cell phone jammer is for the place where the area to be shielded

cell phone jammer  is for the place where the area to be shielded.
TA and the actual match. For some reason, when the BSC timing advance (TA) is not consistent with the actual TA will result in the slot on the interference can cause serious interference, dropped calls. The above reasons for the failure to analyze and propose appropriate solutions. Switch to analyze and solve. Switching of the main reasons the following categories: uplink and downlink receiver the level RX_LEVEL causes switch. Downlink receiver quality RX_QUAL causes switch. Uplink and downlink interference caused by the switch. Switch power budget (PBGT). Call reconstruction. Traffic causes the switch. If the call drop rate is related to switching, the first test vehicle for a wider range of tests. The shielding radius of this kind of cell phone jammer system can be precisely adjusted.
Switch between the district and the base station, district of dropped calls with neighboring cells to switch between settings caused by the irrational. Exist for some of the district switch topology relationship, congestion and a higher rate of cell should be the focus of the test, and need to check whether the area around the blind spot, if it is for this reason should be timely to amend the relevant frequencies and adding new base stations or expand the original the base station coverage. Dropped calls caused by the switch to set unreasonable according to the actual situation is appropriate to modify the switch parameters. The target base station without switching channels because the traffic is not balanced, causing the busy dropped calls, the solution is to carry out the adjustment of the traffic.