Patent ID: 6195551
Filing Date: 2001-02-27
Classification: H04W,Y02D

Abstract:
An idle handoff controlling method in a cellular mobile communication system, said method comprising the steps of:a) searching a first pilot channel having the strongest strength transmitted from one of a plurality of base stations as an active base station and measuring a strength of the first pilot channel;b) calculating a variable threshold value based on the first pilot channel strength measured in step a);c) monitoring a paging channel having a neighbor list of the active base station having a plurality of neighbor base stations in synchronization with the first pilot channel;d) measuring a strength of a second pilot signal transmitted from one of the plurality of neighbor base stations included on the neighbor list;e) subtracting the first pilot channel strength from the second pilot channel strength to obtain a strength difference;f) judging whether the strength difference is greater than the variable threshold value; andg) controlling performance of an idle handoff according to the judgement result of step f).