Invention Grant
- Patent Title: Communication system, mobile terminal apparatus, local area base station apparatus and communication method
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Application No.: US14416295Application Date: 2013-06-27
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Publication No.: US10805055B2Publication Date: 2020-10-13
- Inventor: Yoshihisa Kishiyama , Kazuaki Takeda , Satoshi Nagata , Takehiro Nakamura , Hideaki Takahashi , Sadayuki Abeta , Hiroyuki Ishii
- 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: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1f2cc49e
- International Application: PCT/JP2013/067686 WO 20130627
- International Announcement: WO2014/017251 WO 20140130
- Main IPC: H04L5/00
- IPC: H04L5/00 ; H04J11/00 ; H04J13/16 ; H04W36/00 ; H04W36/04 ; H04W16/32 ; H04W84/04 ; H04W88/02 ; H04W88/08
Abstract:
A system for supporting smooth mobility of a mobile terminal apparatus between a plurality of local areas that are arranged in a wide area is disclosed. The system includes a wide area base station apparatus that covers a wide area, a local area base station apparatus that covers a local area arranged in the wide area, and a mobile terminal apparatus that can communicate with the wide area base station apparatus and the local area base station apparatus, and is configured to scramble a data signal and a reference signal by a scrambling sequence that is common between a plurality of local areas in communication between the local area base station apparatus and the mobile terminal apparatus.
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