(19)
(11) EP 1 759 544 A1

(12)

(43) Date of publication:
07.03.2007 Bulletin 2007/10

(21) Application number: 05762190.6

(22) Date of filing: 20.06.2005
(51) International Patent Classification (IPC): 
H04Q 7/28(2006.01)
(86) International application number:
PCT/US2005/022118
(87) International publication number:
WO 2006/002266 (05.01.2006 Gazette 2006/01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

(30) Priority: 21.06.2004 US 581968 P
31.05.2005 US 686147 P

(71) Applicant: Qualcomm Incorporated
San Diego CA 92121 (US)

(72) Inventors:
  • ROSEN, Eric C.
    Solana Beach, CA 92075 (US)
  • GILL, Harleen K.
    San Diego, CA 92130 (US)
  • ANANTHANARAYANAN, Arulmozhi Kasi
    San Diego, CA 92130 (US)
  • RAZDAN, Ashu
    San Diego, CA 92126 (US)

(74) Representative: Gates, Marie Christina Esther et al
Tomkins & Co. 5 Dartmouth Road Leeson Park
IRL-Dublin 6
IRL-Dublin 6 (IE)

   


(54) METHOD FOR USING A SIGNALING CHANNEL TO SET UP A CALL REQUEST FOR A PUSH TO TALK (PTT) COMMUNICATION ON A WIRELESS COMMUNICATION NETWORK