Group call service reconstruction method and device, terminal, medium and product

Abstract

The invention provides a group call service reconstruction method and device, a terminal, a medium and a product, and relates to the technical field of communication. The method comprises the following steps: receiving a group identifier list and a radio network temporary identifier (G-RNTI) of each first group call service sent by a base station through an air interface; when it is determined that the group identifier of the second group call service does not exist in the group identifier list, switching from an idle state to an RRC connection state, and sending an indication parameter to a core network, so that the core network issues a cell switching message to the terminal in response to the indication parameter when identifying that the terminal moves to the edge of the target cell; and analyzing configuration parameters of the second group calling service in the target cell from the cell switching message, and accessing the second group calling service according to the configuration parameters after cell switching is completed. According to the invention, the re-access of the second group calling service can be quickly realized, and the continuity of the second group calling service is further maintained.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method, device, terminal, medium and product for reestablishing a group call service. Background Art

[0002] In the broadband trunking system, a terminal accesses the group call service through the cell where it is located and receives the group call data corresponding to the group call service.

[0003] However, in the existing broadband trunking system, if the terminal accessing the group call service moves, there is no corresponding solution to ensure the continuity of the group call service for the mobile terminal. Specifically, in the B-TrunC Phase II standard, for the mobility problem of idle terminals accessing the group call service, the existing technology generally adopts a neighboring group call configuration solution, that is, the base station and the core network exchange the configuration of all group call services in all cells, and broadcast all the air interface configurations of all group call services in the neighboring cells of the cell where the terminal is located. Due to the large number of group call services initiated / ended, and the large number of configuration parameters for a group call service, and the configuration parameters of the group and group call service that initiates and ends the service are dynamically changing. When the number of group call services increases and / or the number of terminals increases, it is easy to cause the air interface between the base station and the core network to cause a signaling storm due to the huge number of messages when broadcasting messages.

[0004] Therefore, in the signaling storm scenario, the terminal can only obtain synchronization by obtaining configuration parameters through delayed access, which will cause the terminal to be unable to listen to the group call service for a period of time after moving, affecting the continuity of the group call service. Summary of the invention

[0005] The present application provides a group call service reestablishment method, device, terminal, medium and product, which are used to solve the problem of poor continuity of group call service.

[0006] According to a first aspect of the present application, a group call service reestablishment method is provided, which is applied to a terminal in an idle state, and includes:

[0007] receiving a group identifier list and a radio network temporary identifier G-RNTI of each first group call service sent by a base station through an air interface; wherein the air interface is an air interface between the base station and a core network, the group identifier list is a list consisting of group identifiers of all first group call services in each first cell, the first cell is a neighboring cell of the second cell, the second cell is a source cell where the terminal is located, and the first group call service is a group call service in an online state;

[0008] When it is determined that the group identifier of the second group call service does not exist in the group identifier list, switching from the idle state to the RRC connected state, sending an indication parameter to the core network, so that when the core network identifies that the terminal moves to the edge of the target cell, in response to the indication parameter, the terminal sends a cell switching message to the terminal; wherein the second group call service is a group call service being carried out by the terminal in the source cell;

[0009] The configuration parameters of the second group call service in the target cell are parsed from the cell switching message, and after the cell switching is completed, the second group call service is accessed according to the configuration parameters.

[0010] Optionally, after receiving the group identifier list and the radio network temporary identifier G-RNTI of each first group call service sent by the base station through the air interface, the method further includes:

[0011] When it is determined that the group identifier of the second group call service exists in the group identifier list, selecting a target cell from a cell set; wherein the cell set is a set consisting of all first cells in the group call area corresponding to the second group call service;

[0012] After the cell reselection is completed, accessing the group call control channel according to the G-RNTI, and obtaining the configuration parameters of the second group call service in the target cell through the group call control channel;

[0013] Access a group call service channel according to the configuration parameters, and access the second group call service through the group call service channel.

[0014] Optionally, selecting a target cell from a cell set includes:

[0015] Calculate / determine the signal strengths of all first cells in the group call area corresponding to the second group call service;

[0016] The first cell with the largest signal value is determined as the target cell.

