# US 12,003,984 B2 · Multi-level slot format indicator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,003,984 B2 - Document ID: US12003984B2 - Status: Granted - Kind: B2 - Application number: 16/906,507 - Filed: 2020-06-19 - Published: 2020-12-10 - Granted: 2024-06-04 - Earliest claimed: 2017-12-19 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Jing Sun; Xiaoxia Zhang; Heechoon Lee - Web page: https://patentgrep.com/patent/US12003984B2 ## CPC - H04W 24/08: Testing, {supervising or monitoring} using real traffic - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 5/0096: {Indication of changes in allocation} - H04L 5/1469: {using time-sharing} - H04W 48/12: using downlink control channel - 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 5/001: {the frequencies being arranged in component carriers} - 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 Methods, systems, and devices for wireless communications are described. A base station may transmit, and a user equipment (UE) may receive a first slot format indicator (SFI) during a first monitoring period for a set of slots associated with the first monitoring period. The base station may transmit, and the UE may receive a second SFI during a second monitoring period that is shorter in duration than the first monitoring period and occurs within the first monitoring period, the second SFI comprising an indication of slot formats for a subset of the slots associated with the second monitoring period. The base station and the UE may perform wireless communications over the subset of slots based at least in part on the first SFI and the second SFI. ## Claims ### Claim 1 A method for wireless communication, comprising: receiving a common downlink control information message on a group common physical downlink control channel, wherein the common downlink control information message comprises a slot format configuration comprising a first slot format indicator and a second slot format indicator different from the first slot format indicator, and an identification of the first slot format indicator or the second slot format indicator, or both; and performing the wireless communication based at least in part on the first slot format indicator and the second slot format indicator. ### Claim 2 (depends on 1) The method of claim 1, further comprising: receiving, in a group common downlink control information message field of the common downlink control information message, the slot format configuration comprising the first slot format indicator and the second slot format indicator. ### Claim 3 (depends on 2) The method of claim 2, further comprising: receiving a slot format indicator field in the group common downlink control information message field of the common downlink control information message, wherein the identification comprises a set of bits associated with the slot format indicator field that identifies the first slot format indicator or the second slot format indicator, or both. ### Claim 4 (depends on 1) The method of claim 1, further comprising: determining a transmission format based at least in part on the slot format configuration, wherein the transmission format comprises a downlink resource, an uplink resource, or a flexible resource, or a combination thereof for the wireless communication. ### Claim 5 (depends on 1) The method of claim 1, further comprising: jointly decoding the first slot format indicator and a second slot format indicator to determine the first slot format indicator and the second slot format indicator received in the common downlink control information message. ### Claim 6 (depends on 1) The method of claim 1, further comprising: determining a set of resources associated with the slot format configuration; determining a period for the wireless communication based at least in part on the set of resources associated with the slot format configuration, wherein performing the wireless communication comprises: receiving or transmitting the wireless communication using the set of resources during the period. ### Claim 7 (depends on 6) The method of claim 6, further comprising: determining a first subset of resources associated with the first slot format indicator; and determining a second subset of resources associated with the second slot format indicator, wherein performing the wireless communication comprises: receiving or transmitting the wireless communication using the first subset of resources or the second subset of resources, or both, during the period. ### Claim 8 (depends on 6) The method of claim 6, wherein the set of resources comprises one or more symbols or slots. ### Claim 9 (depends on 1) The method of claim 1, wherein the first slot format indicator and the second slot format indicator correspond to the same radio network temporary identifier. ### Claim 10 A method for wireless communication, comprising: transmitting a common downlink control information message on a group common physical downlink control channel, wherein the common downlink control information message comprises a slot format configuration comprising a first slot format indicator and a second slot format indicator different from the first slot format indicator, and an identification of the first slot format indicator or the second slot format indicator, or both; and performing the wireless communication based at least in part on the first slot format indicator and the second slot format indicator. ### Claim 11 (depends on 10) The method of claim 10, further comprising: transmitting, in a group common downlink control information message field of the common downlink control information message, the slot format configuration comprising the first slot format indicator and the second slot format indicator. ### Claim 12 (depends on 11) The method of claim 11, further comprising: transmitting a slot format indicator field in the group common downlink control information message field of the common downlink control information message, wherein the identification comprises a set of bits associated with the slot format indicator field that identifies the first slot format indicator or the second slot format indicator, or both. ### Claim 13 (depends on 10) The method of claim 10, further comprising: assigning a transmission format based at least in part on the slot format configuration, wherein the transmission format comprises a downlink resource, an uplink resource, or a flexible resource, or a combination thereof for the wireless communication. ### Claim 14 (depends on 10) The method of claim 10, further comprising: jointly encoding the first slot format indicator and a second slot