WO2020199196A1

WO2020199196A1 - Key communication-based group call creating method, device and system

Info

Publication number: WO2020199196A1
Application number: PCT/CN2019/081516
Authority: WO
Inventors: 刘棣; 高伟; 张志华; 徐晟华; 范珂; 管鲍
Original assignee: 海能达通信股份有限公司
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2020-10-08

Abstract

The present invention provides a key communication-based group call creating method, device and system. A key communication server obtains a group identifier of a key communication group having a permanent group call identifier, then distributes resources required for creating a group call for the key communication group according to the group identifier, and creates the group call corresponding to the key communication group according to the distributed resources. According to the method, the group call is directly created by the key communication server; when a client in the group is online, the client is directly added into the group call; for the client, the group call creation time can be reduced to 0, so that the waiting time of the client is shortened, and the group call creation efficiency is improved.

Description

Method, device and system for creating group call based on key communication

Technical field

The invention belongs to the field of communication technology, and in particular relates to a method, device and system for creating a group call based on key communication.

Background technique

Professional wireless communications (Professional Mobile Radio, PMR), also known as critical communications, is a trunking communications standard established by 3GPP on the basis of LTE in order to solve public safety.

Through the transformation of analog to digital technology for critical communications, the stability, security, and reliability of the network have been greatly improved, and the richness of functions and operational efficiency have also been huge leaps. Services based on critical communications include: mission-critical Push To Talk (MCPTT), mission-critical data (MCdata), and mission-critical video (MCVideo).

The service based on key communication supports single call, group call, and group call. Group call means that a calling user makes a call to each member user in the group. The traditional group call based on key communication usually is that a client initiates a group call request to the server, and then the server notifies the users in the group one by one. The server creates the group call after receiving the group call response information returned by each client. From the group call creation process, it can be seen that the process of creating a group call takes a long time. However, in some emergency application scenarios, a group call needs to be established in a very short time. Obviously, the traditional group call creation method cannot meet the needs of emergency application scenarios.

Summary of the invention

In view of this, the purpose of the present invention is to provide a method, device and system for group call creation based on critical communication to solve the traditional technical problem of long time for group call creation. In order to solve the technical problem, the technical solution provided by this application as follows:

In the first aspect, the present invention provides a method for creating a group call based on key communication, which is applied to a key communication server, and the method includes:

Obtain the group ID corresponding to the key communication group with the group call ID;

Allocating resources required for creating a group call to the key communication group according to the group identifier;

Create a group call corresponding to the key communication group according to the resource.

Optionally, the method further includes:

When only one key communication client in the group call is online or all the key communication clients in the group call leave the group call, determining whether the group call time reaches the preset time;

If the group call time has not reached the preset time, the resources allocated for the group call corresponding to the group identifier are still maintained;

If the group call time reaches the preset time, the resources allocated for the group call corresponding to the group identifier are released.

Optionally, the method further includes:

Obtaining all key communication clients included in the key communication group according to the group identifier;

Pull online key communication clients in the key communication group into the key communication group for group call communication.

Optionally, pulling online key communication clients in the key communication group into the key communication group for group call communication includes:

Detecting online key communication clients from all the key communication clients;

Sending a group call request to the online key communication client, so that the online key communication client enters the key communication group for group call communication.

Optionally, obtaining all key communication clients in the key communication group according to the group identifier includes:

Sending a query request to the group management server, where the query request includes the group identifier for enabling the group management server to query all key communication clients associated with the group identifier;

Receiving information of all the clients associated with the group identifier returned by the group management server.

Optionally, the method further includes:

Send a notification message that the current group call is a permanent group call within a preset time period to the key communication client that has joined the group call corresponding to the group identifier.

In a second aspect, the present invention also provides a key communication-based group call creation device, including a memory and a processor, the memory stores a computer program, and the processor executes the computer program to implement the following steps:

Optionally, the processor executing the computer program stored in the memory further implements the following steps:

Optionally, when the processor is configured to pull online key communication clients in the key communication group into the key communication group for group call communication, it is specifically used to:

Optionally, the processor is configured to obtain all key communication clients in the key communication group according to the group identifier:

Optionally, the processor configured to execute the computer program stored in the memory further implements the following steps:

In the third aspect, the present invention also provides a key communication-based group call creation device, which is applied to a key communication server, and the device includes:

The obtaining module is used to obtain the group ID corresponding to the key communication group with the group call ID;

A resource allocation module, configured to allocate resources required for creating a group call to the key communication group according to the group identifier;

The group call creation module is configured to create a group call corresponding to the key communication group according to the resource.

