Patent ID: 11882614
Assignee: CSL DUALCOM LIMITED
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 23:
24. A method of operating a universal integrated circuit card (UICC) for controlling radio communications via a radio communications network to and from a host device in which the UICC is installed in use, the method comprising:
providing access to data relating to the operation of the UICC stored in a data store of the UICC, the data including a plurality of mobile operator network profiles including:
an operational profile comprising radio communications network settings for connecting the host device to a first radio communications network; and
a bootstrap profile comprising radio communications network settings for connecting the host device to a second radio communications network; and
controlling the operation of the UICC using a microprocessor of the UICC and a program comprising a plurality of instructions for configuring operation of the UICC; the controlling step comprising:
connecting the host device to the first radio communications network using the operational profile,
detecting a loss of operational connectivity with the first radio communications network; and
connecting the host device to the second radio communications network using the bootstrap profile, to re-establish radio communications to and from the host device;
starting a cancellation timer, for a predetermined time period when a loss of connection on the first network has been detected; and
deselecting the bootstrap profile and re-select the operational profile once the cancellation timer is completed, and using the operational profile to re-connect to the first radio communications network in order to re-establish radio communications network connectivity between the host device and the first radio communications network.