Acknowledgement indication for downlink control information based transmissions

Abstract

Methods, systems, and devices for wireless communication are described. A base station can transmit, to a user equipment (UE), a downlink control information message that includes a first indication of one or more transmission configuration indicator (TCI) states for the UE to use for communications with the base station and a second indication of one or more uplink transmissions to be transmitted by the UE. In some implementations, the UE can communicate with the base station using one of the one or more indicated TCI states after a delay (or offset) from transmitting an uplink transmission of the one or more uplink transmissions. For example, the delay can include an amount of time or a number of symbols between transmitting the uplink transmission of the one or more uplink transmissions and communicating with the base station using the one of the one or more indicated TCI states.

Description

Technical Field

[0001] The following discussion relates to wireless communications, including acknowledgment indications for transmissions based on downlink control information (DCI). Background Technology

[0002] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, and broadcasting. These systems are capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth-generation (4G) systems (e.g., Long Term Evolution (LTE) systems, improved LTE (LTE-A) systems, or LTE-A Pro systems) and fifth-generation (5G) systems (which may be referred to as New Radio (NR) systems). These systems can employ technologies such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM).

[0003] A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each base station or network access node simultaneously supporting communication with multiple communication devices (which may also be referred to as user equipment (UE)). In some examples, the base station may explicitly or implicitly indicate a Transmission Configuration Indicator (TCI) state for the UE to use in communicating with the base station. For example, the TCI state may correspond to a beam used by the UE for communication with the base station (e.g., for uplink communication or downlink communication or both). Techniques are desired for using the indicated TCI state to support communication between the UE and the base station. Summary of the Invention

[0004] The described technology relates to improved methods, systems, devices, and apparatuses for supporting acknowledgment indications for downlink control information (DCI)-based transmissions. In general, the described technology relates to a base station sending a DCI message to a user equipment (UE) including both a first indication of one or more Transport Configuration Indicator (TCI) states for communication between the UE and the base station, and a second indication of one or more uplink transmissions to be transmitted by the UE. In some implementations, the UE may communicate with the base station using one of the one or more indicated TCI states (e.g., as indicated by the first indication) after a delay (e.g., an offset) relative to the uplink transmission in the transmission of one or more uplink transmissions (e.g., as indicated by the second indication). For example, the delay may include the amount of time or the number of symbols between the uplink transmission in the transmission of one or more uplink transmissions and the communication with the base station using one of the one or more indicated TCI states. In some examples, one or more uplink transports may include one or more uplink shared channel transports (e.g., physical uplink shared channel (PUSCH) transports), one or more sounding reference signal (SRS) transports, one or more channel state information (CSI) reports, one or more acknowledgment feedback transports for semi-persistent scheduling (SPS) downlink channels (e.g., SPS physical downlink shared channel (PDSCH)), one or more acknowledgment message transports for configured permission activation, one or more configured permission uplink transports (e.g., PUSCH transports on resources indicated by configured permission), or any combination thereof.

[0005] One innovative aspect of the subject matter described in this disclosure can be implemented in a method for wireless communication at a UE. The method may include: receiving a DCI message from a base station, the DCI message including a first indication of one or more TCI states for communication with the base station and a second indication corresponding to one or more uplink transmissions to be sent to the base station; sending at least one of the one or more uplink transmissions to the base station based on receiving the DCI including the second indication; and communicating with the base station using the one or more TCI states and after a delay, the delay being initiated based on sending the at least one of the one or more uplink transmissions.

[0006] Another innovative aspect of the subject matter described in this disclosure can be implemented in an apparatus for wireless communication at a UE. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: receive a DCI message from a base station, the DCI message including a first indication of one or more TCI states for communication with the base station and a second indication corresponding to one or more uplink transmissions to be sent to the base station; send at least one of the one or more uplink transmissions to the base station based on receiving the DCI including the second indication; and communicate with the base station using the one or more TCI states and after a delay initiated based on sending the at least one of the one or more uplink transmissions.

[0007] Another innovative aspect of the subject matter described in this disclosure can be implemented in an apparatus for wireless communication at a UE. The apparatus may include: a unit for receiving a DCI message from a base station, the DCI message including a first indication of one or more TCI states for communication with the base station and a second indication corresponding to one or more uplink transmissions to be sent to the base station; a unit for sending at least one of the one or more uplink transmissions to the base station based on receiving the DCI including the second indication; and a unit for using the one or more TCI states and communicating with the base station after a delay initiated based on sending the at least one of the one or more uplink transmissions.

[0008] Another innovative aspect of the subject matter described in this disclosure can be implemented in a non-transitory computer-readable medium storing code for wireless communication at a UE. The code may include instructions executable by a processor to: receive a DCI message from a base station, the DCI message including a first indication of one or more TCI states for communication with the base station and a second indication corresponding to one or more uplink transmissions to be sent to the base station; send at least one of the one or more uplink transmissions to the base station based on receiving the DCI including the second indication; and communicate with the base station using the one or more TCI states and after a delay initiated based on sending the at least one of the one or more uplink transmissions.

[0009] One innovative aspect of the subject matter described in this disclosure can be implemented in a method for wireless communication at a base station. The method may include: sending a DCI message to a UE, the DCI message including a first indication of one or more TCI states for communication between the UE and the base station and a second indication corresponding to one or more uplink transmissions to be transmitted by the UE to the base station; receiving at least one of the one or more uplink transmissions from the UE based on sending the DCI including the second indication; and communicating with the UE using the one or more TCI states and after a delay initiated based on receiving the at least one of the one or more uplink transmissions.

[0010] Another innovative aspect of the subject matter described in this disclosure can be implemented in an apparatus for wireless communication at a base station. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: send a DCI message to a UE, the DCI message including a first indication of one or more TCI states for communication between the UE and the base station and a second indication corresponding to one or more uplink transmissions sent by the UE to the base station; receive at least one of the one or more uplink transmissions from the UE based on sending the DCI including the second indication; and communicate with the UE using the one or more TCI states and after a delay initiated based on receiving the at least one of the one or more uplink transmissions.

[0011] Another innovative aspect of the subject matter described in this disclosure can be implemented in an apparatus for wireless communication at a base station. The apparatus may include: a unit for sending a DCI message to a UE, the DCI message including a first indication of one or more TCI states for communication between the UE and the base station, and a second indication corresponding to one or more uplink transmissions to be sent by the UE to the base station; a unit for receiving at least one of the one or more uplink transmissions from the UE based on sending the DCI including the second indication; and a unit for communicating with the UE using the one or more TCI states and after a delay initiated based on receiving the at least one of the one or more uplink transmissions.

[0012] Another innovative aspect of the subject matter described in this disclosure can be implemented in a non-transitory computer-readable medium storing code for wireless communication at a base station. The code may include instructions executable by a processor to: send a DCI message to a UE, the DCI message including a first indication of one or more TCI states for communication between the UE and the base station and a second indication corresponding to one or more uplink transmissions to be sent by the UE to the base station; receive at least one of the one or more uplink transmissions from the UE based on sending the DCI including the second indication; and communicate with the UE using the one or more TCI states and after a delay initiated based on receiving the at least one of the one or more uplink transmissions. Attached Figure Description

[0013] Figure 1 An example of a wireless communication system that supports acknowledgment indications for downlink control information (DCI) based transmissions, according to various aspects of this disclosure, is shown.

[0014] Figure 2 An example of a wireless communication system that supports confirmation indication for DCI-based transmissions according to various aspects of this disclosure is shown.

[0015] Figure 3-7 An example timeline of acknowledgment indications for DCI-based transmissions is shown, supporting various aspects of this disclosure.

[0016] Figure 8 An example of a process flow supporting acknowledgment indications for DCI-based transmissions, according to various aspects of this disclosure, is shown.

[0017] Figure 9 and 10 A block diagram of an apparatus supporting acknowledgment indication for DCI-based transmissions is shown, according to various aspects of this disclosure.

[0018] Figure 11 A block diagram of a communication manager supporting acknowledgment indications for DCI-based transmissions, according to various aspects of this disclosure, is shown.

[0019] Figure 12 A diagram of a system including a device supporting an acknowledgment indication for DCI-based transmissions is shown, according to various aspects of this disclosure.

[0020] Figure 13 and 14 A block diagram of an apparatus supporting acknowledgment indication for DCI-based transmissions is shown, according to various aspects of this disclosure.

[0021] Figure 15 A block diagram of a communication manager supporting acknowledgment indications for DCI-based transmissions, according to various aspects of this disclosure, is shown.

[0022] Figure 16 A diagram of a system including a device supporting an acknowledgment indication for DCI-based transmissions is shown, according to various aspects of this disclosure.

[0023] Figure 17 and 18 A flowchart illustrating a method for providing confirmation instructions for DCI-based transmissions, in accordance with various aspects of this disclosure, is shown. Detailed Implementation

[0024] In some wireless communication systems, devices can communicate with each other using a Unified Transmission Configuration Indicator (TCI) framework. In this unified TCI framework, a joint common TCI state can indicate a common beam for at least one downlink channel (or downlink reference signal transmission) and at least one uplink channel (or uplink reference signal transmission). The downlink common TCI state can indicate a common beam for at least two downlink channels, or the uplink common TCI state can indicate a common beam for at least two uplink channels. In some examples, a base station can instruct a user equipment (UE) to use the unified TCI framework by, for example, sending downlink control information (DCI) to the UE, which contains an indicator for the unified TCI framework. In some cases, acknowledgment messages for downlink channels scheduled by a DCI carrying the unified TCI framework indication can also be implemented as acknowledgments of the DCI to indicate successful reception of the unified TCI frame indication, and the unified TCI framework can be applied to communication based on a delay after receiving the DCI or sending the acknowledgment message, among other examples.

[0025] However, binding acknowledgments for the DCI to acknowledgments for scheduled downlink channels can lead to potential drawbacks. For example, the UE may successfully decode the DCI but fail to decode the scheduled downlink channel, or the UE may partially decode the scheduled downlink channel, or the base station may fail to decode the uplink control information (UCI) (e.g., carrying acknowledgment feedback), or the UE may be scheduled for other uplink transmissions. In these different scenarios, the UE may send an acknowledgment message that does not accurately convey whether the DCI was successfully received.

[0026] In summary, various aspects of this disclosure relate to using a unified TCI framework for communication between two devices, and more specifically, various aspects of this disclosure relate to sending an implicit acknowledgment message to confirm whether an indication of the unified TCI framework has been successfully received before using the unified TCI framework. When receiving an indication of the unified TCI framework (e.g., beam indication) from a base station in the DCI (where the DCI also corresponds to at least one uplink transmission), the UE can apply the unified TCI framework to its communication with the base station after (e.g., with a delay) the acknowledgment of the unified TCI framework. In some examples, acknowledgment of the unified TCI framework may include sending at least one uplink transmission (e.g., an implicit acknowledgment message). For example, in addition to carrying an indication of the unified TCI framework, the DCI can schedule uplink shared channels, one or more Sounding Reference Signal (SRS) transmissions, one or more Channel State Information (CSI) reports, one or more Semi-Persistent Scheduling (SPS) downlink channel reception opportunities and associated ACK feedback messages for SPS downlink channel reception opportunities, or permitted transmissions for one or more uplink configurations, and the UE can start counting down the delay when sending one of these different types of uplink transmissions. In some implementations, the delay can begin at a symbol of the transmission (e.g., the first or last symbol), such as the actual uplink transmission or the nominal uplink transmission (e.g., a nominal uplink transmission may include opportunities for transmissions for uplink transmissions, but may not actually send any uplink transmissions).

[0027] Specific aspects of the subject matter described in this disclosure can be implemented to achieve one or more of the following potential advantages. The technology employed by the described communication device can provide benefits and enhancements to the operation of the communication device, including increased reliability for communication between communication devices using a common beam. For example, operations performed by the described communication device can provide improvements to the confirmation of a joint downlink / uplink beam indication or a separate downlink / uplink beam indication (e.g., for a unified TCI framework), wherein a joint downlink / uplink beam or a separate downlink / uplink beam can be used after a delay from the confirmation of the corresponding indication. In some implementations, the operation performed by the described communication device to confirm the indication may include sending an uplink transmission indicated by the same control message (e.g., a DCI message), which may include a joint downlink / uplink beam indication or a separate downlink / uplink beam indication. By implicitly acknowledging the indication via sending an uplink message, the communication device can acknowledge the indication more efficiently, rather than sending an explicit acknowledgment message carrying a control message carrying a combined downlink / uplink beam indication or a separate downlink / uplink beam indication, which may or may not accurately reflect whether the corresponding beam indication was successfully received. This implicit acknowledgment can reduce latency and improve communication reliability, among various other benefits.

[0028] The aspects of this disclosure are first described in the context of a wireless communication system. Furthermore, these aspects are illustrated with additional wireless communication systems, different timeline examples, and process flows. The aspects of this disclosure are further illustrated by apparatus diagrams, system diagrams, and flowcharts relating to acknowledgment indications for DCI-based transmissions, and are described with reference to these diagrams.

[0029] Figure 1 Examples of a wireless communication system 100 supporting acknowledgment indications for DCI-based transmissions are shown according to various aspects of this disclosure. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an improved LTE (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low-latency communication, or communication with low-cost and low-complexity devices, or any combination thereof.

[0030] Base stations 105 can be distributed throughout a geographical area to form a wireless communication system 100, and can be devices of different forms or with different capabilities. Base stations 105 and UE 115 can communicate wirelessly via one or more communication links 125. Each base station 105 can provide a coverage area 110, and UE 115 and base station 105 can establish one or more communication links 125 on the coverage area 110. Coverage area 110 can be an example of a geographical area where base station 105 and UE 115 can support signal transmission according to one or more radio access technologies.

[0031] UE 115 can be distributed throughout the entire coverage area 110 of the wireless communication system 100, and each UE 115 can be stationary, mobile, or both at different times. UE 115 can be devices of different forms or with different capabilities. Figure 1 Some example UE 115s are shown in the document. The UE 115 described herein is capable of communicating with various types of devices, such as other UE 115s, base station 105, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices). Figure 1 As shown.

[0032] Base station 105 can communicate with core network 130, communicate with each other, or perform both operations. For example, base station 105 can interface with core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). Base station 105 can communicate with each other directly (e.g., directly between base stations 105) on backhaul links 120 (e.g., via X2, Xn, or other interfaces), or indirectly (e.g., via core network 130), or perform both operations. In some examples, backhaul link 120 can be or includes one or more radio links.

[0033] One or more of the base stations 105 described herein may include, or may be referred to by those skilled in the art as, base station transceiver, radio base station, access point, radio transceiver, node B, evolved node B (eNB), next-generation node B or gigabit node B (any of which may be referred to as gNB), home node B, home evolved node B, or some other suitable term.

[0034] UE 115 may include or be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or some other suitable term, wherein "device" may also be referred to as a unit, station, terminal, or client, and other examples. UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or machine-type communication (MTC) device, and other examples, which may be implemented in various items such as appliances, vehicles, meters, and other examples.

[0035] The UE 115 described in this document can communicate with various types of devices, such as other UE 115s that can sometimes act as repeaters, as well as base station 105 and network devices, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, and other examples, such as... Figure 1 As shown.

[0036] UE 115 and base station 105 can wirelessly communicate with each other via one or more communication links 125 on one or more carriers. The term "carrier" can refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communication link 125. For example, a carrier for communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling coordinating operation for the carrier, user data, or other signaling. Wireless communication system 100 can support communication with UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, UE 115 can be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation can be used in conjunction with both frequency division duplex (FDD) component carriers and time division duplex (TDD) component carriers.

[0037] In some examples (e.g., in a carrier aggregation configuration), the carrier may also have acquisition or control signaling that coordinates operation against other carriers. The carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be positioned according to a channel grid for discovery by UE 115. The carrier may operate in standalone mode, where UE 115 performs initial acquisition and connection via the carrier, or the carrier may operate in non-standalone mode, where different carriers (e.g., the same or different radio access technologies) are used to anchor the connection.

