# US 2019/0380141 A1 · Techniques for updating semi-persistent scheduling (sps) configuration in wireless communications > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0380141 A1 - Document ID: US20190380141A1 - Status: Published application - Kind: A1 - Application number: 16/433,850 - Filed: 2019-06-06 - Published: 2019-12-12 - Earliest claimed: 2018-06-11 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Piyush GUPTA; Junyi LI - Web page: https://patentgrep.com/patent/US20190380141A1 ## CPC - H04W 72/20: Control channels or signalling for resource management - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 72/535: {based on resource usage policies} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - 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 Aspects described herein relate to reporting feedback for semi-persistent scheduling (SPS) configuration updates. SPS communications can be activated over SPS resources with an access point. SPS update resources related to a configured periodicity for receiving SPS updates to SPS resource grants over a control channel can be determined. It can also be determined whether a SPS update is received in the SPS update resources over the control channel. Feedback can be transmitted to the access point, where the feedback indicates whether the SPS update is received over the SPS update resources. ## Claims ### Claim 1 A method for reporting feedback for semi-persistent scheduling (SPS) configuration updates, comprising: activating SPS communications for communicating over SPS resources with an access point; determining SPS update resources related to a configured periodicity for receiving SPS updates to SPS resource grants over a control channel; determining whether a SPS update is received in the SPS update resources over the control channel; and transmitting feedback to the access point, wherein the feedback indicates whether the SPS update is received over the SPS update resources. ### Claim 2 (depends on 1) The method of claim 1, wherein determining the SPS update resources is based at least in part on receiving a configuration from the access point indicating the configured periodicity or one or more other parameters related to the SPS update resources. ### Claim 3 (depends on 2) The method of claim 2, wherein the configuration indicates a delay before which the access point applies the SPS update to the SPS resource grants. ### Claim 4 (depends on 1) The method of claim 1, further comprising, where the SPS update is determined to be received, descrambling the SPS update based on an identifier assigned by the access point for receiving the SPS updates. ### Claim 5 (depends on 1) The method of claim 1, further comprising determining, based on a configuration received from the access point, feedback resources for transmitting the feedback to the access point. ### Claim 6 (depends on 1) The method of claim 1, further comprising, where transmitting the feedback includes transmitting a non-acknowledgement to the access point, receiving the SPS update in a subsequent time period, and applying the SPS update to transmit SPS communications to the access point over resources indicated in the SPS update as received in the subsequent time period. ### Claim 7 (depends on 1) The method of claim 1, further comprising, where transmitting the feedback includes transmitting an acknowledgement to the access point, receiving a next SPS update in subsequent SPS update resources based on the configured periodicity. ### Claim 8 (depends on 1) The method of claim 1, further comprising, where transmitting the feedback includes transmitting an acknowledgement to the access point, communicating with the access point over updated SPS resources based on the SPS update. ### Claim 9 A method for updating a semi-persistent scheduling (SPS) configuration, comprising: activating SPS communications over SPS resources with a user equipment (UE); indicating SPS update resources related to a configured periodicity for transmitting SPS updates to SPS resource grants over a control channel; transmitting an SPS update over the SPS update resources; determining whether feedback, indicating whether the SPS update is received over the SPS update resources, is received from the UE; and transmitting a next SPS update based on determining whether the feedback is received. ### Claim 10 (depends on 9) The method of claim 9, further comprising transmitting, to the UE, a configuration indicating the configured periodicity or one or more other parameters related to the SPS update resources. ### Claim 11 (depends on 10) The method of claim 10, wherein the configuration indicates a delay before which the SPS update is applied to the SPS resource grants. ### Claim 12 (depends on 9) The method of claim 9, further comprising scrambling the SPS update based on an identifier assigned to the UE for receiving the SPS updates. ### Claim 13 (depends on 9) The method of claim 9, wherein the feedback is received, and wherein transmitting the next SPS update comprises transmitting the SPS update in a subsequent time period based on determining that the feedback is non-acknowledgement. ### Claim 14 (depends on 9) The method of claim 9, wherein the feedback is not received, and wherein transmitting the next SPS update comprises transmitting the SPS update in a subsequent time period. ### Claim 15 (depends on 9) The method of claim 9, wherein the feedback is received, and wherein transmitting the next SPS update comprises transmitting a subsequent SPS update in subsequent SPS update resources based on determining that the feedback is acknowledgement. ### Claim 16 (depends on 9) The method of claim 9, further comprising transmitting, to the UE, a feedback configuration indicating feedback resources over which to transmit the feedback. ### Claim 17 An apparatus for wireless communication, comprising: a transceiver; a memory; at least one processor communicatively coupled with the transceiver and the memory, wherein the at least one processor is configured to: activate SPS communications for communicating over SPS resources with an access point; determine SPS update resources related to a configured periodicity for receiving SPS updates to SPS resource grants over a control channel; determine whether a SPS update is received in the SPS update resources over the control channel; and transmit feedback to the access point, wherein the feedback indicates whether the SPS update is received over the SPS update resources. ### Claim 18 (depends on 17) The apparatus of claim 17, wherein the at least one processor is configured to determine the SPS update resources based at least in part on receiving a configuration from the access point indicating the configured periodicity or one or more other parameters related to the SPS update resources. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein the configuration indicates a delay before which the access point applies the SPS update to the SPS resource grants. ### Claim 20 (depends on 17) The apparatus of claim 17, wherein the at least one processor is further configured to, where the SPS update is determined to be received, descramble the SPS update based on an identifier assigned by the access point for receiving the SPS updates. ### Claim 21 (depends on 17) The apparatus of claim 17, wherein the at least one processor is further configured to determine, based on a configuration received from the access point, feedback resources for transmitting the feedback to the access point. ### Claim 22 (depends on 17) The apparatus of claim 17, wherein the at least one processor is further configured to, where transmitting the feedback includes transmitting a non-acknowledgement to the access point, receive the SPS update in a subsequent time period, and apply the SPS update to transmit SPS communications to the access point over resources indicated in the SPS update as received in the subsequent time period. ### Claim 23 (depends on 17) The apparatus of claim 17, wherein the at least one processor is further configured to, where transmitting the feedback includes transmitting an acknowledgement to the access point, receive a next SPS update in subsequent SPS update resources based on the configured periodicity. ### Claim 24 (depends on 17) The apparatus of claim 17, wherein the at least one processor is further configured to, where transmitting the feedback includes transmitting an acknowledgement to the access point, communicate with the access point over updated SPS resources based on the SPS update. ### Claim 25 An apparatus for wireless communication, comprising: a transceiver; a memory; at least one processor communicatively coupled with the transceiver and the memory, wherein the at least one processor is configured to: activate SPS communications over SPS resources with a user equipment (UE); indicate SPS update resources related to a configured periodicity for transmitting SPS updates to SPS resource grants over a control channel; transmit an SPS update over the SPS update resources; determine whether feedback, indicating whether the SPS update is received over the SPS update resources, is received from the UE; and transmit a next SPS update based on determining whether the feedback is received. ### Claim 26 (depends on 25) The apparatus of claim 25, wherein the at least one processor is further configured to transmit, to the UE, a configuration indicating the configured periodicity or one or more other parameters related to the SPS update resources. ### Claim 27 (depends on 26) The apparatus of claim 26, wherein the configuration indicates a delay before which the SPS update is applied to the SPS resource grants. ### Claim 28 (depends on 25) The apparatus of claim 25, wherein the at least one processor is further configured to scramble the SPS update based on an identifier assigned to the UE for receiving the SPS updates. ### Claim 29 (depends on 25) The apparatus of claim 25, wherein the feedback is received, and wherein the at least one processor is configured to at least one of transmit the next SPS update as the SPS update in a subsequent time period based on determining that the feedback is non-acknowledgement or transmit a subsequent SPS update in subsequent SPS update resources based on determining that the feedback is acknowledgement. ### Claim 30 (depends on 25) The apparatus of claim 25, wherein the feedback is not received, and wherein the at least one processor is configured to transmit the next SPS update as the SPS update in a subsequent time period.