Call communication method and system, electronic equipment, storage medium and program product

Abstract

The invention discloses a call communication method and system, electronic equipment, a storage medium and a program product. The method comprises the following steps: in response to a radio resource control connection establishment message sent by a base station, establishing a signaling connection link between a terminal device and the base station; under the condition that the establishment of the signaling connection link is completed, a radio resource control connection establishment completion message is sent to the base station, the radio resource control connection establishment completion message further comprises initial direct transmission message indication information, and the initial direct transmission message indication information is sent to the base station; the initial direct transfer message indication information is used for requesting a service connection management service or responding to a call request sent to the terminal equipment. According to the method and the device, the technical problems of low utilization rate of air interface resources and relatively long call delay caused by the fact that RRC CONNECTION SETUP COMPLETE and INITIAL DT of a calling side and a called side are different separated air interface messages in a satellite system in the related technology are solved.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a call communication method, system, electronic device, storage medium, and program product. Background Art

[0002] In the satellite system of the related art, the RRC CONNECTION SETUP COMPLETE (Radio Resource Control Connection Setup Complete message) and the INITIAL DT (INITIAL DIRECT TRANSFER) of the calling side or the called side are separate radio interface messages. That is, after the calling side or the called side sends the RRC CONNECTION SETUP COMPLETE message in the call establishment process, it is also necessary to additionally send the INITIAL DT message to carry the NAS (Non-Access Stratum) layer CM Service Request (Connection Management Service Request) or Paging Response, which will lead to technical problems such as low radio interface resource utilization efficiency and long call establishment delay.

[0003] In view of the above problems, no effective solution has been proposed yet. Summary of the Invention

[0004] Embodiments of this application provide a call communication method, system, electronic device, storage medium, and program product to at least solve the technical problems of low radio interface resource utilization rate and long call delay caused by the fact that the RRC CONNECTION SETUP COMPLETE and the INITIAL DT of the calling side and the called side in the satellite system of the related art are separate radio interface messages.

[0005] According to one aspect of the embodiments of this application, a call communication method is provided, including: in response to a radio resource control connection establishment message sent by a base station, establishing a signaling connection link between a terminal device and the base station according to the radio link parameter indication information in the radio resource control connection establishment message; and in the case where the signaling connection link is established, sending a radio resource control connection establishment complete message to the base station, where the radio resource control connection establishment complete message is used to indicate that the radio resource control connection has been successfully established, and the radio resource control connection establishment complete message further includes an initial direct transfer message indication information, and the initial direct transfer message indication information is used to request a service connection management service or respond to a call request sent to the terminal device.

[0006] Optionally, the initial direct transfer message indication information includes: a connection management service request cell, where the connection management service request cell is used to request a service connection management service; sending a radio resource control connection establishment complete message to the base station includes: when the terminal device is the calling terminal, adding a connection management service request cell to the initial radio resource control connection establishment complete message; sending the radio resource control connection establishment message with the added connection management service request cell to the first base station corresponding to the calling terminal.

[0007] Optionally, after sending the radio resource control connection establishment message with the added connection management service request cell to the first base station corresponding to the calling terminal, the method further includes: in response to the authentication message sent by the first base station, returning an authentication response message to the first base station; in response to the security mode command message sent by the first base station, configuring the security mode, and when the security mode has been successfully configured, returning a security mode complete message to the first base station; sending a call establishment message to the first base station to request call establishment.

[0008] Optionally, the initial direct transfer message indication information includes: a paging response cell, where the paging response cell is used to respond to a call request sent to the terminal device; sending a radio resource control connection establishment complete message to the base station includes: when the terminal device is the called terminal, adding a paging response cell to the initial radio resource control connection establishment complete message; sending the radio resource control connection establishment message with the added paging response cell to the second base station corresponding to the called terminal.

[0009] Optionally, after sending the radio resource control connection establishment message with the added paging response cell to the second base station corresponding to the called terminal, the method further includes: in response to the authentication message sent by the second base station, returning an authentication response message to the second base station; in response to the security mode command message sent by the second base station, configuring the security mode, and when the security mode has been successfully configured, returning a security mode complete message to the second base station; in response to the call establishment message sent by the second base station, returning a call response message to the second base station to establish a call connection with the calling terminal.

[0010] Optionally, the method further includes: in response to the paging message sent by the second base station, sending a radio resource control connection request message to the second base station, where the second base station is used to send a radio resource control connection establishment message to the called terminal when receiving the radio resource control connection request message.

[0011] Optionally, the base station is used to, when receiving the radio resource control connection establishment complete message, extract the initial direct transfer message indication information from the radio resource control connection establishment complete message and send the initial direct transfer message indication information to the core network.

[0012] According to another aspect of the embodiments of the present application, another call communication method is provided, including: in response to a radio resource control connection establishment message sent by a first base station, establishing a signaling connection link between a calling terminal and the first base station according to the radio link parameter indication information in the radio resource control connection establishment message; in the case where the signaling connection link is established, sending a radio resource control connection establishment completion message to the first base station, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection of the first base station has been successfully established, and the radio resource control connection establishment completion message further includes a connection management service request cell, and the connection management service request cell is used to request a service connection management service.

[0013] According to yet another aspect of the embodiments of the present application, yet another call communication method is provided, including: in response to a radio resource control connection establishment message sent by a second base station, establishing a signaling connection link between a called terminal and the second base station according to the radio link parameter indication information in the radio resource control connection establishment message; in the case where the signaling connection link is established, sending a radio resource control connection establishment completion message to the second base station, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection of the second base station has been successfully established, and the radio resource control connection establishment completion message further includes a paging response cell, and the paging response cell is used to respond to a call request sent to the called terminal.

[0014] According to still another aspect of the embodiments of the present application, still another call communication method is provided, including: in response to a radio resource control connection request message sent by a calling terminal, returning a radio resource control connection establishment message to the calling terminal, where the radio resource control connection establishment message is used to indicate that the calling terminal establishes a signaling connection link with a first base station; receiving a radio resource control connection establishment completion message sent by the calling terminal in the case where the signaling connection link is established, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection of the first base station has been successfully established, and the radio resource control connection establishment completion message further includes a connection management service request cell, and the connection management service request cell is used to request a service connection management service; extracting the connection management service request cell from the radio resource control connection establishment completion message and sending the connection management service request cell to the core network.

[0015] According to another aspect of the embodiments of the present application, another call communication method is provided, including: in response to a radio resource control connection request message sent by a called terminal, returning a radio resource control connection establishment message to the called terminal, where the radio resource control connection establishment message is used to instruct the called terminal to establish a signaling connection link with a second base station; receiving a radio resource control connection establishment completion message sent by the called terminal when the signaling connection link is successfully established, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection with the second base station has been successfully established, and the radio resource control connection establishment completion message further includes a paging response cell, and the paging response cell is used to respond to a call request sent to the called terminal; extracting the paging response cell from the radio resource control connection establishment completion message and sending the paging response cell to the core network.

