Methods and user equipment for managing internet protocol multimedia subsystem call over long-term evolution in single radio voice call continuity area
US10485050B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2017 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Jun 15, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/38
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and User Equipment (UE) for managing IMS call over LTE in SRVCC area are provided. The method may include detecting, by an IMS client, that the IMS call over LTE is in an alert state, and a Radio Resource Control (RRC) reconfiguration cells are configured for the IMS call over LTE. Further, the method may include initiating by the IMS client a timer with a value less than a data inactivity timer value from a network entity. Further, the method may include detecting by IMS client that the timer has expired before establishing the IMS call over LTE and restarting by the IMS client the timer. Furthermore, the method may include sending by the IMS client a Session Initiation Protocol (SIP) message to the network entity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.