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Session 4- 5G E2E User Plane Explained: NR HARQ Deep Dive

Mohamed ELAdawi

13 Feb 2025

Everything you need to know about 5G HARQ. This video covers the following key topics:

HARQ Feedback Loop- Typical Pipeline
HARQ Retransmission- Soft Combining Overview
HARQ Retransmission- Chase Combining
HARQ Retransmission- Incremental redundancy
HARQ Process Stop-AND-Wait
HARQ Retransmission- Code Block Group based
Timing of Uplink HARQ Acknowledgments
Multiplexing of HARQ acknowledgments types
HARQ Features- Semi-Static Codebook
HARQ Features- Dynamic Codebook
HARQ Features- Spatial Bundling
4G Vs. 5G HARQ

15 NR(5G) RAN Features Explained: Ace Your Interview Preparation

Prepare for your next interview with this quick and clear breakdown of important 5G RAN features/parameters. (Video added below) Content: Key 4G/5G Uplink (UL) Features & Enhancements * 4G/5G UL 256QAM – Higher-order modulation for increased uplink capacity and throughput. * PUSCH Waveform Adaptation – Optimizing uplink signal waveform for better

Session 3: 5G E2E User Plane Explained: TCP Data Flow Basics

Session 3 of the E2E User Plane and RAN Protocol series is now uploaded. This video provides a detailed look at the E2E User Plane and RAN protocols, focusing on TCP and its interaction with PDCP, the TCP handshake process, and various retransmission mechanisms. Topics Covered: * User Plane Data TCP/

Session 2: 5G E2E User Plane Explained: PDCP Related parameters

This video takes a deep dive into radio protocol, we’ll explore the interplay between TCP/PDCP and PDCP related timers in details .

Session 1: 5G E2E User Plane Explained: RLC Deep dive

This video takes a deep dive into radio protocols, simulating the data flow between the UE and gNodeB while breaking down key timers and parameters such as t-Reordering and T-PollRetransmit . Additionally, we’ll explore the interplay between TCP/PDCP and RLC/MAC retransmission-related timers. This video covers the following topics:

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15 NR(5G) RAN Features Explained: Ace Your Interview Preparation

Session 3: 5G E2E User Plane Explained: TCP Data Flow Basics

Session 2: 5G E2E User Plane Explained: PDCP Related parameters

Session 1: 5G E2E User Plane Explained: RLC Deep dive