Title:
MOBILE COMMUNICATION METHOD, RADIO BASE STATION, AND MOBILE STATION
Document Type and Number:
Japanese Patent JP2010045815
Kind Code:
A
Abstract:
To guarantee originality of an intermediate key KeNB* irrespective of frequencies of cells, when applying [hand-over preparation processing] to a plurality of cells.
This mobile communication method has a process in which an HO source radio base station inputs identification information PCI of a base station key KeNB and an HO destination cell and identification information ARFCN of a frequency for the HO destination in a first key derivation function KDF(*), in HO processing, and generates intermediate key KeNB* thereby to transmit it to an HO destination radio base station, and a process in which the HO destination radio base station generates the base station key KeNB based on the intermediate Key KeNB*, in HO processing.
Inventors:
IWAMURA MIKIO
ZUGENMAIER ALF
ZUGENMAIER ALF
Application Number:
JP2009229783A
Publication Date:
February 25, 2010
Filing Date:
October 01, 2009
Export Citation:
Assignee:
NTT DOCOMO INC
International Classes:
H04W12/04; H04L9/08; H04W36/08
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Masakazu Ito
Shunichi Takahashi
Ichitaro Ito
Iwa Saki Kokuni
Masakazu Ito
Shunichi Takahashi
Ichitaro Ito
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