Patent ID: 7903572
Filing Date: 2011-03-08
Classification: H04L,H04W,Y02D

Abstract:
1. A transmitter in a smart-antenna cellular mobile communication system, comprising: a channel quality indicator (CQI) receiver for receiving a feedback CQI from a mobile station (MS); an other-cell interference estimator for estimating other-cell interference with respect to total noise received at the MS using the feedback CQI; and a rate decider for determining a forward data rate for the MS using a power margin calculated according to the estimated other-cell, interference, and comprising a power margin calculator for calculating the power margin using the estimated other-cell interference and a signal-to-noise ratio (SNR) corrector for calculating a corrected SNR by subtracting the power margin from a feedback SNR being the CQI; wherein the other-cell interference estimator estimates the other-cell interference using a transmission delay of data received from the MS.