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

Abstract

The application 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 group radio network temporary identifier (G-RNTI) of each first group call service sent by a base station through an air interface; switching from an idle state to an RRC connection state when it is determined that the group identifier list does not contain a group identifier of a second group call service, and sending an indication parameter to a core network, so that the core network, in response to the indication parameter, issues a cell handover message to the terminal when it identifies that the terminal moves to the edge of a target cell; parsing configuration parameters of the second group call service in the target cell from the cell handover message, and accessing the second group call service according to the configuration parameters after the cell handover is completed. The application can quickly realize the reaccess of the second group call service, thereby maintaining the continuity of the second group call service.

Description

TECHNICAL FIELD

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

[0002] In a broadband trunking system, a terminal accesses a group call service through a cell where the terminal is located, and receives 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 of the moving terminal. Specifically, in the B-TrunC two-stage standard, for the mobility problem of the idle state terminal accessing the group call service, the existing technology generally adopts a neighbor cell group call configuration scheme, that is, the base station and the core network exchange the configuration of all group call services in all cells, and broadcast all air interface configurations of all group call services in the neighbor cells of the cell where the terminal is located. Because the number of initiated / terminated group call services is large, and the configuration parameters of a group call service are many, and the group and the configuration parameters of the group call service are dynamically changing when the service is initiated and terminated. When the number of group call services and / or the number of terminals increases, it is easy to cause a signaling storm in the air interface between the base station and the core network when broadcasting messages due to the large number of messages.

[0004] Therefore, in the scenario of a signaling storm, the terminal can only obtain synchronization by accessing the configuration parameters late, which will cause the terminal to be unable to hear the group call service for a period of time after moving, affecting the continuity of the group call service. SUMMARY

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

[0006] According to a first aspect of the present application, a group call service reconstruction method is provided, applied to an idle state terminal, comprising:

[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 composed of group identifiers of all first group call services in each first cell, the first cell is a neighbor 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;

[0008] switching from the idle state to an RRC connected state when it is determined that there is no group identity of a second group call service in the group identity list, and sending an indication parameter to the core network, so that the core network, in response to the indication parameter, issues a cell handover message to the terminal when it identifies that the terminal moves to the edge of a target cell; wherein the second group call service is a group call service that the terminal is currently engaged in in the source cell;

[0009] parsing configuration parameters of the second group call service in the target cell from the cell handover message, and accessing the second group call service according to the configuration parameters after cell handover is completed.

[0010] Optionally, after the group identity list and the G-RNTI of each first group call service are sent by the receiving base station through the air interface, the method further comprises:

[0011] selecting a target cell from a cell set when it is determined that there is a group identity of a second group call service in the group identity list; wherein the cell set is a set of all first cells in a group call area corresponding to the second group call service;

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

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

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

[0015] calculating / determining the signal size of all first cells in a group call area corresponding to the second group call service;

[0016] determining the first cell with the largest signal value as the target cell.

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

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

[0019] switch from the idle state to an RRC connected state, and send an indication parameter to a core network, so that the core network, in response to the indication parameter, sends a cell switching message to the terminal when it identifies that the terminal moves to the edge of a target cell; parse 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 cell switching is completed;

[0020] The air interface is an air interface between the 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 in which a terminal is located, and the first group call service is a group call service in an online state.

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

[0022] The receiving module is configured to receive 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, where the air interface is an air interface between the 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 in which a terminal is located, and the first group call service is a group call service in an online state.

[0023] The switching sending module is configured to switch from the idle state to an RRC connected state when it is determined that there is no group identifier of a second group call service in the group identifier list, and send an indication parameter to the core network, so that the core network, in response to the indication parameter, sends a cell switching message to the terminal when it identifies that the terminal moves to the edge of a target cell, where the second group call service is a group call service being performed by the terminal in the source cell.

[0024] The parsing and accessing module is configured to parse 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 cell switching is completed.

[0025] According to a fourth aspect of the present application, a group call service reconstruction apparatus applied to a base station is provided, and the apparatus includes:

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

[0027] switching 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, sending an indication parameter to the core network, so that the core network, in response to the indication parameter, issues a cell handover message to the terminal when it is identified that the terminal moves to the edge of the target cell; parsing the configuration parameter of the second group call service in the target cell from the cell handover message, and accessing the second group call service according to the configuration parameter after the cell handover is completed;

[0028] The air interface is an 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 a second cell, the second cell is a source cell of a terminal, and the first group call service is a group call service in an online state. The second group call service is a group call service being performed by the terminal in the source cell.

