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DellOro Scalable Infra CapexLet’s face it, cable equipment vendors are certainly happy to put 2019 behind them. A glut of DOCSIS channel capacity, the lack of significant competitive threats, and indecision around DAA technologies and timing all resulted in a spending slowdown that lopped off 35% of total DOCSIS infrastructure revenue, year-over-year. Traditional, centralized CCAP platforms bore the brunt of the reductions, with total revenue down 41% year-over-year.

On the bright side of things, each successive quarter in 2019 showed an improvement in scalable infrastructure spending by two of the world’s largest cable operators: Comcast and Charter Communications. In fact, the fourth quarter of 2019 saw a return to a normalized spending level for the combined operators, with Charter having bumped up its spending to increase DOCSIS capacity across strategic areas of its footprint. 2020 should see an improvement in spending by these operators, though again not to the levels seen in 2017 and 2018.

Also on a positive note, spending on Remote PHY equipment and Virtual CCAP platforms were both up solidly for the year, as a growing number of operators began their long-term transition to distributed and virtualized architectures. That trend will only continue to ramp up over the next few years, as operators continue to modernize their networks to push fiber deeper, reduce MERs (Modulation Error Rates,) and reduce the overall costs of operating their broadband access and outside plant networks.

Focus in 2020 Shifts to Upstream Bandwidth

DAA and virtualization are but parts of major network transformation projects many cable operators are beginning or are expected to begin this year. With the DOCSIS 4.0 specification establishing a clear path forward, giving cable operators the flexibility to pursue either Extended Spectrum DOCSIS (ESD) or Full Duplex DOCSIS (FDX), operators can move ahead with their remote PHY and remote MACPHY deployments to solve immediate head-end and power consumption issues.

Also near the top of many operators’ strategic initiatives for 2020 is the resolution of one of the known liabilities of cable broadband networks: limited upstream, or return path, bandwidth. Cable operators recognize that one of the liabilities they have with DOCSIS is its asymmetric design. For the most part, competitors haven’t exploited this liability. But with FTTH being more widely-deployed, they can certainly point at cable’s lack of upstream bandwidth and how that potentially disrupts latency-sensitive applications, such as online gaming, VR, as well as the simple uploading of photos and videos to social media. With a growing number of telcos and ISPs now offering symmetric 1Gbps services, cable operators are facing increasing pressure to expand their upstream capacity.

Most operators are still providing return band of 5-42 MHz. Using a mid-split design can push the upper limits of that band to 85 MHz, with a high split design giving operators up to 204 MHz to work with in the return path. Some large operators have already started or completed their transition to mid-split, while others are jumping directly to a high-split architecture. At 204 MHz, cable operators can offer 1 Gbps of upstream bandwidth, which matches what many telcos are offering through their FTTH networks.

But these upstream upgrades also require significant changes to the outside plant, including amplifiers and taps. For many cable operators, this isn’t necessarily a bad thing, as these critical outside plant components are nearing the end of their lifespan over the next five years, after having served in broadband networks for the last 10-20 years.

vCCAP platforms can serve a key function during this transition, by giving operators more flexibility in the approach they take and which part of the outside is impacted in certain upgrade cycles. When new capacity is required, both downstream and upstream, new vCCAP servers can be quickly added in any location or existing software resources can be re-allocated to those service groups undergoing capacity upgrades. In many cases, those resources can be added much faster than they can be with a centralized CCAP platform, which would require a linecard upgrade at a minimum to support increased capacity.

Though these upgrades put a lot on the plates of cable operators worldwide, the combination of all these transitions will ultimately lead to the complete overhaul and modernization of their broadband access networks, as they continue to migrate down the path towards 1.8 GHz spectrum, Extended Spectrum or Full Duplex DOCSIS modulation, DAA, and virtualization. Again, all these changes will definitely occur in phases, as each operator weighs the vision of their future networks and services against the short- and long-term costs to get there.

