What you need is a Cell Signal Booster. A Cell Signal Booster is a piece of equipment which helps you to overcome weaknesses in the cellular network. If you're a long way from a tower and the connection is weak, it strengthens the signal.If the nearest tower in a city is fully occupied, it can connect you to another tower slightly further away.In effect, a Cell Signal Booster is a mini version of an operator's base station.f you're a long way from a tower and the connection is weak, it strengthens the signal. If the nearest tower in a city is fully occupied, it can connect you to another tower slightly further away. In effect, a Cell Signal Booster is a mini version of an operator's base station.