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

Abstract

The invention provides a terminal registration method, an access management function network element, a terminal, a communication system and a storage medium. The method applied to the access management function network element comprises the following steps: receiving a terminal registration request which is sent by the terminal through a satellite and an access network system and carries satellite access indication information; obtaining QoS information and / or strategy information corresponding to the store-and-forward function according to the satellite access indication information; sending terminal registration acceptance information to the terminal; wherein the terminal registration acceptance information comprises QoS information and / or strategy information. The invention provides a registration method in a scene in which a satellite provides a storage and forwarding function for uplink data, the terminal can be authorized to use the storage and forwarding function of the satellite for the uplink data, a strategy and QOS can be configured for data transmission of the terminal, the service quality can be ensured, and the use experience of a user is improved.

Description

Technical Field

[0001] The present invention 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 and a storage medium. Background Art

[0002] With the development of mobile communication system technology, the integration technology of non-terrestrial communication platforms represented by satellites and terrestrial communication networks has emerged. In the scenario of non-terrestrial networks (NTN), satellites can provide access services for terminals. At present, satellite communication services using discontinuous feeder links have been proposed. Satellites and access network systems cooperate to store and receive uplink data through discontinuous feeder links to achieve the function of store-and-forward. However, the prior art does not provide a technical solution for terminal registration in this store-and-forward scenario. Summary of the invention

[0003] In view of this, a technical problem to be solved by the present invention is to provide a terminal registration method, an access management function network element, a terminal, a communication system and a storage medium.

[0004] 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, including: receiving a terminal registration request carrying satellite access indication information sent by a terminal via a satellite and an access network system; obtaining QoS information and / or policy information corresponding to a store-and-forward function provided by the satellite according to the satellite access indication information; and sending terminal registration acceptance information to the terminal; wherein the terminal registration acceptance information includes: the QoS information and / or the policy information.

[0005] Optionally, 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 the policy information returned by the policy function network element.

[0006] Optionally, 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 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.

[0007] Optionally, 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.

[0008] Optionally, sending terminal registration acceptance information to the terminal includes: sending the terminal registration acceptance information to the terminal through the access network system and the satellite.

[0009] Optionally, 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.

[0010] Optionally, 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;

[0011] Optionally, the access network system includes: a 5G access network system and a 6G access network system.

[0012] Optionally, 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; the policy information includes: a data forwarding priority and a data retention period based on the satellite access.

[0013] 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 through a satellite and an access network system; 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 storage and forwarding function provided by the satellite.

[0014] Optionally, the receiving 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.

[0015] Optionally, 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;

[0016] Optionally, 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 satellite access; and the policy information includes: a data forwarding priority and a data retention period based on the satellite access.

[0017] According to a third aspect of the present disclosure, an access management function network element is provided, comprising: a registration request receiving module, used to receive a terminal registration request carrying satellite access indication information and sent by a terminal via a satellite and an access network system; a function policy obtaining module, used to obtain, according to the satellite access indication information, QoS information and / or policy information corresponding to a storage and forwarding function provided by the satellite; a registration acceptance sending module, 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.

[0018] Optionally, the functional policy acquisition module is used 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.

[0019] Optionally, 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.

[0020] Optionally, 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.

[0021] Optionally, 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.

[0022] Optionally, the registration request receiving module is used 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.

[0023] 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 as described above based on instructions stored in the memory.

[0024] According to a fifth aspect of the present disclosure, a terminal is provided, comprising: a registration request module, used to send 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, used to 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 storage and forwarding function provided by the satellite.

[0025] Optionally, 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.

[0026] 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 as described above based on instructions stored in the memory.

[0027] According to a seventh aspect of the present disclosure, there is provided a communication system, comprising: a satellite, an access network system, the access management function network element as described above, and the terminal as described above.

[0028] 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 as described above.

