EP 1034683 A1 20000913 - METHOD AND APPARATUS FOR PERFORMING HANDOFF IN A CDMA SYSTEM THROUGH THE USE OF REPEATERS
Title (en)
METHOD AND APPARATUS FOR PERFORMING HANDOFF IN A CDMA SYSTEM THROUGH THE USE OF REPEATERS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR DURCHFÜRUNG VON WEITERREICHEN IN EINEM CDMA-SYSTEM UNTER VERWENDUNG VON RELAISSTELLEN
Title (fr)
PROCEDE ET APPAREIL D'EXECUTION DE TRANSFERTS DANS UN SYSTEME AMCR AU MOYEN DE REPETEURS
Publication
Application
Priority
- US 9825219 W 19981125
- US 97929297 A 19971126
Abstract (en)
[origin: WO9927747A1] A method and apparatus for providing handoff between two communication systems. The systems can be CDMA systems operating at different frequencies or systems employing different technologies. In the first system, a base station (4) is configured to provide communications to two or more sectors, with at least one sector assigned to a corresponding repeater (8) which provides coverage overlapping that of both systems. As the remote station (6) moves into the coverage area of the repeater (8), the pilot signal of the repeater (8) is identified, measured and sent to the first system. If the measured pilot signal is above a predetermined add threshold, the repeater (8) is added to the active set of the remote station. The first system can handoff the remote station (6) to the second system: (1) upon initiation of a soft handoff by the base station of the first system; (2) if the pilot signal strength of the repeater (8), as measured by the remote station (6), exceeds a predetermined handoff threshold; (3) if the base station (4) of the first system is dropped from the active set of the remote station (6); (4) if the repeater of the first system is dropped from the active set of the remote station (6); or (5) if the base station (4) and repeater (8) of the first system are dropped from the active set of the remote station (6).
IPC 1-7
IPC 8 full level
H04B 7/26 (2006.01); H04W 36/14 (2009.01); H04W 16/26 (2009.01)
CPC (source: EP KR US)
H04B 7/2606 (2013.01 - EP KR); H04W 36/0079 (2018.08 - EP US); H04W 36/08 (2013.01 - EP KR US); H04W 36/302 (2023.05 - EP KR US); H04W 16/26 (2013.01 - EP KR)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
WO 9927747 A1 19990603; AU 1607399 A 19990615; AU 759370 B2 20030410; BR 9815435 A 20010911; CA 2311623 A1 19990603; CN 100456872 C 20090128; CN 1302518 A 20010704; EP 1034683 A1 20000913; FI 20001211 A 20000718; ID 27894 A 20010503; IL 136273 A0 20010520; JP 2001524793 A 20011204; KR 20010032440 A 20010425; NO 20002671 D0 20000525; NO 20002671 L 20000718; NO 327951 B1 20091026; RU 2000116264 A 20020527
DOCDB simple family (application)
US 9825219 W 19981125; AU 1607399 A 19981125; BR 9815435 A 19981125; CA 2311623 A 19981125; CN 98811560 A 19981125; EP 98960489 A 19981125; FI 20001211 A 20000519; ID 20001012 A 19981125; IL 13627398 A 19981125; JP 2000522757 A 19981125; KR 20007005681 A 20000525; NO 20002671 A 20000525; RU 2000116264 A 19981125