Wireless communication method, terminal, and network-side device

Abstract

The present application relates to the field of communications, and discloses a wireless communication method, a terminal, and a network-side device. The wireless communication method in embodiments of the present application is applied to a terminal. When the terminal accesses a network by means of a first satellite of a first orbit, a QoS parameter of a first session of the terminal is a first QoS parameter. The method comprises: when the terminal changes from the first satellite to a second satellite of a second orbit, the terminal receives a second QoS parameter of the first session.

Description

Wireless communication methods, terminals and network-side equipment

[0001] Cross-references to related applications

[0002] This application is based on Chinese Patent Application No. 202510064904.9, filed on January 15, 2025, and the priority of that Chinese Patent Application is incorporated herein by reference in its entirety. Technical Field

[0003] This application relates to the field of communication technology, and more specifically, to a wireless communication method, a terminal, and a network-side device. Background Technology

[0004] User equipment (UE) can move between different satellites. For example, if it is connected to a geostationary Earth Orbit (GEO) satellite, it can move to a low-Earth Orbit (LEO) satellite; or if it is connected to an LEO satellite, it can move to a medium-Earth Orbit (MEO) satellite.

[0005] When a UE moves between satellites, the orbit (orbit) it accesses may also change. For example, when a UE switches from a GEO satellite to an LEO satellite, the orbit it accesses also changes from GEO to LEO.

[0006] However, satellites in different orbits support different Quality of Service (QoS) parameters. For example, GEO satellites only support a transmission rate of about 3 kilobits per second (kbps), while LEO satellites can support a transmission rate of megabits per second (mbps), such as 90 mbps. Therefore, if the UE continues to transmit data according to the QoS parameters assigned to it when accessing the source satellite after completing its orbital shift, the QoS parameters used by the UE will mismatch with those supported by the target satellite, thus affecting the UE's data transmission performance. Summary of the Invention

[0007] This application provides a wireless communication method, a terminal, and a network-side device that can guarantee the data transmission performance of the terminal.

[0008] In a first aspect, a wireless communication method is provided, the method being applied to a terminal, wherein when the terminal accesses a network via a first satellite in a first orbit, the QoS parameter of the terminal's first session is a first QoS parameter;

[0009] The method includes:

[0010] In the event that the terminal changes from the first satellite to a second satellite in a second orbit, the terminal receives the second QoS parameters of the first session.

[0011] Secondly, a wireless communication method is provided, executed by a first network-side device, the method comprising:

[0012] The first network-side device sends the second Quality of Service (QoS) parameters for the first session;

[0013] In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

[0014] Thirdly, a wireless communication method is provided, executed by a second network-side device, the method comprising:

[0015] The second network-side device sends the second Quality of Service (QoS) parameters of the first session to the terminal through the access network device corresponding to the second track.

[0016] Wherein, when the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

[0017] Fourthly, a wireless communication method is provided, executed by a third network-side device, the method comprising:

[0018] The third network-side device receives the fourth Quality of Service (QoS) parameters of the first session;

[0019] In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the fifth QoS parameter.

[0020] Fifthly, a wireless communication apparatus is provided, the apparatus being applied to a terminal, wherein when the terminal accesses a network via a first satellite in a first orbit, the Quality of Service (QoS) parameter of the terminal's first session is a first QoS parameter;

[0021] The device includes:

[0022] The first receiving module is configured to receive the second QoS parameters of the first session when the terminal changes from the first satellite to a second satellite in a second orbit.

[0023] Sixthly, a wireless communication device is provided, comprising:

[0024] The first sending module is used to send the second Quality of Service (QoS) parameters for the first session.

[0025] In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

[0026] In a seventh aspect, a wireless communication device is provided, comprising:

[0027] The first sending module is used to send the second Quality of Service (QoS) parameters of the first session to the terminal through the access network device corresponding to the second track;

[0028] Wherein, when the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

[0029] Eighthly, a wireless communication device is provided, comprising:

[0030] The receiving module is used to receive the fourth Quality of Service (QoS) parameters of the first session;

[0031] In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the fifth QoS parameter.

[0032] A ninth aspect provides a wireless communication apparatus configured to perform the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect, or implement the steps of the method described in the third aspect, or implement the steps of the method described in the fourth aspect.

[0033] In a tenth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0034] In an eleventh aspect, a terminal is provided in which, when the terminal accesses a network via a first satellite in a first orbit, the Quality of Service (QoS) parameter of the terminal's first session is a first QoS parameter; the terminal includes a processor and a communication interface, wherein the communication interface is used to receive a second QoS parameter of the first session when the terminal changes from the first satellite to a second satellite in a second orbit.

[0035] In a twelfth aspect, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect, or implementing the steps of the method as described in the third aspect, or implementing the steps of the method as described in the fourth aspect.

[0036] In a thirteenth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send a second Quality of Service (QoS) parameter for a first session;

[0037] In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

[0038] In a fourteenth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send a second Quality of Service (QoS) parameter of a first session to a terminal through an access network device corresponding to a second track;

[0039] Wherein, when the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

[0040] In a fifteenth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to receive a fourth Quality of Service (QoS) parameter of a first session;

[0041] In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the fifth QoS parameter.

[0042] In a sixteenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect, or the steps of the method described in the fourth aspect.

[0043] In a seventeenth aspect, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal is configured to perform the steps of the method described in the first aspect, and the network-side device is configured to perform the steps of the method described in the second aspect, or implement the steps of the method described in the third aspect, or implement the steps of the method described in the fourth aspect.

[0044] Eighteenthly, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method as described in the first aspect, or the steps of the method as described in the second aspect, or the steps of the method as described in the third aspect, or the steps of the method as described in the fourth aspect.

[0045] In a nineteenth aspect, a computer program / program product is provided, the computer program / program product being stored in a storage medium, the computer program / program product being executed by at least one processor to implement the steps of the wireless communication method as described in the first or second aspect, or the steps of the method as described in the third aspect, or the steps of the method as described in the fourth aspect.

[0046] In this embodiment of the application, when the terminal changes from the first satellite in the first orbit to the second satellite in the second orbit, the terminal can modify the QoS parameters of the first session by receiving a second QoS parameter that is different from the first QoS parameter, thereby ensuring the data transmission performance of the terminal. Attached Figure Description

[0047] Figure 1 is a schematic diagram of a communication system architecture provided in an embodiment of this application.

[0048] Figure 2 is a schematic diagram of a PDU session establishment process provided in an embodiment of this application.

[0049] Figures 3 to 9 are schematic flowcharts of the wireless communication method provided in the embodiments of this application.

[0050] Figures 10 to 13 are schematic block diagrams of the wireless communication device provided in the embodiments of this application.

[0051] Figure 14 is a schematic block diagram of a communication device provided in an embodiment of this application.

[0052] Figure 15 is a schematic diagram of the hardware structure of a terminal provided in an embodiment of this application.

[0053] Figure 16 is a schematic block diagram of a network-side device provided in an embodiment of this application. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0055] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0056] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as the sender explicitly informing the receiver of specific information, the required operation, or the requested result in the instruction sent. An indirect instruction can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the required operation or requested result based on the judgment result.

[0057] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0058] Figure 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as User Equipment (UE), and can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. Furthermore, terminal 11 can be any of the terminals described above, or it can be a chip within a terminal, such as a modem chip, a system-on-chip (SoC), etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 can include access network equipment or core network equipment, wherein access network equipment can also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment can include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (WiFi) nodes, etc.Among them, base stations can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), Non-Terrestrial Network (NTN) equipment (such as satellite or high altitude platform stations). The term "base station" can be any suitable term in the field, such as "station" or any other appropriate term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to specific technical terms. It should be noted that the embodiments of this application only use the base station in the NR system as an example for introduction, and do not limit the specific type of base station.

[0059] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), and Binding Support. Functions include BSF, Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), Network Data Analytics Function (NWDAF), Internet Protocol Multimedia System (IMS), and Non-Terrestrial Network (NTN) equipment (such as satellite or high altitude platform station).It should be noted that the embodiments of this application only use the core network equipment in the NR system as an example for introduction, and do not limit the specific type of core network equipment. If the name of the core network equipment mentioned in the embodiments of this application changes in subsequent protocol versions (e.g., 6G), it is also within the scope of protection of this application.

[0060] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0061] To facilitate a better understanding of the embodiments of this application, the related technologies are described.

[0062] (1) Satellite access.

[0063] A satellite communication system consists of three parts: the satellite terminal, the ground terminal, and the user terminal. The satellite terminal acts as a relay station in the air, amplifying electromagnetic waves transmitted from the ground station and sending them back; alternatively, the satellite terminal may house base station functionality and / or core network functionality. Satellite terminals can be categorized according to their operating orbit; satellite communication systems are generally classified into the following three types:

[0064] Low-Earth Orbit (LEO) satellite communication systems: located at altitudes of 500–2000 km above the Earth, they offer relatively low transmission latency and power consumption, but the coverage area of ​​each satellite is also relatively small.

[0065] Medium Earth Orbit (MEO) satellite communication systems are located at altitudes of 2,000–20,000 km above the Earth's surface. While their transmission delays are greater than those of LEO satellites, their coverage area is also larger.

[0066] Geostationary Earth Orbit (GEO) satellite communication systems operate at an altitude of 35,800 km above the Earth's surface, i.e., in geostationary orbit. Theoretically, global coverage can be achieved using just three high-orbit satellites.

[0067] The UE can move between satellites in different orbits. For example, when connected to a GEO satellite, it can reselect or switch to a LEO satellite; or, when connected to a LEO satellite, it can reselect or switch to a MEO satellite.

[0068] (2) Protocol Data Unit (PDU) session establishment process.

[0069] Figure 2 is a schematic diagram of a PDU session establishment process 200 provided in an embodiment of this application.

[0070] As shown in Figure 2, the PDU session establishment process 200 may include:

[0071] S201, the UE sends a UL NAS transmission (SM container (PDU session establishment request)) to the AMF via the RAN.

[0072] The UE sends a NAS message (e.g., an uplink (UL) NAS transmission message) to the AMF, which includes the NAS message sent by the UE to the SMF. The NAS message sent by the UE to the SMF is a PDU session establishment request, which is contained within a session management (SM) container.

[0073] When the RAN forwards NAS messages (such as uplink (UL) NAS transmission messages) to the AMF, it carries the UE's current Radio Access Technology (RAT) type. For UEs accessing via 5G, the RAT type is NR.

[0074] S202, AMF sends Nsmf_PDU session_create SM context request (RAT type, SM container (PDU session establishment request)) to SMF.

[0075] AMF selects SMF and forwards the SM container to SMF, carrying the RAT type.

[0076] S203, SMF sends an N4 session establishment request (RAT type) to UPF.

[0077] Based on the UE's PDU session establishment request, the SMF determines the PDU session and the QoS parameters corresponding to the QoS flow of the PDU session, and sends an N4 session establishment request to the UPF, carrying the RAT type and QoS parameters.

[0078] The QoS parameters include:

[0079] Session-Aggregate Maximum Bit Rate (AMBR): The maximum rate that all non-Guaranteed Bit Rate (GBR) QoS flows within a PDU session can use.

[0080] Guaranteed Flow Bit Rate (GFBR): The rate that a QoS flow of a certain Guaranteed Bit Rate (GBR) type can guarantee in a PDU session.

[0081] Maximum Flow Bit Rate (MFBR): The maximum rate that a QoS flow of a GBR type can use in a PDU session.

[0082] Maximum Packet Loss Rate (MPLR): The maximum percentage of packets lost during transmission through a GBR type QoS flow in a PDU session.

[0083] S204, UPF sends an N4 session establishment response (UPF channel information) to SMF.

[0084] UPF allocates UPF tunnel info corresponding to the PDU session to the UE and sends it to SMF through the N4 session establishment response.

[0085] S205, SMF sends Namf_Communication_N1N2 message transmission (N2(QoS configuration, session-AMBR), N1 SM NAS container((PDU session establishment accept(QoS parameters))) to AMF.

[0086] SMF generates information to be sent to the RAN and information to be sent to the UE.

[0087] The information sent to the RAN is contained in the N2 SM information, which includes parameters such as QoS configuration (Profile) and session-AMBR. The QoS configuration includes parameters such as GFBR, MFBR, and MPLR.

[0088] The information sent to the UE is contained in the N1 SM container, which includes the PDU Session Establishment Accept message, which contains parameters such as QoS parameters.

[0089] S206, AMF sends an N2 PDU session request (N2 SM message, NAS message) to RAN.

[0090] AMF sends information intended for the RAN (i.e., N2 SM messages) and information intended for the UE (i.e., NAS messages) to the RAN via the N2 PDU session request.

[0091] S207, the RAN sends an RRC (PDU Session Establishment Acceptance (QoS Parameters)) to the UE.

[0092] The RAN stores the N2 SM message and sends the NAS message (i.e., PDU session establishment acceptance) to the UE, and the UE stores the NAS message.

[0093] It should be noted that user equipment (UE) can switch between different satellites. For example, when connected to a geostationary Earth Orbit (GEO) satellite, it can switch to a low-Earth Orbit (LEO) satellite; or, when connected to an LEO satellite, it can switch to a medium-Earth Orbit (MEO) satellite.

[0094] When a UE performs a handover between satellites, the orbit (orbit) accessed by the UE may also change. For example, when a UE switches from a GEO satellite to a LEO satellite, the orbit accessed by the UE will also change from GEO to LEO accordingly.

[0095] However, satellites in different orbits support different Quality of Service (QoS) parameters. For example, GEO satellites only support a transmission rate of about 3 kilobits per second (kbps), while LEO satellites can support a transmission rate of megabits per second (mbps), such as 90 mbps. Therefore, if the UE still transmits data according to the QoS parameters assigned to it when accessing the source satellite after completing an orbit switch, the QoS parameters used by the UE will mismatch with the QoS parameters supported by the target satellite, thus affecting the UE's data transmission performance. For example, when the UE moves from LEO to GEO, if it transmits data using the QoS parameters obtained when accessing LEO, it will cause a large amount of data to accumulate within the UE and / or the network, resulting in the user being unable to use the service. Similarly, when the UE moves from GEO to LEO, if it transmits data using the QoS parameters obtained when accessing GEO, it will lead to excessively low resource utilization within the UE and / or the network, thus reducing communication efficiency. In view of this, embodiments of this application provide a wireless communication method that can guarantee the data transmission performance of the terminal.

[0096] The wireless communication method provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0097] Figure 3 is a schematic flowchart of a wireless communication method 310 according to an embodiment of this application. The method 310 is applied to a terminal, where, when the terminal accesses a network via a first satellite in a first orbit, the Quality of Service (QoS) parameter of the terminal's first session is a first QoS parameter.

[0098] As shown in Figure 3, the wireless communication method 310 may include at least some of the following:

[0099] S311, in the case where the terminal changes from the first satellite to the second satellite in the second orbit, the terminal receives the second QoS parameters of the first session.

[0100] It should be noted that the change of the terminal from the first satellite to the second satellite in the second orbit can be understood or replaced as: the terminal switching from the first satellite to the second satellite in the second orbit; or, the terminal reselecting from the first satellite to the second satellite in the second orbit; or, the terminal changing from accessing the network through the first satellite to accessing the network through the second satellite in the second orbit.

[0101] The terminal described in this application embodiment accessing the network via a second satellite in a second orbit can be understood or replaced as follows:

[0102] The terminal may camp on the network corresponding to the second satellite in the second orbit while in an idle state; or, the terminal may access a 2G network, 3G network, 4G network, 5G network, 6G network, or 7G network through the second satellite in the second orbit; or, the terminal may access an IP Multimedia System (IMS) network through the second satellite in the second orbit.

[0103] The terminal accessing the network via a first satellite as described in this application embodiment can be understood or replaced as follows:

[0104] The terminal may camp on the network corresponding to the first satellite in an idle state; or, the terminal may access a 2G network, 3G network, 4G network, 5G network, 6G network, or 7G network via the first satellite; or, the terminal may access an IMS network via the first satellite; or, the terminal may access a network via the first satellite in a first orbit; or, the terminal may camp on the network corresponding to the first satellite in a first orbit in an idle state; or, the terminal may access a 2G network, 3G network, 4G network, 5G network, 6G network, or 7G network via the first satellite in a first orbit; or, the terminal may access an IMS network via the first satellite in a first orbit.

[0105] For example, the terminal receives the second QoS parameter from the SMF through the target access network device and the target AMF.

[0106] For example, the first session is a PDU session or a Packet Data Network (PDN) connection.

[0107] Of course, the first session can also be a service session or other sessions, and this application does not specifically limit it.

[0108] For example, the first orbit or the second orbit includes at least one of the following:

[0109] Low-Earth Orbit (LEO), Medium-Earth Orbit (MEO), Geostationary Earth Orbit (GEO), and High Elliptical Orbit (HEO). The first satellite or the second satellite can be at least one of the following: LEO satellite, MEO satellite, GEO satellite, and HEO satellite.

[0110] It should be noted that GEO can be understood or replaced with NR GEO, E-UTRAN GEO, Narrow Band (NB) Internet of Things (IoT) GEO, IoT NTN GEO, Wide Band (WB) E-UTRAN GEO, or Long Term Evolution for Machines (LTE-M) GEO. Of course, it can also be other GEOs, and this application embodiment is not limited to them.

[0111] It should be noted that MEO can be understood or replaced by NR MEO, E-UTRAN MEO, NB IOT MEO, IOT NTN MEO, WB E-UTRAN MEO, or LTE-M MEO. Of course, it can also be other MEOs, and this application embodiment is not limited to them.

[0112] It should be noted that LEO can be understood or replaced with NR LEO, E-UTRAN LEO, NB IOT LEO, IOT NTN LEO, WB E-UTRAN LEO, or LTE-M LEO. Of course, other LEOs are also possible, and this application embodiment is not limited to them.

[0113] Wherein, the first orbit is different from the second orbit, or the first satellite is different from the second satellite.

[0114] Of course, the first or second track can also be a track at other altitudes, and this application does not specifically limit it.

[0115] For example, the first QoS parameter includes a QoS parameter corresponding to the first orbit; or the second QoS parameter includes a QoS parameter corresponding to the second orbit. The QoS parameter corresponding to the first orbit can be understood or replaced as: a QoS parameter corresponding to a satellite in the first orbit; or, a QoS parameter matching the first orbit; or, a QoS parameter matching a satellite in the first orbit; or, a QoS parameter corresponding to the first orbit allocated to the terminal by the network; or, a QoS parameter corresponding to a satellite in the first orbit allocated to the terminal by the network. Similarly, the QoS parameter corresponding to the second orbit can be understood or replaced as: a QoS parameter corresponding to a satellite in the second orbit; or, a QoS parameter matching the second orbit; or, a QoS parameter matching a satellite in the second orbit; or, a QoS parameter corresponding to the second orbit allocated to the terminal by the network; or, a QoS parameter corresponding to a satellite in the second orbit allocated to the terminal by the network.

[0116] The first QoS parameter and the second QoS parameter may be partially the same, partially different, or completely different.

[0117] Of course, the first QoS parameter includes the QoS parameter corresponding to the first orbit, and may include, be understood, or be replaced by: the first QoS parameter may include the QoS parameter corresponding to the first satellite, or the first QoS parameter may include the QoS parameter corresponding to the first network environment (e.g., the first transmission rate provided by the network). The second QoS parameter includes the QoS parameter corresponding to the second orbit, and may include, be understood, or be replaced by: the second QoS parameter includes the QoS parameter corresponding to the second satellite, or the first QoS parameter includes the QoS parameter corresponding to the second network environment (e.g., the second transmission rate provided by the network). This application does not specifically limit this.

[0118] For example, the terminal is in an idle state or a connected state.

[0119] For example, when the terminal is in an idle state, it initiates a registration process or a Mobility Registration Update (MRU) process and receives the second QoS parameters of the first session. Alternatively, when the terminal is in a connected state, after sending a handover completion message, it executes the MRU process and receives the second QoS parameters of the first session.

[0120] In this embodiment of the application, when the terminal changes from the first satellite in the first orbit to the second satellite in the second orbit, the terminal can modify the QoS parameters of the first session by receiving a second QoS parameter that is different from the first QoS parameter, thereby ensuring the data transmission performance of the terminal.

[0121] It should be noted that the term "satellite in orbit" can be understood or replaced with descriptions such as "satellite in orbit," "satellite operating in orbit," or "satellite distributed in orbit," and this application does not make any specific limitation in this regard.

[0122] In some embodiments, S311 includes:

[0123] The terminal receives the first message;

[0124] The first message is used to modify the first session, and the first message includes the second QoS parameters.

[0125] For example, the terminal receives the first message from the SMF through the target access network device and the target AMF.

[0126] For example, when the first session is a first PDU session, the first message is used to modify the first PDU session.

[0127] For example, when the first session is a first PDU session, the first message includes a PDU session modification command, and the PDU session modification command includes the identifier of the first PDU session.

[0128] In this embodiment, the terminal receives the second QoS parameter through a first message, enabling the terminal to modify the QoS parameter through the modification process of the first session. This not only enables the reception of the second QoS parameter but also reduces the signaling overhead introduced by modifying the QoS parameter.

[0129] In some embodiments, method 310 further includes at least one of the following:

[0130] The terminal sends an identifier for at least one session;

[0131] The terminal receives status information for at least one session;

[0132] Wherein, each of the at least one sessions corresponds to the second track, or each of the at least one sessions can be used on the second track;

[0133] The status information is used to indicate the status of each session in at least one session.

[0134] For example, before receiving the second QoS parameter, the terminal sends the identifier of the at least one session and receives the status information.

[0135] For example, the at least one session includes the first session.

[0136] For example, the statement that each session corresponds to a track including the second track can be understood or replaced as: each session can use a track including the second track, or each session supports access to a track including the second track, or each session supports a track including the second track, or each session can use a track including the second track. The statement that each session can use the second track can be understood or replaced as: each session supports access to the second track, or each session supports the second track, or each session can use the second track. In other words, the at least one session includes the identifiers of all sessions that support access to the second track, or the at least one session includes the identifiers of all sessions that support the second track, or the at least one session includes the identifiers of all sessions that can use the second track.

