Session establishment method and apparatus, and terminal, network-side device and medium

Abstract

The present application belongs to the technical field of communications. Disclosed are a session establishment method and apparatus, and a terminal, a network-side device and a medium. The session establishment method in the embodiments of the present application comprises: a terminal executing a first operation on the basis of first information, wherein the first information is used for representing satellite access; the first operation comprises any one of the following: enabling signaling compression negotiation, sending first indication information to a first network function, sending the first indication information to a second network function, enabling signaling compression, enabling signaling decompression, compressing sent signaling, decompressing received signaling, stopping sending a first message for indicating ringing, and performing a first prompt operation for prompting a user that a peer end is ringing; and the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority.

Description

Session establishment methods, devices, terminals, network-side equipment and media

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411821852.7, filed on December 11, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of communication technology, specifically relating to a session establishment method, apparatus, terminal, network-side equipment, and medium. Background Technology

[0004] Currently, during the establishment of an Internet Protocol Multimedia Subsystem (IMS) session, the called user may answer the call after the called terminal has rung. For example, if the call is answered 4 seconds after the called terminal has rung, the data size of the Session Initialization Protocol (SIP) 180 Ring (ringing) message is approximately 1046 bytes, and the air interface delivery time is approximately 8.4 seconds. After the calling terminal answers, the SIP 180 Ring message has not yet been delivered. The total air interface delivery time of the answer message is approximately 8.8 seconds under 1Kpb bandwidth. Therefore, the voice data can only be transmitted after approximately 8.8 + 8.4 - 4 = 13.2 seconds, meaning that the calling terminal can only send uplink voice data approximately 13.2 seconds after the answer.

[0005] When both the calling and called terminals are connected via satellite, the total transmission time of the SIP 180 Ring message and the response message will double, meaning the calling terminal will receive the called terminal's voice data approximately 30 seconds later. Furthermore, the calling terminal will only notify the calling user of the call connection after receiving the SIP 180 Ring message, resulting in a downlink voice data reception delay of approximately 9.3 seconds. This leads to a longer IMS session establishment time when using satellite access. Summary of the Invention

[0006] This application provides a session establishment method, apparatus, terminal, network-side device, and medium that can shorten the time of IMS session establishment in the case of satellite access.

[0007] In a first aspect, a session establishment method is provided, executed by a terminal, the method comprising: the terminal performing a first operation based on first information; wherein the first information is used to characterize satellite access; the first operation includes any one of the following: enabling signaling compression negotiation, sending first indication information to a first network function, sending first indication information to a second network function, enabling signaling compression, enabling signaling decompression, compressing transmitted signaling, decompressing received signaling, stopping the transmission of a first message for indicating ringing, and a first prompt operation for prompting the user to ring the other end; wherein the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority.

[0008] Secondly, a session establishment method is provided, executed by a second network function. The method includes: the second network function performing a third operation based on fifth information; wherein the fifth information includes at least one of the following: first information, first indication information, second indication information, and third indication information; the third operation includes at least one of the following: sending first configuration information to a terminal, sending second indication information to a terminal, and sending third indication information to a terminal; wherein the first information is used to characterize satellite access; the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority; the second indication information is related to at least one of the following: voice priority, data priority, and IMS signaling priority; the third indication information is related to at least one of the following: signaling compression and signaling decompression; the first configuration information is used to configure data or voice to have a higher priority than IMS signaling.

[0009] Thirdly, a session establishment method is provided, executed by a first network function. The method includes: the first network function performing a fourth operation based on sixth information; wherein the sixth information includes at least one of the following: first information, first indication information, second indication information, and third indication information; the fourth operation includes at least one of the following: enabling signaling compression negotiation, enabling signaling compression, enabling signaling decompression, compressing transmitted signaling, decompressing received signaling, sending first indication information to a second network function, sending second indication information to a second network function, sending third indication information to a second network function, sending second indication information to a terminal, and sending third indication information to a terminal; wherein the first information is used to characterize satellite access; the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority; the second indication information is related to at least one of the following: voice priority, data priority, and IMS signaling priority; and the third indication information is related to at least one of the following: signaling compression and signaling decompression.

[0010] Fourthly, a session establishment apparatus is provided, comprising: a first processing module; the first processing module being configured to perform a first operation based on first information; wherein the first information is used to characterize satellite access; the first operation includes any one of the following: enabling signaling compression negotiation, sending first indication information to a first network function, sending first indication information to a second network function, enabling signaling compression, enabling signaling decompression, compressing transmitted signaling, decompressing received signaling, stopping the transmission of a first message for indicating ringing, and a first prompt operation for prompting the user to ring the other end; wherein the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority.

[0011] Fifthly, a session establishment apparatus is provided, comprising: a second processing module; the second processing module being configured to perform a third operation based on fifth information; wherein the fifth information includes at least one of the following: first information, first indication information, second indication information, and third indication information; the third operation includes at least one of the following: sending first configuration information to a terminal, sending second indication information to a terminal, and sending third indication information to a terminal; wherein the first information is used to characterize satellite access; the first indication information is associated with at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority; the second indication information is associated with at least one of the following: voice priority, data priority, and IMS signaling priority; the third indication information is associated with at least one of the following: signaling compression and signaling decompression; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

[0012] A sixth aspect provides a session establishment apparatus, comprising: a third processing module; the third processing module being configured to perform a fourth operation based on sixth information; wherein the sixth information includes at least one of the following: first information, first indication information, second indication information, and third indication information; the fourth operation includes at least one of the following: enabling signaling compression negotiation, enabling signaling compression, enabling signaling decompression, compressing transmitted signaling, decompressing received signaling, sending first indication information to a second network function, sending second indication information to a second network function, sending third indication information to a second network function, sending second indication information to a terminal, and sending third indication information to a terminal; wherein the first information is used to characterize satellite access; the first indication information is associated with at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority; the second indication information is associated with at least one of the following: voice priority, data priority, and IMS signaling priority; and the third indication information is associated with at least one of the following: signaling compression and signaling decompression.

[0013] In a seventh aspect, a session establishment apparatus is provided, the apparatus being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect, or to implement the steps of the method described in the third aspect.

[0014] In an eighth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0015] A ninth aspect provides a terminal, including a processor and a communication interface, wherein the processor is configured to perform a first operation based on first information; wherein the first information is used to characterize satellite access; the first operation includes any one of the following: enabling signaling compression negotiation, sending first indication information to a first network function, sending first indication information to a second network function, enabling signaling compression, enabling signaling decompression, compressing transmitted signaling, decompressing received signaling, stopping the transmission of a first message for indicating ringing, and a first prompt operation for prompting the user to ring the other end; wherein the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority.

[0016] In a tenth aspect, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect, or implementing the steps of the method as described in the third aspect.

[0017] Eleventhly, a network-side device is provided, including a processor and a communication interface, wherein the processor is used to perform a third operation based on fifth information; wherein the fifth information includes at least one of the following: first information, first indication information, second indication information, and third indication information; the third operation includes at least one of the following: sending first configuration information to a terminal, sending second indication information to a terminal, and sending third indication information to a terminal; wherein the first information is used to characterize satellite access; the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority; the second indication information is related to at least one of the following: voice priority, data priority, and IMS signaling priority; the third indication information is related to at least one of the following: signaling compression and signaling decompression; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

[0018] Alternatively, the processor is configured to perform a fourth operation based on sixth information; wherein the sixth information includes at least one of the following: first information, first indication information, second indication information, and third indication information; the fourth operation includes at least one of the following: enabling signaling compression negotiation, enabling signaling compression, enabling signaling decompression, compressing transmitted signaling, decompressing received signaling, sending first indication information to a second network function, sending second indication information to a second network function, sending third indication information to a second network function, sending second indication information to a terminal, and sending third indication information to a terminal; wherein the first information is used to characterize satellite access; the first indication information is associated with at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority; the second indication information is associated with at least one of the following: voice priority, data priority, and IMS signaling priority; and the third indication information is associated with at least one of the following: signaling compression and signaling decompression.

[0019] In a twelfth 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.

