[Dive into 5G] Downlink Physical Channels - Introduction to Control Channels

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[Dive into 5G] Downlink Physical Channels - Introduction to Control Channels and Signals:

1 Purpose
This document answers the following questions:


What are the control channel differences between NR and LTE?
What is the structure of PDCCH time-frequency resources?
What information is carried on the PDCCH?
What is CORESET and why is CORESET introduced in NR?
What are search spaces and blind detection?
How does a UE obtain its DCI?