Priority indication for downlink preemption and uplink cancellation

Abstract

A priority indication for downlink preemption and uplink cancellation is disclosed. Methods, systems, and devices for wireless communication are described. The methods, systems, and devices may enable a base station to determine an operating state of a user equipment (UE) corresponding to how the UE applies a preemption indication. The base station may indicate the operating state to the UE using parameters of the configuration message. The base station may transmit a grant indicating time-frequency resources scheduled for the UE. The UE may identify a priority of a channel associated with the scheduled resource. The base station may determine a number of scheduled resources to be preempted or cancelled, and may indicate the resources to the UE using a preempting indication. The UE may determine a remaining time-frequency resource based on the preemption indication, a priority of the channel, the operating state, or a combination thereof.

Description

[0001] This application is a divisional application of the Chinese invention patent application with the application date of February 12, 2021, application number 202180013420.1 (international application number PCT / US2021 / 018046), and invention name “Priority indication for downlink preemption and uplink cancellation”.

[0002] Cross-references

[0003] This patent application claims the benefit of U.S. Provisional Patent Application No. 62 / 977,037, entitled “PRIORITY INDICATION FOR DOWNLINK PREEMPTION AND UPLINK CANCELLATION,” filed by HOSSEINI et al. on February 14, 2020, and U.S. Patent Application No. 17 / 173,580, entitled “PRIORITY INDICATION FOR DOWNLINK PREEMPTION AND UPLINK CANCELLATION,” filed by HOSSEINI et al. on February 11, 2021; each of which is assigned to the assignee of this application. Technical Field

[0004] The following relates generally to wireless communications and, more particularly, to priority indication for downlink preemption and uplink cancellation. Background Art

[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasting, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems), and fifth generation (5G) systems that may be referred to as new radio (NR) systems. These systems may use various technologies, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each base station or network access node simultaneously supporting the communication of multiple communication devices, which may be referred to as user equipment (UE) in addition. Summary of the invention

[0006] The described technology relates to improved methods, systems, devices and apparatuses that support priority indications for downlink preemption and uplink cancellation. In general, the described technology enables a base station to determine an operating state of a user equipment (UE), which may correspond to how the UE applies a preemption indication (e.g., a downlink preemption indication (DLPI) or an uplink cancellation indication (ULCI)). The base station may indicate the operating state to the UE using parameters of a configuration message, within an information element of a configuration message, via control signaling, etc. In addition, the base station may transmit a grant indicating time-frequency resources scheduled for a channel of the UE, and the UE may identify the priority of a channel associated with the scheduled time-frequency resources. The base station may determine a number of scheduled resources to be preempted or canceled, and may use a preemption indication to indicate these resources to the UE. The UE may determine the remaining time-frequency resources based on the preemption indication, the priority of the channel, and the operating state, and may use these remaining time-frequency resources to communicate with the base station.

[0007] A method of wireless communication at a UE is described. The method may include: receiving a configuration message including a parameter from a base station indicating an operational state of the UE to apply a preemption indication based on a priority of a channel associated with the preemption indication; identifying the priority of the channel and time-frequency resources scheduled for the channel; receiving an instance of the preemption indication; determining a remaining portion of the identified time-frequency resources based on the received instance of the preemption indication and the priority of the identified channel; and communicating with the base station using the remaining portion of the time-frequency resources.

[0008] 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 are executable by the processor to cause the apparatus to: receive a configuration message including a parameter from a base station, the parameter indicating an operating state of the UE to apply the preemption indication based on the priority of a channel associated with the preemption indication; identify the priority of the channel and the time-frequency resources scheduled for the channel; receive an instance of the preemption indication; determine a remaining portion of the identified time-frequency resources based on the received instance of the preemption indication and the priority of the identified channel; and communicate with the base station using the remaining portion of the time-frequency resources.

[0009] Another apparatus for wireless communication at a UE is described. The apparatus may include means for: receiving a configuration message including a parameter from a base station indicating an operational state for the UE to apply a preemption indication based on a priority of a channel associated with the preemption indication; identifying the priority of the channel and time-frequency resources scheduled for the channel; receiving an instance of the preemption indication; determining a remaining portion of the identified time-frequency resources based on the received instance of the preemption indication and the priority of the identified channel; and communicating with the base station using the remaining portion of the time-frequency resources.

[0010] 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 for the following operations: receiving a configuration message including a parameter from a base station indicating an operational state of the UE to apply a preemption indication based on a priority of a channel associated with the preemption indication; identifying the priority of the channel and the time-frequency resources scheduled for the channel; receiving an instance of the preemption indication; determining a remaining portion of the identified time-frequency resources based on the received instance of the preemption indication and the priority of the identified channel; and communicating with the base station using the remaining portion of the time-frequency resources.

[0011] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the preemption indication includes a DLPI.

[0012] Some examples of the methods, apparatus (devices) and non-transitory computer-readable media described herein may further include operations, features, apparatus or instructions for the following actions: determining a set of time-frequency resources scheduled for the channel from the identified time-frequency resources, the set of time-frequency resources being non-overlapping with the remaining portion of the time-frequency resources; and suppressing monitoring of the set of time-frequency resources based on DLPI.

[0013] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for: determining a set of time-frequency resources scheduled for a second channel associated with a second priority level different from the priority level of the channel, the set of time-frequency resources being non-overlapping with the remaining portion of the time-frequency resources; and monitoring the set of time-frequency resources for the second channel based on the operating state and the DLPI associated with the priority level.

[0014] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the second channel may be associated with a different carrier than the channel.

[0015] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: receiving a message indicating a set of time-frequency resources for DLPI; and monitoring the set of time-frequency resources for DLPI, wherein receiving an instance of the preemption indication may be based on the monitoring.

[0016] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the preemption indication includes a ULCI.

[0017] Some examples of the methods, apparatus (devices) and non-transitory computer-readable media described herein may further include operations, features, apparatuses or instructions for the following actions: determining a set of time-frequency resources scheduled for the channel from the identified time-frequency resources, the set of time-frequency resources being non-overlapping with the remaining portion of the time-frequency resources; and suppressing use of the set of time-frequency resources to transmit uplink messages based on the ULCI.

[0018] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for: determining a set of time-frequency resources scheduled for a second channel associated with a second priority different from the priority of the channel, the set of time-frequency resources being non-overlapping with the remaining portion of the time-frequency resources; and transmitting the second channel using the set of time-frequency resources based on the operating state and the ULCI associated with the priority.

[0019] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the second channel may be associated with a different carrier than the channel.

[0020] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: receiving a message indicating a set of time-frequency resources for a ULCI; and monitoring the set of time-frequency resources for the ULCI, wherein an instance of receiving the preemption indication may be based on the monitoring.

[0021] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for configuring the UE to monitor both the DLPI and the ULCI.

[0022] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, configuring a UE to monitor both DLPI and ULCI may include operations, features, apparatuses, or instructions for the following actions: receiving a first message to configure the UE to monitor DLPI; and receiving a second message to configure the UE to monitor ULCI.

[0023] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: determining a channel set based on the operating state, the channel set including channels in which the UE can apply the preemption indication.

[0024] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the channel set includes at least two channels having different priorities.

[0025] A method of wireless communication at a base station is described. The method may include: determining an operational state of a UE to apply a preemption indication based on a priority of a channel associated with the preemption indication; transmitting a configuration message including a parameter indicating the operational state to the UE; transmitting a grant indicating time-frequency resources scheduled for the channel to the UE; transmitting an instance of the preemption indication; determining a remainder of the identified time-frequency resources based on the instance of the preemption indication and the priority of the channel; and communicating with the UE using the remainder of the time-frequency resources.

[0026] An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: determine an operational state of a UE applying a preemption indication based on a priority of a channel associated with the preemption indication; transmit a configuration message including a parameter indicating the operational state to the UE; transmit to the UE a grant indicating time-frequency resources scheduled for the channel; transmit an instance of the preemption indication; determine a remaining portion of the identified time-frequency resources based on the instance of the preemption indication and the priority of the channel; and communicate with the UE using the remaining portion of the time-frequency resources.

[0027] Another apparatus for wireless communication at a base station is described. The apparatus may include means for determining an operational state of a UE applying a preemption indication based on a priority of a channel associated with the preemption indication; transmitting a configuration message including a parameter indicating the operational state to the UE; transmitting to the UE a grant indicating time-frequency resources scheduled for the channel; transmitting an instance of the preemption indication; determining a remainder of the identified time-frequency resources based on the instance of the preemption indication and the priority of the channel; and communicating with the UE using the remainder of the time-frequency resources.

[0028] 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 for the following operations: determining an operational state of a UE applying a preemption indication based on a priority of a channel associated with the preemption indication; transmitting a configuration message including a parameter indicating the operational state to the UE; transmitting to the UE a grant indicating time-frequency resources scheduled for the channel; transmitting an instance of the preemption indication; determining a remaining portion of the identified time-frequency resources based on the instance of the preemption indication and the priority of the channel; and communicating with the UE using the remaining portion of the time-frequency resources.

[0029] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the preemption indication includes a DLPI.

[0030] Some examples of methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for: refraining from using the time-frequency resources to transmit the channel based on the DLPI.

[0031] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for: determining a set of time-frequency resources for a second channel associated with a second priority different from the priority of the channel, the set of time-frequency resources being non-overlapping with the remaining portion of the time-frequency resources; and transmitting the second channel using the set of time-frequency resources based on the operating state and the DLPI associated with the priority.

[0032] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the second channel may be associated with a different carrier than the channel.

[0033] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: transmitting a message indicating a set of time-frequency resources for DLPI; and transmitting the DLPI using the set of time-frequency resources.

[0034] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the preemption indication includes a ULCI.

[0035] Some examples of the methods, apparatus (devices) and non-transitory computer-readable media described herein may further include operations, features, apparatuses or instructions for the following actions: determining a set of time-frequency resources scheduled for the channel from the identified time-frequency resources, the set of time-frequency resources being non-overlapping with the remaining portion of the time-frequency resources; and suppressing monitoring of the set of time-frequency resources based on the ULCI to search for uplink messages from the UE.

[0036] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for: determining a set of time-frequency resources for a second channel associated with a second priority level different from the priority level of the channel, the set of time-frequency resources being non-overlapping with the remaining portion of the time-frequency resources; and monitoring the set of time-frequency resources for the second channel based on the operating state and the ULCI associated with the priority level.

[0037] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the second channel may be associated with a different carrier than the channel.

[0038] Some examples of methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for: transmitting a message indicating a set of time-frequency resources for ULCI; and transmitting the ULCI using the set of time-frequency resources.

[0039] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for configuring the UE to monitor both the DLPI and the ULCI.

[0040] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, configuring a UE to monitor both DLPI and ULCI may include operations, features, apparatuses, or instructions for the following actions: transmitting a first message to configure the UE to monitor DLPI; and transmitting a second message to configure the UE to monitor ULCI. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 and Figure 2

[0013] An example of a wireless communication system supporting priority indication for downlink preemption and uplink cancellation in accordance with aspects of the present disclosure is illustrated.

[0042] Figure 3 and Figure 4 An example of a process flow that supports priority indication for downlink preemption in accordance with aspects of the present disclosure is illustrated.

[0043] Figure 5 and Figure 6 A block diagram of a device supporting priority indication for downlink preemption and uplink cancellation in accordance with aspects of the present disclosure is shown.

[0044] Figure 7 A block diagram of a preemption manager supporting priority indication for downlink preemption and uplink cancellation is shown in accordance with aspects of the present disclosure.

[0045] Figure 8 A diagram of a system including devices supporting priority indication for downlink preemption and uplink cancellation is shown in accordance with aspects of the present disclosure.

[0046] Fig. 9 and Fig.10 A block diagram of a device supporting priority indication for downlink preemption and uplink cancellation in accordance with aspects of the present disclosure is shown.

[0047] Fig.11 A block diagram of a preemption manager supporting priority indication for downlink preemption and uplink cancellation is shown in accordance with aspects of the present disclosure.

[0048] Fig.12 A diagram of a system including devices supporting priority indication for downlink preemption and uplink cancellation is shown in accordance with aspects of the present disclosure.

[0049] Figures 13 to 18 A flow chart illustrating a method of supporting priority indication for downlink preemption and uplink cancellation in accordance with aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0050] In some wireless communication systems, a base station may use pre-allocated time-frequency resources to multiplex transmissions to a group of one or more UEs. In some cases, the first UE in the group may be configured to convey messages according to a given priority, or may be associated with a different message type or channel type than the second UE in the group. For example, the first UE may transmit or receive an ultra-reliable low latency communication (URLLC) message, while the second UE may transmit or receive an enhanced mobile broadband (eMBB) message. In some cases, the second UE may be scheduled to use time-frequency resources that may also be scheduled for higher priority traffic (e.g., at a later time). In such instances, the base station may transmit control information (e.g., downlink control information (DCI)) indicating time-frequency resources that may be preempted (e.g., in the case of a downlink) or canceled (e.g., in the case of an uplink) by the second UE.

