Method for setting LTE network in high-speed rail environment

Abstract

The invention provides a method for setting the LTE network in a high-speed rail environment. The LTE network comprises N base stations and antennae, wherein N is larger than 1, the base stations are distributed on the two sides of a railway in a stagger and zigzag mode, the incidence angle theta of each base station is not smaller than 10 degrees, the vertical distance D between each base station and the edge of the railway meets the inequation that S / 2*tan theta<D<S / 2, S represents station spacing, and theta is the minimum incidence angle. By the adoption of the method, through targeted network plan of the high-speed rail scene, the high-quality LTE network can be provided for an operator, adverse effects caused by various factors during high-speed running of a train are reduced, signal quality is guaranteed, and user experience is improved.

Description

technical field [0001] The invention relates to the communication field, in particular to a setting method of an LTE network in a high-speed rail environment. Background technique [0002] The national high-speed railway planning and construction plan is that by 2020, express passenger transport channels will be established between provincial capitals and large and medium-sized cities, including "four vertical and four horizontal" railway express passenger transport channels and three intercity express passenger transport systems. It is estimated that by 2020, the mileage of China's high-speed railways with a speed of 200 kilometers per hour and above will exceed 18,000 kilometers, accounting for more than half of the total mileage of high-speed railways in the world. [0003] High-speed high-speed rail covers a long mileage. Passengers who take high-speed high-speed rail have a lot of leisure time and have great demands on the network, including not only voice requirements,...

AI Technical Summary

Problems solved by technology

However, the existing 3G network railway coverage is of poor quality and cannot meet the growing needs of passengers for voice and data services. Therefore, it is very necessary to build a high-speed high-speed rail LTE network with good signal, wide coverage, and fast Internet access. It can not only increase business income, Improving user perception is also of great benefit to operators' image building

[0004] After the train speeds up, the vehicle runs fast on the dedicated track. Due to the influence of various factors such as fast fading during high-speed movement, the Doppler effect, the attenuation of the wireless signal by the train material, and the unoccupied coverage area, mobile phone users in the car When performing mobile communications, it is often prone to phenomena such as switching confusion, failure to connect, and abnormal call drop

In summary, the special and complex network characteristics of high-speed high-speed rail have brought considerable problems to mobile communications.

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