5G non-standalone access

Signaling flow for 5G access via LTE-5G NR dual connectivity (EN-DC)

EventHelix
Sep 16, 2018 · 6 min read
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Adding 5G data plane to existing 4G LTE sites (credit: Samsung)

Overview

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5G Non-standalone (NSA) overview

5G Non-standalone access detailed flow

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LTE-5G NR Dual Connectivity (EN-DC) detailed flow

Adding EPC details in non-standalone access flow

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LTE-5G NR Dual Connectivity (EN-DC) flow with EPC details

Role of different entities in the EN-DC flow

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UE role in 4G-5G dual connectivity
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5G-gNB role in Non-standalone access
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LTE-eNB role in EN-DC dual connectivity
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EPC role in setting up an EN-DC session

EN-DC message details

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Non-standalone EN-DC signaling details

5G Non-Standalone Videos

Overview of the Non-Standalone Access (NSA) Architecture
EN-DC: 4G signaling details, 5G measurements, and 5G initial access

Learn More

5G NR Call Flows and Tutorials

5G NR

5G New Radio

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