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At the end of each year, I like to reflect on the key trends that I believe will drive the products, purchasing, and messaging in the year ahead. I review the past year’s meeting notes and marvel, once again, at my good fortune in speaking frequently with intelligent people. Then, I try to read between the lines to figure out if anything I learned in those meetings foreshadows what’s to come.

I then balance my insights and predictions with the noise from CES as it opens a new year of trade shows. With my inbox full of new product announcements, I can’t help but wonder if products showcased at CES will set the tone for the rest of the year. Will the latest WiFi router, gaming console, and series of IoT devices be the next game changers?  Or will they fall flat like so many other consumer products?

This year, I believe that one of the biggest trends we will see is a fundamental shift in how consumers and service providers think about home networking. A confluence of technologies reaching the market at the same time will have a positive impact on the capabilities and management of home networks, including:

    • WiFi 6: For many years, the evolution of WiFi has been focused on improving two key technical attributes: speed and range. WiFi 6, however, is the first iteration to take a holistic view of wireless technology that encompasses improvements in speed and range as well as network intelligence, analytics, and power efficiency. WiFi 6 also has the capacity to dramatically improve how service providers will be able to provision, manage, troubleshoot, and analyze their in-home networking services. It provides options for remote, zero-touch provisioning of devices and services as well as automatic adjustment of WiFi channels to ensure peak performance.
    • 6GHz Spectrum and WiFi 6E: With so many new connected devices competing for available channels and bandwidth on both the 2.4GHz and 5GHz frequency bands, the WiFi Alliance is introducing WiFi 6E, which uses the unlicensed 6GHz band. In 2020, we expect that many countries will provide access to the 6GHz band. This means that a huge chunk of unused spectrum will become available for the growing number of residential and enterprise WiFi devices. More importantly for cellular operators rolling out 5G networks, the 6GHz spectrum band will allow the provision of seamless handoffs to mobile devices in homes and offices where their networks might have had difficulty penetrating walls and treated windows. There has been much discussion about the pending boom in AR (Augmented Reality) and VR (Virtual Reality) applications for a number of years. With the availability of the 6GHz spectrum, those applications can be delivered, in theory, without fear of latency due to channel contention. 6GHz will provide fourteen additional 80MHz channels and seven 160MHz channels. These will be needed for the intense, high-bandwidth applications.
    • Simplified Control: If you were to compare the user interfaces (UIs) of home gateways and routers from just two years ago to those available today, you’d be hard-pressed to find an area that has seen more positive evolution. But 2020 will see even greater transformation in an effort to give subscribers total and intuitive control over their broadband subscriptions. Voice control of broadband services is one of the areas that we expect will see the most growth. Google’s Nest WiFi mesh systems now include voice control and allow users to verbally turn on a guest network, reboot the system, and initiate parental controls and speed tests. Quietly – and just before the end of last year – Amazon announced Alexa-enabled voice control of its eero routers as well as those from ARRIS/Commscope, Asus, Belkin, Netgear, and TP-LINK. The feature is called Alexa WiFi Access. We expect to see this service integrated across a wider range of devices during the year, including integration into service provider-supplied gateways, particularly those from U.S. cable operators.

These technology developments, coupled with the ratcheting up of competition between service providers and consumer electronics companies for home network dominance, will allow consumers to have substantially better control of their WiFi networks in 2020.

Fast-Tracking DOCSIS 4.0, DAA, and 10Gbps

It seems like just yesterday when details emerged surrounding DOCSIS 4.0, which combines two next-generation technology options for cable operators — Extended Spectrum DOCSIS (ESD) and Full Duplex DOCSIS (FDX) — into a single standard with the aim of delivering 10Gbps services to all customers. CableLabs started drafting the specifications last year. Just this week, the company confirmed that the draft version will become available in the first half of 2020.

