DATA TRANSMISSION METHOD AND APPARATUS IN MULTIPLE ANTENNA SYSTEM

摘要

A data transmission method in a multiple antenna system defines a code book including one or more pre-coding matrices composed of plural columns and rows, and comprises: a step wherein the code book is at least one type among: a first type in which no elements of the pre-coding matrix are 0, a second type in which one row of the pre-coding matrix includes elements which are not 0 and the remaining rows include one or more elements which are 0, and a third type in which all rows of the pre-coding matrix include one or more elements which are 0; a step wherein an input symbol is pre-coded using the defined code book; and a step wherein the pre-coded symbol is transmitted.