Mitigation of wireless transmit/receive unit (wtru) to wtru...

Details Mitigation of wireless transmit/receive unit (wtru) to wtru... Mitigation of wireless transmit/receive unit (wtru) to wtru...

H - Electricity

04

M

H04M 1/00 (2006.01)

Patent

CA 2561713

Multiple antenna elements of a WTRU are used to form an adaptive antenna beam pattern for receiving signals in the downlink direction. The WTRU utilizes the formed antenna beam to form a transmission antenna beam for transmitting signals in the uplink direction. In an alternate embodiment, the multiple antenna elements are used to form a plurality of fixed, predetermined antenna beams. The WTRU then selects and switches to the one of the predetermined beams that yields the best downlink reception signals. The WTRU utilizes the selected beam pattern to transmit signals in the uplink direction. In an alternate embodiment, the WTRU receives spectral arrangement information and utilizing this information to avoid transmitting in the direction of spectrally adjacent WTRUs.

L'invention concerne des éléments d'antennes multiples d'une WTRU qui servent à former un modèle de faisceau d'antenne pour recevoir des signaux dans le sens liaison descendante. La WTRU utilise le faisceau d'antenne ainsi formé pour créer un faisceau d'antenne d'émission destiné à émettre des signaux dans le sens liaison montante. Dans un autre mode de réalisation, les éléments d'antennes multiples servent à former plusieurs faisceaux d'antennes prédéterminés fixes. La WTRU choisit et commute vers le faisceau prédéterminé qui produit les meilleurs signaux de réception en liaison descendante. La WTRU utilise le modèle de faisceau choisi pour émettre des signaux dans le sens liaison montante. Dans un autre mode de réalisation encore, la WTRU reçoit des informations d'arrangement spectral et les utilise pour éviter d'émettre dans le sens d'unités émettrices/réceptrices spectralement contiguës.

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