noise origin
2.Through analyse PHS network lose principle of words, draw to it lays to be to is it interfere , reduce lose origin of what to reduce rationally base station, through adjust some base station position , inclination under the aerial , change omnidirectional antenna beam antenna ,etc. among project, combine and adjust relevant parameters, to improve the intensity of signal that TCH interfere the area or reduce the background noise, thus solved and upgoed and fallen TCH caused to interfere well.

