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:
Jun. 14, 2022
Filed:
Aug. 06, 2020
Electronics and Telecommunications Research Institute, Daejeon, KR;
Jae Su Song, Daejeon, KR;
Seung Kwon Baek, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A security key management method performed in a PDCP layer of a terminal dual-connected to a first cell and a second cell may comprise receiving a PDCP PDU on which ciphering or integrity protection to which a first security key of the first cell or a second security key of the second cell is applied is performed; performing at least one of integrity verification and header decompression for the PDCP PDU based on the first security key; performing at least one of integrity verification and header decompression for the PDCP PDU based on the second security key; and determining a security key applied to the PDCP PDU, based on result of the at least one of integrity verification and header decompression based on the first security key and result of the at least one of integrity verification and header decompression based on the second security key.