A wireless internet access method and system

H - Electricity – 04 – J

Patent

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Details

H04J 3/16 (2006.01) H04B 7/02 (2006.01) H04B 7/08 (2006.01) H04L 27/26 (2006.01) H04M 7/00 (2006.01) H04Q 7/32 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2328865

A wireless Internet access system (100) and method supports the transmission and reception of multiple types of traffic between mobile subscriber units (105, 106) and existing networks (120). A frame structure is used that can support the transmission of multiple types of traffic and adapt to changes in the traffic types needed and the amount of data for a particular traffic type. In addition, data transmission is performed using orthogonal frequency division multiplexing and differential phase shift keying to avoid inter- symbol interference. Receiving units in the mobile subscriber units (105, 106) and existing networks (120) include antenna arrays to provide a multipath transmission.

Selon cette invention, un système (100) et un procédé d'accès sans fil à Internet prennent en charge l'émission et la réception de plusieurs types de trafic entre les unités (105, 106) d'abonnés mobiles et les réseaux (120) existants. On utilise une structure cadre capable de prendre en charge différents types de trafic et de s'adapter aux changements relatifs aux types de trafic désiré ainsi qu'à la quantité de données nécessaire à chaque type de trafic déterminé. En outre, la transmission de données se fait au moyen du multiplexage par la répartition orthogonale en fréquence et de la modulation par déplacement de phase différentiel, et ce pour éviter l'interférence longitudinale. Les unités de réception faisant partie des unités (105, 106) d'abonnés mobiles et des réseaux (120) existants comprennent des réseaux d'antennes assurant l'émission multivoies.

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