# US 11,910,398 B2 · Hybrid automatic repeat request (HARQ) based on codeblock groups in new radio systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,398 B2 - Document ID: US11910398B2 - Status: Granted - Kind: B2 - Application number: 17/903,457 - Filed: 2022-09-06 - Published: 2023-01-05 - Granted: 2024-02-20 - Earliest claimed: 2017-09-11 - Assignees: Apple Inc. - Applicants: Apple Inc. - Inventors: Hong He; Debdeep Chatterjee; Gang Xiong; Hwan-Joon Kwon; Sergey Sosnin; Yongjun Kwak - Web page: https://patentgrep.com/patent/US11910398B2 ## CPC - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 1/1887: {Scheduling and prioritising arrangements} - H04L 1/1896: {ARQ related signaling} - H04W 72/044: based on the type of the allocated resource - H04W 72/12: Wireless traffic scheduling - H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Embodiments of a User Equipment (UE), Generation Node-B (gNB) and methods of communication are disclosed herein. The UE may receive a physical downlink control channel (PDCCH) that schedules a physical downlink shared channel (PDSCH) in a slot, and on a component carrier (CC) of a plurality of CCs. The PDCCH may include a total downlink assignment index (DAI) and a counter DAI for hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback of the PDSCH. The total DAI may indicate a total number of pairs of CCs and slots for the HARQ-ACK feedback. The UE may encode the HARQ-ACK feedback to include a bit that indicates whether the PDSCH is successfully decoded. A size of the HARQ-ACK feedback may be based on the total DAI, and a position of the bit may be based on the counter DAI. ## Claims ### Claim 1 A method, comprising: receiving a physical downlink control channel (PDCCH) that schedules a physical downlink shared channel (PDSCH) in a slot of a plurality of slots, the PDSCH further scheduled on a current component carrier (CC) of a plurality of CCs, wherein the plurality of CCs comprises different sub-carrier spacings, wherein the PDCCH comprises a downlink control information (DCI) that comprises: a total downlink assignment index (DAI) for hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback, wherein the total DAI is updated from scheduling instance to scheduling instance, and the total DAI indicates a number of scheduling instances up to a current scheduling instance in which PDSCH transmission(s) associated with PDCCH or PDCCH indicating that a downlink (DL) semi-persistent scheduling (SPS) release is present; and a counter DAI based on an accumulative number of scheduling instances up to the current scheduling instance in which PDSCH transmission(s) associated with PDCCH or PDCCH indicating that a DL SPS release is present; and transmitting the HARQ-ACK feedback, wherein the HARQ-ACK feedback is formed in accordance with the total DAI and the counter DAI. ### Claim 2 (depends on 1) The method of claim 1, wherein a first CC of the plurality of CCs has additional scheduling instances in comparison to a second CC of the plurality of CCs. ### Claim 3 (depends on 1) The method of claim 1, wherein the HARQ-ACK feedback includes per transport block (TB) HARQ-ACK information and per code block group (CBG) HARQ-ACK information. ### Claim 4 (depends on 3) The method of claim 3, wherein the per TB HARQ-ACK information is included in a per TB sub-codebook and the per CBG HARQ-ACK information is included in a per CBG sub-codebook. ### Claim 5 (depends on 4) The method of claim 4, wherein the HARQ-ACK feedback includes a concatenation of the per TB sub-codebook and per CBG sub-codebook. ### Claim 6 (depends on 5) The method of claim 5, wherein separate counter DAIs and total DAIs apply to each of the per TB sub-codebook and per CBG sub-codebook. ### Claim 7 (depends on 1) The method of claim 1, wherein separate counter DAIs and total DAIs apply to each HARQ-ACK sub-codebook. ### Claim 8 An apparatus, comprising: a processor configured to cause a user equipment device (UE) to: receive a physical downlink control channel (PDCCH) that schedules a physical downlink shared channel (PDSCH) in a slot of a plurality of slots, the PDSCH further