7.3.3 FDD-TDD HARQ-ACK reporting procedure for primary cell frame structure type 1

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

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

For FDD-TDD and the primary cell is frame structure type 1, with PUCCH format 1b with channel selection,

– for a negative SR transmission,

– UE shall transmit the HARQ-ACK on its assigned HARQ-ACK PUCCH resource with channel selection as defined in Clause 10.1.2A.

– for a positive SR transmission,

– if one transport block or two transport blocks or a PDCCH/EPDCCH indicating downlink SPS release is detected on the primary cell in subframe , and if subframe j is an uplink or a special subframe of configurations 0, 5 and 10 if configured by ssp10-CRS-LessDwPTS with normal downlink CP or of configurations 0 and 4 with extended downlink CP for the secondary cell according to the higher layer parameter subframeAssignment for UE not configured with either higher layer parameter EIMTA-MainConfigServCell-r12 or harq-ReferenceConfig-r14 and according to the higher layer parameter eimta-HARQ-ReferenceConfig-r12 for UE configured with the higher layer parameter EIMTA-MainConfigServCell-r12, and to harq-ReferenceConfig-r14 for the primary cell when the UE is configured with the parameter harq-ReferenceConfig-r14

– UE shall transmit the HARQ-ACK and SR as for FDD with PUCCH format 1a/1b as described in Clause 7.3.1.

– otherwise

– UE shall transmit the HARQ-ACK and SR as for FDD with PUCCH format 1b with channel selection as described in Clause 7.3.1.

where the value of j is

– i-1 if UE is configured with higher layer parameter shortProcessingTime for primary cell and the corresponding PDCCH with CRC scrambled by C-RNTI is in the UE-specific search space on primary cell, and UE is not configured with higher layer parameter shortProcessingTime for secondary cell,

– i+1 if UE is configured with higher layer parameter shortProcessingTime for both primary and secondary cells except when the corresponding PDCCH with CRC scrambled by C-RNTI is in the UE-specific search space on primary cell,

– i, otherwise.

For FDD-TDD and the primary cell is frame structure type 1, when PUCCH format 3/4/5 is configured for transmission of HARQ-ACK,

– for special subframe configurations 0, 5 and 10 if configured by ssp10-CRS-LessDwPTS with normal downlink CP or configurations 0 and 4 with extended downlink CP in a serving cell, shown in table 4.2-1 [3], the special subframe of the serving cell is excluded from the HARQ-ACK codebook size determination.

– for special subframe configurations 1, 2, 6, and 7 and slot-PDSCH, the second slot of DwPTS of the serving cell is excluded from the HARQ-ACK codebook size determination.

For FDD-TDD and the primary cell is frame structure type 1, when a PUCCH format 3/4/5 transmission of HARQ-ACK coincides with a subframe/slot/subslot configured to the UE by higher layers for transmission of a scheduling request, the UE shall multiplex HARQ-ACK and SR bits on HARQ-ACK PUCCH resource as defined in Clause 5.2.3.1 in [4], unless the HARQ-ACK corresponds to a subframe-PDSCH transmission on the primary cell only or a PDCCH/EPDCCH indicating downlink SPS release on the primary cell only, in which case the SR shall be transmitted as for FDD with PUCCH format 1a/1b as described in Clause 7.3.1.

For FDD-TDD and for a PUSCH transmission, a UE shall not transmit HARQ-ACK on PUSCH in subframe/slot/subslot n if the UE does not receive PDSCH or PDCCH indicating downlink SPS release in

– subframe n- for subframe-PDSCH or in subframe for PDCCH indicating downlink SPS release,

– slot for slot-PDSCH,

– subslot for subslot- PDSCH if the higher layer parameter ul-TTI-Length is set to ‘subslot’,

– any of the subslot numbers listed in Table 10.1-1 if the higher layer parameter ul-TTI-Length is set to ‘slot’ and slot-PUSCH is transmitted in subframe m.

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/subslot-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].

If a UE is configured with higher layer parameter codebooksizeDetermination-r13 = dai or with higher layer parameter codebooksizeDeterminationsSTTI-r15 = dai, the FDD-TDD HARQ-ACK reporting procedure follows the HARQ-ACK procedure described in Clause 7.3.1 for a UE configured with higher layer parameter codebooksizeDetermination-r13 = dai or with higher layer parameter codebooksizeDeterminationsSTTI-r15 = dai.

If a UE is configured with higher layer parameter codebooksizeDetermination-r13 = cc or with higher layer parameter codebooksizeDeterminationsSTTI-r15 = cc, the FDD-TDD HARQ-ACK reporting procedure follows the HARQ-ACK procedure described in Clause 7.3.1 for a UE configured with higher layer parameter codebooksizeDetermination-r13 = cc or with higher layer parameter codebooksizeDeterminationsSTTI-r15 = cc.