# US 2021/0243779 A1 · Simultaneous pucch-pusch with different priorities > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243779 A1 - Document ID: US20210243779A1 - Status: Published application - Kind: A1 - Application number: 17/165,743 - Filed: 2021-02-02 - Published: 2021-08-05 - Earliest claimed: 2020-02-04 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Kazuki Takeda; Peter Gaal; Wanshi Chen; Yi Huang - Web page: https://patentgrep.com/patent/US20210243779A1 ## CPC - H04W 72/1268: of uplink data flows - H04L 1/1664: {the supervisory signal being transmitted together with payload signals; piggybacking} - H04L 1/1854: {Scheduling and prioritising arrangements} - H04L 1/1887: {Scheduling and prioritising arrangements} - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 72/56: based on priority criteria - H04L 1/0026: {Transmission of channel quality indication} - H04L 1/1671: {the supervisory signal being transmitted together with control information} - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 72/569: {of the traffic information} - 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. The described techniques may provide for handling of priority indications in scenarios where simultaneous physical uplink control channel (PUCCH)-physical uplink shared channel (PUSCH) is supported. For example, wireless communications systems may configure (e.g., via radio resource control (RRC) signaling) simultaneous PUCCH-PUSCH across two or more carriers, where piggybacking of feedback information on uplink shared channel transmission may be disabled. Further, a grant (e.g., downlink control information (DCI) scheduling a PUSCH transmission) may include a priority index field to indicate a priority associated with a transmission or resources scheduled by the grant. The described techniques may provide for efficient handling of priority indications associated with scheduled transmissions that overlap when simultaneous PUCCH-PUSCH is supported (e.g., techniques are provided for performing or dropping scheduled transmissions that overlap when simultaneous PUCCH-PUSCH is enabled based on any priority indications associated with the overlapping scheduled transmissions). ## Claims ### Claim 1 A method for wireless communication at a user equipment (UE), comprising: receiving a feedback information piggybacking status for a first uplink carrier of a plurality of uplink carriers configured for the UE; receiving a first uplink grant that indicates a first uplink channel transmission occasion and a first priority index for a first uplink transmission on the first uplink carrier; receiving a second uplink grant that indicates a second uplink channel transmission occasion that at least partially overlaps in time with the first uplink channel transmission occasion; and performing, based at least in part on the feedback information piggybacking status for the first uplink carrier and the first priority index, the first uplink transmission on the first uplink carrier during the first uplink channel transmission occasion, a second uplink transmission during the second uplink channel transmission occasion, or both. ### Claim 2 (depends on 1) The method of claim 1, further comprising: identifying a priority of the first uplink transmission and the second uplink transmission based at least in part on the first priority index and the second uplink channel transmission occasion at least partially overlapping in time with the first uplink channel transmission occasion, wherein the first uplink transmission, the second uplink transmission, or both are performed based at least in part on the priority. ### Claim 3 (depends on 1) The method of claim 1, wherein receiving the second uplink grant comprises: receiving the second uplink grant that indicates the second uplink channel transmission occasion and a second priority index for the second uplink transmission, wherein the first uplink transmission, the second uplink transmission, or both are performed based at least in part on the first priority index, the second priority index, and the feedback information piggybacking status. ### Claim 4 (depends on 3) The method of claim 3, further comprising: identifying an uplink control channel occasion that at least partially overlaps in time with the first uplink channel transmission occasion based at least in part on the first uplink grant; and performing or dropping an uplink control transmission during the uplink control channel occasion based at least in part on the first priority index, the second priority index, the feedback information piggybacking status, or some combination thereof. ### Claim 5 (depends on 4) The method of claim 4, further comprising: dropping the second uplink transmission based at least in part on the second priority index being associated with a lower priority than the first priority index, wherein the first uplink transmission and the uplink control transmission are performed based at least in part on the dropping of the second uplink transmission. ### Claim 6 (depends on 4) The method of claim 4, further comprising: dropping the first uplink transmission, the uplink control transmission, or both based at least in part on the first priority index being associated with a lower priority than the second priority index, wherein the second uplink transmission is performed based at least in part on the dropping of the first uplink transmission, the uplink control transmission, or both. ### Claim 7 (depends on 4) The method of claim 4, further comprising: identifying a second uplink control channel occasion that at least partially overlaps in time with the second uplink channel transmission occasion based at least in part on the second uplink grant; and dropping the second uplink transmission, a second uplink control transmission during the second uplink control channel occasion, or both based at least in part on the second priority index being associated with a lower priority than the first priority index, wherein the first uplink transmission and the uplink control transmission are performed based at least in part on the dropping of the second uplink transmission, the second uplink control transmission, or both. ### Claim 8 (depends on 4) The method of claim 4, further comprising: determining the second uplink transmission is associated with a second uplink carrier based at least in part on the second uplink grant, wherein the second uplink carrier is different from the first uplink carrier. ### Claim 9 (depends on 8) The method of claim 8, wherein the first uplink transmission and the second uplink transmission are performed based at least in part on the feedback information piggybacking status for the first uplink carrier and the second uplink carrier being different from the first uplink carrier. ### Claim 10 (depends on 4) The method of claim 4, further comprising: determining the second uplink transmission is associated with the first uplink carrier based at least in part on the second uplink grant; and dropping the second uplink transmission based at least in part on the second priority index being associated with a lower priority than the first priority index and the second uplink transmission being associated with the first uplink carrier, wherein the first uplink transmission is performed based at least in part on the dropping of the second uplink transmission. ### Claim 11 (depends on 4) The method of claim 4, further comprising: determining the first uplink transmission is associated with a first frequency band; and determining the uplink control transmission is associated with a second frequency band, wherein the first uplink transmission and the uplink control transmission are performed based at least in part on the first frequency band being different than the second frequency band. ### Claim 12 (depends on 4) The method of claim 4, further comprising: determining the uplink control transmission is associated with a first frequency band; and determining the second uplink transmission is associated with a second frequency band, wherein the uplink control transmission and the second uplink transmission are performed based at least in part on the first frequency band being different than the second frequency band. ### Claim 13 (depends on 3) The method of claim 3, further comprising: determining the first uplink transmission is associated with a first frequency band; determining the second uplink transmission is associated with the first frequency band; and dropping the first uplink transmission or the second uplink transmission based at least in part on the first uplink transmission and the second uplink transmission being associated with the first frequency band, wherein the first uplink transmission or the second uplink transmission are performed based at least in part on the dropping of the first uplink transmission or the second uplink transmission. ### Claim 14 (depends on 13) The method of claim 13, wherein the first uplink transmission or the second uplink transmission is dropped based at least in part on the first priority index, the second priority index, and the feedback information piggybacking status. ### Claim 15 (depends on 3) The method of claim 3, further comprising: identifying a first uplink control channel occasion that at least partially overlaps in time with the first uplink channel transmission occasion based at least in part on the first uplink grant; identifying a second uplink control channel occasion that at least partially overlaps in time with the second uplink channel transmission occasion based at least in part on the second uplink grant; and performing the first uplink transmission during the first uplink channel transmission occasion, the second uplink transmission during the second uplink channel transmission occasion, a first uplink control transmission during the first uplink control channel occasion, a second uplink control transmission during the second uplink control channel occasion, or some combination thereof based at least in part on the feedback information piggybacking status. ### Claim 16 (depends on 15) The method of claim 15, wherein the first uplink transmission and the first uplink control transmission are configured on a first cell group and the second uplink transmission and the second uplink control transmission are configured on a second cell group. ### Claim 17 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: receive a feedback information piggybacking status for a first uplink carrier of a plurality of uplink carriers configured for the UE; receive a first uplink grant that indicates a first uplink channel transmission occasion and a first priority index for a first uplink transmission on the first uplink carrier; receive a second uplink grant that indicates a second uplink channel transmission occasion that at least partially overlaps in time with the first uplink channel transmission occasion; and perform, based at least in part on the feedback information piggybacking status for the first uplink carrier and the first priority index, the first uplink transmission on the first uplink carrier during the first uplink channel transmission occasion, a second uplink transmission during the second uplink channel transmission occasion, or both. ### Claim 18 (depends on 17) The apparatus of claim 17, wherein the instructions are further executable by the processor to cause the apparatus to: identify a priority of the first uplink transmission and the second uplink transmission based at least in part on the first priority index and the second uplink channel transmission occasion at least partially overlapping in time with the first uplink channel transmission occasion, wherein the first uplink transmission, the second uplink transmission, or both are performed based at least in part on the priority. ### Claim 19 (depends on 17) The apparatus of claim 17, wherein the instructions to receive the second uplink grant are executable by the processor to cause the apparatus to: receive the second uplink grant that indicates the second uplink channel transmission occasion and a second priority index for the second uplink transmission, wherein the first uplink transmission, the second uplink transmission, or both are performed based at least in part on the first priority index, the second priority index, and the feedback information piggybacking status. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the instructions are further executable by the processor to cause the apparatus to: identify an uplink control channel occasion that at least partially overlaps in time with the first uplink channel transmission occasion based at least in part on the first uplink grant; and perform or drop an uplink control transmission during the uplink control channel occasion based at least in part on the first priority index, the second priority index, the feedback information piggybacking status, or some combination thereof. ### Claim 21 (depends on 20) The apparatus of claim 20, wherein the instructions are further executable by the processor to cause the apparatus to: drop the second uplink transmission based at least in part on the second priority index being associated with a lower priority than the first priority index, wherein the first uplink transmission and the uplink control transmission are performed based at least in part on the dropping of the second uplink transmission. ### Claim 22 (depends on 20) The apparatus of claim 20, wherein the instructions are further executable by the processor to cause the apparatus to: drop the first uplink transmission, the uplink control transmission, or both based at least in part on the first priority index being associated with a lower priority than the second priority index, wherein the second uplink transmission is performed based at least in part on the dropping of the first uplink transmission, the uplink control transmission, or both. ### Claim 23 (depends on 20) The apparatus of claim 20, wherein the instructions are further executable by the processor to cause the apparatus to: identify a second uplink control channel occasion that at least partially overlaps