Multicarrier Communication Apparatus and Multicarrier Communication Method
First Claim
1. A multicarrier communication apparatus that is a multicarrier signal transmitting-side multicarrier communication apparatus, being a communication apparatus that performs radio transmission of a multicarrier signal to a receiving-side communication apparatus that performs weighting by multiplying a plurality of subcarriers composing one subcarrier group by a same reception weight, wherein said multicarrier communication apparatus comprises:
- a transmission weight generation section that generates a transmission weight per subcarrier based on said reception weight per subcarrier group and channel information per subcarrier;
a weighting section that performs weighting by multiplying a generated transmission weight by a corresponding subcarrier; and
a transmitting section that performs radio transmission of a weighted multicarrier signal.
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Abstract
A multicarrier communication apparatus and the like wherein the arithmetic amount required for calculating a reception weight by which a multicarrier signal is to be multiplied is suppressed, while the reception characteristic for the multicarrier signal is improved. In the apparatus, a subcarrier transmission weight generating part (513) generates a transmission weight of each subcarrier, based on channel information of each subcarrier received froma channel information generating part (511) and a reception weight of each subcarrier group received from a subcarrier group reception weight generating part (512). The subcarrier transmission weight generating part (513) inputs the generated transmission weights of the respective subcarriers to the corresponding ones of multipliers (522).
87 Citations
18 Claims
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1. A multicarrier communication apparatus that is a multicarrier signal transmitting-side multicarrier communication apparatus, being a communication apparatus that performs radio transmission of a multicarrier signal to a receiving-side communication apparatus that performs weighting by multiplying a plurality of subcarriers composing one subcarrier group by a same reception weight, wherein said multicarrier communication apparatus comprises:
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a transmission weight generation section that generates a transmission weight per subcarrier based on said reception weight per subcarrier group and channel information per subcarrier;
a weighting section that performs weighting by multiplying a generated transmission weight by a corresponding subcarrier; and
a transmitting section that performs radio transmission of a weighted multicarrier signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A multicarrier communication apparatus that is a multicarrier signal receiving-side multicarrier communication apparatus comprising:
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a receiving section that receives a multicarrier signal weighted by multiplying each subcarrier by a transmission weight; and
a weighting section that performs weighting for a received multicarrier signal by multiplying each subcarrier group composed of a plurality of subcarriers by one reception weight. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A multicarrier communication method comprising:
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a channel information generation step of generating channel information per subcarrier in a received multicarrier signal based on said multicarrier signal;
a reception weight generation step of generating a reception weight per subcarrier group composed of a plurality of subcarriers based on generated channel information per subcarrier;
a transmission weight generation step of generating a transmission weight per subcarrier based on a generated reception weight per subcarrier group and generated channel information per subcarrier;
a transmission weighting step of performing weighting for a multicarrier signal by multiplying a generated transmission weight by a corresponding subcarrier;
a transmitting step of performing radio transmission of a weighted multicarrier signal;
a receiving step of receiving a multicarrier signal transmitted as a radio signal; and
a reception weighting step of performing weighting for a received multicarrier signal by multiplying a plurality of subcarriers composing one subcarrier group by a same reception weight.
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Specification