Mobile operators, especially those in mature LTE markets where data usage is growing exponentially, constantly need to augment the capacity of their networks. Massive MIMO provides an effective way to inject new capacity into those networks without the high costs of buying more spectrum or adding new base station sites.
MIMO stands for multiple-input, multiple-output antenna. It increases the number of antennas on a radio. By creating multiple receive and transmit paths between the base station and the end device, it allows to improve spectral efficiency per cell and the number of users who can be served simultaneously. This raises the peak and average cell throughput. And with massive MIMO comes beamforming technology, which allows for the focusing of radio signals on specific user devices. As a result, interference is reduced and signal quality, especially at cell edge, is improved.
While TDD is generally associated with massive MIMO, the technology can also be applied to FDD bands. This will be especially important when operators start using their FDD spectrum for 5G. Samsung has developed a series of TDD and FDD massive MIMO solutions adapted to operators’ needs and spectrum assets. The lineup was presented at the Samsung booth during Mobile World Congress 2018 in Barcelona. The first massive MIMO product supporting the new 5G NR 3GPP specifications for below 6GHz spectrum was also showcased.
At MWC 2018, Samsung announced that Sprint has selected to deploy Samsung's new 5G-Ready Massive MIMO solutions to increase gigabit speeds and capacity and build a 5G mobile network using its 2.5GHz TDD-LTE spectrum.
To learn more about massive MIMO and Samsung solutions, you can download the whitepaper Massive MIMO comes of age. See also Samsung announcement with Sprint.
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