Decoding device and method using context redundancy
AssigneeIntel IP Corporation
InventorsFlorian Eckardt, Zhibin Yu, Qing Xu
Life of this patent
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Abstract
The disclosure relates to a decoding device, comprising: a receiver configured to provide a sequence of information bits comprising context redundancy information, wherein the sequence of information bits is encoded based on a predefined channel code; a trellis generation logic configured to generate a plurality of trellis states based on the sequence of information bits and the channel code; a trellis reduction logic configured to reduce the plurality of trellis states by at least one trellis state based on the context redundancy information; and a decoder configured to decode the sequence of information bits by using a metric based on the reduced number of trellis states.
Claims22
A decoding device, comprising:
- a receiver configured to provide a sequence of information bits comprising context redundancy information, wherein the sequence of information bits is encoded based on a predefined channel code;
- a trellis generation logic configured to generate a plurality of trellis states based on the sequence of information bits and the channel code;
- a trellis reduction logic configured to reduce a number of the plurality of trellis states by at least one trellis state based on the context redundancy information, wherein the trellis reduction logic is configured to provide the reduced number of the plurality of trellis states during an online operation of the decoding device, wherein the trellis reduction logic is configured to provide the reduced number of the plurality of trellis states based on evaluating probabilities for different possible context redundancy information;
- and
- a decoder configured to decode the sequence of information bits by using a metric based on the reduced number of trellis states.
A decoding method, comprising:
- providing a sequence of information bits comprising context redundancy information, wherein the sequence of information bits is encoded based on a predefined channel code;
- generating a plurality of trellis states based on the sequence of information bits and the channel code;
- reducing a number of the plurality of trellis states by at least one trellis state based on the context redundancy information, wherein the reduced number of the plurality of trellis states are provided during an online operation of a decoding device, wherein the reduced number of the plurality of trellis states are provided based on evaluating probabilities for different possible context redundancy information;
- and
- decoding the sequence of information bits by using a metric based on the reduced number of trellis states.
A decoding method, comprising:
- providing a sequence of information bits comprising self-context redundancy information and cross-context redundancy information, wherein the sequence of information bits is encoded based on a predefined channel code;
- generating a plurality of trellis states based on the sequence of information bits and the channel code during offline processing;
- reducing the plurality of trellis states by at least one trellis state based on the self-context redundancy information and the cross-context redundancy information during the offline processing;
- and
- using the reduced plurality of trellis states for decoding a sequence of information bits during an online processing.
Dependencies are inferred from the claim text.