Sprint and Samsung Electronics America, recently tested Massive MIMO (multiple input, multiple output) on 2.5 GHz spectrum in Suwon, South Korea.
The Massive MIMO test represented a real-world application of the new technology, slated to help Sprint dramatically boost LTE Plus wireless capacity and coverage, and offer Gigabit LTE service to its customers.
During field testing in Suwon, Massive MIMO Samsung radios, equipped with vertical and horizontal beam-forming technology, reached peak speeds of 330 Mbps per channel using a 20 MHz channel of 2.5 GHz spectrum. Capacity per channel increased about four times, cell edge performance increased three times, and overall coverage area improved as compared to current radios.
Sprint has deployed 8T8R (8 transmit, 8 receive) radios across its U.S. network, and the purpose of the test was to compare the performance of Massive MIMO radios with 8T8R radios.
Sprint, in collaboration with Samsung wrote the test cases and requirements, which included a variety of performance scenarios involving multi-user and non-stationary testing. Samsung provided the Massive MIMO network infrastructure as well as test network design, operation, data collection and processing. Both companies will use the results in preparation for commercial deployment of Massive MIMO in the U.S. and other markets.