# US 2021/0243783 A1 · Candidate transmission configuration information states for slot aggregation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243783 A1 - Document ID: US20210243783A1 - Status: Published application - Kind: A1 - Application number: 17/236,777 - Filed: 2021-04-21 - Published: 2021-08-05 - Earliest claimed: 2018-08-30 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Yan Zhou; Tao Luo; Makesh Pravin John Wilson; Kiran Venugopal; Tianyang Bai - Web page: https://patentgrep.com/patent/US20210243783A1 ## CPC - H04L 5/0023: {Time-frequency-space} - H04W 72/1273: of downlink data flows - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 76/20: Manipulation of established connections - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - 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 determine, during a multi-slot downlink transmission, that a mapping from a transmission configuration information (TCI) state index to a first TCI state configuration has changed to a second TCI state configuration. The UE may select, based at least in part on the determined change, the first TCI state configuration or the second TCI state configuration to use for at least a portion of the multi-slot downlink transmission. The UE may receive the multi-slot downlink transmission during one or more slots according to the selected TCI state configuration and the TCI state index. ## Claims ### Claim 1 A method for wireless communication at a user equipment (UE), comprising: determining, during an uplink transmission, that a mapping from a resource index to a first spatial relation has changed to being mapped to a second spatial relation; selecting, based at least in part on the determined change, the first spatial relation or the second spatial relation to use for the uplink transmission; and transmitting the uplink transmission according to the selected spatial relation and the resource index. ### Claim 2 (depends on 1) The method of claim 1, wherein at least the first spatial relation and the spatial relation are activated spatial relations, and the activated spatial relations remain unchanged during each slot of a multi-slot uplink transmission. ### Claim 3 (depends on 1) The method of claim 1, wherein at least the first spatial relation and the spatial relation are activated spatial relations, and the activated spatial relations are determined based on an initial slot of a multi-slot uplink transmission. ### Claim 4 (depends on 1) The method of claim 1, further comprising: determining that a spatial relation is configured at the UE that identifies a plurality of aggregated uplink transmissions for two or more consecutive slots of a multi-slot uplink transmission; and applying a same spatial relation for spatial transmission parameters for each of the two or more consecutive slots. ### Claim 5 (depends on 1) The method of claim 1, wherein the uplink transmission comprises a single slot uplink transmission, further comprising: selecting the second spatial relation for the uplink transmission. ### Claim 6 (depends on 1) The method of claim 1, further comprising: selecting the first spatial relation to use during each slot of the uplink transmission. ### Claim 7 (depends on 6) The method of claim 6, wherein the first spatial relation is determined based at least in part on a first slot of the uplink transmission. ### Claim 8 (depends on 6) The method of claim 6, wherein the first spatial relation is determined based at least in part on a slot containing a signal scheduling the uplink transmission. ### Claim 9 (depends on 1) The method of claim 1, further comprising: selecting the first spatial relation to use during a first subset of slots of the uplink transmission; and selecting the second spatial relation to use during a second subset of slots of the uplink transmission, the first subset of slots occurring before the determined change and the second subset of slots occurring after the determined change. ### Claim 10 (depends on 1) The method of claim 1, further comprising: determining that the determined change occurs during the uplink transmission; and refraining, based at least in part on the determined change occurring during the uplink transmission, from implementing the determined change. ### Claim 11 (depends on 1) The method of claim 1, further comprising: receiving a signal reconfiguring a set of candidate resource indices from a first set of spatial relations to a second set of spatial relations, wherein the determined change is based at least in part on the signal. ### Claim 12 (depends on 11) The method of claim 11, wherein the signal comprises at least one of a medium access control (MAC) control element (CE), a radio resource control (RRC) signal, a downlink control information (DCI) field, or a combination thereof. ### Claim 13 (depends on 11) The method of claim 11, wherein the resource index comprises at least one of a sounding reference signal (SRS) index, a physical uplink control channel (PUCCH) resource, or a combination thereof. ### Claim 14 (depends on 1) The method of claim 1, wherein the uplink transmission comprises at least one of a data transmission, a control transmission, a reference signal transmission, or a combination thereof. ### Claim 15 A method for wireless communication at a user equipment (UE), comprising: receiving a downlink control information (DCI) scheduling a multi-slot downlink transmission for the UE, the DCI indicating a code point set to a value that corresponds to a transmission configuration information (TCI) state index, the TCI state index mapped to a first TCI state configuration; determining, during the multi-slot downlink transmission, that the mapping of the TCI state index has changed from the first TCI state configuration to a second TCI state configuration; selecting, based at least in part on the determined change, the first TCI state configuration to use during each slot of the multi-slot downlink transmission; and receiving the multi-slot downlink transmission according to the first TCI state configuration. ### Claim 16 (depends on 15) The method of claim 15, further comprising: receiving a signal reconfiguring a set of activated TCI state indices from a first set of TCI state configurations to a second set of TCI state configurations, wherein the determined change is based at least in part on the signal. ### Claim 17 (depends on 16) The method of claim 16, wherein the signal comprises at least one of a medium access control (MAC) control element (CE), a radio resource control (RRC) signal, a second DCI, or a combination thereof. ### Claim 18 (depends on 15) The method of claim 15, wherein the first TCI state configuration is determined based at least in part on a first slot occurring after decoding the DCI scheduling the multi-slot downlink transmission. ### Claim 19 (depends on 15) The method of claim 15, wherein the first TCI state configuration and the second TCI state configuration are activated TCI states, and the activated TCI states remain unchanged during each slot of the multi-slot downlink transmission. ### Claim 20 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 downlink control information (DCI) scheduling a multi-slot downlink transmission for the UE, the DCI indicating a code point set to a value that corresponds to a transmission configuration information (TCI) state index, the TCI state index mapped to a first TCI state configuration; determine, during the multi-slot downlink transmission, that the mapping of the TCI state index has changed from the first TCI state configuration to a second TCI state configuration; select, based at least in part on the determined change, the first TCI state configuration to use during each slot of the multi-slot downlink transmission; and receive the multi-slot downlink transmission according to the first TCI state configuration. ### Claim 21 (depends on 20) The apparatus of claim 20, wherein the instructions are further executable by the processor to cause the apparatus to: receive a signal reconfiguring a set of activated TCI state indices from a first set of TCI state configurations to a second set of TCI state configurations, wherein the determined change is based at least in part on the signal. ### Claim 22 (depends on 21) The apparatus of claim 21, wherein the signal comprises at least one of a medium access control (MAC) control element (CE), a radio resource control (RRC) signal, a second DCI, or a combination thereof. ### Claim 23 (depends on 20) The apparatus of claim 20, wherein the first TCI state configuration is determined based at least in part on a first slot occurring after decoding the DCI scheduling the multi-slot downlink transmission. ### Claim 24 (depends on 20) The apparatus of claim 20, wherein the first TCI state configuration and the second TCI state configuration are activated TCI states, and the activated TCI states remain unchanged during each slot of the multi-slot downlink transmission.