METHOD AND APPARATUS FOR RECEIVING DATA
First Claim
1. A method for receiving signals, comprising the steps of:
- receiving a signal containing modulation symbols;
de-mapping the modulation symbols into a first set of bits from a first region of a symbol constellation map to produce a first substream and a second set of bits from a second region of the symbol constellation map to produce a second substream;
decoding the first substream and the second substream using a low density parity check decoding process; and
combining the first decoded substream and the second decoded substream into a single data stream.
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Abstract
Modem coding and modulation techniques have greatly improved the transmission and reception of signals. A method is described including receiving a signal de-mapping the signal into a first and second substream, decoding the first and second substream using a low density parity check decoding process, and combining the first and second decoded substream into a single data stream. An apparatus is described including a symbol de-mapper that receives a signal de-maps the modulation symbols in the signal into a first and second substream, a first decoder that decodes the first substream using a low density parity check coding process at a first decoding rate, a second decoder that decodes the second substream at a second encoding rate, and a combiner that combines the first substream and the second substream into a single data stream.
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Citations
15 Claims
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1. A method for receiving signals, comprising the steps of:
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receiving a signal containing modulation symbols; de-mapping the modulation symbols into a first set of bits from a first region of a symbol constellation map to produce a first substream and a second set of bits from a second region of the symbol constellation map to produce a second substream; decoding the first substream and the second substream using a low density parity check decoding process; and combining the first decoded substream and the second decoded substream into a single data stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. (canceled)
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10. An apparatus for receiving signals comprising:
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a symbol de-mapper that receives a signal containing modulation symbols and de-maps the modulation symbols into a first substream containing a first set of bits and a second substream containing a second set of bits; a first decoder, coupled to the de-mapper, that decodes the first substream using a low density parity check coding process at a first decoding rate; a second decoder, coupled to the de-mapper, that decodes the second substream using a low density parity check coding process at a second encoding rate; and a combiner, coupled to the first decoder and the second decoder, that combines the first decoded substream and the second decoded substream into a single data stream. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification