PUBLISHER: BuddeComm | PRODUCT CODE: 991780
PUBLISHER: BuddeComm | PRODUCT CODE: 991780
US cablecos looking to sideline DOCSIS4.0The large broadband market in the US is served by many operators, though a few of these account for the vast majority of subscribers. This is equally true in the DSL and cable broadband sectors. To increase data rates. DSL operators over the years have trialled a range of technologies, including iterations of VDSL as well as G.fast, which can provide data at above 1Gb/s. Similarly, cablecos have largely transitioned their networks to DOCSIS3.1. Some have invested in DOCSIS4.0, specifications for which were worked on by CableLabs in 2020. Operators including Comcast, Charter, and Cox are looking to Full Duplex DOCSIS to enable multi-gigabit symmetrical speeds of up to 10Gb/s further into the future. Coherent optics technology could boost the capacity of HFC networks to 1,000Gb/s and above. However, some of the cablecos are looking to suspend the migration to DOCSIS4.0 in preference for broadband service offerings based on FttP. While Cox has been working on DOCSIS4.0 as a development project, the company in February 2022 also announced a multi-billion-dollar investment over several years to deploy a fibre network capable of providing data at up to 10Gb/s, probably in tandem with rolling out DOCSIS4.0 as a subsidiary but minor offering. In part, the investment in fibre could be seen as a commercial response to similar efforts from AT&T and other competitors. Altice USA in 2021 decided to ditch DOCSIS4.0 in preference for covering two-thirds of its footprint with fibre by the end of 2025.