Method, apparatus, and system for handover to circuit switched domain
US11026130B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2019 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Jun 29, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M7/0066
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method, an apparatus and a system for a handover to a circuit switched domain are disclosed. In an embodiment, a system includes a mobility management entity (MME) and at least two a mobile switching center (MSCs), wherein the at least two MSCs comprise a first MSC capable of supporting a circuit switched fallback (CSFB) and a single radio voice call continuity (SRVCC) and a second MSC not capable of supporting the SRVCC, and wherein the MME is configured to select the first MSC for a user equipment (UE) from the at least two MSCs in a combined tracking area update procedure of the UE when a location service of a circuit switched (CS) domain triggers an SRVCC procedure for the UE and when the UE has a Voice over Internet Protocol (VOIP) service in progress.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.