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Posts Tagged ‘LTE’

Elastic Telecom networks: a path towards cellular network virtualization

Over the last few months we saw two big announcements for Telecom consolidation in the US from the 3rd and 4th largest carriers. Is this a surprise or what? By all means it is not – I have been busy lately studying demand and supply curves for my micro-economics class (part of my MBA program) and viola – this all makes perfect sense! It is all due to the economy of scale – the larger the firm is the better it is able to supply the service needed at a better rate (meaning lesser dollars!). The one graphic that is always hurting the budgets for carriers is the ARPU distribution and the long tail economics.

So what will happen over the next few years is a change from selling voice and data for MNOs to service enablers. This requires several market plays which require – two main factors investment dollars and partnerships with several niche market players and this will allow MNOs to move into the VAS space.

Several years ago Microsoft had a similar competition from the likes of Google which challenged the whole notion of selling licenses for an OS, Google brought in the concept of freemium play – give Android for free and sell the apps! A similar shift is happening today in the wireless ecosystem – old models need to be thrown out and value creation needs to shape the networks!

Operators need to take these steps for survival or be bought out –

Who is the competitor? The primary competitors for the telecom service providers had been the other service providers. However, over the course of last few years, players have been migrating and surfing in segments across the board – from Android, Apple to PayPal, from P&G to AT&T, from Facebook to Time Warner, from Google to Best Buy, every company wants to capture the mindshare and piece of the consumer’s pocketbook. The fine line between partners and competitors can get obliterated in a quarter. One product launch or one acquisition can change the game in an instant.

Deploy end-to-end framework starting with the mobile packet core & IMS: Innovation is not just for the edge network or the devices, but rather the entire mobile network from RNC, SGSN, GGSN, Billing systems to the devices should be available as a platform for innovation. Obviously, one can’t just open up all the critical pieces of information at once, it should be done in a methodical and thoughtful manner. In order to provide a good experience for the customer and a robust API framework for the developers, the various network component need to work in sync that help understand the user behavior at a granular level and turn observations into insights that can be exposed to the developers who can leverage the input by building new experiences.

Charge for OTT services: The consequences of not playing an active role in the OTT services can be severely detrimental to the operator profitability. Given that there is a significant pressure on the margins of the voice, access, and messaging businesses respectively, operators have to find new sources of sustainable revenues in the next 5 years or else accept to live with the decline of margins by 30-50%. Netflix, Pandora and several OTT products have created enormous inroads in terms of capital generation while the MNOs have passively seen their ARPU slip! Toll-free apps from AT&T are one step to correct that direction. A detailed explanation of the concept has been provided here in my blogpost.

Exploit the long tail: Voice, Access, and Messaging will continue to be the three dominant revenue generating applications for mobile operators for some time. However, the next bucket of revenue isn’t in any one or two applications but rather in the long-tail that can include hundreds of applications. While individually, they might not generate a significant amount of revenue, collectively, they can rival the top three in generating billions of dollars in the coming years. By focusing the vertical areas such as health, retail, education, energy and horizontal areas such as security, cloud computing, payments, and others, mobile operators can create a sustainable revenue source for the future.

Foster developer ecosystem and provide tools: Mobile operator VAS revenues are tightly linked to the developer ecosystem they are able to foster. Just like Android and iOS have huge developer following which is helping them dominate the mobile OS platform landscape, mobile operators who open up the APIs for network, billing, profile, authorization, location, performance, security, quality of service, etc. will build a robust ecosystem that churns up new services and applications that help drive enormous value to the end-customer. Directly or indirectly, this will add to the bottom line and the operator will be seen as a service innovator in the market place.  Application developers primarily focus on how their application or the service works. They rarely spend time on examining how the API request will impact the network. Operators need to setup testing labs and provide simulation tools to developers so that they are more informed about the traffic and signaling load generated by their applications and are better prepared to address data consumption issues. Here are some examples of the developer outreach that has happened over the years – AT&T, Verizon, Sprint, T-Mobile & Clearwire.

Creating value rather than nickel & dime for bytes: MNOs must manage their data margins but the pricing of data shouldn’t exclusively focus on the amount of data transmitted. A byte during a financial transaction or for a medical application is far more valuable than a byte transferred doing social networking updates. A health care application that provides peace of mind to family members might not send gigabytes of data but consumers are more interested in reliability and immediacy than the app tonnage. Remote monitoring apps can lower the overall cost for healthcare and insurance providers and they will not be measuring the cost of the app by amount of data transmitted but rather by the value it provides.

How can the MNOs play the space and get ahead of the game with the changes that will happen over the next few years. Below is a very good video describing the change model for next few years.

Read more…

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Understanding the Signaling Tsunami

A recent development of Tekelec as the diameter supplier for T-Mobile LTE deployment has once again brought forth the discussion of control plane congestion and the operator readiness to address the issues. I have been working on this area for a long time and have seen the impact first hand on several customer outages. 3GPP and the Infrastructure vendors have come a long way since the days when the first smartphones changed the trend of user behavior and network congestion. It is not just an improvement on the ‘plumbing’ of smart pipes but the overall change end-to-end that has helped mitigate many problems, both from a signaling as well as performance. QOE (quality of experience) plays a big role in network planning and management today, as users now demand more from a handset/tablet than ever before. Signaling plane control gives the operator a better leverage and control over the various elements of the network that handles customer management and quality of service along with it.

