METHODS OF MANAGING INTERWORKING BETWEEN A VISIBLE 3GPP NETWORK HAVING 3GPP AND WLAN ACCESS NETWORKS AND A HOME 3GPP NETWORK FOR A MOBILE STATION THROUGH AND SGSN NODE AND TTG GATEWAY CORRESPONDING

摘要

A method is dedicated to managing interworking between a home 3GPP network (RD) and a visited 3GPP network (RV), having a 3GPP access network (RAV) and a WLAN access network (RW), for a hybrid mobile station (MS) roaming with respect to the home 3GPP network (RD). This method consists, in the case of transmission by the mobile station (MS) to the visited WLAN access network (RW) of a request to establish a communication session with an equipment accessible via a GGSN (NG) node. its 3GPP home network (RD), i) to determine a communication identifier of a tunnel termination gateway (TTG) located in the visited 3GPP network (RV), and ii) to establish a tunnel between the network of Visited WLAN access (RW) and tunnel termination gateway (TTG), then iii) to determine a GGSN (NG) node's communication identifier, and iv) to tunnel between tunnel termination gateway (TTG) and the GGSN (NG) node.