System and method for providing voice service in a multimedia mobile network
US9137709B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2011 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Feb 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/0022
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
User Equipment (UE) receiving non-voice packet switched services in an Evolved Universal Mobile Telecommunications System Terrestial Radio Access Network (eUTRAN) cell undergoes handover to a circuit switched GSM/Edge Radio Access Network (GERAN)/UTRAN cell in response to a voice service page. An eNodeB of the active eUTRAN cell uses a measurement report history for the UE to select an available circuit switched cell for handover. The voice service is established in the circuit switched domain of a GERAN/UTRAN cell to ensure service continuity regardless of UE mobility that would otherwise not be possible if the voice service was established in the eUTRAN cell. A Gs-like interface between a Mobile Switching Center (MSC) of the CS Core Network and the Mobility Management Entity (MME) of the Evolved Packet Core provides an interface for page requests and location update procedures to be performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.