Network selection methods and apparatus with multiple home networks
View Patent ↗In one illustrative example, a technique for use in selecting a wireless communication network for a mobile station is described. The mobile station receives a plurality of Mobile Country Code (MCC) and Mobile Network Code (MNC) pairs corresponding to a plurality of available wireless networks. The mobile station selects and registers with an available wireless network from the plurality of available wireless networks that corresponds to a home public land mobile network (HPLMN) of a HPLMN list which identifies a plurality of HPLMNs. If none of the available wireless networks correspond to an HPLMN of the HPLMN list, the mobile station selects and registers with an available network that corresponds to a preferred PLMN of a preferred PLMN list which identifies a plurality of preferred PLMNs.
1. A method of selecting a public land mobile network (PLMN) for a mobile station, the method comprising:
receiving a plurality of Mobile Country Code (MCC) and Mobile Network Code (MNC) pairs corresponding to a plurality of available PLMNs available to the mobile station;
performing a matching procedure which includes comparing a received MCC and MNC pair of an available PLMN with an entry in a home PLMN (HPLMN) list of the mobile station, the HPLMN list identifying a plurality of HPLMNs of the mobile station which are equivalent to a home PLMN of the mobile station, the matching procedure being done until a match is found or all matches fail;
when at least one of the received MCC and MNC pairs matches an entry in the HPLMN list, selecting and registering with an available PLMN that matches a HPLMN of the HPLMN list; and
when none of the received MCC and MNC pairs matches an entry in the HPLMN list, selecting and registering with an available PLMN that corresponds to a preferred PLMN of a preferred PLMN list of the mobile station, the preferred PLMN list identifying a plurality of preferred PLMNs of the mobile station; and
displaying a network name corresponding to the registered PLMN.
2. The method of claim 1 , wherein the HPLMN list includes a MCC and MNC for each HPLMN identified in the HPLMN list.
3. The method of claim 2 , further comprising:
comparing the received MCC and MNC pair of the available PLMN with the plurality of MCC and MNC pairs in the HPLMN list.
4. The method of claim 3 wherein registering with an available PLMN that matches a HPLMN of the HPLMN list comprises registering with the available HPLMN when the corresponding received MCC and MNC pair matches one of the plurality of MCC and MNC pairs in the HPLMN list.
5. The method of claim 1 , wherein the HPLMN list is stored in a Subscriber Identity Module (SIM).
6. The method of claim 1 , wherein the HPLMN list is stored in a memory of the mobile station.
7. The method of claim 1 , further comprising displaying a roaming indicator when the registered PLMN does not match a HPLMN of the HPLMN list.
8. The method of claim 1 , wherein the plurality of HPLMNs identified in the HPLMN list are associated with the same service provider.
9. The method of claim 1 , which is embodied in a computer program product comprising a non-transitory computer readable medium having computer instructions stored therein, wherein the computer instructions are executable by one or more processors of the mobile station for performing the method.
10. The method of claim 1 , wherein the mobile station is configured for communications in accordance with at least one of Global System for Mobile Communications (GSM) and General Packet Radio Service (GPRS) standards, Enhanced Data rates for GSM Evolution (EDGE) and Universal Mobile Telecommunications System (UMTS).
11. The method of claim 1 wherein the plurality of preferred PLMNs identified on the preferred PLMN list are in a priority order.
12. A mobile station, comprising:
a wireless transceiver;
a display;
a controller coupled to the wireless transceiver and the display;
the controller being configured to:
receive a plurality of Mobile Country Code (MCC) and Mobile Network Code (MNC) pairs corresponding to a plurality of available public land mobile networks (PLMNs) available to the mobile station;
perform a matching procedure which includes comparing a received MCC and MNC pair of an available PLMN with an entry in a home PLMN (HPLMN) list of the mobile station, the HPLMN list identifying a plurality of HPLMNs of the mobile station which are equivalent to a home PLMN of the mobile station, the matching procedure being done until a match is found or all matches fail;
when at least one of the received MCC and MNC pairs matches an entry in the HPLMN list, select and register with an available PLMN that matches a HPLMN of the HPLMN list; and
when none of the received MCC and MNC pairs matches an entry in the HPLMN list, select and register with an available PLMN that corresponds to a preferred PLMN of a preferred PLMN list of the mobile station, the preferred PLMN list identifying a plurality of preferred PLMNs of the mobile station; and
display a network name corresponding to the registered PLMN.
