Evolution of Air Interface towards 5G

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.

• 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