(19)
(11)
EP 1 000 520 A1
(12)
(43)
Date of publication:
17.05.2000
Bulletin 2000/20
(21)
Application number:
98938232.0
(22)
Date of filing:
31.07.1998
(51)
International Patent Classification (IPC)
7
:
H04Q
7/38
(86)
International application number:
PCT/US9815/995
(87)
International publication number:
WO 9907/178
(
11.02.1999
Gazette 1999/06)
(84)
Designated Contracting States:
DE FR GB
(30)
Priority:
01.08.1997
US 54440 P
(71)
Applicant:
QUALCOMM Incorporated
San Diego, CA 92121-1714 (US)
(72)
Inventors:
BROYLES, Samuel, K.
Jamestown, CO 80455 (US)
QUICK, Roy, F., Jr.
San Diego, CA 92107 (US)
(74)
Representative:
Wagner, Karl H., Dipl.-Ing. et al
Wagner & Geyer,Patentanwälte,Gewürzmühlstrasse 5
80538 München
80538 München (DE)
(54)
SYSTEM AND METHOD FOR PREVENTING REPLAY ATTACKS IN WIRELESS COMMUNICATION