Telecommunications – Radiotelephone system – Security or fraud prevention
Reexamination Certificate
2006-02-14
2006-02-14
Banks-Harold, Marsha D. (Department: 2686)
Telecommunications
Radiotelephone system
Security or fraud prevention
C380S247000, C340S005800
Reexamination Certificate
active
06999751
ABSTRACT:
A method (FIG.3), corresponding call screening unit, and base station (FIG.2), suitable for detecting cloned communication units (111or113), are operable to receive a first response message and a second response message (305); determine whether identification fields (ESNs, MINs) corresponding to the response messages are equivalent (307); and if so, assess whether message contents or message properties corresponding to the response messages are not correlated (311) thus indicating the response messages are from different communication units; and when not correlated, decide that one of the response messages corresponds to a cloned communication unit (313).
REFERENCES:
patent: 5467382 (1995-11-01), Schorman
patent: 5765107 (1998-06-01), Korowajczuk
patent: 5953652 (1999-09-01), Amin et al.
patent: 6295446 (2001-09-01), Rocha
patent: 6370373 (2002-04-01), Gerth et al.
patent: 6377791 (2002-04-01), Pirila
patent: 6466777 (2002-10-01), Urita
patent: 6594498 (2003-07-01), McKenna et al.
patent: 6718178 (2004-04-01), Sladek et al.
“Upper Layer (Layer 3) Signaling Standard for CDMA2000 Spread Spectrum Systems Release 0”; 3rd G Partnership Project 2; 3GPP2.S0005-0; Ver.3.0; Jun. 15, 2000; pp. 3-123-3-132.
“Medium Access Control (MAC) Standard for CDMA2000 Spread Spectrum Systems Release 0-Addendum 2”; 3rd G Partnership Project 2; 3GPP2.S0003-0; Ver.3.0; Jun. 15, 2001; pp. 2-25-2-30.
“Signaling Link Access Control (LAC) Specification for CDMA2000 Spread Spectrum Systems Release 0”; 3rdG Partnership Project 2; 3GPP2.S0004-0; Ver.3.0;Jun. 15, 2000; pp. 2-27-2-30.
Keels Wayne A.
Thorson Dean E.
Banks-Harold Marsha D.
Ly Nghi H.
Motorola Inc.
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