Invention Grant
US09439181B2 Radio communication system, radio base station apparatus, user terminal, and radio communication method
有权
无线通信系统，无线基站装置，用户终端，无线通信方式等
- Patent Title: Radio communication system, radio base station apparatus, user terminal, and radio communication method
- Patent Title (中): 无线通信系统，无线基站装置，用户终端，无线通信方式等
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Application No.: US14355645Application Date: 2012-11-08
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Publication No.: US09439181B2Publication Date: 2016-09-06
- Inventor: Kazuaki Takeda , Liu Liu , Lan Chen , Qin Mu , Wenbo Wang
- Applicant: NTT DOCOMO, INC.
- Applicant Address: JP Tokyo
- Assignee: NTT DOCOMO, INC.
- Current Assignee: NTT DOCOMO, INC.
- Current Assignee Address: JP Tokyo
- Agency: Osha Liang LLP
- Priority: JP2011-245866 20111109
- International Application: PCT/JP2012/078994 WO 20121108
- International Announcement: WO2013/069733 WO 20130516
- Main IPC: G01R31/08
- IPC: G01R31/08 ; H04W72/04 ; H04W72/12 ; H04L5/00 ; H04L5/14 ; H04J3/00
Abstract:
According to the present invention, even when the ratio between uplink subframes and downlink subframes is changed in each component carrier in TDD carrier aggregation, it is still possible to prevent a decrease in capacity. With the radio communication method according to the present invention, a radio base station apparatus generates a downlink control channel signal containing downlink control information including carrier indicator field information, and transmits the downlink control channel signal to a user terminal, and the user terminal receives the downlink control channel signal, and executes signal processing with respect to the downlink signal in accordance with the downlink control information. In this case, the carrier indicator field information is information which associates a carrier index and the index of a secondary cell subframe to be scheduled.
Public/Granted literature
- US20140241223A1 RADIO COMMUNICATION SYSTEM, RADIO BASE STATION APPARATUS, USER TERMINAL, AND RADIO COMMUNICATION METHOD Public/Granted day:2014-08-28
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