Patent ID: 6230125
Filing Date: 2001-05-08
Classification: G10L,H04L

Abstract:
A method for processing speech coding parameters in a receiver of a telecommunication system, said method comprising:receiving a coded speech signal via a transmission channel, said coded speech signal including a plurality of speech frames having speech coding parameters;channel decoding the speech the signal, erroneous ones of the speech frames being detected and indicated in said channel decoding;processing the speech coding parameters of the erroneous ones of the speech frames based on at least one previous speech frame;dividing the speech coding parameters of a speech frame into groups of at least one speech coding parameter, said groups forming a plurality of logical virtual transmission channels;determining a quality of each of said virtual transmission channels during a predetermined monitoring period which is longer than a duration of a speech frame;controlling processing of error-free and erroneous speech coding parameters independently on each of the virtual transmission channels according to said determined quality of a respective virtual transmission channel; andperforming speech decoding on the speech frames.