Markport Limited

Augustine Collins

Aidan Dillon

Joseph Cunningham

Neillus O'Shea

Neillus O'shea

A roaming interworking gateway has a modular unit associated with an IS.41 system, a modular unit associated with a FSM system, and a translation function. The translation function accesses a database which stores subscriber data upon registration of a subscriber in a roamed mobile system. Each modular unit comprises an authentication center to perform authentication before registration. The RIG is implemented on a distributed hardware structure having a high-speed network to which are connected network access processors (NAP), database servers, and an operations and maintenance processor. Each modular unit resides on a single network access processor. The translation function has a module residing on the NAP of each associated modular unit.

Roaming interworking gateway for mobile telecommunications systems

A HLR ( ) has a bus ( ) which interconnects a NAP layer ( ), a DBS layer ( ) and an OMP layer ( ). All accesses to a memory database ( ) are through a single channel&mdash;the associated DBS ( ) with associated databases ( ). Each NAP ( ) has a directory service ( ) identifying the active DB ( ) for each item of subscriber data. Each DBS ( ) has a shadow DBS ( ) to which it automatically writes for real time synchronization.

Growing community of inventors

Dublin, Ireland

Augustine Collins