# US 11,910,378 B2 · Downlink control information size configuration in cross-carrier scheduling scenarios > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,378 B2 - Document ID: US11910378B2 - Status: Granted - Kind: B2 - Application number: 17/443,924 - Filed: 2021-07-28 - Published: 2022-02-03 - Granted: 2024-02-20 - Earliest claimed: 2020-07-30 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Kazuki Takeda; Alberto Rico Alvarino; Le Liu - Web page: https://patentgrep.com/patent/US11910378B2 ## CPC - H04L 5/001: {the frequencies being arranged in component carriers} - H04W 72/1263: Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows - H04W 24/08: Testing, {supervising or monitoring} using real traffic - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - 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 Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine, for a secondary cell and a primary cell where cross-carrier scheduling is to occur from the secondary cell to the primary cell, whether a quantity of downlink control information (DCI) sizes for a set of DCIs that the UE monitors satisfies a threshold, wherein the threshold is a per scheduling cell per scheduled cell threshold or a per scheduled cell threshold. The UE may selectively perform a DCI size alignment procedure to adjust a DCI size configuration based at least in part on whether the quantity of DCI sizes satisfies the threshold. The UE may monitor for the set of DCIs based at least in part on the DCI size configuration. Numerous other aspects are provided. ## Claims ### Claim 1 A user equipment (UE) for wireless communication, comprising: a memory; and one or more processors, coupled to the memory, configured to: determine, for a secondary cell and a primary cell where self-scheduling is to occur by the primary cell and cross-carrier scheduling is to occur from the secondary cell to the primary cell, whether a total quantity of downlink control information (DCI) sizes for a set of DCIs across the primary cell and the secondary cell that the UE monitors satisfies a threshold, wherein the threshold is a per scheduled cell threshold; selectively perform a DCI size alignment procedure to adjust a DCI size configuration based at least in part on whether the total quantity of DCI sizes satisfies the threshold; and monitor resources in the primary cell and the secondary cell for the set of DCIs based at least in part on the DCI size configuration. ### Claim 2 (depends on 1) The UE of claim 1, wherein the threshold includes a single threshold for the primary cell and the secondary cell. ### Claim 3 (depends on 2) The UE of claim 2, wherein the one or more processors, to selectively perform the DCI size alignment procedure, are configured to: perform the DCI size alignment procedure based at least in part on satisfying the single threshold. ### Claim 4 (depends on 3) The UE of claim 3, wherein the one or more processors, to perform the DCI size alignment procedure, are configured to: add, based at least in part on a first DCI in the set of DCIs being smaller than a second DCI in the set of DCIs, one or more zero padding bits to the first DCI until the first DCI is a same size as the second DCI. ### Claim 5 (depends on 2) The UE of claim 2, wherein the single threshold is shared across scheduling cells of a scheduled cell. ### Claim 6 (depends on 2) The UE of claim 2, wherein a DCI size budget associated with the single threshold is split between scheduling cells for a scheduled cell in accordance with a statically configured or semi-statically configured split configuration. ### Claim 7 (depends on 1) The UE of claim 1, wherein the per scheduled cell threshold corresponds to a threshold quantity of different DCI sizes in the set of DCIs, across the primary cell and the secondary cell, that schedule data on the primary cell. ### Claim 8 A method of wireless communication performed by a user equipment (UE), comprising: determining, for a secondary cell and a primary cell where self-scheduling is to occur by the primary cell and cross-carrier scheduling is to occur from the secondary cell to the primary cell, whether a total quantity of downlink control information (DCI) sizes for a set of DCIs across the primary cell and the secondary cell that the UE monitors satisfies a threshold, wherein the threshold is a per scheduled cell threshold; selectively performing a DCI size alignment procedure to adjust a DCI size configuration based at least in part on whether the total quantity of DCI sizes satisfies the threshold; and monitoring resources in the primary cell and the secondary cell for the set of DCIs based at least in part on the DCI size configuration. ### Claim 9 (depends on 8) The method of claim 8, wherein the threshold includes a single threshold for the primary cell and the secondary cell. ### Claim 10 (depends on 9) The method of claim 9, wherein selectively performing the DCI size alignment procedure comprises: performing the DCI size alignment procedure based at least in part on satisfying the single threshold. ### Claim 11 (depends on 10) The method of claim 10, wherein performing the DCI size alignment procedure comprises: adding, based at least in part on a first DCI in the set of DCIs being smaller than a second DCI in the set of DCIs, one or more zero padding bits to the first DCI until the first DCI is a same size as the second DCI. ### Claim 12 (depends on 9) The