[0020] In a thirteenth aspect, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal is configured to perform the steps of the method described in the first aspect, and the network-side device is configured to perform the steps of the method described in the second aspect, or the steps of the method described in the third aspect.

[0021] In a fourteenth 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 method as described in the first aspect, or the method as described in the second aspect, or the method as described in the third aspect.

[0022] In a fifteenth aspect, a computer program / program product is provided, the computer program / program product being stored in a storage medium, the computer program / program product being executed by at least one processor to implement the steps of the 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.

[0023] In this embodiment of the application, the terminal can perform a first operation based on first information; wherein, the first information is used to characterize satellite access; the first operation includes any one of the following: enabling signaling compression negotiation, sending first indication information to a first network function, sending first indication information to a second network function, enabling signaling compression, enabling signaling decompression, compressing the transmitted signaling, decompressing the received signaling, stopping the transmission of a first message for indicating ringing, and a first prompt operation for prompting the user to ring the other end; wherein, the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority. With this scheme, the terminal can perform any of the following actions based on the first information used to characterize satellite access: enable signaling compression negotiation, send a first indication message to a first network function, send a first indication message to a second network function, enable signaling compression, enable signaling decompression, compress the transmitted signaling, decompress the received signaling, stop sending the first message used to indicate ringing, and perform the first prompt operation used to prompt the user to ring the other end. Therefore, in the case of satellite access, the total transmission time of SIP 180 Ring messages and response messages can be shortened, thereby shortening the time of IMS session establishment. Attached Figure Description

[0024] Figure 1 is a block diagram of a wireless communication system applicable to an embodiment of this application;

[0025] Figure 2 is a flowchart of a session establishment method provided by some embodiments of this application;

[0026] Figure 3 is a flowchart of a session establishment method provided by some embodiments of this application;

[0027] Figure 4 is a flowchart of a session establishment method provided by some embodiments of this application;

[0028] Figure 5 is a schematic diagram of IMS signaling interaction in a session establishment method provided by some embodiments of this application;

[0029] Figure 6 is a schematic diagram of IMS signaling interaction in a session establishment method provided by some embodiments of this application;

[0030] Figure 7 is a schematic diagram of the structure of a session establishment device provided in some embodiments of this application;

[0031] Figure 8 is a schematic diagram of the structure of a session establishment device provided in some embodiments of this application;

[0032] Figure 9 is a schematic diagram of the structure of a session establishment device provided in some embodiments of this application;

[0033] Figure 10 is a schematic diagram of the communication device provided in an embodiment of this application;

[0034] Figure 11 is a schematic diagram of the hardware structure of the terminal provided in an embodiment of this application;

[0035] Figure 12 is a schematic diagram of the hardware structure of the network-side device provided in an embodiment of this application. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0039] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0040] 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 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 or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (WiFi) nodes, etc.The term "base station" 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), or any other suitable 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 terminology. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.

[0041] 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 (or L-NEF), and Binding Support. The core network functions include: BSF (Block Network Function), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), and Network Data Analytics Function (NWDAF). It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0042] 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).

[0043] The following explains some concepts and / or terms involved in the session establishment method, apparatus, terminal, network-side device and medium provided in the embodiments of this application.

[0044] 1. Priority

[0045] The current Quality of Service (QoS) priority level is configured as follows: IMS signaling has a higher priority than voice data; terminals and eNBs must complete the air interface delivery of IMS signaling before they can perform the air interface delivery of voice data.

[0046] 2. Signaling Compression (SigComp)

[0047] Signaling compression is a mechanism for compressing application layer protocol messages, aiming to reduce message size, thereby lowering transmission costs and improving transmission efficiency. Signaling compression is primarily used for message compression in protocols such as SIP and Real-Time Streaming Protocol (RTSP). Signaling compression achieves message compression by inserting a compression layer between the application layer and the transport layer. It uses specific compression algorithms to encode application layer messages while tracking compression status changes to ensure that the compressed messages can be correctly decompressed by a remote, generic decompression virtual machine.

[0048] The session establishment method, apparatus, terminal, network-side device, and medium provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0049] The session establishment method provided in this application can be applied to IMS session establishment scenarios.

[0050] For example, during the IMS session establishment process, the terminal may perform a first operation based on first information; wherein the first information is used to characterize satellite access; the first operation includes any one of the following: enabling signaling compression negotiation, sending first indication information to the Proxy-Call Session Control Function (P-CSCF), sending first indication information to the PCF or to the Policy and Charging Control (PCC), enabling signaling compression, enabling signaling decompression, compressing the transmitted signaling, decompressing the received signaling, stopping the transmission of SIP 180 Ring messages, and providing a first prompt operation to the user to indicate the other end's ringing; wherein the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority.

[0051] Thus, since the terminal can perform any of the following actions based on the first information used to characterize satellite access: enabling signaling compression negotiation, sending first indication information to the P-CSCF, sending first indication information to the PCF or PCC, enabling signaling compression, enabling signaling decompression, compressing the transmitted signaling, decompressing the received signaling, stopping the transmission of SIP 180 Ring messages, and prompting the user for the first ringing operation; therefore, in the case of satellite access, the total transmission time of SIP 180 Ring messages and response messages can be shortened, thereby shortening the duration of the IMS session establishment process.

[0052] It should be noted that the network functions described in the embodiments of this application can be understood as network function entities, network elements, or gateways and other network-side devices.

[0053] Some embodiments of this application provide a session establishment method, and Figure 2 shows a flowchart of the session establishment method provided by some embodiments of this application. As shown in Figure 2, the session establishment method provided by some embodiments of this application may include the following step 201.

[0054] Step 201: The terminal performs the first operation based on the first information.

[0055] The first information is used to characterize satellite access; the first operation includes any one of the following: enabling signaling compression negotiation, sending a first indication message to a first network function, sending a first indication message to a second network function, enabling signaling compression, enabling signaling decompression, compressing the sent signaling, decompressing the received signaling, stopping the sending of a first message to indicate ringing, and a first prompt operation to prompt the user to ring the other end.

[0056] The first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority.

[0057] Optionally, in this embodiment of the application, the terminal can be the calling terminal or the called terminal.

[0058] Optionally, in this embodiment of the application, the first information may be Radio Access Technology (RAT) type information, which may indicate that the RAT type of the terminal is satellite access.

[0059] Optionally, in the embodiments of this application, the above-mentioned satellite access may include, but is not limited to, any of the following: Non-Terrestrial Network (NTN) access, Low Earth Orbit (LEO) access, GEO access, and Medium Earth Orbit (MEO) access.

[0060] Optionally, in this embodiment of the application, the first network function may be P-CSCF.

[0061] Optionally, in this embodiment of the application, the second network function can be PCF or PCC.

[0062] It should be noted that the first network function can also be any network function with the same function as P-CSCF, and the second network function can also be any network function with the same function as PCF or PCC. The specific names of the first network function and the second network function are not limited in the embodiments of this application.

[0063] Optionally, in this embodiment of the application, the first message may be a SIP 180 Ring message.

[0064] Optionally, in this embodiment of the application, the terminal stops sending the first message, that is, the called terminal rings but does not notify the calling terminal.

[0065] Optionally, in this embodiment of the application, the terminal performs a first prompting operation, that is, the calling terminal does not receive the ringing information from the other end, but still prompts the user that the other end is ringing.

[0066] It is understandable that after the terminal stops sending the first message (SIP 180 Ring message), it can stop transmitting the first message, thereby shortening the total transmission time of the first message and the duration of the IMS session establishment process. After the terminal performs the first prompt operation, it no longer needs to send the SIP 180 Ring message, thereby reducing the number of messages sent during the IMS session establishment process, which can shorten the duration of the IMS session establishment process. Optionally, in the embodiments of this application, the above-mentioned voice priority, data priority, and IMS signaling priority can be determined according to the context; for example, voice can be prioritized over a certain object according to the context.

[0067] Optionally, in this embodiment of the application, the first indication information may include indication information or capability information; wherein, the indication information is used to indicate the execution of related operations, and the capability information is used to characterize the possession of related capabilities.

[0068] For example, assuming the first indication information is related to signaling compression, then the above indication information can be used to indicate the execution of signaling compression, and the above capability information can be used to characterize the ability to perform signaling compression.

