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Optical line terminal, passive optical network and radio frequency signal transmission method

  • US 20100142955A1
  • Filed: 02/17/2010
  • Published: 06/10/2010
  • Est. Priority Date: 09/26/2007
  • Status: Abandoned Application
First Claim
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1. An optical line terminal, comprising:

  • at least one transmitting unit, configured to provide an optical network unit (ONU) with one downstream optical carrier and two upstream optical carriers dedicated for the ONU, to modulate a downstream radio frequency signal to the ONU on the downstream optical carrier dedicated for the ONU, to combine the modulated downstream optical carrier with the two upstream optical carriers dedicated for the ONU, and to output a downstream optical signal;

    wherein the two upstream optical carriers dedicated for the ONU are configured to carry upstream radio frequency signals of the ONU;

    a multiplexing/demultiplexing unit, configured to multiplex through wavelength division downstream optical signals outputted from each of the at least one transmitting unit and to transmit the multiplexed downstream optical signals to an ONU via an optical distribution network (ODN); and

    to demultiplex through wavelength division the multiplexed upstream optical wave of each ONU transmitted by an ODN, and output the demultiplexed upstream optical signals; and

    at least one receiving unit, configured to obtain an upstream signal from the demultiplexed upstream optical signals.

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