[0051] The control information may be transmitted by the base station using a group common control channel (e.g., a group common physical downlink control channel (GC-PDCCH)). For example, the base station may use a bit sequence in a DCI message (which may be referred to as a preemption indication (e.g., a downlink preemption indication (DLPI) or an uplink cancellation indication (ULCI))) to indicate the time-frequency resources to be preempted or canceled. If the first UE, the second UE, or both have channels (e.g., a physical downlink shared channel (PDSCH), a physical uplink shared channel (PUSCH), or other signaling such as a sounding reference signal (SRS)) scheduled via resources that overlap with the resources indicated by the preemption indication, the UE may determine that the overlapping portion will be preempted or canceled.

[0052] In some cases, an uplink channel or a downlink channel may be associated with a given priority. For example, a channel may have a high priority (e.g., relative to one or more lower priority channels) or a low priority (e.g., relative to one or more higher priority channels). In some other examples, a channel may be associated with one of three or more different priorities (e.g., high, medium or low priority, etc.). The UE may receive a preemption indication and preempt or cancel the indicated resources regardless of the operating conditions at the UE (e.g., whether the UE is operating according to URLLC or eMBB criteria). That is, the UE may apply a preemption indication or a cancellation indication to the data, regardless of the priority or channel type. In some cases, canceling or preempting a channel without considering the priority may result in unnecessary cancellation or preemption, which may result in waiting time and inefficiency in the system (e.g., due to the granularity of the preemption indication).

[0053] Accordingly, the techniques described herein may enable a base station to configure the behavior of a UE (e.g., semi-statically or dynamically) to apply a preemptive indication or a cancellation indication to a channel based on a priority. For example, a base station may indicate an operating state to one or more UEs in a configuration message. The base station may indicate the operating state to the one or more UEs using parameters in radio resource control (RRC) signaling, system information block (SIB) transmission, or any other signaling. The operating state may correspond to or indicate how the UE will apply a preemptive indication or a cancellation indication to a set of time-frequency resources scheduled for a channel based on the priority of the channel.

[0054] For example, in a first operating state, the UE may apply a preemption indication or a cancellation indication to a scheduled time-frequency resource, regardless of the priority of the channel. In some cases, a UE operating in a first operating state may determine to preempt or cancel a time-frequency resource scheduled for a high priority channel (such as a URLLC channel) or a low priority channel (such as an eMBB channel) (for example, regardless of the priority of the channel). The priority of a channel associated with the first UE may be relative to other channels associated with transmissions for other UEs. In some other examples, the base station may indicate a second operating state. In a second operating state, the UE may apply a preemption indication or a cancellation indication to the time-frequency resources of a low priority channel (e.g., an eMBB channel) while maintaining communications scheduled in the time-frequency resources for a high priority channel (e.g., a URLLC channel).

[0055] In some cases, if the UE is configured to monitor more than one preemption indication (e.g., both DLPI and ULCI), the base station may separately configure parameters indicating the operating status for DLPI and ULCI messages. In some other cases, the base station may jointly configure parameters for DLPI and ULCI messages. Additionally or alternatively, the preemption indication may indicate resource preemption or cancellation on different carriers. In some examples, the base station may separately configure parameters indicating the operating status for different carriers. In some other examples, the base station may jointly configure parameters indicating the operating status for different carriers (e.g., by grouping the configurations of different carriers in a single message). In such cases, if the preemption indication indicates the resources of the first carrier, the preemption indication may be applied to the channel regardless of priority, and if the preemption indication indicates the resources of the second carrier, some channels (e.g., low priority channels or channels with a priority lower than a given priority threshold) may be preempted or cancelled.

[0056] Various aspects of the present disclosure are initially described in the context of a wireless communication system. Additional aspects of the present disclosure are described with respect to process flows. Various aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow charts related to priority indication for downlink preemption and uplink cancellation.

[0057] Figure 1An example of a wireless communication system 100 supporting priority indication for downlink preemption and uplink cancellation according to various aspects of the present disclosure is illustrated. 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 advanced 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, communications with low-cost and low-complexity devices, or any combination thereof.

[0058] The base stations 105 may be dispersed throughout a geographic area to form the wireless communication system 100, and may be different forms of devices or devices with 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 communication of signals according to one or more radio access technologies.

[0059] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile, or stationary and mobile at different times. The UEs 115 may be different forms of devices or devices with different capabilities. Figure 1 Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, base stations 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment), such as Figure 1 as shown in .

[0060] Each base station 105 may communicate with the core network 130, or communicate with each other, or both. For example, the base station 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 with each other directly (e.g., directly between the base stations 105), or indirectly (e.g., via the core network 130), or directly and indirectly on the backhaul link 120 (e.g., via X2, Xn or other interfaces). In some examples, the backhaul link 120 may be or include one or more wireless links.

[0061] One or more of the base stations 105 described herein may include or may be referred to by a person of ordinary skill in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a B node, an evolved B node (eNB), a next generation B node or a gigabit B node (any of which may be referred to as a gNB), a home B node, a home evolved B node, or other suitable terminology.

[0062] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable term, where a "device" may also be referred to as a unit, a station, a terminal, or a client, etc. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects such as electrical appliances or vehicles, meters, etc.

[0063] The UE 115 described herein may be able to communicate with various types of devices, such as other UEs 115, which may sometimes act as relays, as well as base stations 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, etc. Figure 1 as shown in .

[0064] 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" may refer to a set 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 portion (BWP)) that may operate according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operations, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation or multi-carrier operation. The UE 115 may be configured to have multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used in conjunction with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0065] In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling that coordinates the operation of 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 located according to a channel grid for discovery by UE 115. A carrier may operate in a standalone mode in which initial acquisition and connection may be made by UE 115 via the carrier, or a carrier may operate in a non-standalone mode in which a connection may be anchored using a different carrier (e.g., a different carrier of the same or different radio access technology).

[0066] 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 communications (e.g., in an FDD mode), or may be configured to carry both downlink and uplink communications (e.g., in a TDD mode).

[0067] A carrier may be associated with a particular bandwidth of a radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as a "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of several determined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)) of a carrier of a particular radio access technology. Devices (e.g., base stations 105, UEs 115, or both) of the wireless communication system 100 may have a hardware configuration that supports communications on a particular carrier bandwidth, or may be configurable to support communications on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communications via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate on a portion (e.g., subband, BWP) or all of a carrier bandwidth.

[0068] The signal waveform transmitted on the carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system using MCM technology, a resource element may include a code element period (e.g., the duration of a modulation code element) and a subcarrier, where the code element period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Thus, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate of UE 115 can be. Wireless communication resources may 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 may further improve the data rate or data integrity of communication with UE 115.

[0069] One or more parameter sets for a carrier may be supported, where the parameter set may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs with the same or different parameter designs. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communications for a UE 115 may be limited to the one or more active BWPs.

[0070] The time interval of the base station 105 or the UE 115 can be expressed as a multiple of a basic time unit, and the basic time unit can be, for example, a sampling period T s =1 / (Δf max ·N f ) seconds, where Δf max It can represent the maximum supported subcarrier spacing, and N f The maximum supported discrete Fourier transform (DFT) size may be indicated. Time intervals of communication resources may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0071] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into a number of time slots. Additionally or alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a number of code element periods (e.g., depending on the length of the cyclic prefix added before each code element period). In some wireless communication systems 100, a time slot may be further divided into a plurality of mini time slots containing one or more code elements. Excluding the cyclic prefix, each code element period may contain one or more (e.g., N f ) sampling period. The duration of a symbol period may depend on the subcarrier spacing or the operating band.

[0072] A subframe, slot, mini-slot, or symbol 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 a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

[0073] Physical channels may be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels may be multiplexed on a downlink carrier, for example, using one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by a number of symbol periods and may extend across a system bandwidth or a subset of a system bandwidth of a carrier. 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. An aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0074] Each base station 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hot spots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used to communicate with a base station 105 (e.g., on a carrier), and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other) used to distinguish adjacent cells. In some examples, a cell may also refer to a geographic coverage area 110 or a portion of a geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. The range of such a cell may range from a smaller area (e.g., a structure, a subset of a structure) to a larger area depending on various factors (such as the capabilities of the base station 105). For example, a cell may be or include a building, a subset of a building, or an external space between or overlapping a geographic coverage area 110, as well as other examples.

[0075] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access to UEs 115 that have service subscriptions with a network provider that supports the macro cell. A small cell may be associated with a lower power base station 105 (compared to a macro cell), and the small cell may operate in the same or different (e.g., licensed, unlicensed) frequency band as the macro cell. A small cell may provide unrestricted access to UEs 115 that have service subscriptions with a network provider, or may provide restricted access to UEs 115 associated with the small cell (e.g., UEs 115 in a closed subscriber group (CSG), UEs 115 associated with users in a home or office). A base station 105 may support one or more cells and may also support communications on one or more cells using one or more component carriers.

[0076] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), eMBB) that may provide access to different types of devices.

[0077] In some examples, base stations 105 may be mobile and thus provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In some 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 in which different types of base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.

[0078] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, the base stations 105 may have similar frame timing, and transmissions from different base stations 105 may be approximately aligned in time. For asynchronous operation, the base stations 105 may have different frame timing, and transmissions from different base stations 105 may not be aligned in time in some examples. The techniques described herein may be used for synchronous or asynchronous operation.

[0079] 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 technology that allows devices to communicate with each other or with a base station 105 without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application that utilizes the information or presents 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, health care monitoring, field survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging.

[0080] Some UEs 115 may be configured to employ a reduced power consumption mode of operation, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but not simultaneous transmission and reception). In some examples, half-duplex communication may be performed with a reduced peak rate. Other power saving techniques for UE 115 include entering a power saving deep sleep mode when not engaged in active communications, operating on a limited bandwidth (e.g., according to narrowband communications), or a combination of these techniques. For example, some UEs 115 may be configured to operate using a narrowband protocol type that is associated with a defined portion or range (e.g., a subcarrier or resource block (RB) set) within a carrier, within a guard band of a carrier, or outside a carrier.

[0081] The wireless communication system 100 may be configured to support ultra-reliable communication or low latency communication or various combinations thereof. For example, the wireless communication system 100 may be configured to support URLLC or mission-critical communication. UE 115 may be designed to support ultra-reliable, low latency or critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private communication or group communication, and may 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 may include prioritization of services, and mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low latency, critical mission and ultra-reliable low latency may be used interchangeably herein.

[0082] In some examples, UE 115 may also be able to communicate directly with other UE 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 may be within a geographic coverage area 110 of a base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105, or may not be able to receive transmissions from the base station 105 for other reasons. In some examples, each group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, wherein 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 some other cases, D2D communication is performed between each UE 115 without involving the base station 105.

[0083] In some systems, the D2D communication link 135 can be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, the vehicles can communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these communications. The vehicles can signal information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, vehicles in the V2X system can use vehicle-to-network (V2N) communications to communicate with roadside infrastructure (such as roadside units), or with the network, or both via one or more network nodes (e.g., base station 105).

[0084] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), and the EPC or 5GC may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) for managing access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnecting to an external network. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by a base station 105 associated with the core network 130. User IP packets may be delivered via a user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to a network operator IP service 150. Operator IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0085] Some network devices (such as base stations 105) may include subcomponents, such as access network entities 140, which may be examples of access node controllers (ANCs). Each access network entity 140 may communicate with each UE 115 through one or more other access network transport entities 145, which may be referred to as radio heads, smart radio heads, or transmission / reception points (TRPs). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or merged into a single network device (e.g., base station 105).

[0086] The wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). In general, the 300 MHz to 3 GHz region is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from about 1 decimeter to 1 meter long. UHF waves may be blocked or redirected by buildings and environmental features, but these waves may penetrate various structures sufficiently for macro cells to provide service to UEs 115 located indoors. Transmissions using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) than transmissions using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0087] The wireless communication system 100 may also operate in a super high frequency (SHF) zone using a frequency band from 3 GHz to 30 GHz (also known as a centimeter band) or in an extremely high frequency (EHF) zone of a spectrum (e.g., from 30 GHz to 300 GHz) (also known as a millimeter band). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between UE 115 and base station 105, and the EHF antenna of the corresponding device may be smaller and more closely spaced than the UHF antenna. In some examples, this may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may be subject to even greater atmospheric attenuation and a shorter range than SHF or UHF transmissions. The technology disclosed herein may be adopted across transmissions using one or more different frequency zones, and the use of frequency bands specified across these frequency zones may vary by country or regulatory agency.