 

Understanding user behavior with Smartphones

User behavior in consuming more content than what is produced, the popularity of multimedia services and the lack of processing power on Smartphones results in far greater traffic flowing downstream into Smartphones than flowing upstream from Smartphones into the cloud. Naturally, communication channels are typically asymmetric reserving greater bandwidth for the downlink vs. the uplink. In spite of the asymmetric bandwidth allocation, mobile networks are seeing significant traffic pressure on the downlink due to the sheer number of applications using the networks and the multimedia heavy nature of the traffic generated by many of the applications.

In addition, a number of symmetric applications such as file sharing or Peer-to-Peer (P2P), mobile Voice over IP (VoIP) and gaming contribute to traffic on the downlink. However, P2P traffic has been on the decline over the last several years as first audio content and then video content became readily available through legitimate storefronts. In addition, relative to other traffic types, Mobile VoIP and Mobile Gaming are low bit rate services, which do not impact the overall traffic as much in spite of a very large number of concurrent sessions in use.

As Smartphones become more capable, services such as video conferencing, User Generated Content (UGC) uploads, P2P applications, video surveillance and augmented reality are gaining popularity. Further, as voice services transition to VoIP in LTE networks, the potential increased traffic from voice will also contribute to the uplink traffic mix. The aggregate of these services is making network capacity requirements more symmetric and resulting in significant pressure on the uplink capacity. Foreseeing this trend, HSPA and LTE have increased the relative throughput of the uplink vs. the downlink compared to earlier technologies18 and further LTE also allows for more flexible spectrum allocation to account for evolving network traffic usage patterns.

Nevertheless, until LTE is widely deployed, accelerated growth in uplink traffic will require immediate and unique solutions on deployed HSPA and HSPA+ networks. Machine-to-Machine (M2M) devices are expected to grow into a significant share of the devices on the network. These M2M applications have diverse network requirements varying from heavy signaling-low throughput in the case of geo-tracking to low signaling-high downlink throughput in the case of Near-Video On Demand (VOD) to low signaling-high uplink throughput in the case of webcams. Further, M2M applications may also be widely distributed in large numbers due to the low cost low maintenance nature of the Smartphones resulting in rapid growth in M2M traffic. In addition, the wide distribution of these devices will require remote manageability using OTA software updates further adding to the traffic demands on the network. Read more…

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Mobile Network Operators – retool, rethink & reinvent

 

 

 

 

Some time back I had an opportunity to speak with a technology pioneer, who helped introduce the best multi-media device – the iPhone on AT&T.  We went into the technical details of the experiences, the paradigm shift that never happened and the impending “data tsunami” that is happening as we speak. I have been blogging about this very data explosion for a long time now. I have been a traffic planner for the last 5-6 years of my career as a telecom engineer. I have seen the evolution of wireless networks from a voice centric GSM to a data centric-LTE, a shift in the thought processes of the big-iron telco companies that have shaped the way we communicate and interact with the world. MNOs (Mobile Network Operators) are in the cross hairs of technology evolution, data pipes are filling up faster that they can build. I monitor capacity at the Radio access side for an operator on a day-to-day basis, take my word for it – we ding your data experience at the cost of voice. I can say the same happens for many operators – it is what it is. Some operators had offered unlimited data and then pulled wool over your eyes by ‘throttling’ the user. Why does this happen, what prevents the MNOs to offer data at the promised speeds – the problems are umpteen and to take the bull by its horns is hard. Will 4G and LTE solve the problem? Initially it will, but as soon as more devices are offered, capacity will be the crunch point and techniques to optimize and improvise.

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Categories: LTE, Mobile Convergence Tags: , ,

Optimizing Mobile Web

 

 

Not all apps on our smartphones are created equal, just like how not all network technologies work the same. Some perform great and some not as much, but do we know how each one differs from the other? The other day I was discussing mobile applications with my wife who is a mobile developer when I realized that we as telecom network architects pay so little attention to the details of the design of mobile applications and their performance. It is not always about coverage and getting the best signal – indoors or outdoors. I was always aware of the implications of a badly designed mobile application going rogue as we had seen that a few years ago with Android launch  or a recent topic of NTT DO CO MO asking for help from Google. The rules for development have changed significantly and they are here to stay, as Apple goes into mobile publication and Amazon has democratized publication. I am all for democratization of the Mobile web – it is all about you – the user. The fundamentals of Mobile web design are – great UI, good performance and good experience.

Network Optimization

Networks have been built on the premise of – we build and they will come. It was the years before Apple and Google made their foray into wireless. A recent report says that there will be more smartphones than humans by the end of this year! What will that mean from a network perspective? It definitely bodes well for operators who are in it to make money, but will it kill their network with congestion? IPhone has definitely not helped the MNOs in monetizing terms. Read more…

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Categories: Mobile Web Tags: ,

LTE Connect Cars – the new social medium

 

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 Like most guys I love my car (after my gadgets & my Triumph) and like most of you I drool at the prospect of getting a car that will talk to me and connect all the pieces together. As a child, the first car that caught my imagination was Herbie (the wonderful little Bug), and its adventures. I make it a point annually to take my son to local car shows so that when he grows up he learns to appreciate the fact that fast cars are meant to be revered! But the connected car is something very special it connects what I do as a wireless engineer to what I love as a driver! So what is a connected car, will it talk to you? Listen to your commands and maybe drive for you – if you wait for say 10 years Google will make them and make them cheaper for you to actually get one. So my grandchildren will ask me how we ever lived without a self-driven car ever. Read more…

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