Wireless communication method, and device and storage medium

Abstract

Provided in the present application are a wireless communication method, and a device and a storage medium. The method comprises: a terminal device receiving first information or sending second information, wherein the first information or the second information is configured to determine whether a first cell of a first satellite allows camping and / or access by the terminal device; the first information is related to a store-and-forward architecture supported by the first satellite; the second information is related to a store-and-forward architecture of a satellite supported by the terminal device; and the store-and-forward architecture is related to a core network function supported by the satellite in a store-and-forward mode.

Description

Method and device for wireless communication, and storage medium TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of mobile communication, in particular to a method and device for wireless communication, and a storage medium. BACKGROUND

[0002] The store-and-forward mode refers to that a service link of a satellite service user in an NTN network and a feeder link between the satellite and a ground gateway are not available at the same time, so the satellite needs to store the transmitted data when one of the links is connected, and forward the data when the other link is connected, which can reduce the cost of deploying the ground gateway and improve the deployment flexibility, i.e., the ground gateway does not need to be deployed in an area close to the user.

[0003] SUMMARY

[0004] Embodiments of the present application provide a method and device for wireless communication, and a storage medium.

[0005] The method for wireless communication provided by the embodiments of the present application comprises:

[0006] The terminal device receives first information or sends second information, the first information or the second information being used to determine whether a first cell of a first satellite allows camping and / or access of the terminal device;

[0007] The first information is related to a store-and-forward architecture supported by the first satellite, and the second information is related to a store-and-forward architecture of a satellite supported by the terminal device;

[0008] The store-and-forward architecture is related to a core network function supported by the satellite in a store-and-forward mode.

[0009] The method for wireless communication provided by the embodiments of the present application comprises:

[0010] The first satellite sends first information or receives second information, the first information or the second information being used to determine whether a first cell of a first satellite allows camping and / or access of the terminal device;

[0011] The first information is related to a store-and-forward architecture supported by the first satellite, and the second information is related to a store-and-forward architecture of a satellite supported by the terminal device;

[0012] The store-and-forward architecture is related to a core network function supported by the satellite in a store-and-forward mode.

[0013] The terminal device provided by the embodiments of the present application comprises:

[0014] The first communication unit is configured to receive first information or send second information, the first information or the second information being used to determine whether a first cell of a first satellite allows camping and / or access of the terminal device;

[0015] The first information is related to a store-and-forward architecture supported by the first satellite, and the second information is related to a store-and-forward architecture of a satellite supported by the terminal device;

[0016] The store-and-forward architecture is related to core network functions supported by a satellite in a store-and-forward mode.

[0017] The first satellite provided by an embodiment of the present application includes:

[0018] The second communication unit is configured to send first information or receive second information, the first information or the second information being used to determine whether a first cell of a first satellite allows camping and / or access of the terminal device;

[0019] The first information is related to a store-and-forward architecture supported by the first satellite, and the second information is related to a store-and-forward architecture of a satellite supported by the terminal device;

[0020] The store-and-forward architecture is related to core network functions supported by a satellite in a store-and-forward mode.

[0021] The communication device provided by an embodiment of the present application can be the terminal device in the above scheme or the first satellite in the above scheme, and the communication device includes a transceiver, a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and cooperate with the transceiver to execute the wireless communication method.

[0022] The chip provided by an embodiment of the present application is used to implement the wireless communication method.

[0023] Specifically, the chip includes a processor, which is used to call and run a computer program from a memory, so that a device installed with the chip executes the wireless communication method.

[0024] The computer readable storage medium provided by an embodiment of the present application is used to store a computer program, and the computer program causes a computer to execute the wireless communication method.

[0025] The computer program product provided by an embodiment of the present application includes computer program instructions, and the computer program instructions cause a computer to execute the wireless communication method.

[0026] The computer program provided by an embodiment of the present application, when running on a computer, causes the computer to execute the wireless communication method.

[0027] By the technical solution, the terminal device transmits the first information related to the store-and-forward architecture supported by the first satellite or the second information related to the store-and-forward architecture supported by the terminal device to the first satellite, which helps the terminal device to more accurately access a cell of the store-and-forward architecture supported by the terminal device to complete registration and data transmission. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0029] FIG. 1 is a schematic diagram of an application scenario of an embodiment of the application;

[0030] FIG. 2 is a schematic diagram of an architecture of another communication system provided by an embodiment of the application;

[0031] FIG. 3 is a schematic diagram of an architecture of another communication system provided by an embodiment of the application;

[0032] FIG. 4 is a schematic diagram of an NTN scenario based on a transparent forwarding satellite provided by an embodiment of the application;

[0033] FIG. 5 is a schematic diagram of an NTN scenario based on a regenerative forwarding satellite provided by an embodiment of the application;

[0034] FIG. 6 is a schematic diagram of an optional structure of an NTN system provided by an embodiment of the application;

[0035] FIG. 7 is a schematic diagram of an optional structure of an NTN system provided by an embodiment of the application

[0036] FIG. 8 is a schematic diagram of an optional process of a wireless communication method provided by an embodiment of the application;

[0037] FIG. 9 is a schematic diagram of an optional process of a wireless communication method provided by an embodiment of the application;

[0038] FIG. 10 is a schematic diagram of an optional process of a wireless communication method provided by an embodiment of the application;

[0039] FIG. 11 is a schematic diagram of an optional process of a wireless communication method provided by an embodiment of the application;

[0040] FIG. 12 is a schematic diagram of an optional process of a wireless communication method provided by an embodiment of the application;

[0041] FIG. 13 is a schematic diagram of an optional process of a wireless communication method provided by an embodiment of the application;

[0042] FIG. 14 is a schematic diagram of an optional process of a wireless communication method provided by an embodiment of the application;

[0043] FIG. 15 is an optional flow diagram of a wireless communication method according to an embodiment of the present application;

[0044] FIG. 16 is an optional flow diagram of a wireless communication method according to an embodiment of the present application;

[0045] FIG. 17 is an optional flow diagram of a wireless communication method according to an embodiment of the present application;

[0046] FIG. 18 is an optional flow diagram of a wireless communication method according to an embodiment of the present application;

[0047] FIG. 19 is an optional flow diagram of a wireless communication method according to an embodiment of the present application

[0048] FIG. 20 is an optional structure diagram of a terminal device according to an embodiment of the present application;

[0049] FIG. 21 is an optional structure diagram of a first satellite according to an embodiment of the present application;

[0050] FIG. 22 is an optional structure diagram of a communication device according to an embodiment of the present application;

[0051] FIG. 23 is an optional structure diagram of a chip according to an embodiment of the present application;

[0052] FIG. 24 is an optional structure diagram of a communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0054] The communication system scenario includes a terrestrial network (TN) and an NTN. The NTN generally provides communication services to ground users in a satellite communication manner. The NTN system currently includes an NR-NTN and an IoT-NTN system, and may further include other NTN systems in the future.

[0055] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present application. As shown in FIG. 1, the communication system 100 can include a terminal device 110 and a network device 120. The network device 120 can communicate with the terminal device 110 through an air interface. The terminal device 110 and the network device 120 support multiple service transmissions.

[0056] It should be understood that the embodiments of the present application are only exemplarily described with respect to the communication system 100, but the embodiments of the present application are not limited thereto. That is, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as a Long Term Evolution (LTE) system, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunication System (UMTS), an Internet of Things (IoT) system, a Narrow Band Internet of Things (NB-IoT) system, an enhanced Machine-Type Communications (eMTC) system, a 5G communication system (also referred to as a New Radio (NR) communication system), or a future communication system, etc.

[0057] In the communication system 100 shown in FIG. 1, the network device 120 can be an access network device that communicates with the terminal device 110. The access network device can provide communication coverage for a specific geographic area and can communicate with the terminal device 110 (e.g., a UE) located in the coverage area.

[0058] The network device 120 can be an Evolutional Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a radio controller in a Cloud Radio Access Network (CRAN), or a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved Public Land Mobile Network (PLMN), etc.

[0059] The terminal device 110 can be any terminal device, including but not limited to a terminal device that uses a wired or wireless connection with the network device 120 or other terminal devices.

[0060] For example, the terminal device 110 can refer to an access terminal, a user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal can be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, an IoT device, a satellite phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having wireless communication functions, a computing device, or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved network, and the like.

[0061] The terminal device 110 can be used for Device to Device (D2D) communication.

[0062] The wireless communication system 100 can further include a core network device 130 in communication with the base station, which can be a 5G core network (5GC) device, for example, an Access and Mobility Management Function (AMF), for another example, an Authentication Server Function (AUSF), for another example, a User Plane Function (UPF), for another example, a Session Management Function (SMF). Alternatively, the core network device 130 can also be an Evolved Packet Core (EPC) device of an LTE network, for example, a Session Management Function + Core Packet Gateway (SMF + PGW-C) device. It should be understood that the SMF + PGW-C can simultaneously implement the functions that can be implemented by the SMF and the PGW-C. In the process of network evolution, the above-mentioned core network device can also be called by other names, or new network entities can be formed by dividing the functions of the core network, and the embodiments of the present application do not limit this.

[0063] The various functional units in the communication system 100 can also be connected and communicate through a next generation (NG) interface.

[0064] For example, a terminal device establishes an air interface connection with an access network device through a Uu interface, for transmission of user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with an AMF through an NG interface 1 (N1 for short); an access network device, such as a next generation wireless access base station (gNB), can establish a user plane data connection with a UPF through an NG interface 3 (N3 for short); the access network device can establish a control plane signaling connection with the AMF through an NG interface 2 (N2 for short); the UPF can establish a control plane signaling connection with an SMF through an NG interface 4 (N4 for short); the UPF can exchange user plane data with a data network through an NG interface 6 (N6 for short); the AMF can establish a control plane signaling connection with the SMF through an NG interface 11 (N11 for short); the SMF can establish a control plane signaling connection with a PCF through an NG interface 7 (N7 for short).

[0065] FIG. 1 exemplarily shows one base station, one core network device, and two terminal devices. Optionally, the wireless communication system 100 can include multiple base station devices and each base station can include other numbers of terminal devices within its coverage, which are not limited in the embodiments of the present application.

[0066] NTN generally provides communication services to ground users in the manner of satellite communication. Compared with ground cellular network communication, satellite communication has many unique advantages. First, satellite communication is not limited by the user's region. For example, general terrestrial communication cannot cover oceans, high mountains, deserts, and other areas where communication equipment cannot be set up or where communication coverage cannot be provided due to sparse population. However, for satellite communication, since a satellite can cover a large area of the ground, and the satellite can orbit the earth, in theory, every corner of the earth can be covered by satellite communication. Second, satellite communication has great social value. Satellite communication can cover remote mountainous areas, poor countries or regions at a low cost, so that people in these areas can enjoy advanced voice communication and mobile Internet technology, which is conducive to narrowing the digital gap with developed areas and promoting the development of these areas. Third, satellite communication has a long distance, and the cost of communication does not increase significantly as the communication distance increases. Finally, satellite communication has high stability and is not limited by natural disasters.

[0067] NTN technology can be combined with various communication systems. For example, NTN technology can be combined with an NR system to form an NR-NTN system. For another example, NTN technology can be combined with an Internet of Things (IoT) system to form an IoT-NTN system. As an example, an IoT-NTN system can include an NB-IoT-NTN system and an eMTC-NTN system.

[0068] FIG. 2 is a schematic diagram of an architecture of another communication system according to embodiments of the present application.

[0069] As shown in FIG. 2, the communication system includes a terminal device 1101 and a satellite 1102, and the terminal device 1101 and the satellite 1102 can perform wireless communication. The network formed by the terminal device 1101 and the satellite 1102 can also be referred to as an NTN. In the architecture of the communication system shown in FIG. 2, the satellite 1102 can have the function of a base station, and the terminal device 1101 and the satellite 1102 can directly communicate with each other. In the architecture of the system, the satellite 1102 can be referred to as a network device. In some embodiments of the present application, multiple network devices 1102 can be included in the communication system, and each network device 1102 can include a certain number of terminal devices within its coverage, which is not limited in the embodiments of the present application.

[0070] FIG. 3 is a schematic diagram of an architecture of another communication system according to embodiments of the present application.

[0071] As shown in FIG. 3, the communication system includes a terminal device 1201, a satellite 1202 and a base station 1203, and the terminal device 1201 and the satellite 1202 can perform wireless communication, and the satellite 1202 and the base station 1203 can communicate with each other. The network formed by the terminal device 1201, the satellite 1202 and the base station 1203 can also be referred to as an NTN. In the architecture of the communication system shown in FIG. 3, the satellite 1202 can not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be relayed through the satellite 1202. In this architecture of the system, the base station 1203 can be referred to as a network device. In some embodiments of the present application, multiple network devices 1203 can be included in the communication system, and each network device 1203 can include a certain number of terminal devices within its coverage, which is not limited in the embodiments of the present application. The network device 1203 can be the network device 120 in FIG. 1.

