| 1998— | President, Beijing Institute of Posts and Telecommunications Beijing Municipality | |
| 1996—1998 | Vice-President, Beijing Institute of Posts and Telecommunications Beijing Municipality | |
| 1993—1996 | Director, Beijing Institute of Posts and Telecommunications, Radio Engineering Department Beijing Municipality | |
| 1990—1993 | Research Fellow, King's College United Kingdom, London | |
| 1985—1990 | Research Fellow, University of Southampton United Kingdom, Southampton | |
| 1981—1985 | Lecturer, Beijing Institute of Posts and Telecommunications Beijing Municipality | |
| 1970—1978 | Cadre, Education Bureau Hebei Province, Haixing County | |
| Graduate, University of Southampton United Kingdom, Southampton (Received Doctorate) |