Space division multiple access radio communication system...

H - Electricity – 04 – J

Patent

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Details

H04J 15/00 (2006.01) H04Q 7/36 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2190234

In the preferred embodiment, a Space Division Multiple Access (SDMA) radio communication system (100) utilises a base station (101) having a plurality of antenna elements (103) used to transmit and receive to, multiple radio communication devices (107, 109) on a same frequency and time channel. A different set of beam forming weights is applied to communications for each radio communication device (107, 109) in such a way as to minimize the interference between the radio communication devices signals. A set of distance metrics is calculated utilizing the sets of weights for each pair of radio communication units sharing a channel. When any distant metric is less than a pre determined threshold value, one of the radio communication devices (107, 109) is reallocated to a new channel or a handover instruction is performed.

ans la version préférée, un système de radiocommunication à accès multiple par répartition dans l'espace (SDMA) (100) utilise une station de base (101) ayant un certain nombre d'éléments antennes (103) qui lui servent à communiquer avec de multiples dispositifs de radiocommunication (107, 109) sur la même voie fréquence/temps. Un ensemble différent de poids de formation de faisceaux est appliqué aux communications pour chaque dispositif de radiocommunication (107, 109) de façon à réduire au minimum le brouillage entre les signaux des dispositifs de radiocommunication. Un ensemble de paramètres de distance est calculé au moyen des ensembles de poids pour chaque paire d'unités de radiocommunication partageant une voie. Quand un paramètre de distance est inférieur à un seuil prédéterminé, un des dispositifs de radiocommunication (107, 109) est réaffecté à une nouvelle voie ou une instruction de transfert est exécutée.

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