# US 2022/0046589 A1 · Semi persistent scheduling physical downlink shared channels for new radio multicast > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0046589 A1 - Document ID: US20220046589A1 - Status: Published application - Kind: A1 - Application number: 17/443,295 - Filed: 2021-07-23 - Published: 2022-02-10 - Earliest claimed: 2020-08-06 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Kazuki TAKEDA; Alberto RICO ALVARINO; Le LIU; Xipeng ZHU; Prasad Reddy KADIRI; Umesh PHUYAL - Web page: https://patentgrep.com/patent/US20220046589A1 ## CPC - H04W 72/30: Resource management for broadcast services - H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)} - H04L 1/1896: {ARQ related signaling} - H04L 12/189: {in combination with wireless systems (selective distribution or broadcast in wireless communication networks H04W4/06)} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/046: {the resource being in the space domain, e.g. beams} - H04W 72/1273: of downlink data flows - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 2001/0093: {Point-to-multipoint} - 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 Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration indicating a plurality of semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) communications associated with a multicast service. The UE may receive, based at least in part on determining that a reception condition is satisfied, an SPS PDSCH communication of the plurality of SPS PDSCH communications. Numerous other aspects are provided. ## Claims ### Claim 1 An apparatus for wireless communication at a user equipment (UE), comprising: a memory; and one or more processors, coupled to the memory, configured to: receive a configuration indicating a plurality of semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) communications associated with a multicast service; and receive, based at least in part on determining that a reception condition is satisfied, an SPS PDSCH communication of the plurality of SPS PDSCH communications. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the one or more processors are further configured to transmit acknowledgment or negative acknowledgement (ACK/NACK) feedback corresponding to the SPS PDSCH communication, wherein transmitting the ACK/NACK feedback comprises transmitting the ACK/NACK feedback on at least one of a physical uplink control channel resource associated with the SPS PDSCH communication or a physical uplink shared channel. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the one or more processors are further configured to receive a plurality of SPS PDSCH communication activation indications corresponding to the plurality of SPS PDSCH communications. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein the plurality of SPS PDSCH communication activation indications indicate a plurality of beams associated with the plurality of SPS PDSCH communications, and wherein the SPS PDSCH communication is associated with a beam of the plurality of beams. ### Claim 5 (depends on 3) The apparatus of claim 3, wherein the plurality of SPS PDSCH communication activation indications are carried in at least one activation downlink control information (DCI) communication. ### Claim 6 (depends on 5) The apparatus of claim 5, wherein the at least one activation DCI communication comprises a cyclic redundancy check that is scrambled using a radio network temporary identifier (RNTI), wherein the RNTI comprises a group RNTI (G-RNTI) or a group scheduling RNTI (GS-RNTI). ### Claim 7 (depends on 6) The apparatus of claim 6, wherein the G-RNTI or the GS-RNTI corresponds to the multicast service, and wherein an additional G-RNTI or an additional GS-RNTI corresponds to an additional multicast service. ### Claim 8 (depends on 6) The apparatus of claim 6, wherein the RNTI is not a cell RNTI or a configured scheduling RNTI. ### Claim 9 (depends on 5) The apparatus of claim 5, wherein the at least one activation DCI communication comprises a plurality of activation DCI communications. ### Claim 10 (depends on 9) The apparatus of claim 9, wherein a first activation DCI communication of the plurality of activation DCI communications carries a first SPS PDSCH communication activation indication of the plurality of SPS PDSCH communication activation indications, and wherein a second activation DCI communication of the plurality of activation DCI communications carries a second SPS PDSCH communication activation indication of the plurality of SPS PDSCH communication activation indications. ### Claim 11 (depends on 9) The apparatus of claim 9, wherein the plurality of activation DCI communications indicate a plurality of transmission configuration indicator (TCI) states associated with the plurality of SPS PDSCH communication activation indications. ### Claim 12 (depends on 11) The apparatus of claim 11, wherein a first activation DCI communication of the plurality of activation DCI communications indicates a first TCI state associated with a first SPS PDSCH communication of the plurality of SPS PDSCH communications, and wherein a second activation DCI communication of the plurality of activation DCI communications indicates a second TCI state associated with a second SPS PDSCH communication of the plurality of SPS PDSCH communications. ### Claim 13 (depends on 9) The apparatus of claim 9, wherein the plurality of activation DCI communications indicate a plurality of resource allocations associated with the plurality of SPS PDSCH communications, wherein the plurality of resource allocations comprise at least one of a time domain resource allocation or a frequency domain resource allocation. ### Claim 14 (depends on 13) The apparatus of claim 13, wherein a first activation DCI communication of the plurality of activation DCI communications indicates a first resource allocation of the plurality of resource allocations, and wherein a second activation DCI communication of the plurality of activation DCI indications indicates a second resource allocation of the plurality