发明名称 Partial response signaling for orthogonal frequency division multiplexing
摘要 The system includes a transmitter for generating a signal and a cyclic prefix, wherein the transmitter suppresses a plurality of sub-symbols of the signal to produce a partial response signal. A portion of the partial response signal is dropped and the resulting truncated signal is used to modulate a carrier signal. The carrier signal is transmitted to the receiver through a noisy channel. The receiver receives a noisy signal and recovers the carrier signal and, hence, the partial response signal from the noisy signal. The method includes selecting a cyclic convolver having predefined values, applying the cyclic convolver to a signal to produce a partial response signal, dropping a plurality of sub-symbols of the partial response signal, appending a cyclic prefix at a leading edge of the truncated partial response signal, and transforming the truncated partial response signal with the cyclic prefix to produce a time base signal that is used to generate a modulated carrier signal that is ready for transmission.
申请公布号 US6999503(B1) 申请公布日期 2006.02.14
申请号 US20000704086 申请日期 2000.11.01
申请人 NOKIA MOBILE PHONES LTD. 发明人 VADDE VENKATESH
分类号 H04B1/38;H04L25/497;H04L27/26 主分类号 H04B1/38
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