Patent ID: 9363786
Filing Date: 2016-06-07
CPC Classification: H04W

Claim Text:
1. A method of tracking user terminals in a mobile communication network, the method comprising: determining, at a tracking node, that a user terminal is located in a first tracking area; storing data associated with the first tracking area, the data associated with the first tracking area including a number of observations of all user terminals at the first tracking area for a plurality of time intervals; receiving a page response from the user terminal located in one of the first tracking area and a second tracking area; in an event that the user terminal remains located at the first tracking area, updating the data to include a number of page responses received at the first tracking area after a first time interval, and in an event that the use terminal is located at the second tracking area, updating the data to include a number of page responses received at the second tracking area after the first time interval; storing additional data associated with one or more other tracking areas in which the user terminal has previously been located, the additional data including a number of observations of all user terminals in each of the one or more other tracking areas for a plurality of time intervals; and following receipt of a page response from the user terminal located in one of the first tracking area and the second tracking area, in the event that the user terminal is located at the first tracking area, updating the additional data to include the number of page responses received at the first tracking area after a first time interval, and in event that the user terminal is located at the second tracking area, updating the additional data to include the number of page responses received at the second tracking area after the first time interval.