Title:
A method and a device which make non-accessing layer (NAS) security possible in a LTE mobile device
Document Type and Number:
Japanese Patent JP6240233
Kind Code:
B2
Abstract:
A method and apparatus performs processing of the non-access stratus (NAS) layer (layer 3) in long term evolution (LTE) wireless transmit/receive units (WTRUs), which allows the NAS protocol layer to route layer 3 messages to the correct NAS entity, and encode new NAS message types and information elements. A new architecture is presented that enables NAS security. When a NAS message is generated, a determination is made to whether or not to cipher, de-cipher and/or intergrity check the NAS message based on at least one of a protocol discriminator (PD) of the NAS message, an indicator field in a header of the NAS message, the type of the NAS message, a NAS security state variable, and an indication by an upper layer protocol. The NAS security state variable indicates whether NAS security is currently actove or not and may comprise one bit.
Inventors:
Shanker Somas Durham
Rajapee Mukherjee
Rajapee Mukherjee
Application Number:
JP2016020062A
Publication Date:
November 29, 2017
Filing Date:
February 04, 2016
Export Citation:
Assignee:
Interdigital Patent Holdings Inc.
International Classes:
H04W12/02; H04W4/20; H04W80/04
Other References:
Lucent Technologies,Discussion on transport of NAS signalling,3GPP TSG-RAN WG2#52,3GPP,2006年 3月31日,R2-060947
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office
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