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 3GPP (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. Apparatus for a mobile node to facilitate selection of a first selected network of a group of networks with which to attempt to communicate, the mobile node connected to a removable storage element that, if of first selected characteristics, identifies the group of networks and includes a network selection list stored in the removable storage element, and the mobile node containing a second storage element, said apparatus comprising:
a determiner embodied at the mobile node, said determiner for determining whether the removable storage element, selectably connected to the mobile node, is of the first selected characteristics, otherwise, for determining whether a network selection list is stored in the second storage element;
a selector adapted to receive indications of determinations made by said determiner, said selector for selecting the first selected network of the group of networks with which to attempt to communicate, selection made by said selector responsive to indications and the network selection list stored at the removable storage element if determinations made by said determiner indicate the removable storage element is of the first selected characteristics and, otherwise, responsive to indications and the network selection list stored at the second storage element if determinations made by said determiner indicate that a network selection list is stored in the second storage element; and
a downloader, adapted to receive indications of determinations made by said determiner, said downloader configured selectably to download and store indications of the group of networks stored at the removable storage element to the second storage element, available subsequently thereat responsive to determinations by said determiner that the removable storage element is of the first selected characteristics.
2. The apparatus of claim 1 wherein the network selection list, if stored at the removable storage element, includes at least a first entry.
3. The apparatus of claim 1 wherein said determiner determines 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.
4. 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 determines whether the flag location is populated with the first selected value.
5. The apparatus of claim 4 wherein the second storage element comprises an internal memory that non-releasably forms a portion of the mobile node and wherein said selector selects the first selected network responsive to indications stored at the internal memory when said determiner determines the removable storage element not to be of the first selected characteristics.
6. 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 determines 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.
7. The apparatus of claim 1 wherein each network of the 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.
8. 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.
9. The apparatus of claim 1 further comprising an indication updater and wherein the indications, if any, stored at the removable storage element are selectably updatable by said indication updater.
10. A method for a mobile node to facilitate selection of a first selected network of a group of networks with which to attempt to communicate, the mobile node containing a removable storage element that, if of first selected characteristics, identifies the group of networks and includes a network selection list stored in the removable storage element, and the mobile node containing a second storage element, said method comprising the operations of:
determining, at the mobile node, whether the removable storage element, selectably connected to the mobile node, is of the first selected characteristics, otherwise, determining whether a network selection list is stored in the second storage element;
selecting the first selected network of the group of networks with which to attempt to communicate, selection made during said operation of selecting responsive to indications and the network selection list stored at the removable storage element if determinations made during said operation of determining indicate the removable storage element to be of the first selected characteristics and, otherwise, responsive to indications and the network selection list stored at the second storage element if determinations made during said operation of determining indicate a network selection list is stored in the second storage element; and
downloading and storing indications stored at the removable storage element to the second storage element, available subsequent thereat, responsive to determinations by said determiner that the removable storage element is of the first selected characteristics.
11. The method of claim 10 wherein said operation of determining comprises interrogating the removable storage element to determine whether the removable storage element is of the first selected characteristics.
12. The method of claim 11 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.