Satellite call flow establishment method and device and nonvolatile storage medium

Abstract

The invention discloses a satellite call flow establishment method and device and a nonvolatile storage medium. The method comprises the following steps: a network element of a core network acquires call establishment information sent by a calling side terminal through a first access network, and the first access network comprises a communication satellite; the network element of the core network determines a called side terminal according to the call establishment information, and determines a beam where the called side terminal resides; and the network element of the core network sends a paging instruction to a second access network corresponding to the called side terminal under the condition that the network element of the core network does not complete wireless access bearer allocation with the calling side terminal, and the second access network comprises a communication satellite. According to the method and the device, the technical problem of poor user experience caused by long time delay of a satellite communication call establishment process in related technologies is solved.

Description

Technical Field

[0001] The present application relates to the field of satellite communications, and more specifically, to a method and device for establishing a satellite call process, and a non-volatile storage medium. Background Art

[0002] Satellite communication systems, as a widely-covered communications network, enable wireless communication between any two points on the Earth's surface. They are suitable for areas with limited terrestrial infrastructure or harsh geographical environments, meeting user communication needs. However, the existing satellite communication call establishment process suffers from significant latency, resulting in a poor user experience.

[0003] To address the above-mentioned problems, no effective solutions have been proposed so far. Summary of the Invention

[0004] The embodiments of the present application provide a method, apparatus, and non-volatile storage medium for establishing a satellite call process, so as to at least solve the technical problem of poor user experience caused by the long delay in the satellite communication call establishment process in the related art.

[0005] According to one aspect of an embodiment of the present application, a method for establishing a satellite call process is provided, including: a core network network element obtains call establishment information sent by a calling side terminal through a first access network, wherein the first access network includes a communication satellite; the core network network element determines the called side terminal based on the call establishment information, and determines the beam in which the called side terminal resides; the core network network element sends a paging instruction to a second access network corresponding to the called side terminal without completing wireless access bearer allocation with the calling side terminal, wherein the second access network includes a communication satellite.

[0006] Optionally, after sending a paging instruction to the second access network corresponding to the called side terminal, the method also includes: determining a preset duration; if no response information sent by the calling side terminal is received within the preset duration, terminating the call establishment process of the called side terminal, wherein the response information is used to indicate that the wireless access bearer allocation of the calling side terminal is completed.

[0007] Optionally, terminating the call establishment process of the called side terminal includes: after a preset time period, when the core network network element receives a paging response message sent by the called side terminal, the core network network element discards the paging response message, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0008] Optionally, terminating the call establishment process of the called side terminal includes: after a preset time period, when the core network network element has sent an authentication request message to the called side terminal, the core network network element discards the authentication response message sent by the called side terminal in response to the authentication request message, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0009] Optionally, terminating the call establishment process of the called side terminal includes: after a preset time period, when the core network network element has sent a security mode command message to the called side terminal, the core network network element discards the security mode command response message sent by the called side terminal in response to the security mode command message, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0010] Optionally, terminating the call establishment process of the called side terminal includes: after a preset time period, when the core network network element has sent a call establishment message to the called side terminal, the core network network element discards the call establishment response message sent by the called side terminal in response to the call establishment message, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0011] Optionally, terminating the call establishment process of the called side terminal includes: after a preset time period, when the core network network element completes the wireless access bearer allocation process of the called side terminal, the core network network element discards the ringing message sent by the called side terminal, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0012] According to another aspect of an embodiment of the present application, a satellite call process establishment device is also provided, which is suitable for use in a core network network element, and includes: a first processing module, used to obtain call establishment information sent by a calling side terminal through a first access network, wherein the first access network includes a communication satellite; a second processing module, used to determine the called side terminal based on the call establishment information, and determine the beam in which the called side terminal resides; a third processing module, used to send a paging instruction to a second access network corresponding to the called side terminal without completing the wireless access bearer allocation with the calling side terminal, wherein the second access network includes a communication satellite.

[0013] According to another aspect of an embodiment of the present application, a non-volatile storage medium is provided, in which a program is stored. When the program is running, the device where the non-volatile storage medium is located is controlled to execute a satellite call process establishment method.

[0014] According to another aspect of an embodiment of the present application, an electronic device is provided, including: a memory and a processor, wherein the processor is configured to run a program stored in the memory, wherein the satellite call process establishment method is executed when the program is run.

[0015] According to another aspect of an embodiment of the present application, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the method for establishing a satellite call process is implemented.

[0016] In an embodiment of the present application, a core network network element is used to obtain call establishment information sent by a calling side terminal through a first access network, wherein the first access network includes a communication satellite; the core network network element determines the called side terminal based on the call establishment information, and determines the beam on which the called side terminal resides; the core network network element sends a paging instruction to a second access network corresponding to the called side terminal without completing radio access bearer allocation with the calling side terminal, wherein the second access network includes a communication satellite. By initiating a called party paging process in advance after the core network network element receives the calling party Setup message, the calling party RAB assignment and the called party paging are processed in parallel, thereby achieving the purpose of accelerating the call establishment process, thereby achieving the technical effect of reducing the delay of the call establishment process, and further solving the technical problem of poor user experience caused by the long delay of the satellite communication call establishment process in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 This is a schematic diagram of a traditional Tiantong satellite terminal call establishment process provided based on relevant technologies;

[0019] Figure 2 is a structural diagram of a computer terminal provided according to an embodiment of the present application;

[0020] Figure 3 1 is a flow chart of a method for establishing a satellite call process according to an embodiment of the present application;

[0021] Figure 4 1 is a schematic diagram of a call establishment process of a Tiantong satellite terminal provided according to an embodiment of the present application;

[0022] Figure 5 is a schematic diagram of a timer start process provided according to an embodiment of the present application;

[0023] Figure 6 It is a structural diagram of a satellite call process establishment device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] In order to better understand the embodiments of the present application, the technical terms involved in the embodiments of the present application are explained as follows:

[0027] Radio Access Bearer Assignment (RAB): In mobile communication systems, RAB allocation is a critical network resource management process. A RAB is a logical connection used to carry user data (such as voice, video, or data packets). It defines the radio bearer characteristics between a mobile terminal (UE) and the radio access network (RAN). When a user initiates a service request, the core network (CN) initiates the RAB assignment process to allocate appropriate radio resources for the user's specific service needs.

[0028] In the related art, the call establishment process of Tiantong satellite terminal is as follows: Figure 1 As shown, including: completing RAB allocation between the calling terminal and the core network ( Figure 1 In the process 1 to 21), the core network initiates the called paging process ( Figure 1 22 to 28), the called terminal and the core network perform authentication interaction, including receiving the authentication request, sending the authentication response, and establishing and confirming the security mode ( Figure 1The core network sends a call confirmation to the called GSC and starts the RAB assignment process to complete the initial establishment of the call ( Figure 1 In the process 37 to 44), the called terminal sends a ringing message, the core network notifies the calling terminal, and the ringing process begins ( Figure 1 In the process 45 to 48), after the called terminal picks up the phone, the core network interacts with the calling and called terminals to confirm the connection until the call is established ( Figure 1 In the process 49 to 56), the calling terminal and the called terminal complete the connection confirmation and enter the call state ( Figure 1 (57) in the middle process.

[0029] The specific process includes:

[0030] 1: The calling terminal sends an RRC CONNECTION REQUEST message to the calling GSC (first access network);

[0031] 2: After receiving the link establishment request message, the calling GSC sends an RRC connection setup message RRC CONNECTION SETUP to the calling terminal and passes the radio link parameters to the calling terminal;

[0032] 3: After receiving the link setup message, the calling terminal establishes a dedicated signaling connection according to the radio link parameter indication, and then sends an RRC CONNECTION SETUP COMPLETE message to the calling GSC;

[0033] 4: After the calling terminal sends the link establishment completion message, it immediately sends an initial direct transfer message INITIAL DIRECTTRANSFER to the calling GSC, which carries the CM Service Request message of the NAS layer;

[0034] 5: After receiving the initial direct transfer message, the calling GSC starts to establish the Iu connection and then sends the INITIAL UE MESSAGE to the core network CN;

[0035] 6: The core network initiates an authentication request and sends a DIRECT TRANSFER message to the calling GSC, which carries the MM layer authentication request message Authentication Request;

[0036] 7: The calling GSC sends the authentication message to the calling terminal through the downlink direct transfer message DOWNLINK DIRECT TRANSFER;

[0037] 8: The calling terminal sends an UPLINK DIRECT TRANSFER message to the calling GSC, which carries the NAS layer authentication response message Authentication Response;

[0038] 9: The calling GSC sends the authentication response message Authentication Response to the core network CN via DIRECT TRANSFER.

[0039] 10: After receiving the authentication response message and successful authentication, the core network initiates the security mode control process and sends SECURITY MODE COMMAND to the calling GSC;

[0040] 11: The calling GSC sends the security mode command message SECURITY MODE COMMAND to the calling terminal;

[0041] 12: The calling terminal replies with a security mode complete message "SECURITY MODE COMPLETE" to the calling GSC;

[0042] 13: The calling GSC sends SECURITY MODE COMPLETE to the core network CN to complete the security mode control process;

[0043] 14: The calling terminal sends an UPLINK DIRECT TRANSFER message to the calling GSC, which carries the NAS layer call message Setup.

[0044] 15: The calling GSC sends the call message Setup to the core network CN via DIRECT TRANSFER.

[0045] 16: The core network responds that the call is in progress and sends a DIRECT TRANSFER message to the calling GSC, which carries the CC layer message Call Proceeding;

[0046] 17: The calling GSC sends the call proceeding message "Call Proceeding" to the calling terminal through the downlink direct transfer message "DOWNLINK DIRECT TRANSFER";

[0047] 18: The core network initiates the RAB assignment process and sends a RAB ASSIGNMENT REQUEST to the calling GSC;

[0048] 19: The calling GSC sends the RB link establishment message RADIO BEARER SETUP to the calling terminal;

[0049] 20: The calling terminal replies with the RB link establishment completion message "RADIO BEARER SETUP COMPLETE" to the calling GSC;

[0050] 21: The calling GSC sends a RAB ASSIGNMENT RESPONSE to the core network CN to complete the RAB assignment process;

[0051] 22: After the core network finds the beam where the called party resides, it sends a PAGE to the called party's GSC (second access network);

[0052] 23: The called GSC sends a paging message Paging Type 4 to the called terminal;

[0053] 24: After receiving the paging message, the called terminal sends an RRC Connection Request message to the called GSC;

[0054] 25: After receiving the connection request message, the called GSC sends an RRC connection setup message RRC Connection Setup to the called terminal and passes the radio link parameters to the called terminal;

[0055] 26: After receiving the link setup message, the called terminal establishes a dedicated signaling connection according to the radio link parameter indication, and then sends an RRC Connection Setup Complete message to the called GSC;

[0056] 27: After the called terminal sends the link establishment completion message, it immediately sends an Initial Direct Transfer message to the called GSC, which carries the CM Service Request message of the NAS layer.

