Thursday, 8 February 2024

6 Mobile Operators in the Global 100 Ranking of the World’s Most Sustainable Companies

The Global 100 is an annual assessment by Corporate Knights Inc. The 100 most responsible companies in the world were selected based on an assessment of 6,733 international listed companies against 25 metrics for environmental responsibility, social responsibility and good governance.

Their official press release says: 

Since 2005, the Global 100 has been one of the world’s most valued and transparent rules-based sustainability ratings that emphasizes the impact of a company’s core products and services. It is the best-performing global sustainability index (ticker: CKG100), with more than 10 years of history. All publicly traded companies with more than US$1 billion in revenue are assessed across 25 key performance indicators that cover resource management, employee management, financial management, sustainable revenue and sustainable investment, and supplier performance. Companies engaging in “red flag” activities such as blocking climate policy and contributing to deforestation are disqualified.

Telecom TV's morning headlines newsletter produced a nice summary reproduced below:

Seven telecom operators have ended up in the Global 100 ranking of the world’s most sustainable companies, compiled by Canadian sustainable economy magazine Corporate Knights. Bell Canada scored the highest among its telco peers, ranking 51st globally (down from 42nd in 2023). Next of the telecom providers is Finnish operator Elisa (59th), Singaporean telco Singtel (62nd), North American hybrid fibre coaxial cable operator Cogeco Communications (73rd), Brazilian telco Telefônica Brasil (75th), Singaporean operator StarHub (80th, down from 34th last year) and Canadian telco Telus (85th, down from position 37st last year). On the vendor side, Ericsson is recognised as one of the most sustainable companies worldwide, climbing from position 65 in 2023 to 15 this year. Cisco is also present, ranking 64th. Tech giant Apple has climbed a mere two spots to 71st place globally. Corporate Knights explained that the rankings included all public companies with more than US$1bn in revenue, with assessments made across 25 key indicators, including percentage of “sustainable revenue” and “sustainable investment” into green solutions, such as renewable energy and energy efficiency, taxes paid, carbon productivity, and racial and gender diversity.

It's great to see MNOs taking initiatives for a sustainable future.

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Thursday, 18 January 2024

Türkiye is Still Waiting for 5G but 4.5G (LTE-Advanced) is Working Great

Couple of years back, Turkey officially changed its name to Türkiye and as such we will refer to them by their new name. 

Türkiye continues to develop its capabilities within its telecom sector, becoming one of the relatively few countries able to build and develop its own communications satellites. With the successful launch of the Turksat 5A and 5B satellites in 2021, the country has vastly increased its bandwidth capacity. These satellites will be joined by the Turksat 6A in early 2023.

In addition to these technological breakthroughs, the country’s operators have invested in fibre infrastructure, with Vodafone Türkiye having trialled a 1Tb/s service in late 2021 to support its 5G network backhaul and improve the quality of its fixed infrastructure.

Deployment of fibre-based broadband networks are well established, with fibre accounting for 26.7% of all fixed broadband connections as of early 2022. The DSL sector still dominates, accounting for about 63% of connections, but its share is steadily declining, year-on-year, while the number of fibre connections has grown strongly.

Improved fixed and mobile infrastructure is underpinning the country’s initiatives relating to Smart City concepts, which have become a key area of focus for the emerging digital economy and the transformation to a knowledge-based economy. Türkiye's National Smart Cities Strategy and Action Plan runs through to 2023.

There are three network operators in Türkiye : Turkcell, Vodafone and Türk Telekom (formerly called Avea).  

In 2015 the Turkish regulator auctioned off licenses on 800, 900, 1800, 2100 and 2600 MHz bands for 4G/LTE (Bands 3, 8, 1 and 20) . All three providers launched 4G/LTE in 2016. It has been marketed from the start as "4.5G", otherwise known as LTE+ or LTE Advanced, accelerated by carrier aggregation where available in major cities in all 81 provinces from the start. Coverage is generally quite good: Turkcell has the best, followed by Vodafone and Türk Telecom with the least.

The Turkish Government sought to be an early adopter of 5G, but plans have stalled and 5G spectrum has not even been auctioned at the time of writing this blog. European Commission's Türkiye 2023 Report notes that there was no progress reported in the procurement of 5G. Türkiye still needs to allocate additional frequencies for the development and predictability of the sector. In 2022, 94.1% of households had access to the internet, increasing from 92% the previous year.

In Opensignal's latest Türkiye Mobile Network Experience report, Turkcell wins five awards outright out of eight recognitions available, it retains both speed awards and Video Experience, while it also claims two newly introduced awards Live Video Experience and Coverage Experience. Türk Telekom turns two joint wins for Games Experience and Availability into outright victories, as Turkcell slips off the podium for both of these metrics. On top of these two wins, Türk Telekom is the sole recipient of Consistent Quality. For the third time in a row, Vodafone wins no awards, either outright or jointly.


Turkcell is the biggest operator in the country with the best coverage nationwide. 2G is on 900 MHz, 3G on 2100 MHz. In 2015 Turkcell’s population coverage was at 99.8% in 2G and 95% in 3G.

Turkcell launched their "4.5G" LTE in 2016 using tri-band aggregation of 800, 1800 and 2600 MHz frequency bands. 4G/LTE is free to prepaid. Turkcell is known to have the best coverage in the countryside.  

According to Statista, as of the second quarter of 2022, Turkcell’s mobile business had a market share of 41.3%, ahead of Vodafone at 30.4 %, and Turk Telecom at 28.3%. According to the company’s own figures, it had 42 million subscribers across fixed and mobile in Q2 2023; the mobile subscriber base reached 37.6 million in the same quarter.

In 2016 Türk Telekom rebranded its mobile network from Avea, but you see their old sign still sometimes. It's the smallest provider in Turkey in terms of coverage, but they have still good speeds in the cities and a fair coverage in the countryside.

2G is on 900 and 1800 MHz, 3G on 2100 MHz, 4G/LTE was launched in 2016. It still has the lowest coverage in the countryside, but is strong in cities.  

Türk Telekom serves more than 15 million broadband and 25.6 million mobile subscribers. As the company plays a critical role in leading Turkey's digital transformation, they sought to modernize their infrastructure supporting business-critical systems, including core billing and charging applications and databases.

Vodafone is the 2nd operator in terms of coverage. 2G on 900 MHz, 3G on 2100 MHz, 4G/LTE was launched in 2016. It has a good coverage in the country, slightly worse than Turkcell, but better than Türk Telekom.

The number of Vodafone Turkiye's mobile subscribers reached 25.4 million, by November 2023, the total number of mobile subscribers including M2M (Machine Inter-Machine Communication) reached 29.3 million . The company increased the number of postpaid subscribers to 19.1 million. While having 1.4 million fixed broadband subscribers.

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Tuesday, 26 December 2023

Top 5 Posts for 2023

Here are the top 5 most viewed posts from 2023. These posts were not necessarily posted this year, so I have added the month and year it was posted.

If you had a favourite post, let us know in the comments below.

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Monday, 11 December 2023

AT&T's Plans on Open RAN and 6G

AT&T was in news recently for their announcement about acceleration of Open and Interoperable Radio Access Networks (RAN) in the United States. According to their press release: 

This industry-leading move, in collaboration with Ericsson, will further the telecommunications industry efforts and help build a more robust ecosystem of network infrastructure providers and suppliers. AT&T’s spend could approach roughly $14 billion over the 5-year term of the contract with Ericsson. 

AT&T’s Open RAN plan is for 70% of its wireless network traffic to flow across open-capable platforms by late 2026. The company expects to have fully integrated open RAN sites operating in coordination with Ericsson and Fujitsu, starting in 2024. This move away from closed proprietary interfaces will enable rapid scaling and management of mixed supplier hardware at each cell site.  Beginning in 2025, the company will scale this Open RAN environment throughout its wireless network in coordination with multiple suppliers such as Corning Incorporated, Dell Technologies, Ericsson, Fujitsu, and Intel.

At the Brooklyn 6G Summit (B6GS), Chris Sambar, who leads AT&T’s Network organization and teams responsible for designing, engineering, building, and operating AT&T’s next generation mobile and fiber networks, gave a keynote on "Network: The Innovation Platform". The narrative of the talk says: 

Today’s 5G build is the foundation of 6G. Flexible and open architecture being developed and fine-tuned with 5G will be central to 6G, and maintaining a customer-centric, forward-looking mindset will be critical as we scale and deploy technologies such as Stand Alone core, edge computing, AI, and NTN integration. Implementing the lessons learned in the 5G era and ensuring we have end-to-end alignment across the 6 pillars of our architecture will be vital to making 6G a success.

RCR Wireless provides a concise summary of the talk here:

AT&T has spent $40 billion on spectrum in the last few years; Verizon has spent more than $50 billion; and T-Mobile US had to acquire another major operator to get its spectrum holdings. With 5G not even at its midway point and the industry already trying to figure out what they might have to spend on 6G, “it can’t be a bottomless-pit industry,” he said.

That said, Sambar did also discuss the promise of 6G for extended and virtual-reality immersive experience for training public safety and military members, and the potential of better network-focused AI and ML to save network operators “hundreds of millions or billions of dollars” if things like self-optimization of networks can be done better and faster. That in itself represents a major challenge. Sambar says that he has thousands of employees in network operations, between AT&T’s wireline and wireless networks and “hundreds” of algorithms that do very simple if-then work and essentially send tickets to humans when a scenario comes up that fits its if-then criteria. If one of those algorithms breaks, he said, “we have to go figure out where it is, what server it’s sitting on, what’s wrong with it and how do we fix it. I would love a machine to manage that for me”—or even better, to stitch the capabilities of multiple algorithms together for more efficient and effective AI/ML applicability to network operations.

The video of the talk is embedded below, thanks to IEEE TV:

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Wednesday, 6 December 2023

4.5G Coverage is Good Enough for Comoros

The Union of the Comoros, an archipelago off Africa’s east coast with high levels of poverty, sought to improve communications, trade, and economic opportunities by expanding mobile communications and internet services. With support from the World Bank Group, the government liberalized the telecommunications sector, held an international tender, and awarded a second telecoms license. Through competition, Comoros now has better quality and cheaper telecoms services, as well as broader coverage. In a country with scarce government resources, the World Bank’s $32 million has made a substantial contribution by leveraging over $90 million in telecoms licensing fees and infrastructure investment.

Comoros has 2 mobile operators: Huri by Comoros Telecom (Comores Telecom) and Telma Comoros (Telma Comores). Both operators have 2G, 3G, and 4G/LTE networks. The following frequencies are used by the Comorian operators: 2G: 900 MHz, 3G: 900 MHz and 4G/LTE: 800 MHz (Band 20).



Until 2016 Comores Telecom (Comtel) was the sole provider of wireless, broadband and fixed line services on Comoros. Mobile services started in 2003 when Comtel launched a GSM-900 network under the brand name HURI.


2G started as late as 2002 and SIM cards were $100 at the beginning. 3G services started in 2013. Mobile penetration remained low in the Comoros. Many users were dissatisfied with Comtel's bad service and high prices while it had a monopoly. In 2018 they had to slash prices because of their new competitor.

From July 2018 they started to advertise with a "4.5G" network, so 4G/LTE seems to have be started on unknown frequencies (probably bands 20 and 3).



Telma Comoros, officially known as Telma Comores but will be referred to as just “Telma,” was awarded a license in 2015 to bring competition in the Comorian telecom market. They are an operator from Madagascar where they operate as Telma Malagasy. 


The launch of Telma Comores has expanded mobile services in Comoros, giving people high quality 4G LTE mobile broadband technology at lower prices. In response to this competition, Comores Télécoms has launched an even faster 4.5G network. By 2018, mobile broadband subscriptions rose to 58 per 100 inhabitants, and coverage is on track to provide all citizens with broadband mobile phone and inter- net services by 2030.


Telma doesn't block VoIP providers like Skype or WhatsApp calls. They also feature very cheap calls to neighboring French Mayotte. They might be the smarter alternative, once they have full coverage now. At least they brought the incumbent to cut prices.

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Friday, 1 December 2023

5G Development Strategy & Plan of Turk Telekom

Founded in 2011, Global TD-LTE Initiative (GTI) has been dedicated to constructing a robust ecosystem of TD-LTE, speeding up the commercialization of TD-LTE and promoting the convergence of LTE TDD and FDD. Today, GTI has become an influential cooperation platform with global presence with operators and key vendors, and has completed the GTI 1.0 mission by building an end-to-end TD-LTE ecosystem and achieving global commercialization of TD-LTE and converged LTE TDD/FDD.

As the newest member of GTI, Ahmet Fethi Ayhan, Network Director at Turk Telekom, had the opportunity to share Türk Telekom's 5G roadmap and network transformation with the world's leading industry representatives at the 38th workshop held in Istanbul.

His talk is embedded below:

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Monday, 27 November 2023

Grenada is Slowly Progressing Towards High Speed 4G

Grenada is an island country consisting of Grenada itself and six smaller islands in the southeastern Caribbean. It's located northwest of Trinidad and Tobago, northeast of Venezuela, and southwest of St. Vincent and the Grenadines. About 126,000 inhabitants live on 348.5 km2 area.

Like on many Caribbean Islands there are these two usual providers: Digicel Grenada and Flow (by Cable & Wireless). Flow is the incumbent provider and Digicel came to the Caribbean 2001-6 to end this monopoly and has since become market leader in Grenada by aggressive marketing.

2G is on European bands while 3G is on US bands. Both operators have 2G/GSM on 900 and 1800 MHz. For 3G Flow uses 850 MHz (CLR band 5) while Digicel employs 1900 MHz (PCS band 2). 

Digicel Grenada, launched commercial 700MHz LTE network services in December 2018.

Flow addressed widespread criticism over the quality of its fixed broadband services by announcing it has spent XCD15 million (USD5.6 million) to provide faster web browsing for its subscriber base. As a result, they have been able to increase speeds from 15Mbps to 50Mbps, putting the country ‘on par’ with many developing nations.

Recently Grenadians have become more and more dissatisfied with the services provided by FLOW and Digicel. Many customers have reported losing money due to various reasons, including sudden deactivation of their numbers despite having substantial account balances. This issue raises significant concerns regarding transparency and accountability within these companies. Additionally, the quality of telephone and internet services provided by both FLOW and Digicel has been deemed unacceptable by many customers, particularly in rural areas where Flow Landline and broadband services have experienced prolonged outages.

In light of these failings, it is imperative that the National Telecommunications Regulatory Commission (NTRC) in Grenada takes proactive measures to ensure that these companies meet accepted standards. If the NTRC fails to fulfill its responsibilities, it may be necessary for the government to intervene by considering potential changes in board membership.

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