Wi-Fi – “the toy that grew up”

Reprinted from the Wireless Broadband Association: Industry News Roundup

Wi-Fi – “the toy that grew up”

Historically, Mobile Network Operators (MNOs) looked at Wi-Fi as a toy, a low-end technology that was great to off-load data from networks. Now Wi-Fi is having a strategic impact on MNOs across the globe. Now the question is LTE or Wi-Fi: remind me which one’s for off-load?

Yet, as with many technical innovations, the low-end always wins. Wi-Fi is a classic example of this theory. Through a combination of Moore’s Law, economies of scale, R&D investments and free market dynamics Wi-Fi is king of the hill. In most developed countries people and things can access a Wi-Fi network in 80% of locations. Companies, such as Devicescape, have created virtual networks based on “ambient’ Wi-Fi networks. Hotspots are so ubiquitous that Opensignal launched an application to find the best one out of the many available.

Wi-Fi and Hotspots are becoming strategic to all carriers (fixed and mobile) as they have realized the importance of keeping traffic on their network for quality of experience and billing purposes. The market for carrier Wi-Fi gear continues to grow as carriers look to exploit these opportunities.

Today, high- speed access to the Internet is as fundamental as indoor plumbing. People expect it and city and national governments view it as mandatory for many economic development and quality of life issues. With the ubiquity of Wi-Fi enabled devices and the simplicity of Wi-Fi deployments it is no surprise that Wi-Fi is a leading candidate to achieve this. Even in remote,rural and under-developed regions, Wi-Fi leads the ways.

Even with fierce competition from ZigBee and other alternatives Wi-Fi is also a leading network technology for applications using IoT technologies. Wearables are no exception. LG smart watches use Wi-Fi and researchers are looking to Wi-Fi for an entire body network. We could all become Wi-Fi access points.

Yet success breeds challenges. Wi-Fi uses attractive unlicensed frequency bands and the licensed crowd wants in as the LTE community is looking to use the same 5 Ghz frequency band. Trying to head off a battle royale, the U.S. FCC has already entered the fray.

Wi-Fi, the toy that grew up, continues its momentum to solve real problems for consumers, businesses, service providers and governments. It was often said never to bet against Ethernet, I’d like to add never bet against Wi-Fi.

Greg Whelan, ACG Research

To discuss this and other strategic technology issues impacting the global service provider market please contact me

Nokia and Alcatel-Lucent: Who Should Buy Who?

Seeking Alpha reported that Nokia confirmed it is in talks to acquire all or part of Alcatel-Lucent and it is no surprise the companes are quibbling over valuation. Alcatel-Lucent has gone through some tough times and appears to be executing well on its Shift plan. Arguably, they are undervalued but investors are waiting for more tangible results, which will indicate that the plan is working. Current shareholders and employees can sense this positive momentum and are remiss to “sell-out” before the results of their hard work and commitment are fully realized. 

Consolidation in the equipment market is not unexpected. Communication service providers are consolidating too and are getting bigger. When this occurs large equipment providers tend to consolidate as well as they have fewer large customers and need economies of scale to be successful. This is truly a zero-sum game. Either you get 70 percent of the business, 30 percent as a second, keep the first one honest, source or you get zero percent. With the inherent complexities of SDN, NFV and virtualization, particularly in multi-vendor integration, it may be years before the “second’ source is even added.

Driving this buyout could be Huawei. The company is disrupting the entire global telecommunication equipment market. The industry has been aware of the company’s “grey area” business practices such as outright appropriating technology and intellectual property to giving eNodeBs away for free, with customers just paying the yearly maintenance fees (with a bonus of dozens of undocumented back doors). Although this is disturbing to the industry what really is of concern is Huawei’s huge product portfolio, their ability to throw “armies” at initiatives and their ability to take a long-term view to market (and global) domination.

The big issue for either Nokia or Alcatel-Lucent is who is going to compete with Huawei? Communication networks are a fundamental asset to nation states. They drive economic development, entertainment, education, national security, etc. Perhaps it’s time all governments treat them as national assets.

The Next Cord Cutting: Real Cord Cutting

Today "cord cutting" refers to consumers who stop paying for TV and go broadband only from the cable or telecom company.  This is more accurately called "cord shaving".  The economic impact is significant but it's more of a redistribution.  More money to "Netflix" and less to the service provider for video.  Yet, more to the latter for higher capacity broadband that provides higher margins.

Tomorrow's "Real Cord Cutting" refers to consumers who completely stop all services from a wired service provider.  The go completely wireless.  We've seen the prequel with the elimination of a "home phone".  This next generation cord cutting has consumers relying on their 4G/LTE service for all broadband services.  This can be accomplished by simply turning their smart phone into a Wi-Fi access point when in their home.  The economic impacts of next generation real cord cutting are severe. The fixed access service provides not only lose all service revenues they lose customers entirely.

As 4G/LTE deployments expand and as more small cells get deployed the average bandwidth per device will increase substantially.  When the Netflix threshold (e.g., when the quality of streaming video is acceptable) is only a matter of time.  Slowing down real cord cutting will be the price of mobile data plans which will eliminate the intended savings in the first place.   Service providers with wireless assets will be in a strong position to succeed in this future scenario.  Other, such as cable MSOs will need to address their pricing plans which are driving customers away in the first place.  They can also compete with unique content, primarily "Sports and Wars", (i,e., live programming) and push for better quality video such as emerging 4K technologies.

Today's cord cutting is growing significantly especially in the under 30 demographic.  Tomorrow's real cord cutting will occur and will have substantial economic disruption for the entire ecosystem.


For past article please visit greywale.com 

The Last Mile.. All local loops are local.

This is a great quote that captures the real challenges of the last mile.  Notice these challenges are not technical.  To adapt a quote from Tip O'Neal (Speaker of the U.S. House (D-MA)  circa 1980s) ....  All local loops are local. 

"The last mile. It sounds easy, it's only a mile, after all – but the problem is, there are just so darned many of them. Wireless or Fixed, the last mile is a massive, poorly-scaling problem that manifests itself with trucks, cherry pickers, tower climbers, backhoes, manholes, labor unions, vandals, and byzantine local regulations and by-laws. What's to love? But as wireless modulation schemes approach the Shannon-Hartley limit, the last mile will increasingly be where we see networks scale to meet the surging demand for mobile capacity. "

From a meeting notice of the Telecom Council of Silicon Valley.

Is VoLTE Worth the Investment?

Mobile network operators across the globe are moving to deploying VoLTE (Voice over LTE) systems.  The reasons for this are as expected.  They include:

1. Better voice quality
2. Protect voice revenues
3. Leverage IMS investment
4. Be able to provide billing services (Leverage their billing system)
5. Migrate 2G and 3G voice services to LTE

However, given the successes of over-the-top (OTT) services over wired broadband and in current wireless networks is this billion dollar investment prudent?  Consider the following:

1. OTT has won, or is winning, the battles.  Skype and Netflix are two good examples.  WhatsApp is another case in point of OTT success. 
2. OTT services are “good enough”.  The majority of the market is unwilling to pay for QoS when a free, or near free, service is sufficient.
3. When a consumer experiences poor quality for an OTT service they blame the service provider and not the OTT provider.
4. QoS can only be guarantee when the “call” is completely on-net.  As soon as the voice call leaves the originating SP all bets are off.  Why spend the $ billions only for a subset of calls?
5. Voice revenue and now SMS Text revenues are crashing.   Why spend $ billions to chase a losing battle?
6. Service providers are moving away from call-based billing (i.e., CDRs (Call Detail Records)).  Although the NSA loves them.  Unlimited calls and texts are the norm. 
7. Data limits are prevalent.  A few Youtube videos or one Netflix movie will dwarf a month’s worth of phone calls from a data usage perspective. 
8. When Google deploys their fiber optic networks (e.g., Kansas City) they do not offer voice services.  The reason is to avoid the mountains of regulations required when offering voice services.    Does that mean people in Kansas City don’t make voice calls?  

It is understandable why a service provider with decades of legacy voice experience would want to consider VoLTE.  After all, they have decades of legacy voice experience.   Similarly, it’s not surprising that service providers that have spent $ billions and years deploying and perfecting IMS want to leverage that investment in time, money and careers.  It’s difficult to face reality that IMS is a “sunk cost” and therefore should not be factored in when evaluating VoLTE investments.

The OTT trends and successes cannot be refuted.  Service providers continue to face the fact that they cannot compete effectively against every segment of OTT services.  The $ billions they would spend on VoLTE would be better spent on: 

1. Increasing bandwidth per subscriber
2. Providing industry leading network security to protect their subscribers
3. Fighting the short sighted Net-Neutrality laws that make regulators “feel good” at the expense of long term viable markets.
4. Creating an infrastructure where OTT’s want to pay them for QoS in a fair, open and non-discriminatory manner. 

I’ve spent 20 years working on technologies with the goal to ensure service providers do not become a “dumb pipe”¹.   I am fully biased toward ensure the success of SPs and believe that “net neutrality” is unfair to them².  However, SPs should not spend $ billions on VoLTE just because it’s voice.  High speed, high quality broadband is the future.  Don’t fight it.

To discuss this please contact me at gwhelan@greywale.com

 Notes:       

1.  http://greywhalemanagement.blogspot.com/2012/07/if-sps-become-dumb-pipe-everybody-loses.html
2.  http://greywale.blogspot.com/2014/02/net-neutrality-overruled-win-for.html

 Click here for an INDEX of Articles and Post

Network PVR a Win for SPs and Consumers

Moving the "storage" function out of the Set-top box and in to the network is a win for both the service provider and for the consumer.  This article, written in ADD solving terseness,  will give the read an overview of the salient points of the benefits of deploying a network-based DVR or N-PVR.  Comments/corrections/suggestions are always welcomed.

What is N PVR?

1.       Network Personal Video Recorder (a.k.a. Network DVR)

2.       A DVR in the Cloud

3.       A user’s programming or content is stored on a server located within a service providers facility instead of stored on a hard disk drive embedded in a set-top box.

Benefits for Service Provider and Consumer

1. Enables SPs to remove costly storage in every STB.
1. One less device to fail.
2. Reduces cost per STB,  less stranded capital
3.  Reduces power consumption of STBs
1.   Helps achieve goals set in voluntary agreement (see: http://greywale.com/wp-content/uploads/2013/09/greywale-communique-STB-010614.pdf)
2. Makes whole home DVR simpler
1.  All traffic originates from the network to any device (TV, PC, Tablet, Smart phone et al.)
2. Transparent to user
3.  Simplifies home networking, re-use existing networks such as WiFi,  No need for a new technology.
3. Enables TV-Everywhere or video everywhere and advanced video services
1. A single seamless video experience across all devices/screens.
2. Pause on one screen; resume on another screen is simplified.
3. Watch “save” programming on any device at any location.
   
4. Enables location-based targeted advertising
1.  Ads can be “re-inserted” to location user is actually watching stored content.
2. No need to play Boston Ads if user is watching Red Sox game in San  Francisco.
3. Enhances advertising packages to ad buyers.
4. Enhances viewing experience of consumer since ads are more relevant.
5. Increases ad revenues
5. Reduces usage and congestion of upstream bandwidth
1.  Eliminates the need for Sling Box
1. Sling box clogs limited upstream last mile channels
2. N-PVR eliminates Sling Box zero revenue traffic
6. Enables SPs to take advantage of innovations in Content Delivery Systems and advanced caching technologies.
1. May already be implemented for Video on Demand.
7. Enables smart phone to become DVR controller
1.  Guide on smart phone delivered from network
2.   “record” in network
8. Leverages investments in cloud infrastructure
1.  ROI of data centers investment will be enhanced with the addition of N-PVR application. 
9. CAVEAT
1.  As N-PVR rolls out, cache’s and servers may find themselves in facilities that aren’t as friendly as purpose built data centers.  These may include regional and local facilities such as central offices and head ends.
2.  Energy issues (e.g., heat) should be addressed.
10. LEGAL Issue
1. The Cablevision litigation in the U.S. has been resolved in Cablevision’s favor.
2. Content providers argued it violated copyright laws.
3. Cablevision argued it’s the same as a DVR just a different location.
4. After a number of rulings and subsequent appeals the U.S. Supreme Court refused to hear the case ending the litigation.
5. Recommendation to SPs…Deploy! 
11.  Technical Issues
1.  SP’s will need to have the stored programming in numerous formats applicable to specific devices.  i.e., different resolution and data rates for an HDTV verse a smart phone via 4G/LTE.
2. Do you translate and transcode on demand or ahead of time? 

