	US 12,452,900 B2
	Methods of improving the robustness for DCI triggered beam update in 5G NR
Zhibin Yu, Unterhaching (DE); and Yushu Zhang, Beijing (CN)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by APPLE INC., Cupertino, CA (US)
Filed on Jun. 21, 2024, as Appl. No. 18/750,281.
Application 18/750,281 is a continuation of application No. 17/593,079, granted, now 12,058,720, previously published as PCT/US2020/031102, filed on May 1, 2020.
Claims priority of provisional application 62/842,006, filed on May 2, 2019.
Prior Publication US 2024/0381407 A1, Nov. 14, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 4/00 (2018.01); H04L 5/00 (2006.01); H04W 72/044 (2023.01); H04W 72/23 (2023.01); H04W 72/542 (2023.01)

CPC H04W 72/542 (2023.01) [H04L 5/0051 (2013.01); H04W 72/046 (2013.01); H04W 72/23 (2023.01)]

14 Claims

1. A method of a user equipment (UE), comprising:

decoding downlink control information (DCI) of a physical downlink control channel (PDCCH) to generate decoded DCI;

extracting aperiodic channel state information reference signal (AP CSI-RS) information from the decoded DCI;

extracting aperiodic sounding reference signal (AP SRS) information from the decoded DCI;

updating a beam configuration of a reference signal based on the AP CSI-RS information; and

generating an uplink (UL) feedback message indicating that the PDCCH was successfully decoded by the UE, wherein the UL feedback message comprises a triggered AP SRS based on the AP SRS information, and wherein the triggered AP SRS is spatially associated with the reference signal.