Method and apparatus for inter-technology handoff of a user equipment
US8964691B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 2009 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Jul 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication system is provided that implements an inter-technology SRVCC handoff without the need for an SRVCC indicator. A user equipment (UE) establishes a communication session that comprises a voice component in a packet data network. In response to determining to handoff the session to a target network, the communication system determines that the session comprises a voice component based on a call-type identifier, preferably a QoS Class Identifier (QCI), that is associated with a voice call and further determines that a target network is a circuit switched network based on configuration information maintained in association with the target network. In response to determining that the session comprises a voice component, that the target network is a circuit switched network, and, based on a profile of the UE, that the UE is capable of operation in single radio mode, the communication system determines to implement a SRVCC handoff procedure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.