# US 2019/0320437 A1 · Evolved semi-persistent scheduling for wireless communications > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0320437 A1 - Document ID: US20190320437A1 - Status: Published application - Kind: A1 - Application number: 16/379,722 - Filed: 2019-04-09 - Published: 2019-10-17 - Earliest claimed: 2018-04-13 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Piyush Gupta; Junyi Li; Chong Li; Karl Georg Hampel - Web page: https://patentgrep.com/patent/US20190320437A1 ## CPC - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04L 1/18: Automatic repetition systems, e.g. Van Duuren systems - H04L 1/1887: {Scheduling and prioritising arrangements} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 72/20: Control channels or signalling for resource management - H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX] - 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 Methods, systems, and devices for wireless communications are described that support evolved semi-persistent scheduling (SPS) for wireless communications. A base station may configure SPS in which multiple time intervals are scheduled, each time interval including multiple slots that may be scheduled by different uplink or downlink resource allocations. The SPS configuration may include an ON-OFF duty cycle where an ON portion of the duty cycle spans a portion of a time interval and includes uplink and downlink resources, and an OFF portion of the duty cycle spans a remaining portion of the time interval and does not include any allocated SPS resources. Such SPS configurations may be used, for example, for transmitting sensor data and command information between controllers and sensors/actuators in a factory automation network. ## Claims ### Claim 1 A method for wireless communication, comprising: receiving, from a base station, a semi-persistent scheduling configuration that includes a plurality of downlink resources within multiple time intervals and a plurality of uplink resources within the multiple time intervals, each time interval of the multiple time intervals comprising multiple slots with different resource allocations; receiving a plurality of downlink transmissions from the base station via the plurality of downlink resources; and transmitting a plurality of uplink transmissions to the base station via the plurality of uplink resources. ### Claim 2 (depends on 1) The method of claim 1, wherein the semi-persistent scheduling configuration further includes an ON-OFF duty cycle that spans a plurality of the multiple time intervals, an ON portion of the ON-OFF duty cycle comprising one or more uplink resources of the plurality of uplink resources, one or more downlink resources of the plurality of downlink resources, or combinations thereof. ### Claim 3 (depends on 2) The method of claim 2, wherein the ON portion of the ON-OFF duty cycle spans a first set of slots, and wherein an OFF portion of the ON-OFF duty cycle spans a second set of slots corresponding to a remaining number of slots of the multiple time intervals that are outside of the first set of slots. ### Claim 4 (depends on 1) The method of claim 1, wherein the semi-persistent scheduling configuration further includes aggregation information for the multiple time intervals that indicates that the plurality of downlink resources and the plurality of uplink resources within each of the multiple time intervals repeats during a configured time period. ### Claim 5 (depends on 1) The method of claim 1, wherein the semi-persistent scheduling configuration further includes a number of configured time periods during which the semi-persistent scheduling configuration applies. ### Claim 6 (depends on 5) The method of claim 5, wherein a duration of each configured time period is a product of a number of time intervals and a number of slots per time interval. ### Claim 7 (depends on 1) The method of claim 1, wherein each of the multiple time intervals correspond to scheduled traffic windows, and wherein each slot of the multiple slots is scheduled by a resource allocation indicating uplink resources, downlink resources, or that no resources are allocated within the slot. ### Claim 8 (depends on 7) The method of claim 7, wherein one or more of the multiple slots includes an unspecified resource allocation configured for subsequent scheduling. ### Claim 9 (depends on 8) The method of claim 8, wherein the one or more of the multiple slots that include the unspecified resource allocation are available for retransmissions. ### Claim 10 (depends on 1) The method of claim 1, wherein the plurality of uplink resources are used at least in part for transmission of sensor data in a factory automation network and the plurality of downlink resources are used at least in part for transmission of command information in the factory automation network. ### Claim 11 (depends on 1) The method of claim 1, wherein the plurality of uplink resources and the plurality of downlink resources are used for transmission of control information in a factory automation network. ### Claim 12 A method for wireless communication, comprising: determining a semi-persistent scheduling configuration for a user equipment (UE) that includes a plurality of downlink resources within multiple time intervals and a plurality of uplink resources within the multiple time intervals, each time interval of the multiple time intervals comprising multiple slots with different resource allocations; transmitting the semi-persistent scheduling configuration to the UE; transmitting a plurality of downlink transmissions to the UE via the plurality of downlink resources; and receiving a plurality of uplink transmissions from the UE via the plurality of uplink resources. ### Claim 13 (depends on 12) The method of claim 12, wherein the semi-persistent scheduling configuration further includes an ON-OFF duty cycle that spans a plurality