Patent ID: 7583739
Filing Date: 2009-09-01
Classification: H04L

Abstract:
1. A channel estimation device that is used in a wireless receiver that receives a plurality of pilot signals through a plurality of reception antennas, the pilot signals being modulated by a multicarrier method and being transmitted from a plurality of transmission antennas, the pilot signals being orthogonal to one another, the channel estimation device comprising: an estimation unit that determines a channel estimate value for each unit time slot and each unit sub carrier; and an averaging unit that averages the channel estimate values over a plurality of time slots including a target time slot and a plurality of sub carriers including a target sub carrier, thereby determining an average channel estimate value, wherein the weighting factor of each of the channel estimate values to be averaged is represented by the product of a frequency component that varies with a channel variation in the frequency domain and a time component that varies with a channel variation in the time domain.