TRANSMITTER AND TRANSMISSION METHOD
First Claim
1. A transmitter comprising:
- a signal generation unit generating transmission signals by performing a signal processing, including coding and modulation, on data to be transmitted;
a plurality of amplifiers amplifying the transmission signals by amplification characteristics having different saturated output powers, respectively;
a plurality of antennas outputting the transmission signals amplified by the plurality of amplifiers, respectively;
a switch connecting the plurality of amplifiers and the plurality of antennas in pairs; and
a transmission control unit performing a test to determine antennas which are possible to output transmission signals each satisfying a predetermined reception quality from among the plurality of antennas, recognizing candidates of amplifiers connected to the antennas determined by the test, and selecting a specified number of amplifiers from among the candidates,wherein the transmission control unit sets higher ranks to candidates having the amplification characteristics of lower saturated output powers, applies the candidates given the higher ranks to the specified number of amplifiers, and performs a transmission processing using the specified number of amplifiers and the antennas connected to the specified number of amplifiers, respectively.
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Accused Products
Abstract
A transmitter performs a test to determine antennas which are possible to output transmission signals each satisfying a predetermined reception quality out of among a plurality of antennas. The transmitter recognizes candidates of amplifiers connected to the antennas determined by the test from among a plurality of amplifiers amplifying transmission signals by amplification characteristics having different saturated output powers, respectively. The transmitter sets higher ranks to candidates having amplification characteristic of lower saturated output powers, and selects a specified number of amplifiers from among the candidates given the higher ranks. The transmitter performs a transmission processing on the transmission signals using the selected specified number of amplifiers and the antennas connected to the specified number of amplifiers, respectively.
46 Citations
10 Claims
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1. A transmitter comprising:
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a signal generation unit generating transmission signals by performing a signal processing, including coding and modulation, on data to be transmitted; a plurality of amplifiers amplifying the transmission signals by amplification characteristics having different saturated output powers, respectively; a plurality of antennas outputting the transmission signals amplified by the plurality of amplifiers, respectively; a switch connecting the plurality of amplifiers and the plurality of antennas in pairs; and a transmission control unit performing a test to determine antennas which are possible to output transmission signals each satisfying a predetermined reception quality from among the plurality of antennas, recognizing candidates of amplifiers connected to the antennas determined by the test, and selecting a specified number of amplifiers from among the candidates, wherein the transmission control unit sets higher ranks to candidates having the amplification characteristics of lower saturated output powers, applies the candidates given the higher ranks to the specified number of amplifiers, and performs a transmission processing using the specified number of amplifiers and the antennas connected to the specified number of amplifiers, respectively. - View Dependent Claims (2, 3, 4, 5)
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6. A transmission method comprising:
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performing a test to determine antennas which are possible to output transmission signals each satisfying a predetermined reception quality out of a plurality of antennas; recognizing candidates of amplifiers connected to the antennas determined by the test from among a plurality of amplifiers amplifying transmission signals by amplification characteristics having different saturated output powers, respectively; setting higher ranks to candidates having amplification characteristic of lower saturated output powers, and selecting a specified number of amplifiers from among the candidates given the higher ranks; generating transmission signals by performing a signal processing, including coding and modulation, on data to be transmitted; and performing a transmission processing on the generated transmission signals using the selected specified number of amplifiers and the antennas connected to the specified number of amplifiers, respectively. - View Dependent Claims (7, 8, 9, 10)
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Specification