Title:
OFDMA方式の無線通信装置、該無線通信装置による非線形歪み補償のための学習信号生成方法
Document Type and Number:
Japanese Patent JP4793599
Kind Code:
B2
Abstract:
An OFDMA radio communication apparatus of the present invention includes a radio transmitter that amplifies a transmission signal by a amplifier; and a distortion compensation unit that generates distortion compensation coefficient data that serve to compensate for non-linear distortion of the amplifier based on a learning signal and inputs a transmission signal obtained by multiplying an OFDMA signal by the distortion compensation coefficient data to the radio transmitter. The device further includes an MAC unit that generates the learning signal and inserts it as a burst signal in a burst region of OFDMA frames to which a burst signal can he allocated so as to generate OFDMA frame data; and a PHY unit that converts the OFDMA frame data into the OFDMA signal of a frequency domain based on a transmission mode of an OFDMA that has been set for the device and inputs it to the distortion compensation unit.
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Inventors:
Kitajima
Application Number:
JP2008294285A
Publication Date:
October 12, 2011
Filing Date:
November 18, 2008
Export Citation:
Assignee:
NEC
International Classes:
H04J11/00; H04B1/04
Domestic Patent References:
| JP2007295356A | ||||
| JP11074806A |
Attorney, Agent or Firm:
Akio Miyazaki
Ishibashi Masayuki
Masaaki Ogata
Ishibashi Masayuki
Masaaki Ogata