Broadband network for coaxial cable using multi-carrier modulation

  • US 8,411,565 B2
  • Filed: 04/20/2011
  • Issued: 04/02/2013
  • Est. Priority Date: 08/30/2001
  • Status: Active Grant
First Claim
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1. A network device comprising:

  • a) a multi-carrier modulator for forming a probe message comprising a preamble, a channel estimation training sequence, and a bit loading training sequence wherein the probe message is formed using orthogonal frequency division multiplexing (OFDM); and

    b) a transmitter for transmitting the probe message through the communication channel during an assigned slot in a framing structure that contains multiple slots over coaxial cable.

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