Invention Grant
- Patent Title: User apparatus, and random access preamble transmission method
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Application No.: US16495236Application Date: 2017-03-23
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Publication No.: US11432330B2Publication Date: 2022-08-30
- Inventor: Tomoya Ohara , Hiroki Harada
- 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/JP2017/011877 WO 20170323
- International Announcement: WO2018/173229 WO 20180927
- Main IPC: H04W74/08
- IPC: H04W74/08 ; H04W74/00 ; H04W72/04 ; H04W72/00 ; H04W52/36
Abstract:
A user apparatus in a radio communication system that includes a base station and the user apparatus includes a transmission unit that transmits a random access preamble with the use of a beam out of a plurality of beams; and a counter retaining unit that has, for each beam, a counter that indicates the number of times of power ramping performed in transmission of a random access preamble.
Public/Granted literature
- US20210289557A1 USER APPARATUS, AND RANDOM ACCESS PREAMBLE TRANSMISSION METHOD Public/Granted day:2021-09-16
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