[0069] For example, assuming the first instruction information is related to voice priority, then the aforementioned instruction information can be used to instruct the execution of voice priority, and the aforementioned capability information can be used to characterize the capability of having voice priority.

[0070] Optionally, in the embodiments of this application, the first indication information may be used to indicate at least one of the following: priority processing of voice, priority processing of data, priority processing of voice over IMS signaling, priority processing of data over IMS signaling, the ability to prioritize voice, the ability to prioritize data, the ability to prioritize voice over IMS signaling, the ability to prioritize data over IMS signaling, signaling compression, signaling decompression, the ability to compress signaling, and the ability to decompress signaling.

[0071] Optionally, in this embodiment, when the first indication information is related to IMS signaling priority, the first indication information can be used to indicate at least one of the following: not prioritizing IMS signaling, and the ability not prioritizing IMS signaling. In this embodiment, since the first indication information can indicate at least one of the following: prioritizing voice processing, prioritizing data processing, prioritizing voice processing over IMS signaling, prioritizing data processing over IMS signaling, the ability to prioritize voice processing, the ability to prioritize data processing, the ability to prioritize voice processing over IMS signaling, the ability to prioritize data processing, signaling compression, signaling decompression, the ability to compress signaling, and the ability to decompress signaling; therefore, the terminal can send different indications related to signaling compression or priority to the first network function and / or the second network function, thereby flexibly informing the network function of relevant information regarding signaling compression or voice / data priority.

[0072] Optionally, in this embodiment of the application, the first operation may include a first prompt operation. For example, step 201 described above can be implemented specifically through step 201a below.

[0073] Step 201a: Based on the first information, and provided that the transmission resources for IMS voice or IMS data have been reserved, the terminal performs the first prompt operation.

[0074] It is understandable that after the transmission resources for IMS voice or IMS data are reserved, the terminal can perform the first prompt operation to remind the user that the other end is ringing.

[0075] In this embodiment, since the terminal only performs the first prompt operation after the IMS voice or IMS data transmission resources have been reserved, the user can be prompted to ring the other end when the IMS voice or IMS data transmission resources have been reserved.

[0076] Optionally, in the embodiments of this application, the above step 201a can be specifically implemented by the following step 201a1.

[0077] Step 201a1: Based on the first information, and provided that the transmission resources for IMS voice or IMS data have been reserved, the terminal executes the first prompt operation based on the second information.

[0078] The second information includes second instruction information; wherein the second instruction information is related to at least one of the following: voice priority, data priority, and IMS signaling priority.

[0079] Optionally, in this embodiment of the application, the second indication information may be indication information related to voice priority.

[0080] Optionally, in this embodiment of the application, the terminal may perform a first operation based on the first information; or, it may perform a first operation based on the first information and the second instruction information; or, it may perform a first operation based on the second instruction information.

[0081] Optionally, in the embodiments of this application, step 201 above can be specifically implemented by step 201b below.

[0082] Step 201b: The terminal performs the first operation based on the first information and the fourth information.

[0083] The fourth information includes at least one of the following: second indication information sent by the first network function, third indication information sent by the first network function, second indication information sent by the second network function, third indication information sent by the second network function, and first configuration information sent by the second network function.

[0084] The second instruction information is related to at least one of the following: voice priority, data priority, IMS signaling priority; the third instruction information is related to at least one of the following: signaling compression, signaling decompression; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

[0085] Optionally, in this embodiment of the application, the third indication information may be indication information related to signaling compression.

[0086] Optionally, in this embodiment of the application, the first configuration information may be used to configure the priority of IMS data or IMS voice to be higher than the priority of IMS signaling.

[0087] In this embodiment of the application, since the terminal can perform the first operation based on the first information and the fourth information, it can perform the first operation through the instruction or configuration of the first network function or the second network function, thereby improving the flexibility of performing the first operation.

[0088] Optionally, in this embodiment of the application, the second indication information may include indication information or capability information; wherein, the indication information is used to indicate the execution of related operations, and the capability information is used to characterize the possession of related capabilities.

[0089] For example, assuming the second instruction information is related to voice priority, then the aforementioned instruction information can be used to instruct the execution of voice priority, and the aforementioned capability information can be used to characterize the capability of having voice priority.

[0090] Optionally, in the embodiments of this application, the second indication information may be used to indicate at least one of the following: voice priority, voice priority over signaling, IMS data or IMS voice priority, IMS data or IMS voice priority over IMS signaling, the ability to prioritize voice processing, the ability to prioritize data processing, the ability to prioritize voice processing over IMS signaling, and the ability to prioritize data processing over IMS signaling.

[0091] In this embodiment of the application, since the second indication information can indicate at least one of the following: voice priority, voice priority over signaling, IMS data or IMS voice priority, IMS data or IMS voice priority over IMS signaling, the ability to prioritize voice processing, the ability to prioritize data processing, the ability to prioritize voice processing over IMS signaling, and the ability to prioritize data processing over IMS signaling; therefore, the terminal can perform the first operation based on the different priority-related indications sent by the first network function and / or the second network function, thereby further improving the flexibility of performing the first operation.

[0092] Optionally, in this embodiment of the application, the third indication information may include indication information or capability information; wherein, the indication information is used to indicate the execution of related operations, and the capability information is used to characterize the possession of related capabilities.

[0093] For example, assuming the third indication information is related to signaling compression, then the above indication information can be used to indicate the execution of signaling compression, and the above capability information can be used to characterize the ability to perform signaling compression.

[0094] Optionally, in the embodiments of this application, the third indication information may be used to indicate at least one of the following: signaling compression, signaling decompression, signaling compression capability, and signaling decompression capability.

[0095] In this embodiment of the application, since the third indication information can indicate at least one of the following: signaling compression, signaling decompression, signaling compression capability, and signaling decompression capability, the terminal can perform the first operation based on different indications related to signaling compression sent by the first network function and / or the second network function, thereby further improving the flexibility of performing the first operation.

[0096] In some embodiments of the session establishment method provided in this application, since the terminal can perform any of the following based on the first information used to characterize satellite access: enabling signaling compression negotiation, sending first indication information to a first network function, sending first indication information to a second network function, enabling signaling compression, enabling signaling decompression, compressing the sent signaling, decompressing the received signaling, stopping the transmission of a first message to indicate ringing, and prompting the user for a first prompt operation to indicate ringing at the other end; therefore, in the case of satellite access, the total transmission time of SIP 180 Ring messages and response messages can be shortened, thereby shortening the duration of the IMS session establishment process.

[0097] Optionally, some embodiments of this application may further include the following step 202 in the session establishment method.

[0098] Step 202: Upon receiving IMS voice or IMS data, the terminal determines that the IMS session has been acknowledged or answered.

[0099] Optionally, in this embodiment of the application, even if the terminal does not receive a SIP 180 Ring message, it can still determine that the IMS session has been acknowledged or answered when receiving IMS voice or IMS data.

[0100] In this embodiment, since the terminal can determine that the IMS session has been acknowledged or answered upon receiving IMS voice or IMS data, it can directly perform the relevant operations after the acknowledgment without waiting to receive the SIP 180 Ring message, thereby shortening the time required to establish the IMS session.

[0101] Optionally, some embodiments of this application may further include the following step 203 in the session establishment method.

[0102] Step 203: Based on the third information, the terminal performs the second operation upon receiving IMS voice or IMS data.

[0103] The third information includes at least one of the following: first information, second instruction information, and first configuration information; the second operation includes at least one of the following: sending IMS voice or IMS data to prompt the user that the IMS session has been answered or received by the other end.

[0104] The second instruction information is related to at least one of the following: voice priority, data priority, IMS signaling priority; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

[0105] Optionally, in this embodiment of the application, the aforementioned IMS voice may include uplink IMS voice.

[0106] Optionally, in this embodiment of the application, the IMS data mentioned above may include uplink IMS data.

[0107] In this embodiment of the application, since the terminal can perform a second operation based on at least one of the first information, the second instruction information and the first configuration information when receiving IMS voice or IMS data, the flexibility of performing the second operation can be improved.