[0038] The communication link 125 shown in the wireless communication system 100 may include uplink transmission from UE 115 to base station 105, or downlink transmission from base station 105 to UE 115. The carrier may carry downlink or uplink communication (e.g., in FDD mode) or may be configured to carry both downlink and uplink communication (e.g., in TDD mode).

[0039] A carrier can be associated with a specific bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth can be referred to as the carrier or the "system bandwidth" of the wireless communication system 100. For example, the carrier bandwidth can be one of a number of defined bandwidths for a specific radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). Devices of the wireless communication system 100 (e.g., base station 105, UE 115, or both) can have a hardware configuration that supports communication on a specific carrier bandwidth, or can be configured to support communication on one carrier bandwidth in a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 can be configured to operate on a portion (e.g., a subband, BWP) or all of the carrier bandwidth.

[0040] The signal waveform transmitted on a carrier can consist of multiple subcarriers (e.g., using multicarrier modulation (MCM) techniques such as Orthogonal Frequency Division Multiplexing (OFDM) or Discrete Fourier Transform Spread Spectrum OFDM (DFT-S-OFDM)). In a system employing MCM, a resource element can include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element can depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Therefore, the more resource elements UE 115 receives and the higher the order of the modulation scheme, the higher the data rate can be for UE 115. Wireless communication resources can refer to a combination of radio frequency spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers can further increase the data rate or data integrity used for communication with UE 115.

[0041] It can support one or more digital schemes (numerologies) for the carrier, wherein the digital schemes may include subcarrier spacing ( (and cyclic prefix). A carrier can be divided into one or more BWPs with the same or different digital schemes. In some examples, UE 115 can be configured with multiple BWPs. In some examples, a single BWP for a carrier can be active at a given time, and communication for UE 115 can be restricted to one or more active BWPs.

[0042] It can be in the basic unit of time (which can be, for example, referred to as) The sampling period is seconds, where It can represent the maximum supported subcarrier spacing, and The time interval for base station 105 or UE 115 can be represented as a multiple of the maximum supported Discrete Fourier Transform (DFT) size. The time interval for communication resources can be organized based on radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame can be identified by a System Frame Number (SFN) (e.g., ranging from 0 to 1023).

[0043] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a number of symbol periods (e.g., this depends on the length of the cyclic prefix added before each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple micro-time slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., (Number) sampling periods. The duration of a symbol period can depend on the subcarrier spacing or the operating frequency band.

[0044] A subframe, time slot, micro-time slot, or symbol can be the smallest scheduling unit of the wireless communication system 100 (e.g., in the time domain) and can be referred to as a transmission time interval (TTI). In some examples, the duration of the TTI (e.g., the number of symbol periods in the TTI) can be variable. Alternatively, the smallest scheduling unit of the wireless communication system 100 can be dynamically selected (e.g., in a burst form of a shortened TTI (sTTI)).

[0045] Physical channels can be multiplexed on a carrier using various techniques. For example, one or more of Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM), or hybrid TDM-FDM techniques can be used to multiplex physical control channels and physical data channels on a downlink carrier. A control region (e.g., a control resource set (CORESET)) for physical control channels can be defined by the number of symbol periods and can extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESETs) can be configured for a group of UEs 115. For example, one or more of the UEs 115 can monitor or search for control regions against control information based on one or more search space sets, and each search space set can include one or more control channel candidates arranged in a cascaded manner at one or more aggregation levels. The aggregation level for control channel candidates can refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space set may include a common search space set configured to send control information to multiple UEs 115 and a UE-specific search space set used to send control information to a specific UE 115.

[0046] Each base station 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hotspots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used (e.g., on a carrier) to communicate with base station 105 and may be associated with an identifier used to distinguish adjacent cells (e.g., Physical Cell Identifier (PCID), Virtual Cell Identifier (VCID), or other identifier). In some examples, a cell may also refer to a geographic coverage area 110 or a portion of geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. Depending on various factors such as the capabilities of base station 105, the range of such cells can range from small areas (e.g., structures, subsets of structures) to large areas. For example, a cell may be or include buildings, subsets of buildings, or external space between or overlapping geographic coverage areas 110, and other examples.

[0047] Macro cells typically cover a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access by UE 115 with a service subscription to a network provider supporting the macro cell. In contrast, small cells can be associated with a lower-power base station 105 and can operate in the same or different (e.g., licensed, unlicensed) frequency bands as macro cells. Small cells can provide unrestricted access to UE 115 with a service subscription to a network provider, or restricted access to UE 115 associated with the small cell (e.g., UE 115 in a Closed Subscriber Group (CSG), or UE 115 associated with a user in a residence or office). Base station 105 can support one or more cells and can also support communication on one or more cells using one or more component carriers.

[0048] In some examples, a carrier can support multiple cells and can be configured with different cells based on different protocol types that can provide access for different types of devices (e.g., MTC, Narrowband IoT (NB-IoT), Enhanced Mobile Broadband (eMBB)).

[0049] In some examples, base station 105 may be mobile, and therefore provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. Wireless communication system 100 may include, for example, a heterogeneous network, in which different types of base stations 105 use the same or different radio access technologies to provide coverage for various geographic coverage areas 110.

[0050] The wireless communication system 100 can support synchronous or asynchronous operation. For synchronous operation, base stations 105 can have similar frame timings, and transmissions from different base stations 105 can be approximately time-aligned. For asynchronous operation, base stations 105 can have different frame timings, and in some examples, transmissions from different base stations 105 may not be time-aligned. The techniques described herein can be used for both synchronous and asynchronous operation.

[0051] Some UE 115s (e.g., MTC or IoT devices) can be low-cost or low-complexity devices and can provide automated machine-to-machine communication (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC can refer to data communication technologies that allow devices to communicate with each other or with base station 105 without human intervention. In some examples, M2M communication or MTC can include communication from devices that have integrated sensors or meters to measure or capture information and relay such information to a central server or application that uses the information or presents it to humans interacting with the application. Some UE 115s can be designed to collect information or automate the behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, climate and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based billing.

[0052] Some UE 115s can be configured to operate in a power-saving mode, such as half-duplex communication (e.g., a mode that supports unidirectional communication via either transmission or reception, rather than simultaneous transmission and reception). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power-saving techniques for UE 115 include entering a power-saving deep sleep mode when not participating in active communication, operating on limited bandwidth (e.g., according to narrowband communication), or a combination of these techniques. For example, some UE 115s can be configured to operate using a narrowband protocol type associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a carrier's guard band, or outside a carrier.

[0053] Wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. UE 115 can be designed to support ultra-reliable, low-latency, or mission-critical functions (e.g., mission-critical functions). Ultra-reliable communication can include private or group communication and can be supported by one or more mission-critical services, such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions can include service prioritization, and mission-critical services can be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency are used interchangeably herein.

[0054] In some examples, UE 115 is able to communicate directly with other UE 115s on a device-to-device (D2D) communication link 135 (e.g., using peer-to-peer (P2P) or D2D protocols). One or more UEs 115s utilizing D2D communication can be within the geographic coverage area 110 of base station 105. Other UEs 115s in such a group may be outside the geographic coverage area 110 of base station 105 or otherwise unable to receive transmissions from base station 105. In some examples, groups of UEs 115s communicating via D2D communication can utilize a one-to-many (1:M) system, where each UE 115 transmits to every other UE 115 in the group. In some examples, base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving base station 105.

[0055] In some systems, the D2D communication link 135 may be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, vehicles may communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these. Vehicles may signal information relating to traffic conditions, signal control, weather, safety, emergencies, or any other information relating to the V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure (such as roadside units), or communicate with the network via one or more network nodes (e.g., base station 105) using vehicle-to-network (V2N) communication, or both.

[0056] Core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. Core network 130 can be an evolved packet core (EPC) or a 5G core (5GC), and can include at least one control plane entity (e.g., a mobility management entity (MME), access and mobility management function unit (AMF)) managing access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), packet data network (PDN) gateway (P-GW), or user plane function unit (UPF)) routing packets to or interconnecting with external networks. The control plane entity can manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UE 115 served by base station 105 associated with core network 130. User IP packets can be transmitted through the user plane entity, which can provide IP address allocation and other functions. The user plane entity can connect to IP service 150 for one or more network operators. IP services 150 may include access to the Internet, intranets, IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0057] Some network devices (e.g., base station 105) may include sub-components such as access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with UE 115 through one or more other access network transport entities 145 (which may be referred to as a radio headend, smart radio headend, or transmit / receive point (TRP)). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across individual network devices (e.g., radio headends and ANCs) or incorporated into a single network device (e.g., base station 105).

[0058] Wireless communication system 100 can operate using one or more frequency bands (typically in the range of 300 MHz to 300 GHz). The region from 300 MHz to 3 GHz is often referred to as the Ultra High Frequency (UHF) region or decimeter band because the wavelength range extends from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, but the waves can be sufficiently permeable to penetrate structures for use in macrocells to provide service to UE 115 located indoors. Compared to the transmission of smaller frequencies and longer waves in the lower 300 MHz portion of the spectrum in the High Frequency (HF) or Very High Frequency (VHF) regions, UHF wave transmission can be associated with smaller antennas and shorter distances (e.g., less than 100 km).

[0059] The wireless communication system 100 can also operate in the ultra-high frequency (SHF) region using a frequency band from 3 GHz to 30 GHz (also referred to as the centimeter band) or in the extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) (also referred to as the millimeter band). In some examples, the wireless communication system 100 can support millimeter-wave (mmW) communication between the UE 115 and the base station 105, and the EHF antennas of the corresponding device can be even smaller and more closely spaced compared to UHF antennas. In some examples, this can facilitate the use of antenna arrays within the device. However, EHF transmissions may suffer from even greater atmospheric attenuation and shorter distances compared to SHF or UHF transmissions. The techniques disclosed herein can be employed across transmissions using one or more different frequency regions, and the designated use of frequency bands across these frequency regions may vary depending on the country or regulatory authority.

[0060] Wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, wireless communication system 100 can employ licensed assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in unlicensed frequency bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band). If operating in an unlicensed radio frequency spectrum band, devices (such as base station 105 and UE 115) can employ carrier sensing for collision detection and avoidance. In some examples, operation in the unlicensed frequency band can be based on carrier aggregation configurations that combine component carriers operating in a licensed frequency band (e.g., LAA). Operation in the unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, and other examples.

[0061] Base station 105 or UE 115 may be equipped with multiple antennas, which can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels (which may support MIMO operation or transmit or receive beamforming). For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, the antennas or antenna arrays associated with base station 105 may be located in different geographical locations. Base station 105 may have an antenna array having a number of rows and columns of antenna ports that base station 105 can use to support beamforming for communication with UE 115. Similarly, UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, antenna panels may support radio frequency beamforming for signals transmitted via antenna ports.

[0062] Base station 105 or UE 115 can use MIMO communication to utilize multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such a technique can be called spatial multiplexing. For example, a transmitting device can transmit multiple signals via different antennas or different combinations of antennas. Similarly, a receiving device can receive multiple signals via different antennas or different combinations of antennas. Each of the multiple signals can be referred to as a separate spatial stream and can carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers can be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO) (where multiple spatial layers are transmitted to the same receiving device) and multi-user MIMO (MU-MIMO) (where multiple spatial layers are transmitted to multiple devices).

[0063] Beamforming (also known as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting or receiving device (e.g., base station 105, UE 115) to form or guide antenna beams (e.g., transmit beams, receive beams) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array such that some signals propagating relative to a specific orientation of the antenna array experience constructive interference, while others experience destructive interference. Adjustments to the signals transmitted via the antenna elements can include applying amplitude offset, phase offset, or both to the signals carried via the antenna elements associated with the transmitting or receiving device. The adjustments associated with each antenna element can be defined by a set of beamforming weights associated with a specific orientation (e.g., relative to the antenna array of the transmitting or receiving device, or relative to some other orientation).

[0064] As part of beamforming operations, base station 105 or UE 115 may use beam scanning techniques. For example, base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with UE 115. Base station 105 may transmit some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) multiple times in different directions. For example, base station 105 may transmit signals according to different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by a transmitting device (such as base station 105) or by a receiving device (such as UE 115)) to identify the beam direction for subsequent transmissions or receptions performed by base station 105.

[0065] Base station 105 may transmit signals (e.g., data signals associated with a specific receiving device, such as UE 115) in a single beam direction. In some examples, the beam direction associated with transmission along a single beam direction may be determined based on signals transmitted in one or more beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions and may report to base station 105 an indication of the signal received by UE 115 with the highest signal quality or otherwise acceptable signal quality.

[0066] In some examples, multiple beam directions can be used to perform transmissions by a device (e.g., base station 105 or UE 115), and the device can use a combination of digital precoding or radio frequency beamforming to generate combined beams for (e.g., from base station 105 to UE 115) transmissions. UE 115 can report feedback indicating precoding weights for one or more beam directions, and this feedback can correspond to a configured number of beams spanning the system bandwidth or one or more subbands. Base station 105 can transmit reference signals that can be precoded or unprecoded (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)). UE 115 can provide feedback on beam selection, which can be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel type codebook, linear combination type codebook, port selection type codebook). Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may employ similar techniques to transmit signals multiple times in different directions (e.g., to identify beam directions for subsequent transmissions or receptions by UE 115) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).

[0067] If various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) are received from base station 105, the receiving device (e.g., UE 115) can attempt multiple receiving configurations (e.g., directional listening). For example, the receiving device can attempt multiple receiving directions by receiving via different antenna subarrays, by processing the received signals according to different antenna subarrays, by receiving according to different sets of receiving beamforming weights applied to signals received at multiple antenna elements of the antenna array (e.g., different sets of directional listening weights), or by processing the received signals according to different sets of receiving beamforming weights applied to signals received at multiple antenna elements of the antenna array (any of these operations can be referred to as "listening" according to different receiving configurations or receiving directions). In some examples, the receiving device can use a single receiving configuration to receive along a single beam direction (e.g., if receiving a data signal). A single receiver configuration can be aligned to a beam direction determined based on listening in different receiver configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or otherwise acceptable signal quality based on listening in multiple beam directions).

[0068] The wireless communication system 100 can be a packet-based network operating according to a layered protocol stack. In the user plane, communication at the bearer or Packet Data Convergence Protocol (PDCP) layer can be IP-based. The Radio Link Control (RLC) layer can perform packet fragmentation and reassembly for transmission over logical channels. The Media Access Control (MAC) layer can perform priority handling and multiplexing of logical channels to transport channels. The MAC layer can also use error detection techniques, error correction techniques, or both to support retransmissions at the MAC layer to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer can provide the establishment, configuration, and maintenance of RRC connections (which support radio bearers for user plane data) between the UE 115 and the base station 105 or core network 130. At the physical layer, transport channels can be mapped to physical channels.

[0069] UE 115 and base station 105 can support data retransmission to increase the likelihood of successful data reception. Hybrid Automatic Repeat Request (HARQ) feedback is a technique used to increase the likelihood of correct data reception on communication link 125. HARQ can include a combination of error detection (e.g., using Cyclic Redundancy Check (CRC)), forward error correction (FEC), and retransmission (e.g., Automatic Repeat Request (ARQ)). HARQ can improve throughput at the MAC layer under poor radio conditions (e.g., low signal and noise conditions). In some examples, the device can support same-slot HARQ feedback, where the device can provide HARQ feedback for data received in a previous symbol within a specific time slot. In other cases, the device can provide HARQ feedback in subsequent time slots or according to some other time interval.

