H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/38 (2006.01) H04B 14/04 (2006.01) H04J 3/12 (2006.01) H04L 23/00 (2006.01) H04L 23/02 (2006.01) H04L 25/49 (2006.01) H04L 27/04 (2006.01) H04L 27/10 (2006.01) H04L 27/20 (2006.01) H04L 27/36 (2006.01)
Patent
CA 2360774
Methods are provided for generating at least one translation table for a modem having a frame having a plurality of slots. DIL sequence information from another is used to generate ordered table of levels (15), and distances (20) between adjacent levels of the ordered table (15) found for each slot. The distances (20) are used to distinguish between slots subject to robbed bit signaling (RBS) and slots not subject to RBS (25), and the ordered tables (15) are used to make a determination as to whether the DIL sequence information is A-law or µ-law information. Scaling factors are generated from the A- law/µ-law determination as well as from a PAD estimation, and the scaling factors (80) are utilized in generating translation tables (100a, 100b). A PAD estimation function is utilized in finding the PAD estimation.
Cette invention concerne un procédé permettant de créer au moins une table de traduction pour un modem dont la trame comporte une pluralité de tranches de temps. On utilise une information à séquence de DIL provenant d'un autre modem pour créer une table ordonnée de niveaux (15) et de distances (20) entre les niveaux adjacents de la table (15) pour chaque tranche de temps. Les distances (20) permettent de distinguer les tranches de temps soumises à une signalisation par réassignation de bits des tranches (25) ce celles qui ne le sont pas. Les tables ordonnées (15) servent à déterminer si l'information à séquence DIL est du type Loi A ou Loi µ. A partir du type de loi déterminé (A ou µ) ainsi que d'une estimation ADP (obtenue au moyen d'une fonction spéciale), on génère des facteurs de proportionnalité (80) qui servent à créer des tables de translation (100a, 100b).
Drucker Vitaly
Goldstein Yuri
Okunev Yuri
Wang Qin
Pctel Inc.
Silicon Laboratories Inc.
Smart & Biggar
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