Patent ID: 6751478
Filing Date: 2004-06-15
Classification: H04W

Abstract:
A mobile-service switch comprising:a plurality of distributed call processing means for performing call processing, as distributed processing according to a load distribution scheme, by associating with a plurality of radio base stations, on a call from an incoming line formed between the plurality of distributed call processing means and a gateway switch office and to be terminated at one of mobile stations that can be located in wireless zones individually formed under the radio base stations; path forming means for forming a path between said gateway switch office and said plurality of radio base stations based on a procedure of said call processing by said plurality of distributed call processing means, and wherein in response to an inquiry made by said home location register having location information of said mobile stations as database, made about a mobile station which is to be a destination party of said call, said plurality of distributed call processing means judges whether or not termination at the mobile station is possible, determines one, of said plurality of distributed call processing means, which is to perform call set-up in conformity with channel control over a wireless zone where said mobile station visits, and notifies the determined distributed call processing means and the judgment result to one of said home location register and said gateway switch office.