pacing configuration corresponds to 2(H-HSFI) consecutive downlink, uplink, or flexible symbols for the subcarrier spacing configuration u [8]. In FDD operation mode, the SFI index field in DCI format 2_0 indicates an assortment of slot formats that include (separate) combinations of slot formats for reference downlink and uplink BWPs of the serving cell. The UE is provided via RRC signaling with the reference subcarrier spacing configurations USFI-DL or USFI-UL for the combination of slot formats indicated by the SFI index field value in DCI format 2_0 for the reference downlink and uplink BWPs of the serving cell, respectively. 4.1.3.2.3 Downlink Control Information Formats The PDCCH payload is known as DCI to which a 24-bit CRC is attached to detect transmis- sion errors and to aid the decoder in the UE receiver. Compared to LTE, the CRC size has been increased to reduce the risk of incorrectly received control information and to assist early termination of the decoding operation in the receiver. A DCI transports downlink and uplink scheduling information, requests for aperiodic channel quality indicator (CQI) reports, or uplink power control commands for one cell and one RNTI. Depending on the content and purpose of each DCI, different formats are defined. Each DCI payload is pro- cessed by information element multiplexing, CRC attachment, channel coding, and rate matching. The DCI formats defined in NR are shown in Table 4.4 along with their use cases. Similar to LTE, the UE identity modifies the CRC transmitted through a scrambling operation. When the DCI is received, the UE will calculate a scrambled CRC on the pay- load part using the same transmit-side procedure and compares it against the received CRC. If the CRC matches, the message is declared to be correctly received and intended for the UE. Therefore, the identity of the UE that is supposed to receive the DCI message is implic- itly encoded in the CRC, which reduces the number of bits necessary to transmit on the PDCCH. Note that the RNTI which is f