Patent ID: 6658064
Filing Date: 2003-12-02
Classification: H04L

Abstract:
A method for improving the detectability of a data frame transmitting background noise information including a silence descriptor identifier and background noise parameters, in a communication system in which the information to be transmitted is formed into data frames, said data frames are subjected to channel coding to form channel-coded frames, said channel-coded frames are interleaved to be transmitted in two or more data transmission frame, and information of two channel-coded frames is transmitted in each data transmission frame whereinfirst silence descriptor frame is formed provided with the silence descriptor identifier,said first silence descriptor frame is subjected to channel coding to form a channel-coded silence descriptor frame, said channel-coded silence descriptor frame is transmitted in two or more data transmission frames, and at least one data transmission frame transmitting part of said channel-coded silence descriptor frame is also used to transmit at least the background noise parameters.