When coverage extension becomes difficult due to hills and mountains preventing line-of-sight with the BTS location, using a RF or fiber optical repeater to enhance signal coverage provides an ideal solution. Deployment of repeaters can minimize the rollout time and site acquisition is much easier approved.

Highways provide a good example where deployment of new BTS" s is not only cost ineffective but under utilization of BTS capacity. In most practical situations providing coverage to highways provides convenience and for emergency purposes, but BTS capacities along highways are extremely under utilized. Also with growing intolerance from subscribers to call drops, operators are force to provide coverage along the full stretch of the highway.