New bands, previously considered unsuitable for radio, and unlicensed spectrum, are the two most obvious ways to address the shortage of airwaves for wireless services, but in both cases, the potential may be compromised by the power struggles going on in these bands. Various technologies which have emerged recently, under the auspices of Qualcomm and others, which allow LTE to run in unlicensed spectrum and coexist with other connections there, notably WiFi. LTE-Unlicensed is the closest to commercial reality but the most controversial because it does not require Listen Before Talk (LBT) mechanisms to avoid interference with WiFi. These are mandatory in many markets in the 5 GHz band, but not in the US, so LTE-U tests and plans have…