Providing antenna diversity in a wireless communication system

H - Electricity – 04 – B

Patent

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H04B 7/06 (2006.01) H04L 1/06 (2006.01) H04L 25/02 (2006.01)

Patent

CA 2667813

Systems and methodologies are described that facilitate cycling across antennas for channel quality information (CQI) computation and data transmission in a multiple-input multiple-output (MIMO) wireless communication environment. Pilots can be obtained by a wireless terminal. Further, virtual antennas that can be supported by a channel can be identified based upon an analysis of the pilots. Moreover, CQI computations can be effectuated for each of the supported virtual antennas; thereafter, the CQI data can be sent to a base station for data transmission scheduling. Additionally, the base station can schedule transmission based upon the CQI data and/or fairness considerations. When scheduled, data transmission can occur by cycling across the supported virtual antennas.

L'invention concerne des systèmes et des méthodologies qui facilitent le cyclage dans des antennes pour le calcul d'informations de qualité canal (CQI) et la transmission de données dans un milieu de communications sans fil à entrée multiple et sortie multiple (MIMO). Des pilotes peuvent être obtenus par un terminal sans fil. De plus, des antennes virtuelles pouvant être supportées par un canal peuvent être identifiées à partir d'une analyse des pilotes, de plus, les calculs CQI peuvent être effectués pour chaque antenne virtuelle supportée. Ensuite, les données CQI peuvent être envoyées à une station de base pour la programmation de la transmission des données. En outre, la station de base peut programmer les transmissions en fonction des données CQI et/ou de considérations d'équité. Une fois programmée, la transmission de données peut se faire par cyclage sur les antennes virtuelles supportées.

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