Patent ID: 8743986
Filing Date: 2014-06-03
Classification: H04B

Abstract:
1. A method of receiving data at a terminal in a cell boundary in a mobile communication system which supports Multi Input Multi Output (MIMO), comprising: receiving a first data stream transmitted through multiple transmission antennas from a serving base station; receiving, from a collaborating base station, a second data stream, which is precoded to make at least one of time delay, antenna permutation and stream permutation of the second data stream different from that of the first data stream based on the same source data as the first data stream and is transmitted through multiple transmission antennas; and decoding the first and second data streams, wherein the first data stream and the second data stream are precoded using first and second diagonal matrices for differently setting the time delay according to base stations, wherein the first data stream and the second data stream are respectively precoded by Equations 1 and 2: where, y wherein D where D