FRAME SYNCHRONIZATION METHOD AMONG BASE STATIONS FOR MOBILE COMMUNICATION

摘要

PURPOSE:To eliminate the degradation of synchronization accuracy by detecting a base station identification number from a reception signal and defining the reception timing of the reception signal as the transmission timing of a base station when the base station identification number coincides with a stored number. CONSTITUTION:TDMA signals transmitted by the base station are received and the TDMA signal reception timing of the base station is detected in a reception control circuit 107 based on clocks generated in the clock synchronization circuit 108 of a TDMA synchronization control part 104. Along with it, the base station identification number is detected in a base station identification number detection part 111 and whether or not the detected base station identification number coincides with the base station identification number stored in a storage part 112. In a frame timing generation circuit 109, when the identification numbers coincide, the reception timings of the TDMA signals from the base stations detected in the circuit 107 are defined as the respective transmission timing of the base stations and the average value is defined as the transmission timing of the present base station.