APERIODIC TRACKING REFERENCE SIGNAL

WIPO Patent Application WO/2019/139769

A1

Methods, systems, and devices for wireless communications are described. A base station may determine that a triggering event associated with a user equipment (UE) has occurred. The UE may receive, based at least in part on an occurrence of a triggering event associated with the UE, a trigger signal that identifies resources to be used for transmission of an aperiodic tracking reference signal (TRS). The UE may receive the aperiodic TRS based at least in part on the trigger signal and the identified resources. The UE may perform at least one of a tracking function, or a synchronization function, or an alignment function, or a combination thereof, in response to the occurrence of the triggering event and based at least in part on the aperiodic TRS.

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LEE HEECHOON (US)
ANG PETER (US)
SUN JING (US)
LUO TAO (US)
GAAL PETER (US)
CHEN WANSHI (US)

PCT/US2018/066930

July 18, 2019

December 20, 2018

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QUALCOMM INC (US)

H04L5/00

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QUALCOMM ERICSSON ...: "WF on Aperiodic TRS", vol. RAN WG1, no. Reno, NV, USA; 20171127 - 20171201, 4 December 2017 (2017-12-04), XP051370779, Retrieved from the Internet [retrieved on 20171204]
MEDIATEK INC: "Summary of Offline Discussion on Bandwidth Part Operation", vol. RAN WG1, no. Nagoya, Japan; 20170918 - 20170921, 20 September 2017 (2017-09-20), XP051353894, Retrieved from the Internet [retrieved on 20170920]
QUALCOMM INCORPORATED: "Remaining issues on TRS", vol. RAN WG1, no. Vancouver, Canada; 20180122 - 20180126, 13 January 2018 (2018-01-13), XP051385136, Retrieved from the Internet [retrieved on 20180113]

KARREN, J., Scott (US)

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