Title:
ROAMING METHOD, APPARATUS AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/134167
Kind Code:
A1
Abstract:
Provided are a roaming method, apparatus and system. The method comprises: a terminal device acquiring information of a first PLMN, wherein there is a dynamic roaming protocol between the first PLMN and a second PLMN; and if the terminal device cannot access the second PLMN, the terminal device sending an access request to the first PLMN according to the information of the first PLMN. There is a dynamic roaming protocol between a first PLMN and a second PLMN, such that a terminal device can shorten the time for waiting for service recovery after an HPLMN fails.
Inventors:
ZHU FANGYUAN (CN)
LI YAN (CN)
LIU JIANNING (CN)
LI YAN (CN)
LIU JIANNING (CN)
Application Number:
PCT/CN2019/129816
Publication Date:
July 08, 2021
Filing Date:
December 30, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W48/16
Domestic Patent References:
| WO2005020443A2 | 2005-03-03 |
Foreign References:
| CN104837180A | 2015-08-12 | |||
| US20150055447A1 | 2015-02-26 | |||
| CN105307148A | 2016-02-03 | |||
| CN105393603A | 2016-03-09 |
Other References:
HUAWEI: "Use case for HPLMN failure with part of CN still working", 3GPP DRAFT; S1-191099 USE CASE FOR HPLMN FAILURE WITH PART OF CN SITLL WORKS, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG1, no. Suzhou, China; 20190506 - 20190510, 26 April 2019 (2019-04-26), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051719043
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