Telecommunication Engineering Breakthroughs

Having dedicated my life to building communication satellites and constantly thinking about the future of global connectivity, I was thrilled to read that NASA will be demonstrating lasercom from the ISS. I believe that lasercom could very well supplant radio frequency communications within the next 5-10 years. Most space missions utilize radio frequency for data exchange with spacecraft. Radio waves have been the cornerstone of space communications since its inception, demonstrating their reliability over time. But as the volume of data from space missions intensifies, there's a growing imperative for advanced communication solutions. Laser communication boasts several advantages over traditional radio frequency communications. Not only does it offer higher data transmission rates, but its direct line-of-sight beam also provides inherent security. As the RF bands grow increasingly congested, lasercom emerges as a promising alternative. Without the constraints of spectrum licensing, it's particularly suited for the burgeoning satellite constellations in need of high-speed links. Who are my fellow comms geeks? 🤓

On 13 Nov, the Cybersecurity and Infrastructure Security Agency & the Federal Bureau of Investigation (FBI) released a statement (https://lnkd.in/ezrFy_4j) on the US government's investigation into PRC targeting of telco infrastructure: “PRC-affiliated actors have compromised networks at multiple telecommunications companies to enable the theft of customer call records data, the compromise of private communications of a limited number of individuals who are primarily involved in government or political activity, and the copying of certain information that was subject to U.S. law enforcement requests pursuant to court orders. We expect our understanding of these compromises to grow as the investigation continues." With the investigation ongoing, folks should take basic steps now to protect their personal communications. With gratitude to CISA's Senior Technical Advisor Bob Lord (https://lnkd.in/e-WxWiFF) consider the below steps: - Enable FIDO authentication or FIDO https://lnkd.in/ezzyha7t for email & social media accounts - Migrate off SMS MFA for all other logins. Migrate to FIDO/passkeys if you can, otherwise to an authenticator app - Use a password manager for all passwords. Use a strong pass phrase (https://lnkd.in/ebPpTAU5) for the vault password. - Set a telco PIN to reduce chances of a SIM-swap attack - Update the OS and all apps and turn on auto update Additional tips: 1. Encrypt all text and voice communications (some options): - Signal works well on iPhones & Android phones. - iMessage is great if all your contacts are within the Apple ecosystem, though that’s limiting - Collaboration suites like Google Workspace or Teams can work but don’t always encrypt as you might assume. For example, Teams encrypts data point-to-point, meaning it’s decrypted on Microsoft’s servers before re-encrypting it to the recipient. If you want end-to-end encryption, there’s an option, but it’s off by default and only supports two people on the call. - WhatsApp might be ok for some people based on their threat model but understand metadata it keeps (https://lnkd.in/eQkP-Ety) & how it's used (https://lnkd.in/eiZmxgi4). 2. If you use an iPhone disable these carrier-provided services that increase the attack surface: - Disable: Settings > Apps > Messages > Send as Text Message - Disable: Settings > Apps > Messages > RCS Messaging > RCS Messaging 3. Protect DNS lookups (some options): - Apple iCloud Private Relay - Cloudflare’s 1.1.1.1 resolver - Quad9’s 9.9.9.9 resolver 4. Use recent hardware: Apple (13 or newer) or Google (Pixel 6 or newer) 5. Depending on your threat model, consider enabling Lockdown Mode on iPhones: It will disable some features, but it’s manageable

