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Method, terminal and system for reinforcing railway urgent call

A technology for emergency calls and implementation methods, which is used in railway signaling and safety, electrical components, wireless communications, etc.

Inactive Publication Date: 2012-05-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] During the creation process of the present invention, the inventor found that the existing eREC technology has at least the following defects: in the realization of eREC, an information unit needs to be added in the air interface message to carry the line ID, which will lead to multiple network devices (such as MSC, BSC (Base Station Controller), MS (Mobile Station)) need to be modified, resulting in high cost of implementing eREC

Method used

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  • Method, terminal and system for reinforcing railway urgent call
  • Method, terminal and system for reinforcing railway urgent call
  • Method, terminal and system for reinforcing railway urgent call

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] This embodiment describes the process that a train supporting the eREC mode joins an eREC call by dynamically updating the activation status of the local group ID and judging by group ID matching.

[0058] The group call reference structure adopted in this embodiment is as follows Figure 2A As shown, the values ​​1-9 of the line ID bits respectively identify different lines in a certain group call area. Identify any lines.

[0059] The train in this embodiment supports the eREC mode, and the train joins the flow of the railway emergency call, and the specific steps include:

[0060] Step 401, when train A enters line 2 from line 1, it receives a line ID update signal (such as a line ID update signal leaving line 1, and a line ID update signal entering line 2), indicating that train A is leaving line 1 Enter line 2. According to the received line ID update signal, the train A sets the group ID 1299 corresponding to the line 1 to an inactive state, and sets the group ...

Embodiment 2

[0068] This embodiment describes the process that a train supporting the eREC mode does not join the eREC call by dynamically updating the activation status of the local group ID and judging by group ID matching.

[0069] The group call reference structure adopted in this embodiment is as follows Figure 2A As shown, the values ​​1-9 of the line ID bits respectively identify different lines in a certain group call area. Identify any lines.

[0070] The train in this embodiment supports the eREC mode, and the train joins the flow of the railway emergency call, and the specific steps include:

[0071] Step 501. When train A enters from line 1 to line 2, a line ID update signal is received. According to the received line ID update signal, the train A sets the group ID 1299 corresponding to the line 1 to an inactive state, and sets the group ID 2299 corresponding to the current line 2 to an active state.

[0072] Step 502: The GSM-R network initiates a group call notification a...

Embodiment 3

[0078] This embodiment describes the process that a train supporting the eREC mode joins an eREC call in a manner equivalent to the REC mode by dynamically updating the activation state of the local group ID.

[0079] The group call reference structure adopted in this embodiment is as follows Figure 2A As shown, the values ​​1-9 of the line ID bits respectively identify different lines in a certain group call area. Identify any lines.

[0080] The train in this embodiment supports the eREC mode, and the train joins the flow of the railway emergency call, and the specific steps include:

[0081] Step 601, when train A departs from line 1 and does not receive the update signal of the new line ID, the train A sets the group ID 1299 corresponding to line 1 to non- In the activated state, since the train has not received or has not received update signals of other line IDs within the specified time, the train A sets the local group ID 299 or group ID 0299 ​​to the activated stat...

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Abstract

The invention discloses a method and a terminal for realizing enhancement of rail emergency call as well as a system thereof, the inventive method comprises the steps that: the terminal updates information according to obtained line mark and sets activation states of local enhancement of rail emergency call eREC group mark or rail emergency call REC group mark at the terminal, the eREC group markis composed of a line mark position and a REC group label position; when receiving group calling notification information, the terminal judges whether the group mark carried by group calling reference in the group calling notification information is matched with the group mark of local activation state of the terminal; if so, group calling services are added; if not, the group calling notification information is ignored. The invention can realize the enhancement of rail emergency call without altering air interface messages, thus saving realization cost for enhancement of rail emergency call.

Description

technical field [0001] The invention relates to the railway emergency call technology in the communication field, in particular to a method for realizing an enhanced railway emergency call, a terminal supporting the enhanced railway emergency call, and a system for realizing the enhanced railway emergency call. Background technique [0002] VGCS (Voice Group Call Service, Voice Group Call Service) is a service in which multiple people can speak and more people can be listeners (the number of listeners is unlimited). Members participating in a VGCS call include two categories: dispatchers and business users. [0003] Dispatcher: There can be up to 5 dispatchers in each VGCS call. The dispatcher of the VGCS call can be a fixed user or a mobile user, and participate in the voice communication of the group call through the dedicated channel established for it by the network. [0004] Service user: A mobile user who subscribes to the VGCS service, and the called service user par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W84/08H04W60/04B61L23/00
Inventor 沈敏军
Owner HUAWEI TECH CO LTD