Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2005-08-11
2009-12-29
Gary, Erika A (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S436000
Reexamination Certificate
active
07640036
ABSTRACT:
The invention relates to a method for performing inter-system handovers in a communication system comprising at least a mobile station, a call state control function, a first and a second call control node, a first and a second media gateway and a radio network node. The handover is achieved by way of connecting a call control node to a call state control function. The call control node allocates a media gateway for the session established. The session media bearers are routed via the media gateway. The call control node acts as an anchor node for the handover. As the mobile station moves to a new cell a media bearer is established to the media gateway from the mobile station via the new cell.
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Gary Erika A
Nokia Siemens Networks Oy
Squire Sanders & Dempsey L.L.P.
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