[0070] In some wireless communication systems, two devices can use different TCI states for communication with each other. In some examples, the two devices can use a unified TCI framework for communication. A unified TCI framework can include a joint common TCI state for uplink and downlink communication, a separate uplink common TCI state, a separate downlink common TCI state, or any combination thereof. For example, a joint common TCI state for uplink and downlink communication can indicate a common beam for at least one downlink channel (or downlink reference signal) and at least one uplink channel (or uplink reference signal); a separate downlink common TCI state can indicate a common beam for at least two downlink channels (or downlink reference signals); and a separate uplink common TCI state can indicate a common beam for at least two uplink channels (or uplink reference signals). With a unified TCI framework, UE 115 can support joint TCI for downlink and uplink communication based on the downlink TCI framework. In some implementations, the term "TCI" may include a TCI state that includes at least one source reference signal to provide the device with a reference for determining a quasi-co-addressable (QCL), spatial filter, or both for communication with additional devices (e.g., for UE assumptions).

[0071] Within the unified TCI framework, to accommodate separate beam indications for uplink and downlink communications, UE 115 can utilize two separate TCI states (e.g., one TCI state for downlink communication and one TCI state for uplink communication). For the separate downlink common TCI state, M One or more source reference signals in a TCI can provide QCL information for UE-specific reception on at least the downlink shared channel (e.g., the physical downlink shared channel (PDSCH)) and for UE-specific reception on all or a subset of the CORESET in the component carriers. For individual uplink common TCI states, N One or more source reference signals in a TCI can provide a reference for determining all or a subset of a common uplink transmission space filter, at least for dynamically granted or configured granted uplink shared channels (e.g., Physical Uplink Shared Channel (PUSCH)) or for dedicated uplink control channel resources in component carriers (e.g., Physical Uplink Control Channel (PUCCH) resources). In some cases, the uplink transmission space filter can also be applied to all SRS resources in one or more resource sets configured for antenna switching, codebook-based uplink transmission, non-codebook-based uplink transmission, or any combination thereof.

[0072] For a unified TCI framework (e.g., a common beam TCI state), the UE 115 can be explicitly or implicitly indicated to the UE 115 of at least one set of multiple applicable channels (or reference signals) to which each type of TCI state can be applied. Additionally, TCI states can include the following types: A first type can include a joint common TCI state for uplink and downlink communication as described above (e.g., a joint DL / UL common TCI state) (e.g., to indicate a common beam for at least one downlink channel or downlink reference signal plus at least one uplink channel or uplink reference signal). A second type can include a separate downlink common TCI state as described above (e.g., to indicate a common beam for at least two downlink channels or downlink reference signals). A third type can include a separate uplink common TCI state as described above (e.g., to indicate a common beam for at least two uplink channels or uplink reference signals). A fourth type can include a separate downlink single-channel or downlink reference signal TCI state to indicate a beam for a single downlink channel or downlink reference signal. The fifth type may include a separate uplink single channel or uplink reference signal RS TCI state to indicate the beam used for a single uplink channel or uplink reference signal.

[0073] In some cases, one or more channels, one or more source reference signals, or both may be associated with a common beam TCI (e.g., a unified TCI framework). One or more channels and one or more reference signals applicable to each TCI type may include the following candidates: UE-specific or UE-free Physical Downlink Control Channel (PDCCH), PDSCH, PUCCH, PUSCH; Synchronization Signal / Physical Broadcast Channel Block (SSB), Periodic CSI Reference Signal (CSI-RS), Semi-periodic CSI-RS, Aperiodic CSI-RS, Periodic Positioning Reference Signal (PRS), Semi-periodic PRS, Aperiodic PRS; Periodic SRS, Semi-periodic SRS, Aperiodic SRS; or any combination thereof.

[0074] PDSCH, PUCCH, and PUSCH can be dynamically scheduled (e.g., via DCI), semi-statically activated (e.g., by DCI or MAC control element (CE)), or semi-statically configured (e.g., via RRC). PDSCH can have a scheduling offset between DCI and PDSCH equal to or greater than the beam switching delay threshold, or a scheduling offset less than the beam switching delay threshold. Additionally, PDCCH can be carried by all or a subset of CORESET. CSI-RS can be intended for CSI measurements and CSI reporting (if no higher-level parameters (such as Tracking Reference Signal (TRS) information or repetition parameters) are indicated), for beam measurements and reporting (if higher-level parameters for repetition are included), or for any combination thereof. SRS can be intended for antenna switching, beam management, codebook-based PUSCH, and non-codebook-based PUSCH. In some cases, PUCCH, SSB, CSI-RS, PRS, SRS, or any combination thereof can be all or a subset of the corresponding configured resources.

[0075] In some cases, base station 105 may use a DCI-based beam indication framework to indicate one or more TCI states for use by UE 115. For example, on beam indication signaling media that supports joint or individual downlink or uplink beam indication for a unified TCI framework, base station 105 and UE 115 may use at least UE-specific (i.e., unicast) DCI to support Layer 1 (L1) based beam indication to indicate joint or individual downlink or uplink beam indication from active TCI states of UE 115. In some examples, DCI formats 1_1 and 1_2 may be used for this beam indication. Additionally, UE 115 may support mechanisms for confirming successful decoding of the beam indication. For example, acknowledgment feedback (e.g., positive acknowledgment (ACK) or negative acknowledgment (NACK)) of the PDSCH scheduled by the DCI carrying the beam indication may also be used as acknowledgment feedback for the DCI.

[0076] Alternatively, base station 105 and UE 115 may support DCI-based carrier aggregation beam indication. For example, for a unified TCI framework, base station 105 and UE 115 may support common TCI state identifier (ID) updates and activations to provide common QCL information, one or more common uplink transmission space filters across a set of configured component carriers, or both. This common TCI state ID update and activation may be applied to in-band carrier aggregation, joint downlink / uplink beam indication, separate downlink and uplink beam indications, or any combination thereof. Additionally, the common TCI state ID may indicate that the same or a single reference signal determined according to the TCI state indicated by the common TCI state ID can be used to provide QCL indication (e.g., QCL Type-D indication) and to determine uplink transmission space filters across a set of configured component carriers.

[0077] In some cases, base station 105 and UE 115 can use a timeline for the beam indication frame based on DCI to determine when to begin using the beam frame indicated by the DCI (e.g., TCI state or beam). For example, if a beam indication is received in the DCI, UE 115 can begin using one or more beams indicated by the beam indication in a first time slot (or a TTI of different lengths), which is at least after receiving the DCI with a beam indication (e.g., a combined downlink / uplink beam indication or a separate downlink / uplink beam indication). X ms or Y Following the symbol. Alternatively, if a beam indication is received in the DCI, the UE 115 may begin using one or more beams indicated by the beam indication in a first time slot, which is at least after the UE 115 has sent an acknowledgment of the combined or individual downlink / uplink beam indication. X ms or Y After the symbol. Existing timing for DCI-based TCI or spatial relation update definitions can be used for X and Y Or it could be targeted X and Y Define a new timing. Additionally, UE 115 and base station 105 may apply this delay in some cases (e.g., minimum indication delay), but not in others. For example, if the newly indicated beam is different from the previously indicated beam, UE 115 and base station 105 may use the delay.

[0078] However, for UE 115 at least after UE 115 sends confirmation of the combined or individual downlink / uplink beam indication X ms or YThe use of alternatives to one or more beams indicated by the beam indication begins in the first time slot after the symbol. Acknowledgment of the combined or individual downlink / uplink beam indication may be unclear due to the following issues: In some examples, UE 115 may successfully decode the DCI, but decoding the PDSCH may fail, meaning that a NACK bit sent for the PDSCH does not necessarily indicate that UE 115 failed to decode the DCI. Alternatively, UE 115 may decode a portion of the PDSCH while losing one or more other portions (e.g., if the PDSCH has multiple transport blocks (TBs) or code block groups (CBGs)). In other examples, UE 115 may send an ACK for the PDSCH, but base station 105 may fail to decode the UCI carrying the ACK (e.g., PUCCH failure or a false detection of the final DCI). Alternatively, UE 115 may be scheduled for other uplink transmissions (e.g., SRS or PUSCH). In these different cases, UE 115 may send an acknowledgment message that does not accurately convey whether the DCI carrying the beam indication was successfully received.

[0079] Wireless communication system 100 may support techniques for UE 115 to implicitly acknowledge receipt (e.g., in a DCI message) of a beam indication (or an indication of one or more TCI states) and then use one or more beams indicated by the beam indication after a delay initiated at the time of implicit acknowledgment. For example, base station 105 may send a DCI message to UE 115 including a first indication of one or more TCI states for communication between UE 115 and base station 105. In some implementations, if the DCI message also includes a second indication corresponding to one or more uplink transmissions to be transmitted by UE 115, the implicit acknowledgment may include UE 115 transmitting at least one of the one or more uplink transmissions, and UE 115 may begin communication with base station 105 using one of the one or more TCI states after a delay based on the transmission of at least one of the one or more uplink transmissions. In some examples, one or more uplink transmissions may include PUSCH transmissions, SRS transmissions, CSI reports, acknowledgment feedback transmissions for SPS downlink channels (e.g., SPS PDSCH), acknowledgment message transmissions for configured permission activation, configured permission uplink transmissions (e.g., PUSCH transmissions on resources indicated by configured permission), or any combination thereof.

[0080] Figure 2An example of a wireless communication system 200 supporting acknowledgment indication for DCI-based transmissions according to various aspects of this disclosure is shown. The wireless communication system 200 may be implemented by various aspects of the wireless communication system 100 or may be implemented by various aspects of the wireless communication system 100. For example, the wireless communication system 200 may include a base station 105-a and a UE 115-a, which may respectively represent as referred to in the reference... Figure 1 Examples of base station 105 and UE 115 are described. Additionally, base station 105-a and UE 115-a can communicate on resources of carrier 205 (e.g., for downlink communication), carrier 225 (e.g., for uplink communication), and carrier 235 (e.g., for both downlink and uplink communication). Although shown as separate carriers, carriers 205, 225, and 235 may include the same or different resources (e.g., time and frequency resources) for corresponding transmissions. Furthermore, base station 105-a and UE 115-a can support beamforming transmission (e.g., the beams used for beamforming transmission may correspond to different TCI states).

[0081] For reference Figure 1 The wireless communication system 200 discussed herein can support implicit acknowledgment for a unified TCI indication (or a unified TCI framework indication). For example, for a beam indication (e.g., an L1-based beam indication) that uses at least a UE-specific (e.g., unicast) DCI to indicate the active TCI state from UE 115-a, either a joint or individual downlink / uplink beam indication (i.e., a unified TCI indication or a unified TCI framework indication), UE 115-a can apply the beam indication after acknowledgment of the joint or individual downlink / uplink beam indication, where the acknowledgment of the joint or individual downlink / uplink beam indication can be different variations. For example, acknowledgment may include: transmitting a PUSCH indicated in the same DCI as the beam indication (refer to...). Figure 3 (For a more detailed description), the SRS indicated in the same DCI as the beam indication (see reference) Figure 4 (For a more detailed description), send a CSI report indicated in the same DCI as the beam indication (see [reference]). Figure 5 (For a more detailed description), transmit ACK / NACK feedback for SPS PDSCH repetitions in the same DCI as the beam indication (see [reference]). Figure 6 (For a more detailed description), send an authorized activation confirmation message or an authorized PUSCH transmission message as indicated in the same DCI as the beam indication (see [reference]). Figure 7 (more detailed description), or any combination thereof.

[0082] like Figure 2As illustrated in the example, base station 105-a may transmit DCI 210 (e.g., on resources of carrier 205), which includes indications of one or more TCI states 215 for communication between UE 115-a and base station 105-a (e.g., beam indication, unified TCI framework indication, combined downlink / uplink beam indication, individual downlink / uplink beam indication) and uplink transmission indication 220. For example, DCI 210 may indicate which TCI states 215 are available for use by UE 115-a, or it may correspond to one or more uplink transmissions transmitted by UE 115-a. That is, uplink transmission indication 220 may indicate or correspond to one or more uplink transmissions transmitted by UE 115-a. For example, uplink transmission indication 220 may indicate or correspond to one or more PUSCH transmissions, one or more SRS transmissions, one or more CSI reports, ACK / NACK feedback for one or more SPS PDSCH repeats, acknowledgment message transmission for a configured permission activation indication, a configured permission PUSCH transmission, or any combination thereof.

[0083] Before using one or more TCI states 215, UE 115-a may apply a delay (e.g., minimum indication delay) between sending an acknowledgment message for indicating one or more TCI states 215 and communicating with base station 105-a using one or more TCI states 215. However, UE 115-a and base station 105-a may use the transmission of uplink transmissions corresponding to uplink transmission indications 220 as an implicit acknowledgment of the reception of one or more TCI states 215, instead of sending an explicit acknowledgment message for indicating one or more TCI states 215 (which may increase signaling overhead), or sending an acknowledgment message for the downlink channel indicated by the DCI (this includes, as referenced...). Figure 1 (The problem described). Subsequently, one or more TCI states 215 can be used for communication, for example, after a delay initiated during the transmission of an uplink transmission.

[0084] For example, after receiving DCI 210, UE 115-a may transmit one or more uplink transmissions 230 indicated by DCI 210 (e.g., on resources of carrier 225). Subsequently, base station 105-a and UE 115-a may then have TCI state-based communication 240 (e.g., on resources of carrier 235) based on the application of a delay after UE 115-a transmits one or more uplink transmissions 230. In some implementations, DCI 210 may indicate sleep of a secondary cell (SCell) and an indication of one or more TCI states 215, instead of including uplink transmission indication 220. However, if there is no PDSCH reception on the SCell, UE 115-a may ignore the indication of one or more TCI states 215 (e.g., beam indication) in DCI 210.

[0085] Figure 3 An example of a timeline 300 supporting acknowledgment indications for DCI-based transmissions according to various aspects of this disclosure is shown. Timeline 300 may be implemented by, or can be implemented by, various aspects of wireless communication systems 100 and 200. For example, UE 115 and base station 105 may use timeline 300 to determine when UE 115 will begin communicating with base station 105 using one or more TCI states (e.g., beams) indicated by base station 105. In some examples, one or more TCI states may correspond to a unified TCI framework indicating a common beam that can be used by UE 115 for at least one uplink channel (or uplink reference signal) and at least one downlink channel (or downlink reference signal), a common beam that can be used by UE 115 for at least two downlink channels (or downlink reference signals), or a common beam that can be used by UE 115 for at least two uplink channels (or uplink reference signals). UE 115 may begin using one or more TCI states after a delay, which begins after receiving an indication of one or more TCI states or sending an uplink transmission corresponding to the same indication carrying one or more TCI states.

[0086] exist Figure 3In the example, base station 105 may send DCI 305 to UE 115, and DCI 305 may include a first indication of one or more TCI states for communication between UE 115 and base station 105 and a second indication of one or more PUSCH 310 scheduled for transmission by UE 115. In some implementations, UE 115 may initiate TCI state-based communication 315 with base station 105 (e.g., using at least one TCI state among one or more indicated TCI states) after a delay 320 in a first timeslot (or TTI of different lengths), the delay 320 being at least after receiving DCI 305 with the first indication of one or more TCI states. X ms or Y After a symbol.

[0087] Alternatively, UE 115 and base station 105 may use the transmission of one of the one or more PUSCH 310s as an implicit acknowledgment of a first indication of one or more TCI states, and may initiate delay 325 during the transmission of one of the one or more PUSCH 310s. That is, if DCI 305 carrying a first indication of one or more TCI states also schedules one or more PUSCH 310s, the PUSCH transmission can be used as an acknowledgment indication of one or more TCIs. Subsequently, UE 115 may apply the indicated TCI state to TCI state-based communication 315 in a first timeslot, which begins with at least one (e.g., first or last) symbol of a scheduled PUSCH or one (e.g., first or last) symbol of a repeated (e.g., actual or nominal) transmission of multiple PUSCHs scheduled by DCI 305. X ms or Y Symbol. For example, before applying the indicated TCI state to TCI state-based communication 315, UE 115 may use delay 325-a, which starts from the first symbol of the first PUSCH scheduled by DCI 305. Alternatively, before applying the indicated TCI state to TCI state-based communication 315, UE 115 may use delay 325-b, which starts from the last symbol of the last PUSCH scheduled by DCI 305.

