TRANSMITTER, TRANSMITTING METHOD, RECEIVER, AND RECEIVING METHOD
First Claim
1. A transmitting apparatus that transmits a single carrier frequency division multiple access signal, the apparatus comprising:
- a data rearrangement section that acquires a time domain signal by arranging signals showing good error performance or signals not requiring high error performance closer toward ends of a symbol duration of the single carrier frequency division multiple access signal; and
a formation section that forms the single carrier frequency division multiple access signal using the time domain signal acquired in the data rearrangement section.
1 Assignment
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Accused Products
Abstract
A transmitter which alleviates the effect of delayed waves without reducing the transmission efficiency to prevent degradation in overall throughput. In the transmitter for transmitting the SC-FDMA signals, a data realignment section (130) assigns a signal with better error characteristics or a signal requiring no high error characteristics toward the end of a symbol length of the SC-FDMA signal to obtain a time-region signal, and a time/frequency converter section (140) forms the SC-FDMA signal using the time-region signal. This allows the signal to be realigned by selecting the symbol end subject to the effect of delayed waves and the symbol center less subject to the effect of delayed waves out of the SC-FDMA symbol length. As a result, the influence of an error at the symbol end subject to the effect of delayed waves on the overall packet is reduced to prevent degradation in overall throughput.
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Citations
15 Claims
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1. A transmitting apparatus that transmits a single carrier frequency division multiple access signal, the apparatus comprising:
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a data rearrangement section that acquires a time domain signal by arranging signals showing good error performance or signals not requiring high error performance closer toward ends of a symbol duration of the single carrier frequency division multiple access signal; and a formation section that forms the single carrier frequency division multiple access signal using the time domain signal acquired in the data rearrangement section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A receiving apparatus comprising:
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a receiving section that receives a single carrier frequency division multiple access signal of a radio frequency band; a conversion section that converts the single carrier frequency division multiple access signal to a baseband time domain signal; and a demodulation section that demodulates the baseband time domain signal acquired in the conversion section into a signal in which error performance improves higher toward ends of a symbol duration of the single carrier frequency division multiple access signal. - View Dependent Claims (12, 13)
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14. A transmission method for transmitting a single carrier frequency division multiple access signal, comprising the steps of:
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acquiring a time domain signal by arranging signals showing good error performance or signals not requiring high error performance closer toward ends of a symbol duration of the single carrier frequency division multiple access signal; and forming the single carrier frequency division multiple access signal using the time domain signal acquired by the data rearrangement section.
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15. A reception method comprising the steps of:
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receiving a single carrier frequency division multiple access signal of a radio frequency band; converting the single carrier frequency division multiple access signal to a baseband time domain signal; and demodulating the baseband time domain signal acquired into a signal in which error performance improves higher toward ends of a symbol duration of the single carrier frequency division multiple access signal.
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Specification