Symbol reliability determination and symbol pre-selection based on reliability criteria,申请号US20030368017-传众专利搜索

Symbol reliability determination and symbol pre-selection based on reliability criteria

申请公布号：US7231005(B2)

申请号：US20030368017

申请日期：2003.02.14

申请公布日期：2007.06.12

申请人：

CONEXANT SYSTEMS, INC.

发明人：EIDSON DONALD BRIAN;MURALI RAMASWAMY;KRIEGER ABRAHAM;BERGGREN MAGNUS H.

分类号：H03D1/00;H04L1/00;H04L25/02;H04L25/03;H04L25/06;H04L27/06

主分类号：H03D1/00

摘要：A method and apparatus for processing demodulated data comprising received symbol data is disclosed. A decoder is used to compute estimated symbols and corresponding reliability metrics. The reliability metrics are transformed into reliability weights. Optionally, residuals relating to the difference between the received symbol data and the estimated symbols are computed. Output data are generated comprising any combination of the following: estimated symbols, reliability weights, residuals, and received symbol data. The residuals may be weighted by the reliability metrics and used by demodulation or error compensation loops to instantaneously reduce or increase the bandwidth of these loops.