# US 2021/0243786 A1 · Uplink control information piggyback restrictions for ultra-reliable/low-latency communications > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243786 A1 - Document ID: US20210243786A1 - Status: Published application - Kind: A1 - Application number: 17/155,693 - Filed: 2021-01-22 - Published: 2021-08-05 - Earliest claimed: 2020-01-31 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Wei Yang; Seyedkianoush Hosseini; Yi Huang - Web page: https://patentgrep.com/patent/US20210243786A1 ## CPC - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04L 5/0042: {Intra-user or intra-terminal allocation} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/1268: of uplink data flows - H04W 72/535: {based on resource usage policies} - 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 Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify that an uplink data transmission scheduled for transmission by the UE in a first transmission time interval overlaps with multiple uplink control transmissions also scheduled for transmission by the UE during corresponding second transmission time intervals that are shorter in duration than the first transmission time interval. The UE may determine that the multiple uplink control transmissions satisfy a scheduling constraint that is based at least in part on an uplink control transmission type of the multiple uplink control transmissions that overlap with the uplink data transmission. The UE may transmit the uplink data transmission and the multiple uplink control transmissions based at least in part on the scheduling constraint being satisfied. ## Claims ### Claim 1 A method for wireless communication at a user equipment (UE), comprising: identifying that an uplink data transmission scheduled for transmission by the UE in a first transmission time interval overlaps with multiple uplink control transmissions scheduled for transmission by the UE during corresponding second transmission time intervals that are shorter in duration than the first transmission time interval; determining whether the multiple uplink control transmissions satisfy a scheduling constraint that is based at least in part on uplink control transmission types of the multiple uplink control transmissions that overlap with the uplink data transmission; and transmitting the uplink data transmission and the multiple uplink control transmissions based at least in part on the scheduling constraint being satisfied. ### Claim 2 (depends on 1) The method of claim 1, wherein the scheduling constraint is not satisfied when the uplink control transmission types of at least two of the multiple uplink control transmissions of the corresponding second transmission time intervals are the same. ### Claim 3 (depends on 1) The method of claim 1, wherein the scheduling constraint is not satisfied when at least two of the multiple uplink control transmissions are of an acknowledgement/negative-acknowledgement (ACK/NACK) transmission type. ### Claim 4 (depends on 1) The method of claim 1, wherein the scheduling constraint is not satisfied when at least two of the multiple uplink control transmissions are of a channel performance feedback transmission type. ### Claim 5 (depends on 1) The method of claim 1, further comprising: determining that the uplink control transmission types are different for the multiple uplink control transmissions; and determining that the multiple uplink control transmissions satisfy the scheduling constraint based at least in part on the determining that the uplink control transmission types are different. ### Claim 6 (depends on 5) The method of claim 5, wherein the different uplink control transmission types comprise an acknowledgement/negative-acknowledgement (ACK/NACK) transmission type and a non-ACK/NACK transmission type. ### Claim 7 (depends on 5) The method of claim 5, wherein the different uplink control transmission types comprise a channel performance feedback transmission type and a non-channel performance feedback transmission type. ### Claim 8 (depends on 1) The method of claim 1, wherein the scheduling constraint is satisfied when the uplink control transmission types of the multiple uplink control transmissions of the corresponding second transmission time intervals are different from one another. ### Claim 9 (depends on 1) The method of claim 1, further comprising: determining that the uplink control transmission types are the same for the multiple uplink control transmissions; and determining that the multiple uplink control transmissions satisfy the scheduling constraint based at least in part on the determining that the uplink control transmission types are the same. ### Claim 10 (depends on 9) The method of claim 9, wherein the same uplink control transmission types comprise a scheduling request transmission type. ### Claim 11 (depends on 1) The method of claim 1, wherein the first transmission time interval comprises a slot and the corresponding second transmission time intervals comprise sub-slots. ### Claim 12 A method for wireless communication at a base station, comprising: determining whether to schedule an uplink data transmission for transmission by a user equipment (UE) in a first transmission time interval that overlaps with multiple uplink control transmissions scheduled for transmission by the UE during corresponding second transmission time intervals that are shorter in duration than the first transmission time interval, the