发明名称 |
Circuit transmission apparatus and transmission method |
摘要 |
A transmission apparatus includes: a multiplier configured to multiply a signal provided on a complex plane by a multiplication coefficient corresponding to a number of transmission sub-carriers; and an inverse fast Fourier transformer configured to perform an inverse fast Fourier transform on the multiplied signal. |
申请公布号 |
US8855235(B2) |
申请公布日期 |
2014.10.07 |
申请号 |
US201012792517 |
申请日期 |
2010.06.02 |
申请人 |
Fujitsu Semiconductor Limited |
发明人 |
Aoki Taku;Kyono Takayoshi;Kitasako Kazuya |
分类号 |
H04L27/36;H04L27/26;H04L5/00;H04L27/34 |
主分类号 |
H04L27/36 |
代理机构 |
Arent Fox LLP |
代理人 |
Arent Fox LLP |
主权项 |
1. A transmission apparatus, comprising:
a multiplier configured to multiply a first in-phase (I) channel signal and a first quadrature (Q) channel signal for a symbol provided on a complex plane by a multiplication coefficient and output a second I channel signal and a second Q channel signal, a transmission power of constellation points of the second I and Q channel signals being obtained in accordance with a comparison between a number of one or more transmission sub-carriers allocated for the symbol and a given number relating to a transmission sub-frame that includes the symbol in a transmission frame; and an inverse fast Fourier transformer configured to perform an inverse fast Fourier transform on the second I and Q channel signals, wherein the given number comprises at least one of: a maximum number among a plurality of numbers, each of the plurality of numbers being a number of one or more transmission sub-carriers that are allocated for each of a plurality of symbols included in the transmission sub-frame; a minimum number among a plurality of numbers, each of the plurality of numbers being a number of one or more transmission sub-carriers that are allocated for each of a plurality of symbols included in the transmission sub-frame; and an average value of a plurality of numbers, each of the plurality of numbers being a number of one or more transmission sub-carriers that are allocated for each of a plurality of symbols included in the transmission sub-frame. |
地址 |
Yokohama JP |