Physical-Layer Control Signaling
To support the transmission of downlink and uplink transport channels, there is a need for certain associated control signaling. This control signaling is often referred to as L1/L2 control signaling, indicating that the corresponding information partly originates from the physical layer (Layer 1) and partly from MAC (Layer 2). In this chapter, the downlink controls signaling, including scheduling grants and assignments, will be described, followed by the uplink control signaling carrying the necessary feedback from the device.
DCI; UCI; PDCCH; PUCCH; CORESET; search space; blind decoding; CCE
To support the transmission of downlink and uplink transport channels, there is a need for certain ...