METHOD AND DEVICE FOR EFFICIENT IN-BAND DIM-AND-BURST SIGNALING AND HALF-RATE MAX OPERATION IN VARIABLE BIT-RATE WIDEBAND SPEECH CODING FOR CDMA WIRELESS SYSTEMS

摘要

IN THE METHOD AND DEVICE FOR INTEROPERATING A FIRST STATION USING A FIRST COMMUNICATION SCHEME AND COMPRISING A FIRST CODER (602) AND A FIRST DECODER (609) WITH A SECOND STATION USING A SECOND COMMUNICATION SCHEME AND COMPRISING A SECOND CODER (610) AND A SECOND DECODER (605), COMMUNICATION BETWEEN THE FIRST AND SECOND STATIONS IS CONDUCTED BY TRANSMITTING SIGNAL-CODING PARAMETERS RELATED TO A SOUND SIGNAL FROM THE CODER OF ONE OF THE FIRST AND SECOND STATIONS TO THE DECODER OF THE OTHER STATION. THE SOUND SIGNAL IS CLASSIFIED TO DETERMINE WHETHER THE SIGNAL-CODING PARAMETERS SHOULD BE TRANSMITTED FROM THE CODER OF ONE STATION TO THE DECODER OF THE OTHER STATION USING A FIRST COMMUNICATION MODE IN WHICH FULL BIT RATE IS USED FOR TRANSMISSION OF THE SIGNAL-CODING PARAMETERS. WHEN CLASSIFICATION OF THE SOUND SIGNAL DETERMINES THAT THE SIGNAL-CODING PARAMETERS SHOULD BE TRANSMITTED USING THE FIRST COMMUNICATION MODE AND WHEN A REQUEST TO TRANSMIT THE SIGNAL-CODING PARAMETERS FROM THE CODER OF ONE STATION TO THE DECODER OF THE OTHER STATION USING A SECOND COMMUNICATION MODE DESIGNED TO REDUCE BIT RATE DURING TRANSMISSION OF THE SIGNAL-CODING PARAMETERS IS RECEIVED, A PORTION OF THE SIGNAL-CODING PARAMETERS FROM THE CODER ONE STATION IS DROPPED AND THE REMAINING SIGNAL-CODING PARAMETERS ARE TRANSMITTING TO THE DECODER OF THE OTHER STATION USING THE SECOND COMMUNICATION MODE. THE DROPPED PORTION OF THE SIGNAL-CODING PARAMETERS ARE REGENERATED (810) BEFORE THE DECODER OF THE OTHER STATION DECODES THE SIGNAL-CODING PARAMETERS.