MIMO ADC Hybrid Beamforming Apparatus and Method with Resolution Adaptive ADC for MIMO System

MIMO ADC Hybrid Beamforming Apparatus and Method with Resolution Adaptive ADC for MIMO System

The present invention provides a beamforming device for a MIMO system having an RA-ADC and a method thereof, which can allow an analog beamformer to select the number of RA-ADCs corresponding to the number of user terminals transmitting signals regardless of the number of signal paths and transfer a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HWANG IN CHEOL, JEONG JIN KYO, LEE HAK KEON, HONG DAE SIK
Format: Patent
Sprache:eng ; kor
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Beschreibung
Zusammenfassung:The present invention provides a beamforming device for a MIMO system having an RA-ADC and a method thereof, which can allow an analog beamformer to select the number of RA-ADCs corresponding to the number of user terminals transmitting signals regardless of the number of signal paths and transfer a power-concentrated receiving signal to the selected RA-ADCs so as to allow the selected RA-ADCs to have high resolution, thereby minimizing quantization errors while maximally maintaining a power gain of the receiving signal. 본 발명은 아날로그 빔포머가 신호 경로의 수에 무관하게 신호를 전송하는 사용자 단말의 수에 대응하는 개수의 RA-ADC를 선택하고, 선택된 RA-ADC에 파워가 집중된 수신 신호를 전달하여, 선택된 RA-ADC가 높은 분해능을 가질수 있도록 함으로써, 수신 신호의 파워 이득을 최대한 유지하면서 양자화 오차를 최소화시킬 수 있는 RA-ADC를 갖는 MIMO 시스템을 위한 빔포밍 장치 및 방법을 제공한다.