Massive MIMO Map Feb 2018 450

Dark blue: Building actively: China Mobile, Softbank Japan, Bharti India, Jio India, Vodafone India, Singtel, Globe Phillippines, Sprint USA

Medium: Announced: DT, FT/Orange, BT, Qatar, Verizon USA, T-Mobile Netherlands, Telekom South Africa  

Light blue: Talking: Vodafone England, Vodafone Turkey,
Safaricom Kenya, 

M MIMO from UnicampEricsson: FDD Massive MIMO Cell Shaping Reaching the Field

Tom Marzetta and other researchers have been very skeptical about the performance of Massive MIMO using FDD rather than TDD (Time Division.) M MIMO requires regular and robust reporting from the cell phone, which they feared would be impractical with FDD. Huawei, ZTE, and now Ericsson have done field trials they believe prove otherwise.  

In trial with T-Mobile. Nishant Batra is confident many antenna Massive MIMO will add to performance in FDD frequencies as well as the TDD frequencies beginning to widely deploy. While the performance gain may not be exponential, directing the beam significantly increases capacity even in FDD systems. 

Batra expects 3 carrier, 60 MHz TDD Massive MIMO in early 2018. He didn't provide performance estimates, but that class of technology should provide double or better the effective capacity of the "Gigabit LTE" now deploying. More at

The Site for Massive 230
dave ask

Massive MIMO is rapidly deploying across the world; Soon, I'll be adding many more countries to the Massive MIMO map. On average, adding 64 or 128 antennas triples the performance of the cell site at moderate cost. Ericsson, Huawei, and ZTE are shipping by the thousands.

Being a reporter is a great job for a geek. I'm not an engineer but I've learned from some of the best, including the primary inventors of DSL, cable modems, MIMO, Massive MIMO, and now 5G mmWave. Since 1999, I've done my best to get closer to the truth about broadband.

Send questions and news to Dave Burstein, Editor.