Re-formatting variable-rate vocoder frames for inter-system...

Details Re-formatting variable-rate vocoder frames for inter-system... Re-formatting variable-rate vocoder frames for inter-system...

H - Electricity

04

J

H04J 3/16 (2006.01) H04L 1/00 (2006.01) H04L 1/08 (2006.01) H04Q 7/30 (2006.01)

Patent

CA 2501890

Methods and apparatus are presented for supporting the transmission of variable-rate vocoder frames over non-compatible communication channels. Variable-rate vocoder frames are re-formatted as cargo in multi-rate vocoder frames. At the receiver, a determination is made as to whether a received multi-rate vocoder frame carries a variable-rate vocoder frame cargo. If a variable-rate vocoder frame is cargo, then a determination of the frame type is made. Various embodiments for conveying cargo information are presented.

L'invention concerne des dispositifs et des procédés pour la transmission de trames de vocodeur à débit variable sur des canaux de communication non compatibles. On reformate les trames comme charge dans des trames de vocodeur à débit multiple. Au niveau du récepteur, on détermine ensuite si une trame de vocodeur à débit multiple reçue transporte une charge de trame de vocodeur à débit variable. S'il existe une trame de débit variable sous forme de charge, on détermine alors un type de trame. Différentes variantes de transport d'information de charge sont présentées.

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