Patent ID: 8270543
Filing Date: 2012-09-18
Classification: H04L

Abstract:
1. A method for communication, comprising: receiving in a receiver a communication signal conveying multiple encoded bits of an Error Correction Code (ECC), wherein the communication signal comprises a given multi-bit symbol comprising a given encoded bit at a given position within the given multi-bit symbol; computing by the receiver respective N-bit soft decoding metrics with respect to the bits of the ECC; computing by the receiver a scaling factor that is based on at least one characteristic of the N-bit soft decoding metrics and on at least one property of the received communication signal; scaling the N-bit soft decoding metrics in the receiver by the scaling factor, including scaling a respective metric of the given encoded bit depending on the given position of the given encoded bit within the given multi-bit symbol; quantizing the scaled N-bit soft decoding metrics by the receiver to produce respective K-bit metrics, K<N; and decoding the ECC in the receiver using the scaled and quantized soft decoding metrics.