To defeat this issue a procedure called 'hand-over' is utilized

 To defeat this issue a procedure called 'hand-over' is utilized. While  mobile database your cell phone is being used it entirely screens the control channels of up to sixteen of the neighboring cells nearest to it. The telephone at that point works out which of these phones produce the most grounded signals and communicates a rundown of the best six cells by signal quality back to the base station to which it is right now associated. On the off chance that a telephone moves from the base station, at that point the sign the telephone produces is helped to create a more clear sign. Be that as it may, on the off chance that this boosting of sign quality does not work anymore, at that point the system counsels its database and educates your cell phone to change to another cell. This triggers a handover where the telephone modifies its gathering and transmission frequencies so it would now be able to work with the nearest cell that will invigorate the best sign.