Optionally, the device further includes:

The user obtaining module in the group is configured to obtain all the key communication clients included in the key communication group according to the group identifier;

The pull-in module is used to pull online key communication clients in the key communication group into the key communication group for group call communication.

Optionally, the device further includes:

A judging module, used for judging whether the group call time reaches the preset time after only one key communication client is online in the group call or all the key communication clients in the group call leave the group call;

The group call retention module is configured to keep the resources allocated for the group call corresponding to the group identifier when the group call time has not reached the preset time;

The group call release module is configured to release the resources allocated for the group call corresponding to the group identifier when the group call time reaches the preset time.

In a fourth aspect, the present invention also provides a key communication-based group call creation system, including a key communication server and multiple clients;

The key communication server obtains the group identifier corresponding to the key communication group with the group call identifier;

The key communication server allocates resources required for creating a group call to the key communication group according to the group identifier;

The key communication server creates a group call corresponding to the key communication group according to the resource, so that the client with the group ID directly joins the group call corresponding to the group ID.

In the method, device and system for group call creation based on key communication provided by the present invention, the key communication server obtains the group identification of the key communication group with the permanent group call identification, and then assigns and creates the group call for the key communication group according to the group identification Required resources, and create group calls corresponding to key communication groups based on the allocated resources. In this method, the key communication server directly creates a group call. When the client in the group goes online, they can directly join the group call. For the client, the group call establishment time can be reduced to 0, thus reducing The waiting time of the client improves the efficiency of group call creation.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are For some of the embodiments of the present invention, those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

FIG. 1 is a flowchart of a method for creating a group call based on MCPTT in an embodiment of the present application;

2 is a flowchart of another method for creating a group call based on MCPTT in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of an apparatus for creating a group call based on critical communication according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of another device for creating a group call based on critical communication according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of yet another device for creating a group call based on critical communication according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of yet another device for creating a group call based on critical communication according to an embodiment of the present application;

Fig. 7 is a schematic structural diagram of a group call creation system based on critical communication provided by the present application.

detailed description

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Please refer to FIG. 1, which shows a flowchart of a method for creating a group call based on key communication in an embodiment of the present application. The method is applied to a key communication system, and the key communication system includes: a key communication client and a key communication server , Group management server, where the number of key communication clients is multiple, for example, at least 3; the group management server and the key communication server may be one physical server, or may be two independent physical servers.

As shown in Figure 1, the method includes the following steps:

S110: The key communication server obtains a group identifier corresponding to a key communication group with a permanent group call attribute.

The key communication server can provide mission-critical intercom service (MCPTT), mission-critical data service (MCData) and mission-critical video service (MCVideo).

The permanent group call attribute indicates that the group call of the key communication group can be maintained for a preset period of time without limitation of access time.

The group identifier is a unique identifier of a key communication group, and is used to uniquely distinguish different key communication groups. The key communication server can obtain the group ID corresponding to the key communication group for which the "permanent group call feature" has been turned on or activated.

In an embodiment of the present application, an administrator or other personnel may configure the "permanent group call feature" attribute of certain specific key communication groups to be enabled or activated.

S120: The key communication server allocates resources required for creating a permanent group call to the key communication group according to the group identifier.

For example, the resources required to create a permanent group call include memory resources allocated for the group call.

S130: The key communication server creates a group call for the key communication group according to the resources allocated for the permanent group call.

The key communication server actively creates a group call for the key communication group, for example, establishes a group call context.

At this point, the process of creating the group call is completed, and then users in the critical communication group can directly join the group call after they go online, so the group call establishment time can be reduced to zero for the user.

After a group call is created for the key communication group, when it is detected that a user in the key communication group is online, the user is pulled into the group call. The specific process is as follows:

S140: The key communication server sends a query request to the group management server.

The query request includes a group identifier corresponding to the key communication group, and the query request is used to query clients in the key communication group.

S150: The group management server queries and obtains information of all clients associated with the group identifier according to the query request and returns it to the key communication server.

After obtaining the group ID, the group management server queries the database for the information of the key communication client associated with the group ID. The information of the key communication client may be the identification information that can uniquely identify the client, for example, the device of the client Identification number or calling number.

Therefore, according to the group identifier, all group members in the critical communication group can be obtained from the group management server.

S160: The key communication server pulls online clients in the key communication group into the group call of the key communication group.

