Abstract: A chip of a LED, comprising: a current blocking layer including a first current blocking layer grown along an epitaxial layer and a plurality of second current blocking layers disposed at one end of the first current blocking layer at intervals, the first current blocking layer gradually widens along a direction away from the second current blocking layers; a transparent conductive layer including a first transparent conductive layer and a second transparent conductive layer grown on the epitaxial layer, the first transparent conductive layer is grown on the current blocking layer and at least partially overlapped with the second current blocking layers; a metal finger electrode having a width gradually narrowed from the first end to the second end thereof and smaller than the width of the first current blocking layer, and the second current blocking layers are distributed around the first end of the metal finger electrode.

Abstract: An apparatus and method for down-link multiple-antenna transmission in a wireless communication system is provided wherein a base station section comprises: a down-link specific physical channel unit, a second common pilot channel unit, a beam weighting unit of common pilot channels, a multiplexing and summing unit, a down-link specific physical channel weighting unit, a specific physical channel and second common pilot channel multiplexing unit, an antenna array unit, a multiple-beam weight vector set unit, up-link specific physical channels, and a feedback bit information unit; and a service cell section or mobile station section comprises: an antenna unit, a channel evaluating unit, a beam selection unit, and a beam quantizing unit. The space characteristics of the physical channels are utilized reasonably. Accordingly, a beam gain is obtained, interference is suppressed effectively, and the apparatus is easy to operate.

Abstract: A spatial domain matched filtering method and an array receiver in a radio communication system are provided. The spatial domain matched filtering method includes the steps of receiving array digital signals; weighting the array digital signals to obtain digital beam output signals; evaluating power value of digital beam output signals and normalizing the digital beam output signals; evaluating a correlation coefficient reflecting the energy of an expected signal in each beam; wherein evaluating equations are: Coeff i ? ( k ) = 1 N ? ? n = 1 N ? || S ~ Bi ? ( n ) ? s * ? ( n ) ? || 2 , Coeffi(k)=Coeffi(k)+?Coeffi(k?1); and outputting the digital beam output signal corresponding to the maximum correlation coefficient.

Abstract: A spatial domain matched filtering method and an array receiver in a radio communication system are provided.

Abstract: An apparatus and method for down-link multiple-antenna transmission in a wireless communication system is provided wherein a base station section comprises: a down-link specific physical channel unit, a second common pilot channel unit, a beam weighting unit of common pilot channels, a multiplexing and summing unit, a down-link specific physical channel weighting unit, a specific physical channel and second common pilot channel multiplexing unit, an antenna array unit, a multiple-beam weight vector set unit, up-link specific physical channels, and a feedback bit information unit; and a service cell section or mobile station section comprises: an antenna unit, a channel evaluating unit, a beam selection unit, and a beam quantizing unit. The space characteristics of the physical channels are utilized reasonably. Accordingly, a beam gain is obtained, interference is suppressed effectively, and the apparatus is easy to operate.