Multi-path interference cancellation for transmit diversity
    7.
    发明授权
    Multi-path interference cancellation for transmit diversity 有权
    用于发射分集的多径干扰消除

    公开(公告)号:US07218692B2

    公开(公告)日:2007-05-15

    申请号:US10172843

    申请日:2002-06-17

    IPC分类号: H03D1/04

    CPC分类号: H04L1/0668 H04B7/0669

    摘要: The present invention provides an apparatus, system and method for removal of interference due to multi-path for multiple transmit antennas (hereinafter referred to as MTA-MPIC) for High Speed Downlink Packet Access (HSDPA) encoded for transmit diversity, such as Space-Time Transmit Diversity (STTD). For a single receive antenna, the signal is received (25) and each multi-path delayed signal is demodulated (21). The demodulation can include long code removal and despreading. Subsequently, each demodulated signal is received by the RAKE receiver (22) for determining the channel estimate and channel normalization for the total HSDPA signal, and for computing space-time decoding for the HSDPA signal. Following the space-time decoding, a data decision is made (23). Next, reconstructed interference signals are generated (24) and combined with the received signal (25). For other user signals, an interference estimate is made from the despreader (322) outputs without applying the RAKE/space-time coding operations.

    摘要翻译: 本发明提供一种用于消除针对用于发射分集编码的高速下行链路分组接入(HSDPA)的多个发射天线(以下称为MTA-MPIC)的多路径干扰的装置,系统和方法, 时间发射分集(STTD)。 对于单个接收天线,接收信号(25),并且每个多径延迟信号被解调(21)。 解调可以包括长码去除和解扩。 随后,RAKE接收机(22)接收每个解调信号,用于确定总HSDPA信号的信道估计和信道标准化,并用于计算HSDPA信号的时空解码。 在空时解码之后,进行数据判定(23)。 接下来,生成重构的干扰信号(24)并与接收信号(25)组合。 对于其他用户信号,在不应用RAKE /空时编码操作的情况下,从解扩器(322)输出进行干扰估计。