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GSM-R handover method and GSM-R handover device

A GSM-R and handover technology, applied in the field of train communication, can solve the problems of poor signal strength, short allowable time, high interruption rate of switching methods, etc., and achieve the effect of reducing the switching interruption rate and high switching reliability

Active Publication Date: 2020-06-12
BEIJING JINHONG XI DIAN INFORMATION TECH
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  • Application Information

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Problems solved by technology

[0004] At the border of the two cells, due to the influence of shadows, the signal strength is already poor. With the gradual increase of the train speed, the allowable time for handover is getting shorter and shorter, and the Doppler effect is becoming more and more serious, resulting in Existing handover methods suffer from high outage rates
[0005] In addition, with the development of communication technology, 5G technology will be gradually introduced into the GSM-R system after it is relatively mature. However, the signal range of 5G cells will be smaller and the number of cells will be larger. The interruption rate under some switching technologies will seriously affect the normal communication of the train

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[0040] The present invention will be further described in detail below by means of the accompanying drawings and preferred embodiments. Through these descriptions, the features and advantages of the present invention will become more apparent.

[0041] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0042] In the current GSM-R handover method, the signal strength RSS is simply considered, and whether to handover is judged according to whether the RSS reaches the threshold value. Interference ratio CIR, bit error rate BER, did not consider whether the signal is stable before and after switching. The present invention proposes a neural network-bas...

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Abstract

The invention discloses a GSM-R handover method and device, and the method comprises the steps: determining a handover position according to the signal intensity, the train speed, the train position and the base station position, and referring to the carrier-to-interference ratio of a signal and the bit error rate of the signal when the handover position is determined. According to the invention,the switching position is optimized, the switching interruption rate is reduced, and the switching reliability is improved.

Description

technical field [0001] The invention relates to a network switching method and device, in particular to a GSM-R handover method and device, and belongs to the technical field of train communication. Background technique [0002] my country has a vast territory and a large number of people. Railway transportation, as an important national infrastructure and a popular means of transportation, is at the backbone of China's comprehensive transportation system. [0003] In the GSM-R system, there will be multiple cells along the train to provide signals to cover the entire train track, and the coverage of the cells will overlap. At present, the train determines whether to switch by detecting the received cell signal strength. [0004] At the border of the two cells, due to the influence of shadows, the signal strength is already poor. With the gradual increase of the train speed, the allowable time for handover is getting shorter and shorter, and the Doppler effect is becoming mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/42H04W36/00H04W36/30H04W36/32G06N3/08
CPCH04W4/42H04W36/0085H04W36/30H04W36/32G06N3/084Y02D30/70
Inventor 贾利民高一凡夏志成
Owner BEIJING JINHONG XI DIAN INFORMATION TECH
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