CLOCK SUPPLY DEVICE OF WIRELESS LOCAL LOOP SYSTEM

摘要

PURPOSE: A clock supply device is provided to improve the efficiency of a WLL(wireless local loop) system by preventing a slip generation by the disaccord of a clock frequency between systems. CONSTITUTION: The clock supply device of the WLL system comprises: a clock receiving unit(10) to receive a standard clock for a HDB3 E1 from a CIVA of a DOTS(Digital Office Timing Supplier) or of a switching point and a ELIA2 of a radio port controller; a clock generating unit(20) to generate a system clock to synchronize in the standard clock for synchronizing; a clock dividing unit(30) to offer the system clock generated from the clock generating unit(20) by dividing corresponding to the clock needed by each block in the radio port controller or inside the radio port; a power unit(40) to supply power needed to each block inside the clock receiving unit(10), the clock generating unit(20), and a clock dividing unit(30).