of the multiple time intervals, an ON portion of the ON-OFF duty cycle comprising one or more uplink resources of the plurality of uplink resources, one or more downlink resources of the plurality of downlink resources, or combinations thereof. ### Claim 14 (depends on 13) The method of claim 13, wherein the ON portion of the ON-OFF duty cycle spans a first set of slots, and wherein an OFF portion of the ON-OFF duty cycle spans a second set of slots corresponding to a remaining number of slots of the multiple time intervals that are outside of the first set of slots. ### Claim 15 (depends on 12) The method of claim 12, wherein the semi-persistent scheduling configuration further includes aggregation information for the multiple time intervals that indicates that the plurality of downlink resources and uplink resources within each of the multiple time intervals repeats during a configured time period. ### Claim 16 (depends on 12) The method of claim 12, wherein the semi-persistent scheduling configuration further includes a number of configured time periods during which the semi-persistent scheduling configuration applies. ### Claim 17 (depends on 16) The method of claim 16, wherein a duration of each configured time period is a product of a number of time intervals and a number of slots per time interval. ### Claim 18 (depends on 12) The method of claim 12, wherein each of the multiple time intervals correspond to scheduled traffic windows, and wherein each slot of the multiple slots is scheduled by a resource allocation indicating uplink resources, downlink resources, or that no resources are allocated within the slot. ### Claim 19 (depends on 18) The method of claim 18, wherein one or more of the multiple slots includes an unspecified resource allocation configured for subsequent scheduling. ### Claim 20 (depends on 19) The method of claim 19, wherein the one or more of the multiple slots that include the unspecified resource allocation are available for retransmissions. ### Claim 21 (depends on 12) The method of claim 12, wherein the plurality of uplink resources are used at least in part for transmission of sensor data in a factory automation network and the plurality of downlink resources are used at least in part for transmission of command information in the factory automation network. ### Claim 22 (depends on 12) The method of claim 12, wherein the plurality of uplink resources and the plurality of downlink resources are used for transmission of control information in a factory automation network. ### Claim 23 An apparatus for wireless communication, comprising: a processor, memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: receive, from a base station, a semi-persistent scheduling configuration that includes a plurality of downlink resources within multiple time intervals and a plurality of uplink resources within the multiple time intervals, each time interval of the multiple time intervals comprising multiple slots with different resource allocations; receive a plurality of downlink transmissions from the base station via the plurality of downlink resources; and transmit a plurality of uplink transmissions to the base station via the plurality of uplink resources. ### Claim 24 (depends on 23) The apparatus of claim 23, wherein the semi-persistent scheduling configuration further includes an ON-OFF duty cycle that spans a plurality of the multiple time intervals, an ON portion of the ON-OFF duty cycle comprising one or more uplink resources of the plurality of uplink resources, one or more downlink resources of the plurality of downlink resources, or combinations thereof. ### Claim 25 (depends on 24) The apparatus of claim 24, wherein the ON portion of the ON-OFF duty cycle spans a first set of slots, and wherein an OFF portion of the ON-OFF duty cycle spans a second set of slots corresponding to a remaining number of slots of the multiple time intervals that are outside of the first set of slots. ### Claim 26 (depends on 23) The apparatus of claim 23, wherein the semi-persistent scheduling configuration further includes a number of configured time periods during which the semi-persistent scheduling configuration applies. ### Claim 27 (depends on 23) The apparatus of claim 23, wherein each of the multiple time intervals correspond to scheduled traffic windows, and wherein each slot of the multiple slots is scheduled by a resource allocation indicating uplink resources, downlink resources, or that no resources are allocated within the slot. ### Claim 28 An apparatus for wireless communication, comprising: a processor, memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: determine a semi-persistent scheduling configuration for a user equipment (UE) that includes a plurality of downlink resources within multiple time intervals and a plurality of uplink resources within the multiple time intervals, each time interval of the multiple time intervals comprising multiple slots with different resource allocations; transmit the semi-persistent scheduling configuration to the UE; transmit a plurality of downlink transmissions to the UE via the plurality of downlink resources; and receive a plurality of uplink transmissions from the UE via the plurality of uplink resources. ### Claim 29 (depends on 28) The apparatus of claim 28, wherein the semi-persistent scheduling configuration further includes an ON-OFF duty cycle that spans a plurality of the multiple time intervals, an ON portion of the ON-OFF duty cycle comprising one or more uplink resources of the plurality of uplink resources, one or more downlink resources of the plurality of downlink resources, or combinations thereof. ### Claim 30 (depends on 28) The apparatus of claim 28, wherein the semi-persistent scheduling configuration further includes a number of configured time periods during which the semi-persistent scheduling configuration applies.