Uplink cancellation indication resource determination

Abstract

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for the UE. The UE may also determine, based on the configuration, a control channel resource candidate corresponding to the uplink cancellation indication from the set of control channel resource candidates, and monitor for the uplink cancellation indication in the control channel resource candidate corresponding to the uplink cancellation indication based on the determination.

Description

[0001] Cross-reference

[0002] This patent application claims the benefit of U.S. Provisional Patent Application No. 63 / 021,021, entitled "Uplink Cancellation Indication Resource Determination," filed by Yang et al. on May 6, 2020, and claims the benefit of the following applications: U.S. Provisional Patent Application No. 63 / 025,903, entitled "Uplink Cancellation Indication Resource Determination," filed by YANG et al. on May 15, 2020; and U.S. Patent Application No. 17 / 230,507, entitled "Uplink Cancellation Indication Resource Determination," filed by Yang et al. on April 14, 2021; each of the above applications is assigned to the assignee of the present application. Technical Field

[0003] Generally speaking, the following relates to wireless communication, and more specifically, the following relates to uplink cancellation indication resource determination. Background Art

[0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcasting, etc. These systems are capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multi-access systems include fourth-generation (4G) systems (e.g., Long-Term Evolution (LTE) systems, Advanced 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 may employ techniques 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 Spread Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multi-access communication system may include one or more base stations or one or more network access nodes, each of which simultaneously supports communication for multiple communication devices (which may also be referred to as User Equipment (UE)). Summary of the Invention

[0005] The described technology relates to improved methods, systems, devices, and apparatuses for supporting uplink cancellation indication resource determination. Generally speaking, the described technology provides a user equipment (UE) with a configuration for identifying a control channel resource candidate (e.g., a physical downlink control channel (PDCCH) candidate) corresponding to an uplink cancellation indication (e.g., an uplink transmission cancellation indication) from a set of control channel resource candidates configured for the UE. The UE may determine, based on the identified configuration, a control channel resource candidate corresponding to the uplink cancellation indication from the set of control channel resource candidates. The UE may monitor for the uplink cancellation indication in the control channel resource candidate corresponding to the uplink cancellation indication based on the determination of the control channel resource candidate corresponding to the uplink cancellation indication.

[0006] A method of wireless communication at a UE is described. The method may include: identifying a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for the UE; determining, based on the configuration, the control channel resource candidate corresponding to the uplink cancellation indication from the set of control channel resource candidates; and monitoring for the uplink cancellation indication in the control channel resource candidate corresponding to the uplink cancellation indication based on the determination.

[0007] An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for the UE; determine, based on the configuration, the control channel resource candidate corresponding to the uplink cancellation indication from the set of control channel resource candidates; and monitor for the uplink cancellation indication in the control channel resource candidate corresponding to the uplink cancellation indication based on the determination.

[0008] Another apparatus for wireless communication at a UE is described. The apparatus may include units for: identifying a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for the UE; determining, based on the configuration, the control channel resource candidate corresponding to the uplink cancellation indication from the set of control channel resource candidates; and monitoring for the uplink cancellation indication in the control channel resource candidate corresponding to the uplink cancellation indication based on the determination.

[0009] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to perform the following operations: identifying a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for the UE; determining, based on the configuration, the control channel resource candidate corresponding to the uplink cancellation indication from the set of control channel resource candidates; and monitoring, based on the determination, for the uplink cancellation indication in the control channel resource candidate corresponding to the uplink cancellation indication.

[0010] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, identifying the configuration may further include operations, features, units, or instructions for performing the following operations: identifying a first configuration that indicates that the control channel resource candidate corresponding to the uplink cancellation indication corresponds to a first control channel resource candidate in the set of control channel resource candidates.

[0011] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, units, or instructions for performing the following operations: receiving configuration signaling that configures the UE to monitor a search space in a control resource set using a control channel element aggregation level, wherein the first control channel resource candidate in the set of control channel resource candidates corresponds to a first control channel resource candidate for the aggregation level for the search space in the control resource set.

[0012] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, units, or instructions for performing the following operations: distinguishing between a control channel resource candidate corresponding to the uplink cancellation indication and a control channel resource candidate corresponding to a slot format indicator based on a difference in radio network temporary identifiers for the control channel resource candidate corresponding to the uplink cancellation indication and the control channel resource candidate corresponding to the slot format indicator.

[0013] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, identifying the configuration may further include operations, features, units, or instructions for performing the following operations: identifying a second configuration that indicates that the control channel resource candidate corresponding to the uplink cancellation indication corresponds to a control channel resource candidate immediately following a control channel resource candidate configured for slot format indicator monitoring.

[0014] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: receiving configuration signaling that configures the UE to monitor a slot format indicator with the same aggregation level on the same search space and the same control resource set as those used to monitor the uplink cancellation indication.

[0015] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, identifying the configuration may also include operations, features, units, or instructions for: identifying a second configuration that indicates that a control channel resource candidate configured for slot format indicator monitoring may be configured for a first search space in a first control resource set with a first control channel element aggregation level, wherein the second configuration further indicates that a control channel resource candidate corresponding to the uplink cancellation indication may be configured for a second search space, a second control resource set, a second control channel element aggregation level, or a combination thereof that is different from the first search space, the first control resource set, and the first control channel element aggregation level.

[0016] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: identifying a third configuration that indicates that a control channel resource candidate configured for slot format indicator monitoring and a control channel resource candidate corresponding to the uplink cancellation indication correspond to different blind detections.

[0017] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: decoding a control channel resource candidate corresponding to the uplink cancellation indication before decoding other control channel resource candidates in the same control channel monitoring occasion as the control channel resource candidate corresponding to the uplink cancellation indication, according to a decoding prioritization rule.

[0018] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the control channel resource candidate corresponding to the uplink cancellation indication corresponds to a physical downlink control channel blind decoding candidate.

[0019] A method of wireless communication at a base station is described. The method may include: identifying a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for a UE; and transmitting the uplink cancellation indication on the control channel resource candidate corresponding to the uplink cancellation indication based on the configuration.

[0020] A device for wireless communication at a base station is described. The device may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the device to perform the following operations: identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for a UE; and based on the configuration, transmit the uplink cancellation indication on the control channel resource candidate corresponding to the uplink cancellation indication.

[0021] Another device for wireless communication at a base station is described. The device may include units for performing the following operations: identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for a UE; and based on the configuration, transmit the uplink cancellation indication on the control channel resource candidate corresponding to the uplink cancellation indication.

[0022] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to perform the following operations: identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for a UE; and based on the configuration, transmit the uplink cancellation indication on the control channel resource candidate corresponding to the uplink cancellation indication.

[0023] In some examples of the methods, devices, and non-transitory computer-readable media described herein, identifying the configuration may further include operations, features, units, or instructions for performing the following operations: identify a first configuration that indicates that the control channel resource candidate corresponding to the uplink cancellation indication corresponds to a first control channel resource candidate in the set of control channel resource candidates.

[0024] Some examples of the methods, devices, and non-transitory computer-readable media described herein may further include operations, features, units, or instructions for performing the following operations: transmit configuration signaling that configures the UE to monitor a search space in a control resource set using a control channel element aggregation level, wherein the first control channel resource candidate in the set of control channel resource candidates corresponds to a first control channel resource candidate for the search space in the control resource set for the aggregation level.

[0025] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: distinguishing between a control channel resource candidate corresponding to the uplink cancellation indication and a control channel resource candidate corresponding to the slot format indicator based on a difference in radio network temporary identifiers for the control channel resource candidates corresponding to the uplink cancellation indication and the control channel resource candidates corresponding to the slot format indicator.

[0026] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, identifying the configuration may also include operations, features, units, or instructions for: identifying a second configuration that indicates that a control channel resource candidate corresponding to the uplink cancellation indication corresponds to a control channel resource candidate immediately following a control channel resource candidate configured for slot format indicator monitoring.

[0027] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: transmitting configuration signaling that configures the UE to monitor the slot format indicator with the same aggregation level in the same search space and the same control resource set as those used for monitoring the uplink cancellation indication.

[0028] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, identifying the configuration may also include operations, features, units, or instructions for: identifying a second configuration that indicates that a control channel resource candidate configured for slot format indicator monitoring may be configured for a first search space in a first control resource set with a first control channel element aggregation level, wherein the second configuration further indicates that a control channel resource candidate corresponding to the uplink cancellation indication may be configured for a second search space, a second control resource set, a second control channel element aggregation level, or a combination thereof that is different from the first search space, the first control resource set, and the first control channel element aggregation level.

[0029] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, identifying the configuration may also include operations, features, units, or instructions for: identifying a third configuration that indicates that a control channel resource candidate configured for slot format indicator monitoring and a control channel resource candidate corresponding to the uplink cancellation indication correspond to different blind detections.

[0030] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: sending configuration signaling to the UE to indicate the configuration.

[0031] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the control channel resource candidates corresponding to the uplink cancellation indication correspond to physical downlink control channel blind decoding candidates. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 FIG. shows an example of a wireless communication system supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure.

[0033] Figure 2 FIG. shows an example of a wireless communication system supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure.

[0034] Figure 3 FIG. shows an example of a process flow supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure.

[0035] Figure 4 and 5 FIG. shows a block diagram of a device supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure.

[0036] Figure 6 FIG. shows a block diagram of a communication manager supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure.

[0037] Figure 7 FIG. shows a diagram of a system including a device supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure.

[0038] Figure 8 and 9 FIG. shows a block diagram of a device supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure.

[0039] Figure 10 FIG. shows a block diagram of a communication manager supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure.

[0040] Figure 11 FIG. shows a diagram of a system including a device supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure.

[0041] Figures 12 to 16 FIG. shows a flowchart illustrating a method supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure. Detailed implementation manners

[0042] A wireless communication system (e.g., a next-generation system such as New Radio (NR) or a 5G system) may support signaling for indicating or instructing a user equipment (UE) to cancel some or all of the scheduled uplink transmissions. Such signaling may be referred to as uplink cancellation indication (ULCI) or uplink preemption indication (ULPI). For example, a base station may send a ULCI to a UE (e.g., an enhanced mobile broadband (eMBB) UE) to cancel a part of a scheduled uplink transmission that overlaps with another uplink transmission from another user (e.g., ultra-reliable low-latency communication (URLLC) or some other communication with higher priority or stricter latency and reliability constraints).

[0043] The UE may be configured to monitor a control channel (e.g., the physical downlink control channel (PDCCH)) for ULCI messages (e.g., on one or more ULCI monitoring occasions of the PDCCH). In some cases, there may be multiple resources (e.g., time and frequency locations) that may potentially carry ULCI, and the UE may be configured to monitor one or more of these resources. For example, the UE may be configured to monitor one or more PDCCH candidates from a search space (e.g., a common search space for multiple UEs) in a control resource set (CORESET) for a specific control channel element (CCE) aggregation level. In some cases, the UE may be configured to process downlink messages (e.g., control messages such as downlink control information (DCI) indicating ULCI) according to a first processing timeline. The UE may receive DCI from the base station, which includes several PDCCH blind detection candidates that the UE can decode according to the first processing timeline. In some cases, the UE may receive ULCI as one of the PDCCH blind detection candidates, and the ULCI indicates a cancellation that is to occur according to a faster processing timeline (e.g., relative to other uplink cancellations performed by the UE). However, in some examples, the UE may decode several other PDCCH blinds before decoding the PDCCH blind detection containing ULCI, and when decoding ULCI, the UE may not have enough time to process ULCI and cancel the transmission according to the faster processing timeline. Therefore, in order to receive and process ULCI according to a faster processing timeline, it may be beneficial for the UE to determine which control resource (e.g., which PDCCH blind detection) carries ULCI, so that the UE can prioritize the decoding of the PDCCH control resource containing ULCI. For example, in the same PDCCH monitoring occasion, the UE may prioritize the decoding of the PDCCH candidate corresponding to ULCI over the decoding of other PDCCH candidates. In some examples, the prioritization of the PDCCH candidate corresponding to ULCI may be performed according to a decoding prioritization rule.

