Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2009-09-29
2011-10-11
Corsaro, Nick (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S433000, C455S436000, C455S445000, C370S328000, C370S310000, C370S350000
Reexamination Certificate
active
08036709
ABSTRACT:
Disclosed herein is a mobile communication terminal and handover method therefor, which enable handover of a mobile communication terminal that is using a packet data service or is in a dormant state in a mobile communication network in which asynchronous and synchronous networks coexist. In the handover method, if a channel is assigned between a mobile communication terminal and a synchronous mobile communication system in response to a request from an asynchronous mobile communication system as a mobile communication terminal using packet data service in the asynchronous mobile communication system moves into an area of the synchronous mobile communication system, call setup is performed. A node B of the asynchronous communication releases a connection to the mobile communication system and assigns a new mobile IP to the mobile communication terminal, thus providing continuous packet data service to the mobile communication terminal.
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Ihm Jong-Tae
Kim Hyun-Wook
Kim Nam-Gun
Kim Young-Lak
Corsaro Nick
Lowe Hauptman & Ham & Berner, LLP
Sarwar Babar
SK Telecom Co. Ltd.
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