Channel assignment method and device

Abstract

The invention discloses a channel assignment method and device. Among them, the method includes: the network side measures the reception level and moving speed of the train mobile station, and calculates the frequency offset information of the train mobile station; the network side uses the frequency offset information to determine whether the train mobile station enters the current serving cell or leaves the current service area. Serving cell: The network side assigns the channel of the corresponding serving cell to the above-mentioned train mobile station based on the above-mentioned reception level, the above-mentioned moving speed and the judgment result of the operation of the train mobile station. Through the present invention, the problem of easy failure of call origination at the edge of a cell in the high-speed train operation scenario in the related art is solved, thereby reducing the probability of railway accidents, improving network performance indicators, improving user perception, and further ensuring the reliability of the railway network. Strict sexual requirements.

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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