Wireless Communication Standards - Part IV — Lesson 4

This lesson covers the how LTE-Advanced meets the requirements of IMT-Advanced, making it a 4G technology. The lesson also explores the technical outline to achieve LTE-Advanced requirements, including bandwidth, downlink OFDMA, uplink DFT spread OFDM, and MIMO. It further delves into the concept of coordinated multi-point transmission and reception, and the role of base stations in enhancing user experience. The lesson concludes with a look at the requirements and operating scenario analysis of IMT-2020 or 5G.

Video Highlights

00:18 - Introduction
01:01 - System performance requirements and technical outline to achieve LTE advanced requirements
06:45 - Multi-point transmission, coordinated pre-coding, beam forming and RRA
09:46 - Generalized system model and hexagonal cell layout
16:03 - Requirements of 5G and IMT-2020
25:57 - User and applications trends of IMT systems

Key Takeaways

- The transition from LTE to LTE-Advanced results in an increase in bits per second per hertz per cell.
- LTE-Advanced uses bandwidth up to 100 megahertz, downlink OFDMA with component carrier-based structure, uplink DFT spread OFDM, and MIMO.
- The coordinated multi-point transmission and reception in LTE-Advanced allows for better spectral efficiency.
- The requirements for 5G or IMT-2020 are expected to be more challenging, with a need for very high data rates, a large number of connected devices, ultra-low latency, and high reliability.