Method and apparatus for using duality and also a system for...

H - Electricity – 04 – Q

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H04Q 7/22 (2006.01) H04B 1/16 (2006.01) H04B 7/04 (2006.01) H04J 3/00 (2006.01) H04Q 7/26 (2006.01) H04Q 7/38 (2006.01) H04Q 7/32 (2006.01)

Patent

CA 2259654

A system and method for operating a wireless telephone system, particularly a wireless Private Branch Exchange (Pbx), as both a voice system and a pager system. The system includes a protocol for communicating both voice conversations and display data to a remote unit. A digital communication system, in which is included a Time Domain Multiple Access system, operated with plural antenna to reduce the problems associated with fading, interference and multipath in signals received from mobile, wireless units. The protocol used between the fixed station and the mobile wireless units provides an opportunity for the fixed station to evaluate the signal received from the wireless unit and to transmit to the wireless unit using the antenna judged to have the best received signal.

Système et procédé permettant de faire fonctionner un système téléphonique sans fil, plus particulièrement un standard privé (PBX) sans fil en tant que système à fréquences vocales mais aussi en tant que système de recherche de personnes. Le système comprend un protocole qui lui sert à transmettre des conversations vocales et des données d'affichage à une unité éloignée. Un système de transmission numérique dans lequel est inclus un système à accès multiple par répartition dans le temps, fonctionne avec plusieurs antennes pour réduire les problèmes liés à l'évanouissement, aux interférences et aux trajets multiples dans les signaux reçus en provenance d'unités mobiles sans fil. Le protocole utilisé entre la station fixe et les unités mobiles sans fil donne à la station fixe l'opportunité d'évaluer le signal reçu en provenance de l'unité sans fil et de communiquer avec l'unité sans fil par l'antenne qui a été estimée la meilleure au niveau de la qualité du signal reçu.

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