# US 12,192,015 B2 · Handling uplink transmissions for multi-TRP operation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,192,015 B2 - Document ID: US12192015B2 - Status: Granted - Kind: B2 - Application number: 17/438,661 - Filed: 2020-03-27 - Published: 2022-05-19 - Granted: 2025-01-07 - Earliest claimed: 2019-03-28 - Assignees: Apple Inc. - Applicants: Apple Inc. - Inventors: Gang Xiong; Yushu Zhang; Bishwarup Mondal; Debdeep Chatterjee; Guotong Wang - Web page: https://patentgrep.com/patent/US12192015B2 ## CPC - H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)} - H04L 1/1864: {ARQ related signaling (H04L1/1607 takes precedence)} - H04L 1/1896: {ARQ related signaling} - H04W 74/004: {in the uplink, i.e. towards network} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Systems, devices, and techniques for wireless communications are described. A described technique includes receiving, by a user equipment (UE) from one or more Transmission and Reception Points (TRPs), a physical downlink shared channel (PDSCH) transmission; determining, by the UE for a physical uplink control channel (PUCCH) carrying hybrid automatic repeat request-acknowledgement (HARQ-ACK), a TRP index in accordance with a control resource set (CORESET) scheduling the PDSCH transmission; and transmitting, by the UE via the PUCCH, HARQ-ACK information based on the receiving of the PDSCH transmission in accordance with the TRP index. ## Claims ### Claim 1 A method comprising: receiving, from one or more transmission and reception points (TRPs), a physical downlink shared channel (PDSCH) transmission, the PDSCH transmission comprising a first PDSCH transmission and a second PDSCH transmission, wherein the first PDSCH transmission is associated with a first control resource set (CORESET) scheduling the first PDSCH transmission, and wherein the second PDSCH transmission is associated with a second CORESET scheduling the second PDSCH transmission; determining, for a first hybrid automatic repeat request-acknowledgement (HARQ-ACK) associated with the first CORESET, a first TRP index value in accordance with the first CORESET scheduling the first PDSCH transmission; determining, for a second HARQ-ACK associated with the second CORESET, a second TRP index value in accordance with the second CORESET scheduling the second PDSCH transmission; determining, that the first HARQ-ACK is scheduled to be transmitted in a first a physical uplink control channel (PUCCH) transmission; determining that the first PUCCH transmission overlaps in time with a first physical uplink shared channel (PUSCH) transmission associated with the second TRP index value; determining to drop the first PUCCH transmission or the first PUSCH transmission; and transmitting the first HARQ-ACK and the second HARQ-ACK in accordance with at least one of the first TRP index value or the second TRP index value, wherein the transmitting comprises using the first TRP index value and the second TRP index value for HARQ-ACK codebook construction. ### Claim 2 (depends on 1) The method of claim 1, wherein determining the first TRP index value comprises using a default value for the first TRP index value based on the TRP first index value not being provided by a network. ### Claim 3 (depends on 1) The method of claim 1, wherein determining the first TRP index value comprises using a CORESET index parameter configured by a radio resource control (RRC) layer. ### Claim 4 (depends on 3) The method of claim 3, wherein the first TRP index value is indicated by a ConfiguredGrantConfig information element provided by the RRC layer. ### Claim 5 (depends on 1) The method of claim 1, further comprising: transmitting, on PUCCH or PUSCH, semi-persistent channel state information based on the first TRP index configured by a radio resource control (RRC) layer. ### Claim 6 (depends on 1) The method of claim 1, wherein receiving the PDSCH transmission comprises receiving transmissions from multiple TRPs. ### Claim 7 (depends on 1) The method of claim 1, wherein transmitting the first HARQ-ACK and the second HARQ-ACK in accordance with at least one of the first TRP index value or the second TRP index value comprises: determining that the first PUCCH transmission overlaps in time with a second PUSCH transmission associated with the first TRP index value; dropping the first PUCCH transmission; multiplexing the first HARQ-ACK with the second PUSCH transmission; and transmitting the second PUSCH transmission. ### Claim 8 (depends on 7) The method of claim 7, wherein transmitting the first HARQ-ACK and the second HARQ-ACK in accordance with at least one of the first TRP index value and the second TRP index value further comprises: determining that the second HARQ-ACK is scheduled to be transmitted via a second PUCCH transmission associated with the second TRP index value; determining that the second PUCCH transmission overlaps in time with the first PUSCH transmission associated with the second TRP index value; multiplexing the second HARQ-ACK with the first PUSCH transmission; and transmitting the first PUSCH transmission. ### Claim 9 (depends on 1) The method of claim 1, wherein transmitting the first HARQ-ACK and the second HARQ-ACK in accordance with at least one of the first TRP index value or the second TRP index value comprises: determining that the first HARQ-ACK is scheduled to be transmitted in a first slot of the first PUCCH transmission associated with the first TRP index value; determining that the first PUCCH transmission overlaps in time with a second PUSCH transmission associated with the first TRP index value; in response, dropping the first PUCCH transmission in the first slot; and transmitting the first HARQ-ACK in a second PUCCH transmission during a second slot. ### Claim 10 (depends on 1) The method of claim 1, wherein transmitting the first HARQ-ACK and the second HARQ-ACK in accordance with at least one of the first TRP index value or the second TRP index value comprises: determining that the first HARQ-ACK is scheduled to be transmitted in a first slot of the first PUCCH transmission associated with the first TRP index value; determining that the first PUCCH transmission overlaps in time with a second PUSCH transmission associated with the first TRP index value; in response, dropping the first and second PUSCH transmissions during the first slot; and transmitting the first HARQ-ACK in the first PUCCH transmission during the first slot. ### Claim 11 A user equipment (UE) comprising: one or more processors; circuitry to wirelessly communicate with a network; and a memory storing instructions that, when executed by the one or more processors, cause the UE to perform operations comprising: receiving, from one or more transmission and reception points (TRPs), a physical downlink shared channel (PDSCH) transmission, the PDSCH transmission comprising a first PDSCH transmission and a second PDSCH transmission, wherein the first PDSCH transmission is associated with a first control resource set (CORESET) scheduling the first PDSCH transmission, and wherein the second PDSCH transmission is associated with a second CORESET scheduling the second PDSCH transmission; determining, for a first hybrid automatic repeat request-acknowledgement (HARQ-ACK) associated with the first CORESET, a first TRP index value in accordance with the first CORESET scheduling the first PDSCH transmission, wherein determining the first TRP index value comprises using a CORESET index parameter configured in a ConfiguredGrantConfig information element provided by a radio resource control (RRC) layer; determining, for a second HARQ-ACK associated with the second CORESET, a second TRP index value in accordance with the second CORESET scheduling the second PDSCH transmission; determining, that the first HARQ-ACK is scheduled to be transmitted in a first a physical uplink control channel (PUCCH) transmission; determining that the PUCCH transmission overlaps in time with a first physical uplink shared channel (PUSCH) transmission associated with the second TRP index value; determining to drop the first PUCCH transmission or the first PUSCH transmission; and transmitting the first HARQ-ACK and the second HARQ-ACK in accordance with at least one of the first TRP index value or the second TRP index value. ### Claim 12 A method to be performed by a first access node operating in a multi-node system comprising a plurality of access nodes, the method comprising: determining a first index value for the first access node, wherein each of the plurality of access nodes is associated with a respective index value; including the first index value in a ConfiguredGrantConfig information element (IE); and transmitting, via radio resource control (RRC) signaling, the ConfiguredGrantConfig IE to a user equipment (UE) served by the access node.