[0044] Aspects of the present disclosure describe configurations and techniques for indicating to the UE which PDCCH candidate corresponds to ULCI. Thus, the UE is able to identify the ULCI PDCCH candidate before decoding it, which can provide the advantage of reduced latency and processing time in a wireless communication system. Additionally, prioritizing the decoding of the ULCI PDCCH candidate can improve reliability and reduce conflicts between communications in the network (e.g., conflicts between eMBB and URLLC communications). The configuration indicating which PDCCH ULCI corresponds to ULCI may be statically configured, semi-statically configured, dynamically configured, or any combination of these signaling techniques.

[0045] In a first example, if a UE is configured with a search space and a corresponding CORESET for monitoring PDCCH candidates for a ULCI using a CCE aggregation level, the PDCCH candidates corresponding to the ULCI can be set as specific PDCCH candidates for that particular CCE aggregation level, search space, and CORESET. For example, a first PDCCH candidate can correspond to a ULCI for a specific CCE aggregation level, search space, and CORESET. In another example, the last PDCCH candidate (or some other set position) can correspond to a ULCI for a specific CCE aggregation level, search space, and CORESET.

[0046] In a second example, if a UE is configured to monitor a slot format indicator (SFI) on the same search space using the same CCE aggregation level as the ULCI, the PDCCH candidates corresponding to the ULCI can be set relative to the PDCCH candidates corresponding to the SFI in the same search space and aggregation level as the ULCI. For example, if a UE is configured to monitor X number of SFI candidates, the PDCCH candidates corresponding to the ULCI can be set to X + 1 or some other position relative to the PDCCH candidates corresponding to the SFI.

[0047] In a third example, a UE can be configured such that it is not expected to be configured with SFI and ULCI monitoring using the same aggregation level, in the same search space, and the same CORESET. For example, a UE can be configured to expect that the PDCCH candidates for SFI and the PDCCH candidates for ULCI will be different in terms of the search space, CORESET, aggregation level, or some combination of these aspects.

[0048] In a fourth example, a UE can be configured such that it is not expected that the PDCCH candidates for ULCI and the PDCCH candidates for SFI correspond to the same blind detection. For example, the PDCCH candidates for ULCI and the PDCCH candidates for SFI can be configured not to meet one or more conditions for being considered the same blind detection.

[0049] Aspects of the present disclosure are first described in the context of a wireless communication system and a process flow diagram. Aspects of the present disclosure are further illustrated by means of a device diagram, a system diagram, and a flowchart related to the determination of uplink cancellation indication resources, and aspects of the present disclosure are described with reference to these diagrams.

[0050] Figure 1FIG. 0 shows an example of a wireless communication system 100 that supports uplink cancellation indication resource determination in accordance with aspects of the present 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 enhanced 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 communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, or communications with low-cost and low-complexity devices, or any combination thereof.

[0051] The base stations 105 may be spread throughout a geographic area to form the wireless communication system 100, and may be devices of different forms or having different capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base stations 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the base stations 105 and the UEs 115 may support the transmission of signals in accordance with one or more radio access technologies.

[0052] The UEs 115 may be spread throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary, or mobile, or both at different times. The UEs 115 may be devices of different forms or having different capabilities. In Figure 1 FIG. shows some example UEs 115. The UEs 115 described herein are capable of communicating with various types of devices, such as other UEs 115, base stations 105, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices), as Figure 1 shown.

[0053] The base stations 105 may communicate with the core network 130, or with each other, or both. For example, the base stations 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). The base stations 105 may communicate directly (e.g., directly between base stations 105) with each other, or indirectly (e.g., via the core network 130) with each other, or both, over the backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, the backhaul links 120 may be one or more wireless links or may include one or more wireless links.

[0054] One or more of the base stations 105 described herein may include or may be referred to by those skilled in the art as a 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 a gNB), home Node B, home evolved Node B, or some other suitable term.

[0055] The UE 115 may include or may be referred to as a mobile device, wireless device, remote device, handheld device, or user equipment, or some other suitable term, where the "device" may also be referred to as a unit, station, terminal, or client, among other examples. The 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, among other examples, the 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, among other examples, which may be implemented in various objects such as appliances, or vehicles, meters.

[0056] The UE 115 described herein is capable of communicating with various types of devices, such as other UE 115s that can sometimes act as repeaters, as well as base stations 105 and network devices, among other examples, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, as Figure 1 shown.

[0057] The UE 115 and the base station 105 may communicate wirelessly with each other via one or more communication links 125 on one or more carriers. The term "carrier" refers to a collection of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth part (BWP)) that operates in accordance with 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 for coordinating the operation of the carrier, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation or multi-carrier operation. According to a carrier aggregation configuration, the UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used with both frequency division duplex (FDD) component carriers and time division duplex (TDD) component carriers.

[0058] In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling for coordinating the operation for other carriers. A 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 placed according to a channel raster so as to be discovered by the UE 115. A carrier may operate in an independent mode, in which the UE 115 may perform initial acquisition and connection via the carrier, or a carrier may operate in a non-independent mode, in which a different carrier (e.g., of the same or different radio access technologies) is used to anchor the connection.

[0059] The communication link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105, or a downlink transmission from the base station 105 to the UE 115. A 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).

[0060] A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or the wireless communication system 100. For example, the carrier bandwidth may be one of several defined bandwidths for a carrier of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)). Devices of the wireless communication system 100 (e.g., the base station 105, the UE 115, or both) may have a hardware configuration that supports communication on a particular carrier bandwidth, or may be configurable to support communication on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or a UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate on a portion (e.g., a subband, a BWP) or all of the carrier bandwidth.

[0061] The signal waveform transmitted on a carrier can be composed of multiple subcarriers (e.g., using a multi-carrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system adopting the MCM technique, a resource element can consist of a symbol period (e.g., the duration of a modulated symbol) and a subcarrier, where the symbol period and the 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 received by the UE 115 and the higher the order of the modulation scheme, the higher the data rate for the UE 115 can be. Wireless communication resources can refer to a combination of radio frequency spectrum resources, time 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 for communication with the UE 115.

[0062] One or more numerology for a carrier can be supported, where the numerology can include a subcarrier spacing (Δf) and a cyclic prefix. The carrier can be divided into one or more BWPs with the same or different numerology. In some examples, the UE 115 can be configured with multiple BWPs. In some examples, a single BWP for a carrier is active at a given time, and the communication for the UE 115 can be restricted to one or more active BWPs.

[0063] The time intervals for the base station 105 or the UE 115 can be represented as multiples of a basic time unit, which can be, for example, a sampling period of T s = 1 / (Δf max ·N f ) seconds, where Δf max can represent the maximum supported subcarrier spacing, and N f can represent the maximum supported discrete Fourier transform (DFT) size). The time intervals of the communication resources can be organized according to 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).

[0064] Each frame may include a plurality of consecutively numbered sub - frames or time slots, and each sub - frame or time slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into sub - frames, and each sub - frame may be further divided into a plurality of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the sub - carrier spacing. Each time slot may include a plurality of symbol periods (e.g., depending on the length of the cyclic prefix added in front of each symbol period). In some wireless communication systems 100, a time slot may be further divided into a plurality of mini - time slots each containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., N f f

[0065] sub - frames, time slots, mini - time slots or symbols may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in the TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in a burst of shortened TTIs (sTTIs)).

[0066] Physical channels may be multiplexed on a carrier according to various techniques. For example, one or more of time - division multiplexing (TDM) techniques, frequency - division multiplexing (FDM) techniques, or hybrid TDM - FDM techniques may be used to multiplex physical control channels and physical data channels on a downlink carrier. A control region for a physical control channel (e.g., a control resource set (CORESET)) may be defined by a plurality of symbol periods and may extend over the system bandwidth of the carrier or a subset of the system bandwidth. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more of the UEs 115 may monitor or search a control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. The aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with the 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 a plurality of UEs 115 and a UE - specific search space set for sending control information to a specific UE 115. As used herein, a search space set may also be referred to as a search space, and the two terms may be used interchangeably.

[0067] 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 for communicating with the base station 105 (e.g., on a carrier), and may be associated with an identifier (e.g., physical cell identifier (PCID), virtual cell identifier (VCID), or other identifier) for differentiating adjacent cells. In some examples, a cell may also refer to a geographic coverage area 110 or a portion of the geographic coverage area 110 (e.g., a sector) on which the logical communication entity operates. Depending on various factors (such as the capabilities of the base station 105), the scope of such a cell may range from a relatively small area (e.g., a structure, a subset of a structure) to a relatively large area. For example, a cell may be or may include a building, a subset of a building, or an external space between or overlapping with the geographic coverage area 110, among other examples.

[0068] Macro cells typically cover a relatively large geographic area (e.g., with a radius of several kilometers) and may allow unrestricted access by UEs 115 having a service subscription with the network provider that supports the macro cell. Compared to macro cells, small cells may be associated with lower-power base stations 105, and small cells may operate in the same or different (e.g., licensed, unlicensed) frequency bands as macro cells. Small cells may provide unrestricted access to UEs 115 having a service subscription with the network provider, or may provide restricted access to UEs 115 having an association with the small cell (e.g., UEs 115 in a closed subscriber group (CSG), UEs 115 associated with users in a residence or office). The base station 105 may support one or more cells and may also support communication on one or more cells using one or more component carriers.

[0069] In some examples, a carrier may support multiple cells and may be configured with different cell types according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access for different types of devices.

[0070] In some examples, base station 105 may be movable and, thus, provide communication coverage for a mobile geographic coverage area 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. The wireless communication system 100 may include, for example, a heterogeneous network where different types of base stations 105 use the same or different radio access technologies to provide coverage for respective geographic coverage areas 110.

[0071] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, base stations 105 may have similar frame timings, and transmissions from different base stations 105 may be approximately aligned in time. For asynchronous operation, base stations 105 may have different frame timings, and in some examples, transmissions from different base stations 105 may not be aligned in time. The techniques described herein may be used for synchronous operation or asynchronous operation.

[0072] Some UEs 115 (such as MTC or IoT devices) may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technologies that allow devices to communicate with each other or with the base station 105 without human intervention. In some examples, M2M communication or MTC may include communication from devices integrated with sensors or meters for measuring or capturing information and passing that information to a central server or application, which may utilize the information or present the information to a person interacting with the application. Some UEs 115 may be designed to collect information or implement automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, medical monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security awareness, physical access control, and transaction-based business charging.

