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:
Aug. 03, 2021
Filed:
Aug. 03, 2017
Interdigital Patent Holdings, Inc., Wilmington, DE (US);
Ghyslain Pelletier, Montreal, CA;
Stephen E. Terry, Northport, NY (US);
Paul Marinier, Brossard, CA;
Guodong Zhang, Syosset, NY (US);
Peter S. Wang, E. Setauket, NY (US);
Jin Wang, Princeton, NJ (US);
Shankar Somasundaram, Sunnyvale, CA (US);
Jean-Louis Gauvreau, La Prairie, CA;
Charles A. Dennean, Melville, NY (US);
Erdem Bala, East Meadow, NY (US);
Afshin Haghighat, Ile-Bizard, CA;
INTERDIGITAL PATENT HOLDINGS, INC., Wilmington, DE (US);
Abstract
Methods and apparatus for random access in multicarrier wireless communications are disclosed. Methods and apparatus are provided for physical random access channel (PRACH) resource signaling, PRACH resource handling, preamble and PRACH resource selection, random access response (RAR) reception, preamble retransmission, and transmission and reception of subsequent messages. A method for maintaining an allowed multicarrier uplink (UL) random access channel (RACH) configuration set by adding an UL carrier to the allowed RACH configuration set provided that a triggering event occurs and performing a random access (RA) procedure using the allowed RACH configuration set. A method for sending data in multicarrier wireless communications by determining a set of available UL carriers and selecting an UL carrier from the set of available UL carriers.