发明名称 |
APPARATUS FOR COMPENSATING FOR DISTORTION OF TRANSMITTER ARRAY IN RADIO COMMUNICATION SYSTEM AND METHOD FOR CONTROLLING THE SAME |
摘要 |
Provided is a method in which a Digital Pre-Distorter (DPD) performs digital pre-distortion on a received In-phase (I) signal, a received Quadrature-phase (Q) signal, a feedback I signal, and a feedback Q signal; a mixer mixes a signal output from the DPD with a frequency signal output from an oscillator; each of n phase shifters phase-shifts a signal output from the mixer according to a preset beamforming pattern; each of n Power Amplifiers (PAs) amplifies a signal output from an associated phase shifter according to a gain, the PAs connected to the associated phase shifter on a one-to-one basis; each of n envelope detectors detects an envelope signal from a signal output from an associated PA, the envelope detector connected to the associated PA on a one-to-one basis; and a control unit determines whether the n PAs operate normally, using the envelope signals output from the n envelope detectors. |
申请公布号 |
US2013163696(A1) |
申请公布日期 |
2013.06.27 |
申请号 |
US201213726901 |
申请日期 |
2012.12.26 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD.;AND TECHNOLOGY (KAIST) KOREA ADVANCED INSTITUTE OF SCIENCE;KOREA ADVANCED INSITUTE OF SCIENCE AND TECHNOLOGY(KAIST);SAMSUNG ELECTRONICS CO. LTD. |
发明人 |
SON MI-HYUN;KIM YONG-HOON;YOON BYUNG-TAE;ZEONG JONG-WOOK;LEE DONG-GEUN;LEE JAE-HUN;HONG SONG-CHEOL |
分类号 |
H03F1/32;H04B1/04 |
主分类号 |
H03F1/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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