[0073] Some UEs 115 can be configured to operate in power-saving modes, e.g., half-duplex communication (e.g., a mode that supports one-way communication via transmission or reception rather than simultaneous transmission and reception). In some examples, half-duplex communication can be performed at a reduced peak rate. Other power-saving techniques for UEs 115 include entering a power-saving deep sleep mode when not participating in active communication, when operating on a limited bandwidth (e.g., according to narrowband communication), or a combination of these techniques. For example, some UEs 115 can be configured for operation using a narrowband protocol type associated with a defined portion or extent (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of the carrier, or external to the carrier.

[0074] The wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, the wireless communication system 100 can be configured to support URLLC or mission-critical communication. The UE 115 can be designed to support ultra-reliable, low-latency, or critical functions (e.g., mission-critical functions). Ultra-reliable communication can include private communication 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 prioritization of services, 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 can be used interchangeably herein.

[0075] In some examples, the UE 115 is also capable of communicating directly with other UEs 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication can be within the geographical coverage area 110 of the base station 105. Other UEs 115 in such a group can be outside the geographical coverage area 110 of the base station 105 or otherwise unable to receive transmissions from the base station 105. In some examples, multiple groups of UEs 115 communicating via D2D communication can utilize a one-to-many (1:M) system, where each UE 115 transmits to each other UE 115 in the group. In some examples, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving the base station 105.

[0076] In some systems, the D2D communication link 135 can be an example of a communication channel (e.g., a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, vehicles can communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these. Vehicles can notify information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information related to the V2X system. In some examples, vehicles in the V2X system can communicate with roadside infrastructure (e.g., 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 communicate with both.

[0077] The core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 can be an evolved packet core (EPC) or a 5G core (5GC), which can include at least one control plane entity for managing access and mobility (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) and at least one user plane entity for routing or interconnecting packets to an external network (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)). The control plane entity can manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UE 115 served by the base station 105 associated with the 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 be connected to the network operator IP services 150. The operator IP services 150 can include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or packet-switched streaming services.

[0078] Some network devices in the network device (e.g., base station 105) can include subcomponents such as an access network entity 140, which can be an example of an access node controller (ANC). Each access network entity 140 can communicate with the UE 115 through one or more other access network transmission entities 145 (which can be referred to as radio heads, intelligent radio heads, or transmit / receive points (TRPs)). Each access network transmission entity 145 can include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 can be distributed across various network devices (e.g., radio heads and ANCs) or combined into a single network device (e.g., base station 105).

[0079] The wireless communication system 100 can operate using one or more frequency bands (generally in the range of 300 megahertz (MHz) to 300 gigahertz (GHz)). Generally, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or the decimeter band because the wavelength range is from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, but the waves may be sufficient to penetrate structures to serve UEs 115 located indoors from a macro cell. Compared to transmissions using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz, transmissions of UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers).

[0080] The wireless communication system 100 can also operate in the super-high frequency (SHF) region using frequency bands 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 devices 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 devices. However, the propagation of EHF transmissions may suffer 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 specified use of frequency bands across these frequency regions can vary according to the country or regulatory body.

[0081] The wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 can employ licensed-assisted access (LAA), LTE-unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed frequency band such as the 5 GHz industrial, scientific, and medical (ISM) band. When operating in an unlicensed radio frequency spectrum band, devices (such as the base station 105 and the UE 115) can employ carrier sensing for collision detection and avoidance. In some examples, operation in an unlicensed frequency band can be based on a carrier aggregation configuration that combines component carriers operating in a licensed frequency band (e.g., LAA). Among other examples, operation in the unlicensed spectrum can include downlink transmissions, uplink transmissions, peer-to-peer (P2P) transmissions, or device-to-device (D2D) transmissions.

[0082] The base station 105 or the UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of the base station 105 or the 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 the base station 105 may be located at different geographical locations. The base station 105 may have an antenna array having a number of rows and columns of antenna ports that the base station 105 may use to support beamforming for communication with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals transmitted via the antenna ports.

[0083] The base station 105 or the UE 115 may use MIMO communication to exploit multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing. For example, a transmitting device may transmit multiple signals via different antennas or different combinations of antennas. Similarly, a receiving device may receive multiple signals via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0084] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., base station 105 or UE 115) to form or direct an antenna beam (e.g., transmit beam, receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals transmitted via the antenna elements of an antenna array such that some signals propagating in a particular orientation relative to the antenna array experience constructive interference while other signals experience destructive interference. Adjusting the signals transmitted via the antenna elements can include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to the signals carried via the antenna elements associated with that device. The adjustment associated with each of the antenna elements can be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or receiving device, or relative to some other orientation).

[0085] As part of the beamforming operation, base station 105 or UE 115 can use beam scanning techniques. For example, base station 105 can use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with UE 115. Base station 105 can 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 can transmit signals according to different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions can be used (e.g., by the transmitting device such as base station 105 or by the receiving device such as UE 115) to identify the beam direction for subsequent transmissions or receptions performed by base station 105.

[0086] Base station 105 can transmit some signals (e.g., data signals associated with that receiving device) in a single beam direction (e.g., the direction associated with a particular receiving device such as UE 115). In some examples, the beam direction associated with a transmission along a single beam direction can be determined based on signals transmitted in one or more beam directions. For example, UE 115 can receive one or more of the signals transmitted by base station 105 in different directions and can report to base station 105 an indication of the signal that UE 115 received with the highest signal quality or otherwise acceptable signal quality.

[0087] In some examples, multiple beam directions may be used to perform transmissions by a device (e.g., by base station 105 or UE 115), and the device may use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from base station 105 to UE 115). UE 115 may report feedback for indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. Base station 105 may transmit reference signals (e.g., cell-specific reference signal (CRS), channel state information reference signal (CSI-RS)) that may or may not be precoded. UE 115 may provide feedback for beam selection, which may 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., for identifying beam directions for subsequent transmissions or receptions by UE 115) or to transmit signals in a single direction (e.g., for transmitting data to a receiving device).

[0088] When receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from base station 105, a receiving device (e.g., UE 115) may attempt multiple receiving configurations (e.g., directional listening). For example, the receiving device may receive by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of an antenna array (e.g., different sets of directional listening weights), or by processing received signals according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of an antenna array (any of the above operations may be referred to as "listening" according to different receiving configurations or receiving directions), thereby attempting multiple receiving directions. In some examples, the receiving device may use a single receiving configuration to receive along a single beam direction (e.g., when receiving a data signal). The single receiving configuration may be aligned in a beam direction determined based on listening according to different receiving configuration directions (e.g., a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio (SNR), or otherwise acceptable signal quality based on listening according to multiple beam directions).

[0089] The wireless communication system 100 can be a packet-based network that operates 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 segmentation and reassembly for transmission over logical channels. The media access control (MAC) layer can perform priority handling and multiplexing of logical channels onto transport channels. The MAC layer can also use error detection techniques, error correction techniques, or both to support retransmission at the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer can provide establishment, configuration, and maintenance of an RRC connection between the UE 115 and the base station 105 or the core network 130, which supports radio bearers for user plane data. At the physical layer, transport channels can be mapped to physical channels.

[0090] The UE 115 and the base station 105 can support retransmission of data to increase the likelihood that the data is successfully received. Hybrid automatic repeat request (HARQ) feedback is a technique for increasing the likelihood that data is correctly received over the 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 in poor radio conditions (e.g., low signal-to-noise conditions). In some examples, the device can support same-slot HARQ feedback, where the device can provide HARQ feedback for data received in previous symbols in a particular slot in that slot. In some other cases, the device can provide HARQ feedback in a subsequent slot or according to some other time interval.

[0091] The wireless communication system 100 may support ULCI or ULPI indication from the base station 105 to the UE 115, and may support configurations and techniques for indicating to the UE 115 which PDCCH candidates correspond to the ULCI. In a first example, if the UE 115 is configured with a search space and a corresponding CORESET for monitoring PDCCH candidates for the ULCI using a CCE aggregation level, the PCCCH candidate corresponding to the ULCI may be assigned to a specific PDCCH candidate (e.g., the first candidate or the last candidate) for that specific CCE aggregation level, search space, and CORESET. In a second example, if the UE 115 is configured to monitor the SFI on the same search space with the same CCE aggregation level as the ULCI, the PDCCH candidate corresponding to the ULCI may be set relative to the PDCCH candidate corresponding to the SFI in the same search space and aggregation level as the ULCI (e.g., the PDCCH candidate may immediately follow the SFI PDCCH candidate). In a third example, the UE 115 may be configured such that it is not expected to be configured with SFI and ULCI monitoring in the same search space and the same CORESET and using the same aggregation level. That is, the SFI PDCCH candidate and the ULCI PDCCH candidate may be different in terms of the search space, CORESET, aggregation level, or some combination of these. In a fourth example, the UE 115 may be configured such that it is not expected that the PDCCH candidate for the ULCI and the PDCCH candidate for the SFI correspond to the same blind detection.

[0092] Figure 2 An example of a wireless communication system 200 that supports uplink cancellation indication resource determination in accordance with aspects of the present disclosure is shown. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100 and may include a UE 115-a and a base station 105-a that may communicate on a communication link 205. The wireless communication system 200 may support ULCI signaling and configurations that indicate to the UE 115-a or allow the UE 115-a to determine which control channel resources correspond to the ULCI.

[0093] In wireless communication system 200, UE 115-a may support different service deployments, such as URLLC services and eMBB services. For example, UE 115-a may support URLLC transmissions to reduce the end-to-end latency of data transmission and reception associated with base station 105-a. In some examples, UE 115-a may correspond to a URLLC UE that supports or is otherwise configured for the transmission of relatively small data packets, such as periodic transmissions. Additionally or alternatively, UE 115-a may support eMBB transmissions associated with high data rates across a wide coverage area. In some examples, eMBB communications may be associated with less stringent latency and reliability targets or thresholds compared to URLLC communications.

[0094] To support the conditions associated with URLLC and eMBB service deployments or other types of priority-based resource allocation, base station 105-a and UE 115-a may implement various techniques for dynamic resource allocation and uplink transmission cancellation or preemption. For example, base station 105-a may send a ULCI, which may also be referred to as an uplink preemption indication (ULPI). For example, base station 105-a may be configured to send a ULCI based on a determination to reallocate uplink resources (e.g., resources associated with the uplink allocated to UE 115-a), and UE 115-a may monitor such a ULCI during a time period such as time slot 210. In some examples, time slot 210 may have a search space (e.g., a search space for ULCI monitoring 220) or other resources configured for ULCI monitoring.

[0095] Cancellation indication signaling, such as a ULCI or ULPI, may allow base station 105-a to schedule resources with higher priority or more stringent latency requirements (e.g., URLLC transmissions) on resources that have already been allocated to UE 115-a (e.g., which may be an example of an eMBB UE). Base station 105-a may use a ULCI to indicate to UE 115-a to cancel part or all of its transmission (e.g., a part of the uplink transmission that overlaps with an emergency URLLC transmission from one or more other UEs). In some cases, the ULCI is sent before the affected eMBB physical uplink shared channel (PUSCH) transmission (e.g., a part of the uplink transmission cancelled due to the ULCI). UE 115-a (which may be an example of an eMBB UE) may cancel the overlapping part of its uplink transmission after receiving the ULCI, which may result in avoiding interference with URLLC communications.

[0096] Base station 105-a may signal the ULCI to the UE 115 according to various techniques. For example, the UE 115-a may be configured to monitor the ULCI according to various signaling of the base station 105-a, such as various types of downlink control signaling, physical channel signaling, RRC signaling, cell-specific signaling, and other signaling types. In some examples, the ULCI may be transmitted in a DCI (e.g., DCI format 2_4) on the PDCCH, and the PDCCH may support group-common ULCI or UE-specific ULCI. For example, the ULCI may be transmitted in one or more PDCCH candidates 225 within the search space for ULCI monitoring 220. In some aspects, the UE 115-a may be configured to frequently monitor a set of channels or resources for the ULCI sent by the base station 105-a. For example, the UE 115-a may be configured to: during a given time slot, monitor the channel for the ULCI more frequently than other PDCCH candidates, such as DCI or scheduling DCI, including uplink or downlink grants. In some cases, the UE 115-a may report to the base station 105-a the ability of the UE 115-a to cancel transmissions according to the received ULCI and the ability for PDCCH monitoring.

[0097] In some cases, the ULCI is sent from the base station 105-a in group-common DCI. The UE 115-a may monitor the group-common DCI in a common search space (e.g., the search space for ULCI monitoring 220). In some cases, due to monitoring complexity and / or capability timeline constraints, there may be restrictions imposed on the base station 105-a and / or the UE 115-a such that there is only one blind detection candidate (e.g., one PDCCH candidate 225) for the ULCI configured for each ULCI monitoring occasion, and in addition to the blind detection candidate containing the ULCI, the UE 115-a may also decode several other blind detection candidates.

[0098] In some wireless communication systems (e.g., NR systems), a UE can be configured according to one of two processing capability timelines. The first processing capability timeline can be referred to as Capability 1 (Cap 1), which can correspond to a relatively slow or conventional processing timeline and, in some examples, can correspond to eMBB communication. The second processing capability timeline can be referred to as Capability 2 (Cap 2), which can correspond to a relatively faster processing timeline (e.g., faster than Cap 1). In some examples, the Cap 2 timeline can be used for URLLC communication and other high-priority and / or low-latency communication types. In some cases, UE 115-a can be configured for the Cap 1 processing timeline, but UE 115-a may still have to decode the ULCI and cancel its uplink transmission according to the Cap 2 timeline. For example, UE 115-a may have to be able to cancel its uplink transmission fast enough to meet the URLLC latency requirements.

[0099] This can pose monitoring challenges to UE 115-a, especially compared to monitoring other DCI formats (e.g., DCI formats received and processed according to the Cap 1 timeline). For example, UE 115-a can decode several PDCCH blind detections of DCI candidates but may not be able to determine which PDCCH blind detection contains the ULCI. Therefore, UE 115-a may decode several other blind detections before decoding and processing the ULCI, and when UE 115-a decodes the ULCI, UE 115-a may not be able to cancel its transmission according to the Cap 2 timeline.

[0100] Based on these monitoring challenges, there may be a limit to the number of PDCCH blind detection candidates (e.g., PDCCH candidates 225) that can be configured for ULCI for each ULCI monitoring time slot (e.g., each search space for ULCI monitoring 220). In some cases, there may be one PDCCH blind detection candidate configured for ULCI for each ULCI monitoring occasion. However, since ULCI candidates can be configured in a common search space, there may be other sets of common DCI candidates configured in the same search space with the same aggregation level as the ULCI candidates. Thus, in some examples, it may be advantageous to signal (or otherwise inform or enable determination of) to UE 115-a which PDCCH candidate 225 corresponds to the ULCI before ULCI decoding. In such examples, UE 115-a is able to preferentially decode the PDCCH candidate 225 containing the ULCI before decoding other PDCCH candidates. Such information and associated signaling and configuration can facilitate UE 115-a to prioritize ULCI decoding, which can allow UE 115-a (which may be an eMBB UE operating according to the Cap 1 timeline) to meet the Cap 2 processing timeline. By prioritizing downlink ULPI or ULCI or limiting the number of blind detection candidates, the wireless communication system 200 can facilitate increased communication efficiency and can support different transmission processing timelines configured for different devices.

[0101] Aspects of the present disclosure describe techniques for identifying, indicating, or otherwise determining which PDCCH candidate 225 (e.g., which blind detection candidate) within a configured monitoring occasion or search space corresponds to the ULCI. Such techniques may be described in several examples, which may be implemented by UE 115-a alone or in any combination.

[0102] In a first example, if UE 115-a is configured with a search space s and a corresponding CORESET p in one or more serving cells for monitoring PDCCH candidates for ULCI (e.g., DCI format 2_4) using a CCE aggregation level L, then the PDCCH candidates for ULCI can be the first PDCCH candidate or the last PDCCH candidate (or some other set position) for the CCE aggregation level L for the search space s in the CORESET p. In this example, if the SFI is configured to be monitored in the same search space s within the same aggregation level L, then the same PDCCH candidate can correspond to the SFI or the ULCI. In such a case, the SFI and the ULCI can be distinguished by an identifier (e.g., scrambled by different radio network temporary identifiers (RNTIs)). In some examples, there can be a limit of 2 SFI candidates that can be configured in the search space. In such a case, the base station 105-a can use the first candidate to send the ULCI, and in the case where the base station 105-a wants to send both the SFI and the ULCI in the same monitoring occasion, it can use the second candidate to send the SFI.

[0103] In a second example, if UE 115-a is configured to monitor the SFI (e.g., corresponding to DCI format 2_0) on the same search space s using the same aggregation level L as the ULCI, then the PDCCH candidate corresponding to the ULCI can be the candidate immediately following the PDCCH candidate for the SFI (e.g., in the time domain, frequency domain, according to the SFI index, etc., right after the PDCCH candidate for the SFI), or some other position set relative to the SFI PDCCH candidate. For example, if UE 115-a is configured to monitor X number of SFI candidates, then the PDCCH candidate corresponding to the ULCI can be the "(X + 1)"-th candidate in the search space s with the aggregation level L, where the first X candidates correspond to the SFI.

[0104] In a third example, UE 115-a may not be expected (e.g., based on configuration, signaling from the base station 105-a, etc.) to be configured with SFI and ULCI monitoring in the same search space, the same CORESET, and using the same aggregation level. For example, UE 115-a can be configured to expect that the PDCCH candidates for the SFI and the PDCCH candidates for the ULCI will be different in the search space, CORESET, aggregation level, or some combination of these aspects. As an example, if the SFI PDCCH candidate and the ULCI PDCCH candidate are configured in the same search space and the same CORESET, then this configuration can indicate that the CCE aggregation levels for the two PDCCH candidates are different.

[0105] In a fourth example, UE 115-a may be configured such that it does not expect that the PDCCH candidates for ULCI and the PDCCH candidates for SFI correspond to the same blind detection. For example, the PDCCH candidates for ULCI and the PDCCH candidates for SFI may be configured not to meet one or more conditions that are determined to be the same blind detection. Two PDCCH candidates may be determined to correspond to the same blind detection if: the two PDCCH candidates are transmitted on the same CORESET; the two PDCCH candidates are transmitted on the same set of CCEs (which implies that the two PDCCH candidates use the same aggregation level); the two PDCCH candidates are transmitted using the same scrambling ID; and the DCI formats associated with the two PDCCH candidates have the same DCI size. Thus, according to the fourth example, for the ULCI PDCCH candidates and the SFI PDCCH candidates, at least one of these four conditions is not met.

[0106] Figure 3 An example of a process flow 300 that supports uplink cancellation indication resource determination in accordance with aspects of the present disclosure is shown. In some examples, process flow 300 may implement aspects of wireless communication system 100 or wireless communication system 200. For example, process flow 300 may support a configuration for indicating to a UE which PDCCH candidate corresponds to a ULCI. Alternative examples may be implemented, where some steps may be performed in a different order than described or may not be performed at all. In some cases, the steps may include additional features not mentioned below, or additional steps may be added.

[0107] At 305, base station 105-b may identify a configuration for determining a control channel resource candidate (e.g., a PDCCH blind decoding candidate) corresponding to an uplink cancellation indication (e.g., ULCI or ULPI) from among a plurality of control channel resource candidates configured for UE 115-b.

[0108] At 310, base station 105-b may transmit, and UE 115-b may receive, an indication of the configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication.

[0109] At 315, the UE 115-b can identify a configuration for determining a control channel resource candidate (e.g., PDCCH blind decoding candidate) corresponding to an uplink cancellation indication (e.g., ULCI or ULPI) from a set of control channel resource candidates configured for the UE 115-b. The UE 115-b can identify the configuration based on the configuration indicated by the base station 105-b at 310. Additionally or alternatively, the UE 115-b can identify the indication based on a static configuration or any other type of signaling or configuration technique.

[0110] In a first example, the configuration can include a first configuration that indicates that a control channel resource candidate corresponding to the ULCI corresponds to a first control channel resource candidate in the set of control channel resource candidates. In this example, the UE 115-b can also receive configuration signaling that configures the UE 115-b to monitor a search space in a CORESET with a CCE aggregation level, where the first control channel resource candidate in the set of control channel resource candidates corresponds to the first control channel resource candidate for the aggregation level for the search space in the CORESET. Additionally or alternatively, the UE 115-b can distinguish between a control channel resource candidate corresponding to the ULCI and a control channel resource candidate corresponding to the SFI based on a difference in RNTIs for the control channel resource candidate corresponding to the ULCI and the control channel resource candidate corresponding to the SFI.

[0111] In a second example, the configuration can include a second configuration that indicates that a control channel resource candidate corresponding to the ULCI corresponds to a control channel resource candidate immediately following a control channel resource candidate configured for SFI monitoring. In this example, the UE 115-b can receive configuration signaling that configures the UE 115-b to monitor the SFI on the same search space and with the same aggregation level as that used to monitor the ULCI.

[0112] In a third example, the configuration may include a second configuration that indicates that control channel resource candidates configured for SFI monitoring are configured for a first search space in a first CORESET having a first control channel element aggregation level, where the second configuration also indicates that control channel resource candidates corresponding to ULCI are configured for a second search space, a second CORESET, a second control channel element aggregation level, or a combination thereof that is different from the first search space, the first CORESET, and the first control channel element aggregation level. For example, UE 115-b may be configured to expect that PDCCH candidates for SFI and PDCCH candidates for ULCI will be different in terms of search space, CORESET, aggregation level, or some combination of these. That is, in this example, UE 115-b may not be expected to be configured with SFI and ULCI monitoring in the same search space and the same CORESET and using the same CCE aggregation level.

[0113] In a fourth example, UE 115-b may be configured such that it does not expect PDCCH candidates for ULCI and PDCCH candidates for SFI to correspond to the same blind detection.

[0114] At 320, UE 115-b may determine, based on a configuration (e.g., the configuration identified at 315), a control channel resource candidate corresponding to ULCI from among a plurality of control channel resource candidates.

[0115] At 325, base station 105-b may determine, based on a ULCI candidate configuration (e.g., the configuration identified at 305), a control channel resource candidate corresponding to ULCI from among a plurality of control channel resource candidates.

[0116] At 330, base station 105-b may send, and UE 115-b may receive ULCI (or ULPI). The ULCI may be sent in a PDCCH candidate (e.g., a PDCCH blind decoding candidate) indicated by the configurations identified at 305 and 315.

[0117] At 335, UE 115-b may monitor ULCI in the control channel resource candidates (e.g., PDCCH blind decoding candidates) determined at 320 and 325. After receiving the ULCI, UE 115-b may cancel an uplink transmission based on the ULCI. In some examples, UE 115-b may process the ULCI and cancel the uplink transmission according to a reduced latency objective.

