APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING A CHANNEL QUALITY INFORMATION IN A COMMUNICATION SYSTEM

摘要

An apparatus and a method for transmitting/receiving CQI(Channel Quality Indication) in a communication system are provided to transmit/receive a CQI by using an average CQI method by MS(Mobile Station) group having a spatial association. A BS(Base Station)(200) searches MSs which are located within a certain range and have similar slow fading characteristics and groups them(208), and transmits a group_CQI_pair message to the first MS(202) among the MSs belonging to the group. Upon receiving the group_CQI_pair message, the first MS generates an ACK message indicating that the group_CQI_pair message has been received without an error, and transmits it to the BS(210). The BS transmits the group_CQI_pair message to the second MS(204)(212). The second MS transmits the ACK message and transmits it to the BS(214). The BS transmits the group_CQI_pair message to the nth MS(206)(216). The nth MS transmits the ACK message to the BS(218). When the first MS is designated as a representative terminal, it generates an average CQI and generates and transmits a CQI_feedback message to the BS(220). When the second MS is designated as a representative terminal, it generates a CQI_feedback message including an average CQI and transmits it to the BS(222). When the nth MS is designated as a representative terminal, it generates a CQI_feedback message including an average CQI and transmits it to the BS(224). When the first MS is designated as a representative terminal, it generates a CQI_feedback message including an average CQI and transmits it to the BS(226).