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3GPP Release 15 - RAN Features
3GPP Release 15 — Detailed Technical Analysis Across RAN Working Groups 3GPP Release 15, finalized in June 2018, marks the first commercial standardization of 5G New Radio (NR). It laid the foundation for 5G networks through Standalone (SA) and Non-Standalone (NSA) modes, introducing a service-based, virtualized core network and new physical-layer technologies for enhanced capacity, latency, and flexibility. Below is a detailed breakdown of RAN1–RAN5 contributions, along with
Venkateshu Kamarthi
Oct 16, 20254 min read
5G Non-Standalone (NSA) Option-3x - UE Attach Procedures
Introduction In 5G Non-Standalone (NSA), 5G NR (New Radio) is deployed alongside existing 4G LTE infrastructure. The 4G LTE network acts...
Venkateshu Kamarthi
May 5, 20254 min read
Integrated Access and Backhaul (IAB) in 5G
Introduction Building of new 5G networks, especially on new high-frequency mmWave bands, requires much denser cell sites than in...
Venkateshu Kamarthi
Apr 2, 20254 min read
eCPRI in O-RAN Fronthaul Deployment (O-DU <-> O-RU Communication)
In O-RAN (Open RAN) architecture, eCPRI plays a crucial role in the fronthaul interface between the O-DU (O-RAN Distributed Unit) and...
Venkateshu Kamarthi
Mar 23, 20253 min read
O-RAN Fronthaul Split 7-2x Architecture
Split 7-2x is a widely adopted split option in O-RAN that defines how PHY layer functions are distributed between the DU and RU ....
Venkateshu Kamarthi
Mar 19, 20252 min read
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