Establishing and updating method for dynamic voice group call region

A voice group call and update method technology, applied in nan, electrical components, network topology, etc., can solve the problems of difficult dynamic performance in group call areas, and achieve the effects of easy control and search, simple data transmission, and good dynamics

Inactive Publication Date: 2011-02-16
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the cores of the dynamic voice group call service is to realize the dynamic performance of the group call area, but it is relatively difficult to realize the dynamic performance of the group call area on the basis of the existing network architecture

Method used

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  • Establishing and updating method for dynamic voice group call region
  • Establishing and updating method for dynamic voice group call region

Examples

Experimental program
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Embodiment Construction

[0021] When a mobile user in the wireless network service needs to apply for a dynamic group call, the SCP (Service Control Point, Service Control Point) inside the network will judge the legitimacy of the user, and will query the available group ID after passing, and assign it to the user. Dynamic group call, at the same time, the group call attribute is transmitted to the GCR through the interface between the SCP and the GCR, and the dynamic group call is created.

[0022] When the mobile station enters a certain serving cell, it always listens to the system message on the BCCH broadcast channel, and decodes the Cell ID of the current serving cell. If the mobile station finds that the Cell ID of the new cell is different from the previous Cell ID, it sends the new Cell ID to the intelligent network. This process will be maintained until the dynamic group call is canceled or forced to log out, that is, during the existence of the dynamic group call, all group members will aut...

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Abstract

The present invention provides a method for establishing and updating dynamic voice group calling area. The invention is suitable for global system for mobile communications for railway (GSM-R). The dynamic condition of group calling member and the dynamic condition of group calling area are two basic ideas which penetrate the whole dynamic voice group calling service. The invention is based on the basic idea of system of dynamic voice group calling, and provides a system flow which comprises establishing and real-time updating the dynamic group calling area. A novel settling method is provided for network development and optimization of dynamic voice group calling of railway mobile communication system.

Description

technical field [0001] The invention relates to a method for creating and updating a dynamic voice group call area for railway wireless mobile communication, belonging to the field of mobile communication. Background technique [0002] The voice group call service defines a point-to-multipoint voice communication mode in which multiple parties participate, some of whom can speak and multiple parties listen. The voice group call is identified by a specific group call reference. The group call reference is uniquely determined by the group call area number and the group ID. The group call area number can be used to define the geographical range covered by the group call, with the cell as the basic unit; the group ID A feature used to identify the group, ie, which identities of members participate. [0003] The dynamic voice group call service is designed and realized through the intelligent network combined with the USSD service (Unstructured Supplementary Services Data, unstr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/00H04W84/08
Inventor 钟章队朱刚黎文边陈欣杨焱蒋文怡许荣涛李旭武贵君
Owner BEIJING JIAOTONG UNIV
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