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Nokia blasts Ericsson out of water, demos 600Mbps data speeds

Finns finding MIMO: But even that won't be enough in 5 years

In the arms race for faster data speeds, Nokia Networks has pulled out 600Mbps over Ericsson’s 450Mbps by using 4X4 Multiple-Input Multiple-Output (MIMO) technology.

A demo with South Korean mobile operator SK Telecom started with a mere 300Mbps using 20MHz of contiguous spectrum and then using carrier aggregation with LTE-A doubled up to 600Mbps. The 4x4 quantifies the “multiple” in MIMO, in this case it’s four antennas on both the device and the base station, this is twice what Nokia usually uses – although it’s expected for 5G we’ll see massive MIMO with an order of magnitude more antennas. The combination of MIMO4x4 and Carrier Aggregation uses 256QAM (quadrature amplitude modulation), which gives high spectral efficiencies and which Nokia claims also provides a further 30 per cent boost to bandwidth.

In addition, inter-eNodeB-Carrier Aggregation software will be available as an upgrade to existing Flexi Multiradio 10 base stations through ultra dense deployments of over 50 macro and metro/small cells per site.

Nokia says the massive increase in bandwidth is necessary. The Finns predict that demand will increase to the point that people are downloading a gigabyte per person per day – or 60 times the average data traffic seen in mature mobile operator networks today. Future Nokia kit is being designed to cope with 1,000 times more mobile data, the company says. ®

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