# US 2021/0345317 A1 · Downlink control channel monitoring capabilities > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0345317 A1 - Document ID: US20210345317A1 - Status: Published application - Kind: A1 - Application number: 17/332,620 - Filed: 2021-05-27 - Published: 2021-11-04 - Earliest claimed: 2018-11-02 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Seyedkianoush Hosseini; Jing Jiang; Wanshi Chen - Web page: https://patentgrep.com/patent/US20210345317A1 ## CPC - H04W 48/16: Discovering, processing access restriction or access information - H04W 72/51: based on terminal or device properties - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 24/02: Arrangements for optimising operational condition - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 1/1854: {Scheduling and prioritising arrangements} - H04L 5/0058: {Allocation criteria} - 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. In some systems, a user equipment (UE) may monitor a downlink transmission for control information during a set of physical downlink control channel (PDCCH) monitoring occasions. The UE may determine a first configuration for the set of PDCCH monitoring occasions during a slot of the downlink transmission and a threshold number of PDCCH candidates and/or a threshold number of non-overlapping CCEs within the slot. In some cases, the UE may also determine a threshold number of PDCCH candidates and/or non-overlapping control channel elements (CCEs) within a single PDCCH monitoring occasion. The threshold number of PDCCH candidates and non-overlapping CCEs may be fixed, based on the number of PDCCH monitoring occasions during the slot, based on a processing capability of the UE, or a combination thereof. The UE may decode control information contained in one or more of the PDCCH monitoring occasions. ## Claims ### Claim 1 A method for wireless communication at a base station, comprising: transmitting a first configuration for a set of physical downlink control channel (PDCCH) monitoring occasions during a slot, the first configuration indicating a threshold number of PDCCH candidates, or a threshold number of non-overlapping control channel elements (CCEs), or a combination thereof, within each PDCCH monitoring occasion of the set of PDCCH monitoring occasions; transmitting a second configuration for the set of PDCCH monitoring occasions, the second configuration indicating a threshold number of PDCCH candidates, or a threshold number of non-overlapping CCEs, or a combination thereof, within the slot; and transmitting, in accordance with the first configuration and the second configuration, control information within at least one PDCCH monitoring occasion of the set of PDCCH monitoring occasions. ### Claim 2 (depends on 1) The method of claim 1, wherein the threshold number of PDCCH candidates, or the threshold number of non-overlapping CCEs, or both, within each PDCCH monitoring occasion is fixed. ### Claim 3 (depends on 1) The method of claim 1, further comprising: determining a threshold number of physical downlink shared channels (PDSCHs) within the slot based at least in part on a number of PDCCH decoding occasions within each PDCCH monitoring occasion of the set of PDCCH monitoring occasions; and transmitting data in one or more PDSCHs within the slot based at least in part on determining the threshold number of PDSCHs. ### Claim 4 (depends on 3) The method of claim 3, wherein the threshold number of PDCCH candidates, or the threshold number of non-overlapping CCEs, or a combination thereof, is based at least in part on the threshold number of PDSCHs. ### Claim 5 (depends on 1) The method of claim 1, further comprising: transmitting a physical downlink shared channel (PDSCH) within the slot based at least in part on a threshold associated with a transport block size (TBS) for the PDSCH, a rank for the PDSCH, a modulation and coding scheme (MCS) for the PDSCH, or a number of component carriers (CCs) for the PDSCH, or a combination thereof. ### Claim 6 A method for wireless communication at a base station, comprising: transmitting information indicating a threshold number of physical downlink control channel (PDCCH) candidates, or a threshold number of non-overlapping control channel elements (CCEs), or a combination thereof, within each PDCCH monitoring occasion in a set of PDCCH monitoring occasions, wherein the threshold number of PDCCH candidates, or the threshold number of non-overlapping CCEs, or both, is based at least in part on a number of PDCCH monitoring occasions in the set of PDCCH monitoring occasions; and transmitting, in accordance with the threshold number of PDCCH candidates, or the threshold number of non-overlapping CCEs, or both, control information within at least one PDCCH monitoring occasion of the set of PDCCH monitoring occasions. ### Claim 7 (depends on 6) The method of claim 6, wherein the threshold number of PDCCH candidates, or the threshold number of non-overlapping CCEs, or both, within each PDCCH monitoring occasion is inversely proportional to the number of PDCCH monitoring occasions. ### Claim 8 (depends on 6) The method of claim 6, further comprising: transmitting data in a physical downlink shared channel (PDSCH) within a slot based at least in part on a threshold associated with a transport block size (TBS) for the PDSCH, a rank for the PDSCH, a modulation and coding scheme (MCS) for the PDSCH, or a number of component carriers (CCs) for the PDSCH, or a combination thereof. ### Claim 9 (depends on 6) The method of claim 6, further comprising: determining