Methods and systems of performing system channel planning...

H - Electricity – 04 – Q

Patent

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H04Q 7/30 (2006.01) H04Q 7/36 (2006.01) H04Q 7/38 (2006.01) H04Q 7/20 (2006.01)

Patent

CA 2310683

Methods and systems of communication reduce the internal interference associated with conducting radio communication in a wireless local loop communication system down to acceptable levels. Problems associated with internal interference are solved by providing carrier frequency rotation during timeslots in a frame. A plurality of radio fixed parts are utilized for conducting radio communication with user terminals. During operation, each of a plurality of sequentially related carrier frequencies is assigned in sequential order to a respective one of the plurality of radio fixed parts. Each of the plurality of carrier frequencies is advanced during each successive time slot during operation of the wireless system. In addition, the control system controls operation of the radio fixed parts by allowing and disallowing transmission and reception in certain predetermined time slots.

La présente invention concerne des procédés et des systèmes de communication permettant de réduire à un niveau acceptable les interférences internes associées à l'établissement d'une liaison radio dans un système de communication à boucle de raccordement radio. L'invention résout les problèmes liés aux interférences internes en effectuant une rotation des fréquences porteuses durant les créneaux temporels d'une trame. Plusieurs équipements radio fixes sont utilisés pour établir la liaison radio avec des terminaux utilisateur. Pendant le fonctionnement du système radio, plusieurs fréquences porteuses successives sont attribuées, une à la fois et par ordre séquentiel, à l'un des équipements radio fixes respectifs, et chaque fréquence porteuse est avancée au cours de chaque créneau temporel successif. En outre, le système de commande règle le fonctionnement des équipements radio fixes en permettant ou en interdisant l'émission et la réception au cours de certains créneaux temporels prédéterminés.

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