Title:
TERMINAL DEVICE IDENTIFIER OBTAINING METHOD, APPARATUS AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/196011
Kind Code:
A1
Abstract:
A terminal device identifier obtaining method, apparatus and system, for solving the problem of exposure of user privacy caused by a transmission mode of a user permanent identifier. In the method, a key management network element receives, from a first terminal device, a first key request carrying a first identifier, the first identifier being an anonymous identifier or a temporary identifier of a second terminal device; the key management network element sends, to a unified data management network element, a first request carrying the first identifier, and the unified data management network element determines a SUPI of the second terminal device according to the first identifier, and sends, to the key management network element, a first response carrying the SUPI; the key management network element executes authentication verification on the second terminal device according to the SUPI, and after the verification is passed, the key management network element sends a first key response to the first terminal device, the first key response comprising a secure communication parameter; the key management network element obtains the SUPI from the unified data management network element, so that the safety of the user permanent identifier of the second terminal device can be effectively ensured.
Inventors:
WU YIZHUANG (CN)
LI HE (CN)
HU LI (CN)
LI HE (CN)
HU LI (CN)
Application Number:
PCT/CN2020/082564
Publication Date:
October 07, 2021
Filing Date:
March 31, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W12/02; H04W76/11
Domestic Patent References:
| WO2019023825A1 | 2019-02-07 |
Foreign References:
| CN110830989A | 2020-02-21 | |||
| CN110602803A | 2019-12-20 | |||
| US20200092836A1 | 2020-03-19 |
Other References:
ERICSSON: "Solution for providing IMS voice and emergency services for SNPN subscribers reusing access level identifiers and credentials.", 3GPP DRAFT; S2-2000169, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG2, no. Incheon, Korea; 20200113 - 20200117, 7 January 2020 (2020-01-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051842273
See also references of EP 4120713A4
See also references of EP 4120713A4
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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