[0016] According to another aspect of the embodiments of the present application, a call communication system is provided, including: a calling terminal, a called terminal, a first base station, and a second base station. Among them, the calling terminal is configured to send a radio resource control connection request message to the first base station and receive a radio resource control connection establishment message returned by the first base station in response to the radio resource control connection request message; in response to the radio resource control connection establishment message sent by the first base station, establish a signaling connection link between the calling terminal and the first base station according to the radio link parameter indication information in the radio resource control connection establishment message; in the case where the signaling connection link is established, send a radio resource control connection establishment completion message to the first base station, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection has been successfully established, and the radio resource control connection establishment completion message further includes a connection management service request cell, and the connection management service request cell is used to request a service connection management service; the first base station is configured to receive the radio resource control connection establishment completion message sent by the calling terminal, extract the connection management service request cell from the radio resource control connection establishment completion message, and send the connection management service request cell to the core network; the second base station is configured to, in response to a paging message sent by the core network, send a paging message to the called terminal; receive a radio resource control connection request message sent by the called terminal in response to the paging message; in response to the radio resource control connection request message sent by the called terminal, return a radio resource control connection establishment message to the called terminal; the called terminal is configured to, in response to the radio resource control connection establishment message sent by the second base station, establish a signaling connection link between the called terminal and the second base station according to the radio link parameter indication information in the radio resource control connection establishment message; in the case where the signaling connection link is established, send a radio resource control connection establishment completion message to the second base station, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection has been successfully established, and the radio resource control connection establishment completion message further includes a paging response cell, and the paging response cell is used to respond to a call request sent to the called terminal; the second base station is further configured to receive the radio resource control connection establishment completion message sent by the called terminal, extract the paging response cell from the radio resource control connection establishment completion message, and send the paging response cell to the core network to establish a call connection between the calling terminal and the called terminal.

[0017] According to another aspect of the embodiments of the present application, an electronic device is further provided, including: a memory and a processor, where the processor is configured to run a program stored in the memory, and when the program runs, it executes a call communication method.

[0018] According to another aspect of the embodiments of the present application, a non-volatile storage medium is further provided. The non-volatile storage medium includes a stored computer program. Wherein, the device where the non-volatile storage medium is located executes the call communication method by running the computer program.

[0019] According to another aspect of the embodiments of the present application, a computer program product is further provided, including a computer program, and when the computer program is executed by a processor, the steps of the call communication method are implemented.

[0020] In the embodiments of the present application, in response to a radio resource control connection establishment message sent by a base station, a signaling connection link between a terminal device and the base station is established according to the radio link parameter indication information in the radio resource control connection establishment message; when the signaling connection link is established, a radio resource control connection establishment completion message is sent to the base station, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection has been successfully established, and the radio resource control connection establishment completion message further includes initial direct transfer message indication information, and the initial direct transfer message indication information is used to request a service connection management service or respond to a call request sent to the terminal device. By merging the initial direct transfer message carrying the first NAS message into the RRC (Radio Resource Control) connection establishment process and sending it to the network side, the purpose of optimizing the use of air interface resources and delay is achieved, and further solves the technical problems of low air interface resource utilization rate and long call delay caused by the fact that in the satellite system of related technologies, the RRC CONNECTION SETUP COMPLETE and INITIAL DT on the calling side and the called side are separate and different air interface messages. Description of the Drawings

[0021] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0022] Figure 1 is a hardware structure block diagram of a computer terminal (or electronic device) for implementing a call communication method provided by an embodiment of the present application;

[0023] Figure 2 is a schematic diagram of a call communication method flow provided by an embodiment of the present application;

[0024] Figure 3 is a schematic diagram of a signaling interaction process on the calling side provided by an embodiment of the present application;

[0025] Figure 4It is a schematic diagram of a signaling interaction process on the called side according to an embodiment of the present application;

[0026] Figure 5 It is a schematic diagram of a method flow of call communication applied to a calling terminal according to an embodiment of the present application;

[0027] Figure 6 It is a schematic diagram of a method flow of call communication applied to a called terminal according to an embodiment of the present application;

[0028] Figure 7 It is a schematic diagram of a method flow of call communication applied to a first base station corresponding to a calling terminal according to an embodiment of the present application;

[0029] Figure 8 It is a schematic diagram of a method flow of call communication applied to a second base station corresponding to a called terminal according to an embodiment of the present application;

[0030] Figure 9 It is a schematic diagram of the structure of a call communication system according to an embodiment of the present application. Detailed implementation manners

[0031] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0032] 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 do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0033] In the related art, RRC CONNECTION SETUP COMPLETE and INITIAL DT on the calling side or the called side are separate radio interface messages, but the initial NAS message can be sent to the network side during the RRC connection establishment process, leaving room for optimization.

[0034] To solve this problem, relevant solutions are provided in the embodiments of the present application, which are described in detail below.

[0035] According to an embodiment of the present application, an embodiment of a method for call communication 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 the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0036] The method embodiment provided by the embodiments of the present application can be executed in a mobile terminal, a computer terminal, or a similar computing device. Figure 1 A hardware structure block diagram of a computer terminal (or electronic device) for implementing a call communication method is shown. As Figure 1 shown, the computer terminal 10 (or electronic device) may include one or more (shown as 102a, 102b,..., 102n in the figure) processors 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 104 for storing data, and a transmission device 106 for communication functions. In addition, it may further 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. Those of ordinary skill in the art can understand that Figure 1 the structure shown is only schematic and does not limit the structure of the above-mentioned electronic device. For example, the computer terminal 10 may further include more or fewer components than Figure 1 shown, or have a different configuration from Figure 1 shown.

[0037] It should be noted that the above one or more processors 102 and / or other data processing circuits are generally referred to as "data processing circuits" in this article. The data processing circuit may be embodied in whole or in part as software, hardware, firmware, or any other combination. In addition, the data processing circuit may be a single independent processing module, or be incorporated in whole or in part into any one of the other elements in the computer terminal 10 (or electronic device). As involved in the embodiments of the present application, the data processing circuit is used for processor control (such as the selection of a variable resistor terminal path connected to an interface).

[0038] The memory 104 can be used to store software programs and modules of application software, such as the program instructions / data storage device corresponding to the call communication method in the embodiments of the present application. The processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, that is, implements the above call communication method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some instances, the memory 104 may further include a memory remotely disposed relative to the processor 102, and these remote memories can be connected to the computer terminal 10 through a network. Examples of the above network include but are not limited to the Internet, enterprise intranet, local area network, mobile communication network, and combinations thereof.

