随着无线通信技术的普及，中国的通信运营商在无线领域的竞争也更加激烈。自年初3G牌照正式发放后，中国移动，中国联通，中国电信开始在全国范围内建设3G网络。
With the rapid development of the wireless communication,the competition in the wireless yields began more and more intense among the wireless telecommunication corporations in China.Since obtained 3G licenses, China Mobile, China Unicom, China Telecom began building a nationwide 3G network.
其中TD-SCDMA网络的建设对我国具有深远的意义。室内覆盖系统又是其中很重要的一部分。本课题的研究对于今后更大规模的TD-SCDMA商用网络的工程建设具有参考价值。
The TD-SCDMA network construction has far-reaching significance in China. The indoor coverage system is a very important part of the trial network.The study of the subject has reference value for the future large-scale commercial TD-SCDMA network construction.
本文首先对第三代通信标准及其演进技术做了介绍，并简述了具有自主知识产权的TD-SCDMA的特点，截止目前其网络建设与运营情况，及国家已经出台的相关扶持政策。
This paper introduced 3G and the evolution of technology at first,and bridfly described the characteristics of TD-SCDMA,which we have independent intellectual property rights.Up to now the network construction and operations ,and promulgated related support policy ,has involves 。
由于室内移动通信存在覆盖、容量及质量等方面的问题，有必要进行室内覆盖分布系统的建设。室内分布系统由信号源和信号分布系统两部分组成。根据信号源的不同，室内覆盖分布系统可分为无源分布系统、有源分布系统及光纤分布系统三类。另外，本文对室内覆盖的规划流程简单地做了介绍。在进行室内覆盖方案设计时需要注意直放站引入对无线系统容量的影响。
As the indoor mobile communication coverage exist the coverage,the capacity and the quality problems,it is necessary to construct indoor coverage. Indoor distribution system is composed of the signal source and signal distribution system.According to different sources,indoor coverage distribution system can be divided into passive distribution system,active distribution system and fiber optic distribution system.In addition,the paper has simply introduced the planning process of indoor coverage.When develop indoor coverage solution,the introduction directly repeater station, we need to consider the impact of wireless system capacity 。
在设计TD-SCDMA室内分布系统时，要根据不同的场景选择合适的信号源，天线的选择与布放也需要考虑，同时要控制室内信号的外泄，及考虑系统间干扰等因素。本文根据几种可能的情况讨论了设计TD-SCDMA室内分布系统方法。
In the design of TD-SCDMA indoor distribution system,according to the different scenes,we need choose a suitable signal sourcing.We also need to consider the antenna selection and deployment,signal leakage,and the factors of interference between different systems.According to several possible scenarios the paper discussed the design of TD-SCDMA indoor distribution systems approach.Finally the paper cited a few examples of typical scenes.
目前，室内覆盖存在较多的问题，但是至今该领域是政策和监管的真空地带，没有任何相关的法律、法规对其建设进行指导。本文最后探讨了几种可能的多网合一系统的建设模式和监管方案。
At present,the indoor coverage exist many problems,but the area lack of policy and regulatory so far,there are not any relevant laws and regulations to guide indoor coverage constructions.Finally,the paper explored several possible multi-network integration system and the monitoring programmes of the construction of model.
发表于 2009-5-19 21:18:51
