7.3.4 FDD-TDD HARQ-ACK reporting procedure for primary cell frame structure type 2

36.2133GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Physical layer proceduresRelease 17TS

When only a positive SR is transmitted, a UE shall use PUCCH Format 1 for the SR resource as defined in Clause 5.4.1 in [3].

When only a positive SR is transmitted using slot-PUCCH, a UE shall use PUCCH Format 1 for the first SR resource configured by higher layers as defined in Clause 5.4A.2 in [3].

The FDD-TDD HARQ-ACK reporting procedure follows the HARQ-ACK procedure described in Clause 7.3.2.2 with the following exceptions:

– for a serving cell with frame structure type 1, and a UE not configured to monitor PDCCH/EPDCCH in another serving cell for scheduling the serving cell, is defined in Table 10.1.3A-1, else is defined in Table 10.1.3.1-1C if the UE is configured with higher layer parameter shortTTI for slot-PDSCH, in Table 10.1.3.1-1B if the UE is configured with higher layer parameter shortProcessingTime and the corresponding PDCCH with CRC scrambled by C-RNTI is in the UE-specific search space for subframe-PDSCH and in Table 10.1.3.1-1 otherwise.

– for a serving cell with frame structure type 1 and a UE not configured to monitor PDCCH/EPDCCH/SPDCCH in another serving cell for scheduling the serving cell, if the DL-reference UL/DL configuration of the serving cell in Table 10.1.3A-1 belongs to {2,3,4},is determined as in Clause 7.3.2.2 for a serving cell with DL-reference UL/DL configuration {5}.

– for a serving cell with frame structure type 1, and if PUCCH format 3 is configured for transmission of HARQ-ACK, and for a PUSCH transmission in a subframe/slot n performed based on a detected PDCCH/EPDCCH/SPDCCH with DCI format 0/4/7-0A/7-0B, the UE shall assume the UL-reference UL/DL configuration of the serving cell belongs to {1,2,3,4,5,6}.

– for a serving cell with frame structure type 1, and if DL-reference UL/DL configuration of each of the serving cells belongs to {0,1,2,3,4,6}, and if PUCCH format 1b with channel selection is configured for transmission of HARQ-ACK and for two configured serving cells, the UE shall assume the UL-reference UL/DL configuration of the serving cell belongs to {1,2,3,4,6}.

– for a serving cell with frame structure type 1, a value is determined by the Downlink Assignment Index (DAI) in DCI format 0/4/7-0A/7-0B corresponding to a PUSCH on the serving cell according to Table 7.3-Z in subframe/slot , where =4.

– for a serving cell with frame structure type 1, when PUCCH format 3 is configured for transmission of HARQ-ACK, if the DL-reference UL/DL configuration of the serving cell is 0, the HARQ-ACK for a PDSCH transmission with a corresponding PDCCH/EPDCCH/SPDCCH in subframe/slot is associated with if transmission mode configured in the c-th serving cell supports one transport block or spatial HARQ-ACK bundling is applied, or associated with and otherwise, where DAI(k) is the value of DAI in DCI format 1A/1B/1D/1/2/2A/2B/2C/2D detected in subframe , and are the HARQ-ACK feedback for codeword 0 and codeword 1, respectively. For the case with , the HARQ-ACK associated with a PDSCH transmission without a corresponding PDCCH/EPDCCH/SPDCCH is mapped to . The HARQ-ACK feedback bits without any detected PDSCH transmission are set to NACK.