Channel Estimation and Equalization in OFDM Systems

Abstract

A method for estimating a signal-to-interference-plus-noise ratio at a receiver of a wireless communication system OFDM signals may include: determining an estimate ŝserving of the signal power of a serving cell of the communication system based on the channel impulse response estimated for the serving cell, determining an estimate ŝinterfering of the signal power of one or more interfering cells of the communication system based on the channel impulse response estimated for the one or more interfering cells, and determining an estimate of the SINR based on the determined estimate of the signal power of the serving cell and the determined estimate of the signal power of the one or more interfering cells. A Method for equalization of received symbols at a receiver of a wireless communication system using OFDM signals may include: determining an equalizer filter and applying the equalizer filter onto the received signal for equalization of the signal, wherein the equalizer filter is determined in the time domain based on an estimated channel impulse response, an estimated noise covariance and an estimated received symbol covariance.

Dependencies are inferred from the claim text.