METHOD AND SYSTEM FOR COMPENSATING QUALITY DEGRADATION OF MOBILE COMMUNICATION TERMINAL IN HIGH-SPEED TRAIN EXPRESS TUNNEL

摘要

The present invention relates to a method and system for improving the sound quality degradation that occurs in the mobile phone of the internal high speed train traveling at high speed train of high speed railway tunnels. ; The present invention provides a system for improving the sound quality degradation of the mobile communication terminal for communicating in railway tunnels, wireless connection with the mobile communication terminal, synchronization maintenance, traffic channel allocation, and performs the function of the release, from channel cards mounting redesign the channel estimation coefficients (channel Estimator coefficient) of the package an application for running by correcting the frequency deviation of the mobile communication terminal, and transmits / receives a repeater and signals to relay wireless communication with the mobile communication terminal base stations; To improve the sound quality degradation of the mobile communication terminal for communicating in by relay base station signal that is output from the base station high speed railway tunnels, comprising a tunnel-like light distribution system that provides wireless communication service to the mobile terminal It provides a system. ; According to the present invention, BTS operator is able to compensate for quality degradation of the mobile communication terminal by redesigning the channel estimation coefficient to correct the frequency deviation of the channel card provided in the BTS programmatically. ; BTS, CE, MDSP, channel cards, CEC, Channel Estimator Coefficient