   To discuss these issues please contact me at gwhelan@greywale.com

   For a list of previous articles please see   http://greywale.com/articles

A Telco Energy Strategy Should Demand ZERO Impact on Service

 As energy strategies reach the boardroom, service provider management should insist on “zero-impact” on services.  The stakes are too high in the competitive zero-sum game they participate in.  Customer satisfaction, reduced churn and a strong brand are paramount in this environment.  By treating energy as a strategic initiative they will achieve the benefits of lower OPEX, enhance brand and more efficient end-to-end operations.  Tactical energy initiatives will not get funded if they have a perceivable adverse effect on consumer and business services.  These adverse effects could be short lived, as during installation, or long term, if, for example, latency is introduced.   Thus, their energy strategy should demand zero impact on services.

Note the emphasis on “services” instead of “network”.    It would be unreasonable to demand zero impact on the network if you are deploying a new architecture or energy aware protocol.  Yet, with IP (Internet Protocol) the impact on the network should not cause the perceivable impact on services. 

Is zero-impact unreasonable and wouldn’t “minimal impact” be a better goal?  The challenge here would be to define what “minimal” means?  Would it mean X amount of video anomalies per 30 minutes?  Why not X+1?  Would it mean Y dropped calls/tower/minute?  Why not Y+1?  Also, who defines X and Y? Would the CEO, CTO, or CMO define them?  Would international standards organizations set them? 

 Setting the goal of “Zero Impact” sends a clear message throughout the organization of what is expected.  Terms such as “sustainability” and “green” will have clearer meaning.  Green projects that make people feel good but have no financial justification will fail fast so the real winners can progress.  Therefore, telcos and service providers should demand Zero Impact on services.

Contact: Greg Whelan at gwhelan@greywale.com to discuss.

Click here for an INDEX of Articles and Post

Service Provider Energy Efficiency (SPEE) is Inevitable!

Network traffic is increasing exponentially and energy efficiency is increasing linearly.  Yet, network engineers are focused on, and measured on, scalability and availability.  They don’t see their energy expenses.   However, given the simple math of exponential verse linear growth it is inevitable that energy efficiency and energy management will be a primary driver in the near future. 

Energy Management: Focus of Nokia Siemens Networks

Nokia Siemens Networks (NSN) announced their Technology Vision 2020 recently.  Energy management was one of six major pillars.   The six pillars are:

1. Support up to 1000 times the capacity
2.  Reduce latency to milliseconds
3. Teach networks to be self-aware
4.  Flatten total energy consumption
5. Reinvent telcos for the cloud
6. Personalize network experience.

The key point regarding energy is illustrated in the following chart.

  

As shown, electricity alone accounts for 15% of total OPEX.  In developing markets this can be as high as 50% with a high percentage of off-grid sites.  If energy management is ignored the cost of power will continue to rise with the expected exponential growth in traffic.  The next chart illustrates that while traffic grows exponentially, energy efficiency grows linearly.  Thus, the amount and cost of energy will rapidly increase. 

Other key facts that NSN articulated are that the RAN (Radio Access Network) accounts for 80% of energy consumption and that current installed base-stations are 50% less efficient than new ones. 

As with any energy management and energy efficiency program there is no silver bullet or one solution to solve this.  However, there are numerous solutions when taken together add up to real savings in energy and money.  This area is too large for this short post.  For now, consider four main areas to investigate

1. Devices: Components, Moore's Law
2. Network Architectures
3. Network Management and Operations
4. Marketing and Services

By focusing on energy management and energy efficiency the end results will be meaningful OPEX savings, reduced carbon footprint and an enhance brand for sustainability conscious consumers.

Please contact me if you'd like to discuss this post.  +978 992 2203  gwhelan@greywale.com