[0088] The wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ licensed assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band (such as the 5 GHz industrial, scientific, and medical (ISM) band). When operating in an unlicensed radio frequency spectrum band, devices (such as base stations 105 and UEs 115) may employ carrier sensing for conflict detection and avoidance. In some examples, operations in an unlicensed band may be based on a carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in a licensed band. Operations in an unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.

[0089] The base station 105 or UE 115 may be equipped with multiple antennas, which can be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located in one or more antenna arrays or antenna panels that can support MIMO operations 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 antenna ports of several rows and columns that the base station 105 can use to support beamforming for communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals transmitted via the antenna ports.

[0090] The base station 105 or UE 115 can use MIMO communication to utilize multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such technology may be referred to as spatial multiplexing. For example, the transmitting device may transmit multiple signals via different antennas or different antenna combinations. Similarly, the receiving device may receive multiple signals via different antennas or different antenna combinations. 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 technology includes 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.

[0091] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a base station 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals communicated via antenna elements of an antenna array so that some signals propagating at a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals communicated via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each antenna element may 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 the receiving device, or relative to some other orientation).

[0092] In some examples, transmission by a device (e.g., by a base station 105 or a UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from the base station 105 to the UE 115). The UE 115 may report feedback 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. The base station 105 may transmit a reference signal that may be precoded or uncoded (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)). The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a 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 use similar techniques to transmit signals multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).

[0093] The wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, the communication of the bearer or packet data convergence protocol (PDCP) layer may be IP-based. The radio link control (RLC) layer may perform packet segmentation and reassembly to communicate on a logical channel. The media access control (MAC) layer may perform priority handling and multiplex logical channels into transport channels. The MAC layer may also use error detection techniques, error correction techniques, or both to support retransmission of the MAC layer to improve link efficiency. In the control plane, the RRC protocol layer may provide the establishment, configuration, and maintenance of an RRC connection that supports a radio bearer of user plane data between a UE 115 and a base station 105 or a core network 130. In the physical layer, transport channels may be mapped to physical channels.

[0094] UE 115 and base station 105 may 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 on communication link 125. HARQ may 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 may improve the throughput of the MAC layer in poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, a device may support simultaneous slot HARQ feedback, wherein the device may provide HARQ feedback in a specific time slot for data received in a previous symbol in the time slot. In some other cases, the device may provide HARQ feedback in a subsequent time slot or according to some other time interval.

[0095] The wireless communication system 100 may support configuration of the UE 115 by the base station 105. For example, the base station 105 may configure the UE 115 with an operational state associated with a preemption indication (e.g., DLPI) or a cancellation indication (e.g., ULCI, which may also be referred to as an uplink preemption indication (ULPI)). In a first operational state, the UE 115 may perform preemption or cancellation of communications scheduled on time-frequency resources on a channel, regardless of the priority of the channel. In a second operational state, the UE 115 may perform preemption or cancellation of communications scheduled on time-frequency resources on a channel based on the priority of the channel. For example, the UE 115 may preempt or cancel communications scheduled via resources indicated by a preemption indication for a low priority channel relative to another channel or relative to a priority threshold. The UE 115 may use the remaining portion of the time-frequency resources (e.g., time-frequency resources that have not been preempted or cancelled) to communicate with the base station 105. Thus, the UE 115 may avoid unnecessary preemption or cancellation, which may improve efficiency and reduce latency in the wireless communication system 100 .

[0096] Figure 2 An example of a wireless communication system 200 that supports priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure is illustrated. In some cases, the wireless communication system 200 may implement aspects of the wireless communication system 100 and may include UE 115-a, UE 115-b, base station 105-a, and communication link 125-a, which may be referenced Figure 1 An example of a UE 115, a base station 105, and a communication link 125 is described. As described herein, the base station 105-a can configure priority indications for downlink preemption and uplink cancellation for one or more of the UE 115-a and the UE 115-b to reduce signaling overhead associated with low-granularity preemption indications (e.g., DLPI or ULCI).

[0097] In some examples, base station 105-a may communicate with one or more UEs 115 via communication link 125. For example, base station 105-a may communicate with UEs 115-a and 115-b using a group common control channel (e.g., GC-PDCCH) via communication link 125-a. In some cases, UE 115 may support communication priorities, different channel types, or different communication types different from other UEs 115. For example, UE 115-a may support low latency communications, such as URLLC, while UE 115-b may support standard communications, such as eMBB, or other communications with higher latency than URLLC. The time-frequency resources allocated by base station 105-a may be used to multiplex transmissions to UE 115-a and UE 115-b. In some cases, UE 115-b may be scheduled to use a time-frequency resource set that may also be allocated for higher priority (e.g., more urgent) URLLC traffic of UE 115-a. Thus, base station 105-a may transmit control information (e.g., DCI) indicating time-frequency resources that may be preempted or cancelled by UE 115-b. For example, base station 105-a may include a bit sequence (e.g., a 14-bit sequence) within a DCI payload (e.g., in a PDCCH or GC-PDCCH) to indicate time-frequency resources that may be preempted or cancelled at UE 115-b in order to allow transmission of higher priority traffic of UE 115-a.

[0098] In some cases, base station 105-a may indicate time-frequency resources that will be preempted by UE 115-a, UE 115-b, or both. The indication may be a bit sequence in a DCI message (such as a DLPI). Base station 105-a may use GC-PDCCH to send the DLPI. If UE 115-a, UE 115-b, or both have received a grant to schedule a PDSCH that overlaps with the resources indicated by the DLPI, UE 115-a, UE 115-b, or both may determine to preempt the overlapping time-frequency resources (e.g., by suppressing monitoring of the preempted resources to find the PDSCH). In some cases, UE 115-a or UE 115-b may use this information to set the log-likelihood ratio (LLR) associated with the bits sent on the indicated time-frequency resources to zero, which may improve the decoding probability (e.g., the PDSCH decoding probability).

[0099] In some other cases, base station 105-a may indicate time-frequency resources that are to be canceled by UE 115-a, UE 115-b, or both. The indication may be a bit sequence in a DCI message (such as ULCI or ULPI). Base station 105-a may use a group-shared PDCCH to send the ULCI. If UE 115-a, UE 115-b, or both are scheduled to transmit uplink messages (e.g., PUSCH or SRS) using resources that overlap with the resources indicated by the ULCI, UE 115-a, UE 115-b, or both may determine to cancel the transmission of the uplink message on the overlapping portion.

[0100] In some cases, an uplink channel or a downlink channel may have an associated priority level. For example, an uplink channel (such as a dynamically granted PUSCH) may have a priority indicated in a DCI that schedules the PUSCH (e.g., by a one-bit indicator where "1" indicates a high priority and "0" or no value indicates a low priority). Additionally or alternatively, a physical uplink control channel (PUCCH) HARQ acknowledgment (ACK) priority may be implicitly indicated in a DCI that schedules the PUSCH or PDSCH. For example, a base station 105-a may configure several codebooks for a UE 115 (e.g., two HARQ-ACK codebooks for each UE 115). Each codebook may be configured with a priority level, which may also be the priority of the PUCCH for the HARQ-ACK of an uplink or downlink channel. The DCI that schedules the PUSCH or PDSCH may indicate to the UE 115 which codebook to use for HARQ-ACK feedback.

[0101] In some other examples, uplink channels (such as configured grant PUSCH or scheduling requests) may have a priority indicated via RRC signaling (e.g., an RRC-configured priority associated with each configured PUSCH transmission or with each scheduling request resource). Some transmissions may be designated or may default to low priority (e.g., periodic channel state information (CSI), semi-persistent CSI, periodic SRS, or semi-periodic SRS).

[0102] In some cases, the UE 115 may receive the DLPI or ULCI and preempt or cancel the indicated resources regardless of the operating state at the UE 115 (e.g., regardless of whether the UE 115 is scheduled for or supports a given priority, such as URLLC or eMBB criteria). That is, the UE 115 may apply the DLPI or ULCI to the data regardless of channel priority or regardless of which channels the base station 105 intends to preempt or cancel. In some cases, canceling or preempting channels without considering priority may result in unnecessary cancellations or preemptions, which may result in increased latency and inefficiencies in the system (e.g., due to the granularity of the preemption indication).

[0103] In some examples, the base station 105 may semi-statically or dynamically configure the behavior of the UE 115 to apply the DLPI or ULCI to the channel based on priority. For example, the base station 105-a may indicate the operating state to the UE 115-a in the configuration message 205-a via the communication link 125-b and indicate the operating state to the UE 115-b in the configuration message 205-b. Additionally or alternatively, the base station 105-a may send a single configuration message 205 indicating one or more operating states of the UE 115-a and the UE 115-b to the UE 115-a and the UE 115-b via the communication link 125-b. The base station 105-a may use parameters in RRC signaling, SIB transmission, or any other information signaling performed by the base station 105-a to indicate the operating state to the UE 115.

[0104] The operating state may correspond to how the UE 115 applies the DLPI or ULCI to the time-frequency resources scheduled for the channel based on the priority of the channel. For example, in a first operating state, the UE 115 may apply the DLPI or ULCI to the scheduled time-frequency resources regardless of the priority of the channel. In some cases, the base station 105-a may indicate the first operating state to the UE 115-a in a configuration message 205-a. Subsequently, the UE 115-a may receive a DLPI indicating the time-frequency resources to be preempted for the channel. In the first operating state, the UE 115-a may determine to preempt the time-frequency resources scheduled for a high priority channel 215-a (such as a URLLC channel) or a low priority channel 215-b (such as an eMBB channel) (e.g., regardless of the priority of the channel).

[0105] Additionally or alternatively, UE 115-a may receive a ULCI indicating time-frequency resources scheduled for a channel to be canceled. In a first operating state, UE 115-a may determine that time-frequency resources for a high priority channel 215-a or a low priority channel 215-b are to be canceled. In some cases, if a high priority channel for UE 115 has a relatively low priority when compared to other UEs 115 sharing time-frequency resources, the base station 105 may indicate the first operating state to the UE 115 (e.g., so that the frequency resources of the UE 115 may be preempted or canceled in favor of transmissions to or from other UEs 115). That is, the priority of a channel associated with a first UE may be relative to other channels associated with transmissions for other UEs 115.

[0106] In some cases, the base station 105 may indicate a second operating state to the UE 115. In the second operating state, the UE 115 may apply the DLPI or ULCI to the time-frequency resources of a low priority channel (e.g., a low priority channel 215-b, which may be an eMBB channel, or other channels with a priority level below a given threshold), while maintaining communications scheduled for a high priority channel (e.g., a high priority channel 215-a, which may be a URLLC channel, or other channels with a priority level above a given threshold) in the time-frequency resources. For example, the base station 105-a may indicate the second operating state to the UE 115-b in the configuration message 205-b. In the second operating state, the UE 115-b may determine to preempt the time-frequency resources scheduled for the low priority channel 215-b, and maintain the time-frequency resources scheduled for the high priority channel 215-a. Additionally or alternatively, UE 115-b may receive a ULCI indicating time-frequency resources to be canceled in high priority channel 215-a and low priority channel 215-b. In a second operating state, UE 115-b may determine that the time-frequency resources scheduled for low priority channel 215-b are to be canceled and the time-frequency resources scheduled for high priority channel 215-a are to be maintained.

[0107] In some cases, if the UE 115 is configured to monitor DLPI, ULCI, or both, the base station 105-a may separately configure parameters indicating the operating status for DLPI and ULCI messages. In some other cases, the base station 105-a may jointly configure parameters for DLPI and ULCI messages. Additionally or alternatively, DLPI and ULCI may indicate resource preemption or cancellation on different carriers. In some examples, the base station 105-a may separately configure parameters indicating the operating status for different carriers. In some other examples, the base station 105-a may jointly configure parameters indicating the operating status for different carriers (e.g., by grouping different carriers). In such cases, if the ULCI points to resources on the first carrier, the ULCI may be applied to the channel regardless of priority, and if the ULCI points to the second carrier, the low priority channel may be canceled. Similarly, if the DLPI points to resources on the first carrier, the DLPI may be applied to the channel regardless of priority, and if the DLPI points to the second carrier, the low priority channel may be preempted.

[0108] In some examples, the PUCCH priority may not be used to indicate the PDSCH priority. In such examples, the base station 105 may configure one or more UEs 115 to apply the DLPI according to the first operating state. However, if the PUCCH priority is used to indicate the PDSCH (e.g., the two priorities are related), the base station 105 may configure the one or more UEs 115 to apply the DLPI according to the second operating state.

