发明名称 |
RADIO TRANSMITTING DEVICE AND RADIO TRANSMITTING METHOD |
摘要 |
The amount of distortion of the output signal increases due to a difference in delay times in a plurality of paths in a radio transmitting device transmitting RF signals in a plurality of bands, therefore, a radio transmitting device according to an exemplary aspect of the present invention includes: a multi-band RF signal generator making each of a plurality of input baseband signals carried by a carrier wave with each of different frequencies, and outputting the carrier wave as a radio frequency signal; a power amplifier amplifying and outputting the radio frequency signal; a distortion compensation control signal generating unit applying a distortion compensating function, which compensates a distortion characteristic of the power amplifier, to the each of the plurality of input baseband signals; and a transmitter delay correction unit correcting a difference in delays which the plurality of input baseband signals receive respectively in the multi-band RF signal generator. |
申请公布号 |
US2016013820(A1) |
申请公布日期 |
2016.01.14 |
申请号 |
US201414772425 |
申请日期 |
2014.03.04 |
申请人 |
NEC CORPORATION |
发明人 |
YAMANOUCHI Shingo |
分类号 |
H04B1/04;H04L25/08 |
主分类号 |
H04B1/04 |
代理机构 |
|
代理人 |
|
主权项 |
1. A radio transmitting device, comprising:
a multi-band RF signal generator making each of a plurality of input baseband signals carried by a carrier wave with each of different frequencies, and outputting the carrier wave as a radio frequency signal; a power amplifier amplifying and outputting the radio frequency signal; a distortion compensation control signal generating unit applying a distortion compensating function, which compensates a distortion characteristic of the power amplifier, to the each of the plurality of input baseband signals; and a transmitter delay correction unit correcting a difference in delays which the plurality of input baseband signals receive respectively in the multi-band RF signal generator. |
地址 |
Tokyo JP |