scheduled on a current component carrier (CC) of a plurality of CCs, wherein the plurality of CCs comprises different sub-carrier spacings, wherein the PDCCH comprises a downlink control information (DCI) that comprises: a total downlink assignment index (DAI) for hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback, wherein the total DAI is updated from scheduling instance to scheduling instance, and the total DAI indicates a number of scheduling instances up to a current scheduling instance in which PDSCH transmission(s) associated with PDCCH or PDCCH indicating that a downlink (DL) semi-persistent scheduling (SPS) release is present; and a counter DAI based on an accumulative number of scheduling instances up to the current scheduling instance in which PDSCH transmission(s) associated with PDCCH or PDCCH indicating that a DL SPS release is present; and transmit the HARQ-ACK feedback, wherein the HARQ-ACK feedback is formed in accordance with the total DAI and the counter DAI. ### Claim 9 (depends on 8) The apparatus of claim 8, wherein a first CC of the plurality of CCs has additional scheduling instances in comparison to a second CC of the plurality of CCs. ### Claim 10 (depends on 8) The apparatus of claim 8, wherein the HARQ-ACK feedback includes per transport block (TB) HARQ-ACK information and per code block group (CBG) HARQ-ACK information. ### Claim 11 (depends on 10) The apparatus of claim 10, wherein the per TB HARQ-ACK information is included in a per TB sub-codebook and the per CBG HARQ-ACK information is included in a per CBG sub-codebook. ### Claim 12 (depends on 11) The apparatus of claim 11, wherein the HARQ-ACK feedback includes a concatenation of the per TB sub-codebook and per CBG sub-codebook. ### Claim 13 (depends on 12) The apparatus of claim 12, wherein separate counter DAIs and total DAIs apply to each of the per TB sub-codebook and per CBG sub-codebook. ### Claim 14 (depends on 8) The apparatus of claim 8, wherein separate counter DAIs and total DAIs apply to each HARQ-ACK sub-codebook. ### Claim 15 (depends on 8) The apparatus of claim 8, further comprising a radio operably coupled to the processor. ### Claim 16 A method, comprising: transmitting, to a user equipment (UE), a physical downlink control channel (PDCCH) that schedules a physical downlink shared channel (PDSCH) in a slot of a plurality of slots, the PDSCH further scheduled on a current component carrier (CC) of a plurality of CCs, wherein the plurality of CCs comprises different sub-carrier spacings, wherein the PDCCH comprises a downlink control information (DCI) that comprises: a total downlink assignment index (DAI) for hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback, wherein the total DAI is updated from scheduling instance to scheduling instance, and the total DAI indicates a number of scheduling instances up to a current scheduling instance in which PDSCH transmission(s) associated with PDCCH or PDCCH indicating that a downlink (DL) semi-persistent scheduling (SPS) release is present; and a counter DAI based on an accumulative number of scheduling instances up to the current scheduling instance in which PDSCH transmission(s) associated with PDCCH or PDCCH indicating that a DL SPS release is present; and receiving, from the UE, the HARQ-ACK feedback, wherein the HARQ-ACK feedback is formed in accordance with the total DAI and the counter DAI. ### Claim 17 (depends on 16) The method of claim 16, wherein a first CC of the plurality of CCs has additional scheduling instances in comparison to a second CC of the plurality of CCs. ### Claim 18 (depends on 16) The method of claim 16, wherein the HARQ-ACK feedback includes per transport block (TB) HARQ-ACK information and per code block group (CBG) HARQ-ACK information. ### Claim 19 (depends on 18) The method of claim 18, wherein the per TB HARQ-ACK information is included in a per TB sub-codebook and the per CBG HARQ-ACK information is included in a per CBG sub-codebook. ### Claim 20 (depends on 19) The method of claim 19, wherein the HARQ-ACK feedback includes a concatenation of the per TB sub-codebook and per CBG sub-codebook.