Invention Grant
- Patent Title: Radio base station apparatus, mobile station apparatus and radio communication method
- Patent Title (中): 无线基站装置，移动台装置及无线通信方法
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Application No.: US13256232Application Date: 2010-03-16
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Publication No.: US09281926B2Publication Date: 2016-03-08
- Inventor: Yoshihisa Kishiyama , Hidekazu Taoka , Mamoru Sawahashi
- Applicant: Yoshihisa Kishiyama , Hidekazu Taoka , Mamoru Sawahashi
- Applicant Address: JP Tokyo
- Assignee: NTT DOCOMO, INC.
- Current Assignee: NTT DOCOMO, INC.
- Current Assignee Address: JP Tokyo
- Agency: Osha Liang LLP
- Priority: JP2009-063594 20090316
- International Application: PCT/JP2010/054397 WO 20100316
- International Announcement: WO2010/107013 WO 20100923
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04L5/00 ; H04L1/00 ; H04L25/02
Abstract:
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.
Public/Granted literature
- US20120106501A1 RADIO BASE STATION APPARATUS, MOBILE STATION APPARATUS AND RADIO COMMUNICATION METHOD Public/Granted day:2012-05-03
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