Wireless communication method, terminal, and network side device

Abstract

The present application relates to the field of communications, and discloses a wireless communication method, a terminal, and a network side device. The wireless communication method in embodiments of the present application comprises: a terminal determines, on the basis of first information, a first RAT associated with a first service, wherein the first information comprises a first association relationship, the first association relationship is an association relationship between service information and one or more RATs, the service information in the first association relationship at least comprises service information of the first service, and the first RAT comprises the one or more RATs.

Description

Wireless communication methods, terminals and network-side equipment

[0001] Cross-reference of related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202510064905.3, filed on January 15, 2025, the entire contents of which are incorporated herein by reference. 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] In multi-orbit satellite communication, there are high-orbit, medium-orbit, and low-orbit satellite communications. Different orbital satellites provide different transmission capabilities. For example, the transmission delay of high-orbit satellites is greater than that of medium-orbit satellites, which is greater than that of low-orbit satellites. When performing specific services, different services may have different requirements for transmission capabilities, and the corresponding satellite types may also be different.

[0005] Therefore, how to transmit services when at least one service is detected is a problem that needs to be solved. Summary of the Invention

[0006] This application provides a wireless communication method, terminal, and network-side device that can solve the problem of how to transmit services when at least one service is detected.

[0007] Firstly, a wireless communication method is provided, comprising:

[0008] Based on the first information, the terminal determines the first radio access technology (RAT) associated with the first service;

[0009] The first information includes a first association relationship, which is an association relationship between business information and one or more RATs. The business information in the first association relationship includes at least the business information of the first business.

[0010] The first RAT contains one or more RATs.

[0011] Secondly, a wireless communication method is provided, including:

[0012] The terminal receives a first radio access technology (RAT), wherein the first RAT includes one or more RATs;

[0013] The terminal selects a target cell based on the first RAT, wherein the RAT of the target cell is the RAT included in the first RAT.

[0014] Thirdly, a wireless communication method is provided, including:

[0015] The terminal receives second information, wherein the second information is used to indicate that the Radio Access Technology (RAT) selection has failed;

[0016] The terminal sends fifth information based on the second information, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted.

[0017] Fourthly, a wireless communication method is provided, comprising:

[0018] The terminal receives a fifth message, wherein the fifth message is used to indicate that the first service is not compatible with the Radio Access Technology (RAT), or the fifth message is used to indicate that the first service cannot be transmitted;

[0019] The terminal, based on the fifth information, suspends the transmission of the first service or shuts down the first service.

[0020] Fifthly, a wireless communication method is provided, comprising:

[0021] The terminal receives third information or fourth information, wherein the third information includes the Radio Access Technology (RAT) of the currently camped cell, or the third information includes the RAT of the cell to be camped after cell reselection, and the fourth information includes the RAT of the target cell.

[0022] The terminal records the current RAT, which is either the RAT contained in the third information or the RAT contained in the fourth information.

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

[0024] If the first condition is met, the terminal sends the second radio access technology (RAT) associated with the second service;

[0025] The first condition includes at least one of the following:

[0026] The RAT of the cell where the terminal is currently camped or selected is the RAT associated with the first service;

[0027] The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the second service;

[0028] One or more RATs corresponding to the first association relationship of the second service do not include the RAT of the currently camped cell;

[0029] The first association relationship is the association relationship between business information and one or more RATs.

[0030] Seventhly, a wireless communication method is provided, comprising:

[0031] If the second condition is met, the terminal performs the transmission of the second service;

[0032] The second condition includes at least one of the following:

[0033] The radio access technology (RAT) of the cell where the terminal is currently camped or selected is the RAT associated with the first service;

[0034] The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the first service.

[0035] One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell;

[0036] Alternatively, the second condition includes at least one of the following:

[0037] The RAT of the cell where the terminal is currently camped or selected is the RAT associated with the first service;

[0038] The priority of the second service is lower than the priority of the first service, or the priority of the first association of the second service is lower than the priority of the first association of the first service;

[0039] One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell;

[0040] The first association relationship is the association relationship between business information and one or more RATs.

[0041] Eighthly, a wireless communication method is provided, comprising:

[0042] The first network device sends the first information to the terminal;

[0043] The first information includes a first association relationship, which is the association relationship between business information and one or more RATs.

[0044] Ninthly, a wireless communication method is provided, comprising:

[0045] The second network device obtains the seventh information;

[0046] The second network device sends the sixth information to the first network device based on the seventh information;

[0047] The sixth piece of information includes at least one of the following: first capability information, first contract information;

[0048] The first capability information includes at least one of the following: the terminal supports multi-satellite communication; the terminal supports movement between multiple satellites; the terminal supports changes between multiple satellites; the terminal supports multi-satellite orbit communication; the terminal supports movement between multiple satellite orbits; the terminal supports changes between multiple satellite orbits; and the first subscription information includes: subscription information for multi-satellite orbit communication of the terminal in a satellite communication scenario.

[0049] The seventh piece of information includes at least one of the following: second capability information, second contract information;

[0050] The second capability information includes at least one of the following: the terminal supports multi-satellite communication; the terminal supports movement between multiple satellites; the terminal supports changes between multiple satellites; the terminal supports multi-satellite orbit communication; the terminal supports movement between multiple satellite orbits; the terminal supports changes between multiple satellite orbits; the terminal does not support multi-satellite communication; the terminal does not support movement between multiple satellites; the terminal does not support changes between multiple satellite orbits; the terminal does not support multi-satellite orbit communication; the terminal does not support movement between multiple satellite orbits; the terminal does not support changes between multiple satellite orbits;

[0051] The second contract information includes at least one of the following:

[0052] The first contract information;

[0053] In satellite communication scenarios, the terminal does not contain subscription information for multi-satellite orbit communication.

[0054] In a tenth aspect, a wireless communication device is provided, comprising:

[0055] The processing module is used to determine the first radio access technology (RAT) associated with the first service based on the first information.

[0056] The first information includes a first association relationship, which is an association relationship between business information and one or more RATs. The business information in the first association relationship includes at least the business information of the first business.

[0057] The first RAT contains one or more RATs.

[0058] Eleventhly, a wireless communication device is provided, comprising:

[0059] A receiving module is configured to receive a first radio access technology (RAT), wherein the first RAT includes one or more RATs;

[0060] The processing module is configured to select a target cell based on the first RAT, wherein the RAT of the target cell is the RAT included in the first RAT.

[0061] In a twelfth aspect, a wireless communication device is provided, comprising:

[0062] A receiving module is configured to receive second information, wherein the second information is used to indicate that the Radio Access Technology (RAT) selection has failed;

[0063] The sending module is configured to send fifth information based on the second information, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted.

[0064] In a thirteenth aspect, a wireless communication device is provided, comprising:

[0065] A receiving module is configured to receive fifth information, wherein the fifth information is used to indicate that the first service is incompatible with the Radio Access Technology (RAT), or the fifth information is used to indicate that the first service cannot be transmitted;

[0066] The processing module is used to suspend the transmission of the first service or shut down the first service based on the fifth information.

[0067] In a fourteenth aspect, a wireless communication device is provided, comprising:

[0068] A receiving module is configured to receive third information or fourth information, wherein the third information includes the Radio Access Technology (RAT) of the currently camped cell, or the third information includes the RAT of the cell to be camped after cell reselection, and the fourth information includes the RAT of the target cell.

[0069] A processing module is used to record the current RAT, wherein the current RAT is the RAT contained in the third information, or the current RAT is the RAT contained in the fourth information.

[0070] In a fifteenth aspect, a wireless communication device is provided, comprising: a transmitting module;

[0071] If the first condition is met, the transmitting module is used to transmit the second radio access technology (RAT) associated with the second service;

[0072] The first condition includes at least one of the following:

[0073] The RAT of the cell currently camped or selected by the wireless communication device is the RAT associated with the first service;

[0074] The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the second service;

[0075] One or more RATs corresponding to the first association relationship of the second service do not include the RAT of the currently camped cell;

[0076] The first association relationship is the association relationship between business information and one or more RATs.

[0077] In a sixteenth aspect, a wireless communication device is provided, comprising: a transmitting module and a receiving module;

[0078] If the second condition is met, the sending module or the receiving module is used to perform the transmission of the second service;

[0079] The second condition includes at least one of the following:

[0080] The radio access technology (RAT) of the cell where the wireless communication device is currently camped or selected is the RAT associated with the first service.

[0081] The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the first service.

[0082] One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell;

[0083] Alternatively, the second condition includes at least one of the following:

[0084] The RAT of the cell currently camped or selected by the wireless communication device is the RAT associated with the first service;

[0085] The priority of the second service is lower than the priority of the first service, or the priority of the first association of the second service is lower than the priority of the first association of the first service;

[0086] One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell;

[0087] The first association relationship is the association relationship between business information and one or more RATs.

[0088] In a seventeenth aspect, a wireless communication device is provided, comprising:

[0089] The sending module is used to send the first information to the terminal;

[0090] The first information includes a first association relationship, which is the association relationship between business information and one or more RATs.

[0091] Eighteenth aspect, a wireless communication device is provided, comprising:

[0092] The receiving module is used to acquire the seventh information;

[0093] The sending module is used to send the sixth information to the first network device according to the seventh information;

[0094] The sixth piece of information includes at least one of the following: first capability information, first contract information;

[0095] The first capability information includes at least one of the following: the terminal supports multi-satellite communication; the terminal supports movement between multiple satellites; the terminal supports changes between multiple satellites; the terminal supports multi-satellite orbit communication; the terminal supports movement between multiple satellite orbits; the terminal supports changes between multiple satellite orbits; and the first subscription information includes: subscription information for multi-satellite orbit communication of the terminal in a satellite communication scenario.

[0096] The seventh piece of information includes at least one of the following: second capability information, second contract information;

[0097] The second capability information includes at least one of the following: the terminal supports multi-satellite communication; the terminal supports movement between multiple satellites; the terminal supports changes between multiple satellites; the terminal supports multi-satellite orbit communication; the terminal supports movement between multiple satellite orbits; the terminal supports changes between multiple satellite orbits; the terminal does not support multi-satellite communication; the terminal does not support movement between multiple satellites; the terminal does not support changes between multiple satellite orbits; the terminal does not support multi-satellite orbit communication; the terminal does not support movement between multiple satellite orbits; the terminal does not support changes between multiple satellite orbits;

[0098] The second contract information includes at least one of the following:

[0099] The first contract information;

[0100] In satellite communication scenarios, the terminal does not contain subscription information for multi-satellite orbit communication.

[0101] In a nineteenth aspect, a wireless communication device is provided, the device being configured to perform the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect, or implement the steps of the method described in the third aspect, or implement the steps of the method described in the fourth aspect, or implement the steps of the method described in the fifth aspect, or implement the steps of the method described in the sixth aspect, or implement the steps of the method described in the seventh aspect, or implement the steps of the method described in the eighth aspect, or implement the steps of the method described in the ninth aspect.

[0102] In a twentieth 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, or the steps of the method as described in the second aspect, or the steps of the method as described in the third aspect, or the steps of the method as described in the fourth aspect, or the steps of the method as described in the fifth aspect, or the steps of the method as described in the sixth aspect, or the steps of the method as described in the seventh aspect.

[0103] In a twenty-first aspect, a terminal is provided, including a processor and a communication interface;

[0104] The processor is used to determine the first radio access technology (RAT) associated with the first service based on the first information.

[0105] The first information includes a first association relationship, which is an association relationship between business information and one or more RATs. The business information in the first association relationship includes at least the business information of the first business.

[0106] The first RAT contains one or more RATs.

[0107] In a twenty-second aspect, a terminal is provided, including a processor and a communication interface;

[0108] The communication interface is used to receive a first wireless access technology (RAT), wherein the first RAT includes one or more RATs.

[0109] The processor is configured to select a target cell based on the first RAT, wherein the RAT of the target cell is the RAT included in the first RAT.

[0110] In a twentieth aspect, a terminal is provided, including a processor and a communication interface;

[0111] The communication interface is used to receive second information, wherein the second information is used to indicate that the Radio Access Technology (RAT) selection has failed;

[0112] The communication interface is also used to send fifth information based on the second information, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted.

[0113] In a twentieth aspect, a terminal is provided, including a processor and a communication interface;

[0114] The communication interface is used to receive fifth information, wherein the fifth information is used to indicate that the first service is not compatible with the Radio Access Technology (RAT), or the fifth information is used to indicate that the first service cannot be transmitted.

[0115] The processor is used to suspend the transmission of the first service or shut down the first service based on the fifth information.

[0116] In a twenty-fifth aspect, a terminal is provided, including a processor and a communication interface;

[0117] The communication interface is used to receive third information or fourth information, wherein the third information includes the Radio Access Technology (RAT) of the currently camped cell, or the third information includes the RAT of the cell to be camped after cell reselection, and the fourth information includes the RAT of the target cell.

[0118] The processor is used to record the current RAT, which is either the RAT contained in the third information or the RAT contained in the fourth information.

[0119] In a twenty-sixth aspect, a terminal is provided, including a processor and a communication interface;

[0120] If the first condition is met, the communication interface is used to send the second radio access technology (RAT) associated with the second service;

[0121] The first condition includes at least one of the following:

[0122] The RAT of the cell where the terminal is currently camped or selected is the RAT associated with the first service;

[0123] The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the second service;

[0124] One or more RATs corresponding to the first association relationship of the second service do not include the RAT of the currently camped cell;

[0125] The first association relationship is the association relationship between business information and one or more RATs.

[0126] In a twenty-seventh aspect, a terminal is provided, including a processor and a communication interface;

[0127] If the second condition is met, the communication interface is used to perform the transmission of the second service;

[0128] The second condition includes at least one of the following:

[0129] The radio access technology (RAT) of the cell where the terminal is currently camped or selected is the RAT associated with the first service;

[0130] The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the first service.

[0131] One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell;

[0132] Alternatively, the second condition includes at least one of the following:

[0133] The RAT of the cell where the terminal is currently camped or selected is the RAT associated with the first service;

[0134] The priority of the second service is lower than the priority of the first service, or the priority of the first association of the second service is lower than the priority of the first association of the first service;

[0135] One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell;

[0136] The first association relationship is the association relationship between business information and one or more RATs.

[0137] In a twentieth 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 eighth aspect, or implementing the steps of the method as described in the ninth aspect.

[0138] In a twenty-ninth aspect, a network-side device is provided, including a processor and a communication interface;

[0139] The communication interface is used to send first information to the terminal;

[0140] The first information includes a first association relationship, which is the association relationship between business information and one or more RATs.

[0141] In a thirtieth aspect, a network-side device is provided, including a processor and a communication interface;

[0142] The communication interface is used to obtain the seventh information;

[0143] The communication interface is also used to send sixth information to the first network device according to the seventh information;

[0144] The sixth piece of information includes at least one of the following: first capability information, first contract information;

[0145] The first capability information includes at least one of the following: the terminal supports multi-satellite communication; the terminal supports movement between multiple satellites; the terminal supports changes between multiple satellites; the terminal supports multi-satellite orbit communication; the terminal supports movement between multiple satellite orbits; the terminal supports changes between multiple satellite orbits.

[0146] The first contract information includes: in a satellite communication scenario, the contract information for multi-satellite orbit communication of the terminal;

[0147] The seventh piece of information includes at least one of the following: second capability information, second contract information;

[0148] The second capability information includes at least one of the following: the terminal supports multi-satellite communication; the terminal supports movement between multiple satellites; the terminal supports changes between multiple satellites; the terminal supports multi-satellite orbit communication; the terminal supports movement between multiple satellite orbits; the terminal supports changes between multiple satellite orbits; the terminal does not support multi-satellite communication; the terminal does not support movement between multiple satellites; the terminal does not support changes between multiple satellite orbits; the terminal does not support multi-satellite orbit communication; the terminal does not support movement between multiple satellite orbits; the terminal does not support changes between multiple satellite orbits;

[0149] The second contract information includes at least one of the following:

[0150] The first contract information;

[0151] In satellite communication scenarios, the terminal does not contain subscription information for multi-satellite orbit communication.

[0152] In a thirty-first aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect, or the steps of the method described in the fourth aspect, or the steps of the method described in the fifth aspect, or the steps of the method described in the sixth aspect, or the steps of the method described in the seventh aspect, or the steps of the method described in the eighth aspect, or the steps of the method described in the ninth aspect.

[0153] In a thirty-second aspect, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal is configured to perform steps of the method as described in any one of the first to seventh aspects, and the network-side device is configured to perform steps of the method as described in the eighth or ninth aspect.

[0154] In a thirty-third 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, or the steps of the method as described in the fourth aspect, or the steps of the method as described in the fifth aspect, or the steps of the method as described in the sixth aspect, or the steps of the method as described in the seventh aspect, or the steps of the method as described in the eighth aspect, or the steps of the method as described in the ninth aspect.

[0155] In a thirty-fourth aspect, a computer program / program product is provided, which is stored in a storage medium and executed by at least one processor to implement the steps of the wireless communication method as described in any one of the first to ninth aspects.

[0156] In the embodiments of the first aspect of this application, the terminal can determine the first RAT associated with the first service based on the service information of the first service, and then select the target cell corresponding to the first service based on the first RAT associated with the first service. The RAT of the target cell corresponding to the first service is the RAT associated with the first service. Since the RAT and cell are determined by the RAT associated with the service, it can be ensured that the selected RAT and target cell meet the RAT and access cell required by the first service, which can ensure that the first service can be transmitted normally and meet the service experience, thereby improving satellite communication performance and user experience.

[0157] In the embodiments of the second aspect of this application, the terminal receives a first RAT (the first RAT associated with the first service), thereby enabling it to select a target cell corresponding to the first service based on the first RAT. The RAT of the target cell corresponding to the first service is the RAT associated with the first service. Since the RAT and cell are determined through the RAT associated with the service, it can be ensured that the selected RAT and target cell meet the RAT and access cell required by the first service, thus ensuring that the first service can be transmitted normally and meet the service experience, thereby improving satellite communication performance and user experience.

