Question: What is the primary function of the Physical Downlink Control Channel (PDCCH) in a 5G network?
Option 1: To transmit user data on the downlink.
Option 2: To schedule DL transmissions on PDSCH and UL transmissions on PUSCH, and to provide control information for various radio resource management functions.
Option 3: To perform handovers between different base stations.
Option 4: To manage the power control of the User Equipment (UE).
Explanation: The primary function of PDCCH is to schedule DL transmissions on PDSCH and UL transmissions on PUSCH, and to provide control information for various radio resource management functions such as hybrid-ARQ, modulation and coding format, resource allocation, and others. This is essential for efficient use of radio resources and to ensure reliable communication between the base station and the UE.