An online client is detected from all the clients included in the key communication group; then, a group call request is sent to the online client, so that the online client enters the key communication group for group call communication.

Optionally, after the client joins the group call, the key communication server may also send notification information to each client. The notification information contains information indicating that the current group call is a permanent group call within a preset time period.

In the method for creating a group call based on key communication provided in this embodiment, the key communication server obtains the group ID of a key communication group with a permanent group call ID, and then, according to the group ID, assigns the key communication group necessary for creating the group call Resources, and create group calls corresponding to key communication groups based on the allocated resources. In this method, the key communication server directly creates a group call. When the client in the group goes online, they can directly join the group call. For the client, the group call establishment time can be reduced to 0, thus reducing The waiting time of the client improves the efficiency of group call creation.

Refer to FIG. 2, which shows a flowchart of yet another method for creating a group call based on critical communication in an embodiment of the present application. Based on the embodiment shown in FIG. 1, the method may further include the following steps:

S210: The key communication server judges whether the group call duration reaches a preset time; if the preset time is reached, S220 is executed; if the preset time is not reached, S230 is executed.

The key communication server determines whether the group call duration reaches the preset time. If the group call duration does not reach the preset time, even if it detects that the users in the group call do not meet the group call conditions (for example, there is only one user left in the group call, Or when all users leave the group call), the resources corresponding to the group call will not be released. When the users in the group call meet the group call conditions, the user can immediately communicate with the group call without re-establishing the group call.

If the duration of the group call reaches the preset time, the resources corresponding to the group call are released.

S220: The key communication server releases the resource corresponding to the group call.

S230: The key communication server maintains resources corresponding to the group call.

In the method for creating a group call based on critical communication provided in this embodiment, the created group call is a permanent group call within a preset time period, even if there is only one user left in the group call, or all users leave the group call, if The group call duration does not reach the preset time period, and the key communication server will not release the resources of the group call. In this way, in an emergency, the user can access the group call at any time for group call communication to meet the user's application requirements for emergency group call.

Refer to FIG. 3, which shows a schematic structural diagram of a key communication-based group call creation device provided by an embodiment of the present application. The device is applied to a key communication server. As shown in FIG. 3, the device includes:

The obtaining module 110 is configured to obtain a group identifier corresponding to a key communication group with a group call identifier.

The resource allocation module 120 is configured to allocate resources required for creating a group call to the key communication group according to the group identifier.

The group call creation module 130 is configured to create a group call corresponding to a key communication group according to resources.

In the key communication-based group call creation device provided in this embodiment, the key communication server obtains the group identification of the key communication group with the permanent group call identification, and then, according to the group identification, assigns the key communication group necessary for creating the group call Resources, and create group calls corresponding to key communication groups based on the allocated resources. The device directly creates a group call by the key communication server. When the client in the group goes online, they can directly join the group call. For the client, the group call establishment time can be reduced to 0, thus reducing The waiting time of the client improves the efficiency of group call creation.

Refer to FIG. 4, which shows a schematic structural diagram of another device for creating a group call based on critical communication according to an embodiment of the present application. The device further includes: on the basis of the embodiment shown in FIG. 3:

The group user obtaining module 210 is configured to obtain all key communication clients included in the key communication group according to the group identifier.

In an embodiment of the present application, the user acquisition module 210 in the group is specifically configured to: send a query request to the group management server, and the query request includes a group identifier for the group management server to query all key communication clients associated with the group identifier ; Then, receive the information of all the clients associated with the group ID returned by the group management server.

The pull module 220 is used to pull online key communication clients in the key communication group into the key communication group for group call communication.

In an embodiment of the present application, the pull module 220 is specifically used to: detect online key communication clients from all key communication clients; send a group call request to the online key communication clients to make the online key communication client The key communication client enters the key communication group for group call communication.

In the key communication-based group call creation device provided in this embodiment, the key communication server directly creates the group call. When the client in the group goes online, it can directly join the group call. For the client, the group call is established. The time can be reduced to 0, therefore, the waiting time of the client is reduced, and the efficiency of group call creation is improved.

Refer to FIG. 5, which shows a schematic structural diagram of another device for creating a group call based on critical communication provided by an embodiment of the present application. As shown in FIG. 5, the device further includes: on the basis of the embodiment shown in FIG. 3:

The judging module 310 is used for judging whether the group call time reaches the preset time when only one key communication client in the group call is online or all the key communication clients in the group call leave the group call.

