FIELD: radio engineering, communication.
SUBSTANCE: invention relates to communication engineering and can be used in optical communication systems. The method comprises steps of: detecting an ONU identity code in an open uplink empty window or an empty timeslot and determining that an ONU corresponding to the ONU identity code is a rogue ONU according to the ONU identity code.
EFFECT: faster and more reliable information transmission.
11 cl, 5 dwg
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