Multi-antenna system and antenna unit
First Claim
1. A multi-antenna system, comprising a plurality of linearly connected antenna units, and a base station device connected to at least one of the antenna units, wherein:
- each antenna unit is combined with the other antenna units connected in a first or second direction to constitute a multi-antenna, and includes;
a unit value addition unit adding number information of connected antenna unit input from the first direction by 1 unit;
a connected number sending unit sending the number information of connected antenna unit having the 1 unit added thereto as number information of connected antenna unit in the second direction;
a transmission/reception module transmitting/receiving a radio signal;
an analog digital conversion unit convening the radio signal received from the transmission/reception module into reception digital data;
a reception data addition unit adding together input digital data input from the first direction and the reception digital data;
an added digital data sending unit sending the added digital data as input digital data in the second direction;
a digital analog conversion unit convening transmission digital data input from the second direction into a transmission analog signal;
a feeding unit feeding power of the transmission analog signal to the transmission/reception module; and
a transmission data sending unit duplicating the transmission digital data input from the second direction and sending the duplicated data in the first direction; and
the base station device includes;
a computing unit generating a divided value obtained by dividing the input digital data input from the antenna unit by the number information of connected antenna units;
a demodulation unit demodulating a reception signal from the divided value; and
a modulation unit generating the transmission digital data.
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Accused Products
Abstract
A multi-antenna system comprising a plurality of linearly connected antenna units, and a base station device connected to at least one of the antenna units. The antenna units connected in a first direction or a second direction are combined to constitute a multi antenna. The multi-antenna system comprises a unit addition unit that adds one unit to number-of-connected-antenna-units information which is input from the first direction; a number-of-connections sending unit that sends the number-of-connected-antenna-units information, to which one unit has been added as described above, as the number-of-connected-antenna-units information in the second direction; a received data addition unit that adds input digital data, which is input from the first direction, to received digital data; an added-digital-data sending unit that sends the digital data, to which input digital data has been added, as input digital data in the second direction; and a transmission data sending unit that copies the transmission digital data, which is input from the second direction, and sends the copied digital data in the first direction.
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Citations
12 Claims
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1. A multi-antenna system, comprising a plurality of linearly connected antenna units, and a base station device connected to at least one of the antenna units, wherein:
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each antenna unit is combined with the other antenna units connected in a first or second direction to constitute a multi-antenna, and includes; a unit value addition unit adding number information of connected antenna unit input from the first direction by 1 unit; a connected number sending unit sending the number information of connected antenna unit having the 1 unit added thereto as number information of connected antenna unit in the second direction; a transmission/reception module transmitting/receiving a radio signal; an analog digital conversion unit convening the radio signal received from the transmission/reception module into reception digital data; a reception data addition unit adding together input digital data input from the first direction and the reception digital data; an added digital data sending unit sending the added digital data as input digital data in the second direction; a digital analog conversion unit convening transmission digital data input from the second direction into a transmission analog signal; a feeding unit feeding power of the transmission analog signal to the transmission/reception module; and a transmission data sending unit duplicating the transmission digital data input from the second direction and sending the duplicated data in the first direction; and the base station device includes; a computing unit generating a divided value obtained by dividing the input digital data input from the antenna unit by the number information of connected antenna units; a demodulation unit demodulating a reception signal from the divided value; and a modulation unit generating the transmission digital data. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An antenna unit provided in a radio base station device, and combined with another antenna unit connected in a first or second direction to constitute a multi-antenna, comprising:
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a unit value addition unit adding number information of connected antenna unit input from the first direction by 1 unit; a connected number sending unit sending the number information of connected antenna unit having the 1 unit added thereto as number information of connected antenna unit in the second direction; a transmission/reception module transmitting/receiving a radio signal; an analog digital conversion unit converting the radio signal received from the transmission/reception module into reception digital data; a reception data addition unit adding together input digital data input from the first direction and the reception digital data; an added digital data sending unit sending the added digital data as input digital data in the second direction; a digital analog conversion unit converting transmission digital data input from the second direction into a transmission analog signal; a feeding unit feeding power of the transmission analog signal to the transmission/reception module; and a transmission data sending unit duplicating the transmission digital data input from the second direction and sending the duplicated data in the first direction. - View Dependent Claims (9, 10, 11)
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12. A radio base station comprising:
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a unit digitally adding together reception signals of a plurality of antennas; a calculation unit calculating the number of antennas to be added by executing an arithmetic operation according to the digital added value; a computing unit generating a divided value obtained by dividing the reception signals added together by the number information of connected antenna units; and a demodulation unit demodulating a reception signal by using the divided value.
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Specification