# US 12,193,006 B2 · Method and apparatus for enhanced semi-persistent scheduling configuration > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,193,006 B2 - Document ID: US12193006B2 - Status: Granted - Kind: B2 - Application number: 16/939,905 - Filed: 2020-07-27 - Published: 2021-02-04 - Granted: 2025-01-07 - Earliest claimed: 2019-07-31 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Yongxia Lyu; Liqing Zhang; Jianglei Ma - Inventors: Yongxia Lyu; Liqing Zhang; Jianglei Ma - Web page: https://patentgrep.com/patent/US12193006B2 ## CPC - H04L 1/1854: {Scheduling and prioritising arrangements} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)} - 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 - H04W 72/54: based on quality criteria - 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 and methods for configuring semi-persistent scheduling (SPS) transmission are disclosed. An example method performed by a wireless device includes: transmitting, to a user equipment, a radio resource control (RRC) signal comprising a time and frequency configuration for semi-persistent scheduling (SPS); and transmitting, to the user equipment, an information block via a physical downlink shared channel (PDSCH) configured based on the time and frequency configuration for SPS, the information block comprising signaling indicating at least one of: a modulation and coding scheme (MCS) for a subsequent transmission, a transmit power control command (TPC) for physical uplink control channel (PUCCH), PDSCH-to-HARQ feedback timing indicator, and PUCCH resource indicator. ## Claims ### Claim 1 A method performed by a wireless device, the method comprising: transmitting, to a user equipment, a radio resource control (RRC) signal specifying a time and frequency configuration for semi-persistent scheduling (SPS); and transmitting, to the user equipment, an information block via a physical downlink shared channel (PDSCH), wherein the information block is transmitted to the user equipment directly without and independent of downlink control information (DCI), the information block configured based on the time and frequency configuration for SPS specified by the RRC signal, the information block specifying signaling parameters comprising a modulation and coding scheme (MCS) table parameter specifying a MCS table and a downlink power offset for use in a subsequent transmission and hybrid automatic repeat request (HARQ) ACK/NACK feedback; wherein: the signaling parameters are contained in a specific time and frequency resource portion of a time and frequency region of the information block, the specific time and frequency resource portion being dependent on the RRC signal; wherein the signaling parameters are contained in a media access control (MAC) sub-header of the information block; wherein the MAC sub-header includes a subfield for a downlink assignment index (DAI); wherein the RRC signal supports a dynamic HARQ-ACK codebook for SPS transmission in a Time Division Duplex (TDD) modulation scheme; wherein the RRC signal configures a HARQ-ACK feedback timing; wherein the DAI of MAC sub-header comprises a number of bits specifying a number of HARQ bits required for HARQ feedback indicated by the DAI and the remaining bits are used for data transmission. ### Claim 2 (depends on 1) The method of claim 1, further comprising receiving a subsequent transmission configured based on the signaling parameters sent in the information block. ### Claim 3 (depends on 1) The method of claim 1, further comprising sending a subsequent transmission configured based on the signaling parameters sent in the information block. ### Claim 4 (depends on 1) The method of claim 1, wherein the information block further comprises at least one of the following signaling parameters: frequency resource assignment, time domain resource assignment, virtual resource block (VRB)-to-physical resource block (PRB) mapping, PRB bundling size indicator, rate matching indictor, redundancy version, zero power (ZP) channel state information (CSI)-reference signals (RS) trigger to trigger aperiodic ZP CSI-RS, downlink assignment index, Service Request System (SRS) request, code block group (CBG) transmission information (CBGTI), CBG flushing out information (CBGFI), antenna ports, DeModulation Reference Signal (DMRS) sequence initialization, number of repetitions, periodicity, new-Radio Network Temporary Identifier (RNTI), periodicity, time-domain Offset, and nrofHARQ-Processes. ### Claim 5 (depends on 1) The method of claim 1, wherein the MAC sub-header includes a subfield for physical uplink control channel (PUCCH), the PUCCH subfield including an index indicating a HARQ-ACK feedback. ### Claim 6 (depends on 1) The method of claim 1, wherein the MAC sub-header includes a subfield for physical downlink shared channel (PDSCH), the PDSCH subfield including a PDSCH-to-HARQ_feedback timing indicator. ### Claim 7 (depends on 6) The method of claim 6, wherein the PDSCH-to-HARQ_feedback timing indicator has a bit width determined based on a total number of entries in a parameter dl-DataToUL-ACK contained in the RRC signal. ### Claim 8 (depends on 1) The method of claim 1, wherein the DAI has a bit width of 2 or 4 bits. ### Claim 9 (depends on 1) The method of claim 1, wherein the TPC command for scheduled PUCCH has a bit width of 2 bits. ### Claim 10 (depends on 4) The method of claim 4, wherein the ZP CSI-RS trigger to trigger aperiodic ZP CSI-RS has a bit width of 2 bits. ### Claim 11 (depends on 4) The method of claim 4, wherein the SRS request has a bit width of 2 bits. ### Claim 12 (depends on 1) The method of claim 1, further comprising receiving a corresponding MAC control element (CE) confirmation. ### Claim 13 (depends on 1) The method of claim 1, wherein the information block further specifies one or more following signaling parameters: a transmit power control command (TPC) for physical uplink control channel (PUCCH), PDSCH-to-HARQ feedback