This is a very interesting result. With the increase in the importance of smartphones and the attendant increased importance to customers of good signal for voice and data transfer, and in view of the existing number of very low signal level areas and dead spots, the need for better coverage, preferably at low cost, becomes increasingly apparent. What would have been an minor inconvenience only a couple of years ago now seems like a major problem to the customer and will need to be resolved soon.
Heavy cell phone users are well aware of the "dead spots" in their local area. It would be wonderful if this active technology could build continuous coverage bridges across small dead spot gaps and avoid the need to add additional towers. New towers could be more cost effectively allocated for the larger gaps that can't be bridged by active antennas.