CN111800746A

CN111800746A - Group call reduction method and equipment in broadband cluster system

Info

Publication number: CN111800746A
Application number: CN201910280392.4A
Authority: CN
Inventors: 龙放; 王宗茹
Original assignee: Potevio Information Technology Co Ltd
Current assignee: Potevio Information Technology Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-10-20

Abstract

The application discloses a group call reduction method in a broadband cluster system, which comprises the following steps: the core network equipment initiates a group calling reduction operation to the base station according to a set period; in the period time, the core network equipment does not perform group calling reduction operation on the base station according to the change of the terminal participating in the group calling under the base station. Corresponding to the method, the application also discloses core network equipment. By applying the technical scheme disclosed by the application, the problems of repeated reduction and extension in the group calling can be effectively solved.

Description

Group call reduction method and equipment in broadband cluster system

Technical Field

The present application relates to the field of trunking communication technologies, and in particular, to a group call reduction method and device in a broadband trunking system.

Background

In a broadband cluster, a group call and an associated base station are in a 1-to-many relationship, a base station and UE of the same group call under the base station are also in a 1-to-many relationship, and the relationships among the group call, the base station and the UE in the cluster communication are shown in FIG. 1.

In the broadband cluster core network, the affiliation between the base station and the UE in the group call needs to be maintained. In the scenario that the called UE moves in the network or the called UE in the group is turned on or turned off, the core network needs to perform group call extension and group call reduction operations on different base stations, so that the UE can continue to listen to the group call content after moving or turning on.

The prior art is usually realized by group call extension and group call reduction, and the method is as follows:

1. when a group call is in progress, if a called UE in the group moves from base station a to base station B, the core network needs to notify base station B to perform group call extension on the group call.

2. If the called UE is the only member of the group call under base station a, the core network needs to perform group call reduction on base station a for the group call.

The existing B-TrunC protocol provides two interfaces of group call extension and group call reduction, and only provides descriptions of message functions and structures in the protocol for group call reduction (group call context release) initiated by an MME (mobility management entity) end.

In practical application, the core network is triggered to expand and reduce the base station under the group call by using the conditions of UE power-off, power-on, UE moving in the network, dynamic group joining by recombination, dynamic group removing by recombination and the like.

The above implementation method has certain disadvantages. Such as: in the group calling process, when the called UE moves back and forth between the base station a and the base station B, then, the core network will continuously perform group calling extension and group calling reduction operations on the base station a and the base station B, and there are the following problems in repeating the group calling extension and group calling reduction:

1. there is a group call setup delay;

2. the group calling extension and the group calling reduction are repeatedly carried out in a short time, unnecessary signaling flow between the base station and the core network is increased, and the processing efficiency is reduced;

3. the actual effect of the UE answering the group call is affected.

Disclosure of Invention

The application provides a group call reduction method and equipment in a broadband cluster system, which are used for effectively solving the problems of repeated reduction and extension in the group call.

The application discloses a group call reduction method in a broadband cluster system, which comprises the following steps:

the core network equipment initiates a group calling reduction operation to the base station according to a set period;

in the period time, the core network equipment does not perform group calling reduction operation on the base station according to the change of the terminal participating in the group calling under the base station.

Preferably, the initiating, by the core network device, a group call reduction operation to the base station according to a set period includes:

when the periodic time is up, the core network equipment traverses the maintained group calling information;

for any group call, if the number of terminals belonging to the group call under the base station is 0, the core network equipment initiates a group call reduction operation to the base station.

Preferably, the change of the terminal includes: the terminal moves, shuts down and is dynamically recombined to move out of the group.

The application also discloses a core network device, which is used for reducing group calling in the broadband trunking system, and the core network device comprises a processor, and the processor is used for:

initiating group calling reduction operation to a base station according to a set period;

and in the period time, the processor does not perform group calling reduction operation on the base station according to the change of the terminal participating in the group calling under the base station.