[0072] It should be understood that the above-mentioned satellite 1102 or satellite 1202 includes but is not limited to:

[0073] Low-Earth Orbit (LEO) satellites, Medium-Earth Orbit (MEO) satellites, Geostationary Earth Orbit (GEO) satellites, High Elliptical Orbit (HEO) satellites, etc. The satellite can use multiple beams to cover the ground, for example, a satellite can form dozens or even hundreds of beams to cover the ground. In other words, one satellite beam can cover a ground area with a diameter of dozens to hundreds of kilometers to ensure the coverage of the satellite and improve the system capacity of the entire satellite communication system.

[0074] As an example, the altitude range of the LEO satellite can be 500 km-1500 km, the corresponding orbit period can be about 1.5 hours-2 hours, the signal propagation delay of single-hop communication between users can generally be less than 20 milliseconds, the maximum satellite visible time can be 20 minutes, the signal propagation distance of the LEO satellite is short and the link loss is small, and the transmission power requirement of the user terminal is not high. The orbit altitude of the GEO satellite can be 35786 km, the rotation period around the earth can be 24 hours, and the signal propagation delay of single-hop communication between users can generally be 250 milliseconds.

[0075] In order to ensure the coverage of the satellite and improve the system capacity of the entire satellite communication system, the satellite adopts multi-beam to cover the ground, and a satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover a ground area with a diameter of dozens to hundreds of kilometers.

[0076] It should be noted that FIGS. 1-3 are only schematic in the form of examples of the system to which the present application is applied, and of course, the method shown in the embodiments of the present application can also be applied to other systems. In addition, the terms "system" and "network" are often used interchangeably in this paper. The term "and / or" in this paper is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents an "or" relationship between the front and rear associated objects. It should also be understood that the "indication" mentioned in the embodiments of the present application can be direct indication or indirect indication, and can also represent an associated relationship. For example, A indicates B, which can mean that B can be obtained through A; or it can mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; or it can mean that A and B have an associated relationship. It should also be understood that "corresponding" mentioned in the embodiments of the present application can mean a direct correspondence or an indirect correspondence between the two, or it can mean an associated relationship between the two, or it can mean an indication and being indicated, configuration and being configured, etc. It should also be understood that "predefined" or "predefined rule" mentioned in the embodiments of the present application can be realized by pre-saving the corresponding code, table or other means that can be used to indicate related information in the device (for example, including terminal equipment and network equipment), and the specific implementation manner of the present application is not limited. For example, the predefinition can mean the definition in the protocol. It should also be understood that in the embodiments of the present application, the "protocol" can mean a standard protocol in the communication field, which can include the LTE protocol, the NR protocol and the related protocol applied to the future communication system, and the present application is not limited thereto.

[0077] Satellites can be divided into two types according to the functions they provide: transparent payload and regenerative payload. For transparent payload satellites, only the functions of radio frequency filtering, frequency conversion and amplification are provided, and only the transparent forwarding of signals is provided, without changing the waveform signals forwarded. For regenerative payload satellites, in addition to the functions of radio frequency filtering, frequency conversion and amplification, the functions of demodulation / decoding, routing / conversion, and encoding / modulation can also be provided, which have part or all of the functions of a base station.

[0078] In the NTN, one or more gateways can be included for communication between the satellite and the terminal.

[0079] Figures 4 and 5 respectively show schematic diagrams of NTN scenarios based on transparent payload satellites and regenerative payload satellites.

[0080] As shown in Figure 4, for the NTN scenario based on transparent payload satellites, the gateway and the satellite communicate through the feeder link, and the satellite and the terminal can communicate through the service link. As shown in Figure 5, for the NTN scenario based on regenerative payload satellites, the satellite and the satellite communicate through the inter-satellite link, the gateway and the satellite communicate through the feeder link, and the satellite and the terminal can communicate through the service link.

[0081] To facilitate understanding of the technical solutions of the embodiments of the present application, the related technologies of the embodiments of the present application are described below. The following related technologies can be combined with the technical solutions of the embodiments of the present application in any manner, and all belong to the protection scope of the embodiments of the present application.

[0082] Currently, with the pursuit of speed, delay, high mobility, energy efficiency, and the diversity and complexity of future life services, the 3GPP international standard organization has begun to develop 5G. The main application scenarios of 5G are: enhanced mobile broadband (eMBB), low latency and high reliability communication (URLLC), and large-scale machine type communication (mMTC).

[0083] NR can also be deployed independently. In order to reduce air signaling and quickly recover wireless connections and data services in the 5G network environment, a new RRC state, RRC deactivation state (RRC_INACTIVE state), is defined. This state is different from the RRC idle state (RRC_IDLE state) and the RRC active (RRC_ACTIVE) state.

[0084] RRC_IDLE: mobility is cell selection / reselection based on UE, paging is initiated by CN, paging area is configured by CN. No UE AS context is stored in the base station. No RRC connection exists.

[0085] RRC_CONNECTED: RRC connection exists, the base station and the UE have UE AS context. The network is aware of the location of the UE at a particular cell level. Mobility is network-controlled mobility. Unicast data can be transmitted between the UE and the base station.

[0086] RRC_INACTIVE: mobility is cell selection / reselection based on UE, connection between CN and NR exists, UE AS context exists on a certain base station, paging is triggered by RAN, RAN-based paging area is managed by RAN, and the network is aware of the location of the UE at a RAN-based paging area level.

[0087] The store-and-forward mode of the satellite refers to that both the service link of the NTN network and the feeder link between the satellite and the ground gateway are not available at the same time, so the satellite needs to store the transmitted data when one of the links is connected and forward the data when the other link is connected, which can reduce the cost of deploying the ground gateway and improve the deployment flexibility, i.e., the ground gateway does not need to be deployed in an area close to the user. This mode is suitable for services that are not sensitive / strict to time delay.

[0088] FIGS. 6 and 7 are schematic diagrams of the ordinary satellite working mode and the store-and-forward satellite working mode, respectively.

[0089] As shown in the ordinary satellite working mode in FIG. 6, the signaling / data interaction between the UE and the ground network through the satellite requires that the service link and the feeder link are available at the same time, so the end-to-end connection between the UE and the ground network through the satellite is continuous.

[0090] As shown in the store-and-forward working mode in FIG. 7, the service link and the feeder link cannot be available at the same time, and the signaling / data interaction between the UE and the ground network through the satellite includes the following two steps:

[0091] Step A: signaling / data interaction between the UE and the satellite through the service link, at this time, the feeder link between the satellite and the ground network is not established; wherein, as the satellite moves away from the UE, the satellite disconnects the service link between the UE and the satellite.

[0092] Step B: when the satellite flies over the ground network, the satellite establishes a connection with the ground network, so that the satellite and the ground network communicate through the feeder link.

[0093] In the LTE system, a cellBarred indication is broadcasted in the system information block (SIB) 1 (or Master Information Block (MIB) in the NR system), which is used to indicate whether the current cell is allowed to access. In the NTN system, the network side implicitly determines the network type of the cell through the existence of the cellBarredNTN applied to the NTN in the SIB1, that is, whether the cell can be used for NTN connection can be determined through the cellBarredNTN in the SIB1. The NTN-capable UE obtains the SIB1 when performing cell selection, and then judges whether the corresponding cell supports NTN connection through the cellbarredNTN in the SIB1. If the cellbarredNTN is barred or the SIB1 does not contain the cellbarredNTN, the NTN-capable UE considers that the cell is in a barred state.

[0094] In the related art, two core network on-board architectures are introduced in the &F mode: architecture 1, split MME architecture (partial MME on-board), and architecture 2, full CN on-board.

[0095] For architecture 1: split MME architecture, the HSS is on the ground, and the MME function is divided into two parts: MME-onboard (MME on the satellite) and MME-ground (MME on the ground network). When the service link is available and the feeder link is unavailable, the UE initiates an ATTACH or TAU request message, and the MME-onboard sends an ATTACH or TAU rejection message to the UE and retains the information in the ATTACH / TAU request message in the MME-onboard. When the feeder link becomes available, the MME-onboard communicates with the MME-ground and the ground HSS to complete the registration of the core network to the UE. The MME-ground sends the ATTACH / TAU message to the MME-onboard and caches it in the MME-onboard. When the service link is available again, the MME-onboard sends the ATTACH / TAU message to the UE, and the UE completes the registration process.

[0096] For architecture 2, full CN onboard, all core networks are carried on the satellite, including MME, SGW, PGW, HSS, E-SMLC, SMSC, and the like.

[0097] In the related art, the store-and-forward mode can support the above two architectures, and the problem of how the terminal device identifies and accesses the network under different networking architectures needs to be solved.

[0098] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined with the technical solutions of the embodiments of the present application as optional solutions, which all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0099] The embodiments of the present application provide a wireless communication method, which is applied to a terminal device, as shown in FIG. 8, and includes the following steps.

[0100] S801, the terminal device receives first information or sends second information, the first information or the second information is used to determine whether the first cell of the first satellite allows camping and / or access of the terminal device; the first information is related to a store-and-forward architecture supported by the first satellite, and the second information is related to a store-and-forward architecture of a satellite supported by the terminal device; the store-and-forward architecture is related to core network functions supported by the satellite in a store-and-forward mode.

[0101] The embodiments of the present application provide a wireless communication method, which is applied to a first satellite, as shown in FIG. 9, and includes the following steps.

[0102] S901, the first satellite sends first information or receives second information, the first information or the second information is used to determine whether the first cell of the first satellite allows camping and / or access of the terminal device; the first information is related to a store-and-forward architecture supported by the first satellite, and the second information is related to a store-and-forward architecture of a satellite supported by the terminal device; the store-and-forward architecture is related to core network functions supported by the satellite in a store-and-forward mode.

[0103] The embodiments of the present application provide a wireless communication method, which is applied to a wireless communication system including a terminal device and a first satellite, as shown in FIG. 10 or 11, and includes the following steps.

[0104] The terminal device receives first information sent by the first satellite, or the terminal device sends second information to the first satellite.

[0105] The first information or the second information is used to determine whether the first cell of the first satellite allows camping and / or access of the terminal device; the first information relates to a store-and-forward architecture supported by the first satellite, and the second information relates to a store-and-forward architecture of a satellite supported by the terminal device; the store-and-forward architecture relates to core network functions supported by the satellite in a store-and-forward mode.

[0106] As shown in FIG. 10, the method comprises: S1001, the first satellite sends first information to the terminal device.

[0107] In FIG. 10, the first satellite sends the first information, and the terminal device receives the first information sent by the first satellite. The first information is used to determine whether the first cell of the first satellite allows camping and / or access of the terminal device; the first information relates to a store-and-forward architecture supported by the first satellite.

[0108] It can be understood that the first information is used by the terminal device to determine whether the first cell allows access and / or camping of the terminal device.

[0109] As shown in FIG. 11, the method comprises: S1101, the terminal device sends second information to the first satellite.

[0110] In FIG. 11, the terminal device sends the second information, and the first satellite receives the second information sent by the terminal device. The second information is used to determine whether the first cell of the first satellite allows camping and / or access of the terminal device; the second information relates to a store-and-forward architecture of a satellite supported by the terminal device.

[0111] It can be understood that the second information is used by the first satellite to determine whether the first cell allows access and / or camping of the terminal device.

[0112] In the following, the wireless communication method shown in any one of FIGS. 8 to 11 provided by the embodiments of the present application is described.

[0113] The terminal device is in a coverage area of a first cell of a first satellite, and the terminal device does not camp and / or access the first cell. The first information or the second information is used to determine whether the first cell allows camping and / or access of the terminal device. The first satellite supports a store-and-forward mode.

[0114] In an example, the terminal device does not camp on the first cell, and the first information or the second information is used to determine whether the first cell allows camping of the terminal device.

[0115] In an example, the terminal device does not camp on the first cell, and the first information or the second information is used to determine whether the first cell allows camping and access of the terminal device.

[0116] In an example, the terminal device has camped on the first cell, and the first information or the second information is used to determine whether the first cell allows access of the terminal device.

[0117] In some embodiments, camping and / or access can also be replaced by connectivity.

[0118] In the embodiments of the present application, the first information is related to a store-and-forward architecture supported by the first satellite. The first satellite sends the first information to the terminal device, and the terminal device determines whether the first cell supports access and / or camping of the terminal device based on the first information and a store-and-forward mode supported by the satellite supported by the terminal device.

[0119] In the embodiments of the present application, the first information is related to a store-and-forward architecture supported by the first satellite. The terminal device sends the second information to the first satellite, and the first satellite determines whether the first cell supports access and / or camping of the terminal device based on the second information and a store-and-forward mode supported by the first satellite.

