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, 

Peiyiing Zhu

Achievable: Drastic drop in bad cell phone connections. Massive MIMO - 64 or more antennas - can dramatically improve edge performance by "beam forming," directing the signal where the users are. Done well, it can dramatically improve the performance where it's weaker. Hidebumi Kitahara of Softbank told me that is working very well and will get better as software improves. See "I am crazy about Massive MIMO," Kitihara of Softbank ordering 1,000's of Massive MIMO bases

Robert Clark of Light Reading reports Kitahara intends to use the capacity to improve performance for all users. "We don't care about peak throughput. We want to minimize the low throughput, which is between 1 Mbit/s and 5 Mbit/s." Clark adds, "At those speeds, the network will struggle to deliver a good video experience. Prior to deployment, around 20% of all users were experiencing throughput below 2 Mbit/s." Kitahara reveals, "only a few percent," now receive low speeds.

The massive MIMO solution, using 128 transmitters, ensured that users were getting at least 5 Mbit/s data throughput. Kitahara had already installed 100 base stations last November and ordered thousands more.  

Both Peiying Zhu of Huawei and Professor Erik Larsson make that point in these short videos. 

 

Larssen 300

Peiying Zhu 300

 

 

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.