发明名称 |
Method and apparatus for reducing digital to analog conversion (DAC) bits in frequency division multiple access (FDMA) system |
摘要 |
A method and an apparatus for reducing Digital-to-Analog Conversion (DAC) bits at a transmitter of a Frequency Division Multiple Access (FDMA) system reduces a number of the bits for conversion so as to save power and reduce the cost of operation. The method can include generating a digital signal gain control value and an analog signal gain control value using subcarrier allocation information, a required Signal to Noise Ratio (SNR), and a Peak to Average Power Ratio (PAPR); controlling a gain of a signal input to a digital-to-analog converter using the digital signal gain control value; converting a digital signal of the controlled gain to an analog signal using the digital-to-analog converter; and restoring an original signal by controlling a gain of a signal output from the digital-to-analog converter using the analog signal gain control value.
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申请公布号 |
US8493954(B2) |
申请公布日期 |
2013.07.23 |
申请号 |
US20080337702 |
申请日期 |
2008.12.18 |
申请人 |
KANG JUN-KYU;KANG IN-TAE;LEE JEONG-GIL;LEE BO-RHAM;BAE SANG-MIN;SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KANG JUN-KYU;KANG IN-TAE;LEE JEONG-GIL;LEE BO-RHAM;BAE SANG-MIN |
分类号 |
H04L27/08;H01Q11/12;H04B1/04;H04B1/06;H04B1/44;H04B7/00;H04B7/204;H04B7/208 |
主分类号 |
H04L27/08 |
代理机构 |
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