北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2003, Vol. 26 ›› Issue (1): 46-49.

• 学术论文 • 上一篇    下一篇

WCDMA系统下行链路CPICH信道捕获性能分析

牛 凯, 吴伟陵   

  1. 北京邮电大学 信息工程学院, 北京 100876
  • 出版日期:2004-01-28
  • 作者简介:牛凯(1976—),男,博士生.
  • 基金资助:
    国家自然科学基金重大资助项目(69896243)

Performance Analysis for CPICH Acquisition in WCDMA

N IU Kai, WU Wei-ling   

  1. Info rmat ion Engineering School , Bei jing Universi ty of Posts and Tel ecomm unicati ons, Beijing 100876, China
  • Online:2004-01-28

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。

关键词: 多址干扰, 小区搜索, 主扰码

Abstract: The acquisition of CPICH (common pilot channel) provides the primary scramblingcode 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.

Key words: multiple access interference, cell search, primary scrambling code

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