[0120] In the embodiments of the present application, the store-and-forward architecture can be understood as a function of a core network supported by a satellite in a store-and-forward mode, that is, a function of a core network deployed by a satellite supporting a store-and-forward mode, or a capability of a core network deployed in a store-and-forward mode.

[0121] The terminal device transmits the first information related to a store-and-forward architecture supported by the first satellite or the second information related to a store-and-forward architecture of a satellite supported by the terminal device to the first satellite, which helps the terminal device to more accurately access a cell of a store-and-forward architecture supported by the terminal device to complete registration and data transmission.

[0122] In some embodiments, the store-and-forward architecture includes one or more of the following:

[0123] A first store-and-forward architecture, a satellite supporting the first store-and-forward architecture supports part of core network functions;

[0124] A second store-and-forward architecture, a satellite supporting the second store-and-forward architecture supports all core network functions.

[0125] The satellite supporting the first store-and-forward architecture deploys part of the core network functions, and the functions of the core network not deployed on the satellite can be deployed on a ground gateway.

[0126] In an example, the satellite supporting the first store-and-forward architecture deploys part of the functions of the MME or AMF, and the other part of the functions of the MME or AMF is deployed on the ground gateway.

[0127] In an example, the satellite supporting the first store-and-forward architecture deploys part of the functions of the HSS, and the other part of the functions of the HSS is deployed on the ground gateway.

[0128] The satellite supporting the second store-and-forward architecture deploys all functions of the core network.

[0129] In an example, the satellite supporting the second store-and-forward architecture contains functions of core network network elements such as MME, SGW, PGW, HSS, E-SMLC, SMSC, etc.

[0130] In some embodiments, the first satellite supports the first store-and-forward architecture or the second store-and-forward architecture.

[0131] The first satellite supports one of the first store-and-forward mode and the second store-and-forward mode.

[0132] In some embodiments, the terminal device supports the first store-and-forward architecture and / or the second store-and-forward architecture of the satellite.

[0133] The terminal device supports one or both of the first store-and-forward architecture and the second store-and-forward architecture of the satellite.

[0134] In an example, the terminal device supports the first store-and-forward architecture of the satellite.

[0135] In an example, the terminal device supports the second store-and-forward architecture of the satellite.

[0136] In an example, the terminal device supports the first store-and-forward architecture and the second store-and-forward architecture of the satellite.

[0137] In some embodiments, for the first information in FIG. 8, FIG. 9, or FIG. 10, the indication of the first information includes one of the following two cases:

[0138] Case 1, the first information is used to indicate the store-and-forward architecture supported by the first satellite;

[0139] Case 2, the first information is used to indicate whether the first cell allows the first terminal device and / or the second terminal device to camp on and / or access.

[0140] In Case 1, the first satellite indicates the store-and-forward architecture supported by the first satellite itself through the first information, so that the terminal device determines whether the first cell allows the terminal device to camp on and / or access based on the store-and-forward architecture supported by the first satellite and the store-and-forward architecture of the satellite supported by the terminal device.

[0141] In the embodiments of the present application, the first information can indicate the store-and-forward architecture supported by the first satellite based on different values.

[0142] In an example, the first information has a value of 0, indicating that the first satellite supports the first store-and-forward architecture; and the first information has a value of 1, indicating that the first satellite supports the second store-and-forward architecture.

[0143] In the embodiments of the present application, the first information can be a two-bit bitmap, and the two bits in the bitmap correspond to the first store-and-forward architecture and the second store-and-forward architecture respectively.

[0144] In an example, for a bit in the bitmap, a value of 0 of the bit indicates that the first satellite does not support the store-and-forward architecture corresponding to the bit, and a value of 1 of the bit indicates that the first satellite supports the store-and-forward architecture corresponding to the bit.

[0145] In some embodiments, the wireless communication method described in FIG. 8 further includes one or more of the following:

[0146] The terminal device determines that the first cell allows the terminal device to camp on and / or access, wherein the terminal device supports the store-and-forward architecture indicated by the first indication information;

[0147] The terminal device determines that the first cell does not allow the terminal device to camp on and / or access, wherein the terminal device does not support the store-and-forward architecture indicated by the first indication information.

[0148] Correspondingly, the first cell allows the terminal device to camp on and / or access, wherein the terminal device supports the store-and-forward architecture indicated by the first indication information; and / or, the first cell does not allow the terminal device to camp on and / or access, wherein the terminal device does not support the store-and-forward architecture indicated by the first indication information.

[0149] Here, factors that determine whether the first cell allows the terminal device to camp on and / or access include the store-and-forward mode of the satellite supported by the terminal device and the store-and-forward mode supported by the first satellite.

[0150] If the terminal device supports the store-and-forward architecture indicated by the first indication information, i.e., the terminal device supports the store-and-forward architecture supported by the first satellite, the first cell allows the terminal device to camp on and / or access.

[0151] In an example, the terminal device supports the first store-and-forward architecture, and the first satellite supports the first store-and-forward architecture, and the first cell allows the terminal device to camp on and / or access.

[0152] In an example, the terminal device supports the first store-and-forward architecture and the second store-and-forward architecture, and the first satellite supports the first store-and-forward architecture, and the first cell allows the terminal device to camp on and / or access.

[0153] In an example, the terminal device supports the second store-and-forward architecture, the first satellite supports the second store-and-forward architecture, and the first cell allows the terminal device to camp on and / or access.

[0154] In an example, the terminal device supports the first store-and-forward architecture and the second store-and-forward architecture, the first satellite supports the second store-and-forward architecture, and the first cell allows the terminal device to camp on and / or access.

[0155] If the terminal device does not support the store-and-forward architecture indicated by the first indication information, i.e., the terminal device does not support the store-and-forward architecture supported by the first satellite, the first cell does not allow the terminal device to camp on and / or access.

[0156] In an example, the terminal device does not support the first store-and-forward architecture, the first satellite supports the first store-and-forward architecture, and the first cell does not allow the terminal device to camp on and / or access. The terminal device can support the second store-and-forward architecture or can not support the second store-and-forward architecture.

[0157] In an example, the terminal device does not support the second store-and-forward architecture, the first satellite supports the second store-and-forward architecture, and the first cell does not allow the terminal device to camp on and / or access. The terminal device can support the first store-and-forward architecture or can not support the first store-and-forward architecture.

[0158] In some embodiments, the wireless communication method described in FIG. 8 further includes one or more of the following:

[0159] The terminal device determines that the first cell allows the terminal device to camp on and / or access, wherein the terminal device supports the store-and-forward architecture indicated by the first indication information, and the first cell allows camping and / or access;

[0160] The terminal device determines that the first cell does not allow the terminal device to camp on and / or access, wherein the terminal device does not support the store-and-forward architecture indicated by the first indication information, or the first cell does not allow camping and / or access.

[0161] Correspondingly, the first cell allows the terminal device to camp on and / or access, wherein the terminal device supports the store-and-forward architecture indicated by the first indication information, and the first cell allows camping and / or access; and / or,

[0162] The first cell does not allow the terminal device to camp on and / or access, wherein the terminal device does not support the store-and-forward architecture indicated by the first indication information, or the first cell does not allow camping and / or access.

[0163] Here, factors whether the first cell allows the terminal device to camp on and / or access include: a store-and-forward mode of a satellite supported by the terminal device, a store-and-forward mode supported by the first satellite, and whether the first cell allows camping on and / or accessing.

[0164] If the terminal device supports the store-and-forward architecture indicated by the first indication information, i.e., the terminal device supports the store-and-forward architecture supported by the first satellite, and the first cell allows camping on and / or accessing, the first cell allows the terminal device to camp on and / or access.

[0165] In an example, the terminal device supports the first store-and-forward architecture, the first satellite supports the first store-and-forward architecture, and the first cell allows camping on and / or accessing, the first cell allows the terminal device to camp on and / or access.

[0166] In an example, the terminal device supports the first store-and-forward architecture and the second store-and-forward architecture, the first satellite supports the first store-and-forward architecture, and the first cell allows camping on and / or accessing, the first cell allows the terminal device to camp on and / or access.

[0167] In an example, the terminal device supports the second store-and-forward architecture, the first satellite supports the second store-and-forward architecture, and the first cell allows camping on and / or accessing, the first cell allows the terminal device to camp on and / or access.

[0168] If the terminal device does not support the store-and-forward architecture indicated by the first indication information, i.e., the terminal device does not support the store-and-forward architecture supported by the first satellite, or the first cell does not allow camping on and / or accessing, the first cell does not allow the terminal device to camp on and / or access.

[0169] In an example, the terminal device supports the first store-and-forward architecture, the first satellite supports the first store-and-forward architecture, and the first cell does not allow camping on and / or accessing, the first cell does not allow the terminal device to camp on and / or access.

[0170] In an example, the terminal device supports the first store-and-forward architecture and the second store-and-forward architecture, the first satellite supports the first store-and-forward architecture, and the first cell does not allow camping on and / or accessing, the first cell does not allow the terminal device to camp on and / or access.

[0171] In an example, the terminal device supports the second store-and-forward architecture, the first satellite supports the second store-and-forward architecture, and the first cell does not allow camping on and / or accessing, the first cell does not allow the terminal device to camp on and / or access.

[0172] In an example, the terminal device does not support the first store-and-forward architecture, the first satellite supports the first store-and-forward architecture, and the first cell allows camping and / or access, the first cell does not allow the terminal device to camp and / or access. Wherein the terminal device can support the second store-and-forward architecture, or can not support the second store-and-forward architecture.

[0173] In an example, the terminal device does not support the second store-and-forward architecture, the first satellite supports the second store-and-forward architecture, and the first cell allows camping and / or access, the first cell does not allow the terminal device to camp and / or access. Wherein the terminal device can support the first store-and-forward architecture, or can not support the first store-and-forward architecture.

[0174] In an example, the terminal device does not support the first store-and-forward architecture, the first satellite supports the first store-and-forward architecture, and the first cell does not allow camping and / or access, the first cell does not allow the terminal device to camp and / or access. Wherein the terminal device can support the second store-and-forward architecture, or can not support the second store-and-forward architecture.

[0175] In an example, the terminal device does not support the second store-and-forward architecture, the first satellite supports the second store-and-forward architecture, and the first cell does not allow camping and / or access, the first cell does not allow the terminal device to camp and / or access. Wherein the terminal device can support the first store-and-forward architecture, or can not support the first store-and-forward architecture.

[0176] In some embodiments, based on the wireless communication method shown in FIG. 8, the method further comprises:

[0177] The terminal device receives third information, the third information being used to indicate whether the first cell allows camping and / or access.

[0178] In some embodiments, based on the wireless communication method shown in FIG. 9, the method further comprises:

[0179] The first satellite sends third information, the third information being used to indicate whether the first cell allows camping and / or access.

[0180] In some embodiments, based on the wireless communication method shown in FIG. 10, as shown in FIG. 12, the method further comprises:

[0181] S1002, the first satellite sends third information to the terminal device, the third information being used to indicate whether the first cell allows camping and / or access.

[0182] The third information can be cellBarred or cellBarredNTN applied to NTN.

[0183] Here, the terminal device can determine whether the first cell allows camping and / or access of the terminal device with reference to the third information, and the first cell allows camping and / or access of the terminal device only if the third information indicates that camping and / or access is allowed.

[0184] In some embodiments, if the third information is not included or indicates barred, it indicates that camping and / or access is not allowed, and if the third information indicates allowed, it indicates that camping and / or access is allowed.

[0185] In case 1 of the embodiments of the present application, the first satellite indicates that it supports a core network over satellite architecture option, i.e., a forwarding and storing architecture, and the terminal device determines whether to access the first cell of the first satellite according to its own support capability for the storing and forwarding architecture.

[0186] In case 2, the first information is used to determine whether the first cell allows the terminal device to camp and / or access in combination with the storing and forwarding mode of the satellite supported by the terminal device. The first satellite indicates whether the first cell allows the first terminal device and / or the second terminal device to camp and / or access through the first information, so that the terminal device determines whether the first cell allows the terminal device to camp and / or access based on whether the first cell allows the first terminal device and / or the second terminal device to camp and / or access and the storing and forwarding architecture of the satellite supported by the terminal device.

[0187] In case 2, the first terminal device supports a first storing and forwarding architecture of the satellite, and the second terminal device supports a second storing and forwarding architecture of the satellite. Understandably, the terminal device supporting the first storing architecture belongs to the first terminal device, and the terminal device supporting the second storing architecture belongs to the second terminal device.

[0188] In the embodiments of the present application, if the first information indicates that the first cell allows the first terminal device to camp and / or access, the first satellite supports the first storing and forwarding architecture; and if the first information indicates that the first cell allows the second terminal device to camp and / or access, the first satellite supports the second storing and forwarding architecture.