[0039] The transmission device 106 is used to receive or send data via a network. Specific examples of the above network may include the wireless network provided by the communication provider of the computer terminal 10. In one instance, the transmission device 106 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station and thus communicate with the Internet. In one instance, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0040] The display can be, for example, a touch-screen liquid crystal display (LCD), and the liquid crystal display enables a user to interact with the user interface of the computer terminal 10 (or electronic device).

[0041] Under the above operating environment, the embodiments of the present application provide a call communication method. Figure 2 It is a schematic diagram of the method flow of a call communication provided according to the embodiments of the present application, as Figure 2 shown, the method includes the following steps:

[0042] Step S202, in response to the radio resource control connection establishment message sent by the base station, establish a signaling connection link between the terminal device and the base station according to the radio link parameter indication information in the radio resource control connection establishment message;

[0043] Step S204. When the signaling connection link is successfully established, send a Radio Resource Control (RRC) connection setup complete message to the base station. The RRC connection setup complete message is used to indicate that the RRC connection with the base station has been successfully established. The RRC connection setup complete message further includes initial direct transfer message indication information, which is used to request service connection management services or respond to a call request sent to the terminal device.

[0044] Through the above steps, by incorporating the initial direct transfer message carrying the first NAS message into the RRC connection establishment process and sending it to the network side, the purpose of optimizing the use of air interface resources and reducing latency is achieved. Furthermore, it solves the technical problems of low air interface resource utilization rate and long call latency in the satellite system of related technologies, where the RRC CONNECTION SETUP COMPLETE and INITIAL DT of the calling side and the called side are separate air interface messages.

[0045] Next, the call communication method in steps S202 to S204 of the embodiment of the present application will be further introduced.

[0046] In the embodiment of the present application, the above terminal device can be divided into a calling terminal and a called terminal. On the calling terminal side, the initial direct transfer message indication information (CM Service Request) used to request service connection management services can be incorporated into the RRC connection setup complete message. On the called terminal side, the initial direct transfer message indication information (Paging Response) used to respond to a call request sent to the terminal device can be incorporated into the RRC connection setup complete message. Next, the signaling interaction processes on the calling terminal side and the called terminal side will be introduced respectively.

[0047] First, on the calling terminal side, the INITIAL DT (CM Service Request) message can be incorporated into the RRC CONNECTION SETUP COMPLETE message. The specific signaling process is as Figure 3 shown. Here, MES_1 (Mobile Earth Station) represents the calling terminal, GSC_1 (Gateway Station Controller) represents the first base station corresponding to the calling terminal, and CN (Core Network) represents the core network. The specific signaling interaction process is as follows.

[0048] Step 1. The calling terminal sends a Radio Resource Control connection request message (RRC CONNECTION REQUEST) to the calling GSC (the first base station);

[0049] Step 2, after the calling GSC receives the Radio Resource Control connection request message, it sends a Radio Resource Control connection setup message (RRC CONNECTION SETUP) to the calling terminal and passes the radio link parameters to the calling terminal.

[0050] Step 3, after the calling terminal receives the Radio Resource Control connection setup message, it will establish a dedicated signaling connection according to the radio link parameter indication information in the Radio Resource Control connection setup message, and then send a Radio Resource Control connection setup complete message (RRC CONNECTION SETUP COMPLETE). At this time, the calling side INITIAL DT (CMService Request) message will be merged into the RRC CONNECTION SETUP COMPLETE message and sent to the calling GSC together, as follows.

[0051] In some embodiments of the present application, the initial direct transfer message indication information includes: a connection management service request cell, where the connection management service request cell is used to request a service connection management service; sending the Radio Resource Control connection setup complete message to the base station includes: in the case where the terminal device is a calling terminal, adding a connection management service request cell to the initial Radio Resource Control connection setup complete message; and sending the Radio Resource Control connection setup message with the added connection management service request cell to the first base station corresponding to the calling terminal.

[0052] Specifically, a cell is added at the end of the RRC CONNECTION SETUP COMPLETE message to carry the NAS message CMService Request (i.e., the connection management service request cell). The parameter filling is the same as the CM Service Request message parameters carried by the original INITIAL DT in the related art. The CM service type is filled with "0001" to indicate a MO call; the RRC layer no longer sends the initial direct transfer INITIAL DT message separately.

[0053] Compared with the solution in the related art where the calling terminal first sends an RRC CONNECTION SETUP COMPLETE message to the calling GSC to notify the network side that the RRC connection is established; after the RRC CONNECTION SETUP COMPLETE message is sent, an initial direct transfer message (INITIAL DIRECT TRANSFER) carrying a CM service request message (CM Service Request) is then sent to the calling GSC immediately. In the embodiment of the present application, there is no need to separately send an initial direct transfer INITIAL DT message. Instead, the CM Service Request message is directly carried in the RRC CONNECTION SETUP COMPLETE message, which enables the network side to immediately process the service request when receiving the message indicating the completion of the RRC connection establishment, without waiting for an additional INITIAL DT message. This can reduce the delay of signaling interaction and speed up the call establishment process.

[0054] Step 5, (in the embodiment of the present application, there is no need for step 4 in the related art of sending an initial direct transfer message carrying a CM service request message). After the calling GSC receives the RRC CONNECTION SETUP COMPLETE message carrying the CM Service Request cell, it starts to establish an Iu connection, and then sends an initial user equipment message (INITIAL UE MESSAGE) to the core network CN;

[0055] Step 6, the core network initiates an authentication request and sends a DIRECT TRANSFER (direct transfer message, DT) to the calling GSC, which carries an authentication request message (Authentication Request) in the mobility management (MM) layer;

[0056] After that, subsequent authentication and security mode configuration processes are carried out to establish a call request, as follows.

[0057] In some embodiments of the present application, after the radio resource control connection establishment message with the added connection management service request cell is sent to the first base station corresponding to the calling terminal, the method further includes the following steps: in response to the authentication message sent by the first base station, returning an authentication response message to the first base station; in response to the security mode command message sent by the first base station, configuring the security mode, and returning a security mode completion message to the first base station when the security mode has been successfully configured; sending a call establishment message to the first base station to request the establishment of a call.

