1.State Key Laboratory of Mobile Network and Mobile Multimedia Technology, Shenzhen 518055, China

2.ZTE Corporation, Beijing 100192, China

3.Department of Electronic Engineering, Tsinghua University, Beijing 100084, China

4.State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China

5.College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310007, China

6.Key Laboratory of High Speed Circuit Design and EMC of Ministry of Education, School of Electronic Engineering, Xidian University, Xi'an 710071, China

7.Collaborative Innovation Center of Information Sensing and Understanding, Xidian University, Xi'an 710071, China

8.National Key Laboratory of Wireless Communications, University of Electronic Science and Technology of China, Chengdu 611731, China

9.National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China

10.Purple Mountain Laboratories, Nanjing 211111, China

11.School of Electrical Engineering and Computer Science, Technical University of Berlin, Berlin 10623, Germany

12.School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China

13.Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China

14.Centre for Wireless Innovation (CWI), School of Electronics, Electrical Engineering and Computer Science, Queen's University Belfast, Belfast BT3 9DT, UK

15.School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore

16.KU 6G Research Center, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates