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 the embodiments of the present application comprises: when a terminal accesses a network by means of a first satellite in a first orbit, the terminal receives a first quality of service (QoS) parameter of a first session and 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. 202510064906.8, 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] When a user equipment (UE) accesses a satellite, it will receive the Quality of Service (QoS) parameters for the session.

[0005] However, when the UE's network environment changes, such as when the satellite the UE accesses changes or the transmission rate provided by the accessed satellite changes, the QoS parameters of the UE's established sessions may not match the changed network environment, thereby reducing the UE's data transmission performance. Summary of the Invention

[0006] This application provides a wireless communication method, a terminal, and a network-side device that can guarantee the data transmission performance of the terminal.

[0007] In a first aspect, a wireless communication method is provided, executed by a terminal, the method comprising:

[0008] When a terminal accesses the network via a first satellite in a first orbit, the terminal receives a first Quality of Service (QoS) parameter for the first session and a second QoS parameter for the first session.

[0009] Secondly, a wireless communication method is provided, executed by a first network-side device, the method comprising:

[0010] The first network-side device sends the first Quality of Service (QoS) parameters and the second QoS parameters of the first session.

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

[0012] The second network-side device receives the fifth QoS parameter and the sixth QoS parameter of the first session.

[0013] Fourthly, a wireless communication device is provided, comprising:

[0014] The receiving module is configured to receive a first Quality of Service (QoS) parameter and a second QoS parameter of the first session when the terminal accesses the network via a first satellite in a first orbit.

[0015] Fifthly, a wireless communication device is provided, comprising:

[0016] The sending module is used to send the first Quality of Service (QoS) parameters and the second QoS parameters of the first session.

[0017] Sixthly, a wireless communication device is provided, comprising:

[0018] The first receiving module is used to receive the fifth QoS parameter and the sixth QoS parameter of the first session.

[0019] In a seventh aspect, a wireless communication apparatus is provided, the apparatus being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect, or to implement the steps of the method described in the third aspect.

[0020] In an eighth 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.

[0021] In a ninth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to receive a first Quality of Service (QoS) parameter and a second QoS parameter of the first session when the terminal accesses a network via a first satellite in a first orbit.

[0022] In a tenth 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.

[0023] Eleventhly, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send a first Quality of Service (QoS) parameter of a first session and a second QoS parameter of the first session.

[0024] In a twelfth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to receive a fifth Quality of Service (QoS) parameter and a sixth QoS parameter of the first session.

[0025] In a thirteenth 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.

[0026] In a fourteenth 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.

[0027] In a fifteenth aspect, 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.

[0028] In a sixteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the wireless communication method as described in the first or second aspect, or to implement the steps of the method as described in the third aspect.

[0029] In this embodiment of the application, when the terminal accesses the network through the first satellite in the first orbit, the terminal receives the second QoS parameter of the first QoS parameter, so that the terminal can select the appropriate QoS parameter between the first QoS parameter and the second QoS parameter, thereby ensuring the data transmission performance of the terminal even if the network environment of the terminal changes. Attached Figure Description

[0030] Figure 1 is a schematic diagram of a communication system architecture provided in an embodiment of this application.

[0031] Figure 2 is a schematic diagram of a PDU session establishment process provided in an embodiment of this application.

[0032] Figures 3 to 8 are schematic flowcharts of the wireless communication method provided in the embodiments of this application.

[0033] Figure 9 is a schematic block diagram of a wireless communication device provided in an embodiment of this application.

[0034] Figure 10 is a schematic block diagram of another wireless communication device provided in an embodiment of this application.

[0035] Figure 11 is a schematic block diagram of another wireless communication device provided in an embodiment of this application.

[0036] Figure 12 is a schematic block diagram of a communication device provided in an embodiment of this application.

[0037] Figure 13 is a schematic diagram of the hardware structure of a terminal provided in an embodiment of this application.

[0038] Figure 14 is a schematic block diagram of a network-side device provided in an embodiment of this application. Detailed Implementation

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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), 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.

[0045] 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).

[0046] To facilitate a better understanding of the embodiments of this application, the related technologies are described.

[0047] (1) Satellite access.

[0048] 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:

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] (2) Protocol Data Unit (PDU) session establishment process.

[0054] Figure 2 is a schematic diagram of a PDU session establishment process 200 provided in an embodiment of this application.

[0055] As shown in Figure 2, the PDU session establishment process 200 may include:

[0056] S201, the UE sends a UL NAS transmission (SM container (PDU session establishment request)) to the AMF via the RAN.

[0057] 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.

[0058] 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.

[0059] S202, AMF sends Nsmf_PDU session_create SM context request (RAT type, SM container (PDU session establishment request)) to SMF.

[0060] AMF selects SMF and forwards the SM container to SMF, carrying the RAT type.

[0061] S203, SMF sends an N4 session establishment request (RAT type) to UPF.

[0062] 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.

[0063] The QoS parameters include:

[0064] Session-Aggregate Maximum Bit Rate (AMBR): The maximum rate that all non-Guaranteed Bit Rate (GBR) QoS flows within a PDU session can use.

[0065] 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.

[0066] Maximum Flow Bit Rate (MFBR): The maximum rate that a QoS flow of a GBR type can use in a PDU session.

[0067] Maximum Packet Loss Rate (MPLR): The maximum percentage of packets lost during transmission through a GBR type QoS flow in a PDU session.

[0068] S204, UPF sends an N4 session establishment response (UPF channel information) to SMF.

[0069] The UPF allocates UPF tunnel info corresponding to the PDU session to the UE and sends it to the AMF through the N4 session establishment response.

[0070] 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.

[0071] SMF generates information to be sent to the RAN and information to be sent to the UE.

[0072] 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.

[0073] 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.

[0074] S206, AMF sends an N2 PDU session request (N2 SM message, NAS message) to RAN.

[0075] 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.

[0076] S207, the RAN sends an RRC (PDU Session Establishment Acceptance (QoS Parameters)) to the UE.

[0077] 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.

[0078] It should be noted that when a user equipment (UE) accesses a satellite, it will receive the Quality of Service (QoS) parameters for the session.

[0079] However, when the UE's network environment changes, such as when the satellite the UE accesses changes or the transmission rate provided by the accessed satellite changes, the QoS parameters of the UE's established sessions may not match the changed network environment, thereby reducing the UE's data transmission performance. This application provides a wireless communication method that can guarantee the UE's data transmission performance.

[0080] In particular, the 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.

[0081] 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.

[0082] However, satellites in different orbits support different 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 be mismatched 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 services. 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. This application provides a wireless communication method that can guarantee the data transmission performance of the terminal.

[0083] 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.

[0084] 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.

[0085] Figure 3 is a schematic flowchart of a wireless communication method 310 according to an embodiment of this application.

[0086] As shown in Figure 3, the wireless communication method 310 may include at least some of the following:

[0087] S311, when the terminal accesses the network via the first satellite in the first orbit, the terminal receives the first QoS parameters of the first session and the second QoS parameters of the first session.

[0088] It should be noted that the terminal accessing the network via the first satellite as described in the embodiments of this application can be understood or replaced as:

[0089] The terminal may camp on the network corresponding to the first satellite in 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 the first orbit; or, the terminal may camp on the network corresponding to the first satellite in the first orbit in 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 the first orbit; or, the terminal may access an IP Multimedia System (IMS) network via the first satellite in the first orbit.

[0090] For example, the terminal receives the first QoS parameter and the second QoS parameter from the SMF through the first satellite and the AMF corresponding to the first satellite.

[0091] For example, the first session is a PDU session or a Packet Data Network (PDN) connection.

[0092] Of course, the first session can also be a service session or other sessions, and this application does not specifically limit it.

[0093] 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.

[0094] The first QoS parameter and the second QoS parameter may be partially the same, partially different, or completely different.

[0095] 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 including the QoS parameter corresponding to the first satellite, or the first QoS parameter including 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 including the QoS parameter corresponding to the second satellite in the second orbit, or the first QoS parameter including 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.

[0096] For example, the first orbit or the second orbit includes at least one of the following:

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] Wherein, the first orbit is different from the second orbit, or the first satellite is different from the second satellite.

[0102] Of course, the first or second track can also be a track at other altitudes, and this application does not specifically limit it.

[0103] For example, the terminal is in an idle state or a connected state.

[0104] For example, when the terminal is in an idle state, it receives a session establishment acceptance message for the first session, the session establishment acceptance message including the first QoS parameter and the second QoS parameter. As another example, when the terminal is in a connected state, it sends a session modification command for the first session, the session modification command including the first QoS parameter and the second QoS parameter.

[0105] For example, when the terminal receives the first QoS parameter and the second QoS parameter, the terminal stores the correspondence between tracks and QoS parameters, or the terminal stores the correspondence between RAT types and QoS parameters. For instance, when the terminal receives the first QoS parameter and the second QoS parameter, the terminal stores: the correspondence between the first track and the first QoS parameter, and the correspondence between the second track and the second QoS parameter; or, the terminal stores: the correspondence between the RAT type corresponding to the first track and the first QoS parameter, and the correspondence between the RAT type corresponding to the second track and the second QoS parameter.

[0106] The RAT type can be the RAT type used when the terminal accesses a satellite, which corresponds to the accessed orbit or satellite and is sent to the SMF by the accessed satellite through the AMF corresponding to the accessed satellite. The orbit of the accessed satellite can be identified by the RAT type.

[0107] For example, the RAT type corresponding to the first orbit can be: the RAT type when the terminal accesses the first satellite, which corresponds to the first orbit or the first satellite, and is sent by the first satellite to the SMF through the AMF corresponding to the first satellite. The orbit where the first satellite is located can be identified by the RAT type corresponding to the first orbit.

[0108] For example, the RAT type corresponding to the second orbit can be: the RAT type when the terminal accesses the second satellite in the second orbit, which corresponds to the second orbit or the second satellite, and is sent by the second satellite to the SMF through the AMF corresponding to the second satellite. The orbit where the second satellite is located can be identified by the RAT type corresponding to the second orbit.

[0109] The RAT type corresponding to the first track or the RAT type corresponding to the second track can be: the RAT type corresponding to GEO, the RAT type corresponding to MEO, or the RAT type corresponding to LEO.

[0110] 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.

[0111] 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.

[0112] In this embodiment of the application, when the terminal accesses the network through the first satellite in the first orbit, the terminal receives the second QoS parameter of the first QoS parameter, so that the terminal can select the appropriate QoS parameter between the first QoS parameter and the second QoS parameter, thereby ensuring the data transmission performance of the terminal even if the network environment of the terminal changes.

[0113] In some embodiments, S311 includes:

[0114] The terminal receives the first message;

[0115] The first message is used to establish or modify the first session, and the first message includes the first QoS parameter and the second QoS parameter.

[0116] For example, the terminal receives the first message from the SMF via the first satellite and the AMF corresponding to the first satellite.

[0117] For example, when the first session is a first PDU session, the first message is used to modify the first PDU session.

[0118] For example, when the first session is a first PDU session, the first message is a PDU session creation acceptance message, which includes the identifier of the first PDU session. Alternatively, when the first session is a first PDU session, the first message includes a PDU session modification command, which includes the identifier of the first PDU session.

[0119] In this embodiment, the terminal receives the first QoS parameter and the second QoS parameter through a first message. That is, the terminal can obtain the first QoS parameter and the second QoS parameter through the establishment process or modification process of the first session. In this way, it can not only receive the first QoS parameter and the second QoS parameter, but also reduce the signaling overhead introduced by receiving the QoS parameter.

[0120] In some embodiments, method 310 further includes:

[0121] When the terminal changes from the first satellite to a second satellite in a second orbit, the terminal determines to use the second QoS parameter based on the first Radio Access Technology (RAT) type transmitted by the second satellite.

[0122] 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.

[0123] It should be noted that the terminal determining to use the second QoS parameter can be understood or replaced as: the terminal uses the second QoS parameter, the terminal obtains and uses the second QoS parameter, the terminal activates the second QoS parameter, the terminal obtains and activates the second QoS parameter, the terminal determines to activate the second QoS parameter, the terminal determines the second QoS parameter as the QoS parameter used by the first session, the terminal configures or sets the second QoS parameter as the QoS parameter used by the first session, and the second QoS parameter is used as the QoS parameter used by the first session.

[0124] For example, when the terminal changes from the first satellite to a second satellite in a second orbit, the terminal obtains and uses the QoS parameter corresponding to the first RAT type, i.e., the second QoS parameter, according to the correspondence between RAT type and QoS parameter. Here, the first RAT type is the RAT type corresponding to the second orbit, which can be the RAT type when the terminal accesses the second satellite in the second orbit, corresponding to either the second orbit or the second satellite, and sent by the second satellite to the SMF through the AMF corresponding to the second satellite. The orbit of the second satellite can be identified by the RAT type corresponding to the second orbit.