format indicator to determine the first slot format indicator and the second slot format indicator received in the common downlink control information message. ### Claim 15 (depends on 10) The method of claim 10, further comprising: allocating a set of resources associated with the set of slot format indicators; allocating a period for the wireless communication based at least in part on the set of resources associated with the slot format configuration, wherein performing the wireless communication comprises: receiving or transmitting the wireless communication using the set of resources during the period. ### Claim 16 (depends on 15) The method of claim 15, further comprising: allocating a first subset of resources associated with the first slot format indicator; and allocating a second subset of resources associated with the second slot format indicator, wherein performing the wireless communication comprises: receiving or transmitting the wireless communication using the first subset of resources or the second subset of resources, or both, during the period. ### Claim 17 (depends on 15) The method of claim 15, wherein the set of resources comprises one or more symbols or slots. ### Claim 18 (depends on 10) The method of claim 10, wherein the first slot format indicator and the second slot format indicator correspond to the same radio network temporary identifier. ### Claim 19 An apparatus for wireless communication, comprising: a processor; memory in electronic communication with the processor; and instructions stored in the memory, wherein the instructions are executable by the processor to: receive a common downlink control information message on a group common physical downlink control channel, wherein the common downlink control information message comprises a slot format configuration comprising a first slot format indicator and a second slot format indicator different from the first slot format indicator, and an identification of the first slot format indicator or the second slot format indicator, or both; and perform the wireless communication based at least in part on the first slot format indicator and the second slot format indicator. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the instructions are further executable by the processor to: receive, in a group common downlink control information message field of the common downlink control information message, the slot format configuration comprising the first slot format indicator and the second slot format indicator. ### Claim 21 (depends on 20) The apparatus of claim 20, wherein the instructions are further executable by the processor to: receive a slot format indicator field in the group common downlink control information message field of the common downlink control information message, wherein the identification comprises a set of bits associated with the slot format indicator field that identifies the first slot format indicator or the second slot format indicator, or both. ### Claim 22 (depends on 19) The apparatus of claim 19, wherein the instructions are further executable by the processor to: determine a transmission format based at least in part on the slot format configuration, wherein the transmission format comprises a downlink resource, an uplink resource, or a flexible resource, or a combination thereof for the wireless communication. ### Claim 23 (depends on 19) The apparatus of claim 19, wherein the instructions are further executable by the processor to: jointly decode the first slot format indicator and a second slot format indicator to determine the first slot format indicator and the second slot format indicator received in the common downlink control information message. ### Claim 24 (depends on 19) The apparatus of claim 19, wherein the instructions are further executable by the processor to: determine a set of resources associated with the slot format configuration; determine a period for the wireless communication based at least in part on the set of resources associated with the slot format configuration, wherein performing the wireless communication comprises: receive or transmit the wireless communication using the set of resources during the period. ### Claim 25 (depends on 24) The apparatus of claim 24, wherein the instructions are further executable by the processor to: determine a first subset of resources associated with the first slot format indicator; and determine a second subset of resources associated with the second slot format indicator, wherein performing the wireless communication comprises: receive or transmit the wireless communication using the first subset of resources or the second subset of resources, or both, during the period. ### Claim 26 (depends on 24) The apparatus of claim 24, wherein the set of resources comprises one or more symbols or slots. ### Claim 27 (depends on 19) The apparatus of claim 19, wherein the first slot format indicator and the second slot format indicator correspond to the same radio network temporary identifier. ### Claim 28 An apparatus for wireless communication, comprising: a processor; memory in electronic communication with the processor; and instructions stored in the memory, wherein the instructions are executable by the processor to: transmit a common downlink control information message on a group common physical downlink control channel, wherein the common downlink control information message comprises a slot format configuration comprising a first slot format indicator and a second slot format indicator different from the first slot format indicator, and an identification of the first slot format indicator or the second slot format indicator, or both; and perform the wireless communication based at least in part on the first slot format indicator and the second slot format indicator. ### Claim 29 (depends on 28) The apparatus of claim 28, wherein the instructions are further executable by the processor to: transmit, in a group common downlink control information message field of the common downlink control information message, the slot format configuration comprising the first slot format indicator and the second slot format indicator. ### Claim 30 (depends on 29) The apparatus of claim 29, wherein the instructions are further executable by the processor to: transmit a slot format indicator field in the group common downlink control information message field of the common downlink control information message, wherein the identification comprises a set of bits associated with the slot format indicator field that identifies the first slot format indicator or the second slot format indicator, or both.