[0158] In an embodiment of the third aspect of this application, the NAS of the terminal receives second information from the AS of the terminal, wherein the second information is used to indicate that the RAT selection has failed; and the NAS of the terminal sends fifth information to the application layer of the terminal based on the second information, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted. Thus, the application layer of the terminal can know that the first service does not match the RAT or that the first service cannot be transmitted, and the application layer of the terminal can suspend the transmission of the first service or shut down the first service.

[0159] In an embodiment of the fourth aspect of this application, the application layer of the terminal receives fifth information from the NAS of the terminal, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted; and the application layer of the terminal suspends the transmission of the first service or shuts down the first service according to the fifth information.

[0160] In an embodiment of the fifth aspect of this application, the NAS of the terminal receives third information or fourth information from the AS of the terminal, wherein the third information includes the RAT of the currently camped cell, or the third information includes the RAT of the cell to be camped after cell reselection, and the fourth information includes the RAT of the target cell; and the NAS of the terminal records the current RAT, the current RAT being the RAT contained in the third information, or the current RAT being the RAT contained in the fourth information.

[0161] In an embodiment of the sixth aspect of this application, when the first condition is met, the terminal sends a second RAT associated with the second service, thereby selecting a target cell corresponding to the second service based on the second RAT associated with the second service. The RAT of the target cell corresponding to the second service is the RAT associated with the second service. Since the RAT and cell are determined by the RAT associated with the service, it can be ensured that the selected RAT and target cell meet the RAT and access cell required by the second service, thus ensuring that the second service can be transmitted normally and meet the service experience, thereby improving satellite communication performance and user experience.

[0162] In the embodiment of the seventh aspect of this application, when the second condition is met, the terminal performs the transmission of the second service, which can ensure the normal transmission of the second service and improve satellite communication performance and user experience.

[0163] In an embodiment of the eighth aspect of this application, a first network device sends first information to a terminal; wherein the first information includes a first association relationship, which is an association relationship between service information and one or more RATs. This allows the RAT associated with the detected service to be determined. When selecting the target cell corresponding to the detected service, the RAT of the stationary cell or the RAT of the access cell can be changed, or the RAT of the stationary cell or the access cell can remain unchanged. The RAT of the target cell corresponding to the detected service is the RAT associated with the detected service, ensuring the normal transmission of the detected service and improving satellite communication performance and user experience.

[0164] In an embodiment of the ninth aspect of this application, the second network device sends sixth information to the first network device based on seventh information, thereby enabling the second network device to send first information to the terminal based on the sixth information. The first information includes a first association relationship, which is the association relationship between service information and one or more Resource Acquisition Tables (RATs). This allows the determination of the RAT associated with the detected service. When selecting the target cell corresponding to the detected service, the RAT of the stationary cell or the RAT of the access cell can be changed, or the RAT of the stationary cell or the access cell can remain unchanged. The selected RAT of the target cell corresponding to the detected service is the RAT associated with the detected service, ensuring the normal transmission of the detected service and improving satellite communication performance and user experience. Attached Figure Description

[0165] Figure 1 is a schematic diagram of a communication system architecture provided in an embodiment of this application.

[0166] Figure 2 is one of the schematic flowcharts of a wireless communication method provided according to an embodiment of this application.

[0167] Figure 3 is a second schematic flowchart of a wireless communication method provided according to an embodiment of this application.

[0168] Figure 4 is a schematic flowchart of a wireless communication method provided according to an embodiment of this application.

[0169] Figure 5 is a fourth schematic flowchart of a wireless communication method provided according to an embodiment of this application.

[0170] Figure 6 is a fifth schematic flowchart of a wireless communication method provided according to an embodiment of this application.

[0171] Figure 7 is a schematic flowchart of a wireless communication method provided according to an embodiment of this application.

[0172] Figure 8 is a schematic flowchart of a wireless communication method provided according to an embodiment of this application.

[0173] Figure 9 is an eighth schematic flowchart of a wireless communication method provided according to an embodiment of this application.

[0174] Figure 10 is a schematic flowchart of a wireless communication method provided according to an embodiment of this application.

[0175] Figure 11 is one of the schematic diagrams of cell selection performed when a service is detected according to an embodiment of this application.

[0176] Figure 12 is a second schematic diagram of cell selection performed when a service is detected according to an embodiment of this application.

[0177] Figure 13 is a third schematic diagram of cell selection performed when a service is detected, according to an embodiment of this application.

[0178] Figure 14 is a schematic diagram of a terminal acquiring first information according to an embodiment of this application.

[0179] Figure 15 is one of the schematic block diagrams of a wireless communication device provided according to an embodiment of this application.

[0180] Figure 16 is a second schematic block diagram of a wireless communication device provided according to an embodiment of this application.

[0181] Figure 17 is a third schematic block diagram of a wireless communication device provided according to an embodiment of this application.

[0182] Figure 18 is a fourth schematic block diagram of a wireless communication device provided according to an embodiment of this application.

[0183] Figure 19 is a fifth schematic block diagram of a wireless communication device provided according to an embodiment of this application.

[0184] Figure 20 is a sixth schematic block diagram of a wireless communication device provided according to an embodiment of this application.

[0185] Figure 21 is a seventh schematic block diagram of a wireless communication device provided according to an embodiment of this application.

[0186] Figure 22 is an eighth schematic block diagram of a wireless communication device provided according to an embodiment of this application.

[0187] Figure 23 is a schematic block diagram of a wireless communication device provided according to an embodiment of this application.

[0188] Figure 24 is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0189] Figure 25 is a schematic diagram of the hardware structure of a terminal according to an embodiment of this application.

[0190] Figure 26 is one of the schematic block diagrams of a network-side device provided according to an embodiment of this application.

[0191] Figure 27 is a second schematic block diagram of a network-side device provided according to an embodiment of this application. Detailed Implementation

[0192] 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.

[0193] 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.

[0194] It is worth noting that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE) or 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), Evolved Universal Terrestrial Radio Access Network (E-UTRAN), or other systems. The terms "system" and "network" in the embodiments of 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.

[0195] 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. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment, core network equipment, or satellites. Access network equipment can also be referred to as Radio Access Network (RAN) equipment, radio access network functions, or radio access network units. Access network equipment may 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 any specific technical term. 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.

[0196] 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.

[0197] 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).

[0198] To better understand the technical solution of this application, the following explains the selection of relevant cell areas.

[0199] Cell selection refers to the process by which a terminal selects a suitable cell to camp on when it is powered on or enters a coverage area from a blind spot, by searching for allowed frequencies on the Public Land Mobile Network (PLMN).

[0200] There are two methods for cell selection: initial cell selection and cell selection based on stored information.

[0201] Initial cell selection: The UE searches for radio frequency channels within the frequency band, selects the strongest cell on each carrier frequency, reads the system information of that cell, and then judges the cells sequentially according to the S criterion. If a cell meets the S criterion, it is considered a suitable cell and is selected for camping; if a cell does not meet the S criterion, the UE continues to judge the cells on the next carrier frequency until a cell meets the S criterion.

[0202] Cell selection based on stored information: The UE acquires and stores carrier frequency information and even cell parameter information through previously received measurement and control information or detected cells, and sequentially judges cells according to the S criterion. If a cell meets the S criterion, it is considered a suitable cell and selected for camping; if a cell does not meet the S criterion, the UE continues to judge the next cell until a suitable cell is selected. If none of the stored cells meet the requirements, the initial cell selection process is initiated.

[0203] When S rxlev >0 and S qual When the value is greater than 0, the S criterion is satisfied. Where: S rxlev =Q rxlevmeas -(Q rxlevmin +Q rxlevminoffset )-Pcompensation; S qual =Q qualmeas-(Q qualmin +Q qualminoffset Pcompensation = max(P) EMAX -P powerClass ,0).

[0204] The meanings of the parameters in the S criterion are shown in Table 1.

[0205] Table 1

[0206] To better understand the technical solution of this application, the following explains the cell reselection related to this application.

[0207] Cell reselection refers to the process by which a UE, in idle mode, selects the best cell to provide service by monitoring the signal strength or quality of neighboring cells and the current cell. Through cell reselection, the UE can be guaranteed to camp on a suitable cell to the greatest extent possible in idle mode.

[0208] Cell reselection can be divided into intra-frequency cell reselection and inter-frequency cell reselection. Based on the reselection priority of the non-serving cell frequency, inter-frequency cell reselection can be further divided into high-priority inter-frequency cell reselection, intra-priority inter-frequency cell reselection, and low-priority inter-frequency cell reselection.

[0209] The cell reselection process may include:

[0210] (1) The UE obtains cell reselection-related parameters through system messages sent by the network side;

[0211] (2) The UE continues to perform measurements in this cell and determines whether to start neighbor cell measurements based on the following conditions;

[0212] For the same frequency point, the UE compares the RSRP measurement results and RSRQ measurement results with the corresponding same-frequency reselection start threshold. If the condition is met, the UE starts the measurement of the neighboring cell.

[0213] For frequency points of the same priority and frequency points of lower priority, the UE compares the RSRP measurement results and RSRQ measurement results with the corresponding inter-frequency reselection start thresholds respectively. If the conditions are met, the measurement of neighboring cells is started.

[0214] For high-priority frequency points, the UE always measures them;

[0215] (3) Based on the measurement results, the UE performs cell reselection according to the following principles;

[0216] If a high-priority inter-frequency neighbor cell exists that meets the high-priority cell reselection decision criteria, the UE will reselect to the high-priority inter-frequency neighbor cell. If there is no suitable high-priority inter-frequency neighbor cell, the UE will reselect to a co-frequency neighbor cell or a same-priority inter-frequency neighbor cell according to the R criterion. If there is no suitable high-priority inter-frequency neighbor cell, co-frequency neighbor cell, or same-priority inter-frequency neighbor cell, the UE will reselect to a low-priority inter-frequency neighbor cell according to the low-priority cell reselection decision criteria.

[0217] When there is no suitable high-priority inter-frequency cell, the UE can reselect to a cell with the same frequency or the same priority inter-frequency cell.

[0218] The UE performs cell reselection based on the R criterion, either within the same frequency range or across different frequencies with the same priority. Where R... s R represents the R value of the serving cell. t This represents the R value of the neighboring cell. Specifically: R s =Q meas,s +Q hyst R t =Q meas,t -Q offset .

[0219] The meanings of the R criterion parameters are shown in Table 2.

[0220] Table 2

[0221] The cell reselection process for cells on the same frequency or with the same priority but different frequencies includes:

[0222] When there is no suitable high-priority inter-frequency cell, the UE can reselect to a cell with the same frequency or the same priority inter-frequency cell.

[0223] A UE may not initiate intra-frequency cell measurement when the following conditions are met:

[0224] The system message carries parameter S Intrasearch and S IntrasearchQ ;

[0225] Service Community S rxlev Greater than S Intrasearch And S qual Greater than S IntrasearchQ ;

[0226] The UE may not initiate inter-frequency cell measurement with the same priority when the following conditions are met:

[0227] The system message carries parameter S nonIntrasearch and S nonIntrasearchQ ;

[0228] Service Community S rxlev Greater than S nonIntrasearch And S qual Greater than S nonIntrasearchQ ;

[0229] When the following conditions are met, the UE will reselect to a cell with the same frequency or a cell with the same priority but a different frequency:

[0230] The UE stays in the current cell for more than 1 second;

[0231] During the E-UTRAN cell reselection period, co-frequency neighboring cells or same-priority inter-frequency neighboring cells consistently outperform the serving cell, i.e., R t Greater than R s .

[0232] Key points for neighborhood re-election include:

[0233] Step 1: Whether to perform neighbor cell measurement is determined by comparing the RSRP and RSRQ measured in this cell with the corresponding reselection start threshold. If the values ​​are lower than the threshold, neighbor cell measurement is initiated.

[0234] Step 2: Under the jurisdiction measurement, determine whether the S-standard measurement and R-standard measurement are met. If they are met, select the neighboring cell; otherwise, remain in the current cell.

[0235] Specifically: the measured neighboring cells satisfy the S criterion, when S rxlev >0 and S qual When >0, the S criterion is satisfied, and the R criterion is also satisfied, i.e., R t >R s If so, then reselect to a neighboring cell.

[0236] To better understand the technical solution of this application, the problems solved by this application are explained below.

[0237] In multi-orbit satellite communication, there are high-orbit, medium-orbit, and low-orbit satellite communications. Different orbital satellites provide different transmission capabilities (i.e., different Quality of Service (QoS) requirements). Taking transmission latency as an example, generally speaking, the transmission latency of high-orbit satellites is greater than that of medium-orbit satellites, which is greater than that of low-orbit satellites. In the actual execution of services, since each service has different QoS requirements for transmission, such as different latency requirements, the preferred satellite type may also be different.

[0238] Based on the above understanding, since the UE may be covered by satellite communication cells in different orbits, if the cell is reselected according to the existing S and R criteria, there is a problem that the reselected cell does not match the services that the UE needs to perform later. For example, if the cell reselected according to the S and R criteria is a high-orbit satellite cell, but the service that the UE needs to perform later is a high-throughput or high-latency service (such as autonomous driving, voice service, etc.), then selecting a high-orbit satellite cell is not suitable due to its high latency.

[0239] Since the UE may be covered by satellite communication cells in different orbits, if the cell is reselected according to the S and R criteria, there is a problem that the reselected cell does not match the services that the UE needs to perform later.

[0240] 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.

[0241] Figure 2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of this application. As shown in Figure 2, the wireless communication method 200 may include at least some of the following:

[0242] S210, the terminal determines the first RAT associated with the first service based on the first information;

[0243] The first information includes a first association relationship, which is an association relationship between business information and one or more RATs. The business information in the first association relationship includes at least the business information of the first business.

[0244] The first RAT contains one or more RATs.

[0245] It should be understood that Figure 2 illustrates the steps or operations of the wireless communication method 200, but these steps or operations are merely examples, and other operations or variations of the various operations in Figure 2 may also be performed in this application.

[0246] In this embodiment, the terminal can determine the first RAT associated with the first service based on the service information of the first service. Then, based on the first RAT associated with the first service, the terminal can select the target cell corresponding to the first service. The RAT of the target cell is the RAT associated with the first service. Since the RAT and cell are determined by the RAT associated with the service, it can be ensured that the selected RAT and target cell meet the RAT and access cell required by the first service. This can ensure that the first service can be transmitted normally and meet the service experience, thereby improving satellite communication performance and user experience.

[0247] The first RAT described in the embodiments of this application includes one or more RATs, which can be understood as a list of RATs or a set of RATs.

[0248] In this application embodiment, the first service may be associated with multiple RATs (determined based on the first association relationship). One cell is associated with one RAT. After determining the RAT, the cell corresponding to the RAT is selected to execute the first service.

[0249] The embodiments of this application can be executed by the Non-Access Stratum (NAS) layer of the terminal. Specifically, for example, the terminal can determine the first RAT of the first service based on the first information through the NAS layer; or, the NAS layer of the terminal can determine the first RAT of the first service based on the first information.

[0250] In some embodiments, after the application layer of the terminal starts the first application, or after the terminal detects the first application, the application layer of the terminal provides the service information of the first application to the NAS layer of the terminal, so that the NAS layer of the terminal can determine the first RAT associated with the first service.

[0251] In some embodiments, where the business information of the first service matches the business information in the first association relationship, the first RAT includes part or all of the RAT associated with the business information matched in the first association relationship (i.e., the business information that matches the business information of the first service).

[0252] It should be noted that matching the business information of the first business with the business information in the first association relationship can be understood as: the business information of the first business is completely the same as the business information in the first association relationship, or the business information of the first business is at least partially the same as the business information in the first association relationship.

[0253] In some embodiments, the business information includes, but is not limited to, at least one of the following:

[0254] Service description information (such as Operating System (OS) identifier (ID), OS APP ID, etc.), Internet protocol (IP) description information (such as IP address, port number, protocol (Transfer Control Protocol (TCP) or User Datagram Protocol (UDP)), domain description information (such as Fully Qualified Domain Name (FQDN)), Data Network Name (DNN), connectivity capabilities corresponding to the service (such as IP Multimedia System (IMS) capability, Multimedia Messaging Service (MMS) capability, Internet capability, etc.), and QoS of the service.

[0255] Optionally, the QoS of the service can be used to describe the QoS requirements related to the service, such as latency, reliability, error rate, bit rate, and data rate.

[0256] In some implementations, the terminal's application layer provides service information for a first service to the terminal's NAS. This service information may include at least one of the following: service description information (e.g., the OSID, APP ID, or OS APP ID of the first service), IP description information, domain description information, DNN of the first service, connectivity capabilities corresponding to the first service, and QoS of the first service. The service information in the first association relationship may include at least one of the following: service description information (e.g., the OSID, APP ID, or OS APP ID of the service), IP description information, domain description information, DNN of the service, connectivity capabilities corresponding to the service, and QoS of the service. Only when the service information of the first service matches the service information in the first association relationship—for example, if the OSID and / or APPID of the first service matches the OSID and / or APPID in the service information of the first association relationship—is this first association relationship selected, and the corresponding RAT can be selected as the first RAT associated with the first service.

[0257] The services described in this application's embodiments can include voice services, video services, computing power services, vehicle-to-X (V2X) services, artificial intelligence (AI) services, and integrated sensing and communication (ISAC) services. The services described in this application's embodiments can also be specific applications (APPs), such as APPs providing voice services (e.g., voice APP or WeChat APP), APPs providing V2X services (e.g., V2X APP), etc. The APPs described in this application's embodiments can be specific APPs or a class of APPs. When it is a class of APPs, the type can be games, chat, shopping, etc.

[0258] In the embodiments of this application, the satellite access technology or type of each orbit can be identified by the RAT; or, the orbit of the satellite can be determined by the RAT; wherein, the orbit includes, but is not limited to, at least one of the following: Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geostationary Earth Orbit (GEO), and other satellites (OTHERSAT), such as airborne relay platforms, such as communication equipment carried on hot air balloons or drones.

