Called recovery method, apparatus, and system
US9749988B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2014 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Oct 15, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide a called recovery method, including: receiving, by a target mobile switching center MSC, a provide roaming number PRN message sent by a backup MSC corresponding to a faulty MSC, where the PRN message carries an instruction for initiating paging to a called terminal through a mobility management entity MME; and performing international mobile subscriber identity IMSI paging according to the instruction, so that an MME to which a called terminal is attached controls the called terminal to perform circuit switched fallback CSFB to complete a called connection. Correspondingly, the embodiments of the present invention further provide a mobile switching center and a called recovery system. This solves a problem that in an MSC pool architecture, called paging in a CS domain cannot be performed when a terminal corresponding to a faulty MSC is attached to an E-UTRAN, and improves paging reliability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.