Method for continuously providing emergency call service through packet network
US9872317B2 · kind B2 · utility
3Cited by
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16Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 10, 2014 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Nov 27, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and a device for maintaining an emergency call service through a packet network in a mobile communication network are provided. UE using VoLTE receives identification information indicating whether an IMS Voice over PS (VoPS) is supported from a network to determine whether the IMS VoPS of the network is supported, and processes paging for a CS voice call according to the determination result if the emergency call service continues through the packet network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.