Invention Application
US20160330617A1 APPARATUS, SYSTEM AND METHOD FOR SCE 审中-公开
装置,系统和方法

  • Patent Title: APPARATUS, SYSTEM AND METHOD FOR SCE
  • Patent Title (中): 装置,系统和方法
  • Application No.: US15107640
    Application Date: 2014-11-20
  • Publication No.: US20160330617A1
    Publication Date: 2016-11-10
  • Inventor: Xiaowei ZHANGAnand PRASAD
  • Applicant: NEC CORPORATION
  • Priority: JP2013-265273 20131224
  • International Application: PCT/JP2014/005847 WO 20141120
  • Main IPC: H04W12/04
  • IPC: H04W12/04 H04W12/08
APPARATUS, SYSTEM AND METHOD FOR SCE
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.
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