Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-02-20
2007-02-20
Kincaid, Lester G. (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S445000, C455S439000
Reexamination Certificate
active
10444002
ABSTRACT:
A method and system for implementing hard handover in wireless telecommunications network. The method includes connecting a call from user equipment in a first radio coverage area to a first media gateway in a mobile switching center via a first connection point in said first media gateway and further connecting the call from the first media gateway to another party via a second connection point in the first media gateway. Then, in response to the user equipment moving from the first radio coverage area to a second radio coverage area, connecting the call from the user equipment in the second radio coverage area to a second media gateway in the mobile switching center, linking the call from the second media gateway to the first media gateway via a third connection point in the first media gateway, and removing the first termination in said first media gateway. The system includes a radio network having a set of radio network subsystems, wherein each of the radio network subsystems includes a set of base stations and a radio network controller for controlling the base stations, a core network having a set of mobile switching centers, wherein each of the mobile switching centers includes a set of media gateways and a media gateway controller for controlling the media gateways, and a set of terminations within each media gateway for establishing a call path between a wireless subscriber and another party, wherein the terminations include at least one anchor termination in a first media gateway for connecting the call to the other party throughout the duration of the call.
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Picha Marianne
Talmadge Richard N.
Casca Fred A.
Kincaid Lester G.
Lucent Technologies - Inc.
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