论提高TD-SCDMA系统覆盖能力的策略  

Discussion on the.Policies of Enhance TD-SCDMA System Coverage Capability

作　　者：王文婧[1] 常永宇[1] 杨大成[1] 

机构地区：[1]北京邮电大学电信工程学院

出　　处：《现代电信科技》2006年第7期36-40,44,共6页Modern Science & Technology of Telecommunications

基　　金：基金赞助:法国电信研发中心有限公司

摘　　要：无线覆盖是评估网络质量重要的因素之一,覆盖范围的大小直接和网络基础设施投入成正比。TD-SCDMA是我国自主研发的第三代移动通信标准,与cdma2000和 WCDMA等其他制式相比有许多优点和特点,这些优点和特点使得TD-SCDMA在覆盖方面有着广阔的理论研究和实际应用前景。本文介绍了TD-SCDMA的理论覆盖半径以及影响它的覆盖能力的因素,给出了系统级仿真以及链路预算结果,提出了TD- SCMDA对应的小区干扰余量算法,并从优化链路质量、降低干扰和采用覆盖技术三个方面论述如何增强TD-SCDMA系统的覆盖能力,最后提出TD-SCDMA的无线覆盖解决方案。Wireless coverage is one of important factors in network quality evaluations and size of coverage area has direct ratio to network infrastructure investment. TD-SCDMA is 3G mobile telecommunication standard which is researched and developed by China. It has got many advantageous characteristics compared to cdma2000 and WCDMA which bring TD-SCDMA with grand theory research and practical application perspectives in coverage, This paper firstly introduces TD-SCDMA theoretic coverage radius and factors that impact on coverage ability. Then it demonstrates system level simulation and link level budget results. and brings forward TD-SCDMA call interference margin algorithm. This paper discusses how to enhance TD-SCDMA coverage ability in aspects of optimizing link quality. reducing interference and adopting TD-SCDMA wireless coverage solution.

关 键 词：TD-SCDMA 覆盖 系统级仿真 链路预算 小区干扰余量 

分 类 号：TN929.533[电子电信—通信与信息系统] TQ153.11[电子电信—信息与通信工程]