Invention Grant
- Patent Title: User terminal and wireless communication method
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Application No.: US16622558Application Date: 2017-06-15
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Publication No.: US11218262B2Publication Date: 2022-01-04
- Inventor: Keisuke Saito , Kazuaki 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 Bergman Watanabe & Burton LLP
- International Application: PCT/JP2017/022226 WO 20170615
- International Announcement: WO2018/229956 WO 20181220
- Main IPC: H04L25/02
- IPC: H04L25/02 ; H04W72/04 ; H04L5/00

Abstract:
Provided is a user terminal to be used in a future wireless communication system which bundles a plurality of slots (sub-frames) in a time direction. When applying bundling, a Front-loaded DMRS (Demodulation Reference Signal) is mapped to the rear of a control channel in a leading slot, and in second and subsequent slots, mapping is carried out on the basis of a rule to prevent conflict between the Front-loaded DMRS and the control channel. A control unit (203) of a user terminal (20) stipulates, in second and subsequent slots, the mapping configuration of the Front-loaded DMRS (the existence of mapping and/or the mapping position) on the basis of the aforementioned rules.
Public/Granted literature
- US20210152301A1 USER TERMINAL AND WIRELESS COMMUNICATION METHOD Public/Granted day:2021-05-20
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