Shaw is western Canada’s dominant cable operator.

While American cable companies have cut back investing in their high-speed broadband services as competition languishes, a price and service war has erupted between western Canada’s biggest cable and phone companies, with consumers winning the benefits of increased investment and fierce competition.

Shaw Communications, the largest cable company west of Ontario, has just upped the ante with the introduction of 1,500/100 Mbps unlimited internet service for $127 (all prices in $US) a month. The new speed tier, known as Fibre+ Gig 1.5,  is delivered over Shaw’s existing DOCSIS 3.1 cable broadband network, and is already available in Winnipeg, Calgary, Edmonton, Vancouver, and Victoria, and is gradually expanding outwards to smaller cities, including Banff in Alberta, and Burnaby and Dawson’s Creek in British Columbia. Shaw also offers a traditional gigabit unlimited plan in most of its service area, offering 940/25 Mbps for $88/month. Both high-speed plans include a two-year contract.

“The hard work and investments we’ve made in building, upgrading and expanding our Fibre+ and Fast LTE networks and services — nearly $22.8 billion over the past seven years — allow us to deliver these ultrafast speeds to western Canadians over our existing infrastructure,” said Zoran Stakic, chief operating officer and chief technology officer. “These ongoing investments are the foundation to providing our customers service beyond one gigabit today and ultrafast speeds to more places in the future.”

“We know that there’s a growing segment of people — including heavy gamers, content creators and super streamers — who need access to ultrafast internet services, and that need has only increased during the pandemic as many of our customers manage the reality of having multiple people working from home and sharing bandwidth,” said Paul Deverell, president of Consumer, Shaw Communications. “With the launch of our Fibre+ Gig 1.5 product, we are delivering the speeds and capacity needed by today’s super users and data-heavy customers, while confirming Shaw’s position as the western Canadian leader in gigabit speed deployment.”

Telus is western Canada’s largest phone company.

Shaw’s increased investment is designed to fend off its chief competitor, Telus. In 2020, Shaw discovered a growing number of its broadband customers defecting in favor of Telus, the region’s telephone company. Telus is expanding its own high-speed offering, which relies on fiber to the home service. In some areas, Telus offers 940/940 Mbps service on a two-year contract for $76 a month and a 1,500/940 Mbps plan for $127 a month — which matches Shaw’s price but vastly exceeds Shaw in upload speed. To further sweeten the deal, Shaw gives its premium-speed internet customers discounts on Shaw Mobile services — including the exclusive rate of $25 per month on Unlimited Data wireless plans for Shaw Fibre+ Gig 1.5 and Fibre+ Gig internet subscribers.

Shaw claims its infrastructure has made it possible to offer gigabit service to at least one million more western Canadians than Telus. Telus has been gradually scrapping its legacy copper wire network in favor of fiber optics, but will likely take over a decade to complete the transition in significantly populated communities.

While Canadian cable companies are pushing DOCSIS 3.1 to the limit, American cable companies have taken it easy this year, reducing estimated budgets for network investment, returning to data caps, and putting further upgrades to next generation DOCSIS 4.0 on hold for at least a year or two. With AT&T and Verizon distracted and focused on spending billions to build 5G wireless networks, both companies have stopped significant expansion of fiber-to-the-home service for residential customers, reducing competitive pressure on cable operators. This reduced competition allows cable companies an opportunity to raise rates on broadband customers, and Charter Spectrum has done exactly that, announcing a general $5/month increase on residential internet service to take effect by the start of 2021.

Some Comcast customers are receiving notifications their service may be briefly interrupted as a result of ongoing network enhancements:

As you can imagine, customers are using our services more than usual, and in certain neighborhoods we are adding capacity to improve our network and your service now. Your area has been identified as a location that will benefit from network improvements, which is why it’s necessary for us to complete the work at this time, so you’ll continue to connect and enjoy the services you expect.

We are installing more fiber throughout our network by replacing some coaxial cable with fiber lines. This will include some construction in your neighborhood and will cause some intermittent interruptions to your service during the day.

In the future, we’ll be able to offer you even more reliable service, greater network capacity and more gig speeds to more homes down the line. This means more downloading, more streaming and more gaming.

Comcast is currently preparing its network for full duplex DOCSIS 4.0 service by adopting “node plus zero” network architecture, which in plainer terms means removing signal amplifiers from existing lines and replacing a significant percentage of its copper coaxial cable infrastructure with fiber optics. The fiber network upgrades are reportedly bringing more consistent and faster internet speed on a more reliable network as soon as the switch is complete. Most customers won’t see fiber cables replacing the current cable line coming into their homes, however. The upgrade is mostly taking place on utility poles and, in some places, underground as Comcast replaces copper wiring with optical fiber cables.

