SLOW ASSOCIATED CONTROL CHANNEL STROVE SIGNAL GENERATING DEVICE FOR PCS

摘要

The present invention provides a strobe for a slow associated control channel based on a frame start signal transmitted from a base station and a reference clock of 13 MHz in transmitting data from a terminal to a base station in a half rate method. A low speed coupled control channel strobe signal generator for uplink of a personal communication terminal capable of generating a signal. Each data bit has a length of 48 clocks based on a 13 MHz clock. In the personal communication system configured to configure one time slot with bits, a bit synchronization signal is generated based on the reference clock and the frame start signal, and then a time slot synchronization signal is generated based on the bit synchronization signal and the reference clock. This time slot synchronization signal is counted to calculate the current time slot number. Subsequently, a strobe signal corresponding to a time slot number obtained by adding '3' to an assigned time slot number based on the time slot number and an externally allocated time slot number is output. On the other hand, the frame synchronization signal is generated based on the timeslot number, the frame synchronization signal is counted to generate frame number data, and the frame number data is compared with the reference data of 12 or 25 in a period in which both data coincide. A strobe signal is generated for the low speed coupled control channel that outputs a corresponding timeslot strobe signal.