Patent ID: 6421539
Filing Date: 2002-07-16
Classification: H04W

Abstract:
A method for registering the location of a mobile station after performing inter-MSC (mobile switching center) soft handoff in a cellular system of the type having a plurality of base transceiver stations (BTSs) and a plurality of the MSCs, said method comprising the steps of:(a) performing an inter-MSC soft handoff according to the movement of said mobile station from a first BTS controlled by a first MSC to a second BTSs controlled by a second MSC; (b) synchronizing said mobile station with a said second BTS, wherein said second BTS having the strongest pilot signal; (c) ordering said mobile station to register a location of said mobile station by said synchronized second BTS; and, (d) performing a location registration to said second MSC controlling said synchronized second BTS with the registered location of said mobile station registered in step (c), wherein said inter-MSC soft handoff is performed by using a router, said router connecting said first BTS and said second BTS.