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RACH RECEPTION BY REPEATED USE OF DATA FFT AND AN IFFT FOLLOWED BY CONCATENATION OF THE RESULTING TIME SIGNALS
RACH RECEPTION BY REPEATED USE OF DATA FFT AND AN IFFT FOLLOWED BY CONCATENATION OF THE RESULTING TIME SIGNALS
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机译:重复使用数据FFT进行RACH接收,然后将结果时间信号放大以进行IFFT
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摘要
Methods and devices for extracting a random access channel (RACH) preamble are provided using as input a number of Fast Fourier Transformed (FFT) symbols, in order to extract the RACH preamble from a signal received in a base station from a user device in a radio communication system. An initial cyclic prefix (symbol CP) is removed prior to performing FFT on symbols. A phase adjustment is performed to compensate for group delays due to symbol CP gaps occurring when generating the baseband signal, the phase adjustment being determined individually for each symbol.
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