[0057] 28: After receiving the initial direct transfer message, the called GSC starts to establish the Iu connection and then sends the INITIAL UEMESSAGE message to the core network CN;

[0058] 29: The core network initiates an authentication request and sends a DIRECT TRANSFER message to the called GSC, which carries the MM layer authentication request message Authentication Request.

[0059] 30: The called GSC sends the authentication message to the called terminal via the Downlink Direct Transfer message;

[0060] 31: The called terminal sends an Uplink Direct Transfer message to the called GSC, which carries the NAS layer Authentication Response message.

[0061] 32: The called GSC sends the authentication response message Authentication Response to the core network CN via DIRECT TRANSFER.

[0062] 33: After receiving the authentication response message and successful authentication, the core network initiates the security mode control process and sends SECURITY MODE COMMAND to the called GSC;

[0063] 34: The called GSC sends a security mode command message SECURITY MODE COMMAND to the called terminal;

[0064] 35: The called terminal replies with a security mode complete message "SECURITY MODE COMPLETE" to the called GSC;

[0065] 36: The called GSC sends SECURITY MODE COMPLETE to the core network CN to complete the security mode control process;

[0066] 37: The core network CN sends the call message Setup via DIRECT TRANSFER to the called GSC;

[0067] 38: The called GSC sends a Downlink Direct Transfer message to the called terminal, which carries the CC layer call message Setup.

[0068] 39: The called terminal sends an Uplink Direct Transfer message to the called GSC, which carries the NAS layer call response message Call Confirmed.

[0069] 40: The called GSC sends a call response message "Call Confirmed" via DIRECT TRANSFER to the core network CN.

[0070] 41: The core network initiates the RAB assignment process and sends a RAB ASSIGNMENT REQUEST to the called GSC;

[0071] 42: The called GSC sends an RB Setup message to the called terminal;

[0072] 43: The called terminal replies with the RB Setup Complete message to the called GSC.

[0073] 44: The called GSC sends a RAB ASSIGNMENT RESPONSE to the core network CN to complete the RAB assignment process;

[0074] 45: The called terminal sends an Uplink Direct Transfer message to the called GSC, which carries the NAS layer Alerting message.

[0075] 46: The called GSC sends the Alerting message to the core network CN via the DIRECT TRANSFER.

[0076] 47: After receiving the ringing message from the called terminal, the core network sends a DIRECT TRANSFER message to the calling GSC, which carries the CC layer ringing message Alerting;

[0077] 48: The calling GSC sends the Alerting message to the calling terminal through the downlink direct transfer message DOWNLINK DIRECT TRANSFER;

[0078] 49: After the called terminal picks up the phone, it sends an uplink direct transfer message UPLINK DIRECT TRANSFER to the called GSC, which carries the NAS layer off-hook message Connect;

[0079] 50: The called GSC sends the off-hook message Connect via the DIRECT TRANSFER message to the core network CN.

[0080] 51: After receiving the off-hook message from the called party, the core network sends a DIRECT TRANSFER message to the calling GSC, which carries the CC layer off-hook message Connect;

[0081] 52: The calling GSC sends the off-hook message Connect to the calling terminal through the downlink direct transfer message DOWNLINK DIRECT TRANSFER;

[0082] 53: The calling terminal sends an UPLINK DIRECT TRANSFER message to the GSC, which carries the NAS layer off-hook confirmation message Connect ACK.

[0083] 54: The calling GSC sends the off-hook confirmation message Connect ACK to the core network CN via the DIRECT TRANSFER message.

[0084] 55: After receiving the off-hook confirmation message from the calling terminal, the core network sends a DIRECT TRANSFER message to the called GSC, which carries the CC layer off-hook confirmation message Connect ACK;

[0085] 56: The called GSC sends an off-hook confirmation message Connect ACK to the called terminal via the downlink direct transfer message DOWNLINK DIRECT TRANSFER.

[0086] 57: The calling terminal and the called terminal start the conversation process.

[0087] Since in the above process, the process of the calling side initiating a call and the process of the called side initiating paging are serial, that is, the RAB allocation is completed between the calling terminal and the core network ( Figure 1 After the process 1 to 21) the called party paging process is initiated ( Figure 1 In the process 22 to 27), in fact, the initiation of the paging process on the called side does not depend on the completion of the RAB assignment on the calling side. The unnecessary waiting for the RAB assignment on the calling side causes a greater delay in the call establishment process in the Tiantong satellite system, reducing the user experience.

[0088] In order to solve the above problems, relevant solutions are provided in the embodiments of the present application, which are described in detail below.

[0089] According to an embodiment of the present application, a method embodiment of a method for establishing a satellite call process is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0090] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Figure 2 The hardware structure block diagram of a computer terminal for implementing a satellite call process establishment method is shown. Figure 2 As shown, the computer terminal 20 may include one or more (illustrated as 202a, 202b, ..., 202n in the figure) processors 202 (the processor 202 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 204 for storing data, and a transmission device 206 for communication functions. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of the BUS bus), a network interface, a power supply and / or a camera. It will be understood by those skilled in the art that Figure 2 The structure shown is only for illustration and does not limit the structure of the above electronic device. Figure 2 More or fewer components than shown, or with Figure 2 Different configurations shown.

[0091] It should be noted that the one or more processors 202 and / or other data processing circuits described above may generally be referred to herein as "data processing circuitry." The data processing circuitry may be embodied in whole or in part as software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuitry may be a single, independent processing module, or may be incorporated in whole or in part into any of the other components of the computer terminal 20. As described in the embodiments of the present application, the data processing circuitry serves as a processor control (e.g., selection of a variable resistor terminal path connected to an interface).

[0092] Memory 204 can be used to store software programs and modules for application software, such as the program instructions / data storage device corresponding to the satellite call process establishment method described in the embodiments of the present application. Processor 202 executes the software programs and modules stored in memory 204 to perform various functional applications and data processing, thereby implementing the satellite call process establishment method described above. Memory 204 can include high-speed random access memory (RAM) and non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 204 can further include memory located remotely from processor 202, which can be connected to computer terminal 20 via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network (LAN), a mobile communication network, and combinations thereof.

[0093] Transmission device 206 is configured to receive or transmit data via a network. A specific example of the aforementioned network may include a wireless network provided by the communications provider of computer terminal 20. In one embodiment, transmission device 206 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In another embodiment, transmission device 206 may be a radio frequency (RF) module configured to communicate with the Internet wirelessly.

[0094] The display may be, for example, a touch screen liquid crystal display (LCD) that enables a user to interact with a user interface of the computer terminal 20 .

[0095] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

[0096] Exemplarily, the communication system used in the embodiments of the present application may include a network device, which may be a device that communicates with a terminal device (or referred to as a communication terminal, terminal). The network device can provide communication coverage for a specific geographical area and can communicate with terminal devices located in the coverage area. Optionally, the network device can be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

[0097] The communication system also includes at least one terminal device within the coverage of the network device. As used herein, "terminal device" includes but is not limited to being connected via a wired line, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection; and / or another data connection / network; and / or via a wireless interface, such as, for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and / or a device of another terminal device configured to receive / send communication signals; and / or an Internet of Things (IoT) device. A terminal device configured to communicate via a wireless interface may be referred to as a "wireless communication terminal," "wireless terminal," or "mobile terminal." Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communications capabilities; PDAs that may include radiotelephones, pagers, Internet / Intranet access, web browsers, organizers, calendars, and / or Global Positioning System (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A terminal device may be referred to as an access terminal, user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, etc.

[0098] Optionally, device-to-device (D2D) communication can be performed between terminal devices.

[0099] Optionally, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

[0100] In the above operating environment, the embodiment of the present application provides a method for establishing a satellite call process, such as Figure 3 As shown, the method includes the following steps:

[0101] Step S302: The core network element obtains call establishment information sent by the calling terminal through a first access network, wherein the first access network includes a communication satellite.

[0102] Optionally, Figure 4 A call establishment process of a Tiantong satellite terminal of the present application is shown as follows: Figure 4 As shown, before the core network element obtains the call establishment information sent by the calling terminal through the first access network, the process further includes:

[0103] 1. The calling terminal sends an RRC (Radio Resource Control) connection request message RRCCONNECTIONREQUEST to the calling GSC (i.e., the first access network);

[0104] 2. After receiving the link establishment request message, the calling GSC sends an RRC connection establishment message RRC CONNECTION SETUP (Radio Resource Control Connection Establishment) to the calling terminal, passing the radio link parameters to the calling terminal;

[0105] 3. After receiving the link establishment message, the calling terminal establishes a dedicated signaling connection according to the radio link parameter indication, and then sends an RRC CONNECTION SETUP COMPLETE message to the calling GSC;

[0106] 4. After the calling terminal sends the link establishment completion message, it immediately sends an initial direct transfer message INITIAL DIRECTTRANSFER to the calling GSC, which carries the NAS layer CM Service Request message CM Service Request;

[0107] 5. After receiving the initial direct transfer message, the calling GSC starts to establish an Iu connection (Interface-U connection) and then sends an INITIAL UE MESSAGE to the core network CN;

[0108] 6. The core network (network element) initiates an authentication request and sends a DIRECT TRANSFER message to the calling GSC, which carries the MM layer authentication request message Authentication Request;

[0109] 7. The calling GSC sends the authentication message to the calling terminal via the downlink direct transfer message DOWNLINK DIRECT TRANSFER;

[0110] 8. The calling terminal sends an UPLINK DIRECT TRANSFER message to the calling GSC, which carries the NAS layer authentication response message Authentication Response;

[0111] 9. The calling GSC sends the authentication response message Authentication Response to the core network CN via DIRECT TRANSFER.

[0112] 10. After receiving the authentication response message and successful authentication, the core network initiates the security mode control process and sends SECURITY MODE COMMAND to the calling GSC;

[0113] 11. The calling GSC sends a security mode command message SECURITY MODE COMMAND to the calling terminal;

[0114] 12. The calling terminal replies with a security mode complete message "SECURITY MODE COMPLETE" to the calling GSC;

[0115] 13. The calling GSC sends SECURITY MODE COMPLETE to the core network CN to complete the security mode control process;

[0116] 14. The calling terminal sends an UPLINK DIRECT TRANSFER message to the calling GSC, which carries the NAS layer call message Setup.

[0117] Alternatively, as Figure 4 As shown in step 15, the core network element obtains the call setup information sent by the calling terminal through the first access network, including: the calling GSC (i.e., the first access network) carries the call message Setup (i.e., call setup information) through DIRECT TRANSFER and sends it to the core network CN (i.e., the core network element).

[0118] Step S304: The core network element determines the called terminal according to the call establishment information, and determines the beam where the called terminal resides.

[0119] Alternatively, as Figure 4As shown in step 16, the core network network element determines the called side terminal based on the call establishment information, and determines the beam in which the called side terminal resides, including: after the core network network element receives the calling side Setup message (call establishment information, including key information required for call establishment, such as the identifier of the called terminal, etc.), it determines the called side terminal through the call establishment information, determines the beam in which the called side terminal resides by searching, and sends a RANNAP (Radio Access Network Application Part message) message PAGE (packet paging message) to the called GSC (i.e., the second access network).

[0120] Step S306: The core network element sends a paging instruction to a second access network corresponding to the called terminal when the radio access bearer allocation with the calling terminal is not completed, wherein the second access network includes a communication satellite.

[0121] Alternatively, as Figure 4 As shown in step 17-44, after the calling side sends the call establishment information, the core network network element sends a paging instruction to the second access network corresponding to the called side terminal. The radio access bearer allocation process after the calling side sends the call establishment information and the called side terminal initiates the Paging (called party paging) process simultaneously, instead of waiting for the core network and the calling terminal to complete the RAB assignment process before initiating the called party paging, which saves connection establishment time.

[0122] Optionally, Figure 4 Steps 17-44 specifically include:

[0123] 17. The called GSC sends a paging message Paging Type 4 to the called terminal;

[0124] 18. The core network responds that the call is in progress and sends a DIRECT TRANSFER message to the calling GSC, which carries the CC layer message Call Proceeding;

[0125] 19. After receiving the paging message, the called terminal sends an RRC Connection Request message to the called GSC;

[0126] 20. The calling GSC sends a call proceeding message to the calling terminal via a downlink direct transfer message DOWNLINK DIRECT TRANSFER.

[0127] 21. After receiving the connection establishment request message, the called GSC sends an RRC connection establishment message RRC Connection Setup to the called terminal and passes the radio link parameters to the called terminal;

[0128] 22. The core network initiates the RAB assignment process and sends a RAB ASSIGNMENT REQUEST to the calling GSC;

[0129] 23. After receiving the connection setup message, the called terminal establishes a dedicated signaling connection according to the radio link parameter indication, and then sends an RRC Connection Setup Complete message to the called GSC;

[0130] 24. The calling GSC sends the RB link establishment message RADIO BEARER SETUP to the calling terminal;

[0131] 25. After the called terminal sends the link establishment completion message, it immediately sends an Initial Direct Transfer message to the called GSC, which carries the CM Service Request message of the NAS layer.

[0132] 26. The calling terminal replies with the RB link establishment completion message "RADIO BEARER SETUP COMPLETE" to the calling GSC;

[0133] 27 The calling GSC sends a RAB ASSIGNMENT RESPONSE to the core network CN to complete the RAB assignment process;

[0134] 28. After receiving the initial direct transfer message, the called GSC starts to establish an Iu connection and then sends an INITIAL UEMESSAGE message to the core network CN;

[0135] 29. The core network initiates an authentication request and sends a DIRECT TRANSFER message to the called GSC, which carries the MM layer authentication request message Authentication Request;

[0136] 30. The called GSC sends the authentication message to the called terminal via the Downlink Direct Transfer message;

[0137] 31. The called terminal sends an Uplink Direct Transfer message to the called GSC, which carries an NAS layer Authentication Response message.

[0138] 32. The called GSC sends the authentication response message Authentication Response to the core network CN via a direct transfer.

[0139] 33. After receiving the authentication response message and successful authentication, the core network initiates the security mode control process and sends SECURITY MODE COMMAND to the called GSC;

[0140] 34. The called GSC sends a security mode command message SECURITY MODE COMMAND to the called terminal;

[0141] 35. The called terminal replies with a security mode complete message "SECURITY MODE COMPLETE" to the called GSC;

[0142] 36. The called GSC sends SECURITY MODE COMPLETE to the core network CN to complete the security mode control process;

[0143] 37. The core network CN sends the call message Setup to the called GSC via DIRECT TRANSFER.

[0144] 38. The called GSC sends a Downlink Direct Transfer message to the called terminal, which carries the CC layer call message Setup.

[0145] 39. The called terminal sends an Uplink Direct Transfer message to the called GSC, which carries the NAS layer call response message Call Confirmed.

[0146] 40. The called GSC sends a call response message, Call Confirmed, to the core network CN via a DIRECT TRANSFER message.

[0147] 41. The core network initiates the RAB assignment process and sends a RAB ASSIGNMENT REQUEST to the called GSC;

[0148] 42. The called GSC sends an RB Setup message to the called terminal.

[0149] 43. The called terminal replies with the RB Setup Complete message to the called GSC.

[0150] 44. The called GSC sends a RAB ASSIGNMENT RESPONSE to the core network CN to complete the RAB assignment process;

[0151] Alternatively, as Figure 4As shown in steps 45-57, after the RAB assignment on the calling side is completed and the paging on the called side is successfully completed, the process also includes the called terminal sending a ringing message, the core network notifying the calling terminal, and the ringing process begins. After the called terminal picks up the phone, the core network interacts with the calling and called terminals to confirm the connection until the call is established. The calling and called terminals complete the connection confirmation and enter the call state:

[0152] 45. The called terminal sends an Uplink Direct Transfer message to the called GSC, which carries the NAS layer Alerting message.

[0153] 46. The called GSC sends the Alerting message to the core network CN via the DIRECT TRANSFER message.

[0154] 47. After receiving the ringing message from the called terminal, the core network sends a DIRECT TRANSFER message to the calling GSC, which carries the CC layer ringing message Alerting;

[0155] 48. The calling GSC sends the Alerting message to the calling terminal via the downlink direct transfer message DOWNLINK DIRECT TRANSFER;

[0156] 49. After the called terminal picks up the phone, it sends an uplink direct transfer message UPLINK DIRECT TRANSFER to the called GSC, which carries the NAS layer off-hook message Connect.

[0157] 50. The called GSC sends the off-hook message Connect via the DIRECT TRANSFER message to the core network CN.

[0158] 51. After receiving the off-hook message from the called party, the core network sends a DIRECT TRANSFER message to the calling GSC, which carries the CC layer off-hook message Connect;

[0159] 52. The calling GSC sends the off-hook message Connect to the calling terminal via the downlink direct transfer message DOWNLINK DIRECT TRANSFER;

[0160] 53. The calling terminal sends an UPLINK DIRECT TRANSFER message to the GSC, which carries the NAS layer off-hook confirmation message Connect ACK.

[0161] 54. The calling GSC sends the off-hook confirmation message Connect ACK to the core network CN via the DIRECT TRANSFER message.

[0162] 55. After receiving the off-hook confirmation message from the calling terminal, the core network sends a DIRECT TRANSFER message to the called GSC, which carries the CC layer off-hook confirmation message Connect ACK;

[0163] 56. The called GSC sends an off-hook confirmation message Connect ACK to the called terminal via a downlink direct transfer message DOWNLINK DIRECT TRANSFER.

[0164] 57. The calling terminal and the called terminal begin the call process.

[0165] In the technical solution provided in step S306, after sending the paging instruction to the second access network corresponding to the called side terminal, the method also includes: determining a preset duration; if no response information sent by the calling side terminal is received within the preset duration, terminating the call establishment process of the called side terminal, wherein the response information is used to indicate that the wireless access bearer allocation of the calling side terminal is completed.

[0166] Optionally, Figure 5 A schematic diagram showing a process of starting a timer (timing is a preset duration) (processes 1-22 and Figure 4 Processes 1-22 correspond to, processes 23-43 correspond to Figure 4 23, 25, 28-46 correspond to each other, which will not be repeated here), such as Figure 5 As shown, after sending the paging instruction to the second access network corresponding to the called terminal, the core network sets the protection timer T1 in the RAB assignment process of the calling side. If T1 times out and no response information is received from the calling side (used to indicate that the radio access bearer allocation of the calling terminal is completed), it means that the RAB assignment on the calling side is abnormal and the abnormal processing on the calling side needs to be executed. Since the process of initiating a call on the calling side and the process of initiating paging on the called side are parallel in this application, the core network has sent the RANNAP message PAGE to the called GSC at this time. The core network not only needs the original abnormal processing on the calling side, but also needs to perform abnormal processing on the called side, that is, terminate the call establishment process of the called terminal.

[0167] As an optional implementation method, terminating the call establishment process of the called side terminal includes: after a preset time period, when the core network network element receives a paging response message sent by the called side terminal, the core network network element discards the paging response message, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0168] Optionally, if after T1 times out (i.e., after a preset duration), the core network element receives a Paging Response message (paging response message) sent by the called terminal, the core network discards the message, releases the terminal (called terminal) RRC connection and other resources through the second access network, terminates the call establishment process, and does not initiate called authentication and subsequent called side processes.

[0169] As an optional implementation method, terminating the call establishment process of the called side terminal includes: after a preset time period, when the core network network element has sent an authentication request message to the called side terminal, the core network network element discards the authentication response message sent by the called side terminal in response to the authentication request message, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0170] Optionally, if the core network has received the Paging Response message from the called side and has sent an Authentication Request message (authentication request message) when T1 times out, then when the core network subsequently receives the Authentication Response message (authentication response message) from the called side, it discards the message, releases the terminal RRC connection and other resources through the second access network, terminates the call establishment process, and does not initiate the called SMC and subsequent called side processes.

[0171] As an optional implementation method, terminating the call establishment process of the called side terminal includes: after a preset time period, when the core network network element has sent a security mode command message to the called side terminal, the core network network element discards the security mode command response message sent by the called side terminal in response to the security mode command message, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0172] Optionally, if the core network has received the Authentication Response message from the called party and has sent an SMC message (security mode command message) when T1 times out, then when the core network subsequently receives the SMC completion message (security mode command response message) from the called party, it discards the message, releases the terminal RRC connection and other resources through the access network, terminates the call establishment process, and does not initiate the called party Setup message and subsequent processes on the called party side;

[0173] As an optional implementation method, terminating the call establishment process of the called side terminal includes: after a preset time period, when the core network network element has sent a call establishment message to the called side terminal, the core network network element discards the call establishment response message sent by the called side terminal in response to the call establishment message, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0174] Optionally, if the core network has received the SMC completion message from the called party and sent a Setup message (call establishment message) when T1 times out, then when the core network subsequently receives the Call Confirmed message (call establishment response message) from the called party, it discards the message, releases the terminal RRC connection and other resources through the access network, terminates the call establishment process, and does not initiate the called party RAB assignment and subsequent called party processes;

[0175] As an optional implementation method, terminating the call establishment process of the called side terminal includes: after a preset time period, when the core network network element completes the wireless access bearer allocation process of the called side terminal, the core network network element discards the ringing message sent by the called side terminal, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0176] Optionally, if the core network has completed the RAB assignment process (radio access bearer allocation process) on the called side when T1 times out, then when the core network subsequently receives the Alerting message (ringing message) from the called side, it discards the message, releases the terminal RRC connection and other resources through the access network, terminates the call establishment process, and does not initiate the Alerting ringing process to the calling terminal.

[0177] As an optional implementation method, taking the emergency rescue communication scenario as an example, in this scenario, quickly establishing a communication link is crucial to the timeliness and effectiveness of the rescue operation. According to the traditional process, when the rescue team (calling terminal) initiates a call to the command center (called terminal), the signaling from the calling terminal to the calling GSC, and then to the core network, as well as the subsequent authentication, security control and resource allocation processes must be completed serially, which may lead to a longer call establishment delay. However, using the implementation method of the present application, after receiving the Setup message from the calling terminal, the core network immediately initiates the Paging process to the called side GSC (the beam where the command center is located) instead of waiting for the RAB assignment to be completed. This change realizes the parallel execution of the calling side RAB assignment and the called side Paging process, significantly speeds up the processing speed of call signaling, and shortens the call establishment time. Under normal circumstances, the entire call establishment process takes about 25 seconds, but by adopting the technical solution of the present invention, about 4 seconds can be saved. This means that in emergency rescue scenarios, the communication between the rescue team and the command center can be established 16% earlier, which is a very valuable time saving for rescue operations that require every second to count.

[0178] In addition, this application also considers the signaling fallback process in abnormal scenarios. The core network element will set a dynamic timer T1 for monitoring. If an abnormality occurs during the RAB assignment process on the calling side, T1 will time out. After T1 times out, the core network will send a signal to the GSC on the called side according to the current stage of the process, instructing it to release the allocated resources and terminate any ongoing signaling interaction process to prevent invalid signaling from continuing to occupy satellite channel resources and avoid unnecessary interference to the called terminal. This mechanism ensures that even in the face of unforeseen network failures, the system can quickly recover to normal without affecting other ongoing or subsequent calls.

[0179] Through the above steps, the core network element initiates the called party paging process in advance, and the calling side RAB assignment and the called party paging process are carried out in parallel, which can achieve the purpose of accelerating call establishment. Specifically, the method embodiment of the present application has the following advantages:

[0180] 1. The RAB assignment on the calling side and the paging process on the called side are carried out in parallel: the timing for the core network side to initiate the called party paging process is advanced. After the core network receives the Setup message from the calling side, it immediately initiates the called party paging, instead of waiting for the core network and the calling terminal to complete the RAB assignment process before initiating the called party paging; after the core network receives the RAB assignment completion message on the calling side, it no longer needs to initiate paging because the called party paging process has been initiated in advance; in the related art, the entire call establishment process takes about 25 seconds. Using the optimization method of the method embodiment of the present application, the Tiantong satellite core network network element sends the called party paging request in advance, which can speed up the call establishment process and save about 4 seconds, that is, 16% of the time, which can significantly improve the user experience.

[0181] 2. Ensure communication process security: When the core network receives the caller Setup message, the caller authentication process has been completed, ensuring the legitimacy of the caller and preventing security issues. In addition, it provides a comprehensive fallback strategy for the called party's signaling in the event of an abnormal RAB assignment process on the calling side. This ensures that unnecessary signaling processing on the called party can be terminated in a timely manner, avoiding the occupation of system resources due to invalid operations, thereby improving the stability of the overall network operation and reducing resource waste.

[0182] The embodiment of the present application provides a satellite call process establishment device, which is applicable to a core network element. Figure 6 is a structural diagram of the device, such as Figure 6As shown, the device includes: a first processing module 60, used to obtain call establishment information sent by the calling side terminal through a first access network, wherein the first access network includes a communication satellite; a second processing module 62, used to determine the called side terminal based on the call establishment information, and determine the beam in which the called side terminal resides; a third processing module 64, used to send a paging instruction to the second access network corresponding to the called side terminal when the wireless access bearer allocation is not completed with the calling side terminal, wherein the second access network includes a communication satellite.

[0183] In some embodiments of the present application, after sending a paging instruction to the second access network corresponding to the called side terminal, the third processing module 64 is also used to: determine a preset duration; if no response information sent by the calling side terminal is received within the preset duration, terminate the call establishment process of the called side terminal, wherein the response information is used to indicate that the wireless access bearer allocation of the calling side terminal is completed.

[0184] In some embodiments of the present application, the third processing module 64 terminates the call establishment process of the called side terminal, including: after a preset time period, when the core network network element receives a paging response message sent by the called side terminal, the core network network element discards the paging response message, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0185] In some embodiments of the present application, the third processing module 64 terminates the call establishment process of the called side terminal, including: after a preset time period, when the core network network element has sent an authentication request message to the called side terminal, the core network network element discards the authentication response message sent by the called side terminal in response to the authentication request message, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0186] In some embodiments of the present application, the third processing module 64 terminates the call establishment process of the called side terminal, including: after a preset time period, when the core network network element has sent a security mode command message to the called side terminal, the core network network element discards the security mode command response message sent by the called side terminal in response to the security mode command message, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0187] In some embodiments of the present application, the third processing module 64 terminates the call establishment process of the called side terminal, including: after a preset time period, when the core network network element has sent a call establishment message to the called side terminal, the core network network element discards the call establishment response message sent by the called side terminal in response to the call establishment message, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0188] In some embodiments of the present application, the third processing module 64 terminates the call establishment process of the called side terminal, including: after a preset time period, when the core network network element completes the wireless access bearer allocation process of the called side terminal, the core network network element discards the ringing message sent by the called side terminal, and releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

[0189] It should be noted that the various modules in the above-mentioned satellite call process establishment device can be program modules (for example, a set of program instructions that implement a certain specific function) or hardware modules. For the latter, it can be expressed in the following forms, but is not limited to this: the expression form of each of the above-mentioned modules is a processor, or the functions of each of the above-mentioned modules are implemented by a processor.

