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Aug 01 2017

Nokia TD-LTE brings sunny Sri Lanka closer to 1 Gbps

Twitter: @nokianetworks

What would you do with access to a 1 Gbps mobile data rate?

It certainly makes a difference to my life. When I get the chance to take time off from work, I like to go to the beach with the family – sometimes not everyone can come, so 1 Gbps lets me stream video from the beach or hotel. Then there’s cricket. When I’m at the airport I can download the last game in seconds or stream a few video clips in HD format at lightning speed.

For more serious pursuits, it can be remote education made easy, remote healthcare made efficient or remote processing of complex data for industries made simple.

The gigabit experience is closer than many people might think. High-end mobile smartphones that can support gigabit speeds are already on the market and a handful of operators have announced the launch of gigabit network upgrades. Right now, delivering the gigabit experience is a prime opportunity for most operators. But they need to move fast to put themselves in a strong competitive position at the right time.

Achieving 1 Gbps downlink data rates (ten times higher than initial LTE rates) calls for the efficient use of spectrum to match the required capacity increase.

One of the countries paving the way to 5G and the gigabit experience is Sri Lanka. 1 Gbps will certainly change the lives of its citizens.

Sri Lanka Telecom capitalizes on unused TDD spectrum

When we were asked by Sri Lanka Telecom (SLT) how they could move towards 1 Gbps, we quickly realized there were several options for the operator.

Together we decided we could utilize unused TDD spectrum and deliver something amazing, so we ran with four carrier aggregation running 4X4 multiple input multiple output (MIMO) on TDD carriers. Each carrier would support 210 Mbps; four carriers adds up to 840 Mbps. Add 256QAM on all the carriers and you end up with 1092 Mbps – 1 Gbps!

In the real world, peak throughput may be less than this, but by using the high capacity Nokia AirScale base station, we came out at 923.98Mbps.

Nokia TD-LTE 4CC + 4X4 MIMO + 256QAM downlink throughput

For operators, the bottom line is that approximately every 15 seconds, subscribers use another 1 Gbps of data and that means more revenue. If this is the experience you’re hoping to deliver in your own markets, please don’t hesitate to reach out to your local Nokia contact.

We have more to share on TD-LTE .

Share your thoughts on this topic by replying below – or join the Twitter discussion with @nokianetworks using #TDLTE #SriLanka #1Gbps

About Upendra Samaratunge

Upendra is the Country Senior Officer and CT head for Nokia Sri Lanka and Maldives - delivering the best in class networking technology that Nokia has to offer to flourishing (not to mention exotic) markets.