6G remains a decade away. But it is safe to predict that 6G is coming, and will arrive in about 10 years. The mobile industry does so about every decade and 6G will not be an exception.
As prior digital generations have done, 6G will will address capacity by adding new spectrum. Each next-generation mobile network has done so.
That means 6G will incorporate ways to commercially deploy even higher-frequency millimeter wave spectrum than used in the past. And, as has proven to be the case with millimeter wave frequencies generally, as well as beam-forming antennas and other sophisticated radio and modulation techniques, the application of cheap signal processing will make possible commercial use of frequencies that in the analog and early digital eras had been too costly for commercial communications use.
Also, the 6G standard is likely to deepen the already prevalent trend towards heterogeneous access methods, allowing people and devices to use any available lawful resource for access purposes.
It is fair to expect even better latency performance, which might seemingly reach limits as access link latency approaches single-digit levels in 5G, leaving little additional room for improvement.
But it might not be unfair to think about the concept of negative latency, particularly as artificial intelligence becomes a commonplace means of anticipating issues and resolving them before users actually are aware potential problems exist.
Better energy consumption on the part of both the network and devices should be expected. Operating costs, a drive towards carbon neutrality and need for devices that operate without batteries and the attendant operating cost implications also are likely.
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