in time with the second uplink channel transmission occasion based at least in part on the second uplink grant; and drop the second uplink transmission, a second uplink control transmission during the second uplink control channel occasion, or both based at least in part on the second priority index being associated with a lower priority than the first priority index, wherein the first uplink transmission and the uplink control transmission are performed based at least in part on the dropping of the second uplink transmission, the second uplink control transmission, or both. ### Claim 24 (depends on 20) The apparatus of claim 20, wherein the instructions are further executable by the processor to cause the apparatus to: determine the second uplink transmission is associated with a second uplink carrier based at least in part on the second uplink grant, wherein the second uplink carrier is different from the first uplink carrier. ### Claim 25 (depends on 24) The apparatus of claim 24, wherein the first uplink transmission and the second uplink transmission are performed based at least in part on the feedback information piggybacking status for the first uplink carrier and the second uplink carrier being different from the first uplink carrier. ### Claim 26 (depends on 20) The apparatus of claim 20, wherein the instructions are further executable by the processor to cause the apparatus to: determine the second uplink transmission is associated with the first uplink carrier based at least in part on the second uplink grant; and drop the second uplink transmission based at least in part on the second priority index being associated with a lower priority than the first priority index and the second uplink transmission being associated with the first uplink carrier, wherein the first uplink transmission is performed based at least in part on the dropping of the second uplink transmission. ### Claim 27 (depends on 20) The apparatus of claim 20, wherein the instructions are further executable by the processor to cause the apparatus to: determine the first uplink transmission is associated with a first frequency band; and determine the uplink control transmission is associated with a second frequency band, wherein the first uplink transmission and the uplink control transmission are performed based at least in part on the first frequency band being different than the second frequency band. ### Claim 28 (depends on 20) The apparatus of claim 20, wherein the instructions are further executable by the processor to cause the apparatus to: determine the uplink control transmission is associated with a first frequency band; and determine the second uplink transmission is associated with a second frequency band, wherein the uplink control transmission and the second uplink transmission are performed based at least in part on the first frequency band being different than the second frequency band. ### Claim 29 (depends on 19) The apparatus of claim 19, wherein the instructions are further executable by the processor to cause the apparatus to: determine the first uplink transmission is associated with a first frequency band; determine the second uplink transmission is associated with the first frequency band; and drop the first uplink transmission or the second uplink transmission based at least in part on the first uplink transmission and the second uplink transmission being associated with the first frequency band, wherein the first uplink transmission or the second uplink transmission are performed based at least in part on the dropping of the first uplink transmission or the second uplink transmission. ### Claim 30 (depends on 29) The apparatus of claim 29, wherein the first uplink transmission or the second uplink transmission is dropped based at least in part on the first priority index, the second priority index, and the feedback information piggybacking status. ### Claim 31 (depends on 19) The apparatus of claim 19, wherein the instructions are further executable by the processor to cause the apparatus to: identify a first uplink control channel occasion that at least partially overlaps in time with the first uplink control channel occasion based at least in part on the first uplink grant; identify a second uplink control channel occasion that at least partially overlaps in time with the second uplink channel transmission occasion based at least in part on the second uplink grant; and perform the first uplink transmission during the first uplink channel transmission occasion, the second uplink transmission during the second uplink channel transmission occasion, a first uplink control transmission during the first uplink control channel occasion, a second uplink control transmission during the second uplink control channel occasion, or some combination thereof based at least in part on the feedback information piggybacking status. ### Claim 32 (depends on 31) The apparatus of claim 31, wherein the first uplink transmission and the first uplink control transmission are configured on a first cell group and the second uplink transmission and the second uplink control transmission are configured on a second cell group. ### Claim 33 A method for wireless communication at a base station, comprising: transmitting a feedback information piggybacking status for a first uplink carrier of a plurality of uplink carriers configured for a user equipment (UE); transmitting a first uplink grant that indicates a first uplink channel transmission occasion and a first priority index for a first uplink transmission on the first uplink carrier; transmitting a second uplink grant that indicates a second uplink channel transmission occasion that at least partially overlaps in time with the first uplink channel transmission occasion; and receiving, from the UE and based at least in part on the feedback information piggybacking status for the first uplink carrier and the first priority index, the first uplink transmission on the first uplink carrier during the first uplink channel transmission occasion, a second uplink transmission during the second uplink channel transmission occasion, or both. ### 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: transmit a feedback information piggybacking status for a first uplink carrier of a plurality of uplink carriers configured for a user equipment (UE); transmit a first uplink grant that indicates a first uplink channel transmission occasion and a first priority index for a first uplink transmission on the first uplink carrier; transmit a second uplink grant that indicates a second uplink channel transmission occasion that at least partially overlaps in time with the first uplink channel transmission occasion; and receive, from the UE and based at least in part on the feedback information piggybacking status for the first uplink carrier and the first priority index, the first uplink transmission on the first uplink carrier during the first uplink channel transmission occasion, a second uplink transmission during the second uplink channel transmission occasion, or both.