[0108] Some embodiments of this application provide a session establishment method, and Figure 3 shows a flowchart of the session establishment method provided by some embodiments of this application. As shown in Figure 3, the session establishment method provided by some embodiments of this application may include the following step 301.

[0109] Step 301: The second network function performs the third operation based on the fifth information.

[0110] The fifth information includes at least one of the following: first information, first instruction information, second instruction information, and third instruction information; the third operation includes at least one of the following: sending first configuration information to the terminal, sending second instruction information to the terminal, and sending third instruction information to the terminal.

[0111] The first information is used to characterize satellite access; the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, IMS signaling priority; the second indication information is related to at least one of the following: voice priority, data priority, IMS signaling priority; the third indication information is related to at least one of the following: signaling compression, signaling decompression; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

[0112] Optionally, in the embodiments of this application, step 301 above can be specifically implemented by step 301a below.

[0113] Step 301a: Upon receiving the fifth information sent by the first network function, the second network function performs the third operation based on the fifth information.

[0114] Optionally, in this embodiment of the application, the fifth information may be sent from the first network function to the second network function.

[0115] In some embodiments of this application, the session establishment method provides that, since the second network function can perform any one of the following based on at least one of the first information, first indication information, second indication information, and third indication information: sending first configuration information to the terminal, sending second indication information to the terminal, and sending third indication information to the terminal; therefore, in the case of satellite access, the terminal can perform related operations according to these configuration or indication information to shorten the total transmission time of SIP 180 Ring messages and response messages, thereby shortening the duration of the IMS session establishment process.

[0116] Optionally, some embodiments of this application may further include the following step 302 in the session establishment method.

[0117] Step 302: The second network function receives the first instruction information from the terminal.

[0118] Optionally, in this embodiment of the application, when the terminal accesses the mobile network, it may send an attach request or register request in a non-access stratum (NAS) message, which may carry first indication information.

[0119] Optionally, in this embodiment of the application, the first indication information can be carried through Protocol Configuration Options (PCO) or UE policy container.

[0120] For further descriptions of the session establishment methods provided in some embodiments of this application, please refer to the relevant descriptions in the above terminal-side method embodiments. To avoid repetition, they will not be repeated here.

[0121] Some embodiments of this application provide a session establishment method, and Figure 4 shows a flowchart of the session establishment method provided by some embodiments of this application. As shown in Figure 4, the session establishment method provided by some embodiments of this application may include the following step 401.

[0122] Step 401: The first network function performs the fourth operation based on the sixth information.

[0123] The sixth information includes at least one of the following: first information, first instruction information, second instruction information, and third instruction information; the fourth operation includes at least one of the following: enabling signaling compression negotiation, enabling signaling compression, enabling signaling decompression, compressing transmitted signaling, decompressing received signaling, sending first instruction information to the second network function, sending second instruction information to the second network function, sending third instruction information to the second network function, sending second instruction information to the terminal, and sending third instruction information to the terminal.

[0124] Wherein, the first information is used to characterize satellite access; the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, IMS signaling priority; the second indication information is related to at least one of the following: voice priority, data priority, IMS signaling priority; and the third indication information is related to at least one of the following: signaling compression, signaling decompression.

[0125] Optionally, in this embodiment of the application, the first indication information may be obtained from the terminal.

[0126] Optionally, in this embodiment of the application, the second instruction information and the third instruction information may be instruction information given by the first network function to the terminal.

[0127] In some embodiments of this application, the session establishment method provides that, since the first network function can perform any of the following based on at least one of the first information, first indication information, second indication information, and third indication information: enabling signaling compression negotiation, enabling signaling compression, enabling signaling decompression, compressing the transmitted signaling, decompressing the received signaling, sending the first indication information to the second network function, sending the second indication information to the second network function, sending the third indication information to the second network function, sending the second indication information to the terminal, and sending the third indication information to the terminal; therefore, in the case of satellite access, the total transmission time of SIP 180 Ring messages and response messages can be shortened, thereby shortening the duration of the IMS session establishment process.

[0128] Optionally, some embodiments of this application may further include the following step 402 in the session establishment method.

[0129] Step 402: Based on the sixth information, the first network function stops sending at least one of the first message and the response message to the terminal.

[0130] The first message is used to indicate ringing; the response message is used to indicate the other end's response.

[0131] Optionally, in this embodiment of the application, the above-mentioned response message may be a SIP 200 OK message.

[0132] Optionally, some embodiments of this application may further include the following step 403 in the session establishment method.

[0133] Step 403: When the sending of response messages to the terminal is stopped, the first network function sends a session confirmation response message to the called party.

[0134] Optionally, in this embodiment of the application, the session confirmation response message can be a SIP ACK message.

[0135] Optionally, in the embodiments of this application, step 403 above can be specifically implemented by step 403a below.

[0136] Step 403a: When the sending of response messages to the terminal is stopped, the first network function sends a session confirmation response message to the called party based on the sixth information.

[0137] For further descriptions of the session establishment methods provided in some embodiments of this application, please refer to the relevant descriptions in the above-described terminal-side and second network function-side method embodiments. To avoid repetition, they will not be repeated here.

[0138] The session establishment methods provided by some embodiments of this application will be described exemplarily below with reference to the accompanying drawings.

[0139] For example, assuming the terminal is a calling terminal UE-O with GEO access and the called terminal is a terrestrial access terminal, the first network function is P-CSCF, and the second network function is PCC or PCF, then as shown in Figure 5, the IMS signaling interaction in the session establishment method provided by some embodiments of this application is as follows:

[0140] 1. When a UE-O accesses a mobile network (e.g., 5G or 4G network), it sends an Attach Request or Register Request NAS message, which may carry first indication information. This indication information is carried through the PCO or UE policy container. This indication information is ultimately received by the PCC (4G network) or PCF (5G network).

[0141] 2. Optionally, the PCF or PCC, based on at least one of satellite access (first information) and first indication information in the RAT Type of UE-O, configures the priority of IMS data or IMS voice for UE-O to be higher than the priority of IMS signaling. This configuration will eventually be sent to the base station for base station scheduling. Optionally, the PCF or PCC, based on at least one of satellite access and first indication information in the RAT Type of UE-O, instructs UE-O to enable SigComp.

[0142] 3. Optionally, UE-O uses satellite access based on RAT Type and enables SigComp negotiation.

[0143] 4. UE-O registers with the IMS system, for example, by sending a SIP REGISTER message carrying a RAT type indicating satellite access. Optionally, if UE-O decides to enable SigComp negotiation, the SIP REGISTER message carries SigComp related information (third indication information), such as carrying comp = sigcomp. Upon receiving the SIP REGISTER message, P-CSCF1 obtains at least one of the UE-O's RAT type information and the first indication information from the PCC or PCF.

[0144] 5. The IMS system accepts the registration of UE-O and sends a SIP 200 OK message to UE-O. The message passes through P-CSCF1.

[0145] 6. P-CSCF1 decides to enable SigComp based on at least one of the RAT type and SigComp related information received from UE-O, and the RAT type and first indication information received from PCC or PCF.

[0146] 7. When forwarding SIP 200 OK to UE-O. Optionally, if the P-CSCF decision enables SigComp negotiation, the SIP 200 OK message carries SigComp related information, such as comp=sigcomp.

[0147] 8. UE-O initiates a call and sends a SIP INVITE (invitation) message compressed using SigComp.

[0148] 9. P-CSCF uses SigComp technology to decompress the SIP INVITE message and then forwards it to the IMS system.

[0149] 10. The IMS system responds to the SIP 183 Progress message, optionally carrying voice priority-related indications (e.g., no ringback tone service, no early media service, voice priority, etc.). Optionally, the P-CSCF, based on at least one of the UE-O's RAT Type (satellite access), first indication information, and voice priority-related indications (second indication information), indicates voice priority to the PCC or PCF. The PCC or PCF configures the UE-O to have higher priority for IMS data or IMS voice than for IMS signaling. This configuration is ultimately sent to the base station for base station scheduling.

[0150] 11. The P-CSCF sends a SigComp-compressed SIP 183 Progress message to the UE-O, optionally carrying a voice priority indication.

