# US 11,452,167 B2 · Methods and apparatus to selectively monitor uplink preemptive indication for supplementary uplink and non-supplementary uplink carriers > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,452,167 B2 - Document ID: US11452167B2 - Status: Granted - Kind: B2 - Application number: 16/869,490 - Filed: 2020-05-07 - Published: 2020-11-12 - Granted: 2022-09-20 - Earliest claimed: 2019-05-08 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Wei Yang; Seyed Ali Akbar Fakoorian; Seyedkianoush Hosseini; Wanshi Chen - Web page: https://patentgrep.com/patent/US11452167B2 ## CPC - H04W 76/34: Selective release of ongoing connections - H04W 24/08: Testing, {supervising or monitoring} using real traffic - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/1268: of uplink data flows - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 5/001: {the frequencies being arranged in component carriers} - H04W 72/20: Control channels or signalling for resource management - H04W 74/0833: Random access procedures, e.g. with 4-step access - 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 are provided allowing for selective monitoring of uplink cancellation indication (ULCI) occasions by UEs and allowing UEs to determine from ULCI whether canceled uplink transmission are carried on non-supplementary uplink (NUL) carriers or supplementary uplink (SUL) carriers. A UE may determine not to monitor a ULCI occasion if it does not have an uplink transmission which can be punctured by higher priority data. When the uplink transmission is dynamically scheduled, the UE may determine to monitor a ULCI occasion if the UE receives the uplink grant a certain number of symbols earlier than the ULCI occasion. The base station may configure blocks in downlink control information to indicate the UE should apply ULCI to SUL and/or NUL. The base station may configure the UE to perform different behaviors after receiving a ULCI depending on whether the portion of the uplink transmission to be canceled is on SUL or NUL. ## Claims ### Claim 1 A method of wireless communication at a user equipment (UE) comprising: receiving scheduling information for an uplink transmission from a base station, the uplink transmission for the UE being dynamically scheduled using downlink control information (DCI); and monitoring at least one uplink cancellation indication (ULCI) occasion from the base station based on the scheduling information and based on a separation in time between the scheduling information and the ULCI occasion, wherein the UE monitors the at least one ULCI occasion when the DCI is received a threshold number of symbols before the at least one ULCI occasion, and the threshold number of symbols is 1. ### Claim 2 (depends on 1) The method of claim 1, wherein the UE skips monitoring the at least one ULCI occasion when the DCI is received less than the threshold number of symbols before the at least one ULCI occasion. ### Claim 3 (depends on 1) The method of claim 1, further comprising: monitoring the at least one ULCI occasion based on the at least one ULCI occasion being valid. ### Claim 4 (depends on 1) The method of claim 1, wherein the UE skips monitoring the at least one ULCI occasion when the UE has not been scheduled for a corresponding uplink transmission. ### Claim 5 (depends on 1) The method of claim 1, wherein each ULCI occasion is associated with a corresponding set of time-domain resources for the uplink transmission, and wherein the UE monitors an ULCI occasion when the UE is scheduled for the uplink transmission in at least one symbol of the corresponding set of time-domain resources associated with the ULCI occasion. ### Claim 6 (depends on 5) The method of claim 5, wherein the corresponding set of time domain resources associated with the ULCI occasion is based on a union of multiple configured time domain resources associated with the ULCI occasion. ### Claim 7 (depends on 5) The method of claim 5, wherein the UE skips monitoring for the ULCI occasion when the UE is not scheduled for the uplink transmission in any symbol of the corresponding set of time-domain resources associated with the ULCI occasion. ### Claim 8 (depends on 5) The method of claim 5, wherein the corresponding set of time-domain resources is associated with a first ULCI occasion of the at least one ULCI occasion and overlaps in time with a second corresponding set of time-domain resources associated with a second ULCI occasion of the at least one ULCI occasion. ### Claim 9 (depends on 8) The method of claim 8, wherein if the uplink transmission is canceled in an ULCI in the first ULCI occasion associated with the corresponding set of time-domain resources that overlaps in time with the second set of time-domain resources, the UE does not monitor the second ULCI occasion associated with the second corresponding set of time-domain resources. ### Claim 10 (depends on 1) The method of claim 1, wherein the UE skips monitoring for the ULCI occasion when the UE is scheduled for the uplink transmission, and wherein the uplink transmission is limited from being punctured based on an ULCI. ### Claim 11 (depends on 10) The method of claim 10, wherein the uplink transmission comprises one of a physical random access channel (PRACH) or a physical uplink control channel (PUCCH). ### Claim 12 (depends on 1) The method of claim 1, wherein the uplink transmission is scheduled on a same cell as the ULCI occasion. ### Claim 13 (depends on 1) The method of claim 1, wherein the uplink transmission is scheduled on a different cell than the ULCI occasion. ### Claim 14 (depends on 1) The method of claim 1, wherein more than one ULCI occasion is associated with different portions of a same uplink transmission. ### Claim 15 (depends on 13) The method of claim 13, wherein if a first portion of the uplink transmission is canceled by a first ULCI in a first ULCI occasion and the UE cancels a second portion of the uplink transmission that corresponds to a second ULCI occasion, the UE does not monitor the second ULCI occasion. ### Claim 16 An apparatus for wireless communication, comprising: means for receiving scheduling information for an uplink transmission from a base station, the uplink transmission being dynamically scheduled using downlink control information (DCI); and means for monitoring at least one uplink cancellation indication (ULCI) occasion from the base station based on the scheduling information and based on a separation in time between the scheduling information and the ULCI occasion, wherein the means for monitoring is configured to monitor the at least one ULCI occasion when the DCI is received a threshold