Method and apparatus to restore always-on connectivity during network handover
AssigneeResearch In Motion Limited
InventorsMuhammad Khaledul ISLAM, Jeffrey WIRTANEN, Jean-Philippe CORMIER, Dimitrios PRODANOS
Life of this patent
Estimating the term…
Abstract
A method and apparatus to restore always on connectivity to user equipment, the method having the steps of: monitoring whether the user equipment has transitioned to a network that supports concurrent voice and data; performing, upon the monitoring step detecting the transition, a routing area update; checking whether the user equipment was in a voice call at the time of the transition, and if yes, sending a data packet to the network.
Claims20
A method to restore a suspended packet switched service to user equipment in a network that supports concurrent voice and data, the method comprising the steps of:
- detecting whether the user equipment is transitioning from a first network that does not support concurrent voice and data and in which a packet switched service is suspended to a second network that supports said concurrent voice and data;
- and
- upon detecting that the user equipment is in a voice call during the transition and without reference to routing area or location information, performing a routing area update procedure for restoring the suspended packet switched service.
A user equipment configured to:
- detect whether the user equipment is transitioning from a first network that does not support concurrent voice and data and in which a packet switched service is suspended to a second network that supports said concurrent voice and data;
- and
- upon detecting that the user equipment is in a voice call during the transition and without reference to routing area or location information, perform a routing area update procedure to restore the suspended packet switched service.
Dependencies are inferred from the claim text.