Patent ID: 6622275
Filing Date: 2003-09-16
Classification: H04J,H04L,H04W

Abstract:
A method for communicating a noticed low activity communication signal in a telecommunications system, the telecommunication system including vocoders, the method comprising:replacing standard vocoder encoding/decoding parameters used by said vocoders with vocoder signatures, wherein sequenced bits contained within said vocoder signatures are spaced further apart than sequenced bits contained within standard vocoder parameters, said replacing comprising: communicating to a second vocoder that a low activity communication signal is being transmitted; encoding said low activity communication signal with said second vocoder, said second vocoder determining if a bit is a 0 or a 1, said encoding performed using channel coding redundancy within an information bit field of said original frame to improve said first vocoder's likelihood of decoding said original message, said encoding also noticing said first vocoder that a low activity signal is being transmitted; and transmitting said encoded low activity communication signal as an original frame containing original information represented by sequence bits to a first vocoder; receiving an erred frame at a target destination, said erred frame comprising bits, said bits sequenced substantially the same as said bit sequence of said frame; delivering said erred frame to a first vocoder at the target destination; and processing said erred frame with said first vocoder to obtain additional information used to identify said original information contained in said original frame.