[0125] In this embodiment, when the terminal changes from the first satellite in the first orbit to the second satellite in the second orbit, the terminal can guarantee its data transmission performance by changing the QoS parameters it uses.

[0126] In some embodiments, method 310 further includes:

[0127] The terminal sends the identifier of the first session; or

[0128] The terminal initiates the process of establishing the first session; or

[0129] The terminal initiates the modification process for the first session.

[0130] For example, the terminal sends the identifier of the first session and receives the first QoS parameter and the second QoS parameter. Alternatively, the terminal initiates the establishment process of the first session and receives the first QoS parameter and the second QoS parameter. Or, the terminal initiates the modification process of the first session and receives the first QoS parameter and the second QoS parameter.

[0131] In this embodiment, by sending the identifier of the first session, the network can be triggered to select appropriate QoS parameters from the first QoS parameters and the second QoS parameters, thereby ensuring the data transmission performance of the terminal. By initiating the establishment process or modification process of the first session, the network can be triggered to allocate the first QoS parameters and the second QoS parameters for the first session. That is, the terminal can obtain the first QoS parameters and the second QoS parameters through the establishment process or modification process of the first session, thereby not only enabling the reception of the first QoS parameters and the second QoS parameters, but also reducing the signaling overhead introduced by receiving QoS parameters.

[0132] In some embodiments, the terminal sends an identifier of the first session, including:

[0133] The terminal sends a second message, the second message including an identifier of the first session, wherein the second message includes one of the following:

[0134] Mobility registration update message;

[0135] Mobility location update message;

[0136] Service request message.

[0137] For example, the mobility registration update message includes an MRU message.

[0138] The MRU message includes a list of PDU sessions to be activated, which includes the identifier of the first session.

[0139] For example, before the terminal receives the first QoS parameter and the second QoS parameter, the terminal sends the second message to the target AMF through the target access network device. The second message includes the identifier of the first session. The target access network device is the access network device corresponding to the second track, and the target AMF is the AMF corresponding to the second track.

[0140] In this embodiment, the identifier of the first session is sent through the second message, so that the terminal can send the identifier of the first session through traditional update messages or service request messages. This not only enables the sending of the identifier of the first session, but also reduces the signaling overhead introduced by sending the identifier of the first session.

[0141] In some embodiments, method 310 further includes:

[0142] The terminal sends the first information;

[0143] 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 satellites in the second orbit, or the first information is used to indicate that the terminal supports access to 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 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 satellites in 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 movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits.

[0144] For example, the plurality of tracks includes the first track and the second track.

[0145] For example, during the process of the terminal accessing the first satellite, the terminal sends the first information and receives the first QoS parameter and the second QoS parameter.

[0146] In this embodiment, by introducing the first information, the network can determine, based on the first information, how to allocate QoS parameters to the terminal corresponding to the track that the terminal supports access to (or the track that the terminal supports), thereby improving the allocation efficiency of QoS parameters.

[0147] In some embodiments, the terminal sends first information, including:

[0148] The terminal sends a third message;

[0149] The third message includes the first information, and the third message is used to establish a session.

[0150] For example, during the process of the terminal accessing the first satellite, the terminal sends the first information through a third message used to establish a session. For instance, the terminal sends the third message to the SMF through the source access network device (e.g., the first satellite) and the source AMF (e.g., the AMF corresponding to the first satellite).

[0151] In this embodiment, the terminal sends the first information through a third message used to establish a session, which not only enables the sending of the first information but also reduces the signaling overhead introduced by sending the first information.

[0152] Figure 4 is a schematic flowchart of a wireless communication method 320 according to an embodiment of this application.

[0153] As shown in Figure 4, the wireless communication method 320 may include at least some of the following:

[0154] S321, the first network-side device sends the first QoS parameters and the second QoS parameters of the first session.

[0155] For example, the first network-side device may be an SMF or a network element or device with session management functionality.

[0156] For example, the first network-side device sends the first QoS parameter and the second QoS parameter to the terminal through the AMF corresponding to the first satellite and the first satellite.

[0157] In this embodiment, by sending a first QoS parameter and a second QoS parameter, the terminal can select a suitable QoS parameter from the first QoS parameter and the second QoS parameter, thereby ensuring the data transmission performance of the terminal even if the network environment of the terminal changes.

[0158] In some embodiments, S321 includes:

[0159] The first network-side device sends a first message;

[0160] The first message is used to establish or modify the first session, and the first message includes the first QoS parameter and the second QoS parameter.

[0161] For example, the first network-side device sends the first message to the terminal through the AMF corresponding to the first satellite and the first satellite.

[0162] In some embodiments, the method 320 further includes at least one of the following:

[0163] The first network-side device sends the third QoS parameter and the fourth QoS parameter of the first session. The third QoS parameter corresponds to the first QoS parameter, and the fourth QoS parameter corresponds to the second QoS parameter. The third QoS parameter and the fourth QoS parameter are QoS parameters sent to the access network device corresponding to the second track.

[0164] The first network-side device sends the fifth QoS parameter and the sixth QoS parameter of the first session to the second network-side device. The fifth QoS parameter corresponds to the first QoS parameter, and the sixth QoS parameter corresponds to the second QoS parameter.

[0165] 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 and the fourth QoS parameter to the target access network device through the AMF corresponding to the target access network device. The third QoS parameter includes the QoS parameter corresponding to the first track, and the fourth QoS parameter includes the QoS parameter corresponding to the second track. The third QoS parameter and the fourth QoS parameter are QoS parameters used by the target access network device.

[0166] For example, the second network-side device is a UPF or a network element or device with similar functionality. For instance, the first network-side device sends the fifth QoS parameter and the sixth QoS parameter to the UPF. The fifth QoS parameter includes the QoS parameter corresponding to the first track, and the sixth QoS parameter includes the QoS parameter corresponding to the second track. The fifth and sixth QoS parameters are the QoS parameters used by the UPF.

[0167] In some embodiments, the method 320 further includes at least one of the following:

[0168] The first network-side device receives the first Radio Access Technology (RAT) type from the second satellite in the second orbit;

[0169] The first network-side device determines the use of the second QoS parameter based on the first Radio Access Technology (RAT) type transmitted by the second satellite in the second orbit.

[0170] For example, the first network-side device receives the first RAT type from the second satellite through the AMF corresponding to the second satellite.

[0171] For example, the first network-side device obtains and uses the QoS parameter corresponding to the first RAT type, i.e., the second QoS parameter, according to the correspondence between RAT type and QoS parameter. Here, the first RAT type is the RAT type corresponding to the second orbit, and the RAT type corresponding to the second orbit can be: the RAT type when the terminal accesses the second satellite in the second orbit, which corresponds to the second orbit or the second satellite, and is sent by the second satellite to the SMF through the AMF corresponding to the second satellite. The orbit where the second satellite is located can be identified by the RAT type corresponding to the second orbit.

[0172] In some embodiments, the method 320 further includes at least one of the following:

[0173] The first network-side device receives the first information;

[0174] The first network-side device determines to use the second QoS parameter based on the first information;

[0175] 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 satellites in the second orbit, or the first information is used to indicate that the terminal supports access to 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 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 satellites in 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 movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits.

[0176] For example, the first network-side device receives the first information from the terminal through the AMF corresponding to the first satellite and the first satellite.

[0177] For example, the first network-side device receives the first information and determines, based on the first information, to use the second QoS parameter. For instance, the first network-side device determines to use the second QoS parameter if at least one of the following conditions is met:

[0178] The first information is used to indicate that the terminal supports access to satellites in a second orbit, or the first information is used to indicate that the terminal supports access to a second orbit, or the first information is used to indicate that the terminal supports access to a second orbit, or the first information is used to indicate that the terminal supports movement between satellites in a first orbit and satellites in a second orbit, or the first information is used to indicate that the terminal supports movement between a first orbit and a 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 movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between satellites in multiple orbits, wherein the multiple orbits include prime number second orbits.

[0179] In some embodiments, the first network-side device receives first information, including:

[0180] The first network-side device receives the third message;

[0181] The third message includes the first information, and the third message is used to establish a session.

[0182] For example, the first network-side device receives the third message from the terminal through the AMF corresponding to the first satellite and the first satellite.

[0183] In some embodiments, the first QoS parameter includes a QoS parameter corresponding to the first track; or

[0184] The second QoS parameter includes the QoS parameter corresponding to the second track.

[0185] In some embodiments, the first orbit or the second orbit includes at least one of the following:

[0186] Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

[0187] It should be understood that the wireless communication method 320 includes the process of the first network-side device sending the first QoS parameter and the second 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.

[0188] Figure 5 is a schematic flowchart of a wireless communication method 330 according to an embodiment of this application.

[0189] As shown in Figure 5, the wireless communication method 330 may include at least some of the following:

[0190] S331, the second network-side device receives the fifth QoS parameter and the sixth QoS parameter of the first session.

[0191] For example, the second network-side device may be a UPF or a network element or device with type function.

[0192] In this embodiment of the application, by receiving the fifth QoS parameter and the fourth QoS parameter, the terminal can select a suitable QoS parameter from the fifth QoS parameter and the sixth QoS parameter, thereby ensuring the data transmission performance of the terminal.

[0193] In some embodiments, S331 includes:

[0194] The second network-side device receives the fourth message;

[0195] The fourth message is used to establish the first session, and the fourth message includes the fifth QoS parameter and the sixth QoS parameter.

[0196] For example, the second network-side device receives the fourth message from the SMF.

[0197] In some embodiments, the method 330 further includes at least one of the following:

[0198] The second network-side device receives the first radio access technology (RAT) type from the second satellite in the second orbit;

[0199] The second network-side device determines the use of the sixth QoS parameter based on the first Radio Access Technology (RAT) type transmitted by the second satellite in the second orbit.

[0200] For example, the second network-side device receives the first RAT type from the second satellite through the AMF and SMF corresponding to the second satellite.

[0201] For example, the second network-side device obtains and uses the QoS parameter corresponding to the first RAT type, i.e., the second QoS parameter, according to the correspondence between RAT type and QoS parameter. Here, the first RAT type is the RAT type corresponding to the second orbit. The RAT type corresponding to the second orbit can be the RAT type when the terminal accesses the second satellite in the second orbit, which corresponds to the second orbit or the second satellite, and is sent by the second satellite to the SMF through the AMF corresponding to the second satellite. The orbit where the second satellite is located can be identified by the RAT type corresponding to the second orbit.

[0202] In some embodiments, the fifth QoS parameter includes the QoS parameter corresponding to the first track; or

[0203] The fifth QoS parameter includes the QoS parameter corresponding to the second track.

[0204] In some embodiments, the first orbit or the second orbit includes at least one of the following:

[0205] Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

[0206] It should be understood that the wireless communication method 330 includes the relevant process of the second network-side device receiving the fifth QoS parameter and the sixth 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.

[0207] The solution of this application will be described below with reference to specific embodiments.

[0208] Example 1:

[0209] In this embodiment, the UE pre-configures QoS parameters corresponding to other tracks during the process of establishing a PDU session.

[0210] Figure 6 is a schematic flowchart of a PDU session establishment process 410 provided in an embodiment of this application.

[0211] As shown in Figure 6, the PDU session establishment process 410 may include:

[0212] S411, the UE sends a PDU session establishment request (5GSM capability: first information) to AMF-1 via GEO RAN.

[0213] 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.

[0214] This first piece of information can be carried through the 5GSM capability parameters.

[0215] 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.

[0216] 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 for that RAT type.

[0217] S412, AMF-1 sends Nsmf_PDU session_create SM context request (RAT type (GEO), SM container (PDU session establishment request)) to SMF.

[0218] AMF-1 selects SMF and forwards the SM container to SMF, while carrying the RAT type.

[0219] S413, SMF determines the GEO QoS parameters and LEO / MEO QoS parameters based on the first information and the RAT type.

[0220] SMF assigns QoS parameters for at least one track based on at least one of the following: operator policy (e.g., operator-supported tracks), first information, and RAT type.

[0221] 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 allocates QoS parameters for both GEO and LEO. If the operator only supports GEO, the SMF allocates QoS parameters for GEO only. If the operator also supports LEO and MEO, the SMF allocates QoS parameters for GEO, MEO, and LEO simultaneously.

[0222] It should be noted that:

[0223] 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.

[0224] 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.

[0225] S414, SMF sends an N4 session establishment request (GEO QoS parameters, LEO / MEO QoS parameters) to UPF.

[0226] 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.

[0227] For example, the SMF sends the GEO QoS parameters to the UPF via QER, along with the QoS parameters for other tracks (if any). It should be noted that "other tracks" can be understood or replaced with the RAT type corresponding to those tracks. The QoS parameters for other tracks include at least one of the following: Session-AMBR, GFBR, MFBR, MPLR.

[0228] S415, UPF sends an N4 session establishment response (UPF channel information) to SMF.

[0229] After receiving the N4 session establishment request from the SMF, the UPF saves the mapping between tracks and QoS parameters; or saves the mapping between RAT types and QoS parameters. For example, the UPF saves the mapping between LEO and LEO QoS parameters, or the UPF saves the mapping between IOT NTN LEO and IOT NTN LEO QoS parameters.

[0230] The UPF allocates UPF tunnel info corresponding to the PDU session to the UE and sends it to the AMF through the N4 session establishment response.

[0231] 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, LEO / MEO QoS parameters))) to AMF-1.

[0232] SMF generates information to be sent to the GEO RAN and information to be sent to the UE.

[0233] 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 GEO QoS profile may also include parameters such as Packet Delay Budget (PDB) and Packet Error Rate (PER).

[0234] 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.

[0235] The information sent by SMF to GEO RAN may also include: QoS parameters for other tracks (if any). Optionally, QoS parameters for other tracks are carried via Protocol Configuration Option (PCO). It should be noted that "other tracks" can be understood or replaced with the RAT type for those other tracks. QoS parameters for other tracks include at least one of the following: Session-AMBR, GFBR, MFBR, MPLR, Packet Delay Budget (PDB), Packet Error Rate (PER), etc.

[0236] The information sent by SMF to the UE also includes: QoS parameters for other tracks (if any). It should be noted that "other tracks" can be understood or replaced with the RAT type corresponding to those tracks. QoS parameters for other tracks include at least one of the following: Session-AMBR, GFBR, MFBR, MPLR.

[0237] S417, AMF-1 sends an N2 PDU session request (N2 SM message, NAS message) to the GEO RAN.

[0238] AMF-1 sends information intended for GEO RAN (i.e., N2 SM messages) and information intended for UE (i.e., NAS messages) to GEO RAN via N2 PDU session requests.

[0239] S418, GEO RAN sends RRC (PDU Session Establishment Acceptance (GEO QoS Parameters, LEO / MEO QoS Parameters)) to UE.

[0240] The GEO RAN stores the N2 SM message and sends the NAS message (i.e., PDU session establishment acceptance) to the UE.

[0241] The UE saves the GEO QoS parameters of the PDU session and the QoS parameters of other tracks in the same PDU session.

[0242] The UE stores the correspondence between tracks and QoS parameters; or the UE stores the correspondence between RAT types and QoS parameters. For example, the UE stores the correspondence between LEO and LEO QoS parameters, or the UE stores the correspondence between IOT NTN LEO and IOT NTN LEO QoS parameters.

[0243] If the UE does not receive the QoS parameters for other tracks, 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, the PDU session is marked as available.

[0244] It is important to note that the QoS parameters of a PDU session include both PDU session-level QoS parameters (e.g., session-AMBR) and QoS stream-level QoS parameters (e.g., GFBR).

[0245] Furthermore, this embodiment uses the establishment of a PDU session as an example for introduction. During the PDU session modification process, QoS flows can also be created or modified for the UE. When creating or modifying QoS flows, it is also necessary or possible to allocate QoS parameters corresponding to other tracks.

[0246] In this embodiment, the UE can obtain multiple QoS parameters of the PDU session. When the UE moves from the current track to other tracks, the UE can select the appropriate QoS parameters from these multiple QoS parameters to continue using the PDU session. 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.

[0247] Example 2:

[0248] In this embodiment, when the UE is in idle state, if it moves from track-1 to track-2, it determines to use the QoS parameters corresponding to track-2.

[0249] Figure 7 is a schematic flowchart of a QoS parameter modification process 420 provided in an embodiment of this application.

[0250] As shown in Figure 7, the QoS parameter modification process 420 includes:

[0251] S421, the UE accesses the network via GEO RAN and establishes a PDU session.

[0252] The UE accesses the network via GEO RAN and establishes a PDU session.

[0253] It should be understood that when the UE establishes a PDU session at GEO, the SMF simultaneously allocates LEO QoS parameters and sends them to the UE. Optionally, the SMF sends the LEO QoS parameters to the GEO RAN base station. The LEO QoS parameters sent by the SMF to the UE and the LEO QoS parameters sent by the SMF to the GEO RAN may differ partially; this embodiment does not impose specific limitations on this.

[0254] S422, UE confirms switch to LEO.

[0255] The UE determines that it needs to switch / change to LEO, for example, when the UE starts a low-latency application.

[0256] S423, the UE triggers the GEO RAN to enter the idle state.

[0257] Optionally, if the UE is in connected state in GEO RAN, the UE enters idle state.

[0258] S424, UE initiates MRU (List of PDU Sessions to be Activated).

[0259] After the UE reselects to the LEO base station, it initiates a registration process or a Mobility Registration Update (MRU) process, carrying the PDU session ID corresponding to the APP in S422 in the list of PDU sessions to be activated.

[0260] If the UE determines that the APP can use an established PDU session and has received the LEO QoS parameters of the PDU session, the UE carries the ID of the PDU session in the list of PDU sessions to be activated in the MRU.

[0261] If the UE determines that the APP can use an established PDU session, but has not received the LEO QoS parameters for that PDU session, the UE will not include the PDU session ID in the list of PDU sessions to be activated in the MRU, or will not include the list of PDU sessions to be activated in the MRU. After the MRU closes, the UE will initiate a PDU session establishment process to create a new PDU session for transmitting data for the APP.

[0262] S425, AMF-2 sends Namf_communication_UE context transmission to AMF-1.

[0263] The AMF-2 corresponding to LEO requests and obtains the UE's context information from the AMF-1 corresponding to GEO.

[0264] S426, AMF-2 sends Nsmf_PDU session_update SM context (RAT type (LEO)) to SMF.

[0265] 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.

[0266] S427, SMF determines to use LEO QoS parameters.

[0267] SMF obtains the LEO QoS parameters corresponding to the RAT type from the LEO RAN and activates the LEO QoS parameters.

[0268] S428, SMF sends an N4 session modification request (RAT type) to UPF.

[0269] SMF sends the RAT type to UPF via the QER parameter of the N4 session modification request. UPF then obtains the LEO QoS parameter corresponding to the RAT type and activates the LEO QoS parameter.

[0270] S429, UPF sends an N4 session modification response to SMF.

[0271] UPF allocates UPF tunnel info corresponding to the PDU session to the UE and sends it to SMF through the N4 session establishment response.

[0272] S4210, UPF determines to use LEO QoS parameters.

[0273] UPF obtains the LEO QoS parameters corresponding to the RAT type based on the RAT type and enables the LEO QoS parameters.

[0274] S4211, SMF sends Nsmf_PDU session_update SM context response (N2 SM information (LEO QoS parameters)) to AMF-2.

[0275] If the SMF does not send LEO QoS parameters to the LEO RAN when establishing the PDU session, then the SMF sends the LEO QoS parameters to the LEO RAN. If the SMF has already sent LEO QoS parameters to the LEO RAN when establishing the PDU session, then the LEO RAN enables the LEO QoS parameters.

[0276] S4212, AMF-2 sends an N2 request (N2 SM information (QoS configuration (LEO QoS parameters)) to the LEO RAN.

[0277] AMF-2 sends N2 SM information to LEO RAN via N2 request.

[0278] S4213, LEO RAN sends RRC reconfiguration to UE.

[0279] This RRC reconfiguration is used by the LEO RAN to reconfigure the UE (e.g., resource reconfiguration) to match LEO QoS parameters.

[0280] S4214, LEO RAN sends N2 request ACK to AMF-2.

[0281] S4215, AMF-2 sends MRU acceptance (status information) to UE.

[0282] 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.

[0283] S4216, the UE sends an MRU completion message to AMF-2.

[0284] The UE replies with a registration complete message or an MRU complete message.

[0285] S4217, the UE determines to use the LEO QoS parameters.

[0286] The UE obtains the LEO QoS parameters corresponding to the RAT type based on the RAT type and activates the LEO QoS parameters.

[0287] In this embodiment, when the UE moves to another track, by activating the QoS parameters of the PDU session corresponding to the changed track, 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.

[0288] Example 3:

[0289] In this embodiment, when the UE is in connected state, if it moves from track-1 to track-2, the QoS parameters corresponding to track-2 are activated.

[0290] Figure 8 is a schematic flowchart of a QoS parameter modification process 430 provided in an embodiment of this application.

[0291] As shown in Figure 8, the QoS parameter modification process 430 includes:

[0292] S431, Measurement and Switching Decisions.

[0293] The UE measures the target base station based on the network configuration and decides whether to switch to LEO RAN.

[0294] It should be understood that when the UE establishes a PDU session at GEO, the SMF simultaneously allocates LEO QoS parameters and sends them to the UE. Optionally, the SMF sends the LEO QoS parameters to the GEO RAN base station. The LEO QoS parameters sent by the SMF to the UE and the LEO QoS parameters sent by the SMF to the GEO RAN may differ partially; this embodiment does not impose specific limitations on this.

[0295] S432, GEO RAN sends a handover request to AMF-1.

[0296] The GEO RAN sends a handover request to AMF-1 (e.g., the source AMF), carrying information about the LEO RAN.

[0297] S433, AMF-1 selects AMF-2.

[0298] If an AMF needs to be changed, AMF-1 will select AMF-2 (e.g., the target AMF).

[0299] S434, AMF-1 sends a Namf_Communication_Create UE Context Request to AMF-2.

[0300] AMF-1 sends a createUEContext request to AMF-2 via Namf_Communication_CreateUEContextRequest.

[0301] S435, AMF-2 sends an Nsmf_PDU session_update SM context request to SMF.

[0302] AMF-2 sends an updateSMContext request to SMF via Nsmf_PDU session_updateSMContext request. This updateSMContext request carries the RAT type, such as the type corresponding to LEO.

[0303] S436, SMF determines to use LEO QoS parameters.

[0304] SMF obtains the LEO QoS parameters corresponding to the RAT type from the LEO RAN and activates the LEO QoS parameters.

[0305] S437, SMF sends an N4 session modification request (RAT type) to UPF.

[0306] SMF sends the RAT type to UPF via the QER parameter of the N4 session modification request. UPF then obtains the LEO QoS parameter corresponding to the RAT type and activates the LEO QoS parameter.

[0307] S438, UPF sends an N4 session modification response to SMF.

[0308] UPF allocates UPF tunnel info corresponding to the PDU session to the UE and sends it to SMF through the N4 session establishment response.

[0309] S439, UPF determines to use LEO QoS parameters.

[0310] UPF obtains the LEO QoS parameters corresponding to the RAT type based on the RAT type and enables the LEO QoS parameters.

[0311] S4310, SMF sends Nsmf_PDU session_update SM context response (N2 SM information (LEO QoS parameters)) to AMF-2.

[0312] If the SMF does not send LEO QoS parameters to the LEO RAN when establishing the PDU session, then the SMF sends the LEO QoS parameters to the LEO RAN. If the SMF has already sent LEO QoS parameters to the LEO RAN when establishing the PDU session, then the LEO RAN enables the LEO QoS parameters.

[0313] S4311, AMF-2 performs PDU handover response management.

[0314] 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.

[0315] S4312, AMF-2 sends a handover request (LEO QoS parameters) to the LEO RAN.

[0316] AMF-2 sends N2 SM information to the LEO RAN via a handover request. The N2 SM information includes LEO QoS parameters.

[0317] S4313, LEO RAN sends a handover request confirmation to AMF-2.

[0318] The LEO RAN allocates radio resources to the UE and sends a handover request confirmation to the AMF-2.

[0319] S4314, AMF-2 sends a Namf_Communication_Create UE Context response to AMF-1.

[0320] AMF-2 sends the radio resources allocated by the LEO RAN to the UE to AMF-1 through Namf_Communication_Create UE Context Response.

[0321] S4315, AMF-1 sends a handover command to GEO RAN.

[0322] S4316, GEO RAN sends a handover command to UE.

[0323] S4317, the UE determines to use the LEO QoS parameters.

[0324] The UE obtains the LEO QoS parameters corresponding to the RAT type based on the RAT type and activates the LEO QoS parameters.

[0325] S4318, the UE sends a handover confirmation to the LEO RAN.

[0326] 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.

[0327] S4318, LEO RAN sends a handover notification to AMF-2.

[0328] The LEO RAN sends a handover notification to AMF-2 to inform AMF-2 that the handover is complete.

[0329] S4319, AMF-2 sends an Nsmf_PDU session_update SM context request (handover completion indication) to SMF.

[0330] AMF-2 notifies the SMF switchover is complete by sending an Nsmf_PDU session_updateSM context request.

[0331] S4320, the UE initiates the registration process.

[0332] For example, the UE initiates an MRU procedure.

[0333] In this embodiment, when the UE moves to another track, by activating the QoS parameters of the PDU session corresponding to the changed track, 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.

[0334] 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).

[0335] 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.

[0336] 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.

[0337] 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.

[0338] Specifically, referring to Figure 9, when the wireless communication device is a terminal or a component within a terminal, the wireless communication device 440 includes:

[0339] The receiving module 441 is used to receive a first quality of service (QoS) parameter and a second QoS parameter of the first session when the terminal accesses the network via a first satellite in a first orbit.

[0340] In some embodiments, the receiving module 441 is specifically used for:

[0341] Receive the first message;

[0342] The first message is used to establish or modify the first session, and the first message includes the first QoS parameter and the second QoS parameter.

[0343] In some embodiments, the apparatus further includes:

[0344] The processing module is configured to determine the use of the second QoS parameter based on the first Radio Access Technology (RAT) type transmitted by the second satellite when the terminal changes from the first satellite to a second satellite in a second orbit.

[0345] In some embodiments, the apparatus further includes a first transmitting module, configured to:

[0346] Send the identifier of the first session; or

[0347] Initiate the process of establishing the first session; or

[0348] Initiate the modification process for the first session.

[0349] In some embodiments, the first sending module is specifically used for:

[0350] Send a second message, the second message including an identifier of the first session, wherein the second message includes one of the following:

[0351] Mobility registration update message;

[0352] Mobility location update message;

[0353] Service request message.

[0354] In some embodiments, the apparatus further includes a second transmitting module for:

[0355] Send the first message;

[0356] 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 satellites in the second orbit, or the first information is used to indicate that the terminal supports access to 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 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 satellites in 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 movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits.

[0357] In some embodiments, the second sending module is specifically used for:

[0358] Send a third message;

[0359] The third message includes the first information, and the third message is used to establish a session.

[0360] In some embodiments, the first QoS parameter includes a QoS parameter corresponding to the first track; or

[0361] The second QoS parameter includes the QoS parameter corresponding to the second track.

[0362] In some embodiments, the first orbit or the second orbit includes at least one of the following:

[0363] Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

[0364] Referring to Figure 10, 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:

[0365] The sending module 451 is used to send the first QoS parameters of the first session and the second QoS parameters of the first session.

[0366] In some embodiments, the sending module 451 is specifically used for:

[0367] Send the first message;

[0368] The first message is used to establish or modify the first session, and the first message includes the first QoS parameter and the second QoS parameter.

[0369] In some embodiments, the sending module 451 is further configured to perform at least one of the following:

[0370] Send the third QoS parameter and the fourth QoS parameter of the first session, wherein the third QoS parameter corresponds to the first QoS parameter and the fourth QoS parameter corresponds to the second QoS parameter, and the third QoS parameter and the fourth QoS parameter are QoS parameters sent to the access network device corresponding to the second track;

[0371] Send the fifth QoS parameter of the first session and the sixth QoS parameter of the first session to the second network-side device. The fifth QoS parameter corresponds to the first QoS parameter, and the sixth QoS parameter corresponds to the second QoS parameter.

[0372] In some embodiments, the apparatus further includes:

[0373] A first receiving module is used to receive a first radio access technology (RAT) type from a second satellite in a second orbit;

[0374] The first processing module is used to determine the use of the second QoS parameter based on the first Radio Access Technology (RAT) type transmitted by the second satellite in the second orbit.

[0375] In some embodiments, the device further includes at least one of the following:

[0376] The second receiving module is used to receive the first information;

[0377] The second processing module is used to determine the use of the second QoS parameter based on the first information;

[0378] 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 satellites in the second orbit, or the first information is used to indicate that the terminal supports access to 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 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 satellites in 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 movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits.

[0379] In some embodiments, the second receiving module is specifically used for:

[0380] Receive third message;

[0381] The third message includes the first information, and the third message is used to establish a session.

[0382] In some embodiments, the first QoS parameter includes a QoS parameter corresponding to the first track; or

[0383] The second QoS parameter includes the QoS parameter corresponding to the second track.

[0384] In some embodiments, the first orbit or the second orbit includes at least one of the following:

[0385] Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

[0386] Referring to Figure 11, 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:

[0387] The first receiving module 461 is used to receive the fifth QoS parameter and the sixth QoS parameter of the first session.

[0388] In some embodiments, the first receiving module 461 is specifically used for:

[0389] Received the fourth message;

[0390] The fourth message is used to establish the first session, and the fourth message includes the fifth QoS parameter and the sixth QoS parameter.

[0391] In some embodiments, the device further includes at least one of the following:

[0392] The second receiving module is used to receive the first radio access technology (RAT) type from the second satellite in the second orbit;

[0393] The processing module is used to determine the sixth QoS parameter to be used based on the first Radio Access Technology (RAT) type transmitted by the second satellite in the second orbit.

[0394] In some embodiments, the fifth QoS parameter includes the QoS parameter corresponding to the first track; or

[0395] The fifth QoS parameter includes the QoS parameter corresponding to the second track.

[0396] In some embodiments, the first orbit or the second orbit includes at least one of the following:

[0397] Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geosynchronous Orbit (GEO), and Highly Elliptical Orbit (HEO).

[0398] The apparatus provided in this application embodiment can implement the various processes implemented in the method embodiments of Figures 3 to 8 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0399] As shown in Figure 12, this application embodiment also provides a communication device 500, including a processor 501 and a memory 502. The memory 502 stores programs 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 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, this will not be described again here.

[0400] 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, 6 to 8. 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 9. Specifically, Figure 13 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0401] 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.

[0402] 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 13 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.

[0403] 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.

[0404] 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.

[0405] 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.

[0406] 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.

[0407] The radio frequency unit 601 is used to receive the first quality of service (QoS) parameters of the first session and the second QoS parameters of the first session when the terminal accesses the network through the first satellite in the first orbit.

[0408] In this embodiment of the application, when the terminal accesses the network through the first satellite in the first orbit, the terminal receives the second QoS parameter of the first QoS parameter, so that the terminal can select the appropriate QoS parameter between the first QoS parameter and the second QoS parameter, thereby ensuring the data transmission performance of the terminal even if the network environment of the terminal changes.

[0409] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of method embodiment 310 and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0410] 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 embodiments shown in Figures 4, 6 to 8. This first network-side device embodiment corresponds to the above-described first network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effects.

