Transmission apparatus and transmission method
First Claim
1. A transmission apparatus of a multi-input multi-output (MIMO) communication scheme that simultaneously transmits different data from a plurality of antennas, the transmission apparatus comprising:
- an encoding section that collectively performs encoding processing on first data to be transmitted from each of the plurality of antennas;
a modulating section that performs modulation processing on the encoded first data according to each corresponding antenna;
a transmitting section that transmits the modulated first data from each corresponding antenna; and
a transmission controlling section that controls transmission of the modulated first data to be transmitted from each of the plurality of antennas, wherein;
when a data retransmission relating to the first data is performed, the transmission controlling section controls the data retransmission such that (i) not all of the first data previously transmitted from the plurality of antennas is included in the data retransmission and (ii) data included in the data retransmission excludes any part of the first data previously transmitted from at least one of the plurality of antennas.
3 Assignments
0 Petitions
Accused Products
Abstract
There is provided a transmission device capable of preventing increase of retransmission information or encoding redundant bit and improving a throughput in a MIMO communication method. In this device, an encoding unit (130) subjects data transmitted from a first transmission antenna (110) and a second transmission antenna (120) each formed by a plurality of antennas, to encoding processing all at once. Modulation units (113, 123) modulate the data encoded by the encoding unit (130) for each of the first and the second transmission antennas (110, 120). Transmission units (115, 125) process the modulated data so that it can be transmitted from the corresponding first and the second antennas (110, 120). A transmission control unit (160) performs transmission control of the data transmitted from the respective antennas (110, 120). When retransmitting data, the transmission control unit (160) retransmits the data transmitted from a transmission antenna having a smaller number of antennas than the first and the second antennas (110, 120).
40 Citations
13 Claims
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1. A transmission apparatus of a multi-input multi-output (MIMO) communication scheme that simultaneously transmits different data from a plurality of antennas, the transmission apparatus comprising:
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an encoding section that collectively performs encoding processing on first data to be transmitted from each of the plurality of antennas; a modulating section that performs modulation processing on the encoded first data according to each corresponding antenna; a transmitting section that transmits the modulated first data from each corresponding antenna; and a transmission controlling section that controls transmission of the modulated first data to be transmitted from each of the plurality of antennas, wherein; when a data retransmission relating to the first data is performed, the transmission controlling section controls the data retransmission such that (i) not all of the first data previously transmitted from the plurality of antennas is included in the data retransmission and (ii) data included in the data retransmission excludes any part of the first data previously transmitted from at least one of the plurality of antennas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A transmission method of a multi-input multi-output (MIMO) communication scheme that simultaneously transmits different data from a plurality of antennas, the transmission method comprising:
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collectively performing encoding processing on first data to be transmitted from each of the plurality of antennas; performing modulation processing on the encoded first data according to each corresponding antenna; transmitting the modulated first data from each corresponding antenna; and controlling transmission of the modulated first data to be transmitted from each of the plurality of antennas and a data retransmission relating to the first data such that (i) not all of the first data previously transmitted from the plurality of antennas is included in the data retransmission and (ii) data included in the data retransmission excludes any part of the first data previously transmitted from at least one of the plurality of antennas.
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12. A transmission apparatus of a multi-input multi-output (MIMO) communication scheme that simultaneously transmits data from a plurality of antennas, the transmission apparatus comprising:
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an encoding section that encodes first data to be transmitted from the plurality of antennas; a transmission controlling section that distributes the encoded first data to the plurality of antennas; and a transmitting section that transmits the distributed first data from each corresponding antenna, wherein; when a data retransmission relating to the first data is performed, the transmission controlling section controls the data retransmission such that data included in the data retransmission (i) includes a part of the distributed data previously transmitted from some antennas of the plurality of antennas and (ii) excludes a part of the distributed data previously transmitted from other antennas of the plurality of antennas.
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13. A transmission method of a multi-input multi-output (MIMO) communication scheme that simultaneously transmits data from a plurality of antennas, the transmission method comprising:
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encoding first data to be transmitted from the plurality of antennas; distributing the encoded first data to the plurality of antennas; transmitting the distributed first data from each corresponding antenna; and performing a data retransmission relating to the first data such that data included in the data retransmission (i) includes a part of the distributed data previously transmitted from some antennas of the plurality of antennas and (ii) excludes a part of the distributed data previously transmitted from other antennas of the plurality of antennas.
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Specification