METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING FEEDBACK INFORMATION IN A WIRELESS PACKET DATA COMMUNICATION SYSTEM

摘要

Methods and apparatuses are provided for transmitting feedback information in a communication system supporting multiple transmission methods with multi antenna transmission. Information for a default Multiple Input Multiple Output (MIMO) mode is received. It is determined whether the default MIMO mode is a Single-User MIMO mode or a Multi-User MIMO mode based on the information for the default MIMO mode. First Channel Quality Indicator (CQI) feedback information is calculated for one of the Single-User MIMO mode and the Multi-User MIMO mode determined as the default MIMO mode. The first CQI feedback information and DELTA CQI feedback information, which is a differential value between the first CQI feedback information and second CQI feedback information for a non-default MIMO mode, are transmitted.

主权项

1. A method for transmitting feedback information in a communication system supporting multiple transmission methods with multi antenna transmission, the method comprising:
receiving information for a default Multiple Input Multiple Output (MIMO) mode; determining whether the default MIMO mode is a Single-User MIMO mode or a Multi-User MIMO mode based on the information for the default MIMO mode; calculating first Channel Quality Indicator (CQI) feedback information for one of the Single-User MIMO mode and the Multi-User MIMO mode determined as the default MIMO mode; and transmitting the first CQI feedback information and DELTA CQI feedback information, which is a differential value between the first CQI feedback information and second CQI feedback information for a non-default MIMO mode.