Sometime next year, Comcast is expected to start adopting Full Duplex DOCSIS (FDX) 4.0, the newest cable broadband standard, capable of bringing identical upload and download speeds to customers. It is the only major American cable operator to favor FDX, which will place upstream and downstream traffic on the same block of cable spectrum. Other cable operators including Charter Spectrum, Cox, and Mediacom will support Extended Spectrum DOCSIS (ESD) 4.0, which is expected to be cheaper to deploy and will continue to keep downstream and upstream traffic confined to separate frequency bands, albeit larger ones capable of delivering much faster speeds.

CableLabs unveiled the final DOCSIS 4.0 specification today, dramatically improving upload speeds and offering the potential of much faster internet service from cable operators in the next few years.

DOCSIS 4.0 will support downstream speeds as fast as 10,000 Mbps and upload speed as fast as 6,000 Mbps, finally bringing faster upstream speed to cable company-provided internet. The new standard raises maximum speeds by opening up “extended spectrum” on the coaxial cable coming into your home. By dedicating additional frequencies for data services, cable companies can raise both speed and capacity.

Consumers have been asking for faster upload speeds to support streaming live video, cloud backup services, and a growing number of in-home devices sharing a single internet connection. For years, cable providers have only been able to provide a small fraction of upstream speed in comparison to download speed. That distinction will largely be erased as DOCSIS 4.0 gets deployed over the next few years. Providers are likely to raise upload speeds on existing speed tiers and offer consumers symmetrical download and upload speed for gigabit connections. The increased speed will also likely make cable broadband more attractive to business customers.

The new standard will also decrease network latency, crucial for some online applications. It will also feature more robust security and higher reliability by identifying potential network problems before they become apparent to customers.

Consumers may see DOCSIS 4.0 modems and service available within the next two years.

Despite assurances from FCC Chairman Ajit Pai that the repeal of net neutrality would inspire cable operators to increase investment in broadband, a year-long virtual spending freeze by the nation’s top cable operators has resulted in a major vendor pulling out of the next generation cable broadband standard until there are signs cable companies are prepared to spend money on upgrades again.

Cisco Systems has confirmed to Light Reading it has ceased investment in Full Duplex DOCSIS technology that would allow cable customers to get the same upload speed as download speed.

“Cisco has internally communicated that we are suspending further investment in Full Duplex DOCSIS (FDX) until the market timing, ecosystem development and size of the opportunity can be quantified,” a Cisco spokesperson said in a statement to Light Reading.

The news is a significant blow to the cable industry’s plans to upgrade to 10 Gbps capacity and a growing desire by customers to get much faster upload speeds than are currently available.

Cisco blamed its pullback on the cable industry’s lack of investment in broadband upgrades and an uncertain timetable when major cable companies including Comcast, Charter, Cox, and others will announce specific plans for future upgrades.

FDX has already been the victim of delays. Originally planned as an incremental upgrade for DOCSIS 3.1, FDX is now scheduled to be included in CableLabs’ DOCSIS 4.0 specification, which is not expected to be released for a few years. FDX will be one of several new features incorporated into the next cable broadband standard, which will allow for low latency connections and an expanded amount of coaxial cable spectrum that can be devoted to broadband services.

The cable industry has been taking a sober look at the costs associated with adopting FDX, which includes scrapping a significant amount of coaxial cable and pushing fiber optic technology much closer to customers. Cable systems that want to move towards FDX will have to remove amplifiers that maintain signal strength between the fiber optic connection and the coaxial cable entering customers’ homes. In some cases, this will mean removing multiple amps from the cable system and stringing new fiber optic cables deep into neighborhoods. This is known as node+0 architecture. Moving towards node+0 is expected to be both costly and labor intensive, and some large cable systems and investors are balking.

“There are a lot of operators who have no intention of getting to a node+0 environment in next 10 years,” Tom Cloonan, chief technical officer of Arris’ Networks Solutions unit, told Multichannel News last fall. “It’s going to take a while to run fiber deep enough to get to node+0.”

To date, the only major cable operator that has definitively backed moving to node+0 is Comcast. Other cable companies, notably Cox Communications, are seeking a much cheaper solution to manage upgrades.

Extended Spectrum DOCSIS (ESD)
Image courtesy of: Huawei

An emerging alternative concept has emerged that can be implemented at a lower cost. Extended Spectrum DOCSIS (ESD) would essentially repurpose much of the bandwidth available over a coaxial cable solely to broadband service. DOCSIS 3.1 currently dedicates 1.2 GHz of spectrum for broadband. FDX would increase that to more than 1.8 GHz. ESD would devote as much as 3 (or possibly 6) GHz of spectrum for data transmissions. The cable system would devote as much as half of that spectrum for downstream traffic, the other half for upstream. Theoretical speeds in the future could be as high as 60 Gbps, and ESD will not require cable systems to ditch existing amplifiers. It will, however, force some cable systems to evaluate and replace at least part of their older coaxial cable network. ESD will be less forgiving of deteriorating cable than DOCSIS 3.1 is.

