Massive MIMO is a game-changer for TDD-LTE networks that’s being used by leading operators around the world to deploy Gigabit LTE and 5G,” said Dr. John Saw, Sprint Chief Technology Officer. “For more than a year we’ve been testing this new technology, and in a few short weeks we’ll be bringing the power of Massive MIMO to Sprint customers beginning with some of the largest markets in the country.”
All Sprint customers using a 2.5 GHz (band 41) device will benefit from the increased capacity and speed provided by Massive MIMO. In addition, Sprint is working with Qualcomm Technologies, Inc., a subsidiary of Qualcomm Incorporated, and device manufacturers to launch 5G mobile devices in the first half of 2019. The recently announced Qualcomm® Snapdragon™ X50 5G modem supports 5G NR for Sprint’s 2.5 GHz (n41) spectrum band.
basically we wont hear anything but rumors until the actual release of the devices/the launch of 5G in the first quarter of 2019.