Patent ID: 9215007
Filing Date: 2015-12-15
Classification: H04B,H04L,H04Q

Abstract:
1. An optical burst synchronization method, comprising: selecting one line card chassis from multiple line card chassis connected to a same all-optical switching element, as a reference chassis, and transmitting, by an output port corresponding to a wavelength Fast tunable optical laser (FTL) in the reference chassis, an optical burst test signal by using the FTL respectively to receive ports corresponding to optical receivers (ORs) in the multiple line card chassis connected to the same all-optical switching element, wherein the optical burst test signal carries a transmission timeslot number, and acquiring, by a receive port corresponding to an optical receiver (OR) in each line card chassis connected to the same all-optical switching element, according to an optical path difference between the receive port corresponding to the OR in each line card chassis and the output port corresponding to the FTL in the reference chassis, time of receiving the optical burst test signal, and the transmission timeslot number carried in the optical burst test signal, a time-phase difference between the receive port corresponding to the OR in each line card chassis and the output port corresponding to the FTL in the reference chassis, and adjusting, according to the time-phase difference, a clock phase referenced for receiving electrical burst data on the receive port corresponding to the OR and a clock phase referenced for transmitting electrical burst data on an output port corresponding to an FTL located in the same line card chassis and corresponding to the OR.