[0088] Despite Figure 3The examples illustrate delays 325-a and 325-b, but different delays starting from the first or last symbol of other PUSCHs scheduled by DCI 305 can be used. In some examples, the nominal transmission may include opportunities for uplink transmissions, but uplink transmissions may not actually be sent. Additionally, UE 115 may expect PUSCHs scheduled by DCI 305 that contain indications of one or more TCI states (e.g., joint or individual downlink / uplink beam indications) to be distinguished from configured permitted PUSCHs by any of the modulation and coding scheme (MCS), the scrambling sequence for the demodulation reference signal (DMRS), and the frequency domain resource allocation (FDRA).

[0089] Figure 4 An example of a timeline 400 supporting acknowledgment indications for DCI-based transmissions according to various aspects of this disclosure is shown. Timeline 400 may be implemented by, or can be implemented by, various aspects of wireless communication systems 100 and 200. For example, UE 115 and base station 105 may use timeline 400 to determine when UE 115 will begin communicating with base station 105 using one or more TCI states (e.g., beams) indicated by base station 105. UE 115 may begin using one or more TCI states after a delay that begins after receiving an indication of one or more TCI states or sending an uplink transmission corresponding to the same indication carrying one or more TCI states.

[0090] exist Figure 4 In one example, base station 105 may send DCI 405 to UE 115, and DCI 405 may include a first indication of one or more TCI states for communication between UE 115 and base station 105, and a second indication of one or more SRS sets 410 scheduled for transmission by UE 115. In some implementations, UE 115 may initiate TCI state-based communication 415 with base station 105 (e.g., using at least one TCI state among one or more indicated TCI states) after a delay 420 in a first time slot (or a TTI of different lengths), the delay 420 being at least [missing information] after receiving DCI 405 with a first indication of one or more TCI states. X ms or Y After a symbol.

[0091] Alternatively, UE 115 and base station 105 may use a transmission of one of the SRS sets 410 from one or more SRS sets 410 as an implicit acknowledgment of a first indication of one or more TCI states, and may initiate a delay 425 during the transmission of one of the SRS sets 410 from one or more SRS sets 410. That is, if DCI 405 carrying a first indication of one or more TCI states also schedules one or more SRS sets 410, the SRS transmission can be used as an acknowledgment of one or more TCI states. Subsequently, UE 115 may apply the indicated TCI state to TCI state-based communication 415 in a first time slot, which begins with at least one (e.g., first or last) symbol of a scheduled SRS transmission, one (e.g., first or last) symbol of a transmission of multiple SRS repetitions scheduled by DCI 405 (e.g., actual or nominal), a transmission of one (e.g., lowest or highest) SRS resource set ID (if DCI 405 triggers multiple SRS resource sets), or any combination thereof. X ms or Y A symbol.

[0092] For example, before applying the indicated TCI state to TCI state-based communication 415, UE 115 may use delay 425-a, which starts from the first symbol of the first SRS set scheduled by DCI 405. Alternatively, before applying the indicated TCI state to TCI state-based communication 415, UE 115 may use delay 425-b, which starts from the last symbol of the last SRS set scheduled by DCI 405. Although in Figure 4 The examples show delays 425-a and 425-b, but various different delays can be used, such as different delays starting from the first or last symbol of another SRS set scheduled by DCI 405.

[0093] Figure 5An example of a timeline 500 supporting acknowledgment indications for DCI-based transmissions according to various aspects of this disclosure is shown. Timeline 500 may be implemented by, or can be implemented by, various aspects of wireless communication systems 100 and 200. For example, UE 115 and base station 105 may use timeline 500 to determine when UE 115 will begin communicating with base station 105 using one or more TCI states (e.g., beams) indicated by base station 105. UE 115 may begin using one or more TCI states after a delay that begins after receiving an indication of one or more TCI states or sending an uplink transmission corresponding to the same indication carrying one or more TCI states.

[0094] exist Figure 5 In one example, base station 105 may send DCI 505 to UE 115, and DCI 505 may include a first indication of one or more TCI states for communication between UE 115 and base station 105, and a second indication of one or more CSI reports 510 scheduled to be sent by UE 115 (e.g., a CSI request for a semi-periodic CSI report on PUSCH, an aperiodic CSI report on PUSCH, or an aperiodic CSI report on PUCCH). In some implementations, UE 115 may initiate TCI state-based communication 515 with base station 105 (e.g., using at least one of the TCI states indicated by one or more TCI states) after a delay 520 in a first time slot (or a TTI of different lengths), the delay 520 being at least [missing information] after receiving DCI 505 with a first indication of one or more TCI states. X ms or Y After a symbol.

[0095] Alternatively, UE 115 and base station 105 may use the transmission of one of the one or more CSI reports 510 as an implicit acknowledgment of a first indication of one or more TCI states, and may initiate a delay 525 during the transmission of one of the one or more CSI reports 510. That is, if DCI 505 carrying a first indication of one or more TCI states also schedules one or more CSI reports 510, the CSI report transmission can be used as an acknowledgment indication of one or more TCI states. Subsequently, UE 115 may apply the indicated TCI state to TCI state-based communication 415 in a first time slot, which begins with at least one (e.g., the first or last) symbol of a scheduled CSI report transmission or one (e.g., the actual or nominal) symbol of a plurality of CSI report transmissions scheduled by DCI 505 (e.g., having repeated CSI reports on different beams or for different TRPs). X ms or Y For example, before applying the indicated TCI state to TCI state-based communication 515, UE 115 may use delay 525-a, which starts from the first symbol of the first CSI report scheduled by DCI 505. Alternatively, before applying the indicated TCI state to TCI state-based communication 515, UE 115 may use delay 525-b, which starts from the last symbol of the last CSI report scheduled by DCI 505.

[0096] Despite Figure 5The example illustrates delays 525-a and 525-b, but different delays starting from the first or last symbol of other CSI reports scheduled by DCI 505 can be used. Alternatively, if uplink transmission does not require CSI reports, UE 115 may ignore the first indication of one or more TCI states in DCI 505. For example, if DCI 505 instructs UE 115 to use CSI to perform beamfining procedures (e.g., P3 L1 beam manipulation) or measurement operations, and a CSI report is not required, UE 115 may avoid TCI state-based communication 515 (UE 115 may continue to communicate with base station 105, but may not use the indicated one or more TCI states for communication). In some examples, when DCI 505 is detected to have a specific DCI format (e.g., DCI format 0_1) (which has a non-zero input for one of the DCI fields (e.g., “CSI Request” in the DCI field has a non-zero value)), and the RRC configuration indicates that the input in DCI 505 does not trigger a CSI report (e.g., for one or more CSI reports triggered by “CSI Request” in DCI 505, the associated “reportQuantity” value in CSI-ReportConfig is set to “None”), then UE 115 may ignore one or more TCI states indicated by DCI 505 (e.g., UE 115 may avoid communication 515 based on TCI state).

[0097] Figure 6 An example of a timeline 600 supporting acknowledgment indications for DCI-based transmissions according to various aspects of this disclosure is shown. Timeline 600 may be implemented by, or can be implemented by, various aspects of wireless communication systems 100 and 200. For example, UE 115 and base station 105 may use timeline 600 to determine when UE 115 will begin communicating with base station 105 using one or more TCI states (e.g., beams) indicated by base station 105. UE 115 may begin using one or more TCI states after a delay that begins after receiving an indication of one or more TCI states or sending an uplink transmission corresponding to the same indication carrying one or more TCI states.

[0098] exist Figure 4In the example, base station 105 may send DCI 605 to UE 115, and DCI 605 may include a first indication of one or more TCI states for communication between UE 115 and base station 105, and a second indication of activating one or more SPSPDSCH 610. Additionally, UE 115 may be configured to send ACK / NACK feedback for each of the one or more SPSPDSCH 610. In some implementations, UE 115 may initiate TCI state-based communication 615 with base station 105 (e.g., using at least one TCI state among one or more indicated TCI states) after a delay 620 in a first time slot (or a TTI of varying lengths), the delay 620 being at least [missing information] after receiving DCI 605 with a first indication of one or more TCI states. X ms or Y After a symbol.

[0099] Alternatively, UE 115 and base station 105 may use the transmission of ACK / NACK feedback for at least one of one or more SPS PDSCH 610 as an implicit acknowledgment of a first indication of one or more TCI states, and may initiate delay 625 during the transmission of ACK / NACK feedback for at least one of one or more SPS PDSCH 610. That is, if DCI 605 carrying a first indication of one or more TCI states also schedules one or more SPS PDSCH 610, then ACK / NACK feedback for the SPS PDSCH can be used as an acknowledgment indication of one or more TCI states. Subsequently, UE 115 may apply the indicated TCI state to TCI state-based communication 615 in a first time slot, which begins with at least one (e.g., first or last) symbol of an ACK / NACK feedback transmission for an SPS PDSCH or one (e.g., first or last) symbol of a transmission of multiple ACK / NACK feedback transmissions for one or more SPS PDSCHs 610 scheduled by DCI 605. X ms or Y A symbol.

[0100] For example, before applying the indicated TCI state to TCI state-based communication 615, UE 115 may use delay 625-a, which begins with the first symbol of the ACK / NACK feedback transmission for the first SPS PDSCH scheduled by DCI 605. Alternatively, before applying the indicated TCI state to TCI state-based communication 615, UE 115 may use delay 625-b, which begins with the last symbol of the ACK / NACK feedback transmission for the last SPS PDSCH scheduled by DCI 605. Although in Figure 6 The examples show delays 625-a and 625-b, but various different delays can be used, such as different delays starting from the first or last symbol of the other ACK / NACK feedback transmission from the SPS PDSCH scheduled by the DCI 605.

[0101] Figure 7 An example of a timeline 700 supporting acknowledgment indications for DCI-based transmissions according to various aspects of this disclosure is shown. Timeline 700 may be implemented by, or can be implemented by, various aspects of wireless communication systems 100 and 200. For example, UE 115 and base station 105 may use timeline 700 to determine when UE 115 will begin communicating with base station 105 using one or more TCI states (e.g., beams) indicated by base station 105. UE 115 may begin using one or more TCI states after a delay that begins after receiving an indication of one or more TCI states or sending an uplink transmission corresponding to the same indication carrying one or more TCI states.

[0102] exist Figure 7 In the example, base station 105 may send DCI 705 to UE 115, and DCI 705 may include a first indication of one or more TCI states for UE 115 to use for communication with base station 105 and a second indication of activation (or deactivation) of permission for uplink configuration (e.g., activation or deactivation of configured permission type II). For example, activation of uplink configuration permission may activate one or more configured permission (CG) PUSCH 710 that UE 115 can use to send uplink messages to base station 105. In some implementations, UE 115 may initiate TCI state-based communication 715 with base station 105 (e.g., using at least one of the TCI states indicated by one or more TCI states) after a delay 720 in a first timeslot (or TTI of different lengths), the delay 720 being at least after receiving DCI 705 with a first indication of one or more TCI states. Xms or Y After a symbol.

[0103] Alternatively, UE 115 and base station 105 may use the transmission of acknowledgment message 735 or the transmission of at least one of the configured permitted PUSCH 710 as an implicit acknowledgment of a first indication of one or more TCI states. Subsequently, UE 115 and base station 105 may initiate delay 725 upon transmission of acknowledgment message 735, or may initiate delay 730 upon transmission of at least one of the configured permitted PUSCH 710. That is, if DCI 705 carrying a first indication of one or more TCI states also activates one or more configured permitted PUSCH 710, the acknowledgment message transmission or the configured permitted PUSCH transmission can be used as an acknowledgment indication of one or more TCI states. In some implementations, acknowledgment message 735 may be a configured permitted acknowledgment MAC-CE transmission sent by UE 115 to acknowledge that one or more configured permitted PUSCH 710 has been activated (or deactivated).

[0104] UE 115 may apply the indicated TCI state to TCI state-based communication 715 in a first time slot, which begins with at least one (e.g., first or last) symbol of acknowledgment message 735 or one (e.g., first or last) symbol of a configured permitted PUSCH transmission (e.g., configured permitted type II PUSCH transmission) activated by DCI 705. X ms or Y The symbol. For example, before applying the indicated TCI state to TCI state-based communication 715, UE 115 may use delay 725, which starts from the last symbol of the acknowledgment message 735. Alternatively, before applying the indicated TCI state to TCI state-based communication 715, UE 115 may use delay 730, which starts from the last symbol of the permitted PUSCH in the first configuration activated by DCI 705. In some implementations, base station 105 and UE 115 may use delay 725 or delay 730 based on which of the acknowledgment message 735 or the permitted PUSCH transmission in the first configuration occurs first or last. Although in Figure 7 The example shows delays 725 and 730, but different delays starting from the first or last symbol of acknowledgment message 735, permitted PUSCH transmission in the first configuration, or permitted PUSCH in other configurations activated by DCI 705 can be used.

[0105] Figure 8An example of a process flow 800 supporting an acknowledgment indication for DCI-based transmissions according to various aspects of this disclosure is shown. In some examples, process flow 800 may implement aspects of wireless communication systems 100 and 200, or may be implemented by aspects of wireless communication systems 100 and 200. Process flow 800 may include base station 105-b and UE 115-b, which may be respectively referred to above. Figure 1-7 Examples of the corresponding base station 105 and UE 115 are described.

[0106] In the following description of process flow 800, the operations between UE 115-b and base station 105-b may be performed in different orders or at different times. Some operations may also be omitted from process flow 800, or other operations may be added to process flow 800. It should be understood that although UE 115-b and base station 105-b are shown performing multiple operations of process flow 800, any wireless device can perform the operations shown.

[0107] At 805, UE 115-b can receive DCI messages from base station 105-b, which include a first indication of one or more TCI states for communication with base station 105-b and a second indication corresponding to one or more uplink transmissions sent to base station 105-b.

[0108] At 810, UE 115-b can send at least one of one or more uplink transmissions to base station 105-b based on receiving a DCI including a second indication.

[0109] At point 820, UE 115-b may use one or more TCI states and communicate with base station 105-b after a delay of 815, which is initiated based on sending at least one uplink transmission of one or more uplink transmissions. In some examples, delay 815 may include the amount of time or number of symbols between sending at least one uplink transmission of one or more uplink transmissions and communicating with base station 105-b using one or more TCI states. Alternatively, the delay may be initiated after the start symbol of at least one uplink transmission of one or more uplink transmissions or after the end symbol of at least one uplink transmission of one or more uplink transmissions.

[0110] In some implementations, UE 115-b may receive a DCI message that includes a second indication of scheduling one or more uplink shared channel transmissions (e.g., as referenced). Figure 3(as described), wherein at least one of the one or more uplink transmissions includes at least one of the one or more uplink shared channel transmissions, and the delay is initiated based on sending at least one of the one or more uplink shared channel transmissions.

[0111] In some implementations, UE 115-b may receive a DCI message that includes a second indication of scheduling one or more SRS transmissions (e.g., as referenced). Figure 4 (Described), wherein at least one uplink transmission in one or more uplink transmissions includes at least one SRS transmission in one or more SRS transmissions, and the delay is initiated based on sending at least one SRS transmission in one or more SRS transmissions. In some examples, at least one SRS transmission in one or more SRS transmissions includes the lowest resource set ID or the highest resource set ID in the resource set ID set, each resource set ID in the resource set ID set corresponding to a corresponding SRS transmission in one or more SRS transmissions.

[0112] In some implementations, UE 115-b may receive a DCI message that includes a second indication of scheduling one or more CSI reports (e.g., as referenced). Figure 5 (As described), where at least one uplink transmission in one or more uplink transmissions includes at least one CSI report in one or more CSI reports, and the delay is initiated based on sending at least one CSI report in one or more CSI reports. Alternatively or additionally, UE 115-b may receive an additional DCI message including a first indication of one or more TCI states for communication with base station 105-b and an additional indication for performing CSI measurement operations, and UE 115-b may avoid communicating with base station 105-b using one or more TCI states based on the additional indication in the additional DCI message including the additional indication for performing CSI measurement operations.

