Patent ID: 8705404
Filing Date: 2014-04-22
Classification: H04B,H04L,H04W

Abstract:
1. A method for a mobile station to receive a signal using a collaborative multiple-input multiple-output (Co-MIMO) scheme, the method comprising: measuring a channel from a serving base station and collaborative base stations including at least one neighboring base station, wherein the collaborative base stations perform the collaborative MIMO scheme together with the serving base station; determining precoding matrix indexes for each of the collaborative base stations and reporting the precoding matrix indexes to the serving base station; and receiving a same signal or independent signals from the collaborative base stations, wherein the precoding matrix indexes for each of the collaborative base stations are determined by sequentially selecting a prescribed number of precoding matrix indexes in which a multi-cell diversity gain or a multi-cell multiplexing gain is maximally obtained, when the mobile station collaboratively receives the same signal or independent signals from each of the collaborative base stations.