Satellites generate more data in an hour than we can download in a day. Here's why that's about to change. Modern satellites collect an overwhelming amount of information - far more than we can transmit back to Earth quickly. But this isn't just a technical problem. It's potentially costing lives. Here's what's happening right now: When wildfires threaten homes: ↳ Satellite images showing their spread sit trapped for hours During hurricane season: ↳ Vital storm trajectory data reaches emergency teams late - when every minute counts Military operations rely on several-hour-old satellite intelligence ↳ In situations where seconds matter Think about that: We have the data to: • Protect lives • Mitigate disasters • Optimize operations But much of it's stuck in space, waiting to be downloaded. This is why AI-powered satellites are transforming space operations. Take the European Space Agency's new Φsat-2 satellite. Instead of blindly collecting and slowly transmitting back to Earth, it: • Processes images in orbit • Identifies what's actually important • Only sends down actionable intelligence The early indications are game-changing: • 80% reduction in transmission needs • Real-time disaster monitoring • Faster threat detection • Rapid weather pattern analysis Of course, AI in space faces challenges: → Cybersecurity risks → Regulatory constraints → Complex international coordination But the potential rewards are immense for those focusing on: • Reducing data transmission bottlenecks • Providing real-time, actionable insights • Solving critical infrastructure and monitoring challenges This goes beyond a “tech upgrade”. It's a powerful transformation in how we protect communities, save lives, and understand our planet. The old approach: Collect everything, transmit slowly, analyze later. The emerging reality: Think in orbit, send what matters, act immediately. Earth’s early warning systems are getting smarter. P.S: Join high-growth founders and seasoned investors getting deeper analysis on emerging tech trends and opportunities on my newsletter (https://lnkd.in/e6tjqP7y) ____________________________ Hi, I’m Richard Stroupe, a 3x Entrepreneur, and Venture Capital Investor I help early-stage tech founders turn their startups into VC magnets Building in space tech? Let's talk

Imagine being in a remote area with no signal—unable to make a call, send a message, or access the internet. For years, this has been a frustrating reality for millions of Indians. However, a new government initiative has now turned this challenge into an opportunity for transformation. The recently launched Inter-Circle Roaming (ICR) Facility enables users of telecom giants like Jio, Airtel, and BSNL to access 4G services through any available network, even if their own provider lacks coverage in a particular area. This breakthrough means that no matter where you are in India, you’ll remain connected, breaking the barriers of network limitations. Why This Is a Game-Changer 1. Empowering Rural and Remote Areas India’s vast geography includes regions where network coverage has traditionally been sparse. Farmers, healthcare workers, and students in these areas often face challenges accessing digital services. With the ICR facility, connectivity gaps are bridged, ensuring digital inclusion even in the remotest corners of the country. 2. A Lifesaver in Emergencies In times of crisis—natural disasters, medical emergencies, or accidents—lack of communication can cost lives. With the ability to use alternative networks, this initiative ensures that help is always just a call away. 3. Boosting Business Continuity For professionals and businesses, uninterrupted communication is critical. This facility not only ensures seamless connectivity during travel but also enhances productivity and operational efficiency. 4. Strengthening Digital India’s Vision This initiative aligns perfectly with the Digital India mission, fostering a more connected and digitally empowered society. It reflects a commitment to making India a leader in telecommunications innovation and ensuring equitable access to technology. The Technology Behind It The ICR facility leverages advanced network-sharing mechanisms, allowing telecom providers to collaborate instead of competing in areas with low signal coverage. It’s a fine example of how public and private sectors can join hands to create a win-win situation for everyone. A Step Towards Network Democracy Connectivity is no longer a luxury; it’s a necessity. By enabling users to access multiple networks without additional costs, this initiative levels the playing field for all telecom users. Whether you’re in a bustling city or a remote village, you now have the assurance of staying connected. What This Means for the Future This is just the beginning. As 5G technology becomes more mainstream, such collaborations and innovations will be key to making India one of the most connected nations in the world. Imagine a future where your device automatically switches to the best available network without you even noticing—and that future starts now. #DigitalIndia #ConnectivityForAll #TelecomInnovation #IndiaRising #SeamlessNetwork

