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:
Sep. 17, 2024
Filed:
Jun. 01, 2023
Nec Corporation, Tokyo, JP;
Xiaowei Zhang, Tokyo, JP;
Anand Raghawa Prasad, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A UE () provides information on potential S'eNB(s). The information is forwarded from an MeNB (_) to an M′eNB (_) such that the M′eNB (_) can determine, before the handover happens, whether the M′eNB (_) will configure a new SeNB (S′eNB) and which S′eNB the M′eNB (_) will configure. In one of options, the MeNB (_) derives a key S′-KeNB for communication protection between the UE () and the S′eNB (_), and send the S′-KeNB to the M′eNB (_). In another option, the M′eNB (_) derives the S′-KeNB from a key KeNB* received from the MeNB (_). The M′eNB (_) sends the S′-KeNB to the S′eNB (_). Moreover, there are also provided several variations to perform SeNB Release, SeNB Addition, Bearer Modification and the like, in which the order and/or timing thereof can be different during the handover procedure.