Emergency call method and user terminal
US11792631B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2019 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Oct 12, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/042
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments of the invention discloses an emergency call method and a user terminal. The method includes: obtaining a home public land mobile network (HPLMN) and an equivalent HPLMN (EHPLMN) from a SIM card of a user terminal; receiving an emergency call operation of a user; receiving, in response to the emergency call operation, a public land mobile network (PLMN) list broadcast by an access network device, which is in a multi-operator core network (MOCN), and the PLMN list includes a plurality of PLMNs that share the access network device; when the PLMN list includes the HPLMN or the EHPLMN, determining that the HPLMN or the EHPLMN is an optimal PLMN; and making an emergency call through a core network of the optimal PLMN. Thus, an emergency call center can obtain a phone number of the user terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.