timing indicator, and PUCCH resource indicator. ### Claim 14 An electronic device comprising: a transceiver for sending or receiving a wireless transmission; and a processing unit coupled to the transceiver, the processing unit being configured to execute instructions to: transmit, to a user equipment, a radio resource control (RRC) signal specifying a time and frequency configuration for semi-persistent scheduling (SPS); and transmit, to the user equipment, an information block via a physical downlink shared channel (PDSCH), wherein the information block is transmitted to the user equipment directly without and independent of downlink control information (DCI), the information block configured based on the time and frequency configuration for SPS specified by the RRC signal, the information block specifying signaling parameters comprising a modulation and coding scheme (MCS) table parameter specifying a MCS table and a downlink power offset for use in a subsequent transmission and hybrid automatic repeat request (HARQ) ACK/NACK feedback; wherein: the signaling parameters are contained in a specific time and frequency resource portion of a time and frequency region of the information block, the specific time and frequency resource portion being dependent on the RRC signal; wherein the signaling parameters are contained in a media access control (MAC) sub-header of the information block; wherein the MAC sub-header includes a subfield for a downlink assignment index (DAI); wherein the RRC signal supports a dynamic HARQ-ACK codebook for SPS transmission in a Time Division Duplex (TDD) modulation scheme; wherein the RRC signal configures a HARQ-ACK feedback timing; wherein the DAI of MAC sub-header comprises a number of bits specifying a number of HARQ bits required for HARQ feedback indicated by the DAI and the remaining bits are used for data transmission. ### Claim 15 (depends on 14) The electronic device of claim 14, wherein the processing unit is further configured to receive a subsequent uplink transmission configured based on the signaling parameters sent in the information block. ### Claim 16 (depends on 14) The electronic device of claim 14, wherein the processing unit is further configured to send a subsequent downlink transmission configured based on the signaling parameters sent in the information block. ### Claim 17 (depends on 14) The electronic device of claim 14, wherein the information block further comprises at least one of the following signaling parameters: frequency resource assignment, time domain resource assignment, virtual resource block (VRB)-to-physical resource block (PRB) mapping, PRB bundling size indicator, rate matching indictor, redundancy version, zero power (ZP) channel state information (CSI)-reference signals (RS) trigger to trigger aperiodic ZP CSI-RS, downlink assignment index, Service Request System (SRS) request, code block group (CBG) transmission information (CBGTI), CBG flushing out information (CBGFI), antenna ports, DeModulation Reference Signal (DMRS) sequence initialization, number of repetitions, periodicity, new-Radio Network Temporary Identifier (RNTI), periodicity, time-domain Offset, and nrofHARQ-Processes. ### Claim 18 (depends on 14) The electronic device of claim 14, wherein the MAC sub-header includes a subfield for physical uplink control channel (PUCCH), the PUCCH subfield including an index indicating a HARQ-ACK feedback. ### Claim 19 (depends on 14) The electronic device of claim 14, wherein the MAC sub-header includes a subfield for physical downlink shared channel (PDSCH), the PDSCH subfield including a PDSCH-to-HARQ_feedback timing indicator. ### Claim 20 (depends on 19) The electronic device of claim 19, wherein the PDSCH-to-HARQ_feedback timing indicator has a bit width determined based on a total number of entries in a parameter dl-DataToUL-ACK contained in the RRC signal. ### Claim 21 (depends on 14) The electronic device of claim 14, wherein the DAI has a bit width of 2 or 4 bits. ### Claim 22 (depends on 14) The electronic device of claim 14, wherein the TPC command for scheduled PUCCH has a bit width of 2 bits. ### Claim 23 A non-transitory machine readable storage medium comprising a plurality of instructions adapted to be executed to implement a method for semi-persistent scheduling (SPS) configuration, the method comprising: transmitting, to a user equipment, a radio resource control (RRC) signal specifying a time and frequency configuration for semi-persistent scheduling (SPS); and transmitting, to the user equipment, an information block via a physical downlink shared channel (PDSCH), wherein the information block is transmitted to the user equipment directly without and independent of downlink control information (DCI), the information block configured based on the time and frequency configuration for SPS specified by the RRC signal, the information block specifying signaling parameters comprising a modulation and coding scheme (MCS) table parameter specifying a MCS table and a downlink power offset for use in a subsequent transmission and hybrid automatic repeat request (HARQ) ACK/NACK feedback; wherein; the signaling parameters are contained in a specific time and frequency resource portion of a time and frequency region of the information block, the specific time and frequency resource portion being dependent on the RRC signal; wherein the signaling parameters are contained in a media access control (MAC) sub-header of the information block; wherein the MAC sub-header includes a subfield for a downlink assignment index (DAI); wherein the RRC signal supports a dynamic HARQ-ACK codebook for SPS transmission in a Time Division Duplex (TDD) modulation scheme; wherein the RRC signal configures a HARQ-ACK feedback timing; wherein the DAI of MAC sub-header comprises a number of bits specifying a number of HARQ bits required for HARQ feedback indicated by the DAI and the remaining bits are used for data transmission.