RECEPTION APPARATUS AND METHOD FOR DEMODULATING SIGNAL IN WIRELESS AV SYSTEM

The present specification relates to a reception apparatus and method for demodulating a signal in a wireless AV system. The reception apparatus estimates a transmission signal on the basis of an MMSE weight matrix. The reception apparatus divides the estimated transmission signal for respective rec...

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Main Authors SONG, Jaewook, WOO, Kyungsoo, HUH, Joongkwan, OH, Yoonsuk, LEE, Kyuin
Format Patent
LanguageEnglish
French
Korean
Published 05.08.2021
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Summary:The present specification relates to a reception apparatus and method for demodulating a signal in a wireless AV system. The reception apparatus estimates a transmission signal on the basis of an MMSE weight matrix. The reception apparatus divides the estimated transmission signal for respective reception antennas and performs an IFFT. The reception apparatus estimates and compensates for phase noise for the respective reception antennas on the basis of the signal for which the IFFT has been performed. The reception apparatus demodulates the estimated and compensated signal for respective streams. La présente spécification concerne un appareil de réception et un procédé de démodulation d'un signal dans un système audiovisuel sans fil. L'appareil de réception estime un signal de transmission sur la base d'une matrice de poids d'erreur quadratique moyenne minimale (MMSE). L'appareil de réception divise le signal de transmission estimé pour des antennes de réception respectives et effectue une transformée de Fourier rapide inversée (IFFT). L'appareil de réception estime et compense le bruit de phase pour les antennes de réception respectives sur la base du signal pour lequel l'IFFT a été effectuée. L'appareil de réception démodule le signal estimé et compensé pour des flux respectifs. 본 명세서는 무선 AV 시스템에서 신호를 복조하는 수신장치 및 방법에 관한 것이다. 수신장치는 MMSE 가중치 행렬을 기반으로 전송 신호를 추정한다. 수신장치는 추정된 전송 신호를 수신 안테나 별로 분해하여 IFFT를 수행한다. 수신장치는 IFFT가 수행된 신호를 기반으로 상기 수신 안테나 별 위상 잡음을 추정 및 보상한다. 수신장치는 추정 및 보상된 신호를 스트림 별로 복조한다.
Bibliography:Application Number: WO2020KR01497