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:
Sep. 19, 2023
Filed:
Aug. 18, 2021
Qualcomm Incorporated, San Diego, CA (US);
Chinmay Shankar Vaze, San Diego, CA (US);
Alexei Yurievitch Gorokhov, San Diego, CA (US);
Yongle Wu, San Diego, CA (US);
Paolo Minero, La Jolla, CA (US);
Hari Sankar, San Diego, CA (US);
Ashok Mantravadi, San Diego, CA (US);
Raghu Narayan Challa, San Diego, CA (US);
Arvind Vardarajan Santhanam, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A device may selectively listen for a tracking reference signal (TRS) during connected mode discontinuous reception (CDRx) based on whether the device is to switch between repeaters of a base station (such as during travel). A device may determine whether the device is in a high speed train (HST) scenario (such as based on a difference in frequency errors generated using a synchronization signal block (SSB) and generated using a TRS, based on a trajectory of a frequency error or a frequency error difference over time, based on instantaneous frequency errors, etc.). When the device is in a HST scenario, the device listens for a TRS during CDRx, and the device generates a frequency error using the TRS. When the device is not in a HST scenario, the device prevents listening for a TRS during CDRx (with a SSB received during CDRx to be used to generate a frequency error).