Patent ID: 9137053
Filing Date: 2015-09-15
Classification: H04L

Abstract:
1. An apparatus configured for estimating a channel by considering a residual synchronization offset, the apparatus comprising: a channel estimating unit configured to estimate the channel using pilots scattered over a plurality of orthogonal frequency division multiplexing (OFDM) symbols and calculate a first channel estimated value as the estimation result, when an OFDM symbol for which channel estimation has been performed and an OFDM symbol for which channel compensation needs to be performed are different from each other; a phase reflecting unit configured to calculate a phase generated by the residual synchronization offset in proportion to a difference between a channel estimation time and a channel compensation time, and calculate a second channel estimated value by reflecting the calculated phase in the first channel estimated value; and a channel compensating unit configured to compensate for the channel using the second channel estimated value.