sent by the terminal via the satellite and the access network system. Information carried in the terminal registration request includes satellite access indication information, etc.

[0059] The satellite is used to provide store-and-forward functionality for the terminal's uplink data when the terminal is within the satellite's coverage area and the satellite and access network system are communicating via a discontinuous feeder link. The satellite and access network system can collaborate to establish a discontinuous feeder link to store and receive the terminal's uplink (UL) data.

[0060] A discontinuous feeder link between the satellite and the access network system is sometimes available and sometimes unavailable. The satellite's store-and-forward functionality for terminals can operate in transparent mode, performing only storage and forwarding without processing data.

[0061] When the discontinuous feeder link established between the satellite and the access network system is available and the terminal is within the coverage of the satellite, the satellite provides forwarding function for data transmission between the terminal and the access network system; when the discontinuous feeder link between the satellite and the access network system is unavailable, but the terminal is still within the coverage of the satellite, the satellite receives and stores the uplink data sent by the terminal; when the discontinuous feeder link between the satellite and the access network system is available again, the stored uplink data is sent to the access network system.

[0062] Step 102: Obtain QoS information and / or policy information corresponding to the store-and-forward function according to the satellite access indication information.

[0063] Step 103: Send terminal registration acceptance information to the terminal; wherein the terminal registration acceptance information includes QoS information and / or policy information and other information.

[0064] In some embodiments, after deploying policies related to access and mobility, the access management function network element sends terminal registration acceptance information to the terminal. The terminal registration acceptance information includes QoS information and / or policy information corresponding to the storage and forwarding function configured on the network side.

[0065] The access management function network element can use various methods to send the terminal registration acceptance information to the terminal. For example, the access management function network element can send the terminal registration acceptance information to the terminal via the access network system and the satellite. After receiving the terminal registration acceptance information, the terminal can transmit data to the satellite based on the QoS information and / or policy information.

[0066] The terminal registration method in the above embodiment provides a registration method in a scenario where the satellite provides storage and forwarding functions for uplink data. It can authorize the terminal to use the storage and forwarding functions of the satellite for uplink data, and can configure policies and QOS for the terminal's data transmission, thereby ensuring service quality, improving the user experience, and improving the integrated air-space-ground communication system.

[0067] In some embodiments, the terminal registration request sent by the terminal through the satellite and the access network system carries satellite access indication information, and the satellite access indication information includes information characterizing the use of the satellite access method, the transmission time slot threshold for data transmission between the terminal and the satellite, the data volume threshold for data transmission between the terminal and the satellite, and other information; wherein, the information characterizing the use of the satellite access method is used to indicate that the terminal uses the satellite access method, and may be coding, etc.; the transmission time slot threshold for data transmission between the terminal and the satellite can determine the time slot size that the terminal can tolerate, and the data volume threshold for data transmission between the terminal and the satellite can determine the size and quantity of data that the terminal can transmit after accessing via the satellite.

[0068] A variety of methods can be used to obtain QoS information and policy information for data transmission between the terminal and the satellite. For example, the access management function network element sends satellite access indication information to the policy function network element, and obtains the QoS information and policy information returned by the policy function network element. The policy function network element can be of various types, such as a policy control function network element (Policy Control Function, PCF), etc. Based on the satellite access indication information, the policy function network element configures specific QoS information, policy information and other information for the storage and forwarding function according to pre-configured rules, that is, the policy function network element configures specific QoS information or policy information for the storage and forwarding function, and the policy function network element can also configure specific QoS information and policy information for the storage and forwarding function.

[0069] For example, the access management function network element receives an N2 message sent by the access network system, and the access network system sends a terminal registration request via the N2 message. The access management function network element sends an access and mobility (AM) policy control service establishment message to the policy function network element to establish an access and mobility policy association service with the policy function network element. The information carried in the access and mobility policy control establishment message includes satellite access indication information. After the access and mobility policy association service is successfully established, a response message to the access and mobility policy control service establishment message is received from the policy function network element; the information carried in the response message includes QoS information and / or policy information.

[0070] QoS information can include various types of information, including transmission delay and transmission rate based on satellite access. Transmission delay and transmission rate indicate the guaranteed delay and rate when a terminal accesses a satellite and transmits data. Policy information includes information such as data forwarding priority and data retention period based on satellite access. Data forwarding priority and data retention period indicate the data forwarding priority of various data types when a terminal accesses a satellite and transmits data, as well as the data retention period (retention duration) within the terminal. The access management function network element transmits the configured QoS information and / or policy information to the terminal. The terminal then transmits data to the satellite based on the QoS information and / or policy information to ensure the quality of data transmission.