The judging module 310 judges whether the group call duration reaches the preset time. If the group call duration does not reach the preset time, even if it is detected that the users in the group call do not meet the group call conditions (for example, there is only one user left in the group call, Or when all users leave the group call), the resources corresponding to the group call will not be released. When the users in the group call meet the group call conditions, the user can immediately communicate with the group call without re-establishing the group call.

The group call holding module 320 is configured to keep the resources allocated for the group call corresponding to the group identifier when the group call time has not reached the preset time.

The group call release module 330 is configured to release the resources allocated for the group call corresponding to the group identifier when the group call time reaches the preset time.

Of course, the judgment module 310, the group call holding module 320, and the group call releasing module 330 can also be added on the basis of the embodiment shown in FIG. 4.

According to the key communication-based group call creation device provided in this embodiment, the created group call is a permanent group call within a preset time period, even if there is only one user left in the group call, or all users leave the group call, if The group call duration does not reach the preset time period, and the key communication server will not release the resources of the group call. In this way, in an emergency, the user can access the group call at any time for group call communication to meet the user's application requirements for emergency group call.

On the other hand, the device for creating a group call based on key communication provided by the foregoing embodiment includes a processor and a memory, and the foregoing functional modules included in the device are all stored in the memory as program modules, and the processor executes the foregoing stored in the memory. Program modules to realize the corresponding functions. As shown in FIG. 6, the device includes a memory 410 and a processor 420;

The memory 410 is used to store computer programs.

The processor 420 is configured to execute a computer program stored in the memory 410 to implement the following steps:

Acquire a group ID corresponding to a key communication group with a group call ID; allocate resources required for creating a group call to the key communication group according to the group ID; create a group call corresponding to the key communication group according to the resources.

In an embodiment of the present application, the processor 420 executing the computer program stored in the memory 410 can also implement the following steps:

When only one key communication client in the group call is online or all the key communication clients in the group call leave the group call, judge whether the group call time reaches the preset time; if the group call time does not reach the preset time, keep it The resources allocated for the group call corresponding to the group ID; if the group call time reaches the preset time, the resources allocated for the group call corresponding to the group ID are released.

In another embodiment of the present application, the processor 420 executing the computer program stored in the memory 410 can also implement the following steps:

Obtain all the key communication clients included in the key communication group according to the group identifier; pull the online key communication clients in the key communication group into the key communication group for group call communication.

In an embodiment of the present application, when the processor 420 is configured to pull online key communication clients in the key communication group into the key communication group for group call communication, it is specifically used for:

An online key communication client is detected from all key communication clients; a group call request is sent to the online key communication client, so that the online key communication client enters the key communication group for group call communication.

In an embodiment of the present application, when the processor 420 is configured to obtain all key communication clients in the key communication group according to the group identifier, it is specifically used to:

Analyze the obtained group ID; send a query request to the group management server, the query request containing the group ID is used to enable the group management server to query all key communication clients associated with the group ID; receive the group ID associated with the group ID returned by the group management server The information of all clients.

In another embodiment of the present application, the processor 420 configured to execute the computer program stored in the memory 410 can also implement the following steps:

The key communication-based group call creation device provided in this embodiment obtains the group identification of the key communication group with the permanent group call identification when creating the group call, and then assigns the key communication group to the key communication group according to the group identification that needs to create the group call And create a group call corresponding to the key communication group based on the allocated resources. In this solution, the key communication server directly creates the group call. When the client in the key communication group goes online, it can directly join the group call. For the client, the group call establishment time can be reduced to 0, so the reduction The waiting time of the client is reduced, and the efficiency of group call creation is improved. In addition, the group call created by the key communication server is a permanent group call within a preset time period, even if there is only one user in the group call, or all users leave the group call, if the group call duration does not reach the preset time period , The key communication server will not release the resources of the group call. In this way, in an emergency, the user can access the group call at any time for group call communication to meet the user's application requirements for emergency group call.

The processor in this article contains a kernel, and the kernel fetches the corresponding program from the memory. The kernel can set one or more. Among them, the processor may be a CPU, or an MCU, or, may also be a combination of a CPU and an MCU.

The memory may include non-permanent memory in computer-readable media, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM), and the memory includes at least one Memory chip.

The present application also provides a computer-readable storage medium in which a program is stored, and when the program is executed by a computer, the method for creating a group call based on key communication provided by any of the foregoing embodiments is implemented.

