TERMINAL DEVICE, BASE STATION DEVICE AND COMMUNICATION METHOD Russian patent published in 2023 - IPC H04W72/04 H04W72/12 

FIELD: terminal devices.

SUBSTANCE: invention relates to a terminal device, a base station device and a communication method. The terminal device comprises a receiver configured to track PDCCH with a DCI format in an active downlink BWP in a serving cell in a Secondary Cell Group (SCG) and a transmitter configured to transmit a HARQ-ACK on the PUCCH. The DCI format is used for PDSCH scheduling and PDSCH reception in the downlink BWP. The N_RIV value of the frequency domain resource allocation field included in the DCI format is N^size_BWP * (L_RBs - 1) + RB_start in case L_RBs - 1 is less than or equal to floor(N^size_BWP/2), the value is N_RIV is equal to N^size_BWP * (N^size_BWP - L_RBs + 1) + (N^size_BWP - 1 - RB_start) if L_RBs - 1 is greater than floor(N^size_BWP/2), where floor(N^size_BWP/2) is the largest integer in the range not exceeding N^size_BWP/2, RB_start is the start resource block for PDSCH allocation, L_RBs is the number of resource blocks allocated to the PDSCH, and N^size_BWP is set based on the number of resource blocks in the initial downlink BWP configured with the first parameter if the DCI format is detected in the common search space.

EFFECT: efficient data exchange.

4 cl, 6 dwg