Every year since 2007 has been dubbed ‘the year of the small cell’, with varying degrees of justification. Significant penetration of the residential market was followed by disappointment with limited expansion in the most heavily scrutinized sector, the urban hotzone. But like most hyped wireless platforms, just when the market watchers start to lose interest, the technology is suddenly there – established in the mainstream when nobody was looking. Densification is now a common and important element of many operators’ LTE-Advanced plans. It applies to indoor and enterprise locations – often the biggest driver of data traffic and of premium services – as well as the classic network-on-a-lamppost. As attention moves from LTE coverage to capacity, and MNOs start to…