[0259] In some embodiments, the RAT includes, but is not limited to, at least one of the following:

[0260] Wide Band (WB) - E-UTRAN (LEO);

[0261] WB-E-UTRAN(MEO);

[0262] WB-E-UTRAN(GEO);

[0263] WB-E-UTRAN(OTHERSAT);

[0264] Narrow Band (NB) - Internet of Things (IoT) (LEO);

[0265] NB-IoT (MEO);

[0266] NB-IoT (GEO);

[0267] NB-IoT (OTHERSAT);

[0268] Long Term Evolution for Machines (LTE-M) (LEO);

[0269] LTE-M (MEO);

[0270] LTE-M (GEO);

[0271] LTE-M (OTHERSAT);

[0272] NR(LEO);

[0273] NR(MEO);

[0274] NR(GEO);

[0275] NR (OTHERSAT);

[0276] WB-E-UTRAN;

[0277] NB-IoT;

[0278] LTE-M;

[0279] NR.

[0280] Among them, WB-E-UTRAN(LEO), WB-E-UTRAN(MEO), WB-E-UTRAN(GEO), WB-E-UTRAN(OTHERSAT), NB-IoT(LEO), NB-IoT(MEO), NB-IoT(GEO), NB-IoT(OTHERSAT), LTE-M(LEO), LTE-M(MEO), LTE-M(GEO), LTE-M(OTHERSAT), NR(LEO), NR(MEO), NR(GEO), and NR(OTHERSAT) are wireless access technologies for satellite communication in different orbits.

[0281] Among them, WB-E-UTRAN, NB-IOT, LTE-M, and NR are radio access technologies for terrestrial communication.

[0282] In some embodiments, the first information further includes at least one of the following:

[0283] The priority of business information;

[0284] The second instruction information is used to instruct the mandatory execution of RAT selection according to the first association, or to instruct the preference to execute RAT selection according to the first association;

[0285] The priority of the first association.

[0286] It should be noted that the second instruction information can also be referred to as RAT execution instruction or alternative RAT execution instruction.

[0287] In some embodiments, the wireless communication method 200 further includes:

[0288] The terminal determines the first service based on at least one of the following:

[0289] If the terminal detects only one service, the terminal will identify the detected service as the first service;

[0290] If the terminal detects at least two services, the terminal will identify the service with the highest priority among the at least two services as the first service;

[0291] If the terminal detects at least two services, the terminal will identify the service with the highest QoS requirement among the at least two services as the first service;

[0292] If the terminal detects at least two services, the terminal determines the service with the highest priority in the first association relationship among the at least two services as the first service.

[0293] The terminal described in this application only detects one service, which can be understood as the arrival of one service or the application layer of the terminal triggering the launch of an APP.

[0294] The terminal in this application embodiment detects at least two services, which can be understood as at least two services arriving. The at least two services can arrive simultaneously or the terminal's application layer can simultaneously trigger the launch of at least two apps, or the at least two services can arrive sequentially or the terminal's application layer can sequentially trigger the launch of at least two apps.

[0295] In some implementations, if the terminal detects at least two services, the terminal determines the service with the highest priority among the at least two services as the first service, thereby ensuring the transmission of the service with the highest priority.

[0296] In some implementations, if the terminal detects at least two services, the terminal determines the service with the highest QoS requirement among the at least two services as the first service, thereby ensuring the transmission of the service with the highest QoS requirement.

[0297] In some implementations, if the terminal detects at least two services, the terminal determines the service with the highest priority in the first association relationship among the at least two services as the first service, thereby ensuring the transmission of the service with the highest priority in the corresponding first association relationship.

[0298] In some embodiments, the first information may be an enhanced UE Route Selection Policy (URSP) rule, or the first information may be a multi-orbit selection rule.

[0299] Optionally, if the first information is a multi-orbit selection rule, the content carried in the first information can be as shown in Table 3 below.

[0300] Table 3

[0301] In some implementations, the first information can be called a multi-orbit selection rule, as shown in Table 4 below. Specifically, in Table 4, the priority of the multi-orbit selection rule for APP-1 is 1, the priority of the multi-orbit selection rule for APP-2 is 2, and the priority of the multi-orbit selection rule for APP-3 is 3, i.e., the priority of the multi-orbit selection rule for APP-1 > the priority of the multi-orbit selection rule for APP-2 > the priority of the multi-orbit selection rule for APP-3. The RAT associated with APP-1 is GEO and Terrestrial Network (TN), the RAT associated with APP-2 is LEO and TN, and the RAT associated with APP-3 is LEO, MEO, and TN. The RAT associated with APP-1 is enforced, the RAT associated with APP-2 is enforced, and the RAT associated with APP-3 tends to be enforced.

[0302] Table 4

[0303] Optionally, if the first information is an enhanced UE Route Selection Policy (URSP) rule, the content carried in the first information can be as shown in Table 5 below.

[0304] Table 5

[0305] In some implementations, the first information can be an enhanced URSP rule, as shown in Table 6 below. Specifically, in Table 6, the priority of the enhanced URSP rule for APP-1 is 1, the priority of the enhanced URSP rule for APP-2 is 2, and the priority of the enhanced URSP rule for APP-3 is 3, such that the priority of the enhanced URSP rule for APP-1 > the priority of the enhanced URSP rule for APP-2 > the priority of the enhanced URSP rule for APP-3. The RATs associated with APP-1 are GEO and TN, the RATs associated with APP-2 are LEO and TN, and the RATs associated with APP-3 are LEO, MEO, and TN. The RATs associated with APP-1 are enforced, the RATs associated with APP-2 are enforced, and the RATs associated with APP-3 tend to be enforced.

[0306] Table 6

[0307] In some embodiments, the wireless communication method 200 further includes:

[0308] The terminal sends the first RAT.

[0309] In this embodiment, after the terminal determines the first RAT associated with the first service based on the first information, the terminal can directly send the first RAT without determining whether the first RAT contains the RAT of the currently camped cell. When selecting the target cell corresponding to the first service based on the first RAT associated with the first service, the selected target cell is the RAT in the first RAT. Since the RAT and the target cell are determined according to the association relationship, the normal transmission of the first service can be ensured, and the satellite communication performance and user experience are improved.

[0310] In some implementations, the terminal sends the first RAT to its Access Stratum (AS) via the NAS. Thus, the terminal's AS can select the target cell corresponding to the first service based on the first RAT associated with the first service. When selecting the target cell, the terminal's AS determines the target cell according to the RAT in the first RAT; that is, the RAT of the selected target cell is the RAT in the first RAT. This ensures the normal transmission of the first service, improving satellite communication performance and user experience.

[0311] It should be noted that the term "selection" used in this application embodiment can be replaced with "reselection". For example, if the current UE is not camped or connected to any cell, then selecting a target cell based on the first RAT is a selection operation, and the RAT of the selected target cell is the RAT in the first RAT. If the current UE is already camped or connected to a cell, then selecting a target cell based on the first RAT is a reselection operation, and the RAT of the reselected target cell is the RAT in the first RAT.

[0312] In some embodiments, the wireless communication method 200 further includes:

[0313] If the first RAT does not contain the RAT of the currently camped cell, the terminal sends the first RAT.

[0314] In this embodiment, after the terminal determines the first RAT associated with the first service based on the first information, and the first RAT does not contain the RAT of the currently camped cell, the terminal can send the first RAT. Based on the first RAT associated with the first service, the terminal can select the target cell corresponding to the first service. The RAT of the selected target cell is the RAT in the first RAT, which can ensure the normal transmission of the first service and improve satellite communication performance and user experience.

[0315] In some implementations, the terminal sends the first RAT to the terminal's AS via the NAS. Thus, the terminal's AS can select the target cell corresponding to the first service based on the first RAT associated with the first service. The RAT of the selected target cell is the RAT in the first RAT, ensuring the normal transmission of the first service and improving satellite communication performance and user experience.

[0316] In some embodiments, the wireless communication method 200 further includes:

[0317] The terminal sends a first instruction message;

[0318] Wherein, the first indication information is used to indicate the forced selection of a RAT included in the first RAT, or the first indication information is used to indicate a preference for selecting a RAT included in the first RAT.

[0319] In this embodiment, the terminal sends a first RAT and a first indication information, thereby selecting the target cell corresponding to the first service based on the first RAT and the first indication information. When selecting the target cell corresponding to the first service based on the first RAT and the first indication information, the RAT of the selected target cell is the RAT in the first RAT, which can ensure the normal transmission of the first service and improve satellite communication performance and user experience.

[0320] In some embodiments, the first RAT and the first indication information may be carried in the same signaling; or, the first RAT and the first indication information may be carried in different signaling, for example, the terminal sends the first RAT first, and then sends the first indication information.

[0321] In some embodiments, the first indication information is determined based on the second indication information in the first information;

[0322] The second instruction information is used to instruct the mandatory execution of RAT selection according to the first association, or the second instruction information is used to instruct the tendency to execute RAT selection according to the first association.

[0323] In some embodiments, the wireless communication method 200 further includes:

[0324] If the first RAT list contains the RAT of the currently camped cell, the terminal uses the currently camped cell to transmit the first service.

[0325] In this embodiment, when the first RAT list contains the RAT of the currently camped cell, the terminal uses the currently camped cell to transmit the first service, which can ensure the normal transmission of the first service and improve satellite communication performance and user experience.

[0326] It should be noted that if the terminal uses the currently camped cell to transmit the first service, the terminal matches Protocol Data Unit (PDU) sessions according to the URSP matching rules, establishes or modifies them. If an existing PDU session matches the first service, the PDU session is used for transmission; otherwise, the PDU session is rebuilt.

[0327] In some embodiments, the wireless communication method 200 further includes:

[0328] The terminal obtains the first information from its local storage; or...

[0329] The terminal receives the first information from the first network device.

[0330] In this embodiment, the terminal can obtain first information from local (as agreed upon in the protocol), so that the terminal can determine the first RAT associated with the first service based on the first information.

[0331] In this embodiment, the terminal can receive first information from the first network device, so that the terminal can determine the first RAT associated with the first service based on the first information.

[0332] In some implementations, prior to S210 above, the terminal obtains the first information locally, or the terminal receives the first information from the first network device.

[0333] Optionally, the first network device may be a Policy Control function (PCF) or a Policy and Charging Rules Function (PCRF). Of course, the first network device may also be other network elements, and this application embodiment is not limited to this.

[0334] In some embodiments, the wireless communication method 200 further includes:

[0335] The terminal sends second capability information;

[0336] The second capability information includes, but is not limited to, at least one of the following:

[0337] The terminal supports multi-satellite communication;

[0338] The terminal supports movement between multiple satellites;

[0339] The terminal supports changes between multiple satellites;

[0340] The terminal supports multi-satellite orbit communication;

[0341] The terminal supports movement between multiple satellite orbits;

[0342] The terminal supports changes between multiple satellite orbits;

[0343] The terminal does not support multi-satellite communication;

[0344] The terminal does not support movement between multiple satellites;

[0345] The terminal does not support changes between multiple satellites;

[0346] The terminal does not support multi-satellite orbit communication;

[0347] The terminal does not support movement between multiple satellite orbits;

[0348] The terminal does not support changes between multiple satellite orbits.

[0349] In some implementations, the terminal sends the second capability information before the terminal obtains the first information locally, or before the terminal receives the first information from the first network device.

[0350] For example, the terminal sends second capability information to the first network device.

[0351] For example, the terminal sends second capability information to a second network device.

[0352] Optionally, the second network device can be an AMF or an MME. Of course, the second network device can also be other network elements, and this application embodiment is not limited to this.

[0353] The NAS-side embodiment of the terminal of this application has been described in detail above with reference to Figure 2. The AS-side embodiment of the terminal of this application has been described in detail below with reference to Figure 3. It should be understood that the AS-side embodiment of the terminal corresponds to the NAS-side embodiment of the terminal, and similar descriptions can be referred to the NAS-side embodiment of the terminal.

[0354] Figure 3 is a schematic flowchart of a wireless communication method 300 according to an embodiment of this application. As shown in Figure 3, the wireless communication method 300 may include at least some of the following:

[0355] S310, the terminal receives a first RAT, wherein the first RAT includes one or more RATs;

[0356] S320, the terminal selects a target cell according to the first RAT, wherein the RAT of the target cell is the RAT included in the first RAT.

[0357] It should be understood that Figure 3 illustrates the steps or operations of the wireless communication method 300, but these steps or operations are merely examples, and other operations or variations of the operations shown in Figure 3 may also be performed in this application.

[0358] In this embodiment, the terminal receives a first RAT (the first RAT associated with the first service), and can then select a target cell corresponding to the first service based on the first RAT. The RAT of the target cell corresponding to the first service is the RAT associated with the first service. Since the RAT and cell are determined by the RAT associated with the service, it can be ensured that the selected RAT and target cell meet the RAT and access cell required by the first service, thus ensuring that the first service can be transmitted normally and meet the service experience, thereby improving satellite communication performance and user experience.

[0359] The first RAT described in the embodiments of this application can be understood as a list of RATs or a set of RATs.

[0360] In some embodiments, the embodiments of this application can be executed by the AS of the terminal. Specifically, for example, the terminal can receive the first RAT through the AS; or, the AS of the terminal receives the first RAT.

[0361] The services described in this application's embodiments can be voice services, video services, computing power services, V2X services, AI services, ISAC services, etc. The service described in this application's embodiments can also be a specific app, such as an app providing voice services (e.g., a voice app or a WeChat app), an app providing V2X services (e.g., a V2X app), etc. The app described in this application's embodiments can be a specific app or a type of app. When it is a type of app, the type can be a game, a chat app, a shopping app, etc.

[0362] In the embodiments of this application, the satellite access technology or type of each orbit can be identified by RAT; or, the orbit of the satellite can be determined by RAT; wherein, the orbit includes, but is not limited to, at least one of the following: LEO, MEO, GEO, OTHERSAT, such as an airborne relay platform, such as communication equipment carried on a hot air balloon or drone.

[0363] In some embodiments, the RAT includes, but is not limited to, at least one of the following:

[0364] WB-E-UTRAN(LEO);

[0365] WB-E-UTRAN(MEO);

[0366] WB-E-UTRAN(GEO);

[0367] WB-E-UTRAN(OTHERSAT);

[0368] NB-IoT (LEO);

[0369] NB-IoT (MEO);

[0370] NB-IoT (GEO);

[0371] NB-IoT (OTHERSAT);

[0372] LTE-M (LEO);

[0373] LTE-M (MEO);

[0374] LTE-M (GEO);

[0375] LTE-M (OTHERSAT);

[0376] NR(LEO);

[0377] NR(MEO);

[0378] NR(GEO);

[0379] NR (OTHERSAT);

[0380] WB-E-UTRAN;

[0381] NB-IoT;

[0382] LTE-M;

[0383] NR.

[0384] In some embodiments, the wireless communication method 300 further includes:

[0385] The terminal receives the first instruction information;

[0386] Wherein, the first indication information is used to indicate the forced selection of a RAT contained in the first RAT, or the first indication information is used to indicate a preference for selecting a RAT contained in the first RAT.

[0387] In this embodiment, the terminal (such as the AS layer of the terminal) receives the first RAT and the first indication information, so that the terminal (such as the AS layer of the terminal) can select the target cell corresponding to the first service based on the first RAT and the first indication information. When selecting the target cell corresponding to the first service based on the first RAT and the first indication information, the RAT of the selected target cell is the RAT in the first RAT, which can ensure the normal transmission of the first service and improve satellite communication performance and user experience.

[0388] In some embodiments, the first RAT and the first indication information may be carried in the same signaling; or, the first RAT and the first indication information may be carried in different signaling, for example, the terminal sends the first RAT first, and then sends the first indication information.

[0389] In some embodiments, the above-mentioned S320 may specifically include:

[0390] The terminal selects the target cell based on the first RAT and the first indication information.

[0391] In some embodiments, the terminal selects the target cell based on the first RAT and the first indication information, including at least one of the following:

[0392] If the first indication information is used to indicate the forced selection of a RAT contained in the first RAT, or the first indication information is used to indicate a preference for selecting a RAT contained in the first RAT, and the RAT of the cell searched by the terminal matches the RAT in the first RAT, the terminal will determine the searched cell as the target cell.

[0393] If the first indication information is used to indicate the forced selection of a RAT included in the first RAT, and the RAT of the cell searched by the terminal does not match any of the RATs in the first RAT, the terminal sends a second message, wherein the second message is used to indicate that the RAT selection failed.

[0394] If the first indication information is used to indicate a preference for selecting a RAT included in the first RAT, and the RAT of the cell searched by the terminal does not match any of the RATs in the first RAT, the terminal sends third information, wherein the third information includes the RAT of the currently camped cell, or the third information includes the RAT of the cell camped after cell reselection.

[0395] In this embodiment, if the first indication information is used to indicate the forced selection of a RAT contained in the first RAT, or if the first indication information is used to indicate a preference for selecting a RAT contained in the first RAT, and the RAT of the cell searched by the terminal matches the RAT in the first RAT, the terminal will determine the searched cell as the target cell, thereby ensuring the normal transmission of the first service and improving satellite communication performance and user experience.

[0396] In some implementations, the AS of the terminal sends the second information to the NAS of the terminal.

[0397] In this embodiment, if the first indication information is used to indicate the forced selection of a RAT included in the first RAT, and the RAT of the cell searched by the terminal does not match any of the RATs in the first RAT, the terminal's AS sends second information to the terminal's NAS, wherein the second information is used to indicate that the RAT selection has failed. Thus, the terminal's NAS can learn that the RAT selection has failed, and consequently, the terminal's NAS can determine that the first service cannot be transmitted.

[0398] In some implementations, the AS of the terminal sends the third information to the NAS of the terminal.

[0399] In this embodiment, if the first indication information is used to indicate a preference for selecting a RAT included in the first RAT, and the RAT of the cell searched by the terminal does not match any of the RATs in the first RAT, the terminal's AS sends third information to the terminal's NAS. The third information includes the RAT of the currently camped cell, or the RAT of the cell after cell reselection. Thus, the terminal's NAS can obtain the RAT of the currently camped cell or the RAT of the cell after cell reselection, and the terminal can then perform the transmission of the first service based on the RAT indicated in the third information.

[0400] In some embodiments, after successfully selecting the target cell, the wireless communication method 300 further includes:

[0401] The terminal sends a fourth piece of information, wherein the fourth piece of information includes the RAT of the target cell.

