A Major Leap Toward 10G: CableLabs to Complete DOCSIS® 4.0 Specification in Early 2020
In a continuing effort to meet the industry’s recently announced 10G goal, CableLabs is wrapping up the first major update to its DOCSIS specification since DOCSIS 3.1. DOCSIS 4.0 technology will enable the next generation of broadband over cable’s existing hybrid fiber coax (HFC) networks, delivering symmetrical multi-gigabit speeds while supporting high reliability, high security and low latency.
What is DOCSIS 4.0 Technology?
Building on the success of DOCSIS 3.1 technology, which the cable industry is leveraging globally to deliver 1 Gbps services to end users, DOCSIS 4.0 technology supports a rich and flexible feature set of capabilities. The technology will enable multiple system operators (MSOs) to deliver on the 10G vision and includes support for Extended Spectrum DOCSIS (ESD) and Full Duplex DOCSIS (FDX) capabilities. These are complementary technologies that jointly or individually represent key elements to deliver on the 10G promise. By supporting these technologies, cable operators can deliver a richer feature set of capabilities and facilitate a cost-effective upgrade to a better, faster and more efficient network.
- Full Duplex DOCSIS Capabilities
FDX DOCSIS technology allows for concurrent use of spectrum for both upstream and downstream traffic, thus doubling the network efficiency by leveraging the HFC network characteristics, self-interference cancellation technology and intelligent scheduling. DOCSIS 4.0 technology is also backwards compatible with previous generations of DOCSIS technologies.
- Extended Spectrum DOCSIS
With ESD, operators can leverage a lot more usable spectrum on their existing HFC networks—up to 1.8GHz. That’s 600MHz more than the 1.2GHz available to them under the current DOCSIS 3.1 standard. The DOCSIS 4.0 working groups are in full swing, focusing on developing and adding the ESD requirements to the DOCSIS 4.0 specifications.
This boost in capacity provided by DOCSIS 4.0 technology will enable MSOs to provide multi-Gbps symmetric services to residential and business customers, and support the next generation of user experiences such as immersive media experiences in addition to serving as a catalyst for a new wave of innovations.
DOCSIS 4.0 technology is a major step toward reaching the industry’s 10G goal. You can learn more about the road to 10G and its technologies here. If you’re near New Orleans or attending the SCTE Cable-Tech Expo next week, register for our vendor forum, Envision, to get the exclusive opportunity to learn about the technologies the industry is working on. At Envision, which will take place on September 30, you can expect to hear updates about DOCSIS 4.0 technology and 10G, including how 10G will enable mobile and wireless networks.
Preparations for Full Duplex DOCSIS® Technology are Marching Along
Built on the successful completion of CableLabs’ DOCSIS 3.1 specification, Full Duplex (FDX) DOCSIS® technology (now a part of DOCSIS 4.0 technology) is a key component of the 10G platform that will significantly elevate the level of services available to consumers using existing cable broadband networks. With FDX DOCSIS technology (now a part of DOCSIS 4.0 technology), the same frequencies are simultaneously used for both upstream and downstream traffic, virtually greatly increasing the capacity of the coaxial cable. More capacity means lower latency and speeds of up to 10 Gbps for downstream traffic and up to 6 Gbps for upstream traffic. Cable broadband users will be much more satisfied with services, leading to greater customer retention and the ability to attract new customers.
Field Testing Analysis
In the past year, CableLabs has thoroughly scrutinized FDX DOCSIS technology (now a part of DOCSIS 4.0 technology) in the field. Test equipment and engineers have flown around North America performing analysis on real cable broadband networks, including both a newly constructed plant and coaxial cable that was installed back while I was in college (that coax is well past voting age…). Volumes of data were collected, such as technical parameters on various configurations and various weather conditions: data from real networks in the real world.
And it works. The testing results were positive and in line with expectations, and products built to the specifications are expected to deliver the higher symmetrical bit rates associated with full duplex operation. Now, coaxial cable networks won’t be a limiting factor in getting to full duplex and the next generation of broadband services.
Now that CableLabs has developed FDX DOCSIS specifications (now a part of DOCSIS 4.0 technology), members can move forward with this exciting technology. Members can further benefit from the Kyrio testing services that provide all the engineering expertise and lab equipment needed for testing FDX DOCSIS (now a part of DOCSIS 4.0 technology). All the operator has to do is identify network segments where the work is to be performed.
What’s Coming in 2019
Getting back to the lab (which is a lot dryer and warmer than some of the outside plant scenarios where CableLabs has worked), CableLabs is:
- Hosting lab activities to support the development and interoperability of FDX DOCSIS (now a part of DOCSIS 4.0 technology) products
- Bringing back important discoveries from the field testing into the labs to support testing in real-world situations and scenarios.
- Building the lab infrastructure needed to rigorously analyze performance and reliability in a variety of configurations
CableLabs and the cable industry are continuing to advance cutting-edge developments in cable broadband networks to remain ahead of consumer demand. The focus is on developing innovative network technologies, as well as defining optimal network architectures that provide the necessary capacity and performance in each network segment for multi-gigabit services today and in the future.
You can learn more about Full Duplex DOCSIS technology (now a part of DOCSIS 4.0 technology) and the 10G platform by clicking below.