WCDMA网无线高铁隧道覆盖策略.doc

WCDMA网无线高铁隧道覆盖策略 　　DOI：10.16661/j.cnki.1672-3791.2016.27.016 摘 要：2015年我国高速铁路建设将进入全面收获时期。高铁的建立是一项利国利民的举措，更是我国交通领域发展的新篇章，在高铁建设过程中，涉及到高铁无线网络的覆盖施工，但是其中的难点就是高铁的隧道网络覆盖问题。网络的全面覆盖能够提升乘客乘坐列车的幸福感，这也是我国通信和铁路相结合的重要方面。只有全面覆盖才能显示出高铁修建对人们出行便捷性的考虑，高铁隧道作为一个特殊网络覆盖场景，是各移动网络运营商覆盖难点。该文从车体传统损耗、最小重叠覆盖距离、多普勒频移、覆盖范围及覆盖策略几方面，浅析了WCDMA网如何覆盖高铁隧道。希望能够给高铁建设者更多的建议，使WCDMA网实现更广度的覆盖，继而提升人们对交通的创新性认识，为交通领域新的发展添上一抹重彩 关键词：WCDMA 高速铁路 隧道 中图分类号：TN92 文献标识码：A 文章编号：1672-3791（2016）09（c）-0016-03 Coverage Strategy of WCDMA Network Wireless High Speed Railway Tunnel Tao Dongsheng1 Sun Guotong2 （1.Beijing Telecom Planning and Designing Institute Co. Ltd.，Guangdong Branch；2.Guangzhou Jiesai Tech Incorporated Company Communication Planning and Designing Institute， Guangzhou Guangdong，510627，China） Abstract： High-speed railway construction in our country will enter a comprehensive 2015 harvest period. The establishment of the high-speed industriy is a move， but also a new chapter of transportation development in our country， in the process of high-speed trains， involve the high-speed wireless network coverage of the construction， but the difficulty is the problem of high-speed rail tunnel network coverage. Network of universal coverage to enhance passengers aboard a train of happiness， this is also the important aspect of communication in our country and railway combining. Only by comprehensive coverage showed high iron to build， and considering the people travel convenience， high speed rail tunnel as a special network coverage scenario， covering the difficulty is the mobile operators. This article from the traditional loss， minimum distance between overlapping coverage of the body， covering range doppler frequency shift， and policy aspects， WCDMA network is analysed how to cover the high-speed rail tunnel. Hope to be able to give high iron builders more advice， for more breadth of WCDMA network coverage， and then promote people innovative understanding of traffic， the new development in traffic fi