5G NR Call Processing: Non-Standalone Mode

The course introduces non-standalone mode in 5G NR call processing, then discusses EN-DC options 3/3a/3x, EN-DC procedures, beam management, and key MAC/PHY procedures.

PREREQUISITES
• Basic LTE and LTE Advanced Technical Knowledge

OBJECTIVES
• List the main requirements that are driving the development of 5G NR technologies.
• Describe 5G NR deployment scenarios.
• Introduce 5G NR waveform and numerology.
• Explain the 5G frame structure and use cases for self‑contained slots.
• Discuss 5G NR channel coding: Low Density Parity Check (LDPC) codes, and Polar codes.
• Compare the Air Interface design for 5G NR with LTE.
• Provide an overview of dual-connectivity in LTE.
• Introduce NR Protocol Layer 2 functions.
• Explain EN-DC Options 3, 3a, and 3x: Architecture and Benefits
• Protocol Stack for U-Plane and C-Plane
• Discuss bearer reconfiguration in EN-DC.
• Discuss how NSA UE obtains NR cell information for initial access.
• Explain NSA NR Cell Acquisition, including the role of PSS, SSS and PBCH (SS-PBCH Block).
• Present the beam sweeping operation.
• Describe the RACH process and concept of beam correspondence.
• Provide an overview of LTE-NR Common procedures.
• Explain the EN-DC Attach and PDN Establishment procedure.
• Discuss EN-DC NR Measurement procedure.
• Explain EN-DC Connected mode operation for NR Add and Release.
• Discuss NR Carrier Aggregation in EN-DC.
• Introduce Beam Management in 5G NR.
• Describe various procedures for Beam establishment.
• Explain CSI-RS for Beam Management.
• Introduce TCI States and QCL concepts for Beam Management.
• Discuss Uplink Beam Management.
• Describe NR PDCCH CORESET and Slot Format Configurations.
• Discuss Preemption settings.
• Discuss Reference Signals and DMRS Configuration.
• Explain HARQ Procedures for DL and UL.
• Explain the role of BSR in split-bearer UL traffic routing.

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