Patent ID: 7920846
Filing Date: 2011-04-05
Classification: H04W

Abstract:
1. A method for implementing access restriction of mobile networks, comprising the steps of: a Mobile Station (MS) inquiring a list of forbidden Public Land Mobile Networks (PLMNs) and access technology identifiers, which is saved by the MS, when the MS selects a PLMN network; the MS determining whether the selected PLMN network and the access technology exist in the list of forbidden PLMNs and access technology identifiers, if they exist, the MS not sending a Location Updating Request to a Mobile Switching Center/Serving GPRS Support Node (MSC/SGSN) of a Core Network; otherwise, the MS sending the Location Updating Request to the MSC/SGSN in order to access to the network; modifying the content of the list of forbidden PLMNs and access technology identifiers, wherein the modifying comprises: