METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION IN A WIRELESS COMMUNICATIONS SYSTEM
    1.
    发明申请
    METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION IN A WIRELESS COMMUNICATIONS SYSTEM 审中-公开
    用于无线通信系统中的干扰消除的方法和设备

    公开(公告)号:WO2006094141A2

    公开(公告)日:2006-09-08

    申请号:PCT/US2006007455

    申请日:2006-03-01

    CPC classification number: H04B1/71072 H04L1/0026 H04L25/0328

    Abstract: Successive interference cancellation is performed with improved computational efficiency while offering performance approaching that of full CRC-based successive interference cancellation. In a "blind" interference cancellation technique, reconstructed streams are used for interference cancellation without regard to whether the reconstructed streams were properly decoded. In a "semi-blind" interference cancellation technique, decoder outputs from linear equalization can be used instead of decoder outputs from successive interference cancellation in those cases where linear equalization produces accurate decoding but successive interference cancellation does not.

    Abstract translation: 以提高的计算效率执行连续干扰消除,同时提供接近完全基于CRC的连续干扰消除的性能。 在“盲”干扰消除技术中,重构流用于干扰消除,而不考虑重建流是否被正确解码。 在“半盲”干扰消除技术中,在线性均衡产生精确解码但不连续干扰消除的情况下,可以使用来自线性均衡的解码器输出来代替来自连续干扰消除的解码器输出。

    OPTIMAL WEIGHTS FOR MMSE SPACE-TIME EQUALIZER OF MULTICODE CDMA SYSTEM
    3.
    发明申请
    OPTIMAL WEIGHTS FOR MMSE SPACE-TIME EQUALIZER OF MULTICODE CDMA SYSTEM 审中-公开
    用于MMSE空间均衡器的多重CDMA系统的最优权重

    公开(公告)号:WO2007001867A8

    公开(公告)日:2008-02-28

    申请号:PCT/US2006023210

    申请日:2006-06-14

    CPC classification number: H04B7/0891 H04B7/02 H04J13/00 H04L2025/03426

    Abstract: Aspects of the invention provide an enhanced chip-level linear space-time equalizer 118 for multiple-input-multiple-output (MIMO) multi-code CDMA systems reusing same spreading codes in different transmit antennas 114. Reuse of the spreading codes at the transmitter 104, 204 creates an on-time inter-stream interference component (or cross-talk among distinct transmit antenna signals) which reuse the same spreading code as the desired signal in the soft metric sequence of the MIMO CDMA receiver after MMSE space-time equalization. The equalizer 118 has a MMSE weighting vector that takes the despreading effect into account.

    Abstract translation: 本发明的方面提供了一种用于在不同发射天线114重复使用相同扩展码的多输入多输出(MIMO)多码CDMA系统的增强的芯片级线性时空均衡器114.再现利用发射机 104,204在MMSE空时均衡之后产生在MIMO CDMA接收机的软度量序列中重用与所需信号相同的扩展码的导通时间间干扰分量(或不同发射天线信号之间的串扰) 。 均衡器118具有考虑解扩效应的MMSE加权向量。

    OPTIMAL WEIGHTS FOR MMSE SPACE-TIME EQUALIZER OF MULTICODE CDMA SYSTEM
    4.
    发明申请
    OPTIMAL WEIGHTS FOR MMSE SPACE-TIME EQUALIZER OF MULTICODE CDMA SYSTEM 审中-公开
    用于MMSE空间均衡器的多重CDMA系统的最优权重

    公开(公告)号:WO2007001867A2

    公开(公告)日:2007-01-04

    申请号:PCT/US2006023210

    申请日:2006-06-14

    CPC classification number: H04B7/0891 H04B7/02 H04J13/00 H04L2025/03426

    Abstract: Aspects of the invention provide an enhanced chip-level linear space-time equalizer 118 for multiple-input-multiple-output (MIMO) multi-code CDMA systems reusing same spreading codes in different transmit antennas 114. Reuse of the spreading codes at the transmitter 104, 204 creates an on-time inter-stream interference component (or cross-talk among distinct transmit antenna signals) which reuse the same spreading code as the desired signal in the soft metric sequence of the MIMO CDMA receiver after MMSE space-time equalization. The equalizer 118 has a MMSE weighting vector that takes the despreading effect into account.

    Abstract translation: 本发明的方面提供了一种用于在不同发射天线114重复使用相同扩展码的多输入多输出(MIMO)多码CDMA系统的增强的芯片级线性时空均衡器114.再现利用发射机 104,204在MMSE空时均衡之后产生在MIMO CDMA接收机的软度量序列中重用与所需信号相同的扩展码的导通时间间干扰分量(或不同发射天线信号之间的串扰) 。 均衡器118具有考虑解扩效应的MMSE加权向量。

Patent Agency Ranking