[0118] Figure 4FIG. 400 is a block diagram of a device 405 that supports uplink cancellation indication resource determination in accordance with aspects of the present disclosure. The device 405 may be an example of aspects of a UE 115 as described herein. The device 405 may include a receiver 410, a communication manager 415, and a transmitter 420. The device 405 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0119] The receiver 410 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to uplink cancellation indication resource determination, etc.). The information may be passed to other components of the device 405. The receiver 410 may be an example of aspects of the transceiver 720 described in Figure 7 reference. The receiver 410 may utilize a single antenna or a set of antennas.

[0120] The communication manager 415 may perform operations including: identifying a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for the UE; determining, based on the configuration, a control channel resource candidate corresponding to the uplink cancellation indication from the set of control channel resource candidates; and monitoring for the uplink cancellation indication in the control channel resource candidate corresponding to the uplink cancellation indication. The communication manager 415 may be an example of aspects of the communication manager 710 described herein.

[0121] The communication manager 415 or its sub-components may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the communication manager 415 or its sub-components may be executed by a general-purpose processor, a DSP, an ASIC, a field-programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0122] The communication manager 415 or its sub-components may physically be located in various positions, including being distributed such that portions of the functionality are implemented by one or more physical components in different physical locations. In some examples, in accordance with aspects of the present disclosure, the communication manager 415 or its sub-components may be separate and distinct components. In some examples, in accordance with aspects of the present disclosure, the communication manager 415 or its sub-components may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0123] Transmitter 420 may send signals generated by other components of device 405. In some examples, transmitter 420 may be co-located with receiver 410 in a transceiver module. For example, transmitter 420 may be an example of aspects of transceiver 720 described with reference to Figure 7 Transmitter 420 may use a single antenna or an antenna array.

[0124] In some examples, communication manager 415 may be implemented as an integrated circuit or chipset for a mobile device modem, and receiver 410 and transmitter 420 may be implemented as analog components (e.g., amplifiers, filters, antennas, etc.) coupled to the mobile device modem to enable wireless transmission and reception.

[0125] Communication manager 415 as described herein may be implemented to achieve one or more potential advantages. Various implementations may achieve enhanced communication efficiency and reliability and reduced communication latency. At least one implementation may enable communication manager 415 to efficiently identify and process ULCI and cancel transmissions from eMBB devices according to a reduced processing time period. At least one implementation may enable communication manager 415 to reduce conflicts between transmitting devices in a wireless network.

[0126] Based on implementing techniques for identifying and processing ULCI as described herein, one or more processors of device 405 (e.g., a processor that controls or is incorporated with one or more of receiver 410, communication manager 415, and transmitter 420) may reduce the amount of time required to efficiently identify, decode, and process ULCI transmitted from a transmitting device. In some examples, the described techniques may reduce latency for devices that support ULCI and increase processing time.

[0127] Figure 5 Block diagram 500 of a device 505 supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure is shown. Device 505 may be an example of aspects of device 405 or UE 115 as described herein. Device 505 may include a receiver 510, a communication manager 515, and a transmitter 535. Device 505 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0128] Receiver 510 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to uplink cancellation indication resource determination, etc.). The information may be passed to other components of device 505. Receiver 510 may be a reference to Figure 7Examples of aspects of the described transceiver 720. The receiver 510 may utilize a single antenna or a set of antennas.

[0129] The communication manager 515 may be an example of aspects of the communication manager 415 as described herein. The communication manager 515 may include a ULCI configuration component 520, a resource candidate component 525, and a monitoring component 530. The communication manager 515 may be an example of aspects of the communication manager 710 as described herein.

[0130] The ULCI configuration component 520 may identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for the UE.

[0131] The resource candidate component 525 may determine, based on the configuration, a control channel resource candidate corresponding to an uplink cancellation indication from the set of control channel resource candidates.

[0132] The monitoring component 530 may monitor for an uplink cancellation indication in the control channel resource candidate corresponding to the uplink cancellation indication, based on the determination.

[0133] The transmitter 535 may send signals generated by other components of the device 505. In some examples, the transmitter 535 may be co-located with the receiver 510 in a transceiver module. For example, the transmitter 535 may be an example of aspects of the transceiver 720 as referenced Figure 7 Examples of aspects of the described transceiver 720. The transmitter 535 may use a single antenna or an antenna set.

[0134] Figure 6 Block diagram 800 of a communication manager 605 supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure is shown. The communication manager 605 may be an example of aspects of the communication manager 415, the communication manager 515, or the communication manager 710 as described herein. The communication manager 605 may include a ULCI configuration component 610, a resource candidate component 615, a monitoring component 620, a search space configuration component 625, an RNTI component 630, and an SFI configuration component 635. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0135] The ULCI configuration component 610 may identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for the UE.

[0136] In some examples, the ULCI configuration component 610 may identify a first configuration that indicates that a control channel resource candidate corresponding to an uplink cancellation indication corresponds to a first control channel resource candidate in a set of control channel resource candidates.

[0137] In some examples, the ULCI configuration component 610 may identify a second configuration that indicates that a control channel resource candidate corresponding to an uplink cancellation indication corresponds to a control channel resource candidate immediately following a control channel resource candidate configured for slot format indicator monitoring.

[0138] In some examples, the ULCI configuration component 610 may identify a second configuration that indicates that a control channel resource candidate configured for slot format indicator monitoring is configured for a first search space in a first control resource set having a first control channel element aggregation level, where the second configuration further indicates that a control channel resource candidate corresponding to an uplink cancellation indication is configured for a second search space, a second control resource set, a second control channel element aggregation level, or a combination thereof that is different from the first search space, the first control resource set, and the first control channel element aggregation level.

[0139] In some examples, the ULCI configuration component 610 may identify a third configuration that indicates that a control channel resource candidate configured for slot format indicator monitoring and a control channel resource candidate corresponding to an uplink cancellation indication correspond to different blind detections.

[0140] In some cases, a control channel resource candidate corresponding to an uplink cancellation indication corresponds to a physical downlink control channel blind decoding candidate.

[0141] The resource candidate component 615 may determine, based on the configuration, a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates.

[0142] The monitoring component 620 may monitor for an uplink cancellation indication in a control channel resource candidate corresponding to the uplink cancellation indication based on the determination. In some examples, the monitoring component 620 may decode the control channel resource candidate corresponding to the uplink cancellation indication before decoding other control channel resource candidates in the same control channel monitoring occasion as the control channel resource candidate corresponding to the uplink cancellation indication, according to decoding prioritization rules.

[0143] The search space configuration component 625 may receive configuration signaling that configures the UE to monitor a search space in a control resource set using a control channel element aggregation level, where a first control channel resource candidate in a set of control channel resource candidates corresponds to a first control channel resource candidate for the aggregation level for the search space in the control resource set.

[0144] The RNTI component 630 may distinguish between a control channel resource candidate corresponding to an uplink cancellation indication and a control channel resource candidate corresponding to a slot format indicator based on a difference in radio network temporary identifiers for the control channel resource candidate corresponding to the uplink cancellation indication and the control channel resource candidate corresponding to the slot format indicator.

[0145] The SFI configuration component 635 may receive configuration signaling that configures the UE to monitor a slot format indicator using the same aggregation level on the same search space and the same control resource set as used for monitoring the uplink cancellation indication.

[0146] Figure 7 FIG. shows a system 700 including a device 705 that supports uplink cancellation indication resource determination in accordance with aspects of the present disclosure. The device 705 may be an example of the device 405, the device 505, or the UE 115 described herein or include components of the device 405, the device 505, or the UE 115. The device 705 may include components for bi-directional voice and data communication, including components for sending and receiving communication, including a communication manager 710, an I / O controller 715, a transceiver 720, an antenna 725, a memory 730, and a processor 740. These components may communicate electronically via one or more buses (e.g., bus 745).

[0147] The communication manager 710 may perform the following operations: identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for the UE; determine, based on the configuration, a control channel resource candidate corresponding to the uplink cancellation indication from the set of control channel resource candidates; and monitor an uplink cancellation indication in the control channel resource candidate corresponding to the uplink cancellation indication based on the determination.

[0148] The I / O controller 715 may manage input and output signals for the device 705. The I / O controller 715 may also manage peripheral devices not integrated into the device 705. In some cases, the I / O controller 715 may represent a physical connection or port to an external peripheral device. In some cases, the I / O controller 715 may use, such as an operating system or other known operating systems. In other cases, the I / O controller 715 can represent, or interact with, a modem, a keyboard, a mouse, a touch screen, or similar devices. In some cases, the I / O controller 715 can be implemented as part of a processor. In some cases, a user can interact with the device 705 via the I / O controller 715 or via hardware components controlled by the I / O controller 715.

[0149] As described above, the transceiver 720 can communicate bidirectionally via one or more antennas, wired or wireless links. For example, the transceiver 720 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 720 can also include a modem that modulates packets and provides the modulated packets to the antenna for transmission, and demodulates packets received from the antenna.

[0150] In some cases, the wireless device can include a single antenna 725. However, in some cases, the device can have more than one antenna 725 capable of simultaneously transmitting or receiving multiple wireless transmissions.

[0151] The memory 730 can include RAM and ROM. The memory 730 can store computer-readable, computer-executable code 735 that includes instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, among other things, the memory 730 can contain a BIOS that can control basic hardware or software operations, such as interactions with peripheral components or devices.

[0152] The processor 740 can include intelligent hardware devices (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, discrete gate or transistor logic devices, discrete hardware components, or any combination thereof). In some cases, the processor 740 can be configured to operate a memory array using a memory controller. In other cases, the memory controller can be integrated into the processor 740. The processor 740 can be configured to execute computer-readable instructions stored in a memory (e.g., the memory 730) to cause the device 705 to perform various functions (e.g., functions or tasks supporting uplink cancellation indication resource determination).

[0153] The code 735 can include instructions for implementing aspects of the present disclosure, including instructions for supporting wireless communication. The code 735 can be stored in a non-transitory computer-readable medium such as system memory or other types of memory. In some cases, the code 735 may not be directly executable by the processor 740, but can cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0154] Figure 8 FIG. 800 is a block diagram of a device 805 that supports determination of uplink cancellation indication resources in accordance with aspects of the present disclosure. The device 805 may be an example of an aspect of the base station 105 as described herein. The device 805 may include a receiver 810, a communication manager 815, and a transmitter 820. The device 805 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0155] The receiver 810 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to uplink cancellation indication resource determination, etc.). The information may be passed to other components of the device 805. The receiver 810 may be an example of aspects of the transceiver 1120 described with reference to Figure 11 FIG. The receiver 810 may utilize a single antenna or a set of antennas.

[0156] The communication manager 815 may perform the following operations: identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for a UE; and transmit an uplink cancellation indication on the control channel resource candidate corresponding to the uplink cancellation indication based on the configuration. The communication manager 815 may be an example of aspects of the communication manager 1110 described herein with reference to Figure 11 FIG.

[0157] The communication manager 815 or its sub-components may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 815 or its sub-components may be performed by a general-purpose processor, a DSP, an application-specific integrated circuit (ASIC), an FPGA, or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0158] The communication manager 815 or its sub-components may physically be located in various positions, including distributed such that portions of the functionality are implemented by one or more physical components in different physical locations. In some examples, in accordance with aspects of the present disclosure, the communication manager 815 or its sub-components may be separate and distinct components. In some examples, in accordance with aspects of the present disclosure, the communication manager 815 or its sub-components may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in the present disclosure, or combinations thereof.