At the same time, cable operators are expected to launch their first 10Gbps services this year. However, these deployments are not expected to be tied to the DOCSIS 4.0 specification. Instead, they will rely on 10G EPON from remote OLTs located in traditional optical node housings. While focused on Full Duplex DOCSIS to support the mass market delivery of 10Gbps services to existing residential customers, Comcast is also sprinkling in 10G EPON in greenfield deployments, particularly in regions where it competes with fiber-based ISPs. Other cable operators are following a similar path. But instead of Full Duplex DOCSIS, they will rely on ESD. In both cases, outside plant spectrum will be increased to 1.8GHz.

Regardless of which DOCSIS 4.0 technology path a cable operator decides to follow, a precursor to these deployments will be the rollout of distributed access networks. With the DOCSIS 4.0 standard establishing a clear path forward, cable operators can now move ahead with their remote PHY and remote MACPHY deployments to solve immediate headend space and power consumption issues. At the same time, they can feel confident that any DOCSIS 4.0 technology decision they make will start them on the path toward 10Gbps services.

In 2020, we expect cable operators to ramp up their spending on upstream channel capacity in an effort to improve the subscriber experience with services such as online gaming, as well as reducing the time it takes to upload videos to the cloud. A number of operators have already moved to, or are in the process of moving to, mid-split architectures as they pull fiber deeper into their networks. Mid-split architectures allow cable operators to increase upstream capacity from 5-42MHz to 85MHz, providing a theoretical maximum of around 300Mbps of upstream bandwidth. Like DAA, moving to mid-split is another step on the path toward DOCSIS 4.0. With the implementation of 1.8GHz of spectrum, mid-split will allow an upstream path to span up to 684MHz, a nearly 10x improvement over today’s prevailing upstream rates. More importantly, the move to 1.8GHz will allow operators to flexibly operate on six different upstream path splits, resulting in multi-gigabit services.

Other Trends to Watch

In addition to these trends, we expect to see a significant jump in virtualized access platform deployments. The second half of 2019 saw a major ramp in virtual CCAP deployments. Once again, this growth was largely driven by Comcast, as it continues to expand its R-PHY deployments. We expect this trend to continue both within Comcast and among its peers, particularly Cox Communications and Videotron in Canada.

Outside of cable, we expect to see AT&T make headway in its virtual OLT rollout using XGS-PON. In September, the operator said that it expected to have 100% of its core network traffic controlled by SDN. This was step one in its long-term CORD vision. Access platforms, such as OLTs, will receive the virtualization focus in step two. Though we don’t expect to see any pure white box OLTs in AT&T’s production network in 2020, we do expect to see announcements of SDN control of a good portion of the operator’s access network by the end of the year.

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Whether spurred by the looming rollouts of 5G services or the continued attrition of video subscribers and revenue, fixed broadband technologies, services, and business strategies have changed. Whereas operators were once focused on driving scale across multiple areas of their business, in many cases, the focus currently is firmly squared on fixed broadband. And why not? For most North American operators, service margins for residential fixed broadband hover between 60-70%, while video margins have seen steady declines of approximately 15% over the last five years, pushing average margins below 15%, in some cases.

Scaling broadband services, however, is tricky because achieving scale involves any combination of bandwidth, network platforms, CPE, test and measurement equipment, as well as personnel to support both the upgrades and ongoing maintenance. These challenges are faced by all broadband service providers and are certainly not limited to cable or telco operators alone.

Shared challenges, as well as the standards and technologies to overcome them, is a big reason why I decided to combine my perspectives on the recent Cable-Tec Expo and Broadband World Forum shows into a single article. Because no matter where you look, the almost universal focus for all broadband service providers for addressing their scaling challenges is through virtualization. The topic occupied most of my discussions at both events and will only grow as we progress through 2020 and beyond.

Cable’s Clear Use Case for Virtualization

Cable operators are intimately familiar with the challenges of scaling their broadband networks to support downstream bandwidth consumption CAGRs still hovering in the 25-35% range. To deliver more bandwidth, MSOs traditionally have had to split their optical nodes to reduce service group sizes. Each node split, however, requires more passive and active equipment, including splitters, combiners, receivers, and transmitters. More importantly for opex is the need to increase the number of hardware-based CCAP platforms to support the additional bandwidth and service groups. The net result is a significant increase in space and power requirements in both headend and hub sites, as well as additional complexity in fiber cabling requirements.

