(19)

(11)

EP 0 909 523 A1

(12)

(43) Date of publication: 21.04.1999 Bulletin 1999/16 (21) Application number: 97934096.0 (22) Date of filing: 10.07.1997

(51) International Patent Classification (IPC):  H04W 88/ 16( . ) H04W 92/ 02( . ) (86) International application number: PCT/US1997/012020 (87) International publication number: WO 1998/002011 (15.01.1998 Gazette 1998/02)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 10.07.1996 US 19960021490P 12.09.1996 US 19960025495P 06.11.1996 US 19960030051P 10.04.1997 US 19970835735 (71) Applicant: American PCS Communications, LLC Bethesda, MD 20817 (US)	(72) Inventors: PURCELL, Thomas, E. Bethesda, MD 20817 (US) BYUN, Hyuk Bethesda, MD 20817 (US) BAL, Nuri Foster City, CA 94404 (US) (74) Representative: Waxweiler, Jean, et al  Dennemeyer & Associates S.A., P.O. Box 1502 1015 Luxembourg 1015 Luxembourg (LU)