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.
Gunther Ottendorfer, COO Technology, Spirnt
Massive MIMO is a tremendous differentiator for Sprint because it is easily deployed on 2.5 GHz spectrum due to the small form factor of the radios needed for a high frequency band. In lower frequency bands, wavelengths are much longer and therefore the radios require much larger, impractical form factors. This makes Massive MIMO an important tool for unleashing our deep 2.5 GHz spectrum holdings.
Mark Louison, SVP and GM, Smasung Networks
Samsung is excited to reach this important milestone with Sprint, as we continue to develop the commercial solution for the coming year that is expected to provide nearly 8x capacity improvements. This is another innovation Samsung will deliver to our technology-forward customers who operate some of the most data-intensive networks in the world.
