Invention Grant
- Patent Title: Terminal device, base station device, and communication method
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Application No.: US15750149Application Date: 2016-08-02
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Publication No.: US10440747B2Publication Date: 2019-10-08
- Inventor: Naoki Kusashima , Kazuyuki Shimezawa , Wataru Ouchi , Alvaro Ruiz Delgado
- Applicant: SHARP KABUSHIKI KAISHA
- Applicant Address: JP Sakai, Osaka
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Sakai, Osaka
- Agency: ScienBiziP, P.C.
- Priority: JP2015-154657 20150805
- International Application: PCT/JP2016/072621 WO 20160802
- International Announcement: WO2017/022748 WO 20170209
- Main IPC: H04W74/08
- IPC: H04W74/08 ; H04W72/04 ; H04J1/00 ; H04J11/00 ; H04W16/14 ; H04W72/08 ; H04W72/12
Abstract:
To efficiently control a cell by using a non-allocated frequency band or a shared frequency band. A terminal device includes a transmission unit configured to transmit a PUSCH and a CCA check unit configured to perform LBT before a subframe for which a transmission of the PUSCH is indicated. The terminal device determines start time of the LBT, based on start time of the transmission of the PUSCH, a CCA slot length, and the number of CCA checks. The terminal device includes a reception unit configured to receive a PDCCH. The number of CCA checks is indicated on the PDCCH.
Public/Granted literature
- US20180227953A1 TERMINAL DEVICE, BASE STATION DEVICE, AND COMMUNICATION METHOD Public/Granted day:2018-08-09
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