SECURITY PROTECTION METHOD AND APPARATUS IN WIRELESS COMMUNICATION SYSTEM

Title:

SECURITY PROTECTION METHOD AND APPARATUS IN WIRELESS COMMUNICATION SYSTEM

Document Type and Number:

WIPO Patent Application WO/2019/216739

Kind Code:

A1

Abstract:

A method of performing a security mode control procedure by a user equipment (UE), and an apparatus therefor are disclosed. The method includes performing, over a 3 rd generation partnership project (3GPP) access, a first authentication procedure and a first key agreement procedure with an access and mobility management function (AMF), wherein a key set identifier (ngKSI) is changed during the first authentication procedure and the first key agreement procedure, receiving, from the AMF over the 3GPP access, a first security mode command message including the ngKSI, and receiving, from the AMF over a non-3GPP access, a second security mode command message including the ngKSI, wherein the UE is registered to the AMF and a same public land mobile network (PLMN) over both the 3GPP access and the non-3GPP access.

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Inventors:

SUH KYUNGJOO (KR)
BAEK YOUNGKYO (KR)

Application Number:

PCT/KR2019/005754

Publication Date:

November 14, 2019

Filing Date:

May 13, 2019

Export Citation:

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Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

H04W12/08; H04W12/06

Foreign References:

US20110004762A1	2011-01-06
US20100180111A1	2010-07-15

Other References:

"3rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3 (Release 15)", 3GPP TS 24.501, 9 May 2018 (2018-05-09), XP051451331
SAMSUNG: "Security Mode Command", CL-182428, 3GPP TSG-CT WG1 MEETING #110, 9 April 2018 (2018-04-09), XP051434779
INTEL CORPORATION: "Security mode control procedure and resetting the NAS COUNT", CI-182169, 3GPP TSG-CT WG1 MEETING #110, 8 April 2018 (2018-04-08), XP051412206
See also references of EP 3785460A4

Attorney, Agent or Firm:

Y.P.LEE,MOCK & PARTNERS (KR)

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