LEO Satellites Are Becoming the Next Global Optical Backbone Low Earth Orbit (LEO) satellite networks are rapidly evolving from broadband access systems into a new global communications backbone. What is emerging is not just satellite internet, but an optical mesh in space that increasingly resembles how terrestrial fiber and subsea cables operate today. Constellations such as SpaceX Starlink, Amazon Project Kuiper, and Blue Origin’s TeraWave are deploying thousands of satellites at altitudes between roughly 480 and 630 km, with long-term roadmaps reaching tens of thousands of nodes. Beyond scale, the real architectural shift lies in Optical Inter-Satellite Links (OISL). Laser-based crosslinks allow data to be routed directly in orbit, reducing reliance on ground gateways while lowering latency and increasing overall network efficiency. Starlink already operates laser-equipped satellites forming a global optical mesh. Amazon has demonstrated 100+ Gbps optical crosslinks and plans to equip all Kuiper satellites with multi-directional laser terminals. New entrants such as TeraWave are positioning LEO and MEO systems explicitly as terabit-class space backbones for cloud, enterprise, and intercontinental connectivity. Most OISL systems are expected to operate in the near-infrared optical range, with 1550 nm widely regarded as the most practical wavelength due to component maturity, eye safety, and compatibility with coherent optical technologies. Looking ahead, WDM, higher-order modulation, and coherent transmission will push inter-satellite capacity from today’s 100–200 Gbps toward 1 Tbps and beyond per link. This evolution raises a fundamental question: can LEO constellations converge into a unified global backbone, similar to today’s subsea fiber networks? While architectures remain proprietary for now, progress in 3GPP NTN and future 6G frameworks points toward deeper integration between terrestrial and space networks. If OISL standards converge at the physical and network layers, inter-constellation routing may eventually become feasible. In that scenario, Earth orbit itself becomes a planet-scale optical transport layer, seamlessly integrated with ground fiber and data centers. LEO is no longer just about coverage—it is about redefining how global data moves.

Following cyber espionage by PRC-affiliated actors against multiple US-based telcos, #CISA and partners have released guidance for telcos, which offers some clues as to what might have happened. The espionage campaign by PRC-based actor nicknamed Salt Typhoon (presumed to be PRC MSS), enabled theft of customer call data records, private communications of government and political individuals, and copying of lawful intercept information, from AT&T, Verizon, and Lumen. In other words, Salt Typhoon were presumably able to spy on US government comms, track everyone's movements and calls, and see who is being wiretapped - potentially for several years. The "Enhanced Visibility and Hardening Guidance for Communications Infrastructure" was released on Tuesday by #CISA, #NSA, #FBI, and cyber agencies from Australia, NZ, and Canada, and includes advice on how to defend telco networks. The guidance states up front that "no novel activity" was observed - the threat actors exploited existing vulnerabilities. At a high level, the key points for hardening are: 🔒 Do not expose management interfaces to the Internet, and make sure they do not use default passwords! This seems to be a problem in a lot of critical infra. 🔒 Keep management networks separate from data networks, and default deny inbound and outbound network traffic that is not needed. 🔒 Deploy security patches (especially on vulnerable Cisco hardware) - note that these attackers are not using 0-days. 🔒 Log authn, configuration changes, and network traffic on critical interfaces, then send logs encrypted to a central logging system (SIEM). 🔒 Use only strong, approved encryption algorithms. 🔒 Use phishing resistant MFA for accounts accessing sensitive systems. For telco customers (ie. everyone!) this means we need to take attacker-in-the-middle threats seriously. The FBI and CISA have warned that SMS and phone calls are not secure, and you should use an end-to-end encrypted messaging app (eg. iMessage/FaceTime, Signal, WhatsApp). I never thought I would see the day!

