1. National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, China
2. Purple Mountain Laboratories, Nanjing, China
3. Research Department of Beijing R&D Subdivision, Wireless Network, Huawei Technologies Company Ltd., Beijing, China
4. Wireless Network RAN Research Department, Huawei Technologies Company Ltd., Shanghai, China
5. State Key Laboratory of Millimeter Wave, School of Information Science and Engineering, Southeast University, Nanjing, China