Invention Grant
- Patent Title: Uplink data transmission method and user equipment, and uplink data reception method and base station
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Application No.: US15560844Application Date: 2016-03-24
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Publication No.: US10477578B2Publication Date: 2019-11-12
- Inventor: Suckchel Yang , Joonkui Ahn , Hanbyul Seo , Seungmin Lee
- Applicant: LG ELECTRONICS INC.
- Applicant Address: KR Seoul
- Assignee: LG ELECTRONICS INC.
- Current Assignee: LG ELECTRONICS INC.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- International Application: PCT/KR2016/002995 WO 20160324
- International Announcement: WO2016/153290 WO 20160929
- Main IPC: H04W16/14
- IPC: H04W16/14 ; H04W72/14 ; H04W74/08 ; H04W72/12
Abstract:
The present invention provides a method and device for transmitting an uplink signal in a cell configured in an unlicensed band. A user equipment performs clear carrier assessment (CCA) on a second cell configured in an unlicensed band, and when the CCA is successful, transmits a known signal notifying that the CCA is successful, on the second cell. A base station transmits, to the user equipment, uplink grant for the second cell only when detecting the known signal on the second cell.
Public/Granted literature
- US20180115991A1 UPLINK DATA TRANSMISSION METHOD AND USER EQUIPMENT, AND UPLINK DATA RECEPTION METHOD AND BASE STATION Public/Granted day:2018-04-26
Information query
