A DATA TRANSMITTING METHOD AND DEVICE OVER PASSIVE OPTICAL NETWORK PON DATA LINK LAYER

摘要

A data transmitting method over passive optical network PON data link layer, mainly comprises: in the uplink transmission, the whole transmission cycle being divided into multiple time slots, each optical network unit ONU using one or more slots to transmit data, and each slot including one preamble and at least one frame delimited by label. The said method has the advantage of occupying less effective band width, delimiting frame precisely, simplifying encapsulation, enhancing the IP packet encapsulation efficiency and supporting label forwarding directly.