Courtside, Sprint and its partners set up an indoor base station system, similar to an outdoor base station set-up, inside the stadium with three-channel carrier aggregation (CA), which Sprint has turned up in 100 markets, including New Orleans. They used 60 MHz of Sprint’s 2.5 GHz spectrum combined with 4X4 MIMO and 256-QAM higher order modulation to achieve Category 16 LTE download data speeds on a TDD network.
The pre-commercial Motorola device—a flagship smartphone based on the Qualcomm Snapdragon 835 mobile platform with an integrated Snapdragon X16 LTE modem—is still under wraps and its release date is to be determined, but it was made available to Sprint for demonstration purposes. The device has all the proper antenna and band configurations to support Gigabit Class LTE, including support for High Performance User Equipment (HPUE), a handset-based technology that has the ability to extend Sprint's coverage by up to 30%, including indoors.
http://www.fiercewireless.com/tech/sprint-shows-off-gigabit-class-lte-qualcomm-motorola-new-orleans