[0159] Transmitter 820 can send signals generated by other components of device 805. In some examples, transmitter 820 can be co-located with receiver 810 in a transceiver module. For example, transmitter 820 can be an example of aspects of transceiver 1120 described with reference to Figure 11 Transmitter 820 can utilize a single antenna or a set of antennas.

[0160] Various implementations of device 805 can achieve increased communication efficiency and reliability as well as reduced communication latency. At least one implementation can enable communication manager 815 to efficiently identify configurations for identifying ULCI to be sent to a receiving device. At least one implementation can enable communication manager 815 to cancel or reschedule transmissions (e.g., using ULCI).

[0161] Based on implementing techniques for identifying and processing ULCI as described herein, one or more processors of device 805 (e.g., processors that control or are incorporated with one or more of receiver 810, communication manager 815, and transmitter 820) can reduce the amount of time required to efficiently identify, decode, and process ULCI sent to a receiving device. In some examples, the described techniques can reduce latency and provide scheduling flexibility for device 805.

[0162] Figure 9 Block diagram 900 of device 905 supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure is shown. Device 905 can be an example of aspects of device 805 or base station 105 as described herein. Device 905 can include receiver 910, communication manager 915, and transmitter 930. Device 905 can also include a processor. Each of these components can communicate with each other (e.g., via one or more buses).

[0163] Receiver 910 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to uplink cancellation indication resource determination, etc.). The information can be passed to other components of device 905. Receiver 910 can be an example of aspects of transceiver 1120 described with reference to Figure 11 Receiver 910 can utilize a single antenna or a set of antennas.

[0164] Communication manager 915 can be an example of aspects of communication manager 815 as described herein. Communication manager 915 can include ULCI configuration component 920 and ULCI indication component 925. Communication manager 915 can be an example of aspects of communication manager 1110 described with reference to Figure 11 Communication manager 1110 described with reference to

[0165] The ULCI configuration component 920 may identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for a UE.

[0166] The ULCI indication component 925 may transmit an uplink cancellation indication on a control channel resource candidate corresponding to the uplink cancellation indication based on the configuration.

[0167] The transmitter 930 may transmit signals generated by other components of the device 905. In some examples, the transmitter 930 may be co-located with the receiver 910 in a transceiver module. For example, the transmitter 930 may be an example of aspects of the transceiver 1120 described with reference Figure 11 to. The transmitter 930 may use a single antenna or an antenna array.

[0168] Figure 10 FIG. 1000 is a block diagram of a communication manager 1005 supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure. The communication manager 1005 may be an example of aspects of the communication manager 815, communication manager 915, or communication manager 1110 described herein. The communication manager 1005 may include a ULCI configuration component 1010, a ULCI indication component 1015, a search space configuration component 1020, an RNTI component 1025, and an SFI configuration component 1030. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0169] The ULCI configuration component 1010 may identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for a UE.

[0170] In some examples, the ULCI configuration component 1010 may identify a first configuration that indicates that a control channel resource candidate corresponding to an uplink cancellation indication corresponds to a first control channel resource candidate in the set of control channel resource candidates.

[0171] In some examples, the ULCI configuration component 1010 may identify a second configuration that indicates that a control channel resource candidate corresponding to an uplink cancellation indication corresponds to a control channel resource candidate immediately following a control channel resource candidate configured for slot format indicator monitoring.

[0172] In some examples, the ULCI configuration component 1010 may identify a second configuration that indicates that a control channel resource candidate configured for slot format indicator monitoring is configured for a first search space in a first control resource set having a first control channel element aggregation level, where the second configuration further indicates that a control channel resource candidate corresponding to an uplink cancellation indication is configured for a second search space, a second control resource set, a second control channel element aggregation level, or a combination thereof that is different from the first search space, the first control resource set, and the first control channel element aggregation level.

[0173] In some examples, the ULCI configuration component 1010 may identify a third configuration that indicates that a control channel resource candidate configured for slot format indicator monitoring and a control channel resource candidate corresponding to an uplink cancellation indication correspond to different blind detections.

[0174] In some examples, the ULCI configuration component 1010 may send configuration signaling to the UE to indicate the configuration.

[0175] In some cases, a control channel resource candidate corresponding to an uplink cancellation indication corresponds to a physical downlink control channel blind decoding candidate.

[0176] The ULCI indication component 1015 may send an uplink cancellation indication on a control channel resource candidate corresponding to the uplink cancellation indication based on the configuration.

[0177] The search space configuration component 1020 may send configuration signaling that configures the UE to monitor a search space in a control resource set using a control channel element aggregation level, where a first control channel resource candidate in a set of control channel resource candidates corresponds to a first control channel resource candidate for the aggregation level for the search space in the control resource set.

[0178] The RNTI component 1025 may distinguish between a control channel resource candidate corresponding to an uplink cancellation indication and a control channel resource candidate corresponding to a slot format indicator based on a difference in radio network temporary identifiers for the control channel resource candidate corresponding to the uplink cancellation indication and the control channel resource candidate corresponding to the slot format indicator.

[0179] The SFI configuration component 1030 may send configuration signaling that configures the UE to monitor a slot format indicator using the same aggregation level on the same search space and the same control resource set as used for monitoring the uplink cancellation indication.

[0180] Figure 11FIG. shows a system 1100 including a device 1105 that supports uplink cancellation indication resource determination, in accordance with aspects of the present disclosure. The device 1105 may be an example of, or include, components of a device 805, a device 905, or a base station 105 as described herein. The device 1105 may include components for two-way voice and data communication, including components for sending and receiving communications, including a communication manager 1110, a network communication manager 1115, a transceiver 1120, an antenna 1125, a memory 1130, a processor 1140, and an inter-station communication manager 1145. These components may communicate electronically via one or more buses (e.g., bus 1150).

[0181] The communication manager 1110 may perform the following operations: identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for a UE; and based on the configuration, transmit an uplink cancellation indication on a control channel resource candidate corresponding to the uplink cancellation indication.

[0182] The network communication manager 1115 may manage communication with the core network (e.g., via one or more wired backhaul links). For example, the network communication manager 1115 may manage the transmission of data communication for client devices (such as one or more UEs 115).

[0183] The transceiver 1120 may communicate bidirectionally via one or more antennas, wired or wireless links as described herein. For example, the transceiver 1120 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1120 may also include a modem for modulating packets and providing the modulated packets to the antenna for transmission, and for demodulating packets received from the antenna.

[0184] In some cases, a wireless device may include a single antenna 1125. However, in some cases, the device may have more than one antenna 1125, which can simultaneously transmit or receive multiple wireless transmissions.

[0185] The memory 1130 may include RAM, ROM, or a combination thereof. The memory 1130 may store computer-readable code 1135, which includes instructions that, when executed by a processor (e.g., processor 1140), cause the device to perform various functions described herein. In some cases, in addition, the memory 1130 may also contain a BIOS, which may control basic hardware or software operations, such as interactions with peripheral components or devices.

[0186] Processor 1140 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 1140 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1140. Processor 1140 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1130) to cause device 1105 to perform various functions (e.g., functions or tasks supporting uplink cancellation indication resource determination).

[0187] The inter-station communication manager 1145 may manage communication with other base stations 105 and may include a controller or scheduler for collaboratively controlling communication with UE 115 with other base stations 105. For example, the inter-station communication manager 1145 may coordinate the scheduling of transmissions to UE 115 to implement various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-station communication manager 1145 may provide an X2 interface within the LTE / LTE-A wireless communication network technology to provide communication between base stations 105.

[0188] Code 1135 may include instructions for implementing aspects of the present disclosure, including instructions for supporting wireless communication. Code 1135 may be stored in a non-transitory computer-readable medium (e.g., system memory or other types of memory). In some cases, code 1135 may not be directly executable by processor 1140, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0189] Figure 12 A flowchart illustrating a method 1200 for supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure is shown. Operations of method 1200 may be implemented by UE 115 or its components as described herein. For example, operations of method 1200 may be performed by a communication manager as described with reference to Figures 4 to 7 described. In some examples, the UE may execute an instruction set to control functional units of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described herein.

[0190] At 1205, the UE may identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for the UE. The operation of 1205 may be performed according to the methods described herein. In some examples, aspects of the operation of 1205 may be performed by a communication manager as described with reference to Figures 4 to 7Execute using the described ULCI configuration component.

[0191] At 1210, the UE may determine, based on the configuration, a control channel resource candidate corresponding to the uplink cancellation indication from a set of control channel resource candidates. The operation of 1210 may be performed according to the methods described herein. In some examples, aspects of the operation of 1210 may be performed by a resource candidate component as described with reference to Figures 4 to 7 the described resource candidate component.

[0192] At 1215, the UE may monitor for the uplink cancellation indication in the control channel resource candidate corresponding to the uplink cancellation indication based on the determination. The operation of 1215 may be performed according to the methods described herein. In some examples, aspects of the operation of 1215 may be performed by a monitoring component as described with reference to Figures 4 to 7 the described monitoring component.

[0193] Figure 13 FIG. 1300 is a flow diagram illustrating a method 1300 for supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure. As described herein, the operations of method 1300 may be implemented by the UE 115 or its components. For example, the operations of method 1300 may be performed by a communication manager as described with reference to Figures 4 to 7 the described communication manager. In some examples, the UE may execute an instruction set to control functional units of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described herein.

[0194] At 1305, the UE may identify a configuration for determining a control channel resource candidate corresponding to the uplink cancellation indication from a set of control channel resource candidates configured for the UE. The operation of 1305 may be performed according to the methods described herein. In some examples, aspects of the operation of 1305 may be performed by a ULCI configuration component as described with reference to Figures 4 to 7 the described ULCI configuration component.

[0195] At 1310, the UE may identify a first configuration that indicates that the control channel resource candidate corresponding to the uplink cancellation indication corresponds to a first control channel resource candidate in the set of control channel resource candidates. The operation of 1310 may be performed according to the methods described herein. In some examples, aspects of the operation of 1310 may be performed by a ULCI configuration component as described with reference to Figures 4 to 7 the described ULCI configuration component.

[0196] At 1315, the UE may determine, based on the configuration, a control channel resource candidate corresponding to the uplink cancellation indication from the set of control channel resource candidates. The operation of 1315 may be performed according to the methods described herein. In some examples, aspects of the operation of 1315 may be performed by a ULCI configuration component as described with reference toFigures 4 to 7 Execute using the described resource candidate component.

[0197] At 1320, the UE can monitor for an uplink cancellation indication in a control channel resource candidate corresponding to the uplink cancellation indication based on the determination. The operation of 1320 can be performed according to the methods described herein. In some examples, aspects of the operation of 1320 can be performed by a monitoring component as described with reference to Figures 4 to 7 the described monitoring component.

[0198] Figure 14 FIG. 1400 is a flow diagram illustrating a method 1400 for supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure. As described herein, the operations of method 1400 can be implemented by the UE 115 or its components. For example, the operations of method 1400 can be performed by a communication manager as described with reference to Figures 4 to 7 the described communication manager. In some examples, the UE can execute an instruction set to control functional units of the UE to perform the functions described herein. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the functions described herein.

[0199] At 1405, the UE can identify a configuration for determining a control channel resource candidate corresponding to the uplink cancellation indication from a set of control channel resource candidates configured for the UE. The operation of 1405 can be performed according to the methods described herein. In some examples, aspects of the operation of 1405 can be performed by a ULCI configuration component as described with reference to Figures 4 to 7 the described ULCI configuration component.

