Patent ID: 9432928
Filing Date: 2016-08-30
CPC Classification: H04W

Claim Text:
1. A method comprising: wirelessly receiving into a base station from a mobile terminal a request for the base station to serve the mobile terminal, wherein the mobile terminal subscribes to a public land mobile network (PLMN) and the request specifies an identifier of the PLMN (PLMNid), wherein the base station provides service on multiple frequency bands, and wherein wirelessly receiving the request from the mobile terminal comprises receiving the request in a particular frequency band of the multiple frequency bands; determining, by the base station, the PLMNid specified by the request; making a determination, by the base station, of whether the determined PLMNid is allowed, wherein the base station maintains an access control list respectively for each of the frequency bands, including a particular access control list for the particular band, wherein each access control list is selected from the group consisting of a PLMNid whitelist and a PLMNid blacklist, and wherein making the determination by the base station of whether the determined PLMNid is allowed comprises (a) selecting, by the base station, the particular access control list based on the request having arrived on the particular frequency band and (b) referring, by the base station, to the selected access control list to make the determination; and granting, by the base station, the request to serve the mobile terminal only if the determination is that the determined PLMNid is allowed.