Invention Grant
- Patent Title: Wireless device and communication control program
- Patent Title (中): 无线设备和通信控制程序
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Application No.: US13492390Application Date: 2012-06-08
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Publication No.: US08687730B2Publication Date: 2014-04-01
- Inventor: Daisuke Ogawa , Takashi Dateki
- Applicant: Daisuke Ogawa , Takashi Dateki
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Fujitsu Patent Center
- Priority: JP2011-178630 20110817
- Main IPC: H04B7/02
- IPC: H04B7/02

Abstract:
A wireless device includes a channel covariance matrix calculating unit that calculates a covariance matrix based on a channel matrix estimated based on radio signal transmitted from a transmitting station. The wireless device further includes a first metric calculating unit that calculates a first metric based on the calculated covariance matrix. The wireless device further includes a W1 determining unit that calculates a first precoding matrix common to a plurality of bands based on the calculated first metric. The wireless device further includes second metric calculating units that calculate a second metric using the calculated first precoding matrix. The wireless device further includes an optimal CQI/PMI/RI determining unit that calculates a second precoding matrix of each band based on the calculated second metric.
Public/Granted literature
- US20130044800A1 WIRELESS DEVICE AND COMMUNICATION CONTROL PROGRAM Public/Granted day:2013-02-21
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