With the ultimate goal of delivering multi-gigabit services to subscribers, this traditional model of adding hardware to enable a consistent increase in overall bandwidth is simply unsustainable, especially when cable operators are also trying to reduce their real estate footprint by reducing total headend and secondary hub site facilities.

Obviously, Comcast has taken a lead role in pushing virtualization and it provided an informative overview of its progress. For me, there were three key benefits Comcast either explicitly or implicitly communicated during the event about their virtualization efforts:

  1. Even if Comcast moves away from its plan of delivering full-duplex (symmetric 10 Gbps) services in a node + zero environment, a virtualized CCAP core gives them the ability to scale at their own pace and at any location. Servers could still be located in existing headends or primary hub sites, or they could be deployed in centralized data centers. With workload balancing across their CCAP core servers, there are effectively no restrictions on where Comcast can grow its capacity.
  2. The virtual CCAP core almost eliminates the extended maintenance windows often required for software and firmware upgrades of traditional CCAP platforms. With increasing restrictions on service downtimes, operators frequently push those limits when they have complex upgrades to complete across their entire CCAP footprint. The virtual CCAP core takes those software and firmware upgrades and makes them microservices, allowing them to be digested and completed without complete reboots of the platform. That results in almost minimal downtime for subscribers. Even if there is downtime, it can be isolated to a service group size of 250 homes or less (and declining,) as opposed to the potential 100k to 250k subscribers that are traditionally impacted when a CCAP chassis goes down.
  3. Comcast fully believes that other cable operators can benefit from their virtual CCAP core architecture, and they intend to license it just as they have done with their X1 video platform. There are, of course, questions around just how that licensing model might work and how revenue might be distributed between Comcast and Harmonic, its vCCAP partner. But it’s clear that Comcast is leaving the door wide open to profiting from its software development work. Obviously, this could have negative impacts on the traditional CCAP vendors, as the size of their addressable market shrinks. However, only a few operators have thus far licensed Comcast’s X1 platform, and it stands to reason that an even smaller number would want to entrust the most important service in their portfolio to the operator.

Really, Comcast’s progress on virtualization is just the beginning. Yes, it satisfies a short-term requirement to be able to scale to support consistent increases in fixed broadband speeds. But the longer-term potential for supporting edge computing and processing for more complex IoT and 5G backhaul applications also requires this transition away from dedicated hardware platforms.

Multi-Vendor, Multi-Service Requirements Drive Telcos’ Virtualization Efforts

Multi-service support, which is still on the horizon for most cable operators, is a reality today for a number of operators who are moving forward with the virtualization of their access networks. That reality has been reflected in increasing discussions and focuses on VOLTHA (Virtual OLT Hardware Abstraction,) currently for XGS-PON deployments, but with an eye towards G.fast deployments, as well.

VOLTHA is a well-known, open-source standard, at this point, designed to simplify traditional PON architectures by abstracting PON-related elements such as OMCI and GEM, and allowing an SDN controller to treat each PON OLT as a programmable switch, independent of any vendor’s hardware.

Whereas cable operators are virtualizing currently to scale for more bandwidth, for telcos, that is just one piece of the puzzle. They are virtualizing to scale for bandwidth, certainly, but also for 4G and 5G backhaul, and enterprise PON and WiFi backhaul. In addition, telco operators are also looking to more easily manage multi-vendor and multi-technology environments, where physical layer technologies, such as G.fast and GPON are all managed in a similar manner from a central location. In such cases, the elements associated with each physical layer technology are abstracted, allowing for easy migration from one technology to the next, as well as a unified management and troubleshooting plan across all technologies.

