作者: Yoshihiro Asashiba , Seiji Kozaki , Hiroaki Mukai , Toshikazu Yoshida
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摘要: According to an aspect of this invention, dynamic bandwidth assignment (DBA) can be performed without interrupting communication a regular cell and interfering with between child stations. In passive optical network including parent station plurality stations, maintenance signal for mini slot is provided. Each the stations sends corresponding if necessary, controls state transition by using concerning on each By controlling transition, performed.