of resource allocations. ### Claim 15 (depends on 5) The apparatus of claim 5, wherein the at least one activation DCI communication comprises an activation DCI communication that carries the plurality of SPS PDSCH communication activation indications. ### Claim 16 (depends on 15) The apparatus of claim 15, wherein the activation DCI communication indicates a plurality of transmission configuration indicator (TCI) states associated with the plurality of SPS PDSCH communication activation indications. ### Claim 17 (depends on 15) The apparatus of claim 15, wherein the activation DCI communication indicates a plurality of resource allocations associated with the plurality of SPS PDSCH communications, wherein the plurality of resource allocations comprise at least one of a time domain resource allocation or a frequency domain resource allocation. ### Claim 18 (depends on 1) The apparatus of claim 1, wherein the configuration indicates a plurality of resource allocations associated with the plurality of SPS PDSCH communications, wherein the plurality of resource allocations comprise at least one of a time domain resource allocation or a frequency domain resource allocation. ### Claim 19 (depends on 1) The apparatus of claim 1, wherein the one or more processors are further configured to determine that the reception condition is satisfied based at least in part on a transmission configuration indicator (TCI) state associated with the SPS PDSCH communication. ### Claim 20 (depends on 1) The apparatus of claim 1, wherein the one or more processors are further configured to: receive a dynamic physical downlink control channel (PDCCH) communication that schedules a dynamic PDSCH communication, wherein a first transmission configuration indicator (TCI) state is associated with the dynamic PDSCH communication; store the first TCI state in a memory; and determine that the reception condition is satisfied based at least in part on a relationship between the first TCI state and a second TCI state, wherein the second TCI state is associated with the SPS PDSCH communication. ### Claim 21 (depends on 20) The apparatus of claim 20, wherein the one or more processors, to determine that the reception condition is satisfied, are configured to determine that the first TCI state matches the second TCI state. ### Claim 22 (depends on 20) The apparatus of claim 20, wherein the one or more processors, to determine that the reception condition is satisfied, are configured to: determine that the first TCI state is different than the second TCI state; and determine that a source synchronization signal block (SSB) corresponding to the first TCI state corresponds to the second TCI state. ### Claim 23 (depends on 22) The apparatus of claim 22, wherein the one or more processors are further configured to: determine that the SPS PDSCH communication satisfies the reception condition; determine that an additional SPS PDSCH communication satisfies the reception condition; and select the SPS PDSCH communication to be received. ### Claim 24 (depends on 23) The apparatus of claim 23, wherein the one or more processors, to select the SPS PDSCH communication, are configured to select the SPS PDSCH communication based at least in part on determining that the SPS PDSCH communication is scheduled to be transmitted before the additional SPS PDSCH communication. ### Claim 25 (depends on 1) The apparatus of claim 1, wherein determining that the reception condition is satisfied is based at least in part on a transmission configuration indicator (TCI) state associated with a control resource set (CORESET) that is associated with a search space set, wherein the search space set carries an activation downlink control information transmission that carries an SPS PDSCH communication activation indication corresponding to the SPS PDSCH communication. ### Claim 26 (depends on 25) The apparatus of claim 25, wherein the one or more processors are further configured to: monitor the search space set for a physical downlink control channel in a first slot that occurs before a second slot, wherein the SPS PDSCH communication is associated with the second slot, and wherein the one or more processors, to determine that the reception condition is satisfied, are configured to determine that the search space set is associated with the first slot. ### Claim 27 (depends on 1) The apparatus of claim 1, wherein the one or more processors are further configured to receive an additional configuration indicating an additional plurality of SPS PDSCH communications associated with an additional multicast service. ### Claim 28 An apparatus for wireless communication at a base station, comprising: a memory; and one or more processors, coupled to the memory, configured to: transmit a plurality of semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) communication activation indications corresponding to a plurality of SPS PDSCH communications associated with a multicast service; and transmit, based at least in part on the plurality of SPS PDSCH communication activation indications, a plurality of instances of the plurality of SPS PDSCH communications. ### Claim 29 A method of wireless communication performed by a user equipment (UE), comprising: receiving a configuration indicating a plurality of semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) communications associated with a multicast service; and receiving, based at least in part on determining that a reception condition is satisfied, an SPS PDSCH communication of the plurality of SPS PDSCH communications. ### Claim 30 A method of wireless communication performed by a base station, comprising: transmitting a plurality of semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) communication activation indications corresponding to a plurality of SPS PDSCH communications associated with a multicast service; and transmitting, based at least in part on the plurality of SPS PDSCH communication activation indications, a plurality of instances of the plurality of SPS PDSCH communications.