Dynamic management of system resources upon cancellation of symbol allocation in time slot format indicator

Abstract

Methods, systems, and devices for wireless communication are described. A first device (e.g., a user equipment (UE)) can receive a first indication associated with the first device, where the first indication indicates a communication direction for each of a plurality of time periods of a time interval. The first device receives a second indication for a set of time periods, where the second indication indicates a cancellation of a communication at the first device during the set of time periods, and where the second indication is based on a communication direction mismatch between the first indication and a third indication. The first device can communicate with a base station during the time interval based on the first indication and the second indication.

Description

[0001] Cross-references

[0002] This patent application claims the benefit of U.S. Provisional Patent Application No. 63 / 000,232, filed by RAGHAVAN et al. on March 26, 2020, entitled “DYNAMICALLY MANAGING SYSTEM RESOURCES UPON CANCELATION OF A SYMBOL ALLOCATION IN SLOTFORMAT INDICATORS,” and U.S. Patent Application No. 17 / 178,107, filed by RAGHAVAN et al. on February 17, 2021, entitled “DYNAMICALLY MANAGING SYSTEM RESOURCES UPON CANCELATION OF A SYMBOLALLOCATION IN SLOT FORMAT INDICATORS,” each of which is assigned to the assignee of this application. Technical Field

[0003] The following relates generally to wireless communications and, more particularly, to dynamically indicating cancellation, overwriting, or preemption of a communication.

[0004] background

[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, and the like. 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, which may be referred to as new radio (NR) systems. These systems may employ various technologies, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform 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 communication with multiple communication devices, which may be further referred to as user equipment (UE).

[0006] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, and the like. These systems may be able to support communications with multiple users by sharing available system resources (e.g., time, frequency, and power). Changes in operating modes, dynamic system conditions, or network topology may increase interference in wireless communication systems. In some cases, resource allocation mismatches may be associated with interference at user equipment (UE).

[0007] Overview

[0008] The described techniques relate to improved methods, systems, devices, and apparatus for dynamically managing system resources upon cancellation of symbol allocations in a slot format indicator. Generally, the described techniques provide interference mitigation based on a first slot format indicator (SFI) (e.g., a first indication) and a cancellation indication (e.g., a second indication). For example, a base station may allocate or assign an SFI to a device (e.g., a user equipment (UE)), and the UE may communicate with the base station based on the SFI. In some cases, the base station may identify a mismatch between the first SFI and a second SFI (e.g., a symbol-level communication direction mismatch), and in some cases, the base station may determine that the mismatch is associated with cross-link interference from uplink transmissions to downlink receptions. In some cases, the second SFI may be associated with the same first UE, while in some additional or alternative cases, the second SF may be associated with a second UE. The base station may transmit a cancellation or override indication that changes resource allocations for one or more symbols (e.g., one or more time periods) associated with the UE, and the UE may communicate with the base station based on the cancellation or override indication and the first SFI.

[0009] A method of wireless communication at a first device is described. The method may include: receiving a first indication associated with the first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of a time interval; receiving a second indication for a set of time periods in the set of time periods, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in the communication direction for at least the set of time periods between the first indication and a third indication indicating a communication direction for each time period in the set of time periods of the time interval; and communicating with a base station during the time interval based on the first indication and the second indication.

[0010] An apparatus for wireless communication at a first device 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 first indication associated with the first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of a time interval; receive a second indication for a set of time periods in the set of time periods, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in communication direction for at least the set of time periods between the first indication and a third indication, the third indication indicating a communication direction for each time period in the set of time periods of the time interval; and communicate with a base station during the time interval based on the first indication and the second indication.

[0011] Another apparatus for wireless communication at a first device is described. The apparatus may include means for: receiving a first indication associated with the first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of a time interval; receiving a second indication for a set of time periods in the set of time periods, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in communication direction for at least the set of time periods between the first indication and a third indication indicating a communication direction for each time period in the set of time periods of the time interval; and communicating with a base station during the time interval based on the first indication and the second indication.

[0012] A non-transitory computer-readable medium storing code for wireless communication at a first device is described. The code may include instructions executable by a processor to: receive a first indication associated with the first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods; receive a second indication for a set of time periods in the set of time periods, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in communication direction for at least the set of time periods between the first indication and a third indication indicating a communication direction for each time period in the set of time periods in the time interval; and communicate with a base station during the time interval based on the first indication and the second indication.

[0013] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the third indication may be associated with the second device.

[0014] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the second indication may be further based on beam switching associated with the second device for the set of time periods.

[0015] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the first indication may be associated with a first frequency band of the first device, and wherein the third indication may be associated with a second frequency band of the first device.

[0016] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the second indication may be further based on a self-interference condition at the first device for at least the set of time periods.

[0017] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the self-interference condition at the first device includes interference between uplink transmissions on the first frequency band and downlink transmissions on the second frequency band for at least the set of time periods, and wherein the second indication indicates cancellation of the uplink transmission on the first frequency band for at least the set of time periods.

[0018] Some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for receiving, based on the second indication, a grant to schedule downlink transmission on the second frequency band for at least the set of time periods.

[0019] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the set of time periods includes a set of symbols, and wherein the time interval includes a time slot.

[0020] In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the communication direction of the first device includes an uplink direction, a downlink direction, a flexible symbol, or a gap symbol.

[0021] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the communication direction mismatch includes an uplink direction indicated by the first indication for the set of time periods and a downlink direction indicated by the third indication for the set of time periods.

[0022] A method for wireless communication at a base station is described. The method may include: transmitting a first indication to a first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of a time interval; transmitting a second indication to the first device for a set of time periods in the set of time periods, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in communication direction for at least the set of time periods between the first indication and a third indication indicating a communication direction for each time period in the set of time periods of the time interval; and communicating with the first device during the time interval based on the first indication and the second indication.

[0023] 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: transmit a first indication to a first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of a time interval; transmit a second indication to the first device for a set of time periods in the set of time periods, wherein the second indication indicates a cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in communication direction for at least the set of time periods between the first indication and a third indication, the third indication indicating a communication direction for each time period in the set of time periods of the time interval; and communicate with the first device during the time interval based on the first indication and the second indication.

[0024] Another apparatus for wireless communication at a base station is described. The apparatus may include means for: transmitting a first indication to a first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of a time interval; transmitting a second indication to the first device for a set of time periods in the set of time periods, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in communication direction for at least the set of time periods between the first indication and a third indication indicating a communication direction for each time period in the set of time periods of the time interval; and communicating with the first device during the time interval based on the first indication and the second indication.

[0025] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: transmit a first indication to a first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of a time interval; transmit a second indication to the first device for a set of time periods in the set of time periods, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in communication direction for at least the set of time periods between the first indication and a third indication indicating a communication direction for each time period in the set of time periods of the time interval; and communicate with the first device during the time interval based on the first indication and the second indication.

[0026] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the third indication may be associated with the second device.

[0027] Some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for receiving a request for a beam change from a second device, and granting the request for a beam change for the second device, wherein transmitting the second indication to the first device may be based on granting the request for a beam change for the second device.

[0028] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the first indication may be associated with a first frequency band of the first device, and wherein the third indication may be associated with a second frequency band of the first device.

[0029] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the second indication may be further based on a self-interference condition at the first device for at least the set of time periods.

[0030] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the self-interference condition at the first device includes interference between uplink transmissions on the first frequency band and downlink transmissions on the second frequency band for at least the set of time periods, and wherein the second indication indicates cancellation of the uplink transmission on the first frequency band for at least the set of time periods.

[0031] Some examples of the methods, apparatus (equipment) and non-transitory computer-readable media described herein may further include operations, features, apparatus or instructions for transmitting, based on the second indication, to the first device a grant to schedule downlink transmission on the second frequency band for at least the set of time periods.

[0032] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the set of time periods includes a set of symbols, and wherein the time interval includes a time slot.

[0033] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the communication direction of the first device includes an uplink direction, a downlink direction, a flexible symbol, or a gap symbol.

[0034] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the communication direction mismatch includes an uplink direction indicated by the first indication for the set of time periods and a downlink direction indicated by the third indication for the set of time periods. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1

[0014] An example of a system for wireless communication that supports indicating communication cancellation based on a communication direction indication in accordance with aspects of the present disclosure is illustrated.

[0037] Figure 2 An example of a wireless communication system 200 that supports indicating communication cancellation based on a communication direction indication in accordance with aspects of the present disclosure is illustrated.

[0038] Figure 3 An example of a process flow 300 that supports indicating communication cancellation based on a communication direction indication in accordance with aspects of the present disclosure is illustrated.

[0039] Figure 4 and 5 A block diagram of a device supporting indicating communication cancellation based on a communication direction indication according to aspects of the present disclosure is shown.

[0040] Figure 6 A block diagram of a dynamic indication manager that supports indicating communication cancellation based on a communication direction indication in accordance with aspects of the present disclosure is shown.

[0041] Figure 7 A diagram illustrating a system including a device that supports indicating communication cancellation based on a communication direction indication in accordance with aspects of the present disclosure is shown.

[0042] Figure 8 and 9 A block diagram of a device supporting indicating communication cancellation based on a communication direction indication according to aspects of the present disclosure is shown.

[0043] Figure 10 A block diagram of a dynamic indication manager that supports indicating communication cancellation based on a communication direction indication in accordance with aspects of the present disclosure is shown.

[0044] Figure 11A diagram illustrating a system including a device that supports indicating communication cancellation based on a communication direction indication in accordance with aspects of the present disclosure is shown.

