MULTI-FRAME SUPERVISORY METHOD

摘要

PROBLEM TO BE SOLVED: To synchronize the phase of a multi-frame(MF) of an incoming SG channel of n (where n is an integer of 2 or over) MF configuration from each transmitter with a phase of MF in a distributer by eliminating the need for detecting the MF of each subscriber. SOLUTION: A distributer 4 sends representative MF information 20 which adopts n×m MF configuration (where m is an integer of 1 or over) whose phase has a prescribed relation with an MF phase of an outgoing SG channel adopting nMF configuration to each transmitter 3 simultaneously, and each transmitter 3 reflects the representative MF information subjected to a prescribed phase conversion, the distributer 4 detects the reflected representative MF information corresponding to the transmitter 3 and the MF phase of the incoming SG channel adopting the nMF configuration from each transmitter 3 is synchronized with the MF phase in the distributer 4.