[0058] Specifically, in step 7, the calling GSC sends the authentication message to the calling terminal through the downlink direct transfer message DOWNLINK DIRECT TRANSFER;

[0059] In step 8, the calling terminal sends an uplink direct transfer message UPLINK DIRECT TRANSFER to the calling GSC, which carries the NAS layer authentication response message Authentication Response;

[0060] In step 9, the calling GSC sends the authentication response message Authentication Response to the core network CN through the DIRECT TRANSFER message;

[0061] In step 10, after the core network receives the authentication response message and the authentication is successful, it initiates a security mode control process and sends a SECURITY MODE COMMAND to the calling GSC;

[0062] In step 11, the calling GSC sends the security mode command message SECURITY MODE COMMAND to the calling terminal;

[0063] In step 12, the calling terminal replies with a security mode complete message SECURITY MODE COMPLETE to the calling GSC;

[0064] In step 13, the calling GSC sends SECURITY MODE COMPLETE to the core network CN to complete the security mode control process;

[0065] In step 14, the calling terminal sends an uplink direct transfer message UPLINK DIRECT TRANSFER to the calling GSC, which carries the NAS layer call message Setup;

[0066] In step 15, the calling GSC sends the call message Setup to the core network CN through the DIRECT TRANSFER message;

[0067] In step 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;

[0068] Step 17: The calling GSC sends the Call Proceeding message to the calling terminal through the DOWNLINK DIRECT TRANSFER message;

[0069] Step 18: The core network initiates the RAB assignment process and sends the RAB ASSIGNMENT REQUEST to the calling GSC;

[0070] Step 19: The calling GSC sends the RADIO BEARER SETUP message to the calling terminal;

[0071] Step 20: The calling terminal sends the RADIO BEARER SETUP COMPLETE message to the calling GSC;

[0072] Step 21: The calling GSC sends the RAB ASSIGNMENT RESPONSE to the core network CN to complete the RAB assignment process;

[0073] Step 22: After the core network locates the beam where the called party is resident, it sends the PAGE to the called GSC; after the core network receives the ringing message of the called terminal, it sends the DIRECT TRANSFER message to the calling GSC, which carries the Alerting message at the CC layer;

[0074] Step 23: The calling GSC sends the Alerting message to the calling terminal through the DOWNLINK DIRECT TRANSFER message;

[0075] Step 24: After the core network receives the off-hook message of the called party, it sends the DIRECT TRANSFER message to the calling GSC, which carries the Connect message at the CC layer;

[0076] Step 25: The calling GSC sends the Connect message to the calling terminal through the DOWNLINK DIRECT TRANSFER message;

[0077] Step 26: The calling terminal sends the UPLINK DIRECT TRANSFER message to the GSC, which carries the Connect ACK message at the NAS layer;

[0078] Step 27: The calling GSC sends the ConnectACK (Connection Confirmation) of the off-hook confirmation message to the core network CN through the DIRECT TRANSFER (Direct Transfer Message).

[0079] Step 28: The calling terminal and the called terminal start the call process.

[0080] In the embodiment of the present application, when the calling terminal constructs the RRC CONNECTION SETUP COMPLETE message after receiving the RRC CONNECTION SETUP message during the RRC connection establishment process, new content is added, that is, the CM Service Request message of the NAS layer is added; moreover, when the calling terminal needs to send the CM Service Request message of the NAS layer, it no longer constructs a separate INITIAL DT message of the RRC layer to send to the network.

[0081] On the other hand, the first base station corresponding to the calling terminal is used to extract the initial direct transfer message indication information (CM Service Request) from the radio resource control connection establishment complete message when receiving the radio resource control connection establishment complete message, and send the initial direct transfer message indication information (CM Service Request) to the core network.

[0082] Specifically, when the first base station side of the calling side receives the RRC CONNECTION SETUP COMPLETE message, a new function is added, that is, the CM Service Request message of the NAS layer is extracted from this message, and then an INITIAL UEMESSAGE carrying the CM Service Request is constructed and sent to the network; and the first base station no longer waits for and processes the separate INITIAL DT message of the RRC layer.

[0083] Next, the signaling interaction process on the called terminal side will be further introduced.

[0084] First, on the calling terminal side, the INITIAL DT (Paging Response) message can be merged into the RRC CONNECTION SETUP COMPLETE message. The specific signaling process is as Figure 4 shown, where CN (Core Network) represents the core network, GSC_2 (Gateway Station Controller) represents the second base station corresponding to the called terminal, and MES_2 (Mobile Earth Station) represents the called terminal. The specific signaling interaction process is as follows.

[0085] Step 1: After the core network locates the beam where the called party is resident, it sends PAGE to the called GSC (i.e., the second base station).

[0086] Step 2: The called GSC sends a paging message Paging Type 4 to the called terminal.

[0087] Step 3: After receiving the paging message, the called terminal sends a radio resource control connection request message (RRCConnection Request) to the called GSC, that is, in response to the paging message (PagingType 4) sent by the second base station, it sends a radio resource control connection request message to the second base station. Wherein, the second base station is used to send a radio resource control connection establishment message to the called terminal when receiving the radio resource control connection request message.

[0088] Step 4: After receiving the radio resource control connection request message (RRC Connection Request), the called GSC sends a radio resource control connection establishment message (RRC Connection Setup) to the called terminal, and passes the radio link parameters to the called terminal.

[0089] Step 5: After receiving the radio resource control connection establishment message, the called terminal will establish a dedicated signaling connection according to the radio link parameter indication information in the radio resource control connection establishment message, and then send a radio resource control connection establishment complete message (RRC CONNECTION SETUP COMPLETE). At this time, the called side INITIAL DT (PagingResponse) message will be merged into the RRC CONNECTION SETUP COMPLETE message and sent to the called GSC together, specifically as follows.

[0090] In some embodiments of the present application, the initial direct transfer message indication information includes: a paging response cell, wherein the paging response cell is used to respond to a call request sent to the terminal device; sending a radio resource control connection establishment complete message to the base station includes: in the case where the terminal device is the called terminal, adding a paging response cell to the initial radio resource control connection establishment complete message; and sending the radio resource control connection establishment message after adding the paging response cell to the second base station corresponding to the called terminal.

[0091] Specifically, a cell is added at the end of the RRC CONNECTION SETUP COMPLETE message to carry the NAS message Paging Response (i.e., the paging response cell), and the parameter filling is the same as the Paging Response message parameters carried by the original INITIAL DT in the related art; the RRC layer no longer separately sends the initial direct transfer INITIAL DT message;

[0092] Compared with the solution in the related art where the called terminal first sends the RRC CONNECTION SETUP COMPLETE message to the called GSC to notify the network side that the RRC connection is established; after the RRC CONNECTION SETUP COMPLETE message is sent, an initial direct transfer message (INITIAL DIRECTTRANSFER) carrying the paging response message (Paging Response) is then sent to the called GSC immediately. In the embodiment of this application, there is no need to separately send the initial direct transfer INITIAL DT message, but the Paging Response message is directly carried in the RRC CONNECTION SETUP COMPLETE message, which enables the network side to immediately process the service request when receiving the message indicating that the RRC connection is established, without waiting for an additional INITIAL DT message, and can reduce the delay of signaling interaction and speed up the call establishment process.

