KR970055975A - Downlink call control channel strobe signal generator for personal communication terminal - Google Patents

Abstract

According to the present invention, in the transmission of control data (C ANT ANT R ANT ATA) from a base station to a terminal for a personal communication device such as a mobile phone, the present invention is based on a frame number of control data allocated through the base station and a reference clock of 13 MHｚ which is generated by itself. The present invention relates to a downlink call control channel strobe signal generator of a personal communication terminal capable of generating a strobe signal for a downlink call control channel (PCH) to a subscriber, and corresponding to each data bit based on a 13 MHｚ clock signal. A 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 data is generated when the count value of the time slot synchronization signal and the reference time slot number coincide. In addition to generating a time slot strobe signal for transmission and reception, The frame synchronization signal is generated by using the time slot number generated according to the coefficient of the signal, and then the frame synchronization signal is counted to generate the frame number. The frame number corresponding to the set reference data value is compared. By outputting the timeslot strobe signal corresponding to the period in which both data values coincide, the call control channel strobe signal for data transmission and reception is generated.

Description

Downlink call control channel strobe signal generator for personal communication terminal

Since this is an open matter, no full text was included.

5 is a circuit diagram showing the configuration of a downlink call control channel strobe signal generator of a personal communication terminal according to an embodiment of the present invention.

Claims (1)

A personal communication system configured to form a time slot with 156.25 bits and each data bit having a length of 48 clocks based on a clock of 13MHｚ, comprising: clock generating means for generating a reference clock of 13MHｚ and the reference; A bit synchronous signal generating means for generating a bit synchronous signal based on a clock and a frame start signal, a time slot synchronous signal generating means for generating a time slot synchronous signal based on the bit synchronous signal and a reference clock, and the time slot synchronous signal A time slot number counting means for counting and outputting a current time slot number, a strobe signal corresponding to the assigned time slots based on the time slot number assigned from the outside and the time slot number counted by the time slot number counting means; Time slot strobe signal generating means for outputting, Time slot number outputting from said time slot number counting means Frame synchronous signal generating means for outputting a frame synchronous signal based on the frame, frame number counting means for counting the frame synchronous signal outputted from the frame synchronous signal generating means and outputting frame number data, and counting by the frame number counting means; And a downlink call control channel strobe signal generating means for outputting a time slot strobe signal for the corresponding call control channel generated based on the signal generated when the frame number is 6, 12, 10, or 20. Downlink call control channel strobe signal generator of a personal communication terminal. ※ Note: The disclosure is based on the initial application.