6G & standards
RAN architecture · ISAC · NTN/TN · system evolution
Researcher / Engineer / Inventor / Curious Amateur
Chathura
Sarathchandra
Researching and building the systems behind the next generation of communication.
*home*
;; current bufferresearch-workbench
Current focus
The questions and systems I am concentrating on now.
Intelligent systems
AI-native networking · agents · distributed intelligence
Quantum communications
QKD · networking · standards · integration
Interactive systems
XR · edge/cloud · distributed applications
Selected work
A few things I am building, contributing to or documenting.
Latest thinking
Notes and essays from the workbench.
Network-Assisted Rate Adaptation for XR and Immersive Media: How 5G-Advanced, NWDAF, and O-RAN Enable Application-Network Collaboration
NetXRate shows how 5G/O-RAN intelligence can give XR apps per-flow rate recommendations before quality drops, cutting simulated XR outages by up to 96% while improving fairness for eMBB traffic.
12 min read
3GPP RAN2 #133bis: 6G Control Plane Starts to Narrow Around Simpler SI, Paging and Mobility
3GPP RAN2 #133bis showed 6G RAN2 moving toward simpler system information, single paging, cleaner mobility and unified energy-saving behavior.
18 min read
RAN3 #131-bis: 6G RAN Architecture and NR ISAC Move Toward June Decisions
Technical recap of 3GPP RAN3 #131-bis in Malta, covering Release 20 progress on 6G RAN architecture, P2P vs SBI for the RAN-CN interface, 6G data collection, HLS, Xa, and NR ISAC architecture and procedures.
16 min read
TSG RAN#111 in Fukuoka: the plenary where 6G stopped being a concept and started becoming a system
TSG RAN#111 in Fukuoka marked a turning point for 6G. As TR 38.914 neared completion, RAN shifted from vision to engineering—resolving key debates, aligning Release 21, and advancing AI/ML, ISAC, NTN, and Ambient IoT into concrete standardization paths.
5 min read
What I Learned at the UK National Quantum Technologies Showcase 2025
Business Design Centre, London – 7 November 2025 TL;DR. Quantum tech has left the lab. At this year’s UK National Quantum Technologies Showcase, I saw navigation and
8 min read
Reading
Books I have marked as favourites, grouped by the year I finished them.
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PublicationsSelected papers & chapters →
PatentsPortfolio & inventions →
ProjectsResearch & tools →
ServiceProfessional activities →