[0200] At 1410, the UE can identify a second configuration that indicates that a control channel resource candidate corresponding to the uplink cancellation indication corresponds to a control channel resource candidate immediately following a control channel resource candidate configured for slot format indicator monitoring. The operation of 1410 can be performed according to the methods described herein. In some examples, aspects of the operation of 1410 can be performed by a ULCI configuration component as described with reference to Figures 4 to 7 the described ULCI configuration component.

[0201] At 1415, the UE can determine a control channel resource candidate corresponding to the uplink cancellation indication from the set of control channel resource candidates based on the configuration. The operation of 1415 can be performed according to the methods described herein. In some examples, aspects of the operation of 1415 can be performed by a resource candidate component as described with reference to Figures 4 to 7 the described resource candidate component.

[0202] At 1420, the UE may monitor for an uplink cancellation indication in control channel resource candidates corresponding to the uplink cancellation indication based on a determination. The operation at 1420 may be performed according to the methods described herein. In some examples, aspects of the operation at 1420 may be performed by a monitoring component as described with reference to Figures 4 to 7 the monitoring component described.

[0203] Figure 15 FIG. shows a flowchart of a method 1500 for supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure. As described herein, the operations of method 1500 may be implemented by UE 115 or its components. For example, the operations of method 1500 may be performed by a communication manager as described with reference to Figures 4 to 7 the communication manager described. In some examples, the UE may execute an instruction set to control functional units of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described herein.

[0204] At 1505, the UE may identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for the UE. The operation at 1505 may be performed according to the methods described herein. In some examples, aspects of the operation at 1505 may be performed by a ULCI configuration component as described with reference to Figures 4 to 7 the ULCI configuration component described.

[0205] At 1510, the UE may identify a second configuration that indicates that a control channel resource candidate configured for slot format indicator monitoring is configured for a first search space in a first control resource set having a first control channel element aggregation level, where the second configuration further indicates that a control channel resource candidate corresponding to an uplink cancellation indication is configured for a second search space, a second control resource set, a second control channel element aggregation level, or a combination thereof that is different from the first search space, the first control resource set, and the first control channel element aggregation level. The operation at 1510 may be performed according to the methods described herein. In some examples, aspects of the operation at 1510 may be performed by a ULCI configuration component as described with reference to Figures 4 to 7 the ULCI configuration component described.

[0206] At 1515, the UE may determine a control channel resource candidate corresponding to an uplink cancellation indication from the set of control channel resource candidates based on the configuration. The operation at 1515 may be performed according to the methods described herein. In some examples, aspects of the operation at 1515 may be performed by a resource candidate component as described with reference to Figures 4 to 7 the resource candidate component described.

[0207] At 1520, the UE may monitor for an uplink cancellation indication in control channel resource candidates corresponding to the uplink cancellation indication based on a determination. The operations at 1520 may be performed according to the methods described herein. In some examples, aspects of the operations at 1520 may be performed by a monitoring component as described with reference to Figures 4 to 7 described.

[0208] Figure 16 FIG. shows a flow diagram of a method 1600 supporting uplink cancellation indication resource determination in accordance with aspects of the present disclosure. The operations of method 1600 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of method 1600 may be performed by a communication manager as described with reference to Figures 8 to 11 described. In some examples, the base station may execute an instruction set to control the functional units of the base station to perform the functions described herein. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described herein.

[0209] At 1605, the base station may identify a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a set of control channel resource candidates configured for the UE. The operations at 1605 may be performed according to the methods described herein. In some examples, aspects of the operations at 1605 may be performed by a ULCI configuration component as described with reference to Figures 8 to 11 described.

[0210] At 1610, the base station may transmit an uplink cancellation indication on a control channel resource candidate corresponding to the uplink cancellation indication based on the configuration. The operations at 1610 may be performed according to the methods described herein. In some examples, aspects of the operations at 1610 may be performed by a ULCI indication component as described with reference to Figures 8 to 11 described.

[0211] It should be noted that the methods described herein describe possible implementations, and the operations and steps may be rearranged or otherwise modified, and other implementations are possible. Additionally, aspects from two or more of the methods may be combined.

[0212] The following provides an overview of aspects of the present disclosure:

[0213] Aspect 1: A method for wireless communication at a UE, comprising: identifying a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a plurality of control channel resource candidates configured for the UE; determining, at least in part based on the configuration, the control channel resource candidate corresponding to the uplink cancellation indication from the plurality of control channel resource candidates; and monitoring, at least in part based on the determination, the uplink cancellation indication in the control channel resource candidate corresponding to the uplink cancellation indication.

[0214] Aspect 2: The method according to aspect 1, wherein identifying the configuration further comprises: identifying a first configuration that indicates that the control channel resource candidate corresponding to the uplink cancellation indication corresponds to a first control channel resource candidate among the plurality of control channel resource candidates.

[0215] Aspect 3: The method according to aspect 2, further comprising: receiving configuration signaling that configures the UE to monitor a search space in a control resource set using a control channel element aggregation level, wherein the first control channel resource candidate among the plurality of control channel resource candidates corresponds to a first control channel resource candidate for the search space in the control resource set and for the control channel element aggregation level.

[0216] Aspect 4: The method according to any one of aspects 2 to 3, further comprising: differentiating between a control channel resource candidate corresponding to the uplink cancellation indication and a control channel resource candidate corresponding to a slot format indicator, at least in part based on a difference in radio network temporary identifiers for the control channel resource candidate corresponding to the uplink cancellation indication and the control channel resource candidate corresponding to the slot format indicator.

[0217] Aspect 5: The method according to any one of aspects 1 to 4, wherein identifying the configuration further comprises: identifying a second configuration that indicates that a control channel resource candidate configured for slot format indicator monitoring is configured for a first search space in a first control resource set having a first control channel element aggregation level, wherein the second configuration further indicates that the control channel resource candidate corresponding to the uplink cancellation indication is configured for a second search space, a second control resource set, a second control channel element aggregation level, or a combination thereof that is different from the first search space, the first control resource set, and the first control channel element aggregation level.

[0218] Aspect 6: The method according to any one of Aspects 1 to 5, wherein identifying the configuration further comprises: identifying a third configuration, the third configuration indicating that: a control channel resource candidate configured for slot format indicator monitoring and a control channel resource candidate corresponding to the uplink cancellation indication correspond to different blind detections.

[0219] Aspect 7: The method according to any one of Aspects 1 to 6, further comprising: according to a decoding prioritization rule, decoding the control channel resource candidate corresponding to the uplink cancellation indication before decoding other control channel resource candidates in a control channel monitoring occasion that is the same as the control channel resource candidate corresponding to the uplink cancellation indication.

[0220] Aspect 8: The method according to any one of Aspects 1 to 7, wherein the control channel resource candidate corresponding to the uplink cancellation indication corresponds to a physical downlink control channel blind decoding candidate.

[0221] Aspect 9: A method for wireless communication at a base station, comprising: identifying a configuration for determining a control channel resource candidate corresponding to an uplink cancellation indication from a plurality of control channel resource candidates configured for a UE; and transmitting the uplink cancellation indication on the control channel resource candidate corresponding to the uplink cancellation indication at least partially based on the configuration.

[0222] Aspect 10: The method according to Aspect 9, wherein identifying the configuration further comprises: identifying a first configuration, the first configuration indicating that: the control channel resource candidate corresponding to the uplink cancellation indication corresponds to a first control channel resource candidate among the plurality of control channel resource candidates.

[0223] Aspect 11: The method according to Aspect 10, further comprising: transmitting configuration signaling to configure the UE to monitor a search space in a control resource set using a control channel element aggregation level, wherein the first control channel resource candidate among the plurality of control channel resource candidates corresponds to a first control channel resource candidate for the search space in the control resource set and for the control channel element aggregation level.

[0224] Aspect 12: The method according to any one of Aspects 10 to 11, further comprising: distinguishing between the control channel resource candidate corresponding to the uplink cancellation indication and the control channel resource candidate corresponding to the slot format indicator at least partially based on a difference in radio network temporary identifiers of the control channel resource candidate corresponding to the uplink cancellation indication and the control channel resource candidate corresponding to the slot format indicator.

[0225] Aspect 13: The method according to any one of Aspects 9 to 12, wherein identifying the configuration further comprises: identifying a second configuration, the second configuration indicating that a control channel resource candidate configured for slot format indicator monitoring is configured for a first search space in a first control resource set having a first control channel element aggregation level, wherein the second configuration further indicates that a control channel resource candidate corresponding to the uplink cancellation indication is configured for a second search space, a second control resource set, a second control channel element aggregation level, or a combination thereof, different from the first search space, the first control resource set, and the first control channel element aggregation level.

[0226] Aspect 14: The method according to any one of Aspects 9 to 13, wherein identifying the configuration further comprises: identifying a third configuration, the third configuration indicating that a control channel resource candidate configured for slot format indicator monitoring and a control channel resource candidate corresponding to the uplink cancellation indication correspond to different blind detections.

[0227] Aspect 15: The method according to any one of Aspects 9 to 14, further comprising: sending configuration signaling for indicating the configuration to the UE.

[0228] Aspect 16: The method according to any one of Aspects 9 to 15, wherein the control channel resource candidate corresponding to the uplink cancellation indication corresponds to a physical downlink control channel blind decoding candidate.

[0229] Aspect 17: 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 8.

[0230] Aspect 18: 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 8.

[0231] Aspect 19: 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 8.

[0232] Aspect 20: 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 9 to 16.

[0233] Aspect 21: An apparatus for wireless communication at a base station, comprising at least one unit configured to perform the method according to any one of Aspects 9 to 16.

[0234] Aspect 22: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to perform the method according to any one of Aspects 9 to 16.

[0235] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described by way of example and the LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond the scope of LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to a variety of other wireless communication systems such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0236] The information and signals described herein can be represented using any of a variety of different technologies and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout the description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0237] The various illustrative blocks and components described in connection with the disclosure herein can be implemented or performed with a general-purpose processor, DSP, ASIC, CPU, FPGA, or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but in the alternative, 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 in conjunction with a DSP core, or any other such configuration).

[0238] 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 on or transmitted via a computer-readable medium as one or more instructions or code. Other examples and implementations are within the scope of the present 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 items. The features implementing the functions can also be physically located at various positions, including being distributed such that portions of the functions are implemented at different physical locations.

[0239] Computer-readable media includes both non-transitory computer storage media and communication media, where communication media includes any medium that facilitates transfer of a computer program from one place to another. The non-transitory storage media can be any available media that can be accessed by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), flash memory, compact disc read-only memory (CD-ROM) or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code units in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Additionally, any connection is properly termed a computer-readable medium. 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 the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. As used herein, disk and disc include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, where disks typically reproduce data magnetically, while discs reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media.

[0240] As used herein (including in the claims), the "or" as used in a list of items (e.g., a list of items that ends 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, for example, means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Additionally, as used herein, the phrase "based on" should not be construed as a reference to a closed set of conditions. For example, without departing from the scope of the present disclosure, an example step described as "based on condition A" can be based on both condition A and condition B. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "at least partially based on".

[0241] In the drawings, similar components or features may have the same reference numeral. Additionally, various components of the same type can be distinguished by following the reference numeral with a dash and a second numeral, which is 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, regardless of the second reference numeral or any other subsequent reference numerals.