[0109] The techniques described herein may allow a base station 105 to configure a UE 115 with an operating state associated with a preemption indication (e.g., a DLPI or ULCI). In a first operating state, the UE 115 may perform preemption or cancellation of time-frequency resources regardless of relative channel priority. In a second operating state, the UE 115 may perform preemption or cancellation of time-frequency resources based on relative channel priority (e.g., resources for relatively lower priority channels 215-b may be preempted or cancelled). The UE 115 may communicate with the base station 105 using the remaining portion of the time-frequency resources (e.g., time-frequency resources that have not yet been preempted or cancelled). Therefore, the UE 115 may avoid unnecessary preemption or cancellation, which may improve efficiency in the wireless communication system 200 and reduce latency in the wireless communication system 200.

[0110] Figure 3An example of a process flow 300 for supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure is illustrated. In some examples, the process flow 300 can implement aspects of the wireless communication system 100 and the wireless communication system 200. The process flow 300 includes a UE 115-c and a base station 105-b, which can be as described with reference to Figure 1 and 2 The corresponding examples of UE 115 and base station 105 described. The following alternative examples can be implemented, in which some of the processes are performed in a different order than described or not performed. In some cases, each process may include additional features not mentioned below, or further processes may be added.

[0111] At 305, the base station 105-b may determine an operational state of the UE 115-c. In some cases, the operational state may correspond to how the UE 115-c applies a preemption indication (eg, DLPI) based on a priority of a channel associated with the preemption indication.

[0112] The base station 105-b may transmit a configuration message to the UE 115-c at 310. In some cases, the configuration message may include parameters that indicate an operational state to the UE 115-c.

[0113] At 315, the base station 105-b may transmit a scheduling grant to the UE 115-c. The scheduling grant may indicate time-frequency resources scheduled for a channel (eg, a downlink channel such as a PDSCH). The channel may be associated with a given priority.

[0114] At 320, the UE 115-c may identify the time-frequency resources scheduled for the channel and a priority associated with the channel. The UE 115-c may identify the time-frequency resources scheduled for the channel based on the scheduled grant transmitted at 315 by the base station 105-b.

[0115] At 325, base station 105-b may determine a set of time-frequency resources scheduled for UE 115-c that may be preempted. For example, base station 105-b may determine resources in the set of time-frequency resources scheduled for UE 115-c or other resources that are non-overlapping with the set of time-frequency resources scheduled for UE 115-c. Base station 105-b may determine the preempted resources based on transmissions scheduled for UE 115-c or for other UEs 115.

[0116] At 330, the base station 105-b may transmit a DLPI to the UE 115-c, which may indicate the set of preempted resources or the number of preempted resources as determined at 325. For example, the base station 105-b may transmit the DLPI using a bit sequence (e.g., 14 bits) in a DCI message. The UE 115-c may then receive a group common control channel (e.g., GC-PDCCH) carrying the DCI. The DCI may be intended for a group of UEs 115 that includes the UE 115-c.

[0117] In some cases, base station 105-b may send a message indicating a set of time-frequency resources for DLPI and may transmit the DLPI to UE 115-c using the time-frequency resources. UE 115-c may monitor the set of time-frequency resources and receive the DLPI based on the monitoring.

[0118] At 335, the UE 115-c may determine the time-frequency resources to be preempted, which may be indicated by the DLPI. The preempted time-frequency resources may be non-overlapping with the remaining set of time-frequency resources (e.g., after the DLPI has been applied). Additionally or alternatively, the UE 115-c may determine a number of channels, including the channel identified from 315, to which the UE 115-c may apply the DLPI based on the operating state. In some cases, the number of channels may include two or more channels with different priorities (e.g., a relatively higher priority and a relatively lower priority).

[0119] Subsequently and optionally, at 340 and 345, the base station 105-b may refrain from transmitting using the preempted time-frequency resources, and the UE 115-c may refrain from monitoring the preempted time-frequency resources according to the first operating state. For example, if the operating state is the first operating state, the UE 115-c may apply the DLPI to the channel regardless of the priority of the channel.

[0120] Additionally or alternatively, and optionally at 350, the base station 105-b may determine a set of preempted time-frequency resources for a second channel associated with a second priority that are non-overlapping with the remaining time-frequency resources. The second priority may be different from the channel priorities at 340 and 345. The base station 105-b may use the preempted time-frequency resources for transmission. Optionally at 355, the UE 115-c may monitor the preempted time-frequency resources according to the second operating state. For example, if the operating state is the second operating state, the UE 115-c may apply the DLPI to the second channel based on the second priority (e.g., the UE 115-c may apply the DLPI to a relatively lower priority channel and suppress the application of the DLPI to a relatively higher priority channel). In some cases, the channels may be associated with different component carriers. For example, the channel may be associated with a first component carrier, and the second channel may be associated with a second component carrier that is different from the first component carrier.

[0121] At 360 and 365, the base station 105-b and the UE 115-c may determine the remaining time-frequency resources based on the DLPI and the priority of the channel (eg, after applying the DLPI according to the operating status).

[0122] At 370, the base station 105-b and the UE 115-c may communicate using the remaining portion of the time-frequency resources (eg, on a channel such as the PDSCH).

[0123] Figure 4 An example of a process flow 400 for supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure is illustrated. In some examples, the process flow 400 can implement aspects of the wireless communication system 100 and the wireless communication system 200. The process flow 400 includes a UE 115-d and a base station 105-c, which can be as described with reference to Figure 1 and 2 The corresponding examples of UE 115 and base station 105 described. The following alternative examples can be implemented, in which some of the processes are performed in a different order than described or not performed. In some cases, each process may include additional features not mentioned below, or further processes may be added.

[0124] At 405, the base station 105-c may determine an operational state of the UE 115-d. In some cases, the operational state may correspond to how the UE 115-d applies a preemption indication (e.g., ULCI) based on a priority of a channel associated with the preemption indication.

[0125] The base station 105-c may transmit a configuration message to the UE 115-d at 410. In some cases, the configuration message may include parameters that indicate an operational state to the UE 115-d.

[0126] At 415, the base station 105-c may transmit a scheduling grant to the UE 115-d. The scheduling grant may indicate time-frequency resources scheduled for a channel (eg, an uplink channel such as a PUSCH). The channel may be associated with a given priority.

[0127] At 420, the UE 115-d may identify the time-frequency resources scheduled for the channel and the priority associated with the channel. The UE 115-d may identify the time-frequency resources scheduled for the channel based on the scheduled grant transmitted at 315 by the base station 105-c.

[0128] At 425, the base station 105-c may determine a number of time-frequency resources scheduled for the UE 115-d that may be canceled. For example, the base station 105-c may determine resources in the set of time-frequency resources scheduled for the UE 115-d or other resources that are non-overlapping with the set of time-frequency resources scheduled for the UE 115-d. The base station 105-c may determine the preempted resources based on transmissions scheduled for the UE 115-d or for other UEs 115.

[0129] At 430, the base station 105-c may transmit a ULCI to the UE 115-d, which may indicate the set or number of cancelled resources as determined at 425. For example, the base station 105-c may transmit the ULCI using a bit sequence (e.g., 14 bits) in a DCI message. The UE 115-d may then receive a group common control channel (e.g., PDCCH) carrying the DCI. The DCI may be intended for a group of UEs 115 that includes the UE 115-d.

[0130] In some cases, the base station 105-c may send a message indicating a set of time-frequency resources for the ULCI and may subsequently transmit the ULCI to the UE 115-d using the time-frequency resources. The UE 115-d may monitor the set of time-frequency resources and receive the ULCI based on the monitoring.

[0131] At 435, UE 115-d may determine time-frequency resources to be cancelled, which may be indicated by the ULCI. The cancelled time-frequency resources may be non-overlapping with the remaining set of time-frequency resources (e.g., after the ULCI has been applied). Additionally or alternatively, UE 115-d may determine a number of channels, including the channel identified from 415, to which UE 115-d may apply the ULCI based on the operating state. In some cases, the number of channels may include two or more channels with different priorities (e.g., a relatively higher priority and a relatively lower priority).

[0132] Subsequently and optionally, at 440 and 445, the base station 105-c may refrain from monitoring the cancelled time-frequency resources, and the UE 115-d may refrain from transmitting using the cancelled time-frequency resources according to the first operating state. For example, if the operating state is the first operating state, the UE 115-d may apply the ULCI to the channel regardless of the priority of the channel.

[0133] Additionally or alternatively, and optionally at 450, the base station 105-c may determine a set of cancelled time-frequency resources that are non-overlapping with the remaining time-frequency resources for a second channel associated with a second priority. The second priority may be different from the channel priorities at 440 and 445. The UE 115-c may monitor the cancelled time-frequency resources according to the second operating state.

[0134] Optionally, at 455, UE 115-d may transmit an uplink message using the cancelled time-frequency resources based on the operating state and the second priority. For example, if the operating state is the second operating state, UE 115-d may apply the ULCI to the second channel based on the second priority (e.g., UE 115-d may apply the ULCI to a relatively lower priority channel and refrain from applying the ULCI to a relatively higher priority channel). In some cases, the channels may be associated with different component carriers. For example, the channel may be associated with a first component carrier, and the second channel may be associated with a second component carrier different from the first component carrier.

[0135] At 460 and 465, the base station 105-c and the UE 115-d may determine the remaining time-frequency resources based on the ULCI and the priority of the channel (e.g., after applying the ULCI according to the operating state). At 470, the base station 105-c and the UE 115-d may communicate using the remaining portion of the time-frequency resources (e.g., on a channel such as a PUSCH).

[0136] Figure 5 A block diagram 500 of a device 505 supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure is shown. The device 505 may be an example of aspects of a UE 115 as described herein. The device 505 may include a receiver 510, a preemption manager 515, and a transmitter 520. The device 505 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0137] The 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 priority indications for downlink preemption and uplink cancellation, etc.). The information may be passed to other components of the device 505. The receiver 510 may be a reference Figure 8 Examples of aspects of the described transceiver 820. The receiver 510 may utilize a single antenna or a collection of antennas.

[0138] The preemption manager 515 may receive a configuration message including parameters from a base station indicating an operational state of the UE to apply a preemption indication based on a priority of a channel associated with the preemption indication (e.g., DLPI or ULCI); identify the priority of the channel and the time-frequency resources scheduled for the channel; receive an instance of the preemption indication; determine a remaining portion of the identified time-frequency resources based on the received instance of the preemption indication and the priority of the identified channel; and communicate with the base station using the remaining portion of the time-frequency resources. The preemption manager 515 may be an example of aspects of the preemption manager 810 described herein.

[0139] The preemption manager 515 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the preemption manager 515 or its subcomponents may be performed by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (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.

[0140] The preemption manager 515 or its subcomponents may be physically located at various locations, including being distributed such that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the preemption manager 515 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the preemption manager 515 or its subcomponents may be combined with one or more other hardware components (including, but not limited to, input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof).

[0141] The transmitter 520 may transmit signals generated by other components of the device 505. In some examples, the transmitter 520 may be co-located with the receiver 510 in a transceiver module. For example, the transmitter 520 may be a reference Figure 8 Examples of aspects of the described transceiver 820. The transmitter 520 may utilize a single antenna or a collection of antennas.

[0142] Figure 6 A block diagram 600 of a device 605 supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure is shown. The device 605 may be an example of aspects of the device 505 or UE 115 as described herein. The device 605 may include a receiver 610, a preemption manager 615, and a transmitter 645. The device 605 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0143] The receiver 610 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 priority indications for downlink preemption and uplink cancellation, etc.). The information may be passed to other components of the device 605. The receiver 610 may be a reference Figure 8 Examples of aspects of the described transceiver 820. The receiver 610 may utilize a single antenna or a collection of antennas.

[0144] Preemption manager 615 may be an example of aspects of preemption manager 515 as described herein. Preemption manager 615 may include an operating state component 620, a channel manager 625, a preemption indication component 630, a resource component 635, and a communication component 640. Preemption manager 615 may be an example of aspects of preemption manager 810 as described herein.

[0145] The operating state component 620 may receive a configuration message including a parameter from a base station indicating an operating state for the UE to apply a preemption indication (eg, DLPI or ULCI) based on a priority of a channel associated with the preemption indication.

[0146] The channel manager 625 can identify the priority of the channel and the time-frequency resources scheduled for the channel. The preemption indication component 630 can receive an instance of the preemption indication. The resource component 635 can determine the remaining portion of the identified time-frequency resources based on the received instance of the preemption indication and the identified channel priority. The communication component 640 can use the remaining portion of the time-frequency resources to communicate with the base station.

