Radio base station apparatus, mobile station apparatus and...

H - Electricity – 04 – J

Patent

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Details

H04J 99/00 (2009.01) H04W 16/28 (2009.01) H04J 1/00 (2006.01) H04J 11/00 (2006.01)

Patent

CA 2755380

To provide a radio base station apparatus and radio communication method capable of performing radio communications using downlink reference signal structures suitable for antenna virtualization, a radio base station apparatus (200) has a plurality of transmission antennas, generates CRSs used in demodulation of at least downlink control information, CQI-RSs generated for each of the transmission antennas used in measurement of channel quality, and DM-RSs generated for each stream used in demodulation of downlink transmission data, and multiplexes the CRSs, CQI-RSs and DM-RSs into a same transmission time unit to transmit from each of the antennas.

La présente invention concerne un appareil de station de base radio et un procédé de communication sans fil permettant d'utiliser un agencement de signal de référence de liaison descendante approprié pour la conversion à des antennes virtuelles pour effectuer des communications sans fil. Un appareil de station de base radio (200) produit une pluralité d'antennes d'émission, un CRS à utiliser pour la démodulation d'informations de commande de liaison descendante au moins, un CQI-RS à utiliser pour déterminer une qualité de canal pour chacune des antennes d'émission, et un DM-RS à utiliser pour la démodulation des données émises sur la liaison descendante pour chaque flux d'une pluralité de flux, et il multiplexe ensuite les CRS, CQI-RS et DM-RS dans la même unité de temps d'émission en vue la transmission par les antennes.

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