[0093] Step 7, (in the embodiment of this application, there is no need for step 6 in the related art of sending an initial direct transfer message carrying the Paging Response message). After the called GSC receives the RRC CONNECTION SETUP COMPLETE message carrying the Paging Response cell, it starts to establish the Iu connection, and then sends the initial user equipment message (INITIAL UEMESSAGE) to the core network CN;

[0094] Step 8, the core network initiates an authentication request and sends DIRECT TRANSFER to the called GSC, which carries the MM layer authentication request message Authentication Request;

[0095] After that, subsequent authentication and security mode configuration processes are carried out to establish a call request, specifically as follows.

[0096] In some embodiments of the present application, after sending the radio resource control connection establishment message with the paging response cell added to the second base station corresponding to the called terminal, the method further includes: in response to the authentication message sent by the second base station, returning an authentication response message to the second base station; in response to the security mode command message sent by the second base station, configuring the security mode, and in the case where the security mode has been successfully configured, returning a security mode complete message to the second base station; in response to the call establishment message sent by the second base station, returning a call response message to the second base station to establish a call connection with the calling terminal.

[0097] Specifically, in step 9, the called GSC sends the authentication message to the called terminal through the Downlink Direct Transfer message;

[0098] In step 10, the called terminal sends an Uplink Direct Transfer message to the called GSC, which carries the NAS layer authentication response message Authentication Response;

[0099] In step 11, the called GSC sends the authentication response message Authentication Response to the core network CN through the DIRECT TRANSFER message;

[0100] In step 12, after the core network receives the authentication response message and the authentication is successful, it initiates a security mode control process and sends a SECURITY MODE COMMAND to the called GSC;

[0101] In step 13, the called GSC sends the security mode command message SECURITY MODE COMMAND to the called terminal;

[0102] In step 14, the called terminal replies with a security mode complete message SECURITY MODE COMPLETE to the called GSC;

[0103] In step 15, the called GSC sends SECURITY MODE COMPLETE to the core network CN to complete the security mode control process;

[0104] In step 16, the core network CN sends the call message Setup to the called GSC through the DIRECT TRANSFER message;

[0105] Step 17, the called GSC sends a Downlink Direct Transfer message (Downlink Direct Transfer) to the called terminal, which carries a Setup message (Call Establishment) at the CC layer;

[0106] Step 18, the called terminal sends an Uplink Direct Transfer message (Uplink Direct Transfer) to the called GSC, which carries a Call Confirmed message (Call Confirmation) at the NAS layer;

[0107] Step 19, the called GSC sends the call response message Call Confirmed (Call Confirmation) to the core network CN through the DIRECT TRANSFER (Direct Transfer message);

[0108] Step 20, the core network initiates the RAB assignment process and sends a RAB ASSIGNMENT REQUEST (Radio Access Bearer Assignment Request) to the called GSC;

[0109] Step 21, the called GSC sends an RB setup message RB Setup (Radio Bearer Setup) to the called terminal;

[0110] Step 22, the called terminal replies with an RB setup completion message RB Setup Complete (Radio Bearer Setup Complete) to the called GSC;

[0111] Step 23, the called GSC sends a RAB ASSIGNMENT RESPONSE (Radio Access Bearer Assignment Response) to the core network CN to complete the RAB assignment process;

[0112] Step 24, the called terminal sends an Uplink Direct Transfer message (Uplink Direct Transfer) to the called GSC, which carries an Alerting message (Alerting) at the NAS layer;

[0113] Step 25, the called GSC sends the Alerting message (Alerting) to the core network CN through the DIRECT TRANSFER (Direct Transfer message);

[0114] Step 26, after the called terminal picks up the phone and answers, it sends an UPLINK DIRECT TRANSFER message (Uplink Direct Transfer) to the called GSC, which carries a Connect message (Connect) at the NAS layer;

[0115] Step 27: The called GSC sends the Connect message (indicating off-hook) carried by the DIRECT TRANSFER message to the core network CN.

[0116] Step 28: 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 Connect ACK message (off-hook confirmation message at the CC layer).

[0117] Step 29: The called GSC sends the Connect ACK message (off-hook confirmation message) to the called terminal through the DOWNLINK DIRECT TRANSFER message (downlink direct transfer message).

[0118] Step 30: The calling terminal and the called terminal start the call process.

[0119] In the embodiment of the present application, during the RRC connection establishment process of the called terminal (the called side terminal), after receiving the RRC CONNECTION SETUP message, when constructing the RRC CONNECTION SETUP COMPLETE message, new content is added, that is, the Paging Response message at the NAS layer is added; and when the called side terminal needs to send the Paging Response message at the NAS layer, it no longer constructs a separate INITIAL DT message at the RRC layer to send to the network.

[0120] On the other hand, the second base station corresponding to the called terminal is used to, when receiving the radio resource control connection establishment complete message, extract the initial direct transfer message indication information (Paging Response) from the radio resource control connection establishment complete message, and send the initial direct transfer message indication information (Paging Response) to the core network.

[0121] Specifically, when the called side base station receives the RRC CONNECTION SETUP COMPLETE message, a new function is added, that is, the Paging Response message at the NAS layer is extracted from this message, and then an INITIAL UE MESSAGE carrying the Paging Response is constructed and sent to the network; and the called side base station no longer waits for and processes a separate INITIAL DT message at the RRC layer.

[0122] In the solution of this application, the calling terminal merges the CM Service Request message at the NAS layer into the RRC CONNECTION SETUP COMPLETE message, streamlining the RRC layer radio interface signaling, improving the utilization rate of radio interface resources, and reducing the total radio interface transmission signaling time; the called terminal merges the Paging Response message at the NAS layer into the RRC CONNECTION SETUP COMPLETE message, streamlining the RRC layer radio interface signaling, improving the utilization rate of radio interface resources, and reducing the total radio interface transmission signaling time.

[0123] In addition, changing the INITIAL DT message carrying the NAS message at the RRC layer to be carried by the RRC CONNECTION SETUP COMPLETE message to the network is also applicable to the following scenario process messages: 1. The Location Updating Request message at the NAS layer in the location update process; 2. The Attach Request message at the NAS layer in the packet domain registration process; 3. The CM Service Request message at the NAS layer in the MO SMS process; 4. The Paging Response message at the NAS layer in the MT SMS process.

[0124] According to an embodiment of this application, there is also provided a call communication method applied to a calling terminal. Figure 5 It is a schematic diagram of a method flow of call communication applied to a calling terminal provided according to an embodiment of this application, as Figure 5 shown. The method includes the following steps:

[0125] Step S502, in response to a radio resource control connection establishment message sent by a first base station, establish a signaling connection link between the calling terminal and the first base station according to the radio link parameter indication information in the radio resource control connection establishment message.

[0126] Step S504, when the signaling connection link is established, send a radio resource control connection establishment complete message to the first base station. The radio resource control connection establishment complete message is used to indicate that the radio resource control connection has been successfully established with the first base station. The radio resource control connection establishment complete message further includes a connection management service request cell, and the connection management service request cell is used to request a service connection management service.

