Patent ID: 8948098
Filing Date: 2015-02-03
Classification: H04B

Abstract:
1. A method for transmitting data in a wireless communication system, comprising: determining a channel precoding matrix based on channel state information received from a receiver; determining a current precoding matrix based on a previous precoding matrix stored in a memory and the channel precoding matrix; and precoding data with the current precoding matrix; transmitting the precoded data to the receiver via a plurality of antennas; storing the current precoding matrix as the previous precoding matrix into the memory; and repeating the steps of determining a channel precoding matrix, determining a current precoding matrix, precoding, transmitting, and storing, for next data transmission, wherein the precoding data comprises precoding data and a dedicated pilot with the current precoding matrix, wherein the transmitting the precoded data comprises transmitting the precoded data and the precoded dedicated pilot to the receiver via the plurality of antennas, and wherein the channel state information is created by multiplying the precoded dedicated pilot received by the receiver and the dedicated pilot.