[0017] According to a second aspect of the present application, a group call service reestablishment method is provided, which is applied to a base station, and includes:

[0018] Sending a group identifier list and a radio network temporary identifier G-RNTI of each first group call service to the terminal through an air interface, so that the terminal performs the following steps:

[0019] When it is determined that the group identifier of the second group call service does not exist in the group identifier list, switching from the idle state to the RRC connected state, sending an indication parameter to the core network, so that when the core network identifies that the terminal has moved to the edge of the target cell, in response to the indication parameter, the terminal sends a cell switching message to the terminal; parsing the configuration parameters of the second group call service in the target cell from the cell switching message, and accessing the second group call service according to the configuration parameters after the cell switching is completed;

[0020] Among them, the air interface is the air interface between the base station and the core network, the group identifier list is a list composed of group identifiers of all first group call services in each first cell, the first cell is a neighboring cell of the second cell, the second cell is the source cell where the terminal is located, the first group call service is a group call service in an online state; the second group call service is a group call service that the terminal is currently conducting in the source cell.

[0021] According to a third aspect of the present application, a group call service reestablishment device is provided, which is applied to a terminal in an idle state, and includes:

[0022] A receiving module, configured to receive a group identifier list and a wireless network temporary identifier G-RNTI of each first group call service sent by a base station through an air interface; wherein the air interface is an air interface between the base station and a core network, the group identifier list is a list consisting of group identifiers of all first group call services in each first cell, the first cell is a neighboring cell of the second cell, the second cell is a source cell where the terminal is located, and the first group call service is a group call service in an online state;

[0023] a switching sending module, configured to switch from the idle state to the RRC connected state when it is determined that the group identifier of the second group call service does not exist in the group identifier list, and send an indication parameter to the core network, so that when the core network identifies that the terminal moves to the edge of the target cell, the core network responds to the indication parameter and sends a cell switching message to the terminal; wherein the second group call service is a group call service being carried out by the terminal in the source cell;

[0024] The parsing access module is used to parse the configuration parameters of the second group call service in the target cell from the cell switching message, and access the second group call service according to the configuration parameters after the cell switching is completed.

[0025] According to a fourth aspect of the present application, a group call service reestablishment device is provided, which is applied to a base station, including:

[0026] The sending module is used to send the group identifier list and the wireless network temporary identifier G-RNTI of each first group call service to the terminal through the air interface, so that the terminal performs the following steps:

[0027] When it is determined that the group identifier of the second group call service does not exist in the group identifier list, switching from the idle state to the RRC connected state, sending an indication parameter to the core network, so that when the core network identifies that the terminal has moved to the edge of the target cell, in response to the indication parameter, the terminal sends a cell switching message to the terminal; parsing the configuration parameters of the second group call service in the target cell from the cell switching message, and accessing the second group call service according to the configuration parameters after the cell switching is completed;

[0028] Among them, the air interface is the air interface between the base station and the core network, the group identifier list is a list composed of group identifiers of all first group call services in each first cell, the first cell is a neighboring cell of the second cell, the second cell is the source cell where the terminal is located, the first group call service is a group call service in an online state; the second group call service is a group call service that the terminal is currently conducting in the source cell.

[0029] According to a fifth aspect of the present application, a broadband cluster system is provided, comprising a base station, a core network and a terminal connected to each other.

[0030] According to a sixth aspect of the present application, there is provided a terminal, comprising: at least one processor and a memory;

[0031] The memory stores computer-executable instructions;

[0032] The at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the group call service reestablishment method as described in the first aspect and / or the second aspect above.

[0033] According to the seventh aspect of the present application, a computer-readable storage medium is provided, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the group call service reestablishment method described in the first aspect and / or the second aspect above.

[0034] According to an eighth aspect of the present application, a computer program product is provided, including a computer program, which, when executed by a processor, implements the group call service reestablishment method described in the first aspect and / or the second aspect.

[0035] The present application provides a method for reestablishing a group call service, which is applied to a terminal in an idle state, and includes: receiving a group identifier list and a wireless network temporary identifier G-RNTI of each first group call service sent by a base station through an air interface; wherein the air interface is an air interface between a base station and a core network, the group identifier list is a list composed of group identifiers of all first group call services in each first cell, the first cell is a neighboring cell of a second cell, the second cell is a source cell where the terminal is located, and the first group call service is a group call service in an online state; when it is determined that the group identifier of the second group call service does not exist in the group identifier list, switching from an idle state to an RRC connected state, and sending an indication parameter to the core network, so that when the core network identifies that the terminal has moved to the edge of a target cell, in response to the indication parameter, the core network sends a cell switching message to the terminal; wherein the second group call service is a group call service that the terminal is currently carrying out in the source cell; parsing the configuration parameters of the second group call service in the target cell from the cell switching message, and after the cell switching is completed, accessing the second group call service according to the configuration parameters.

[0036] Compared with the prior art, the present application only transmits a small amount of information through the air interface: the group identifier list and the G-RNTI, which can resolve the signaling storm and quickly realize the re-access of the second group call service, thereby maintaining the continuity and real-time performance of the second group call service.

[0037] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0039] Figure 1 A flow chart of a method for reestablishing a group call service provided in an embodiment of the present application;

[0040] Figure 2 A flowchart of another method for reestablishing a group call service provided in an embodiment of the present application;

[0041] Figure 3 A schematic diagram of the structure of a group call service reestablishment device provided in an embodiment of the present application;

[0042] Figure 4 A schematic diagram of the structure of another group call service reestablishment device provided in an embodiment of the present application;

[0043] Figure 5 A schematic diagram of the structure of a broadband cluster system provided in an embodiment of the present application;

[0044] Figure 6 A schematic diagram of the structure of a terminal provided in an embodiment of the present application.

[0045] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0046] Here, exemplary embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application.

[0047] In the existing broadband trunking system, if the terminal accessing the group call service moves, there is no corresponding solution to ensure the continuity of the group call service for the mobile terminal. Specifically, in the B-TrunC Phase II standard, for the mobility problem of idle terminals accessing the group call service, the existing technology generally adopts a neighboring group call configuration solution, that is, the base station and the core network exchange the configuration of all group call services in all cells, and broadcast all the air interface configurations of all group call services in the neighboring cells of the cell where the terminal is located. Due to the large number of group call services initiated / ended, and the large number of configuration parameters of a group call service, and the configuration parameters of the group and group call service that initiates and ends the service are dynamically changing. When the number of group call services increases and / or the number of terminals increases, it is easy to cause the air interface between the base station and the core network to cause a signaling storm due to the huge number of messages when broadcasting messages.

[0048] Therefore, in the signaling storm scenario, the terminal can only obtain synchronization by obtaining configuration parameters through delayed access, which will cause the terminal to be unable to listen to the group call service for a period of time after moving, affecting the continuity of the group call service.

[0049] In order to solve the above technical problems, the overall inventive concept of the present application is to provide a method for maintaining group call service continuity in the communication field.

[0050] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0051] Embodiment 1:

[0052] Figure 1 A flow chart of a method for reestablishing a group call service provided in an embodiment of the present application. Figure 1 As shown, the method of this embodiment is applied to a terminal in an idle state, and includes the following steps:

[0053] S10: Receive a group identity list and a Group-Radio Network Temporary Identity (G-RNTI) of each first group call service sent by a base station through an air interface.

[0054] Among them, the air interface is the air interface between the base station and the core network, the group identifier list is a list composed of the group identifiers of all first group call services in each first cell, the first cell is a neighboring cell of the second cell, the second cell is the source cell where the terminal is located, and the first group call service is a group call service in an online state.

[0055] It should be understood that the first cell may be referred to as a neighboring cell. The group call service in the online state refers to the group call service being sent.

[0056] S20. When it is determined that the group identifier of the second group call service does not exist in the group identifier list, switch from the idle state to the radio resource control (RRC) connected state, and send an indication parameter to the core network, so that when the core network identifies that the terminal has moved to the edge of the target cell, the core network responds to the indication parameter and sends a cell switching message to the terminal.

[0057] The second group call service is a group call service being performed by the terminal in the source cell.

[0058] S30: parse the configuration parameters of the second group call service in the target cell from the cell switching message, and access the second group call service according to the configuration parameters after the cell switching is completed.

[0059] It should be understood that the configuration parameters of the second group call service in the target cell may be referred to as the target cell group call configuration.

[0060] Compared with the prior art, in the embodiment of the present application, only a small amount of information is transmitted through the air interface in step S10: the group identifier list and the G-RNTI. Therefore, the embodiment of the present application can resolve the signaling storm and can also quickly realize the re-access of the second group call service, thereby maintaining the continuity and real-time nature of the second group call service.

[0061] In a possible implementation, after step S10, receiving the group identifier list and the radio network temporary identifier G-RNTI of each first group call service sent by the base station through the air interface, the method further includes:

[0062] S40: When it is determined that the group identifier of the second group call service exists in the group identifier list, a target cell is selected from a cell set, wherein the cell set is a set consisting of all first cells in the group call area corresponding to the second group call service.

[0063] S50: After the cell reselection is completed, access the group call control channel according to the G-RNTI, and obtain the configuration parameters of the second group call service in the target cell through the group call control channel.

[0064] It should be understood that the configuration parameters of the second group call service in the target cell may be referred to as group call configuration parameters.

[0065] S60: Access the group call service channel according to the configuration parameters, and access the second group call service through the group call service channel.

[0066] In order to maintain the continuity of the group call service of the terminal in the idle state in the B-TrunC phase II standard, the embodiment of the present application broadcasts the group identifier list of each neighboring cell that is sending the group call service, and the G-RNTI corresponding to each group call service in the air interface. After the cell is reselected, the terminal first receives the group call control channel according to the G-RNTI of the group call service, obtains the group call configuration parameters; then receives the group call service channel according to the group call configuration parameters, and then receives the second group call service.

[0067] In a possible implementation, in step S40, selecting a target cell from a cell set includes the following steps:

[0068] S201. Calculate / determine signal strengths of all first cells in a group call area corresponding to a second group call service.

[0069] S202: Determine the first cell with the largest signal value as the target cell.

[0070] In the above technical solution, the target cell is selected by determining the first cell with the largest signal value as the target cell. This embodiment can improve the timeliness of the terminal performing the second group call service.

[0071] In summary, the group call service reestablishment method provided in the embodiment of the present application can be applied to the idle terminal mobility scenario carrying the second group call service. The scheme includes the following steps:

[0072] Step 1: broadcast the group ID list of the group call service being sent to each neighboring cell of the source cell where the terminal is located, and the G-RNTI corresponding to each group call service. Compared with the two-stage broadcast of all configuration parameters (including air interface layer 1, layer 2 and layer 3 parameters) of each group call service in B-TrunC in this embodiment, the embodiment of the present application can reduce the signaling load by 90%.

[0073] Next, according to whether the terminal finds the search result of the group ID of the group call service currently being received by the terminal in the group ID list of the group call service being sent by some neighboring cells, it is selected to enter branch A or branch B.

[0074] Specifically, for branch A:

[0075] Step 2A: If the terminal finds the group ID of the group call service currently being received by the terminal in the group ID list of the group call service being sent by some neighboring cells, the terminal preferentially selects the neighboring cell with the strongest signal among these neighboring cells for cell reselection.

[0076] Step 3A: After cell reselection, the terminal receives the group call control channel according to the G-RNTI corresponding to the group call service obtained in step 1, and obtains the group call configuration parameters.

[0077] Step 4A: The terminal receives the group call service channel according to the group call configuration parameters, and then receives the group call service, thereby ensuring the continuity of the group call service of the idle terminal.

[0078] Specifically, for branch B, this embodiment can switch the terminal state, thereby achieving the continuity of the group call service:

[0079] Step 2B: If the terminal does not find the group ID of the group call service currently being received by the terminal in the group ID list of the group call service being sent by each neighboring area, the terminal actively enters the RRC connection state and sends the parameter "the group ID of the group call service currently being received by the terminal" to the network (i.e. the above-mentioned core network).

[0080] Step 3B: When the terminal moves to the cell edge, the network notifies the terminal to perform a handover and carries the target cell group call configuration in the handover message.

[0081] Step 4B: After the terminal is switched, the group call configuration provided in step 3B is used to receive the group call service, thereby ensuring the continuity of the group call service of the idle terminal.