[0242] The description set forth herein in connection with the drawings describes example configurations 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". For the purpose of providing an understanding of the described technology, the detailed description includes specific details. However, the technology can be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.

[0243] The description herein is provided to enable a person of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to a person of ordinary skill in the art, and the general principles defined herein can be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein but is accorded the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. An apparatus for wireless communication at a user equipment (UE), comprising: one or more memories; and one or more processors coupled to the one or more memories and configured to: receive a downlink control information message transmitted in a control channel resource candidate among a plurality of control channel resource candidates in a search space from a control resource set configured for the UE, wherein the downlink control information message is associated with a first radio network temporary identifier, and the first radio network temporary identifier indicates that the control channel resource candidate corresponds to an uplink cancellation indication for canceling one or more uplink communications; determine, based on the downlink control information message and the first radio network temporary identifier, a monitoring position of the control channel resource candidate corresponding to the uplink cancellation indication among the plurality of control channel resource candidates in the control resource set, wherein the monitoring position is a sequential first monitoring position for a control channel element aggregation level associated with cancellation indication monitoring; and monitor the uplink cancellation indication at the sequential first monitoring position among the plurality of control channel resource candidates, at least in part based on the determination.

2. The apparatus according to claim 1, wherein, The one or more processors are further configured to: receive configuration signaling that configures the UE to monitor the search space in the control resource set using the control channel element aggregation level associated with cancellation indication monitoring, wherein a sequential first control channel resource candidate among the plurality of control channel resource candidates corresponds to a sequential first control channel resource candidate for the search space in the control resource set for the control channel element aggregation level.

3. The apparatus according to claim 1, wherein, The one or more processors are further configured to: distinguish between the control channel resource candidate corresponding to the uplink cancellation indication and a second control channel resource candidate corresponding to a slot format indicator, at least in part based on a difference between the first radio network temporary identifier for the control channel resource candidate corresponding to the uplink cancellation indication and a second radio network temporary identifier for the second control channel resource candidate corresponding to the slot format indicator.

4. The apparatus according to claim 1, wherein, The search space includes a first search space, and the control resource set includes a first control resource set, and the one or more processors are further configured to: receive a second configuration that indicates that a control channel resource candidate configured for slot format indicator monitoring is configured for the first search space in the first control resource set having a first control channel element aggregation level, wherein the second configuration further indicates that a control channel resource candidate corresponding to the uplink cancellation indication is configured for a second search space, a second control resource set, a second control channel element aggregation level, or a combination thereof that is different from the first search space, the first control resource set, and the first control channel element aggregation level.

5. The apparatus according to claim 1, wherein, The one or more processors are further configured to: Receive a third configuration, the third configuration indicating that: control channel resource candidates configured for slot format indicator monitoring and control channel resource candidates corresponding to the uplink cancellation indication correspond to different blind detections.

6. The apparatus according to claim 1, wherein, The one or more processors are further configured to: Decode a control channel resource candidate corresponding to the uplink cancellation indication before decoding other control channel resource candidates in the same control channel monitoring occasion as the control channel resource candidate corresponding to the uplink cancellation indication, according to a decoding prioritization rule.

7. The apparatus according to claim 1, wherein, The control channel resource candidate corresponding to the uplink cancellation indication corresponds to a physical downlink control channel blind decoding candidate.

8. The apparatus according to claim 1, wherein, The one or more processors are further configured to: Transmit an indication of the UE's downlink processing time capability for processing one or more downlink communications at the UE.

9. An apparatus for wireless communication at a base station, comprising: One or more memories; And One or more processors, coupled to the one or more memories and configured to: Transmit a downlink control information message transmitted in a control channel resource candidate among a plurality of control channel resource candidates in a search space from a control resource set configured for a user equipment (UE), wherein the downlink control information message is associated with a first radio network temporary identifier, the first radio network temporary identifier indicating that the control channel resource candidate corresponds to an uplink cancellation indication for cancelling one or more uplink communications; and Based on the downlink control information message, transmit the uplink cancellation indication on the control channel resource candidate at a monitoring position among the plurality of control channel resource candidates in the control resource set, wherein the monitoring position is a sequential first monitoring position for a control channel element aggregation level associated with cancellation indication monitoring.

10. The apparatus according to claim 9, wherein, The one or more processors are further configured to: Transmit configuration signaling that configures the UE to monitor the search space in the control resource set using the control channel element aggregation level associated with cancellation indication monitoring, wherein a sequential first control channel resource candidate among the plurality of control channel resource candidates corresponds to a sequential first control channel resource candidate for the search space in the control resource set for the control channel element aggregation level.

11. The apparatus according to claim 9, wherein, The one or more processors are further configured to: Distinguish between the control channel resource candidate corresponding to the uplink cancellation indication and a second control channel resource candidate corresponding to the slot format indicator, at least in part based on a difference between the first radio network temporary identifier for the control channel resource candidate corresponding to the uplink cancellation indication and a second radio network temporary identifier for a second control channel resource candidate corresponding to the slot format indicator.

12. The apparatus according to claim 9, wherein, The search space includes a first search space, and the control resource set includes a first control resource set, and the one or more processors are further configured to: Transmit a second configuration, the second configuration indicating that a control channel resource candidate configured for slot format indicator monitoring is configured for the first search space in the first control resource set having a first control channel element aggregation level, wherein the second configuration further indicates that a control channel resource candidate corresponding to the uplink cancellation indication is configured for a second search space, a second control resource set, a second control channel element aggregation level, or a combination thereof that is different from the first search space, the first control resource set, and the first control channel element aggregation level.

13. The apparatus according to claim 9, wherein, The one or more processors are further configured to: Transmit a third configuration, the third configuration indicating that a control channel resource candidate configured for slot format indicator monitoring and a control channel resource candidate corresponding to the uplink cancellation indication correspond to different blind detections.

14. The apparatus according to claim 9, wherein, The one or more processors are further configured to: Receive an indication of the downlink processing time capability of the UE to process one or more downlink communications at the UE.

15. A method for wireless communication at a user equipment (UE), comprising: Receive a downlink control information message transmitted in a control channel resource candidate among a plurality of control channel resource candidates in a search space from a control resource set configured for the UE, wherein the downlink control information message is associated with a first radio network temporary identifier, the first radio network temporary identifier indicating that the control channel resource candidate corresponds to an uplink cancellation indication for canceling one or more uplink communications; Based on the downlink control information message and the first radio network temporary identifier, determine a monitoring position of the control channel resource candidate corresponding to the uplink cancellation indication among the plurality of control channel resource candidates in the control resource set, wherein the monitoring position is the sequential first monitoring position for a control channel element aggregation level associated with cancellation indication monitoring; and At least partially based on the determination, monitor the uplink cancellation indication at the sequential first monitoring position among the plurality of control channel resource candidates.

16. The method according to claim 15, further comprising: Receive configuration signaling that configures the UE to monitor the search space in the control resource set using the control channel element aggregation level associated with cancellation indication monitoring, wherein the sequential first control channel resource candidate among the plurality of control channel resource candidates corresponds to the sequential first control channel resource candidate for the search space in the control resource set for the control channel element aggregation level.

17. The method according to claim 15, further comprising: At least partially based on a difference between the first radio network temporary identifier for the control channel resource candidate corresponding to the uplink cancellation indication and a second radio network temporary identifier for a second control channel resource candidate corresponding to a slot format indicator, distinguish between the control channel resource candidate corresponding to the uplink cancellation indication and the second control channel resource candidate corresponding to the slot format indicator.

18. The method according to claim 15, wherein, The search space includes a first search space, and the control resource set includes a first control resource set, and receiving the downlink control information message includes: Receiving an indication of a configuration that indicates that a control channel resource candidate configured for slot format indicator monitoring is configured for the first search space in the first control resource set having a first control channel element aggregation level, wherein the configuration further indicates that a control channel resource candidate corresponding to the uplink cancellation indication is configured for a second search space, a second control resource set, a second control channel element aggregation level, or a combination thereof that is different from the first search space, the first control resource set, and the first control channel element aggregation level.

19. The method according to claim 15, wherein, Receiving the downlink control information message includes: Receiving an indication of a configuration that indicates that a control channel resource candidate configured for slot format indicator monitoring and a control channel resource candidate corresponding to the uplink cancellation indication correspond to different blind detections.

20. The method according to claim 15, further comprising: Decoding the control channel resource candidate corresponding to the uplink cancellation indication before decoding other control channel resource candidates in the same control channel monitoring occasion as the control channel resource candidate corresponding to the uplink cancellation indication, according to a decoding prioritization rule.

21. The method according to claim 15, wherein, The control channel resource candidate corresponding to the uplink cancellation indication corresponds to a physical downlink control channel blind decoding candidate.

22. The method according to claim 15, further comprising: Sending an indication of the downlink processing time capability of the UE to handle one or more downlink communications at the UE.

23. A method for wireless communication at a base station, comprising: Sending a downlink control information message transmitted in a control channel resource candidate among a plurality of control channel resource candidates in a search space from a control resource set configured for a user equipment (UE), wherein the downlink control information message is associated with a first radio network temporary identifier that indicates that the control channel resource candidate corresponds to an uplink cancellation indication for canceling one or more uplink communications; and Based on the downlink control information message, sending the uplink cancellation indication on the control channel resource candidate at a monitoring position among the plurality of control channel resource candidates in the control resource set, wherein the monitoring position is the sequential first monitoring position for a control channel element aggregation level associated with cancellation indication monitoring.

24. The method according to claim 23, further comprising: Sending configuration signaling that configures the UE to monitor the search space in the control resource set using the control channel element aggregation level associated with cancellation indication monitoring, wherein the sequential first control channel resource candidate among the plurality of control channel resource candidates corresponds to the sequential first control channel resource candidate for the search space in the control resource set for the control channel element aggregation level.

25. The method according to claim 24, further comprising: Distinguish between the control channel resource candidate corresponding to the uplink cancellation indication and the second control channel resource candidate corresponding to the time slot format indicator, at least in part based on a difference between the first radio network temporary identifier for the control channel resource candidate corresponding to the uplink cancellation indication and the second radio network temporary identifier for the second control channel resource candidate corresponding to the time slot format indicator.

26. The method according to claim 23, wherein, The search space includes a first search space, and the control resource set includes a first control resource set, and transmitting the downlink control information message includes: Transmitting an indication of a configuration that indicates that a control channel resource candidate configured for time slot format indicator monitoring is configured for the first search space in the first control resource set having a first control channel element aggregation level, wherein the configuration further indicates that a control channel resource candidate corresponding to the uplink cancellation indication is configured for a second search space, a second control resource set, a second control channel element aggregation level, or a combination thereof that is different from the first search space, the first control resource set, and the first control channel element aggregation level.

27. The method according to claim 23, wherein,Transmitting the downlink control information message includes: Transmitting an indication of a configuration that indicates that a control channel resource candidate configured for time slot format indicator monitoring and a control channel resource candidate corresponding to the uplink cancellation indication correspond to different blind detections.

28. The method according to claim 23, further comprising: Transmitting configuration signaling including the downlink control information message.

29. The method according to claim 23, wherein The control channel resource candidate corresponding to the uplink cancellation indication corresponds to a physical downlink control channel blind decoding candidate.

30. The method according to claim 23, further comprising: Receiving an indication of the UE's downlink processing time capability for processing one or more downlink communications at the UE.

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