[0190] An embodiment of the present application provides a non-volatile storage medium, in which a program is stored. When the program is running, the device where the non-volatile storage medium is located is controlled to execute the following satellite call process establishment method: a core network network element obtains call establishment information sent by a calling side terminal through a first access network, wherein the first access network includes a communication satellite; the core network network element determines the called side terminal based on the call establishment information, and determines the beam in which the called side terminal resides; the core network network element sends a paging instruction to the second access network corresponding to the called side terminal without completing the wireless access bearer allocation with the calling side terminal, wherein the second access network includes a communication satellite.

[0191] An embodiment of the present application provides an electronic device, comprising: a memory and a processor, the processor being configured to run a program stored in the memory, wherein the program, when running, executes the following satellite call process establishment method: a core network network element obtains call establishment information sent by a calling side terminal through a first access network, wherein the first access network includes a communication satellite; the core network network element determines the called side terminal based on the call establishment information, and determines the beam in which the called side terminal resides; the core network network element sends a paging instruction to a second access network corresponding to the called side terminal without completing wireless access bearer allocation with the calling side terminal, wherein the second access network includes a communication satellite.

[0192] An embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the following satellite call process establishment method: a core network network element obtains call establishment information sent by a calling side terminal through a first access network, wherein the first access network includes a communication satellite; the core network network element determines the called side terminal based on the call establishment information, and determines the beam in which the called side terminal resides; the core network network element sends a paging instruction to a second access network corresponding to the called side terminal without completing wireless access bearer allocation with the calling side terminal, wherein the second access network includes a communication satellite.

[0193] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0194] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0195] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0196] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0197] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0198] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for establishing a satellite call process, characterized in that: include: The core network element obtains call establishment information sent by the calling terminal through a first access network, wherein the first access network includes a communication satellite; The core network element determines the called terminal according to the call establishment information, and determines the beam where the called terminal resides; The core network element sends a paging instruction to a second access network corresponding to the called side terminal when the radio access bearer allocation with the calling side terminal is not completed, wherein the second access network includes a communication satellite.

2. The satellite call process establishment method according to claim 1, characterized in that: After sending the paging instruction to the second access network corresponding to the called terminal, the method further includes: Determine the preset duration; If no response information is received from the calling terminal within the preset time period, the call establishment process of the called terminal is terminated, wherein the response information is used to indicate that the radio access bearer allocation of the calling terminal is completed.

3. The satellite call process establishment method according to claim 2, characterized in that: The process of terminating a call on the called terminal includes: After the preset time period, when the core network element receives a paging response message sent by the called terminal, the core network element discards the paging response message, releases the wireless resource control connection resources corresponding to the called terminal through the second access network, and terminates the call establishment process.

4. The satellite call process establishment method according to claim 2, characterized in that: The process of terminating a call on the called terminal includes: After the preset time period, when the core network network element has sent an authentication request message to the called terminal, the core network network element discards the authentication response message sent by the called terminal in response to the authentication request message, releases the wireless resource control connection resources corresponding to the called terminal through the second access network, and terminates the call establishment process.

5. The satellite call process establishment method according to claim 2, characterized in that: The process of terminating a call on the called terminal includes: After the preset time period, when the core network network element has sent a security mode command message to the called terminal, the core network network element discards the security mode command response message sent by the called terminal in response to the security mode command message, releases the wireless resource control connection resources corresponding to the called terminal through the second access network, and terminates the call establishment process.

6. The satellite call process establishment method according to claim 2, characterized in that: The process of terminating a call on the called terminal includes: After the preset time period, when the core network network element has sent a call establishment message to the called side terminal, the core network network element discards the call establishment response message sent by the called side terminal in response to the call establishment message, releases the wireless resource control connection resources corresponding to the called side terminal through the second access network, and terminates the call establishment process.

7. The satellite call process establishment method according to claim 2, characterized in that: The process of terminating a call on the called terminal includes: After the preset time period, when the core network element completes the wireless access bearer allocation process of the called terminal, the core network element discards the ringing message sent by the called terminal, releases the wireless resource control connection resources corresponding to the called terminal through the second access network, and terminates the call establishment process.

8. A satellite call process establishment device, suitable for use in a core network element, characterized in that: include: A first processing module is configured to obtain call establishment information sent by a calling terminal through a first access network, wherein the first access network includes a communication satellite; A second processing module is used to determine the called side terminal according to the call establishment information, and determine the beam where the called side terminal resides; The third processing module is configured to send a paging instruction to a second access network corresponding to the called terminal when radio access bearer allocation is not completed with the calling terminal, wherein the second access network includes a communication satellite.

9. A non-volatile storage medium, characterized in that: The non-volatile storage medium stores a program, wherein when the program is running, the device where the non-volatile storage medium is located is controlled to execute the satellite call process establishment method according to any one of claims 1 to 7.

10. An electronic device, characterized in that: include: A memory and a processor, wherein the processor is configured to run a program stored in the memory, wherein the program, when running, executes the satellite call process establishment method according to any one of claims 1 to 7.

11. A computer program product, characterized in that The invention comprises a computer program, which implements the satellite call process establishment method according to any one of claims 1 to 7 when being executed by a processor.

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