[0045] Figures 12 to 15 A flow chart illustrating a method for supporting indicating communication cancellation based on a communication direction indication according to aspects of the present disclosure is shown.

[0046] Detailed description

[0047] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, and more. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). In some cases, a mismatch in communication direction between multiple slot format indicators (SFIs) may cause or otherwise be associated with interference at a user equipment (UE) or base station. Changes in operating mode, dynamic system conditions, or network topology may increase the amount of interference in a wireless communication system. For example, a UE may operate in full-duplex mode and may encounter self-interference (e.g., clutter reflections). In some additional or alternative examples, a UE may encounter interference due to a physical obstacle, or the UE may encounter cross-link interference due to another UE. An indication (such as an SFI) may be used to indicate the communication direction (e.g., uplink, downlink, or flexible communication direction) for each of a plurality of time periods (e.g., for each orthogonal frequency division multiplexing (OFDM) symbol within a time slot). In some cases, interference may be based on or associated with a communication direction mismatch between two or more SFIs (e.g., between one or more symbols within a time slot). For example, a first SFI may indicate a downlink direction for a time period for a first UE, while a second SFI may indicate an uplink direction for the time period for a second UE. In some cases, the first UE and / or the second UE may experience, exert, or receive interference based on the communication direction mismatch.

[0048] According to various aspects described herein, a UE may communicate with a base station based on a first SFI and may issue a cancellation or override indication to reduce system interference. For example, the base station may allocate or assign an SFI to the UE, and the UE may communicate with the base station based on the SFI. In some cases, the base station may identify a communication direction mismatch (e.g., a mismatch for one or more symbols) between the first SFI and the second SFI, and the base station may additionally determine that the communication direction mismatch is associated with increased cross-link interference or increased likelihood of interference at the UE. In some cases, the second SFI may be associated with the UE, and in some additional or alternative cases, the second SF may be associated with the second UE. The base station may transmit a cancellation or override indication to the UE to change resource allocation for one or more time periods (e.g., one or more symbols), and the UE may communicate with the base station based on the cancellation or override indication and the first SFI.

[0049] In some cases, the UE may receive a cancellation or overwrite indication indicating cancellation of communications for one or more time periods (e.g., symbols). For example, the UE may receive a cancellation indication indicating cancellation of communications for a time period associated with symbol index 0 of a first SFI. In some additional or alternative examples, the UE may receive a cancellation indication indicating cancellation of communications for multiple time periods (e.g., time periods associated with symbol indices 0, 2, and 3 of the first SFI). Communications based on the first SFI and the cancellation indication may reduce interference and improve achievable rates (e.g., bit error rate, block error rate, etc.).

[0050] Although one or more techniques described herein may be described in the context of one or more UEs, a person of ordinary skill in the art should understand that one or more UEs are described merely as examples of devices, and that one or more techniques described herein may be similarly described in the context of any other device or devices.

[0051] Aspects of the present disclosure are initially described in the context of wireless communication systems. Aspects of the present disclosure are further described with respect to additional wireless communication systems and process flow diagrams. Aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow diagrams related to indicating communication cancellation based on a communication direction indication.

[0052] Figure 1An example of a wireless communication system 100 that supports indicating communication cancellation based on a communication direction indication 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 communication, ultra-reliable (e.g., mission-critical) communication, low-latency communication, communication with low-cost and low-complexity devices, or any combination thereof.

[0053] Base stations 105 may be dispersed throughout a geographic area to form wireless communication system 100 and may be different forms of devices or devices with different capabilities. Base stations 105 and UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which UEs 115 and base stations 105 may establish one or more communication links 125. Coverage area 110 may be an example of a geographic area over which base stations 105 and UEs 115 may support signal communication according to one or more radio access technologies.

[0054] 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 1. The UE 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, relays, integrated access and backhaul (IAB) nodes, or other network equipment), such as Figure 1 As shown in .

[0055] Each base station 105 can communicate with the core network 130, with each other, or both. For example, the base stations 105 can 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 can communicate with each other directly (e.g., directly between the base stations 105), indirectly (e.g., via the core network 130), or both directly and indirectly on the backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, the backhaul links 120 can be or include one or more wireless links.

[0056] One or more of the base stations 105 described herein may include or may be referred to by one of ordinary skill in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a Node B, an evolved Node B (eNB), a next generation Node B, or a Gigabit Node B (any of which may be referred to as a gNB), a Home Node B, a Home Evolved Node B, or other suitable terminology.

[0057] UE 115 may include or be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where "device" may also be referred to as a unit, a station, a terminal, or a client, etc. UE 115 may also include or 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 appliances or vehicles, meters, etc.

[0058] The UE 115 described herein may be capable of communicating 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 .

[0059] 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 operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operation, 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 with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0060] 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 a UE 115. A carrier may operate in a standalone mode in which initial acquisition and connection may be performed by a UE 115 via the carrier, or a carrier may operate in a non-standalone mode in which the connection is anchored using a different carrier (e.g., a different carrier of the same or different radio access technology).

[0061] 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 FDD mode) or may be configured to carry both downlink and uplink communications (e.g., in TDD mode).

[0062] A carrier may be associated with a particular bandwidth of radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the "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 of the wireless communication system 100 (e.g., base station 105, UE 115, or both) may have a hardware configuration that supports communication on a particular carrier bandwidth, or may be configurable to support communication on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate on a portion (e.g., a subband, a BWP) or all of the carrier bandwidth.

[0063] The signal waveform transmitted on the carrier may include multiple subcarriers (e.g., using a multicarrier modulation (MCM) technique such as OFDM or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may include one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, where the symbol period and 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 code rate of the modulation scheme, or both). Thus, the more resource elements received by the UE 115 and the higher the order of the modulation scheme, the higher the data rate of the 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 communications with the UE 115.

[0064] One or more parameter designs for a carrier may be supported, where the parameter designs may include subcarrier spacing (Δf) and 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 the UE 115 may be limited to the one or more active BWPs.

[0065] The time interval of the base station 105 or the UE 115 can be expressed as a multiple of a basic time unit, which can be, for example, a sampling period T s =1 / (Δf max Nf) seconds, where Δf max Nf may represent the maximum supported subcarrier spacing, while Nf may represent the maximum supported discrete Fourier transform (DFT) size. 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).

[0066] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, the 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. 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 codeword periods (e.g., depending on the length of the cyclic prefix added before each codeword period). In some wireless communication systems 100, the time slot may be further divided into a plurality of mini-time slots containing one or more codewords. Excluding the cyclic prefix, each codeword period may include one or more (e.g., Nf) sampling periods. The duration of the codeword period may depend on the subcarrier spacing or the operating frequency band.

[0067] 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)).

[0068] 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 time division multiplexing (TDM), frequency division multiplexing (FDM), or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET)) for physical control channels may be defined by a number of symbol periods and may extend across the system bandwidth or a subset of the 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 UEs 115 may monitor or search the 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 encoded 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 .

[0069] Each base station 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hotspots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used 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 between 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 the logical communication entity operates. The scope of such a cell may range from a smaller area (e.g., a structure, a subset of structures) 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 buildings, or an external space between or overlapping geographic coverage areas 110, among other examples.

[0070] 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 a service subscription 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 a service subscription with the 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 over one or more cells using one or more component carriers.

[0071] 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), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.

[0072] In some examples, base stations 105 can be mobile and, therefore, provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies can overlap, but the different geographic coverage areas 110 can be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies can be supported by different base stations 105. The wireless communication system 100 can 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.

[0073] 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 either synchronous or asynchronous operation.

[0074] 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 incorporate sensors or meters to measure or capture information and relay such information to a central server or application that utilizes the information or presents it 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, healthcare monitoring, wilderness survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging.

[0075] 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 at a reduced peak rate. Other power saving techniques for UEs 115 include entering a power-saving deep sleep mode when not engaged in active communication, operating over a limited bandwidth (e.g., according to narrowband communication), 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 set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of a carrier, or outside a carrier.

[0076] The wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication or various combinations thereof. For example, the wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. The UE 115 can be designed to support ultra-reliable, low-latency or critical functions (e.g., mission-critical functions). Ultra-reliable communication can include private communication or group communication and can be supported by one or more mission-critical services such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions can include prioritization of services, and mission-critical services can be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency can be used interchangeably herein.

[0077] In some examples, UE 115 may also be able to communicate directly with other UEs 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of base station 105 or otherwise unable to receive transmissions from base station 105. In some examples, groups of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, in which each UE 115 transmits to every other UE 115 in the group. In some examples, base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving base station 105.

[0078] 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) communication, vehicle-to-vehicle (V2V) communication, 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, the vehicles in the V2X system can use vehicle-to-network (V2N) communication to communicate with roadside infrastructure (such as roadside units), with the network, or with both via one or more network nodes (e.g., base station 105).

[0079] 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)) that manages 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)) that routes packets or interconnects to external networks. The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for UEs 115 served by base stations 105 associated with the core network 130. User IP packets may be delivered through the user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to the 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.

[0080] 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 transmit / receive 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 consolidated into a single network device (e.g., base station 105).

