Apparatus, and associated method, for facilitating network selection at a mobile node utilizing a network selection list maintained thereat
View Patent ↗Apparatus, and an associated method, for facilitating with which network of a group of wireless local area networks that a mobile node attempts to communicate. Network selection utilizes a network selection list. The network selection list is contained at a SIM card, or the like, if the SIM card is constructed in conformity with a 3 GPP (Third Generation Partnership Project) specification. Otherwise, if the card is a legacy card, the network selection list that is used is retrieved from an internal memory element of the mobile node.
1. An apparatus for a mobile node operable selectably to communicate data within a first selected frequency band, the mobile node selectably containing a removable storage element and containing a second storage element, said apparatus comprising:
a determiner configured to determine whether the removable storage element, if contained at the mobile node, is of first selected characteristics; said first selected characteristics being comprised in conformity with a Third Generation Partnership Project (3GPP) communication systems specification;
a downloader adapted to receive indications of determination by said determiner, said downloader configured selectably to download the indications stored at the removable storage element to the mobile node upon determination by said determiner that the removable storage element is of the first characteristics; and
a selector adapted to receive indications of determination made by said determiner, said selector configured to select use of indications stored at the removable storage element or indications stored at the second storage element pursuant to a network communication attempt responsive to determinations made by said determiner.
2. The apparatus of claim 1 wherein the first selected characteristics of the removable storage element further comprises storage-element capability at the removable storage element to store a network selection list and wherein said determiner determines whether the removable storage element exhibits the storage-element capability at the removable storage element to store the network selection list.
3. The apparatus of claim 2 wherein said determiner further determines whether the removable storage element contains the network selection list.
4. The apparatus of claim 3 wherein the network selection list includes at least a first entry and wherein the indications stored at the removable storage element, responsive to which said selector makes selection of at least a first selected network if said determiner determines the removable storage element to contain the network selection list, comprises values representative of the at least the first entry.
5. The apparatus of claim 1 wherein said determiner is configured to determine whether the removable storage element is of the first selected characteristics by sending an interrogation message to the removable storage element and analyzing a response to the interrogation message.
6. The apparatus of claim 1 wherein the removable storage element further includes a flag location, the flag location populated with a first selected value when the removable storage element is of the first selected characteristics and wherein said determiner is configured to determine whether the flag location is populated with the first selected value.
7. The apparatus of claim 6 wherein the second storage element comprises an internal memory that non-releasably forms a portion of the mobile node and wherein said selector is configured to select at least a first selected network responsive to indications stored at the internal memory if said determiner configured to determine the removable storage element not to be of the first selected characteristics.
8. The apparatus of claim 1 wherein said determiner further is configured to determine whether the second storage element contains a network selection list, at least when said determiner determines the first removable storage element is not of the first selected characteristics.
9. The apparatus of claim 1 wherein the mobile node is powered by a power supply switchingly connected to the mobile node, and wherein said determiner is further configured to determine whether the removable storage element is of the first selected characteristics upon powering-up of the mobile node pursuant to connection of the mobile node to the power supply.
10. The apparatus of claim 1 wherein the indications stored at the removable storage element downloaded by said downloader to the mobile node are stored at the second storage element, available for subsequent use by said selector.
11. The apparatus of claim 1 wherein each network of a group of networks is identified by a Service Set Identifier and wherein the indications stored at the removable storage element, when of the first selected characteristics, identify the Service Set Identifier of at least one network of the group of networks.
12. The apparatus of claim 1 further comprising an indication updater and wherein the indications, if any, stored at the second storage element are selectably updatable by said indication updater.
13. The apparatus of claim 12 wherein indications, if any, stored at the removable storage element are also selectably updatable by said indication updater.
14. A method for operating a mobile node operable selectably to communicate data within a first selected frequency band, the mobile node selectably containing a removable storage element and containing a second storage element, said method comprising the operations of:
determining whether the removable storage element, if contained at the mobile node, is of first selected characteristics, said first selected characteristics being comprised in conformity with a Third Generation Partnership Project (3GPP) communication systems specification;
downloading the indications stored at the removable storage element to the mobile node responsive to determination during said operation of determining that the removable storage element is of the first selected characteristics; and
selecting use of indications stored at the removable storage element or use of indications stored at the second storage element pursuant to a network communication attempt responsive to determination made during said operation of determining.
15. The method of claim 14 wherein said operation of determining further comprises interrogating the removable storage element to determine whether the removable storage element is of the first characteristics.
16. The method of claim 15 further comprising the operation of setting a flag location formed at the removable storage element with a first selected value when the removable storage element is of the first selected characteristics, and wherein said operation of interrogating comprises determining whether the flag location is populated with the first selected value.
17. The method of claim 14 wherein the indications downloaded to the mobile node during said operation of downloading are stored at the second storage element.
18. The method of claim 17 further comprising the operation of subsequently accessing the indications downloaded to, and stored at, the second storage element.