This blog is by Ashish Dayama at Nokia Networks.
I don’t know about you, but I’m still reeling from the recent news about Nokia Networks, Ooredoo Qatar and China Mobile achieving the amazing speed with 4.1 Gbps TDD-FDD carrier aggregation. Frankly, I think the team should be invited to guest star on BBC’s Top Gear. And like most car enthusiasts, I want to look under the hood to see just exactly what’s behind that speed record*. That… and I want to watch a replay on my mobile.
In fact, Nokia and China Telecom were the first to achieve TDD-FDD carrier aggregation using a commercial Marvell chipset device a few months ago. This video takes you through the live demo in Hangzhou, China. And even though this latest record wasn’t achieved on a commercially available device, you can imagine the feeling of wind in your hair as you observe how speeds like this are now possible using carrier aggregation.
Supported by the Global TD-LTE Initiative, the 4.1 Gbps was achieved by combining TDD- and FDD-LTE spectrums and aggregating 10 carriers with 200 MHz bandwidth. In other words, the best of wide FDD-LTE coverage meets the best of high capacity TDD-LTE – and the result is optimal load balancing and spectrum use between both networks.
Putting this into perspective for the mobile user, it means that he or she can download a full-length 5 GB high-definition movie in 11 seconds and simultaneously upload a 5-minute 30 MB video clip in less than a second.
Personally, I can’t wait to see what the New Year will bring in terms of new handsets enabled for these heady speeds.
Share your thoughts by replying below – or join the Twitter discussion with @nokianetworks using #NetworksPerform #mobilebroadband #TDLTE #LTE.
* The record was achieved using:
– Nokia Networks’ commercial Single RAN Advanced hardware
– including the Flexi Multiradio 10 Base Station for high-capacity throughput
– Software to aggregate carriers on both TDD- and FDD-LTE spectrums
– LTE-Advanced Multiple Input Multiple Output (MIMO) technology
For more nitty gritty details, check out these white papers: