METHOD AND SYSTEM FOR INTERSYSTEM SOFT HANDOFF

摘要

Inter-system soft handoff support is described using, as an example, a modified set of ANSI41 signaling techniques in conjunction with a packet data transport mechanism (e.g., TCP/IP or ATM) to carry the user data between systems. An anchor system sets up the soft handoff by indicating, among other things, one or more sets of user plane attributes available to interface the anchor system with a target system(s). Quality of service levels are also indicated and may be negociated between systems.