[0151] 12. The P-CSCF interacts with the mobile network to reserve IMS voice or IMS data transmission resources for UE-O, including bearer resources and QoS-related information. Optionally, based on at least one of the UE-O's RAT Type (satellite access, first indication information, or voice priority-related indication), the P-CSCF indicates voice priority to the PCC or PCF. The PCC or PCF configures the priority of IMS data or IMS voice for UE-O to be higher than the priority of IMS signaling. Optionally, the PCC or PCF sends a voice priority indication to UE-O.

[0152] 13. Optionally, after the IMS data or IMS voice transmission resources are reserved, the UE-O sends a notification to the end user indicating that the other end is ringing. Optionally, the UE-O performs the above notification operation based on at least one of the indications related to satellite access and voice priority in the RAT Type.

[0153] 14. The IMS system sends a SIP 180 Ring message to indicate that the peer is ringing. The P-CSCF may optionally not forward the SIP 180 Ring message to the UE-O. Optionally, the P-CSCF may perform the above-mentioned operation of not sending the SIP 180 Ring message based on at least one of the following: the UE-O's RAT Type is satellite access, first indication information, or voice priority related indication.

[0154] 15. Optionally, upon receiving IMS voice or IMS data, even without receiving a SIP 180 Ring message, the UE-O determines that the IMS session has been acknowledged or answered by the peer and performs various operations following the acknowledgment, including sending uplink IMS voice or IMS data and notifying the user that the session has been acknowledged or answered. Optionally, the UE-O performs the above operations based on at least one of the indications related to satellite access and voice priority in the RAT Type.

[0155] 16. Optionally, the P-CSCF forwards SIP 180 Ring messages compressed using SigComp technology to the UE-O.

[0156] 17. After the peer responds to the IMS session, it sends a SIP 200 OK message (after the peer responds, it may send IMS voice or IMS data first and then send the SIP 200 OK message, or it may send the SIP 200 OK message first and then send IMS voice or IMS data; this embodiment assumes the former, so IMS voice or IMS data arrives at UE-O before IMS signaling). Optionally, the P-CSCF does not forward the SIP 200 OK message to UE-O. Optionally, the P-CSCF performs the above operation of not sending SIP 200 OK based on at least one of the following: UE-O's RAT Type is satellite access, first indication information, and voice priority-related indication.

[0157] 18. Optionally, the P-CSCF forwards the SigComp-compressed SIP 200 OK message to the UE-O.

[0158] 19. Upon receiving SIP 200 OK, UE-O sends a SigComp compressed SIP ACK message to the IMS system.

[0159] 20. Optionally, the P-CSCF sends a SIP ACK message to the IMS system. The P-CSCF sends a SIP ACK message immediately if it has not sent SIP 200 OK to the UE-O; or, if the P-CSCF has sent SIP 200 OK to the UE-O (compressed or uncompressed), it forwards the SIP ACK message received from the UE-O. Optionally, the P-CSCF may not send a SIP ACK. In this case, the P-CSCF may perform the operation of not sending a SIP ACK based on at least one of the following: the UE-O's RAT Type is satellite access, first indication information, or voice priority-related indication.

[0160] For example, assuming the terminal is a called terminal UE-T with GEO access and the calling terminal is with terrestrial access, the first network function is P-CSCF, and the second network function is PCC or PCF, then as shown in Figure 6, the IMS signaling interaction in the session establishment method provided by some embodiments of this application is as follows:

[0161] 0. Same as steps 1-7 in the example in Figure 5.

[0162] 1. The IMS system initiates a call to the UE-T and sends a SIP INVITE message, optionally carrying voice priority-related indications (such as no ringback tone service, no early media service, voice priority, etc.).

[0163] 2. The P-CSCF uses SigComp technology to compress the SIP INVITE message and then forwards it to the UE-T, optionally carrying a voice priority indication.

[0164] 3. The UE-T responds with a SIP 183 Progress message, which is compressed using SigComp technology.

[0165] 4. Optionally, the P-CSCF, based on at least one of the following: UE-O's RAT Type (satellite access, first indication information, voice priority-related indication), instructs the PCC or PCF to prioritize voice. The PCC or PCF then configures the UE-O to prioritize IMS data or IMS voice over IMS signaling. This configuration is ultimately sent to the base station for base station scheduling. The P-CSCF uses SigComp technology to decompress the SIP 183 Progress message and then sends the SIP 183 Progress message to the IMS system.

[0166] 5. The P-CSCF interacts with the mobile network to reserve IMS voice or IMS data transmission resources for the UE-T, including bearer resources and QoS-related information. Optionally, based on at least one of the UE-T's RAT Type (satellite access, first indication information, or voice priority-related indication), the P-CSCF indicates voice priority to the PCC or PCF. The PCC or PCF configures the priority of IMS data or IMS voice for the UE-O to be higher than the priority of IMS signaling. Optionally, the PCC or PCF sends a voice priority indication to the UE-O.

[0167] 6. Optionally, after the IMS data or IMS voice transmission resources are reserved, the UE-T sends a notification or rings the phone to the end user. Optionally, the UE-T does not send a SIP 180 Ring message. Optionally, the UE-T performs the above notification or ringing operation, and / or the non-sending of the SIP 180 Ring message, based on at least one of the RAT Type indications related to satellite access and voice priority. Optionally, the UE-T sends a SIP 180 Ring message compressed using SigComp technology to the IMS system to notify the other end to ring.

[0168] 7. The P-CSCF may optionally not forward SIP 180 Ring messages to the IMS system. Optionally, the P-CSCF may perform the above-mentioned non-sending of SIP 180 Ring messages based on at least one of the following: UE-T RAT Type: satellite access, first indication information, or voice priority-related indication. Optionally, the P-CSCF may forward SIP 180 Ring messages decompressed using SigComp technology.

[0169] 8. Optionally, the UE-T first sends IMS voice or IMS data, and then sends SIP 200 OK. Optionally, the UE-T performs the above operation based on at least one of the RAT Type indications related to satellite access and voice priority. SIP 200 OK uses SigComp compression technology.

[0170] 9. Optionally, the P-CSCF may forward the SIP 200 OK message to or not to the IMS system. Optionally, in the operation of not sending the SIP 200 OK message, the P-CSCF may perform the operation based on at least one of the following: the UE-T's RAT Type being satellite access, first indication information, or voice priority-related indication.

[0171] 10. The P-CSCF receives a SIP ACK message from the IMS system. Optionally, the P-CSCF may or may not forward the SigComp-compressed SIP ACK message to the UE-O. Optionally, the P-CSCF may perform the operation of not sending a SIP ACK based on at least one of the following: the UE-T's RAT Type being satellite access, first indication information, or voice priority-related indication.

[0172] 11. Optionally, the P-CSCF sends a SIP ACK message compressed using SigComp technology to the UE-T. The P-CSCF sends the SIP ACK message immediately if it does not send SIP 200 OK to the IMS system, or forwards it when it receives a SIP ACK message from the IMS system.

[0173] In this way, when satellite access is available, the time required to establish an IMS session can be reduced, effectively improving the user experience when a voice call is connected.

[0174] The above-described method embodiments, or various possible implementations of the method embodiments, can be executed individually, or, provided there are no contradictions, they can be combined with each other. The specific implementation can be determined according to actual usage requirements, and this application embodiment does not impose any restrictions on this.

[0175] The session establishment method provided in this application can be executed by a session establishment device. This application uses the execution of the session establishment method by a session establishment device as an example to illustrate the session establishment device provided in this application.

[0176] This application provides a session establishment apparatus. As an example, the session establishment apparatus may be a communication device or a component within a communication device, such as a chip. The communication device 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.

[0177] The session establishment 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, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), 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: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0178] Specifically, referring to Figure 7, when the session establishment device is a terminal or a component within a terminal, the session establishment device 70 includes: a first processing module 71. The first processing module 71 can be used to perform a first operation based on first information. The first information is used to characterize satellite access; the first operation includes any one of the following: enabling signaling compression negotiation, sending first indication information to a first network function, sending first indication information to a second network function, enabling signaling compression, enabling signaling decompression, compressing transmitted signaling, decompressing received signaling, stopping the transmission of a first message indicating ringing, and a first prompt operation to prompt the user about ringing at the other end. The first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority.