Unfortunately for Cisco, and other cable broadband equipment suppliers, ESD is still more theory than fact, and with cable operators demonstrating they are in no rush to move to either FDX or ESD, it will likely be several years before either technology becomes available to customers. Cloonan predicts ESD will not be implemented by cable systems until the mid-2020s.

The muddy waters over where the cable industry will ultimately plant the flag on next generation broadband upgrades means a lot of uncertainty for companies like Cisco, which has resulted in the company pulling out of developing FDX until there are assurances the cable industry has a timetable to implement it. The decision has also cost several Cisco employees their jobs. Multiple industry sources told Light Reading job cuts included 5-7 engineers dedicated to FDX, and some sources also report at least 40 employees in the cable access division of Cisco have also been let go.

If certainty does not return to the cable broadband market soon, Cisco could ultimately jettison much of its cable broadband technology division to focus on other technology growth areas.

The cable industry’s investment freeze is ironic because the Trump Administration’s FCC trumpeted its decision to repeal net neutrality, claiming it would inspire cable operators to accelerate investment in network upgrades. It appears the exact opposite has occurred.

The next standard for cable broadband is now due by 2020.

CableLabs is working on the next generation of broadband over existing Hybrid Fiber-Coax (HFC) networks, finally achieving identical upload and download speed and supporting more spectrum on existing cable lines, which could mean another leap in broadband speed.

DOCSIS 4.0 is still evolving, but according to Light Reading, the next upgrade will fully support Full Duplex DOCSIS, allowing customers to get the same upload speed as their download speed, and will fully implement Low Latency DOCSIS which could reduce traffic delays to under 1 ms. The new standard will also introduce Extended Spectrum DOCSIS, which will open up broadband traffic on frequencies up to 1.8 GHz — 600 Mhz more bandwidth than available today. That additional spectrum will allow for speed increases in excess of 1 Gbps, support IP video traffic, and backhaul for wireless applications like small cells. 

According to Light Reading, people familiar with the development of the cable broadband specification believe much of the work will be complete by the end of 2019, with the spectrum expansion specification expected before mid-2020. This would allow the introduction of DOCSIS 4.0 modems for purchase beginning in 2021.

Cable operators are largely taking a break on large investments this year, with few planning major infrastructure changes beyond some projects underway at Comcast and Altice-Cablevision’s ongoing replacement of its HFC network with fiber to the home service. In 2020, operators will make crucial decisions about their next upgrade commitments. Comcast and Altice will have the easiest time delivering symmetrical broadband because Comcast will support the “Node+0” design that eliminates amplifiers between the nearest node and the customer’s home. This will facilitate the introduction of symmetrical speeds. Altice is dropping the DOCSIS standard as it moves to fiber service, which already supports symmetrical speeds.

Other cable operators are not currently committed to removing amplifiers from their networks, supporting alternate designs like “Node+1,” “Node+2,” etc., which are similar to today’s cable system designs. Instead, they are hoping to leverage Extended Spectrum DOCSIS to boost their speeds. Most will likely offer significant speed bumps for uploading, but those speeds won’t match download speed. For example, Charter Spectrum or Cox might upgrade customers to 500/100 Mbps service, on the theory that 100 Mbps upload speed will still be a welcome change for customers, and not noticeably slower for most current applications, such as uploading videos or file storage in the cloud.

Industry trade association NCTA reports that Comcast, Charter, Cox, Mediacom, Midco, Rogers (Canada), Shaw Communications (Canada), Vodafone (Europe), Taiwan Broadband Communications, Telecom Argentina, Liberty Global (Europe/Latin America) are all implementing the industry’s 10G initiative, with lab trials already underway, and field trials beginning in 2020. DOCSIS 4.0 will ultimately be a part of that project.

CableLabs is already making plans for DOCSIS 4.1 (our name, not theirs), that will further extend DOCSIS spectrum up to 3 GHz — a massive upgrade in usable spectrum. Whether that will be technically plausible on aging cable systems last rebuilt in the 1990s isn’t known, and probably won’t be for two or more years. But if it proves technically feasible, DOCSIS 4.1 could be one of the last DOCSIS standards before cable systems consider abandoning HFC in favor of all-fiber networks.

CableLabs has proved itself to be adept at squeezing every bit of performance out of a network that was originally built with simple coaxial copper cable and designed to distribute analog TV signals. DOCSIS 4.1 would support speeds potentially as high as 25 Gbps downstream and 10 Gbps upstream. Customers would require new cable modems and cable systems would have to tighten standards to take aging infrastructure out of service more frequently. Upload traffic would likely be assigned spectrum below 1 GHz, with 1-3 GHz reserved for downloads. By then, television, phone, and internet services would likely all be a part of a single broadband pipe.

Cable systems have enjoyed enormous cost savings over the last 20 years deploying DOCSIS upgrades instead of scrapping their existing HFC networks in favor of all-fiber. Charter Spectrum admitted the cost to upgrade from DOCSIS 3.0 to DOCSIS 3.1 was just $9 per subscriber.