[0402] In some implementations, the AS of the terminal sends the fourth information to the NAS of the terminal.

[0403] In this embodiment, the terminal's AS sends fourth information to the terminal's NAS, wherein the fourth information includes the RAT of the target cell. Thus, the terminal's NAS can obtain the RAT of the target cell, and the terminal can then perform the transmission of the first service based on the RAT indicated in the fourth information.

[0404] The AS-side embodiment of the terminal of this application has been described in detail above with reference to Figure 3. The NAS-side embodiment of the terminal of this application has been described in detail below with reference to Figure 4. It should be understood that the NAS-side embodiment of the terminal corresponds to the AS-side embodiment of the terminal, and similar descriptions can be referred to the AS-side embodiment of the terminal.

[0405] Figure 4 is a schematic flowchart of a wireless communication method 400 according to an embodiment of this application. As shown in Figure 4, the wireless communication method 400 may include at least some of the following:

[0406] S410, the terminal receives second information, wherein the second information is used to indicate that RAT selection failed;

[0407] S420, the terminal sends fifth information according to the second information, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted.

[0408] It should be understood that Figure 4 illustrates the steps or operations of the wireless communication method 400, but these steps or operations are merely examples, and other operations or variations of the operations shown in Figure 4 may also be performed in this application.

[0409] The embodiments of this application can be executed by the NAS of the terminal. Specifically, for example, the terminal can receive second information from the AS of the terminal through the NAS, and the terminal can send fifth information to the application layer of the terminal through the NAS; or, the terminal's NAS can receive second information from the AS of the terminal, and the terminal's NAS can send fifth information to the application layer of the terminal.

[0410] In this embodiment, the terminal's NAS receives second information from the terminal's AS, wherein the second information indicates that RAT selection has failed; and the terminal's NAS sends fifth information to the terminal's application layer based on the second information, wherein the fifth information indicates that the first service does not match the RAT, or that the first service cannot be transmitted. Thus, the terminal's application layer can know that the first service does not match the RAT or that the first service cannot be transmitted, and the terminal's application layer can suspend the transmission of the first service or shut down the first service.

[0411] The NAS-side embodiment of the terminal of this application has been described in detail above with reference to Figure 4. The application-side embodiment of the terminal of this application has been described in detail below with reference to Figure 5. It should be understood that the application-side embodiment of the terminal corresponds to the NAS-side embodiment of the terminal, and similar descriptions can be referred to the NAS-side embodiment of the terminal.

[0412] Figure 5 is a schematic flowchart of a wireless communication method 500 according to an embodiment of this application. As shown in Figure 5, the wireless communication method 500 may include at least some of the following:

[0413] S510, the terminal receives the fifth information, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted;

[0414] S520, the terminal, based on the fifth information, suspends the transmission of the first service or shuts down the first service.

[0415] It should be understood that Figure 5 illustrates the steps or operations of the wireless communication method 500, but these steps or operations are merely examples, and other operations or variations of the operations shown in Figure 5 may also be performed in this application.

[0416] The embodiments of this application can be executed by the application layer of the terminal. Specifically, for example, the terminal can receive fifth information from the terminal's NAS through the application layer, and the terminal can suspend the transmission of the first service or shut down the first service based on the fifth information; or, the terminal's application layer can receive fifth information from the terminal's NAS, and the terminal's application layer can suspend the transmission of the first service or shut down the first service based on the fifth information.

[0417] In this embodiment of the application, the application layer of the terminal receives fifth information from the NAS of the terminal, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted; and the application layer of the terminal suspends the transmission of the first service or shuts down the first service according to the fifth information.

[0418] The AS-side embodiment of the terminal of this application has been described in detail above with reference to Figure 3. The NAS-side embodiment of the terminal of this application has been described in detail below with reference to Figure 6. It should be understood that the NAS-side embodiment of the terminal corresponds to the AS-side embodiment of the terminal, and similar descriptions can be referred to the AS-side embodiment of the terminal.

[0419] Figure 6 is a schematic flowchart of a wireless communication method 600 according to an embodiment of this application. As shown in Figure 6, the wireless communication method 600 may include at least some of the following:

[0420] S610, the terminal receives third information or fourth information, wherein the third information includes the RAT of the currently camped cell, or the third information includes the RAT of the cell to be camped after cell reselection, and the fourth information includes the RAT of the target cell.

[0421] S620, the terminal records the current RAT, the current RAT being the RAT contained in the third information, or the current RAT being the RAT contained in the fourth information.

[0422] It should be understood that Figure 6 illustrates the steps or operations of the wireless communication method 600, but these steps or operations are merely examples, and other operations or variations of the operations shown in Figure 6 may also be performed in this application.

[0423] The embodiments of this application can be executed by the NAS of the terminal. Specifically, for example, the terminal can receive third or fourth information from the AS of the terminal through the NAS, and the terminal can record the current RAT through the NAS; or, the terminal's NAS can receive third or fourth information from the AS of the terminal, and the terminal's NAS can record the current RAT.

[0424] In this embodiment of the application, the NAS of the terminal receives third information or fourth information from the AS of the terminal, wherein the third information includes the RAT of the currently camped cell, or the third information includes the RAT of the cell to be camped after cell reselection, and the fourth information includes the RAT of the target cell; and the NAS of the terminal records the current RAT, the current RAT being the RAT contained in the third information, or the current RAT being the RAT contained in the fourth information.

[0425] Figure 7 is a schematic flowchart of a wireless communication method 700 according to an embodiment of this application. As shown in Figure 7, the wireless communication method 700 may include at least some of the following:

[0426] S710, if the first condition is met, the terminal sends the second RAT associated with the second service;

[0427] The first condition includes at least one of the following:

[0428] The RAT of the cell where the terminal is currently camped or selected is the RAT associated with the first service;

[0429] The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the second service;

[0430] One or more RATs corresponding to the first association relationship of the second service do not include the RAT of the currently camped cell;

[0431] The first association relationship is the association relationship between business information and one or more RATs.

[0432] It should be understood that Figure 7 illustrates the steps or operations of the wireless communication method 700, but these steps or operations are merely examples, and other operations or variations of the operations shown in Figure 7 may also be performed in this application.

[0433] In this embodiment of the application, when the first condition is met, the terminal sends the second RAT associated with the second service, thereby selecting the target cell corresponding to the second service based on the second RAT associated with the second service. The RAT of the target cell corresponding to the second service is the RAT associated with the second service. Since the RAT and cell are determined by the RAT associated with the service, it can be ensured that the selected RAT and target cell meet the RAT and access cell required by the second service, which can ensure that the second service can be transmitted normally and meet the service experience, thereby improving satellite communication performance and user experience.

[0434] In this embodiment of the application, the second RAT includes one or more RATs.

[0435] The second RAT described in the embodiments of this application can be understood as a list of RATs or a set of RATs.

[0436] In this application embodiment, the second service may be associated with multiple RATs (determined based on the first association relationship). One cell is associated with one RAT. After determining the RAT, the cell corresponding to the RAT is selected to execute the second service.

[0437] The embodiments of this application can be executed by the NAS of the terminal. Specifically, for example, the terminal can send the second RAT associated with the second service through the NAS; or, the NAS of the terminal can send the second RAT associated with the second service.

[0438] In some embodiments, the wireless communication method 700 further includes:

[0439] The terminal determines the second RAT based on the first association relationship of the second service.

[0440] In some embodiments, the terminal may determine the first association relationship of the second service based on the service information of the second service.

[0441] Optionally, the terminal can determine the first association relationship of the second service based on the service information of the second service and the first information; wherein, the first information includes the first association relationship, which is the association relationship between service information and one or more RATs, and the service information in the first association relationship includes at least the service information of the first service and the service information of the second service.

[0442] In some embodiments, after the application layer of the terminal triggers the launch of the first application and the second application, or after the terminal detects the first application and the second application, the application layer of the terminal provides the service information of the first application and the service information of the second application to the NAS layer of the terminal, so that the NAS layer of the terminal can determine the second RAT associated with the second service.

[0443] In some embodiments, where the business information of the second service matches the business information in the first association relationship, the second RAT includes part or all of the RAT associated with the business information matched in the first association relationship (i.e., the business information that matches the business information of the second service).

[0444] It should be noted that matching the business information of the second business with the business information in the first association relationship can be understood as: the business information of the second business is completely the same as the business information in the first association relationship, or the business information of the second business is at least partially the same as the business information in the first association relationship.

[0445] In some embodiments, the business information includes, but is not limited to, at least one of the following:

[0446] Service description information (such as OSID, OS APP ID, etc.), service IP description information (such as IP address, port number, protocol (TCP or UDP protocol) etc.), service domain description information (such as FQDN), service DNN, service corresponding connectivity capabilities (such as IMS capability, MMS capability, Internet capability, etc.), and service QoS.

[0447] Optionally, the QoS of the service can be used to describe the QoS requirements related to the service, such as latency, reliability, error rate, bit rate, and data rate.

[0448] The services described in this application's embodiments can be voice services, video services, computing power services, V2X services, AI services, ISAC services, etc. The service described in this application's embodiments can also be a specific application (APP), such as an APP providing voice services (e.g., a voice APP or a WeChat APP), an APP providing V2X services (e.g., a V2X APP), etc. The APP described in this application's embodiments can be a specific APP or a type of APP. When it is a type of APP, the type can be game, chat, shopping, etc.

[0449] In the embodiments of this application, the satellite access technology or type of each orbit can be identified by RAT; or, the orbit of the satellite can be determined by RAT; wherein, the orbit includes, but is not limited to, at least one of the following: LEO, MEO, GEO, other satellites (OTHERSAT), such as airborne relay platforms, such as communication equipment carried on hot air balloons or drones.

[0450] In some embodiments, the RAT includes, but is not limited to, at least one of the following:

[0451] WB-E-UTRAN(LEO);

[0452] WB-E-UTRAN(MEO);

[0453] WB-E-UTRAN(GEO);

[0454] WB-E-UTRAN(OTHERSAT);

[0455] NB-IoT (LEO);

[0456] NB-IoT (MEO);

[0457] NB-IoT (GEO);

[0458] NB-IoT (OTHERSAT);

[0459] LTE-M (LEO);

[0460] LTE-M (MEO);

[0461] LTE-M (GEO);

[0462] LTE-M (OTHERSAT);

[0463] NR(LEO);

[0464] NR(MEO);

[0465] NR(GEO);

[0466] NR (OTHERSAT);

[0467] WB-E-UTRAN;

[0468] NB-IoT;

[0469] LTE-M;

[0470] NR.

[0471] In some embodiments, the first information further includes at least one of the following:

[0472] The priority of business information;

[0473] The second instruction information is used to instruct the mandatory execution of RAT selection according to the first association, or to instruct the preference to execute RAT selection according to the first association;

[0474] The priority of the first association.

[0475] It should be noted that the second instruction information can also be referred to as RAT execution instruction or alternative RAT execution instruction.

[0476] In some embodiments, the wireless communication method 700 further includes:

[0477] The terminal initiates connection release;

[0478] The connection includes at least one of the following:

[0479] Radio Resource Control (RRC) connection;

[0480] NAS connection.

[0481] In this embodiment, when the first condition is met, the terminal sends the second RAT associated with the second service. Since the RAT of the cell currently camped or selected by the terminal is the RAT associated with the first service, and the priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the second service, the terminal initiates connection release.

[0482] In some embodiments, the terminal initiates connection release, including:

[0483] The terminal sends an RRC connection release request or a NAS connection release request;

[0484] The NAS connection release request includes at least one of the following:

[0485] Remove the attach request and the registration request.

[0486] Figure 8 is a schematic flowchart of a wireless communication method 800 according to an embodiment of this application. As shown in Figure 8, the wireless communication method 800 may include at least some of the following:

[0487] S810, if the second condition is met, the terminal performs the transmission of the second service;

[0488] The second condition includes at least one of the following:

[0489] The RAT of the cell where the terminal is currently camped or selected is the RAT associated with the first service;

[0490] The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the first service.

[0491] One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell;

[0492] Alternatively, the second condition includes at least one of the following:

[0493] The RAT of the cell where the terminal is currently camped or selected is the RAT associated with the first service;

[0494] The priority of the second service is lower than the priority of the first service, or the priority of the first association of the second service is lower than the priority of the first association of the first service;

[0495] One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell;

[0496] The first association relationship is the association relationship between business information and one or more RATs.

[0497] It should be understood that Figure 8 illustrates the steps or operations of the wireless communication method 800, but these steps or operations are merely examples, and other operations or variations of the operations in Figure 8 may also be performed in this application.

[0498] In this embodiment of the application, when the second condition is met, the terminal performs the transmission of the second service, which can ensure the normal transmission of the second service and improve satellite communication performance and user experience.

[0499] The embodiments of this application can be executed by the NAS of the terminal. Specifically, for example, the terminal can perform the transmission of the second service through the NAS; or, the terminal's NAS can perform the transmission of the second service.

[0500] In some embodiments, the terminal performs the transmission of a second service, including:

[0501] The terminal performs the creation of the PDU session for the second service; or,

[0502] The terminal will match the second service with the already created PDU session.

[0503] In the embodiments of this application, the satellite access technology or type of each orbit can be identified by RAT; or, the orbit of the satellite can be determined by RAT; wherein, the orbit includes, but is not limited to, at least one of the following: LEO, MEO, GEO, other satellites (OTHERSAT), such as airborne relay platforms, such as communication equipment carried on hot air balloons or drones.

[0504] In some embodiments, the RAT includes, but is not limited to, at least one of the following:

[0505] WB-E-UTRAN(LEO);

[0506] WB-E-UTRAN(MEO);

[0507] WB-E-UTRAN(GEO);

[0508] WB-E-UTRAN(OTHERSAT);

[0509] NB-IoT (LEO);

[0510] NB-IoT (MEO);

[0511] NB-IoT (GEO);

[0512] NB-IoT (OTHERSAT);

[0513] LTE-M (LEO);

[0514] LTE-M (MEO);

[0515] LTE-M (GEO);

[0516] LTE-M (OTHERSAT);

[0517] NR(LEO);

[0518] NR(MEO);

[0519] NR(GEO);

[0520] NR (OTHERSAT);

[0521] WB-E-UTRAN;

[0522] NB-IoT;

[0523] LTE-M;

[0524] NR.

[0525] The services described in this application's embodiments can be voice services, video services, computing power services, V2X services, AI services, ISAC services, etc. The service described in this application's embodiments can also be a specific app, such as an app providing voice services (e.g., a voice app or a WeChat app), an app providing V2X services (e.g., a V2X app), etc. The app described in this application's embodiments can be a specific app or a type of app. When it is a type of app, the type can be a game, a chat app, a shopping app, etc.

[0526] The terminal-side embodiments of this application have been described in detail above with reference to Figures 2 to 8. The network-side embodiments of this application have been described in detail below with reference to Figures 9 and 10. It should be understood that the network-side embodiments correspond to the terminal-side embodiments, and similar descriptions can be referred to the terminal-side embodiments.

[0527] Figure 9 is a schematic flowchart of a wireless communication method 900 according to an embodiment of this application. As shown in Figure 9, the wireless communication method 900 may include at least some of the following:

[0528] S910, the first network device sends the first information to the terminal;

[0529] The first information includes a first association relationship, which is the association relationship between business information and one or more RATs.

[0530] It should be understood that Figure 9 illustrates the steps or operations of the wireless communication method 200, but these steps or operations are merely examples, and other operations or variations of the operations in Figure 2 may also be performed in this application.

[0531] In this embodiment, a first network device sends first information to a terminal; wherein the first information includes a first association relationship, which is the association relationship between service information and one or more RATs. This allows the determination of the RAT associated with the detected service. When selecting the target cell corresponding to the detected service, the RAT of the stationary cell or the RAT of the access cell can be changed, or the RAT of the stationary cell or the access cell can remain unchanged. The selected RAT of the target cell corresponding to the detected service is the RAT associated with the detected service, ensuring the normal transmission of the detected service and improving satellite communication performance and user experience.

[0532] In the embodiments of this application, the satellite access technology or type of each orbit can be identified by RAT; or, the orbit of the satellite can be determined by RAT; wherein, the orbit includes, but is not limited to, at least one of the following: LEO, MEO, GEO, other satellites (OTHERSAT), such as airborne relay platforms, such as communication equipment carried on hot air balloons or drones.

[0533] In some embodiments, the RAT includes, but is not limited to, at least one of the following:

[0534] WB-E-UTRAN(LEO);

[0535] WB-E-UTRAN(MEO);

[0536] WB-E-UTRAN(GEO);

[0537] WB-E-UTRAN(OTHERSAT);

[0538] NB-IoT (LEO);

[0539] NB-IoT (MEO);

[0540] NB-IoT (GEO);

[0541] NB-IoT (OTHERSAT);

[0542] LTE-M (LEO);

[0543] LTE-M (MEO);

[0544] LTE-M (GEO);

[0545] LTE-M (OTHERSAT);

[0546] NR(LEO);

[0547] NR(MEO);

[0548] NR(GEO);

[0549] NR (OTHERSAT);

[0550] WB-E-UTRAN;

[0551] NB-IoT;

[0552] LTE-M;

[0553] NR.

[0554] The services described in this application's embodiments can be voice services, video services, computing power services, V2X services, AI services, ISAC services, etc. The service described in this application's embodiments can also be a specific app, such as an app providing voice services (e.g., a voice app or a WeChat app), an app providing V2X services (e.g., a V2X app), etc. The app described in this application's embodiments can be a specific app or a type of app. When it is a type of app, the type can be a game, a chat app, a shopping app, etc.

[0555] In some embodiments, the business information includes, but is not limited to, at least one of the following:

[0556] Service description information (such as OSID, OS APP ID, etc.), service IP description information (such as IP address, port number, protocol (TCP or UDP protocol), service domain description information (such as FQDN), service DNN, service corresponding connectivity capabilities (such as IMS capability, MMS capability, Internet capability, etc.), and service QoS.

[0557] Optionally, the QoS of the service can be used to describe the QoS requirements related to the service, such as latency, reliability, error rate, bit rate, and data rate.

[0558] In some embodiments, the wireless communication method 900 further includes:

[0559] The first network device obtains the sixth piece of information;

[0560] The sixth piece of information includes at least one of the following: first capability information, first contract information;

[0561] The first capability information includes, but is not limited to, at least one of the following:

[0562] The terminal supports multi-satellite communication;

[0563] The terminal supports movement between multiple satellites;

[0564] The terminal supports changes between multiple satellites;

[0565] The terminal supports multi-satellite orbit communication;

[0566] The terminal supports movement between multiple satellite orbits;

[0567] The terminal supports changes between multiple satellite orbits;

[0568] The first contract information includes the contract information for multi-track communication of the terminal in a satellite communication scenario.

[0569] In some embodiments, the above-described S910 may specifically include:

[0570] The first network device sends the first information to the terminal based on the sixth information.

[0571] In some embodiments, the first network device obtains the sixth piece of information, including:

[0572] The first network device receives the sixth information from the second network device.

[0573] Optionally, the first network device can be a PCF or a PCRF. Of course, the first network device can also be other network elements, and this application embodiment is not limited to this.

[0574] Optionally, the second network device can be an AMF or an MME. Of course, the second network device can also be other network elements, and this application embodiment is not limited to this.

[0575] Figure 10 is a schematic flowchart of a wireless communication method 1000 according to an embodiment of this application. As shown in Figure 10, the wireless communication method 1000 may include at least some of the following:

[0576] S1010, the second network device obtains the seventh information; wherein, the seventh information includes at least one of the following: second capability information, second contract information;

[0577] The second capability information includes at least one of the following: the terminal supports multi-satellite communication; the terminal supports movement between multiple satellites; the terminal supports changes between multiple satellites; the terminal supports multi-satellite orbit communication; the terminal supports movement between multiple satellite orbits; the terminal supports changes between multiple satellite orbits; the terminal does not support multi-satellite communication; the terminal does not support movement between multiple satellites; the terminal does not support changes between multiple satellite orbits; the terminal does not support multi-satellite orbit communication; the terminal does not support movement between multiple satellite orbits; the terminal does not support changes between multiple satellite orbits;

[0578] The second contract information includes at least one of the following: the first contract information; in a satellite communication scenario, the terminal does not contain contract information for multi-satellite orbit communication;

[0579] S1020, the second network device sends the sixth information to the first network device according to the seventh information;

[0580] The sixth piece of information includes at least one of the following: first capability information, first contract information;

[0581] The first capability information includes at least one of the following: the terminal supports multi-satellite communication; the terminal supports movement between multiple satellites; the terminal supports changes between multiple satellites; the terminal supports multi-satellite orbit communication; the terminal supports movement between multiple satellite orbits; the terminal supports changes between multiple satellite orbits.

[0582] The first contract information includes: contract information for multi-satellite orbit communication of the terminal in a satellite communication scenario.

[0583] In this embodiment, the second network device sends sixth information to the first network device based on seventh information, thereby enabling the second network device to send first information to the terminal based on the sixth information. The first information includes a first association relationship, which is the association relationship between service information and one or more RATs. This allows the determination of the RAT associated with the detected service. When selecting the target cell corresponding to the detected service, the RAT of the stationary cell or the RAT of the access cell can be changed, or the RAT of the stationary cell or the access cell can remain unchanged. The RAT of the target cell corresponding to the detected service is the RAT associated with the detected service, ensuring the normal transmission of the detected service and improving satellite communication performance and user experience.

[0584] In some embodiments, the second network device sends sixth information to the first network device based on the seventh information, including:

[0585] The second network device sends the sixth information to the first network device if at least one of the following conditions is met:

[0586] The terminal supports multi-satellite communication;

[0587] The terminal supports movement between multiple satellites;

[0588] The terminal supports changes between multiple satellites;

[0589] The terminal supports multi-satellite orbit communication;

[0590] The terminal supports movement between multiple satellite orbits;

[0591] The terminal supports changes between multiple satellite orbits;

[0592] In a satellite communication scenario, the terminal contains subscription information for multi-satellite orbit communication.

[0593] The technical solution of this application is described in detail below through specific embodiments.

[0594] Example 1, taking the following scheme as an example: When the UE is in an idle state and detects the arrival of a first service (e.g., APP#1), the UE's NAS layer indicates the first RAT associated with the first service to the UE's AS layer. The UE's AS layer selects the corresponding RAT and cell based on the first RAT. The first RAT may contain one or more RATs.

[0595] As shown in Figure 11, the specific process may include some or all of the following S1-1 to S1-6.

[0596] S1-1. When the UE is in an idle state, the UE's application layer triggers the start of the first service (APP#1) (or detects APP#1), and the UE's application layer sends the service information of the first service to the UE's NAS layer.

[0597] Optionally, the business information of the first business may include at least one of the following:

[0598] The first service's service description information (such as the first service's OSID, or the first service's APP ID or OS APP ID), the first service's IP description information, the first service's domain description information, the first service's DNN, the first service's corresponding connectivity capabilities, and the first service's QoS.

[0599] Optionally, the QoS of the first service can be used to describe the QoS requirements related to the first service, such as latency, reliability, error rate, bit rate, and data rate.

[0600] Optionally, the satellite access technology or type of each orbit can be identified by the RAT; or, the orbit of the satellite can be determined by the RAT; wherein the orbit includes, but is not limited to, at least one of the following: LEO, MEO, GEO, other satellites (OTHERSAT), such as airborne relay platforms, such as communication equipment carried on hot air balloons or drones.

[0601] In some embodiments, the RAT includes, but is not limited to, at least one of the following:

[0602] WB-E-UTRAN(LEO);

[0603] WB-E-UTRAN(MEO);

[0604] WB-E-UTRAN(GEO);

[0605] WB-E-UTRAN(OTHERSAT);

[0606] NB-IoT (LEO);

[0607] NB-IoT (MEO);

[0608] NB-IoT (GEO);

[0609] NB-IoT (OTHERSAT);

[0610] LTE-M (LEO);

[0611] LTE-M (MEO);

[0612] LTE-M (GEO);

[0613] LTE-M (OTHERSAT);

[0614] NR(LEO);

[0615] NR(MEO);

[0616] NR(GEO);

[0617] NR (OTHERSAT);

[0618] WB-E-UTRAN;

[0619] NB-IoT;

[0620] LTE-M;

[0621] NR.

[0622] S1-2. The UE's NAS receives service information of the first service from the UE's application layer; and the UE determines the first RAT associated with the first service based on the first information. The UE determines whether the first RAT associated with the first service contains the RAT of the currently accessed cell or the RAT of the currently camped cell. If the first RAT associated with the first service contains the RAT of the currently accessed cell or the RAT of the currently camped cell, then the subsequent S1-3 to S1-5 are skipped and not executed, and the PDU session establishment process or PDU session modification process is executed. If the first RAT associated with the first service does not contain the RAT of the currently accessed cell or the RAT of the currently camped cell, then the subsequent S1-3 is executed.

[0623] Optionally, if the NAS layer does not know the RAT of the current cell, then S1-3 is executed directly.

[0624] Optionally, the first information includes a first association relationship, which is an association relationship between business information and one or more RATs, and the business information in the first association relationship includes at least the business information of the first business.

[0625] Optionally, the first information can be pre-configured in the terminal or implemented through network-side configuration.

[0626] S1-3. The NAS layer of the UE determines the first RAT associated with the first service based on the service information and the first association relationship of the first service, and sends the first RAT associated with the first service to the AS layer of the UE.

[0627] Optionally, the NAS layer of the UE can also send the first indication information to the AS layer of the UE;

[0628] Wherein, the first indication information is used to indicate the forced selection of a RAT included in the first RAT, or the first indication information is used to indicate a preference for selecting a RAT included in the first RAT.

[0629] S1-4. The UE's AS layer receives the first RAT associated with the first service sent by the NAS layer in S1-3 above. The UE's AS layer selects or reselects the target cell according to the first indication information, including at least one of the following operations:

[0630] a) Select the RAT indicated in the first RAT as the RAT of the target cell;

[0631] i. If the first RAT also contains priorities, the cells corresponding to the RATs are searched in order of priority.

[0632] b) If the first instruction message is also received:

[0633] i. If the first indication information is used to indicate the forced selection of a RAT included in the first RAT, and the AS layer of the UE does not find a cell that meets the requirements after performing a cell search for the first RAT (wherein, not meeting the requirements may mean that no cell corresponding to the frequency point of the first RAT is found, or that a cell corresponding to the first RAT is found but does not meet the S criterion or R criterion), then the first RAT selection is considered to have failed, and S1-5 is executed to notify that the first RAT selection has failed.

[0634] ii. If the first indication information is used to indicate a preference for selecting a RAT included in the first RAT, and the UE's AS layer does not find a cell that meets the criteria after performing a cell search for the first RAT (wherein, not meeting the criteria may mean that no cell corresponding to the frequency point of the first RAT is found, or that a cell corresponding to the first RAT is found but does not meet the S criterion or R criterion), then the first RAT selection is considered to have failed, and the S criterion or R criterion is still used to perform cell selection or reselection, and S1-5 is executed to notify the selected RAT.

[0635] S1-5. The UE's AS layer sends the selected RAT result to the UE's NAS layer, including at least one of the following:

[0636] a) RAT, the currently selected RAT;

[0637] b) First RAT selection failed.

[0638] S1-6. If the NAS layer of the UE receives feedback from the AS layer of the UE that the first RAT selection failed, and the first RAT selection is mandatory, then the UE's application layer is notified that the first service cannot be executed. The reason for the inability to execute may be that the service does not match the current RAT.

[0639] Example 2, taking the following scheme as an example: When the UE is in an idle state, when the first service (APP#1) and the second service (APP#2) arrive at the same time, the UE's NAS layer compares the priority of the first association relationship of the first service (APP#1) and the priority of the first association relationship of the second service (APP#2), and determines the candidate RAT to the AS layer according to the priority.

[0640] As shown in Figure 12, the specific process may include some or all of the following S2-1 to S2-9.

[0641] S2-1. The UE's application layer (App layer) initiates the first service (App#1) and the second service (App#2), and provides the NAS layer with the service information of the first service and the service information of the second service.

[0642] Optionally, the business information of the first business may include at least one of the following:

[0643] The first service's service description information (such as the first service's OSID, or the first service's APP ID or OS APP ID), the first service's IP description information, the first service's domain description information, the first service's DNN, the first service's corresponding connectivity capabilities, and the first service's QoS.

[0644] Optionally, the QoS of the first service can be used to describe the QoS requirements related to the first service, such as latency, reliability, error rate, bit rate, and data rate.

[0645] Optionally, the business information for the second business may include at least one of the following:

[0646] The service description information of the second service (such as the OSID of the second service, or the APP ID of the second service or the OS APP ID), the IP description information of the second service, the domain description information of the second service, the DNN of the second service, the connection capability corresponding to the second service, and the QoS of the second service.

[0647] Optionally, the QoS of the second service can be used to describe the QoS requirements related to the second service, such as latency, reliability, error rate, bit rate, and data rate.

[0648] Optionally, the satellite access technology or type of each orbit can be identified by the RAT; or, the orbit of the satellite can be determined by the RAT; wherein the orbit includes, but is not limited to, at least one of the following: LEO, MEO, GEO, other satellites (OTHERSAT), such as airborne relay platforms, such as communication equipment carried on hot air balloons or drones.

[0649] In some embodiments, the RAT includes, but is not limited to, at least one of the following:

[0650] WB-E-UTRAN(LEO);

[0651] WB-E-UTRAN(MEO);

[0652] WB-E-UTRAN(GEO);

[0653] WB-E-UTRAN(OTHERSAT);

[0654] NB-IoT (LEO);

[0655] NB-IoT (MEO);

[0656] NB-IoT (GEO);

[0657] NB-IoT (OTHERSAT);

[0658] LTE-M (LEO);

[0659] LTE-M (MEO);

[0660] LTE-M (GEO);

[0661] LTE-M (OTHERSAT);

[0662] NR(LEO);

[0663] NR(MEO);

[0664] NR(GEO);

[0665] NR (OTHERSAT);

[0666] WB-E-UTRAN;

[0667] NB-IoT;

[0668] LTE-M;

[0669] NR.

[0670] S2-2. After the NAS layer of the UE receives the service information of the first service and the service information of the second service sent by the application layer of the UE, it compares the priority of the first association relationship matching the first service and the priority of the first association relationship of the second service.

[0671] S2-3. Taking the example that the priority of the first association of the first service is higher than the priority of the first association of the second service, then the NAS layer of the UE indicates the first RAT of the first service association to the AS layer of the UE.

[0672] However, it should be noted that if the first RAT associated with the first service contains the RAT of the cell where the current UE is camped, then S2-7 is executed directly to determine whether the second RAT associated with the second service contains the RAT of the cell where the current UE is camped.

[0673] S2-4. The UE's AS layer receives the first RAT associated with the first service sent by the NAS layer in S2-3 above. The UE's AS layer selects or reselects the target cell according to the first indication information, including at least one of the following operations:

[0674] a) Select the RAT indicated in the first RAT as the RAT of the target cell;

[0675] i. If the first RAT also contains priorities, the cells corresponding to the RATs are searched in order of priority.

[0676] b) If the first instruction message is also received:

[0677] i. If the first indication information is used to indicate the forced selection of a RAT included in the first RAT, and the UE's AS layer does not find a cell that meets the requirements after performing a cell search for the first RAT (wherein, not meeting the requirements may mean that no cell corresponding to the frequency point of the first RAT is found, or that a cell corresponding to the first RAT is found but does not meet the S criterion or R criterion), then the first RAT selection is considered to have failed, and S2-5 is executed to notify that the first RAT selection has failed.

[0678] ii. If the first indication information is used to indicate a preference for selecting a RAT included in the first RAT, and the UE's AS layer does not find a cell that meets the criteria after performing a cell search for the first RAT (wherein, not meeting the criteria may mean that no cell corresponding to the frequency point of the first RAT is found, or that a cell corresponding to the first RAT is found but does not meet the S criterion or R criterion), then the first RAT selection is considered to have failed. Then, the S criterion or R criterion is still used to perform cell selection or reselection, and S2-5 is executed to notify the selected RAT.

[0679] S2-5. The UE's AS layer sends the selected RAT result to the UE's NAS layer, including at least one of the following:

[0680] a) RAT, the currently selected RAT;

[0681] b) First RAT selection failed.

[0682] S2-6. If the NAS layer of the UE receives feedback from the AS layer of the UE that the first RAT selection failed, and the first RAT selection is mandatory, then the UE's application layer is notified that the first service cannot be executed. The reason for the inability to execute may be that the service does not match the current RAT.

[0683] S2-7. Further, the UE's NAS layer determines whether the second RAT associated with the second service includes the RAT of the cell currently camped (i.e., after executing S2-6, the UE's AS layer selects the RAT of the cell associated with the first RAT of the first service).

[0684] The second RAT contains one or more RATs.

[0685] S2-8. Based on the judgment in S2-7, determine whether the second RAT associated with the second service includes the RAT of the currently residing cell.

[0686] a. If the second RAT associated with the second service contains the RAT of the currently camped cell, then continue to execute the subsequent operations of the second service, such as URSP matching of the second service, establishment or modification of the corresponding PDU session, etc.

[0687] b. If the second RAT associated with the second service does not contain the RAT of the currently camped cell, then the UE's NAS layer notifies the application layer that the second service cannot be executed. The reason for the inability to execute may be that the service does not match the current RAT.

[0688] S2-9. The NAS layer of the UE notifies the application layer that the second service cannot be executed. The reason for the inability to execute may be that the service does not match the current RAT.

[0689] Example 3, taking the following scheme as an example: The UE is in the connected state and is currently performing the first service (such as APP#1). When the second service (such as app#2) arrives, the UE's NAS layer determines whether to (trigger) cell reselection.

[0690] As shown in Figure 13, the specific process may include some or all of the following S3-0 to S3-8.

[0691] S3-0. The UE is currently camped on or accessing the cell of the first RAT associated with the first service (APP#1). The first RAT includes one or more RATs.

[0692] Optionally, the satellite access technology or type of each orbit can be identified by the RAT; or, the orbit of the satellite can be determined by the RAT; wherein the orbit includes, but is not limited to, at least one of the following: LEO, MEO, GEO, other satellites (OTHERSAT), such as airborne relay platforms, such as communication equipment carried on hot air balloons or drones.

[0693] In some embodiments, the RAT includes, but is not limited to, at least one of the following:

[0694] WB-E-UTRAN(LEO);

[0695] WB-E-UTRAN(MEO);

[0696] WB-E-UTRAN(GEO);

[0697] WB-E-UTRAN(OTHERSAT);

[0698] NB-IoT (LEO);

[0699] NB-IoT (MEO);

[0700] NB-IoT (GEO);

[0701] NB-IoT (OTHERSAT);

[0702] LTE-M (LEO);

[0703] LTE-M (MEO);

[0704] LTE-M (GEO);

[0705] LTE-M (OTHERSAT);

[0706] NR(LEO);

[0707] NR(MEO);

[0708] NR(GEO);

[0709] NR (OTHERSAT);

[0710] WB-E-UTRAN;

[0711] NB-IoT;

[0712] LTE-M;

[0713] NR.

[0714] S3-1. The NAS layer of the UE detects the start of the second service, that is, the application layer of the UE sends the service information of the second service to the NAS layer.

[0715] The business information of the second business may include at least one of the following:

[0716] The service description information of the second service (such as the OSID of the second service, or the APP ID of the second service or the OS APP ID), the IP description information of the second service, the domain description information of the second service, the DNN of the second service, the connection capability corresponding to the second service, and the QoS of the second service.

[0717] Optionally, the QoS of the second service can be used to describe the QoS requirements related to the second service, such as latency, reliability, error rate, bit rate, and data rate.

[0718] S3-2. The NAS layer of the UE compares the priority of the first association of the first service and the priority of the first association of the second service.

[0719] One implementation method is to execute S3-3 to S3-5 when the priority of the first association of the first business matching is higher than the priority of the first association of the second business.

