SLOW ASSOCIATED CONTROL CHANNEL STROVE SIGNAL GENERATING DEVICE FOR PCS

摘要

In the present invention, when transmitting control data from a base station to a terminal for a personal communication device such as a portable telephone, eight subscribers are based on a control data number assigned through the base station and a 13 MHz reference clock generated by itself. The apparatus for generating a downlink low speed coupled control channel strobe signal of a personal communication terminal capable of generating a strobe signal for a downlink low speed coupled control channel (SACCH) for each data bit based on a 13 MHz clock signal. A corresponding bit synchronization signal is generated, and a time slot synchronization signal having a period of 156.25 bits is generated using the bit synchronization signal and the clock signal, and the count value of the time slot synchronization signal and the reference time slot number are identical. The time slot strobe signal for data transmission and reception and the time slot synchronization signal The frame synchronization signal is generated by using the time slot number generated according to the coefficient, and the frame synchronization signal is generated by counting the frame synchronization signal. Also, the frame synchronization signal is generated based on the low speed combined control channel number assigned to eight subscribers. And outputting a 51-multi frame selection signal, generating a low speed combined control channel frame number, comparing the frame number with a time slot strobe signal corresponding to a period in which both data values coincide. The low speed combined control channel strobe signal for data transmission and reception for 8 subscribers is generated by outputting on the basis of.