INTER-CELLULAR INTERFERENCE DETECTION BY CANCELING DATA CORRUPTION EVENTS REPORTED BY MOBILE STATIONS

摘要

Within a cell of a TDMA mobile communication system, each mobilestation transmits a control message on an up-link frame. On receiving it, the basestation determines if the message quality is affected during transmission. Acorruption status indication is stored into a position of a frame status memorycorresponding to the up-link frame if the message quality is low. When the basestation detects a frame identification contained in the received message, it erasesthe corruption status indication stored in a position identified by the detected frameidentification, and transmits a control message on a down-link frame, containing theresult of the quality determination. In response, the mobile station stores theidentification of the frame of the message into a collision memory, and retransmitsa copy of the up-link control message containing the frame identification.