High-speed rail LTE switching method based on double-antenna linkage

A dual-antenna, antenna technology, applied in the field of communication, can solve the problem of not having the adaptive ability of handover threshold, affecting network quality, etc., to achieve better handover effect, improve handover probability, and optimize the effect of handover process.
CN110996355AActive Publication Date: 2020-04-10XIDIAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIDIAN UNIV
Publication Date
2020-04-10

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Abstract

The invention discloses an LTE (Long Term Evolution) switching method based on high-speed train double-antenna linkage, and mainly solves the problem that in the prior art, the switching success rateis low and the network quality is influenced due to the fact that a TD-LTE system moves too fast in a high-speed railway environment. According to the scheme, the method comprises the following steps:1, ; an LTE antenna and an access control unit which work independently are arranged at the head and the tail of a high-speed rail train respectively; the vehicle head antenna is switched firstly; then, the consistency and the determinacy of the head-tail switching environment of the train are utilized; according to the method, the vehicle head antenna switching data is synchronized to the vehicle tail antenna, and the related parameters are adjusted and optimized based on the evaluation result when the vehicle tail antenna is switched according to the evaluation of the switching effect of the vehicle head antenna, i.e., the switching process and data of the vehicle tail antenna are dynamically adjusted and then the switching is carried out, so that a better switching effect is obtained.According to the invention, the switching performance of a mobile user in a high-speed motion scene is effectively improved, and the overall network service quality of a train is optimized.
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Description

technical field

[0001] The invention belongs to the technical field of communication, relates to wireless communication technology, and further relates to the switching of dual-antenna linkage of high-speed rail trains, specifically a high-speed rail LTE switching method based on dual-antenna linkage, which can be used in high-speed rail mobile communication systems. Background technique

[0002] With the rapid development of high-speed railways, high-speed railways have become one of the main modes of transportation for people's daily travel. Passengers' demand for mobile networks has also developed from a single service such as traditional text messaging and voice to short video, real-time chat, multimedia, etc. A variety of comprehensive entertainment services have put forward higher and higher requirements for network bandwidth and delay.

[0003] The traditional dedicated railway network uses the GSM-R (Global System for Mobile Communications-Railway) wireless communica...

Claims

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