in the configuration system
there are some paramters , related to TA one of them TA allowed ,we use this parmter to control in cell coverage .
TA range from 0 to 63
0.67 km to 36 km
if Cell TA =5 ,that means this cell will reject all access request after TA =5
so we can test this cell and expand TA=63 , we expect high congestion , so we have to mintor this cell
in our network , after test we found some cells not congested .