IP Library › Patent Application 11834341
Patent Application
App. No. 11/834,341

Frequency Domain Direct Sequence Spread Spectrum with Flexible Time Frequency Code

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Quick Facts
Patent No.
US None
App. No.
11/834,341
Abstract

A spread spectrum radio frequency communication system includes a Forward Error Correction (FEC) algorithm to encode digital data to provide a plurality of symbol groups, the FEC algorithm using a Reed Solomon FEC code, an interleaving algorithm to map each one of the plurality of symbol groups into a corresponding one of a plurality of coherent subbands, and a Walsh encoder to encode each one of the plurality of symbol groups.

Claims (9)

1 - 15 . (canceled)

16 . A method comprising:

providing a wireless transmission waveform comprised of a plurality of channels;

dividing the waveform into a plurality of coherent subbands, wherein each subband contains a subset of channels from the plurality of channels;

communicating a data stream through the waveform, wherein the communication comprises:

segmenting the data stream into a plurality of segments;

communicating a first segment from the plurality of segments through a first subband of the plurality of subbands;

communicating a second segment from the plurality of segments through a second subband of the plurality of subbands; and

providing an assembly indication with each data segment of the plurality of segments such that the plurality of segments can be properly reassembled once transmitted through different subbands.