[0081] The wireless communication system 100 can operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally speaking, the 300 MHz to 3 GHz region is referred to as the ultra-high frequency (UHF) region or the decimeter band because the wavelengths range from approximately 1 decimeter to 1 meter long. UHF waves can be blocked or redirected by buildings and environmental features, but these waves can penetrate various structures sufficiently for macrocells to provide service to UEs 115 located indoors. Transmissions using UHF waves can be associated with smaller antennas and a shorter range (e.g., less than 100 kilometers) compared to transmissions using the lower frequencies and longer wavelengths in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0082] The wireless communication system 100 may also operate in a super high frequency (SHF) region using a frequency band from 3 GHz to 30 GHz (also known as a centimeter band) or in an extremely high frequency (EHF) region of the 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 the UE 115 and the base station 105, and the EHF antennas of the corresponding devices may be smaller and more closely spaced than the UHF antennas. 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 techniques disclosed herein may be employed across transmissions using one or more different frequency regions, and the use of frequency bands specified across these frequency regions may vary by country or regulatory agency.

[0083] 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 the unlicensed band may be based on a carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in the licensed band. Operations in the unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.

[0084] The base station 105 or UE 115 may be equipped with multiple antennas that can be used to employ techniques 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 within 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 several rows and columns of antenna ports 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.

[0085] The base station 105 or the UE 115 can use MIMO communication to exploit multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such a technique may be referred to as spatial multiplexing. For example, a transmitting device may transmit multiple signals via different antennas or different antenna combinations. Similarly, a 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 techniques include single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0086] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., base station 105, 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 can 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 can include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to the signals carried via the antenna elements associated with that device. The adjustments associated with each antenna element can be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0087] The base station 105 or the UE 115 may use beam sweeping techniques as part of a beamforming operation. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the base station 105 in different directions. For example, the base station 105 may transmit signals according to different sets of beamforming weights associated with different transmission directions. The transmissions in different beam directions may be used (e.g., by a transmitting device (such as the base station 105) or a receiving device (such as the UE 115)) to identify a beam direction for later transmission or reception by the base station 105.

[0088] Some signals, such as data signals associated with a particular recipient device, may be transmitted by base station 105 in a single beam direction, e.g., a direction associated with a recipient device, such as UE 115. In some examples, a beam direction associated with transmissions along a single beam direction may be determined based on signals transmitted in one or more beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions and may report to base station 105 an indication of the signal received by UE 115 with the highest signal quality or other acceptable signal quality.

[0089] 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 reference signals that may be precoded or unprecoded (e.g., cell-specific reference signals (CRS), channel state information reference signals (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).

[0090] A receiving device (e.g., UE 115) may attempt multiple receive configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from base station 105. For example, the receiving device may attempt multiple receive directions by receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array (e.g., different directional listening weight sets), or processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different receive configurations or receive directions. In some examples, the receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving data signals). The single receive configuration may be aligned on a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).

[0091] The wireless communication system 100 can 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 can be IP-based. The radio link control (RLC) layer can perform packet segmentation and reassembly to communicate on the logical channel. The media access control (MAC) layer can perform priority handling and multiplex the logical channel into the transport channel. The MAC layer can also use error detection technology, error correction technology, or both to support retransmission of the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer can provide the establishment, configuration and maintenance of the RRC connection of the radio bearer that supports user plane data between the UE 115 and the base station 105 or the core network 130. In the physical layer, the transport channel can be mapped to the physical channel.

[0092] 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 a cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve MAC layer throughput 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 particular time slot for data received in a previous symbol in that time slot. In other cases, the device may provide HARQ feedback in a subsequent time slot or based on some other time interval.

[0093] UE 115 may communicate with base station 105 during each time interval (e.g., each time slot). In some cases, base station 105 may transmit an indication (such as an SFI) to UE 115, and UE 115 may communicate with base station 105-b based on the SFI. The base station may identify interference or the potential for interference at UE 115 (e.g., based on a mismatch in communication direction between the transmitted SFI and another SFI for UE 115 or for a different UE 115). Base station 105 may transmit a cancellation indication to UE 115 based on identifying interference from both SFIs, and UE 115 may communicate with base station 105 based on the cancellation indication and the first SFI. In some cases, UE 115 may transmit a preemption indication to base station 105, and base station 105 may transmit a cancellation indication based on the preemption indication.

[0094] According to some aspects, UE 115 may communicate with base station 105 based on receiving the first SFI and the cancellation indication, and the communication based on the first SFI and the cancellation indication may reduce interference at UE 115. Additionally or alternatively, the communication based on the first SFI and the cancellation indication may improve resource efficiency. For example, the SFI may include a number of time periods (e.g., 14 symbols), and one or more time periods may be associated with interference. The cancellation indication may reduce interference by adjusting or eliminating communication during one or more time periods associated with interference while maintaining communication during the remaining time periods.

[0095] Figure 2 An example of a wireless communication system 200 that supports indicating communication cancellation based on a communication direction indication according to aspects of the present disclosure is illustrated. In some examples, the wireless communication system 200 may implement the communication system 200 as described with reference to FIG. Figure 1Aspects of a wireless communication system 100 are described. The wireless communication system includes a base station 105-a, a UE 115-a, and a UE 115-b. Generally, the wireless communication system 200 illustrates an example in which the base station 105-a can transmit an indication 215 (e.g., a cancellation indication, a preemption indication, etc.) based on one or more (SFIs) 205.

[0096] In some cases, a wireless communication system may be susceptible to interference at a UE (e.g., UE 115-a and / or UE 115-b). For example, UE 115-a may experience interference, and the interference may be self-imposed (e.g., self-interference, clutter, or local scattering around the UE, etc.) and / or associated with UE 115-b (e.g., cross-link interference). In some cases, canceling or changing the scheduling of an entire time interval (e.g., a time slot) may result in inefficient resource usage, and changing the direction of communication for one or more time periods (e.g., symbols) of the SFI 205 may increase system interference. This may be particularly problematic for a large number of UEs to be served in a cell, and changing the SFI across multiple UEs may lead to coordination issues.

[0097] The base station 105-a may communicate with a number of UEs 115, and the base station 105-a may transmit an SFI 205 to the UEs 115. In some examples, the SFI 205-a may be associated with the UE 115-a, and the SFI 205-b may be associated with the UE 115-b. In some additional or alternative examples, both the SFI 205-a and the SFI 205-b may be associated with the UE 115-a (e.g., the UE 115-b and / or the base station 105-a may operate in full-duplex mode such that the SFI 205-a is associated with a first frequency band of the UE 115-a, and the SFI 205-b is associated with a second frequency band of the UE 115-a). The SFI 205 may be associated with a particular set of resources (e.g., a beam, a channel, a channel group, etc.). In some cases, SFI 205-a and SFI 205-b may indicate a mismatch in symbol 210 (e.g., a communication direction mismatch) for one or more time periods. For example, SFI 205-a may indicate an uplink communication direction for symbol 210, while SFI 205-b may indicate a downlink communication direction for symbol 110. Base station 105-a may transmit indication 215 (e.g., cancel or overwrite indication) to UE 115-a based on the mismatch in symbol 210. Indication 215 may indicate one or more time periods for UE 115-a to refrain from communicating. Indication 215 may additionally indicate a communication direction for UE 115-a to refrain from using during the one or more time periods. UE 115-a may communicate with base station 105-a based on SFI 205-a and indication 215. The methods and procedures described herein may improve system efficiency, support dynamic resource adjustment, and reduce transmission interference.

[0098] UE 115-a may operate in full-duplex mode, and base station 105-a may additionally operate in full-duplex mode. In this way, UE 115-a and base station 105-a may be able to transmit and receive in the same time period. In some cases, SFI 205-a may be associated with a first frequency band of UE 115-a, and SFI 205-b may be associated with a second frequency band of UE 115-a. UE 115-a may communicate with base station 105-a based on SFI 205-a and SFI 205-b, and in some examples, UE 115-a may experience or be susceptible to interference. In some cases, interference (e.g., clutter corresponding to local reflection or scattering) may be based on a mismatch in the communication direction in codeword 210 (or a set of time periods). Base station 105-a may transmit an indication 215 to UE 115-a (e.g., canceling or overwriting the indication) based on the mismatch in codeword 210. In some cases, base station 105-a may determine that UE 115-a is susceptible to interference levels that meet a threshold, and base station 105-a may transmit indication 215 based on the determination. In some examples, UE 115-a may measure and report the interference level to base station 105-a, and base station 105-a may transmit indication 215 based on the reported interference level. For example, base station 105-a may transmit indication 215 based on the overall interference level, a change in interference, the timing of interference, the location of interference, or any combination thereof. In some additional or alternative cases, UE 115-a may transmit a preemption indication to base station 105-a, and base station 105-a may transmit indication 215 based on the preemption indication. The preemption indication may provide the base station with a list of preferred or non-preferred SFIs based on the UE's instantaneous usage scenario, and may be based on interference measurements, signal strength, or network characteristics, or any combination thereof.

[0099] UE 115-a may receive indication 215 and communicate with base station 105-a based on indication 215 and SFI 205-a and SFI 205-b. For example, base station 105-a may transmit a cancel or overwrite indication to UE 115-b, and the cancel indication may indicate the symbols that the UE should refrain from using for communicating with base station 105-b. Base station 105-a may transmit indication 215 to UE 115-a, and indication 215 may indicate that UE 115-a should refrain from communicating (e.g., transmitting, receiving, etc.) during the symbol at index 13 of SFI 205-a. In some cases, indication 215 may indicate multiple symbols and / or multiple frequency bands. For example, indication 215 may indicate that UE 115-a should refrain from communicating with base station 105-a during the symbols at indexes 12 and 13 of both SFI 205-a and SFI 205-b. In some cases, the indication 215 may reduce interference at the UE 115 - a by enabling precise resource allocation adjustments.