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

[0030] According to a sixth aspect of the present application, a terminal is provided, including at least one processor and a memory.

[0031] The memory stores computer execution instructions.

[0032] The at least one processor executes the computer execution instructions stored in the memory, so that the at least one processor executes the group call service reconstruction method according to the first aspect and / or the second aspect.

[0033] According to a seventh aspect of the present application, a computer readable storage medium is provided, and the computer readable storage medium stores computer execution instructions. The computer execution instructions are executed by a processor to implement the group call service reconstruction method according to the first aspect and / or the second aspect.

[0034] According to an eighth aspect of the present application, a computer program product is provided, including a computer program. The computer program is executed by a processor to implement the group call service reconstruction method according to the first aspect and / or the second aspect.

[0035] The application provides a group call service reconstruction method applied to a terminal in an idle state, comprising the following steps: receiving a group identifier list and a group 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 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 of the terminal, and the first group call service is a group call service in an online state; when it is determined that the group identifier list does not contain a group identifier of a second group call service, switching from the idle state to an RRC connection state, and sending an indication parameter to the core network, so that the core network sends a cell switching message to the terminal in response to the indication parameter when it is identified that the terminal moves to the edge of a target cell; wherein the second group call service is a group call service being performed by the terminal in the source cell; and parsing 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.

[0036] Compared with the prior art, the application only transmits a small amount of information, i.e., the group identifier list and the G-RNTI, through the air interface, can eliminate the signaling storm, and can 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 part is not intended to identify key or important features of the embodiments of the application, nor is it used to limit the scope of the application. Other features of the application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0038] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application.

[0039] Figure 1 A flowchart of a group call service reconstruction method provided by an embodiment of the application;

[0040] Figure 2 A flowchart of another group call service reconstruction method provided by an embodiment of the application;

[0041] Figure 3 A structural diagram of a group call service reconstruction device provided by an embodiment of the application;

[0042] Figure 4 A structural diagram of another group call service reconstruction device provided by an embodiment of the application;

[0043] Figure 5 A structural diagram of a broadband trunking system provided by an embodiment of the application;

[0044] Figure 6 Fig. 1 is a schematic diagram of a terminal structure according to an embodiment of the present application.

[0045] The above-described embodiments of the present application have been shown and described with reference to the accompanying drawings. These drawings and detailed description are not intended to limit the scope of the present application in any way. Rather, they are meant to suggest the scope of the present application to those skilled in the art. DETAILED DESCRIPTION

[0046] The exemplary embodiments will be described in detail with reference to the drawings. Unless otherwise noted, the same or similar components in different drawings are denoted by the same or similar reference numerals. The embodiments described in the following exemplary embodiments are not meant to represent all embodiments consistent with the present application.

[0047] In the existing wideband trunking system, if a terminal accessing a group call service moves, there is no corresponding solution to ensure the continuity of the group call service of the moving terminal. Specifically, in the B-TrunC two-stage standard, for the mobility problem of an idle-state terminal accessing a group call service, the existing technology generally adopts a neighbor group call configuration scheme, that is, a base station and a core network exchange the configurations of all group call services in all cells, and broadcast all air interface configurations of all group call services in the neighbor cells of the cell where the terminal is located. Because the number of initiated / terminated group call services is large, and the configuration parameters of one group call service are many, and the group and the configuration parameters of the group call service of the initiated service and the terminated service are dynamically changing. When the number of group call services and / or the number of terminals increases, it is easy to cause a signaling storm in the air interface between the base station and the core network when broadcasting messages due to the huge number of messages.

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

[0049] To solve the above technical problem, the overall inventive concept of the present application is how to provide a method applied to the field of communication for maintaining the continuity of a group call service.

[0050] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be 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 can not be described again in some embodiments. The embodiments of the present application will be described below with reference to the drawings.

[0051] Embodiment 1:

[0052] Figure 1 A flowchart of a group call service reconstruction method provided by an embodiment of the application is shown. As shown in the figure, the method of the embodiment is applied to a terminal in an idle state and includes the following steps: Figure 1

[0053] S10, receiving a group identity list and a radio network temporary identity (G-RNTI) of each first group call service sent by a base station through an air interface.

[0054] The air interface is an air interface between the base station and a core network, the group identity list is a list composed of group identities of all first group call services in a 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.

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

[0056] S20, switching from the idle state to a radio resource control (RRC) connected state when it is determined that the group identity list does not include a group identity of a second group call service, and sending an indication parameter to the core network, so that the core network sends a cell handover message to the terminal in response to the indication parameter when it is identified that the terminal moves to an edge of a target cell.