In another aspect, this application also provides a group call creation system based on critical communication. As shown in FIG. 7, a schematic structural diagram of a key communication-based group call creation system provided by an embodiment of this application, the system includes a key communication server 510 and multiple clients 520;

The key communication server 510 is configured to obtain the group ID corresponding to the key communication group with the group call ID, allocate the resources required to create the group call for the key communication group according to the group ID, and create the corresponding key communication group according to the resources Group call, so that the client with the group ID directly joins the group call corresponding to the group ID.

The key communication server 510 is also configured to obtain all key communication clients included in the key communication group according to the group identifier, and pull online key communication clients in the key communication group into the key communication group for group call communication.

Optionally, the key communication server 510 is further configured to send a notification message that the current group call is a permanent group call within a preset time period to the key communication client that has joined the group call corresponding to the group identifier.

Optionally, the system further includes a group management server 530.

When the key communication server 510 obtains all the key communication clients included in the key communication group according to the group identifier, it is specifically used to: send a query request to the group management server 530, and the query request includes the group identifier for the group management server 530 to query and group Identify all associated key communication clients; receive the information of all the clients associated with the group identifier returned by the group management server 530.

It should be noted that the key communication server 510 and the group management server 530 may be the same physical server, or may be independent physical servers, which is not limited in this application.

Optionally, the key communication server 510 is also used to determine whether the group call time reaches the preset time when only one key communication client is online in the group call or all the key communication clients in the group call leave the group call; if If the group call time does not reach the preset time, the resources allocated for the group call corresponding to the group identification are still maintained; if the group call time reaches the preset time, the resources allocated for the group call corresponding to the group identification are released.

In the key communication-based group call creation system provided in this embodiment, when creating a group call, the key communication server obtains the group identification of the key communication group with the permanent group call identification, and then assigns and creates the key communication group according to the group identification Group the resources required for the call, and create a group call corresponding to the key communication group based on the allocated resources. In this solution, the key communication server directly creates the group call. When the client in the key communication group goes online, it can directly join the group call. For the client, the group call establishment time can be reduced to 0, so the reduction The waiting time of the client is reduced, and the efficiency of group call creation is improved. In addition, the group call created by the key communication server is a permanent group call within a preset time period, even if there is only one user in the group call, or all users leave the group call, if the group call duration does not reach the preset time period , The key communication server will not release the resources of the group call. In this way, in an emergency, the user can access the group call at any time for group call communication to meet the user's application requirements for emergency group call.

For the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described sequence of actions, because according to the present invention, Some steps can be performed in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the involved actions and modules are not necessarily required by the present invention.

It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. For the same and similar parts between the various embodiments, refer to each other. can. For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

The steps in the methods of the embodiments of the present application can be adjusted, merged, and deleted in order according to actual needs.

The modules and sub-modules in the devices and terminals in the embodiments of the present application can be combined, divided, and deleted according to actual needs.

In the several embodiments provided in this application, it should be understood that the disclosed terminal, device, and method may be implemented in other ways. For example, the terminal embodiments described above are only illustrative. For example, the division of modules or sub-modules is only a logical function division. In actual implementation, there may be other division methods, for example, multiple sub-modules or modules may be combined. Or it can be integrated into another module, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or modules, and may be in electrical, mechanical or other forms.

The modules or sub-modules described as separate components may or may not be physically separated, and the components as modules or sub-modules may or may not be physical modules or sub-modules, that is, they may be located in one place, or they may be distributed to Multiple network modules or sub-modules. Some or all of the modules or sub-modules may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, each functional module or sub-module in each embodiment of the present application may be integrated into one processing module, or each module or sub-module may exist alone physically, or two or more modules or sub-modules may be integrated in In one module. The above-mentioned integrated modules or sub-modules can be implemented in the form of hardware or software functional modules or sub-modules.

Finally, it should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities Or there is any such actual relationship or sequence between operations. Moreover, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes Other elements of, or also include elements inherent to this process, method, article or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other same elements in the process, method, article, or equipment including the element.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this document, but should conform to the widest scope consistent with the principles and novel features disclosed in this document.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also It should be regarded as the protection scope of the present invention.

