There has been much talk of 5G access technologies at Mobile World Congress this week, including the use of millimetre wave (MMW) in high spectrum bands, but one company warns that there are still major challenges to be overcome…
There has been much talk of 5G access technologies at Mobile World Congress this week, including the use of millimetre wave (MMW) in high spectrum bands, but one company warns that there are still major challenges to be overcome, particularly when it comes to devices.
"We have to be very cautious," Shayan Sanyal, chief marketing officer at wireless transmission technology company Bluwan, told Total Telecom on Wednesday.
Using 6 GHz-plus MMW spectrum for transmission works; many challenges have been overcome and the technology is fairly advanced, Sanyal explained. But there is still a lot of work to do on devices.
The need for advanced antenna processing inside the device requires a lot of power. "[That will] wipe your battery dry," Sanyal said.
"The science is here," but it remains to be seen if it is cost-effective and deployable, he said, particularly given that most industry players are predicting that 5G will come to market as early as 2020.
"Five years is a very aggressive timeframe," Sanyal said.
That said, "the right people" are working on the problem, he added, naming Samsung as a prime example. "They understand the ecosystem," he said.
And in the meantime, MMW is ready for use as a backhaul technology in dense network deployments.
In Barcelona Bluwan unveiled the results of a study it commissioned from Real Wireless that shows that using high spectrum bands for backhaul will become increasingly important as the number of carrier WiFi hotspots grows.
According to Real Wireless, there will be 31.1 million carrier-grade WiFi hotspots, representing 81% of all access points available to operators. Point-to-multipoint MMW backhaul will be one way to carry the traffic generated by those access points.