摘要
首先对沪宁高铁南京段前期网络存在的问题进行了分析,针对WCDMA网高铁覆盖的特点,逐点分析了影响高铁覆盖的各种因素(多普勒效应、高速软切换、高速重选、隧道、V形地带、超近基站、2G/3G重选等),然后针对不同场景分别制定了应对措施,并列举了4类典型问题的优化实例。
It firstly analyzes the problems on the prophase network in Nanjing section of Hu-Ning high speed railway. In combination with the characteristics of WCDMA high speed railway coverage,it analyzes the factors which effects high speed railway coverage, including Doppler effects, high speed soft handover, high speed reselection,tunneI,V-shape zone, super-close base station and 2G/3G re-selection. The countermeasures are given in view of the different scenes ,and lists the optimization examples of 4 type classical problems.
出处
《邮电设计技术》
2011年第2期39-43,共5页
Designing Techniques of Posts and Telecommunications
关键词
高速铁路
WCDMA
网络优化
对策
High speed railway
WCDMA
Network optimization
Countermeasures
