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METHOD AND APPARATUS FOR ESTIMATING CHANNEL CONDITIONS IN WIRELESS COMMUNICATION SYSTEMS
METHOD AND APPARATUS FOR ESTIMATING CHANNEL CONDITIONS IN WIRELESS COMMUNICATION SYSTEMS
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机译:无线通信系统中信道条件的估计方法和装置
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摘要
A method and corresponding apparatus separately estimates signal amplitude and noise in received signals, particularly symbols encoded using turbo codes. The method and apparatus, however, may be applied to such estimation in power control wireless systems (CDMA systems), other concatenated coding schemes, etc. A method and apparatus initially estimate the signal and noise, separately, in the received signal, such as by using curve fitting techniques. Thereafter, a finer estimate is provided by using the amplitude of received pilot symbols or using an estimate of the noise from the received pilot symbols.
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