5G MU-MIMO Gains Demonstrated in Verizon Network Test
New testing shows Massive MIMO enhances uplink performance in FDD spectrum, offering a path to increase capacity.
Updated on Sept. 28, 2026 in Telecommunications
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Signals Research Group has confirmed performance gains using 5G Multi-User MIMO (MU-MIMO) technology within Verizon's FDD spectrum. The independent tests, conducted in St. Paul, Minnesota, used 32T32R equipment to improve data transmission capacity.
Why it matters
Operators are searching for ways to boost capacity in existing FDD spectrum, where distinct frequencies for uplink and downlink make channel management more complex than in TDD. This development illustrates a method to improve uplink throughput in established network environments.
The testing utilized 32T32R configurations in the 1.9 GHz Band n2, demonstrating consistent uplink performance improvements over 4T4R MIMO. Devices successfully functioned while separated by just 18 inches, with systems initiating resource sharing within 10 seconds.
The players
Signals Research Group
An independent analytical firm specializing in wireless network performance and mobile technology benchmarking.
Verizon
A major U.S. wireless carrier operating a national 5G network infrastructure that utilizes both FDD and TDD spectrum.
Ericsson
A global provider of telecommunications equipment, including the radio access network hardware used in these tests.
Motorola
A consumer electronics company that manufactures smartphones, including the fold devices used for 5G standalone testing.
The details
MU-MIMO, or Multi-User Multiple-Input Multiple-Output, is a technique that allows network antennas to communicate with multiple devices simultaneously using the same radio frequency resources. The test employed 32T32R (32 transmitters and 32 receivers) equipment, which provides spatial multiplexing to handle concurrent data streams. To gather data, researchers performed walk-testing using analysis tools from Accuver Americas and Keysight Technologies to measure performance on Motorola razr fold 2026 units.
Timeline
September 2026: Signals Research Group published results of the FDD MU-MIMO network testing.
The Tech Race
This trial follows the technical pattern set by the mass deployment of FDD massive MIMO sites in China. It validates that similar capacity-boosting techniques can be applied to the unique spectrum constraints present in U.S. network architectures.
This development represents a background infrastructure improvement that aims to increase network capacity for mobile users. While no immediate device updates are required, the technology is designed to enable faster, more consistent uplink speeds in dense areas using existing 5G bands.
The takeaway
The study suggests that upgrading to 32T32R configurations can effectively optimize uplink throughput in FDD bands. Observers should watch for further benchmarking data to confirm whether these downlink inconsistencies can be resolved in wider field deployments.
Further reading
For more context on current infrastructure advancements, visit Telecommunications.
Source note: This article includes information reported by RCR Wireless News.
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