[0147] The transmitter 645 can transmit signals generated by other components of the device 605. In some examples, the transmitter 645 can be co-located with the receiver 610 in a transceiver module. For example, the transmitter 645 can be a reference Figure 8 Examples of aspects of the described transceiver 820. The transmitter 645 may utilize a single antenna or a collection of antennas.

[0148] Figure 7A block diagram 700 of a preemption manager 705 supporting priority indication for downlink preemption and uplink cancellation in accordance with aspects of the present disclosure is shown. The preemption manager 705 can be an example of aspects of the preemption manager 515, the preemption manager 615, or the preemption manager 810 described herein. The preemption manager 705 can include an operating state component 710, a channel manager 715, a preemption indication component 720, a resource component 725, a communication component 730, a monitoring component 735, a message receiver 740, a transmission component 745, and a configuration component 750. Each of these modules can communicate with each other directly or indirectly (e.g., via one or more buses).

[0149] The operating state component 710 may receive a configuration message including a parameter from a base station indicating an operating state for the UE to apply a preemption indication (eg, DLPI or ULCI) based on a priority of a channel associated with the preemption indication.

[0150] The channel manager 715 may identify a priority for the channel and the time-frequency resources scheduled for the channel. In some examples, the channel manager 715 may determine a set of time-frequency resources scheduled for a second channel associated with a second priority different from the priority of the channel that is non-overlapping with the remainder of the time-frequency resources. In some cases, the second channel may be associated with a carrier different from the channel.

[0151] In some examples, the channel manager 715 may receive a message indicating a set of time-frequency resources for the ULCI. In some examples, the channel manager 715 may determine a channel set including a channel in which the UE may apply the preemption indication based on the operating state. In some cases, the channel set includes at least two channels with different priorities.

[0152] The preemption indication component 720 can receive an instance of the preemption indication. In some cases, the preemption indication includes a DLPI. In some cases, the preemption indication includes a ULCI.

[0153] The resource component 725 can determine the remaining portion of the identified time-frequency resources based on the received instance of the preemption indication and the identified channel priority. In some examples, the resource component 725 can determine a set of time-frequency resources scheduled for the channel in the identified time-frequency resources, which is non-overlapping with the remaining portion of the time-frequency resources.

[0154] Communication component 730 can communicate with the base station using the remainder of the time-frequency resources.Monitoring component 735 can refrain from monitoring the set of time-frequency resources based on the DLPI.

[0155] In some examples, monitoring component 735 can monitor a set of time-frequency resources for a second channel based on the operating state and the DLPI being associated with the priority. In some examples, monitoring component 735 can monitor a set of time-frequency resources for a DLPI, wherein an instance of receiving the preemption indication is based on the monitoring. In some examples, monitoring component 735 can monitor a set of time-frequency resources for a ULCI, wherein an instance of receiving the preemption indication is based on the monitoring.

[0156] The message receiver 740 may receive a message indicating a set of time-frequency resources for DLPI. In some examples, the message receiver 740 may receive a first message configuring the UE to monitor DLPI. In some examples, the message receiver 740 may receive a second message configuring the UE to monitor ULCI. The transmission component 745 may suppress the use of the set of time-frequency resources to transmit an uplink message based on the ULCI.

[0157] In some examples, transmitting component 745 can transmit the second channel using the set of time-frequency resources based on the operating state and the ULCI being associated with the priority.Configuring component 750 can configure the UE to monitor both the DLPI and the ULCI.

[0158] Figure 8 A diagram of a system 800 including a device 805 supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure is shown. The device 805 may be an example of a device 505, a device 605, or a UE 115 as described herein or include a component of the device 505, a device 605, or a UE 115. The device 805 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a preemption manager 810, an I / O controller 815, a transceiver 820, an antenna 825, a memory 830, and a processor 840. These components may be in electronic communication via one or more buses (e.g., a bus 845).

[0159] The preemption manager 810 can receive a configuration message including parameters from a base station, which indicates the operating state of the UE to apply the preemption indication based on the priority of the channel associated with the preemption indication (e.g., DLPI or ULCI); identify the priority of the channel and the time-frequency resources scheduled for the channel; receive an instance of the preemption indication; determine the remaining portion of the identified time-frequency resources based on the received instance of the preemption indication and the identified channel priority; and use the remaining portion of the time-frequency resources to communicate with the base station.

[0160] I / O controller 815 can manage input and output signals of device 805. I / O controller 815 can also manage peripheral devices that are not integrated into device 805. In some cases, I / O controller 815 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 815 can utilize an operating system, such as Or another known operating system. In some other cases, I / O controller 815 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 815 may be implemented as part of a processor. In some cases, a user may interact with device 805 via I / O controller 815 or via hardware components controlled by I / O controller 815.

[0161] The transceiver 820 may communicate bidirectionally via one or more antennas, wired or wireless links, as described herein. For example, the transceiver 820 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 820 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0162] In some cases, device 805 may include a single antenna 825, or may have more than one antenna 825, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0163] The memory 830 may include random access memory (RAM) and read-only memory (ROM). The memory 830 may store computer-readable, computer-executable code 835 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, the memory 830 may include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0164] The processor 840 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 840 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 840. The processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 830) so that the device 805 performs various functions (e.g., functions or tasks supporting priority indication for downlink preemption and uplink cancellation).

[0165] The code 835 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 835 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 835 may not be directly executed by the processor 840, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0166] Fig. 9 A block diagram 900 of a device 905 supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure is shown. The device 905 can be an example of aspects of a base station 105 as described herein. The device 905 may include a receiver 910, a preemption manager 915, and a transmitter 920. The device 905 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0167] The receiver 910 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 priority indications for downlink preemption and uplink cancellation, etc.). The information may be passed to other components of the device 905. The receiver 910 may be a reference Fig.12 Examples of various aspects of the described transceiver 1220. The receiver 910 may utilize a single antenna or a collection of antennas.

[0168] The preemption manager 915 may determine an operational state for a UE to apply a preemption indication (e.g., DLPI or ULCI) based on a priority of a channel associated with the preemption indication; transmit a configuration message including a parameter indicating the operational state to the UE; transmit a grant indicating time-frequency resources scheduled for the channel to the UE; transmit an instance of the preemption indication; determine a remaining portion of the identified time-frequency resources based on the instance of the preemption indication and the priority of the channel; and communicate with the UE using the remaining portion of the time-frequency resources. The preemption manager 915 may be an example of aspects of the preemption manager 1210 described herein.

[0169] The preemption manager 915 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the preemption manager 915 or its subcomponents may be performed by a general purpose processor, DSP, ASIC, FPGA or other programmable logic device designed to perform the functions described in the present disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0170] The actions performed by the preemption manager 915 as described herein may be implemented to achieve one or more potential advantages. One implementation may enable a base station to configure an operating state related to a preemption indication for a UE. Such a configuration may implement techniques for preempting or canceling time-frequency resources at a UE based on channel priority and operating state, which may result in higher data rates and more efficient communications (e.g., fewer communication errors), among other advantages.

[0171] Based on implementing the configuration as described herein, a processor of a UE or base station (e.g., a processor controlling a receiver 910, a preemption manager 915, a transmitter 920, or a combination thereof) can reduce the impact or likelihood of preemption or cancellation errors in a communication system while ensuring relatively efficient communication. For example, the configuration techniques described herein can utilize the relationship between the channel priority associated with the preemption indication and the operating state of the UE, which can achieve reduced signaling overhead and power savings, among other benefits.

[0172] The preemption manager 915 or its subcomponents may be physically located at various locations, including being distributed such that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the preemption manager 915 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the preemption manager 915 or its subcomponents may be combined with one or more other hardware components (including, but not limited to, I / O components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof).

[0173] The transmitter 920 may transmit signals generated by other components of the device 905. In some examples, the transmitter 920 may be co-located with the receiver 910 in a transceiver module. For example, the transmitter 920 may be a reference Fig.12 Examples of various aspects of the described transceiver 1220. The transmitter 920 may utilize a single antenna or a collection of antennas.

[0174] Fig.10 A block diagram 1000 of a device 1005 supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure is shown. The device 1005 may be an example of aspects of the device 905 or base station 105 as described herein. The device 1005 may include a receiver 1010, a preemption manager 1015, and a transmitter 1050. The device 1005 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0175] The receiver 1010 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 priority indications for downlink preemption and uplink cancellation, etc.). The information may be passed to other components of the device 1005. The receiver 1010 may be a reference Fig.12 Examples of various aspects of the described transceiver 1220. The receiver 1010 may utilize a single antenna or a collection of antennas.

[0176] The preemption manager 1015 may be an example of aspects of the preemption manager 915 as described herein. The preemption manager 1015 may include an operating state manager 1020, a configuration transmitter 1025, a grant component 1030, an indication transmitter 1035, a resource manager 1040, and a communication module 1045. The preemption manager 1015 may be an example of aspects of the preemption manager 1210 described herein.

[0177] The operating state manager 1020 may determine the operating state of the UE to apply the preemption indication based on the priority of the channel associated with the preemption indication (e.g., DLPI or ULCI). The configuration transmitter 1025 may transmit a configuration message including a parameter indicating the operating state to the UE. The grant component 1030 may transmit a grant indicating the time-frequency resources scheduled for the channel to the UE.

[0178] The indication transmitter 1035 may transmit an instance of the preempt indication. The resource manager 1040 may determine the remaining portion of the identified time-frequency resources based on the instance of the preempt indication and the priority of the channel. The communication module 1045 may use the remaining portion of the time-frequency resources to communicate with the UE.

[0179] Transmitter 1050 may transmit signals generated by other components of device 1005. In some examples, transmitter 1050 may be co-located with receiver 1010 in a transceiver module. Fig.12 Examples of various aspects of the described transceiver 1220. The transmitter 1050 may utilize a single antenna or a collection of antennas.

[0180] Fig.11A block diagram 1100 of a preemption manager 1105 supporting priority indication for downlink preemption and uplink cancellation in accordance with aspects of the present disclosure is shown. The preemption manager 1105 may be an example of aspects of the preemption manager 915, the preemption manager 1015, or the preemption manager 1210 described herein. The preemption manager 1105 may include an operating state manager 1110, a configuration transmitter 1115, a grant component 1120, an indication transmitter 1125, a resource manager 1130, a communication module 1135, a transmission manager 1140, a channel component 1145, a message transmitter 1150, a message monitor 1155, and a configuration manager 1160. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0181] The operating state manager 1110 may determine the operating state of the UE to apply the preemption indication based on the priority of the channel associated with the preemption indication (e.g., DLPI or ULCI). The configuration transmitter 1115 may transmit a configuration message including a parameter indicating the operating state to the UE. The grant component 1120 may transmit a grant indicating the time-frequency resources scheduled for the channel to the UE.

[0182] Indicator transmitter 1125 may transmit an instance of the preemption indication. In some cases, the preemption indication includes a DLPI. In some cases, the preemption indication includes a ULCI. In some examples, indicator transmitter 1125 may use the time-frequency resource set to transmit the DLPI. In some examples, indicator transmitter 1125 may use the time-frequency resource set to transmit the ULCI.

[0183] The resource manager 1130 may determine the remaining portion of the identified time-frequency resources based on the instance of the preemption indication and the priority of the channel. In some examples, the resource manager 1130 may determine a set of time-frequency resources in the identified time-frequency resources scheduled for the channel that are non-overlapping with the remaining portion of the time-frequency resources. The communication module 1135 may communicate with the UE using the remaining portion of the time-frequency resources.

[0184] The transmission manager 1140 may refrain from using the time-frequency resources to transmit the channel based on the DLPI.In some examples, the transmission manager 1140 may use the set of time-frequency resources to transmit the second channel based on the operational state and the DLPI being associated with the priority.

[0185] Channel component 1145 can determine a set of time-frequency resources for a second channel associated with a second priority different from the priority of the channel, the set of time-frequency resources being non-overlapping with the remainder of the time-frequency resources. In some cases, the second channel can be associated with a carrier different from the channel.

[0186] The message transmitter 1150 may transmit a message indicating a set of time-frequency resources for DLPI. In some examples, the message transmitter 1150 may transmit a message indicating a set of time-frequency resources for ULCI. In some examples, the message transmitter 1150 may transmit a first message configuring the UE to monitor DLPI. In some examples, the message transmitter 1150 may transmit a second message configuring the UE to monitor ULCI.

[0187] The message monitor 1155 may refrain from monitoring the set of time-frequency resources for uplink messages from the UE based on the ULCI. In some examples, the message monitor 1155 may monitor the set of time-frequency resources for the second channel based on the operational state and the ULCI associated with the priority. The configuration manager 1160 may configure the UE to monitor both the DLPI and the ULCI.

