Invention Grant
- Patent Title: Wireless transmission device and wireless reception device
- Patent Title (中): 无线传输设备和无线接收设备
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Application No.: US14239088Application Date: 2012-08-13
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Publication No.: US09281880B2Publication Date: 2016-03-08
- Inventor: Alvaro Ruiz Delgado , Takashi Onodera , Hiromichi Tomeba , Hiroshi Nakano , Minoru Kubota
- Applicant: Alvaro Ruiz Delgado , Takashi Onodera , Hiromichi Tomeba , Hiroshi Nakano , Minoru Kubota
- Applicant Address: JP Osaka
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Osaka
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2011-177718 20110815; JP2011-203597 20110916
- International Application: PCT/JP2012/070619 WO 20120813
- International Announcement: WO2013/024838 WO 20130221
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04B7/04 ; H04B7/06 ; H04L25/03

Abstract:
A wireless reception device is notified of whether a multi-user MIMO signal transmitted from a wireless transmission device has undergone linear precoding or non-linear precoding without increasing the amount of control information. A wireless transmission device having a plurality of transmit antennas 303, for transmitting spatially multiplexed signals to a plurality of wireless reception devices includes a group construction unit 307 configured to classify the wireless reception devices into a plurality of groups and to determine a precoding scheme for each of the groups, a selection unit 315 configured to select one group from among the groups, and a precoding unit 323 configured to precode transmit data addressed to each of wireless reception devices belonging to the selected group, using a precoding scheme determined for the selected group.
Public/Granted literature
- US20140204841A1 WIRELESS TRANSMISSION DEVICE AND WIRELESS RECEPTION DEVICE Public/Granted day:2014-07-24
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