| 摘要 |
PURPOSE:To reduce number of operating frequencies and to simplify and economize the system by using a weak radio wave, multiplexing a signal of the wave with the TDM/TDMA system and allocating control channels and communication channels onto one and same frequency. CONSTITUTION:The time division multiplex/time division multiple access system is adopted for the radio line for its multiplexing system, and the line is used for a couple of reception/communication frames, each of frequencies fRXa-fRXn, frXa-frXn is divided into slots having a prescribed interval and one channel is formed by one optional slot pair for reception and communication. Then one frame consists of repetitive periods of plural slots SR1-SRn, Sr1-Sr2 and slots in one frame are assigned to control channels and communication channels. The control channel is used for notice of position identification identification, incoming call identification and idle identification of a communication channel or the like for a base station and used for confirming position identification and storing idle channel identification for the preparation of an incoming/call and call transmission for a mobile station. Thus, number of operating frequencies is decreased, and the equipment is simplified and economized. |
