Radio communication device,radio communication method, and radio base station device
First Claim
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1. A radio communication apparatus that arranges a plurality of antennas, assigns predetermined sector areas to the respective antennas and selects an antenna corresponding to a sector area where a radio terminal apparatus, a transmission/reception target, is located to carry out transmission/reception, comprising:
- a plurality of antennas each having directivity of a predetermined angle arranged in such a way that said sector areas assigned to those antennas partially overlap with each other between mutually neighboring antennas;
a reception antenna selection section that selects, when a signal arrives from said overlapped sector areas, the mutually neighboring antennas that cover said overlapped sector areas as the reception antennas; and
a combining section that combines received signals obtained from the respective selected antennas through spatial diversity combining.
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Abstract
The present invention arranges antennas in such a way that sector areas (AR0 to AR5) assigned to their respective antennas (AN0 to AN5) partially overlap with each other between neighboring antennas and carries out transmission/reception using the two antennas corresponding to the overlapped section.
57 Citations
11 Claims
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1. A radio communication apparatus that arranges a plurality of antennas, assigns predetermined sector areas to the respective antennas and selects an antenna corresponding to a sector area where a radio terminal apparatus, a transmission/reception target, is located to carry out transmission/reception, comprising:
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a plurality of antennas each having directivity of a predetermined angle arranged in such a way that said sector areas assigned to those antennas partially overlap with each other between mutually neighboring antennas;
a reception antenna selection section that selects, when a signal arrives from said overlapped sector areas, the mutually neighboring antennas that cover said overlapped sector areas as the reception antennas; and
a combining section that combines received signals obtained from the respective selected antennas through spatial diversity combining. - View Dependent Claims (2, 3, 7)
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4. A radio communication apparatus that arranges a plurality of antennas, assigns predetermined sector areas to the respective antennas and selects an antenna corresponding to a sector area where a radio terminal apparatus, a transmission/reception target, is located to carry out transmission/reception, comprising:
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a plurality of antennas each having directivity of a predetermined angle arranged in such a way that said sector areas assigned to those antennas partially overlap with each other between mutually neighboring antennas; and
a transmission antenna selection section that selects, when a signal is transmitted to said overlapped sector areas, the mutually neighboring antennas that cover said overlapped sector areas as the transmission antennas. - View Dependent Claims (5, 6)
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8. A radio communication method that arranges a plurality of antennas and assigns predetermined sector areas to the respective antennas and selects an antenna corresponding to a sector area where a radio terminal apparatus, a transmission/reception target, is located to carry out transmission/reception, comprising the steps of:
arranging said plurality of antennas each having directivity of a predetermined angle in such a way that said sector areas assigned to those antennas partially overlap with each other between mutually neighboring antennas, selecting, when a signal arrives from said overlapped sector areas, the mutually neighboring antennas that cover said overlapped sector areas as the reception antennas and combining received signals obtained from the respective selected antennas through spatial diversity combining. - View Dependent Claims (9)
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10. A radio communication method that arranges a plurality of antennas, assigns predetermined sector areas to the respective antennas and selects an antenna corresponding to a sector area where a radio terminal apparatus, a transmission/reception target, is located to carry out transmission/reception, comprising the steps of:
arranging said plurality of antennas each having directivity of a predetermined angle in such a way that said sector areas assigned to those antennas partially overlap with each other between mutually neighboring antennas and selecting, when a signal is transmitted to said overlapped sector areas, the mutually neighboring antennas that cover said overlapped sector areas as the transmission antennas. - View Dependent Claims (11)
Specification