[0720] S3-3. The NAS layer of the UE further determines whether the second RAT associated with the second service includes the RAT of the currently camped cell (i.e., the current RAT of the first service).

[0721] S3-4. If the second RAT associated with the second service contains the RAT of the currently camped cell, the second service will continue to use the RAT of the currently camped cell to perform subsequent operations, such as session establishment or modification.

[0722] S3-5. If the second RAT associated with the second service does not contain the RAT of the currently camped cell, the UE's NAS layer notifies the UE's application layer that the second service cannot be executed. The reason for the inability to execute may be that the service does not match the current RAT.

[0723] One implementation method is to execute S3-6 to S3-8 when the priority of the first association of the first service is lower than the priority of the first association of the second service.

[0724] S3-6. The UE's NAS layer further determines whether the second RAT associated with the second service includes the RAT of the currently camped cell (i.e., the current RAT of the first service).

[0725] S3-7. If the second RAT associated with the second service contains the RAT of the currently camped cell, the second service will continue to use the RAT of the currently camped cell to perform subsequent operations, such as session establishment or modification.

[0726] S3-8. If the second RAT associated with the second service does not contain the RAT of the currently camped cell, the NAS layer of the UE sends the second RAT associated with the second service to the AS layer, instructing the AS layer to reselect the cell according to the second RAT. The specific operation is as described in S1-6 of Example 1.

[0727] Example 4, taking the following scheme as an example: The UE obtains first information from the network side, wherein the first information includes a first association relationship, which is the association relationship between service information and one or more RATs.

[0728] As shown in Figure 14, the specific process may include some or all of the following S4-1 to S4-6.

[0729] S4-1. The UE sends a registration request to the AMF, the registration request carrying multi-track communication capabilities (multi-track communication, such as GEO, MEO, LEO or other air communication platforms).

[0730] Optional, multi-track communication capabilities include at least one of the following:

[0731] UE supports multi-satellite communication;

[0732] UE supports inter-satellite movement;

[0733] UE supports changes between multiple satellites;

[0734] UE supports multi-satellite orbit communication;

[0735] UE supports movement between multiple satellite orbits;

[0736] UE supports changes between multiple satellite orbits.

[0737] S4-2.AMF obtains the UE's subscription from UDM, the UE's subscription including a multi-track communication subscription, the multi-track communication subscription indicating that the UE has subscribed to multi-track communication.

[0738] S4-3.AMF sends a registration acceptance message to the UE.

[0739] S4-4. The AMF establishes a UE policy association with the PCF, including the AMF sending an Npcf_UEPolicyControl Update Request to the PCF, wherein the Npcf_UEPolicyControl Update Request carries at least one of the following:

[0740] a) UE multi-track communication capability;

[0741] b) UE multi-track communication contract.

[0742] S4-5.PCF sends a response to AMF.

[0743] S4-6. PCF generates UE policy based on UE's multi-track communication capability and / or multi-track communication subscription. The UE policy contains first information, which includes a first association relationship. The first association relationship is the association relationship between service information and one or more RATs. PCF sends the UE policy to UE.

[0744] 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 the wireless communication method to illustrate the wireless communication device provided in this application.

[0745] 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.

[0746] 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.

[0747] Referring to Figure 15, when the wireless communication device is a terminal or a component within a terminal, the wireless communication device 1100 includes:

[0748] Processing module 1101 is used to determine the first radio access technology (RAT) associated with the first service based on the first information;

[0749] The first information includes a first association relationship, which is an association relationship between business information and one or more RATs. The business information in the first association relationship includes at least the business information of the first business.

[0750] The first RAT contains one or more RATs.

[0751] In some embodiments, where the service information of the first service matches the service information in the first association relationship, the first RAT includes part or all of the RAT associated with the service information matched in the first association relationship.

[0752] In some embodiments, the business information includes at least one of the following:

[0753] Service description information, service's Internet IP description information, service's domain description information, service's data network name (DNN), service's corresponding connectivity capabilities, and service's quality of service (QoS).

[0754] In some embodiments, the RAT includes at least one of the following:

[0755] WB-E-UTRAN(LEO);

[0756] WB-E-UTRAN(MEO);

[0757] WB-E-UTRAN(GEO);

[0758] WB-E-UTRAN(OTHERSAT);

[0759] NB-IoT (LEO);

[0760] NB-IoT (MEO);

[0761] NB-IoT (GEO);

[0762] NB-IoT (OTHERSAT);

[0763] LTE-M (LEO);

[0764] LTE-M (MEO);

[0765] LTE-M (GEO);

[0766] LTE-M (OTHERSAT);

[0767] NR(LEO);

[0768] NR(MEO);

[0769] NR(GEO);

[0770] NR (OTHERSAT);

[0771] WB-E-UTRAN;

[0772] NB-IoT;

[0773] LTE-M;

[0774] NR.

[0775] In some embodiments, the processing module 1101 is further configured to determine the first service based on at least one of the following:

[0776] If the wireless communication device 1100 detects only one service, the detected service is identified as the first service;

[0777] If the wireless communication device 1100 detects at least two services, it determines the service with the highest priority among the at least two services as the first service.

[0778] If the wireless communication device 1100 detects at least two services, it determines the service with the highest QoS requirement among the at least two services as the first service.

[0779] If the wireless communication device 1100 detects at least two services, it determines the service with the highest priority in the first association relationship among the at least two services as the first service.

[0780] In some embodiments, the first information further includes at least one of the following:

[0781] The priority of business information;

[0782] The second instruction information is used to instruct the mandatory execution of RAT selection according to the first association, or to instruct the preference to execute RAT selection according to the first association;

[0783] The priority of the first association.

[0784] In some embodiments, the wireless communication device 1100 further includes:

[0785] The sending module 1102 is used to send the first RAT.

[0786] In some embodiments, the sending module 1102 is specifically used for:

[0787] If the first RAT does not contain the RAT of the currently camped cell, the first RAT is sent.

[0788] In some embodiments, the sending module 1102 is further configured to send first indication information;

[0789] Wherein, the first indication information is used to indicate the forced selection of a RAT contained in the first RAT, or the first indication information is used to indicate a preference for selecting a RAT contained in the first RAT.

[0790] In some embodiments, the first indication information is determined based on the second indication information in the first information;

[0791] The second instruction information is used to instruct the mandatory execution of RAT selection according to the first association, or the second instruction information is used to instruct the tendency to execute RAT selection according to the first association.

[0792] In some embodiments, where the first RAT includes the RAT of the currently camped cell, the sending module 1102 is further configured to use the currently camped cell to transmit the first service.

[0793] In some embodiments, the wireless communication device 1100 further includes a receiving module 1103;

[0794] The processing module 1101 or the receiving module 1103 is used to obtain the first information from the local machine; or...

[0795] The receiving module 1103 is used to receive the first information from the first network device.

[0796] In some embodiments, the sending module 1102 is further configured to send second capability information;

[0797] The second capability information includes at least one of the following:

[0798] The wireless communication device 1100 supports multi-satellite communication;

[0799] The wireless communication device 1100 supports inter-satellite movement;

[0800] The wireless communication device 1100 supports changes between multiple satellites;

[0801] The wireless communication device 1100 supports multi-satellite orbit communication;

[0802] The wireless communication device 1100 supports movement between multiple satellite orbits;

[0803] The wireless communication device 1100 supports changes between multiple satellite orbits;

[0804] The wireless communication device 1100 does not support multi-satellite communication;

[0805] The wireless communication device 1100 does not support inter-satellite movement;

[0806] The wireless communication device 1100 does not support changes between multiple satellites;

[0807] The wireless communication device 1100 does not support multi-satellite orbit communication;

[0808] The wireless communication device 1100 does not support movement between multiple satellite orbits;

[0809] The wireless communication device 1100 does not support changes between multiple satellite orbits.

[0810] Therefore, in this embodiment, the terminal can determine the first RAT associated with the first service based on the service information of the first service. Then, based on the first RAT associated with the first service, the terminal can select the target cell corresponding to the first service. The RAT of the target cell corresponding to the first service is the RAT associated with the first service. Since the RAT and cell are determined by the RAT associated with the service, it can be ensured that the selected RAT and target cell meet the RAT and access cell required by the first service. This can ensure that the first service can be transmitted normally and meet the service experience, thereby improving satellite communication performance and user experience.

[0811] Referring to Figure 16, when the wireless communication device is a terminal or a component within a terminal, the wireless communication device 1200 includes:

[0812] The receiving module 1201 is used to receive a first radio access technology (RAT), wherein the first RAT includes one or more RATs;

[0813] Processing module 1202 is configured to select a target cell based on the first RAT, wherein the RAT of the target cell is the RAT included in the first RAT.

[0814] In some embodiments, the receiving module 1201 is further configured to receive first indication information; wherein the first indication information is configured to indicate mandatory selection of a RAT included in the first RAT, or the first indication information is configured to indicate a preference for selecting a RAT included in the first RAT.

[0815] Specifically, the processing module 1202 is used for:

[0816] The target cell is selected based on the first RAT and the first indication information.

[0817] In some embodiments, the wireless communication device 1200 further includes a transmitting module 1203;

[0818] Specifically, the processing module 1202 is used to perform at least one of the following:

[0819] If the first indication information is used to indicate the forced selection of a RAT contained in the first RAT, or the first indication information is used to indicate a preference for selecting a RAT contained in the first RAT, and the RAT of the cell searched by the wireless communication device 1200 matches the RAT in the first RAT, the searched cell is determined as the target cell.

[0820] If the first indication information is used to indicate the forced selection of a RAT included in the first RAT, and the RAT of the cell searched by the wireless communication device 1200 does not match any of the RATs in the first RAT, the sending module 1203 is used to send second information, wherein the second information is used to indicate that the RAT selection has failed.

[0821] If the first indication information is used to indicate a preference for selecting a RAT included in the first RAT, and the RAT of the cell searched by the wireless communication device 1200 does not match any of the RATs in the first RAT, the sending module 1203 is used to send third information, wherein the third information includes the RAT of the currently camped cell, or the third information includes the RAT of the cell camped after cell reselection.

[0822] In some embodiments, after successfully selecting the target cell, the sending module 1203 is further configured to send fourth information, wherein the fourth information includes the RAT of the target cell.

[0823] Therefore, in this embodiment, the terminal receives a first RAT (the first RAT associated with the first service), and can select a target cell corresponding to the first service based on the first RAT. The RAT of the target cell corresponding to the first service is the RAT associated with the first service. Since the RAT and cell are determined by the RAT associated with the service, it can be ensured that the selected RAT and target cell meet the RAT and access cell required by the first service, which can ensure that the first service can be transmitted normally and meet the service experience, thereby improving satellite communication performance and user experience.

[0824] Referring to Figure 17, when the wireless communication device is a terminal or a component within a terminal, the wireless communication device 1300 includes:

[0825] The receiving module 1301 is used to receive second information, wherein the second information is used to indicate that the Radio Access Technology (RAT) selection has failed;

[0826] The sending module 1302 is configured to send fifth information according to the second information, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted.

[0827] Therefore, in this embodiment, the terminal's NAS receives second information from the terminal's AS, wherein the second information is used to indicate that RAT selection failed; and the terminal's NAS sends fifth information to the terminal's application layer based on the second information, wherein the fifth information is used to indicate that the first service does not match the RAT, or that the first service cannot be transmitted. Thus, the terminal's application layer can know that the first service does not match the RAT or that the first service cannot be transmitted, and the terminal's application layer can suspend the transmission of the first service or shut down the first service.

[0828] Referring to Figure 18, when the wireless communication device is a terminal or a component within a terminal, the wireless communication device 1400 includes:

[0829] The receiving module 1401 is used to receive fifth information, wherein the fifth information is used to indicate that the first service is not compatible with the Radio Access Technology (RAT), or the fifth information is used to indicate that the first service cannot be transmitted.

[0830] The processing module 1402 is used to suspend the transmission of the first service or shut down the first service based on the fifth information.

[0831] Therefore, in this embodiment of the application, the terminal's application layer receives fifth information from the terminal's NAS, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted; and the terminal's application layer, based on the fifth information, suspends the transmission of the first service, or shuts down the first service.

[0832] Referring to Figure 19, when the wireless communication device is a terminal or a component within a terminal, the wireless communication device 1500 includes:

[0833] The receiving module 1501 is used to receive third information or fourth information, wherein the third information includes the Radio Access Technology (RAT) of the currently camped cell, or the third information includes the RAT of the cell to be camped after cell reselection, and the fourth information includes the RAT of the target cell.

[0834] Processing module 1502 is used to record the current RAT, wherein the current RAT is the RAT contained in the third information, or the current RAT is the RAT contained in the fourth information.

[0835] Therefore, in this embodiment of the application, the NAS of the terminal receives third information or fourth information from the AS of the terminal, wherein the third information includes the RAT of the currently camped cell, or the third information includes the RAT of the cell camped after cell reselection, and the fourth information includes the RAT of the target cell; and the NAS of the terminal records the current RAT, which is the RAT contained in the third information, or the current RAT is the RAT contained in the fourth information.

[0836] Referring to Figure 20, when the wireless communication device is a terminal or a component in a terminal, the wireless communication device 1600 includes: a transmitting module 1601;

[0837] The sending module 1601 is used to send the second radio access technology (RAT) associated with the second service when the first condition is met;

[0838] The first condition includes at least one of the following:

[0839] The RAT of the cell currently camped or selected by the wireless communication device 1600 is the RAT associated with the first service;

[0840] The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the second service;

[0841] One or more RATs corresponding to the first association relationship of the second service do not include the RAT of the currently camped cell;

[0842] The first association relationship is the association relationship between business information and one or more RATs.

[0843] Therefore, in this embodiment of the application, when the first condition is met, the terminal sends the second RAT associated with the second service, thereby selecting the target cell corresponding to the second service based on the second RAT associated with the second service. The RAT of the target cell corresponding to the second service is the RAT associated with the second service. Since the RAT and cell are determined by the RAT associated with the service, it can be ensured that the selected RAT and target cell meet the RAT and access cell required by the second service, which can ensure that the second service can be transmitted normally and meet the service experience, thereby improving satellite communication performance and user experience.

[0844] Referring to Figure 21, when the wireless communication device is a terminal or a component in a terminal, the wireless communication device 1700 includes: a transmitting module 1701 and a receiving module 1702;

[0845] If the second condition is met, the sending module 1701 or the receiving module 1702 is used to perform the transmission of the second service;

[0846] The second condition includes at least one of the following:

[0847] The radio access technology (RAT) of the cell currently camped or selected by the wireless communication device 1700 is the RAT associated with the first service.

[0848] The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the first service.

[0849] One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell;

[0850] Alternatively, the second condition includes at least one of the following:

[0851] The RAT of the cell currently camped or selected by the wireless communication device 1700 is the RAT associated with the first service;

[0852] The priority of the second service is lower than the priority of the first service, or the priority of the first association of the second service is lower than the priority of the first association of the first service;

[0853] One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell;

[0854] The first association relationship is the association relationship between business information and one or more RATs.

[0855] Therefore, in this embodiment of the application, when the second condition is met, the terminal performs the transmission of the second service, which can ensure the normal transmission of the second service and improve satellite communication performance and user experience.

[0856] Referring to Figure 22, when the wireless communication device is a first network device or a component of a first network device, the wireless communication device 1800 includes:

[0857] The sending module 1801 is used to send the first information to the terminal;

[0858] The first information includes a first association relationship, which is the association relationship between business information and one or more RATs.

[0859] In some embodiments, the wireless communication device 1800 further includes:

[0860] Receiver module 1802 is used to acquire the sixth information;

[0861] The sixth piece of information includes at least one of the following: first capability information, first contract information;

[0862] The first capability information includes at least one of the following:

[0863] The terminal supports multi-satellite communication;

[0864] The terminal supports movement between multiple satellites;

[0865] The terminal supports changes between multiple satellites;

[0866] The terminal supports multi-satellite orbit communication;

[0867] The terminal supports movement between multiple satellite orbits;

[0868] The terminal supports changes between multiple satellite orbits;

[0869] The first contract information includes the contract information for multi-track communication of the terminal in a satellite communication scenario;

[0870] Specifically, the sending module 1801 is used for:

[0871] The first information is sent to the terminal according to the sixth information.

[0872] In some embodiments, the receiving module 1802 is specifically used for:

[0873] Receive the sixth information from the second network device.

[0874] Therefore, in this embodiment, the first network device sends first information to the terminal; wherein, the first information includes a first association relationship, which is the association relationship between service information and one or more RATs. This allows the RAT associated with the detected service to be determined. When selecting the target cell corresponding to the detected service, the RAT of the stationary cell or the RAT of the access cell can be changed, or the RAT of the stationary cell or the access cell can remain unchanged. The RAT of the target cell corresponding to the detected service is the RAT associated with the detected service, ensuring the normal transmission of the detected service and improving satellite communication performance and user experience.

[0875] Referring to Figure 23, when the wireless communication device is a second network device or a component of a second network device, the wireless communication device 1900 includes:

[0876] Receiver module 1901 is used to acquire the seventh information;

[0877] The sending module 1902 is used to send the sixth information to the first network device according to the seventh information;

[0878] The sixth piece of information includes at least one of the following: first capability information, first contract information;

[0879] The first capability information includes at least one of the following:

[0880] The terminal supports multi-satellite communication;

[0881] The terminal supports movement between multiple satellites;

[0882] The terminal supports changes between multiple satellites;

[0883] The terminal supports multi-satellite orbit communication;

[0884] The terminal supports movement between multiple satellite orbits;

[0885] The terminal supports changes between multiple satellite orbits;

[0886] The first contract information includes: in a satellite communication scenario, the contract information for multi-satellite orbit communication of the terminal;

[0887] The seventh piece of information includes at least one of the following: second capability information, second contract information;

[0888] The second capability information includes at least one of the following:

[0889] The terminal supports multi-satellite communication;

[0890] The terminal supports movement between multiple satellites;

[0891] The terminal supports changes between multiple satellites;

[0892] The terminal supports multi-satellite orbit communication;

[0893] The terminal supports movement between multiple satellite orbits;

[0894] The terminal supports changes between multiple satellite orbits;

[0895] The terminal does not support multi-satellite communication;

[0896] The terminal does not support movement between multiple satellites;

[0897] The terminal does not support changes between multiple satellites;

[0898] The terminal does not support multi-satellite orbit communication;

[0899] The terminal does not support movement between multiple satellite orbits;

[0900] The terminal does not support changes between multiple satellite orbits;

[0901] The second contract information includes at least one of the following:

[0902] The first contract information;

[0903] In satellite communication scenarios, the terminal does not contain subscription information for multi-satellite orbit communication.