[0029] The terminal registration method, access management function network element, terminal, communication system and storage medium disclosed in the present invention provide a registration method in a scenario where the satellite provides a storage and forwarding function for uplink data, which can realize the authorization of the terminal to use the storage and forwarding function of the satellite for uplink data, and can configure policies and QOS for the terminal's data transmission, thereby ensuring service quality and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] By describing the embodiments of the present disclosure in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present disclosure will become more apparent. The accompanying drawings are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. The above and other purposes and advantages of the present disclosure will be further described below in conjunction with specific embodiments and with reference to the accompanying drawings. In the accompanying drawings, the same or corresponding technical features or components will be represented by the same or corresponding figure marks.

[0031] Figure 1 A schematic diagram of a process flow of an embodiment of a terminal registration method according to the present disclosure;

[0032] Figure 2 A schematic diagram of an application scenario of the terminal registration method according to the present disclosure;

[0033] Figure 3 is a flow chart of another embodiment of a terminal registration method according to the present disclosure;

[0034] Figure 4 A schematic diagram of modules of an access management function network element according to an embodiment of the present disclosure;

[0035] Figure 5 A schematic diagram of modules of another embodiment of an access management function network element according to the present disclosure;

[0036] Figure 6 is a schematic diagram of modules of an embodiment of a terminal according to the present disclosure;

[0037] Figure 7 FIG. 4 is a schematic diagram of modules of another embodiment of a terminal according to the present disclosure. DETAILED DESCRIPTION

[0038] Exemplary embodiments of the present disclosure will be described below in conjunction with 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 specific goals of the developer, for example, to meet those restrictions related to the device and the service, 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 content of this disclosure.

[0039] 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.

[0040] Those skilled in the art can understand that the terms "first" and "second" in the embodiments of the present disclosure are only used to distinguish different steps, devices or modules, etc., and neither represent any specific technical meaning nor indicate the necessary logical order between them.

[0041] It should also be understood that in the embodiments of the present disclosure, “plurality” may refer to two or more than two, and “at least one” may refer to one, two, or more than two.

[0042] 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.

[0043] In addition, the term "and / or" in the present disclosure is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present disclosure generally indicates that the associated objects before and after are in an "or" relationship.

[0044] It should also be understood that the description of the various embodiments in the present disclosure focuses on the differences between the various embodiments, and the same or similar aspects thereof can be referenced to each other, and for the sake of brevity, they will not be described one by one.

[0045] 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.

[0046] 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.

[0047] 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 as part of the specification.

[0048] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0049] In addition, in order to avoid obscuring the present disclosure due to unnecessary details, only the processing steps and / or device structures closely related to at least the scheme according to the present disclosure are shown in the drawings, and 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.

[0050] In the related technologies known to the inventor, in remote areas with sparse populations, oceans, deserts and other areas, it is difficult for terminals to communicate with the outside world through ground mobile networks. They can be integrated into the Internet by directly accessing satellite systems. Low-orbit satellite Internet can meet the comprehensive information communication needs of voice, data and video in personnel operation management, emergency support, mobile communications, etc. At present, satellite communication services using discontinuous feeder links have been proposed, and satellites can implement storage and forwarding operations similar to short message services.

[0051] If the satellite implements the store and forward function, the demand for non-terrestrial network gateways can be reduced to a certain extent, while achieving global service coverage of delay-tolerant services. Satellite communication services using discontinuous feeder links can adopt transparent mode services, that is, the satellite does not process the data, but only stores and forwards it. The satellite and access network system can cooperate and store and receive the terminal's uplink UL data through discontinuous feeder links.

[0052] For example, when the discontinuous feeder link established between the satellite and the access network system is available, the satellite provides a storage and forwarding 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 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 established between the satellite and the access network system is available again, the satellite sends the stored uplink data to the access network system, and the access network system can send the uplink data to the core network. The present disclosure provides a terminal registration solution in this storage and forwarding scenario (transparent mode service scenario).

[0053] Figure 1 A flow chart of an embodiment of a terminal registration method according to the present disclosure is applied to an access management function network element, such as Figure 1 As shown:

[0054] Step 101: receiving a terminal registration request carrying satellite access indication information, which is sent by a terminal via a satellite and an access network system.