[0127] It should be noted that the call communication method provided in this embodiment is a method embodiment corresponding to the Figure 2 shown call communication method. Therefore, the relevant explanations of the above call communication method are also applicable to the embodiments of this application and will not be repeated here.

[0128] According to an embodiment of the present application, there is also provided a call communication method applied to a called terminal. Figure 6 It is a schematic diagram of a method flow of call communication applied to a called terminal according to an embodiment of the present application. As Figure 6 shown, the method includes the following steps:

[0129] Step S602: In response to a radio resource control connection establishment message sent by a second base station, establish a signaling connection link between the called terminal and the second base station according to the radio link parameter indication information in the radio resource control connection establishment message.

[0130] Step S604: When the signaling connection link is successfully established, send a radio resource control connection establishment completion message to the second base station. The radio resource control connection establishment completion message is used to indicate that the radio resource control connection with the second base station has been successfully established, and the radio resource control connection establishment completion message further includes a paging response cell, which is used to respond to a call request sent to the called terminal.

[0131] It should be noted that the call communication method provided in this embodiment is a method embodiment corresponding to the Figure 2 call communication method shown. Therefore, the relevant explanations of the above call communication method also apply to the embodiments of the present application and will not be elaborated here.

[0132] According to an embodiment of the present application, there is also provided a call communication method applied to a first base station corresponding to a calling terminal. Figure 7 It is a schematic diagram of a method flow of call communication applied to a first base station corresponding to a calling terminal according to an embodiment of the present application. As Figure 7 shown, the method includes the following steps:

[0133] Step S702: In response to a radio resource control connection request message sent by the calling terminal, return a radio resource control connection establishment message to the calling terminal. The radio resource control connection establishment message is used to indicate that the calling terminal establishes a signaling connection link with the first base station.

[0134] Step S704: Receive a radio resource control connection establishment completion message sent by the calling terminal when the signaling connection link is successfully established. The radio resource control connection establishment completion message is used to indicate that the radio resource control connection with the first base station has been successfully established, and the radio resource control connection establishment completion message further includes a connection management service request cell, which is used to request a service connection management service.

[0135] Step S706: Extract the connection management service request cell from the radio resource control connection establishment completion message and send the connection management service request cell to the core network.

[0136] It should be noted that the call communication method provided in this embodiment is a method embodiment corresponding to the Figure 2 call communication method shown, so the relevant explanations of the above call communication method also apply to the embodiments of the present application and will not be repeated here.

[0137] According to the embodiments of the present application, a call communication method applied to a second base station corresponding to a called terminal is further provided. Figure 8 is a schematic diagram of a method flow of call communication applied to a second base station corresponding to a called terminal provided according to the embodiments of the present application. As Figure 8 shown, the method includes the following steps:

[0138] Step S802, in response to a radio resource control connection request message sent by the called terminal, return a radio resource control connection establishment message to the called terminal, where the radio resource control connection establishment message is used to instruct the called terminal to establish a signaling connection link with the second base station;

[0139] Step S804, receive a radio resource control connection establishment completion message sent by the called terminal when the signaling connection link is established, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection with the second base station has been successfully established, and the radio resource control connection establishment completion message further includes a paging response cell, and the paging response cell is used to respond to a call request sent to the called terminal;

[0140] Step S806, extract the paging response cell from the radio resource control connection establishment completion message and send the paging response cell to the core network.

[0141] It should be noted that the call communication method provided in this embodiment is a method embodiment corresponding to the Figure 2 call communication method shown, so the relevant explanations of the above call communication method also apply to the embodiments of the present application and will not be repeated here.

[0142] According to the embodiments of the present application, an embodiment of a call communication system is further provided. Figure 9 is a schematic structural diagram of a call communication system provided according to the embodiments of the present application. As Figure 9 shown, the system includes:

[0143] The calling terminal is used to send a Radio Resource Control (RRC) connection request message to the first base station and receive the RRC connection establishment message returned by the first base station in response to the RRC connection request message; in response to the RRC connection establishment message sent by the first base station, establish a signaling connection link between the calling terminal and the first base station according to the radio link parameter indication information in the RRC connection establishment message; in the case where the signaling connection link is established, send an RRC connection establishment complete message to the first base station, where the RRC connection establishment complete message is used to indicate that the RRC connection has been successfully established, and the RRC connection establishment complete message further includes a connection management service request cell, and the connection management service request cell is used to request a service connection management service;

[0144] The first base station is used to receive the RRC connection establishment complete message sent by the calling terminal, extract the connection management service request cell from the RRC connection establishment complete message, and send the connection management service request cell to the core network;

[0145] The second base station is used to, in response to the paging message sent by the core network, send a paging message to the called terminal; receive the RRC connection request message sent by the called terminal in response to the paging message; and in response to the RRC connection request message sent by the called terminal, return an RRC connection establishment message to the called terminal;

[0146] The called terminal is used to, in response to the RRC connection establishment message sent by the second base station, establish a signaling connection link between the called terminal and the second base station according to the radio link parameter indication information in the RRC connection establishment message; in the case where the signaling connection link is established, send an RRC connection establishment complete message to the second base station, where the RRC connection establishment complete message is used to indicate that the RRC connection has been successfully established, and the RRC connection establishment complete message further includes a paging response cell, and the paging response cell is used to respond to the call request sent to the called terminal;

[0147] The second base station is further used to receive the RRC connection establishment complete message sent by the called terminal, extract the paging response cell from the RRC connection establishment complete message, and send the paging response cell to the core network to establish a call connection between the calling terminal and the called terminal.

[0148] The call communication system proposed in this application can merge the signaling connection link establishment process with the service connection management service request or call response by including the initial direct transfer message indication information in the radio resource control connection establishment complete message, thereby reducing the number of signaling interactions and improving the call establishment efficiency. For the calling terminal, by adding a connection management service request cell in the radio resource control connection establishment complete message, it can directly request the service connection management service without additional signaling interactions; for the called terminal, by adding a paging response cell in the radio resource control connection establishment complete message, it can directly respond to the call request, reducing the call response delay. In addition, the solution of this application can also optimize the utilization of network resources, reduce the network load, and improve the user experience. It is applicable to various wireless communication systems and has a wide range of application prospects.

[0149] It should be noted that each module in the above call communication system can be a program module (for example, a set of program instructions that implement a specific function), or a hardware module. For the latter, it can be presented in the following forms, but not limited to: the presentation form of each of the above modules is a processor, or the functions of each of the above modules are implemented by a processor.

[0150] It should be noted that the call communication system provided in this embodiment can be used to execute Figure 2 the call communication method shown. Therefore, the relevant explanations of the above call communication method also apply to the embodiments of this application and will not be repeated here.

