ＣＤＭＡ的网络规划与优化.docVIP

ＣＤＭＡ的网络规划与优化 　　摘要：伴随着国内运营商的重组，CDMA技术重新受到国内的关注，目前，总的来说CDMA技术的演进主要包括一下三个方向。1) 考虑到cdma2000 1x网络自身演进的要求，制定了cdma2000 1x后续标准。2) 为了满足系统在现有频段上扩展无线宽带数据能力以及在无线数据系统上承载各类应用服务的需要，制定了cdma 2000 1x EV-DO REV，O/A/B标准。3) 为了进一步满足在不同频段/宽带上无线宽带的能力的要求和系统演进的需要，基于OFDMA技术制定了UMB标准。基于以上技术的演进，该文通过对 CDMA网络规划与优化关系的分析， 结合实际探讨了CDMA发展各阶段网络规划与优化的特点，提出了在现阶段需要进一步实现网络规划与优化协调统一的重要性及实施建议。 　　关键词：CDMA；网络规划；优化；协调；统一 　　中图分类号：TN914文献标识码：A文章编号：1009-3044(2008)29-0481-04 　　CDMA Network Planning and Optimization 　　LIANG Bo-yu1,CHEN Xu-xiang2 　　(1.Guangdong Telecom Corporation Limited,Zhuhai Branch,Zhuhai 519000,China;2.Mobile Communications Group Guangdong Co.LTD,Zhuhai 519000,China) 　　Abstract: With the restructuring of the domestic carriers, CDMA technology to domestic concerns, at present, the whole evolution of CDMA technology, including about three directions. 1) taking into account the evolution of cdma2000 1x networks own request, developed a cdma2000 1x standard follow-up. 2) In order to meet the band on the existing system in the expansion of wireless broadband data capability, as well as in the wireless data systems carrying all types of application services, the development of the cdma 2000 1x EV-DO REV, O/A/B standard.3) In order to meet the different band / broadband, wireless broadband capability requirements and the needs of the evolving system based on OFDMA technology developed UMB standard. Based on the evolution of technology over the text of the adoption of CDMA network planning and optimization analysis of the relationship, in light of the actual discussed the various stages of development of the CDMA network planning and optimization feature in the proposed order is Above the need for further network planning and optimization of the importance of harmonization and implementation of the recommendations. 　　Key words: CDMA; network planning; optimization; coordination; unity 　　 　　1 网络规划与网络优化概述 　　 　　1.1 网络规划简述 　　网络规划作为网络建设的前期工作， 主要涵盖了两方面，无线网络规划和网络计算。无线网络规划主要包括链路预算，容量、所需小区站址数目的计算，以及各