ansmissions are configured, that is, CBGTI and CBGFI fields. The CBGTI is a bitmap indicating whether a certain CBG is present in the downlink transmission. The CBGFI is a single bit field, indicating whether the CBGs identified by CBGTI should be flushed or whether soft combining should be performed. The decoding operation results in either a positive acknowledgment in the case of a successful decoding or a negative acknowledgment in the case of unsuccessful decoding, and it is fed back to the gNB as part of the uplink control information. If CBG- based retransmissions are configured, a bitmap with one bit per CBG is fed back instead of a single bit representing the entire TB. The uplink uses the same asynchronous HARQ pro- tocol as the downlink. The necessary HARQ-related information including process number, new-data indicator, and CBGTI (when configured) are included in the scheduling grant [9]. CBG-based retransmissions are transparent to the MAC sublayer and are handled in the physical layer despite being part of the HARQ mechanism. From the MAC perspective, the TB is not correctly received until all CBGs are correctly received and decoded. It is not pos- sible to combine transmission of new CBGs associated with another TB with retransmis- sions of CBGs belonging to the incorrectly received TB in the same HARQ process [14]. The bit sequence fo,f1, fe-1 is generated by interleaving bit sequence CO,C1,...,EE-1 according to the value of the modulation order Qm as follows Aj=0,1,... E/Qm 1;i=0,1, Qm - 1 [7]. The new radio supports up to two code- words in the downlink transmission. For each codeword cw, the block of bits b(cw)(N(cw) where N(cw) denotes the number of bits in codeword CW transmitted on the physical shared channel, is scrambled prior to modulation, resulting in a block scrambled (N(cw) such 6(cm) (i) = +c(c))(i) mod 2. The scrambling sequence a generic pseudo- random length-31 Gold sequence that is initialized by setting Cinit nRNTI215 cw214. where NIDE {0, 1, 1023}, if configured through RRC sign