[0100] In some cases, the base station 105-a may pre-allocate an SFI 205-a to a full-duplex capable UE 115-a on a first frequency band and pre-allocate an SFI 205-b to the UE 115-a on a second frequency band. The UE 115-a may perform uplink transmissions on the first frequency band, but may not simultaneously receive downlink transmissions on the second frequency band due to clutter and / or self-interference. The base station 105-a may transmit an indication 215 to cancel first and / or second frequency band transmissions (e.g., uplink transmissions, downlink transmissions, flexible or gapped symbol transmissions) on one or more symbols. The UE 115-a may communicate with the base station 105-a based on the indication 215. In some cases, because the uplink transmission on the first frequency band is canceled, downlink reception on the second frequency band may be possible at the time of the cancellation. The base station 105-a may schedule one or more downlink transmissions on the second frequency band for the UE 115-a. In some cases, the base station 105 - a may schedule one or more downlink transmissions on the second frequency band based on the indication 215 and / or the SFI 205 - b .

[0101] Base station 105-a may communicate with multiple UEs 115 in a cell. In some cases, SFI 205-a may be associated with UE 115-a, while SFI 205-b may be associated with UE 115-b. SFI 205 may be assigned a priori to several UEs 115. For example, SFI may be associated with a time interval (e.g., a time slot), and the SFI may be transmitted to UE 115 several time slots before the associated time interval. In some cases, interference or the potential for interference may be associated with a mismatch in communication direction for a set of time periods indicated by SFI 205-a and SFI 205-b (e.g., a mismatch in communication direction indicated in symbol 210). In some additional or alternative cases, interference may be associated with dynamic interaction and / or dynamic channel conditions. In some cases, a mismatch in symbol 210 (e.g., a symbol mismatch, a communication direction mismatch, etc.) may not cause interference between UE 115-a and UE 115-b when SFI 205-a and SFI 205-b are assigned or transmitted. For example, SFI 205-a may indicate an uplink communication direction for UE 115-a during symbol 210, while SFI 205-b may indicate a downlink communication direction for UE 115-b during symbol 210. If UEs 115 select beam directions (or are assigned beam directions) that do not interfere with each other during symbol 210, both UE 115-a and UE 115-b may communicate during symbol 210. A communication direction mismatch during symbol 210 (or multiple symbols or time periods) may be considered benign when an interference measurement for the time period fails to meet a threshold, when a signal strength threshold is met, when a received power threshold is met, etc.

[0102] However, in some cases, the mismatch during codeword 210 may be associated with interference. For example, UE 115-b may experience signal fading due to Doppler / mobility and / or obstruction (e.g., hands or bodies, people, vehicles, buildings, objects in the local environment, etc.). Signal fading and / or obstruction may be associated with reduced beam quality, reduced signal strength, reduced reference signal received power, device movement speed, angular spread, Doppler effect, or any combination thereof. UE 115-b may transmit a beam change request to base station 105-a, and base station 105-a may grant the beam change request. In some cases, the beam change may increase interference and / or reduce quality of service (QoS) at UE 115-a. For example, UE 115-a may experience cross-link interference (or may expect cross-link interference) when UE 115-b communicates on the new beam due to the beam change request. In some cases, base station 105-a may transmit an indication 215 to UE 115-a to reduce interference and improve QoS at UE 115-a. For example, upon granting a beam change request to UE 115-b, base station 105-a may determine that the expected interference level meets a threshold (e.g., for one or more time periods during which there is a mismatch in communication direction between SFI 205-a and SFI 205-b), and base station 105-a may transmit indication 215 to mitigate the expected interference. In some additional or alternative examples, base station 105-a may transmit indication 215 based on a preemption indication received from UE 115-a or UE 115-b. Indication 215 may mitigate interference associated with the mismatch during symbol 210 (or set of symbols). Wireless communication system 200 may thereby reduce system interference in a dynamic communication environment.

[0103] Figure 3 An example of a process flow 300 for supporting indication of communication cancellation based on a communication direction indication in accordance with aspects of the present disclosure is illustrated. The process flow 300 includes a base station 105-b and a UE 115-c. These may be reference Figure 1 and 2 Examples of corresponding devices described herein. In some cases, indicating communication cancellation based on a communication direction indication can reduce interference and improve the efficiency of resource use. The following alternative examples can be implemented in which some steps are performed in a different order than described or not performed at all. In some cases, each step may include additional features not mentioned below, or further steps may be added.

[0104] At 305, the base station 105-b may transmit a first indication to the UE 115-c. The UE 115-c may receive the first indication, and the first indication may include or be otherwise associated with a first SFI. The first SFI may indicate, for the UE 115-c, a communication direction for each of a plurality of time periods (e.g., a plurality of symbols) of a time interval (e.g., a time slot). The communication direction may be, for example, uplink, downlink, or flexible.

[0105] At 310, the base station 105-b may transmit a second indication (e.g., a cancellation indication) to the UE 115-c for a set of time periods (e.g., mismatched symbols, interfering symbols) in a plurality of time periods. The UE 115-b may receive the second indication, and the second indication may indicate a cancellation of communication at the UE 115-c during the set of time periods. In some cases, the second indication may be based on a communication direction mismatch between the first indication and a third indication (e.g., a second SFI) for at least the set of time periods, the third indication specifying a communication direction for each of the plurality of time periods in the time interval. For example, the first indication may be associated with a first frequency band of the UE 115-c, and the third indication may be associated with a second frequency band of the UE 115-c. Additionally or alternatively, the first indication may be associated with a first UE (e.g., UE 115-c), and the third indication may be associated with a second UE (not shown). The first indication may indicate an uplink communication direction for a time period associated with index 0 (e.g., a first symbol within a time slot), and the third indication may indicate a downlink communication direction for the time period associated with index 0. In some cases, the first indication indicating an uplink communication direction for a time period and the third indication indicating a downlink communication direction for the time period may be considered a communication direction mismatch, and the base station 105-b may transmit a second indication (e.g., a cancellation indication) based on the mismatch.

[0106] At 315, the base station 105-b and the UE 115-c may communicate during the time interval based on the first indication and the second indication. For example, the second indication may cancel uplink transmission during a time period (e.g., symbol) at index 0 of the SFI associated with the first indication, and the UE 115-c may refrain from transmitting data to the base station 105-b during the first time period. In an additional or alternative example, the second indication may cancel uplink transmission during a time period at index 1 of the SFI associated with the first indication, and the UE 115-c may refrain from receiving data from the base station 105-b during the time period associated with index 1.

[0107] Figure 4A block diagram 400 illustrates a device 405 that supports indicating communication cancellation based on a communication direction indication according to aspects of the present disclosure. The device 405 can be an example of aspects of the UE 115 as described herein. The device 405 can include a receiver 410, a dynamic indication manager 415, and a transmitter 420. The device 405 can also include a processor. Each of these components can be in communication with each other (e.g., via one or more buses).

[0108] The receiver 410 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to indicating communication cancellation based on communication direction indication, etc.). The information may be passed to other components of the device 405. The receiver 410 may be a reference Figure 7 Examples of aspects of the described transceiver 720. The receiver 410 may utilize a single antenna or a collection of antennas.

[0109] The dynamic indication manager 415 may receive a first indication associated with a first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of a time interval; receive a second indication for a set of time periods in the set of time periods, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in the communication direction for at least the set of time periods between the first indication and a third indication, the third indication indicating a communication direction for each time period in the set of time periods of the time interval; and communicate with a base station during the time interval based on the first indication and the second indication. The dynamic indication manager 415 may be an example of aspects of the dynamic indication manager 710 described herein.

[0110] Dynamic indication manager 415 or its subcomponents may be implemented in hardware, in code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of dynamic indication manager 415 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 designed to perform the functions described in this disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0111] The dynamic indication manager 415 or its subcomponents can 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, in accordance with various aspects of the present disclosure, the dynamic indication manager 415 or its subcomponents can be separate and distinct components. In some examples, in accordance with various aspects of the present disclosure, the dynamic indication manager 715 or its subcomponents can 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).

[0112] The transmitter 420 may transmit signals generated by other components of the device 405. In some examples, the transmitter 420 may be co-located with the receiver 410 in a transceiver module. For example, the transmitter 420 may be a reference Figure 7 Examples of aspects of the described transceiver 720. The transmitter 420 may utilize a single antenna or a collection of antennas.

[0113] In some examples, the dynamic indication manager 415 described herein can be implemented as a chipset of a wireless modem, while the receiver 410 and transmitter 420 can be implemented as a collection of analog components (e.g., amplifiers, filters, phase shifters, antennas, etc.). The wireless modem can obtain and decode a signal from the receiver 410 over a receive interface and can output a signal for transmission to the transmitter 420 over a transmit interface.

[0114] The actions performed by the dynamic indication manager 415 as described herein can be implemented to achieve one or more potential advantages. One implementation can allow a device (e.g., UE 115) to save power and increase battery life by mitigating interference in downlink and uplink transmissions to and from UE 115. The dynamic indication manager 415 can effectively organize communications to and from UE 115 to mitigate cross-link interference (CLI) and / or self-interference, thereby reducing the number of retransmissions to and from UE 115, which can save power and increase battery life. By including or configuring a dynamic indication manager 415 according to the examples described herein, a device 405 (e.g., a processor controlling or otherwise coupled to a receiver 415, a transmitter 420, a dynamic indication manager 915, or a combination thereof) can support techniques for reducing processing, reducing power consumption, and more efficiently utilizing communication resources.

