Channel assignment method and apparatus

Abstract

The invention discloses a channel assignment method and a channel assignment apparatus. The channel assignment method comprises the following steps that: a network side measures the reception level and moving speed of a train mobile station and calculates frequency shift information of the train mobile station; the network side judges whether the train mobile station enters a current service cell or leaves the service cell according to the frequency shift information; and the network side assigns a channel corresponding to the service cell to the train mobile station according to the reception level, the moving speed and judgment results of the running of the rain mobile station. With the channel assignment method and the channel assignment apparatus of the invention adopted, the problems of proneness to calling failure at the edge of the cell in a high-speed train running scene can be solved, and therefore, the probability of occurrence of railway accidents can be decreased, and network performance indexes can be improved, the perception of users can be increased; and strict requirements of railways for network reliability can be satisfied.

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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