What you'll learn:
- 5G Non-Terrestrial Networks (NTN) Use Cases
- 5G NTN Architectures
- 5G NTN Standardization by 3GPP
- PDU session in 5G NTN
- Multi-Connectivity Scenarios Involving 5G NTN
- 5G NR Architecture Protocol Changes to Support 5G NTN
- Mobility Procedures
- Conditional Handover (CHO)
- PCI Planning Principles in 5G NTN
- Feeder Link Switchover
- Timing Advance (TA) for Uplink Synchronization in 5G NTN
- K_offset & K_mac Enhancement in 5G NTN
- HARQ Enhancements in 5G NTN
Welcome to our course on 5G Non-Terrestrial Networks (NTN), where we explore the groundbreaking integration of satellite technology into 5G architecture. As global demand for reliable and fast connectivity grows, NTN is revolutionizing how we think about communication networks by extending coverage to even the most remote areas on Earth. This course offers a comprehensive dive into the key components, use cases, and architecture of 5G NTN, with detailed insights into satellite orbit types, the role of leading satellite providers, and the latest standardization efforts. Whether you are a telecommunications professional, a tech enthusiast, or a student in communications technology, this course will equip you with the knowledge to harness the potential of NTN in 5G networks.
Course Contents:
Section 1: Introduction to Non-Terrestrial Networks (NTN)
5G NTN Use Cases
Satellite Orbit Types:
1. Geostationary Earth Orbit (GEO)
2. Medium Earth Orbit (MEO)
3. Low Earth Orbit (LEO)
Path Loss for Different Earth Orbits
Existing Satellite Internet Providers: SpaceX, OneWeb, Amazon
5G NTN Architecture Terminologies
5G NTN Architecture with Transparent Payload
5G NTN Architecture with Regenerative Payload (gNB on board)
5G NTN Architecture with Regenerative Payload (Split gNB)
Inter-Satellite LInks (ISLs)
5G Standardization Roadmap
5G NTN Standardization in Release 15 & 16
5G NTN Standardization in 3GPP Release 17 & 18
Satellite Communication Frequency Bands
5G NTN Channels on Service Link
ITU-R Frequency Ranges Above 10 GHz for Feeder LInk
Section 2: PDUSession in 5G NTN
PDU Session in Transparent Payload-based 5G NTN
PDU Session in Regenerative Payload-Based 5G NTN
PDU Session in Regenerative Payload-Based 5G NTN (Split gNB)
Section 3: Multi-Connectivity Scenarios Involving 5G NTN
Dual Connectivity (DC) Between an NTN gNB (transparent payload) and a terrestrial gNB
DC Between Two NTN gNBs (transparent payload)
DC between an NTN gNB-DU (regenerative payload) and a terrestrial gNB
DC between an NTN gNB-DU (regenerative payload) and a terrestrial gNB
Other Multi-Connectivity Scenarios
Mobility between TN and NTN
Section 4: 5G NR Architecture and Protocol Changes to Support 5G NTN
Antenna Polarization in 5G NTN
Tracking Areas in 5G
Moving Vs Fixed Tracking Areas in 5G NTN
Hard Vs Soft Switch in Fixed Tracking Area Update
Mobility Procedures in 5G NTN
Location and Time based Conditions
Conditional Handover (CHO) in 5G NTN
Introduction to PCI Planning in 5G NTN
PCI Planning Principles: 1) Collision Free 2) Confusion Free
PCI Planning in Earth Fixed & Earth Moving Satellites
Feeder Link Switchover in 5G NTN
Soft Feeder LInk Switchover (Transparent LEO, different gNBs)
Hard Feeder LInk Switchover (Transparent LEO, different gNBs)
Feeder Link Switchover (Regenerative Satellite, full gNB on board)
Timing Advance (TA) for Uplink Synchronization in Terrestrial Networks
UL Synchronization in 5G NTN with Regenerative Payload
TA in 5G NTN with Transparent Payload
Common Timing Advance (TA)
UE-specific TA
5G NTN Uplink Synchronization Procedure in Rel 17
Validity Duration of Open-Loop TA Parameters
K_offset Enhancement in 5G NTN
HARQ (Hybriq Automatic Repeat reQuest) Mechanism in 5G NR
HARQ Stalling in 5G NTN & Its Solution
How to Calculate the Minimum Number of HARQ Processes Required?
Number of HARQ Processes in 5G NTN
MAC CE Timing Relationship Enhancement With K_mac
Section 5: 3GPPWorking Groups on 5G NTN Standardization
3GPP Working Groups
Progress of 3GPP Working Groups in Release 17
Study Items (SIs) and Work Items (WIs) in 3GPP Release 18
