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. 26, 2026
Filed:
Apr. 24, 2021
Lenovo (Singapore) Pte. Ltd., New Tech Park, SG;
Sheeba Backia Mary Baskaran, Friedrichsdorf, DE;
Andreas Kunz, Ladenburg, DE;
Genadi Velev, Darmstadt, DE;
Prateek Basu Mallick, Dreieich, DE;
Joachim Loehr, Wiesbaden, DE;
Hyung-Nam Choi, Ottobrunn, DE;
Lenovo (Singapore) Pte. Ltd., Singapore, SG;
Abstract
Apparatuses, methods, and systems are disclosed for setting up multiple user plane ('UP') security contexts. One apparatus includes a transceiver and a processor that derives distinct UP integrity and ciphering keys for a selected central unit user plane (“CU-UP”) node in the RAN, said derivation using a key derivation function. The processor assigns a UP Security Indicator to uniquely identify the derived distinct UP integrity and ciphering keys and the transceiver sends a setup request to the selected CU-UP node, said setup request containing the UP Security Indicator and the distinct UP integrity and ciphering keys. The transceiver receives a setup response from the selected CU-UP node and the processor activates distinct UP security at a UE.