US Patent Application No: 2001/0053,684

Number of patents in Portfolio can not be more than 2000

METHOD AND SYSTEM FOR IDENTIFYING AN ILLEGAL TERMINAL IN A CELLULAR RADIO SYSTEM

ALSO PUBLISHED AS: 6377791

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A cellular radio system comprises terminals (401, 402) arranged to transmit a specific message of a predetermined form at least two times (408, 409; 413, 414), so that there is a predetermined time-out between the two successive messages of said form. A message of said form, which is received from a terminal, is attached (503, 507, 509) to a code representing the terminal in order to identify an illegal terminal. Such a terminal is regarded as identified (513, 514) for which the time between the reception of the two successive messages of said form attached to the code representing the terminal is shorter than said time-out.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NOKIA MOBILE PHONES LTD.ESPOO1781
NOKIA SIEMENS NETWORKS OYESPOO1098

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pirila, Hannu Littoinen, FI 19 250

Patent Citation Ranking

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LG ELECTRONICS INC. (2)
7,383,035 Method of furnishing illegal mobile equipment user information 0 2003
7,505,758 Apparatus and method for setting use restriction of mobile communication terminal 3 2005
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
8,010,083 Detection of cloned identifiers in communication systems 0 2007
 
Sprint Communications Company L.P. (1)
8,380,165 Identifying a cloned mobile device in a communications network 0 2010
 
TECHNOCOM CORPORATION (1)
7,142,873 System and method for calibration of a wireless network 6 2005
 
TELECOM ITALIA LAB S.P.A. (1)
7,046,990 Method for detecting access to controlled areas and related system 6 2000
 
ZTE CORPORATION (1)
8,744,437 Method for realizing user accessibility and multi-mode terminal 0 2009

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