Patent ID: 8724755
Filing Date: 2014-05-13
Classification: H04L

Abstract:
1. A receiving apparatus configured to receive a digital modulation signal including a known signal and a data signal within a frame, comprising: a receiving part configured to down-convert the digital modulation signal to a baseband signal; a channel estimation part configured to estimate a multi-path channel based on the baseband signal and to obtain channel estimates; a first replica generation part configured to generate a first replica which is a replica of the known signal and is included in the baseband signal, based on the channel estimates obtained by the channel estimation part; a first replica removal part configured to remove the first replica from a target frame in the baseband signal; a nulling part configured to forcefully null the baseband signal for at least a portion of the time period where an inter-frame interference occurs due to a delay wave having a delay time longer than the known signal; and a cyclic-addition part configured to perform cyclic-addition between a front side portion and a rear side portion in the target frame, including the portion nulled by the nulling part.