# US 12,113,623 B2 · HARQ feedback when a user equipment is scheduled as part of a group > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,623 B2 - Document ID: US12113623B2 - Status: Granted - Kind: B2 - Application number: 17/593,411 - Filed: 2020-08-05 - Published: 2022-09-22 - Granted: 2024-10-08 - Earliest claimed: 2020-08-05 - Assignees: Apple Inc. - Applicants: Apple Inc. - Inventors: Haitong Sun; Chunhai Yao; Chunxuan Ye; Dawei Zhang; Hong He; Jie Cui; Oghenekome Oteri; Sigen Ye; Wei Zeng; Weidong Yang; Yang Tang; Yushu Zhang - Web page: https://patentgrep.com/patent/US12113623B2 ## CPC - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 1/1864: {ARQ related signaling (H04L1/1607 takes precedence)} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - 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 A user equipment (UE) may transmit hybrid automatic repeat request (HARQ) feedback when part of a group of UEs. The UE receives a radio network temporary identifier (RNTI) associated with a group of UEs that includes the UE. The UE monitors for a signal from one of a cell on which the UE is currently camped or a cell to which the UE is currently connected that is scrambled by the RNTI and includes control information. The UE transmits HARQ feedback to the one of the currently camped cell or currently connected cell, the HARQ feedback associated with the signal and, when the signal is received, performs an operation in response to the control information. ## Claims ### Claim 1 A method, comprising: at a user equipment (UE): receiving a radio network temporary identifier (RNTI) associated with a group of UEs, the group of UEs including the UE; processing a signal from one of a cell on which the UE is currently camped or a cell to which the UE is currently connected, wherein the signal is scrambled by the RNTI and includes control information; processing a radio resource control (RRC) signal from the currently camped or currently connected cell, wherein the RRC signal comprises an indication of at least one of the group of UEs configured to transmit a hybrid automatic repeat request (HARQ) feedback for group-based scheduling; transmitting HARQ feedback to the one of the currently camped cell or currently connected cell, the HARQ feedback associated with the signal; and performing an operation in response to the control information included in the signal after being descrambled by the RNTI. ### Claim 2 (depends on 1) The method of claim 1, wherein the signal corresponds to one of: i) configured grant physical uplink shared channel (PUSCH) activation, ii) configured grant PUSCH deactivation, iii) semi-persistent-scheduled physical downlink shared channel (SPS-PDSCH) activation and iv) SPS-PDSCH deactivation. ### Claim 3 (depends on 1) The method of claim 1, wherein the UE is configured to transmit HARQ feedback for group-based scheduling based on the RRC signal. ### Claim 4 (depends on 1) The method of claim 1, wherein performing the operation includes receiving a medium access control (MAC) control element (CE) and wherein the HARQ feedback indicates reception of the MAC CE by the UE. ### Claim 5 (depends on 1) The method of claim 1, further comprising: determining that the HARQ feedback is to be transmitted based on identifying a predetermined condition associated with at least one of i) downlink measurement data corresponding to the currently connected cell, ii) a distance relative to the currently connected cell and iii) a priority order. ### Claim 6 (depends on 1) The method of claim 1, wherein the RNTI is a Slot Format Indication RNTI (SFI-RNTI). ### Claim 7 (depends on 1) The method of claim 1, wherein signal is also scrambled by a configured scheduling RNTI (CS-RNTI). ### Claim 8 (depends on 7) The method of claim 7, further comprising: decoding the signal using the RNTI and the CS-RNTI. ### Claim 9 A user equipment (UE), comprising: a processor configured to perform operations comprising: receiving a radio network temporary identifier (RNTI) associated with a group of UEs, the group of UEs including the UE; processing a signal from one of a cell on which the UE is currently camped or a cell to which the UE is currently connected, wherein the signal is scrambled by the RNTI, and includes control information; processing a radio resource control (RRC) signal from the currently camped or currently connected cell, wherein the RRC signal comprises an indication of at least one of the group of UEs configured to transmit a hybrid automatic repeat request (HARQ) feedback for group-based scheduling; transmitting HARQ feedback to the currently camped cell or the currently connected cell, the HARQ feedback associated with the signal; and performing an operation in response to the control information included in the signal; and a transceiver communicatively connected to the processor. ### Claim 10 (depends on 9) The UE of claim 9, wherein the signal corresponds to one of: i) configured grant physical uplink shared channel (PUSCH) activation, ii) configured grant PUSCH deactivation, iii) semi-persistent-scheduled physical downlink shared channel (SPS-PDSCH) activation and iv) SPS-PDSCH deactivation. ### Claim 11 (depends on 9) The UE of claim 9, wherein the UE is configured to transmit HARQ feedback for group-based scheduling based on the RRC signal received from the currently connected cell. ### Claim 12 (depends on 9) The UE of claim 9, further comprising: determining that the HARQ feedback is to be transmitted based on identifying a predetermined condition associated with at least one of i) downlink measurement data corresponding to the currently connected cell, ii) a distance relative to the currently connected cell and iii) a priority order. ### Claim 13 (depends on 9) The UE of claim 9, wherein signal is also scrambled by a configured scheduling RNTI (CS-RNTI). ### Claim 14 (depends on 13) The UE of claim 13, further comprising: decoding the signal using the RNTI and the CS-RNTI. ### Claim 15 A baseband processor configured to: process a radio network temporary identifier (RNTI) associated with a group of user equipments (UEs), the group of UEs including an identified UE; process a signal from one of a cell on which the identified UE is currently camped or a cell to which the UE is currently connected, wherein the signal is scrambled by the RNTI and includes control information; process a radio resource control (RRC) signal from the currently camped or currently connected cell, wherein the RRC signal comprises an indication of at least one of the group of UEs configured to transmit a hybrid automatic repeat request (HARQ) feedback for group-based scheduling; generate, for transmission to the currently camped cell or the currently connected cell, HARQ feedback in response to the RRC signal; and perform an operation in response to the control information when the signal is received. ### Claim 16 (depends on 15) The baseband processor of claim 15, wherein the signal corresponds to one of: i) configured grant physical uplink shared channel (PUSCH) activation, ii) configured grant PUSCH deactivation, iii) semi-persistent-scheduled physical downlink shared channel (SPS-PDSCH) activation and iv) SPS-PDSCH deactivation. ### Claim 17 (depends on 15) The baseband processor of claim 15, wherein the identified UE is configured to transmit HARQ feedback for group-based scheduling based on the RRC signal received from the currently connected cell.