determining based at least in part on whether the multiple uplink control transmissions satisfy a scheduling constraint that is based at least in part on uplink control transmission types of the multiple uplink control transmissions that overlap with the first transmission time interval; scheduling the uplink data transmission based at least in part on the determining; and receiving the uplink data transmission and the multiple uplink control transmissions based at least in part on the scheduling constraint being satisfied. ### Claim 13 (depends on 12) The method of claim 12, wherein the scheduling constraint is not satisfied when the uplink control transmission types of at least two of the multiple uplink control transmissions of the corresponding second transmission time intervals are the same. ### Claim 14 (depends on 12) The method of claim 12, wherein the scheduling constraint is not satisfied when at least two of the multiple uplink control transmissions are of an acknowledgement/negative-acknowledgement (ACK/NACK) transmission type. ### Claim 15 (depends on 12) The method of claim 12, wherein the scheduling constraint is not satisfied when at least two of the multiple uplink control transmissions are of a channel performance feedback transmission type. ### Claim 16 (depends on 12) The method of claim 12, further comprising: determining that the uplink control transmission types are different for the multiple uplink control transmissions; and determining that the multiple uplink control transmissions satisfy the scheduling constraint based at least in part on the determining that the uplink control transmission types are different. ### Claim 17 (depends on 16) The method of claim 16, wherein the different uplink control transmission types comprise an acknowledgement/negative-acknowledgement (ACK/NACK) transmission type and a non-ACK/NACK transmission type. ### Claim 18 (depends on 16) The method of claim 16, wherein the different uplink control transmission types comprise a channel performance feedback transmission type and a non-channel performance feedback transmission type. ### Claim 19 (depends on 12) The method of claim 12, wherein the scheduling constraint is satisfied when the uplink control transmission types of the multiple uplink control transmissions of the corresponding second transmission time intervals are different from one another. ### Claim 20 (depends on 12) The method of claim 12, further comprising: determining that the uplink control transmission types are the same for the multiple uplink control transmissions; and determining that the multiple uplink control transmissions satisfy the scheduling constraint based at least in part on the determining that the uplink control transmission types are the same. ### Claim 21 (depends on 20) The method of claim 20, wherein the same uplink control transmission types comprise a scheduling request transmission type. ### Claim 22 (depends on 12) The method of claim 12, wherein the first transmission time interval comprises a slot and the corresponding second transmission time intervals comprise sub-slots. ### Claim 23 An apparatus for wireless communication at a user equipment (UE), comprising: a processor, memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: identify that an uplink data transmission scheduled for transmission by the UE in a first transmission time interval overlaps with multiple uplink control transmissions scheduled for transmission by the UE during corresponding second transmission time intervals that are shorter in duration than the first transmission time interval; determine whether the multiple uplink control transmissions satisfy a scheduling constraint that is based at least in part on uplink control transmission types of the multiple uplink control transmissions that overlap with the uplink data transmission; and transmit the uplink data transmission and the multiple uplink control transmissions based at least in part on the scheduling constraint being satisfied. ### Claim 24 (depends on 23) The apparatus of claim 23, wherein the scheduling constraint is not satisfied when the uplink control transmission types of at least two of the multiple uplink control transmissions of the corresponding second transmission time intervals are the same. ### Claim 25 (depends on 23) The apparatus of claim 23, wherein the scheduling constraint is not satisfied when at least two of the multiple uplink control transmissions are of an acknowledgement/negative-acknowledgement (ACK/NACK) transmission type. ### Claim 26 (depends on 23) The apparatus of claim 23, wherein the scheduling constraint is not satisfied when at least two of the multiple uplink control transmissions are of a channel performance feedback transmission type. ### Claim 27 (depends on 23) The apparatus of claim 23, wherein the instructions are further executable by the processor to cause the apparatus to: determine that the uplink control transmission types are different for the multiple uplink control transmissions; and determine that the multiple uplink control transmissions satisfy the scheduling constraint based at least in part on the determining that the uplink control transmission types are different. ### Claim 28 (depends on 27) The apparatus of claim 27, wherein the different uplink control transmission types comprise an acknowledgement/negative-acknowledgement (ACK/NACK) transmission type and a non-ACK/NACK transmission type. ### Claim 29 (depends on 