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Converged PON for TDMA-PON service based on OFDMA-PON

  • US 9,219,567 B2
  • Filed: 12/28/2012
  • Issued: 12/22/2015
  • Est. Priority Date: 12/30/2011
  • Status: Active Grant
First Claim
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1. An optical line terminal (OLT) of a converged passive optical network (CPON) that is a combination of a time division multiple access-passive optical network (TDMA-PON) and an orthogonal frequency division multiple access-passive optical network (OFDMA-PON), the OLT comprising:

  • an OLT interface unit to be matched with an OLT of the TDMA-PON corresponding to each of a plurality of services of the TDMA-PON;

    a subcarrier queue transmission unit to process a subcarrier queue corresponding to each of the plurality of services;

    an OFDM frame processing unit to process an OFDM frame corresponding to each of the plurality of services; and

    an OFDM modem to transmit and receive the OFDM frame,wherein the OFDM frame processing unit comprises;

    a first frame conversion unit to convert an OFDM downstream frame transmitted through a subcarrier into a data frame associated with a service of the TDMA-PON; and

    a second frame conversion unit to convert a data frame associated with a service of the TDMA-PON into an OFDM frame for upstream transmission.

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