[0151] The embodiments of this application also provide a non-volatile storage medium. The non-volatile storage medium includes a stored computer program. Among them, the device where the non-volatile storage medium is located executes the following call communication method by running the computer program: in response to a radio resource control connection establishment message sent by the base station, establish a signaling connection link between the terminal device and the base station according to the radio link parameter indication information in the radio resource control connection establishment message; in the case where the signaling connection link is established, send a radio resource control connection establishment complete message to the base station, where the radio resource control connection establishment complete message is used to indicate that the radio resource control connection has been successfully established, and the radio resource control connection establishment complete message also includes an initial direct transfer message indication information, and the initial direct transfer message indication information is used to request the service connection management service or respond to a call request sent to the terminal device.

[0152] Alternatively, in response to a Radio Resource Control (RRC) connection establishment message sent by the first base station, a signaling connection link is established between the calling terminal and the first base station according to the radio link parameter indication information in the RRC connection establishment message; when the signaling connection link is successfully established, an RRC connection establishment completion message is sent to the first base station, where the RRC connection establishment completion message is used to indicate that the RRC connection with the first base station has been successfully established, and the RRC connection establishment completion message further includes a connection management service request cell, which is used to request a service connection management service.

[0153] Alternatively, in response to a Radio Resource Control (RRC) connection establishment message sent by the second base station, a signaling connection link is established between the called terminal and the second base station according to the radio link parameter indication information in the RRC connection establishment message; when the signaling connection link is successfully established, an RRC connection establishment completion message is sent to the second base station, where the RRC connection establishment completion message is used to indicate that the RRC connection with the second base station has been successfully established, and the RRC connection establishment completion message further includes a paging response cell, which is used to respond to a call request sent to the called terminal.

[0154] Alternatively, in response to a Radio Resource Control (RRC) connection request message sent by the calling terminal, an RRC connection establishment message is returned to the calling terminal, where the RRC connection establishment message is used to indicate that the calling terminal establishes a signaling connection link with the first base station; upon receiving the RRC connection establishment completion message sent by the calling terminal when the signaling connection link is successfully established, where the RRC connection establishment completion message is used to indicate that the RRC connection with the first base station has been successfully established, and the RRC connection establishment completion message further includes a connection management service request cell, which is used to request a service connection management service; the connection management service request cell is extracted from the RRC connection establishment completion message and sent to the core network.

[0155] Alternatively, in response to a Radio Resource Control (RRC) connection request message sent by the called terminal, an RRC connection establishment message is returned to the called terminal, where the RRC connection establishment message is used to indicate that the called terminal establishes a signaling connection link with the second base station; upon receiving the RRC connection establishment completion message sent by the called terminal when the signaling connection link is successfully established, where the RRC connection establishment completion message is used to indicate that the RRC connection with the second base station has been successfully established, and the RRC connection establishment completion message further includes a paging response cell, which is used to respond to a call request sent to the called terminal; the paging response cell is extracted from the RRC connection establishment completion message and sent to the core network.

[0156] The embodiment of the present application further provides a computer program product, including a computer program, which when executed by a processor, implements the steps of the call communication method described in each embodiment of the present application: in response to a radio resource control connection establishment message sent by a base station, establish a signaling connection link between a terminal device and the base station according to the radio link parameter indication information in the radio resource control connection establishment message; in the case where the signaling connection link is established, send a radio resource control connection establishment completion message to the base station, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection has been successfully established, and the radio resource control connection establishment completion message further includes an initial direct transfer message indication information, and the initial direct transfer message indication information is used to request a service connection management service or respond to a call request sent to the terminal device.

[0157] Or, in response to a radio resource control connection establishment message sent by a first base station, establish a signaling connection link between a calling terminal and the first base station according to the radio link parameter indication information in the radio resource control connection establishment message; in the case where the signaling connection link is established, send a radio resource control connection establishment completion message to the first base station, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection of the first base station has been successfully established, and the radio resource control connection establishment completion message further includes a connection management service request cell, and the connection management service request cell is used to request a service connection management service.

[0158] Or, in response to a radio resource control connection establishment message sent by a second base station, establish a signaling connection link between a called terminal and the second base station according to the radio link parameter indication information in the radio resource control connection establishment message; in the case where the signaling connection link is established, send a radio resource control connection establishment completion message to the second base station, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection of the second base station has been successfully established, and the radio resource control connection establishment completion message further includes a paging response cell, and the paging response cell is used to respond to a call request sent to the called terminal.

[0159] Alternatively, in response to a Radio Resource Control (RRC) connection request message sent by a calling terminal, an RRC connection establishment message is returned to the calling terminal, where the RRC connection establishment message is used to instruct the calling terminal to establish a signaling connection link with a first base station; upon receiving an RRC connection establishment complete message sent by the calling terminal when the signaling connection link is successfully established, where the RRC connection establishment complete message is used to indicate that the RRC connection with the first base station has been successfully established, and the RRC connection establishment complete message further includes a connection management service request cell, where the connection management service request cell is used to request a service connection management service; the connection management service request cell is extracted from the RRC connection establishment complete message and sent to the core network.

[0160] Alternatively, in response to an RRC connection request message sent by a called terminal, an RRC connection establishment message is returned to the called terminal, where the RRC connection establishment message is used to instruct the called terminal to establish a signaling connection link with a second base station; upon receiving an RRC connection establishment complete message sent by the called terminal when the signaling connection link is successfully established, where the RRC connection establishment complete message is used to indicate that the RRC connection with the second base station has been successfully established, and the RRC connection establishment complete message further includes a paging response cell, where the paging response cell is used to respond to a call request sent to the called terminal; the paging response cell is extracted from the RRC connection establishment complete message and sent to the core network.

[0161] The serial numbers of the embodiments of the present application above are only for description and do not represent the superiority or inferiority of the embodiments.

[0162] In the above embodiments of the present application, the descriptions of the various embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0163] In several embodiments provided in the present 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 illustrative. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods. For example, 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 displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the units or modules can be in an electrical or other form.

[0164] The unit described as a separation component may or may not be physically separated. The component shown as a unit may or may not be a physical unit, that is, it may be located in one place or may be distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0165] In addition, each functional unit in various embodiments of the present application may be integrated in a processing unit, may exist separately as individual physical units, or two or more units may be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0166] If the above-mentioned 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 such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing 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 methods described in various embodiments of the present application. The aforementioned storage medium includes: USB flash drives, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), mobile hard disks, magnetic disks or optical discs and other various media that can store program codes.

[0167] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A call communication method, characterized in that, including: In response to a radio resource control connection establishment message sent by a base station, a signaling connection link between a terminal device and the base station is established according to radio link parameter indication information in the radio resource control connection establishment message; When the signaling connection link is established, a radio resource control connection establishment completion message is sent to the base station, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection has been successfully established, and the radio resource control connection establishment completion message further includes initial direct transfer message indication information, and the initial direct transfer message indication information is used to request a service connection management service or respond to a call request sent to the terminal device.