number of symbols before the at least one ULCI occasion, and the threshold number of symbols is 1. ### Claim 17 (depends on 16) The apparatus of claim 16, wherein the means for monitoring is configured to skip monitoring the at least one ULCI occasion when the DCI is received less than the threshold number of symbols before the at least one ULCI occasion. ### Claim 18 (depends on 16) The apparatus of claim 16, further comprising: means for monitoring the at least one ULCI occasion based on the at least one ULCI occasion being valid. ### Claim 19 An apparatus for wireless communication, comprising: a memory; and at least one processor coupled to the memory and configured to: receive scheduling information for an uplink transmission from a base station, the uplink transmission being dynamically scheduled using downlink control information (DCI); and monitor at least one uplink cancellation indication (ULCI) occasion from the base station based on the scheduling information and based on a separation in time between the scheduling information and the ULCI occasion, wherein the apparatus monitors the at least one ULCI occasion when the DCI is received a threshold number of symbols before the at least one ULCI occasion, and the threshold number of symbols is 1. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the at least one processor is further configured to skip monitoring the at least one ULCI occasion when the DCI is received less than the threshold number of symbols before the at least one ULCI occasion. ### Claim 21 (depends on 19) The apparatus of claim 19, wherein the at least one processor is further configured to monitor the at least one ULCI occasion based on the at least one ULCI occasion being valid. ### Claim 22 A non-transitory computer-readable medium storing computer executable code, the code when executed by a processor causes the processor to: receive scheduling information for an uplink transmission from a base station, the uplink transmission being dynamically scheduled using downlink control information (DCI); and monitor at least one uplink cancellation indication (ULCI) occasion from the base station based on the scheduling information and based on a separation in time between the scheduling information and the ULCI occasion, wherein the at least one ULCI occasion is monitored when the DCI is received a threshold number of symbols before the at least one ULCI occasion, and the threshold number of symbols is 1. ### Claim 23 A method of wireless communication at a base station comprising: scheduling a user equipment (UE) for an uplink transmission, the uplink transmission for the UE being dynamically scheduled using downlink control information (DCI); transmitting an uplink cancellation indication (ULCI) at an ULCI occasion based on whether the UE will monitor the ULCI occasion for the uplink transmission including a separation in time between the scheduling and the ULCI occasion, the ULCI cancelling at least a portion of the uplink transmission, if the UE will monitor the ULCI occasion; and transmitting the ULCI in a next ULCI occasion if the ULCI occasion is less than a threshold number of symbols after the DCI, wherein the threshold number of symbols is 1. ### Claim 24 (depends on 23) The method of claim 23, wherein the ULCI occasion is monitored when the DCI scheduling the uplink transmission is transmitted at least the threshold number of symbols before the ULCI occasion. ### Claim 25 (depends on 23) The method of claim 23, further comprising refraining from transmitting the ULCI in the ULCI occasion when the UE will not monitor the ULCI occasion. ### Claim 26 (depends on 23) The method of claim 23, wherein the ULCI occasion is associated with a corresponding set of time-domain resources for the uplink transmission being canceled. ### Claim 27 An apparatus for wireless communication, comprising: means for scheduling a user equipment (UE) for an uplink transmission, the uplink transmission for the UE being dynamically scheduled using downlink control information (DCI); means for transmitting an uplink cancellation indication (ULCI) at an ULCI occasion based on whether the UE will monitor the ULCI occasion for the uplink transmission including a separation in time between the scheduling and the ULCI occasion, the ULCI cancelling at least a portion of the uplink transmission, if the UE will monitor the ULCI occasion; and means for transmitting the ULCI in a next ULCI occasion if the ULCI occasion is less than a threshold number of symbols after the DCI, wherein the threshold number of symbols is 1. ### Claim 28 (depends on 27) The apparatus of claim 27, wherein the ULCI occasion is monitored when the DCI scheduling the uplink transmission is transmitted at least the threshold number of symbols before the ULCI occasion. ### Claim 29 An apparatus for wireless communication, comprising: a memory; and at least one processor coupled to the memory and configured to: schedule a user equipment (UE) for an uplink transmission, the uplink transmission for the UE being dynamically scheduled using downlink control information (DCI); transmit an uplink cancellation indication (ULCI) at an ULCI occasion based on whether the UE will monitor the ULCI occasion for the uplink transmission including a separation in time between the scheduling and the ULCI occasion, the ULCI cancelling at least a portion of the uplink transmission, if the UE will monitor the ULCI occasion; and transmit the ULCI in a next ULCI occasion if the ULCI occasion is less than a threshold number of symbols after the DCI, wherein the threshold number of symbols is 1. ### Claim 30 (depends on 29) The apparatus of claim 29, wherein the ULCI occasion is monitored when the DCI scheduling the uplink transmission is transmitted at least the threshold number of symbols before the ULCI occasion. ### Claim 31 A non-transitory computer-readable medium storing computer executable code, the code when executed by a processor causes the processor to: schedule a user equipment (UE) for an uplink transmission, the uplink transmission for the UE being dynamically scheduled using downlink control information (DCI); transmit an uplink cancellation indication (ULCI) at an ULCI occasion based on whether the UE will monitor the ULCI occasion for the uplink transmission including a separation in time between the scheduling and the ULCI occasion, the ULCI cancelling at least a portion of the uplink transmission, if the UE will monitor the ULCI occasion; and transmit the ULCI in a next ULCI occasion if the ULCI occasion is less than a threshold number of symbols after the DCI, wherein the threshold number of symbols is 1.