The BTS3812AE is a type of outdoor macro Node B developed according to the 3GPP R5 FDD protocols. One BTS3812AE cabinet can support up to 6 sectors, 12 cells and can be applied in urban areas, central business districts and areas with great traffic development potentialities. The BTS3812AE can function well in complicated climates and electro-magnetic environment. It features low cost, quick station construction and great environmental adaptability. It is thus an important supplement to the indoor Node Bs. The outdoor Node Bs, indoor Node Bs and micro Node Bs provide operators comprehensive solutions for seamless radio coverage.