[0137] For example, the state of each session can be active or inactive. For instance, the state of each PDU session can be active or inactive.

[0138] In this embodiment, by sending the identifier of the at least one session and receiving the status information, the network can be triggered to modify the QoS parameters of each session in the at least one session at once. That is, not only can the network modify the QoS parameters of the first session, but the efficiency of QoS parameter modification can also be improved.

[0139] In some embodiments, the terminal sends an identifier for at least one session, including:

[0140] The terminal sends a second message, the second message including an identifier of the at least one session, wherein the second message includes one of the following:

[0141] Mobility registration update message;

[0142] Mobility location update message;

[0143] Service Request message.

[0144] For example, the mobility registration update message includes an MRU message.

[0145] The MRU message includes a list of PDU sessions to be activated, and the list of PDU sessions to be activated includes the identifier of the at least one session.

[0146] For example, before the terminal receives the second QoS parameter, the terminal sends the second message to the target AMF through the target access network device, and receives an acceptance message for the second message from the target AMF through the target access network device. The second message includes an identifier of the at least one session, and the acceptance message for the second message includes the status information.

[0147] In this embodiment, the identifier of the at least one session is sent through the second message, so that the terminal can send the identifier of the at least one session through traditional update messages or service request messages. This not only enables the sending of the identifier of the at least one session, but also reduces the signaling overhead introduced by sending the identifier of the at least one session.

[0148] In some embodiments, method 310 further includes:

[0149] The terminal sends a third message;

[0150] The third message is used to modify the session, and the third message includes information about the first session, or the third message includes information about an inactive session of the terminal.

[0151] For example, before the terminal receives the second QoS parameter, the terminal sends the third message to the SMF through the target access network device and the target AMF.

[0152] For example, the information of the session includes the session identifier.

[0153] For example, when the third message is used to modify the first session, and the first session is a first PDU session, the third message includes a PDU session modification command, and the PDU session modification command includes the identifier of the first PDU session.

[0154] For example, when the third message is used to modify an inactive session of the terminal, and the inactive session of the terminal is an inactive PDU session, the third message includes a PDU session modification command, and the PDU session modification command includes an identifier of the inactive PDU session. Here, the inactive session of the terminal is the first session, or the inactive session of the terminal can be a session other than the first session. For example, when the first session is an active session, the inactive session of the terminal can be a session other than the first session. In this case, the terminal needs to modify the QoS parameters of both the first session and the inactive session of the terminal.

[0155] In this embodiment, the terminal can trigger the network to modify the QoS parameters of the first session or a session that the terminal has not activated by sending a third message. This not only enables the network to modify the QoS parameters, but also improves the efficiency of QoS parameter modification.

[0156] In some embodiments, method 310 further includes at least one of the following:

[0157] The terminal sends the first information;

[0158] The terminal receives the second information;

[0159] The terminal stores the second information;

[0160] The terminal determines whether to use the first session or not to use the first session based on the second information.

[0161] Wherein, the first information is used to indicate that the terminal supports access to satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports access to the first orbit and the second orbit, or the first information is used to indicate that the terminal supports the first orbit and the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and the second orbit, or the first information is used to indicate that the terminal supports access to satellites in multiple orbits, or the first information is used to indicate that the terminal supports access to multiple orbits, or the first information is used to indicate that the terminal supports multiple orbits, or the first information is used to indicate that the terminal supports movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits;

[0162] The second information is used to indicate the track corresponding to the first session, or the second information is used to indicate the track that the first session can use.

[0163] For example, the plurality of tracks includes the first track and the second track.

[0164] For example, during the process of the terminal accessing the first satellite, the terminal sends the first information and receives and saves the second information.

[0165] For example, when the terminal changes from a first satellite in the first orbit to a second satellite in the second orbit, the terminal determines whether to use the first session or not to use the first session based on the second information. For instance, if the second information indicates that the orbit corresponding to the first session or the available orbits include the second orbit, the terminal determines to use the first session. If the second information indicates that the orbit corresponding to the first session or the available orbits do not include the second orbit, the terminal determines not to use the first session. Further, if the terminal determines to use the first session, the terminal receives the second QoS parameters. If the terminal determines not to use the first session, the terminal may trigger a session establishment procedure for the PDU.

[0166] In this embodiment, by introducing the first information, the network can determine the second information based on the first information, thereby improving the accuracy of the second information. By introducing the second information, when the terminal changes from the first satellite in the first orbit to the second satellite in the second orbit, the terminal can determine whether it can continue to use the first session based on the second information. Compared with directly establishing a new session, this can save the signaling overhead and latency introduced by session establishment.

[0167] In some embodiments, the terminal sends first information, including:

[0168] The terminal sends a fourth message, the fourth message including the first information, wherein the fourth message is used to establish a session; or

[0169] The terminal receives the second information, including:

[0170] The terminal receives a fifth message, which includes the second information, wherein the fifth message is used to confirm acceptance of the session establishment.

[0171] For example, during the process of the terminal accessing the first satellite, the terminal sends the first information through a fourth message for establishing a session, and receives the second information through a fifth message for confirming acceptance of the session establishment. For instance, the terminal sends the fourth message to the SMF through the source access network device and the source AMF, and receives the fifth message from the SMF through the source access network device and the source AMF.

[0172] For example, the fourth message is used to establish the first session, and the fifth message is used to confirm acceptance of the establishment of the first session. For instance, when the first session is a PDU session, the fourth message is a PDU session establishment message, and the fifth message is a PDU session establishment acceptance message.

[0173] In this embodiment, the terminal sends the first information via a fourth message used to establish a session, which not only enables the transmission of the first information but also reduces the signaling overhead introduced by sending the first information. The terminal receives the second information via a fifth message used to confirm acceptance of the session establishment, which not only enables the reception of the second information but also reduces the signaling overhead introduced by receiving the second information.

[0174] Figure 4 is a schematic flowchart of a wireless communication method 320 according to an embodiment of this application.

[0175] As shown in Figure 4, the wireless communication method 320 may include at least some of the following:

[0176] S321, The first network-side device sends the second Quality of Service (QoS) parameters for the first session;

[0177] In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

[0178] For example, the first network-side device may be an SMF or a network element or device with session management functionality.

[0179] For example, the first network-side device sends the second QoS parameter to the terminal through the target AMF and the target access network device.

[0180] In this embodiment of the application, by sending a second QoS parameter different from the first QoS parameter to modify the QoS parameter of the first session, the data transmission performance of the terminal can be guaranteed when the terminal changes from the first satellite in the first orbit to the second satellite in the second orbit.

[0181] In some embodiments, S321 includes:

[0182] The first network-side device sends a first message;

[0183] The first message is used to modify the first session, and the first message includes the second QoS parameters.

[0184] For example, the first network-side device sends the first message to the terminal through the target AMF and the target access network device.

[0185] In some embodiments, the method 320 further includes at least one of the following:

[0186] The first network-side device sends the third QoS parameter of the first session. The third QoS parameter corresponds to the second QoS parameter and is a QoS parameter sent to the access network device corresponding to the second track.

[0187] The first network-side device sends a fourth QoS parameter of the first session to the third network-side device, the fourth QoS parameter corresponding to the second QoS parameter.

[0188] For example, the access network device corresponding to the second track is the target access network device. For instance, the first network-side device sends the third QoS parameter to the target access network device via the target AMF. The third QoS parameter includes the QoS parameter corresponding to the second track. The difference between the second QoS parameter and the third QoS parameter is that the third QoS parameter is the QoS parameter used by the target access network device, while the second QoS parameter is the QoS parameter used by the terminal.

[0189] For example, the third network-side device is a UPF or a network element or device with similar functionality. For instance, the first network-side device sends the fourth QoS parameter to the UPF. The fourth QoS parameter includes the QoS parameter corresponding to the second track. The difference between the second QoS parameter and the fourth QoS parameter is that the fourth QoS parameter is the QoS parameter used by the UPF, while the second QoS parameter is the QoS parameter used by the terminal.

[0190] In some embodiments, the method 320 further includes:

[0191] The first network-side device receives the third message;

[0192] The third message is used to modify the session, and the third message includes information about the first session, or the third message includes information about an inactive session of the terminal.

[0193] For example, before the first network-side device sends the second QoS parameter, the first network-side device receives the third message from the terminal through the target AMF and the target access network device.

[0194] In some embodiments, the method 320 further includes at least one of the following:

[0195] The first network-side device receives the first information;

[0196] The first network-side device receives the Radio Access Technology (RAT) type from the second satellite in the second orbit;

[0197] The first network-side device determines the second information based on at least one of the following: the first information, the RAT type;

[0198] The first network-side device sends the second information;

[0199] Wherein, the first information is used to indicate that the terminal supports access to satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports access to the first orbit and the second orbit, or the first information is used to indicate that the terminal supports the first orbit and the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and the second orbit, or the first information is used to indicate that the terminal supports access to satellites in multiple orbits, or the first information is used to indicate that the terminal supports access to multiple orbits, or the first information is used to indicate that the terminal supports multiple orbits, or the first information is used to indicate that the terminal supports movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits;

[0200] The second information is used to indicate the track corresponding to the first session, or the second information is used to indicate the track that the first session can use.

[0201] For example, the RAT type can be the RAT type when the terminal accesses the second satellite, which corresponds to the second orbit or the second satellite, and is sent to the SMF by the second satellite through the target AMF. The orbit of the satellite can be identified by the RAT type.

[0202] For example, GEO can correspond to the following RAT types: NR GEO, E-UTRAN GEO, NB IOT GEO, WB E-UTRAN GEO, LTE-M GEO, or IOT NTN GEO. Similarly, MEO can correspond to the following RAT types: NR MEO, E-UTRAN MEO, NB IOT MEO, WB E-UTRAN MEO, LTE-M MEO, or IOT NTN MEO. Furthermore, LEO can correspond to the following RAT types: NR LEO, E-UTRAN LEO, NB IOT LEO, WB E-UTRAN LEO, LTE-M LEO, or IOT NTN LEO.

[0203] The RAT type corresponding to GEO can be understood or replaced with NR GEO, E-UTRAN GEO, NB IOT GEO, WB E-UTRAN GEO, LTE-M GEO, or IOT NTN. NR GEO, E-UTRAN GEO, NB IOT GEO, WB E-UTRAN GEO, LTE-M GEO, and IOT NTN GEO are specific RAT types, and GEO is the track corresponding to the aforementioned RAT type. Similarly, the RAT type corresponding to MEO can be understood or replaced with NR MEO, E-UTRAN MEO, NB IOT MEO, WB E-UTRAN MEO, LTE-M MEO, or IOT NTN MEO. NR MEO, E-UTRAN MEO, NB IOT MEO, WB E-UTRAN MEO, LTE-M MEO, and IOT NTN MEO are specific corresponding RAT types, and MEO is the track corresponding to the aforementioned RAT type. The RAT type corresponding to LEO can be understood or replaced as NR LEO, E-UTRAN LEO, NB IOT LEO, or IOT NTN LEO. Among them, NR LEO, E-UTRAN LEO, NB IOT LEO, WB E-UTRAN LEO, LTE-M LEO, and IOT NTN LEO are specific RAT types, and LEO is the track corresponding to the above RAT types.

[0204] For example, the first network-side device receives first information from the terminal via the source AMF and the source access network device; the first network-side device receives the RAT type from the second satellite; the first network-side device determines second information based on at least one of the following: the first information, the RAT type received from the second satellite; the first network-side device sends the second information to the terminal via the source AMF and the source access network device.

[0205] In some embodiments, the first network-side device receives first information, including:

[0206] The first network-side device receives a fourth message, the fourth message including the first information, wherein the fourth message is used to establish a session; or

[0207] The first network-side device sends the second information, including:

[0208] The first network-side device sends a fifth message, which includes the second information, wherein the fifth message is used to confirm acceptance of the session establishment.

[0209] For example, during the process of the terminal accessing the first satellite, the first network-side device receives the first information through a fourth message for establishing a session, and sends the second information through a fifth message for confirming acceptance of the session establishment. For instance, the first network-side device receives the fourth message from the terminal through the source AMF and the source access network device, and sends the fifth message to the terminal through the source AMF and the source access network device.

[0210] In some embodiments, the first QoS parameter includes a QoS parameter corresponding to the first track; or

[0211] The second QoS parameter includes the QoS parameter corresponding to the second track.

[0212] In some embodiments, the first orbit or the second orbit includes at least one of the following:

[0213] Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

[0214] It should be understood that the wireless communication method 320 includes the process of the first network-side device sending the second QoS parameters. The terminology involved is similar to that of method 310. Therefore, the specific content and the beneficial effects of the corresponding scheme can be referred to the relevant description in method 310. To avoid repetition, it will not be repeated here.

[0215] Figure 5 is a schematic flowchart of a wireless communication method 330 according to an embodiment of this application.

[0216] As shown in Figure 5, the wireless communication method 330 may include at least some of the following:

[0217] S331, the second network-side device sends the second quality of service (QoS) parameters of the first session to the terminal through the access network device corresponding to the second track;

[0218] Wherein, when the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

[0219] For example, the second network-side device may be a target AMF or a network element or device with similar functionality. The access network device corresponding to the second track may be a target access network device.

[0220] In this embodiment of the application, by sending a second QoS parameter different from the first QoS parameter to modify the QoS parameter of the first session, the data transmission performance of the terminal can be guaranteed when the terminal changes from the first satellite in the first orbit to the second satellite in the second orbit.

[0221] In some embodiments, the 330 method further includes:

[0222] The second network-side device receives a second message from the terminal through the access network device;

[0223] The second network-side device receives a first message from the first network-side device through the access network device;

[0224] The second network-side device sends a response message corresponding to the second message to the terminal through the access network device;

[0225] Wherein, S331 includes:

[0226] The second network-side device sends the first message to the terminal through the access network device:

[0227] The second message includes one of the following: mobility registration update message, mobility location update message, and service request message;

[0228] The first message is used to modify the first session, and the first message includes the second QoS parameters.

[0229] For example, before the second network-side device sends the second QoS parameter, the second network-side device receives the second message from the terminal through the access network device, and receives the RAT type from the access network device, and sends the RAT type received from the access network device to the SMF. Then, it receives the first message from the SMF, and sends the response message corresponding to the second message to the terminal through the access network device, and sends the first message to the terminal through the access network device.

[0230] In some embodiments, the second message includes an identifier of at least one session;

[0231] Wherein, each of the at least one sessions corresponds to the second track, or each of the at least one sessions can be used on the second track;

[0232] The method 330 further includes:

[0233] The second network-side device sends status information for at least one session;

[0234] The status information is used to indicate the status of each session in at least one session.

[0235] For example, when the second network-side device receives the second message from the terminal through the target access network device, and the second message includes the identifier of the at least one session, the second network-side device also needs to send the status information to the terminal through the target access network device.

[0236] In some embodiments, the method 330 further includes:

[0237] The second network-side device receives the third message;

[0238] The third message is used to modify the session, and the third message includes information about the first session, or the third message includes information about an inactive session of the terminal.

[0239] For example, the second network-side device receives the third message from the terminal through the target access network device and sends the third message to the SMF.

[0240] In some embodiments, the method 330 further includes:

[0241] The second network-side device identifies the inactive second session and the network-side device corresponding to the second session;

[0242] The second network-side device sends a sixth message to the network-side device corresponding to the second session;

[0243] The second network-side device receives the QoS parameters of the second session from the network-side device corresponding to the second session;

[0244] The sixth message is used to modify the second session.

[0245] For example, the second network-side device determines the second session and the SMF corresponding to the second session, the second network-side device sends a sixth message to the SMF corresponding to the second session, and receives the QoS parameters of the second session from the SMF corresponding to the second session.

[0246] In some embodiments, the first QoS parameter includes a QoS parameter corresponding to the first track; or

[0247] The second QoS parameter includes the QoS parameter corresponding to the second track.

[0248] In some embodiments, the first orbit or the second orbit includes at least one of the following:

[0249] Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

[0250] It should be understood that the wireless communication method 330 includes the relevant process of the second network-side device sending the second QoS parameters. The terminology involved is similar to that of method 310. Therefore, the specific content and the beneficial effects of the corresponding scheme can be referred to the relevant description in method 310. To avoid repetition, it will not be repeated here.

[0251] Figure 6 is a schematic flowchart of a wireless communication method 340 according to an embodiment of this application.

[0252] As shown in Figure 6, the wireless communication method 340 may include at least some of the following:

[0253] S341, the third network-side device receives the fourth Quality of Service (QoS) parameters of the first session;

[0254] In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the fifth QoS parameter.

[0255] For example, the third network-side device may be a UPF or a network element or device with type function.

[0256] For example, the fourth QoS parameter includes the QoS parameter corresponding to the second track. The difference between the second QoS parameter and the fourth QoS parameter is that the fourth QoS parameter is the QoS parameter used by the third network-side device, while the second QoS parameter is the QoS parameter used by the terminal.

[0257] For example, the third network-side device receives the fourth QoS parameter from the SMF.

[0258] In this embodiment of the application, by sending a fourth QoS parameter that is different from the fifth QoS parameter, the QoS parameters of the first session are modified, so that the data transmission performance of the terminal can be guaranteed when the terminal changes from the first satellite in the first orbit to the second satellite in the second orbit.

[0259] In some embodiments, S341 includes:

[0260] The third network-side device receives the seventh message;

[0261] The seventh message is used to modify the first session, and the seventh message includes the fourth QoS parameter.

[0262] For example, the third network-side device receives the seventh message from the SMF.

[0263] In some embodiments, the method 340 further includes:

[0264] The third network-side device stores the fourth QoS parameter.

[0265] For example, after receiving the fourth QoS parameter from the SMF, the third network-side device saves the fourth QoS parameter.

[0266] In some embodiments, the fourth QoS parameter includes the QoS parameter corresponding to the first track; or

[0267] The fifth QoS parameter includes the QoS parameter corresponding to the second track.

[0268] In some embodiments, the first orbit or the second orbit includes at least one of the following:

[0269] Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

[0270] It should be understood that the wireless communication method 340 includes the relevant process of the third network-side device receiving the fourth QoS parameter. The terminology involved is similar to that of method 310. Therefore, the specific content and the beneficial effects of the corresponding scheme can be referred to the relevant description in method 310. To avoid repetition, it will not be repeated here.

[0271] The solution provided in this application will be described below with reference to specific embodiments.

[0272] Example 1:

[0273] In this embodiment, during the process of establishing a PDU session, the network notifies the UE of the tracks that the PDU session can access.

[0274] Figure 7 is a schematic flowchart of a PDU session establishment process 410 provided in an embodiment of this application.

[0275] As shown in Figure 7, the PDU session establishment process 410 may include:

[0276] S411, the UE sends a PDU session establishment request (5GSM capability: first information) to AMF-1 via GEO RAN.

[0277] When a UE initiates a PDU session establishment via a GEO satellite, it carries first information. This first information indicates that the UE supports access to satellites in multiple orbits, or that the UE supports access to multiple orbits, or that the UE supports movement between satellites in multiple orbits, or that the UE supports movement between multiple orbits. For example, the first information indicates that the UE supports access to GEO, MEO, and LEO satellites, or that the UE supports access to GEO, MEO, and LEO, or that the UE supports GEO, MEO, and LEO, or that the UE supports movement between GEO, MEO, and LEO satellites, or that the UE supports movement between GEO, MEO, and LEO satellites.

[0278] This first piece of information can be carried through the 5GSM capability parameters.

[0279] The UE sends a NAS message (e.g., an uplink (UL) NAS transmission message) to AMF-1, which includes the NAS message sent by the UE to the SMF. The NAS message sent by the UE to the SMF is a PDU session establishment request, which is contained within a session management (SM) container.

[0280] When the GEO RAN forwards NAS messages (e.g., uplink (UL) NAS transmission messages) to the AMF-1, it carries the UE's current Radio Access Technology (RAT) type. The RAT type indicates the UE's RAT type. The RAT type can include the type corresponding to the track the UE is accessing. For example, when the UE is accessing a GEO track, the RAT type includes, but is not limited to: NR GEO, E-UTRAN GEO, narrowband (NB) Internet of Things (IoT) GEO, WB E-UTRAN GEO, LTE-M GEO, and IoT NTN GEO. Among these, NR GEO, E-UTRAN GEO, NB IoT GEO, WB E-UTRAN GEO, LTE-M GEO, and IoT NTN GEO are specific RAT types, while GEO corresponds to the track type of the RAT.

[0281] S412, AMF-1 sends Nsmf_PDU session_create SM context request (RAT type (GEO), SM container (PDU session establishment request)) to SMF.

[0282] AMF-1 selects SMF and forwards the SM container to SMF, while carrying the RAT type.

[0283] S413, SMF determines the second information based on the first information and the RAT type.

[0284] SMF determines the tracks that the PDU session supports access to based on at least one of the following: operator policy (e.g., operator-supported tracks), first information, and RAT type.

[0285] For example, the SMF determines the UE's access track as GEO based on the RAT type. If the operator also supports LEO, the SMF determines that the PDU session supports access to both GEO and LEO. If the operator only supports GEO, the SMF determines that the PDU session only supports access to GEO. If the operator also supports LEO and MEO, the SMF determines that the PDU session supports access to GEO, MEO, and LEO.

[0286] It should be noted that:

[0287] In communication standards, satellite orbits can be identified by their RAT types. For example, GEO can correspond to the following RAT types: NR GEO, E-UTRAN GEO, NB IOT GEO, WB E-UTRAN GEO, LTE-M GEO, or IOT NTN GEO. Similarly, MEO can correspond to the following RAT types: NR MEO, E-UTRAN MEO, NB IOT MEO, WB E-UTRAN MEO, LTE-M MEO, or IOT NTN MEO. Furthermore, LEO can correspond to the following RAT types: NR LEO, E-UTRAN LEO, NB IOT LEO, WB E-UTRAN LEO, LTE-M LEO, or IOT NTN LEO.

[0288] In this embodiment, the RAT type corresponding to GEO can be understood or replaced with NR GEO, E-UTRAN GEO, NB IOT GEO, WB E-UTRAN GEO, LTE-M GEO, or IOT NTN GEO. Among these, NR GEO, E-UTRAN GEO, NB IOT GEO, WB E-UTRAN GEO, LTE-M GEO, and IOT NTN GEO are specific RAT types, and GEO is the track corresponding to the aforementioned RAT type. Similarly, the RAT type corresponding to MEO can be understood or replaced with NR MEO, E-UTRAN MEO, NB IOT MEO, WB E-UTRAN MEO, LTE-M MEO, or IOT NTN MEO. Among these, NR MEO, E-UTRAN MEO, NB IOT MEO, WB E-UTRAN MEO, LTE-M MEO, and IOT NTN MEO are specific corresponding RAT types, and MEO is the track corresponding to the aforementioned corresponding RAT type. The RAT type corresponding to LEO can be understood or replaced as NR LEO, E-UTRAN LEO, NB IOT LEO, WB E-UTRAN LEO, LTE-M LEO, or IOT NTN LEO. Among them, NR LEO, E-UTRAN LEO, NB IOT LEO, WB E-UTRAN LEO, LTE-M LEO, and IOT NTN LEO are specific RAT types, and LEO refers to the track corresponding to the above RAT types.

[0289] S414, SMF sends an N4 session establishment request (RAT type) to UPF.

[0290] Based on the UE's PDU session establishment request, the SMF determines the PDU session and the QoS parameters corresponding to the PDU session's QoS flow, and sends an N4 session establishment request to the UPF, carrying the RAT type and GEO QoS parameters. The GEO QoS parameters include: Session-AMBR, GFBR, MFBR, and MPLR.

[0291] S415, UPF sends an N4 session establishment response (UPF channel information) to SMF.

[0292] UPF allocates UPF tunnel info corresponding to the PDU session to the UE and sends it to SMF through the N4 session establishment response.

[0293] S416, SMF sends Namf_Communication_N1N2 message transmission (N2(GEO QoS configuration, GEO session-AMBR), N1 SM NAS container((PDU session establishment acceptance(GEO QoS parameters, second information))) to AMF-1.

[0294] SMF generates information to be sent to the GEO RAN and information to be sent to the UE.

[0295] The information sent to the GEO RAN is contained in the N2 SM information, which includes parameters such as the GEO QoS profile and the GEO session-AMBR. The GEO QoS profile includes parameters such as GFBR, MFBR, and MPLR. Optionally, the information sent to the GEO RAN may also include: Packet Delay Budget (PDB), Packet Error Rate (PER), etc.

[0296] The information sent to the UE is contained in the N1 SM container, which includes the PDU Session Establishment Accept message, which contains parameters such as GEO QoS parameters.

[0297] The PDU session establishment accept message sent by the SMF to the UE also includes the second information, which indicates the track corresponding to the PDU session, or the track available for the PDU session. Optionally, the second information is carried through a Protocol Configuration Option (PCO) parameter. The track corresponding to the PDU session or the track available for the PDU session includes at least one of the following: GEO, MEO, LEO. For example, the track corresponding to the PDU session or the track available for the PDU session includes GEO. Or, the track corresponding to the PDU session or the track available for the PDU session includes GEO and at least one of the following: MEO, LEO.

[0298] The information sent by the SMF to the GEO RAN also includes this second information, which indicates the track corresponding to the PDU session, or the track that the PDU session can use. This second information is used by the GEO RAN to determine whether the PDU session can switch to the target track when switching to another track.

[0299] S417, AMF-1 sends an N2 PDU session request (N2 SM message, NAS message) to the GEO RAN.

[0300] AMF-1 sends information intended for the GEO RAN (i.e., N2 SM messages) and information intended for the UE (i.e., NAS messages) to the GEO RAN via the N2 PDU session request.

[0301] S418, GEO RAN sends RRC (PDU Session Establishment Acceptance (GEO QoS Parameters, Second Information)) to UE.

[0302] The GEO RAN stores the N2 SM message and sends the NAS message (i.e., PDU session establishment acceptance) to the UE, and the UE stores the NAS message.

[0303] S419, UE saves the second information.

[0304] The UE stores this second information locally. If the UE does not receive this second information or the second information is empty, it assumes that the PDU session can only be used on this track. When the UE moves to another track, the UE marks the PDU session as unavailable. When the UE moves back to the same track, it marks the PDU session as available.

[0305] In this embodiment, the UE can obtain the tracks that the PDU session can use. When the UE moves from the current track to other tracks, the UE can determine whether it can continue to use the PDU session in the target track. This can reduce the impact on data transmission performance caused by the mismatch between the PDU session and the target track and ensure the data transmission performance of the UE.

[0306] Example 2:

[0307] In this embodiment, when the UE is in an idle state, if it moves from track-1 to track-2, it modifies the QoS parameters by initiating a QoS parameter modification process.

[0308] Figure 8 is a schematic flowchart of a QoS parameter modification process 420 provided in an embodiment of this application.

[0309] As shown in Figure 8, the QoS parameter modification process 420 includes:

[0310] S421, the UE accesses the network via GEO RAN and establishes a PDU session.

[0311] The UE accesses the network via GEO RAN and establishes a PDU session.

[0312] It should be understood that when the UE establishes a PDU session in GEO, the UE obtains the available tracks for each PDU session.

[0313] S422, UE confirms switch to LEO.

[0314] The UE determines that it needs to switch / change to LEO, for example, when the UE starts a low-latency application.

[0315] S423, the UE triggers the GEO RAN to enter the idle state.

[0316] Optionally, if the UE is in connected state in GEO RAN, the UE enters idle state.

[0317] S424, UE initiates MRU (List of PDU Sessions to be Activated).

[0318] After the UE reselects to an LEO base station, it initiates a registration process or a Mobility Registration Update (MRU) process, carrying the IDs of all PDU sessions on the UE that can be used in LEO in the list of PDU sessions to be activated.

[0319] S425, AMF-2 sends Namf_communication_UE context transmission to AMF-1.

[0320] The AMF-2 corresponding to LEO requests and obtains the UE's context information from the AMF-1 corresponding to GEO.

[0321] S426, AMF-2 sends Nsmf_PDU session_update SM context (RAT type (LEO)) to SMF.

[0322] AMF-2 sends an updateSMContext request to SMF based on the list of PDU sessions to be activated, carrying the RAT type, such as the type corresponding to LEO.

[0323] S427, SMF assigns LEO QoS parameters.

[0324] SMF generates the LEO QoS parameters corresponding to the PDU session based on the RAT type sent by AMF-2.

[0325] Optionally, the SMF can obtain LEO QoS parameters from the PCF.

[0326] Optionally, LEO QoS parameters include at least one of the following: Session-AMBR, GFBR, MFBR, MPLR.

[0327] S428, SMF sends N4 session modification request (QER (LEO QoS parameters)) to UPF.

[0328] SMF sends LEO QoS parameters to UPF via the QER parameter of the N4 session modification request.

[0329] S429, UPF sends an N4 session modification response to SMF.

[0330] UPF allocates UPF tunnel info corresponding to the PDU session to the UE and sends it to SMF through the N4 session establishment response.

[0331] S4210, UPF stores LEO QoS parameters.

[0332] S4211, SMF sends Nsmf_PDU session_update SM context response (N2 SM information (LEO QoS parameters)) and N1 SM container (PDU session modification command (LEO QoS parameters)) to AMF-2.

[0333] SMF sends N2 SM information and N1 SM container to AMF-2.

[0334] The N2 SM information includes the QoS configuration and session-AMBR corresponding to the LEO sent to the RAN. Optionally, the N2 SM information may also include: Packet Delay Budget (PDB), Packet Error Rate (PER), etc.

[0335] Include LEO QoS parameters in the N1 SM container. For example, include a PDU session modification command in the N1 SM container, and include LEO QoS parameters in the PDU session modification command.

[0336] S4212, AMF-2 sends an N2 request (N2 SM information (QoS configuration (LEO QoS parameters)) to the LEO RAN.

[0337] AMF-2 stores the N1 SM container and sends the N2 SM information to the LEO RAN via the N2 request.

[0338] S4213, LEO RAN sends RRC reconfiguration to UE.

[0339] The RRC reconfiguration is used by the base station to reconfigure the UE (e.g., resource reconfiguration) to match the LEO QoS parameters.

[0340] S4214, LEO RAN sends N2 request ACK to AMF-2.

[0341] S4215, AMF-2 sends MRU acceptance (status information) to UE.

[0342] AMF-2 sends a registration accept message or MRU accept message to the UE via the LEO RAN, carrying the status information of each PDU session. The PDU session status information indicates the status of the PDU session. The PDU session status packet indicates whether it is active or inactive.

[0343] S4216, the UE sends an MRU completion message to AMF-2.

[0344] The UE replies with a registration complete message or an MRU complete message.

[0345] S4217, AMF-2 sends a downlink NAS message (N1 SM container (PDU session modification command (LEO QoS parameters)) to the UE.

[0346] After receiving a registration complete or MRU complete message, AMF-2 sends the N1 SM container stored in S4212 to the UE.

[0347] S4218, UE saves LEO QoS parameters.

[0348] The UE stores LEO QoS parameters and transmits data based on LEO QoS parameters.

[0349] In this embodiment, when the UE moves to another track, by modifying the QoS parameters of the PDU session, the impact on data transmission performance caused by the mismatch between the PDU session and the target track can be reduced, thus ensuring the data transmission performance of the UE.

[0350] Example 3:

[0351] In this embodiment, when the UE is in connected state, if it moves from track-1 to track-2, it modifies the QoS parameters by initiating a QoS parameter modification process.

[0352] Figure 9 is a schematic flowchart of a QoS parameter modification process 430 provided in an embodiment of this application.

[0353] As shown in Figure 9, the QoS parameter modification process 430 includes:

[0354] S431, Measurement and Switching Decisions.

[0355] The UE measures the target base station based on the network configuration and decides whether to switch to LEO RAN.

[0356] It should be understood that when the UE establishes a PDU session in GEO, the SMF simultaneously allocates GEO QoS parameters.

[0357] S432, GEO RAN sends a handover request to AMF-1.

[0358] The GEO RAN sends a handover request to AMF-1 (e.g., the source AMF), carrying information about the LEO RAN.

[0359] S433, AMF-1 selects AMF-2.

[0360] If an AMF needs to be changed, AMF-1 will select AMF-2 (e.g., the target AMF).

[0361] S434, AMF-1 sends a Namf_Communication_Create UE Context Request to AMF-2.

[0362] AMF-1 sends a createUEContext request to AMF-2 via Namf_Communication_CreateUEContextRequest.

[0363] S435, AMF-2 sends an Nsmf_PDU session_update SM context request to SMF-1.

[0364] AMF-2 sends an updateSMContext request to SMF-1 via Nsmf_PDU session_updateSMContext request. This updateSMContext request carries the RAT type, such as the type corresponding to LEO.

[0365] S436, SMF-1 assigns LEO QoS parameters.

[0366] SMF-1 generates the LEO QoS parameters for the PDU session based on the RAT type (e.g., the type corresponding to LEO).

[0367] Optionally, SMF-1 can obtain LEO QoS parameters from PCF.

[0368] Optionally, LEO QoS parameters include at least one of the following: Session-AMBR, GFBR, MFBR, MPLR.

[0369] S437, SMF-1 sends an N4 session modification request (QER (LEO QoS parameters)) to UPF.

[0370] SMF-1 sends LEO QoS parameters to UPF via the QER parameter of the N4 session modification request.

[0371] S438, UPF sends an N4 session modification response to SMF-1.

[0372] UPF allocates UPF tunnel info corresponding to the PDU session to the UE and sends it to SMF-1 through the N4 session establishment response.

[0373] S439, UPF stores LEO QoS parameters.

[0374] S4310, SMF-1 sends Nsmf_PDU session_update SM context response (N2 SM information (LEO QoS parameters)) and N1 SM container (PDU session modification command (LEO QoS parameters)) to AMF-2.

[0375] SMF-1 sends N2 SM information and N1 SM container to AMF-2.

[0376] The N2 SM information includes the QoS configuration and session-AMBR corresponding to the LEO sent to the RAN. Optionally, the N2 SM information may also include: Packet Delay Budget (PDB), Packet Error Rate (PER), etc.

[0377] Include LEO QoS parameters in the N1 SM container. For example, include a PDU session modification command in the N1 SM container, and include LEO QoS parameters in the PDU session modification command.

[0378] S4311, AMF-2 performs PDU handover response management.

[0379] AMF-2 retrieves the LEO QoS parameters for all PDU sessions. For example, AMF-2 retrieves the LEO QoS parameters for all active PDU sessions from the SMF corresponding to each active PDU session.

[0380] S4312, AMF-2 sends a handover request (LEO QoS parameters) to the LEO RAN.

[0381] AMF-2 stores the N1 SM container and sends N2 SM information to the LEO RAN via a handover request.

[0382] S4313, LEO RAN sends a handover request confirmation to AMF-2.

[0383] The LEO RAN allocates radio resources to the UE and sends a handover request confirmation to the AMF-2.

[0384] S4314, AMF-2 sends a Namf_Communication_Create UE Context response to AMF-1.

[0385] AMF-2 sends the radio resources allocated by the LEO RAN to the UE to AMF-1 through Namf_Communication_Create UE Context Response.

[0386] S4315, AMF-1 sends a handover command to GEO RAN.

[0387] S4316, GEO RAN sends a handover command to UE.

[0388] S4317, the UE sends a handover confirmation to the LEO RAN.

[0389] The UE accesses the LEO RAN based on the radio resource information allocated by the LEO RAN and sends a handover confirmation to the LEO RAN.

[0390] S4318, LEO RAN sends a handover notification to AMF-2.

[0391] The LEO RAN sends a handover notification to AMF-2 to inform AMF-2 that the handover is complete.

[0392] S4319, AMF-2 sends an Nsmf_PDU session_update SM context request (handover completion indication) to SMF-1.

[0393] AMF-2 notifies SMF-1 that the handover is complete via the Nsmf_PDU session_updateSM context request.

[0394] S4320, the UE initiates the registration process.

[0395] For example, the UE initiates an MRU procedure.

[0396] S4321, AMF-2 sends downlink NAS transmission (N2 SM container (PDU session modification command (LEO QoS parameters))) to UE.

[0397] After AMF-2 confirms that the handover is complete, it sends a PDU session modification command to the UE, carrying the LEO QoS parameters saved in S4312.

[0398] S4322, AMF-2 identifies inactive PDU sessions.

[0399] S4323, AMF-2 sends an Nsmf_PDU session_update SM context request to SMF-2.

[0400] S4324, SMF-2 sends Namf_communication_N1N2 message transmission (N2 SM container (PDU session modification command (LEO QoS parameters))) to AMF-2.

[0401] S4325, AMF-2 sends downlink NAS transmission (N2 SM container (PDU session modification command (LEO QoS parameters))) to UE.

[0402] In S4322 to S4325, AMF-2 identifies inactive PDU sessions and their corresponding SMF-2, and sends an update message to SMF-2. SMF-2 allocates LEO QoS parameters and sends them to the UE.

[0403] It should be noted that:

[0404] In 5G, when a UE establishes multiple PDU sessions, they do not need to be activated simultaneously; only the necessary PDU sessions need to be activated. For example, if a UE establishes three PDU sessions, when the UE transitions from idle to connected mode, only PDU session-1 (which can be used for data transmission) can be activated, while the other two PDU sessions remain inactive (unavailable for data transmission). When the UE switches between connected and inactive modes, the network will only process the active PDU sessions. In this embodiment, QoS parameters for inactive PDU sessions need to be reallocated to prevent errors when the user uses the PDU session on the target track.

[0405] It is worth noting that:

[0406] S4322 to S4325 are the procedures for AMF-2 to trigger the modification of an inactive PDU session. Alternatives include, but are not limited to, any of the following:

[0407] Alternative Option 1:

[0408] After AMF-2 confirms the handover is complete, the UE initiates a PDU session modification procedure for each inactive PDU session that is available in LEO, triggering SMF to update QoS parameters.

[0409] Alternative Option 2:

[0410] After AMF-2 confirms the handover is complete, the UE activates all PDU sessions available in LEO through a service request process. This allows SMF to modify QoS parameters via PDU session modification commands based on changes in RAT type.

[0411] In this embodiment, when the UE moves to another track, by modifying the QoS parameters of the PDU session, the impact on data transmission performance caused by the mismatch between the PDU session and the target track can be reduced, thus ensuring the data transmission performance of the UE.

[0412] It should be noted that Examples 1-3 are described using 5G as an example, but are not limited to it. For example, the PDU session establishment process and QoS parameter modification procedure can also be applied to 4G networks. If applied to 4G, the 5G PDU session can be replaced with a 4G Public Data Network (PDN) connection. The QoS flow can be replaced with an Evolved Packet System (EPS) bearer, and the AMF can be replaced with a Mobility Management Entity (MME).

[0413] The wireless communication method provided in this application can be executed by a wireless communication device. This application uses an example of a wireless communication device executing a wireless communication method to illustrate the wireless communication device provided in this application.

[0414] This application provides a wireless communication device. As an example, the wireless communication device may be a communication equipment or a component within a communication equipment, such as a chip. The communication equipment may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0415] The wireless communication device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, etc., such as central processing units (CPUs), microprocessors, digital signal processors (DSPs), artificial intelligence (AI) processors, graphics processing units (GPUs), application-specific integrated circuits (ASICs), network processors (NPs), field-programmable gate arrays (FPGAs), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceivers, pins, circuits, buses, radio frequency units, etc.

[0416] Specifically, referring to Figure 10, when the wireless communication device is a terminal or a component within a terminal, and the terminal accesses the network via a first satellite in a first orbit, the Quality of Service (QoS) parameter of the terminal's first session is a first QoS parameter; the device 440 includes:

[0417] The first receiving module 441 is used to receive the second QoS parameters of the first session when the terminal changes from the first satellite to the second satellite in the second orbit.

[0418] In some embodiments, the first receiving module 441 is specifically used for:

[0419] Receive the first message;

[0420] The first message is used to modify the first session, and the first message includes the second QoS parameters.

[0421] In some embodiments, the device 440 further includes at least one of the following:

[0422] The first sending module is used to send the identifier of at least one session;

[0423] The second receiving module is used to receive status information of at least one session;

[0424] Wherein, each of the at least one sessions corresponds to the second track, or each of the at least one sessions can be used on the second track;

[0425] The status information is used to indicate the status of each session in at least one session.

[0426] In some embodiments, the first sending module is specifically used for:

[0427] Send a second message, the second message including an identifier of the at least one session, wherein the second message includes one of the following:

[0428] Mobility registration update message;

[0429] Mobility location update message;

[0430] Service request message.

[0431] In some embodiments, the device 440 further includes:

[0432] The second sending module is used to send the third message;

[0433] The third message is used to modify the session, and the third message includes information about the first session, or the third message includes information about an inactive session of the terminal.

[0434] In some embodiments, the device 440 further includes at least one of the following:

[0435] The third sending module is used to send the first information;

[0436] The third receiving module is used to receive the second information;

[0437] The first processing module is used to save the second information;

[0438] The terminal determines whether to use the first session or not to use the first session based on the second information.

[0439] Wherein, the first information is used to indicate that the terminal supports access to satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports access to the first orbit and the second orbit, or the first information is used to indicate that the terminal supports the first orbit and the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and the second orbit, or the first information is used to indicate that the terminal supports access to satellites in multiple orbits, or the first information is used to indicate that the terminal supports access to multiple orbits, or the first information is used to indicate that the terminal supports multiple orbits, or the first information is used to indicate that the terminal supports movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits;

[0440] The second information is used to indicate the track corresponding to the first session, or the second information is used to indicate the track that the first session can use.

[0441] In some embodiments, the third sending module is specifically used for:

[0442] Send a fourth message, the fourth message including the first information, wherein the fourth message is used to establish a session; or

[0443] The third receiving module is specifically used for:

[0444] A fifth message is received, the fifth message including the second information, wherein the fifth message is used to confirm acceptance of the session establishment.

[0445] In some embodiments, the first QoS parameter includes a QoS parameter corresponding to the first track; or

[0446] The second QoS parameter includes the QoS parameter corresponding to the second track.

[0447] In some embodiments, the first orbit or the second orbit includes at least one of the following:

[0448] Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

[0449] Referring to Figure 11, when the wireless communication device is a first network-side device or a component of the first network-side device, the wireless communication device 450 includes:

[0450] The first sending module 451 is used to send the second Quality of Service (QoS) parameters of the first session;

[0451] In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

[0452] In some embodiments, the first sending module 451 is specifically used for:

[0453] Send the first message;

[0454] The first message is used to modify the first session, and the first message includes the second QoS parameters.

[0455] In some embodiments, the first sending module 451 is further configured to perform at least one of the following:

[0456] Send the third QoS parameter of the first session, the third QoS parameter corresponding to the second QoS parameter, the third QoS parameter being the QoS parameter sent to the access network device corresponding to the second track;

[0457] Send the fourth QoS parameter of the first session to the third network-side device. The fourth QoS parameter corresponds to the second QoS parameter.

[0458] In some embodiments, the device 450 further includes:

[0459] The first receiving module is used to receive the third message;

[0460] The third message is used to modify the session, and the third message includes information about the first session, or the third message includes information about an inactive session of the terminal.

[0461] In some embodiments, the device 450 further includes at least one of the following:

[0462] The second receiving module is used to receive the first information;

[0463] The third receiving module is used to receive Radio Access Technology (RAT) type data from the second satellite in the second orbit;

[0464] The processing module is configured to determine the second information based on at least one of the following: the first information, the RAT type;

[0465] The second sending module is used to send the second information;

[0466] Wherein, the first information is used to indicate that the terminal supports access to satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports access to the first orbit and the second orbit, or the first information is used to indicate that the terminal supports the first orbit and the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and the second orbit, or the first information is used to indicate that the terminal supports access to satellites in multiple orbits, or the first information is used to indicate that the terminal supports access to multiple orbits, or the first information is used to indicate that the terminal supports multiple orbits, or the first information is used to indicate that the terminal supports movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits;

[0467] The second information is used to indicate the track corresponding to the first session, or the second information is used to indicate the track that the first session can use.

