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    • 91. 发明授权
    • Removing bias in a pilot symbol error rate for receivers
    • 消除接收机导频符号错误率的偏差
    • US07522682B2
    • 2009-04-21
    • US11025666
    • 2004-12-29
    • Frank Gerhard Ernst ObernostererPeter Christian GunrebenRainer Walter Bachl
    • Frank Gerhard Ernst ObernostererPeter Christian GunrebenRainer Walter Bachl
    • H03D1/04
    • H04L1/20
    • The present invention provides a method and an apparatus for measuring a reception quality on a wireless communication link to a receiver by removing a bias in a plurality of received pilot symbols and obtaining a channel estimate for a channel, such as a wireless propagation channel, after substantially removing the bias. For a receiver, such as a rake receiver disposed in a base transceiver station, a bias removal module may extract a plurality of coefficients from a wireless propagation channel to remove a bias before a detector may receive the plurality of pilot symbols in the data stream to determine an error rate of the received pilot symbols where channel estimation is based on the received pilot symbols. In this manner, a systematic flaw in a link quality measurement based on an error rate of the received pilot symbols may be resolved for wireless communication systems.
    • 本发明提供一种方法和装置,用于通过去除多个接收到的导频符号中的偏置并且在诸如无线传播信道之后获得诸如无线传播信道的信道的信道估计之后,在到接收机的无线通信链路上测量接收质量,之后 基本上去除偏压。 对于诸如设置在基地收发台中的耙式接收机的接收机,偏置消除模块可以从无线传播信道提取多个系数以消除偏差,之后检测器可以将数据流中的多个导频符号接收到 确定所接收的导频符号的误码率,其中信道估计基于所接收的导频符号。 以这种方式,可以针对无线通信系统解决基于接收到的导频符号的错误率的链路质量测量中的系统缺陷。