Method and apparatus for wireless communication employing...

H - Electricity – 04 – Q

Patent

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H04Q 7/22 (2006.01) H04B 7/04 (2006.01) H04Q 7/30 (2006.01) H04Q 7/36 (2006.01) H04B 7/02 (2006.01) H04H 1/00 (2006.01)

Patent

CA 2234623

A cellular communications system that includes forward channel communications to users and corresponding reverse channel communications from mobile users. The users travel from one area to another area over one or more zones. The forward channel communications are broadcast directly to users in a broadcaster zone. The reverse channel communications from users are not returned directly but are first collected at locations arrayed over the broadcaster zone. After collection, the reverse channel communications are forward to complete the full duplex communications. The forward channel communications are point to multipoint while the reverse channel communications are multipoint to point. The communication system separately handles the point to multipoint forward path as a direct broadcast and the multipoint to point reverse path using multiple collection points. Since the forward and reverse paths are separately configured, the present invention optimizes both the forward and reverse paths.

Système de communication cellulaire comprenant les communications de voie d'aller en direction des utilisateurs et les communications de voie de retour correspondant en provenance des utilisateurs mobiles. Les utilisateurs se déplacent d'une région à l'autre en traversant une ou plusieurs zones. Les communications de voie d'aller sont transmises directement aux utilisateurs dans une zone d'émetteur. Les communications de voie de retour en provenance des utilisateurs ne sont pas renvoyées directement mais sont rassemblement d'abord en des sites répartis dans l'ensemble de la zone d'émetteur, puis retransmises afin d'achever les communications en duplex. Les communications de voie d'aller sont du type point à multipoint tandis que les communications de voie de retour sont du type multipoint à point. Dans ce système de communication, le trajet d'aller point à multipoint s'effectue par transmission directe, et le trajet de retour multipoint à point passe par plusieurs points de rassemblement. Etant donné que les trajets d'aller et de retour ont des configurations indépendantes, ledit système optimise à la fois le trajet d'aller et le trajet de retour.

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