Mobile communications using wideband terminals allowing...

Details Mobile communications using wideband terminals allowing... Mobile communications using wideband terminals allowing...

H - Electricity

04

W

H04W 28/00 (2009.01) H04W 28/22 (2009.01) H04W 72/00 (2009.01) H03M 13/00 (2006.01)

Patent

CA 2440816

A call setup procedure is presented to permit vocoder bypass, which will allow the transmission of wideband speech packets between wideband terminals over narrowband transmission constraints. In addition, methods and apparatus are presented that allow the conversion between a wideband tandem-free operation, a narrowband tandem-free operation, and a standard tandem operation.

L'invention porte sur une procédure d'établissement d'appels permettant de contourner le vocodeur et de transmettre des paquets de paroles à large bande entre des terminaux à large bande sur des liaisons à contrainte de bande étroite. Elle porte en outre sur des procédés et appareils permettant des conversations entre une opération sans tandem à large bande, une opération sans tandem à bande étroite, et une opération normale en tandem.

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