Turbo decoding apparatus and method
AssigneeSamsung Electronics Co., Ltd.
InventorSook-Min Park
Life of this patent
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Abstract
A turbo decoding method and apparatus for performing iterative decoding on a received signal is provided. A decoder receives a signal and an (N−1)th decoding result, performs Nth decoding thereon, and outputs first extrinsic information. A transformer reduces a bit width of the first extrinsic information output from the decoder and outputs second extrinsic information. A memory stores the second extrinsic information output from the transformer. A de-transformer de-transforms the second extrinsic information stored in the memory, to third extrinsic information having a same bit width as that of the first extrinsic information, and inputs the third extrinsic information to the decoder.
Claims8
A turbo decoding apparatus for performing iterative decoding on a received signal, the apparatus comprising:
- a decoder for receiving a signal and an (N−1)th decoding result, performing Nth decoding on the received signal and the (N−1)th decoding result, and outputting first extrinsic information;
- a transformer for reducing a bit width of the first extrinsic information output from the decoder, and outputting second extrinsic information;
- a memory for storing the second extrinsic information output from the transformer;
- and
- a de-transformer for de-transforming the second extrinsic information stored in the memory, to third extrinsic information having a same bit width as the first extrinsic information, and inputting the third extrinsic information to the decoder.
A turbo decoding method for performing iterative decoding on a received signal, the method comprising:
- receiving a signal and an (N−1)th decoding result;
- performing Nth decoding on the received signal and the (N−1)th decoding result;
- generating first extrinsic information;
- transforming the first extrinsic information into second extrinsic information by reducing a bit width of the first extrinsic information;
- storing the second extrinsic information;
- and
- de-transforming the stored second extrinsic information into third extrinsic information having a same bit width as the first extrinsic information.
Dependencies are inferred from the claim text.