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:
Feb. 23, 2021
Filed:
Aug. 06, 2018
Htc Corporation, Taoyuan, TW;
Chih-Hsiang Wu, Taoyuan, TW;
Ling-San Meng, Taoyuan, TW;
HTC Corporation, Taoyuan, TW;
Abstract
A base station (BS) for handling Physical Random Access Channel (PRACH) resources on a SCell in carrier aggregation comprises at least one storage device storing instructions of transmitting a radio resource control (RRC) message configuring the SCell to a communication device, wherein the RRC message comprises a DL beam management (BM) reference signal (RS) configuration and an association between a plurality of PRACH resources and a plurality of DL Tx beams; transmitting a plurality of DL BM RSs by using the plurality of DL Tx beams on the SCell, respectively; receiving a measurement report of the plurality of DL BM RSs; determining a DL Tx beam according to the measurement report; transmitting a Physical DL Control Channel (PDCCH) order by using the DL Tx beam, wherein the PDCCH order comprises a PRACH mask index indicating at least one PRACH resource; and determining a PRACH resource according to the measurement report.