150 MHz shared coming available in U.S., 3GPP Band 42 in many other countries. Most of the U.S. spectrum around 3.5 GHz was reserved for government use, mostly Navy radar. It's unused in most of the country, and now is becoming available for consumer services. The Broadband Plan in 2010 set a goal of making available 500 MHz of spectrum. Now a 3.5 GHz eco-system is developing in the U.S., driven by the demands of AT&T and Comcast. CableLabs, Ericsson, Google, Intel, Nokia, Qualcomm and a dozen others have formed the CBRS Alliance, pr below. Their goal is to "Drive technology developments necessary to fulfill the mission, including multi-operator LTE capabilities" and to "Establish an effective product certification program for LTE equipment in the US 3.5 GHz band ensuring multi-vendor interoperability." Ruckus Wireless has some of the most ambitious plans, releasing OpenG, which combines the management built into their Wi-Fi products with 3.5 GHz for a heckuva fast gateway.
In other parts of the world, the spectrum will be used for ordinary TD-LTE service.