WCDMA系统下行链路CPICH信道捕获性能分析  

Performance Analysis for CPICH Acquisition in WCDMA

作　　者：牛凯[1] 吴伟陵[1] 

机构地区：[1]北京邮电大学信息工程学院,北京100876

出　　处：《北京邮电大学学报》2003年第1期46-49,共4页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金重大资助项目(69896243)

摘　　要：公共导频信道的捕获是WCDMA系统3步同步小区搜索算法的第3步,它给出对基站主扰码的判决信息.通过对公共导频信道的捕获过程进行理论建模,分析了在单径Rician衰落信道下,多址干扰环境中,该信道的检测概率、漏检概率、虚警概率的解析公式,同时讨论了门限设置准则、检测概率特征.The acquisition of CPICH (common pilot channel) provides the primary scrambling code of one base station which is the third step of cell search algorithm in WCDMA systems. By modeling the acquisition process, this paper gives the theoretical formula for the detection probability, missing probability and alarm probability in the case of MAI under the single path Rician fading channel. What's more, we analyze the threshold setting rules and detection probability curve.

关 键 词：WCDMA CPICH信道 捕获性能 多址干扰 小区搜索 主扰码 

分 类 号：TN929.533[电子电信—通信与信息系统]