[0055] In one embodiment, the terminal may be a mobile phone, a 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, a 6G access network system, etc.; the access management function network element is a network element in the core network system, and the core network system may be a 5G core network system, a 6G core network system, etc. The access management function network element may be of various types, such as an access and mobility management function network element (Access and Mobility Management Function, AMF), a network access control network element (Network Access Control Function, NACF), etc. The access management function network element receives a terminal registration request sent by the terminal via the satellite and the access network system, and the information carried by the terminal registration request includes satellite access indication information, etc.

[0056] The satellite is used to provide storage and forwarding functions for the terminal's uplink data when the terminal is within the coverage of the satellite and the satellite and the access network system transmit data through a discontinuous feeder link. The satellite and the access network system can cooperate and store and receive the terminal's uplink UL data by establishing a discontinuous feeder link.

[0057] A non-continuous feeder link refers to a feeder link established between the satellite and the access network system that is sometimes available and sometimes unavailable. The store-and-forward function provided by the satellite to the terminal can be in transparent mode, without processing the data, only performing storage and forwarding processing.

[0058] 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 a 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.

[0059] Step 102: Obtain QoS information and / or policy information corresponding to the store-and-forward function according to the satellite access indication information.

[0060] 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.

[0061] In one embodiment, after deploying access and mobility related policies, the access management function network element sends terminal registration acceptance information to the terminal, and the terminal registration acceptance information includes QoS information and / or policy information corresponding to the storage and forwarding function configured on the network side.

[0062] The access management function network element may use a variety of methods to send the terminal registration acceptance information to the terminal. For example, the access management function network element sends the terminal registration acceptance information to the terminal through the access network system and the satellite. After the terminal receives the terminal registration acceptance information, it may perform data transmission with the satellite according to the QoS information and / or policy information.

[0063] 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, which can realize the authorization of the terminal to use the storage and forwarding function of the satellite for uplink data, and can configure policies and QOS for the terminal's data transmission, thereby ensuring service quality, improving user experience, and improving the integrated air-ground-space communication system.

[0064] In one embodiment, a terminal registration request sent by a terminal through a satellite and an access network system carries satellite access indication information, and 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, a data volume threshold for data transmission between the terminal and the satellite, and other information; wherein, the information characterizing the use of a satellite access method is used to indicate that the terminal uses a satellite access method, and may be coding, etc.; the transmission time slot threshold for data transmission between the terminal and the satellite may determine a time slot size that the terminal can tolerate, and the data volume threshold for data transmission between the terminal and the satellite may determine the size and amount of data that the terminal can transmit after accessing the terminal through the satellite.

[0065] 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. There can be many types of policy function network elements, such as a policy control function network element (Policy Control Function, PCF), etc. The policy function network element configures specific QoS information, policy information and other information for the storage and forwarding function based on the satellite access indication information and 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. The policy function network element can also configure specific QoS information and policy information for the storage and forwarding function.

[0066] For example, the access management function network element receives the N2 message sent by the access network system, and the access network system sends a terminal registration request through 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 sent by the policy function network element is received; wherein the information carried in the response message includes: QoS information and / or policy information.

[0067] QoS information can be a variety of information, including transmission delay and transmission rate based on satellite access; transmission delay and transmission rate are used to indicate the delay and rate that need to be guaranteed when the terminal accesses the satellite and performs data transmission. Policy information includes: data forwarding priority and data retention period based on satellite access. Data forwarding priority and data retention period are used to indicate the data forwarding priority of various data when the terminal accesses the satellite and performs data transmission, as well as the data retention period (retention duration) of the data in the terminal. The access management function network element will send the configured QoS information and / or policy information to the terminal, and the terminal will perform data transmission with the satellite based on the QoS information and / or policy information to ensure the quality of data transmission.