[0189] In some embodiments, the first information indicates whether the first cell allows a certain terminal device to camp and / or access based on different values.

[0190] In an example, the first information takes a value of 00, indicating that the first cell does not allow the first terminal device and the second terminal device to camp and / or access; the first information takes a value of 01, indicating that the first cell does not allow the first terminal device to camp and / or access and allows the second terminal device to camp and / or access; and the first information takes a value of 10, indicating that the first cell allows the first terminal device to camp and / or access and does not allow the second terminal device to camp and / or access.

[0191] In some embodiments, the first information comprises one or more of the following:

[0192] first indication information, the first indication information being used for indicating whether the first cell allows camping and / or accessing of the first terminal device;

[0193] second indication information, the second indication information being used for indicating whether the first cell allows camping and / or accessing of the second terminal device.

[0194] Here, the first information comprises targeted information for different store-and-forward architectures. For the first store-and-forward architecture, the first indication information is comprised, which is used for indicating whether the first cell allows camping and / or accessing of the terminal device supporting the first store-and-forward architecture with satellite. For the second store-and-forward architecture, the second indication information is comprised, which is used for indicating whether the first cell allows camping and / or accessing of the terminal device supporting the second store-and-forward architecture with satellite.

[0195] If the first store-and-forward architecture is partial MME (partial MME) function and the second store-and-forward architecture is full core network (full CN) function, the first indication information can be identified as cellBarred-NTN-partialMME, and the second indication information can be identified as cellBarred-NTN-fullCN.

[0196] In some embodiments, based on the wireless communication method shown in FIG. 8, the following one or more are further included:

[0197] The terminal device determines that the first cell allows camping and / or accessing of the terminal device, wherein the terminal device belongs to the terminal device allowed to access the first cell indicated by the first information;

[0198] The terminal device determines that the first cell does not allow camping and / or accessing of the terminal device, wherein the terminal device belongs to the terminal device not allowed to access the first cell indicated by the first information.

[0199] The first cell allows camping and / or accessing of the terminal device, wherein the terminal device belongs to the terminal device allowed to access the first cell indicated by the first information; and / or,

[0200] The first cell does not allow camping and / or accessing of the terminal device, wherein the terminal device belongs to the terminal device not allowed to access the first cell indicated by the first information.

[0201] The terminal device belongs to a terminal device allowed to access by the first information indication of the first cell. It can be understood that the first information indication of the first cell indicates which terminal device supporting the storage forwarding architecture resides and / or accesses, and the terminal device supports the storage forwarding architecture. Therefore, the first cell allows the terminal device to reside and / or access.

[0202] In some embodiments, the terminal device belongs to a terminal device allowed to access by the first information indication of the first cell, including one or more of the following:

[0203] The terminal device supports the first storage forwarding architecture of the satellite, and the first information indicates that the first terminal device is allowed to reside and / or access the first cell;

[0204] The terminal device supports the second storage forwarding architecture of the satellite, and the first information indicates that the second terminal device is allowed to reside and / or access the first cell.

[0205] If the terminal device supports the first storage forwarding architecture of the satellite, and the first information indicates that the first terminal device is allowed to reside and / or access the first cell, the first cell allows the terminal device to reside and / or access. Wherein, the terminal device can support or not support the second storage forwarding architecture.

[0206] If the terminal device supports the second storage forwarding architecture of the satellite, and the first information indicates that the second terminal device is allowed to reside and / or access the first cell, the first cell allows the terminal device to reside and / or access. Wherein, the terminal device can support or not support the first storage forwarding architecture.

[0207] In some embodiments, the terminal device does not belong to a terminal device allowed to access by the first information indication of the first cell, including one or more of the following:

[0208] The terminal device supports the first storage forwarding architecture of the satellite, and the first information indicates that the first terminal device is not allowed to reside and / or access the first cell;

[0209] The terminal device supports the second storage forwarding architecture of the satellite, and the first information indicates that the second terminal device is not allowed to reside and / or access the first cell.

[0210] If the terminal device supports the first storage forwarding architecture of the satellite, and the first information indicates that the first terminal device is not allowed to reside and / or access the first cell, the first cell does not allow the terminal device to reside and / or access. Wherein, the terminal device can support or not support the second storage forwarding architecture.

[0211] If the terminal device supports the second store-and-forward architecture of the satellite, the first information indicates that the first cell does not allow the second terminal device to camp on and / or access, and the first cell does not allow the terminal device to camp on and / or access. Wherein, the terminal device can support or not support the first store-and-forward architecture.

[0212] In some embodiments, in case 2, the parameters of the first cell include one or more of the following parameters:

[0213] CellBarred, CellBarred-NTN applied to NTN.

[0214] The cell barring can indicate that the non-NTN-capable terminal device is barred from camping on and / or accessing to avoid the non-NTN-capable terminal device from camping on and / or accessing to the first cell.

[0215] The cell barring applied to NTN can indicate that the terminal device not supporting the store-and-forward mode is barred from camping on and / or accessing to avoid the terminal device not supporting the store-and-forward mode from camping on and / or accessing to the first cell.

[0216] Through the setting of the cell barring of the first cell and / or the cell barring applied to NTN, it can be avoided that the terminal device unable to communicate with the first satellite camps on and / or accesses to the first cell, and unnecessary resource waste is avoided.

[0217] In some embodiments, the first information in FIG. 8, FIG. 9 or FIG. 10 is contained in a system message.

[0218] Optionally, the first information is contained in SIB1 or SIB33 or other SIBs.

[0219] In some embodiments, for the second information in FIG. 8, FIG. 9 or FIG. 11, the second information is used to indicate the store-and-forward architecture of the satellite supported by the terminal device.

[0220] The terminal device reports the store-and-forward architecture of the satellite supported by itself to the first satellite through the second information, so that the first satellite can determine whether the first cell allows the terminal device to access based on the store-and-forward architecture of the satellite supported by the terminal device.

[0221] In some embodiments, the first satellite can refer to the store-and-forward architecture of the satellite supported by the terminal device to determine whether the first cell allows the terminal device to access. In addition to the factors for the first satellite to determine whether the first cell allows the terminal device to access, other factors can also be included, which are not limited here.

[0222] In some embodiments, the second information is contained in the first message, and the first message is a message in a random access process.

[0223] In a case where the terminal device camps on the first cell, the first cell is transmitted to the first satellite in a random access procedure, and the second information is carried in the first cell.

[0224] In some embodiments, the first message is a non-access stratum (NAS) message or a radio resource control (RRC) message.

[0225] In a case where the first satellite supports the first store-and-forward architecture or the second store-and-forward architecture, the core network has a function of being able to parse the NAS message to obtain the second information.

[0226] The RRC message carrying or carrying the second information can include an RRC connection request message, a message 3 (Msg3), and the like.

[0227] In some embodiments, the terminal device receives a system message transmitted by the first satellite, and the system message carries indication information indicating that the first satellite supports the store-and-forward mode.

[0228] In a case where the terminal device determines that the first satellite supports the store-and-forward mode but does not determine the store-and-forward architecture supported by the first satellite, the terminal device transmits the second information to the first satellite, and the first satellite receives the second information transmitted by the terminal device to determine whether to allow the terminal device to access according to the second information.

[0229] In some embodiments, based on the wireless communication method shown in FIG. 8, FIG. 11, further comprising:

[0230] The terminal device receives fourth information, and the fourth information is used to indicate whether the first cell allows the terminal device to access.

[0231] In some embodiments, based on the wireless communication method shown in FIG. 9, FIG. 11, further comprising:

[0232] The first satellite transmits fourth information, and the fourth information is used to indicate whether the first cell allows the terminal device to access.

[0233] In some embodiments, based on the wireless communication method shown in FIG. 11, as shown in FIG. 13, further comprising:

[0234] S1301, the first satellite transmits fourth information to the terminal device, and the fourth information is used to indicate whether the first cell allows the terminal device to access.

[0235] In some embodiments, the second information can indicate whether to allow the terminal device to access based on different values.

[0236] In the embodiments of the present application, the second information and the fourth information can have a strong binding relationship or can not have a strong binding relationship. Wherein, the second information and the fourth information can have a strong binding relationship, which can be understood as that the first satellite determines whether to allow the terminal device to access based on the second information. The second information and the fourth information can not have a strong binding relationship, which can be understood as that the first satellite determines whether to allow the terminal device to access based on the second information by itself.

[0237] Taking the second information and the fourth information having a strong binding relationship as an example, if the storage forwarding architecture of the satellite supported by the terminal device includes the storage forwarding architecture supported by the first satellite, the fourth information indicates that the first cell allows the terminal device to access; if the storage forwarding architecture of the satellite supported by the terminal device does not include the storage forwarding architecture supported by the first satellite, the fourth information indicates that the first cell does not allow the terminal device to access.

[0238] Taking the second information and the fourth information not having a strong binding relationship as an example, if the first satellite determines that the first cell allows the terminal device to access, the storage forwarding architecture of the satellite supported by the terminal device includes the storage forwarding architecture supported by the first satellite. Wherein, if the storage forwarding architecture supported by the terminal device includes the storage forwarding architecture supported by the first satellite, the first cell can allow the terminal device to access or can not allow the terminal device to access.

[0239] Taking the second information and the fourth information not having a strong binding relationship as an example, if the first satellite determines that the first cell does not allow the terminal device to access, the storage forwarding architecture of the satellite supported by the terminal device can include the storage forwarding architecture supported by the first satellite or can not include the storage forwarding architecture supported by the first satellite. Wherein, if the storage forwarding architecture supported by the terminal device does not include the storage forwarding architecture supported by the first satellite, the first cell does not allow the terminal device to access.

[0240] In the embodiments of the present application, the storage forwarding architecture supported by the terminal device includes the storage forwarding architecture supported by the first satellite can be understood as that the terminal device supports the storage forwarding architecture supported by the first satellite.

[0241] In an example, the first satellite supports a first storage forwarding architecture, and the terminal device supports the first storage forwarding architecture of the satellite.

[0242] In an example, the first satellite supports a first storage forwarding architecture, and the terminal device supports the first storage forwarding architecture and a second storage forwarding architecture of the satellite.

[0243] In an example, the first satellite supports a second storage forwarding architecture, and the terminal device supports the second storage forwarding architecture of the satellite.

[0244] In an example, the first satellite supports a second storage forwarding architecture, and the terminal device supports the first storage forwarding architecture and the second storage forwarding architecture of the satellite.

[0245] In an embodiment of the present application, the storage and forwarding architecture supported by the terminal device does not include the storage and forwarding architecture supported by the first satellite, which means that the terminal device does not support the storage and forwarding architecture supported by the first satellite.

[0246] In an example, the first satellite supports the first storage and forwarding architecture, and the terminal device does not support the first storage and forwarding architecture supported by the satellite. In this case, the terminal device can support the second storage and forwarding architecture or not support the second storage and forwarding architecture.

[0247] In an example, the first satellite supports the second storage and forwarding architecture, and the terminal device does not support the second storage and forwarding architecture supported by the satellite. In this case, the terminal device can support the first storage and forwarding architecture or not support the first storage and forwarding architecture.

[0248] In some embodiments, if the fourth information indicates that the first cell does not allow the terminal device to access;

[0249] The fourth information is also used to indicate that the reason why the first cell does not allow the terminal device to access is that the storage and forwarding architecture of the satellite supported by the terminal device does not include the storage and forwarding architecture supported by the first satellite.

[0250] An embodiment of the present application provides a wireless communication method, which is applied to a terminal device, as shown in FIG. 14, and includes the following steps:

[0251] S1401, the terminal device receives fifth information, the fifth information is related to the storage and forwarding mode of a satellite supported by each frequency point in one or more frequency points, and the fifth information is used to determine the frequency points to be measured and the frequency points not to be measured.

[0252] An embodiment of the present application provides a wireless communication method, which is applied to a first satellite, as shown in FIG. 15, and includes the following steps:

[0253] S1501, the first satellite sends fifth information, the fifth information is related to the storage and forwarding mode of a satellite supported by each frequency point in one or more frequency points, and the fifth information is used to determine the frequency points to be measured and the frequency points not to be measured.

[0254] An embodiment of the present application provides a wireless communication method, which is applied to a communication system including a terminal device and a first satellite, as shown in FIG. 16, and includes the following steps:

[0255] S1601, the first satellite sends fifth information to the terminal device, the fifth information is related to the storage and forwarding mode of a satellite supported by each frequency point in one or more frequency points, and the fifth information is used to determine the frequency points to be measured and the frequency points not to be measured.

[0256] Next, the wireless communication method shown in FIG. 14, FIG. 15 or FIG. 16 is described.

