Tuesday, 4 March 2025

Docomo's COW Setup at Peaceful Park 2024

In support of the Noto Peninsula's recovery, PEACEFUL PARK 2024 took place on July 6-7. NTT Docomo played a key role, both as a co-host and by ensuring robust connectivity for attendees.

To maintain stable communication, Docomo deployed a mobile base station vehicle and "Carry 5G" equipment to cover indoor live venues. Leveraging Massive MIMO technology, they provided a reliable network even in crowded areas. The Docomo booth also showcased their disaster response initiatives, highlighting their commitment to resilient infrastructure.

Events like these not only celebrate community strength but also showcase the importance of adaptive telecom solutions in disaster-affected regions.

The above video shows setting up of the temporary mast, a.k.a. Cell on Wheel at the event.

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Tuesday, 18 February 2025

Meta's Project Waterworth: The Next Evolution in Subsea Connectivity

Meta has unveiled its most ambitious subsea cable project to date — Project Waterworth, previously referred to as "W", because of it's shape. The multi-billion-dollar initiative is set to become the longest subsea cable in the world, spanning over 50,000 km and connecting five major continents, including the U.S., India, Brazil, and South Africa. With 24 fibre pairs delivering the highest capacity technology available, Project Waterworth will redefine global digital infrastructure and enhance connectivity for billions of users.

Subsea cables form the backbone of the internet, carrying more than 95% of intercontinental traffic and enabling global communication, financial transactions, and AI-driven innovations. With this latest venture, Meta aims to open three new oceanic corridors, ensuring high-speed, reliable connectivity that will power the next wave of AI advancements worldwide. By leveraging cutting-edge routing techniques, enhanced burial methods in high-risk areas, and deep-sea deployments up to 7,000 metres, Project Waterworth is designed for maximum resilience and security.

India at the Centre of Meta’s Connectivity Vision

India is central to Meta’s strategy, with its platforms—Facebook, Instagram, and WhatsApp—serving over a billion users in the country. With AI adoption accelerating, demand for data centre capacity and seamless connectivity is at an all-time high. Project Waterworth is expected to play a pivotal role in supporting India’s digital economy by providing the necessary infrastructure to handle AI workloads, cloud services, and high-speed internet demands.

The project also underscores Meta’s shift in subsea cable strategy. Unlike its earlier 2Africa initiative, which followed a consortium approach, Project Waterworth appears to be a fully owned and controlled system. This mirrors Google's model of securing dedicated infrastructure for strategic markets rather than relying on shared capacity. While this approach ensures end-to-end control and security, it diverges from the collaborative model that has been highly successful in previous large-scale subsea cable projects.

Bypassing Global Chokepoints

One of the key aspects of Project Waterworth is its avoidance of politically sensitive and high-risk regions. Meta has reportedly designed the cable to steer clear of the Red Sea, the South China Sea, Egypt, and the Malacca Strait—areas that have become significant geopolitical bottlenecks for global internet traffic. By taking a direct route between the U.S. and India with strategic stops in South Africa and potentially Australia, Project Waterworth aims to ensure long-term security and avoid the risks associated with conflict zones and regulatory challenges in transit countries.

However, this bypassing of traditional routes does come with a trade-off: increased latency. Despite this, Meta appears to prioritise long-term security and reliability over marginal improvements in data transmission speeds. The project will also likely face regulatory hurdles, particularly in India, where obtaining permits for marine surveys and installations is notoriously complex and time-consuming.

The Battle for AI Connectivity Dominance

Meta’s decision to fully own Project Waterworth could have wider implications for the subsea cable industry. If Meta excludes partners, it may push competitors like Google to develop their own dedicated infrastructure to serve India’s growing digital ecosystem. Given the scale of investment—potentially exceeding $10 billion over the next decade—this move signals a new era of tech giants building independent, AI-optimised connectivity solutions.

While Project Waterworth marks a significant leap forward in global connectivity, the challenge will be balancing rapid deployment with regulatory constraints. If successful, it will not only strengthen Meta’s position as a digital infrastructure leader but also cement India’s role as a global AI powerhouse in the decades to come.

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Friday, 31 January 2025

Electric Vehicles as a Resilient Power Source for Telecom Infrastructure

In an era where reliable telecommunications infrastructure was critical, Japan’s telecom giant NTT DOCOMO, in collaboration with NTT Corporation and Nippon Car Solutions (NCS), launched a ground-breaking demonstration experiment to enhance base station power resilience during outages. This initiative explored the feasibility of using electric vehicles (EVs) as mobile power sources, supported by AI-driven dispatch planning.

Addressing the Challenge of Power Outages

Telecom networks rely on consistent power to maintain connectivity, especially during emergencies. Traditionally, base stations depend on backup batteries with limited capacity, supplemented by generators in prolonged outages. However, with the increasing adoption of EVs, their potential as mobile energy sources offered a novel and sustainable approach to bolstering telecom infrastructure resilience.

The experiment integrated multiple technological components:

  • DOCOMO’s Energy Management System (EMS): This platform monitored the charge status of base stations and coordinated power-sharing between EVs and telecom infrastructure.
  • NTT’s AI-Based Dispatch Planning: Leveraging deep reinforcement learning, this system dynamically optimised EV dispatch to ensure timely power delivery to affected base stations.
  • Real-time EV Data Collection: Provided by NCS, this component tracked EV location, stored power, and driving data to enhance operational efficiency.

A Smart, AI-Driven Approach

One of the key innovations in this experiment was the use of AI-driven route planning to deploy EVs effectively. The AI system not only determined the fastest routes for EVs to reach power-downed base stations before backup batteries depleted but also ensured that vehicles were directed to charging stations before their own power ran low. By optimising travel and energy allocation, the AI model addressed logistical challenges that could otherwise hinder the feasibility of EV-based power support.

The trial, conducted in Chiba Prefecture, simulated wide-area power outages and assessed the effectiveness of the AI dispatch model in real-world conditions. By driving EVs according to AI-generated plans and measuring the charging effectiveness at base stations, the experiment aimed to refine this approach for broader adoption.

Sustainable and Scalable Solutions for Future Telecom Networks

Beyond immediate disaster response, this initiative aligned with broader sustainability goals. As a member of the EV100 initiative, NTT was committed to accelerating the adoption of electric vehicles within corporate fleets. Integrating EVs into telecom infrastructure resilience strategies not only enhanced disaster response but also contributed to reducing carbon footprints in the industry.

If successful, this model could be used as a blueprint for telecom operators worldwide, particularly in regions prone to natural disasters. By leveraging AI, energy management systems, and EV technology, telecom networks could build a more resilient, flexible, and sustainable power backup strategy.

This forward-thinking trial underscored how emerging technologies could be harnessed to address infrastructure vulnerabilities, ensuring uninterrupted connectivity when it mattered most. As the telecom industry continued to evolve, integrating intelligent, sustainable power solutions remained key to enhancing network reliability and disaster preparedness.

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Tuesday, 14 January 2025

Decoding Starlink: The Technology Behind the Revolution

Starlink has been a regular feature on our blog. The race to provide global connectivity has seen remarkable innovation, and Starlink, SpaceX's satellite internet service, has been at the forefront. By utilising a network of low Earth orbit (LEO) satellites, Starlink promises faster speeds and reduced latency compared to traditional satellite internet. But what exactly sets Starlink apart? Let’s delve into the technical marvels behind this ground-breaking system.

Traditional broadcast satellites operate in geostationary orbits, approximately 35,000 kilometres above Earth. In contrast, Starlink's LEO satellites, orbiting at altitudes of around 550 kilometres, drastically reduce the distance signals travel. This significantly enhances performance and reduces latency, forming the foundation of Starlink’s technological advantage.

With Starlink internet, data is continuously exchanged between a ground dish and a Starlink satellite zooming across the sky at an incredible 27,000 km/h. How can the dish and satellite maintain a continuous connection? And how is data transmitted so efficiently? The video below delves deeply into the workings of the ground dish and satellites, revealing how a beam of data is formed, how it is swept across the sky, and what precisely is in that beam enabling incredibly fast internet speeds. This is a remarkable feat of technology and engineering!

Inside the Starlink Dish: Dishy McFlatface

At the heart of the Starlink system is its ground terminal, affectionately known as Dishy McFlatface. This device features an aperture-coupled patch antenna, a sophisticated design that allows it to efficiently emit and receive electromagnetic waves. Unlike traditional parabolic dishes, Dishy is compact, sleek, and meticulously optimised for Starlink’s specific needs.

How Does Dishy Work?

Dishy’s ability to send and receive data hinges on two critical technologies: beamforming and phased array beam steering.

  • Beamforming enables the dish to focus its electromagnetic waves into a directed beam, efficiently reaching Starlink satellites in orbit.
  • Phased Array Beam Steering introduces dynamism, allowing the beam to move across the sky by electronically adjusting the phase of signals emitted from various antenna elements. This agility is essential for maintaining a seamless connection with rapidly moving LEO satellites.

A Look at Signal Transmission

Once a beam is formed and directed, Dishy employs advanced modulation techniques, such as 64QAM (Quadrature Amplitude Modulation), to transmit data. This method combines amplitude and phase variations, maximising data throughput—a vital requirement for high-speed internet services.

Scaling Down: Electromagnetic Waves and Dishy’s Dimensions

Despite its advanced functionality, Dishy remains surprisingly compact. This miniaturisation is achieved by leveraging the properties of electromagnetic waves and employing innovative design principles, as outlined in Starlink’s patents.

The Bigger Picture

Starlink’s phased array technology represents a monumental leap in satellite communications, with implications extending beyond internet services. Its ability to dynamically steer beams has the potential to revolutionise fields such as autonomous vehicles, IoT, and remote sensing.

Conclusion

Starlink isn’t merely about providing internet access; it’s about redefining the very concept of connectivity. Through ground-breaking innovations in satellite placement, ground terminal design, and signal processing, Starlink sets a new benchmark for telecom infrastructure.

Video Contents

All the above is explained in a fantastic manner in the video embedded below. The video’s table of contents with timestamps for easy navigation as follows:

  • 00:00 - Intro to Starlink
  • 01:00 - Overview of Exploring Starlink
  • 01:46 - Difference between Starlink and Broadcast Satellites
  • 03:28 - Parts Inside a Dishy McFlatface
  • 05:06 - How Does an Aperture-Coupled Patch Antenna Work?
  • 09:13 - Electromagnetic Wave Emission
  • 12:45 - Forming a Beam that Reaches Space: Beamforming
  • 15:22 - Brilliant
  • 16:52 - Steering a Beam to Sweep Across the Sky
  • 18:54 - Starlink: Phased Array Beam Steering
  • 21:11 - Notes on Phased Array Beam Steering
  • 22:24 - Sending Data in a Beam to the Starlink Satellite
  • 23:27 - Inner Workings of 64QAM
  • 26:02 - Actual Size of Starlink Dishy & Electromagnetic Waves
  • 26:55 - Images from the Starlink Patent
  • 27:49 - Outro

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Monday, 30 December 2024

Top Blog posts for 2024

As 2024 draws to a close, it’s time for our annual tradition of highlighting the most-viewed posts of the year. This list includes posts that garnered the most attention, regardless of when they were originally published. For clarity, I’ve included the month and year of publication for each.

Interestingly, none of the top five posts were published in 2024! So, I’ve also added a bonus section showcasing the top three posts actually published this year.

Do you have a favourite post from the blog? Share it with us in the comments below—we’d love to hear from you!

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Tuesday, 17 December 2024

How Samsung is Leveraging vRAN to Match Traditional RAN (T-RAN) Performance

As mobile networks evolve, virtualized RAN (vRAN) and Open RAN architectures are gaining traction. Even operators who were initially sceptical are increasingly exploring and deploying these innovative solutions to meet the growing demands for flexibility, efficiency, and sustainability. Samsung, among other key players, has been at the forefront of large-scale vRAN and Open RAN rollouts across North America, Europe, and Asia.

The adoption of O-RAN-compliant, Open vRAN architectures has demonstrated the potential to deliver performance on par with—or even superior to—traditional RAN systems. While trials and commercial deployments have validated their capabilities, scaling these solutions introduces challenges, such as integration complexities, security concerns, and organizational disruptions. To address these hurdles, operators and vendors alike are focusing on building robust ecosystems, fostering collaboration, and driving continuous innovation.

As adoption expands, operators are reaping an array of benefits from vRAN and Open RAN architectures:

  • Faster site activations: Accelerated deployment timelines facilitate quicker service rollouts.
  • Enhanced resource utilization: Flexible resource sharing improves overall network efficiency.
  • Energy savings: AI-driven solutions enable dynamic power management, reducing energy consumption.
  • Operational agility: Advanced monitoring and adaptive systems boost performance and responsiveness.

Vendors and partners are tackling the complexities of scaling vRAN and Open RAN through collaborative efforts, with Samsung introducing several solutions to improve performance and address integration challenges:

  • Containerized Virtual Cell Site Router (vCSR): The integration of vCSR within the virtual Distributed Unit (vDU) minimizes hardware requirements by utilizing server processing power more efficiently.
  • Energy-saving features: AI-powered tools like Samsung’s Energy Saving Manager (ESM) enable traffic-aware adjustments, such as dynamic power amplifier (DPA) levels, sleep modes for radio units, and CPU power optimization, demonstrating significant energy reductions in large-scale deployments.
  • AI/ML-powered automation: Comprehensive platforms, such as Samsung’s CognitiV Network Operations Suite (NOS), incorporate advanced analytics and automation, enhancing network optimization, troubleshooting, and reducing total cost of ownership (TCO).

The transition to Open vRAN is not just a technological evolution but a paradigm shift in network architecture. These systems prioritize flexibility and programmability, empowering operators to achieve business objectives that extend beyond cost savings, including faster service rollouts, better customer experiences, and improved energy efficiency.

While Samsung’s contributions in this domain are notable, the larger industry trend toward open and virtualized networks reflects a collective push to shape the future of mobile connectivity. Collaboration across the ecosystem is essential to address challenges and unlock the full potential of these transformative technologies.

Embedded below are some nice explainers and presentations on Open vRAN from Samsung:

As the industry continues to evolve, vRAN and Open RAN are set to play a pivotal role in driving the next wave of 5G innovation and growth.

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Tuesday, 3 December 2024

Deutsche Telekom's Hydrogen-Powered Mini-Masts

Earlier in the year we wrote about Deutsche Telekom's Mini-Mast a.k.a. “Cell Tower To Go”.  Last year, DT set a new benchmark in sustainable technology with the deployment of hydrogen-powered antennas at the Nibirii Festival in Germany. This initiative replaced the traditional diesel generators with hydrogen fuel cells to provide eco-friendly energy for mobile base stations. The hydrogen is sourced in a CO₂-neutral process, marking a significant step towards green innovation.

For anyone who doesn't understand what hydrogen fuel cell is, this video has a good explanation.

At the festival, a hydrogen-powered mast supported 30,000 attendees with seamless LTE and 5G connectivity. The fuel cells, developed by SFC Energy, ensured reliable, uninterrupted service for 28 days, showcasing their potential for large events, emergencies, and remote areas. This shift underscores Deutsche Telekom's commitment to combining sustainability with technological advancements.

Additionally, compact mobile masts and stage-mounted small cells enhanced coverage and user experience. These innovations promise to redefine mobile connectivity, emphasizing rapid deployment and reduced environmental impact.

You can read the full story here.

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Tuesday, 19 November 2024

SK Telecom's Vision for Future Telco Infrastructure in the AI Era

Last month, SK Telecom released a 6G white paper that explores the evolution of wireless and wired infrastructure through the convergence of AI and telecommunications. The white paper highlights how Telco Edge AI infrastructure can redefine the value of network systems by enabling real-time data processing alongside AI-driven services. You can find my detailed blog post on the white paper here.

Dr. Takki Yu, Vice President of the Infra Tech Office at SK Telecom, leads R&D efforts across end-to-end mobile communication technologies. His work spans Radio Access, Core, Transport, Devices, Location, and Network AI. Dr. Yu’s primary focus is on advancing mobile communications, including 5G and Beyond 5G (6G) systems, as well as innovations in network virtualization, cloud, location-based quantum security, and AI integration. Notably, he played a key role in the successful commercialization of the world’s first 5G network in Korea and continues to lead the charge in developing Beyond 5G and 6G technologies.

At the Brooklyn 6G Summit (B6GS), Dr. Takki Yu delivered a keynote presentation titled "The Path to AI Telecommunications Infrastructure Evolution as Future Architecture." In his talk, he shared SK Telecom's vision for the future of telco infrastructure, reflecting on the expectations of the 6G era and the transformative shift towards AI-driven telecommunications infrastructure.

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Tuesday, 29 October 2024

China Deploys 5G-A Synaesthesia in the Tibet Autonomous Region (TAR)

As a non-native English speaker, I had never come across the word synaesthesia (UK)/synesthesia (US). The Cambridge dictionary explains this as a condition in which someone experiences things through their senses in an unusual way, for example by experiencing a colour as a sound, or a number as a position in space. Wikipedia says that it is a perceptual phenomenon in which stimulation of one sensory or cognitive pathway leads to involuntary experiences in a second sensory or cognitive pathway.

Earlier this year Light Reading reported that Tibet's $500M 5G network in Tibet has 2.3 million 5G users and penetration rate of 62%. The Diplomat reported that China has already built 11,719 5G base stations in the Tibet Autonomous Region (TAR). Quoting from the publication:

The 5G-A synaesthesia integrated base stations have been described by Huawei as a new revolutionary technology, along with passive IoT and endogenous intelligence, spurred by the 5G-A era.

China has developed the new 5G-A base stations to overcome the longstanding challenges faced by its traditional radars and cameras in terms of detecting and identifying small-sized drones operating within low-altitude airspace. These 5G-A base stations are equipped with comprehensive sensing capabilities that enable identification, real-time positioning, speed detection, and tracking of low-altitude unmanned aerial vehicles, ground vehicles, and other illegally intrusive targets. Following the completion of the first station, the China Mobile Tibet Company announced that its 5G-A base station has detection capabilities surpassing traditional radars. According to the company, the goal of these base stations in Tibet’s border areas is to build low-altitude sensing networks, thereby fostering the development of drone inspection and early warning systems. 

The low-altitude economy refers to various economic activities occurring within the vertical airspace that extends from 1,000 to 4,000 meters above the ground where civil-manned and unmanned aircraft vehicles operate and promote the integrated development of related fields.

The innovation of synaesthesia integrated technology in 5G-A has garnered great attention in China recently. 5G-A synaesthesia integrated technology combines multiple capabilities such as communications, imaging, and computing power, turning a regular communication network into a supercharged “radar,” with high-precision and resolution perception capabilities.

You can also learn more about the solution here. The MIIT press release emphasises that Redcap is available as part of the solution.

Huawei recently shared a video of them deploying 5G infrastructure in Tibet. The video is embedded below:

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Tuesday, 15 October 2024

BT/EE’s Growing Dependence on Small Cells to Boost Network Performance

EE, the consumer division of BT Group, stands as one of the UK’s largest subscription businesses, serving 25 million customers. Backed by the UK’s fastest mobile network, EE claims to deliver superfast connections in more locations than any other mobile network operator in the country.

Back in March 2022, EE announced that it has successfully deployed 200 new small cells across its UK network to boost capacity in high demand areas, allowing customers to benefit from download speeds up to 300Mbps. The press release noted:

EE has successfully deployed 200 new small cells across its UK network to boost capacity in high demand areas, allowing customers to benefit from download speeds up to 300Mbps. Small cells are mobile radio cells that help to provide better coverage for customers at street level, where it’s often impractical to build larger sites. Located on a variety of existing street assets, including BT’s iconic red telephone boxes, the units offer discreet boosters for coverage and are part of EE’s investment to maintain the UK’s best network.

Working in partnership with Nokia, EE uses advanced network analytics to identify areas where small cells will deliver a boost to network performance. A 4G small cell solution is then deployed which uses multiple spectrum bands to give a better experience. EE’s licenced 1800MHz and 2600Mhz spectrum bands are coupled with unlicenced 5GHz spectrum, to deliver standout speeds in densely congested areas. Working with local authorities, EE is making use of existing street assets to minimise their impact, including lamp posts, CCTV columns and BT phone boxes.

As well as Leeds, London and Manchester, EE and Nokia have also brought these new small cells online in parts of Edinburgh, Glasgow, Liverpool, Newcastle, Nottingham and Scarborough. Hundreds more small cell deployments are planned in the next 18 months, as EE uses the technology to bring additional network capacity to more locations, including some summer hotspots. EE’s commitment to providing the highest possible quality of experience will also see its use of small cells extend to its 5G network, with trials expected to begin soon. Nokia’s AirScale portfolio can also be seamlessly upgraded to 5G.

Then a BT press release in June 2023 highlighted that EE now had 611 small cell sites carrying 20TB of data traffic every day – the equivalent of streaming 8,000 hours of HD video or 280,000 hours of music – demonstrating the substantial value they offer to customers in high demand areas, as well as the importance of EE’s strategy to build prior to the arrival of any congestion whenever possible.

The most recent announcement from Aug 2024 highlighted that EE has now deployed over 1000 small cells across the UK, marking 400 new deployments over the last 12 months including its first 5G sites, recently installed in Croydon, London. The press release said: 

EE’s first 5G small cells are also now live as part of a trial taking place in the London Borough of Croydon. Seven sites, including four along Croydon’s London Road – a busy thoroughfare lined with businesses, shops and homes – are now supporting the local community, seeing over 3TB of traffic each day.

EE uses advanced network analytics to identify specific locations which would benefit from the performance boost enabled by a small cell. It then works with partners Nokia and Ericsson to deploy the solution itself, reducing congestion and enabling customers to benefit from speeds of up to 300Mbps for 4G cells, and 600Mbps for 5G. EE is unique within Europe in combining licenced 1800MHz and 2600Mhz spectrum with unlicensed 5GHz spectrum in its 4G small cells, which helps to deliver excellent capacity and speeds. The new 5G cells in Croydon are configured with licensed 1800MHz spectrum for 4G and 3.5GHz for 5G.

In addition to the above announcements, Freshwave, a connectivity infrastructure-as-a-service provider, announced that they have deployed neutral host solution in the City of London and EE are the first MNO to go live on this infrastructure. Their press release said:

A first-of-its-kind outdoor small cell project in the City of London has been such a success that it has now moved beyond the trial phase. Twenty-five new sites for mobile network operator (MNO) EE are now live on Freshwave’s infrastructure, adding capacity and enhancing the 4G and 5G network experience for EE mobile users in one of the world’s preeminent financial districts. Dozens of additional new sites for EE are also currently being built and will enhance mobile connectivity to the UK’s best network(1) in even more of the Square Mile when they are brought live in the future.

Freshwave, a connectivity infrastructure-as-a-service provider, built new mobile infrastructure for the project and EE was the first MNO to go live in December 2022. Across all of the sites involved in the initial pilot, EE is seeing up to 7.5TB of data downloaded per week. 

Freshwave’s bespoke solution enables the network to accommodate all four MNOs on 4G and 5G from day one with no adjustments needed to the infrastructure – making it a UK first. The solution features specially designed wideband antennas, cabinets and columns and extensive dark fibre to each cabinet.

As a neutral host, Freshwave operates the network deploying shareable infrastructure, reducing equipment duplication and creating a more cost-effective solution. This approach also minimises street clutter and the associated disruption during street works. Shareable infrastructure also reduces the environmental impact, while still assuring the mobile connectivity people expect when out and about.

The 25 new live sites are strategically located throughout the Square Mile, including notable landmarks such as outside St Paul’s Cathedral, Cannon Street and the Bank of England on Threadneedle Street.

Outdoor small cells are installed at street level which make them ideal for adding capacity to mobile networks. In busy urban areas, where large numbers of people use their mobiles simultaneously, demand on the macro network can be substantial. Outdoor small cells help alleviate some of this demand themselves, relieving the macro network and ensuring a better experience for users. 

I anticipate many more announcements like these in the future, as the industry increasingly relies on higher frequencies to relieve capacity constraints in densely populated urban areas. 

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