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METHOD AND APPARATUS FOR CHANNEL GAIN AND CHANNEL DELAY ESTIMATION IN A MULTI-CARRIER CDMA SYSTEM
METHOD AND APPARATUS FOR CHANNEL GAIN AND CHANNEL DELAY ESTIMATION IN A MULTI-CARRIER CDMA SYSTEM
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机译:多载波CDMA系统中信道增益和信道时延估计的方法和装置
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摘要
A receiver for a multi-carrier CDMA system receives a signal transmitted having a known pilot sequence on plural sub-carriers. The system includes plural down-converters for down-converting the received signal to baseband signals. A delay and channel estimator correlates at least one of the baseband signals with a single wideband pilot signal, the single wideband pilot signal including all of the known pilot sequences, to produce an estimate of channel gain and multi-path delay. Plural demodulators, one for each of the plural sub-carriers, are operatively coupled to the delay and channel estimator, each for demodulating one of the plural baseband signals using the estimate of channel gain and multi-path delay.
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