Patent ID: 7596385
Filing Date: 2009-09-29
Classification: H04L,H04W

Abstract:
1. A method of discovering multi-mode mobile terminals in a heterogeneous network environment, each multi-mode mobile terminal having at least one interface for sending packet data to and/or receiving packet data from a home radio communication network and a foreign radio communication network, said home radio communication network having a different access technology from said foreign radio communication network, each multi-mode mobile terminal performing the steps of: (a) listening to said foreign radio communication network; (b) receiving and storing a foreign network indicator for indicating presence of said foreign radio communication network; and (c) transmitting said foreign network indicator to said home radio communication network; whereby said home radio communication network may store a database comprising a mapping between a multi-mode mobile terminal identity, a home network indicator and a foreign network indicator, to facilitate interworking of said home and foreign radio communication networks.