[0904] In some embodiments, the sending module 1902 is specifically used for:

[0905] The sixth message is sent to the first network device if at least one of the following conditions is met:

[0906] The terminal supports multi-satellite communication;

[0907] The terminal supports movement between multiple satellites;

[0908] The terminal supports changes between multiple satellites;

[0909] The terminal supports multi-satellite orbit communication;

[0910] The terminal supports movement between multiple satellite orbits;

[0911] The terminal supports changes between multiple satellite orbits;

[0912] In a satellite communication scenario, the terminal contains subscription information for multi-satellite orbit communication.

[0913] Therefore, in this embodiment, the second network device sends sixth information to the first network device based on seventh information, thereby enabling the second network device to send first information to the terminal based on the sixth information. The first information includes a first association relationship, which is the association relationship between service information and one or more RATs. This allows the determination of the RAT associated with the detected service. When selecting the target cell corresponding to the detected service, the RAT of the stationary cell or the RAT of the access cell can be changed, or the RAT of the stationary cell or the access cell can remain unchanged. The selected RAT of the target cell corresponding to the detected service is the RAT associated with the detected service, ensuring the normal transmission of the detected service and improving satellite communication performance and user experience.

[0914] The wireless communication device provided in this application embodiment can implement the various processes implemented in the method embodiments of Figures 2 to 14 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0915] As shown in Figure 24, this application embodiment also provides a communication device 2000, including a processor 2001 and a memory 2002, wherein the memory 2002 stores a program or instructions that can be run on the processor 2001.

[0916] For example, when the communication device 2000 is a terminal, the program or instruction executed by the processor 2001 implements the various steps executed by the terminal in the above wireless communication method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0917] For example, when the communication device 2000 is a network-side device, the program or instruction executed by the processor 2001 implements the various steps executed by the network-side device in the above wireless communication method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0918] 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 2 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 can be the wireless communication device 1100 shown in Figure 15, or the terminal can be the wireless communication device 1200 shown in Figure 16, the terminal can be the wireless communication device 1300 shown in Figure 17, the terminal can be the wireless communication device 1400 shown in Figure 18, the terminal can be the wireless communication device 1500 shown in Figure 19, the terminal can be the wireless communication device 1600 shown in Figure 20, and the terminal can be the wireless communication device 1700 shown in Figure 21.

[0919] Specifically, Figure 25 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0920] The terminal 2100 includes, but is not limited to, at least some of the following components: radio frequency unit 2101, network module 2102, audio output unit 2103, input unit 2104, sensor 2105, display unit 2106, user input unit 2107, interface unit 2108, memory 2109, and processor 2110.

[0921] Those skilled in the art will understand that terminal 2100 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to processor 2110 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. The terminal structure shown in Figure 25 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.

[0922] It should be understood that, in this embodiment, the input unit 2104 may include a graphics processor 21041 and a microphone 21042. The graphics processor 21041 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 2106 may include a display panel 21061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 2107 includes at least one of a touch panel 21071 and other input devices 21072. The touch panel 21071 is also called a touch screen. The touch panel 21071 may include a touch detection device and a touch controller. Other input devices 21072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0923] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 2101 can transmit it to the processor 2110 for processing; in addition, the radio frequency unit 2101 can send uplink data to the network-side device. Typically, the radio frequency unit 2101 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0924] The memory 2109 can be used to store software programs or instructions, as well as various data. The memory 2109 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 2109 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 2109 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0925] Processor 2110 may include one or more processing units; optionally, processor 2110 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 2110.

[0926] In some embodiments, the processor 2110 is configured to determine a first radio access technology (RAT) associated with a first service based on first information;

[0927] The first information includes a first association relationship, which is an association relationship between business information and one or more RATs. The business information in the first association relationship includes at least the business information of the first business.

[0928] The first RAT contains one or more RATs.

[0929] Therefore, the terminal can determine the first RAT associated with the first service based on the service information of the first service. Then, based on the first RAT associated with the first service, it can select the target cell corresponding to the first service. The RAT of the target cell corresponding to the first service is the RAT associated with the first service. Since the RAT and cell are determined by the RAT associated with the service, it can be ensured that the selected RAT and target cell meet the RAT and access cell required by the first service. This can ensure that the first service can be transmitted normally and meet the service experience, thereby improving satellite communication performance and user experience.

[0930] In some embodiments, the radio frequency unit 2101 is configured to receive a first radio access technology (RAT), wherein the first RAT includes one or more RATs;

[0931] The processor 2110 is configured to select a target cell based on the first RAT, wherein the RAT of the target cell is the RAT included in the first RAT.

[0932] Therefore, the terminal receives the first RAT (the first RAT associated with the first service), and can select the target cell corresponding to the first service based on the first RAT. The RAT of the target cell corresponding to the first service is the RAT associated with the first service. Since the RAT and cell are determined by the RAT associated with the service, it can be ensured that the selected RAT and target cell meet the RAT and access cell required by the first service. This ensures that the first service can be transmitted normally and meets the service experience, thereby improving satellite communication performance and user experience.

[0933] In some embodiments, the radio frequency unit 2101 is configured to receive second information, wherein the second information is configured to indicate that the Radio Access Technology (RAT) selection has failed;

[0934] The radio frequency unit 2101 is further configured to send fifth information according to the second information, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted.

[0935] Therefore, the terminal's NAS receives second information from the terminal's AS, whereby the second information indicates that RAT selection has failed; and the terminal's NAS sends fifth information to the terminal's application layer based on the second information, whereby the fifth information indicates that the first service does not match the RAT, or that the first service cannot be transmitted. Thus, the terminal's application layer can be informed that the first service does not match the RAT or that the first service cannot be transmitted, and the terminal's application layer can suspend the transmission of the first service or shut down the first service.

[0936] In some embodiments, the radio frequency unit 2101 is configured to receive fifth information, wherein the fifth information is configured to indicate that the first service is not compatible with the Radio Access Technology (RAT), or the fifth information is configured to indicate that the first service cannot be transmitted.

[0937] The processor 2110 is used to suspend the transmission of the first service or shut down the first service based on the fifth information.

[0938] Therefore, the terminal's application layer receives the fifth information from the terminal's NAS, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted; and the terminal's application layer, based on the fifth information, suspends the transmission of the first service, or shuts down the first service.

[0939] In some embodiments, the radio frequency unit 2101 is used to receive third information or fourth information, wherein the third information includes the Radio Access Technology (RAT) of the currently camped cell, or the third information includes the RAT of the cell to be camped after cell reselection, and the fourth information includes the RAT of the target cell.

[0940] The processor 2110 is used to record the current RAT, which is either the RAT contained in the third information or the RAT contained in the fourth information.

[0941] Therefore, the NAS of the terminal receives third or fourth information from the AS of the terminal. The third information includes the RAT of the currently camped cell, or the third information includes the RAT of the cell to be camped after cell reselection. The fourth information includes the RAT of the target cell. The NAS of the terminal records the current RAT, which is the RAT contained in the third information, or the current RAT is the RAT contained in the fourth information.

[0942] In some embodiments, when a first condition is met, the radio frequency unit 2101 is used to transmit the second radio access technology (RAT) associated with the second service;

[0943] The first condition includes at least one of the following:

[0944] The RAT of the cell where the terminal is currently camped or selected is the RAT associated with the first service;

[0945] The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the second service;

[0946] One or more RATs corresponding to the first association relationship of the second service do not include the RAT of the currently camped cell;

[0947] The first association relationship is the association relationship between business information and one or more RATs.

[0948] Therefore, when the first condition is met, the terminal sends the second RAT associated with the second service, thereby selecting the target cell corresponding to the second service based on the second RAT associated with the second service. The RAT of the target cell corresponding to the second service is the RAT associated with the second service. Since the RAT and cell are determined by the RAT associated with the service, it can be ensured that the selected RAT and target cell meet the RAT and access cell required by the second service, which can ensure that the second service can be transmitted normally and meet the service experience, thereby improving satellite communication performance and user experience.

[0949] In some embodiments, if a second condition is met, the radio frequency unit 2101 is used to perform the transmission of a second service;

[0950] The second condition includes at least one of the following:

[0951] The radio access technology (RAT) of the cell where the terminal is currently camped or selected is the RAT associated with the first service;

[0952] The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the first service.

[0953] One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell;

[0954] Alternatively, the second condition includes at least one of the following:

[0955] The RAT of the cell where the terminal is currently camped or selected is the RAT associated with the first service;

[0956] The priority of the second service is lower than the priority of the first service, or the priority of the first association of the second service is lower than the priority of the first association of the first service;

[0957] One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell;

[0958] The first association relationship is the association relationship between business information and one or more RATs.

[0959] Therefore, if the second condition is met, the terminal can perform the transmission of the second service, which can ensure the normal transmission of the second service and improve satellite communication performance and user experience.

[0960] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0961] This application also provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG9 or FIG10. This network-side device embodiment corresponds to the above-described 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 effect.

[0962] Specifically, this application embodiment also provides a network-side device, which may be the wireless communication device 1800 shown in FIG22 or the wireless communication device 1900 shown in FIG23.

[0963] As shown in Figure 26, the network-side device 2200 includes: an antenna 221, a radio frequency (RF) device 222, a baseband device 223, a processor 224, and a memory 225. The antenna 221 is connected to the RF device 222. In the uplink direction, the RF device 222 receives information through the antenna 221 and transmits the received information to the baseband device 223 for processing. In the downlink direction, the baseband device 223 processes the information to be transmitted and sends it to the RF device 222. The RF device 222 processes the received information and transmits it through the antenna 221.

[0964] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 223, which includes a baseband processor.

[0965] The baseband device 223 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG22. One of the chips is, for example, a baseband processor, which is connected to the memory 225 via a bus interface to call the program or instructions in the memory 225 to execute the operation of the network-side device shown in the above method embodiment.

[0966] The network-side device may also include a network interface 226, such as a Common Public Radio Interface (CPRI).

[0967] In some embodiments, the radio frequency device 222 is used to send first information to the terminal;

[0968] The first information includes a first association relationship, which is the association relationship between business information and one or more RATs.

[0969] Therefore, the first network device sends first information to the terminal; wherein, the first information includes a first association relationship, which is the association relationship between service information and one or more RATs. This allows the RAT associated with the detected service to be determined. When selecting the target cell corresponding to the detected service, the RAT of the camping cell or the RAT of the access cell can be changed, or the RAT of the camping cell or the access cell can remain unchanged. The RAT of the target cell corresponding to the detected service is the RAT associated with the detected service, ensuring the normal transmission of the detected service and improving satellite communication performance and user experience.

[0970] In some embodiments, the radio frequency device 222 is used to acquire seventh information;

[0971] The radio frequency device 222 is also used to send sixth information to the first network device according to the seventh information;

[0972] The sixth piece of information includes at least one of the following: first capability information, first contract information;

[0973] The first capability information includes at least one of the following:

[0974] The terminal supports multi-satellite communication;

[0975] The terminal supports movement between multiple satellites;

[0976] The terminal supports changes between multiple satellites;

[0977] The terminal supports multi-satellite orbit communication;

[0978] The terminal supports movement between multiple satellite orbits;

[0979] The terminal supports changes between multiple satellite orbits;

[0980] The first contract information includes: in a satellite communication scenario, the contract information for multi-satellite orbit communication of the terminal;

[0981] The seventh piece of information includes at least one of the following: second capability information, second contract information;

[0982] The second capability information includes at least one of the following:

[0983] The terminal supports multi-satellite communication;

[0984] The terminal supports movement between multiple satellites;

[0985] The terminal supports changes between multiple satellites;

[0986] The terminal supports multi-satellite orbit communication;

[0987] The terminal supports movement between multiple satellite orbits;

[0988] The terminal supports changes between multiple satellite orbits;

[0989] The terminal does not support multi-satellite communication;

[0990] The terminal does not support movement between multiple satellites;

[0991] The terminal does not support changes between multiple satellites;

[0992] The terminal does not support multi-satellite orbit communication;

[0993] The terminal does not support movement between multiple satellite orbits;

[0994] The terminal does not support changes between multiple satellite orbits;

[0995] The second contract information includes at least one of the following:

[0996] The first contract information;

[0997] In satellite communication scenarios, the terminal does not contain subscription information for multi-satellite orbit communication.

[0998] Therefore, the second network device sends the sixth information to the first network device based on the seventh information, thereby enabling the second network device to send the first information to the terminal based on the sixth information. The first information includes a first association relationship, which is the association relationship between service information and one or more RATs. This allows the determination of the RAT associated with the detected service. When selecting the target cell corresponding to the detected service, the RAT of the stationary cell or the RAT of the access cell can be changed, or the RAT of the stationary cell or the access cell can remain unchanged. The RAT of the target cell corresponding to the detected service is the RAT associated with the detected service, ensuring the normal transmission of the detected service and improving satellite communication performance and user experience.

[0999] In addition, the network-side device 2200 of this application embodiment also includes: a program or instructions stored in memory 225 and executable on processor 224. The processor 224 calls the program or instructions in memory 225 to execute the methods executed by the modules shown in FIG22 or FIG23 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[1000] Specifically, this application also provides a network-side device. As shown in FIG27, the network-side device 2300 includes a processor 2301, a network interface 2302, and a memory 2303. The network-side device may be the wireless communication device 1800 shown in FIG22 or the wireless communication device 1900 shown in FIG23. The network interface 2302 is, for example, a common public radio interface (CPRI).

[1001] In some embodiments, the network interface 2302 is used to send first information to the terminal;

[1002] The first information includes a first association relationship, which is the association relationship between business information and one or more RATs.

[1003] Therefore, the first network device sends first information to the terminal; wherein, the first information includes a first association relationship, which is the association relationship between service information and one or more RATs. This allows the RAT associated with the detected service to be determined. When selecting the target cell corresponding to the detected service, the RAT of the camping cell or the RAT of the access cell can be changed, or the RAT of the camping cell or the access cell can remain unchanged. The RAT of the target cell corresponding to the detected service is the RAT associated with the detected service, ensuring the normal transmission of the detected service and improving satellite communication performance and user experience.

[1004] In some embodiments, the network interface 2302 is used to acquire seventh information;

[1005] The network interface 2302 is also used to send sixth information to the first network device according to the seventh information;

[1006] The sixth piece of information includes at least one of the following: first capability information, first contract information;

[1007] The first capability information includes at least one of the following:

[1008] The terminal supports multi-satellite communication;

[1009] The terminal supports movement between multiple satellites;

[1010] The terminal supports changes between multiple satellites;

[1011] The terminal supports multi-satellite orbit communication;

[1012] The terminal supports movement between multiple satellite orbits;

[1013] The terminal supports changes between multiple satellite orbits;

[1014] The first contract information includes: in a satellite communication scenario, the contract information for multi-satellite orbit communication of the terminal;

[1015] The seventh piece of information includes at least one of the following: second capability information, second contract information;

[1016] The second capability information includes at least one of the following:

[1017] The terminal supports multi-satellite communication;

[1018] The terminal supports movement between multiple satellites;

[1019] The terminal supports changes between multiple satellites;

[1020] The terminal supports multi-satellite orbit communication;

[1021] The terminal supports movement between multiple satellite orbits;

[1022] The terminal supports changes between multiple satellite orbits;

[1023] The terminal does not support multi-satellite communication;

[1024] The terminal does not support movement between multiple satellites;

[1025] The terminal does not support changes between multiple satellites;

[1026] The terminal does not support multi-satellite orbit communication;

[1027] The terminal does not support movement between multiple satellite orbits;

[1028] The terminal does not support changes between multiple satellite orbits;

[1029] The second contract information includes at least one of the following:

[1030] The first contract information;

[1031] In satellite communication scenarios, the terminal does not contain subscription information for multi-satellite orbit communication.

[1032] Therefore, the second network device sends the sixth information to the first network device based on the seventh information, thereby enabling the second network device to send the first information to the terminal based on the sixth information. The first information includes a first association relationship, which is the association relationship between service information and one or more RATs. This allows the determination of the RAT associated with the detected service. When selecting the target cell corresponding to the detected service, the RAT of the stationary cell or the RAT of the access cell can be changed, or the RAT of the stationary cell or the access cell can remain unchanged. The RAT of the target cell corresponding to the detected service is the RAT associated with the detected service, ensuring the normal transmission of the detected service and improving satellite communication performance and user experience.

[1033] In addition, the network-side device 2300 of this application embodiment also includes: a program or instructions stored in the memory 2303 and executable on the processor 2301. The processor 2301 calls the program or instructions in the memory 2303 to execute the methods executed by the modules shown in FIG22 or FIG23 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[1034] 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.

[1035] 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.

[1036] 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.

[1037] 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.

[1038] 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.

[1039] This application also provides a communication system, including: a terminal and a network-side device. The terminal can be used to perform the steps performed by the terminal in the wireless communication method described above, and the network-side device can be used to perform the steps performed by the network-side device in the wireless communication method described above.

[1040] 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.

[1041] 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.

[1042] 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: Based on the first information, the terminal determines the first radio access technology (RAT) associated with the first service; The first information includes a first association relationship, which is an association relationship between business information and one or more RATs. The business information in the first association relationship includes at least the business information of the first business. The first RAT contains one or more RATs.

2. The method according to claim 1, wherein, When the business information of the first service matches the business information in the first association relationship, the first RAT includes part or all of the RAT associated with the business information matched in the first association relationship.

3. The method of claim 1 or 2, wherein, The business information includes at least one of the following: Service description information, service's Internet IP description information, service's domain description information, service's data network name (DNN), service's corresponding connectivity capabilities, and service's quality of service (QoS).

