US 6,856,609 B2 · Mobile station for CDMA communication system and method for communication of the mobile station

Abstract

If the strength of the signal transmitted from a remaining base station is larger than that from the active base station, the search control unit 103 shifts to the confirmation mode, where the remaining base station is designated as a confirmation target remaining base station. Then, if the strength of the signal transmitted from the confirmation target remaining base station is larger than that from the active base station, a counter is incremented. If the counter value becomes a predetermined value R, a hand-off is performed to the remaining base station. In case that the strength of the signal transmitted from the confirmation target remaining base station becomes not larger than that from the active base station, the confirmation mode is terminated at that point to return to the normal mode.

Claims17

Dependent claims

A mobile station for a CDMA communication system comprising:

a detecting means for detecting strengths of signals transmitted from a plurality of base stations;
a finding means for finding a first base station transmitting a signal having a larger signal strength than a signal from a second base station with which the mobile station is currently in communication;
a judging means for judging whether the found base station by the finding means is one of neighbor base stations located in the vicinity of the second base station or one of remaining base stations other than the neighbor base stations;
and
a hand-off control means for, if the found base station is one of the remaining base stations, designating the remaining base station as a confirmation target remaining base station and temporarily suspending a hand-off to the confirmation target remaining base station.

2 more elements

A method for communication used in a mobile station for a CDMA communication system comprising:

a detecting step for detecting strengths of signals transmitted from a plurality of base stations;
a finding step for finding a first base station transmitting a signal having a larger signal strength than a signal from a second base station with which the mobile station is currently in communication;
a judging step for judging whether the found base station in the finding step is one of neighbor base stations located in the vicinity of the second base station or one of remaining base stations other than the neighbor base stations;
and
a hand-off control step for, if the found base station is one of the remaining base stations, designating the remaining base station as a confirmation target remaining base station and temporarily suspending a hand-off to the confirmation target remaining base station.

2 more elements

Dependencies are inferred from the claim text.

Mobile station for CDMA communication system and method for communication of the mobile station

Life of this patent

Mobile station for CDMA communication system and method for communication of the mobile station

Life of this patent

Abstract

Claims17