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EP4513921

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Extract from the Register of European Patents

EP About this file: EP4513921

EP4513921 - KEY MANAGEMENT METHOD AND COMMUNICATION APPARATUS [Right-click to bookmark this link]
Status	Request for examination was made Status updated on 24.01.2025 Database last updated on 11.04.2026
Former	The international publication has been made Status updated on 10.11.2023
Most recent event Tooltip	21.03.2026	New entry: Renewal fee paid
Applicant(s)	For all designated states Huawei Technologies Co., Ltd. Huawei Administration Building Bantian Longgang District Shenzhen, Guangdong 518129 / CN
	[2025/09]
Inventor(s)	01 / LEI, Ao Shenzhen, Guangdong 518129 / CN
	02 / WU, Yizhuang Shenzhen, Guangdong 518129 / CN
	03 / CUI, Yang Shenzhen, Guangdong 518129 / CN
	04 / HU, Li Shenzhen, Guangdong 518129 / CN
	[2025/09]
Representative(s)	Körber, Martin Hans Mitscherlich PartmbB Karlstraße 7 80333 München / DE
	[N/P]
Former [2025/09]	Körber, Martin Hans Mitscherlich PartmbB Patent- und Rechtsanwälte Karlstraße 7 80333 München / DE
Application number, filing date	23799196.3	24.04.2023
	[2025/09]
	WO2023CN90413
Priority number, date	CN202210487154	06.05.2022 Original published format: CN202210487154
	[2025/09]
Filing language	ZH
Procedural language	EN
Publication	Type:	A1 Application with search report
	No.:	WO2023213209
	Date:	09.11.2023
	Language:	ZH
	[2023/45]
	Type:	A1 Application with search report
	No.:	EP4513921
	Date:	26.02.2025
	Language:	EN
	[2025/09]
Search report(s)	International search report - published on:	CN	09.11.2023
	(Supplementary) European search report - dispatched on:	EP	16.07.2025
Classification	IPC:	H04W12/02, H04W12/03, H04W12/04, H04W12/041, H04W12/0431, H04W12/72, // H04W60/04	[2025/33]
	CPC:	H04W12/02 (EP,CN); H04W12/04 (EP,US); H04W12/03 (EP,CN); H04W12/041 (EP); H04W12/0431 (EP); H04W12/72 (EP); (+) H04W60/04 (EP); H04W84/042 (US) (-)
	Former IPC [2025/09]	H04W12/02
Designated contracting states	AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR [2025/09]
Title	German:	SCHLÜSSELVERWALTUNGSVERFAHREN UND KOMMUNIKATIONSVORRICHTUNG	[2025/09]
	English:	KEY MANAGEMENT METHOD AND COMMUNICATION APPARATUS	[2025/09]
	French:	PROCÉDÉ DE GESTION DE CLÉ ET APPAREIL DE COMMUNICATION	[2025/09]
Entry into regional phase	20.11.2024	Translation filed
	20.11.2024	National basic fee paid
	20.11.2024	Search fee paid
	20.11.2024	Designation fee(s) paid
	20.11.2024	Examination fee paid
Examination procedure	20.11.2024	Examination requested [2025/09]
	14.11.2025	Amendment by applicant (claims and/or description)
	14.11.2025	Date on which the examining division has become responsible
Fees paid	Renewal fee
	30.04.2025	Renewal fee patent year 03
	20.03.2026	Renewal fee patent year 04
Opt-out from the exclusive Tooltip competence of the Unified Patent Court	See the Register of the Unified Patent Court for opt-out data
	Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:	Search	[XI] WO2020250664 (NEC CORP et al.) [X] 1-4,10-15 * paragraphs [0082] - [0099] *[I] 5-9
		[A] "3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; 3GPP System Architecture Evolution (SAE); Security architecture (Release 17)", vol. SA WG3, no. V17.1.0, 24 March 2022 (2022-03-24), pages 1 - 174, XP052144799, Retrieved from the Internet [retrieved on 20220324] [A] 1-15 * section "Annex F" *
		[A] "3 Generation Partnership Project; Technical Specification Group Services and System Aspects; Security architecture and procedures for 5G system (Release 17)", vol. SA WG3, no. V17.4.2, 26 January 2022 (2022-01-26), pages 1 - 287, XP052118633, Retrieved from the Internet [retrieved on 20220126] [A] 1-15 * section 6.12 *
	International search	[A] CN110166230 (HUAWEI INT PTE LTD et al.) [A] 1-51 * entire document *
		[A] WO2019158028 (HUAWEI TECH CO LTD et al.) [A] 1-51 * entire document *
		[A] CN108848502 (XINGTANG COMMUNICATION TECH CO LTD et al.) [A] 1-51 * entire document *
		[A] US2022116777 (PHAN LY-THANH et al.) [A] 1-51 * entire document *
	by applicant	CN202210487154

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