[0468] In some embodiments, the second receiving module is specifically used for:

[0469] Receive a fourth message, the fourth message including the first information, wherein the fourth message is used to establish a session; or

[0470] The second sending module is specifically used for:

[0471] Send a fifth message, which includes the second information, wherein the fifth message is used to confirm acceptance of the session establishment.

[0472] In some embodiments, the first QoS parameter includes a QoS parameter corresponding to the first track; or

[0473] The second QoS parameter includes the QoS parameter corresponding to the second track.

[0474] In some embodiments, the first orbit or the second orbit includes at least one of the following:

[0475] Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

[0476] Referring to Figure 12, when the wireless communication device is a second network-side device or a component of a second network-side device, the wireless communication device 460 includes:

[0477] The first sending module 461 is used to send the second quality of service (QoS) parameters of the first session to the terminal through the access network device corresponding to the second track;

[0478] Wherein, when the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

[0479] In some embodiments, the device 460 further includes:

[0480] The first receiving module is configured to receive a second message from the terminal through the access network device;

[0481] The second receiving module is used to receive a first message from the first network-side device through the access network device;

[0482] The second sending module is used to send a response message corresponding to the second message to the terminal through the access network device;

[0483] Specifically, the first sending module 461 is used for:

[0484] The first message is sent to the terminal via the access network device:

[0485] The second message includes one of the following: mobility registration update message, mobility location update message, and service request message;

[0486] The first message is used to modify the first session, and the first message includes the second QoS parameters.

[0487] In some embodiments, the second message includes an identifier of at least one session;

[0488] Wherein, each of the at least one sessions corresponds to the second track, or each of the at least one sessions can be used on the second track;

[0489] The second sending module is also used for:

[0490] Send status information for at least one session;

[0491] The status information is used to indicate the status of each session in at least one session.

[0492] In some embodiments, the device 460 further includes:

[0493] The third receiving module is used to receive the third message;

[0494] The third message is used to modify the session, and the third message includes information about the first session, or the third message includes information about an inactive session of the terminal.

[0495] In some embodiments, the device 460 further includes:

[0496] The processing module is used to determine the inactive second session and the network-side device corresponding to the second session;

[0497] The third sending module is used to send a sixth message to the network-side device corresponding to the second session;

[0498] The fourth receiving module is used to receive the QoS parameters of the second session from the network-side device corresponding to the second session;

[0499] The sixth message is used to modify the second session.

[0500] In some embodiments, the first QoS parameter includes a QoS parameter corresponding to the first track; or

[0501] The second QoS parameter includes the QoS parameter corresponding to the second track.

[0502] In some embodiments, the first orbit or the second orbit includes at least one of the following:

[0503] Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

[0504] Referring to Figure 13, when the wireless communication device is a third network-side device or a component within a third network-side device, the wireless communication device 470 includes:

[0505] The receiving module 471 is used to receive the fourth Quality of Service (QoS) parameters of the first session;

[0506] In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the fifth QoS parameter.

[0507] In some embodiments, the receiving module 471 is specifically used for:

[0508] Receive the seventh message;

[0509] The seventh message is used to modify the first session, and the seventh message includes the fourth QoS parameter.

[0510] In some embodiments, the device 470 further includes:

[0511] The processing module is used to save the fourth QoS parameter.

[0512] In some embodiments, the fourth QoS parameter includes the QoS parameter corresponding to the first track; or

[0513] The fifth QoS parameter includes the QoS parameter corresponding to the second track.

[0514] In some embodiments, the first orbit or the second orbit includes at least one of the following:

[0515] Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

[0516] The apparatus provided in this application embodiment can implement the various processes implemented in the method embodiments of Figures 3 to 9 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0517] As shown in Figure 14, this application embodiment also provides a communication device 500, including a processor 501 and a memory 502. The memory 502 stores a program or instructions that can run on the processor 501. For example, when the communication device 500 is a terminal, the program or instructions executed by the processor 501 implement the various steps of the above-described wireless communication method embodiment and achieve the same technical effect. When the communication device 500 is a first network-side device, a second network-side device, or a third network-side device, the program or instructions executed by the processor 501 implement the various steps of the above-described wireless communication method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0518] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the method embodiments shown in Figures 3 and 7 to 9. This terminal embodiment corresponds to the above-described terminal-side method embodiments, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal may be the wireless communication device shown in Figure 10. Specifically, Figure 15 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0519] The terminal 600 includes, but is not limited to, at least some of the following components: radio frequency unit 601, network module 602, audio output unit 603, input unit 604, sensor 605, display unit 606, user input unit 607, interface unit 608, memory 609, and processor 610.

[0520] Those skilled in the art will understand that terminal 600 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to processor 610 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 15 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0521] It should be understood that, in this embodiment, the input unit 604 may include a graphics processor 6041 and a microphone 6042. The graphics processor 6041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 607 includes at least one of a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts: a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0522] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 601 can transmit it to the processor 610 for processing; in addition, the radio frequency unit 601 can send uplink data to the network-side device. Typically, the radio frequency unit 601 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0523] The memory 609 can be used to store software programs or instructions, as well as various data. The memory 609 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 609 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 609 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0524] Processor 610 may include one or more processing units; optionally, processor 610 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 610.

[0525] Wherein, when the terminal 600 accesses the network through the first satellite in the first orbit, the QoS parameter of the first session of the terminal 600 is the first QoS parameter; the radio frequency unit 601 is used to receive the second QoS parameter of the first session when the terminal 600 changes from the first satellite to the second satellite in the second orbit.

[0526] In this embodiment of the application, when the terminal changes from the first satellite in the first orbit to the second satellite in the second orbit, the terminal can modify the QoS parameters of the first session by receiving a second QoS parameter that is different from the first QoS parameter, thereby ensuring the data transmission performance of the terminal.

[0527] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant descriptions of method embodiments 310, 410 to 430, and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0528] This application also provides a first network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG4. This network-side device embodiment corresponds to the method embodiment of the first network-side device described above. All implementation processes and methods of the above method embodiments can be applied to this first network-side device embodiment and can achieve the same technical effect.

[0529] This application also provides a second network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG5. This network-side device embodiment corresponds to the method embodiment of the second network-side device described above. All implementation processes and methods of the above method embodiments can be applied to this second network-side device embodiment and can achieve the same technical effect.

[0530] This application also provides a third network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG6. This network-side device embodiment corresponds to the above-described method embodiment of the third network-side device. All implementation processes and methods of the above-described method embodiments can be applied to this third network-side device embodiment and can achieve the same technical effect.

[0531] Specifically, this application embodiment also provides a network-side device, which can be the first network-side device, the second network-side device, or the third network-side device described above. As shown in FIG16, the network-side device 700 includes: a processor 701, a network interface 702, and a memory 703. The network-side device can be the wireless communication device shown in FIG11. The network interface 702 is, for example, a Common Public Radio Interface (CPRI).

[0532] For example, when the network-side device 700 is the first network-side device, the network interface 702 is used to send the second quality of service (QoS) parameters of the first session; wherein, when the terminal accesses the network through the first satellite in the first orbit, the QoS parameters of the first session are the first QoS parameters.

[0533] In this embodiment of the application, by sending a second QoS parameter different from the first QoS parameter to modify the QoS parameter of the first session, the data transmission performance of the terminal can be guaranteed when the terminal changes from the first satellite in the first orbit to the second satellite in the second orbit.

[0534] For example, when the network-side device 700 is a second network-side device, the network interface 702 is used to send the second quality of service (QoS) parameters of the first session to the terminal through the access network device corresponding to the second orbit; wherein, when the terminal accesses the network through the first satellite of the first orbit, the QoS parameters of the first session are the first QoS parameters.

[0535] In this embodiment of the application, by sending a second QoS parameter different from the first QoS parameter to modify the QoS parameter of the first session, the data transmission performance of the terminal can be guaranteed when the terminal changes from the first satellite in the first orbit to the second satellite in the second orbit.

[0536] For example, when the network-side device 700 is a third network-side device, the network interface 702 is used to receive the fourth Quality of Service (QoS) parameter of the first session; wherein, when the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the fifth QoS parameter.

[0537] In this embodiment of the application, by sending a fourth QoS parameter that is different from the fifth QoS parameter, the QoS parameters of the first session are modified, so that the data transmission performance of the terminal can be guaranteed when the terminal changes from the first satellite in the first orbit to the second satellite in the second orbit.

[0538] In addition, the network-side device 700 of this application embodiment also includes: a program or instructions stored in a memory 703 and executable on a processor 701. The processor 701 calls the program or instructions in the memory 703 to execute the methods executed by the modules shown in FIG11, FIG12 or FIG13 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0539] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described wireless communication method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0540] The processor mentioned above is either the processor in the terminal described in the above embodiments or the processor in the network-side device. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0541] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described wireless communication method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0542] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0543] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described wireless communication method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0544] This application also provides a wireless communication system, including: a terminal, a first network-side device, a second network-side device, and a third network-side device. The terminal can be used to execute the steps of the wireless communication method executed by the terminal as described above. The first network-side device can be used to execute the steps of the wireless communication method executed by the first network-side device as described above. The second network-side device can be used to execute the steps of the wireless communication method executed by the second network-side device as described above. The third network-side device can be used to execute the steps of the wireless communication method executed by the third network-side device as described above.

[0545] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0546] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.), and the computer software product includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0547] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A wireless communication method, the method being applied to a terminal, wherein when the terminal accesses a network via a first satellite in a first orbit, the Quality of Service (QoS) parameter of the terminal's first session is a first QoS parameter; The method includes: In the event that the terminal changes from the first satellite to a second satellite in a second orbit, the terminal receives the second QoS parameters of the first session.

2. The method according to claim 1, wherein, The terminal receives the second QoS parameters of the first session, including: The terminal receives the first message; The first message is used to modify the first session, and the first message includes the second QoS parameters.

3. The method according to claim 1 or 2, wherein, The method further includes at least one of the following: The terminal sends an identifier for at least one session; The terminal receives status information for at least one session; Wherein, each of the at least one sessions corresponds to the second track, or each of the at least one sessions can be used on the second track; The status information is used to indicate the status of each session in at least one session.

4. The method according to claim 3, wherein, The terminal sends an identifier for at least one session, including: The terminal sends a second message, the second message including an identifier of the at least one session, wherein the second message includes one of the following: Mobility registration update message; Mobility location update message; Service request message.

5. The method according to any one of claims 1 to 4, wherein, The method further includes: The terminal sends a third message; The third message is used to modify the session, and the third message includes information about the first session, or the third message includes information about an inactive session of the terminal.

6. The method according to any one of claims 1 to 5, wherein, The method further includes at least one of the following: The terminal sends the first information; The terminal receives the second information; The terminal stores the second information; The terminal determines whether to use the first session or not to use the first session based on the second information. Wherein, the first information is used to indicate that the terminal supports access to satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports access to the first orbit and the second orbit, or the first information is used to indicate that the terminal supports the first orbit and the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and the second orbit, or the first information is used to indicate that the terminal supports access to satellites in multiple orbits, or the first information is used to indicate that the terminal supports access to multiple orbits, or the first information is used to indicate that the terminal supports multiple orbits, or the first information is used to indicate that the terminal supports movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits; The second information is used to indicate the track corresponding to the first session, or the second information is used to indicate the track that the first session can use.