[0113] In some implementations, UE 115-b may receive a DCI message that includes a second indication of scheduling one or more SPS downlink channel reception opportunities (e.g., as referenced). Figure 6 (as described), wherein at least one of one or more uplink transmissions includes an acknowledgment feedback message for at least one of one or more SPS downlink channel reception opportunities, and the delay is initiated based on sending the acknowledgment feedback message.

[0114] In some implementations, UE 115-b may receive a DCI message including a second indication, which includes an activation indication for allowing uplink transmissions for one or more configurations (e.g., as shown in reference). Figure 7 (As described), where at least one of one or more uplink transmissions includes an acknowledgment message for activation indication, or at least one of one or more uplink transmissions includes at least one configured permitted uplink transmission of one or more configured permitted uplink transmissions, and the delay is initiated based on sending the acknowledgment message or at least one configured permitted uplink transmission of one or more configured permitted uplink transmissions. For example, the acknowledgment message may include a configured permitted acknowledgment MAC-CE transmission that acknowledges the reception of a DCI message activating one or more configured permitted uplink transmissions.

[0115] In some implementations, UE 115-b may receive additional DCI messages, which include a first indication of one or more TCI states for communication with the base station and an additional indication of sleep for the UE's SCell. In some examples, UE 115-b may avoid communicating with base station 105-b using one or more TCI states based on the additional indications in the additional DCI messages, including the additional indication of sleep for the UE's SCell, and the absence of downlink shared channel reception on the SCell.

[0116] In some implementations, UE 115-b can receive a DCI message that includes a second indication to schedule one or more uplink transmissions in the corresponding transmission opportunity, wherein the delay is initiated based on the transmission opportunity in the corresponding transmission opportunity.

[0117] Figure 9 A block diagram of a device 905 supporting acknowledgment indication for DCI-based transmissions according to various aspects of this disclosure is shown. Device 905 may be an example of various aspects of UE 115 as described herein. Device 905 may include a receiver 910, a transmitter 915, and a communication manager 920. The communication manager 920 may be implemented at least in part by one or both of a modem and a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0118] Receiver 910 may provide a unit for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels associated with acknowledgment indications for DCI-based transmissions). Information may be transmitted to other components of device 905. Receiver 910 may utilize a single antenna or a collection of multiple antennas.

[0119] Transmitter 915 may provide a unit for transmitting signals generated by other components of device 905. For example, transmitter 915 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels associated with acknowledgment indications for DCI-based transmissions). In some examples, transmitter 915 may be co-located with receiver 910 in a transceiver assembly. Transmitter 915 may utilize a single antenna or a collection of multiple antennas.

[0120] The communication manager 920, receiver 910, transmitter 915, or various combinations thereof, or various components thereof, may be examples of units for performing the various aspects of the acknowledgment indication for DCI-based transmissions described herein. For example, the communication manager 920, receiver 910, transmitter 915, or various combinations thereof, or components thereof, may support methods for performing one or more of the functions described herein.

[0121] Alternatively or concurrently, in some examples, the communication manager 920, receiver 910, transmitter 915, or various combinations or components thereof may be implemented using code executed by a processor (e.g., as communication management software or firmware). If implemented using code executed by a processor, the functionality of the communication manager 920, receiver 910, transmitter 915, or various combinations or components thereof may be performed by a general-purpose processor, digital signal processor (DSP), central processing unit (CPU), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), or any combination of these or other programmable logic devices (e.g., units configured or otherwise supported for performing the functions described in this disclosure).

[0122] In some examples, the communication manager 920 can be configured to use or otherwise cooperate with the receiver 910, transmitter 915, or both to perform various operations (e.g., receiving, monitoring, transmitting). For example, the communication manager 920 can receive information from the receiver 910, send information to the transmitter 915, or integrate with the receiver 910, transmitter 915, or both to receive information, send information, or perform various other operations as described herein.

[0123] According to the examples disclosed herein, the communication manager 920 can support wireless communication at the UE. For example, the communication manager 920 can be configured or otherwise supported to support elements for receiving a DCI message from a base station, the DCI message including a first indication of one or more TCI states for communication with the base station and a second indication corresponding to one or more uplink transmissions to be sent to the base station. The communication manager 920 can be configured or otherwise supported to support elements for sending at least one of one or more uplink transmissions to the base station based on receiving the DCI including the second indication. The communication manager 920 can be configured or otherwise supported to support elements for using one or more TCI states and communicating with the base station after a delay initiated based on sending at least one of one or more uplink transmissions.

[0124] By including or configuring the communication manager 920 according to the examples described herein, device 905 (e.g., a processor that controls or is otherwise coupled to receiver 910, transmitter 915, communication manager 920, or any combination thereof) can support techniques for more efficient use of communication resources. For example, instead of sending an explicit acknowledgment message for a first indication received in the DCI for communication with a base station regarding one or more TCI states, device 905 can implicitly acknowledge the first indication for initiating a delay based on sending an uplink message corresponding to a second indication received in the DCI, thereby saving resources and signaling overhead.

[0125] Figure 10 A block diagram of a device 1005 supporting acknowledgment indications for DCI-based transmissions according to various aspects of this disclosure is shown. Device 1005 may be an example of aspects of device 505 or UE 115 as described herein. Device 1005 may include a receiver 1010, a transmitter 1015, and a communication manager 1020. The communication manager 1020 may be implemented at least in part by one or both of a modem and a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0126] Receiver 1010 may provide a unit for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels associated with acknowledgment indications for DCI-based transmissions). Information may be transmitted to other components of device 1005. Receiver 1010 may utilize a single antenna or a collection of multiple antennas.

[0127] Transmitter 1015 may provide a unit for transmitting signals generated by other components of device 1005. For example, transmitter 1015 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels associated with acknowledgment indications for DCI-based transmissions). In some examples, transmitter 1015 may be co-located with receiver 1010 in a transceiver assembly. Transmitter 1015 may utilize a single antenna or a collection of multiple antennas.

[0128] Device 1005 or its various components may be examples of units for performing various aspects of acknowledgment indication for DCI-based transmissions as described herein. For example, communication manager 1020 may include DCI receiving component 1025, uplink transmission component 1030, TCI-based communication component 1035, or any combination thereof. In some examples, communication manager 1020 or its various components may be configured to use receiver 1010, transmitter 1015, or both, or otherwise cooperate with receiver 1010, transmitter 1015, or both to perform various operations (e.g., receiving, monitoring, transmitting). For example, communication manager 1020 may receive information from receiver 1010, send information to transmitter 1015, or integrate with receiver 1010, transmitter 1015, or both to receive information, send information, or perform various other operations as described herein.

[0129] According to the examples disclosed herein, the communication manager 1020 can support wireless communication at the UE. The DCI receiving component 1025 can be configured or otherwise supported to receive a DCI message from a base station, the DCI message including a first indication of one or more TCI states for communication with the base station and a second indication corresponding to one or more uplink transmissions to be sent to the base station. The uplink transmission component 1030 can be configured or otherwise supported to send at least one of one or more uplink transmissions to the base station based on receiving the DCI including the second indication. The TCI-based communication component 1035 can be configured or otherwise supported to communicate with the base station using one or more TCI states and after a delay initiated based on sending at least one of one or more uplink transmissions.

[0130] Figure 11A block diagram of a communication manager 1120 supporting acknowledgment indications for DCI-based transmissions according to various aspects of this disclosure is shown. The communication manager 1120 or its various components may be examples of units for performing the various aspects of acknowledgment indications for DCI-based transmissions as described herein. For example, the communication manager 1120 may include a DCI receiving component 1125, an uplink transmission component 1130, a TCI-based communication component 1135, an uplink shared channel component 1140, an SRS component 1145, a CSI reporting component 1150, an SPS component 1155, a configured permission component 1160, an SCell sleep component 1165, or any combination thereof. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses).

[0131] According to the examples disclosed herein, the communication manager 1120 may support wireless communication at the UE. The DCI receiving component 1125 may be configured or otherwise supported to receive a DCI message from a base station, the DCI message including a first indication of one or more TCI states for communication with the base station and a second indication corresponding to one or more uplink transmissions to be sent to the base station. The uplink transmission component 1130 may be configured or otherwise supported to send at least one of one or more uplink transmissions to the base station based on receiving the DCI including the second indication. The TCI-based communication component 1135 may be configured or otherwise supported to communicate with the base station using one or more TCI states and after a delay initiated based on sending at least one of one or more uplink transmissions.

[0132] In some examples, to support the reception of DCI messages, the uplink shared channel component 1140 may be configured or otherwise supported for receiving a DCI message including a second indication of scheduling one or more uplink shared channel transmissions, wherein at least one of the one or more uplink transmissions includes at least one of the one or more uplink shared channel transmissions, and the delay is initiated based on the transmission of at least one of the one or more uplink shared channel transmissions.

[0133] In some examples, to support receiving DCI messages, SRS component 1145 may be configured or otherwise supported for receiving a DCI message that includes a second indication of scheduling one or more SRS transmissions, wherein at least one of the one or more uplink transmissions includes at least one of the one or more SRS transmissions, and the delay is initiated based on sending at least one of the one or more SRS transmissions.

[0134] In some examples, at least one of the one or more SRSs includes the lowest resource set ID or the highest resource set ID among a plurality of resource set IDs, each of the plurality of resource set IDs corresponding to a corresponding SRS transmission in one or more SRS transmissions.

[0135] In some examples, to support the reception of DCI messages, the CSI reporting component 1150 may be configured or otherwise supported for receiving a unit for receiving a DCI message that includes a second indication of scheduling one or more CSI reports, wherein at least one of the one or more uplink transmissions includes at least one CSI report from one or more CSI reports, and the delay is initiated based on sending at least one of the one or more CSI reports.

[0136] In some examples, the CSI reporting component 1150 may be configured or otherwise supported to receive additional DCI messages, which include a first indication of one or more TCI states for communication with the base station and additional indications for performing CSI measurement operations. In some examples, the CSI reporting component 1150 may be configured or otherwise supported to avoid communicating with the base station using one or more TCI states based on the additional indications in the additional DCI messages, including the indications for performing CSI measurement operations.

[0137] In some examples, to support the reception of DCI messages, the SPS component 1155 may be configured or otherwise supported for receiving a DCI message including a second indication of scheduling one or more SPS downlink channel reception opportunities, wherein at least one of the one or more uplink transmissions includes an acknowledgment feedback message for at least one PSP uplink channel reception opportunity among the one or more SPS uplink channel reception opportunities, and the delay is initiated based on sending the acknowledgment feedback message.

[0138] In some examples, to support receiving DCI messages, the configured permission component 1160 may be configured or otherwise supported for receiving DCI messages including a second indication, the second indication including an activation indication for one or more configured permitted uplink transmissions, wherein at least one of the one or more uplink transmissions includes an acknowledgment message for the activation indication, or at least one of the one or more uplink transmissions includes at least one configured permitted uplink transmission, and the delay is initiated based on sending the acknowledgment message or at least one configured permitted uplink transmission, and the delay is based on sending the acknowledgment message or at least one configured permitted uplink transmission.

[0139] In some examples, the acknowledgment message includes a configured permission acknowledgment MAC-CE transmission that acknowledges the receipt of a DCI message that activates one or more configured permission uplink transmissions.

[0140] In some examples, the SCell sleep component 1165 may be configured or otherwise supported to receive additional DCI messages, which include a first indication of one or more TCI states for communication with the base station and an additional indication of sleep for the SCell for the UE. In some examples, the SCell sleep component 1165 may be configured or otherwise supported to avoid communicating with the base station using one or more TCI states based on the additional indications in the additional DCI messages, including the additional indication of sleep for the SCell for the UE, and the absence of downlink shared channel reception on the SCell.

[0141] In some examples, to support the reception of DCI messages, the DCI receiving component 1125 may be configured or otherwise supported for receiving a unit that includes a second indication of scheduling one or more uplink transmissions in a corresponding transmission opportunity, wherein the delay is initiated based on the transmission opportunity in the corresponding transmission opportunity.

[0142] In some examples, the delay includes the amount of time or number of symbols between sending at least one uplink transmission in one or more uplink transmissions and communicating with the base station using one or more TCI states.

[0143] In some examples, the delay is initiated after the start symbol of at least one uplink transmission in one or more uplink transmissions or after the end symbol of at least one uplink transmission in one or more uplink transmissions.

[0144] Figure 12A diagram of a system including device 1205 supporting acknowledgment indication for DCI-based transmissions is shown according to various aspects of this disclosure. Device 1205 may be an example of device 905, device 1005, or UE 115 as described herein, or may include components thereof. Device 1205 may wirelessly communicate with one or more base stations 105, UE 115, or any combination thereof. Device 1205 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, such as a communication manager 1220, an input / output (I / O) controller 1210, a transceiver 1215, an antenna 1225, a memory 1230, a code 1235, and a processor 1240. These components may be electronically communicated or otherwise coupled via one or more buses (e.g., bus 1245).

[0145] I / O controller 1210 can manage input and output signals for device 1205. I / O controller 1210 can also manage peripheral devices not integrated into device 1205. In some cases, I / O controller 1210 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1210 can utilize an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. Alternatively or concurrently, I / O controller 1210 can represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, I / O controller 1210 can be implemented as part of a processor (such as processor 1240). In some cases, a user can interact with device 1205 via I / O controller 1210 or via hardware components controlled by I / O controller 1210.

[0146] In some cases, device 1205 may include a single antenna 1225. However, in other cases, device 1205 may have more than one antenna 1225, which are capable of simultaneously transmitting or receiving multiple wireless transmissions. Transceiver 1215 may communicate bidirectionally via one or more antennas 1225, wired or wireless links as described herein. For example, transceiver 1215 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. Transceiver 1215 may also include a modem for modulating packets, providing modulated packets to one or more antennas 1225 for transmission, and demodulating packets received from one or more antennas 1225. Transceiver 1215, or transceiver 1215 and one or more antennas 1225, may be an example of transmitter 915, transmitter 1015, receiver 910, receiver 1010, or any combination thereof or components thereof as described herein.

[0147] Memory 1230 may include random access memory (RAM) and read-only memory (ROM). Memory 1230 may store computer-readable, computer-executable code 1235, which includes instructions that, when executed by processor 1240, cause device 1205 to perform the various functions described herein. Code 1235 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, code 1235 may not be directly executable by processor 1240, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein. In some cases, in addition, memory 1230 may also include a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0148] Processor 1240 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 1240 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 1240. Processor 1240 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1230) to cause device 1205 to perform various functions (e.g., functions or tasks supporting acknowledgment indications for DCI-based transfers). For example, device 1205 or components thereof may include processor 1240 and memory 1230 coupled to processor 1240, processor 1240 and memory 1230 being configured to perform the various functions described herein.

[0149] According to the examples disclosed herein, the communication manager 1220 can support wireless communication at the UE. For example, the communication manager 1220 can be configured or otherwise supported to support elements for receiving a DCI message from a base station, the DCI message including a first indication of one or more TCI states for communication with the base station and a second indication corresponding to one or more uplink transmissions to be sent to the base station. The communication manager 1220 can be configured or otherwise supported to support elements for sending at least one of one or more uplink transmissions to the base station based on receiving the DCI including the second indication. The communication manager 1220 can be configured or otherwise supported to support elements for using one or more TCI states and communicating with the base station after a delay initiated based on sending at least one of one or more uplink transmissions.

[0150] By including or configuring the communication manager 1220 according to the examples described herein, device 1205 can support techniques for improving communication reliability, reducing latency, and utilizing communication resources more efficiently. For example, by acknowledging the second indication by sending an uplink transmission scheduled by the same DCI carrying the second indication, the processor of device 1205 can improve communication reliability by using the indicated TCI state after a delay initiated by sending the uplink transmission, and can reduce latency and utilize communication resources more efficiently by not sending a dedicated acknowledgment message for the second indication.

