Telecommunication network having time orthogonal wideband...

H - Electricity – 04 – B

Patent

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H04B 7/204 (2006.01) H04B 7/26 (2006.01) H04Q 7/22 (2006.01)

Patent

CA 2246432

A telecommunications network including a CDMA system and FDMA/TDMA system, both operating in a common frequency range, is disclosed. In an embodiment of the invention, the transmission and reception of narrowband FDMA/TDMA signals on a plurality of radio frequency channels within FDMA/TDMA system is synchronized such that at least one time slot (300) of each TDMA frame (310) on each radio channel is reserved. The transmission and reception of CDMA signals in the CDMA system is then performed during the reserved time slots of each TDMA frame. In an alternative embodiment, complete TDMA frames (310) on each radio channel are reserved for CDMA transmission and reception.

Réseau de télécommunications comprenant un système CDMA et un système FDMA/TDMA, l'un et l'autre fonctionnant sur une plage de fréquences commune. Selon l'un des modes de réalisation, l'émission et la réception des signaux FDMA/TDMA en bande étroite sur plusieurs canaux en radiofréquences compris dans le système FDMA/TDMA sont synchronisées de sorte qu'au moins une tranche de temps (300) de chaque trame TDMA (310) de chaque canal radio soit réservée. L'émission et la réception des signaux CDMA dans le système CDMA s'effectue alors pendant les tranches de temps réservées de chaque trame TDMA. Selon un autre mode de réalisation, les trames TDMA complètes (310) de chaque canal radio sont réservées à l'émission et à la réception en CDMA.

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