Persisting private mobile wireless network preference for mobile wireless network devices on private networks

1. A method, carried out by a private mobile wireless terminal comprising a subscriber identification module applet, for persisting a connectivity preference for a home mobile wireless network that is a private mobile wireless network, wherein the private mobile wireless terminal operates in a mobile wireless environment comprising a primarily mobile network provider including a sponsored roaming application server (SRAS), and wherein the method comprises:

performing a network scan to identify candidate mobile wireless networks within operating range of the private mobile network device and then connecting to the private mobile wireless network that is indicated as the recent/preferred mobile network for mobile wireless connections;

reporting the established connection, to the private mobile wireless network, to the SRAS;

losing the established connection as a result of the private mobile wireless network being in an out of service state;

performing a supplemental wireless network scan to identify candidate mobile wireless networks within operating range of the private mobile network device and then establishing a new connection to an alternative secondary mobile wireless network that is indicated as an acceptable replacement for the private mobile wireless network;

receiving a trigger message issued by the SRAS that invokes the SIM applet to perform a series of operations to restore a persisted connectivity preference for connecting to the private mobile wireless network after service is restored following a service outage of the private mobile wireless network.

2. The method of claim 1 , wherein the series of operations comprises:

disabling a SIM profile of the private mobile wireless device;

clearing a last-registered entry on the SIM profile;

enabling the SIM profile;

obtaining, by invoking a re-scan of available wireless networks, the private mobile wireless network PLMN identifier as a highest priority PLMN for establishing a mobile wireless connection; and

re-connecting to the private mobile wireless network based on the obtained private mobile wireless network PLMN.

3. The method of claim 2 , wherein the series of operations further comprises, after the re-connecting, the further operation of:

storing the private mobile wireless network PLMN as the Registered PLMN entry on the SIM of the private mobile device.

4. The method of claim 2 , wherein the last-registered entry on the SIM profile comprises a registered public land mobile network (RPLMN) entry.

5. The method of claim 2 , wherein the last-registered entry on the SIM profile comprises an equivalent public land mobile network (EPLMN) entry.

6. The method of claim 1 , wherein the series of operations comprises:

disabling an active SIM operational profile of the private mobile wireless device;

enabling a dummy SIM operational SIM profile resulting in clearing a last-registered entry on the SIM profile;

disabling the dummy SIM operational profile;

enabling the active SIM operational profile;

obtaining, by invoking a re-scan of available wireless networks, the private mobile wireless network PLMN identifier as a highest priority PLMN for establishing a mobile wireless connection; and

re-connecting to the private mobile wireless network based on the obtained private mobile wireless network PLMN.

7. The method of claim 6 wherein the series of operations further comprises, after the re-connecting, the further operation of:

storing the private mobile wireless network PLMN as the Registered PLMN entry on the SIM of the private mobile device.

8. The method of claim 6 , wherein the last-registered entry on the SIM profile comprises a registered public land mobile network (RPLMN) entry.

9. The method of claim 6 , wherein the last-registered entry on the SIM profile comprises an equivalent public land mobile network (EPLMN) entry.

10. A private mobile wireless network device comprising:

a processor; and

a non-transitory computer-readable medium including computer-executable instructions that, when executed by the processor, facilitate carrying out a method, carried out by the private mobile wireless terminal comprising a subscriber identification module applet, for persisting a connectivity preference for a home mobile wireless network that is a private mobile wireless network, wherein the private mobile wireless terminal operates in a mobile wireless environment comprising a primarily mobile network provider including a sponsored roaming application server (SRAS), and wherein the method comprises:

performing a network scan to identify candidate mobile wireless networks within operating range of the private mobile network device and then connecting to the private mobile wireless network that is indicated as the recent/preferred mobile network for mobile wireless connections;

reporting the established connection, to the private mobile wireless network, to the SRAS;

losing the established connection as a result of the private mobile wireless network being in an out of service state;

performing a supplemental wireless network scan to identify candidate mobile wireless networks within operating range of the private mobile network device and then establishing a new connection to an alternative secondary mobile wireless network that is indicated as an acceptable replacement for the private mobile wireless network;

receiving a trigger message issued by the SRAS that invokes the SIM applet to perform a series of operations to restore a persisted connectivity preference for connecting to the private mobile wireless network after service is restored following a service outage of the private mobile wireless network.

11. The private mobile wireless network device of claim 10 , wherein the series of operations comprises:

disabling a SIM profile of the private mobile wireless device;

clearing a last-registered (RPLMN/EPLMN) entry on the SIM profile;

enabling the SIM profile;

obtaining, by invoking a re-scan of available wireless networks, the private mobile wireless network PLMN identifier as a highest priority PLMN for establishing a mobile wireless connection; and

re-connecting to the private mobile wireless network based on the obtained private mobile wireless network PLMN.

12. The private mobile wireless network device of claim 11 , wherein the series of operations further comprises, after the re-connecting, the further operation of:

storing the private mobile wireless network PLMN as the Registered PLMN entry on the SIM of the private mobile device.

13. The private mobile wireless network device of claim 11 , wherein the last-registered entry on the SIM profile comprises a registered public land mobile network (RPLMN) entry.

14. The private mobile wireless network device of claim 11 , wherein the last-registered entry on the SIM profile comprises an equivalent public land mobile network (EPLMN) entry.

15. The private mobile wireless network device of claim 11 , wherein the series of operations comprises:

disabling an active SIM operational profile of the private mobile wireless device;

enabling a dummy SIM operational SIM profile resulting in clearing a last-registered (RPLMN) entry on the SIM profile;

disabling the dummy SIM operational profile;

enabling the active SIM operational profile;

obtaining, by invoking a re-scan of available wireless networks, the private mobile wireless network PLMN identifier as a highest priority PLMN for establishing a mobile wireless connection; and

re-connecting to the private mobile wireless network based on the obtained private mobile wireless network PLMN.

16. The private mobile wireless network device of claim 15 , wherein the series of operations further comprises, after the re-connecting, the further operation of:

storing the private mobile wireless network PLMN as the Registered PLMN entry on the SIM of the private mobile device.

17. The private mobile wireless network device of claim 15 , wherein the last-registered entry on the SIM profile comprises a registered public land mobile network (RPLMN) entry.

18. The private mobile wireless network device of claim 15 , wherein the last-registered entry on the SIM profile comprises an equivalent public land mobile network (EPLMN) entry.