METHOD AND DEVICE FOR FILTERING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING CHANNEL ESTIMATE RESULT

摘要

The present invention provides a method and a device for filtering a channel estimation result in the orthogonal frequency division multiplexing (OFDM), to solve the problems in the prior art that the realization of filtering the channel estimation result is complex or the performance is poor. In virtue of the embodiments, the following method is described: time domain synchronous symbols received by a terminal device are converted to frequency domain synchronous symbols; frequency domain impulse response sequences are calculated according to the frequency domain synchronous symbols; minimum mean square (LMS) adaptive filter coefficients are adjusted according to the frequency domain impulse response sequences; a coefficient of a frequency domain filter of a channel estimation result of a data symbol according to the adjusted coefficients; an OFDM channel estimation result is filtered by using the frequency domain filter of the channel estimation result of the data symbol. The corresponding device is also provided in the embodiments. The OFDM channel estimation result frequency domain filter obtained according to the technical solution of the present invention has less calculation, simpler realization and better filtering performance.