[0257] After the terminal device accesses the first satellite, the first satellite can send fifth information to the terminal device, where the fifth information is used to indicate the capability of each frequency band in the one or more frequency points in the store-and-forward mode. The terminal device determines which frequency points in the frequency points to measure and / or which frequency points not to measure based on the fifth information.

[0258] In some embodiments, the fifth information can be carried in a system message.

[0259] Optionally, the system message carrying the fifth information can include one or more of the following: SIB3, SIB4, SIB5, SIB33, and other SIBs.

[0260] In some embodiments, the frequency points measured by the terminal device can be used for neighbor cell measurement.

[0261] In some embodiments, the fifth information includes third indication information corresponding to each frequency point in the one or more frequency points.

[0262] The third indication information is used to indicate whether the corresponding frequency point supports the store-and-forward mode of the satellite, or the third indication information is used to indicate that the corresponding frequency point supports the first store-and-forward architecture or the second store-and-forward architecture of the satellite.

[0263] For a frequency point, the first satellite can indicate one or more of the following through the third indication information corresponding to the frequency point:

[0264] Whether the store-and-forward mode of the satellite is supported;

[0265] The first store-and-forward architecture or the second store-and-forward architecture of the satellite is supported.

[0266] It can be understood that, in the case that the frequency point supports the store-and-forward mode of the satellite, it is considered whether the first store-and-forward architecture of the satellite or the second store-and-forward architecture of the satellite is supported. Therefore, whether the store-and-forward mode of the satellite is supported is a more coarse-grained indication method relative to the first store-and-forward architecture or the second store-and-forward architecture of the satellite.

[0267] In the case that the third indication information corresponding to a frequency point indicates whether the store-and-forward mode of the satellite is supported, the terminal device determines whether to measure the frequency point based on whether the store-and-forward mode of the satellite is supported.

[0268] In the case that the third indication information corresponding to a frequency point indicates that the first store-and-forward architecture or the second store-and-forward architecture of the satellite is supported, the terminal device determines whether to measure the frequency point based on the store-and-forward architecture of the satellite supported by the frequency point.

[0269] In a case where the third indication information indicates whether the store-and-forward mode of the satellite is supported and the first store-and-forward architecture or the second store-and-forward architecture of the supported satellite, the terminal device determines whether to measure the frequency point based on the store-and-forward architecture of the satellite supported by the frequency point.

[0270] It can be understood that, if the third indication information indicates whether the store-and-forward mode of the satellite is supported and the first store-and-forward architecture or the second store-and-forward architecture of the supported satellite, the third indication information should indicate that the store-and-forward mode of the satellite is supported.

[0271] In some embodiments, for a frequency point, if the terminal device supports the capability of the frequency point, the frequency point is a measured frequency point. The terminal device can measure the frequency point; if the terminal device does not support the capability of the frequency point, the frequency point is an unmeasured frequency point. The terminal device does not measure the frequency point.

[0272] In some embodiments, the frequency point is a measured frequency point; wherein,

[0273] The terminal device supports the store-and-forward mode of the satellite, and the third indication information corresponding to the frequency point indicates that the frequency point supports the store-and-forward mode of the satellite, or

[0274] The terminal device supports the first store-and-forward architecture of the satellite, and the third indication information corresponding to the frequency point indicates that the frequency point supports the first store-and-forward architecture of the satellite, or

[0275] The terminal device supports the second store-and-forward architecture of the satellite, and the third indication information corresponding to the frequency point indicates that the frequency point supports the second store-and-forward architecture of the satellite.

[0276] In some embodiments, the frequency point is not a measured frequency point; wherein,

[0277] The terminal device supports the store-and-forward mode of the satellite, and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the store-and-forward mode of the satellite, or

[0278] The terminal device supports the first store-and-forward architecture of the satellite, and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the first store-and-forward architecture of the satellite, or

[0279] The terminal device supports the second store-and-forward architecture of the satellite, and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the second store-and-forward architecture of the satellite.

[0280] In the embodiments of the present application, the first satellite indicates the support of the store-and-forward mode architecture of each frequency point in the system message, so that the UE performs corresponding neighbor cell measurement according to the capability.

[0281] The embodiment of the application provides a wireless communication method, which is applied to a terminal device, as shown in Figure 17, and comprises the following steps:

[0282] S1701, the terminal device sends a second message, wherein the second message is a request message in a mobility management process;

[0283] S1702, the terminal device receives a third message, wherein the third message is used for indicating that the first satellite refuses the request of the second message; and the third message comprises fourth indication information, wherein the fourth indication information is used for indicating that the reason why the request of the second message is refused is related to a store-and-forward mode.

[0284] The embodiment of the application provides a wireless communication method, which is applied to a first satellite, as shown in Figure 18, and comprises the following steps:

[0285] S1801, the first satellite receives a second message, wherein the second message is a request message in a mobility management process;

[0286] S1802, the first satellite sends a third message, wherein the third message is used for indicating that the first satellite refuses the request of the second message; and the third message comprises fourth indication information, wherein the fourth indication information is used for indicating that the reason why the request of the second message is refused is related to a store-and-forward mode.

[0287] The embodiment of the application provides a wireless communication method, which is applied to a wireless communication system comprising a first satellite and a terminal device, as shown in Figure 19, and comprises the following steps:

[0288] S1901, the terminal device sends a second message to the first satellite, wherein the second message is a request message in a mobility management process;

[0289] S1902, the first satellite sends a third message to the terminal device, wherein the third message is used for indicating that the first satellite refuses the request of the second message; and the third message comprises fourth indication information, wherein the fourth indication information is used for indicating that the reason why the request of the second message is refused is related to a store-and-forward mode.

[0290] In the following, the wireless communication method shown in Figure 17, Figure 18 or 19 is described.

[0291] In the mobility management process, the terminal device sends a second message to the first satellite, and makes a request related to mobility management; after receiving the second message, the first satellite sends a third message to the terminal device, wherein the third message is a response message of the second message, and is used for indicating acceptance or refusal of the request of the second message,

[0292] In the case that the third message is used to indicate rejection of the request of the second message, the fourth indication information can be included in the third message, and the fourth indication information is used to indicate that the reason for rejection of the request of the second message is related to the store-and-forward mode of the satellite.

[0293] In some embodiments, in the case that the first satellite supports the first store-and-forward architecture, the fourth indication information carried in the sent third message is used to indicate that the reason for rejection of the request of the second message is related to the store-and-forward mode of the satellite.

[0294] In some embodiments, the reason indicated by the fourth indication information includes that the first satellite does not support roaming.

[0295] The reason indicated by the fourth indication information that the first satellite does not support roaming can also be described as that the first satellite supporting the store-and-forward mode does not support roaming, or the first store-and-forward architecture does not support roaming, or the first satellite supporting the first store-and-forward architecture does not support roaming.

[0296] In the embodiments of the present application, that the first satellite does not support roaming can be understood as that the first satellite does not support roaming in the case of receiving the current second message.

[0297] In some embodiments, the reason that the first satellite does not support roaming is that the first satellite does not have the subscription information of the terminal device in the first satellite when receiving the second message.

[0298] In some embodiments, the second message includes an attach request message and / or a tracking area update (TAU) request message.

[0299] If the second message is an attach request message, the third message is an attach accept message or an attach reject message in response to the attach request message. In the case that the third message carries the fourth indication information, the third message is the attach reject message.

[0300] If the second message is a TAU request message, the third message is a TAU accept message or a TAU reject message in response to the TAU request message. In the case that the third message carries the fourth indication information, the third message is the TAU reject message.

[0301] In the embodiments of the present application, in the case that the fourth indication information indicates that the reason for rejection of the request of the second message is related to the store-and-forward mode of the satellite, the value of the fourth indication information can be a predefined cause value.

[0302] In the embodiments of the present application, a new rejection reason is introduced for the first store-and-forward architecture, so that the terminal device can more accurately determine the rejected reason.

[0303] In the embodiments of the present application, the wireless communication methods shown in FIGS. 8-11, the wireless communication methods shown in FIGS. 14-16, and the wireless communication methods shown in FIGS. 17-19 can be independently implemented or implemented in combination without conflict.

[0304] In the following, the wireless communication methods provided by the embodiments of the present application are described through multiple embodiments. The wireless communication methods provided by the embodiments of the present application can be implemented as, but not limited to, the following embodiments one to five.

[0305] Embodiment one, satellite indicates core network on-board architecture options, UE decides whether to access according to capability

[0306] The wireless communication method provided by embodiment one includes:

[0307] The network indicates the store-and-forward mode architecture it supports through system messages (such as SIB1 or SIB33 or other SIBs), wherein one or more of the following is indicated:

[0308] a) Partial MME on-board (partial MME onboard);

[0309] b) Full CN on-board (full CN onboard).

[0310] The UE supporting the store-and-forward satellite capability reads the architecture indication information in the system message broadcast, and the UE decides whether to camp on the current cell and / or initiate access in the current cell according to the store-and-forward mode capability it supports and the architecture indication information broadcast by the network.

[0311] For example, if the UE supports the S&F mode of the partial MME on-board architecture and the current satellite also supports it, or if the UE supports the full CN on-board architecture and the current satellite also supports it, the UE camps on the cell, otherwise the UE does not camp on the cell.

[0312] In some embodiments, the UE refers to the cellBarred-NTN indication information, and only when the cellBarred-NTN indication is allowed, the UE camps on the cell.

[0313] Embodiment two, introduce separate callbarred indication for partial MME architecture and full CN on-board architecture

[0314] The wireless communication method provided by embodiment two includes:

[0315] The network broadcasts separate access barring indication information, such as cellBarred-NTN-partialMME and cellBarred-NTN-fullCN, through system messages (for example, SIB1 or SIB33 or other SIBs), which indicates whether the current cell allows UEs supporting partial MME store-and-forward mode satellites and full CN onboard store-and-forward mode satellites to access the network. For store-and-forward satellite cells:

[0316] The legacy cellBarred is set as barred so that non-NTN-capable UEs are not allowed to access;

[0317] The legacy cellBarred-NTN is set as barred so that UEs not supporting store-and-forward satellite capabilities are not allowed to access.

[0318] A UE supporting store-and-forward satellite capabilities reads the cellBarred-NTN-partialMME and cellBarred-NTN-fullCN indication information in the system message broadcast, and decides whether to be barred for access in combination with UE capabilities. For a UE supporting partial MME onboard architecture, if the cellBarred-NTN-partialMME indication is barred, the terminal considers that the cell is barred for access; if the cellBarred-NTN-partialMME indication is not barred, the terminal considers that the cell allows access; for a UE supporting full CN onboard architecture, if the cellBarred-NTN-fullCN indication is barred, the terminal considers that the cell is barred for access; if the cellBarred-NTN-fullCN indication is not barred, the terminal considers that the cell allows access.

[0319] Embodiment three, the network only indicates S&F, and the UE indicates its capabilities when accessing, and the network decides whether to reject the UE request according to the UE capabilities.

[0320] The wireless communication method provided in embodiment three includes:

[0321] The network broadcasts support for store-and-forward mode through system messages (for example, SIB1 or SIB33 or other SIBs).

[0322] The UE indicates its store-and-forward mode architecture capability information, that is, whether it supports partial MME architecture and / or full CN onboard architecture, to the network when accessing. The capability information can be indicated through the following messages:

[0323] a) NAS message, e.g. ATTACH request or TAU request message

[0324] b) RRC connection setup request message

[0325] c) MSG3 of random access, e.g. indicated by dedicated LCID. For example, LCID xx indicates UE supports partial MME architecture, LCID yy indicates UE supports full CN onboard architecture.

[0326] After the satellite receives the access message, it can decide whether to admit or reject the UE according to its supported architecture and the UE indicated capability information. If the UE is rejected, the satellite can explicitly indicate the reason is that the corresponding store-and-forward mode architecture is not supported.

[0327] Embodiment four, the network indicates in system message the support of store-and-forward mode architecture for each frequency point, so that the UE performs corresponding neighbor cell measurement according to the capability.

[0328] The wireless communication method provided in embodiment four includes:

[0329] The network indicates in system message (e.g. SIB3 / SIB4 / SIB5 / SIB33 other SIB) whether one or more frequency points support store-and-forward mode, and further indicates the specific supported store-and-forward mode architecture, i.e. indicates for one or more frequency points:

[0330] a) support store-and-forward mode;

[0331] b) support partial MME architecture and / or full CN onboard architecture.

[0332] The terminal decides whether to perform measurement or not for which frequency point according to its supported store-and-forward mode capability and the network broadcasted frequency point related information.

[0333] In an example, for the UE of the satellite supporting store-and-forward mode, if the network indicates for a frequency point that it supports store-and-forward mode, the UE performs measurement for the frequency point, otherwise does not perform measurement.

