AT&T is leading the charge to allow a third category of equipment into the USA’s new CBRS spectrum band, supporting higher powered applications. Members of the operator’s technical and regulatory staff met with FCC officials last week to propose increased power levels to enable a new type of CBRS small cell (called CBSDs), in the 3.5 GHz spectrum, which is being opened up for 4G and future 5G with a multi-tiered access system. The FCC currently allows two categories of CBSDs. Category A refers to a lower power base station, mainly for indoor use, while Category B refers to an outdoor-only CBSD with higher maximum power limits. AT&T wants a Category C product with even high power allowances – specifically,…