[0115] Figure 5A block diagram 500 illustrates a device 505 that supports indicating communication cancellation based on a communication direction indication according to aspects of the present disclosure. The device 505 can be an example of aspects of the device 405 or UE 115 as described herein. The device 505 can include a receiver 510, a dynamic indication manager 515, and a transmitter 530. The device 505 can also include a processor. Each of these components can be in communication with each other (e.g., via one or more buses).

[0116] 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 indicating communication cancellation based on communication direction indication, etc.). The information may be passed to other components of the device 505. The receiver 510 may be a reference Figure 7 Examples of aspects of the described transceiver 720. The receiver 510 may utilize a single antenna or a collection of antennas.

[0117] Dynamic indication manager 515 can be an example of aspects of dynamic indication manager 415 as described herein. Dynamic indication manager 515 can include indication component 520 and communication component 525. Dynamic indication manager 515 can be an example of aspects of dynamic indication manager 710 as described herein.

[0118] The indication component 520 may receive a first indication associated with a first UE (e.g., a first device), wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods for a time interval, and receive a second indication for a set of time periods in the set of time periods, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in the communication direction for at least the set of time periods between the first indication and a third indication, wherein the third indication indicates a communication direction for each time period in the set of time periods for the time interval.

[0119] The communication component 252 can communicate with the base station during the time interval based on the first indication and the second indication.

[0120] The transmitter 530 may transmit signals generated by other components of the device 505. In some examples, the transmitter 530 may be co-located with the receiver 510 in a transceiver module. For example, the transmitter 530 may be a reference Figure 7 Examples of aspects of the described transceiver 720. The transmitter 530 may utilize a single antenna or a collection of antennas.

[0121] A processor of a device (eg, UE 115) (eg, controlling a receiver 510, a transmitter 530, or a processor as described in reference to Figure 7The transceiver 720 described herein can efficiently operate the components of the device described herein to achieve one or more potential advantages. For example, the processor of the device can operate the receiver 510 to receive an indication of the SFI of the device and another indication (such as a cancellation indication) (which can be based on a communication direction mismatch between two SFIs associated with a UE or associated with two different UEs). The processor of the device can control the device to communicate with the base station 105 based on the cancellation indication, which can improve the efficiency and reliability of the device by reducing interference and thereby improving the battery life of the device.

[0122] Figure 6 A block diagram 600 illustrates a dynamic indication manager 605 that supports indicating communication cancellation based on a communication direction indication, in accordance with aspects of the present disclosure. The dynamic indication manager 605 can be an example of aspects of the dynamic indication manager 415, the dynamic indication manager 515, or the dynamic indication manager 710 described herein. The dynamic indication manager 605 can include an indication component 610, a communication component 615, and a timing component 620. Each of these modules can communicate with each other directly or indirectly (e.g., via one or more buses).

[0123] The indication component 610 can receive a first indication associated with a first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of a time interval.

[0124] In some examples, the indication component 610 may receive a second indication for a set of time periods in the group of time periods, wherein the second indication indicates a cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in the direction of communication for at least the set of time periods between the first indication and a third indication, wherein the third indication indicates the direction of communication for each time period in the group of time periods for the time interval.

[0125] In some examples, instructing component 610 may receive a grant to schedule downlink transmission on the second frequency band for at least the set of time periods based on the second indication.

[0126] In some cases, the third indication is associated with the second device.In some cases, the second indication is further based on beam switching associated with the second device for the set of time periods.

[0127] In some cases, the first indication is associated with a first frequency band of the first device, and wherein the third indication is associated with a second frequency band of the first device.

[0128] In some cases, the second indication is further based on a self-interference condition at the first device for at least the set of time periods.

[0129] In some cases, the self-interference condition at the first device includes interference between uplink transmissions on the first frequency band and downlink transmissions on the second frequency band for at least the set of time periods, and wherein the second indication indicates cancellation of uplink transmissions on the first frequency band for at least the set of time periods.

[0130] The communication component 615 can communicate with the base station during the time interval based on the first indication and the second indication.

[0131] In some cases, the communication direction of the first device includes an uplink direction, a downlink direction, a flexible symbol, or a gap symbol.

[0132] In some cases, the communication direction mismatch includes an uplink direction indicated by the first indication for the set of time periods and a downlink direction indicated by the third indication for the set of time periods.

[0133] Timing component 620 can manage the timing of communications with a base station. In some cases, the plurality of time periods comprises a plurality of symbols, and the time interval comprises a time slot. In some cases, the set of time periods comprises a set of symbols.

[0134] Figure 7 A diagram of a system 700 including a device 705 that supports indicating communication cancellation based on a communication direction indication according to aspects of the present disclosure is shown. The device 705 can be an example of a device 405, a device 505, or a UE 115 as described herein, or include components thereof. The device 705 may include components for two-way voice and data communication, including components for transmitting and receiving communications, including a dynamic indication manager 710, an I / O controller 715, a transceiver 720, an antenna 725, a memory 730, and a processor 740. These components may be in electronic communication via one or more buses (e.g., bus 745).

[0135] The dynamic indication manager 710 may receive a first indication associated with a first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods in a time interval; receive a second indication for a set of time periods in the set of time periods, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in the communication direction for at least the set of time periods between the first indication and a third indication, the third indication indicating a communication direction for each time period in the set of time periods in the time interval; and communicate with a base station during the time interval based on the first indication and the second indication.

[0136] I / O controller 715 can manage input and output signals for device 705. I / O controller 715 can also manage peripheral devices that are not integrated into device 705. In some cases, I / O controller 715 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 715 can utilize an operating system, such as or another known operating system. In other cases, I / O controller 715 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 715 may be implemented as part of a processor. In some cases, a user may interact with device 705 via I / O controller 715 or via hardware components controlled by I / O controller 715.

[0137] The transceiver 720 can communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 720 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 720 can also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and demodulate packets received from the antenna.

[0138] In some cases, a wireless device may include a single antenna 725. However, in some cases, the device may have more than one antenna 725, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0139] The memory 730 may include random access memory (RAM) and read-only memory (ROM). The memory 730 may store computer-readable, computer-executable code 735 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, the memory 730 may include, among other things, a basic input / output system (BIOS), which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0140] The processor 740 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, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, the processor 740 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 740. The processor 740 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 730) to cause the device 705 to perform various functions (e.g., a function or task that supports indicating communication cancellation based on a communication direction indication).

[0141] The code 735 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 735 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, the code 735 may not be directly executed by the processor 740, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0142] By including or configuring a dynamic indication manager 710 according to the examples described herein, the device 705 may support techniques for improved communication reliability, reduced latency, improved user experience related to reduced processing, reduced power consumption, more efficient utilization of communication resources, improved coordination between devices, longer battery life, and improved utilization of processing power.

[0143] Figure 8 A block diagram 800 illustrates a device 805 that supports indicating communication cancellation based on a communication direction indication according to aspects of the present disclosure. The device 805 can be an example of aspects of a base station 105 as described herein. The device 805 can include a receiver 810, a dynamic indication manager 815, and a transmitter 820. The device 805 can also include a processor. Each of these components can be in communication with each other (e.g., via one or more buses).

[0144] The receiver 810 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to indicating communication cancellation based on communication direction indication, etc.). The information may be passed to other components of the device 805. The receiver 810 may be a reference Figure 11 Examples of aspects of the described transceiver 1120. The receiver 810 may utilize a single antenna or a collection of antennas.

[0145] The dynamic indication manager 815 may transmit a first indication to a first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of a time interval; transmit a second indication to the first device for a set of time periods in the set of time periods, wherein the second indication indicates a cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in the communication direction for at least the set of time periods between the first indication and a third indication, the third indication indicating a communication direction for each time period in the set of time periods of the time interval; and communicate with the first device during the time interval based on the first indication and the second indication. The dynamic indication manager 815 may be an example of aspects of the dynamic indication manager 1110 described herein.

[0146] The dynamic indication manager 815 or its subcomponents may be implemented in hardware, in code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of the dynamic indication manager 815 or its subcomponents may be performed by a general-purpose processor, a DSP, an application-specific integrated circuit (ASIC), an FPGA or other programmable logic device designed to perform the functions described in this disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0147] The dynamic indication manager 815 or its subcomponents can 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 dynamic indication manager 815 or its subcomponents can be separate and distinct components. In some examples, according to various aspects of the present disclosure, the dynamic indication manager 815 or its subcomponents can 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).

[0148] The transmitter 820 may transmit signals generated by other components of the device 805. In some examples, the transmitter 820 may be co-located with the receiver 810 in a transceiver module. For example, the transmitter 820 may be a reference Figure 11 Examples of aspects of the described transceiver 1120. The transmitter 820 may utilize a single antenna or a collection of antennas.

[0149] By including or configuring a dynamic indication manager 815 according to examples as described herein, the device 805 (e.g., a processor controlling or otherwise coupled to the receiver 810, the transmitter 820, the dynamic indication manager 815, or a combination thereof) can support techniques for reducing processing, reducing power consumption, and more efficiently utilizing communication resources.

[0150] Figure 9 A block diagram 900 illustrates a device 905 that supports indicating communication cancellation based on a communication direction indication according to aspects of the present disclosure. The device 905 can be an example of aspects of the device 805 or base station 105 as described herein. The device 905 may include a receiver 910, a dynamic indication manager 915, and a transmitter 930. 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).

[0151] 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 indicating communication cancellation based on communication direction indication, etc.). The information may be passed to other components of the device 905. The receiver 910 may be a reference Figure 11 Examples of aspects of the described transceiver 1120. The receiver 910 may utilize a single antenna or a collection of antennas.

[0152] Dynamic indication manager 915 may be an example of aspects of dynamic indication manager 815 as described herein. Dynamic indication manager 915 may include indication manager 920 and communication manager 925. Dynamic indication manager 915 may be an example of aspects of dynamic indication manager 1110 as described herein.

[0153] The indication manager 920 may transmit a first indication to the first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of a time interval, and transmit a second indication for a set of time periods in the set of time periods to the first device, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in the communication direction for at least the set of time periods between the first indication and a third indication, wherein the third indication indicates a communication direction for each time period in the set of time periods of the time interval.

[0154] The communication manager 925 may communicate with the first device during the time interval based on the first indication and the second indication.

[0155] The transmitter 930 may transmit signals generated by other components of the device 905. In some examples, the transmitter 930 may be co-located with the receiver 910 in a transceiver module. For example, the transmitter 930 may be a reference Figure 11 Examples of aspects of the described transceiver 1120. The transmitter 930 may utilize a single antenna or a collection of antennas.

[0156] Figure 10 A block diagram 1000 illustrates a dynamic indication manager 1005 that supports indicating communication cancellation based on a communication direction indication in accordance with aspects of the present disclosure. The dynamic indication manager 1005 can be an example of aspects of the dynamic indication manager 815, the dynamic indication manager 915, or the dynamic indication manager 1110 described herein. The dynamic indication manager 1005 can include an indication manager 1010, a communication manager 1015, a beam manager 1020, and a timing manager 1025. Each of these modules can communicate with each other directly or indirectly (e.g., via one or more buses).

[0157] The indication manager 1010 may transmit a first indication to the first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of the time interval.

[0158] In some examples, the indication manager 1010 may transmit a second indication to the first device for a set of time periods in the group of time periods, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in communication direction between the first indication and a third indication for at least the set of time periods, wherein the third indication indicates a communication direction for each time period in the group of time periods for the time interval.

[0159] In some examples, the indication manager 1010 may transmit, based on the second indication, to the first device a grant to schedule downlink transmission on the second frequency band for at least the set of time periods.

[0160] In some cases, the third indication is associated with the second device. In some cases, the first indication is associated with a first frequency band of the first device, and wherein the third indication is associated with a second frequency band of the first device. In some cases, the second indication is further based on a self-interference condition at the first device for at least the set of time periods.

[0161] In some cases, the self-interference condition at the first device includes interference between uplink transmissions on the first frequency band and downlink transmissions on the second frequency band for at least the set of time periods, and wherein the second indication indicates cancellation of uplink transmissions on the first frequency band for at least the set of time periods.

[0162] The communication manager 1015 may communicate with the first device during the time interval based on the first indication and the second indication.

[0163] In some cases, the communication direction of the first device includes an uplink direction, a downlink direction, a flexible symbol, or a gap symbol.

[0164] In some cases, the communication direction mismatch includes an uplink direction indicated by the first indication for the set of time periods and a downlink direction indicated by the third indication for the set of time periods.

[0165] The beam manager 1020 may receive a request for a beam change from the second device. In some examples, the beam manager 1020 may grant the request for a beam change for the second device, wherein transmitting the second indication to the first device is based on granting the request for a beam change for the second device.

[0166] The timing manager 1025 can manage the timing of communications with the first device and / or the second device. In some cases, the plurality of time periods includes a plurality of symbols, and the time interval includes a time slot. In some cases, the set of time periods includes a set of symbols.

[0167] Figure 11 A diagram of a system 1100 including a device 1105 that supports indicating communication cancellation based on a communication direction indication according to aspects of the present disclosure is shown. Device 1105 can be an example of device 805, device 905, or base station 105 as described herein, or include components thereof. Device 1105 may include components for two-way voice and data communication, including components for transmitting and receiving communications, including a dynamic indication manager 1110, a network communication manager 1115, a transceiver 1120, an antenna 1125, a memory 1130, a processor 1140, and an inter-station communication manager 1145. These components may be in electronic communication via one or more buses (e.g., bus 1150).

[0168] The dynamic indication manager 1110 may transmit a first indication to a first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of a time interval; transmit a second indication for a set of time periods in the set of time periods to the first device, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in the communication direction for at least the set of time periods between the first indication and a third indication, the third indication indicating a communication direction for each time period in the set of time periods of the time interval; and communicate with the first device during the time interval based on the first indication and the second indication.

[0169] The network communications manager 1115 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1115 may manage the delivery of data communications for client devices, such as one or more devices (eg, UE 115).

[0170] The transceiver 1120 can communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1120 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 1120 can also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and demodulate packets received from the antenna.

[0171] In some cases, a wireless device may include a single antenna 1125. However, in some cases, the device may have more than one antenna 1125, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0172] The memory 1130 may include RAM, ROM, or a combination thereof. The memory 1130 may store computer-readable code 1135 including instructions that, when executed by a processor (e.g., processor 1140), cause the device to perform the various functions described herein. In some cases, the memory 1130 may include, among other things, a BIOS that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0173] The processor 1140 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, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, the processor 1140 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into the processor 1140. The processor 1140 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1130) to cause the device 1105 to perform various functions (e.g., a function or task that supports indicating communication cancellation based on a communication direction indication).

[0174] The inter-site communication manager 1145 can manage communications with other base stations 105 and can include a controller or scheduler for controlling communications with devices (e.g., UE 115) in collaboration with other base stations 105. For example, the inter-site communication manager 1145 can coordinate the scheduling of transmissions to the devices for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, the inter-site communication manager 1145 can provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0175] The code 1135 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1135 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, the code 1135 may not be directly executed by the processor 1140, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0176] By including or configuring a dynamic indication manager 1105 according to the examples described herein, the device 1105 may support techniques for improved communication reliability, reduced latency, improved user experience associated with reduced processing, reduced power consumption, more efficient utilization of communication resources, improved coordination between devices, longer battery life, and improved utilization of processing capabilities.

[0177] Figure 121. A flow chart of a method 1200 for supporting communication cancellation based on a communication direction indication according to aspects of the present disclosure is shown. The operations of the method 1200 may be implemented by a device (e.g., UE 115) or a component thereof as described herein. For example, the operations of the method 1200 may be implemented by a device (e.g., UE 115) or a component thereof as described herein. Figures 4 to 7 In some examples, a device may execute an instruction set to control functional elements of the device to perform the following functions. Additionally or alternatively, the device may use dedicated hardware to perform various aspects of the following functions.

[0178] At 1205, the device may receive a first indication associated with a first device, wherein the first indication indicates, for the first device, a communication direction for each of a set of time periods of a time interval. The operations of 1205 may be performed according to the methods described herein. In some examples, aspects of the operations of 1205 may be performed as described with reference to Figures 4 to 7 The described instructions are executed by the component.

[0179] At 1210, the device may receive a second indication for a set of time periods in the set of time periods, wherein the second indication indicates a cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in communication direction for at least the set of time periods between the first indication and a third indication indicating a communication direction for each time period in the set of time periods for the time interval. The operations of 1210 may be performed according to the methods described herein. In some examples, aspects of the operations of 1210 may be performed as described with reference to Figures 4 to 7 The described instructions are executed by the component.

[0180] At 1215, the device may communicate with the base station during the time interval based on the first indication and the second indication. The operations of 1215 may be performed according to the methods described herein. In some examples, aspects of the operations of 1215 may be as described with reference to Figures 4 to 7 The described communication components are implemented.

[0181] Figure 13 13. A flow chart of a method 1300 for supporting communication cancellation based on a communication direction indication according to aspects of the present disclosure is shown. The operations of the method 1300 may be implemented by a device (e.g., UE 115) or a component thereof as described herein. For example, the operations of the method 1300 may be implemented by a device (e.g., UE 115) or a component thereof as described herein. Figures 4 to 7 In some examples, a device may execute an instruction set to control functional elements of the device to perform the following functions. Additionally or alternatively, the device may use dedicated hardware to perform various aspects of the following functions.

[0182] At 1305, the device may receive a first indication associated with a first device, wherein the first indication indicates, for the first device, a communication direction for each of a set of time periods of a time interval. 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 with reference to Figures 4 to 7 The described instructions are executed by the component.

[0183] At 1310, the device may receive a second indication for a set of time periods in the set of time periods, wherein the second indication indicates a cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a mismatch in communication direction for at least the set of time periods between the first indication and a third indication indicating a communication direction for each time period in the set of time periods for the time interval. The operations of 1310 may be performed according to the methods described herein. In some examples, aspects of the operations of 1310 may be performed as described with reference to Figures 4 to 7 The described instructions are executed by the component.

[0184] At 1315, the device may associate the first indication with the first frequency band of the first device, and wherein the third indication is associated with the second frequency band of the first device. The operations of 1315 may be performed according to the methods described herein. In some examples, aspects of the operations of 1315 may be as described with reference to Figures 4 to 7 The described instructions are executed by the component.

[0185] At 1320, the device may further base the second indication on the self-interference condition at the first device for at least the set of time periods. 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 4 to 7 The described instructions are executed by the component.

[0186] At 1325, the device may indicate that the self-interference condition at the first device includes interference between uplink transmissions on the first frequency band and downlink transmissions on the second frequency band for at least the set of time periods, and wherein the second indication indicates cancellation of uplink transmissions on the first frequency band for at least the set of time periods. The operations of 1325 may be performed according to the methods described herein. In some examples, aspects of the operations of 1325 may be as described with reference to Figures 4 to 7 The described instructions are executed by the component.

