Invention Application
- Patent Title: APPARATUS, SYSTEM AND METHOD FOR SCE
- Patent Title (中): 装置,系统和方法
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Application No.: US15107640Application Date: 2014-11-20
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Publication No.: US20160330617A1Publication Date: 2016-11-10
- Inventor: Xiaowei ZHANG , Anand PRASAD
- Applicant: NEC CORPORATION
- Priority: JP2013-265273 20131224
- International Application: PCT/JP2014/005847 WO 20141120
- Main IPC: H04W12/04
- IPC: H04W12/04 ; H04W12/08

Abstract:
In order for supporting separate ciphering at an MeNB (20) and an SeNB (30), the MeNB (20) derives separate first and second keys (KUPenc-M, KUPenc-S) from a third key (KeNB). The first key (KUPenc-M) is used for confidentially protecting first traffic transmitted over U-Plane between the MeNB (20) and a UE (10). The first key (KUPenc-M) may be the same as current KUPenc or a new key. The second key (KUPenc-S) is used for confidentially protecting second traffic transmitted over the U-Plane between the UE (10) and the SeNB (30). The MeNB (20) sends the second key (KUPenc-S) to the SeNB (30). The UE (10) negotiates with the MeNB (20), and derives the second key (KUPenc-S) based on a result of the negotiation.
Public/Granted literature
- US10652733B2 Apparatus, system and method for SCE Public/Granted day:2020-05-12
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