[0082] Embodiment 2:

[0083] Figure 2 A flow chart of another method for reestablishing a group call service provided in an embodiment of the present application. Figure 2 As shown, it is applied to a base station and includes the following steps:

[0084] S21: Send a group identifier list and a wireless network temporary identifier G-RNTI of each first group call service to the terminal through the air interface, so that the terminal can perform the following steps: when it is determined that the group identifier of the second group call service does not exist in the group identifier list, switch from the idle state to the RRC connected state, and send an indication parameter to the core network, so that when the core network identifies that the terminal has moved to the edge of the target cell, it responds to the indication parameter and sends a cell switching message to the terminal; parse the configuration parameters of the second group call service in the target cell from the cell switching message, and after the cell switching is completed, access the second group call service according to the configuration parameters.

[0085] Among them, the air interface is the air interface between the base station and the core network, the group identifier list is a list composed of the group identifiers of all first group call services in each first cell, the first cell is the neighboring cell of the second cell, the second cell is the source cell where the terminal is located, the first group call service is a group call service in the online state; the second group call service is the group call service that the terminal is currently carrying out in the source cell.

[0086] Compared with the prior art, in the embodiment of the present application, only a small amount of information is transmitted through the air interface in step S10: the group identifier list and the G-RNTI. Therefore, the embodiment of the present application can resolve the signaling storm and can also quickly realize the re-access of the second group call service, thereby maintaining the continuity and real-time nature of the second group call service.

[0087] Embodiment 3:

[0088] Figure 3 Schematic diagram of the structure of a group call service reestablishment device provided in an embodiment of the present application. The device of this embodiment may be in the form of software and / or hardware. Figure 3 As shown, the device of this embodiment is applied to a terminal in an idle state, and includes the following modules:

[0089] The receiving module 31 is used to receive the group identifier list and the wireless network temporary identifier G-RNTI of each first group call service sent by the base station through the air interface; wherein the air interface is the air interface between the base station and the core network, the group identifier list is a list composed of the group identifiers of all first group call services in each first cell, the first cell is a neighboring cell of the second cell, the second cell is the source cell where the terminal is located, and the first group call service is a group call service in an online state.

[0090] The switching sending module 32 is used to switch from the idle state to the RRC connected state when it is determined that the group identifier of the second group call service does not exist in the group identifier list, and send an indication parameter to the core network, so that when the core network identifies that the terminal has moved to the edge of the target cell, it responds to the indication parameter and sends a cell switching message to the terminal; wherein the second group call service is a group call service that the terminal is currently conducting in the source cell.

[0091] The parsing access module 33 is used to parse the configuration parameters of the second group call service in the target cell from the cell switching message, and access the second group call service according to the configuration parameters after the cell switching is completed.

[0092] In a possible implementation, the group call service reestablishment device is further used for:

[0093] When it is determined that the group identifier of the second group call service exists in the group identifier list, a target cell is selected from a cell set; wherein the cell set is a set consisting of all first cells in the group call area corresponding to the second group call service.

[0094] After the cell reselection is completed, the group call control channel is accessed according to the G-RNTI, and the configuration parameters of the second group call service in the target cell are obtained through the group call control channel.

[0095] Access the group call service channel according to the configuration parameters, and access the second group call service through the group call service channel.

[0096] In a possible implementation, the group call service reestablishment device is further used for:

[0097] Calculate / determine the signal strengths of all first cells within the group call area corresponding to the second group call service.

[0098] The first cell with the largest signal value is determined as the target cell.

[0099] The group call service reestablishment device provided in this embodiment can be used to execute the group call service reestablishment method provided in Embodiment 1. The implementation principle and technical effect thereof are similar and will not be described in detail here.

[0100] Embodiment 4:

[0101] Figure 4 This is a schematic diagram of the structure of another group call service reestablishment device provided in an embodiment of the present application. The device of this embodiment may be in the form of software and / or hardware. Figure 4 As shown, the device of this embodiment is applied to a base station and includes the following modules:

[0102] The sending module 41 is used to send the group identifier list and the radio network temporary identifier G-RNTI of each first group call service to the terminal through the air interface, so that the terminal performs the following steps:

[0103] When it is determined that the group identifier of the second group call service does not exist in the group identifier list, the idle state is switched to the RRC connected state, and an indication parameter is sent to the core network, so that when the core network identifies that the terminal has moved to the edge of the target cell, the core network responds to the indication parameter and sends a cell switching message to the terminal; the configuration parameters of the second group call service in the target cell are parsed from the cell switching message, and after the cell switching is completed, the second group call service is accessed according to the configuration parameters.

