Method and apparatus for iterative decoding
AssigneeBroadcom Corporation
InventorsBa-Zhong Shen, Kelly B. Cameron, Steven T. Jaffe
Life of this patent
Estimating the term…
Abstract
Method and apparatus for determining the stopping point of an iterative decoding process. In one embodiment the estimated values of an iteration of an iterative decoder are provided to a signature circuit. If the signature does not differ from the previous signature developed from a prior iteration, or the signature developed from an iteration prior to the previous iteration, the decoding stops. The variance may also be tested and compared to a threshold as a criteria to stop the iterative decoding.
Claims24
A method for iteratively decoding a received signal, the method comprising:
- iteratively decoding the received signal;
- creating a signature from values of an Nth decoding iteration;
- comparing the signature of the Nth iteration to a signature of an (N-1)th iteration;
- and
- stopping the process of iterative decoding if the signature of the (N-1)th iteration is equal to the signature of the Nth iteration.
A method for iteratively decoding a received signal, the method comprising:
- iteratively decoding the received signal;
- creating a signature from values of an Nth decoding iteration;
- comparing the signature of the Nth iteration to a signature of an (N-2)th iteration;
- and
- stopping the process of iterative decoding if the signature of the (N-2)th iteration is equal to the signature of the Nth iteration.
An iterative decoder comprising:
- means for iteratively decoding a received signal;
- means for generating a signature from values of an Nth decoding iteration;
- means for comparing the signature of the Nth iteration to a signature of an (N-1)th iteration;
- and
- means for stopping the process of iterative decoding if the signature of the (N-1)th iteration is equal to the signature of the Nth iteration.
Dependencies are inferred from the claim text.