Handover of wireless calls between systems supporting...

Details Handover of wireless calls between systems supporting... Handover of wireless calls between systems supporting...

H - Electricity

04

Q

H04Q 7/38 (2006.01) H04Q 7/22 (2006.01)

Patent

CA 2350012

An improved wireless network provides intersystem handoffs between existing circuit wireless systems and packet systems. A packet wireless system is enhanced to provide translation between circuit and packet call models. A Media Gateway translates bearer traffic between formats used in each system. The Media Gateway, a Media Gateway Control Function, and an associated Call State Control Function, cooperate to emulate the behavior of a circuit wireless system, so that when interoperating with conventional circuit systems, the packet system appears to be another circuit wireless system. Where necessary, the Media Gateway, Media Gateway Control Function, and Call State Control Function further cooperate to emulate the functions of an anchor MSC of a circuit wireless system.

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