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

[0058] S30, parsing configuration parameters of the second group call service in the target cell from the cell handover message, and accessing the second group call service according to the configuration parameters after the cell handover is completed.

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

[0060] Compared with the prior art, the embodiment of the application only transmits a small amount of information, i.e., the group identity list and the G-RNTI, through the air interface in step S10, so that the embodiment of the application can eliminate the signaling storm, and at the same time, quickly implement reaccess of the second group call service, thereby maintaining continuity and real-time performance of the second group call service.

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

[0062] ​S40, selecting a target cell from the cell set when it is determined that the group identity of the second group call service exists in the group identity list, wherein the cell set is a set composed of all first cells in the group call area corresponding to the second group call service.

[0063] S50, accessing the group call control channel according to the G-RNTI after the cell reselection is completed, and obtaining the configuration parameter of the second group call service in the target cell through the group call control channel.

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

[0065] S60, accessing the group call service channel according to the configuration parameter, and accessing the second group call service through the group call service channel.

[0066] To maintain the group call service continuity of the terminal in the idle state in the B-TrunC two-stage standard, the embodiment of the application broadcasts the group identity list of the group call service being transmitted by each neighboring cell and the G-RNTI corresponding to each group call service on the air interface. After cell reselection, the terminal first receives the group call control channel according to the G-RNTI of the group call service, obtains the group call configuration parameter, and then receives the group call service channel according to the group call configuration parameter, and further receives the second group call service.

[0067] In a possible implementation, in step S40, the target cell is selected from the cell set, including the following steps:

[0068] S201, calculating / determining the signal size of all first cells in the group call area corresponding to the second group call service.

[0069] S202, determining 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, and the embodiment can improve the timeliness of the terminal for the second group call service.

[0071] In summary, the group call service reconstruction method provided by the embodiment of the application can be applied to the idle state terminal mobility scenario carrying the second group call service, and the scheme includes the following steps:

[0072] Step 1, broadcasting the group identity list of the group call service being transmitted by each neighboring cell of the source cell of the terminal and the G-RNTI corresponding to each group call service on the air interface. Compared with the B-TrunC two-stage broadcasting of all configuration parameters (including air interface layer 1, layer 2 and layer 3 parameters) of each group call service, the broadcasting of less information in the embodiment of the application can reduce the signaling load by 90%.

[0073] The terminal enters branch A or branch B according to the search result of whether the group identity of the group call service currently received by the terminal is found in the list of group identities of the group call services being transmitted by some neighbor cells.

[0074] Specifically, for branch A:

[0075] Step 2A: If the group identity of the group call service currently received by the terminal is found in the list of group identities of the group call services being transmitted by some neighbor cells, the terminal preferentially selects the neighbor cell with the strongest signal among the neighbor cells for cell reselection.

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

[0077] Step 4A: The terminal receives a group call service channel according to the group call configuration parameters, and further receives the group call service. Thus, the group call service continuity of the idle-state terminal is ensured.

[0078] Specifically, for branch B, the terminal state can be switched, and the group call service continuity can be achieved:

[0079] Step 2B: If the group identity of the group call service currently received by the terminal is not found in the list of group identities of the group call services being transmitted by each neighbor cell, the terminal actively enters an RRC connected state, and sends a parameter "group identity of the group call service currently received by the terminal" to the network (i.e., the core network).

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

[0081] Step 4B: After the terminal completes switching, the terminal receives the group call service using the group call configuration provided in step 3B. Thus, the group call service continuity of the idle-state terminal is ensured.

[0082] Embodiment 2:

[0083] Figure 2 Another group call service reestablishment method provided by the embodiment of the application is shown in a flowchart. As shown in FIG. 2, the method is applied to a base station and includes the following steps: Figure 2

[0084] ​S21: sending, to the terminal, a group identity list and a radio network temporary identifier G-RNTI of each first group call service via an air interface, so that the terminal performs the following steps: switching from an idle state to an RRC connected state when it is determined that there is no group identity of a second group call service in the group identity list, and sending an indication parameter to a core network, so that the core network, in response to the indication parameter, issues a cell handover message to the terminal when it identifies that the terminal moves to an edge of a target cell; and parsing the configuration parameter of the second group call service in the target cell from the cell handover message, and accessing the second group call service according to the configuration parameter after the cell handover is completed.

[0085] The air interface is an air interface between the base station and the core network, the group identity list is a list composed of group identities 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.

[0086] Compared with the prior art, the embodiment of the present application only transmits a small amount of information, i.e., the group identity list and the G-RNTI, via the air interface in step S10, so that the embodiment of the present application can eliminate the signaling storm, and at the same time, quickly realize reaccess of the second group call service, thereby maintaining the continuity and real-time performance of the second group call service.

