KR970055969A - Downlink broadcast control channel strobe signal generator for personal communication terminal - Google Patents

Abstract

The present invention provides a downlink broadcast based on a frame number of control data set through a base station and a reference clock of 13 MHz, which is generated by the base station in transmitting a control data (C ANT ANT R Φ τ Α τ τ) from a terminal to a base station for a personal communication device such as a portable telephone. The present invention relates to a downlink broadcast control channel strobe signal generator of a personal communication terminal capable of generating a strobe signal for a control channel (BCCCH), and generates a bit synchronization signal corresponding to each data bit based on a 13 MHｚ clock signal. And using the bit synchronization signal and the clock signal, generate a time slot synchronization signal having a period of 156.25 bits, and time slot strobe for data transmission and reception when the count value of the time slot synchronization signal and the reference time slot number coincide. In addition to generating a signal, the signal is generated according to the coefficient of the timeslot synchronization signal. The frame synchronization signal is generated using the generated time slot number, and then the frame synchronization signal is counted to generate the frame number. The data number is compared by comparing the frame number corresponding to the set reference data value. By outputting the timeslot strobe signal corresponding to the matching period, the broadcast control channel strobe signal for data transmission and reception is generated.

Description

Downlink broadcasting control channel strobe signal generator of 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 broadcast 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 number counting means for outputting frame number data by counting the frame synchronous signal outputted from the frame synchronous signal generating means, and counted by the frame number counting means. And a downlink broadcast control channel strobe signal generating means for comparing the frame number with the frame number for the set downlink broadcast control channel and outputting a time slot strobe signal corresponding to a period in which both data values coincide. Downlink broadcast control channel strobe signal generator of a personal communication terminal. ※ Note: The disclosure is based on the initial application.