[0188] Fig.12 A diagram of a system 1200 including a device 1205 supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure is shown. The device 1205 may be an example of a device 905, a device 1005, or a base station 105 as described herein or include components of the above devices. The device 1205 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a preemption manager 1210, a network communication manager 1215, a transceiver 1220, an antenna 1225, a memory 1230, a processor 1240, and an inter-station communication manager 1245. These components may be in electronic communication via one or more buses (e.g., bus 1250).

[0189] The preemption manager 1210 may determine an operating state in which a UE applies a preemption indication (e.g., DLPI or ULCI) based on a priority of a channel associated with the preemption indication (e.g., DLPI or ULCI); transmit a configuration message to the UE including parameters indicating the operating state; transmit to the UE a grant indicating time-frequency resources scheduled for the channel; transmit an instance of the preemption indication; determine a remaining portion of the identified time-frequency resources based on the instance of the preemption indication and the priority of the channel; and communicate with the UE using the remaining portion of the time-frequency resources.

[0190] The network communications manager 1215 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1215 may manage the delivery of data communications for client devices, such as one or more UEs 115.

[0191] The transceiver 1220 may communicate bidirectionally via one or more antennas, wired or wireless links, as described herein. For example, the transceiver 1220 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1220 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0192] In some cases, a wireless device may include a single antenna 1225. However, in some cases, the device may have more than one antenna 1225, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0193] Memory 1230 may include RAM, ROM, or a combination thereof. Memory 1230 may store computer readable code 1235 including instructions that, when executed by a processor (e.g., processor 1240), cause the device to perform various functions described herein. In some cases, memory 1230 may include, among other things, a basic I / O system (BIOS) that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0194] Processor 1240 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1240 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1240. Processor 1240 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1230) to cause device 1205 to perform various functions (e.g., functions or tasks supporting priority indication for downlink preemption and uplink cancellation).

[0195] The inter-site communication manager 1245 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UE 115 in cooperation with other base stations 105. For example, the inter-site communication manager 1245 may coordinate scheduling of transmissions to UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, the inter-site communication manager 1245 may provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0196] The code 1235 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1235 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 1235 may not be directly executed by the processor 1240, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0197] Fig.13 A method 1300 is shown to illustrate supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure. The operations of the method 1300 may be implemented by a UE 115 or components thereof as described herein. For example, the operations of the method 1300 may be implemented by a UE 115 or components thereof as described herein. Figures 5 to 8 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described herein.

[0198] At 1305, the UE may receive a configuration message including a parameter from a base station indicating an operational state of the UE to apply the preemption indication (e.g., DLPI or ULCI) based at least in part on a priority of a channel associated with the preemption indication. The operations of 1305 may be performed according to the methods described herein. In some examples, aspects of the operations of 1305 may be performed as described in reference to Figures 5 to 8 The described operating state components are performed.

[0199] At 1310, the UE may identify the priority of the channel and the time-frequency resources scheduled for the channel. The operations of 1310 may be performed according to the methods described herein. In some examples, aspects of the operations of 1310 may be as described with reference to Figures 5 to 8 The channel manager described is executed.

[0200] At 1315, the UE may receive an instance of a preemption indication. The operations of 1315 may be performed according to the methods described herein. In some examples, aspects of the operations of 1315 may be performed as described with reference to Figures 5 to 8 The described preemptive instructions component is executed.

[0201] At 1320, the UE may determine the remaining portion of the identified time-frequency resources based at least in part on the received instances of the preemption indication and the priority of the identified channel. The operations of 1320 may be performed according to the methods described herein. In some examples, aspects of the operations of 1320 may be as described with reference to Figures 5 to 8 The resource components described are executed.

[0202] At 1325, the UE may communicate with the base station using the remaining portion of these time-frequency resources. The operations of 1325 may be performed according to the methods described herein. In some examples, aspects of the operations of 1325 may be performed as described with reference to Figures 5 to 8 The communication components described are performed.

[0203] Fig.14 A method 1400 is shown to illustrate supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure. The operations of the method 1400 may be implemented by a UE 115 or components thereof as described herein. For example, the operations of the method 1400 may be implemented by a UE 115 or components thereof as described herein. Figures 5 to 8 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described herein.

[0204] At 1405, the UE may receive a configuration message including a parameter from a base station indicating an operational state of the UE to apply the preemption indication (e.g., DLPI or ULCI) based at least in part on a priority of a channel associated with the preemption indication. The operations of 1405 may be performed according to the methods described herein. In some examples, aspects of the operations of 1405 may be performed as described in reference to Figures 5 to 8 The described operating state components are performed.

[0205] At 1410, the UE may identify the priority of the channel and the time-frequency resources scheduled for the channel. The operations of 1410 may be performed according to the methods described herein. In some examples, aspects of the operations of 1410 may be as described with reference to Figures 5 to 8 The channel manager described is executed.

[0206] At 1415, the UE may receive an instance of the preemption indication. The operations of 1415 may be performed according to the methods described herein. In some examples, aspects of the operations of 1415 may be performed as described with reference to Figures 5 to 8 The described preemptive instructions component is executed.

[0207] At 1420, the UE may determine that the preemption indication includes a DLPI. The operations of 1420 may be performed according to the methods described herein. In some examples, aspects of the operations of 1420 may be performed as described with reference to Figures 5 to 8 The described preemptive instructions component is executed.

[0208] At 1425, the UE may determine the remaining portion of the identified time-frequency resources based at least in part on the received instances of the preemption indication and the priority of the identified channel. The operations of 1425 may be performed according to the methods described herein. In some examples, aspects of the operations of 1425 may be as described with reference to Figures 5 to 8 The resource components described are executed.

[0209] At 1430, the UE may determine a set of time-frequency resources in the identified time-frequency resources scheduled for the channel that are non-overlapping with the remaining portion of the time-frequency resources. The operations of 1430 may be performed according to the methods described herein. In some examples, aspects of the operations of 1430 may be as described with reference to Figures 5 to 8 The resource components described are executed.

[0210] At 1435, the UE may refrain from monitoring the set of time-frequency resources based at least in part on the DLPI. The operations of 1435 may be performed according to the methods described herein. In some examples, aspects of the operations of 1435 may be performed as described with reference to Figures 5 to 8 The monitoring components described are performed.

[0211] At 1440, the UE may communicate with the base station using the remaining portion of the time-frequency resources. The operations of 1440 may be performed according to the methods described herein. In some examples, aspects of the operations of 1440 may be performed as described with reference to Figures 5 to 8 The communication components described are performed.

[0212] Fig.15 A method 1500 is shown to illustrate supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure. The operations of the method 1500 may be implemented by a UE 115 or components thereof as described herein. For example, the operations of the method 1500 may be implemented by a UE 115 or components thereof as described herein. Figures 5 to 8 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described herein.

[0213] At 1505, the UE may receive a configuration message including a parameter from a base station indicating an operational state of the UE to apply the preemption indication (e.g., DLPI or ULCI) based at least in part on a priority of a channel associated with the preemption indication. The operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be performed as described in reference to Figures 5 to 8 The described operating state components are performed.

[0214] At 1510, the UE may identify the priority of the channel and the time-frequency resources scheduled for the channel. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be as described with reference to Figures 5 to 8 The channel manager described is executed.

[0215] At 1515, the UE may receive an instance of the preemption indication. The operations of 1515 may be performed according to the methods described herein. In some examples, aspects of the operations of 1515 may be performed as described with reference to Figures 5 to 8 The described preemptive instructions component is executed.

[0216] At 1520, the UE may determine that the preemptive indication includes a ULCI. The operations of 1520 may be performed according to the methods described herein. In some examples, aspects of the operations of 1520 may be performed as described with reference to Figures 5 to 8 The described preemptive instructions component is executed.

[0217] At 1525, the UE may determine the remaining portion of the identified time-frequency resources based at least in part on the received instances of the preemption indication and the priority of the identified channel. The operations of 1525 may be performed according to the methods described herein. In some examples, aspects of the operations of 1525 may be as described with reference to Figures 5 to 8 The resource components described are executed.

[0218] At 1530, the UE may determine a set of time-frequency resources in the identified time-frequency resources scheduled for the channel that are non-overlapping with the remaining portion of the time-frequency resources. The operations of 1530 may be performed according to the methods described herein. In some examples, aspects of the operations of 1530 may be as described with reference to Figures 5 to 8 The resource components described are executed.

[0219] At 1535, the UE may refrain from using the set of time-frequency resources to transmit an uplink message based at least in part on the ULCI. The operations of 1535 may be performed according to the methods described herein. In some examples, aspects of the operations of 1535 may be performed as described with reference to Figures 5 to 8 The described transfer components are executed.

[0220] At 1540, the UE may communicate with the base station using the remaining portion of the time-frequency resources. The operations of 1540 may be performed according to the methods described herein. In some examples, aspects of the operations of 1540 may be performed as described with reference to Figures 5 to 8 The communication components described are performed.

[0221] Fig.16A method 1600 is shown to illustrate supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure. The operations of the method 1600 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 1600 may be implemented by a base station 105 or components thereof as described herein. Figures 9 to 12 In some examples, a base station may execute an instruction set to control functional elements of the base station to perform the functions described herein. Additionally or alternatively, a base station may use dedicated hardware to perform various aspects of the functions described herein.

[0222] At 1605, the base station may determine an operational state of the UE to apply the preemption indication based at least in part on the priority of the channel associated with the preemption indication (e.g., DLPI or ULCI). The operation of 1605 may be performed according to the methods described herein. In some examples, various aspects of the operation of 1605 may be performed as described with reference to Figures 9 to 12 Describes the operations the state manager performs.

[0223] At 1610, the base station may transmit a configuration message including a parameter indicating the operating state to the UE. The operations of 1610 may be performed according to the methods described herein. In some examples, various aspects of the operations of 1610 may be performed as described with reference to Figures 9 to 12 The transmitter is configured to perform as described.

[0224] At 1615, the base station may transmit to the UE a grant indicating the time-frequency resources scheduled for the channel. The operations of 1615 may be performed according to the methods described herein. In some examples, aspects of the operations of 1615 may be performed as described with reference to Figures 9 to 12 The described grant component is executed.

[0225] At 1620, the base station may transmit an instance of the preemption indication. The operations of 1620 may be performed according to the methods described herein. In some examples, aspects of the operations of 1620 may be performed as described with reference to Figures 9 to 12 The description instructs the transmitter to perform.

[0226] At 1625, the base station may determine the remaining portion of the identified time-frequency resources based at least in part on the instance of the preemption indication and the priority of the channel. The operations of 1625 may be performed according to the methods described herein. In some examples, aspects of the operations of 1625 may be as described with reference to Figures 9 to 12 The resource manager described is executed.

[0227] At 1630, the base station may communicate with the UE using the remaining portion of the time-frequency resources. The operations of 1630 may be performed according to the methods described herein. In some examples, aspects of the operations of 1630 may be performed as described with reference to Figures 9 to 12 The described communication module is executed.

[0228] Fig.17 A method 1700 is shown to illustrate supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure. The operations of the method 1700 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 1700 may be implemented by a base station 105 or components thereof as described herein. Figures 9 to 12 In some examples, a base station may execute an instruction set to control functional elements of the base station to perform the functions described herein. Additionally or alternatively, a base station may use dedicated hardware to perform various aspects of the functions described herein.

[0229] At 1705, the base station may determine an operational state of the UE to apply the preemption indication based at least in part on the priority of the channel associated with the preemption indication (e.g., DLPI or ULCI). The operation of 1705 may be performed according to the methods described herein. In some examples, various aspects of the operation of 1705 may be performed as described with reference to Figures 9 to 12 Describes the operations the state manager performs.

[0230] At 1710, the base station may transmit a configuration message including a parameter indicating the operating state to the UE. The operations of 1710 may be performed according to the methods described herein. In some examples, various aspects of the operations of 1710 may be performed as described with reference to Figures 9 to 12 The transmitter is configured to perform as described.

[0231] At 1715, the base station may transmit to the UE a grant indicating the time-frequency resources scheduled for the channel. The operations of 1715 may be performed according to the methods described herein. In some examples, aspects of the operations of 1715 may be performed as described with reference to Figures 9 to 12 The described grant component is executed.

[0232] At 1720, the base station may transmit an instance of a preemptive indication including a DLPI. The operations of 1720 may be performed according to the methods described herein. In some examples, aspects of the operations of 1720 may be performed as described with reference to Figures 9 to 12 The description instructs the transmitter to perform.

