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:
Dec. 16, 2025
Filed:
Mar. 24, 2020
Interdigital Patent Holdings, Inc., Wilmington, DE (US);
Michelle Perras, Montreal, CA;
Samir Ferdi, Kirkland, CA;
Martino Freda, Laval, CA;
Saad Ahmad, Montreal, CA;
InterDigital Patent Holdings, Inc., Wilmington, DE (US);
Abstract
Method, apparatus and systems are disclosed that may be implemented in a Wireless Transmit/Receive Unit (WTRU) for unicast communication with another WTRU. The method may include sending, by the WTRU to the other WTRU via a PC5 interface, a communication request indicating first security information for the WTRU and receiving, by the WTRU from the other WTRU via the PC5 interface, information which is integrity protected indicating second security information for the other WTRU. The method may also include deriving, by the WTRU from the indicated second security information, a first set of security keys for communication via a first layer using the U-plane and a second set of security keys for communication via a second layer using the C-plane; and sending, by the WTRU to the other WTRU via the PC5 interface, a message that is at least integrity protected using the derived first set of keys.