METHOD OF SYNCHRONIZING FOR MULTI-GROUP IN DISTRIBUTED NETWORKS

摘要

An inter-group synchronization method in a distributed network is disclosed. In an inter-group synchronization between a first group and a second group a predetermined node in the second group receives a beacon signal transmitted from the first group, estimates a frequency group information, time offset and frequency offset of the first group based on the received beacon signal, and transmits the estimated time offset and frequency offset information to at least one other node in the second group when the obtained group information satisfies a predetermined standard. Therefore, the accurate inter-group synchronization is able to be performed. [Reference numerals] (511) Estimate an initial time and decimal multiple frequency option;(513) Compensate for the initial time and decimal multiple frequency option;(521) Detect a group and estimate an integer multiple frequency option;(523) Compensate for the integer multiple frequency option;(531) Estimate a micro time option;(533) Compensate for the micro time option;(541) Estimate a micro decimal frequency option;(543) Compensate for the micro decimal frequency option;(AA) Start;(BB) End