TechKnowledge Technology Stories (Series 1)

TechKnowledge is a series of Technology Stories looking at how technology has evolved over the years and how it will continue to evolve in the future. The series is targeted at youth looking to understand how technology has been evolving and how it will evolve further. It is our intention to make a ten part series but as of yet only four parts are complete. 

Part 1: 'Smaller, Faster, Cheaper and More…' looks at how technology has evolved by things getting smaller, faster, cheaper and much more. It investigates Moore’s law and how it has helped create a future technology roadmap.

Part 2: 'Connecting Everything Everywhere…' discusses different connectivity options available to connect various devices, gadgets and appliances to the internet. It highlights the fact that this is just the beginning, and everything that can be connected will eventually get connected.

Part 3: 'Satellites - Our Friends In The Sky…' discusses the fact that they are our friends and helpers in the sky. In discusses how satellites are useful as a connectivity option, how it helps us map and navigate, how we can use location based services, how we can watch broadcast video or listen to broadcast radio, and last but not least, how satellites are helping us observe and monitor the earth. 

Part 4: 'Devices and Gadgets - Our Companions and Life Savers…' looks at the fact that we use a variety of electronic devices/gadgets in our everyday lives to make it more convenient, efficient, and even keep us connected. From smartphones and laptops to smart home appliances and wearable tech, these devices simplify tasks, enhance productivity, and provide instant access to information and communication. They help us manage work, stay in touch with loved ones, and access entertainment on the go. Gadgets like fitness trackers promote healthier lifestyles, while others automate household chores, saving time and energy. Overall, the connected devices & gadgets have become essential tools in modern life, blending seamlessly into our routines and transforming how we live and interact.

The playlist of the videos is embedded below:

The slides can be downloaded from here.

Related Posts: 

• 3G4G: Free 2G, 3G, 4G & 5G Training Videos
• The 3G4G Blog: Explaining Telecoms
• The 3G4G Blog: Short Tutorial on Mission Critical Services in LTE and 5G
• The 3G4G Blog: Private Networks Introductory Series
• The 3G4G Blog: A Quick Introduction to 3GPP
• The 3G4G Blog: 5G and Cyber Security
• The 3G4G Blog: Tech Quotes we should know about - #TechQuotes
• The 3G4G Blog: Tech Laws we should all know about - #TechLaws 

How Many People are Still Unconnected in 2023 and Why?

I hear in many presentations that half the world is still unconnected so we need a solution XYZ. In this post I will explore how many people are really unconnected and why.

GSMA produces an annual report called "The State of Mobile Internet Connectivity Report". The latest issue from Nov 2022 explains the number of people that are still unconnected because of coverage gap or the usage gap. Quoting from the report:

(click to expand the image)

By the end of 2021, 4.3 billion people were using mobile internet, representing 55% of the world’s population, up from 31% in 2014 (see Figure 1). This translates into almost 300 million people coming online in the past year. Most of the people who started using mobile internet in 2021 came from LMICs (low and middle-income countries), where 94% of the unconnected population live.

By the end of 2021, the share of the world’s population living in areas without mobile broadband coverage stood at 5%, meaning that 400 million people are still not covered by a mobile broadband network. Since 2018, this coverage gap has reduced by only 1 pp a year (see Figure 1), highlighting how the remaining uncovered communities – which are predominantly rural, poor and sparsely populated – are the most challenging to reach in a financially sustainable manner. For example, in least developed countries (LDCs) almost 30% of people living in rural areas are still not covered by a mobile broadband network.

A much larger proportion of the unconnected live in areas already covered by mobile broadband networks. By the end of 2021, 40% of the world’s population (3.2 billion people) were living within the footprint of a mobile broadband network but not using mobile internet. While this usage gap remained relatively unchanged between 2014 and 2019, it declined by 300 million people (or 5 pp) over the past two years. However, the usage gap remains substantial and is now almost eight times the size of the coverage gap. It is worth noting that these numbers are for the total population, some of whom would never be expected to use the internet (e.g. young infants). Indeed, taking adults (18 years old and above) only, the usage gap stands at 25%, a much smaller though still significant gap.