27) The apparatus of claim 27, wherein the different uplink control transmission types comprise a channel performance feedback transmission type and a non-channel performance feedback transmission type. ### Claim 30 (depends on 23) The apparatus of claim 23, wherein the scheduling constraint is satisfied when the uplink control transmission types of the multiple uplink control transmissions of the corresponding second transmission time intervals are different from one another. ### Claim 31 (depends on 23) The apparatus of claim 23, wherein the instructions are further executable by the processor to cause the apparatus to: determine that the uplink control transmission types are the same for the multiple uplink control transmissions; and determine that the multiple uplink control transmissions satisfy the scheduling constraint based at least in part on the determining that the uplink control transmission types are the same. ### Claim 32 (depends on 31) The apparatus of claim 31, wherein the same uplink control transmission types comprise a scheduling request transmission type. ### Claim 33 (depends on 23) The apparatus of claim 23, wherein the first transmission time interval comprises a slot and the corresponding second transmission time intervals comprise sub-slots. ### Claim 34 An apparatus for wireless communication at a base station, comprising: a processor, memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: determine whether to schedule an uplink data transmission for transmission by a user equipment (UE) in a first transmission time interval that overlaps with multiple uplink control transmissions scheduled for transmission by the UE during corresponding second transmission time intervals that are shorter in duration than the first transmission time interval, the determining based at least in part on whether the multiple uplink control transmissions satisfy a scheduling constraint that is based at least in part on uplink control transmission types of the multiple uplink control transmissions that overlap with the first transmission time interval; schedule the uplink data transmission based at least in part on the determining; and receive the uplink data transmission and the multiple uplink control transmissions based at least in part on the scheduling constraint being satisfied. ### Claim 35 (depends on 34) The apparatus of claim 34, wherein the scheduling constraint is not satisfied when the uplink control transmission types of the multiple uplink control transmissions of the corresponding second transmission time intervals are the same. ### Claim 36 (depends on 34) The apparatus of claim 34, wherein the scheduling constraint is not satisfied when at least two of the multiple uplink control transmissions are of an acknowledgement/negative-acknowledgement (ACK/NACK) transmission type. ### Claim 37 (depends on 34) The apparatus of claim 34, wherein the scheduling constraint is not satisfied when at least two of the multiple uplink control transmissions are of a channel performance feedback transmission type. ### Claim 38 (depends on 34) The apparatus of claim 34, wherein the instructions are further executable by the processor to cause the apparatus to: determine that the uplink control transmission types are different for the multiple uplink control transmissions; and determine that the multiple uplink control transmissions satisfy the scheduling constraint based at least in part on the determining that the uplink control transmission types are different. ### Claim 39 (depends on 38) The apparatus of claim 38, wherein the different uplink control transmission types comprise an acknowledgement/negative-acknowledgement (ACK/NACK) transmission type and a non-ACK/NACK transmission type. ### Claim 40 (depends on 38) The apparatus of claim 38, wherein the different uplink control transmission types comprise a channel performance feedback transmission type and a non-channel performance feedback transmission type. ### Claim 41 (depends on 34) The apparatus of claim 34, wherein the scheduling constraint is satisfied when the uplink control transmission types of the multiple uplink control transmissions of the corresponding second transmission time intervals are different from one another. ### Claim 42 (depends on 34) The apparatus of claim 34, wherein the instructions are further executable by the processor to cause the apparatus to: determine that the uplink control transmission types are the same for the multiple uplink control transmissions; and determine that the multiple uplink control transmissions satisfy the scheduling constraint based at least in part on the determining that the uplink control transmission types are the same. ### Claim 43 (depends on 42) The apparatus of claim 42, wherein the same uplink control transmission types comprise a scheduling request transmission type. ### Claim 44 (depends on 34) The apparatus of claim 34, wherein the first transmission time interval comprises a slot and the corresponding second transmission time intervals comprise sub-slots. ### Claim 45 An apparatus for wireless communication at a user equipment (UE), comprising: means for identifying that an uplink data transmission scheduled for transmission by the UE in a first transmission time interval overlaps with multiple uplink control transmissions scheduled for transmission by the UE during corresponding second transmission time intervals that are shorter in duration than the first transmission time