[0151] In some examples, the communication manager 1220 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or in cooperation with transceiver 1215, one or more antennas 1225, or any combination thereof. Although the communication manager 1220 is shown as a separate component, in some examples, one or more functions described with reference to the communication manager 1220 may be supported or performed by processor 1240, memory 1230, code 1235, or any combination thereof. For example, code 1235 may include instructions executable by processor 1240 to cause device 1205 to perform various aspects of acknowledgment indications for DCI-based transmissions as described herein, or processor 1240 and memory 1230 may be otherwise configured to perform or support such operations.

[0152] Figure 13A block diagram of a device 1305 supporting acknowledgment indication for DCI-based transmissions according to various aspects of this disclosure is shown. Device 1305 may be an example of various aspects of base station 105 as described herein. Device 1305 may include a receiver 1310, a transmitter 1315, and a communication manager 1320. The communication manager 1320 may be implemented at least in part by one or both of a modem and a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0153] Receiver 1310 may provide a unit for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels associated with acknowledgment indications for DCI-based transmissions). Information may be passed to other components of device 1305. Receiver 1310 may utilize a single antenna or a collection of multiple antennas.

[0154] Transmitter 1315 may provide a unit for transmitting signals generated by other components of device 1305. For example, transmitter 1315 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels associated with acknowledgment indications for DCI-based transmissions). In some examples, transmitter 1315 may be co-located with receiver 1310 in a transceiver assembly. Transmitter 1315 may utilize a single antenna or a collection of multiple antennas.

[0155] The communication manager 1320, receiver 1310, transmitter 1315, or various combinations thereof, or various components thereof, may be examples of units for performing various aspects of the acknowledgment indications for DCI-based transmissions described herein. For example, the communication manager 1320, receiver 1310, transmitter 1315, or various combinations thereof, or components thereof, may support methods for performing one or more of the functions described herein.

[0156] Alternatively or concurrently, in some examples, the communication manager 1320, receiver 1310, transmitter 1315, or various combinations or components thereof may be implemented using code executed by a processor (e.g., as communication management software or firmware). If implemented using code executed by a processor, the functionality of the communication manager 1320, receiver 1310, transmitter 1315, or various combinations or components thereof may be performed by a general-purpose processor, DSP, CPU, ASIC, FPGA, or any combination of these or other programmable logic devices (e.g., a unit configured or otherwise supported for performing the functions described in this disclosure).

[0157] In some examples, the communication manager 1320 may be configured to use or otherwise cooperate with the receiver 1310, transmitter 1315, or both to perform various operations (e.g., receiving, monitoring, transmitting). For example, the communication manager 1320 may receive information from the receiver 1310, send information to the transmitter 1315, or integrate with the receiver 1310, transmitter 1315, or both to receive information, send information, or perform various other operations as described herein.

[0158] According to the examples disclosed herein, the communication manager 1320 can support wireless communication at a base station. For example, the communication manager 1320 can be configured or otherwise supported to support elements for sending a DCI message to a UE, the DCI message including a first indication of one or more TCI states for communication between the UE and the base station, and a second indication corresponding to one or more uplink transmissions for the UE to send to the base station. The communication manager 1320 can be configured or otherwise supported to support elements for receiving at least one of one or more uplink transmissions from the UE based on sending a DCI including the second indication. The communication manager 1320 can be configured or otherwise supported to support elements for using one or more TCI states and communicating with the UE after a delay initiated based on receiving at least one of one or more uplink transmissions.

[0159] Figure 14 A block diagram of a device 1405 supporting acknowledgment indications for DCI-based transmissions according to various aspects of this disclosure is shown. Device 1405 may be an example of aspects of device 905 or base station 145 as described herein. Device 1405 may include a receiver 1410, a transmitter 1415, and a communication manager 1420. The communication manager 1420 may be implemented at least in part by one or both of a modem and a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0160] Receiver 1410 may provide a unit for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, and information channels associated with acknowledgment indications for DCI-based transmissions). Information may be passed to other components of device 1405. Receiver 1410 may utilize a single antenna or a collection of multiple antennas.

[0161] Transmitter 1415 may provide a unit for transmitting signals generated by other components of device 1405. For example, transmitter 1415 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels associated with acknowledgment indications for DCI-based transmissions). In some examples, transmitter 1415 may be co-located with receiver 1410 in a transceiver assembly. Transmitter 1415 may utilize a single antenna or a collection of multiple antennas.

[0162] Device 1405 or its various components may be examples of units for performing various aspects of acknowledgment indication for DCI-based transmissions as described herein. For example, communication manager 1420 may include DCI indication component 1425, uplink receiving component 1430, TCI-based communication component 1435, or any combination thereof. In some examples, communication manager 1420 or its various components may be configured to use receiver 1410, transmitter 1415, or both, or otherwise cooperate with receiver 1410, transmitter 1415, or both to perform various operations (e.g., receiving, monitoring, transmitting). For example, communication manager 1420 may receive information from receiver 1410, send information to transmitter 1415, or integrate with receiver 1410, transmitter 1415, or both to receive information, send information, or perform various other operations as described herein.

[0163] According to the examples disclosed herein, the communication manager 1420 may support wireless communication at a base station. The DCI indication component 1425 may be configured or otherwise supported to support elements for sending a DCI message to the UE, the DCI message including a first indication of one or more TCI states for communication between the UE and the base station and a second indication corresponding to one or more uplink transmissions for the UE to send to the base station. The uplink receiving component 1430 may be configured or otherwise supported to support elements for receiving at least one of one or more uplink transmissions from the UE based on sending a DCI including the second indication. The TCI-based communication component 1435 may be configured or otherwise supported to support elements for communicating with the UE using one or more TCI states and after a delay initiated based on receiving at least one of one or more uplink transmissions.

[0164] Figure 15A block diagram of a communication manager 1520 supporting acknowledgment indications for DCI-based transmissions according to various aspects of this disclosure is shown. The communication manager 1520 or its various components may be examples of units for performing the various aspects of acknowledgment indications for DCI-based transmissions as described herein. For example, the communication manager 1520 may include a DCI indication component 1525, an uplink receiving component 1530, a TCI-based communication component 1535, an uplink shared channel component 1540, an SRS component 1545, a CSI reporting component 1550, an SPS component 1555, a configured permission component 1560, or any combination thereof. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses).

[0165] According to the examples disclosed herein, the communication manager 1520 can support wireless communication at a base station. The DCI indication component 1525 can be configured or otherwise supported to support elements for sending a DCI message to the UE, the DCI message including a first indication of one or more TCI states for communication between the UE and the base station, and a second indication corresponding to one or more uplink transmissions for the UE to send to the base station. The uplink receiving component 1530 can be configured or otherwise supported to support elements for receiving at least one of one or more uplink transmissions from the UE based on sending a DCI including the second indication. The TCI-based communication component 1535 can be configured or otherwise supported to support elements for communicating with the UE using one or more TCI states and after a delay initiated based on receiving at least one of one or more uplink transmissions.

[0166] In some examples, to support the transmission of DCI messages, the uplink shared channel component 1540 can be configured or otherwise supported for transmitting a DCI message including a second indication of scheduling one or more uplink shared channel transmissions, wherein at least one of the one or more uplink transmissions includes at least one of the one or more uplink shared channel transmissions, and the delay is initiated based on receiving at least one of the one or more uplink shared channel transmissions.

[0167] In some examples, to support the transmission of DCI messages, SRS component 1545 may be configured or otherwise supported as a unit for transmitting DCI messages including a second indication of scheduling one or more SRS transmissions, wherein at least one of the one or more uplink transmissions includes at least one of the one or more SRS transmissions, and the delay is initiated based on receiving at least one of the one or more SRS transmissions.

[0168] In some examples, at least one of the one or more SRSs includes the lowest resource set ID or the highest resource set ID among a plurality of resource set IDs, each of the plurality of resource set IDs corresponding to a corresponding SRS transmission in one or more SRS transmissions.

[0169] In some examples, to support the transmission of DCI messages, the CSI reporting component 1550 can be configured or otherwise supported as a unit for transmitting DCI messages including a second indication of scheduling one or more CSI reports, wherein at least one of the one or more uplink transmissions includes at least one CSI report from the one or more CSI reports, and the delay is initiated based on the receipt of at least one CSI report from the one or more CSI reports.

[0170] In some examples, to support the transmission of DCI messages, the SPS component 1555 may be configured or otherwise supported for transmitting a DCI message including a second indication of scheduling one or more SPS downlink channel reception opportunities, wherein at least one of the one or more uplink transmissions includes an acknowledgment feedback message for at least one PSP uplink channel reception opportunity among the one or more SPS uplink channel reception opportunities, and the delay is initiated based on receiving the acknowledgment feedback message.

[0171] In some examples, to support the transmission of DCI messages, the configured permission component 1560 may be configured or otherwise support a unit for transmitting a DCI message including a second indication, the second indication including an activation indication for one or more configured permitted uplink transmissions, wherein at least one of the one or more uplink transmissions includes an acknowledgment message for the activation indication, or at least one of the one or more uplink transmissions includes at least one configured permitted uplink transmission, and the delay is initiated based on receiving the acknowledgment message or at least one configured permitted uplink transmission, and the delay is initiated based on receiving the acknowledgment message or at least one configured permitted uplink transmission.

[0172] In some examples, the acknowledgment message includes a configured permission acknowledgment MAC-CE transmission that acknowledges the receipt of a DCI message that activates one or more configured permission uplink transmissions.

[0173] In some examples, to support the transmission of DCI messages, the DCI indication component 1525 can be configured or otherwise supported for sending a unit that includes a second indication of scheduling one or more uplink transmissions in the corresponding transmission opportunity, wherein the delay is initiated based on the transmission opportunity in the corresponding transmission opportunity.

[0174] In some examples, the delay includes the amount of time or number of symbols between receiving at least one uplink transmission in one or more uplink transmissions and communicating with the UE using one or more TCI states.

[0175] In some examples, the delay is initiated after the start symbol of at least one uplink transmission in one or more uplink transmissions or after the end symbol of at least one uplink transmission in one or more uplink transmissions.

[0176] Figure 16 A diagram of a system including device 1605 supporting acknowledgment indication for DCI-based transmissions is shown according to various aspects of this disclosure. Device 1605 may be an example of device 1305, device 1405, or base station 105 as described herein, or include components thereof. Device 1605 may wirelessly communicate with one or more base stations 105, UE 115, or any combination thereof. Device 1605 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, such as a communication manager 1620, a network communication manager 1610, a transceiver 1615, an antenna 1625, a memory 1630, a code 1635, a processor 1640, and an inter-station communication manager 1645. These components may be electronically communicated or otherwise coupled (e.g., operational ground, communication ground, functional ground, electronic ground, electrical ground) via one or more buses (e.g., bus 1650).

[0177] The network communication manager 1610 can manage communication with the core network 130 (e.g., via one or more wired backhaul links). For example, the network communication manager 1610 can manage the transmission of data communication to client devices (e.g., one or more UEs 115).

[0178] In some cases, device 1605 may include a single antenna 1625. However, in other cases, device 1605 may have more than one antenna 1625, which are capable of transmitting or receiving multiple wireless transmissions simultaneously. Transceiver 1615 may communicate bidirectionally via one or more antennas 1625, wired or wireless links as described herein. For example, transceiver 1615 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. Transceiver 1615 may also include a modem for modulating packets, providing modulated packets to one or more antennas 1625 for transmission, and demodulating packets received from one or more antennas 1625. Transceiver 1615, or transceiver 1615 and one or more antennas 1625, may be an example of transmitter 1315, transmitter 1415, receiver 1310, receiver 1410, or any combination thereof or components thereof as described herein.

[0179] Memory 1630 may include RAM and ROM. Memory 1630 may store computer-readable, computer-executable code 1635, which includes instructions that, when executed by processor 1640, cause device 1605 to perform the various functions described herein. Code 1635 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, code 1635 may not be directly executable by processor 1640, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein. In some additional cases, memory 1630 may also contain a BIOS, which controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0180] Processor 1640 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 1640 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 1640. Processor 1640 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1630) to cause device 1605 to perform various functions (e.g., functions or tasks supporting acknowledgment indications for DCI-based transfers). For example, device 1605 or components thereof may include processor 1640 and memory 1630 coupled to processor 1640, processor 1640 and memory 1630 being configured to perform the various functions described herein.

[0181] Inter-site communication manager 1645 can manage communication with other base stations 105 and may include a controller or scheduler for cooperating with other base stations 105 to control communication with UE 115. For example, inter-site communication manager 1645 can coordinate the scheduling of transmissions to UE 115 to implement various interference mitigation techniques such as beamforming or joint transmission. In some examples, inter-site communication manager 1645 may provide an X2 interface within LTE / LTE-A wireless communication network technology to facilitate communication between base stations 105.

[0182] According to the examples disclosed herein, the communication manager 1620 can support wireless communication at a base station. For example, the communication manager 1620 can be configured or otherwise supported to support elements for sending a DCI message to a UE, the DCI message including a first indication of one or more TCI states for communication between the UE and the base station and a second indication corresponding to one or more uplink transmissions for the UE to send to the base station. The communication manager 1620 can be configured or otherwise supported to support elements for receiving at least one of one or more uplink transmissions from the UE based on sending a DCI including the second indication. The communication manager 1620 can be configured or otherwise supported to support elements for using one or more TCI states and communicating with the UE after a delay initiated based on receiving at least one of one or more uplink transmissions.

[0183] In some examples, the communication manager 1620 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or in cooperation with transceiver 1615, one or more antennas 1625, or any combination thereof. Although the communication manager 1620 is shown as a separate component, in some examples, one or more functions described with reference to the communication manager 1620 may be supported or executed by processor 1640, memory 1630, code 1635, or any combination thereof. For example, code 1635 may include instructions executable by processor 1640 to cause device 1605 to perform various aspects of acknowledgment indications for DCI-based transmissions as described herein, or processor 1640 and memory 1630 may be otherwise configured to perform or support such operations.

[0184] Figure 17 A flowchart illustrating a method for providing an acknowledgment indication for DCI-based transmissions, according to various aspects of this disclosure, is shown. The operation of this method can be implemented by a UE or its components as described herein. For example, the operation of this method can be implemented by, as referenced... Figures 1 to 12The UE 115 described is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional units of the UE to perform the described function. Alternatively, the UE can use dedicated hardware to perform aspects of the described function.

[0185] At 1705, the method may include: receiving a DCI message from a base station, the DCI message including a first indication of one or more TCI states for communication with the base station and a second indication corresponding to one or more uplink transmissions to be sent to the base station. The operation of 1705 can be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1705 may be derived from references... Figure 11 The code described is used by the DCI receiving component 1125 to perform this action.

[0186] At 1710, the method may include: sending at least one uplink transmission of one or more uplink transmissions to a base station based on receiving a DCI including a second indication. The operation of 1710 can be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1710 may be derived from references... Figure 11 The uplink transmission component 1130 described herein is used to perform this action.

[0187] At 1715, the method may include: using one or more TCI states and communicating with the base station after a delay initiated based on sending at least one of one or more uplink transmissions. The operation of 1715 can be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1715 may be derived from references... Figure 11 The TCI-based communication component 1135 is described to perform this action.

[0188] Figure 18 A flowchart illustrating a method for providing an acknowledgment indication for DCI-based transmissions, according to various aspects of this disclosure, is shown. The operation of this method can be implemented by a base station or its components as described herein. For example, the operation of this method can be implemented by [reference to...] Figure 1-8 The base station 105 described in 13-16 is used to perform this function. In some examples, the base station may execute a set of instructions to control the functional units of the base station to perform the described functions. Alternatively, the base station may use dedicated hardware to perform aspects of the described functions.