[0334] In an example, for the UE supporting partial MME architecture, if the network indicates for a frequency point that it supports partial MME architecture, the UE performs measurement for the frequency point, otherwise does not perform measurement.

[0335] In an example, for the UE supporting full CN onboard architecture, if the network indicates for a frequency point that it supports full CN onboard architecture, the UE performs measurement for the frequency point, otherwise does not perform measurement.

[0336] Embodiment five, introduce new reject cause value for partial MME architecture

[0337] In the related art, the cause value of the current ATTACH reject includes several kinds shown in Table 1:

[0338] Table 1, cause value example

[0339] Under the partial MME architecture, only when the service link is available, the MME-onboard needs to respond to the UE an ATTACH REJECT message after receiving the UE's ATTACH request message because it cannot communicate with the HSS of the ground network to obtain the UE subscription information. The cause value closest to the cause value in the protocol shown in Table 1 is Roaming not allowed in this tracking area. However, the tracking area in NTN is actually bound to the geographical location, so this cause value is not applicable to the store-and-forward mode (not the tracking area where roaming is not supported).

[0340] In the protocol, a new cause value is defined, for example:

[0341] 1) The satellite supporting the store-and-forward mode does not support roaming (Roaming not allowed in this S&F satellite);

[0342] 2) The partial MME onboard does not support roaming (Roaming not allowed in this partial MME onboard).

[0343] In the embodiments of the present application, by introducing multiple indication information of the store-and-forward mode architecture, it is helpful for the UE to judge access and neighbor cell measurement, so as to more accurately access the cell of the architecture supported by the UE to complete registration and data transmission.

[0344] The preferred embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the specific details of the above-described embodiments. Within the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, and these simple modifications all belong to the protection scope of the present application. For example, in the above-described specific embodiments, various specific technical features described in the embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present application. For another example, various different embodiments of the present application can also be combined in any manner, as long as it does not deviate from the idea of the present application, and it should also be considered as disclosed in the present application. For another example, under the premise of no conflict, various embodiments described in the present application and / or technical features in various embodiments can be combined with any prior art, and the technical solutions obtained after combination should also fall within the protection scope of the present application.

[0345] It should also be understood that, in various method embodiments of the present application, the size of the sequence number of the above-described processes does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. In addition, in the embodiments of the present application, the terms "downlink", "uplink" and "sidelink" are used to represent the transmission direction of signals or data, wherein "downlink" is used to represent the transmission direction of signals or data as the first direction from the station to the user equipment of the cell, "uplink" is used to represent the transmission direction of signals or data as the second direction from the user equipment of the cell to the station, and "sidelink" is used to represent the transmission direction of signals or data as the third direction from the user equipment 1 to the user equipment 2. For example, "downlink signal" represents that the transmission direction of the signal is the first direction. In addition, in the embodiments of the present application, the term "and / or" is only used to describe the association relationship of the associated objects, and indicates that there can be three relationships. Specifically, A and / or B can represent three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are in an "or" relationship.

[0346] FIG. 20 is a schematic structural diagram of a terminal device provided by an embodiment of the present application. As shown in FIG. 20, the terminal device 2000 includes:

[0347] A determination unit 2001, configured to receive first information or send second information, the first information or the second information being used to determine whether a first cell of a first satellite allows camping and / or access of the terminal device;

[0348] The first information is related to a store-and-forward architecture supported by the first satellite, and the second information is related to a store-and-forward architecture of a satellite supported by the terminal device;

[0349] The store-and-forward architecture is related to core network functions supported by the satellite in a store-and-forward mode.

[0350] In some embodiments, the store-and-forward architecture comprises one or more of the following:

[0351] A first store-and-forward architecture, the satellite supporting part of core network functions supported by the first store-and-forward architecture;

[0352] A second store-and-forward architecture, the satellite supporting all core network functions supported by the second store-and-forward architecture.

[0353] In some embodiments, the first satellite supports the first store-and-forward architecture or the second store-and-forward architecture.

[0354] In some embodiments, the terminal device supports the first store-and-forward architecture and / or the second store-and-forward architecture of the satellite.

[0355] In some embodiments, the first information is used to indicate the store-and-forward architecture supported by the first satellite.

[0356] In some embodiments, the terminal device 2000 further comprises a first determining unit configured to one or more of the following:

[0357] determining that the first cell allows the terminal device to camp on and / or access, wherein the terminal device supports the store-and-forward architecture indicated by the first indication information;

[0358] determining that the first cell does not allow the terminal device to camp on and / or access, wherein the terminal device does not support the store-and-forward architecture indicated by the first indication information.

[0359] In some embodiments, the terminal device 2000 further comprises a second determining unit configured to one or more of the following:

[0360] determining that the first cell allows the terminal device to camp on and / or access, wherein the terminal device supports the store-and-forward architecture indicated by the first indication information, and the first cell allows camping on and / or access;

[0361] determining that the first cell does not allow the terminal device to camp on and / or access, wherein the terminal device does not support the store-and-forward architecture indicated by the first indication information, or the first cell does not allow camping on and / or access.

[0362] In some embodiments, the first communication unit 2001 is configured to receive third information, the third information being used to indicate whether the first cell allows camping on and / or access.

[0363] In some embodiments, the first information is used to indicate whether the first cell allows the first terminal device and / or the second terminal device to camp on and / or access;

[0364] The first terminal device supports a first store-and-forward architecture of a satellite;

[0365] The second terminal device supports a second store-and-forward architecture of a satellite.

[0366] In some embodiments, the first information comprises one or more of:

[0367] First indication information, the first indication information being used to indicate whether the first cell allows the first terminal device to camp on and / or access;

[0368] Second indication information, the second indication information being used to indicate whether the first cell allows the second terminal device to camp on and / or access.

[0369] In some embodiments, the terminal device 2000 further comprises a third determining unit configured to one or more of:

[0370] determining that the first cell allows the terminal device to camp on and / or access, wherein the terminal device belongs to terminal devices that the first information indicates the first cell allows to access;

[0371] determining that the first cell does not allow the terminal device to camp on and / or access, wherein the terminal device belongs to terminal devices that the first information indicates the first cell does not allow to access.

[0372] In some embodiments, the terminal device belongs to terminal devices that the first information indicates the first cell allows to access comprises one or more of:

[0373] The terminal device supports the first store-and-forward architecture of a satellite, and the first information indicates that the first cell allows the first terminal device to camp on and / or access;

[0374] The terminal device supports the second store-and-forward architecture of a satellite, and the first information indicates that the first cell allows the second terminal device to camp on and / or access.

[0375] In some embodiments, the terminal device belongs to terminal devices that the first information indicates the first cell does not allow to access comprises one or more of:

[0376] The terminal device supports the first store-and-forward architecture of a satellite, and the first information indicates that the first cell does not allow the first terminal device to camp on and / or access;

[0377] The terminal device supports the second store-and-forward architecture of the satellite, and the first information indicates that the first cell does not allow the second terminal device to camp on and / or access.

[0378] In some embodiments, the first information is included in a system message.

[0379] In some embodiments, the second information is used to indicate a store-and-forward architecture of a satellite supported by the terminal device.

[0380] In some embodiments, the second information is included in a first message, and the first message is a message in a random access procedure.

[0381] In some embodiments, the first message is a non-access stratum (NAS) message or a radio resource control (RRC) message.

[0382] In some embodiments, the first communication unit 2001 is further configured to receive fourth information, the fourth information being used to indicate whether the first cell allows the terminal device to access.

[0383] In some embodiments, the fourth information indicates that the first cell does not allow the terminal device to access.

[0384] The fourth information is further used to indicate that a reason why the first cell does not allow the terminal device to access is that a store-and-forward architecture of a satellite supported by the terminal device does not include a store-and-forward architecture supported by the first satellite.

[0385] In some embodiments, the first communication unit 2001 is further configured to receive fifth information, the fifth information being related to a store-and-forward mode of a satellite supported by each of one or more frequency points, and the fifth information being used to determine a measured frequency point and an unmeasured frequency point.

[0386] In some embodiments, the fifth information includes third indication information corresponding to each of the one or more frequency points.

[0387] The third indication information is used to indicate whether the corresponding frequency point supports the store-and-forward mode of the satellite, or the third indication information is used to indicate that the corresponding frequency point supports a first store-and-forward architecture or a second store-and-forward architecture of the satellite.

[0388] In some embodiments, the frequency point is the measured frequency point; and wherein

[0389] The terminal device supports the store-and-forward mode of the satellite, and the third indication information corresponding to the frequency point indicates that the frequency point supports the store-and-forward mode of the satellite, or

[0390] The terminal device supports a first store-and-forward architecture of a satellite, and the third indication information corresponding to the frequency point indicates that the frequency point supports the first store-and-forward architecture of the satellite, or

[0391] The terminal device supports a second store-and-forward architecture of a satellite, and the third indication information corresponding to the frequency point indicates that the frequency point supports the second store-and-forward architecture of the satellite.

[0392] In some embodiments, the frequency point is not a measurement frequency point; wherein

[0393] The terminal device supports a store-and-forward mode of a satellite, and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the store-and-forward mode of the satellite, or

[0394] The terminal device supports a first store-and-forward architecture of a satellite, and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the first store-and-forward architecture of the satellite, or

[0395] The terminal device supports a second store-and-forward architecture of a satellite, and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the second store-and-forward architecture of the satellite.

[0396] In some embodiments, the first communication unit 2001 is further configured to:

[0397] send a second message, the second message being a request message in a mobility management process;

[0398] receive a third message, the third message being used to indicate that the first satellite rejects the request of the second message; the third message includes fourth indication information, the fourth indication information being used to indicate that the reason why the request of the second message is rejected is related to a store-and-forward mode.

[0399] In some embodiments, the fourth indication information indicates that the reason includes that the first satellite does not support roaming.

[0400] In some embodiments, the second message includes an attach request message and / or a tracking area update (TAU) request message.

[0401] The first communication unit in the terminal device can be implemented by a transceiver in the terminal device. The first determination unit, the second determination unit, and the third determination unit in the terminal device can be implemented by a processor in the terminal device.

[0402] FIG. 21 is a structural composition schematic diagram of the first satellite according to an embodiment of the present application. As shown in FIG. 21, the first satellite 2100 includes:

[0403] The second communication unit 2101 is configured to send first information or receive second information, the first information or the second information being used to determine whether a first cell of a first satellite allows camping and / or access of the terminal device;

[0404] The first information is related to a store-and-forward architecture supported by the first satellite, and the second information is related to a store-and-forward architecture supported by the terminal device.

[0405] The store-and-forward architecture is related to core network functions supported by a satellite in a store-and-forward mode.

[0406] In some embodiments, the store-and-forward architecture includes one or more of the following:

[0407] A first store-and-forward architecture, a satellite supporting the first store-and-forward architecture supporting part of core network functions;

[0408] A second store-and-forward architecture, a satellite supporting the second store-and-forward architecture supporting all core network functions.

[0409] In some embodiments, the first satellite supports a first store-and-forward architecture or a second store-and-forward architecture.

[0410] In some embodiments, the terminal device supports a first store-and-forward architecture and / or a second store-and-forward architecture of a satellite.

[0411] In some embodiments, the first information is used to indicate a store-and-forward architecture supported by the first satellite.

[0412] In some embodiments,

[0413] The first cell allows the terminal device to camp and / or access, wherein the terminal device supports a store-and-forward architecture indicated by the first indication information; and / or,

[0414] The first cell does not allow the terminal device to camp and / or access, wherein the terminal device does not support a store-and-forward architecture indicated by the first indication information.

[0415] In some embodiments, the first cell allows the terminal device to camp and / or access, wherein the terminal device supports a store-and-forward architecture indicated by the first indication information, and the first cell allows camping and / or access; and / or,

[0416] The first cell does not allow the terminal device to camp and / or access, wherein the terminal device does not support a store-and-forward architecture indicated by the first indication information, or the first cell does not allow camping and / or access.

[0417] In some embodiments, the second communication unit 2101 is further configured to send third information, the third information being used to indicate whether the first cell allows camping and / or accessing.

[0418] In some embodiments, the first information is used to indicate whether the first cell allows the first terminal device and / or the second terminal device to camp and / or access;

[0419] The first terminal device supports a first store-and-forward architecture of a satellite;

[0420] The second terminal device supports a second store-and-forward architecture of a satellite.

[0421] In some embodiments, the first information comprises one or more of:

[0422] First indication information, the first indication information being used to indicate whether the first cell allows the first terminal device to camp and / or access;

[0423] Second indication information, the second indication information being used to indicate whether the first cell allows the second terminal device to camp and / or access.

[0424] In some embodiments,

[0425] The first cell allows the terminal device to camp and / or access, wherein the terminal device belongs to terminal devices that the first information indicates the first cell allows to access; and / or,

[0426] The first cell does not allow the terminal device to camp and / or access, wherein the terminal device belongs to terminal devices that the first information indicates the first cell does not allow to access.