Claims

A method for creating a group call based on key communication is characterized in that it is applied to a key communication server, and the method includes:

Obtain the group ID corresponding to the key communication group with the group call ID;

Allocating resources required for creating a group call to the key communication group according to the group identifier;

Create a group call corresponding to the key communication group according to the resource.
The method of claim 1, wherein the method further comprises:

When only one key communication client in the group call is online or all the key communication clients in the group call leave the group call, determining whether the group call time reaches the preset time;

If the group call time has not reached the preset time, the resources allocated for the group call corresponding to the group identifier are still maintained;

If the group call time reaches the preset time, the resources allocated for the group call corresponding to the group identifier are released.
The method of claim 1, wherein the method further comprises:

Obtaining all key communication clients included in the key communication group according to the group identifier;

Pull online key communication clients in the key communication group into the key communication group for group call communication.
The method according to claim 3, wherein the pulling online key communication clients in the key communication group into the key communication group for group call communication comprises:

Detecting online key communication clients from all the key communication clients;

Sending a group call request to the online key communication client, so that the online key communication client enters the key communication group for group call communication.
The method according to claim 3, wherein obtaining all key communication clients in the key communication group according to the group identifier comprises:

Sending a query request to the group management server, where the query request includes the group identifier for enabling the group management server to query all key communication clients associated with the group identifier;

Receiving information of all the clients associated with the group identifier returned by the group management server.
The method of claim 1, wherein the method further comprises:

Send a notification message that the current group call is a permanent group call within a preset time period to the key communication client that has joined the group call corresponding to the group identifier.
A device for creating a group call based on critical communication, characterized by comprising: a memory and a processor, the memory is stored with a computer program, and the processor executes the computer program to implement the following steps:

Obtain the group ID corresponding to the key communication group with the group call ID;

Allocating resources required for creating a group call to the key communication group according to the group identifier;

Create a group call corresponding to the key communication group according to the resource.
8. The device according to claim 7, wherein the processor executes the computer program stored in the memory to further implement the following steps:

When only one key communication client in the group call is online or all the key communication clients in the group call leave the group call, determining whether the group call time reaches the preset time;

If the group call time has not reached the preset time, the resources allocated for the group call corresponding to the group identifier are still maintained;

If the group call time reaches the preset time, the resources allocated for the group call corresponding to the group identifier are released.
8. The device according to claim 7, wherein the processor executes the computer program stored in the memory to further implement the following steps:

Obtaining all key communication clients included in the key communication group according to the group identifier;

Pull online key communication clients in the key communication group into the key communication group for group call communication.
The device according to claim 9, wherein the processor is configured to pull online key communication clients in the key communication group into the key communication group for group call communication, and is specifically configured to:

Detecting online key communication clients from all the key communication clients;

Sending a group call request to the online key communication client, so that the online key communication client enters the key communication group for group call communication.
The device according to claim 9, wherein the processor is configured to obtain all the key communication clients in the key communication group according to the group identifier:

Sending a query request to the group management server, where the query request includes the group identifier for enabling the group management server to query all key communication clients associated with the group identifier;

Receiving information of all the clients associated with the group identifier returned by the group management server.
8. The device according to claim 7, wherein the processor is configured to execute the computer program stored in the memory and further implements the following steps:

Send a notification message that the current group call is a permanent group call within a preset time period to the key communication client that has joined the group call corresponding to the group identifier.
A key communication-based group call creation device is characterized in that it is applied to a key communication server, and the device includes:

The obtaining module is used to obtain the group ID corresponding to the key communication group with the group call ID;

A resource allocation module, configured to allocate resources required for creating a group call to the key communication group according to the group identifier;

The group call creation module is configured to create a group call corresponding to the key communication group according to the resource.
The device according to claim 13, wherein the device further comprises:

The user obtaining module in the group is configured to obtain all the key communication clients included in the key communication group according to the group identifier;

The pull-in module is used to pull online key communication clients in the key communication group into the key communication group for group call communication.
The device according to claim 13, wherein the device further comprises:

A judging module, used for judging whether the group call time reaches the preset time after only one key communication client is online in the group call or all the key communication clients in the group call leave the group call;

The group call retention module is configured to keep the resources allocated for the group call corresponding to the group identifier when the group call time has not reached the preset time;

The group call release module is configured to release the resources allocated for the group call corresponding to the group identifier when the group call time reaches the preset time.
A group call creation system based on key communication, which is characterized in that it includes a key communication server and multiple clients;

The key communication server obtains the group identifier corresponding to the key communication group with the group call identifier;

The key communication server allocates resources required for creating a group call to the key communication group according to the group identifier;

The key communication server creates a group call corresponding to the key communication group according to the resource, so that the client with the group identifier directly joins the group call corresponding to the group identifier.