[0189] At 1805, the method may include: sending a DCI message to the UE, the DCI message including a first indication of one or more TCI states for the UE to use in communication with the base station and a second indication corresponding to one or more uplink transmissions for the UE to send to the base station. The operation at 1805 can be performed according to examples as disclosed herein. In some examples, aspects of the operation at 1805 may be derived from references... Figure 15 The described DCI instruction component 1525 is used to perform this.

[0190] At 1810, the method may include: receiving at least one uplink transmission from the UE based on transmitting a DCI including a second indication. The operation of 1810 can be performed according to examples as disclosed herein. In some examples, aspects of the operation of 1810 may be provided by reference to... Figure 15 The uplink receiving component 1530 described is used to perform this action.

[0191] At 1815, the method may include: using one or more TCI states and communicating with the UE after a delay initiated based on receiving at least one of one or more uplink transmissions. The operation at 1815 can be performed according to examples as disclosed herein. In some examples, aspects of the operation at 1815 may be provided by reference to... Figure 15 The TCI-based communication component 1535 is described for execution.

[0192] The following provides a summary of various aspects of this disclosure:

[0193] Aspect 1: A method for wireless communication at a UE, comprising: receiving a downlink control information message from a base station, the downlink control information message including a first indication of one or more transmission configuration indicator states for communication with the base station and a second indication corresponding to one or more uplink transmissions to be transmitted to the base station; transmitting at least one of the one or more uplink transmissions to the base station based at least in part on receiving the downlink control information including the second indication; and communicating with the base station using the one or more transmission configuration indicator states and after a delay, the delay being initiated at least in part on transmitting the at least one of the one or more uplink transmissions.

[0194] Aspect 2: According to the method of aspect 1, receiving the downlink control information message includes: receiving the downlink control information message including a second indication of scheduling one or more uplink shared channel transmissions, wherein the at least one uplink transmission among the one or more uplink transmissions includes at least one uplink shared channel transmission among the one or more uplink transmissions, and the delay is initiated at least in part based on sending the at least one uplink shared channel transmission among the one or more uplink transmissions.

[0195] Aspect 3: According to the method of aspect 1, receiving the downlink control information message includes: receiving the downlink control information message including a second indication of scheduling one or more probe reference signal transmissions, wherein the at least one uplink transmission in the one or more uplink transmissions includes at least one probe reference signal transmission in the one or more probe reference signal transmissions, and the delay is initiated at least in part based on sending the at least one probe reference signal transmission in the one or more probe reference signal transmissions.

[0196] Aspect 4: According to the method of aspect 3, wherein the at least one of the one or more probe reference signals includes the lowest resource set identifier or the highest resource set identifier among a plurality of resource set identifiers, each of the plurality of resource set identifiers corresponding to a corresponding probe reference signal among the one or more probe reference signals.

[0197] Aspect 5: According to the method of aspect 1, receiving the downlink control information message includes: receiving the downlink control information message including a second indication of scheduling one or more channel state information reports, wherein the at least one uplink transmission in the one or more uplink transmissions includes at least one channel state information report in the one or more channel state information reports, and the delay is initiated at least in part based on sending the at least one channel state information report in the one or more channel state information reports.

[0198] Aspect 6: The method according to aspects 1 to 5 further includes: receiving an additional downlink control information message, the additional downlink control information message including a first indication of the state of the one or more transmission configuration indicator for communication with the base station and an additional indication for performing a channel state information measurement operation; and avoiding communication with the base station using the one or more transmission configuration indicator states, at least in part based on the additional indication in the additional downlink control information message including the indication for performing the channel state information measurement operation.

[0199] Aspect 7: According to the method of aspect 1, receiving the downlink control information message includes: receiving the downlink control information message including a second indication of scheduling one or more semi-persistent downlink channel reception opportunities, wherein the at least one uplink transmission in the one or more uplink transmissions includes an acknowledgment feedback message for at least one semi-persistent downlink channel reception opportunity in the one or more semi-persistent downlink channel reception opportunities, and the delay is initiated at least in part based on sending the acknowledgment feedback message.

[0200] Aspect 8: According to the method of Aspect 1, receiving the downlink control information message includes: receiving the downlink control information message including the second indication, the second indication including an activation indication for one or more configured permitted uplink transmissions, wherein at least one of the one or more uplink transmissions includes an acknowledgment message for the activation indication, or the at least one of the one or more uplink transmissions includes at least one configured permitted uplink transmission among the one or more configured permitted uplink transmissions, and the delay is initiated at least in part based on sending the acknowledgment message or the at least one configured permitted uplink transmission among the one or more configured permitted uplink transmissions.

[0201] Aspect 9: According to the method of aspect 8, wherein the confirmation message includes a configured permission confirmation medium access control element transmission, the configured permission confirmation medium access control element transmission confirming the reception of the downlink control information message that activates the one or more configured permission uplink transmissions.

[0202] Aspect 10: The method according to any one of Aspects 1 to 9 further includes: receiving an additional downlink control information message, the additional downlink control information message including a first indication of the one or more transmission configuration indicator states for communication with the base station and an additional indication of sleep for a secondary cell for the UE; and avoiding communication with the base station using the one or more transmission configuration indicator states based at least in part on the additional indication in the additional downlink control information message including the indication of sleep for the secondary cell for the UE and the absence of downlink shared channel reception on the secondary cell.

[0203] Aspect 11: The method according to any one of Aspects 1 to 10, wherein receiving the downlink control information message comprises: receiving the downlink control information message including a second indication of scheduling the one or more uplink transmissions in a corresponding transmission opportunity, wherein the delay is initiated at least in part based on a transmission opportunity in the corresponding transmission opportunity.

[0204] Aspect 12: The method according to any one of Aspects 1 to 11, wherein the delay includes the amount of time or number of symbols between the transmission of at least one uplink transmission in the transmission of the one or more uplink transmissions and the communication with the base station using the state of the one or more transmission configuration indicators.

[0205] Aspect 13: The method according to any one of Aspects 1 to 12, wherein the delay is initiated after the start symbol of at least one uplink transmission in one or more uplink transmissions or after the end symbol of at least one uplink transmission in one or more uplink transmissions.

[0206] Aspect 14: A method for wireless communication at a base station, comprising: sending a downlink control information message to a UE, the downlink control information message including a first indication of one or more transmission configuration indicator states for the UE to communicate with the base station and a second indication corresponding to one or more uplink transmissions to be transmitted by the UE to the base station; receiving at least one of the one or more uplink transmissions from the UE based at least in part on sending the downlink control information including the second indication; and communicating with the UE using the one or more transmission configuration indicator states and after a delay, the delay being initiated at least in part on receiving the at least one of the one or more uplink transmissions.

[0207] Aspect 15: The method according to aspect 14, wherein sending the downlink control information message comprises: sending the downlink control information message including a second indication of scheduling one or more uplink shared channel transmissions, wherein the at least one uplink transmission among the one or more uplink transmissions includes at least one uplink shared channel transmission among the one or more uplink transmissions, and the delay is initiated at least in part based on receiving the at least one uplink shared channel transmission among the one or more uplink shared channel transmissions.

[0208] Aspect 16: According to the method of aspect 14, sending the downlink control information message includes: sending the downlink control information message including a second indication of scheduling one or more probe reference signal transmissions, wherein the at least one uplink transmission in the one or more uplink transmissions includes at least one probe reference signal transmission in the one or more probe reference signal transmissions, and the delay is initiated at least in part based on receiving the at least one probe reference signal transmission in the one or more probe reference signal transmissions.

[0209] Aspect 17: According to the method of aspect 16, wherein the at least one of the one or more probe reference signals includes the lowest resource set identifier or the highest resource set identifier among a plurality of resource set identifiers, each of the plurality of resource set identifiers corresponding to a corresponding probe reference signal among the one or more probe reference signals.

[0210] Aspect 18: According to the method of aspect 14, sending the downlink control information message includes: sending the downlink control information message including a second indication of scheduling one or more channel state information reports, wherein the at least one uplink transmission in the one or more uplink transmissions includes at least one channel state information report of the one or more channel state information reports, and the delay is initiated at least in part based on receiving the at least one channel state information report of the one or more channel state information reports.

[0211] Aspect 19: According to the method of aspect 14, sending the downlink control information message includes: sending the downlink control information message including a second indication of scheduling one or more semi-persistent downlink channel reception opportunities, wherein the at least one uplink transmission in the one or more uplink transmissions includes an acknowledgment feedback message for at least one semi-persistent downlink channel reception opportunity in the one or more semi-persistent downlink channel reception opportunities, and the delay is initiated at least in part based on receiving the acknowledgment feedback message.

[0212] Aspect 20: The method according to aspect 14, wherein sending the downlink control information message comprises: sending the downlink control information message including the second indication, the second indication including an activation indication for one or more configured permitted uplink transmissions, wherein at least one of the one or more uplink transmissions includes an acknowledgment message for the activation indication, or the at least one of the one or more uplink transmissions includes at least one configured permitted uplink transmission among the one or more configured permitted uplink transmissions, and the delay is initiated at least in part based on receiving the acknowledgment message or the at least one configured permitted uplink transmission among the one or more configured permitted uplink transmissions.

[0213] Aspect 21: According to the method of aspect 20, wherein the confirmation message includes a configured permission confirmation medium access control element transmission, the configured permission confirmation medium access control element transmission confirming the reception of the downlink control information message of the one or more configured permission uplink transmissions at the active UE.

[0214] Aspect 22: The method according to any one of Aspects 14 to 21, wherein sending the downlink control information message comprises: sending the downlink control information message including a second indication of scheduling the one or more uplink transmissions in the corresponding transmission opportunity, wherein the delay is initiated at least in part based on the transmission opportunity in the corresponding transmission opportunity.

[0215] Aspect 23: The method according to any one of Aspects 14 to 22, wherein the delay includes the amount of time or number of symbols between receiving the at least one uplink transmission in the one or more uplink transmissions and communicating with the UE using the one or more transmission configuration indicator states.

[0216] Aspect 24: The method according to any one of aspects 14 to 23, wherein the delay is initiated after the start symbol of at least one uplink transmission in one or more uplink transmissions or after the end symbol of at least one uplink transmission in one or more uplink transmissions.

[0217] Aspect 25: An apparatus for wireless communication at a UE, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to any one of aspects 1 to 13.

[0218] Aspect 26: An apparatus for wireless communication at a UE, comprising at least one unit for performing the method according to any one of aspects 1 to 13.

[0219] Aspect 27: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method according to any one of aspects 1 to 13.

[0220] Aspect 28: An apparatus for wireless communication at a base station, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to any one of aspects 14 to 24.

[0221] Aspect 29: An apparatus for wireless communication at a base station, comprising at least one unit for performing the method according to any one of aspects 14 to 24.

[0222] Aspect 30: A non-transitory computer-readable medium storing code for wireless communication at a base station, said code including instructions executable by a processor to perform a method according to any one of aspects 14 to 24.

[0223] It should be noted that the methods described in this paper describe possible implementations, and the operations and steps can be rearranged or otherwise modified, and other implementations are possible. Furthermore, aspects from two or more methods can be combined.

[0224] While aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for illustrative purposes, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used in much of the description, the techniques described herein apply beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described can be applied to a variety of other wireless communication systems, such as Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0225] The information and signals described herein can be represented using any of a variety of different techniques and methods. For example, the data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.

[0226] The various illustrative blocks and components described herein can be implemented or performed using a general-purpose processor, DSP, ASIC, CPU, FPGA, or other programmable logic device, discrete gate or transistor logic, discrete hardware component, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but alternatively, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration).

[0227] The functions described herein can be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions can be stored as one or more instructions or code on or transmitted through a computer-readable medium. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein can be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination of these. Features implementing the functions can also be physically located in various locations, including being distributed such that different parts of the functions are implemented in different physical locations.

[0228] Computer-readable media includes both non-transitory computer storage media and communication media, with communication media encompassing any medium that facilitates the transfer of computer programs from one place to another. Non-transitory storage media can be any available medium accessible by a general-purpose computer or a special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compressed optical disc (CD) ROM or other optical disc storage, disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired units of program code in the form of instructions or data structures, and accessible by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Furthermore, any connection is appropriately referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included within the definition of computer-readable media. As used herein, disks and optical discs include CDs, laser discs, optical discs, digital multifunction discs (DVDs), floppy disks, and Blu-ray discs, wherein disks typically copy data magnetically, while optical discs use lasers to copy data optically. The combinations described above are also included within the scope of computer-readable media.

[0229] As used herein (including in the claims), the word "or" in a list of items (e.g., a list of items ending with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, such that a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (e.g., A and B and C). Furthermore, as used herein, the phrase "based on" should not be construed as a reference to a closed set of conditions. For example, an example step described as "based on condition A" could be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same way as the phrase "at least partially based on".

[0230] In the accompanying drawings, similar components or features may have the same reference numerals. Furthermore, various components of the same type can be distinguished by a dash and a second reference numeral following the reference numeral, used to differentiate between similar components. If only the first reference numeral is used in the specification, the description applies to any one of the similar components having the same first reference numeral, without regard to the second reference numeral or other subsequent reference numerals.

[0231] This document describes exemplary configurations in conjunction with the accompanying drawings, and does not represent all examples that can be implemented or that are within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration," and not "preferred" or "advantageous over other examples." The detailed description includes specific details for the purpose of providing an understanding of the described techniques. However, these techniques can be implemented without these specific details. In some cases, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0232] The description herein is provided to enable those skilled in the art to implement or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of the disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but is to be given the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a user equipment (UE), comprising: Receive downlink control information messages from a base station, the downlink control information messages including a first indication of the status of one or more transmission configuration indicator for communication with the base station and a second indication corresponding to one or more uplink transmissions to be sent to the base station; At least in part, based on receiving the downlink control information message including the second indication, the base station sends at least one uplink transmission of the one or more uplink transmissions as an implicit acknowledgment message for the downlink control information message; as well as Based on the implicit acknowledgment message, communication with the base station is initiated using the one or more transmission configuration indicator states and after a delay, the delay being initiated at least in part based on the transmission of at least one of the one or more uplink transmissions, wherein the delay includes the amount of time or number of symbols between the transmission of at least one of the one or more uplink transmissions and the communication with the base station using the one or more transmission configuration indicator states.

2. The method according to claim 1, wherein, Receiving the downlink control information message includes: receiving the downlink control information message including a second indication of scheduling one or more uplink shared channel transmissions, wherein the at least one uplink transmission in the one or more uplink transmissions includes at least one uplink shared channel transmission in the one or more uplink transmissions, and the delay is initiated at least in part based on sending the at least one uplink shared channel transmission in the one or more uplink transmissions.

3. The method according to claim 1, wherein, Receiving the downlink control information message includes: receiving the downlink control information message including a second indication of scheduling one or more probe reference signal transmissions, wherein the at least one uplink transmission in the one or more uplink transmissions includes at least one probe reference signal transmission in the one or more probe reference signal transmissions, and the delay is initiated at least in part based on sending the at least one probe reference signal transmission in the one or more probe reference signal transmissions.

4. The method according to claim 3, wherein, The at least one probe reference signal transmission in the one or more probe reference signal transmissions includes the lowest resource set identifier or the highest resource set identifier among a plurality of resource set identifiers, each of the plurality of resource set identifiers corresponding to a corresponding probe reference signal transmission in the one or more probe reference signal transmissions.

5. The method according to claim 1, wherein, Receiving the downlink control information message includes: receiving the downlink control information message including a second indication of scheduling one or more channel state information reports, wherein the at least one uplink transmission in the one or more uplink transmissions includes at least one channel state information report from the one or more channel state information reports, and the delay is initiated at least in part based on sending the at least one channel state information report from the one or more channel state information reports.

