# US 12,192,997 B2 · System and method for UE processing time relaxation for multi-TRP transmission > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,192,997 B2 - Document ID: US12192997B2 - Status: Granted - Kind: B2 - Application number: 17/441,830 - Filed: 2020-05-01 - Published: 2022-06-16 - Granted: 2025-01-07 - Earliest claimed: 2019-05-03 - Assignees: Apple Inc. - Applicants: Apple Inc. - Inventors: Avik Sengupta; Bishwarup Mondal; Debdeep Chatterjee; Alexei Davydov - Web page: https://patentgrep.com/patent/US12192997B2 ## CPC - H04L 1/1854: {Scheduling and prioritising arrangements} - H04W 72/1273: of downlink data flows - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 1/1829: Arrangements specially adapted for the receiver end - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 72/51: based on terminal or device properties - H04B 7/024: Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems - H04B 7/0617: {for beam forming} - 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) - H04B: TRANSMISSION ## Abstract Systems, devices, and techniques for adjusting a user equipment (UE) processing time parameter in a wireless communication system that include transmission and reception points (TRPs) are described. A described technique performed by UE includes receiving a first physical downlink shared channel (PDSCH) from a first TRP corresponding to a first scheduling physical downlink control channel (PDCCH) and a second PDSCH from a second TRP corresponding to a second scheduling PDCCH. The technique further includes transmitting a first hybrid automatic repeat request acknowledgement (HARQ-ACK) message and a second HARQ-ACK message based on the first PDSCH and the second PDSCH in accordance with a first processing time parameter and a second processing time parameter, respectively. The first processing time parameter can be based on a PDSCH mapping type, a processing capability of the UE, and one or more timing characteristics of the first PDSCH and the second PDSCH. ## Claims ### Claim 1 A method comprising: receiving a first physical downlink shared channel (PDSCH) from a first transmission and reception point (TRP) corresponding to a first scheduling physical downlink control channel (PDCCH) and a second PDSCH from a second TRP corresponding to a second scheduling PDCCH, wherein the first PDSCH and the second PDSCH overlap at least partially in time in a slot; and transmitting a first hybrid automatic repeat request acknowledgement (HARQ-ACK) message in accordance with a first processing time parameter, wherein the first processing time parameter is based on a PDSCH mapping type, a processing capability of a user equipment (UE), and wherein the first processing time parameter is adjusted based on whether the first PDSCH is longer than seven symbols. ### Claim 2 (depends on 1) The method of claim 1, wherein the first PDSCH ends earlier in time than the second PDSCH in the slot, and wherein the first processing time parameter is based on a relative difference in durations of the first PDSCH and the second PDSCH. ### Claim 3 (depends on 1) The method of claim 1, wherein the first processing time parameter is based on the number of overlapping symbols of the first scheduling PDCCH and the first PDSCH. ### Claim 4 (depends on 1) The method of claim 1, wherein the first processing time parameter is based on the number of overlapping symbols of the first scheduling PDCCH and the first PDSCH, and wherein the first processing time parameter is based on the number of overlapping symbols of the second scheduling PDCCH and the second PDSCH. ### Claim 5 (depends on 4) The method of claim 4, wherein the first PDSCH and the second PDSCH are fully overlapped. ### Claim 6 (depends on 1) The method of claim 1, wherein the first processing time parameter is based on a number of symbols allocated to the first PDSCH. ### Claim 7 (depends on 1) The method of claim 1, wherein the first processing time parameter is adjusted based on whether the second PDSCH is longer than seven symbols. ### Claim 8 (depends on 1) The method of claim 1, wherein the first processing time parameter is further based on a transmission overlap corresponding to the first TRP and the second TRP. ### Claim 9 An apparatus comprising: a processor; and memory storing instructions that, when executed, cause the processor to perform operations comprising: receiving a first physical downlink shared channel (PDSCH) from a first transmission and reception point (TRP) corresponding to a first scheduling physical downlink control channel (PDCCH) and a second PDSCH from a second TRP corresponding to a second scheduling PDCCH, wherein the first PDSCH and the second PDSCH overlap at least partially in time in a slot; and causing transmission of a first hybrid automatic repeat request acknowledgement (HARQ-ACK) message in accordance with a first processing time parameter; wherein the first processing time parameter is based on a PDSCH mapping type and a processing capability of—a user equipment (UE), and wherein the first processing time parameter is adjusted based on whether the first PDSCH is longer than seven symbols. ### Claim 10 (depends on 9) The apparatus of claim 9, wherein the first PDSCH ends earlier in time than the second PDSCH in the slot, and wherein the first processing time parameter is based on a relative difference in durations of the first PDSCH and the second PDSCH. ### Claim 11 (depends on 9) The apparatus of claim 9, wherein the first processing time parameter is based on the number of overlapping symbols of the first scheduling PDCCH and the first PDSCH. ### Claim 12 (depends on 9) The apparatus of claim 9, wherein the first processing time parameter is based on the number of overlapping symbols of the first scheduling PDCCH and the first PDSCH, and wherein the first processing time parameter is based on the number of overlapping symbols of the second scheduling PDCCH and the second PDSCH. ### Claim 13 (depends on 12) The apparatus of claim 12, wherein the first PDSCH and the second PDSCH are fully overlapped. ### Claim 14 (depends on 9) The apparatus of claim 9, wherein the first processing time parameter is based on a number of symbols allocated to the first PDSCH. ### Claim 15 (depends on 9) The apparatus of claim 9, wherein the first processing time parameter is adjusted based on whether the second PDSCH is longer than seven symbols. ### Claim 16 A system comprising: a first base station comprising a first transmission and reception point (TRP); and a second base station comprising a second TRP, wherein the first and second base stations are configured to transmit, in a slot to a user equipment (UE), a first scheduling physical downlink control channel (PDCCH) and a second scheduling PDCCH, wherein the first and second base stations are configured to transmit, in the slot to the UE, a first physical downlink shared channel (PDSCH) from the first TRP corresponding to the first scheduling PDCCH and a second PDSCH from the second TRP corresponding to the second scheduling PDCCH, wherein the first PDSCH and the second PDSCH overlap at least partially in time, wherein the first and second base stations are configured to receive, from the UE, a first hybrid automatic repeat request acknowledgement (HARQ-ACK) message in accordance with a first processing time parameter, and wherein the first processing time parameter is based on a PDSCH mapping type and a processing capability of the UE, and wherein the first processing time parameter is adjusted based on whether the first PDSCH is longer than seven symbols. ### Claim 17 (depends on 16) The system of claim 16, wherein the first PDSCH ends earlier in time than the second PDSCH in the slot, and wherein the first processing time parameter is based on a relative difference in durations of the first PDSCH and the second PDSCH. ### Claim 18 (depends on 16) The system of claim 16, wherein the first processing time parameter is based on the number of overlapping symbols of the first scheduling PDCCH and the first PDSCH. ### Claim 19 (depends on 16) The system of claim 16, wherein the first processing time parameter is based on the number of overlapping symbols of the first scheduling PDCCH and the first PDSCH, and wherein the first processing time parameter is based on the number of overlapping symbols of the second scheduling PDCCH and the second PDSCH. ### Claim 20 (depends on 19) The system of claim 19, wherein the first PDSCH and the second PDSCH are fully overlapped. ### Claim 21 (depends on 16) The system of claim 16, wherein the first processing time parameter is based on a number of symbols allocated to the first PDSCH.