Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-02-13
2007-02-13
Anderson, Matthew (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S465000, C455S433000, C455S436000, C455S560000
Reexamination Certificate
active
10603965
ABSTRACT:
To reduce change on a cellular network side required at the time of utilizing a cellular network by way of an IP network.A radio terminal110puts a location registration message for a cellular network100on an IP packet, and sends the message to an access point102. This IP packet is transferred to a control proxy server131. The control proxy server131stores a correspondence between identification information on a radio terminal and an IP address based on a location registration request. If necessary, the location registration request is converted into the location registration message in compliance with a standard of the cellular network100. The location registration message is transferred to an MSC/VLR121via a gateway130. As the gateway130looks like an ordinary base station to the MSC/VLR121and an ordinary location registration message is usable, any change on the cellular network side is not necessary.
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Fujioka Masanobu
Oda Toshikane
Anderson Matthew
Dao Minh
Telefonaktiebolaget LM Ericsson (publ)
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