4. The method according to any one of claims 1 to 3, wherein, The RAT includes at least one of the following: WB-E-UTRAN(LEO); WB-E-UTRAN(MEO); WB-E-UTRAN(GEO); WB-E-UTRAN(OTHERSAT); NB-IoT (LEO); NB-IoT (MEO); NB-IoT (GEO); NB-IoT (OTHERSAT); LTE-M (LEO); LTE-M (MEO); LTE-M (GEO); LTE-M (OTHERSAT); NR(LEO); NR(MEO); NR(GEO); NR (OTHERSAT); WB-E-UTRAN; NB-IoT; LTE-M; NR.

5. The method of any one of claims 1 to 4, wherein, The method further includes: The terminal determines the first service based on at least one of the following: If the terminal detects only one service, the terminal will identify the detected service as the first service; If the terminal detects at least two services, the terminal will identify the service with the highest priority among the at least two services as the first service; If the terminal detects at least two services, the terminal will identify the service with the highest QoS requirement among the at least two services as the first service; If the terminal detects at least two services, the terminal determines the service with the highest priority in the first association relationship among the at least two services as the first service.

6. The method according to any one of claims 1 to 5, wherein, The first information also includes at least one of the following: The priority of business information; The second instruction information is used to instruct the mandatory execution of RAT selection according to the first association, or to instruct the preference to execute RAT selection according to the first association; The priority of the first association.

7. The method of any one of claims 1 to 6, wherein, The method further includes: The terminal sends the first RAT.

8. The method according to claim 7, wherein, The terminal sends the first RAT, including: If the first RAT does not contain the RAT of the currently camped cell, the terminal sends the first RAT.

9. The method of claim 7 or 8, wherein, The method further includes: The terminal sends a first instruction message; Wherein, the first indication information is used to indicate the forced selection of a RAT contained in the first RAT, or the first indication information is used to indicate a preference for selecting a RAT contained in the first RAT.

10. The method according to claim 9, wherein, The first indication information is determined based on the second indication information in the first information; The second instruction information is used to instruct the mandatory execution of RAT selection according to the first association, or the second instruction information is used to instruct the tendency to execute RAT selection according to the first association.

11. The method of any one of claims 1 to 6, wherein, The method further includes: If the first RAT includes the RAT of the currently camped cell, the terminal uses the currently camped cell to transmit the first service.

12. The method of any one of claims 1 to 11, wherein, The method further includes: The terminal obtains the first information from its local storage; or... The terminal receives the first information from the first network device.

13. The method of any one of claims 1 to 12, wherein, The method further includes: The terminal sends second capability information; The second capability information includes at least one of the following: The terminal supports multi-satellite communication; The terminal supports movement between multiple satellites; The terminal supports changes between multiple satellites; The terminal supports multi-satellite orbit communication; The terminal supports movement between multiple satellite orbits; The terminal supports changes between multiple satellite orbits; The terminal does not support multi-satellite communication; The terminal does not support movement between multiple satellites; The terminal does not support changes between multiple satellites; The terminal does not support multi-satellite orbit communication; The terminal does not support movement between multiple satellite orbits; The terminal does not support changes between multiple satellite orbits.

14. A wireless communication method, comprising: The terminal receives a first radio access technology (RAT), wherein the first RAT includes one or more RATs; The terminal selects a target cell based on the first RAT, wherein the RAT of the target cell is the RAT included in the first RAT.

15. The method of claim 14, wherein, The method further includes: The terminal receives first indication information; wherein the first indication information is used to indicate that a RAT included in the first RAT is forcibly selected, or the first indication information is used to indicate that a RAT included in the first RAT is preferred to be selected. Wherein, the terminal selects a target cell based on the first RAT, including: The terminal selects the target cell based on the first RAT and the first indication information.

16. The method of claim 15, wherein, The terminal selects the target cell based on the first RAT and the first indication information, including at least one of the following: If the first indication information is used to indicate the forced selection of a RAT contained in the first RAT, or the first indication information is used to indicate a preference for selecting a RAT contained in the first RAT, and the RAT of the cell searched by the terminal matches the RAT in the first RAT, the terminal will determine the searched cell as the target cell. If the first indication information is used to indicate the forced selection of a RAT included in the first RAT, and the RAT of the cell searched by the terminal does not match any of the RATs in the first RAT, the terminal sends a second message, wherein the second message is used to indicate that the RAT selection failed. If the first indication information is used to indicate a preference for selecting a RAT included in the first RAT, and the RAT of the cell searched by the terminal does not match any of the RATs in the first RAT, the terminal sends third information, wherein the third information includes the RAT of the currently camped cell, or the third information includes the RAT of the cell camped after cell reselection.

17. The method according to any one of claims 14 to 16, wherein, After successfully selecting the target cell, the method further includes: The terminal sends a fourth piece of information, wherein the fourth piece of information includes the RAT of the target cell.

18. A wireless communication method, comprising: The terminal receives second information, wherein the second information is used to indicate that the Radio Access Technology (RAT) selection has failed; The terminal sends fifth information based on the second information, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted.

19. A wireless communication method, comprising: The terminal receives a fifth message, wherein the fifth message is used to indicate that the first service is not compatible with the Radio Access Technology (RAT), or the fifth message is used to indicate that the first service cannot be transmitted; The terminal, based on the fifth information, suspends the transmission of the first service or shuts down the first service.

20. A wireless communication method, comprising: The terminal receives third information or fourth information, wherein the third information includes the Radio Access Technology (RAT) of the currently camped cell, or the third information includes the RAT of the cell to be camped after cell reselection, and the fourth information includes the RAT of the target cell. The terminal records the current RAT, which is either the RAT contained in the third information or the RAT contained in the fourth information.

21. A wireless communication method, comprising: If the first condition is met, the terminal sends the second radio access technology (RAT) associated with the second service; The first condition includes at least one of the following: The RAT of the cell where the terminal is currently camped or selected is the RAT associated with the first service; The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the second service; One or more RATs corresponding to the first association relationship of the second service do not include the RAT of the currently camped cell; The first association relationship is the association relationship between business information and one or more RATs.

22. The method of claim 21, wherein, The method further includes: The terminal determines the second RAT based on the first association relationship of the second service.

23. The method of claim 21 or 22, wherein, The method further includes: The terminal initiates connection release; The connection includes at least one of the following: Radio Resource Control (RRC) connection; Non-access tier NAS connection.

24. The method according to claim 23, wherein, The terminal initiates connection release, including: The terminal sends an RRC connection release request or a NAS connection release request; The NAS connection release request includes at least one of the following: Remove the attach request and the registration request.

25. A wireless communication method, comprising: If the second condition is met, the terminal performs the transmission of the second service; The second condition includes at least one of the following: The radio access technology (RAT) of the cell where the terminal is currently camped or selected is the RAT associated with the first service; The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the first service. One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell; Alternatively, the second condition includes at least one of the following: The RAT of the cell where the terminal is currently camped or selected is the RAT associated with the first service; The priority of the second service is lower than the priority of the first service, or the priority of the first association of the second service is lower than the priority of the first association of the first service; One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell; The first association relationship is the association relationship between business information and one or more RATs.

26. The method of claim 25, wherein, The terminal performs the transmission of the second service, including: The terminal performs the creation of a Protocol Data Unit (PDU) session for the second service; or, The terminal will match the second service with the already created PDU session.

27. A wireless communication method, comprising: The first network device sends the first information to the terminal; The first information includes a first association relationship, which is the association relationship between business information and one or more RATs.

28. The method of claim 27, wherein, The method further includes: The first network device obtains the sixth piece of information; The sixth piece of information includes at least one of the following: first capability information, first contract information; The first capability information includes at least one of the following: The terminal supports multi-satellite communication; The terminal supports movement between multiple satellites; The terminal supports changes between multiple satellites; The terminal supports multi-satellite orbit communication; The terminal supports movement between multiple satellite orbits; The terminal supports changes between multiple satellite orbits; The first contract information includes the contract information for multi-track communication of the terminal in a satellite communication scenario; The first network device sends first information to the terminal, including: The first network device sends the first information to the terminal based on the sixth information.

29. The method according to claim 28, wherein, The first network device obtains the sixth piece of information, including: The first network device receives the sixth information from the second network device.

30. A wireless communication method, comprising: The second network device obtains the seventh information; The second network device sends the sixth information to the first network device based on the seventh information; The sixth piece of information includes at least one of the following: first capability information, first contract information; The first capability information includes at least one of the following: The terminal supports multi-satellite communication; The terminal supports movement between multiple satellites; The terminal supports changes between multiple satellites; The terminal supports multi-satellite orbit communication; The terminal supports movement between multiple satellite orbits; The terminal supports changes between multiple satellite orbits; The first contract information includes: in a satellite communication scenario, the contract information for multi-satellite orbit communication of the terminal; The seventh piece of information includes at least one of the following: second capability information, second contract information; The second capability information includes at least one of the following: The terminal supports multi-satellite communication; The terminal supports movement between multiple satellites; The terminal supports changes between multiple satellites; The terminal supports multi-satellite orbit communication; The terminal supports movement between multiple satellite orbits; The terminal supports changes between multiple satellite orbits; The terminal does not support multi-satellite communication; The terminal does not support movement between multiple satellites; The terminal does not support changes between multiple satellites; The terminal does not support multi-satellite orbit communication; The terminal does not support movement between multiple satellite orbits; The terminal does not support changes between multiple satellite orbits; The second contract information includes at least one of the following: The first contract information; In satellite communication scenarios, the terminal does not contain subscription information for multi-satellite orbit communication.

31. The method according to claim 30, wherein, The second network device sends sixth information to the first network device based on the seventh information, including: The second network device sends the sixth information to the first network device if at least one of the following conditions is met: The terminal supports multi-satellite communication; The terminal supports movement between multiple satellites; The terminal supports changes between multiple satellites; The terminal supports multi-satellite orbit communication; The terminal supports movement between multiple satellite orbits; The terminal supports changes between multiple satellite orbits; In a satellite communication scenario, the terminal contains subscription information for multi-satellite orbit communication.

32. A wireless communication device, comprising: The processing module is used to determine the first radio access technology (RAT) associated with the first service based on the first information. The first information includes a first association relationship, which is an association relationship between business information and one or more RATs. The business information in the first association relationship includes at least the business information of the first business. The first RAT contains one or more RATs.

33. The apparatus according to claim 32, wherein, When the business information of the first service matches the business information in the first association relationship, the first RAT includes part or all of the RAT associated with the business information matched in the first association relationship.

34. The apparatus according to claim 32 or 33, wherein, The processing module is further configured to determine the first service based on at least one of the following: If the wireless communication device detects only one service, the detected service is identified as the first service; If the wireless communication device detects at least two services, the service with the highest priority among the at least two services shall be identified as the first service. If the wireless communication device detects at least two services, the service with the highest QoS requirement among the at least two services shall be identified as the first service. If the wireless communication device detects at least two services, it determines the service with the highest priority in the first association relationship among the at least two services as the first service.

35. The apparatus according to any one of claims 32 to 34, wherein, The first information also includes at least one of the following: The priority of business information; The second instruction information is used to instruct the mandatory execution of RAT selection according to the first association, or to instruct the preference to execute RAT selection according to the first association; The priority of the first association.

36. The apparatus of any one of claims 32-35, wherein, The wireless communication device further includes: The sending module is used to send the first RAT.

37. The apparatus according to claim 36, wherein, The sending module is specifically used for: If the first RAT does not contain the RAT of the currently camped cell, the first RAT is sent.

38. The apparatus according to claim 36 or 37, wherein, The sending module is also used to send first indication information; Wherein, the first indication information is used to indicate the forced selection of a RAT contained in the first RAT, or the first indication information is used to indicate a preference for selecting a RAT contained in the first RAT.

39. A wireless communication device, comprising: A receiving module is configured to receive a first radio access technology (RAT), wherein the first RAT includes one or more RATs; The processing module is configured to select a target cell based on the first RAT, wherein the RAT of the target cell is the RAT included in the first RAT.

40. The apparatus according to claim 39, wherein, The receiving module is further configured to receive first indication information; wherein the first indication information is configured to indicate the forced selection of a RAT contained in the first RAT, or the first indication information is configured to indicate a preference for selecting a RAT contained in the first RAT. Specifically, the processing module is used for: The target cell is selected based on the first RAT and the first indication information.

41. The apparatus of claim 40, wherein, The wireless communication device further includes a transmitting module; The processing module is specifically used to perform at least one of the following: If the first indication information is used to indicate the forced selection of a RAT contained in the first RAT, or the first indication information is used to indicate a preference for selecting a RAT contained in the first RAT, and the RAT of the cell searched by the wireless communication device matches the RAT in the first RAT, the searched cell is determined as the target cell. If the first indication information is used to indicate the forced selection of a RAT included in the first RAT, and the RAT of the cell searched by the wireless communication device does not match any of the RATs in the first RAT, the transmitting module is used to transmit second information, wherein the second information is used to indicate that the RAT selection has failed. If the first indication information is used to indicate a preference for selecting a RAT included in the first RAT, and the RAT of the cell searched by the wireless communication device does not match any of the RATs in the first RAT, the transmitting module is used to transmit third information, wherein the third information includes the RAT of the currently camped cell, or the third information includes the RAT of the cell camped after cell reselection.

42. The apparatus of any one of claims 39-41, wherein, The wireless communication device further includes a transmitting module; After successfully selecting the target cell, the sending module is further configured to send fourth information, wherein the fourth information includes the RAT of the target cell.

43. A wireless communication device, comprising: A receiving module is configured to receive second information, wherein the second information is used to indicate that the Radio Access Technology (RAT) selection has failed; The sending module is configured to send fifth information based on the second information, wherein the fifth information is used to indicate that the first service does not match the RAT, or the fifth information is used to indicate that the first service cannot be transmitted.

44. A wireless communication device, comprising: A receiving module is configured to receive fifth information, wherein the fifth information is used to indicate that the first service is incompatible with the Radio Access Technology (RAT), or the fifth information is used to indicate that the first service cannot be transmitted; The processing module is used to suspend the transmission of the first service or shut down the first service based on the fifth information.

45. A wireless communication device, comprising: A receiving module is configured to receive third information or fourth information, wherein the third information includes the Radio Access Technology (RAT) of the currently camped cell, or the third information includes the RAT of the cell to be camped after cell reselection, and the fourth information includes the RAT of the target cell. A processing module is used to record the current RAT, wherein the current RAT is the RAT contained in the third information, or the current RAT is the RAT contained in the fourth information.

46. A wireless communication device comprising: Sending module; If the first condition is met, the sending module is used to send the second radio access technology (RAT) associated with the second service; The first condition includes at least one of the following: The RAT of the cell currently camped or selected by the wireless communication device is the RAT associated with the first service; The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the second service; One or more RATs corresponding to the first association relationship of the second service do not include the RAT of the currently camped cell; The first association relationship is the association relationship between business information and one or more RATs.

47. A wireless communication device comprising: Sending module and receiving module; If the second condition is met, the sending module or the receiving module is used to perform the transmission of the second service; The second condition includes at least one of the following: The radio access technology (RAT) of the cell where the wireless communication device is currently camped or selected is the RAT associated with the first service. The priority of the second service is higher than the priority of the first service, or the priority of the first association of the second service is higher than the priority of the first association of the first service. One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell; Alternatively, the second condition includes at least one of the following: The RAT of the cell currently camped or selected by the wireless communication device is the RAT associated with the first service; The priority of the second service is lower than the priority of the first service, or the priority of the first association of the second service is lower than the priority of the first association of the first service; One or more RATs corresponding to the first association relationship of the second service include the RAT of the currently camped cell; The first association relationship is the association relationship between business information and one or more RATs.

48. A wireless communication device, comprising: The sending module is used to send the first information to the terminal; The first information includes a first association relationship, which is the association relationship between business information and one or more RATs.

49. The device of claim 48, wherein, The wireless communication device further includes: The receiving module is used to acquire the sixth piece of information; The sixth piece of information includes at least one of the following: first capability information, first contract information; The first capability information includes at least one of the following: The terminal supports multi-satellite communication; The terminal supports movement between multiple satellites; The terminal supports changes between multiple satellites; The terminal supports multi-satellite orbit communication; The terminal supports movement between multiple satellite orbits; The terminal supports changes between multiple satellite orbits; The first contract information includes the contract information for multi-track communication of the terminal in a satellite communication scenario; Specifically, the sending module is used for: The first information is sent to the terminal according to the sixth information.

50. A wireless communication device, comprising: The receiving module is used to acquire the seventh information; The sending module is used to send the sixth information to the first network device according to the seventh information; The sixth piece of information includes at least one of the following: first capability information, first contract information; The first capability information includes at least one of the following: The terminal supports multi-satellite communication; The terminal supports movement between multiple satellites; The terminal supports changes between multiple satellites; The terminal supports multi-satellite orbit communication; The terminal supports movement between multiple satellite orbits; The terminal supports changes between multiple satellite orbits; The first contract information includes: in a satellite communication scenario, the contract information for multi-satellite orbit communication of the terminal; The seventh piece of information includes at least one of the following: second capability information, second contract information; The second capability information includes at least one of the following: The terminal supports multi-satellite communication; The terminal supports movement between multiple satellites; The terminal supports changes between multiple satellites; The terminal supports multi-satellite orbit communication; The terminal supports movement between multiple satellite orbits; The terminal supports changes between multiple satellite orbits; The terminal does not support multi-satellite communication; The terminal does not support movement between multiple satellites; The terminal does not support changes between multiple satellites; The terminal does not support multi-satellite orbit communication; The terminal does not support movement between multiple satellite orbits; The terminal does not support changes between multiple satellite orbits; The second contract information includes at least one of the following: The first contract information; In satellite communication scenarios, the terminal does not contain subscription information for multi-satellite orbit communication.

51. 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 26.

52. 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 27 to 31.

53. A readable storage medium storing a program or instructions that, when executed by a processor, implement the wireless communication method as claimed in any one of claims 1 to 26, or implement the steps of the wireless communication method as claimed in any one of claims 27 to 31.

Images