- Patent Title: Wireless communication system, base station apparatus, mobile station apparatus, control method of wireless communication system, control program of base station apparatus, and control program of mobile station apparatus
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Application No.: US13504897Application Date: 2010-10-04
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Publication No.: US09699738B2Publication Date: 2017-07-04
- Inventor: Wataru Ouchi , Shoichi Suzuki , Yosuke Akimoto
- Applicant: Wataru Ouchi , Shoichi Suzuki , Yosuke Akimoto
- 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: JP2009-247899 20091028
- International Application: PCT/JP2010/067387 WO 20101004
- International Announcement: WO2011/052347 WO 20110505
- Main IPC: H04W52/04
- IPC: H04W52/04 ; H04W72/04 ; H04L5/00 ; H04W52/34 ; H04L27/26
Abstract:
A base station apparatus communicates with a mobile station apparatus transmitting a data signal and a reference signal for channel estimation. The base station includes: a simultaneous transmission setting part which sets simultaneous transmission control information indicating whether or not to enable simultaneous transmission of the data signal and the reference signal, a transmission section which transmits the set simultaneous transmission control information to the mobile station apparatus; and a radio resource control section which determines whether or not to enable simultaneous transmission of the data signal and the reference signal on the basis of a power headroom which is notified from the mobile station apparatus, the headroom being a difference between the maximum transmit power value of the mobile station apparatus and a prescribed power value estimated for uplink transmission.
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