13. The mobile station of claim 12 , wherein the HPLMN list includes a MCC and MNC for each HPLMN identified in the HPLMN list.
14. The mobile station of claim 13 , the controller being further configured to:
compare a received MCC and MNC pair of an available PLMN with one or more of the plurality of MCC and MNC pairs in the HPLMN list.
15. The mobile station of claim 14 wherein registering with an available PLMN that matches a HPLMN of the HPLMN list comprises registering with the available PLMN if the corresponding received MCC and MNC pair matches one of the plurality of MCC and MNC pairs in the HPLMN list.
16. The mobile station of claim 12 , the mobile station further comprising a subscriber identity module interface coupled to the controller, the subscriber identity module interface being configured to receive a Subscriber Identity Module (SIM) and wherein the HPLMN list is stored in the SIM.
17. The mobile station of claim 12 , wherein the HPLMN list is stored in a memory of the mobile station.
18. The mobile station of claim 12 , the controller further configured to:
display a roaming indicator if the registered PLMN does not match a HPLMN of the HPLMN list.
19. The mobile station of claim 12 , wherein the plurality of HPLMNs identified in the HPLMN list are associated with the same service provider.
20. The mobile station of claim 12 , wherein the mobile station is configured for communications in accordance with at least one of Global System for Mobile Communications (GSM) and General Packet Radio Service (GPRS) standards, Enhanced Data rates for GSM Evolution (EDGE) and Universal Mobile Telecommunications System (UMTS).
21. The mobile station of claim 12 , wherein the plurality of preferred PLMNs identified on the preferred PLMN list are in a priority order.
22. A communication system, comprising:
one or more mobile stations configured to communicate with one or more public land mobile networks (PLMNs);
a plurality of home PLMNs (HPLMNs) associated with the one or more mobile stations;
each mobile station being configured to:
receive a plurality of Mobile Country Code (MCC) and Mobile Network Code (MNC) pairs corresponding to a plurality of available PLMNs available to the mobile station;
perform a matching procedure which includes comparing a received MCC and MNC pair of an available PLMN with an entry in a HPLMN list of the mobile station, the HPLMN list identifying the plurality of HPLMNs which are equivalent to a home PLMN of the mobile station, the matching procedure being done until a match is found or all matches fail;
when at least one of the received MCC and MNC pairs matches an entry in the HPLMN list, select and register with an available PLMN that matches a HPLMN of the HPLMN list; and
when none of the received MCC and MNC pairs matches an entry in the HPLMN list, select and register with an available PLMN that corresponds to a preferred PLMN of a preferred PLMN list of the mobile station, the preferred PLMN list identifying a plurality of preferred PLMNs of the mobile station; and
display a network name corresponding to the registered PLMN.
23. The communication system of claim 22 , wherein the HPLMN list includes a MCC and MNC for each HPLMN identified in the HPLMN list.
24. The communication system of claim 23 , wherein each mobile station is further configured to:
compare a received MCC and MNC pair of an available PLMN with one or more of the plurality of MCC and MNC pairs in the HPLMN list.
25. The communication system of claim 24 , wherein registering with an available PLMN that matches a HPLMN of the HPLMN list comprises registering with the available PLMN if the corresponding received MCC and MNC pair matches one of the plurality of MCC and MNC pairs in the HPLMN list.
26. The communication system of claim 22 , wherein each mobile station comprises a subscriber identity module interface, the subscriber identity module interface being configured to receive a Subscriber Identity Module (SIM) and wherein the HPLMN list is stored in the SIM.
27. The communication system of claim 22 , wherein the plurality of HPLMNs identified in the HPLMN list are associated with the same service provider.