 Emperor Xiaowu authorized him to take over Heba's authorities in the west and created him the Duke of Lüeyang.Meanwhile, Emperor Xiaowu prepared for an attack on Gao, but meanwhile claimed to Gao that he was preparing to attack Yuwen and Heba Yue's brother Heba Sheng (賀拔勝), who controlled the southern provinces.Gao saw through Emperor Xiaowu's trick, and in summer 534, he instead advanced south toward Luoyang.