Channel assignment method and device

Abstract

Disclosed are a method and device for assigning a channel. The method includes: a network side measuring the reception level and travelling speed of a train mobile station, and calculating frequency deviation information about the train mobile station; with the frequency deviation information, the network side judging whether the train mobile station is entering a current serving cell or leaving the current serving cell; and according to the reception level, the travelling speed and the judgment result of train mobile station running, the network side assigning a channel to the train mobile station. The embodiments of the present invention solve the problem in the related art that call origination from a cell edge is easy to fail in the scene of high-speed train running, thereby reducing the probability of occurrence of railway accidents, improving network performance indices, increasing the degree of perception of users, and ensuring the strict requirements on network reliability from railways.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a channel assignment method and device. Background technique [0002] With the rapid development of the economy, traditional means of transportation can no longer meet people's travel requirements for fast, safe, and low-cost travel, and high-speed railways have emerged. High-speed railway, referred to as "high-speed railway", refers to a railway system that achieves an operating speed of more than 300 kilometers per hour through the transformation of the original line (linearization, standardized gauge), or the construction of a new "high-speed new line". High-speed rail is faster than ordinary trains, and its safety is almost the same as that of ordinary trains. The cost is cheaper than that of airplanes, which fully meets people's requirements for safety and high cost performance. The Global system for Mobile Communication For Railways (GSM-R for short) system is a comprehe...

AI Technical Summary

Problems solved by technology

If the train mobile station calls at the edge when it leaves the cell, the distance traveled by the train in the case of the delay of the above call types, it is very likely that the uplink and downlink levels drop too fast, resulting in the loss of signaling messages during the communication between the train mobile station and the network , eventually causing the call to fail

The occurrence of such problems in the scene of high-speed trains will undoubtedly increase the probability of train safety hazards

[0005] The current GSM-R system has no specific solutions for the above-mentioned problems that easily lead to potential safety hazards, and the protocol does not make any descriptions and explanations. The call can only be completed by manually restarting the call, which affects user experience.

[0006] Aiming at the problem that calls at the edge of the cell are easy to fail in the high-speed train operation scenario in the related technology, no effective solution has been proposed so far

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