The report further expands the reasons for usage gap as shown below:

(click to enlarge)

As can be seen, the reasons have been grouped in 5 major categories as follows:

• Literacy and digital skills
• I do not know how to access the internet on a mobile phone
• I have difficulties with reading and writing
• I find it difficult to use a mobile in general (calling, texting or mobile internet)
• I do not have time to learn how to use the internet on a mobile phone
• There is nobody to teach or help me to use mobile internet
• Relevance
• There is not enough in my own language on the internet
• I do not find the internet relevant enough for me (not useful or not interesting)
• Affordability
• The cost of buying a mobile phone that can access the internet is too high for me
• The cost of buying data to use the internet on my mobile is too high for me
• Safety and security
• I am concerned that I would receive unwanted contact from people online (e.g. scam emails or unwanted messages)
• I am concerned that it might expose myself or my family to harmful content
• I am concerned that my identity or other private information will be stolen or misused
• Access
• There is limited or no coverage to access the internet in my area
• Using the internet on my mobile phone is too slow (e.g. connection speeds)
• My family does not approve of me using the internet on a mobile phone
• It is hard to find a mobile phone agent or representative to buy mobile internet data from
• Using the internet on my mobile phone uses too much battery
• I cannot borrow or pay to use internet on another person’s phone
• It is hard to find somewhere to buy a mobile phone which is able to connect to the internet

There are many reports of blackmail and extortion cases in India that are linked to mobile phones and internet. You can read about them here and here. These also discourage a lot of people to embrace smartphones, especially women.  

Although women account for close to half the world's population, 259 million fewer women have access to the Internet than men.
The #GenderGap in lower-income nations has not improved since 2019 https://t.co/NSO6FZi15s #ITUdata pic.twitter.com/BnMIbe1tgF

— Int’l Telecommunication Union (@ITU) December 29, 2022

Although women account for close to half the world's population, according to a UN report on gender digital divide, 259 million fewer women have access to the Internet than men in 2022. 

I hope that the next time presenters are talking about the number of unconnected people, they put things in context and mention the connectivity and the usage gap. 

Finally, here is a webinar recording from M4D discussing the latest trends in global connectivity from The State of Mobile Internet Connectivity Report 2022:

Related Posts: 

• The 3G4G Blog: Facebook's Attempt to Connect the Unconnected
• The 3G4G Blog: Connecting the Unconnected in Peru with Internet para todos 
• The 3G4G Blog - Telefonica: Big Data, Machine Learning (ML) and Artificial Intelligence (AI) to Connect the Unconnected
• Telecoms Infrastructure Blog: Africa Mobile Network and MTN connecting Zambia
• Telecoms Infrastructure Blog: AMN's Ultra-low cost sites
• Telecoms Infrastructure Blog: Vodafone UK improving coverage with Phone Boxes, Mini-masts & Manhole Covers
• Telecoms Infrastructure Blog: Small Cells in BT Phone Boxes
• Telecoms Infrastructure Blog: Bigbelly's Telebelly Small Cells to Connect Rural and Urban Users
• The 3G4G Blog: When will 2G & 3G be switched off now that 5G is here?
• The 3G4G Blog: Can KaiOS accelerate the transition from 2G / 3G to 4G? 

Introduction to Fixed Wireless Access (FWA)

We have just produced a new tutorial on Fixed Wireless Access (FWA). The high level introductory tutorial looks at what is meant by Fixed Wireless Access, which is being touted as one of the initial 5G use cases. This presentation introduces FWA and looks at a practical deployment example.

According to GSA report, "Global Progress to 5G – Trials, Deployments and Launches", July 2018:

One use-case that has gained prominence is the use of 5G to deliver fixed wireless broadband services. We have identified 20 tests so far that have specifically focused on the fixed wireless access (FWA) use-case, which is five more than three months ago.

Embedded below is the video and presentation of the FWA tutorial.

Beginners: Fixed Wireless Access (FWA) from 3G4G

If you found this useful, you would be interested in other tutorials on the 3G4G website here.

Related Posts:

• Keima: Automated 4G / 5G HetNet Design
• 5G Network Architecture Options (Updated)

Small Cells, Macrocells, Backhaul, Infrastructure and other connectivity solutions from #MWC18

Well, it was officially 3G4G's first Mobile World Congress so I took time to go through the different booths, demos, etc. and compile a small presentation

Our first official #MWC18 thanks to @Parallel_tw. Do wave to @zahidtg when you see him around pic.twitter.com/ETR9oU21z9

— 3G4G (@3g4gUK) February 26, 2018

The presentation (embedded below and can be downloaded from Slideshare) covers the following companies:

Acceleran
Action Technologies
Airspan
Altiostar
Azcom
BaiCells
BravoCom
CBNL
CCS
Ceragon
Comba Telecom
Commscope
Fingu
Gemtek
IP.Access
JMA Wireless
Kleos
MitraStar
NuRAN
Parallel Wireless
Polaris Networks
Qualcomm
Qucell
Raycap
Ruckus
SOLiD
SpiderCloud
Vodafone
Zinwave

Small Cells, Macrocells, Backhaul, Infrastructure and other connectivity solutions from #MWC18 from 3G4G

Do let me know if you found it useful


Related Posts:

• Quick summary of Mobile World Congress 2018 (#MWC18)
• LoRa is quietly marching on...

Smartphone Batteries Round-up: Technology, Charging & Recycling

Back in 2013, I spoke about Smart Batteries. Still waiting for someone to deliver on that. In the meantime I noticed that you can use an Android phone to charge another phone, via cable though. See the pic below:

You are probably all aware of the Samsung Galaxy Note 7 catching fires. In case you are interested in knowing the reasons, Guardian has a good summary here. You can also see the pic below that summarises the issue.

Lithium-ion batteries have always been criticized for its abilities to catch fire (see here and here) but researchers have been working on ways to reduce the risk of fire. There are some promising developments.

The electrochemical masterminds at Stanford University have created a lithium-ion battery with built-in flame suppression. When the battery reaches a critical temperature (160 degrees Celsius in this case), an integrated flame retardant is released, extinguishing any flames within 0.4 seconds. Importantly, the addition of an integrated flame retardant doesn't reduce the performance of the battery.

Researchers at the University of Maryland and the US Army Research Laboratory have developed a safe lithium-ion battery that uses a water-salt solution as its electrolyte. Lithium-ion batteries used in smartphones and other devices are typically non-aqueous, as they can reach higher energy levels. Aqueous lithium-ion batteries are safer as the water-based electrolytes are inflammable compared to the highly flammable organic solvents used in their non-aqueous counterparts. The scientists have created a special gel, which keeps water from reacting with graphite or lithium metal and setting off a dangerous chain reaction.

Bloomberg has a good report as to why we’re going to need more Lithium.

Starting about two years ago, fears of a lithium shortage almost tripled prices for the metal, to more than $20,000 a ton, in just 10 months. The cause was a spike in the market for electric vehicles, which were suddenly competing with laptops and smartphones for lithium ion batteries. Demand for the metal won’t slacken anytime soon—on the contrary, electric car production is expected to increase more than thirtyfold by 2030, according to Bloomberg New Energy Finance.

Even if the price of lithium soars 300 percent, battery pack costs would rise only by about 2 percent.

University of Washington researchers recently demonstrated the world's first battery-free cellphone, created with funding from the U.S. National Science Foundation (NSF) and a Google Faculty Research Award for mobile research.

The battery-free technology harvests energy from the signal received from the cellular base station (for reception) and the voice of the user (for transmission) using a technique called backscattering. Backscattering for battery-free operation is best known for its use in radio frequency identification (RFID) tags, typically utilized for applications such as locating products in a warehouse and keeping track of high-value equipment. An RFID base station (called a reader) "pings" the tag with an RF pulse, which allows the tag to harvest microwatts of energy from it—enough to return a backscattered RF signal modulated with the identity of the item.



Unfortunately, harvesting generates very little energy; so little, that you really need a new standard. For instance, Wi-Fi signals transmit continuously, but harvesting that energy constantly will only enable transmissions of about 10 feet today. Range will be the big challenge for making this technology successful.

So we wont be seeing them anytime soon unfortunately.

Recycling of materials is always a concern, especially now that the use of Lithium-ion is increasing. Financial Times (FT) recently did a good summary of all the companies trying to recycle Lithium, Cobalt, etc.

Mr Kochhar estimates over 11m tonnes of spent lithium-ion batteries will be discarded by 2030. The company is looking to process 5,000 tonnes a year to start with and eventually 250,000 tonnes — a similar amount to a processing plant for mined lithium, he said.

The battery industry currently uses 42 percent of global cobalt production, a critical metal for Lithium-ion cells. The remaining 58 percent is used in diverse industrial and military applications (super alloys, catalysts, magnets, pigments…) that rely exclusively on the material.

According to Wikipedia, The purpose of the Cobalt (Co) within the LIBs is to act as a sort of bridge for the lithium ions to travel on between the cathode (positive end of the battery) and the anode (the negative end). During the charging of the battery, the cobalt is oxidized from Coᶾ⁺ to Co⁴⁺. This means that the transition metal, cobalt, has lost an electron. During the discharge of the battery the cobalt is reduced from Co⁴⁺ to Coᶾ⁺. Reduction is the opposite of oxidation. It is the gaining of an electron and decreases the overall oxidation state of the compound. Oxidation and reduction reactions are usually coupled together in a series of reactions known as red-ox (reduction-oxidation) reactions. This chemistry was utilized by Sony in 1990 to produce lithium ion cells.

From Treehugger: An excellent investigative piece by the Washington Post called “The cobalt pipeline: From dangerous tunnels in Congo to consumers’ mobile tech” explores the source of this valuable mineral that everyone relies on, yet knows little about.

“Lithium-ion batteries were supposed to be different from the dirty, toxic technologies of the past. Lighter and packing more energy than conventional lead-acid batteries, these cobalt-rich batteries are seen as ‘green.’ They are essential to plans for one day moving beyond smog-belching gasoline engines. Already these batteries have defined the world’s tech devices.

“Smartphones would not fit in pockets without them. Laptops would not fit on laps. Electric vehicles would be impractical. In many ways, the current Silicon Valley gold rush — from mobile devices to driverless cars — is built on the power of lithium-ion batteries.”

What The Post found is an industry that’s heavily reliant on ‘artisanal miners’ or creuseurs, as they’re called in French. These men do not work for industrial mining firms, but rather dig independently, anywhere they may find minerals, under roads and railways, in backyards, sometimes under their own homes. It is dangerous work that often results in injury, collapsed tunnels, and fires. The miners earn between $2 and $3 per day by selling their haul at a local minerals market.

There is a big potential for reducing waste and improving lives, hopefully we will see some developments on this front soon.

Some interesting April Fools' Day 2017 Technology Jokes

Here are the interesting April Fools' Day 2017 Technology Jokes. If I have missed one, please add them in comments. For those who don't know what April Fools' Day means, see here.

Google Windmill from Google Nederland: Interesting use of Wind and Cloud to keep Rain away.




Amazon Petlexa (Alexa for Pets): It allows dogs, cats, and other animals to communicate with Alexa just like you do. The Petlexa feature gives pets the freedom to place orders from Amazon, and to activate smart home enabled toys.




Google Play for Pets: A new category of games, apps and training tools to keep your pet stimulated. Honestly, I cant see why this cannot be real.

Honda Horn Emoji's: Horn Emojis offer a range of horn sounds for a variety of scenarios, from seeing your kids off to school to commiserating with other drivers in rush-hour traffic.

See video here. Honda has also launched In-car dating app to help lonely drivers find love at the wheel. More details here.


T-Mobile ONEsie: T-Mobile CEO John Legere has designed this Onesie and CTO Neville Ray has also participated in testing. Its got a lot of Amazing properties, including creating Human SotSpots.

See videos here and here.


Virgin Atlantic Dreambird 1417: World’s first-ever aircraft using new patented technology – flapology – to create the world’s first aircraft with flappable wings.




Virgin Trains (UK) Tickink: Innovative new contactless ticket system, offering customers the opportunity to have their train ticket permanently tattooed on their body, preventing frequent passengers from ever losing their tickets again. Details here.


Virgin Mobile Australia PhoYo:

Say "goodbyeee" to smashed phone screens and "helloooo" to the #PhoYo pic.twitter.com/MCAiwabKGA

— Virgin Mobile Aus (@VirginMobileAus) March 31, 2017

Prysm Avatar: I quite like this concept. A work drone that enables you to reap the benefits of working from home, without sacrificing the interpersonal advantages of being in the office. Each drone is equipped with sophisticated sensors and a holographic projector that displays your likeness as a realistic, life-sized avatar.




Telenor prohibits the word ‘Digital’ in all communication: There is a small chance this may be true ;-). See here.

Telenor bans word 'digital' from all internal communication; hand gesture introduced to ease transition. Read more: https://t.co/HKEEnqTLdH pic.twitter.com/HP4lfnZbQX

— Telenor Group (@TelenorGroup) April 1, 2017

Finally, there was also Google Gnome (like Google home), Google Ms. Pac-Man, Lexus LC: Lane Valet, Shake Me - by Trade Me, Huawei Mate 9.2 with 2 headphone jacks


There is also this picture from 1992 circulating, showing how standards body (ETSI) celebrated April Fools' before twitter/youtube :-)

Related Posts:

• Some interesting April Fools' Day 2016 Technology Jokes
• Some interesting April Fools' Day 2015 Technology Jokes
• Some interesting April Fools' Day 2014 Technology Jokes

Satellite Industry is Gearing up for The Next Revolution in Communications

Source: Intelsat

I have been talking about the role of satellites in future communications on my blog and various industry fora. While most of the telecom industry is focused on 5G, it’s good to see that the satellite industry is getting ready for the next revolution.

Source: New York Times

Masayoshi Son, chief executive of SoftBank has made it his mission to merge satellite operators Intelsat and OneWeb. While on the surface they may seem as competitors, in reality they complement each other. Intelsat operates geostationary (GEO) satellites while OneWeb is building low earth orbit (LEO) satellites. They both serve overlapping but different purposes and it makes sense for them to work together. LEO satellites which are roughly at 1200km have far lower latency than compared to GEO satellites that are 36,000km away. On the other hand LEO satellites do not appear stationary unlike GEO satellites.

We in CW are already aware of Masayoshi Son’s ambition and vision. Last year Softbank acquired ARM for approximately £24 billion. In a recent keynote delivered at the Mobile World Congress 2017 (#MWC17), Son explained his vision and reasoning for this purchase. In fact he mentioned that he has a 30 year vision which is why he thinks ‘cell towers from space’ are the next step in evolution. While he refers to them as fiber from the space, I wouldn’t go that far in comparison but do admit they have the potential to deliver high speed connectivity anywhere on earth.

The most obvious application of high speed connectivity ubiquitously available anywhere on earth are connected cars. While there is Wi-Fi to provide connectivity and software updates when parked at home, it will be complemented by mobile connectivity within the cities and the major roads. What is missing is anywhere and everywhere connectivity that the satellites can bring.

The big barrier for satellite connectivity in the cars had been the need for satellite dish mounted on the top of a car roof. Kymeta, an innovative company based in Washington, USA has been trying for years to solve this problem. In May, they will start selling  their “lightweight flat-panel antennas, meant to bring fast satellite-transmitted internet connections to cars, trains and boats”.

Source: Seattle Times

Kymeta is partnering with Toyota and Intelsat to bring a complete solution for future connectivity in the cars. They are not the only ones, there are other similar interesting projects ongoing in many different parts of the world.

The telecom industry cannot ignore satellite communications forever. Satellites have already proved themselves beyond doubt in broadcasting, navigation, earth observation, etc. It’s just a matter of time before they prove their while in communications as well.

Originally Posted on CW Blog here.

Connected and Autonomous vehicles: Beyond Infotainment and Telematics

An interesting presentation from the recent Cambridge Wireless Future of Wireless International Conference 2016, delivered by David Wong of SMMT. The presentation and video of this talk is embedded below.

You can view many presentations from #FWIC16 at Cambridge Wireless page here and videos here.

5G & Accident Free Driving

ETSI recently held a workshop titled "5G: From Myth to Reality". There were some interesting presentations and discussions, hopefully I will get a chance to write a bit more about it.

One interesting presentation was how 5G will make accident free driving a reality. While the current approach is to use the 802.11p standards that uses the license exempt 5.9GHz band, there is a possibility of enhancements based on 5G

As the final 2 slides say, What could be the use cases for 5G in vehicles? The answer suggested:

• Map update for highly automatic driving - Instantly update the map of vehicle's surrounding. The challenge of this use case is that the vehicle is currently in the tile that needs to be updated, hence a very quick update is required. 
• Precise Positioning high speed, no GPS, support for vehicles without high precision location tracking like cars 
• Audio / Video Streaming (Entertainment) 
• Online Gaming - side jobs 
• Sensor- and State Map Sharing (Sensor Raw Data) - Transmit raw sensor data such that others can use their own classifiers to infer decisions
• Camera and Radar sharing to improve visibility, including See-Through Share sensor information to augment ego vehicle's view. Allows for better visibility in presence of obstructing vehicles, heavy rain / fog, etc. 
• Short-Term Sensor sharing for crash mitigation - Mitigate crash between multiple vehicle by last-minute traffic exchange 
• Traffic forwarding using cars as relays Extend coverage or improve efficiency by using the car as a relay 
• Teleoperated Driving "Let car be controlled by off-site driver / car operator e.g. car sharing, taxi operator, …“ 
• Augemented Reality, e.g. Daytime-Visibility at night)

Here is the complete presentation, let me know what you think:

Smartphones: It came, It saw, It conquered

Smartphones have replaced so many of our gadgets. The picture above is a witness to how all the gadgets have now been replaced by smartphones. To some extent hardware requirements have been transferred to software requirements (Apps). But the smartphones does a lot more than just hardware to software translation.

Most youngsters no longer have bookshelves or the encyclopedia collections. eBooks and Wikipedia have replaced them. We no longer need sticky notes and physical calendars, there are Apps for them.

Back in 2014, Benedict Evans posted his "Mobile is Eating the world" presentation. His presentation has received over 700K views. I know its not as much as Justin Bieber's songs views but its still a lot in the tech world. He has recently updated his presentation (embedded below) and its now called "Mobile ate the world".

We sometimes think of the shift to mobile as finished, or almost finished. It isn't. pic.twitter.com/l5gaiMlaoU

— Benedict Evans (@BenedictEvans) March 12, 2016

Quite rightly, the job is not done yet. There is still long way to go. The fact that this tweet has over 600 retweets is a witness to this fact. Here are some of the slides that I really liked (and links reltaed to them - opens in a new window).

While we can see how Smartphones are getting ever more popular and how other gadgets that its replacing is suffering, I know people who own a smartphone for everything except voice call and have a feature phone for voice calls. Other people (including myself) rely on OTT for calls as its guaranteed better quality most of the time (at least indoors).

Smartphones have already replaced a lot of gadgets and other day to day necessities but the fact is that it can do a lot more. Payments is one such thing. The fact that I still carry a physical wallet means that the environment around me hasn't transformed enough for it to be made redundant. If I look in my wallet, I have some cash, a credit and debit card, driving license, some store loyalty cards and my business cards. There is no reason why all of these cannot be digital and/or virtual.

A Connected Car is a Smartphone on/with wheels.

A connected drone can be considered as smartphone that flies.

The Smartphones today are more than just hardware/software. They are a complete ecosystem. We can argue if only 2 options for OSs is good or bad. From developers point of view, two is just about right.

Another very important point to remember that smartphones enable different platforms.

Old: all software expands until it includes messaging
New: all messaging expands until it includes software

— Benedict Evans (@BenedictEvans) March 13, 2015

While we may just have messaging apps that are acting as platforms, there is a potential for a lot more.

Here is the presentation, worth reflecting on each slide:

If you haven't heard Benedict Evans speak, you can refer to a recent video by him on this topic:



Related posts on the web:

• The Second Smartphone Revolution

State of LTE & Connectivity

There are some reports that have been recently published on connectivity and connection numbers. This post intends to provide this info.

Facebook released "State of connectivity 2015" report. As can be seen in the picture above, at the end of 2015, estimates showed that 3.2 billion people were online. This increase (up from 3 billion in 2014) is partly attributed to more affordable data and rising global incomes in 2014. Over the past 10 years, connectivity increased by approximately 200 to 300 million people per year.

While this is positive news in terms of growth, it also means that globally, 4.1 billion people were still not internet users in 2015.

The four key barriers to internet access include:

Availability: Proximity of the necessary infrastructure required for access.
Affordability: The cost of access relative to income.
Relevance: A reason for access, such as primary language content.
Readiness: The capacity to access, including skills, awareness and cultural acceptance.

The PDF version of report is available here.

The number of LTE users crossed 1 Billion, end of 2015 according to a report by GSA. OpenSignal has a summary blog post on this here.

Finally, Open Signal has published Global State of LTE Market report that provides coverage, speeds and a lot more information.

South Korea and Singapore have set themselves apart from the main body of global operators, providing both superior coverage and speed. The biggest standouts were South Korea’s Olleh and Singapore’s Singtel. Olleh excelled in coverage, but also provided one of the fastest connections speeds in our report, 34 Mbps. Meanwhile Singtel hit the 40 Mbps mark in speed while still maintaining a coverage rating of 86%. There are other notable country clusters in the upper right-hand quadrant as well, for instance operators from the Netherlands, Canada and Hungary.

Meanwhile, other countries have staked positions for themselves in specific regions of the plot. U.S. and Kuwaiti operators are tightly clustered in the lower right, meaning they offer excellent coverage but poor 4G speeds. Japan and Taiwan congregate in the middle far right with their exceptional coverage but only average speeds. Most of New Zealand and Romania’s operators hover at the center top of the chart, indicating impressive bandwidth but a general lack of availability.

Its makes interesting reading, PDF available here.

*** Added Later: 25/03/16:12.15 ***

A good breakdown of LTE subscriptions by countries by Ovum:

The role of satellites in 5G world

While many of us have been focussing purely on wireless and mobile / 5G, the coverage and capacity provided by satellites is increasing and is set to dramatically transform connectivity in hard to reach places, not only in land but also in air and sea.

In one of my roles, I get to see some of these developments happening in the satellite world. Here are some of the recent things that I have learned.

In a recent presentation by Intelsat (embedded below), they showed how we will have a truly high throughput global coverage with the help of GEO and LEO satellites. Depending on the applications, they can take advantage of either or both. Ubiquitously connected cars, planes, trains, ships and other vehicles will soon be a reality. See their presentation below:

Intelsat is not the only operator innovating and coming up with some amazing solutions.

Viasat is another operator who will be launching one of the highest capacity HTS (High Throughput Satellite). See their presentation here and here.

Eutelsat on the other hand is trying something that has not been done before. Their Quantum class satellites will be creating and modifying the beams dynamically to provide coverage whenever and wherever needed. See their presentation here.

These are just a few examples, there are many other operators I have not mentioned here. Most of them have some sort of ambitious plan which will be there before 2020.

So what role will these satellites play in the 5G world? We will look at this question in the Satellite Applications & Services Conference in October but I am interested in hearing your thoughts. 

Updates from the 3GPP RAN 5G Workshop - Part 2

I have finally got round to having a look at some more presentations on 5G from the recently concluded 3GPP RAN 5G Workshop. Part 1 of the series is here.

Panasonic introduced this concept of Sub-RAT's and Cradle-RAT's. I think it should be obvious from the picture above what they mean but you can refer to their presentation here for more details.

Ericsson has provided a very detailed presentation (but I assume a lot of slides are backup slides, only for reference). They have introduced what they call as "NX" (No compatibility constraints). This is in line to what other vendors have referred to as well that above 6GHz, for efficiency, new frame structures and waveforms would serve best. Their slides are here.



Nokia's proposal is that in the phase 1 of 5G, the 5G Access point (or 5G NodeB) would connect to the 4G Evolved Packet Core (EPC). In phase 2, both the LTE and the 5G (e)NodeB's would connect to the 5G core. Their presentation is available here.

Before we move on to the next one, I should mention that I am aware of some research that is underway, mostly by universities where they are exploring an architecture without a centralised core. The core network functionality would be distributed and some of the important data would be cached on the edge. There will be challenges to solve regarding handovers and roaming; also privacy and security issues in the latter case.