[0179] In one possible implementation, the first operation may include a first prompt operation. Specifically, the first processing module 71 may be used to execute the first prompt operation when the transmission resources for IMS voice or IMS data are reserved.

[0180] In one possible implementation, the first processing module 71 can be specifically used to perform a first prompt operation based on second information. The second information includes second indication information. The second indication information is related to at least one of the following: voice priority, data priority, and IMS signaling priority.

[0181] In one possible implementation, the first processing module 71 can also be used to determine whether an IMS session has been answered or received upon receiving IMS voice or IMS data.

[0182] In one possible implementation, the first processing module 71 can also be used to perform a second operation based on third information upon receiving IMS voice or IMS data. The third information includes at least one of the following: first information, second indication information, and first configuration information; the second operation includes at least one of the following: sending IMS voice or IMS data to prompt the user that the IMS session has been answered or acknowledged by the other end. The second indication information is related to at least one of the following: voice priority, data priority, and IMS signaling priority; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

[0183] In one possible implementation, the first indication information may be used to indicate at least one of the following: priority processing of voice, priority processing of data, priority processing of voice over IMS signaling, priority processing of data over IMS signaling, the ability to prioritize voice, the ability to prioritize data, the ability to prioritize voice over IMS signaling, the ability to prioritize data over IMS signaling, signaling compression, signaling decompression, the ability to compress signaling, and the ability to decompress signaling.

[0184] In one possible implementation, the first processing module 71 can specifically be used to perform a first operation based on first information and fourth information. The fourth information includes at least one of the following: second indication information sent by a first network function, third indication information sent by a first network function, second indication information sent by a second network function, third indication information sent by a second network function, and first configuration information sent by a second network function. The second indication information is related to at least one of the following: voice priority, data priority, and IMS signaling priority; the third indication information is related to at least one of the following: signaling compression and signaling decompression; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

[0185] In one possible implementation, the second indication information may be used to indicate at least one of the following: voice priority, voice priority over signaling, IMS data or IMS voice priority, IMS data or IMS voice priority over IMS signaling, the ability to prioritize voice processing, the ability to prioritize data processing, the ability to prioritize voice processing over IMS signaling, and the ability to prioritize data processing over IMS signaling.

[0186] In one possible implementation, the third indication information can be used to indicate at least one of the following: signaling compression, signaling decompression, signaling compression capability, and signaling decompression capability.

[0187] In the session establishment apparatus provided in this application embodiment, since the session establishment apparatus can perform any of the following based on the first information used to characterize satellite access: enabling signaling compression negotiation, sending first indication information to a first network function, sending first indication information to a second network function, enabling signaling compression, enabling signaling decompression, compressing the sent signaling, decompressing the received signaling, stopping the transmission of the first message used to indicate ringing, and prompting the user for the first prompt operation of ringing at the other end; therefore, in the case of satellite access, the total transmission time of SIP 180 Ring messages and response messages can be shortened, thereby shortening the time of IMS session establishment process.

[0188] The session establishment apparatus provided in this application embodiment can implement the various processes implemented in the above terminal-side method embodiment and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0189] Referring to Figure 8, when the session establishment device is a network-side device or a component within a network-side device, the session establishment device 80 includes: a second processing module 81. The second processing module 81 can be used to perform a third operation based on fifth information. The fifth information includes at least one of the following: first information, first indication information, second indication information, and third indication information; the third operation includes at least one of the following: sending first configuration information to the terminal, sending second indication information to the terminal, and sending third indication information to the terminal. The first information is used to characterize satellite access; the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority; the second indication information is related to at least one of the following: voice priority, data priority, and IMS signaling priority; the third indication information is related to at least one of the following: signaling compression and signaling decompression; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

[0190] In one possible implementation, the second processing module 81 can be used to perform a third operation based on the fifth information received from the first network function.

[0191] In one possible implementation, the session establishment device 80 may further include a receiving module. The receiving module can be used to receive first indication information from the terminal.

[0192] In the session establishment apparatus provided in this application embodiment, since the session establishment apparatus can perform any one of the following based on at least one of the first information, first indication information, second indication information, and third indication information: sending first configuration information to the terminal, sending second indication information to the terminal, and sending third indication information to the terminal; therefore, in the case of satellite access, the terminal can perform related operations according to these configuration or indication information to shorten the total transmission time of SIP 180 Ring messages and response messages, thereby shortening the time of IMS session establishment process.

[0193] The session establishment apparatus provided in this application embodiment can implement all the processes implemented in the above-described second network function side method embodiment and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0194] Referring to Figure 9, when the session establishment device is a network-side device or a component within a network-side device, the session establishment device 90 includes a third processing module 91. The third processing module 91 can be used to perform a fourth operation based on sixth information. The sixth information includes at least one of the following: first information, first indication information, second indication information, and third indication information; the fourth operation includes at least one of the following: enabling signaling compression negotiation, enabling signaling compression, enabling signaling decompression, compressing transmitted signaling, decompressing received signaling, sending first indication information to a second network function, sending second indication information to a second network function, sending third indication information to a second network function, sending second indication information to a terminal, and sending third indication information to a terminal. The first information is used to characterize satellite access; the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority; the second indication information is related to at least one of the following: voice priority, data priority, and IMS signaling priority; the third indication information is related to at least one of the following: signaling compression and signaling decompression.

[0195] In one possible implementation, the session establishment device 90 may further include a sending module. The sending module can be used to stop sending at least one of a first message and a response message to the terminal based on sixth information. The first message is used to indicate ringing; the response message is used to indicate a response from the other end.

[0196] In one possible implementation, the sending module can also be used to send a session confirmation response message to the called party when the sending of the response message to the terminal is stopped.

[0197] In one possible implementation, the aforementioned sending module can be specifically used to send the session confirmation response message to the called party based on the sixth information.

[0198] In the session establishment apparatus provided in this application embodiment, since the session establishment apparatus can perform any of the following based on at least one of the first information, first indication information, second indication information, and third indication information: enabling signaling compression negotiation, enabling signaling compression, enabling signaling decompression, compressing the transmitted signaling, decompressing the received signaling, sending the first indication information to the second network function, sending the second indication information to the second network function, sending the third indication information to the second network function, sending the second indication information to the terminal, and sending the third indication information to the terminal; therefore, in the case of satellite access, the total transmission time of SIP 180 Ring messages and response messages can be shortened, thereby shortening the time of IMS session establishment process.

[0199] The session establishment apparatus provided in this application embodiment can implement all the processes implemented in the above-described first network function side method embodiment and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0200] As shown in Figure 10, this application embodiment also provides a communication device 100, including a processor 101 and a memory 102. The memory 102 stores programs or instructions that can run on the processor 101. For example, when the communication device 100 is a terminal, the program or instructions executed by the processor 101 implement the various steps of the above-described terminal-side method embodiments and achieve the same technical effect. When the communication device 100 is a network-side device, the program or instructions executed by the processor 101 implement the various steps of the above-described first network function-side or second network function-side method embodiments and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0201] 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 above-described terminal-side method embodiments. This terminal embodiment corresponds to the above-described terminal-side method embodiments, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal may be the session establishment device shown in FIG7. Specifically, FIG11 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0202] The terminal 1000 includes, but is not limited to, at least some of the following components: radio frequency unit 1001, network module 1002, audio output unit 1003, input unit 1004, sensor 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, and processor 1010.

[0203] Those skilled in the art will understand that the terminal 1000 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to the processor 1010 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 11 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.

[0204] It should be understood that, in this embodiment, the input unit 1004 may include a graphics processor 10041 and a microphone 10042. The graphics processor 10041 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 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include a touch detection device and a touch controller. Other input devices 10072 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.

[0205] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1001 can transmit it to the processor 1010 for processing; in addition, the radio frequency unit 1001 can send uplink data to the network-side device. Typically, the radio frequency unit 1001 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0206] The memory 1009 can be used to store software programs or instructions, as well as various data. The memory 1009 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 1009 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 1009 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0207] The processor 1010 may include one or more processing units; optionally, the processor 1010 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 the processor 1010.

