It's Friday again. In today's edition of Gigabites, Huawei demos 25-Gig speeds with DOCSIS 3.1, data caps grab headlines again, WOW introduces its first gigabit markets and more.
Huawei showed off its 25-Gig solution at the recent SCTE Cable-Tec Expo event in Philadelphia and explained how it's achieving higher data rates over existing hybrid fiber-coaxial (HFC) networks. Using new "high-frequency bandwidth amplification and digital non-linear compensation technologies," the company is extending spectrum use into frequency bands reaching as high as 3 gigahertz. That's way above where cable providers normally operate.
The typical cable plant is probably in the 750-860MHz range today, though some cablecos are undoubtedly still on 550MHz systems. Increasingly, operators are expanding up to 1GHz or 1.2GHz plants -- particularly in order to take advantage of D3.1 -- but 3GHz is unheard of. If Huawei's solution becomes practical in a real-world environment, it could extend the lifespan of legacy HFC networks even further.
As DSLReports notes, 1 terabyte is far more data than most consumers use today, but the question is how that cap will hold up in the future as 4K streaming and virtual reality take hold.
— Mari Silbey, Senior Editor, Cable/Video, Light Reading