A method and device for channel estimation and in an ofdm - receiver channel equalization

摘要

Apparatus 100 for estimating a channel and performing equalisation in an OFDM modulation scheme in which a received block symbol rig(k) incorporates a redundant prefix rig0(k), rig1(k), ..., rigD-1 in addition to the useful data to be sent, the apparatus including redundant prefix detection and storage means 60,70 for detecting and storing the redundant prefix in addition to the useful data and processing means 110 for processing the redundant prefix to derive information ^c0, ^c1, ..., ^cD about the channel.