Preferably, the processor is further configured to:

traversing the maintained group calling information when the periodic time is reached;

for any group calling, if the number of terminals belonging to the group calling under a base station is 0, initiating a group calling reduction operation to the base station.

As can be seen from the above technical solutions, the group call reduction technical solution in the broadband trunking system provided by the present application has the following advantages:

1. the problems of repeated reduction and extension in the group calling can be effectively solved.

2. The signaling flow between the base station and the core network can be reduced, and the processing efficiency is improved.

3. When the group calling called UE moves, the problem of voice/video interruption or delay can be avoided, so that the user experience is greatly improved.

Drawings

Fig. 1 is a schematic diagram of a relationship among a group call, a base station and a UE in trunking communication;

fig. 2 is a flowchart illustrating a group call reduction method according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below by referring to the accompanying drawings and examples.

In order to solve the problems in the prior art, the application provides a group call reduction method in a broadband cluster system, and the key points of the scheme are as follows:

1. the core network MME periodically initiates a group call reduction operation. The cycle size may be dynamically configured to dynamically adjust the sensitivity of the MME to perform group call reduction.

2. In the period time, the core network MME does not perform group calling reduction operation on the base station according to the change of the UE participating in the group calling in the base station.

For example: in the group call maintaining process, when the UE is handed over from the base station a to the base station B and there is no terminal belonging to the group call in the base station a, if the change occurs within the period time (that is, the current period has not ended yet and the time for performing group call reduction has not yet been reached), the MME does not respond to the change, that is, does not initiate the group call reduction operation.

3. When the periodic time arrives, the core network MME traverses the maintained group call information, and determines whether group call reduction is required, specifically:

when the MME finds that the number of the UE belonging to a group call under a certain base station of the group call is 0, the MME indicates that no UE needs to answer the group call under the base station, and then the MME initiates a group call reduction operation to the base station. If the number of the UE belonging to the group call under the base station is not 0, the MME does not initiate the group call reduction operation to the base station.

Based on the above points, the present invention provides a group call reduction method in a broadband trunking system, which comprises:

Specifically, the initiating, by the core network device, a group call reduction operation to the base station according to a set period includes:

Wherein the change of the terminal comprises: the terminal moves, shuts down and is dynamically recombined to move out of the group. According to the prior art, when the terminal changes, the core network equipment is triggered to reduce the group calling of the base station to which the terminal belongs; by adopting the technical scheme of the invention, the change of the terminal does not trigger the core network equipment to reduce the group calling of the base station to which the terminal belongs, but the core network equipment determines whether to reduce the group calling of the relevant base station according to the traversal result of the group calling information when the current period is finished.

Corresponding to the above method, the present application also discloses a core network device for group call reduction in a broadband trunking system, where the core network device includes a processor, and the processor is configured to:

Preferably, the processor is further configured to:

Fig. 2 is a flowchart illustrating a group call reduction method according to an embodiment of the present invention, which includes the following steps:

step 1: and (5) judging whether the cycle time is up, and executing the step (2) when the cycle time is up.

Step 2: and the core network equipment traverses the group calling information.

And step 3: for any group calling information, the core network equipment traverses the information of the base station to which the terminal belongs under the group calling.

And 4, step 4: and (5) if the number of the terminals belonging to the current group call under the base station is 0, executing step 5, otherwise, executing step 6.

And 5: the core network device (usually MME) initiates a group call reduction operation to the base station, and ends the processing of the base station.

Step 6: the core network device does not initiate the group call reduction operation to the base station, and finishes the processing to the base station.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A group call reduction method in a broadband cluster system is characterized by comprising the following steps:

2. The method of claim 1, wherein the core network device initiating the group call reduction operation to the base station according to a set period comprises:

3. The method according to claim 1 or 2, characterized in that:

the changes to the terminal include: the terminal moves, shuts down and is dynamically recombined to move out of the group.

4. A core network device for group call reduction in a broadband trunking system, the core network device comprising a processor configured to:

5. The core network device of claim 4, wherein the processor is further configured to:

6. Core network device according to claim 4 or 5, characterized in that: