Abstract: A process (100) may be implemented subsequent to facilitating (101), for a first end user, a transmission of at least one data packet for a first multicast transmission using an infrastructure-supplied source address. This process can generally comprise using (104) that infrastructure-supplied source address to facilitate transmission of at least one data packet for a second end user for a second multicast transmission.

Abstract: A GGSN receives a request associated with a session creation for a mobile entity. The GGSN begins a process (a four-way handshake) for obtaining network access configuration parameters for the mobile entity and responds to the request prior to the completion of the four-way handshake. The GGSN then completes the four-way handshake. A GGSN creates an association between a first IP address and a first mobile entity and thereafter requests an IP address for a second mobile entity. In response thereto, the GGSN receives the first IP address, which the GGSN declines for the second mobile entity and reserves for the first mobile entity. The GGSN requests an IP address for the second mobile entity a second time and receives a second IP address that is different from the first IP address.

Abstract: A mobile station (303) provides seamless mobility across multicast domains for communicating with a multicast group (109) in a telecommunication system (300) that includes a home domain (102) and a visited domain (302). The mobile station (303) includes a local source address (324) and a home address (322). The mobile station (303) also includes a domain detector (305) for detecting a current domain of the mobile station (303), a comparator (307) for comparing the current domain of the mobile station with a previous domain of the mobile station (303) to generate a comparison result; and a multicast mode switch (326) coupled to the comparator (307) for switching between the local source address (324) and the home address (322) to select a source address for communicating with the multicast group (109) as a function of the comparison result.

Abstract: A system and method in a radio access network (RAN) (100) consisting of wireless access points (APs) and (RR4, RR5, RR6, and RR7) mobile stations (MSs) (102) that proactively sets up a multicast distribution tree (101). An indication is detected at a destination AP (RR6). The indication is that an MS (102) operating at an initial AP (RR5) is a member of a multicast group. The indication is via a device operating in the RAN (100). Responsive to detecting the indicating, a multicast distribution tree (101) is established for the multicast group that includes the destination AP (RR6).

Abstract: A method for providing seamless mobility to a first device (102) in a system (100) comprising at least the first device, a second device (104/106) and a routing infrastructure (108) is disclosed herein. The routing infrastructure comprises a plurality of routers used to communicate information between the first device and the second device. In operation, the first device receives an anycast address and injects an updated route to the anycast address into the routing infrastructure each time the first device roams to a different subnet. The first device sends a binding update to the second device informing the second device of the anycast address, after which, the first device receives information from the second device via the anycast address regardless of a location of the first device in the system.