[0087] Embodiment 3:

[0088] Figure 3 A structural schematic diagram of a group call service reconstruction device provided by the embodiment of the present application is shown in FIG. 1. The device of the embodiment can be in the form of software and / or hardware. As shown in FIG. 1, the device of the embodiment, applied to a terminal in an idle state, includes the following modules: Figure 3

[0089] The receiving module 31 is configured to receive the group identity list and the G-RNTI of each first group call service sent by the base station via the air interface. The air interface is an air interface between the base station and the core network, the group identity list is a list composed of group identities 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.

[0090] The switching and sending module 32 is configured to switch from an idle state to an RRC connected state when it is determined that there is no group identity of a second group call service in the group identity list, and send an indication parameter to a core network, so that the core network, in response to the indication parameter, issues a cell handover message to the terminal when it identifies that the terminal moves to an edge of a target cell. The second group call service is a group call service being performed by the terminal in the source cell.

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

[0092] In one possible implementation, the call service reconstruction device is also used for:

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

[0094] After cell reselection is completed, the group call control channel is accessed according to 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 one possible implementation, the call service reconstruction device is also used for:

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

[0098] The cell with the highest signal strength is selected as the target cell.

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

[0100] Example 4:

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

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

[0103] When the group identifier for the second group call service does not exist in the group identifier list, the system switches from idle state to RRC connected state and sends an indication parameter to the core network. This allows the core network to send a cell handover message to the terminal in response to the indication parameter when it detects that the terminal has moved to the edge of the target cell. The system then parses the configuration parameters of the second group call service in the target cell from the cell handover message and accesses the second group call service according to the configuration parameters after the cell handover is completed.

[0104] Wherein, the air interface is an 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 the first cell, the first cell is a neighbor 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.

[0105] The group call service reconstruction device provided in this embodiment can be used to execute the group call service reconstruction method provided in Embodiment 2, and has similar implementation principles and technical effects, which will not be described here.

[0106] Embodiment 5

[0107] Figure 5 A structural schematic diagram of a broadband trunking system is provided in this embodiment. As shown in the figure, the broadband trunking system includes a base station 51, a core network 52 and a terminal 53 which are connected to each other. Figure 5

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

[0109] It should be noted that the user information and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the present application are all information and data authorized by the user or authorized by all parties, and the collection, use and processing of related data need to comply with relevant laws, regulations and standards of relevant countries and regions, and provide corresponding operation portal for user to choose authorization or refusal.

[0110] That is, in the technical solution of the present application, the collection, storage, use, processing, transmission, provision and disclosure of user personal information involved in the technical solution of the present application all comply with the provisions of relevant laws and regulations and do not violate public order and good customs.

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

[0112] Figure 6 A structural schematic diagram of a terminal is provided in this embodiment. 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 several specific embodiments of the present application, which will not be described here.

[0113] ​The embodiment of the present application further provides a computer readable storage medium, and the computer readable storage medium stores computer execution instructions. When a processor executes the computer execution instructions, each step in the method in the above embodiment is implemented.

[0114] The embodiment of the present application further provides a computer program product, which comprises a computer program. When the computer program is executed by a processor, each step in the method in the above embodiment is implemented.

[0115] Various embodiments of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on a chip (SOC), a programmable logic device (PLD), a computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0116] Program code for carrying out the methods of the present application can be written in any combination of one or more programming languages. This program code can be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the program code, when executed by the processor or controller, produces the functions / operations specified in the flowcharts and / or the block diagrams. The program code can be executed entirely on a machine, partially on a machine, partially on a machine as a stand-alone software package, partially on a machine and partially on a remote machine or entirely on a remote machine or electronic device.

[0117] In the context of this application, a computer-readable storage medium can be a tangible medium that can contain or store a program for use by or in connection with an instruction execution system, apparatus, or device. A computer-readable storage medium can be a machine-readable signal medium or a machine-readable storage medium. A computer-readable storage medium can include but is not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a computer-readable storage medium can include an electrical connection based on one or more wires, 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 disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0118] To provide for interaction with a user, the systems and techniques described here 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 a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the computer. Other kinds of devices can be used to provide for interaction with a user as well; for example, 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, speech, or tactile input.

[0119] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a client computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, 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 various forms of flow shown above can be re-ordered, added to, or deleted from without departing from the spirit of the present disclosure. For example, the steps recited in the present disclosure can be performed in parallel, in series, or in a different order, as long as the desired results of the present disclosure are achieved, and the present disclosure is not limited herein.

[0121] The foregoing detailed description has set forth various embodiments of the devices and / or processes via the use of specific terminology. However, embodiments thereof can be practiced with the exact description not being set forth but with the same essence; the principles set forth herein can be practiced to achieve the present application. The scope of protection is not limited to the embodiments described and shown.

Claims

1. A method for rebuilding group call services, characterized in that, Terminals applied to the idle state include: The base station receives a list of group identifiers and a temporary radio network identifier (G-RNTI) for each first group call service sent via the air interface; wherein, the air interface is the air interface between the base station and the core network, the list of group identifiers 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. When it is determined that there is no group identifier for the second group call service in the group identifier list, the system switches from the idle state to the RRC connected state and sends an indication parameter to the core network. This allows the core network to send a cell handover message to the terminal in response to the indication parameter when it detects that the terminal has moved to the edge of the target cell. The second group call service is the group call service that the terminal is currently performing in the source cell. The configuration parameters of the second group of call services in the target cell are parsed from the cell handover message, and the second group of call services are accessed according to the configuration parameters after the cell handover is completed.

2. The method according to claim 1, characterized in that, After the receiving base station transmits the group identifier list and the radio network temporary identifier (G-RNTI) of each first group call service via the air interface, the method further includes: When it is determined that a group identifier for a second group call service exists in the group identifier list, a target cell is selected from the cell set; wherein, the cell set is a set consisting of all first cells within the group call area corresponding to the second group call service; After 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. Access the 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 the target cell from the cell set, including: Calculate / determine the signal strength of all first cells within the call area corresponding to the second group of call services; The cell with the highest signal strength is selected as the target cell.

4. A method for rebuilding group call services, characterized in that, Applied to base stations, including: The group identifier list and the radio network temporary identifier (G-RNTI) of each first group call service are sent to the terminal via the air interface, so that the terminal can perform the following steps: When it is determined that there is no group identifier for the second group call service in the group identifier list, the system switches from idle state to RRC connected state and sends an indication parameter to the core network. This allows the core network to send a cell handover message to the terminal in response to the indication parameter when it detects that the terminal has moved to the edge of the target cell. The system then parses the configuration parameters of the second group call service in the target cell from the cell handover message and accesses the second group call service according to the configuration parameters after the cell handover is completed. 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, the first group call service is a group call service in an online state, and the second group call service is a group call service that the terminal is currently performing in the source cell.

5. A group call service reconstruction device, characterized in that, Terminals applied to the idle state include: The receiving module is used to receive 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; 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 the online state; The switching transmission module is used to switch from the idle state to the RRC connected state when it is determined that there is no group identifier for the second group call service in the group identifier list, and send an indication parameter to the core network. This allows the core network to send a cell handover message to the terminal in response to the indication parameter when it detects that the terminal has moved to the edge of the target cell. The second group call service is the group call service that the terminal is currently performing in the source cell. The parsing access module is used to parse the configuration parameters of the second group of call services in the target cell from the cell handover message, and to access the second group of call services according to the configuration parameters after the cell handover is completed.

6. A group call service reconstruction device, characterized in that, Applied to base stations, including: The sending module is configured to send a list of group identifiers and the temporary radio network identifier (G-RNTI) of each first group call service to the terminal via the air interface, so that the terminal can perform the following steps: When it is determined that there is no group identifier for the second group call service in the group identifier list, the system switches from idle state to RRC connected state and sends an indication parameter to the core network. This allows the core network to send a cell handover message to the terminal in response to the indication parameter when it detects that the terminal has moved to the edge of the target cell. The system then parses the configuration parameters of the second group call service in the target cell from the cell handover message and accesses the second group call service according to the configuration parameters after the cell handover is completed. 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, the first group call service is a group call service in an online state, and the second group call service is a group call service that the terminal is currently performing in the source cell.

7. A broadband trunking system, characterized in that, It includes interconnected base stations, a core network, and terminals, wherein the terminals are used to execute the group call service reconstruction method as described in any one of claims 1 to 3, and the base stations are used to execute the group call service reconstruction method as described in claim 4.

8. A terminal, characterized in that, include: At least one processor and memory; The memory stores computer-executed instructions; The at least one processor executes computer execution instructions stored in the memory, causing the at least one processor to perform the group call service reconstruction method as described in 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, which, when executed by a processor, are used to implement the group call service reconstruction method as described in any one of claims 1 to 4.

10. A computer program product, characterized in that, It includes a computer program that, when executed by a processor, implements the group call service reconstruction method according to any one of claims 1-4.

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