a threshold number of physical downlink shared channels (PDSCHs) within a slot based at least in part on a number of PDCCH decoding occasions within each PDCCH monitoring occasion of the set of PDCCH monitoring occasions; and transmitting data in one or more PDSCHs within the slot based at least in part on determining the threshold number of PDSCHs. ### Claim 10 (depends on 9) The method of claim 9, wherein the threshold number of PDCCH candidates, or the threshold number of non-overlapping CCEs, or a combination thereof, is based at least in part on the threshold number of PDSCHs. ### Claim 11 A method for wireless communication at a base station, comprising: transmitting information indicating a threshold number of physical downlink control channel (PDCCH) candidates, or a threshold number of non-overlapping control channel elements (CCEs), or a combination thereof, within each PDCCH monitoring occasion of a set of PDCCH monitoring occasions, wherein the threshold number of PDCCH candidates, or the threshold number of non-overlapping CCEs, or both, is based at least in part on a user equipment (UE) capability; and transmitting, in accordance with the threshold number of PDCCH candidates, or the threshold number of non-overlapping CCEs, or both, control information within at least one PDCCH monitoring occasion of the set of PDCCH monitoring occasions. ### Claim 12 (depends on 11) The method of claim 11, wherein the threshold number of PDCCH candidates, or the threshold number of non-overlapping CCEs, or both, within each PDCCH monitoring occasion is proportional to a number of PDCCH monitoring occasions within a slot. ### Claim 13 (depends on 11) The method of claim 11, further comprising: receiving, from a UE, an indication of the UE capability; and identifying, based at least in part on the UE capability, a set of parameters corresponding to the threshold number of PDCCH candidates, or the threshold number of non-overlapping CCEs, or both, wherein the determining is based at least in part on the identifying. ### Claim 14 (depends on 13) The method of claim 13, wherein the UE capability comprises a maximum number of PDCCH monitoring occasions supported by a UE. ### Claim 15 (depends on 11) The method of claim 11, further comprising: determining a threshold number of physical downlink shared channels (PDSCHs) within a slot based at least in part on a number of PDCCH decoding occasions within each PDCCH monitoring occasion of the set of PDCCH monitoring occasions; and transmitting data in one or more PDSCHs within the slot based at least in part on determining the threshold number of PDSCHs. ### Claim 16 (depends on 15) The method of claim 15, wherein the threshold number of PDCCH candidates, or the threshold number of non-overlapping CCEs, or a combination thereof, is based at least in part on the threshold number of PDSCHs. ### Claim 17 (depends on 11) The method of claim 11, further comprising: transmitting a physical downlink shared channel (PDSCH) within a slot based at least in part on a threshold associated with a transport block size (TBS) for the PDSCH, a rank for the PDSCH, a modulation and coding scheme (MCS) for the PDSCH, or a number of component carriers (CCs) for the PDSCH, or a combination thereof. ### Claim 18 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 first configuration for a set of physical downlink control channel (PDCCH) monitoring occasions during a slot, the first configuration indicating a threshold number of PDCCH candidates, or a threshold number of non-overlapping control channel elements (CCEs), or a combination thereof, within each PDCCH monitoring occasion of the set of PDCCH monitoring occasions; transmit a second configuration for transmitting the set of PDCCH monitoring occasions, the second configuration indicating a threshold number of PDCCH candidates, or a threshold number of non-overlapping CCEs, or a combination thereof, within the slot; transmit, in accordance with the first configuration and the second configuration, control information within at least one PDCCH monitoring occasion of the set of PDCCH monitoring occasions. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein the threshold number of PDCCH candidates, or the threshold number of non-overlapping control channel elements (CCEs), or both, within each PDCCH monitoring occasion is fixed. ### Claim 20 (depends on 18) The apparatus of claim 18, wherein the instructions are further executable by the processor to cause the apparatus to: determine a threshold number of physical downlink shared channels (PDSCHs) within the slot based at least in part on a number of PDCCH decoding occasions within each PDCCH monitoring occasion of the set of PDCCH monitoring occasions; and transmit data in one or more PDSCHs within the slot based at least in part on determining the threshold number of PDSCHs. ### Claim 21 (depends on 20) The apparatus of claim 20, wherein the threshold number of PDCCH candidates, or the threshold number of non-overlapping CCEs, or a combination thereof, is based at least in part on the threshold number of PDSCHs. ### Claim 22 (depends on 18) The apparatus of claim 18, wherein the instructions are further executable by the processor to cause the apparatus to: transmit a physical downlink shared channel (PDSCH) within the slot based at least in part on a threshold associated with a transport block size (TBS) for the PDSCH, a rank for the PDSCH, a modulation and coding scheme (MCS) for the PDSCH, or a number of component carriers (CCs) for the PDSCH, or a combination thereof.