[0104] Among them, the air interface is the air interface between the base station and the core network, the group identifier list is a list composed of the group identifiers of all first group call services in each first cell, the first cell is the neighboring cell of the second cell, the second cell is the source cell where the terminal is located, the first group call service is a group call service in the online state; the second group call service is the group call service that the terminal is currently carrying out in the source cell.

[0105] The group call service reestablishment device provided in this embodiment can be used to execute the group call service reestablishment method provided in Embodiment 2. The implementation principle and technical effect thereof are similar and will not be described in detail here.

[0106] Embodiment 5:

[0107] Figure 5 The following is a schematic diagram of the structure of a broadband cluster system provided in an embodiment of the present application. Figure 5 As shown, the broadband cluster system includes a base station 51, a core network 52 and a terminal 53 which are interconnected.

[0108] The terminal 53 and the base station 51 in the broadband trunking system provided in this embodiment respectively execute the group call service reestablishment methods provided in Embodiments 1 and 2, and their implementation principles and technical effects are similar, which will not be described in detail here.

[0109] It should be noted that the user information and data involved in this application (including but not limited to data used for analysis, stored data, displayed data, etc.) are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards of relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0110] That is to say, in the technical solution of this application, the collection, storage, use, processing, transmission, provision and disclosure of user personal information involved are in compliance with the relevant laws and regulations and do not violate public order and good morals.

[0111] According to an embodiment of the present application, the present application also provides a terminal, a readable storage medium and a computer program product.

[0112] Figure 6 A schematic diagram of the structure of a terminal provided in an embodiment of the present application. The terminal includes a receiver 60, a transmitter 61, at least one processor 62 and a memory 63. The terminal composed of the above components can be used to implement the above-mentioned several specific embodiments of the present application, which will not be repeated here.

[0113] The embodiment of the present application further provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, each step of the method in the above embodiment is implemented.

[0114] An embodiment of the present application also provides a computer program product, including a computer program, which implements each step of the method in the above embodiment when executed by a processor.

[0115] Various embodiments of the systems and techniques described above in the present application can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include: being implemented in one or more computer programs, which can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor, which can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0116] The program code for implementing the method of the present application can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code can be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or electronic device.

[0117] In the context of the present application, a computer-readable storage medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A computer-readable storage medium may be a machine-readable signal medium or a machine-readable storage medium. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. A more specific example of a computer-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0118] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0119] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data electronic device), or a computing system that includes middleware components (e.g., an application electronic device), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0120] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps disclosed in this application can be performed in parallel, sequentially or in different orders, as long as the desired results of the technical solution disclosed in this application can be achieved, and this document does not limit this.

[0121] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the principles of this application should be included in the protection scope of this application.

Claims

1. A method for reestablishing a group call service, characterized in that: Applicable to idle terminals, including: receiving a group identifier list and a radio network temporary identifier G-RNTI of each first group call service sent by a base station through an air interface; wherein the air interface is an air interface between the base station and a core network, the group identifier list is a list consisting of group identifiers of all first group call services in each first cell, the first cell is a neighboring cell of the second cell, the second cell is a source cell where the terminal is located, and the first group call service is a group call service in an online state; When it is determined that the group identifier of the second group call service does not exist in the group identifier list, switching from the idle state to the RRC connected state, sending an indication parameter to the core network, so that when the core network identifies that the terminal moves to the edge of the target cell, in response to the indication parameter, the terminal sends a cell switching message to the terminal; wherein the second group call service is a group call service being carried out by the terminal in the source cell; The configuration parameters of the second group call service in the target cell are parsed from the cell switching message, and after the cell switching is completed, the second group call service is accessed according to the configuration parameters.

