Why enroll

This course helps participants understand how 5G networks really work at the air interface level. It builds strong fundamentals of key 5G technologies like NR, mmWave, and Massive MIMO. The knowledge gained is useful for careers in wireless communication, research, and advanced mobile networks.

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Course content

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Evolution of Air Interface towards 5G

25 Lectures

743 min

Evolution of Air Interface towards 5G
Preview
12 min
Evolution of wireless Communication
28 min
Evolution of wireless Communication Standards From 2G to 5G (Part-I)
28 min
Evolution of wireless Communication Standards From 2G to 5G (Part-II)
30 min
Evolution of wireless Communication Standards From 2G to 5G (Part-III)
29 min
Evolution of wireless Communication Standards From 2G to 5G (Part-IV)
29 min
Requirements and operating scenarios of 5G
35 min
Requirements and operating scenarios of 5G (contd.)
26 min
5G scenarios
28 min
Ultra reliable low latency communication
29 min
Designing 5G new radio
33 min
Fundamental Framework for waveform analysis
28 min
Fundamental Framework for waveform analysis (cont.)
27 min
Waveforms in 3G
29 min
Waveforms in 3G (cont.)
32 min
Waveform Design Aspects of 2G
31 min
Waveform in 4G and 5G (OFDM)
28 min
Waveform in 4G and 5G (OFDM) contd.
34 min
Waveform in 4G and 5G (OFDM) contd
33 min
Waveform in 4G and 5G (OFDMA)
31 min
Waveform in 4G and 5G (OFDMA, SCFDMA, SCFDE )
36 min
Waveform in 4G and 5G (SCFDMA cont.)
35 min
Waveform in 5G
33 min
Waveform in 5G Numerology
27 min
Frame Structure in 5G NR
32 min

Course details

The air interface is one of the key elements that distinguishes 2G, 3G, 4G, and 5G mobile communication systems. While 3G systems were based on CDMA and 4G systems adopted OFDMA, this course focuses on the air interface design of 5G networks. Whereas 4G enabled a large number of infotainment services, 5G is designed to support extremely low latency services, reliable communication in dense user environments, enhanced mobile broadband (making applications like virtual reality practical), ultra-reliable and secure connectivity, ubiquitous quality of service, and highly energy-efficient networks.These ambitious requirements are achieved through several advanced technologies, including: (i) new waveforms known as 5G New Radio (NR), (ii) millimeter-wave communication, (iii) massive multiple-input multiple-output (MIMO) systems, (iv) non-orthogonal multiple access (NOMA), (v) heterogeneous networks such as small cells and device-to-device communication, (vi) energy-efficient radio access network designs, and (vii) mechanisms to ensure ubiquitous quality of service.This course aims to provide a strong understanding of the fundamental principles behind these technologies, which together form the core of the 5G air interface. The course begins with an overview of 5G technology and its key features. It then covers the 5G New Radio waveform, its evolution, and different variants. This is followed by an introduction to non-orthogonal multiple access schemes. The course also explores millimeter-wave communication techniques and massive MIMO systems, focusing on their basic building blocks and design challenges. In addition, essential propagation models required for performance analysis are briefly discussed. Finally, the course presents performance analysis of heterogeneous networks, including small cells and device-to-device communication.

Source: NPTEL IIT Kharagpur [Youtube Channel]

Course suitable for

Automotive
Electrical
Engineering & Design
Project Management
Research & Developmnet

Key topics covered

Evolution of Air Interface towards 5G
Evolution of Wireless Communication
- Growth from basic voice services to high-speed data
- Increasing user demand and new applications
Evolution of Wireless Communication Standards from 2G to 5G (Part-I)
- Introduction to 2G systems
- Digital voice and basic data services
Evolution of Wireless Communication Standards from 2G to 5G (Part-II)
- Transition to 3G
- Packet data and multimedia services
Evolution of Wireless Communication Standards from 2G to 5G (Part-III)
- Emergence of 4G LTE
- High-speed data and IP-based networks
Evolution of Wireless Communication Standards from 2G to 5G (Part-IV)
- Limitations of 4G
- Motivation for 5G development
Requirements and Operating Scenarios of 5G
- High data rate
- Low latency
- Massive connectivity
Requirements and Operating Scenarios of 5G (Contd.)
- Support for diverse applications
- Flexible and scalable network design
5G Scenarios
- Enhanced Mobile Broadband (eMBB)
- Massive Machine Type Communication (mMTC)
- Ultra-Reliable Low Latency Communication (URLLC)
Ultra-Reliable Low Latency Communication (URLLC)
- Mission-critical applications
- Industrial automation
- Autonomous vehicles
Designing 5G New Radio (NR)
- Flexible numerology
- Scalable frame structure
- Support for multiple frequency bands
Fundamental Framework for Waveform Analysis
- Time and frequency domain concepts
- Performance metrics
Fundamental Framework for Waveform Analysis (Contd.)
- Spectral efficiency
- Interference and robustness
Waveforms in 3G
- CDMA-based transmission
- Spread spectrum techniques
Waveforms in 3G (Contd.)
- Power control
- Multiple access schemes
Waveform Design Aspects of 2G
- Narrowband transmission
- Emphasis on voice quality
Waveforms in 4G and 5G (OFDM)
- Orthogonal Frequency Division Multiplexing
- High spectral efficiency
Waveforms in 4G and 5G (OFDM) (Contd.)
- Resistance to multipath fading
- Simple equalization
Waveforms in 4G and 5G (OFDM) (Contd.)
- Cyclic prefix
- Subcarrier spacing
Waveforms in 4G and 5G (OFDMA)
- Multi-user access
- Resource block allocation
Waveforms in 4G and 5G (OFDMA, SC-FDMA, SC-FDE)
- Comparison of uplink and downlink schemes
- Power efficiency considerations
Waveforms in 4G and 5G (SC-FDMA) (Contd.)
- Lower PAPR
- Uplink advantages
Waveform in 5G
- Flexible waveform design
- Support for diverse use cases
Waveform in 5G – Numerology
- Variable subcarrier spacing
- Adaptation to different frequency bands
Frame Structure in 5G NR
- Flexible slot duration
- Support for low latency and high reliability

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