6. The method according to claim 1, further comprising: Receive additional downlink control information messages, the additional downlink control information messages including a first indication of the state of the one or more transmission configuration indicator states for communication with the base station and an additional indication for performing channel state information measurement operations; and The use of the one or more transport configuration indicator states to communicate with the base station is avoided, at least in part, based on the additional indications in the additional downlink control information messages, including the additional indications for performing the channel state information measurement operation.

7. The method according to claim 1, wherein, Receiving the downlink control information message includes: receiving the downlink control information message including a second indication of scheduling one or more semi-persistent downlink channel reception opportunities, wherein the at least one uplink transmission in the one or more uplink transmissions includes an acknowledgment feedback message for at least one semi-persistent downlink channel reception opportunity in the one or more semi-persistent downlink channel reception opportunities, and the delay is initiated at least in part based on sending the acknowledgment feedback message.

8. The method according to claim 1, wherein, Receiving the downlink control information message includes: receiving the downlink control information message including the second indication, the second indication including an activation indication for one or more configured permitted uplink transmissions, wherein at least one of the one or more uplink transmissions includes an acknowledgment message for the activation indication, or the at least one of the one or more uplink transmissions includes at least one configured permitted uplink transmission among the one or more configured permitted uplink transmissions, and the delay is initiated at least in part based on sending the acknowledgment message or the at least one configured permitted uplink transmission among the one or more configured permitted uplink transmissions.

9. The method according to claim 8, wherein, The confirmation message includes a configured permission confirmation medium access control element transmission, which confirms receipt of the downlink control information message that activates one or more configured permission uplink transmissions.

10. The method according to claim 1, further comprising: Receive additional downlink control information messages, the additional downlink control information messages including a first indication of the state of the one or more transmission configuration indicator states for communication with the base station and an additional indication of sleep status for the secondary cell of the UE; and At least in part, based on the additional indication in the additional downlink control information message, including the additional indication for the sleep of the secondary cell for the UE, and the absence of downlink shared channel reception on the secondary cell, communication with the base station using the one or more transport configuration indicator states is avoided.

11. The method according to claim 1, wherein, Receiving the downlink control information message includes: receiving the downlink control information message including a second indication of scheduling the one or more uplink transmissions in the corresponding transmission opportunity, wherein the delay is initiated at least in part based on the transmission opportunity in the corresponding transmission opportunity.

12. The method according to claim 1, wherein, The delay is initiated after the start symbol of at least one uplink transmission in one or more uplink transmissions or after the end symbol of at least one uplink transmission in one or more uplink transmissions.

13. A method for wireless communication at a base station, comprising: Send a downlink control information message to a user equipment (UE), the downlink control information message including a first indication of the state of one or more transmission configuration indicators for the UE to use in communication with the base station and a second indication corresponding to one or more uplink transmissions to be sent by the UE to the base station; At least in part, the UE receives at least one uplink transmission from the one or more uplink transmissions as an implicit acknowledgment message for the downlink control information message, based on sending the downlink control information message including the second indication. as well as Based on the implicit acknowledgment message, communication is initiated with the UE using the one or more transmission configuration indicator states and after a delay, the delay being initiated at least in part based on the receipt of at least one of the one or more uplink transmissions, wherein the delay includes the amount of time or number of symbols between the receipt of at least one of the one or more uplink transmissions and the communication with the UE using the one or more transmission configuration indicator states.

14. The method according to claim 13, wherein, Sending the downlink control information message includes: sending the downlink control information message including a second indication of scheduling one or more uplink shared channel transmissions, wherein the at least one uplink transmission in the one or more uplink transmissions includes at least one uplink shared channel transmission in the one or more uplink transmissions, and the delay is initiated at least in part based on receiving the at least one uplink shared channel transmission in the one or more uplink transmissions.

15. The method according to claim 13, wherein, Sending the downlink control information message includes: sending the downlink control information message including a second indication of scheduling one or more probe reference signal transmissions, wherein the at least one uplink transmission in the one or more uplink transmissions includes at least one probe reference signal transmission in the one or more probe reference signal transmissions, and the delay is initiated at least in part based on receiving the at least one probe reference signal transmission in the one or more probe reference signal transmissions.

16. The method according to claim 15, wherein, The at least one probe reference signal transmission in the one or more probe reference signal transmissions includes the lowest resource set identifier or the highest resource set identifier among a plurality of resource set identifiers, each of the plurality of resource set identifiers corresponding to a corresponding probe reference signal transmission in the one or more probe reference signal transmissions.

17. The method according to claim 13, wherein, Sending the downlink control information message includes: sending the downlink control information message including a second indication of scheduling one or more channel state information reports, wherein the at least one uplink transmission in the one or more uplink transmissions includes at least one channel state information report from the one or more channel state information reports, and the delay is initiated at least in part based on receiving the at least one channel state information report from the one or more channel state information reports.

18. The method according to claim 13, wherein, Sending the downlink control information message includes: sending the downlink control information message including a second indication of scheduling one or more semi-persistent downlink channel reception opportunities, wherein the at least one uplink transmission in the one or more uplink transmissions includes an acknowledgment feedback message for at least one semi-persistent downlink channel reception opportunity in the one or more semi-persistent downlink channel reception opportunities, and the delay is initiated at least in part based on receiving the acknowledgment feedback message.

19. The method according to claim 13, wherein, Sending the downlink control information message includes: sending the downlink control information message including the second indication, the second indication including an activation indication for one or more configured permitted uplink transmissions, wherein at least one of the one or more uplink transmissions includes an acknowledgment message for the activation indication, or the at least one of the one or more uplink transmissions includes at least one configured permitted uplink transmission among the one or more configured permitted uplink transmissions, and the delay is initiated at least in part based on receiving the acknowledgment message or the at least one configured permitted uplink transmission among the one or more configured permitted uplink transmissions.

20. The method according to claim 19, wherein, The confirmation message includes a configured permission confirmation medium access control element transmission, which confirms receipt of the downlink control information message that enables one or more configured permission uplink transmissions at the UE.

21. The method according to claim 13, wherein, Sending the downlink control information message includes sending the downlink control information message including a second indication of scheduling the one or more uplink transmissions in the corresponding transmission opportunity, wherein the delay is initiated at least in part based on the transmission opportunity in the corresponding transmission opportunity.

22. The method according to claim 13, wherein, The delay is initiated after the start symbol of at least one uplink transmission in one or more uplink transmissions or after the end symbol of at least one uplink transmission in one or more uplink transmissions.

23. An apparatus for wireless communication at a user equipment (UE), comprising: processor; Memory coupled to the processor; as well as Instructions, which are stored in the memory and can be executed by the processor, cause the device to perform the following operations: Receive downlink control information messages from a base station, the downlink control information messages including a first indication of the status of one or more transmission configuration indicator for communication with the base station and a second indication corresponding to one or more uplink transmissions to be sent to the base station; At least in part, based on receiving the downlink control information message including the second indication, the base station sends at least one uplink transmission of the one or more uplink transmissions as an implicit acknowledgment message for the downlink control information message; as well as Based on the implicit acknowledgment message, communication with the base station is initiated using the one or more transmission configuration indicator states and after a delay, the delay being initiated at least in part based on the transmission of at least one of the one or more uplink transmissions, wherein the delay includes the amount of time or number of symbols between the transmission of at least one of the one or more uplink transmissions and the communication with the base station using the one or more transmission configuration indicator states.

24. The apparatus according to claim 23, wherein, The instruction for receiving the downlink control information message can be executed by the processor to cause the device to perform the following operation: receiving the downlink control information message including a second indication of scheduling one or more uplink shared channel transmissions, wherein the at least one uplink transmission among the one or more uplink transmissions includes at least one uplink shared channel transmission among the one or more uplink transmissions, and the delay is initiated at least in part based on sending the at least one uplink shared channel transmission among the one or more uplink transmissions.

25. The apparatus according to claim 23, wherein, The instruction for receiving the downlink control information message can be executed by the processor to cause the device to perform the following operation: receiving the downlink control information message including a second indication of scheduling one or more probe reference signal transmissions, wherein the at least one uplink transmission of the one or more uplink transmissions includes at least one probe reference signal transmission of the one or more probe reference signal transmissions, and the delay is initiated at least in part based on sending the at least one probe reference signal transmission of the one or more probe reference signal transmissions.

26. The apparatus according to claim 25, wherein, The at least one probe reference signal transmission in the one or more probe reference signal transmissions includes the lowest resource set identifier or the highest resource set identifier among a plurality of resource set identifiers, each of the plurality of resource set identifiers corresponding to a corresponding probe reference signal transmission in the one or more probe reference signal transmissions.

27. The apparatus according to claim 23, wherein, The instruction for receiving the downlink control information message can be executed by the processor to cause the device to perform the following operation: receiving the downlink control information message including a second indication of scheduling one or more channel state information reports, wherein the at least one uplink transmission in the one or more uplink transmissions includes at least one channel state information report from the one or more channel state information reports, and the delay is initiated at least in part based on sending the at least one channel state information report from the one or more channel state information reports.

28. The apparatus of claim 23, wherein the instructions may also be executed by the processor to cause the apparatus to perform the following operations: Receive additional downlink control information messages, the additional downlink control information messages including a first indication of the state of the one or more transmission configuration indicator states for communication with the base station and an additional indication for performing channel state information measurement operations; and The use of the one or more transport configuration indicator states to communicate with the base station is avoided, at least in part, based on the additional indications in the additional downlink control information messages, including the additional indications for performing the channel state information measurement operation.

29. The apparatus according to claim 23, wherein, The instruction for receiving the downlink control information message can be executed by the processor to cause the device to perform the following operation: receiving the downlink control information message including a second indication of scheduling one or more semi-persistent downlink channel reception opportunities, wherein at least one of the one or more uplink transmissions includes an acknowledgment feedback message for at least one of the one or more semi-persistent downlink channel reception opportunities, and the delay is initiated at least in part based on sending the acknowledgment feedback message.

30. The apparatus according to claim 23, wherein, The instruction for receiving the downlink control information message can be executed by the processor to cause the device to perform the following operations: receive the downlink control information message including the second indication, the second indication including an activation indication for one or more configured permitted uplink transmissions, wherein at least one of the one or more uplink transmissions includes an acknowledgment message for the activation indication, or the at least one of the one or more uplink transmissions includes at least one configured permitted uplink transmission, and the delay is initiated at least in part based on sending the acknowledgment message or the at least one configured permitted uplink transmission, and the delay is initiated based on sending the acknowledgment message or the at least one configured permitted uplink transmission.

31. The apparatus according to claim 30, wherein, The confirmation message includes a configured permission confirmation medium access control element transmission, which confirms receipt of the downlink control information message that activates one or more configured permission uplink transmissions.

32. The apparatus of claim 23, wherein the instructions may also be executed by the processor to cause the apparatus to perform the following operations: Receive additional downlink control information messages, the additional downlink control information messages including a first indication of the state of the one or more transmission configuration indicator states for communication with the base station and an additional indication of sleep status for the secondary cell of the UE; and At least in part, based on the additional indication in the additional downlink control information message, including the additional indication for the sleep of the secondary cell for the UE, and the absence of downlink shared channel reception on the secondary cell, communication with the base station using the one or more transport configuration indicator states is avoided.

33. The apparatus according to claim 23, wherein, The instruction for receiving the downlink control information message can be executed by the processor to cause the device to perform the following operation: receiving the downlink control information message including a second indication of scheduling the one or more uplink transmissions in the corresponding transmission opportunity, wherein the delay is initiated at least in part based on the transmission opportunity in the corresponding transmission opportunity.

34. The apparatus according to claim 23, wherein, The delay is initiated after the start symbol of at least one uplink transmission in one or more uplink transmissions or after the end symbol of at least one uplink transmission in one or more uplink transmissions.

35. An apparatus for wireless communication at a base station, comprising: processor; Memory coupled to the processor; as well as Instructions, which are stored in the memory and can be executed by the processor, cause the device to perform the following operations: Send a downlink control information message to a user equipment (UE), the downlink control information message including a first indication of the state of one or more transmission configuration indicators for the UE to use in communication with the base station and a second indication corresponding to one or more uplink transmissions to be sent by the UE to the base station; At least in part, the UE receives at least one uplink transmission from the one or more uplink transmissions as an implicit acknowledgment message for the downlink control information message, based on sending the downlink control information message including the second indication. as well as Based on the implicit acknowledgment message, communication is initiated with the UE using the one or more transmission configuration indicator states and after a delay, the delay being initiated at least in part based on the receipt of at least one of the one or more uplink transmissions, wherein the delay includes the amount of time or number of symbols between the receipt of at least one of the one or more uplink transmissions and the communication with the UE using the one or more transmission configuration indicator states.

36. The apparatus according to claim 35, wherein, The instruction for sending the downlink control information message can be executed by the processor to cause the device to perform the following operation: sending the downlink control information message including a second indication of scheduling one or more uplink shared channel transmissions, wherein the at least one uplink transmission in the one or more uplink transmissions includes at least one uplink shared channel transmission in the one or more uplink transmissions, and the delay is initiated at least in part based on receiving the at least one uplink shared channel transmission in the one or more uplink transmissions.

37. The apparatus according to claim 35, wherein, The instruction for sending the downlink control information message can be executed by the processor to cause the device to perform the following operation: sending the downlink control information message including a second indication of scheduling one or more probe reference signal transmissions, wherein the at least one uplink transmission of the one or more uplink transmissions includes at least one probe reference signal transmission of the one or more probe reference signal transmissions, and the delay is initiated at least in part based on receiving the at least one probe reference signal transmission of the one or more probe reference signal transmissions.

38. The apparatus according to claim 37, wherein, The at least one probe reference signal transmission in the one or more probe reference signal transmissions includes the lowest resource set identifier or the highest resource set identifier among a plurality of resource set identifiers, each of the plurality of resource set identifiers corresponding to a corresponding probe reference signal transmission in the one or more probe reference signal transmissions.

39. The apparatus according to claim 35, wherein, The instruction for sending the downlink control information message can be executed by the processor to cause the device to perform the following operation: sending the downlink control information message including a second indication of scheduling one or more channel state information reports, wherein the at least one uplink transmission in the one or more uplink transmissions includes at least one channel state information report from the one or more channel state information reports, and the delay is initiated at least in part based on receiving the at least one channel state information report from the one or more channel state information reports.

40. The apparatus according to claim 35, wherein, The instruction for sending the downlink control information message can be executed by the processor to cause the device to perform the following operation: sending the downlink control information message including a second indication of scheduling one or more semi-persistent downlink channel reception opportunities, wherein at least one of the one or more uplink transmissions includes an acknowledgment feedback message for at least one of the one or more semi-persistent downlink channel reception opportunities, and the delay is initiated at least in part based on receiving the acknowledgment feedback message.

41. The apparatus according to claim 35, wherein, The instruction for sending the downlink control information message can be executed by the processor to cause the device to perform the following operations: send the downlink control information message including the second indication, the second indication including an activation indication for one or more configured permitted uplink transmissions, wherein at least one of the one or more uplink transmissions includes an acknowledgment message for the activation indication, or the at least one of the one or more uplink transmissions includes at least one configured permitted uplink transmission, and the delay is initiated at least in part based on receiving the acknowledgment message or the at least one configured permitted uplink transmission, and the delay is initiated based on receiving the acknowledgment message or the at least one configured permitted uplink transmission.

42. The apparatus according to claim 41, wherein, The confirmation message includes a configured permission confirmation medium access control element transmission, which confirms receipt of the downlink control information message that enables one or more configured permission uplink transmissions at the UE.

43. The apparatus according to claim 35, wherein, The instruction for sending the downlink control information message can be executed by the processor to cause the device to perform the following operation: sending the downlink control information message including a second indication of scheduling the one or more uplink transmissions in the corresponding transmission opportunity, wherein the delay is initiated at least in part based on the transmission opportunity in the corresponding transmission opportunity.

44. The apparatus according to claim 35, wherein, The delay is initiated after the start symbol of at least one uplink transmission in one or more uplink transmissions or after the end symbol of at least one uplink transmission in one or more uplink transmissions.

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