One of the presumed outcomes of the 5G process is full convergence of licensed and unlicensed spectrum, with one or more air interface standards which can span both, using frequencies entirely flexibly according to requirement. This is a very long way off, if the current quarrels over extending LTE into licence-exempt bands are anything to go by. Coexistence of WiFi and LTE in the 5 GHz band is beset by political and commercial agendas, but there are also genuine technical problems in the way of being good neighbors. This is unsurprising, given that the two technologies started from very different places and have evolved separately, under the auspices of different standards bodies. Will this situation improve in the 5G era?…