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Method, terminal and core network element for establishing cross-system call

A technology for call establishment and call establishment request, applied in the field of communication, can solve the problems of inability to meet the flexibility of cross-system call service, inability to apply cross-system single call service, lack of flexibility, etc.

Active Publication Date: 2018-05-25
HARBIN HYTERA TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The pre-established mapping relationship restricts the cross-system group call service to only the two preset groups. If you want to support cross-system group calls between these two groups and other groups, you must modify the mapping relationship and re-establish the corresponding In addition, due to the pre-established corresponding relationship, it cannot be applied to cross-system single call services. Therefore, this method of establishing group calls lacks flexibility and cannot meet the requirements of cross-system call service flexibility.

Method used

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  • Method, terminal and core network element for establishing cross-system call
  • Method, terminal and core network element for establishing cross-system call
  • Method, terminal and core network element for establishing cross-system call

Examples

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Embodiment 1

[0067] see figure 1 , shows the flow chart of Embodiment 1 of the method for establishing a cross-system call at the terminal side of the present invention. This method is described from the perspective of the terminal side. The method may include:

[0068] S101. Send a call establishment request carrying a call type and a called system identifier to the base station, so that the system core network receives the call establishment request sent by the base station, and extracts the corresponding called from the call establishment request according to the call type. The called number, according to the preset mapping relationship between the system identifier and the system number, searches for the called system number corresponding to the called system identifier, and sends the called system number and the called number to the gateway of this system so that the gateway of this system sends the called number to the gateway of the called system according to the number of the calle...

Embodiment 2

[0079] Next, the present invention will be further explained from the perspective of cross-system group call service.

[0080] The following describes from the perspective of the terminal side, the method for establishing a cross-system call at the terminal side in Embodiment 2, the method includes: S201 and S202,

[0081] S201. Send a call establishment request to the base station, where the call establishment request includes a group call identifier, a called system identifier, a group number within the system, and a group number within the called system;

[0082] Correspondingly, the core network of this system receives the call establishment request sent by the base station, and extracts the called system identifier, the group number within the system, and the group number within the called system from the call establishment request according to the group call type ; The core network of this system allocates a temporary group number for this cross-system call and sends the...

Embodiment 3

[0096] The method for establishing a cross-system call at the terminal side in Embodiment 3 is described below from the perspective of the terminal side. The method includes: S301 and S302,

[0097] see image 3 , shows the flow chart of Embodiment 3 of the cross-system call establishment method of the present invention, the method is described from the perspective of the terminal, and the method may include S301 and S302,

[0098] S301. Send a call establishment request to the base station, where the call establishment request includes a single call identifier, a called system identifier, and a called terminal number; so that the core network of this system receives the call establishment request sent by the base station, and according to the single call type extracts the called system ID and the called terminal number from the call establishment request; according to the preset mapping relationship between the system ID and the system number, search for the called system ID ...

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PUM

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Abstract

The invention discloses a cross-system call setup method, a terminal and a core network element. The method comprises the following steps: sending a call setup request carrying a call type and identification of a called system to a base station, and thus enabling a core network of a system to receive the call setup request sent by the base station; extracting a corresponding called number from the call setup request; finding the number of the called system according to the mapping relation between a preset system identification and system numbers, sending the number of the called system and the called number to a system gateway, and thus enabling the system gateway to send the called number to a called system gateway according to the number of the called system; enabling the called system gateway to send the called number to the called system, and thus enabling the called system to set up a cross-system call according to the called number; receiving broadcast signaling carrying service channel information sent by the base station, and switching to a corresponding service channel according to the service channel information. The scheme can flexibly realize the cross-system call service.

Description

technical field [0001] The present invention relates to the technical field of communication, and more specifically, relates to a cross-system call establishment method, a terminal and a core network element. Background technique [0002] There are many different systems for private network mobile communication, such as PDT, Tetra, etc. The numbering rules and range ranges of different systems are different, and different manufacturers will adapt the numbering rules and range ranges for the same system. Therefore, In practical applications, how to achieve cross-system interconnection has become a technical difficulty in the development of private network communication. [0003] In the prior art, there is only a cross-system interconnection method for group call services. This method uses the user number in the system group to establish a one-to-one mapping relationship for the two cross-system groups; members in a system group send the group number to the base station The b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/11
CPCH04W76/10H04W76/16
Inventor 曹磊秦瑞伦周洪波王宇
Owner HARBIN HYTERA TECH CORP