Something is wrong with this image and so many others that I continue to see presented at 5G-related conferences. Can you see it? YES!!! The 5G Hype depends on telco's and their cell towers coverage to enable connectivity. But while everyone's obsessed with smart cities and connected factories, something incredible is happening in the countryside... 🤫 The 5G Secret No One's Talking About 🤫 Developing countries have a chance to #leapfrog the developed world! Forget fancy urban tech – the real magic of 5G is bringing high-speed internet to the places that have been left behind. This can happen when we focus efforts to bring #infrastructureless data connectivity to #remotecommunities. With such connectivity, we can unlock #productivity and unleash innovations in implementing ideas like #remoteeducation, #telemedicine, and even #microfinancing. Imagine this: 👨🌾 Farmers in remote villages using IoT sensors to grow better quality food. 👩🏫 Kids in the most isolated communities accessing world-class education online. 👨⚕️ Doctors (Veterinarians) diagnosing patients (livestock) remotely with crystal-clear video calls (as in our Desaru Farm's case). This isn't science fiction, it's happening right now! We #showbydoing 🤯 We setup our man-portable "cell towers" in under 10 min, bringing superfast internet to the most remote corners of the world. (See the joy on these farmers' faces when they made their first group video call on 4 Sep 2024: https://lnkd.in/gqf_mJZb) If you are passionate about bridging the digital divide and believe in empowering communities through connectivity, let's connect so we can share more! Together, let us bring infrastructureless 5G connectivity to remote communities. Image Credit: zvelo.com #5G #SmartIoTcities #innovation #connectivity #leapfrogging

How would you stop a stealthy telecom APT like #SaltTyphoon? Most only react when it’s too late. After researching the Salt Typhoon exploit chain, from unpatched routers to covert data exfiltration. I developed a layered security architecture designed explicitly for telecom networks, integrating detection, hardening, and proactive validation at every stage. Here’s how I broke it down: 1️⃣ Edge Routers: Exploit attempts, such as CVE-2023-20198, demand firmware lockdown and a Suricata-based IDS. 2️⃣ Infrastructure Core: Rootkits like Demodex evade traditional detection — NDR and FS integrity checks are critical. 3️⃣ Lawful Intercept Systems: Often overlooked, these mediation layers need strict RBAC and mTLS. 4️⃣ CDR & Subscriber DBs: Protecting metadata isn’t just a compliance task — SQL behavior analytics and field-level tokenization help stop insider-style exfil. 5️⃣ Egress Channels (DNS/TLS): Covert exfiltration over DNS or TLS? We apply deception, beacon pattern detection, and strict egress control. But defense isn’t enough; that’s where X-SCAS comes in. Our platform simulates adversarial behaviors (rootkit drops, DNS tunnels, exploit attempts) to validate if your security controls truly work, not just on paper, but in live environments. Security assurance isn’t a checkbox — it’s an active, evolving commitment. I’ve included the architecture diagram that ties it all together — zone by zone, control by control. If you’re in telecom, infrastructure, or critical services, this might save you hours of design and maybe millions in breach costs. Would love your thoughts on how you are validating your defenses against today’s APTs? DM or Comment if you want a detailed guide on the attack analogy of the Salt typhoon cyber incident with detection, prevention, and hardening guidelines. Proud of the work that we do at #xecuritypulse X-LAB, in preparing practical use cases, aimed to secure National Infrastructure and complement the work of #CISA #tahasajid #Cybersecurity #TelecomSecurity #APTDefense #XSCAS #ThreatModeling #ZeroTrust #SaltTyphoon #5GSecurity #RedTeam #NetworkHardening #SecurityArchitecture #CISA #AIRANALLIANCE #3GPP #GSMA #ORAN