interval; means for determining whether the multiple uplink control transmissions satisfy a scheduling constraint that is based at least in part on uplink control transmission types of the multiple uplink control transmissions that overlap with the uplink data transmission; and means for transmitting the uplink data transmission and the multiple uplink control transmissions based at least in part on the scheduling constraint being satisfied. ### Claim 46 (depends on 45) The apparatus of claim 45, wherein the scheduling constraint is not satisfied when the uplink control transmission types of at least two of the multiple uplink control transmissions of the corresponding second transmission time intervals are the same. ### Claim 47 (depends on 45) The apparatus of claim 45, wherein the scheduling constraint is not satisfied when at least two of the multiple uplink control transmissions are of an acknowledgement/negative-acknowledgement (ACK/NACK) transmission type. ### Claim 48 An apparatus for wireless communication at a base station, comprising: means for determining whether to schedule an uplink data transmission for transmission by a user equipment (UE) in a first transmission time interval that overlaps with multiple uplink control transmissions scheduled for transmission by the UE during corresponding second transmission time intervals that are shorter in duration than the first transmission time interval, the determining based at least in part on whether the multiple uplink control transmissions satisfy a scheduling constraint that is based at least in part on uplink control transmission types of the multiple uplink control transmissions that overlap with the first transmission time interval; means for scheduling the uplink data transmission based at least in part on the determining; and means for receiving the uplink data transmission and the multiple uplink control transmissions based at least in part on the scheduling constraint being satisfied. ### Claim 49 (depends on 48) The apparatus of claim 48, wherein the scheduling constraint is not satisfied when the uplink control transmission types of at least two of the multiple uplink control transmissions of the corresponding second transmission time intervals are the same. ### Claim 50 (depends on 48) The apparatus of claim 48, wherein the scheduling constraint is not satisfied when at least two of the multiple uplink control transmissions are of an acknowledgement/negative-acknowledgement (ACK/NACK) transmission type. ### Claim 51 A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by a processor to: identify that an uplink data transmission scheduled for transmission by the UE in a first transmission time interval overlaps with multiple uplink control transmissions scheduled for transmission by the UE during corresponding second transmission time intervals that are shorter in duration than the first transmission time interval; determine whether the multiple uplink control transmissions satisfy a scheduling constraint that is based at least in part on uplink control transmission types of the multiple uplink control transmissions that overlap with the uplink data transmission; and transmit the uplink data transmission and the multiple uplink control transmissions based at least in part on whether the scheduling constraint being satisfied. ### Claim 52 (depends on 51) The non-transitory computer-readable medium of claim 51, wherein the scheduling constraint is not satisfied when the uplink control transmission types of at least two of the multiple uplink control transmissions of the corresponding second transmission time intervals are the same. ### Claim 53 (depends on 51) The non-transitory computer-readable medium of claim 51, wherein the scheduling constraint is not satisfied when at least two of the multiple uplink control transmissions are of an acknowledgement/negative-acknowledgement (ACK/NACK) transmission type. ### Claim 54 A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to: determine whether to schedule an uplink data transmission for transmission by a user equipment (UE) in a first transmission time interval that overlaps with multiple uplink control transmissions scheduled for transmission by the UE during corresponding second transmission time intervals that are shorter in duration than the first transmission time interval, the determining based at least in part on whether the multiple uplink control transmissions satisfy a scheduling constraint that is based at least in part on uplink control transmission types of the multiple uplink control transmissions that overlap with the first transmission time interval; schedule the uplink data transmission based at least in part on the determining; and receive the uplink data transmission and the multiple uplink control transmissions based at least in part on the scheduling constraint being satisfied. ### Claim 55 (depends on 54) The non-transitory computer-readable medium of claim 54, wherein the scheduling constraint is not satisfied when the uplink control transmission types of at least two of the multiple uplink control transmissions of the corresponding second transmission time intervals are the same. ### Claim 56 (depends on 54) The non-transitory computer-readable medium of claim 54, wherein the scheduling constraint is not satisfied when at least two of the multiple uplink control transmissions are of an acknowledgement/negative-acknowledgement (ACK/NACK) transmission type.