Patent ID: 9226132
Filing Date: 2015-12-29
Classification: H04W

Abstract:
1. A method for optimizing signalling and routing to a first user equipment roaming in a visited network in a packet data communications system comprising at least a home network, the visited network and a relaying network arranged between operators, the relaying network being in common use with multiple operators, the method comprising: providing a routing address to the home network via identification information of the first user equipment; storing location information of the first user equipment to a database external to the home network and to the visited network, the location information being associated with the identification information of the first user equipment and including information relating only to the location information of the user equipment; receiving a message from a second user equipment; recognizing the identification information of the first user equipment in the received message; comparing stored identification information stored in the database with the recognized identification information received in the message; and in an event said comparing determines a match of the stored identification information and the recognized identification information, routing the communication according to the stored location information of the first user equipment directly from the relaying network to the visited network instead of using the routing address obtained by the identification information of the first user equipment.