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This chapter examines the 3GPP-based air interface, Layer 1, focusing on the time and frequency domain numerologies of 4G and 5G networks. Key physical layer parameters are explored, such as subcarrier spacing, symbol duration, number of FFT points, slots, subframes and frames. Through detailed explanations and examples, the chapter sheds light on the fundamental aspects that govern the transmission and reception of wireless signals in modern cellular networks.

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3GPP-Based Air Interface, Layer 1

  • 章节

  • 发表日期：

    2025年

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  • Ivo Maljević,
  • Faris Alfarhan,
  • Raviraj Adve

摘要

This chapter examines the 3GPP-based air interface, Layer 1, focusing on the time and frequency domain numerologies of 4G and 5G networks. Key physical layer parameters are explored, such as subcarrier spacing, symbol duration, number of FFT points, slots, subframes and frames. Through detailed explanations and examples, the chapter sheds light on the fundamental aspects that govern the transmission and reception of wireless signals in modern cellular networks.