Question: How does a Relay Node (RN) in an E-UTRA system typically receive Downlink Control Information (DCI), and which DCI format is it not expecting?
Option 1: Via PDCCH, and it does not expect DCI format 1/1A.
Option 2: Via R-PDCCH, and it does not expect DCI format 3/3A.
Option 3: Directly from the eNodeB without using PDCCH/R-PDCCH, and it doesn't expect DCI format 2/2A.
Option 4: Through a dedicated Physical Downlink Shared Channel (PDSCH), and it's not designed to handle DCI formats for UEs.
Explanation: In E-UTRA relaying operation, Relay Nodes receive DCI via R-PDCCH, a modification of the standard PDCCH. Additionally, RNs shall not expect DCI format 3/3A, distinguishing their operation from typical User Equipment procedures, ensuring efficient eNodeB-RN communication for effective signal relaying.