[0068] Figure 2 Schematic diagram of an application scenario of the terminal registration method according to the present disclosure, wherein the access management function network element is an access and mobility management function network element (AMF), and the policy function network element is a policy control function network element (PCF), such as Figure 2 As shown:

[0069] Step 201: The terminal sends a registration request message to the (R)AN system via a satellite.

[0070] In one embodiment, the (R)AN system is a (wireless) access network system, and the satellite can transmit data with the network element in the (R)AN system through the NTN gateway. The registration request message can be of various types, such as an AN message, and the information carried by the AN message includes AN parameters, registration request information, etc. The registration request information includes: satellite access indication information, registration type, security parameters and other information; the satellite access indication information includes information characterizing the use of satellite access mode, the transmission time slot threshold for data transmission between the terminal and the satellite, and the data volume threshold for data transmission between the terminal and the satellite.

[0071] Step 202: The (R)AN system determines the access and mobility management functional network element.

[0072] In one embodiment, the (R)AN system may determine the access and mobility management function network element using a variety of existing methods. For example, if the registration request message does not include 5G-S-TMSI (5GS-Temporary Mobile Subscription Identifier) ​​or GUAMI (Global Unique AMF Identifier), or 5G-S-TMSI or GUAMI does not indicate a valid access and mobility management function network element, the (R)AN system based on the (R)AT and the requested NSSAI selects the access and mobility management function network element.

[0073] If the terminal is in a 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 N2 connection of the terminal. If the (R)AN system cannot select an appropriate access and mobility management function network element, the registration request is forwarded to the access and mobility management function network element that has been configured to execute 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.

[0074] 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, and the information carried by the N2 message includes N2 parameters, registration request information (such as the registration request information in step 201), and other information.

[0075] 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.

[0076] Step 205, the access and mobility management function network element sends an Npcf_AMPolicyControl_Create message (access and mobility policy control service establishment message) to the policy control function network element to establish an access and mobility policy association with the policy control function network element. The information carried in the access and mobility policy control service establishment message includes: SUPI (Subscription Permanent Identifier, user permanent identifier), subscription notification indication and service area restriction, as well as satellite access indication information sent by the terminal and other information.

[0077] 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 storage and forwarding function. The QoS information includes the transmission delay and transmission rate based on satellite access; the policy information includes the data forwarding priority and data retention period based on satellite access.

[0078] Step 207: The access and mobility management function network element deploys policy information related to access and mobility.

[0079] In one embodiment, 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, storage access and mobility policy associated service area restrictions and policy control request triggers, etc.; the access and mobility management function network element provides service area restrictions to the terminal and provides RFSP index, UE-AMBR, UE slice MBR list, service area restrictions 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.

[0080] Step 208: The access and mobility management function network element sends terminal registration acceptance information to the UE. The terminal registration acceptance information includes: terminal temporary identifier 5G-GUTI, registration area, QoS information, policy information, etc.

[0081] Figure 3 FIG. 1 is a flow chart of another embodiment of a terminal registration method according to the present disclosure, which is applied to a terminal, such as Figure 3 As shown:

[0082] 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.

[0083] 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.

[0084] In one embodiment, the satellite is used to provide a storage and forwarding function for the 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. The terminal registration acceptance information sent by the access management function network element can be received by the satellite and the access system.

[0085] 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, which can realize the authorization of the terminal to use the storage and forwarding function of the satellite for uplink data, and can configure the data transmission strategy and QOS of the terminal to realize the authorization and enablement of the storage and forwarding function of the terminal, which can ensure the service quality, improve the user experience, and improve the integrated space-ground-ground communication system.

[0086] In one embodiment, Figure 4As shown, the present disclosure provides an access management function network element 40, including 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 the terminal via a satellite and an access network system; wherein the satellite can be used to provide a storage and forwarding function for the uplink data of the terminal when the terminal is within the coverage of the satellite and the satellite and the access network system perform data transmission via a discontinuous feeder link.

[0087] The function policy acquisition module 42 acquires QoS information and / or policy information corresponding to the store-and-forward function according to the satellite access indication information. The registration acceptance sending module 43 sends terminal registration acceptance information to the terminal; wherein the terminal registration acceptance information includes information such as QoS information and / or policy information.