During Broadband World Forum, discussions centered on actual deployments of virtualized, software-defined access networks were plentiful. This was a significant change from previous years when the technologies were still relegated to lab environments. Beyond an increase in the maturity of the technologies, the focus on virtualization has come about partially because of how service providers are either deploying or accessing fiber assets. In a growing number of cases, service providers are leasing fiber to fill in service area gaps, or they are partnering with other operators to share the costs of deploying fiber. In these cases, where service providers have equipment on their own fiber, on leased fiber lines, or even leased access to the fiber owner’s OLTs, virtualized infrastructure simplifies the management of these network elements by abstracting the specific PON elements of multiple vendors and enabling their provisioning and management from a single, centralized controller.

For many years, multi-vendor access network deployments were a stated goal of major network operators. However, very few ever became reality, due to unique management complexities associated with each vendor’s implementation. Virtualization finally makes this a reality by essentially treating each active network element as an equal node. One node could be an OLT, another could be a DSLAM or G.fast DPU, while another could be a fixed wireless access point. All can be provided by different vendors, while still being managed centrally by a software controller.

Though multi-vendor, multi-service environments remain the exception rather than the rule, the progress being made to make these a reality through virtualization will continue to ramp up through 2020 and beyond. We should expect to see some novel business models emerge next year, especially in the areas of open access networks, where ISPs virtually lease access through network slicing. These models are already emerging in Europe and Latin America, and we expect them to expand in these two regions next year.

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For many years now, the evolution of WiFi has been focused on improving two key technical attributes: speed and range. WiFi 6, however, is the first iteration to take a more holistic view of wireless technology that encompasses not only improvements in speed and range, but also network intelligence, analytics, and power efficiency. It is the first WiFi standard developed specifically for a world defined by the IoT and the consistent proliferation of connected devices.

WiFi 6 also comes at a critical time for global service providers looking to extend their broadband service portfolios into the home while facing increasing competition from other ISPs and consumer electronics providers also seeking to dominate that service space. WiFi 6 will undoubtedly boost the connected home service offerings of those service providers willing to embrace the technology, and make it available across their CPE and home networking equipment. It will quickly become a technology that subscribers will expect as a standard part of their in-home broadband experience. In fact, Dell’Oro Group expects that total WiFi 6 CPE shipments, including retail WiFi routers for residential and SOHO applications, will grow from just over 5 million units in 2019 to more than 23 million units in 2020, with further expansion expected through 2023.

WiFi 6 also has the capacity to dramatically improve how service providers will be able to provision, manage, troubleshoot, and analyze their in-home networking services. It provides options for the remote, zero-touch provisioning of devices and services, as well as the automatic adjustment of WiFi channels to ensure peak performance. As subscribers become savvier about broadband and WiFi, and as they become more reliant on broadband to enable multiple services in their home, they will demand uninterrupted service. With WiFi 6, service providers will finally have the power to deliver on those expectations.

New Features Deliver Speed Intelligently and Efficiently

Speed boosts are an essential feature of any new WiFi standard. Given its many key technical upgrades, WiFi 6 is quickly emerging as the first standard that is designed for the gigabit age and beyond, with a focus on providing a theoretical maximum of 10Gbps of throughput. The goal of this standard is to ensure that a customer’s WiFi network will not impede the delivery of high-bandwidth, latency-sensitive services such as cloud gaming, 8k video, and cloud VR services. These feature additions are especially critical for service providers that offer managed home networking services because subscribers have proven quite willing to use speed tests to verify the performance and value of their end-to-end broadband service.

But beyond increased speed and range, taken together, all of the features described above are designed to deliver stable, consistent performance not just to a handful of devices in the home, but potentially to hundreds of connected devices.

Perhaps the most important feature of WiFi 6 is OFDMA (Orthogonal Frequency Division Multiple Access). OFDMA allows WiFi routers and access points to divide multiple channels—on either the 2.4GHz or 5GHz frequency band—into smaller allocations called resource units (RUs). Each RU can then be divided into yet smaller channels, with that traffic earmarked simultaneously for multiple devices. Each of those devices can have dramatically different traffic profiles (e.g., a TV that is streaming an 8k movie and a connected thermostat communicating with a cloud-based analytics engine).

The net result is a reduction in latency for connected devices and an increase in the aggregate throughput across the wireless network. WiFi 6 adds both uplink and downlink OFDMA, meaning that routers and CPE can intelligently allocate different levels of transmit and receive power per connected device, depending on variables such as distance, noise, and other signal impediments.

OFDMA complements another feature that has been enhanced in WiFi 6: MU-MIMO (Multi-User, Multiple Input, Multiple Output). MU-MIMO was included as part of the WiFi 5 (802.11ac) standard, but it was limited to downlink signals from the router to end devices. WiFi 6 includes uplink signals from multiple devices, and it doubles the number of devices that can be supported from four to eight. While OFDMA divides channels into resource units to be allocated across multiple devices, MU-MIMO multiplexes transmit and receive traffic from multiple devices based on their proximity to the router and to each other. This streamlines traffic patterns and reduces latency by more intelligently allocating spectrum across multiple devices, as opposed to serving devices sequentially.

In addition, WiFi 6 adds the ability to support up to eight separate spatial streams using beamforming, which allows the router to allocate additional throughput to particular devices at a given range.

WiFi 6’s final major upgrade that improves overall speed and throughput is the increase in QAM (Quadrature Amplitude Modulation) from 256-QAM to 1024-QAM. This allows devices to send ten digits of binary code with each transmission to the router. According to the WiFi Alliance, this will increase throughput by 25-30% versus WiFi 5. This upgrade is critical for supporting today’s very high-bandwidth, latency-insensitive applications and services, as well as those anticipated in the next five years.

Smarter Management of Connected Devices

Of course, speed improvements are expected. Video streaming, online gaming, and other applications that continue to grow immensely in popularity and capability demand consistent speed and performance upgrades.

But home and connectivity requirements are changing. Just as the use of high-end applications is increasing, so is consumer reliance on myriad connected devices, including smart speakers, sensors, thermostats, and home security systems. Indeed, these devices are quickly becoming the ones we interact with most often on a daily basis. Though our interactions with such devices are short in duration, we expect that they will work perfectly every single time we interact with them.

Poor battery life is one of the main culprits that causes connected devices to underperform or flat out the malfunction. To ensure that these devices draw as little power as possible, thus improving battery life, WiFi 6 incorporates a feature called target wake time (TWT). TWT allows the router to set a schedule for connected devices to ping it to report their status; thus, devices do not have to fight for the channel spectrum to complete their communication. Each device can be guaranteed an optimal slot to ping the router, and it can remain in battery-saving sleep mode for a longer time.

How Service Providers can use WiFi 6 to their Advantage

According to Dell’Oro Group, as of the first half of 2019, approximately 85% of all broadband CPE (Cable, DSL, and PON) includes embedded WLAN capabilities. That is up from 63% in 2015. As these percentages have increased, so has the number of operators providing managed home WiFi services to their customers to increase broadband service revenue while also reducing churn by anticipating and reducing WiFi outages.

Within that same time frame, broadband and WiFi have become essential applications and experience enablers. From social networking to cloud gaming, telemedicine, and VR, broadband and WiFi are viewed as critical offerings. Because of its enhanced throughput, range, and overall performance, WiFi 6 will open up a whole new world of applications and services formerly unavailable at consistent levels. Obviously, true gigabit broadband services throughout the home will serve as the backbone service for network operators and consumers. From there, cloud gaming across multiple devices and with simultaneous usage become available, followed by true virtual and augmented reality services. WiFi 6 is a necessary precursor for these advanced services.

Service providers can start with the rollout of WiFi 6-enabled CPE to demonstrate their commitment to delivering the best wireless networking experience for their subscribers. Once WiFi 6-enabled devices are in the home, additional services that take advantage of the technology’s enhancements are sure to follow. Providers can bundle smart home devices alongside their upgraded CPE, marketing those devices as ‘optimized for WiFi 6.’

