This paper mainly introduces some related problems about special mobile communication signal based on TD-LTE and TD-SCDMA in high-speed railway, summaries the main difficulty of TD-LTE coverage in high-speed railway and analyses TD & LTE wireless network coverage characteristics and key technologies under the environment of high-speed railway. First, we make a contrast of the coverage range of TD

TD-LTE, Uplink and Downlink Coverage Range, Radio Remote Unit (RRU)

Hou, Q. , Qiu, C. , He, S. and Gao, T. (2017) Study of 3G/4G Network Convergence Planning Scheme in High-Speed Railway. International Journal of Communications, Network and System Sciences, 10, 301-310. doi: 10.4236/ijcns.2017.105B030.