2. The call communication method according to claim 1, wherein The initial direct transfer message indication information includes: a connection management service request cell, where the connection management service request cell is used to request a service connection management service; sending the radio resource control connection establishment completion message to the base station includes: When the terminal device is a calling terminal, the connection management service request cell is added to the initial radio resource control connection establishment completion message; The radio resource control connection establishment message after adding the connection management service request cell is sent to a first base station corresponding to the calling terminal.

3. The call communication method according to claim 2, characterized in that, After the radio resource control connection establishment message after adding the connection management service request cell is sent to the first base station corresponding to the calling terminal, the method further includes: In response to an authentication message sent by the first base station, an authentication response message is returned to the first base station; In response to a security mode command message sent by the first base station, security mode configuration is performed, and when the security mode has been successfully configured, a security mode completion message is returned to the first base station; A call establishment message is sent to the first base station to request call establishment.

4. The call communication method according to claim 1, wherein The initial direct transfer message indication information includes: a paging response cell, where the paging response cell is used to respond to a call request sent to the terminal device; sending the radio resource control connection establishment completion message to the base station includes: When the terminal device is a called terminal, the paging response cell is added to the initial radio resource control connection establishment completion message; The radio resource control connection establishment message after adding the paging response cell is sent to a second base station corresponding to the called terminal.

5. The call communication method according to claim 4, characterized in that, After the radio resource control connection establishment message after adding the paging response cell is sent to the second base station corresponding to the called terminal, the method further includes: In response to an authentication message sent by the second base station, an authentication response message is returned to the second base station; In response to a security mode command message sent by the second base station, security mode configuration is performed, and when the security mode has been successfully configured, a security mode completion message is returned to the second base station; In response to a call establishment message sent by the second base station, a call response message is returned to the second base station to establish a call connection with the calling terminal.

6. The call communication method according to claim 4, wherein The method further includes: In response to a paging message sent by the second base station, send a radio resource control connection request message to the second base station, where the second base station is used to send a radio resource control connection establishment message to the called terminal when receiving the radio resource control connection request message.

7. The call communication method according to claim 1, characterized in that, The base station is used to, when receiving the radio resource control connection establishment completion message, extract the initial direct transfer message indication information from the radio resource control connection establishment completion message and send the initial direct transfer message indication information to the core network.

8. A call communication method, characterized in that, It includes: In response to a radio resource control connection establishment message sent by the first base station, establish a signaling connection link between the calling terminal and the first base station according to the radio link parameter indication information in the radio resource control connection establishment message; When the signaling connection link is established, send a radio resource control connection establishment completion message to the first base station, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection with the first base station has been successfully established, and the radio resource control connection establishment completion message further includes a connection management service request cell, and the connection management service request cell is used to request a service connection management service.

9. A call communication method, characterized in that, It includes: In response to a radio resource control connection establishment message sent by the second base station, establish a signaling connection link between the called terminal and the second base station according to the radio link parameter indication information in the radio resource control connection establishment message; When the signaling connection link is established, send a radio resource control connection establishment completion message to the second base station, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection with the second base station has been successfully established, and the radio resource control connection establishment completion message further includes a paging response cell, and the paging response cell is used to respond to a call request sent to the called terminal.

10. A call communication method, characterized in that, It includes: In response to a radio resource control connection request message sent by the calling terminal, return a radio resource control connection establishment message to the calling terminal, where the radio resource control connection establishment message is used to indicate that the calling terminal establishes a signaling connection link with the first base station; Receive the radio resource control connection establishment completion message sent by the calling terminal when the signaling connection link is established, where the radio resource control connection establishment completion message is used to indicate that the radio resource control connection with the first base station has been successfully established, and the radio resource control connection establishment completion message further includes a connection management service request cell, and the connection management service request cell is used to request a service connection management service; Extract the connection management service request cell from the radio resource control connection establishment completion message and send the connection management service request cell to the core network.

11. A call communication method, characterized in that, It includes: In response to a radio resource control connection request message sent by the called terminal, return a radio resource control connection establishment message to the called terminal, where the radio resource control connection establishment message is used to indicate that the called terminal establishes a signaling connection link with the second base station; Receive the Radio Resource Control (RRC) connection setup complete message sent by the called terminal when the signaling connection link is successfully established. The RRC connection setup complete message is used to indicate that the RRC connection with the second base station has been successfully established. The RRC connection setup complete message also includes a paging response cell, which is used to respond to the call request sent to the called terminal. Extract the paging response cell from the RRC connection setup complete message and send the paging response cell to the core network.

12. A call communication system, characterized in that, Comprising: A calling terminal, a called terminal, a first base station, and a second base station, where The calling terminal is configured to send an RRC connection request message to the first base station and receive the RRC connection setup message returned by the first base station in response to the RRC connection request message; in response to the RRC connection setup message sent by the first base station, establish a signaling connection link between the calling terminal and the first base station according to the radio link parameter indication information in the RRC connection setup message; when the signaling connection link is successfully established, send an RRC connection setup complete message to the first base station. The RRC connection setup complete message is used to indicate that the RRC connection with the first base station has been successfully established. The RRC connection setup complete message also includes a connection management service request cell, which is used to request a service connection management service. The first base station is configured to receive the RRC connection setup complete message sent by the calling terminal, extract the connection management service request cell from the RRC connection setup complete message, and send the connection management service request cell to the core network. The second base station is configured to send the paging message to the called terminal in response to the paging message sent by the core network; receive the RRC connection request message sent by the called terminal in response to the paging message; and return an RRC connection setup message to the called terminal in response to the RRC connection request message sent by the called terminal. The called terminal is configured to establish a signaling connection link between the called terminal and the second base station according to the radio link parameter indication information in the RRC connection setup message in response to the RRC connection setup message sent by the second base station; when the signaling connection link is successfully established, send an RRC connection setup complete message to the second base station. The RRC connection setup complete message is used to indicate that the RRC connection with the second base station has been successfully established. The RRC connection setup complete message also includes a paging response cell, which is used to respond to the call request sent to the called terminal. The second base station is further configured to receive the Radio Resource Control (RRC) connection establishment completion message sent by the called terminal, extract the paging response cell from the RRC connection establishment completion message, and send the paging response cell to the core network, so as to establish a call connection between the calling terminal and the called terminal.

13. An electronic device, characterized in that, Comprising: A memory and a processor, where the processor is configured to run a program stored in the memory. When the program runs, it executes the call communication method according to any one of claims 1 to 11.

14. A non-volatile storage medium, characterized in that, The non-volatile storage medium includes a stored computer program. The device where the non-volatile storage medium is located executes the call communication method according to any one of claims 1 to 11 by running the computer program.

15. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the call communication method according to any one of claims 1 to 11.

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