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5G Radio

Duration : 2 days

Objectives : Understand 5G Radio Access Technology (RAT). Understand Massive MIMO and Beam Forming in 5G. Understand 5G NR Protocol Stack. Learn the 5G NR Radio Access Network (RAN) Deployment Options. Understand 5G NR Air Interface.

Who should attend : Telecommunications engineer, telecommunications consultant, telecommunications architect

Prerequisites : General knowledge on mobile radio networks

Course outline : This course provides an in-depth description of 5G New Radio (NR) technology as defined by 3GPP standards and specifications. The content and flow are structured to introduce the NR air interface with a focus on technical design principles and their impacts on performance and deployments. Starting with a brief background on the 5G requirement, standardization landscape, and roadmap, and following a short review of the LTE air interface, the course presents 5G RAN and Core, architecture, and protocol structure. The discussion is then followed by a detailed description of the physical layer including time and frequency resource structure, channelization, scheduling, transmission protocols.
The course also presents the step by step process followed by a UE from downlink synchronization to uplink access and operation in the connected mode under power saving, mobility, and beam management.

1. Introduction
1.1. 5G genesis
1.2. Economic outlook
1.3. Expected performance
1.4. Expected 5G services
1.5. 5G trials worldwide
1.6. 5G standardization schedule

2. From E-UTRAN (4G) to NG-RAN (5G)
2.1. 4G architecture and its entities
2.2. 5G Equipment, Interfaces and Protocols: gNB, Xn, N2 and N3 interfaces, NG-AP, Xn-AP & radio protocols, Cloud RAN (CU / DU, split options, eCPRI)
2.3. Interaction with the core network: NSA/SA concept, NAS protocol

3. Radio interface
3.1. Physical Channels:
3.2. 5G frequencies,
3.3. Numerology and structure: OFDM 4G and OFDM 5G, modulations, frame & slot, FDD/ TDD, BWP
3.4. DL Channels: PSS, SSS, PBCH, PDCCH, PDSCH, CSI-RS, DM-RS, PT-RS reminders
3.6. Related items:
3.6.1. Channel Coding: HARQ development, from Turbo Coding to LDPC/Polar Code
3.6.2. Link Adaptation: AMC, Power Control, CQI, Scheduling, BWP
3.6.3. Protocols: MAC, RLC, PDCP, SDAP, RRC
3.6.4. 5G MIMO: SU-MIMO, MU-MIMO & Beamforming
3.6.5. Carrier Aggregation & Dual Connectivity
3.6.6. Backhauling aspects: self-Backhauling

4. Radio procedures
4.1. Management of the Radio Connection:
4.1.1. Synchronization and cell selection
4.1.2. RACH aspects
4.1.3. RRC connection states
4.1.4. DRX aspects
4.1.5. SysInfo aspects
4.1.6. Power control
4.1.7. Timing Advance
4.2. Traffic management:
4.2.1. Resource allocation process
4.2.2. Radio Bearer: concept,
4.2.3. QoS & 5G: from 4G QCI to 5G 5QI, associated procedures
4.3. Mobility management:
4.3.1. Cell selection & re-selection
4.3.2. Handover mechanisms: management of measures, handover procedures
4.3.3. Paging procedures
4.4. Related issues
4.4.1. Identities: UE and Network Elements
4.4.2. Slicing aspects
4.4.3. From 4G SON to 5G SON
4.4.4. From 4G RAN Sharing to 5G RAN Sharing

5. 5G NR Phase 2 Evolution
5.1. Towards a more filtered OFDM: FBMC, F-OFDM?
5.2. MMTC optimizations
5.2.1. NOMA
5.2.2. SCMA
5.2.3. From 4G LTE-M/NB-IoT to 5G-IoT
5.3. URLLC optimizations:
5.3.1. From 4G D2D to 5G D2D
5.3.2. 5G-V2X optimization
5.3.3. Grant Free Operation
5.4. MBMS: from eMBMS to 5G MBMS

6. Performance elements
6.1. Throughput & capacity
6.2. UE categories
6.3. Radio engineering factors: link budget, service model and dimensioning

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