[0427] In some embodiments, the terminal device belongs to terminal devices that the first information indicates the first cell allows to access comprises one or more of:

[0428] The terminal device supports the first store-and-forward architecture of a satellite, and the first information indicates that the first cell allows the first terminal device to camp and / or access;

[0429] The terminal device supports the second store-and-forward architecture of a satellite, and the first information indicates that the first cell allows the second terminal device to camp and / or access.

[0430] In some embodiments, the terminal device belongs to terminal devices that the first information indicates the first cell does not allow to access comprises one or more of:

[0431] The terminal device supports the first store-and-forward architecture of the satellite, and the first information indicates that the first terminal device is not allowed to camp on and / or access the first cell.

[0432] The terminal device supports the second store-and-forward architecture of the satellite, and the first information indicates that the second terminal device is not allowed to camp on and / or access the first cell.

[0433] In some embodiments, the first information is included in a system message.

[0434] In some embodiments, the second information is used to indicate a store-and-forward architecture of a satellite supported by the terminal device.

[0435] In some embodiments, the second information is included in a first message, and the first message is a message in a random access procedure.

[0436] In some embodiments, the first message is a non-access stratum (NAS) message or a radio resource control (RRC) message.

[0437] In some embodiments, the second communication unit 2101 is further configured to send fourth information, the fourth information being used to indicate whether the first cell allows the terminal device to access.

[0438] In some embodiments, the fourth information indicates that the first cell does not allow the terminal device to access;

[0439] The fourth information is further used to indicate that the reason why the first cell does not allow the terminal device to access is that a store-and-forward architecture of a satellite supported by the terminal device does not include a store-and-forward architecture supported by the first satellite.

[0440] In some embodiments, fifth information is sent, the fifth information being related to a store-and-forward mode of a satellite supported by each of one or more frequency points, and the fifth information being used to determine a measured frequency point and an unmeasured frequency point.

[0441] In some embodiments, the fifth information includes third indication information corresponding to each of the one or more frequency points.

[0442] The third indication information is used to indicate whether a corresponding frequency point supports a store-and-forward mode of a satellite, or the third indication information is used to indicate that a corresponding frequency point supports a first store-and-forward architecture or a second store-and-forward architecture of a satellite.

[0443] In some embodiments, the frequency point is a measured frequency point; and wherein

[0444] The terminal device supports a store-and-forward mode of a satellite, and the third indication information corresponding to the frequency point indicates that the frequency point supports the store-and-forward mode of the satellite, or

[0445] The terminal device supports a first store-and-forward architecture of a satellite, and the third indication information corresponding to the frequency point indicates that the frequency point supports the first store-and-forward architecture of the satellite, or

[0446] The terminal device supports a second store-and-forward architecture of a satellite, and the third indication information corresponding to the frequency point indicates that the frequency point supports the second store-and-forward architecture of the satellite.

[0447] In some embodiments, the frequency point is not a measurement frequency point; wherein

[0448] The terminal device supports a store-and-forward mode of a satellite, and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the store-and-forward mode of the satellite, or

[0449] The terminal device supports a first store-and-forward architecture of a satellite, and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the first store-and-forward architecture of the satellite, or

[0450] The terminal device supports a second store-and-forward architecture of a satellite, and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the second store-and-forward architecture of the satellite.

[0451] In some embodiments, the second communication unit 2101 is further configured to:

[0452] receive a second message, the second message being a request message in a mobility management process;

[0453] send a third message, the third message being used to indicate that the first satellite rejects the request of the second message; the third message includes fourth indication information, the fourth indication information being used to indicate that the reason why the request of the second message is rejected is related to a store-and-forward mode.

[0454] In some embodiments, the reason indicated by the fourth indication information includes that the first satellite does not support roaming.

[0455] In some embodiments, the second message includes an attach request message and / or a tracking area update (TAU) request message.

[0456] The second communication unit in the first satellite can be implemented by a transceiver in the first satellite.

[0457] Those skilled in the art should understand that the above description of the terminal device or the first satellite of the embodiments of the present application can be understood with reference to the description of the wireless communication method of the embodiments of the present application.

[0458] FIG. 22 is a schematic structural diagram of a communication device 2200 provided in an embodiment of the present application. The communication device can be a terminal device or a first satellite. The communication device 2200 shown in FIG. 22 includes a processor 2210. The processor 2210 can invoke and run a computer program from a memory to implement the method in the embodiments of the present application.

[0459] Optionally, as shown in FIG. 22, the communication device 2200 can further include a memory 2220. The processor 2210 can invoke and run a computer program from the memory 2220 to implement the method in the embodiments of the present application.

[0460] The memory 2220 can be a separate device independent of the processor 2210, or can be integrated in the processor 2210.

[0461] Optionally, as shown in FIG. 22, the communication device 2200 can further include a transceiver 2230. The processor 2210 can control the transceiver 2230 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0462] The transceiver 2230 can include a transmitter and a receiver. The transceiver 2230 can further include an antenna, and the number of antennas can be one or more.

[0463] Optionally, the communication device 2200 can be specifically a first satellite of the embodiments of the present application, and the communication device 2200 can implement the corresponding processes implemented by the first satellite in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein.

[0464] Optionally, the communication device 2200 can be specifically a terminal device of the embodiments of the present application, and the communication device 2200 can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein.

[0465] FIG. 23 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 2300 shown in FIG. 23 includes a processor 2310. The processor 2310 can invoke and run a computer program from a memory to implement the method in the embodiments of the present application.

[0466] Optionally, as shown in FIG. 23, the chip 2300 can further include a memory 2320. The processor 2310 can invoke and run a computer program from the memory 2320 to implement the method in the embodiments of the present application.

[0467] The memory 2320 can be a separate device independent of the processor 2310, or can be integrated in the processor 2310.

[0468] Optionally, the chip 2300 can further include an input interface 2330. The processor 2310 can control the input interface 2330 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

[0469] Optionally, the chip 2300 can further include an output interface 2340. The processor 2310 can control the output interface 2340 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

[0470] Optionally, the chip can be applied to the first satellite in the embodiments of the present application, and the chip can implement the corresponding processes realized by the first satellite in the various methods of the embodiments of the present application. For brevity, details are not described herein.

[0471] Optionally, the chip can be applied to the terminal device in the embodiments of the present application, and the chip can implement the corresponding processes realized by the terminal device in the various methods of the embodiments of the present application. For brevity, details are not described herein.

[0472] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system-level chip, a system chip, a chip system, or a system-on-chip chip, etc.

[0473] FIG. 24 is a schematic block diagram of a communication system 2400 provided by the embodiments of the present application. As shown in FIG. 24, the communication system 2400 includes a terminal device 2410 and a first satellite 2420.

[0474] The terminal device 2410 can be used to implement the corresponding functions realized by the terminal device in the above methods, and the first satellite 2420 can be used to implement the corresponding functions realized by the first satellite in the above methods. For brevity, details are not described herein.

[0475] It should be understood that the processor of the embodiments of the present application can be an integrated circuit chip with a processing capability of signals. In the implementation process, each step of the method embodiments described above can be completed by the integrated logic circuit of hardware in the processor or the instructions in the form of software. The processor described above can be a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, a discrete gate or transistor logic device, a discrete hardware component. The disclosed methods, steps and logic block diagrams in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as a hardware coding processor for execution, or a combination of hardware and software modules in the coding processor for execution. The software module can be located in a random access memory, a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register or other mature storage medium in the art. The storage medium is located in the storage, and the processor reads the information in the storage, and combines the hardware to complete the steps of the above method.

[0476] It is to be understood that the memory in the embodiments of the present application can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. Among them, the nonvolatile memory can be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or a flash memory. The volatile memory can be a random access memory (Random Access Memory, RAM) used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the system and method described herein is intended to include, but not limited to, these and any other suitable types of memory.

[0477] It should be understood that the above-mentioned memory is exemplary but not limiting, for example, the memory in the embodiments of the present application can also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and the like. That is, the memory in the embodiments of the present application is intended to include, but not limited to, these and any other suitable types of memory.

[0478] The embodiment of the present application further provides a computer readable storage medium for storing the computer program.

[0479] Optionally, the computer readable storage medium can be applied to the first satellite in the embodiment of the present application, and the computer program makes the computer execute the corresponding process realized by the first satellite in the various methods of the embodiment of the present application. For the sake of brevity, details are not described herein.

[0480] Optionally, the computer readable storage medium can be applied to the terminal device in the embodiment of the present application, and the computer program makes the computer execute the corresponding process realized by the terminal device in the various methods of the embodiment of the present application. For the sake of brevity, details are not described herein.

[0481] The embodiment of the present application further provides a computer program product comprising computer program instructions.

[0482] Optionally, the computer program product can be applied to the first satellite in the embodiment of the present application, and the computer program instructions make the computer execute the corresponding process realized by the first satellite in the various methods of the embodiment of the present application. For the sake of brevity, details are not described herein.

[0483] Optionally, the computer program product can be applied to the terminal device in the embodiment of the present application, and the computer program instructions make the computer execute the corresponding process realized by the terminal device in the various methods of the embodiment of the present application. For the sake of brevity, details are not described herein.

[0484] The embodiment of the present application further provides a computer program.

[0485] Optionally, the computer program can be applied to the first satellite in the embodiment of the present application, and when the computer program runs on the computer, makes the computer execute the corresponding process realized by the first satellite in the various methods of the embodiment of the present application. For the sake of brevity, details are not described herein.

[0486] Optionally, the computer program can be applied to the terminal device in the embodiment of the present application, and when the computer program runs on the computer, makes the computer execute the corresponding process realized by the terminal device in the various methods of the embodiment of the present application. For the sake of brevity, details are not described herein.

[0487] Those skilled in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized in electronic hardware or in combination of computer software and electronic hardware. Whether the functions are realized in hardware or software mode depends on the specific application and design constraints of the technical solutions. The skilled person can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0488] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0489] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0490] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0491] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit.

[0492] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the essential part or part of the technical solutions that make contributions to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program code storage media.

[0493] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, the method comprising: receiving, by a terminal device, first information or transmitting, by the terminal device, second information, the first information or the second information being used to determine whether a first cell of a first satellite allows camping and / or access of the terminal device; the first information being related to a store-and-forward architecture supported by the first satellite, and the second information being related to a store-and-forward architecture supported by the terminal device; the store-and-forward architecture being related to core network functions supported by a satellite in a store-and-forward mode. 2.The method of claim 1, wherein the store-and-forward architecture comprises one or more of: a first store-and-forward architecture, a satellite supporting the first store-and-forward architecture supporting partial core network functions; a second store-and-forward architecture, a satellite supporting the second store-and-forward architecture supporting full core network functions. 3.The method of claim 1 or 2, wherein: the first satellite supports the first store-and-forward architecture or the second store-and-forward architecture. 4.The method of any one of claims 1 to 3, wherein: the terminal device supports the first store-and-forward architecture and / or the second store-and-forward architecture of a satellite; 5. The method according to any one of claims 1 to 4, wherein, the first information is used to indicate the store-and-forward architecture supported by the first satellite.

6. The method of claim 5, wherein, The method further comprises one or more of: determining, by the terminal device, that the first cell allows camping and / or access of the terminal device, wherein the terminal device supports the store-and-forward architecture indicated by the first indication information; determining, by the terminal device, that the first cell does not allow camping and / or access of the terminal device, wherein the terminal device does not support the store-and-forward architecture indicated by the first indication information.

7. The method of claim 5, wherein, The method further comprises one or more of: determining, by the terminal device, that the first cell allows camping and / or access of the terminal device, wherein the terminal device supports the store-and-forward architecture indicated by the first indication information, and the first cell allows camping and / or access; determining, by the terminal device, that the first cell does not allow camping and / or access of the terminal device, wherein the terminal device does not support the store-and-forward architecture indicated by the first indication information, or the first cell does not allow camping and / or access.

8. The method of claim 7, wherein, The method further comprises: receiving, by the terminal device, third information, the third information being used to indicate whether the first cell allows camping and / or access.

9. The method according to any one of claims 1 to 4, wherein, the first information is used to indicate whether the first cell allows camping and / or access of a first terminal device and / or a second terminal device; the first terminal device supports the first store-and-forward architecture of a satellite; the second terminal device supports the second store-and-forward architecture of a satellite.

10. The method of claim 9, wherein, the first information comprises one or more of: first indication information, the first indication information being used to indicate whether the first cell allows camping and / or access of the first terminal device; second indication information, the second indication information being used to indicate whether the first cell allows camping and / or access of the second terminal device.

