(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