Radio receiving apparatus and method
First Claim
1. A radio receiving apparatus comprising:
- a plurality of antennas;
a plurality of radio units adjusting gains of received signals output from the antennas, and outputting the adjusted received signals, respectively;
a plurality of converters converting the adjusted received signals into a plurality of digital signals;
a selector device which selects several of the digital signals, a combination of the selected digital signals exhibiting a good receiving characteristic;
a controller which determines the gains and outputs a single control signal included in information of the determined gains to certain radio units, the certain radio units being included in the radio units and connected to certain converters of the converters which output digital signals included in the selected combination;
a weight calculator which calculates a weight for each of the selected digital signals to enhance the receiving characteristic if the controller outputs the single control signal;
a synthesizer which synthesizes, into a synthetic digital signal, a plurality of digital signals obtained by multiplying each of the selected digital signals by the weight; and
a demodulator which demodulates the synthetic digital signal.
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Abstract
Radio receiving apparatus comprises antennas, radio units adjusting gains of received signals, and outputting the adjusted received signals, respectively, converters converting the adjusted received signals into digital signals, selector device which selects several of the digital signals, combination of the selected digital signals exhibiting good receiving characteristic, controller which determines the gains and outputs single control signal included in information of the determined gains to certain radio units, the certain radio units being included in the radio units and connected to certain converters of the converters which output digital signals included in the selected combination, weight calculator which calculates weight for each of the selected digital signals to enhance the receiving characteristic if the controller outputs the single control signal, synthesizer which synthesizes, into synthetic digital signal, digital signals obtained by multiplying each of the selected digital signals by the weight, and demodulator which demodulates the synthetic digital signal.
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Citations
20 Claims
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1. A radio receiving apparatus comprising:
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a plurality of antennas;
a plurality of radio units adjusting gains of received signals output from the antennas, and outputting the adjusted received signals, respectively;
a plurality of converters converting the adjusted received signals into a plurality of digital signals;
a selector device which selects several of the digital signals, a combination of the selected digital signals exhibiting a good receiving characteristic;
a controller which determines the gains and outputs a single control signal included in information of the determined gains to certain radio units, the certain radio units being included in the radio units and connected to certain converters of the converters which output digital signals included in the selected combination;
a weight calculator which calculates a weight for each of the selected digital signals to enhance the receiving characteristic if the controller outputs the single control signal;
a synthesizer which synthesizes, into a synthetic digital signal, a plurality of digital signals obtained by multiplying each of the selected digital signals by the weight; and
a demodulator which demodulates the synthetic digital signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A radio receiving apparatus comprising:
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n (n;
a natural number not less than
2) adjustment units configured to adjust each of gains of n signals received via n antennas, and output the received signals, respectively;
n converters which convert the n received signals into n digital signals;
a selector device which selects several of the n digital signals a combination of the selected digital signals exhibiting a good receiving characteristic;
a controller which determines the gains and outputs a single control signal included in information of the determined gains to certain adjustment units, the certain adjustment units being included in the adjustment units and connected to certain converters of the converters which output digital signals included in the selected combination;
a weight calculator which calculates a weight for each of the selected digital signals to enhance the receiving characteristic if the controller outputs the single control signal;
a synthesizer which synthesizes, into a synthetic digital signal, a plurality of digital signals obtained by multiplying each of the digital signals by the weight; and
a demodulator which demodulates the synthetic digital signal. - View Dependent Claims (16, 17, 18, 19)
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20. A radio receiving method comprising:
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adjusting each of gains of n (n;
a natural number not less than
2) signals received via n antennas, and outputting the received signals, respectively;
converting the n received signals into n digital signals;
selecting several of the n digital signals a combination of the selected digital signals exhibiting a good receiving characteristic;
determining the gains and outputting a single control signal included in information of the determined gains of the received signals which are converted into digital signals included in the selected combination;
calculating a weight for each of the selected digital signals to enhance the receiving characteristic if the single control signal is output;
synthesizing, into a synthetic digital signal, a plurality of digital signals obtained by multiplying each of the digital signals by the weight; and
demodulating the synthetic digital signal.
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Specification