Transmission method and transmission apparatus
First Claim
1. A transmission apparatus comprising:
- a plurality of antennas;
a transmission scheme determination processor configured to select one of either a first transmission scheme of transmitting a plurality of signals including a first amount of data in a frame, respectively, from the plurality of antennas, and a second transmission scheme of transmitting a plurality of signals including a second greater amount of data in a frame, respectively, from the plurality of antennas;
a modulation scheme selection processor configured to select a modulation scheme among a plurality of modulation schemes;
a control processor configured to control the transmission scheme determination processor and the modulation scheme selection processor to change the transmission scheme less frequently than the modulation scheme; and
a transmitter configured to transmit from the plurality of antennas a signal generated based on the selected transmission scheme and the selected modulation scheme.
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0 Petitions
Accused Products
Abstract
A transmission apparatus includes a plurality of antennas and a transmission scheme determination processor that selects one of either a first transmission scheme of transmitting a plurality of signals including a first amount of data in a frame, respectively, from the plurality of antennas, and a second transmission scheme of transmitting a plurality of signals including a second greater amount of data in a frame, respectively, from the plurality of antennas. The apparatus includes a modulation scheme selection processor that selects a modulation scheme among a plurality of modulation schemes and a control processor that controls the transmission scheme determination processor and the modulation scheme selection processor to change the transmission scheme less frequently than the modulation scheme. A transmitter transmits from the plurality of antennas a signal generated based on the selected transmission scheme and the selected modulation scheme.
19 Citations
11 Claims
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1. A transmission apparatus comprising:
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a plurality of antennas; a transmission scheme determination processor configured to select one of either a first transmission scheme of transmitting a plurality of signals including a first amount of data in a frame, respectively, from the plurality of antennas, and a second transmission scheme of transmitting a plurality of signals including a second greater amount of data in a frame, respectively, from the plurality of antennas; a modulation scheme selection processor configured to select a modulation scheme among a plurality of modulation schemes; a control processor configured to control the transmission scheme determination processor and the modulation scheme selection processor to change the transmission scheme less frequently than the modulation scheme; and a transmitter configured to transmit from the plurality of antennas a signal generated based on the selected transmission scheme and the selected modulation scheme. - View Dependent Claims (2, 3, 4)
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5. A transmission apparatus having multiple antennas comprising:
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a transmission and modulation scheme selection processor configured to select (i) a transmission scheme for transmitting a plurality of transmission signals from among a plurality of transmission schemes according to a number of different data streams used for a transmission, and (ii) a modulation scheme from among a plurality of modulation schemes according to the number of different data streams used for a transmission, where different data streams contain different data symbols; a modulator configured to modulate the plurality of transmission signals using the selected modulation scheme and to output a plurality of modulated transmission signals; and a transmitter configured to transmit the plurality of modulated transmission signals using the number of different data streams used for the transmission among the multiple antennas, wherein the transmission and modulation scheme selector processor is configured to; select, when a first number of different data streams is used for the transmission, a modulating scheme in which a maximum value of a number of modulated M-ary index of the selected modulation scheme is smaller than a maximum value of a number of modulated M-ary index of the modulation scheme selected when a second number of multiple different data streams less than the first number of multiple different data streams is used for the transmission, and select, when the second number of multiple different data streams is used for the transmission, a modulating scheme having a same maximum value of a number of modulated M-ary index for every selected transmission scheme. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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Specification