METHOD OF RE-TRANSMITTING CHANNEL QUALITY INFORMATION AND SUPPORTING THEREOF IN MOBILE COMMUNICATION SYSTEM,申请号KR20060023669-传众专利搜索

METHOD OF RE-TRANSMITTING CHANNEL QUALITY INFORMATION AND SUPPORTING THEREOF IN MOBILE COMMUNICATION SYSTEM

申请公布号：KR101154991(B1)

申请号：KR20060023669

申请日期：2006.03.14

申请公布日期：2012.06.14

分类号：H04B7/26

主分类号：H04B7/26

摘要：A method for re-transmitting a CQI(Channel Quality Indicator) in a mobile communication system and its support method are provided to distribute limited radio resources effectively by allowing a base station to perform downlink scheduling by using an accurate CQI and thus improve performance of an overall system. A base station transmits a reference signal to a terminal during a data transmission process after establishing a call with a terminal or after the call establishment(S11). The terminal measures quality of a downlink channel by using the reference signal(S12). The terminal transmits a CQI to the base station(S13). The base station transmits feedback information with respect to the received CQI to the terminal(S14). The terminal compares the received feedback information and its CQI information(S15). When a certain condition is met according to comparison result, the terminal determines whether to transmit error information to make the received CQI information and the CQI information at the time when it was transmitted by the terminal(S16).