Patent ID: 7768987
Filing Date: 2010-08-03
Classification: H04B,H04L

Abstract:
1. A method of transmitting and receiving data using Channel State Information (CSI) in a mobile communication system, comprising the steps of: setting, by a Base Station (BS), the CSI of a Mobile Station (MS) to an initial CSI and transmitting data to the MS according to the initial CSI; transmitting, by the MS, a downlink CSI to the BS; setting, by the BS, a group of the MS based on the downlink CSI; and transmitting, by the BS, data to the MS according to a frequency hopping pattern for the group of the MS among frequency hopping patterns preset for predetermined groups, wherein the frequency hopping pattern for the group of the MS is determined according to whether coherence time measured by the MS runs over a preset time or a coherence bandwidth measured by the MS is greater than a threshold, wherein the frequency hopping pattern for the group of the MS is generated according to a frequency hopping speed that is faster than a currently used frequency hopping speed on at least one of a band basis and a subcarrier basis, when the coherence time runs over the preset time or the coherence bandwidth is greater than the threshold.