2. The method according to claim 1, characterized in that After the receiving base station sends the group identifier list and the radio network temporary identifier G-RNTI of each first group call service through the air interface, the method further includes: When it is determined that the group identifier of the second group call service exists in the group identifier list, a target cell is selected from a cell set; wherein the cell set is a set consisting of all first cells in the group call area corresponding to the second group call service; After the cell reselection is completed, accessing the group call control channel according to the G-RNTI, and obtaining the configuration parameters of the second group call service in the target cell through the group call control channel; Access a group call service channel according to the configuration parameters, and access the second group call service through the group call service channel.

3. The method according to claim 2, characterized in that Select a target cell from a set of cells, including: Calculate / determine the signal strengths of all first cells in the group call area corresponding to the second group call service; The first cell with the largest signal value is determined as the target cell.

4. A method for reestablishing a group call service, characterized in that: Applied to base stations, including: Sending a group identifier list and a radio network temporary identifier G-RNTI of each first group call service to the terminal through an air interface, so that the terminal performs the following steps: When it is determined that the group identifier of the second group call service does not exist in the group identifier list, switching from the idle state to the RRC connected state, sending an indication parameter to the core network, so that when the core network identifies that the terminal has moved to the edge of the target cell, in response to the indication parameter, the terminal sends a cell switching message to the terminal; parsing the configuration parameters of the second group call service in the target cell from the cell switching message, and accessing the second group call service according to the configuration parameters after the cell switching is completed; Among them, the air interface is the air interface between the base station and the core network, the group identifier list is a list composed of group identifiers of all first group call services in each first cell, the first cell is a neighboring cell of the second cell, the second cell is the source cell where the terminal is located, the first group call service is a group call service in an online state; the second group call service is a group call service that the terminal is currently conducting in the source cell.

5. A group call service reestablishment device, characterized in that: Applicable to idle terminals, including: A receiving module, configured to receive a group identifier list and a wireless network temporary identifier G-RNTI of each first group call service sent by a base station through an air interface; wherein the air interface is an air interface between the base station and a core network, the group identifier list is a list consisting of group identifiers of all first group call services in each first cell, the first cell is a neighboring cell of the second cell, the second cell is a source cell where the terminal is located, and the first group call service is a group call service in an online state; a switching sending module, configured to switch from the idle state to the RRC connected state when it is determined that the group identifier of the second group call service does not exist in the group identifier list, and send an indication parameter to the core network, so that when the core network identifies that the terminal moves to the edge of the target cell, the core network responds to the indication parameter and sends a cell switching message to the terminal; wherein the second group call service is a group call service being carried out by the terminal in the source cell; The parsing access module is used to parse the configuration parameters of the second group call service in the target cell from the cell switching message, and access the second group call service according to the configuration parameters after the cell switching is completed.

6. A group call service reestablishment device, characterized in that: Applied to base stations, including: The sending module is used to send the group identifier list and the wireless network temporary identifier G-RNTI of each first group call service to the terminal through the air interface, so that the terminal performs the following steps: When it is determined that the group identifier of the second group call service does not exist in the group identifier list, switching from the idle state to the RRC connected state, sending an indication parameter to the core network, so that when the core network identifies that the terminal has moved to the edge of the target cell, in response to the indication parameter, the terminal sends a cell switching message to the terminal; parsing the configuration parameters of the second group call service in the target cell from the cell switching message, and accessing the second group call service according to the configuration parameters after the cell switching is completed; Among them, the air interface is the air interface between the base station and the core network, the group identifier list is a list composed of group identifiers of all first group call services in each first cell, the first cell is a neighboring cell of the second cell, the second cell is the source cell where the terminal is located, the first group call service is a group call service in an online state; the second group call service is a group call service that the terminal is currently conducting in the source cell.

7. A broadband cluster system, characterized in that: Includes interconnected base stations, core networks and terminals.

8. A terminal, characterized in that: include: at least one processor and memory; The memory stores computer-executable instructions; The at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the group call service reestablishment method according to any one of claims 1 to 4.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the group call service reestablishment method according to any one of claims 1 to 4.

10. A computer program product, characterized in that The invention comprises a computer program, which, when executed by a processor, implements the group call service reestablishment method according to any one of claims 1 to 4.

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