[0233] At 1725, the base station may refrain from using the time-frequency resources to transmit the channel based at least in part on the DLPI. The operations of 1725 may be performed according to the methods described herein. In some examples, aspects of the operations of 1725 may be performed as described in reference to Figures 9 to 12 The transfer manager described here is used to perform the

[0234] At 1730, the base station may determine the remaining portion of the identified time-frequency resources based at least in part on the instance of the preemption indication and the priority of the channel. The operations of 1730 may be performed according to the methods described herein. In some examples, aspects of the operations of 1730 may be as described with reference to Figures 9 to 12 The resource manager described is executed.

[0235] At 1735, the base station may communicate with the UE using the remaining portion of these time-frequency resources. The operations of 1735 may be performed according to the methods described herein. In some examples, aspects of the operations of 1735 may be performed as described with reference to Figures 9 to 12 The described communication module is executed.

[0236] Fig.18 A method 1800 is shown to illustrate supporting priority indication for downlink preemption and uplink cancellation according to aspects of the present disclosure. The operations of the method 1800 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 1800 may be implemented by a base station 105 or components thereof as described herein. Figures 9 to 12 In some examples, a base station may execute an instruction set to control functional elements of the base station to perform the functions described herein. Additionally or alternatively, a base station may use dedicated hardware to perform various aspects of the functions described herein.

[0237] At 1805, the base station may determine an operational state of the UE to apply the preemption indication based at least in part on the priority of the channel associated with the preemption indication (e.g., DLPI or ULCI). The operations of 1805 may be performed according to the methods described herein. In some examples, various aspects of the operations of 1805 may be performed as described with reference to Figures 9 to 12 Describes the operations the state manager performs.

[0238] At 1810, the base station may transmit a configuration message including a parameter indicating the operating state to the UE. The operations of 1810 may be performed according to the methods described herein. In some examples, various aspects of the operations of 1810 may be performed as described with reference to Figures 9 to 12 The transmitter is configured to perform as described.

[0239] At 1815, the base station may transmit to the UE a grant indicating the time-frequency resources scheduled for the channel. The operations of 1815 may be performed according to the methods described herein. In some examples, aspects of the operations of 1815 may be performed as described with reference to Figures 9 to 12 The described grant component is executed.

[0240] At 1820, the base station may transmit an instance of a preemptive indication including a ULCI. The operations of 1820 may be performed according to the methods described herein. In some examples, aspects of the operations of 1820 may be performed as described with reference to Figures 9 to 12 The description instructs the transmitter to perform.

[0241] At 1825, the base station may determine a set of time-frequency resources in the identified time-frequency resources scheduled for the channel that are non-overlapping with the remaining portion of the time-frequency resources. The operations of 1825 may be performed according to the methods described herein. In some examples, aspects of the operations of 1825 may be as described with reference to Figures 9 to 12 The resource manager described is executed.

[0242] At 1830, the base station may refrain from monitoring the set of time-frequency resources for uplink messages from the UE based at least in part on the ULCI. The operations of 1830 may be performed according to the methods described herein. In some examples, aspects of the operations of 1830 may be as described with reference to Figures 9 to 12 Describes the message monitor to execute.

[0243] At 1835, the base station may determine the remaining portion of the identified time-frequency resources based at least in part on the instance of the preemption indication and the priority of the channel. The operations of 1835 may be performed according to the methods described herein. In some examples, aspects of the operations of 1835 may be as described with reference to Figures 9 to 12 The resource manager described is executed.

[0244] At 1840, the base station may communicate with the UE using the remaining portion of the time-frequency resources. The operations of 1840 may be performed according to the methods described herein. In some examples, aspects of the operations of 1840 may be performed as described with reference to Figures 9 to 12 The described communication module is executed.

[0245] It should be noted that the methods described herein describe possible implementations, and that the various operations and steps may be rearranged or otherwise modified and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0246] The following provides an overview of various aspects of the disclosure:

[0247] Aspect 1: A method for wireless communication at a UE, comprising: receiving a configuration message including a parameter from a base station, the parameter indicating an operating state in which the UE applies a preemption indication based at least in part on the priority of a channel associated with the preemption indication; identifying the priority of the channel and the time-frequency resources scheduled for the channel; receiving an instance of the preemption indication; determining a remaining portion of the identified time-frequency resources based at least in part on the received instance of the preemption indication and the priority of the identified channel; and communicating with the base station using the remaining portion of the time-frequency resources.

[0248] Aspect 2: The method of Aspect 1, wherein the preemption indication comprises an uplink cancellation indication.

[0249] Aspect 3: The method of Aspect 2 further includes: determining a set of time-frequency resources among the identified time-frequency resources scheduled for the channel, which time-frequency resource set is non-overlapping with the remaining part of these time-frequency resources; and suppressing the use of the time-frequency resource set to transmit an uplink message based at least in part on the uplink cancellation indication.

[0250] Aspect 4: A method as in any one of Aspects 2 to 3, further comprising: determining a set of time-frequency resources scheduled for a second channel associated with a second priority different from the priority of the channel, the set of time-frequency resources being non-overlapping with the remaining portion of the time-frequency resources; and transmitting the second channel using the set of time-frequency resources based at least in part on the operating state and the uplink cancellation indication being associated with the priority.

[0251] Aspect 5: The method of aspect 4, wherein the second channel is associated with a carrier different from the channel.

[0252] Aspect 6: The method as in any one of Aspects 2 to 5, further comprising: receiving a message indicating a set of time-frequency resources used for the uplink cancellation indication; and monitoring the set of time-frequency resources to look for the uplink cancellation, wherein an instance of receiving a preemptive indication is based at least in part on the monitoring.

[0253] Aspect 7: The method of Aspect 1, wherein the preemption indication comprises a downlink preemption indication.

[0254] Aspect 8: The method of Aspect 7 further includes: determining a set of time-frequency resources among the identified time-frequency resources scheduled for the channel, which time-frequency resource set is non-overlapping with the remaining part of these time-frequency resources; and suppressing monitoring of the time-frequency resource set based at least in part on the downlink pre-emption indication.

[0255] Aspect 9: A method as in any one of Aspects 7 to 8, further comprising: determining a set of time-frequency resources scheduled for a second channel associated with a second priority different from the priority of the channel, which set of time-frequency resources is non-overlapping with the remaining portion of these time-frequency resources; and monitoring the set of time-frequency resources used for the second channel based at least in part on the operating state and the downlink preemption indication associated with the priority.

[0256] Aspect 10: The method of aspect 9, wherein the second channel is associated with a carrier different from the channel.

[0257] Aspect 11: The method as in any one of Aspects 7 to 10 further includes: receiving a message indicating a set of time-frequency resources used for the downlink preemption indication; and monitoring the set of time-frequency resources used for the downlink preemption indication, wherein receiving an instance of the preemption indication is at least partially based on the monitoring.

[0258] Aspect 12: The method according to any one of aspects 1 to 11, further comprising: configuring the UE to monitor both a downlink preemption indication and an uplink cancellation indication.

[0259] Aspect 13: A method as in Aspect 12, wherein configuring the UE to monitor both downlink preemption indication and uplink cancellation indication comprises: receiving a first message configuring the UE to monitor downlink preemption indication; and receiving a second message configuring the UE to monitor uplink cancellation indication.

[0260] Aspect 14: The method of any one of aspects 1 to 13, further comprising: determining a plurality of channels based at least in part on the operating state, the plurality of channels including a channel in which the UE is to apply the preemption indication.

[0261] Aspect 15: The method of Aspect 14, wherein the plurality of channels include at least two channels having different priorities.

[0262] Aspect 16: A method for performing wireless communications at a base station, comprising: determining an operating state of a UE applying a preemption indication based at least in part on a priority of a channel associated with the preemption indication; transmitting a configuration message including parameters indicating the operating state to the UE; transmitting to the UE a grant indicating time-frequency resources scheduled for the channel; transmitting an instance of the preemption indication; determining a remaining portion of the identified time-frequency resources based at least in part on the instance of the preemption indication and the priority of the channel; and communicating with the UE using the remaining portion of the time-frequency resources.

[0263] Aspect 17: The method of Aspect 16, wherein the preemption indication comprises an uplink cancellation indication.

[0264] Aspect 18: The method of Aspect 17 further includes: determining a set of time-frequency resources among the identified time-frequency resources scheduled for the channel, which set of time-frequency resources is non-overlapping with the remaining part of these time-frequency resources; and suppressing monitoring of the time-frequency resource set to search for uplink messages from the UE based at least in part on the uplink cancellation indication.

[0265] Aspect 19: A method as in any one of Aspects 17 to 18, further comprising: determining a set of time-frequency resources for a second channel associated with a second priority different from the priority of the channel, the set of time-frequency resources being non-overlapping with the remainder of the time-frequency resources; and monitoring the set of time-frequency resources for the second channel based at least in part on the operating state and the uplink cancellation indication being associated with the priority.

[0266] Aspect 20: The method of aspect 19, wherein the second channel is associated with a carrier different from the channel.

[0267] Aspect 21: The method as in any one of Aspects 17 to 20, further comprising: transmitting a message indicating a time-frequency resource set used for the uplink cancellation indication; and using the time-frequency resource set to transmit the uplink cancellation indication.

[0268] Aspect 22: The method as in any one of Aspect 16, wherein the preemption indication comprises a downlink preemption indication.

[0269] Aspect 23: The method of aspect 22, further comprising: refraining from using the time-frequency resources to transmit the channel based at least in part on the downlink preemption indication.

[0270] Aspect 24: A method as in any one of Aspects 22 to 23, further comprising: determining a set of time-frequency resources for a second channel associated with a second priority different from the priority of the channel, the set of time-frequency resources being non-overlapping with the remainder of the time-frequency resources; and transmitting the second channel using the set of time-frequency resources based at least in part on the operating state and the downlink preemption indication being associated with the priority.

[0271] Aspect 25: The method of aspect 24, wherein the second channel is associated with a carrier different from the channel.

[0272] Aspect 26: The method as in any one of Aspects 22 to 25, further comprising: transmitting a message indicating a time-frequency resource set used for the downlink preemption indication; and using the time-frequency resource set to transmit the downlink preemption indication.

[0273] Aspect 27: The method of any one of aspects 16 to 26, further comprising: configuring the UE to monitor both a downlink preemption indication and an uplink cancellation indication.

[0274] Aspect 28: A method as in Aspect 27, wherein configuring the UE to monitor both downlink preemption indications and uplink cancellation indications comprises: transmitting a first message configuring the UE to monitor downlink preemption indications; and transmitting a second message configuring the UE to monitor uplink cancellation indications.

[0275] Aspect 29: An apparatus for performing wireless communications 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 a method as described in any one of Aspects 1 to 15.

[0276] Aspect 30: An apparatus for wireless communication at a UE, comprising at least one device for performing the method of any one of aspects 1 to 15.

[0277] Aspect 31: A non-transitory computer-readable medium storing a code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method of any one of aspects 1 to 15.

[0278] Aspect 32: An apparatus for performing wireless communications 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 a method as described in any one of Aspects 16 to 28.

[0279] Aspect 33: An apparatus for wireless communication at a base station, comprising at least one means for performing the method of any one of Aspects 16 to 28.

[0280] Aspect 34: 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 of any one of aspects 16 to 28.

[0281] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein may also be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applied to various 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.

[0282] The information and signals described herein may be represented using any of a variety of different techniques and technologies. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0283] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or performed with a general purpose processor, a DSP, an ASIC, a CPU, 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 herein. A 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, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0284] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted by a computer-readable medium as one or more instructions or codes. Other examples and implementations fall within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features that implement the functions may also be physically located in various locations, including being distributed so that parts of the functions are implemented at different physical locations.

[0285] Computer-readable medium includes both non-transient computer storage medium and communication medium, and it includes any medium that facilitates computer program to transfer from one place to another place.Non-transient storage medium can be any available medium that can be accessed by general or special-purpose computer.As an example and not limitation, non-transient computer-readable medium can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, disk storage or other magnetic storage device, or can be used to carry or store instruction or data structure form of desired program code means and can be accessed by general or special-purpose computer or general or special-purpose processor any other non-transient medium.Similarly, any connection is also properly referred to as computer-readable medium.For example, if software is transmitted from website, server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then this coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are just included in the definition of computer-readable medium. Disk and disc as used herein include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0286] As used herein (including in the claims), "or" used in a list of items (e.g., a list of items with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Similarly, as used herein, the phrase "based on" should not be interpreted as referring to a closed set of conditions. For example, an example step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0287] In the accompanying drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number that distinguishes between similar components. If only the first reference number is used in the specification, the description may apply to any of the similar components having the same first reference number regardless of the second reference number, or other subsequent reference numbers.

