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Handover method for global system for mobile communications for railway (GSM-R) based on train function numbers

A GSM-R, handover technology, applied in electrical components, wireless communication, etc., can solve problems such as communication interruption, and achieve the effect of simplifying the determination process, simplifying the number, and improving effectiveness

Inactive Publication Date: 2011-07-13
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even because the moving speed of the mobile users on the high-speed train is very fast, if the switching time is too long, the mobile users have already left the overlapping area before switching, which directly causes communication interruption

Method used

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  • Handover method for global system for mobile communications for railway (GSM-R) based on train function numbers
  • Handover method for global system for mobile communications for railway (GSM-R) based on train function numbers
  • Handover method for global system for mobile communications for railway (GSM-R) based on train function numbers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 (handover under the control of the same MSC)

[0034] refer to figure 2 with image 3 .

[0035] In step 1K225, before the departure of the train, the train mobile station completes the registration of the train number function number.

[0036] Step 2: MSC on the network side prepares a list of cells along the train running, such as figure 2 . Assume that 26 cells pass through along the way, and the MSC numbers the 26 cells, assuming that cells No. 1 to 13 belong to one MSC, and cells No. 14 to 26 belong to another MSC. Then, when the train switches between No. 13 and No. 14 cells, it will perform cross-MSC handover, and the handover between other cells will all perform handover under the control of the same MSC. When the train mobile station establishes communication in No. 1 cell, the network side sends the train mobile station the pilot number of the next handover target cell of the train - No. 2 cell according to the list of cells along the tra...

Embodiment 2

[0041] Embodiment 2 (handover under the control of different MSCs)

[0042] refer to figure 2 with Figure 4 .

[0043] In step 1K225, before the departure of the train, the train mobile station completes the registration of the train number function number.

[0044] Step 2: MSC on the network side prepares a list of cells along the train running, such as figure 2 . Assume that 26 cells pass through along the way, and the MSC numbers these 26 cells, assuming that cells No. 1 to 13 belong to one MSC, and cells No. 14 to 26 belong to another MSC. Then, when the train switches between No. 13 and No. 14 cells, it will perform cross-MSC handover, and the handover between other cells will all perform handover under the control of the same MSC. When the train mobile station establishes communication in No. 13 cell, the network side sends the train mobile station the pilot number of the next handover target cell of the train - No. 14 cell according to the list of cells along ...

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PUM

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Abstract

The invention discloses a handover method for a global system for mobile communications for railway (GSM-R) based on train function numbers. The method comprises the following steps of: registering train function numbers, preparing a list of cells along the line, sending pilot signals of switched cells, measuring wirelessly, judging, handing over and canceling the train function numbers. The handover method disclosed by the invention utilizes the characteristic that cells covered on the train line are linear cells, so that handover has fixity, and the train function numbers are combined to perform handover, thereby effectively avoiding the problem of ping-pong handover in communication of mobile users on a high-speed train, and improving the effectiveness of handover.

Description

technical field [0001] The invention relates to the field of railway digital dedicated mobile communication, in particular to a GSM-R handover method based on train number function number. Background technique [0002] Handover refers to the process in which a mobile station in dedicated mode moves from a cell covered by a base station to a cell covered by another base station. First, through wireless measurement, the mobile station reports the quality of the received signal, the carrier-to-interference ratio, the relative distance between the mobile station and the base station, or the bit error rate and other data to the base station controller or switch on the network side. If the conditions for handover are met, it will trigger Handover, the process of triggering handover is generally controlled by the base station on the network side. By comparing the measured value with the threshold value, it is judged whether the mobile station is performing handover; then it scans a...

Claims

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Application Information

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IPC IPC(8): H04W36/08
Inventor 吴昊孟嘉温士雅汤恒亮史昊一
Owner BEIJING JIAOTONG UNIV
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