[0071] FIG2 is a schematic diagram of an application scenario of the terminal registration method according to the present disclosure, wherein the access management function network element is the access and mobility management function network element (AMF), and the policy function network element is the policy control function network element (PCF), as shown in FIG2 :

[0072] Step 201: The terminal sends a registration request message to the (R)AN system via a satellite.

[0073] In some embodiments, the (R)AN system is a (wireless) access network system, and a satellite can transmit data with network elements in the (R)AN system via an NTN gateway. The registration request message can be of various types, such as an AN message. The AN message carries information including AN parameters and registration request information. The registration request information includes information such as satellite access indication information, registration type, and security parameters. The satellite access indication information includes information indicating the satellite access method to be used, a transmission time slot threshold for data transmission between the terminal and the satellite, and a data volume threshold for data transmission between the terminal and the satellite.

[0074] Step 202: The (R)AN system determines an access and mobility management function network element.

[0075] In some embodiments, the (R)AN system may determine the access and mobility management function network element using a variety of related methods. For example, if the registration request message does not include a 5G-S-TMSI (5G S-Temporary Mobile Subscription Identifier) ​​or a GUAMI (Global Unique AMF Identifier), or the 5G-S-TMSI or GUAMI does not indicate a valid access and mobility management function network element, the (R)AN system selects the access and mobility management function network element based on the (R)AT and the requested NSSAI.

[0076] If the terminal is in the CM (Connection Management) connection state, the (R)AN system may forward the registration request message to the access and mobility management function network element based on the terminal's N2 connection. If the (R)AN system cannot select an appropriate access and mobility management function network element, the registration request is forwarded to an access and mobility management function network element that has been configured to perform in the (R)AN system, and this access and mobility management function network element is determined as the selected access and mobility management function network element.

[0077] In step 203, the (R)AN system sends a registration request to the access and mobility management function network element. The registration request message may be an N2 message, which carries information including N2 parameters, registration request information (such as the registration request information in step 201), and other information.

[0078] Step 204: The access and mobility management function network element determines to establish an access and mobility policy association with the policy control function network element based on the local policy.

[0079] In step 205, the access and mobility management function (AMF) sends an Npcf_AMPolicyControl_Create message (Access and Mobility Policy Control Service Establishment message) to the policy control function (PCF) to establish an access and mobility policy association with the policy control function. The Npcf_AMPolicyControl_Create message carries information such as the Subscription Permanent Identifier (SUPI), subscription notification indicator, service area restriction, and satellite access indication information sent by the terminal.

[0080] In step 206, the policy control function network element responds to the Npcf_AMPolicyControl_Create service operation and sends a response message. The policy control function network element provides and configures specific QoS and policy information for the store-and-forward function. The QoS information includes transmission delay and transmission rate based on satellite access; the policy information includes data forwarding priority and data retention period based on satellite access.

[0081] Step 207: The access and mobility management function network element deploys policy information related to access and mobility.

[0082] In some embodiments, the access and mobility management function network element can use a variety of methods to deploy policy information. The access and mobility-related policy information deployed by the access and mobility management function network element includes: data forwarding priority, data retention period, service area restriction associated with storage access and mobility policy, and policy control request trigger; the access and mobility management function network element provides service area restriction to the terminal and provides RFSP index, UE-AMBR, UE slice MBR list, service area restriction for NG-RAN, and notifies the (DNN, S-NSSAI) list and the policy control function network element for UE binding information of the request for SM policy association establishment and termination.

[0083] Step 208: The access and mobility management function network element sends a terminal registration acceptance message to the UE. The terminal registration acceptance message includes: terminal temporary identifier 5G-GUTI, registration area, QoS information, policy information, etc.

[0084] FIG3 is a flow chart of another embodiment of the terminal registration method according to the present disclosure, which is applied to a terminal, as shown in FIG3 :

[0085] Step 301: Send a terminal registration request carrying satellite access indication information to an access management function network element via a satellite and access network system.

[0086] Step 302: Receive registration acceptance information returned by the access management function network element; wherein the terminal registration acceptance information includes QoS information, policy information and other information corresponding to the store-and-forward function.

[0087] In some embodiments, the satellite is configured to provide a store-and-forward function for uplink data of the terminal when the terminal is within the coverage area of ​​the satellite and the satellite and the access network system transmit data via a discontinuous feeder link. Terminal registration acceptance information sent by the access management function network element may be received via the satellite and the access system.

[0088] The terminal registration method disclosed in the present invention provides a registration method in a scenario where the satellite provides a storage and forwarding function for uplink data. It can authorize the terminal to use the storage and forwarding function of the satellite for uplink data, and can configure the data transmission policy and QOS of the terminal to authorize the terminal and enable the storage and forwarding function. It can ensure the service quality, improve the user experience, and improve the integrated air-space-ground communication system.

[0089] In some embodiments, as shown in FIG4 , the present disclosure provides an access management function network element 40, comprising a registration request receiving module 41, a function policy obtaining module 42, and a registration acceptance sending module 43. The registration request receiving module 41 receives a terminal registration request carrying satellite access indication information, sent by a terminal via a satellite and an access network system. The satellite can be used to provide a store-and-forward function for uplink data of the terminal when the terminal is within the coverage area of ​​the satellite and the satellite and the access network system transmit data via a discontinuous feeder link.

[0090] The function policy acquisition module 42 obtains QoS information and / or policy information corresponding to the store-and-forward function based on the satellite access indication information. The registration acceptance sending module 43 sends the terminal registration acceptance information to the terminal; wherein the terminal registration acceptance information includes information such as QoS information and / or policy information.

[0091] In some embodiments, the registration request receiving module 41 receives an N2 message sent by the access network system; the access network system sends the terminal registration request via the N2 message. The function policy obtaining module 42 sends satellite access indication information to the policy function network element and obtains QoS information and / or policy information returned by the policy function network element. The registration acceptance sending module 43 sends a terminal registration acceptance message to the terminal via the access network system and the satellite.

[0092] For example, the functional policy acquisition module 42 sends an access and mobility policy control service establishment message to the policy function network element to establish the access and mobility policy association service with the policy function network element. The information carried in the access and mobility policy control establishment message includes satellite access indication information and other information. After the access and mobility policy association service is successfully established, the functional policy acquisition module 42 receives a response message sent by the policy function network element to the access and mobility policy control service establishment message. The response message includes information such as QoS information and / or policy information.

[0093] In some embodiments, as shown in Figure 5, the access management function network element may include a memory 501, a processor 502, a communication interface 503, and a bus 504. The memory 501 is used to store instructions, and the processor 502 is coupled to the memory 501. The processor 502 is configured to execute the above-mentioned terminal registration method applied to the access management function network element based on the instructions stored in the memory 501.

[0094] Memory 501 may be a high-speed RAM memory, a non-volatile memory, or a memory array. Memory 501 may also be divided into blocks, and the blocks may be combined into virtual volumes according to certain rules. Processor 502 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the terminal registration method for an access management function network element of the present disclosure.

[0095] In some embodiments, as shown in FIG6 , the present disclosure provides a terminal 60 comprising a registration request module 61 and a registration receiving module 62. The registration request module 61 transmits a terminal registration request carrying satellite access indication information to an access management function network element via a satellite and an access network system. The satellite can be used to provide a store-and-forward function for the terminal's uplink data when the terminal is within the satellite's coverage area and the satellite and the access network system transmit data via a discontinuous feeder link. The registration receiving module 62 receives registration acceptance information returned by the access management function network element. The terminal registration acceptance information includes information such as QoS information and / or policy information corresponding to the store-and-forward function. The registration receiving module 62 can receive the terminal registration acceptance information sent by the access management function network element via the satellite and the access system.

[0096] In some embodiments, as shown in Figure 7, the terminal may include a memory 701, a processor 702, a communication interface 703, and a bus 704. The memory 701 is used to store instructions, and the processor 702 is coupled to the memory 701. The processor 702 is configured to execute the above-mentioned terminal registration method applied to the terminal based on the instructions stored in the memory 701.

[0097] Memory 701 can be high-speed RAM, non-volatile memory, or a memory array. Memory 701 can also be divided into blocks, and the blocks can be combined into virtual volumes according to certain rules. Processor 702 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the terminal registration method for a terminal disclosed herein.

[0098] In some embodiments, the present disclosure provides a communication system, comprising: a satellite, an access network system, an access management function network element as in any of the above embodiments, and a terminal as in any of the above embodiments. The communication system may be a variety of communication systems.

[0099] In some embodiments, the present disclosure provides a computer-readable storage medium storing computer instructions. When the instructions are executed by a processor, the method in any of the above embodiments is implemented.

[0100] Computer readable storage media can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium can, for example, include but is not limited to a system, device or component of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination thereof. More specific examples (non-exhaustive enumeration) of readable storage media can include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0101] In some embodiments, the present disclosure provides a computer program, comprising: instructions, which, when executed by a processor, cause the processor to perform the method as described in any of the above embodiments.

[0102] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram and the combination of the processes and / or boxes in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0103] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0104] The embodiments of the present disclosure may also be a computer program product, which includes computer program instructions, which, when executed by a processor, cause the processor to perform the steps of the method according to various embodiments of the present disclosure described in the above “Exemplary Method” section of this specification.

[0105] The terminal registration method, access management function network element, terminal, communication system, storage medium and computer program in the above embodiments provide a registration method in a scenario where the satellite provides storage and forwarding functions for uplink data, which can realize the authorization of the terminal to use the satellite's storage and forwarding functions for uplink data, and can configure the data transmission policy and QOS for the terminal to realize the authorization and enabling of the storage and forwarding functions for the terminal, which can ensure the service quality, improve the user experience, and improve the integrated air-space-ground communication system.

[0106] The basic principles of the present disclosure have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this disclosure are merely illustrative and not restrictive, and should not be construed as necessarily possessed by each embodiment of the present disclosure. Furthermore, the specific details disclosed above are provided for illustrative purposes and to facilitate understanding, rather than as limitations. These details do not limit the present disclosure to necessarily being implemented using these specific details.

[0107] Each embodiment in this specification is described in a progressive manner, with each embodiment focusing on its differences from the other embodiments. References to the same or similar parts between the various embodiments are sufficient. For system embodiments, since they largely correspond to method embodiments, their description is relatively simple. For relevant parts, references to the description of the method embodiments are sufficient.

[0108] The block diagrams of the devices, devices, equipment, and systems involved in this disclosure are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, devices, equipment, and systems can be connected, arranged, or configured in any manner. Words such as "include," "comprise," "have," and the like are open-ended words, meaning "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0109] It should also be noted that in the apparatus, device, and method of the present disclosure, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present disclosure.

[0110] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0111] The above description has been provided for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present disclosure to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, it will be understood by those skilled in the art that the above embodiments are merely illustrative and do not limit the scope of the present disclosure. It will be understood by those skilled in the art that the above embodiments may be combined, modified, or replaced without departing from the scope and essence of the present disclosure.

Claims

1. A terminal registration method, applied to an access management function network element, comprising: receiving a terminal registration request carrying satellite access indication information sent by the terminal via a satellite and access network system; According to the satellite access indication information, obtaining QoS information and / or policy information corresponding to a store-and-forward function provided by the satellite; Sending terminal registration acceptance information to the terminal; wherein the terminal registration acceptance information includes: the QoS information and / or the policy information.

2. The terminal registration method according to claim 1, wherein: The obtaining, according to the satellite access indication information, QoS information and / or policy information for data transmission between the terminal and the satellite comprises: Sending the satellite access indication information to the policy function network element; Obtain the QoS information and / or the policy information returned by the policy function network element.

3. The terminal registration method according to claim 2, wherein: The sending the satellite access indication information to the policy function network element comprises: An access and mobility policy control service establishment message is sent to the policy function network element to establish an access and mobility policy associated service with the policy function network element; wherein the information carried by the access and mobility policy control establishment message includes: the satellite access indication information.

4. The terminal registration method according to claim 3, wherein: The obtaining of the QoS information and / or the policy information returned by the policy function network element includes: After the access and mobility policy association service is successfully established, a response message to the access and mobility policy control service establishment message sent by the policy function network element is received; wherein the information carried in the response message includes: the QoS information and / or the policy information.

5. The terminal registration method according to any one of claims 1 to 4, wherein: The sending terminal registration acceptance information to the terminal comprises: The terminal registration acceptance information is sent to the terminal through the access network system and the satellite.

6. The terminal registration method according to any one of claims 1 to 5, wherein: Receive an N2 message sent by the access network system; wherein the access network system sends the terminal registration request via the N2 message.

7. The terminal registration method according to any one of claims 1 to 6, wherein: The satellite is used to control the terminal to be within the coverage of the satellite, and the satellite is connected to the access network system. When the system transmits data through a discontinuous feeder link, a store-and-forward function is provided for the uplink data of the terminal.

8. The terminal registration method according to any one of claims 1 to 7, wherein: The access network system includes: a 5G access network system and a 6G access network system.

9. The terminal registration method according to any one of claims 1 to 8, wherein: The satellite access indication information includes: information characterizing the use of the satellite access mode, a transmission time slot threshold for data transmission between the terminal and the satellite, and a data volume threshold for data transmission between the terminal and the satellite; The QoS information includes: transmission delay and transmission rate based on the satellite access; The policy information includes: data forwarding priority and data retention period based on the satellite access.

10. A terminal registration method, applied to a terminal, comprising: Sending a terminal registration request carrying satellite access indication information to the access management function network element through the satellite and access network system; Receive registration acceptance information returned by the access management function network element; wherein the terminal registration acceptance information includes: QoS information and / or policy information corresponding to the store-and-forward function provided by the satellite.

11. The terminal registration method according to claim 10, wherein: The receiving of the registration acceptance information returned by the access management function network element includes: The terminal registration acceptance information sent by the access management function network element is received through the satellite and the access system.

12. The terminal registration method according to claim 10 or 11, wherein: The satellite is used to provide a store-and-forward function for uplink data of the terminal when the terminal is located within the coverage of the satellite and the satellite and the access network system perform data transmission via a discontinuous feeder link.

13. The terminal registration method according to any one of claims 10 to 12, wherein: The satellite access indication information includes: information characterizing the use of the satellite access mode, a transmission time slot threshold for data transmission between the terminal and the satellite, and a data volume threshold for data transmission between the terminal and the satellite; The QoS information includes: transmission delay and transmission rate based on the satellite access; The policy information includes: data forwarding priority and data retention period based on the satellite access.

14. An access management function network element, comprising: A registration request receiving module, used to receive a terminal registration request carrying satellite access indication information, sent by the terminal via a satellite and access network system; A function strategy acquisition module, used to obtain QoS information and / or strategy information corresponding to the store-and-forward function provided by the satellite according to the satellite access indication information; The registration acceptance sending module is used to send terminal registration acceptance information to the terminal; wherein the terminal registration acceptance information includes: the QoS information and / or the policy information.

15. The access management function network element according to claim 14, wherein: The functional policy acquisition module is used to send the satellite access indication information to the policy function network element; and obtain the QoS information and / or the policy information returned by the policy function network element.

16. The access management function network element according to claim 14 or 15, wherein: The functional policy acquisition module is used to send an access and mobility policy control service establishment message to the policy function network element to establish an access and mobility policy associated service with the policy function network element; wherein the information carried by the access and mobility policy control establishment message includes: the satellite access indication information.

17. The access management function network element according to claim 16, wherein: The functional policy acquisition module is used to receive a response message sent by the policy function network element to the access and mobility policy control service establishment message after the access and mobility policy association service is successfully established; wherein the information carried in the response message includes: the QoS information and / or the policy information.

18. The access management function network element according to any one of claims 14 to 17, wherein: The registration acceptance sending module is used to send the terminal registration acceptance information to the terminal through the access network system and the satellite.

19. The access management function network element according to any one of claims 14 to 18, wherein: The registration request receiving module is used to receive the N2 message sent by the access network system; wherein the access network system sends the terminal registration request through the N2 message.

20. An access management function network element, comprising: Memory; and a processor coupled to the memory, wherein the processor is configured to execute the method according to any one of claims 1 to 9 based on instructions stored in the memory.

21. A terminal, comprising: A registration request module, used to send a terminal registration request carrying satellite access indication information to an access management function network element through a satellite and access network system; A registration receiving module is used to receive the registration acceptance information returned by the access management function network element; wherein the terminal registration acceptance information includes: QoS information and / or policy information corresponding to the storage and forwarding function provided by the satellite.

22. The terminal according to claim 21, wherein: The registration receiving module is used to receive the terminal registration acceptance information sent by the access management function network element through the satellite and the access system.

23. A terminal, comprising: Memory; and a processor coupled to the memory, the processor being configured to execute the method according to any one of claims 10 to 13 based on instructions stored in the memory.

24. A communication system comprising: A satellite, an access network system, an access management function network element as described in any one of claims 14 to 20, and a terminal as described in any one of claims 21 to 23.

25. The communication system of claim 24, wherein: The satellite is used to provide a store-and-forward function for uplink data of the terminal when the terminal is located within the coverage of the satellite and the satellite and the access network system perform data transmission via a discontinuous feeder link.

26. A computer-readable storage medium storing computer instructions, wherein the instructions are executed by a processor to perform the method according to any one of claims 1 to 13.

27. A computer program comprising: Instructions, when executed by a processor, cause the processor to perform the data transmission method according to any one of claims 1 to 13.

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