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Documents TD无线接入系统中NodeB无线资源优化研究
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  • Author Author: sophie0love
  • Date Created: 14 Nov 2010 6:01 AM Date Created
  • Last Updated Last Updated: 9 Nov 2021 4:47 PM
  • Views 312 views
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TD无线接入系统中NodeB无线资源优化研究

TD-SCDMA移动通信系统是我国第一个拥有自主知识产权的国际电信标准。TD-SCDMA标准综合了TDD和CDMA的所有技术优势,具有灵活的空中接口,并采用了智能天线、联合检测等先进技术,在三个主流标准中,具有最高的频谱利用率,在系统容量和抗干扰能力等方面也有突出优势,因而受到国内外的普遍关注。随着3G技术日渐成熟,3G、B3G以及4G系统的设计目标就是希望无线通信系统能够提供高速数据业务速率和频谱利用率,优化系统资源,降低业务延迟,以满足和互联网业务相融合等形式全新的移动宽带多媒体业务的需求。因此TD-SCDMA无线接入系统中对于无线通信网络有限而宝贵的空中接口资源的优化分配和整合处理是个值得研究的课题。基于上述考虑,本文对TD无线接入系统中NodeB的无线资源优化进行了研究。 本文将TD-SCDMA系统无线接入网中Iub接口一端的基站作为研究对象,详细分析和研究了微基站(Micro NodeB)的硬件体系和软件结构,通过C语言编程实现了Micro Node B无线资源的管理和优化功能,具体工作如下: (1)在微基站NBAP软件模块中加入HSDPA技术,通过C语言编程设计出NBAP软件模块中负责协议实现的PI子模块和负责NBAP无线资源存储及管理的PT子模块。 (2)在微基站NBAP软件模块中加入可以支持多媒体无线应用业务的ATM/IP双栈传输承载技术,通过C语言编程进行了RT和PI子模块的软件设计和实现,以及NBAP与BCP内OM和ASG子系统的接口设计。 (3)通过采用整基站测试方法对所设计模块的可行性进行了测试,结果表明所设计的模块满足ATM/IP双栈设计的业务需求。

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