Invention Grant
- Patent Title: Mobile terminal apparatus, radio base station apparatus and communication control method
- Patent Title (中): 移动终端装置，无线基站装置及通信控制方法
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Application No.: US13378679Application Date: 2010-06-23
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Publication No.: US09048912B2Publication Date: 2015-06-02
- Inventor: Yoshihisa Kishiyama , Teruo Kawamura , Motohiro Tanno
- Applicant: Yoshihisa Kishiyama , Teruo Kawamura , Motohiro Tanno
- Applicant Address: JP Tokyo
- Assignee: NTT DOCOMO, INC.
- Current Assignee: NTT DOCOMO, INC.
- Current Assignee Address: JP Tokyo
- Agency: Osha Liang LLP
- Priority: JP2009-149000 20090623; JP2010-001127 20100106; JP2010-086034 20100402
- International Application: PCT/JP2010/060620 WO 20100623
- International Announcement: WO2010/150806 WO 20101229
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04B7/06 ; H04J11/00 ; H04J13/00 ; H04L5/00 ; H04L27/26 ; H04L25/03
Abstract:
Provided are a mobile terminal apparatus, a radio base station apparatus and a communication method, capable of orthogonalizing uplink reference signals between plural antennas in MIMO transmission. The mobile terminal apparatus has a reference signal generator (11) for generating DM-RSs using ZC sequences and a cyclic shift section (13) for cyclically shifting the DM-RSs by unit of plural antenna ports (19) to orthogonalize the DM-RSs for the antenna ports (19) between the antenna ports (19), and the cyclically shifted DM-RSs are transmitted via the respective antenna ports (19) to a radio base station apparatus eNB in an uplink.
Public/Granted literature
- US20120163318A1 MOBILE TERMINAL APPARATUS, RADIO BASE STATION APPARATUS AND COMMUNICATION CONTROL METHOD Public/Granted day:2012-06-28
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