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    • 1. 发明申请
    • METHOD AND APPARATUS FOR AUTOMATICALLY CORRECTING RECEIVER OSCILLATOR FREQUENCY
    • 用于自动校正接收器振荡器频率的方法和设备
    • WO2007015788A3
    • 2007-07-19
    • PCT/US2006027585
    • 2006-07-17
    • INTERDIGITAL TECH CORPBULTAN AYKUTPAN JUNG-LINYANG RUIKEARNEY KENNETH P
    • BULTAN AYKUTPAN JUNG-LINYANG RUIKEARNEY KENNETH P
    • H04B1/00
    • H03J7/04
    • A method and apparatus for automatically correcting the frequency of a local oscillator of a receiver. A primary common pilot channel (CPICH) code sequence is generated by a CPICH code generator based on a reference cell identification signal and a frame start signal. The received despread CPICH code sequence is used to generate an estimated frequency error signal. A control voltage generator based on the estimated frequency error signal generates a control voltage signal. The CPICH code generator generates the CPICH code sequence based on signals received from a high speed downlink packet access (HSDPA) serving cell when HSDPA is active, or a timing reference cell when HSDPA is not active. The present invention achieves full maximum ratio combining gain when space-time transmit diversity (STTD) is used, even without receiving a transmit diversity indication.
    • 一种自动校正接收机本地振荡器频率的方法和装置。 基于参考小区识别信号和帧起始信号由CPICH码发生器生成主公共导频信道(CPICH)码序列。 所接收的解扩CPICH码序列被用于生成估计的频率误差信号。 基于估计的频率误差信号的控制电压生成器生成控制电压信号。 CPICH码发生器基于HSDPA有效时从高速下行链路分组接入(HSDPA)服务小区接收到的信号或HSDPA未激活时的定时参考小区产生CPICH码序列。 即使没有接收到发射分集指示,当使用空时发射分集(STTD)时,本发明也实现了全部最大比合并增益。
    • 4. 发明申请
    • METHOD AND APPARATUS FOR AUTOMATICALLY CORRECTING RECEIVER OSCILLATOR FREQUENCY
    • 用于自动校正接收器振荡器频率的方法和装置
    • WO2007015788A2
    • 2007-02-08
    • PCT/US2006/027585
    • 2006-07-17
    • INTERDIGITAL TECHNOLOGY CORPORATIONBULTAN, AykutPAN, Jung-LinYANG, RuiKEARNEY, Kenneth, P.
    • BULTAN, AykutPAN, Jung-LinYANG, RuiKEARNEY, Kenneth, P.
    • H04B3/46
    • H03J7/04
    • A method and apparatus for automatically correcting the frequency of a local oscillator of a receiver. A primary common pilot channel (CPICH) code sequence is generated by a CPICH code generator based on a reference cell identification signal and a frame start signal. The received despread CPICH code sequence is used to generate an estimated frequency error signal. A control voltage generator based on the estimated frequency error signal generates a control voltage signal. The CPICH code generator generates the CPICH code sequence based on signals received from a high speed downlink packet access (HSDPA) serving cell when HSDPA is active, or a timing reference cell when HSDPA is not active. The present invention achieves full maximum ratio combining gain when space-time transmit diversity (STTD) is used, even without receiving a transmit diversity indication.
    • 一种用于自动校正接收机的本地振荡器的频率的方法和装置。 基于参考小区识别信号和帧起始信号,由CPICH码发生器生成主公共导频信道(CPICH)码序列。 接收的解扩CPICH码序列用于产生估计的频率误差信号。 基于估计频率误差信号的控制电压发生器产生控制电压信号。 当HSDPA处于活动状态时,CPICH码发生器基于从高速下行链路分组接入(HSDPA)服务小区接收的信号,或者当HSDPA不活动时,定时参考小区,生成CPICH码序列。 即使没有接收到发射分集指示,本发明在使用空时传输分集(STTD)时实现了全最大比组合增益。