7. The method according to claim 6, wherein, The terminal sends first information, including: The terminal sends a fourth message, the fourth message including the first information, wherein the fourth message is used to establish a session; or The terminal receives the second information, including: The terminal receives a fifth message, which includes the second information, wherein the fifth message is used to confirm acceptance of the session establishment.

8. The method according to any one of claims 1 to 7, wherein, The first QoS parameter includes the QoS parameter corresponding to the first track; or The second QoS parameter includes the QoS parameter corresponding to the second track.

9. The method according to any one of claims 1 to 8, wherein, The first orbit or the second orbit includes at least one of the following: Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

10. A wireless communication method, comprising: The first network-side device sends the second Quality of Service (QoS) parameters for the first session; In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

11. The method according to claim 10, wherein, The first network-side device sends the second Quality of Service (QoS) parameters for the first session, including: The first network-side device sends a first message; The first message is used to modify the first session, and the first message includes the second QoS parameters.

12. The method according to claim 10 or 11, wherein, The method further includes at least one of the following: The first network-side device sends the third QoS parameter of the first session. The third QoS parameter corresponds to the second QoS parameter and is a QoS parameter sent to the access network device corresponding to the second track. The first network-side device sends a fourth QoS parameter of the first session to the third network-side device, the fourth QoS parameter corresponding to the second QoS parameter.

13. The method according to any one of claims 10 to 12, wherein, The method further includes: The first network-side device receives the third message; The third message is used to modify the session, and the third message includes information about the first session, or the third message includes information about an inactive session of the terminal.

14. The method according to any one of claims 10 to 13, wherein, The method further includes at least one of the following: The first network-side device receives the first information; The first network-side device receives the Radio Access Technology (RAT) type from the second satellite in the second orbit; The first network-side device determines the second information based on at least one of the following: the first information, the RAT type; The first network-side device sends the second information; Wherein, the first information is used to indicate that the terminal supports access to satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports access to the first orbit and the second orbit, or the first information is used to indicate that the terminal supports the first orbit and the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and the second orbit, or the first information is used to indicate that the terminal supports access to satellites in multiple orbits, or the first information is used to indicate that the terminal supports access to multiple orbits, or the first information is used to indicate that the terminal supports multiple orbits, or the first information is used to indicate that the terminal supports movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits; The second information is used to indicate the track corresponding to the first session, or the second information is used to indicate the track that the first session can use.

15. The method according to claim 14, wherein, The first network-side device receives first information, including: The first network-side device receives a fourth message, the fourth message including the first information, wherein the fourth message is used to establish a session; or The first network-side device sends the second information, including: The first network-side device sends a fifth message, which includes the second information, wherein the fifth message is used to confirm acceptance of the session establishment.

16. The method according to any one of claims 10 to 15, wherein, The first QoS parameter includes the QoS parameter corresponding to the first track; or The second QoS parameter includes the QoS parameter corresponding to the second track.

17. The method according to claim 16, wherein, The first orbit or the second orbit includes at least one of the following: Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

18. A wireless communication method, comprising: The second network-side device sends the second Quality of Service (QoS) parameters of the first session to the terminal through the access network device corresponding to the second track. Wherein, when the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

19. The method according to claim 18, wherein, The method further includes: The second network-side device receives a second message from the terminal through the access network device; The second network-side device receives a first message from the first network-side device through the access network device; The second network-side device sends a response message corresponding to the second message to the terminal through the access network device; The second network-side device sends the second Quality of Service (QoS) parameters of the first session to the terminal through the access network device corresponding to the second track, including: The second network-side device sends the first message to the terminal through the access network device: The second message includes one of the following: mobility registration update message, mobility location update message, and service request message; The first message is used to modify the first session, and the first message includes the second QoS parameters.

20. The method according to claim 19, wherein, The second message includes an identifier for at least one session; Wherein, each of the at least one sessions corresponds to the second track, or each of the at least one sessions can be used on the second track; The method further includes: The second network-side device sends status information for at least one session; The status information is used to indicate the status of each session in at least one session.

21. The method according to any one of claims 18 to 20, wherein, The method further includes: The second network-side device receives the third message; The third message is used to modify the session, and the third message includes information about the first session, or the third message includes information about an inactive session of the terminal.

22. The method according to any one of claims 18 to 21, wherein, The method further includes: The second network-side device identifies the inactive second session and the network-side device corresponding to the second session; The second network-side device sends a sixth message to the network-side device corresponding to the second session; The second network-side device receives the QoS parameters of the second session from the network-side device corresponding to the second session; The sixth message is used to modify the second session.

23. The method according to any one of claims 18 to 22, wherein, The first QoS parameter includes the QoS parameter corresponding to the first track; or The second QoS parameter includes the QoS parameter corresponding to the second track.

24. The method according to any one of claims 18 to 23, wherein, The first orbit or the second orbit includes at least one of the following: Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

25. A wireless communication method, comprising: The third network-side device receives the fourth Quality of Service (QoS) parameters of the first session; In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the fifth QoS parameter.

26. The method of claim 25, wherein, The third network-side device receives the fourth Quality of Service (QoS) parameters of the first session, including: The third network-side device receives the seventh message; The seventh message is used to modify the first session, and the seventh message includes the fourth QoS parameter.

27. The method according to claim 25 or 26, wherein, The method further includes: The third network-side device stores the fourth QoS parameter.

28. The method according to any one of claims 25 to 27, wherein, The fourth QoS parameter includes the QoS parameter corresponding to the first track; or The fifth QoS parameter includes the QoS parameter corresponding to the second track.

29. The method according to claim 28, wherein, The first orbit or the second orbit includes at least one of the following: Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

30. A wireless communication device, the device being applied to a terminal, wherein when the terminal accesses a network via a first satellite in a first orbit, the Quality of Service (QoS) parameter of the terminal's first session is a first QoS parameter; The device includes: The first receiving module is configured to receive the second QoS parameters of the first session when the terminal changes from the first satellite to a second satellite in a second orbit.

31. The apparatus according to claim 30, wherein, The device further includes at least one of the following: The first sending module is used to send the identifier of at least one session; The second receiving module is used to receive status information of at least one session; Wherein, each of the at least one sessions corresponds to the second track, or each of the at least one sessions can be used on the second track; The status information is used to indicate the status of each session in at least one session.

32. The apparatus according to claim 30 or 31, wherein, The device further includes: The second sending module is used to send the third message; The third message is used to modify the session, and the third message includes information about the first session, or the third message includes information about an inactive session of the terminal.

33. The apparatus according to any one of claims 30 to 32, wherein, The device further includes at least one of the following: The third sending module is used to send the first information; The third receiving module is used to receive the second information; The first processing module is used to save the second information; The second processing module is configured to determine whether to use the first session or not to use the first session based on the second information. Wherein, the first information is used to indicate that the terminal supports access to satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports access to the first orbit and the second orbit, or the first information is used to indicate that the terminal supports the first orbit and the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and the second orbit, or the first information is used to indicate that the terminal supports access to satellites in multiple orbits, or the first information is used to indicate that the terminal supports access to multiple orbits, or the first information is used to indicate that the terminal supports multiple orbits, or the first information is used to indicate that the terminal supports movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits; The second information is used to indicate the track corresponding to the first session, or the second information is used to indicate the track that the first session can use.

34. A wireless communication device, comprising: The first sending module is used to send the second Quality of Service (QoS) parameters for the first session. In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

35. The apparatus according to claim 34, wherein, The device further includes: The first receiving module is used to receive the third message; The third message is used to modify the session, and the third message includes information about the first session, or the third message includes information about an inactive session of the terminal.

36. The apparatus according to claim 34 or 35, wherein, The device further includes at least one of the following: The second receiving module is used to receive the first information; The third receiving module is used to receive Radio Access Technology (RAT) type data from the second satellite in the second orbit; The processing module is configured to determine the second information based on at least one of the following: the first information, the RAT type; The second sending module is used to send the second information; Wherein, the first information is used to indicate that the terminal supports access to satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports access to the first orbit and the second orbit, or the first information is used to indicate that the terminal supports the first orbit and the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and satellites in the second orbit, or the first information is used to indicate that the terminal supports movement between satellites in the first orbit and the second orbit, or the first information is used to indicate that the terminal supports access to satellites in multiple orbits, or the first information is used to indicate that the terminal supports access to multiple orbits, or the first information is used to indicate that the terminal supports multiple orbits, or the first information is used to indicate that the terminal supports movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits; The second information is used to indicate the track corresponding to the first session, or the second information is used to indicate the track that the first session can use.

37. A wireless communication device, comprising: The first sending module is used to send the second Quality of Service (QoS) parameters of the first session to the terminal through the access network device corresponding to the second track; Wherein, when the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the first QoS parameter.

38. The apparatus according to claim 37, wherein, The device further includes: The first receiving module is configured to receive a second message from the terminal through the access network device; The second receiving module is used to receive a first message from the first network-side device through the access network device; The second sending module is used to send a response message corresponding to the second message to the terminal through the access network device; Specifically, the first sending module is used for: The first message is sent to the terminal via the access network device: The second message includes one of the following: mobility registration update message, mobility location update message, and service request message; The first message is used to modify the first session, and the first message includes the second QoS parameters.

39. The apparatus according to claim 37 or 38, wherein, The device further includes: The third receiving module is used to receive the third message; The third message is used to modify the session, and the third message includes information about the first session, or the third message includes information about an inactive session of the terminal.

40. The apparatus according to any one of claims 37 to 39, wherein, The device further includes: The processing module is used to determine the inactive second session and the network-side device corresponding to the second session; The third sending module is used to send a sixth message to the network-side device corresponding to the second session; The fourth receiving module is used to receive the QoS parameters of the second session from the network-side device corresponding to the second session; The sixth message is used to modify the second session.

41. A wireless communication device, comprising: The receiving module is used to receive the fourth Quality of Service (QoS) parameters of the first session; In the case where the terminal accesses the network through the first satellite in the first orbit, the QoS parameter of the first session is the fifth QoS parameter.

42. The apparatus according to claim 41, wherein, The device further includes: The processing module is used to save the fourth QoS parameter.

43. A terminal comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the wireless communication method as claimed in any one of claims 1 to 9.

44. A network-side device, comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the wireless communication method as claimed in any one of claims 10 to 17, or implementing the steps of the wireless communication method as claimed in any one of claims 18 to 24, or implementing the steps of the wireless communication method as claimed in any one of claims 25 to 29.

45. A readable storage medium storing a program or instructions that, when executed by a processor, implement the steps of the wireless communication method as claimed in any one of claims 1 to 9, or the steps of the wireless communication method as claimed in any one of claims 10 to 17, or the steps of the wireless communication method as claimed in any one of claims 18 to 24, or the steps of the wireless communication method as claimed in any one of claims 25 to 29.

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