In addition, service providers can offer a range of CPE that is customized to the unique needs of their subscribers’ homes. For example, mesh routers can be used to enhance coverage in larger homes, homes with a significant number of dead spots, or homes with 4k and 8k TVs and displays in multiple rooms. The goal, of course, is to deliver sustained and consistent gigabit access to every device that requires it.

The industry is already seeing tremendous growth in mesh routers, both in retail outlets and directly from service providers. Operators are becoming smarter about identifying when mesh routers are required through delivering apps that allow new subscribers to describe their homes, the placement of their routers, and the types of devices throughout the home that might require closer proximity to a mesh base station or satellite.

By providing this type of indirect network consulting, a service provider ensures that it is a trusted partner for its subscribers, instead of simply being a company that turns on broadband service and then sends a bill.

Beyond improving connectivity and WiFi performance through the deployment of new networking terminals, service providers must also layer in remote provisioning, troubleshooting, and advanced analytics to enable the zero-touch installation and management of WiFi services. As service providers expand their presence in the home, they want to avoid having to respond to a phone call or roll a truck every time network performance is impacted by weather, the addition of a new device, or channel contention with a neighbor’s access point.

WiFi 6 eliminates a number of these issues and allows operators to constantly monitor the performance of their CPE, including mesh base stations and satellites, and to verify a customer’s service level remotely. New broadband subscribers can request service, be sent the appropriate devices, and have service turned on in their homes, all with a simple phone call to their service provider. The service provider can offer a range of additional managed WiFi services, depending on the needs of each subscriber.

Service providers continue to invest in upgrades to their access network infrastructure to support gigabit speeds and services, and WiFi 6 home networking technology is ideal for extending this investment in-home service capabilities with reliability. The network no longer stops just outside the subscriber’s door. Instead, the service provider’s network extends into the home, creating and defining the subscriber’s daily interactions with that network operator. Thus, operators must treat their gigabit WiFi offerings just as they would any other network service. If a service provider’s throughput, reliability, and overall performance are underwhelming, subscribers will quickly cancel the service in favor of a competitor’s.

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Amazon’s latest acquisition in its ever-growing WiFi technology platform is the mesh networking pioneer eero systems. The deal was announced on February 11, 2019.

Eero, along with Luma, was among the first home networking suppliers to optimize enterprise-grade mesh networking technologies for residential CPE. This innovation meets two goals: improving WiFi coverage by using a series of mesh-connected access points and providing an improved level of network control when compared to the clunky user interfaces typically found on WiFi routers.

Eero’s products and platforms address a growing set of problems with home WiFi. One common problem is that traditional home routers, while powerful enough to generate a signal for most of a home, often have limited and clunky user interfaces. This makes it challenging for users to set specific network parameters or preferences. A second problem in larger or older homes is that brick and cinder block walls can quickly dampen a WiFi signal, creating dead spots. Historically, these dead spots have been addressed through the use of WiFi extenders, which simply repeat the signal generated by the central access point.

However, the problem with traditional WiFi extenders is two-fold:

  • The extender can only do its job when it can detect the original WiFi signal.
  • Each time the signal is repeated or extended, signal loss occurs to the tune of a 30% to 60% reduction in throughput.

Mesh networking capabilities from Plume, eero, Luma, Google, NetGear, D-Link, and similar companies do a far better job of maintaining a clean wireless signal though they still rely on signal repetition. By spacing multiple units throughout a home, these systems effectively create multi-hop communications for wireless devices. Essentially, when a wireless device receives or transmits data, it is either the first leg or anchor in a WiFi relay race. The data transfer then hops from one access point to another until it reaches the primary access point, which is connected to the DSL, cable, or fiber gateway. The multi-hop attributes of a mesh network reduce the distance the wireless signal must hop from one point to the next.

Just as important as strengthening the home WiFi signal is the increased control users will have over their home WiFi experience. Eero’s access points and smart home manager app will allow users to control their WiFi networks, passwords, and devices. Control over the home network experience is being fought over by consumer electronics companies and broadband service providers alike.

Tying together the Amazon home experience

Eero adds a major puzzle piece to Amazon’s long-term plan to own the in-home IoT experience. Between Fire Sticks, Fire TVs, Ring video doorbells, Echo devices, and a growing list of appliances and consumer electronics with Alexa voice capabilities, pre-integrated, eero access points can ensure that these devices stay connected all the time.

Early on, eero differentiated itself from other mesh networking suppliers by including 802.15.4 radios on each of its access points. The 802.15.4 is an IEEE standard, designed for low-data rate and low-power consumption wireless communications. It is part of the 802.15 group of standards for what are called wireless personal access networks (WPANs). For example, 802.15.1 is for Bluetooth.

The 802.15.4 standard defines the MAC and PHY layers of the OSI model and provides a basis for other protocols and features to be added in layers 3 through 7. ZigBee, Z-Wave, WeMo, and Thread are common protocol stacks relying on the 802.15.4 standard. The eero devices currently use Thread, but nothing is stopping Amazon from incorporating its favored Z-Wave protocol on these devices. Z-Wave is Amazon’s home automation protocol of choice, as it is used in its Echo Show and Echo Plus home hub devices. Also, a much larger ecosystem of sensors, light bulbs, and other home automation devices relies on Z-Wave.

In fact, I fully expect Amazon to quickly provide eero mesh units using the Z-Wave protocol stack, so that the units could act as distributed home hubs. This would allow users to place smart devices throughout their home, rather than limiting them to areas near a home hub unit. Keep in mind that Z-Wave has a functional distance limit of 300 feet. In larger homes, for which eero access points are ideal, eero can eliminate WiFi dead spots, while also connecting bedroom light bulbs, window sensors, and other Z-Wave devices.

I don’t believe Amazon will integrate an eero-style access point into any of its Echo series of devices, as some have suggested. Amazon wouldn’t have bought eero if that was its strategy. Besides, the Echo devices already pump out their own limited WiFi signal. There is no need to raise its bill of materials (BOM) cost by adding a more complex WiFi chip and series of antenna arrays. After all, the purpose of Echo devices is to provide a voice-based connection to Amazon-hosted services and content, not to become expensive, all-in-one devices.

Eero gives Amazon a way to ensure always-on WiFi connectivity at home. This, in itself, is critical to the performance of Amazon services. More importantly, eero gives Amazon insight into how broadband customers use their home Internet service, which devices they use to access the Internet, and when and how the devices are used. Eero is invasive, for certain. As with any service, users will have to weigh the convenience offered against their privacy concerns.

But you can imagine a scenario where Amazon uses the data collected from eero access points to recommend smart light bulbs, DIY home security systems, window sensors, connected TVs, and other devices based on your data consumption habits and current network setup, among other parameters.

Beyond that, Amazon primarily wants to ensure that the content and services you rely on–including Amazon Video, Music, and Audible–all are performing at their peak. By providing home connectivity, Amazon can also more accurately identify the source of issues delivering 4K UHD video content. Is the problem at home, within the Amazon Web Services CDN, or in the broadband provider’s network? When you don’t own the pipe into the home but own everything else, being able to eliminate your network as the locus of the problem is absolutely critical.

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About the Broadband Access Market Research Report:

The Dell’Oro Group Broadband Access Report provides a complete overview of the Broadband Access market with tables covering manufacturers’ revenue, average selling prices, and port/unit shipments for Cable, DSL, and PON equipment.  Covered equipment includes Converged Cable Access Platforms (CCAP) and Distributed Access Architectures (DAA), Digital Subscriber Line Access Multiplexers ([DSLAMs] by technology ADSL/ADSL2+, G.SHDSL, VDSL, G.FAST), and PON Optical Line Terminals (OLTs), as well as all Cable, DSL, and PON CPE (Customer Premises Equipment.)