Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-03-27
2007-03-27
Feild, Joseph (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S437000, C455S438000, C455S439000, C455S440000, C455S442000, C370S328000, C370S329000, C370S331000
Reexamination Certificate
active
10836619
ABSTRACT:
The invention is related to a controller of a communication system that includes a module for exchanging messages indicating a traffic channel change between communication system units before hard handover, a module for changing a downlink traffic channel, a module for detecting a communication system unit on a handover target channel, a module for changing an uplink traffic channel, and a module for completing a hard handover process.
REFERENCES:
patent: 5711003 (1998-01-01), Dupuy
patent: 6078813 (2000-06-01), Ljung
patent: 6122512 (2000-09-01), Bodin
patent: 6393003 (2002-05-01), Lee
patent: 6628631 (2003-09-01), Mazawa et al.
patent: 6628632 (2003-09-01), Dolan
patent: 6973111 (2005-12-01), Yamashita et al.
patent: WO 01/24558 (2001-04-01), None
patent: WO 01/58086 (2001-08-01), None
Ajibade-Akonai Olumide
Feild Joseph
Nokia Corporation
Squire Sanders & Dempsey L.L.P.
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