Invention Grant
- Patent Title: Radio communication terminal, radio base station and radio communication method
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Application No.: US15025018Application Date: 2014-09-16
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Publication No.: US10212737B2Publication Date: 2019-02-19
- Inventor: Shimpei Yasukawa , Kazuki Takeda , Satoshi Nagata
- 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: JP2013-199187 20130926
- International Application: PCT/JP2014/074414 WO 20140916
- International Announcement: WO2015/045959 WO 20150402
- Main IPC: H04W74/08
- IPC: H04W74/08 ; H04W28/24 ; H04W76/00 ; H04W4/00 ; H04W72/04 ; H04W4/70 ; H04W76/27 ; H04W16/00 ; H04W24/02

Abstract:
The present invention is designed so that PRACH transmission is carried out taking coverage enhancement into account. A radio communication terminal employs coverage enhancement and has a transmitting section that transmits a random access preamble by using a radio resource that is stipulated for the radio communication terminal employing coverage enhancement, and, in this radio communication terminal, one or a combination of the time, the frequency band and the sequence of the radio resource that is stipulated for the radio communication terminal employing coverage enhancement is different from that of a radio resource that is stipulated for a radio communication terminal not employing coverage enhancement.
Public/Granted literature
- US20160234865A1 RADIO COMMUNICATION TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION METHOD Public/Granted day:2016-08-11
Information query