method of claim 9, wherein the single threshold is shared across scheduling cells of a scheduled cell. ### Claim 13 (depends on 9) The method of claim 9, wherein a DCI size budget associated with the single threshold is split between scheduling cells for a scheduled cell in accordance with a statically configured or semi-statically configured split configuration. ### Claim 14 (depends on 8) The method of claim 8, wherein the per scheduled cell threshold corresponds to a threshold quantity of different DCI sizes in the set of DCIs, across the primary cell and the secondary cell, that schedule data on the primary cell. ### Claim 15 A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising: one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to: determine, for a secondary cell and a primary cell where self-scheduling is to occur by the primary cell and cross-carrier scheduling is to occur from the secondary cell to the primary cell, whether a total quantity of downlink control information (DCI) sizes for a set of DCIs across the primary cell and the secondary cell that the UE monitors satisfies a threshold, wherein the threshold is a per scheduled cell threshold; selectively perform a DCI size alignment procedure to adjust a DCI size configuration based at least in part on whether the total quantity of DCI sizes satisfies the threshold; and monitor resources in the primary cell and the secondary cell for the set of DCIs based at least in part on the DCI size configuration. ### Claim 16 (depends on 15) The non-transitory computer-readable medium of claim 15, wherein the threshold includes a single threshold for the primary cell and the secondary cell. ### Claim 17 (depends on 16) The non-transitory computer-readable medium of claim 16, wherein the one or more instructions, that cause the UE to selectively perform the DCI size alignment procedure, cause the UE to: perform the DCI size alignment procedure based at least in part on satisfying the single threshold. ### Claim 18 (depends on 17) The non-transitory computer-readable medium of claim 17, wherein the one or more instructions, that cause the UE to perform the DCI size alignment procedure, cause the UE to: add, based at least in part on a first DCI in the set of DCIs being smaller than a second DCI in the set of DCIs, one or more zero padding bits to the first DCI until the first DCI is a same size as the second DCI. ### Claim 19 (depends on 16) The non-transitory computer-readable medium of claim 16, wherein the single threshold is shared across scheduling cells of a scheduled cell. ### Claim 20 (depends on 16) The non-transitory computer-readable medium of claim 16, wherein a DCI size budget associated with the single threshold is split between scheduling cells for a scheduled cell in accordance with a statically configured or semi-statically configured split configuration. ### Claim 21 (depends on 15) The non-transitory computer-readable medium of claim 15, wherein the per scheduled cell threshold corresponds to a threshold quantity of different DCI sizes in the set of DCIs, across the primary cell and the secondary cell, that schedule data on the primary cell. ### Claim 22 An apparatus for wireless communication, comprising: means for determining, for a secondary cell and a primary cell where self-scheduling is to occur by the primary cell and cross-carrier scheduling is to occur from the secondary cell to the primary cell, whether a total quantity of downlink control information (DCI) sizes for a set of DCIs across the primary cell and the secondary cell that the UE monitors satisfies a threshold, wherein the threshold is a per scheduled cell threshold; means for selectively performing a DCI size alignment procedure to adjust a DCI size configuration based at least in part on whether the total quantity of DCI sizes satisfies the threshold; and means for monitoring resources in the primary cell and the secondary cell for the set of DCIs based at least in part on the DCI size configuration. ### Claim 23 (depends on 22) The apparatus of claim 22, wherein the threshold includes a single threshold for the primary cell and the secondary cell. ### Claim 24 (depends on 23) The apparatus of claim 23, wherein the means for selectively performing the DCI size alignment procedure comprises: means for performing the DCI size alignment procedure based at least in part on satisfying the single threshold. ### Claim 25 (depends on 23) The apparatus of claim 23, wherein the single threshold is shared across scheduling cells of a scheduled cell. ### Claim 26 (depends on 23) The apparatus of claim 23, wherein a DCI size budget associated with the single threshold is split between scheduling cells for a scheduled cell in accordance with a statically configured or semi-statically configured split configuration. ### Claim 27 (depends on 23) The apparatus of claim 23, wherein the means for performing the DCI size alignment procedure comprises: means for adding, based at least in part on a first DCI in the set of DCIs being smaller than a second DCI in the set of DCIs, one or more zero padding bits to the first DCI until the first DCI is a same size as the second DCI. ### Claim 28 (depends on 22) The apparatus of claim 22, wherein the per scheduled cell threshold corresponds to a threshold quantity of different DCI sizes in the set of DCIs, across the primary cell and the secondary cell, that schedule data on the primary cell.