Spread-spectrum high data rate system and method

  • US 6,671,307 B2
  • Filed: 10/02/2001
  • Issued: 12/30/2003
  • Est. Priority Date: 11/04/1998
  • Status: Expired due to Term
First Claim
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1. A spread-spectrum transmitter for sending data over a communications channel, comprising:

  • a forward-error-correction (FEC) encoder for encoding, with an FEC code, the data as FEC data;

    an interleaver, coupled to said FEC encoder, for interleaving the FEC data as interleaved data;

    a memory, coupled to said interleaver, for storing N bits of interleaved data as stored data, with N a number of bits in a symbol;

    a chip-sequence encoder, coupled to said memory, for selecting, responsive to the N bits of stored data, a chip-sequence signal from 2N chip-sequence signals stored in said chip-sequence encoder, as an output chip-sequence signal of said chip-sequence encoder; and

    a transmitter section, coupled to said chip-sequence encoder, for transmitting the output chip-sequence signal as a radio wave, at a carrier frequency, over said communications channel, as a spread-spectrum signal.

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