live_energy
2022-01-11, 03:54 PM
[Dive into 5G] 5G Multi-Antenna Physical Layer Procedures:
1 Purpose
This document answers the following questions:
What is modulation?
What is layer mapping? What are the characteristics of data streams generated after layer mapping?
What is the rank of a channel matrix? What does the rank means?
What is antenna port mapping?
What are the relationships between precoding, digital beamforming, and multiplexing?
How are weights determined in digital beamforming?
1 Purpose
This document answers the following questions:
What is modulation?
What is layer mapping? What are the characteristics of data streams generated after layer mapping?
What is the rank of a channel matrix? What does the rank means?
What is antenna port mapping?
What are the relationships between precoding, digital beamforming, and multiplexing?
How are weights determined in digital beamforming?