This thesis

seeing from the angle of interference suppression

focuses on a new solution to the high area ping-pong effect of mobile signals. It shows the designing principle and the system structure of a GSM intelligent wireless interference suppression device

according to the shielding device of mobile signal and co-channel interference principle; concludes the engineering application mode through trial; and analyzes the application possibility on some new situation

such as roaming signal suppression

skip zone coverage and so on.