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    • 10. 发明申请
    • CDMA RECEIVER
    • CDMA接收机
    • WO0154322A3
    • 2001-12-27
    • PCT/EP0100494
    • 2001-01-17
    • INFINEON TECHNOLOGIES AGDOETSCH MARKUSKELLA TIDEYASCHMIDT PETERJUNG PETERPLECHINGER JOERGSCHNEIDER MICHAEL
    • DOETSCH MARKUSKELLA TIDEYASCHMIDT PETERJUNG PETERPLECHINGER JOERGSCHNEIDER MICHAEL
    • H04B1/707H04J11/00
    • H04B1/712H04B1/7103H04B2201/70701H04J13/0044
    • The invention relates to a CDMA receiver for receiving, in a multiple subscriber environment, a CDMA signal transmitted with a chip rate by a transmitter via different signal paths of a physical transmission channel. Said CDMA receiver comprises: a receiving device (1) for receiving the CDMA signal; a rake receive circuit (6) with a number of parallelly connected delay devices (71-7n) for detecting the signal components of the CDMA signal that are transmitted via the different signal paths; a channel estimation circuit (20) for estimating the channel coefficients h of a transmission channel H by using a predetermined reference data sequence contained in the received CDMA signal; a weighting coefficient calculation device for calculating weighting coefficients m for the different signal components of the CDMA signal according to the estimated channel coefficients h and to the stored spread codes and scrambling codes; a weighting circuit (12) for weighting the signal components with the calculated weighting coefficients m, and; a combiner (15) for combining the weighted signal components to form an estimated received data signal.
    • 一种CDMA接收机,用于在多用户环境中通过物理传输信道的不同信号路径接收来自发射机的码片速率的CDMA信号,包括:接收装置(1),用于接收CDMA信号; 具有多个并行连接的延迟装置(71-7n)的瑞克接收电路(6),用于检测通过各种信号路径传输的CDMA信号的信号分量; 信道估计电路(20),用于借助包括在所接收的CDMA信号中的预定参考数据序列来估计传输信道H的信道系数h; 加权系数计算装置,用于根据估计的信道系数h和存储的扩频码和扰码计算CDMA信号的各种信号分量的加权系数m; 加权电路(12),用于用所计算的加权系数m对信号分量进行加权; 和组合器(15),用于将加权信号分量组合成估计的接收数据信号。