[0187] At 1330, the device may receive a grant to schedule downlink transmission on the second frequency band for at least the set of time periods based on the second indication. The operations of 1330 may be performed according to the methods described herein. In some examples, aspects of the operations of 1330 may be as described with reference to Figures 4 to 7 The described instructions are executed by the component.

[0188] At 1335, the device may communicate with the base station during the time interval based on the first indication and the second indication. The operations of 1335 may be performed according to the methods described herein. In some examples, aspects of the operations of 1335 may be as described with reference to Figures 4 to 7 The described communication components are implemented.

[0189] Figure 14 1400 according to various aspects of the present disclosure. The operations of the method 1400 may be implemented by the base station 105 or its components as described herein. For example, the operations of the method 1400 may be implemented by the base station 105 or its components as described herein. Figures 8 to 11 In some examples, a base station may execute an instruction set to control functional elements of the base station to perform the following functions. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the following functions.

[0190] At 1405, the base station may transmit a first indication to the first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of the time interval. 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 with reference to Figures 8 to 11 Describes the instructions the manager should perform.

[0191] At 1410, the base station transmits a second indication for a set of time periods in the set of time periods to the first device, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a communication direction mismatch for at least the set of time periods between the first indication and a third indication, the third indication indicating a communication direction for each time period in the set of time periods for the time interval. The operations of 1410 may be performed according to the methods described herein. In some examples, aspects of the operations of 1410 may be performed as described with reference to Figures 8 to 11 The described instructions manager to perform.

[0192] At 1415, the base station may communicate with the first device during the time interval based on the first indication and the second 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 8 to 11 The described communication manager is executed.

[0193] Figure 151 is a flow chart illustrating a method 1500 for supporting indication of communication cancellation based on a communication direction indication according to aspects of the present disclosure. The operations of the method 1500 may be implemented by the base station 105 or components thereof as described herein. For example, the operations of the method 1500 may be implemented by the base station 105 or components thereof as described herein. Figures 8 to 11 In some examples, a base station may execute an instruction set to control functional elements of the base station to perform the following functions. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the following functions.

[0194] At 1505, the base station may transmit a first indication to the first device, wherein the first indication indicates, for the first device, a communication direction for each time period in a set of time periods of the time interval. 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 with reference to Figures 8 to 11 The described instructions manager to perform.

[0195] At 1510, the base station transmits a second indication for a set of time periods in the set of time periods to the first device, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based on a communication direction mismatch between the first indication and a third indication for at least the set of time periods, the third indication indicating a communication direction for each time period in the set of time periods for the time interval. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be performed as described with reference to Figures 8 to 11 The described instructions manager to perform.

[0196] At 1515, the base station may associate the first indication with the first frequency band of the first device, and wherein the third indication is associated with the second frequency band of the first device. 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 8 to 11 The described instructions manager to perform.

[0197] At 1520, the base station may further base the second indication on the self-interference condition at the first device for at least the set of time periods. The operations of 1520 may be performed according to the methods described herein. In some examples, aspects of the operations of 1520 may be as described with reference to Figures 8 to 11 The described instructions manager to perform.

[0198] At 1525, the base station may indicate that the self-interference condition at the first device includes interference between uplink transmissions on the first frequency band and downlink transmissions on the second frequency band for at least the set of time periods, and wherein the second indication indicates cancellation of uplink transmissions on the first frequency band for at least the set of time periods. 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 8 to 11 The described instructions manager to perform.

[0199] At 1530, the base station may transmit, to the first device, a grant to schedule downlink transmission on the second frequency band for at least the set of time periods based on the second indication. 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 8 to 11 The described instructions manager to perform.

[0200] At 1535, the base station may communicate with the first device during the time interval based on the first indication and the second indication. The operations of 1535 may be performed according to the methods described herein. In some examples, aspects of the operations of 1535 may be as described with reference to Figures 8 to 11 The described communication manager is executed.

[0201] It should be noted that the methods described herein describe possible implementations, and that the operations and steps may be rearranged or otherwise modified and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0202] The following provides an overview of various aspects of the disclosure:

[0203] Aspect 1: A method for wireless communication at a first device, comprising: receiving a first indication associated with the first device, wherein the first indication indicates, for the first device, a communication direction for each of a plurality of time periods in a time interval; receiving a second indication for a set of time periods in the plurality of time periods, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is based at least in part on a mismatch in communication direction between the first indication and a third indication for at least the set of time periods, the third indication indicating a communication direction for each of the plurality of time periods in the time interval; and communicating with a base station during the time interval based at least in part on the first indication and the second indication.

[0204] Aspect 2: The method of aspect 1, wherein the third indication is associated with the second device.

[0205] Aspect 3: The method of aspect 2, wherein the second indication is further based at least in part on beam switching associated with the second device for the set of time periods.

[0206] Aspect 4: The method according to any one of aspects 1 to 3, wherein the first indication is associated with a first frequency band of the first device, and the third indication is associated with a second frequency band of the first device.

[0207] Aspect 5: The method of aspect 4, wherein the second indication is further based at least in part on a self-interference condition at the first device for at least the set of time periods.

[0208] Aspect 6: A method as in Aspect 5, wherein the self-interference condition at the first device includes interference between uplink transmissions on the first frequency band and downlink transmissions on the second frequency band for at least the time period set, and the second indication indicates cancellation of uplink transmissions on the first frequency band for at least the time period set.

[0209] Aspect 7: The method of aspect 6, further comprising: receiving a grant to schedule downlink transmission on the second frequency band for at least the set of time periods based at least in part on the second indication.

[0210] Aspect 8: The method according to any one of aspects 1 to 7, wherein the plurality of time periods comprises a plurality of symbols, and the time interval comprises a time slot.

[0211] Aspect 9: The method according to any one of aspects 1 to 8, wherein the communication direction for the first device includes an uplink direction, a downlink direction, a flexible symbol, or a gap symbol.

[0212] Aspect 10: The method according to any one of aspects 1 to 9, wherein the communication direction mismatch comprises an uplink direction indicated by the first indication for the set of time periods and a downlink direction indicated by the third indication for the set of time periods.

[0213] Aspect 11: A method for wireless communication at a base station, comprising: transmitting a first indication to a first device, wherein the first indication indicates, for the first device, a communication direction for each of a plurality of time periods in a time interval; transmitting a second indication for a set of time periods in the plurality of time periods to the first device, wherein the second indication indicates cancellation of communication at the first device during the set of time periods, and wherein the second indication is at least partially based on a mismatch in communication direction for at least the set of time periods between the first indication and a third indication, the third indication indicating a communication direction for each of the plurality of time periods in the time interval; and communicating with the first device during the time interval based at least in part on the first indication and the second indication.

[0214] Aspect 12: The method of Aspect 11, wherein the third indication is associated with the second device.

[0215] Aspect 13: The method of Aspect 12 further includes: receiving a request for beam change from the second device; and granting the request for beam change to the second device, wherein transmitting the second indication to the first device is at least partially based on granting the request for beam change to the second device.

[0216] Aspect 14: The method according to any one of aspects 11 to 13, wherein the first indication is associated with a first frequency band of the first device, and the third indication is associated with a second frequency band of the first device.

[0217] Aspect 15: The method of aspect 14, wherein the second indication is further based at least in part on a self-interference condition at the first device for at least the set of time periods.

[0218] Aspect 16: A method as in Aspect 15, wherein the self-interference condition at the first device includes interference between uplink transmissions on the first frequency band and downlink transmissions on the second frequency band for at least the time period set, and the second indication indicates cancellation of uplink transmissions on the first frequency band for at least the time period set.

[0219] Aspect 17: The method of aspect 16, further comprising: transmitting, to the first device, a grant to schedule downlink transmission on the second frequency band for at least the set of time periods based at least in part on the second indication.

[0220] Aspect 18: The method of any one of aspects 11 to 17, wherein the plurality of time periods comprises a plurality of symbols, and the time interval comprises a time slot.

[0221] Aspect 19: The method of any one of aspects 11 to 18, wherein the communication direction for the first device includes an uplink direction, a downlink direction, a flexible symbol, or a gap symbol.

[0222] Aspect 20: The method according to any one of aspects 11 to 19, wherein the communication direction mismatch comprises an uplink direction indicated by the first indication for the set of time periods and a downlink direction indicated by the third indication for the set of time periods.

[0223] Aspect 21: An apparatus for wireless communication at a first device, 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 10.

[0224] Aspect 22: An apparatus for wireless communication at a first device, comprising at least one means for performing the method of any one of aspects 1 to 10.

[0225] Aspect 23: A non-transitory computer-readable medium storing code for wireless communication at a first device, the code comprising instructions executable by a processor to perform the method of any one of aspects 1 to 10.

[0226] Aspect 24: An apparatus for performing wireless communication at a base station, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as described in any one of Aspects 11 to 20.

[0227] Aspect 25: An apparatus for wireless communication at a base station, comprising at least one device for performing the method of any one of Aspects 11 to 20.

[0228] Aspect 26: 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 11 to 20.

[0229] 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 throughout 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 techniques described may be applicable 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.

[0230] The information and signals described herein may be represented using any of a variety of different technologies and techniques. 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.

[0231] 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. A 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).

[0232] 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, each function may be stored on or transmitted by a computer-readable medium as one or more instructions or code. Other examples and implementations fall within the scope of this 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.

[0233] Computer-readable media include both non-transient computer storage media and communication media, which include any media that facilitates a computer program to be transferred from one place to another. Non-transient storage media can be any available medium that can be accessed by a general or special-purpose computer. As an example and not limitation, non-transient computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other non-transient medium that can be used to carry or store the desired program code means of an instruction or data structure form and can be accessed by a general or special-purpose computer, or a general or special-purpose processor. Similarly, any connection is also properly referred to as a computer-readable medium. For example, if software is transmitted from a website, server or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwaves, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwaves are included in the definition of computer-readable media. 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.

[0234] As used herein (including in the claims), "or" used in a list of items (e.g., a list of items followed by 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). Likewise, as used herein, the phrase "based on" should not be read as referencing a closed set of conditions. For example, an example step described as "based on condition A" could be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be read in the same manner as the phrase "based at least in part on."

[0235] In the accompanying drawings, similar components or features may have the same reference number. In addition, components of the same type may be distinguished by following the reference number with a dash and a second reference number that distinguishes between the similar components. If only the first reference number is used in the specification, the description applies to any of the similar components having the same first reference number, regardless of the second reference number or other subsequent reference numbers.

[0236] The description set forth herein in conjunction with the accompanying drawings describes example configurations and does not represent all examples that can be implemented or fall within the scope of the claims. The term "example" as used herein means "serving 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 can 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.

[0237] 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 readily apparent to those of ordinary skill in the art, and the general 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 is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a first device, comprising: receiving a first indication associated with the first device, wherein the first indication indicates, for the first device, a communication direction for each of a plurality of time periods of a time interval; receiving a second indication for a set of time periods in the plurality of time periods, wherein the second indication indicates cancellation of communications on a first frequency band and / or a second frequency band of the first device during the set of time periods, and wherein the second indication is based at least in part on a communication direction mismatch between the first indication and a third indication for at least the set of time periods, the third indication indicating a communication direction for each of the plurality of time periods of the time interval, wherein the first indication is associated with the first frequency band of the first device, and wherein the third indication is associated with the second frequency band of the first device; and Communicating with a network node during the time interval is performed based at least in part on the first indication and the second indication. The method of claim 1 , wherein the third indication is associated with a second device. 3 . The method of claim 2 , wherein the second indication is further based at least in part on beam switching associated with the second device for the set of time periods. 4 . The method of claim 1 , wherein the second indication is further based at least in part on a self-interference condition at the first device for at least the set of time periods.

5. A method as claimed in claim 4, wherein the self-interference condition at the first device includes interference between uplink transmissions on the first frequency band and downlink transmissions on the second frequency band for at least the set of time periods, and wherein the second indication indicates cancellation of the uplink transmission on the first frequency band for at least the set of time periods.

6. The method of claim 5, further comprising: A grant is received to schedule downlink transmission on the second frequency band for at least the set of time periods based at least in part on the second indication.

7. The method of claim 1, wherein the plurality of time periods comprises a plurality of symbols, and wherein the time interval comprises a time slot.

8. The method of claim 1, wherein the communication direction for the first device comprises an uplink direction, a downlink direction, a flexible symbol, or a gap symbol.

9. The method of claim 1, wherein the communication direction mismatch comprises an uplink direction indicated by the first indication for the set of time periods and a downlink direction indicated by a third indication for the set of time periods.

10. A method for wireless communication at a network node, comprising: transmitting a first indication to a first device, wherein the first indication indicates, for the first device, a communication direction for each of a plurality of time periods of a time interval; transmitting a second indication for a set of time periods in the plurality of time periods to the first device, wherein the second indication indicates cancellation of communications on a first frequency band and / or a second frequency band of the first device during the set of time periods, and wherein the second indication is based at least in part on a communication direction mismatch between the first indication and a third indication for at least the set of time periods, the third indication indicating a communication direction for each of the plurality of time periods of the time interval, wherein the first indication is associated with the first frequency band of the first device, and wherein the third indication is associated with the second frequency band of the first device; and Communicating with the first device during the time interval is performed based at least in part on the first indication and the second indication. The method of claim 10 , wherein the third indication is associated with a second device.

12. The method of claim 11, further comprising: receiving a request for beam changing from the second device; as well as The request for the beam changing is granted for the second device, wherein transmitting the second indication to the first device is based at least in part on granting the request for the beam changing for the second device.

13. The method of claim 10, wherein the second indication is further based at least in part on a self-interference condition at the first device for at least the set of time periods.

14. A method as claimed in claim 13, wherein the self-interference condition at the first device includes interference between uplink transmissions on the first frequency band and downlink transmissions on the second frequency band for at least the set of time periods, and wherein the second indication indicates cancellation of the uplink transmission on the first frequency band for at least the set of time periods.

15. The method of claim 14, further comprising: A grant to schedule downlink transmission on the second frequency band for at least the set of time periods is transmitted to the first device based at least in part on the second indication.

16. The method of claim 10, wherein the plurality of time periods comprises a plurality of symbols, and wherein the time interval comprises a time slot.

17. The method of claim 10, wherein the communication direction for the first device comprises an uplink direction, a downlink direction, a flexible symbol, or a gap symbol.

18. The method of claim 10, wherein the communication direction mismatch comprises an uplink direction indicated by the first indication for the set of time periods and a downlink direction indicated by a third indication for the set of time periods.

19. An apparatus for wireless communication at a first device, comprising: means for receiving a first indication associated with the first device, wherein the first indication indicates, for the first device, a communication direction for each of a plurality of time periods of a time interval; means for receiving a second indication for a set of time periods in the plurality of time periods, wherein the second indication indicates cancellation of communications on a first frequency band and / or a second frequency band of the first device during the set of time periods, and wherein the second indication is based at least in part on a communication direction mismatch between the first indication and a third indication for at least the set of time periods, the third indication indicating a communication direction for each of the plurality of time periods of the time interval, wherein the first indication is associated with the first frequency band of the first device, and wherein the third indication is associated with the second frequency band of the first device; as well as Means for communicating with a network node during the time interval based at least in part on the first indication and the second indication.

20. The apparatus of claim 19, wherein the third indication is associated with a second device.

21. The apparatus of claim 20, wherein the second indication is further based at least in part on beam switching associated with the second device for the set of time periods.

22. The apparatus of claim 19, wherein the second indication is further based at least in part on a self-interference condition at the first device for at least the set of time periods.

23. An apparatus as described in claim 22, wherein the self-interference condition at the first device includes interference between uplink transmissions on the first frequency band and downlink transmissions on the second frequency band for at least the set of time periods, and wherein the second indication indicates cancellation of the uplink transmission on the first frequency band for at least the set of time periods.

24. The apparatus of claim 19, wherein the plurality of time periods comprises a plurality of symbols, and wherein the time interval comprises a time slot.

25. The apparatus of claim 19, wherein the communication direction for the first device comprises an uplink direction, a downlink direction, a flexible symbol, or a gap symbol.

26. The apparatus of claim 19, wherein the communication direction mismatch comprises an uplink direction indicated by the first indication for the set of time periods and a downlink direction indicated by a third indication for the set of time periods.

27. An apparatus for performing wireless communication at a network node, comprising: means for transmitting a first indication to a first device, wherein the first indication indicates, for the first device, a communication direction for each of a plurality of time periods of a time interval; means for transmitting, to the first device, a second indication for a set of time periods in the plurality of time periods, wherein the second indication indicates a cancellation of communications on a first frequency band and / or a second frequency band of the first device during the set of time periods, and wherein the second indication is based at least in part on a communication direction mismatch between the first indication and a third indication for at least the set of time periods, the third indication indicating a communication direction for each of the plurality of time periods of the time interval, wherein the first indication is associated with the first frequency band of the first device, and wherein the third indication is associated with the second frequency band of the first device; as well as Means for communicating with the first device during the time interval based at least in part on the first indication and the second indication.

28. The apparatus of claim 27, wherein the third indication is associated with a second device.

29. The apparatus of claim 28, further comprising: means for receiving a request for beam changing from the second device; as well as Means for granting the request for the beam changing for the second device, wherein transmitting the second indication to the first device is based at least in part on granting the request for the beam changing for the second device.

30. The apparatus of claim 27, wherein the second indication is further based at least in part on a self-interference condition at the first device for at least the set of time periods.

31. An apparatus as described in claim 30, wherein the self-interference condition at the first device includes interference between uplink transmissions on the first frequency band and downlink transmissions on the second frequency band for at least the set of time periods, and wherein the second indication indicates cancellation of the uplink transmission on the first frequency band for at least the set of time periods.

32. The apparatus of claim 31 , further comprising: means for transmitting, based at least in part on the second indication, to the first device a grant to schedule downlink transmission on the second frequency band for at least the set of time periods.

33. The apparatus of claim 27, wherein the plurality of time periods comprises a plurality of symbols, and wherein the time interval comprises a time slot.

34. The apparatus of claim 27, wherein the communication direction for the first device comprises an uplink direction, a downlink direction, a flexible symbol, or a gap symbol.

35. The apparatus of claim 27, wherein the communication direction mismatch comprises an uplink direction indicated by the first indication for the set of time periods and a downlink direction indicated by a third indication for the set of time periods.

36. An apparatus for wireless communication at a first device, comprising: A computer-readable medium comprising a program code, which, when executed, causes a computer of the first device to perform the method according to any one of claims 1 to 9.

37. An apparatus for wireless communication at a network node, comprising: A computer-readable medium comprising a program code which, when executed, causes a computer of the network node to perform the method according to any one of claims 10 to 18.

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