[0208] The processor 1010 can be used to perform a first operation based on first information. The first information is used to characterize satellite access; the first operation includes any one of the following: enabling signaling compression negotiation, sending first indication information to a first network function, sending first indication information to a second network function, enabling signaling compression, enabling signaling decompression, compressing transmitted signaling, decompressing received signaling, stopping the transmission of a first message indicating ringing, and a first prompt operation to alert the user to ringing at the other end. The first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority.

[0209] In one possible implementation, the first operation may include a first prompt operation. Specifically, the processor 1010 may be used to execute the first prompt operation after the IMS voice or IMS data transmission resources have been reserved.

[0210] In one possible implementation, the processor 1010 can specifically be used to perform a first prompt operation based on second information. The second information includes second indication information. The second indication information is related to at least one of the following: voice priority, data priority, and IMS signaling priority.

[0211] In one possible implementation, the processor 1010 can also be used to determine whether an IMS session has been answered or responded to upon receiving IMS voice or IMS data.

[0212] In one possible implementation, the processor 1010 can also be used to perform a second operation upon receiving IMS voice or IMS data, based on third information. The third information includes at least one of the following: first information, second indication information, and first configuration information. The second operation includes at least one of the following: sending IMS voice or IMS data to prompt the user that the IMS session has been answered or acknowledged by the other end. The second indication information is related to at least one of the following: voice priority, data priority, and IMS signaling priority. The first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

[0213] In one possible implementation, the first indication information may be used to indicate at least one of the following: priority processing of voice, priority processing of data, priority processing of voice over IMS signaling, priority processing of data over IMS signaling, the ability to prioritize voice, the ability to prioritize data, the ability to prioritize voice over IMS signaling, the ability to prioritize data over IMS signaling, signaling compression, signaling decompression, the ability to compress signaling, and the ability to decompress signaling.

[0214] In one possible implementation, the processor 1010 can specifically be used to perform a first operation based on first information and fourth information. The fourth information includes at least one of the following: second indication information sent by a first network function, third indication information sent by a first network function, second indication information sent by a second network function, third indication information sent by a second network function, and first configuration information sent by a second network function. The second indication information is related to at least one of the following: voice priority, data priority, and IMS signaling priority; the third indication information is related to at least one of the following: signaling compression and signaling decompression; the first configuration information is used to configure that the priority of data or voice is higher than the priority of IMS signaling.

[0215] In one possible implementation, the second indication information may be used to indicate at least one of the following: voice priority, voice priority over signaling, IMS data or IMS voice priority, IMS data or IMS voice priority over IMS signaling, the ability to prioritize voice processing, the ability to prioritize data processing, the ability to prioritize voice processing over IMS signaling, and the ability to prioritize data processing over IMS signaling.

[0216] In one possible implementation, the third indication information can be used to indicate at least one of the following: signaling compression, signaling decompression, signaling compression capability, and signaling decompression capability.

[0217] In the terminal provided in this application embodiment, since the terminal can perform any of the following based on the first information used to characterize satellite access: enabling signaling compression negotiation, sending first indication information to a first network function, sending first indication information to a second network function, enabling signaling compression, enabling signaling decompression, compressing the sent signaling, decompressing the received signaling, stopping the transmission of the first message used to indicate ringing, and prompting the user with the first prompt operation for ringing at the other end; therefore, in the case of satellite access, the total transmission time of SIP 180 Ring messages and response messages can be shortened, thereby shortening the time of IMS session establishment.

[0218] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above terminal side method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0219] 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 above-described network-side device method embodiments. This network-side device embodiment corresponds to the above-described first network function side or second network function side method embodiments. All implementation processes and methods of the above method embodiments can be applied to this network-side device embodiment and achieve the same technical effects.

[0220] Specifically, this application also provides a network-side device. As shown in FIG12, the network-side device 1100 includes a processor 1101, a network interface 1102, and a memory 1103. The network-side device may be the session establishment apparatus shown in FIG8 or FIG9. The network interface 1102 is, for example, a Common Public Radio Interface (CPRI).

[0221] Specifically, the network-side device 1100 in this application embodiment further includes: instructions or programs stored in memory 1103 and executable on processor 1101. Processor 1101 calls the instructions or programs in memory 1103 to execute the above-mentioned first network function or second network function execution method and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0222] 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 session establishment method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0223] The processor mentioned above is the processor in the terminal described in the above embodiments. 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.

[0224] 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 session establishment method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0225] 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.

[0226] 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 session establishment method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0227] This application also provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the terminal-side method as described above, and the network-side device can be used to perform the steps of the first network function-side method or the second network function-side method as described above.

[0228] 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.

[0229] 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 includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0230] 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 session establishment method, the method comprising: The terminal executes the first operation based on the first information; Wherein, the first information is used to characterize satellite access; the first operation includes any one of the following: enabling signaling compression negotiation, sending a first indication message to a first network function, sending a first indication message to a second network function, enabling signaling compression, enabling signaling decompression, compressing the sent signaling, decompressing the received signaling, stopping the sending of a first message for indicating ringing, and a first prompt operation for prompting the user to ring the other end. The first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and Internet Protocol Multimedia Subsystem (IMS) signaling priority.

2. The method according to claim 1, wherein, The first operation includes the first prompt operation; The execution of the first operation includes: If the IMS voice or IMS data transmission resources are reserved, execute the first prompt operation.

3. The method according to claim 2, wherein, The execution of the first prompt operation includes: Based on the second information, execute the first prompt operation; The second information includes second indication information; wherein the second indication information is related to at least one of the following: voice priority, data priority, and IMS signaling priority.

4. The method according to any one of claims 1 to 3, wherein, The method further includes: Upon receiving IMS voice or IMS data, the terminal determines that the IMS session has been answered or acknowledged.

5. The method according to any one of claims 1 to 4, wherein, The method further includes: Based on third information, the terminal performs a second operation upon receiving IMS voice or IMS data; The third information includes at least one of the following: the first information, the second indication information, and the first configuration information; the second operation includes at least one of the following: sending IMS voice or IMS data to prompt the user that the IMS session has been answered or received by the other end. The second indication information is related to at least one of the following: voice priority, data priority, IMS signaling priority; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

6. The method according to any one of claims 1 to 5, wherein, The first instruction information is used to indicate at least one of the following: priority processing of voice, priority processing of data, priority processing of voice over IMS signaling, priority processing of data over IMS signaling, the ability to prioritize voice, the ability to prioritize data, the ability to prioritize voice over IMS signaling, the ability to prioritize data over IMS signaling, signaling compression, signaling decompression, and the ability to compress signaling. The ability to decompress signaling.

7. The method according to any one of claims 1 to 6, wherein, The terminal performs a first operation based on the first information, including: The terminal executes the first operation based on the first information and the fourth information; The fourth information includes at least one of the following: second indication information sent by the first network function, third indication information sent by the first network function, second indication information sent by the second network function, third indication information sent by the second network function, and first configuration information sent by the second network function. The second indication information is related to at least one of the following: voice priority, data priority, IMS signaling priority; the third indication information is related to at least one of the following: signaling compression, signaling decompression; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

8. The method according to any one of claims 1 to 7, wherein, The second instruction information is used to indicate at least one of the following: voice priority, voice priority over signaling, IMS data or IMS voice priority, IMS data or IMS voice priority over IMS signaling, the ability to prioritize voice processing, the ability to prioritize data processing, the ability to prioritize voice processing over IMS signaling, and the ability to prioritize data processing over IMS signaling.

9. The method according to any one of claims 1 to 8, wherein, The third instruction information is used to indicate at least one of the following: signaling compression, signaling decompression, signaling compression capability, and signaling decompression capability.

10. A session establishment method, the method comprising: The second network function executes the third operation based on the fifth information; The fifth information includes at least one of the following: first information, first instruction information, second instruction information, and third instruction information; the third operation includes at least one of the following: sending first configuration information to the terminal, sending second instruction information to the terminal, and sending third instruction information to the terminal. Wherein, the first information is used to characterize satellite access; the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, IMS signaling priority; the second indication information is related to at least one of the following: voice priority, data priority, IMS signaling priority; the third indication information is related to at least one of the following: signaling compression, signaling decompression; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

11. The method according to claim 10, wherein, The second network function performs a third operation based on the fifth information, including: Upon receiving the fifth information sent by the first network function, the second network function performs the third operation based on the fifth information.

12. The method according to claim 10 or 11, wherein, The method further includes: The second network function receives the first indication information from the terminal.

13. A session establishment method, the method comprising: The first network function executes the fourth operation based on the sixth information; The sixth information includes at least one of the following: first information, first indication information, second indication information, and third indication information; the fourth operation includes at least one of the following: enabling signaling compression negotiation, enabling signaling compression, enabling signaling decompression, compressing transmitted signaling, decompressing received signaling, sending first indication information to the second network function, sending second indication information to the second network function, sending third indication information to the second network function, sending second indication information to the terminal, and sending third indication information to the terminal. Wherein, the first information is used to characterize satellite access; the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, IMS signaling priority; the second indication information is related to at least one of the following: voice priority, data priority, IMS signaling priority; the third indication information is related to at least one of the following: signaling compression, signaling decompression.

14. The method according to claim 13, wherein, The method further includes: Based on the sixth information, the first network function stops sending at least one of the first message and the response message to the terminal; The first message is used to indicate ringing; the response message is used to indicate a response from the other end.

15. The method according to claim 14, wherein, The method further includes: If the first network function stops sending the response message to the terminal, it sends a session confirmation response message to the called party.

16. The method according to claim 15, wherein, The first network function sends a session confirmation response message to the called party, including: Based on the sixth information, the first network function sends the session confirmation response message to the called party.

17. A session establishment apparatus, the apparatus comprising: First processing module; The first processing module is configured to perform a first operation based on the first information; Wherein, the first information is used to characterize satellite access; the first operation includes any one of the following: enabling signaling compression negotiation, sending a first indication message to a first network function, sending a first indication message to a second network function, enabling signaling compression, enabling signaling decompression, compressing the sent signaling, decompressing the received signaling, stopping the sending of a first message for indicating ringing, and a first prompt operation for prompting the user to ring the other end. The first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, and IMS signaling priority.

18. The apparatus according to claim 17, wherein, The first operation includes the first prompt operation; The first processing module is specifically used to execute the first prompt operation when the transmission resources for IMS voice or IMS data are reserved.

19. The apparatus according to claim 18, wherein, The first processing module is specifically used to execute the first prompt operation based on the second information; The second information includes second indication information; wherein the second indication information is related to at least one of the following: voice priority, data priority, and IMS signaling priority.

20. The apparatus according to any one of claims 17 to 19, wherein, The first processing module is also used to determine whether an IMS session has been answered or received when IMS voice or IMS data is received.

21. The apparatus according to any one of claims 17 to 20, wherein, The first processing module is further configured to perform a second operation based on third information, upon receiving IMS voice or IMS data; The third information includes at least one of the following: the first information, the second indication information, and the first configuration information; the second operation includes at least one of the following: sending IMS voice or IMS data to prompt the user that the IMS session has been answered or received by the other end. The second indication information is related to at least one of the following: voice priority, data priority, IMS signaling priority; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

22. The apparatus according to any one of claims 17 to 21, wherein, The first instruction information is used to indicate at least one of the following: priority processing of voice, priority processing of data, priority processing of voice over IMS signaling, priority processing of data over IMS signaling, the ability to prioritize voice, the ability to prioritize data, the ability to prioritize voice over IMS signaling, the ability to prioritize data over IMS signaling, signaling compression, signaling decompression, and the ability to compress signaling. The ability to decompress signaling.

23. The apparatus according to any one of claims 17 to 22, wherein, The first processing module is specifically used to execute the first operation based on the first information and the fourth information; The fourth information includes at least one of the following: second indication information sent by the first network function, third indication information sent by the first network function, second indication information sent by the second network function, third indication information sent by the second network function, and first configuration information sent by the second network function. The second indication information is related to at least one of the following: voice priority, data priority, IMS signaling priority; the third indication information is related to at least one of the following: signaling compression, signaling decompression; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

24. The apparatus according to any one of claims 17 to 23, wherein, The second instruction information is used to indicate at least one of the following: voice priority, voice priority over signaling, IMS data or IMS voice priority, IMS data or IMS voice priority over IMS signaling, the ability to prioritize voice processing, the ability to prioritize data processing, the ability to prioritize voice processing over IMS signaling, and the ability to prioritize data processing over IMS signaling.

25. The apparatus according to any one of claims 17 to 24, wherein, The third instruction information is used to indicate at least one of the following: signaling compression, signaling decompression, signaling compression capability, and signaling decompression capability.

26. A session establishment apparatus, the apparatus comprising: Second processing module; The second processing module is used to perform a third operation based on the fifth information; The fifth information includes at least one of the following: first information, first instruction information, second instruction information, and third instruction information; the third operation includes at least one of the following: sending first configuration information to the terminal, sending second instruction information to the terminal, and sending third instruction information to the terminal. Wherein, the first information is used to characterize satellite access; the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, IMS signaling priority; the second indication information is related to at least one of the following: voice priority, data priority, IMS signaling priority; the third indication information is related to at least one of the following: signaling compression, signaling decompression; the first configuration information is used to configure the priority of data or voice to be higher than the priority of IMS signaling.

27. The apparatus according to claim 26, wherein, The second processing module is specifically used to perform the third operation based on the fifth information received from the first network function.

28. The apparatus according to claim 26 or 27, wherein, The device further includes: a receiving module; The receiving module is used to receive the first indication information from the terminal.

29. A session establishment apparatus, the apparatus comprising: Third processing module; The third processing module is used to perform the fourth operation based on the sixth information; The sixth information includes at least one of the following: first information, first indication information, second indication information, and third indication information; the fourth operation includes at least one of the following: enabling signaling compression negotiation, enabling signaling compression, enabling signaling decompression, compressing transmitted signaling, decompressing received signaling, sending first indication information to the second network function, sending second indication information to the second network function, sending third indication information to the second network function, sending second indication information to the terminal, and sending third indication information to the terminal. Wherein, the first information is used to characterize satellite access; the first indication information is related to at least one of the following: signaling compression, signaling decompression, voice priority, data priority, IMS signaling priority; the second indication information is related to at least one of the following: voice priority, data priority, IMS signaling priority; the third indication information is related to at least one of the following: signaling compression, signaling decompression.

30. The apparatus according to claim 29, wherein, The device further includes: a transmitting module; The sending module is configured to stop sending at least one of the first message and the response message to the terminal based on the sixth information; The first message is used to indicate ringing; the response message is used to indicate a response from the other end.

31. The apparatus according to claim 30, wherein, The sending module is further configured to send a session confirmation response message to the called party when the sending of the response message to the terminal is stopped.

32. The apparatus according to claim 31, wherein, The sending module is specifically used to send the session confirmation response message to the called party based on the sixth information.

33. 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 session establishment method as claimed in any one of claims 1 to 9.

34. 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 session establishment method as claimed in any one of claims 10 to 12, or implementing the steps of the session establishment method as claimed in any one of claims 13 to 16.

35. A readable storage medium storing a program or instructions that, when executed by a processor, implement the steps of the session establishment method as claimed in any one of claims 1 to 9, or the steps of the session establishment method as claimed in any one of claims 10 to 12, or the steps of the session establishment method as claimed in any one of claims 13 to 16.

36. A computer program product, said computer program product being executed by at least one processor to implement the steps of the session establishment method as claimed in any one of claims 1 to 9, or to implement the steps of the session establishment method as claimed in any one of claims 10 to 12, or to implement the steps of the session establishment method as claimed in any one of claims 13 to 16.

37. An electronic device comprising being configured to perform the steps of the session establishment method as claimed in any one of claims 1 to 9, or the steps of the session establishment method as claimed in any one of claims 10 to 12, or the steps of the session establishment method as claimed in any one of claims 13 to 16.

38. A chip comprising 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 session establishment method as claimed in any one of claims 1 to 9, or the steps of the session establishment method as claimed in any one of claims 10 to 12, or the steps of the session establishment method as claimed in any one of claims 13 to 16.

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