The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2024
Filed:
Jan. 14, 2021
Apple Inc., Cupertino, CA (US);
Qiming Li, Beijing, CN;
Manasa Raghavan, Cupertino, CA (US);
Dawei Zhang, Cupertino, CA (US);
Huaning Niu, Cupertino, CA (US);
Jie Cui, Cupertino, CA (US);
Panagiotis Botsinis, Munich, DE;
Sameh M. Eldessoki, Munich, DE;
Xiang Chen, Cupertino, CA (US);
Yang Tang, Cupertino, CA (US);
APPLE INC., Cupertino, CA (US);
Abstract
Methods and systems to activate beams for beam switching based on measurements of a downlink reference signal that is QCL Type-D with a downlink pathloss reference signal are disclosed. A UE may measure and report to a base station the RSRP of the reference signal that is QCL Type-D with a target downlink pathloss reference signal. Based on the reported RSRP measurements, the base station may activate the target pathloss reference signal to command the UE to update the pathloss measurements of the target pathloss reference signal for uplink power control of a beam corresponding to the target pathloss reference signal. The UE may determine whether the target pathloss reference signal is considered known for uplink power control based on the timing relationship among the reception of the reference signal from the base station, the transmission of the RSRP measurement of the reference signal, and reception of the activation command.