[0288] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that can be implemented or fall within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration" and does not mean "better than" or "better than other examples." This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0289] The description herein is provided to enable one of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to one of ordinary skill in the art, and the universal principles defined herein may 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 should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a user equipment UE, include: receiving a configuration message including a parameter indicating an operational state of the UE in which a preemption indication is applied to a set of time-frequency resources in a plurality of time-frequency resources scheduled for communication based at least in part on a priority of a channel associated with the preemption indication; receiving an instance of said preemption indication; as well as According to the operating state, the preemption indication is applied to the set of time-frequency resources at least in part based on the priority of the channel, wherein a remaining portion of the plurality of time-frequency resources can be used for communication by the UE via at least one channel, and the remaining portion of the plurality of time-frequency resources is different from the set of time-frequency resources.

2. The method of claim 1, wherein the preemption indication comprises an uplink cancellation indication.

3. The method of claim 2, further comprising: include: Determine the set of time-frequency resources among the plurality of time-frequency resources scheduled for the channel, the set of time-frequency resources being non-overlapping with the remaining portion of the plurality of time-frequency resources; as well as Using the set of time-frequency resources to transmit an uplink message is refrained from based at least in part on the uplink cancellation indication.

4. The method of claim 2, further comprising: include: determining a second set of time-frequency resources scheduled for a second channel associated with a second priority level different than the priority level of the channel, the second set of time-frequency resources being non-overlapping with the remaining portion of the plurality of time-frequency resources; as well as The second channel is transmitted using the second set of time-frequency resources based at least in part on the operational status and the uplink cancellation indication being associated with the priority.

5. The method of claim 2, further comprising: include: receiving a message indicating the set of time-frequency resources used for the uplink cancellation indication; as well as The set of time-frequency resources used for the uplink cancellation indication is monitored, wherein the instance of receiving the preemption indication is based at least in part on the monitoring. The method of claim 1 , wherein the preemption indication comprises a downlink preemption indication.

7. The method of claim 6, further comprising: include: Determine the set of time-frequency resources among the plurality of time-frequency resources scheduled for the channel, the set of time-frequency resources being non-overlapping with the remaining portion of the plurality of time-frequency resources; as well as Monitoring the set of time-frequency resources is refrained from based at least in part on the downlink preemption indication.

8. The method of claim 6, further comprising: include: determining a second set of time-frequency resources scheduled for a second channel associated with a second priority level different than the priority level of the channel, the second set of time-frequency resources being non-overlapping with the remaining portion of the plurality of time-frequency resources; and The second set of time-frequency resources for the second channel is monitored based at least in part on the operational status and the downlink preemption indication being associated with the priority level.

9. The method of claim 6, further comprising: include: receiving a message indicating the set of time-frequency resources for the downlink preemption indication; as well as The set of time-frequency resources for the downlink preemption indication is monitored, wherein the instance of receiving the preemption indication is based at least in part on the monitoring.

10. The method of claim 1, further comprising: include: The UE is configured to monitor both downlink pre-emption indications and uplink cancellation indications.

11. The method of claim 10, wherein the UE is configured to monitor both the downlink preemption indication and the uplink cancellation indication. include: receiving a first message configuring the UE to monitor the downlink preemption indication; as well as A second message is received that configures the UE to monitor for the uplink cancellation indication.

12. The method of claim 1, further comprising: include: A plurality of channels is determined based at least in part on the operating state, the plurality of channels including the channel in which the UE is to apply the preemption indication.

13. A method for wireless communication at a network device, include: transmitting a configuration message to a user equipment (UE), the configuration message comprising a parameter indicating an operational state of the UE in which a preemption indication is applied to a set of time-frequency resources of a plurality of time-frequency resources scheduled for communication based at least in part on a priority of a channel associated with the preemption indication; transmitting to the UE a grant indicating the set of time-frequency resources scheduled for the channel; and An instance of the preemption indication is transmitted, wherein a remaining portion of the plurality of time-frequency resources is usable for communication by the network device via at least one channel, the remaining portion of the plurality of time-frequency resources being different from the set of time-frequency resources. The method of claim 13 , wherein the preemption indication comprises an uplink cancellation indication.

15. The method of claim 14, further comprising: include: Determine the set of time-frequency resources among the plurality of time-frequency resources scheduled for the channel, the set of time-frequency resources being non-overlapping with the remaining portion of the plurality of time-frequency resources; as well as Monitoring the set of time-frequency resources for an uplink message from the UE is refrained from based at least in part on the uplink cancellation indication.

16. The method of claim 14, further comprising: include: determining a second set of time-frequency resources for a second channel associated with a second priority level different than the priority level of the channel, the second set of time-frequency resources being non-overlapping with the remaining portion of the plurality of time-frequency resources; as well as The second set of time-frequency resources for the second channel is monitored based at least in part on the operational status and the uplink cancellation indication being associated with the priority.

17. The method of claim 14, further comprising: include: transmitting a message indicating the set of time-frequency resources used for the uplink cancellation indication; as well as The uplink cancellation indication is transmitted using the set of time-frequency resources.

18. The method of claim 13, wherein the preemption indication comprises a downlink preemption indication.

19. The method of claim 18, further comprising: include: Refraining from using the set of time-frequency resources to transmit the channel based at least in part on the downlink preemption indication.

20. The method of claim 18, further comprising: include: determining a second set of time-frequency resources for a second channel associated with a second priority level different than the priority level of the channel, the second set of time-frequency resources being non-overlapping with the remaining portion of the plurality of time-frequency resources; and The second channel is transmitted using the second set of time-frequency resources based at least in part on the operating status and the downlink preemption indication being associated with the priority level.

21. The method of claim 18, further comprising include: transmitting a message indicating the set of time-frequency resources used for the downlink preemption indication; as well as The downlink preemption indication is transmitted using the set of time-frequency resources.

22. The method of claim 13, further comprising: include: The UE is configured to monitor both downlink pre-emption indications and uplink cancellation indications.

23. The method of claim 22, wherein the UE is configured to monitor both the downlink preemption indication and the uplink cancellation indication. include: transmitting a first message configuring the UE to monitor the downlink preemption indication; as well as A second message is transmitted that configures the UE to monitor for the uplink cancellation indication.

24. An apparatus for wireless communication at a user equipment UE, include: processor; as well as a memory coupled to the processor, wherein the memory includes instructions executable by the processor to cause the apparatus to: receiving a configuration message including a parameter indicating an operational state of the UE in which a preemption indication is applied to a set of time-frequency resources in a plurality of time-frequency resources scheduled for communication based at least in part on a priority of a channel associated with the preemption indication; receiving an instance of said preemption indication; as well as According to the operating state, the preemption indication is applied to the set of time-frequency resources at least in part based on the priority of the channel, wherein a remaining portion of the plurality of time-frequency resources can be used for communication by the UE via at least one channel, and the remaining portion of the plurality of time-frequency resources is different from the set of time-frequency resources.

25. The apparatus of claim 24, wherein the preemption indication comprises an uplink cancellation indication.

26. The apparatus of claim 25, wherein the instructions are further executable by the processor to cause the apparatus to: Determining the set of time-frequency resources among the plurality of time-frequency resources scheduled for the channel, the plurality of time-frequency resource sets being non-overlapping with the remaining portion of the time-frequency resources; and Using the set of time-frequency resources to transmit an uplink message is refrained from based at least in part on the uplink cancellation indication.

27. The apparatus of claim 25, wherein the instructions are further executable by the processor to cause the apparatus to: determining a second set of time-frequency resources scheduled for a second channel associated with a second priority level different than the priority level of the channel, the second set of time-frequency resources being non-overlapping with the remaining portion of the plurality of time-frequency resources; and The second channel is transmitted using the second set of time-frequency resources based at least in part on the operational status and the uplink cancellation indication being associated with the priority.

28. The apparatus of claim 25, wherein the instructions are further executable by the processor to cause the apparatus to: receiving a message indicating the set of time-frequency resources used for the uplink cancellation indication; and The set of time-frequency resources used for the uplink cancellation indication is monitored, wherein the instance of receiving the preemption indication is based at least in part on the monitoring.

29. The apparatus of claim 24, wherein the preemption indication comprises a downlink preemption indication.

30. The apparatus of claim 29, wherein the instructions are further executable by the processor to cause the apparatus to: Determining the set of time-frequency resources among the plurality of time-frequency resources scheduled for the channel, the set of time-frequency resources being non-overlapping with the remaining portion of the plurality of time-frequency resources; and Monitoring the set of time-frequency resources is refrained from based at least in part on the downlink preemption indication.

31. The apparatus of claim 29, wherein the instructions are further executable by the processor to cause the apparatus to: determining a second set of time-frequency resources scheduled for a second channel associated with a second priority level different than the priority level of the channel, the second set of time-frequency resources being non-overlapping with the remaining portion of the plurality of time-frequency resources; and The second set of time-frequency resources of the second channel is monitored based at least in part on the operational status and the downlink preemption indication being associated with the priority level.

32. The apparatus of claim 29, wherein the instructions are further executable by the processor to cause the apparatus to: receiving a message indicating the set of time-frequency resources for the downlink preemption indication; and The set of time-frequency resources for the downlink preemption indication is monitored, wherein the instance of receiving the preemption indication is based at least in part on the monitoring.

33. The apparatus of claim 24, wherein the instructions are further executable by the processor to cause the apparatus to: The UE is configured to monitor both downlink pre-emption indications and uplink cancellation indications.

34. The apparatus of claim 24, wherein the instructions are further executable by the processor to cause the apparatus to: A plurality of channels is determined based at least in part on the operating state, the plurality of channels including the channel in which the UE is to apply the preemption indication.

35. An apparatus for wireless communication at a network device, include: processor; as well as a memory coupled to the processor, wherein the memory includes instructions executable by the processor to cause the apparatus to: transmitting a configuration message to a user equipment (UE), the configuration message comprising a parameter indicating an operational state of the UE in which a preemption indication is applied to a set of time-frequency resources of a plurality of time-frequency resources scheduled for communication based at least in part on a priority of a channel associated with the preemption indication; transmitting to the UE a grant indicating the set of time-frequency resources scheduled for the channel; and An instance of the preemption indication is transmitted, wherein a remaining portion of the plurality of time-frequency resources is usable for communication by the network device via at least one channel, the remaining portion of the plurality of time-frequency resources being different from the set of time-frequency resources.

36. The apparatus of claim 35, wherein the preemption indication comprises an uplink cancellation indication.

37. The apparatus of claim 36, wherein the instructions are further executable by the processor to cause the apparatus to: Determining the set of time-frequency resources among the plurality of time-frequency resources scheduled for the channel, the set of time-frequency resources being non-overlapping with the remaining portion of the plurality of time-frequency resources; and Monitoring the set of time-frequency resources for an uplink message from the UE is refrained from based at least in part on the uplink cancellation indication.

38. The apparatus of claim 36, wherein the instructions are further executable by the processor to cause the apparatus to: determining a second set of time-frequency resources for a second channel associated with a second priority level different than the priority level of the channel, the second set of time-frequency resources being non-overlapping with the remaining portion of the plurality of time-frequency resources; and The second set of time-frequency resources for the second channel is monitored based at least in part on the operational status and the uplink cancellation indication being associated with the priority.

39. The apparatus of claim 36, wherein the instructions are further executable by the processor to cause the apparatus to: transmitting a message indicating the set of time-frequency resources used for the uplink cancellation indication; and The uplink cancellation indication is transmitted using the set of time-frequency resources.

40. The apparatus of claim 35, wherein the preemption indication comprises a downlink preemption indication.

41. The apparatus of claim 40, wherein the instructions are further executable by the processor to cause the apparatus to: Refraining from using the set of time-frequency resources to transmit the channel based at least in part on the downlink preemption indication.

42. The apparatus of claim 40, wherein the instructions are further executable by the processor to cause the apparatus to: determining a second set of time-frequency resources for a second channel associated with a second priority level different than the priority level of the channel, the second set of time-frequency resources being non-overlapping with the remaining portion of the plurality of time-frequency resources; and The second channel is transmitted using the second set of time-frequency resources based at least in part on the operating status and the downlink preemption indication being associated with the priority level.

43. The apparatus of claim 40, wherein the instructions are further executable by the processor to cause the apparatus to: transmitting a message indicating the set of time-frequency resources used for the downlink preemption indication; and The downlink preemption indication is transmitted using the set of time-frequency resources.

44. The apparatus of claim 35, wherein the instructions are further executable by the processor to cause the apparatus to: The UE is configured to monitor both downlink pre-emption indications and uplink cancellation indications.

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