[0411] 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 embodiments shown in Figures 5 to 8. This second network-side device embodiment corresponds to the above-described second network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and achieve the same technical effects.

[0412] Specifically, this application also provides a network-side device. As shown in FIG14, the network-side device 700 includes a processor 701, a network interface 702, and a memory 703. The network-side device may be a wireless communication device as shown in FIG10 or FIG11. The network interface 702 is, for example, a common public radio interface (CPRI).

[0413] For example, when the network-side device 700 is the first network-side device, the network interface 702 is used to send the first quality of service (QoS) parameters of the first session and the second QoS parameters of the first session.

[0414] In this embodiment, by sending a first QoS parameter and a second QoS parameter, the terminal can select a suitable QoS parameter from the first QoS parameter and the second QoS parameter, thereby ensuring the data transmission performance of the terminal even if the network environment of the terminal changes.

[0415] For example, when the network-side device 700 is a second network-side device, the network interface 702 is used to receive the fifth QoS parameter of the first session and the sixth QoS parameter of the first session.

[0416] In this embodiment of the application, by receiving the fifth QoS parameter and the fourth QoS parameter, the terminal can select a suitable QoS parameter from the fifth QoS parameter and the sixth QoS parameter, thereby ensuring the data transmission performance of the terminal.

[0417] 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 FIG10 or FIG11 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0418] 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.

[0419] 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.

[0420] 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.

[0421] 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.

[0422] 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.

[0423] This application also provides a wireless communication system, including: a terminal, a first network-side device, and a second 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.

[0424] 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.

[0425] 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.

[0426] 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, comprising: When a terminal accesses the network via a first satellite in a first orbit, the terminal receives a first Quality of Service (QoS) parameter for the first session and a second QoS parameter for the first session.

2. The method according to claim 1, wherein, The terminal receives a first Quality of Service (QoS) parameter and a second QoS parameter for the first session, including: The terminal receives the first message; The first message is used to establish or modify the first session, and the first message includes the first QoS parameter and the second QoS parameter.

3. The method according to claim 1 or 2, wherein, The method further includes: When the terminal changes from the first satellite to a second satellite in a second orbit, the terminal determines to use the second QoS parameter based on the first Radio Access Technology (RAT) type transmitted by the second satellite.

4. The method according to any one of claims 1 to 3, wherein, The method further includes: The terminal sends the identifier of the first session; or The terminal initiates the process of establishing the first session; or The terminal initiates the modification process for the first session.

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

6. The method according to any one of claims 1 to 5, wherein, The method further includes: The terminal sends the first 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 satellites in the second orbit, or the first information is used to indicate that the terminal supports access to 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 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 satellites in 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 movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits.

7. The method according to claim 6, wherein, The terminal sends first information, including: The terminal sends a third message; The third message includes the first information, and the third message is used to establish a session.

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 claim 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 first Quality of Service (QoS) parameters and the second QoS parameters of the first session.

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

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

13. The method according to any one of claims 10 to 12, wherein, The method further includes at least one of the following: The first network-side device receives the first Radio Access Technology (RAT) type from the second satellite in the second orbit; The first network-side device determines the use of the second QoS parameter based on the first Radio Access Technology (RAT) type transmitted by the second satellite in the second orbit.

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 determines to use the second QoS parameter based on the first 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 satellites in the second orbit, or the first information is used to indicate that the terminal supports access to 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 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 satellites in 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 movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits.

15. The method according to claim 14, wherein, The first network-side device receives first information, including: The first network-side device receives the third message; The third message includes the first information, and the third message is used to establish a session.

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 receives the fifth QoS parameter and the sixth QoS parameter of the first session.

19. The method according to claim 18, wherein, The second network-side device receives the fifth QoS parameter and the sixth QoS parameter of the first session, including: The second network-side device receives the fourth message; The fourth message is used to establish the first session, and the fourth message includes the fifth QoS parameter and the sixth QoS parameter.

20. The method according to claim 18 or 19, wherein, The method further includes at least one of the following: The second network-side device receives the first radio access technology (RAT) type from the second satellite in the second orbit; The second network-side device determines the use of the sixth QoS parameter based on the first Radio Access Technology (RAT) type transmitted by the second satellite in the second orbit.

21. The method according to any one of claims 18 to 20, wherein, The fifth 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.

22. The method according to claim 21, 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).

23. A wireless communication device, comprising: The receiving module is configured to receive a first Quality of Service (QoS) parameter and a second QoS parameter of the first session when the terminal accesses the network via a first satellite in a first orbit.

24. The apparatus according to claim 23, wherein, The device further includes: The processing module is configured to determine the use of the second QoS parameter based on the first Radio Access Technology (RAT) type transmitted by the second satellite when the terminal changes from the first satellite to a second satellite in a second orbit.

25. The apparatus according to claim 23 or 24, wherein, The device further includes a first transmitting module for: Send the identifier of the first session; or Initiate the process of establishing the first session; or Initiate the modification process for the first session.

26. The apparatus according to any one of claims 23 to 25, wherein, The device further includes a second transmitting module for: Send the first message; 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 satellites in the second orbit, or the first information is used to indicate that the terminal supports access to 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 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 satellites in 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 movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits.

27. A wireless communication device, comprising: The sending module is used to send the first Quality of Service (QoS) parameters and the second QoS parameters of the first session.

28. The apparatus according to claim 27, wherein, The device further includes: A first receiving module is used to receive a first radio access technology (RAT) type from a second satellite in a second orbit; The first processing module is used to determine the use of the second QoS parameter based on the first Radio Access Technology (RAT) type transmitted by the second satellite in the second orbit.

29. The apparatus according to claim 27 or 28, wherein, The device further includes at least one of the following: The second receiving module is used to receive the first information; The second processing module is used to determine the use of the second QoS parameter based on the first 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 satellites in the second orbit, or the first information is used to indicate that the terminal supports access to 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 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 satellites in 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 movement between satellites in multiple orbits, or the first information is used to indicate that the terminal supports movement between multiple orbits.

30. A wireless communication device, comprising: The first receiving module is used to receive the fifth QoS parameter and the sixth QoS parameter of the first session.

31. The apparatus according to claim 30, wherein, The device further includes at least one of the following: The second receiving module is used to receive the first radio access technology (RAT) type from the second satellite in the second orbit; The processing module is used to determine the sixth QoS parameter to be used based on the first Radio Access Technology (RAT) type transmitted by the second satellite in the second orbit.

32. 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.

33. 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 22.

34. 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 22.

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