Patent ID: 8223705
Filing Date: 2012-07-17
Classification: H04L,H04W

Abstract:
1. A method for optimizing performance of a multi-cell orthogonal frequency-division multiple access (OFDMA) network including a set of base stations (BSs), wherein each BS is located in a cell and each BS transmits data on downlink channels to a set of mobile stations (MSs) in the cell, comprising; acquiring, in each BS, channel state information (CSI) and inter-cell interference information (ICI) for each downlink channel to each MS in the cell; selecting, in each BS, a power level and a modulation coding scheme level (MCS) for transmitting the data to each MS on the downlink channels based on the CSI and ICI, such that a bit rate is maximized and the ICI is minimized; and allocating time and frequency resource for transmitting the data on the downlink channels to the set of MSs, such that the allocated resources are minimized to optimize the performance of the network.