Trellis interleaver and feedback precoder
AssigneeParadyne Corporation
InventorWilliam L. Betts
Life of this patent
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Abstract
Systems and methods are provided for a trellis interleaver and feedback precoder. One such method includes: producing a series of precoder symbols; interleaving the precoder symbols; producing a trellis state output from the interleaved symbols; and generating a redundant bit based upon the trellis state output. One such system includes: a precoder state element configured to monitor a precoder state and to develop a series of precoder symbols; an interleaver configured to receive and interleave the precoder symbols; a trellis state element configured to receive the interleaved symbols and to develop a trellis state output; and a trellis encoder configured to receive the trellis state output and to generate at least one redundant bit.
Claims27
A system for interleaving trellis codes, comprising:
- a precoder state element configured to monitor a precoder state and to develop a series of precoder symbols;
- an interleaver configured to receive and interleave the precoder symbols;
- a trellis state element configured to receive the interleaved symbols and to develop a trellis state output;
- and
- a trellis encoder configured to receive the trellis state output and to generate at least one redundant bit.
A method for interleaving trellis codes, comprising the steps of:
- producing a series of precoder symbols;
- interleaving the precoder symbols;
- producing a trellis state output from the interleaved symbols;
- and
- generating a redundant bit based upon the trellis state output.
A system for interleaving trellis codes, comprising:
- means for producing a series of precoder symbols;
- means for interleaving the precoder symbols;
- means for producing a trellis state output from the interleaved symbols;
- and
- means for generating a redundant bit based upon the trellis state output.
A system for interleaving trellis codes, comprising:
- a precoder configured to receive a first constellation and to produce a precoder state associated with the first constellation;
- a precoder state element configured to receive the precoder state and to produce a trellis symbol associated with a trellis state;
- an interleaver configured to receive a first sequence of the trellis symbols and to produce a second sequence of the trellis symbols;
- a trellis state element configured to receive the interleaved trellis symbols and to produce a trellis state for each of the interleaved symbols, where the trellis state is associated with the first constellation;
- and
- a trellis encoder configured to receive the trellis state and to produce a redundant bit based on the trellis state.
A method for interleaving trellis codes in a data communications system comprising the steps of:
- generating a trellis symbol representing a trellis state of a first signal constellation;
- interleaving a plurality of the trellis symbols;
- determining the trellis state associated with each of the trellis symbols;
- and
- trellis encoding based on the trellis state to produce a redundant bit.
Dependencies are inferred from the claim text.