T-Mobile’s Salim Kouidri tweeted on Tuesday (see below) that their 5G network in New York City recently hit 1G bit/sec download speeds, at least in one recent test. Surprisingly, that 1 Gig connection didn’t even make use of T-Mobile’s low-band or millimeter wave (mmWave) spectrum holdings.
- N41 (the 2.5GHz spectrum T-Mobile acquired from Sprint)
- B66 (the AWS spectrum T-Mobile is using to broadcast both 5G and 4G using EN-DC technology)
- And Band 46 (the unlicensed 5GHz band that T-Mobile is using to deploy LAA technology)
Therefore, the operator’s 1Gbit/s 5G connection didn’t even make use of T-Mobile’s low-band or high-band, mmWave spectrum holdings. Moreover, T-Mobile officials have said the operator is initially deploying only 60MHz of the roughly 150MHz it now owns in the 2.5GHz band. The inclusion of transmissions in those additional bands would undoubtedly increase users’ download speeds.
Although Australia’s Telstra, all three of South Korea’s operators, Sprint in the U.S. and the U.K.’s EE and Vodafone have all deployed 5G on mid-band spectrum, users’ speeds differed greatly from well over 200 Mbps on all three Korean operators, to 114.2 Mbps on Sprint. In part, this speed difference is because of the amount of 5G spectrum available to deploy — wider channels are better, ideally 100Mhz in a single 5G band — but it’s also due to other differences in the networks such as the capacity of the onward connection from each cell site or the performance of each operator’s core network.
As the new T-Mobile combines the assets of Sprint, we expect to see the average 5G speed of new T-Mobile users rising as they benefit from the mid-band 5G spectrum which Sprint has deployed.
The record speed was achieved by combining eight 100 MHz channels of millimeter wave spectrum on the 28 GHz and 39GHz bands, providing 800 MHz of bandwidth, and 40 MHz of LTE spectrum using the EN-DC functionality available on Nokia’s AirScale solution. EN-DC allows devices to connect simultaneously to 5G and LTE networks, transmitting and receiving data across both air-interface technologies. This means devices can achieve a higher throughput than when connecting to 5G or LTE alone. The speeds were achieved on both 5G cloud-based (vRAN) and classic baseband configurations.
Nokia’s AirScale Radio Access is an industry-leading, commercial end-to-end 5G solution enabling operators globally to capitalize on their 5G spectrum assets. It offers huge capacity scaling and market-leading latency and connectivity by enabling all air-interface technologies on the same radio access equipment.
Stéphane Téral, Chief Analyst at LightCounting Market Research, said: “This is a substantial achievement that reflects the careful workings of a brilliant and subtle team with the deepest appreciation for detail and circumstance. In other words, 8-component carrier aggregation in the millimeter wave domain shows the world that there is more than massive MIMO and open RAN to not only truly deliver the promise of commercial 5G, but also pave the way for future Terahertz system.”
Tommi Uitto, President of Mobile Networks at Nokia, commented: “This is an important and significant milestone in the development of 5G services in the U.S., particularly at a time when connectivity and capacity is so crucial. It demonstrates the confidence operators have in our global end-to-end portfolio and the progress we have made to deliver the best possible 5G experiences to customers. We already supply our mmWave radios to all of the major U.S. carriers and we look forward to continuing to work closely with them moving forward.”