[0088] In one embodiment, the registration request receiving module 41 receives the N2 message sent by the access network system; wherein the access network system sends the terminal registration request via the N2 message. The function policy obtaining module 42 sends the satellite access indication information to the policy function network element, and obtains the QoS information and / or policy information returned by the policy function network element. The registration acceptance sending module 43 sends the terminal registration acceptance information to the terminal via the access network system and the satellite.

[0089] 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 an access and mobility policy association service with the policy function network element, and 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 to the access and mobility policy control service establishment message sent by the policy function network element; wherein the information carried in the response message includes: QoS information and / or policy information and other information.

[0090] In one embodiment, Figure 5 As shown, 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, the processor 502 is coupled to the memory 501, and 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.

[0091] The memory 501 may be a high-speed RAM memory, a non-volatile memory, etc. The memory 501 may also be a memory array. The memory 501 may also be divided into blocks, and the blocks may be combined into virtual volumes according to certain rules. The processor 502 may be a central processing unit CPU, or an application specific integrated circuit ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the terminal registration method for the access management function network element of the present disclosure.

[0092] In one embodiment, Figure 6 As shown, the present disclosure provides a terminal 60, including: a registration request module 61 and a registration receiving module 62. The registration request module 61 sends a terminal registration request carrying satellite access indication information to the access management function network element through the satellite and the access network system; wherein the satellite can be used to provide a storage and forwarding function for the uplink data of the terminal when the terminal is located within the coverage of the satellite and the satellite and the access network system transmit data through a discontinuous feeder link. The registration receiving module 62 receives 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 and other information. The registration receiving module 62 can receive the terminal registration acceptance information sent by the access management function network element through the satellite and the access system.

[0093] In one embodiment, Figure 7 As shown, 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, the processor 702 is coupled to the memory 701, and 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.

[0094] The memory 701 may be a high-speed RAM memory, a non-volatile memory, etc., and the memory 701 may also be a memory array. The memory 701 may also be divided into blocks, and the blocks may be combined into virtual volumes according to certain rules. The processor 702 may be a central processing unit CPU, or an application specific integrated circuit ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the terminal registration method applied to the terminal of the present disclosure.

[0095] In one embodiment, the present disclosure provides a communication system, including: 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.

[0096] In one embodiment, the present disclosure provides a computer-readable storage medium storing computer instructions, which implement the method in any of the above embodiments when the instructions are executed by a processor.

[0097] 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 include, for example, but is not limited to, a system, device or device of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination of the above. 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 of the above.

[0098] The embodiments of the present disclosure may also be a computer program product, which includes computer program instructions, which, when executed by a processor, enable the processor to execute the steps of the method according to various embodiments of the present disclosure described in the above “Exemplary Method” section of this specification.

[0099] The terminal registration method, access management function network element, terminal, communication system and storage medium in the above-mentioned 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 policies and QOS for the terminal's data transmission, realize terminal authorization and enablement of storage and forwarding functions, which can ensure service quality, improve user experience, and improve the integrated air-ground-space communication system.

[0100] The basic principles of the present disclosure are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present disclosure are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present disclosure. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, and are not limitations. The above details do not limit the present disclosure to the necessity of adopting the above specific details to be implemented.

[0101] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the system embodiment, since it basically corresponds to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0102] The block diagrams of the devices, apparatuses, equipment, and systems involved in this disclosure are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including," "comprising," "having," and the like are open words, referring to "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.

[0103] 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.

[0104] 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 the widest scope consistent with the principles and novel features disclosed herein.

[0105] The above description has been given 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 multiple example aspects and embodiments have been discussed above, it will be appreciated 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 appreciated 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 method of 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 method of 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 method of 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 method of claim 1, 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 method of claim 1, 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 method of claim 1, 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.

8. The 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 method according to any one of claims 1 to 7, 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 method of 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 method of claim 10, 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 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, 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 claim 14, 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 claim 14, 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.

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