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Data transmission method of optical access network, and system and device thereof

  • US 8,488,966 B2
  • Filed: 06/04/2010
  • Issued: 07/16/2013
  • Est. Priority Date: 12/05/2007
  • Status: Active Grant
First Claim
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1. An optical access network (OAN) system, comprising:

  • a remote radio unit (RRU);

    an optical network device;

    an optical distribution network (ODN);

    an optical line terminal (OLT) device, wherein;

    the RRU is configured to receive a wireless service data, convert the wireless service data into a first frequency signal, and send the first frequency signal to the optical network device;

    the optical network device is configured to receive the first frequency signal from the RRU, convert the first frequency signal into a fiber transmission signal, and send the fiber transmission signal to the ODN;

    the ODN is configured to transmit the fiber transmission signal sent by the optical network device to the OLT device; and

    the OLT device is configured to receive the fiber transmission signal transmitted by the ODN, and convert the fiber transmission signal into a signal of another standard protocol which is sent to an IP edge node through a convergence network;

    wherein the optical network device comprises an optical network unit (ONU) and is specifically configured to;

    receive the first frequency signal from the RRU, adapt a rate of the wireless service data from the RRU to a GPON transmission rate, perform frame format conversion on the first frequency signal to obtain a first adaptation signal, and convert the first adaptation signal into the fiber transmission signal according to an optical transmission protocol.

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