# US 2019/0174518 A1 · Dynamic downlink control information timing indications in new radio > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0174518 A1 - Document ID: US20190174518A1 - Status: Published application - Kind: A1 - Application number: 16/206,633 - Filed: 2018-11-30 - Published: 2019-06-06 - Earliest claimed: 2017-12-04 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Jing JIANG; Yang YANG; Renqiu WANG; Yi HUANG - Web page: https://patentgrep.com/patent/US20190174518A1 ## CPC - H04W 72/1268: of uplink data flows - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04L 5/0082: {at predetermined intervals} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 76/27: Transitions between radio resource control [RRC] states - H04B 7/0413: MIMO systems - H04L 5/1469: {using time-sharing} - H04W 72/0446: Resources in time domain, e.g. slots or frames - 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) - H04B: TRANSMISSION ## Abstract In some aspects, a user equipment (UE) may receive downlink control information (DCI) that includes a timing value indicating a timing of an opportunity, subsequent to reception of the DCI, for transmission or reception of a communication corresponding to the DCI. The UE may determine an uplink opportunity or a downlink opportunity for transmission or reception of the communication based at least in part on the timing of the opportunity. A counter for determining the uplink opportunity may be incremented only for transmission time intervals (TTIs) in which the UE is allowed to transmit the communication in an uplink channel. A counter for determining the downlink opportunity may be incremented only for TTIs in which the UE can expect to receive the communication in a downlink channel. The UE may transmit or receive the communication in the uplink opportunity or the downlink opportunity. Other aspects are disclosed. ## Claims ### Claim 1 A method of wireless communication performed by a user equipment (UE), comprising: receiving downlink control information (DCI) that includes a timing value indicating a timing of an opportunity, subsequent to reception of the DCI, for transmission or reception of a communication corresponding to the DCI; determining an uplink opportunity for transmission of the communication or a downlink opportunity for reception of the communication based at least in part on the timing of the opportunity, wherein a counter for determining the uplink opportunity is incremented only for transmission time intervals (TTIs) in which the UE is allowed to transmit the communication in an uplink channel, or wherein a counter for determining the downlink opportunity is incremented only for TTIs in which the UE can expect to receive the communication in a downlink channel; and transmitting or receiving the communication in the uplink opportunity or the downlink opportunity. ### Claim 2 (depends on 1) The method of claim 1, wherein the TTIs are slots, mini-slots, or symbols. ### Claim 3 (depends on 1) The method of claim 1, wherein the timing of the opportunity represents a number of slots that include an opportunity, a number of mini-slots that include an opportunity, or a number of symbols that include an opportunity. ### Claim 4 (depends on 1) The method of claim 1, wherein the opportunity refers to a unit of slot, mini-slot, or symbol that is possible for the UE to transmit or receive in a corresponding direction in the unit. ### Claim 5 (depends on 1) The method of claim 1, wherein the uplink opportunity or the downlink opportunity is determined based at least in part on a slot configuration indicated to the UE. ### Claim 6 (depends on 5) The method of claim 5, wherein the slot configuration is indicated in at least one of: a radio resource control (RRC) message regarding uplink/downlink and flexible symbol configuration, DCI, or a combination thereof. ### Claim 7 (depends on 1) The method of claim 1, wherein the timing value indicates a timing between a downlink grant included in the DCI and reception of the communication, wherein the communication is a downlink data communication corresponding to the downlink grant. ### Claim 8 (depends on 1) The method of claim 1, wherein the timing value indicates a timing between reception of a downlink data communication, granted in the DCI, and transmission of the communication, wherein the communication is an acknowledgement or negative acknowledgment (ACK/NACK) indication corresponding to the downlink data communication. ### Claim 9 (depends on 1) The method of claim 1, wherein the timing value indicates a timing between reception of an uplink grant included in the DCI and transmission of the communication, wherein the communication is an uplink data communication corresponding to the uplink grant. ### Claim 10 (depends on 1) The method of claim 1, wherein the timing value indicates a timing between transmission of a NACK indication corresponding to a downlink data communication granted in the DCI and reception of the communication, wherein the communication is a retransmission of the downlink data communication. ### Claim 11 (depends on 1) The method of claim 1, wherein the timing of the opportunity is explicitly indicated by a value of a field in the DCI. ### Claim 12 (depends on 1) The method of claim 1, wherein the timing of the opportunity is implicitly indicated by a value of a field in the DCI, wherein the value of the field maps to one or more opportunity timings, including the timing of the opportunity. ### Claim 13 A user equipment (UE) for wireless communication, comprising: memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: receive downlink control information (DCI) that includes a timing value indicating a timing of an opportunity, subsequent to reception of the DCI, for transmission or reception of a communication corresponding to the DCI; determine an uplink opportunity for transmission of the communication or a downlink opportunity for reception of the communication based at least in part on the timing of the opportunity, wherein a counter for determining the uplink opportunity is incremented only for transmission time intervals (TTIs) in which the UE is allowed to transmit the communication in an uplink channel, or wherein a counter for determining the downlink opportunity is incremented only for TTIs in which the UE can expect to receive the communication in a downlink channel; and transmit or receive the communication in the uplink opportunity or the downlink opportunity. ### Claim 14 (depends on 13) The UE of claim 13, wherein the TTIs are slots, mini-slots, or symbols. ### Claim 15 (depends on 13) The UE of claim 13, wherein the timing of the opportunity represents a number of slots that include an opportunity, a number of mini-slots that include an opportunity, or a number of symbols that include an opportunity. ### Claim 16 (depends on 13) The UE of claim 13, wherein the uplink opportunity or the downlink opportunity is determined based at least in part on a slot configuration indicated to the UE. ### Claim 17 (depends on 16) The UE of claim 16, wherein the slot configuration is indicated in at least one of: a radio resource control (RRC) message, DCI, or a combination thereof. ### Claim 18 (depends on 13) The UE of claim 13, wherein the timing value indicates a timing between a downlink grant included in the DCI and reception of the communication, wherein the communication is a downlink data communication corresponding to the downlink grant. ### Claim 19 (depends on 13) The UE of claim 13, wherein the timing value indicates a timing between reception of a downlink data communication, granted in the DCI, and transmission of the communication, wherein the communication is an acknowledgement or negative acknowledgment (ACK/NACK) indication corresponding to the downlink data communication. ### Claim 20 (depends on 13) The UE of claim 13, wherein the timing value indicates a timing between reception of an uplink grant included in the DCI and transmission of the communication, wherein the communication is an uplink data communication corresponding to the uplink grant. ### Claim 21 (depends on 13) The UE of claim 13, wherein the timing value indicates a timing between transmission of a NACK indication corresponding to a downlink data communication granted in the DCI and reception of the communication, wherein the communication is a retransmission of the downlink data communication. ### Claim 22 (depends on 13) The UE of claim 13, wherein the timing of the opportunity is explicitly indicated by a value of a field in the DCI. ### Claim 23 (depends on 13) The UE of claim 13, wherein the timing of the opportunity is implicitly indicated by a value of a field in the DCI, wherein the value of the field maps to one or more opportunity timings, including the timing of the opportunity. ### Claim 24 A non-transitory computer-readable medium storing instructions for wireless communication, the instructions comprising: one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to: receive downlink control information (DCI) that includes a timing value indicating a timing of an opportunity, subsequent to reception of the DCI, for transmission or reception of a communication corresponding to the DCI; determine an uplink opportunity for transmission of the communication or a downlink opportunity for reception of the communication based at least in part on the timing of the opportunity, wherein a counter for determining the uplink opportunity is incremented only for transmission time intervals (TTIs) in which the UE is allowed to transmit the communication in an uplink channel, or wherein a counter for determining the downlink opportunity is incremented only for TTIs in which the UE can expect to receive the communication in a downlink channel; and transmit or receive the communication in the uplink opportunity or the downlink opportunity. ### Claim 25 (depends on 24) The non-transitory computer-readable medium of claim 24, wherein the TTIs are slots, mini-slots, or symbols, and wherein the timing of the opportunity represents a number of slots that include an opportunity, a number of mini-slots that include an opportunity, or a number of symbols that include an opportunity. ### Claim 26 (depends on 24) The non-transitory computer-readable medium of claim 24, wherein the uplink opportunity or the downlink opportunity is determined based at least in part on a slot configuration indicated to the UE. ### Claim 27 (depends on 24) The non-transitory computer-readable medium of claim 24, wherein the timing value indicates at least one of: a timing between a downlink grant included in the DCI and reception of the communication, wherein the communication is a downlink data communication corresponding to the downlink grant, a timing between reception of a downlink data communication, granted in the DCI, and transmission of the communication, wherein the communication is an acknowledgement or negative acknowledgment (ACK/NACK) indication corresponding to the downlink data communication, a timing between reception of an uplink grant included in the DCI and transmission of the communication, wherein the communication is an uplink data communication corresponding to the uplink grant, or a timing between transmission of a NACK indication corresponding to a downlink data communication granted in the DCI and reception of the communication, wherein the communication is a retransmission of the downlink data communication. ### Claim 28 (depends on 24) The non-transitory computer-readable medium of claim 24, wherein the timing of the opportunity is explicitly or implicitly indicated by a value of a field in the DCI. ### Claim 29 An apparatus for wireless communication, comprising: means for receiving downlink control information (DCI) that includes a timing value indicating a timing of an opportunity, subsequent to reception of the DCI, for transmission or reception of a communication corresponding to the DCI; means for determining an uplink opportunity for transmission of the communication or a downlink opportunity for reception of the communication based at least in part on the timing of the opportunity, wherein a counter for determining the uplink opportunity is incremented only for transmission time intervals (TTIs) in which the UE is allowed to transmit the communication in an uplink channel, or wherein a counter for determining the downlink opportunity is incremented only for TTIs in which the UE can expect to receive the communication in a downlink channel; and means for transmitting or receiving the communication in the uplink opportunity or the downlink opportunity. ### Claim 30 (depends on 29) The apparatus of claim 29, wherein the uplink opportunity or the downlink opportunity is determined based at least in part on a slot configuration indicated to the apparatus.