毕业论文-TD-SCDMA室内分布系统规划与设计书.docVIP

摘要 TD-SCDMA是由中国提出的时分双工模式的的第三代移动通信技术，已经在2000年5月的ITU全会上正式成为国际标准。TD-SCDMA采用智能天线、同步CDMA技术、多用户联合检测、动态信道分配、软件无线电、接力切换等一系列高新技术，具有高频谱利用率、低成本、上下行不对称信道可适用于不对称业务等特点。 室内分布系统建设是整个无线网络建设过程中的重要一环，不同场景对室内分布系统设计有着不同的要求，一个优秀的室内分布系统设计方案，可以避免投资浪费，也能提高网络质量从而可以更好的为用户服务，同时还可以为客户创造价值。 文章分析了TD-SCDMA技术、室内分布系统设计的流程和方法。在合理利用现有网络资源的条件下，结合TD-SCDMA基础理论，根据大型写字楼东海大厦的实际情况及网络建设规模，运用无线传播预测模型，对东海大厦组建TD-SCDMA室内网络覆盖进行了前期规划，设计了东海大厦TD-SCDMA室内网络分布系统的方案。 关键词：TD-SCDMA； 室内分布； 网络规划；第三代移动通信 ABSTRACT TD-SCDMA is the third generation mobile communication technology Proposed by China, has already become the international standard officially in May 2000 plenary session of the ITU. It based on smart antennas, synchronous CDMA technology, multi-user joint detection, dynamic channel allocation, software radio, relay switching and a varity of high-tech. It has many advantages，for example, high spectral efficiency, low cost, asymmetric uplink , downlink channel asymmetry which can be applied to business and so on. The construction of the Indoor distribution system is an important part of the construction of the entire wireless network, different scenarios for the interior design of distributed systems have different requirements, an excellent design of indoor distribution system, not only can avoid wasteful investment, but also can improve the network quality and thus can service customer better, and can create value for clients. The article analysed TD-SCDMA technology, network planning process and method. In the rational use of existing cyber source conditions, combining network planning theory, according to the actual situation of Large office buildings DongHai Building and network construction scale, the use of radio propagation prediction model of Large office buildings, formation of TD-SCDMA indoor coverage for the planning and design of Large office buildings, indoor TD-SCDMA network construction scheme. Key words: TD-SCDMA; Indoor distribution; network planning; 3G目录 1 绪 论 1 1.1 本论文的研究背景和意义 1