H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 13/02 (2006.01) H04J 11/00 (2006.01) H04L 1/00 (2006.01) H04L 1/08 (2006.01) H04L 12/56 (2006.01) H04L 29/06 (2006.01) H04L 29/08 (2006.01)
Patent
CA 2430560
In a communication system wherein packetized data is transmitted to remote stations in a channel sensitive manner, a preamble must be transmitted with each discrete data transmission to the remote station. Method and apparatus are presented herein for generating an optimized preamble structure for use with transmissions of packetized data. An optimized preamble structure is one that is easily detectable and decodable, yet occupies a small fractional overhead of the entire transmission to the remote station. Information that needs to be carried bz a preamble are used to create a basic structural unit, which is then redundantly permuted.
Dans un système de télécommunications où les données en paquet sont transmises à des stations éloignées d'une manière sensible à l'état du canal, on doit transmettre à la station éloignée un préambule pour chaque transmission discrète de données. A cet effet, on utilise des procédés et appareils de création d'une structure optimale de préambule servant à la transmission de données en paquets, une structure optimale étant facilement détectable et décodable, tout en occupant une petite partie de l'en-tête de la transmission totale à la station distante. Les informations devant figurer dans le préambule servent à créer une unité structurelle de base qui est en suite permutée plusieurs fois.
Holtzman Jack M.
Odenwalder Joseph P.
Sarkar Sandip
Holtzman Jack M.
Odenwalder Joseph P.
Qualcomm Incorporated
Sarkar Sandip
LandOfFree
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