5G & Non-Terrestrial Networks (NTN) The integration of 5G and Non-Terrestrial Networks (NTN) is more than just "satellites in the loop" - it’s a fundamental shift in how we think about the protocol stack. As we move through 2026, the convergence of space and terrestrial 5G is moving from "pilot" to "production." Integrating NTN into the 3GPP stack (from Release 17 through Release 19/20) requires specific architectural "hacks" to handle the laws of physics. Here is how the 5G stack adapts for the sky: 🔹 PHY & MAC: Conquering the Void Doppler & Delay: With LEO satellites moving at $7.5 \text{ km/s}$, frequency shifts are massive. The PHY layer now uses GNSS-based pre-compensation to ensure the signal stays locked. HARQ Enhancements: Standard terrestrial retransmission (HARQ) breaks down with satellite propagation delays ($540 \text{ ms}$ for GEO). The stack now supports asynchronous HARQ and "disabling feedback" for specific IoT cases to keep data moving without waiting for a round-trip "ACK." 🔹 PDCP & SDAP: Efficiency at Scale RoHC (Robust Header Compression): In NTN, spectrum is gold. PDCP uses advanced compression to ensure that headers don't eat up the limited satellite bandwidth. QoS Mapping: SDAP manages flow handling, ensuring that a "Direct-to-Device" SOS signal or critical IoT packet gets prioritized over a background software update—even when crossing between a tower and a satellite. 🔹 RRC: The Mobility Master Handover 2.0: Moving between "cells" that are hundreds of kilometers wide and traveling at orbital speeds - requires RRC to be smarter. We now see conditional handovers and "earth-fixed" vs. "earth-moving" cell logic to maintain seamless sessions. Why it matters now: By 2026, we aren't just looking at specialty terminals; we are seeing Direct-to-Smartphone connectivity. The "Cellular-Vehicle-to-Everything" (C-V2X) and Maritime sectors are no longer limited by the reach of a physical tower. The future of 5G isn't just on the ground - it’s a unified, multi-orbit ecosystem. To learn more, refer: https://lnkd.in/eYNeGbBm

📡 5G Non-Terrestrial Networks (NTN): The 3GPP Technical Evolution 🌍 As the world strives for seamless global connectivity, Non-Terrestrial Networks (NTN) are becoming a crucial part of 5G’s evolution. Thanks to 3GPP’s contributions, NTNs are no longer a concept—they’re becoming a reality. Here’s a technical dive: 1️⃣ What Are NTNs in 5G? Defined by 3GPP Releases 15-18, NTNs extend 5G capabilities beyond terrestrial networks by integrating: Low Earth Orbit (LEO) and Geostationary Orbit (GEO) satellites. HAPS (High-Altitude Platform Systems) like balloons or drones. A seamless connection between satellites and 5G base stations. 2️⃣ 3GPP Enhancements for NTNs 3GPP has developed key updates to integrate NTNs into the 5G ecosystem: RAN Modifications: Adapting 5G NR to support satellite communication, including Doppler shift corrections and large round-trip latencies. Channel Models: Designing new propagation models to account for NTN-specific scenarios like atmospheric and space signal attenuation. Timing Adjustments: Addressing delays in uplink and downlink caused by long satellite distances. 3️⃣ Use Cases Defined by 3GPP eMBB (Enhanced Mobile Broadband): High-speed connectivity for remote areas, aviation, and maritime applications. IoT Expansion: NTN supports massive IoT for remote sensing, agriculture, and logistics. Emergency Services: NTNs ensure resilience during disasters where terrestrial networks fail. 4️⃣ Key Challenges Addressed by 3GPP Latency Mitigation: Techniques for handling propagation delays in LEO and GEO satellites. Doppler Effect: Advanced compensation methods for satellite-induced frequency shifts. Integration with Terrestrial Networks: Seamless handovers and interoperability with ground-based 5G networks. 5️⃣ 3GPP Release Highlights Release 15-17: Defined initial NTN features, including satellite-based eMBB and latency management. Release 18 (5G Advanced): Expands NTN scope for enhanced capabilities, including flexible spectrum usage, better mobility management, and optimized power efficiency. 6️⃣ Future with NTNs 3GPP is laying the groundwork for NTNs to play a vital role in 6G, where satellites, HAPS, and terrestrial networks will integrate seamlessly to create a global communication fabric. #5G #NTN #3GPP #TelecomInnovation