Title:
APPARATUSES AND METHODS FOR ALIGNMENT OF COMMON NON ACCESS STRATUM (NAS) SECURITY CONTEXT
Document Type and Number:
WIPO Patent Application WO/2020/200301
Kind Code:
A1
Abstract:
A UE receives a first NAS Security Mode Command message or a NAS Container, which includes an indication to change a common NAS security context that is in use on both accesses, from a 33GP core network over one access, when the UE is in a connected state on both accesses and the UE is using the common NAS security context on both accesses. In response, the UE activates a new NAS security context over the one access. After that, the UE receives a second NAS Security Mode Command message, which includes a KSI associated with the common NAS security context, from the 3GPP core network over the other access, and aligns the common NAS security context in use on the other access with the new NAS security context in use on the one access.
Inventors:
ESKELINEN JARKKO (FI)
NIEMI MARKO (FI)
NIEMI MARKO (FI)
Application Number:
PCT/CN2020/083121
Publication Date:
October 08, 2020
Filing Date:
April 03, 2020
Export Citation:
Assignee:
MEDIATEK SINGAPORE PTE LTD (SG)
MEDIATEK INC (CN)
MEDIATEK INC (CN)
International Classes:
H04W36/00
Domestic Patent References:
| WO2018056957A1 | 2018-03-29 |
Foreign References:
| CN109155909A | 2019-01-04 |
Other References:
NOKIA ET AL.: "Terminology alignment regarding support for interworking without N26", 3GPP TSG-CT WG1 MEETING #112BIS C1-186955, 19 October 2018 (2018-10-19), XP051504944, DOI: 20200620121531X
NOKIA ET AL.: "3GPP TSG-CT WG1 Meeting #112bis C1-186955", TERMINOLOGY ALIGNMENT REGARDING SUPPORT FOR INTERWORKING WITHOUT N26, 19 October 2018 (2018-10-19), XP051504944, DOI: 20200620121532X
MEDIATEK INC.: "3GPP TSG-CT WG1 Meeting #111bis C1-184916", REQUEST FOR KAMF RE-DERIVATION, 13 July 2018 (2018-07-13), XP051466135, DOI: 20200620121824Y
NOKIA ET AL.: "3GPP TSG-CT WG1 Meeting #112bis C1-186955", TERMINOLOGY ALIGNMENT REGARDING SUPPORT FOR INTERWORKING WITHOUT N26, 19 October 2018 (2018-10-19), XP051504944, DOI: 20200620121532X
MEDIATEK INC.: "3GPP TSG-CT WG1 Meeting #111bis C1-184916", REQUEST FOR KAMF RE-DERIVATION, 13 July 2018 (2018-07-13), XP051466135, DOI: 20200620121824Y
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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