Patent ID: 6438370
Filing Date: 2002-08-20
Classification: H04W

Abstract:
A method for providing a notification to a Mobile Station (MS) for a location update of the MS in a mobile telecommunication system wherein the MS is controlled by one of a plurality of Radio Network Controllers (RNCs), which comprising:a) serving the MS by a first RNC; b) in response to the MS having moved from a first area to a second area, wherein service in the first area is provided via a first set of Base Stations (BSs) controlled by the first RNC and service in the second area is provided via a second set of BSs controlled by a second RNC, providing the service to the MS via the second set of BSs while keeping the control of the connection with the first RNC, and monitoring a predefined criteria set for RNC relocation; c) in response to having met the predefined criteria, moving the control of the connection to the second RNC, the plurality of RNCs being connected to a Core Network (CN) which has a plurality of CN entities including one active CN entity, so that control of the connection is changed from the first RNC to the second RNC; and d) notifying the MS that the control of the connection has been changed from the first RNC to the second RNC and that the location update of the MS should be performed.