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US 5,347,535 AGranted
CDMA communication system
AssigneeKokusai Denshin Denwa Kabushiki Kaisha
InventorsYoshio Karasawa, Hisato Iwai
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AssigneeKokusai Denshin Denwa Kabushiki Kaisha
InventorsYoshio Karasawa, Hisato Iwai
Estimating the term…
A CDMA communication system using a spreading code has a plurality of mobile stations and at least one base station. The mobile stations and the base station are provided with respective receiving sections, each of which has a path diversity function for reducing multipath fading. The base station includes an array antenna having a plurality of integrated antenna elements spaced by a distance substantially equal to one to several wavelengths from each other so as to produce a space diversity effect. A plurality of delay devices are coupled with the respective antenna elements, for applying time delays to signals which pass through the respective antenna elements. The time delay are different from each other by a one symbol period of the spreading code or more.
A CDMA communication system using spreading codes, said system having a plurality of mobile stations and at least one base station, said mobile stations and said base station provided with respective receiving sections each of which has a path diversity function for reducing multipath fading, said base station comprising:
A base station for a CDMA communication system using spreading codes, said system having a plurality of mobile stations, said base station provided with a receiving section which has a path diversity function for reducing multipath fading, comprising:
An antenna section in a base station of a CDMA communication system using spreading codes, said system having a plurality of mobile stations, said mobile stations and said base station provided with respective receiving sections each of which has a path diversity function for reducing multipath fading, comprising:
Dependencies are inferred from the claim text.