Invention Grant
- Patent Title: Method and apparatus for controlling uplink power in RACH-less handover
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Application No.: US16098117Application Date: 2017-04-25
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Publication No.: US10772045B2Publication Date: 2020-09-08
- Inventor: Youngdae Lee , Gwanmo Ku , Sangwon Kim
- Applicant: LG ELECTRONICS INC.
- Applicant Address: KR Seoul
- Assignee: LG ELECTRONICS INC.
- Current Assignee: LG ELECTRONICS INC.
- Current Assignee Address: KR Seoul
- Agency: Lee, Hong, Degerman, Kang & Waimey
- International Application: PCT/KR2017/004363 WO 20170425
- International Announcement: WO2017/191919 WO 20171109
- Main IPC: H04W52/14
- IPC: H04W52/14 ; H04W76/20 ; H04W36/08 ; H04W52/40 ; H04W52/50 ; H04W52/48 ; H04W52/24 ; H04W52/36 ; H04W52/32 ; H04W36/00

Abstract:
Provided are a method for a terminal controlling uplink power in a rando access channel-less (RACH-less) handover, and an apparatus for supporting same. The method may comprise the steps of: receiving, from a source base station, an RRC connection reconfiguration message including an uplink grant; transmitting, to a target base station using a first transmission power, an RRC connection reconfiguration complete message, on the basis of the uplink grant; receiving, from the target base station, a NACK corresponding to the RRC connection reconfiguration complete message; ramping the first transmission power to a second transmission power; and transmitting the RRC connection reconfiguration complete message using the ramped second transmission power.
Public/Granted literature
- US20190150096A1 METHOD AND APPARATUS FOR CONTROLLING UPLINK POWER IN RACH-LESS HANDOVER Public/Granted day:2019-05-16
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