Patent ID: 8761805
Filing Date: 2014-06-24
Classification: H04W

Abstract:
1. A method of operating a core network node of a communications system, comprising: maintaining, in the core network node, history information configured to provide a log of location information for a wireless terminal and using the history information to detect whether the wireless terminal is in a location update toggling scenario where location updates by the wireless terminal involving a set of locations exceed a prescribed limit, wherein the history information serves as a log of sites visited by a wireless terminal, and wherein maintaining the history information comprises configuring the history information to comprise an integer N number of records, each record comprising plural fields, wherein record j includes a site identifier field and a time field, the site field indicating a site involved in area update j, and wherein the time field is configured to facilitate a determination of an amount of time the wireless terminal has spent in the site identified for the record j.