Title:
光通信システムの通信方法、光通信システム、子局装置、制御装置並びにプログラム
Document Type and Number:
Japanese Patent JP5226901
Kind Code:
B2
Abstract:
A control device of a communication system according to the present invention relates to a control device of a communication system that connects a plurality of slave station apparatuses to a master station apparatus using a common line. The control device includes a power-saving control unit 11d that intermittently repeats, based on a power saving permission signal transmitted from the master station apparatus, power saving control in which the slave station stops or reduces power supply to a transmitter or a receiver for a predetermined pause duration while maintaining a communication link and a monitoring unit 11c that monitors out of synchronization by comparing a synchronization signal included in a bandwidth allocation signal and a time of the own apparatus. The control device shifts from a registered state to a deregistered state and stops transmission by the transmitter when the monitoring unit 11c detects the out of synchronization. On the other hand, after the pause duration of the power saving control, the control device suppresses the shift to the deregistered state due to the detection of the out of synchronization.
Inventors:
Kenichi Nagura
Hiroaki Mukai
Seiji Kozaki
Daisuke Ito
Masanori Tanaka
Hiroaki Mukai
Seiji Kozaki
Daisuke Ito
Masanori Tanaka
Application Number:
JP2012547600A
Publication Date:
July 03, 2013
Filing Date:
December 08, 2010
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H04L29/08; H04L12/44; H04L29/00
Domestic Patent References:
| JP2010114830A | 2010-05-20 | |||
| JP2006041807A | 2006-02-09 | |||
| JP2010213259A | 2010-09-24 | |||
| JP2009260970A | 2009-11-05 | |||
| JP2010239278A | 2010-10-21 | |||
| JP2010114830A | 2010-05-20 | |||
| JP2006041807A | 2006-02-09 | |||
| JP2010213259A | 2010-09-24 | |||
| JP2009260970A | 2009-11-05 | |||
| JP2010239278A | 2010-10-21 |
Attorney, Agent or Firm:
Hiroaki Sakai