11. The method of claim 9 or 10, wherein, The method further comprises one or more of: The terminal device determines that the first cell allows the terminal device to camp on and / or access, wherein the terminal device belongs to terminal devices allowed to access the first cell indicated by the first information; The terminal device determines that the first cell does not allow the terminal device to camp on and / or access, wherein the terminal device belongs to terminal devices not allowed to access the first cell indicated by the first information.

12. The method of claim 11, wherein, The terminal device belongs to terminal devices allowed to access the first cell indicated by the first information, including one or more of the following: The terminal device supports the first store-and-forward architecture of the satellite, and the first information indicates that the first cell allows the first terminal device to camp on and / or access; The terminal device supports the second store-and-forward architecture of the satellite, and the first information indicates that the first cell allows the second terminal device to camp on and / or access.

13. The method of claim 11, wherein, The terminal device belongs to terminal devices not allowed to access the first cell indicated by the first information, including one or more of the following: The terminal device supports the first store-and-forward architecture of the satellite, and the first information indicates that the first cell does not allow the first terminal device to camp on and / or access; The terminal device supports the second store-and-forward architecture of the satellite, and the first information indicates that the first cell does not allow the second terminal device to camp on and / or access.

14. The method according to any one of claims 1 to 13, wherein, The first information is contained in a system message.

15. The method according to any one of claims 1 to 4, wherein, The second information is used to indicate the store-and-forward architecture of the satellite supported by the terminal device.

16. The method of claim 15, wherein, The second information is contained in a first message, and the first message is a message in a random access process.

17. The method of claim 16, wherein, The first message is a non-access stratum (NAS) message or a radio resource control (RRC) message.

18. The method of any one of claims 15 to 17, wherein, The method further includes: The terminal device receives fourth information, and the fourth information is used to indicate whether the first cell allows the terminal device to access.

19. The method of claim 18, wherein, The fourth information indicates that the first cell does not allow the terminal device to access; The fourth information is further used to indicate that the reason why the first cell does not allow the terminal device to access is that the store-and-forward architecture of the satellite supported by the terminal device does not include the store-and-forward architecture supported by the first satellite.

20. The method of any one of claims 1 to 19, wherein, The method further includes: The terminal device receives fifth information related to the store-and-forward mode of the satellite supported by each frequency point in one or more frequency points, and the fifth information is used to determine the measured frequency points and the non-measured frequency points.

21. The method of claim 20, wherein, The fifth information includes third indication information corresponding to each frequency point in the one or more frequency points; The third indication information is used to indicate whether the corresponding frequency point supports the store-and-forward mode of the satellite, or the third indication information is used to indicate that the corresponding frequency point supports the first store-and-forward architecture or the second store-and-forward architecture of the satellite.

22. The method of claim 21, wherein, The frequency point is a measured frequency point; wherein, The terminal device supports the store-and-forward mode of the satellite and the third indication information corresponding to the frequency point indicates that the frequency point supports the store-and-forward mode of the satellite, or, The terminal device supports a first store-and-forward architecture of a satellite, and the third indication information corresponding to the frequency point indicates that the frequency point supports the first store-and-forward architecture of the satellite, or The terminal device supports a second store-and-forward architecture of a satellite, and the third indication information corresponding to the frequency point indicates that the frequency point supports the second store-and-forward architecture of the satellite.

23. The method of claim 21, wherein The frequency point is not a measurement frequency point; wherein The terminal device supports a store-and-forward mode of a satellite, and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the store-and-forward mode of the satellite, or The terminal device supports a first store-and-forward architecture of a satellite, and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the first store-and-forward architecture of the satellite, or The terminal device supports a second store-and-forward architecture of a satellite, and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the second store-and-forward architecture of the satellite.

24. The method of any one of claims 1 to 23, wherein, The method further comprises: The terminal device sends a second message, the second message being a request message in a mobility management process; The terminal device receives a third message, the third message being used to indicate that a first satellite rejects a request of the second message; the third message includes fourth indication information, the fourth indication information being used to indicate that a reason for rejecting the request of the second message is related to a store-and-forward mode.

25. The method of claim 24, wherein, The reason indicated by the fourth indication information includes: The first satellite does not support roaming.

26. The method of claim 24 or 25, wherein, The second message includes an attach request message and / or a tracking area update (TAU) request message.

27. A wireless communication method, the method comprising: A first satellite sends first information or receives second information, the first information or the second information being used to determine whether a first cell of the first satellite allows camping and / or access of the terminal device; The first information is related to a store-and-forward architecture supported by the first satellite, and the second information is related to a store-and-forward architecture of a satellite supported by the terminal device; The store-and-forward architecture is related to core network functions supported by a satellite in a store-and-forward mode.

28. The method of claim 27, wherein, The store-and-forward architecture includes one or more of the following: A first store-and-forward architecture, a satellite supporting the first store-and-forward architecture supports part of core network functions; A second store-and-forward architecture, a satellite supporting the second store-and-forward architecture supports all core network functions.

29. The method of claim 27 or 28, wherein The first satellite supports a first store-and-forward architecture or a second store-and-forward architecture.

30. The method of any one of claims 27 to 29, wherein The terminal device supports a first store-and-forward architecture and / or a second store-and-forward architecture of a satellite.

31. The method of any one of claims 27 to 30, wherein, The first information is used to indicate a store-and-forward architecture supported by the first satellite.

32. The method of claim 31, wherein The first cell allows the terminal device to camp and / or access, wherein the terminal device supports a store-and-forward architecture indicated by the first indication information; and / or, The first cell does not allow the terminal device to camp on and / or access, wherein the terminal device does not support the store-and-forward architecture indicated by the first indication information. 33.The method of claim 31, wherein, The first cell allows the terminal device to camp on and / or access, wherein the terminal device supports the store-and-forward architecture indicated by the first indication information, and the first cell allows camping on and / or access; and / or, The first cell does not allow the terminal device to camp on and / or access, wherein the terminal device does not support the store-and-forward architecture indicated by the first indication information, or the first cell does not allow camping on and / or access.

34. The method of claim 33, wherein, The method further comprises: The first satellite sends third information, the third information being used to indicate whether the first cell allows camping on and / or access.

35. The method of any one of claims 27 to 30, wherein, The first information is used to indicate whether the first cell allows a first terminal device and / or a second terminal device to camp on and / or access; The first terminal device supports a first store-and-forward architecture of a satellite; The second terminal device supports a second store-and-forward architecture of a satellite.

36. The method of claim 35, wherein, The first information comprises one or more of: First indication information, the first indication information being used to indicate whether the first cell allows the first terminal device to camp on and / or access; Second indication information, the second indication information being used to indicate whether the first cell allows the second terminal device to camp on and / or access. 37.The method of claim 35 or 36, wherein, The first cell allows the terminal device to camp on and / or access, wherein the terminal device belongs to terminal devices allowed to access the first cell indicated by the first information; and / or, The first cell does not allow the terminal device to camp on and / or access, wherein the terminal device belongs to terminal devices not allowed to access the first cell indicated by the first information.

38. The method of claim 37, wherein, The terminal device belongs to terminal devices allowed to access the first cell indicated by the first information comprises one or more of: The terminal device supports the first store-and-forward architecture of a satellite, and the first information indicates that the first cell allows the first terminal device to camp on and / or access; The terminal device supports the second store-and-forward architecture of a satellite, and the first information indicates that the first cell allows the second terminal device to camp on and / or access.

39. The method of claim 37, wherein, The terminal device belongs to terminal devices not allowed to access the first cell indicated by the first information comprises one or more of: The terminal device supports the first store-and-forward architecture of a satellite, and the first information indicates that the first cell does not allow the first terminal device to camp on and / or access; The terminal device supports the second store-and-forward architecture of a satellite, and the first information indicates that the first cell does not allow the second terminal device to camp on and / or access. The first information is contained in a system message.

40. The method of any one of claims 27 to 39, wherein, The second information is used to indicate a store-and-forward architecture of a satellite supported by the terminal device.

41. The method of any one of claims 27 to 30, wherein, The second information is contained in a first message, the first message being a message in a random access procedure.

42. The method of claim 41, wherein, ​ 43. The method of claim 42, wherein, The first message is a non-access stratum (NAS) message or a radio resource control (RRC) message.

44. The method of any one of claims 41 to 43, wherein, The method further includes: The first satellite sends fourth information, and the fourth information is used to indicate whether the first cell allows the terminal device to access.

45. The method of claim 44, wherein, The fourth information indicates that the first cell does not allow the terminal device to access. The fourth information is further used to indicate that the reason why the first cell does not allow the terminal device to access is that a store-and-forward architecture of a satellite supported by the terminal device does not include a store-and-forward architecture supported by the first satellite.

46. The method of any one of claims 27 to 45, wherein, The method further includes: The first satellite sends fifth information, and the fifth information is related to a store-and-forward mode of a satellite supported by each of one or more frequency points, and the fifth information is used to determine a measured frequency point and an unmeasured frequency point.

47. The method of claim 46, wherein, The fifth information includes third indication information corresponding to each of the one or more frequency points. The third indication information is used to indicate whether the corresponding frequency point supports the store-and-forward mode of the satellite, or the third indication information is used to indicate that the corresponding frequency point supports a first store-and-forward architecture or a second store-and-forward architecture of the satellite.

48. The method of claim 47, wherein, The frequency point is a measured frequency point; wherein, The terminal device supports the store-and-forward mode of the satellite and the third indication information corresponding to the frequency point indicates that the frequency point supports the store-and-forward mode of the satellite, or The terminal device supports the first store-and-forward architecture of the satellite and the third indication information corresponding to the frequency point indicates that the frequency point supports the first store-and-forward architecture of the satellite, or The terminal device supports the second store-and-forward architecture of the satellite and the third indication information corresponding to the frequency point indicates that the frequency point supports the second store-and-forward architecture of the satellite.

49. The method of claim 47, wherein, The frequency point is not a measured frequency point; wherein, The terminal device supports the store-and-forward mode of the satellite and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the store-and-forward mode of the satellite, or The terminal device supports the first store-and-forward architecture of the satellite and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the first store-and-forward architecture of the satellite, or The terminal device supports the second store-and-forward architecture of the satellite and the third indication information corresponding to the frequency point does not indicate that the frequency point supports the second store-and-forward architecture of the satellite.

50. The method of any one of claims 27 to 49, wherein, The method further includes: The first satellite receives a second message, and the second message is a request message in a mobility management process; The first satellite sends a third message, and the third message is used to indicate that the first satellite rejects the request of the second message; the third message includes fourth indication information, and the fourth indication information is used to indicate that the reason why the request of the second message is rejected is related to the store-and-forward mode.

51. The method of claim 50, wherein, The reason indicated by the fourth indication information includes: The first satellite does not support roaming.

52. The method of claim 50 or 51, wherein, The second message includes an attach request message and / or a tracking area update (TAU) request message.

53. A terminal device, comprising: The first communication unit is configured to receive first information or transmit second information, the first information or the second information being used to determine whether a first cell of a first satellite allows camping and / or access of the terminal device; The first information relates to a store-and-forward architecture supported by the first satellite, and the second information relates to a store-and-forward architecture supported by a satellite supported by the terminal device; The store-and-forward architecture relates to core network functions supported by a satellite in a store-and-forward mode.

54. A first satellite, comprising: The second communication unit is configured to transmit first information or receive second information, the first information or the second information being used to determine whether a first cell of a first satellite allows camping and / or access of the terminal device; The first information relates to a store-and-forward architecture supported by the first satellite, and the second information relates to a store-and-forward architecture supported by a satellite supported by the terminal device; The store-and-forward architecture relates to core network functions supported by a satellite in a store-and-forward mode. The transceiver, the processor and the memory, the memory being configured to store a computer program, the processor being configured to invoke and run the computer program stored in the memory to cooperate with the transceiver to perform the method according to any one of claims 1 to 26.

55. A terminal device comprising: The transceiver, the processor and the memory, the memory being configured to store a computer program, the processor being configured to invoke and run the computer program stored in the memory to cooperate with the transceiver to perform the method according to any one of claims 27 to 52.

56. A first satellite, comprising: The processor is configured to invoke and run a computer program from the memory, so that the device in which the chip is installed performs the method according to any one of claims 1 to 26, or performs the method according to any one of claims 27 to 52.

57. A chip comprising:

58. A computer readable storage medium configured to store a computer program, execution of the computer program causing a computer to perform the method according to any one of claims 1 to 26, or to perform the method according to any one of claims 27 to 52.

59. A computer program product comprising computer program instructions, execution of the computer program instructions causing a computer to perform the method according to any one of claims 1 to 26, or to perform the method according to any one of claims 27 to 52.

60. A computer program, execution of the computer program causing a computer to perform the method according to any one of claims 1 to 26, or to perform the method according to any one of claims 27 to 52. ​

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