I quite like the presentation by GM research about 5G in connected cars. They make a very valid point that "Smartphones and Vehicles are similar but not the same. The presentation is embedded below.

Qualcomm presented a very technical presentation as always, highlighting that they are thinking about various future scenarios. The picture above, about phasing is in a way similar to the Ericsson picture. It also highlights what we saw in part 1, that mmW will arrive after WRC-19, in R16. Full presentation here.

The final presentation we are looking is by Mitsubishi. Their focus is on Massive MIMO which may become a necessity at higher frequencies. As the frequency goes higher, the coverage goes down. To increase the coverage area, beamforming can be used. The more the antennas, the more focused the beam could be. They have also proposed the use of SC-FDMA in DL. Their presentation is here and also embedded below.

Some interesting presentations from ETSI Security workshop

ETSI held their security week from 22-26 June 2015 at their headquarters. There are lots of interesting presentations (see agenda [PDF]); I am embedding some here.

IETF and IoT Security from Zahid Ghadialy

This is a good presentation providing a summary of the reasons for IoT security issues and some of the vulnerabilities that have been seen as a result of that.

Aircraft cyber-security - no need to panic...just yet! pic.twitter.com/hZABvW539B

— Zahid Ghadialy (@zahidtg) August 18, 2015

The next one is The Threat landscape of connected vehicles and ITS (Intelligent Transportation Systems) integration in general

THE THREAT LANDSCAPE … of connected vehicles and ITS integration in general from Zahid Ghadialy

This presentation provides a good summary of the threats in the connected cars/vehicles which is only going to become more common. Some of these issues will have to be solved now before we move on to the autonomous vehicles in future. Security issues there will be catastrophic and many lives can be lost.

The final presentation is from 3GPP SA3 that provides a quick summary of security related work in 3GPP.

LTE-Broadcast making a push while Terrestrial broadcast still popular as ever

"TV isn't dying, it's having babies." This quote made my day. I have argued a few times in the past that terrestrial broadcasting will continue working and will be probably the most popular approach for a long time to come. The way things work with it may change. Multi-screen is one possible approach but you may have more interactions like 'red button functionality', etc.

Anyway, in Europe 800MHz spectrum has been cleared for use by Mobile Broadband technologies (LTE mainly). 700MHz is planned to be cleared as well by 2020, as per the suggestion in Lamy report. The other UHF band from 470MHz to 694MHz would be left as it is until 2030, with a review planned in 2025.

This has forced even big players like BBC to start looking at other mechanisms to deliver TV. While BBC3 was moved to online only, BBC is also exploring how to use LTE-Multicast to deliver content. It has been working to have its very popular iPlayer work with eMBMS.

Embedded below is a presentation from Cambridge Wireless CWTEC 2015 conference.

eMBMS is gaining popularity with its presence in lot more chipsets and even more trials. GSA report has shown that there are quite a few trials going on worldwide but the question remains about the business models. Most operators would not like to become content providers and compete with the incumbents in their markets. Having someone like BBC in the UK is helpful but not sure how many such options are available worldwide. Embedded below is the GSA presentation

GSA: LTE Broadcast (eMBMS) Update - March 2015 from Zahid Ghadialy

Great LTE Broadcast demo by @Ericsson using devices from Samsung & LG powered by Qualcomm. Consumers will love this. pic.twitter.com/1uroaV3mk9

— Ben Wood (@benwood) March 5, 2015

There were some nice pictures from MWC as can be seen above. Ericsson has a video as well (below) on how the app works.

M2M LTE Broadcast module fm D-Link / Verizon. Huge potential here for billboards, taxis or any screen U can think of! pic.twitter.com/WL2f5mZ5bB

— Ben Wood (@benwood) March 5, 2015

D-Link is also working on M2M modules that could be used in billboards to dynamically update the ads at very regular intervals. There is a video here that explains this further.

Finally here is a Video from Visteon/Verizon that explains how LTE-Multicast can be used to deliver software updates in the connected car:



Finally, here are couple of presentations that may interest you too:

• Delivery of Broadcast Content over LTE Networks
• Transitioning from Broadcast TV to Broadband TV