Correlation of shared channel reference signal bundling with preemption indication

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) can receive a preemption indication indicating that resources of at least one of one or more shared channel communications of a shared channel are to be preempted, where the one or more shared channel communications are to be time domain reference signal (RS) bundled based at least in part on an RS associated with the shared channel. The UE can selectively perform the time domain RS bundling of the one or more shared channel communications based at least in part on the preemption indication. Numerous other aspects are provided.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This Patent Application claims benefit of Greek Patent Application No. 20200100107, entitled “RELATION OF PHYSICAL DOWNLINK SHARED CHANNEL DEMODULATION REFERENCE SIGNAL BUNDLING TO A DOWNLINK PREEMPTION INDICATION,” filed February 27, 2020, and assigned to the assignee hereof. The disclosure of this prior application is considered part of and is hereby incorporated by reference into this Patent Application.

[0003] DISCLOSURE

[0004] Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for relation of shared channel reference signal (RS) bundling to preemption indication.

[0005] BACKGROUND

[0006] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems can employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3 GPP).

[0007] A wireless communication network can include a number of base stations (BSs) that can support communication for a number of user equipment (UEs). A user equipment (UE) can communicate with a base station (BS) via the downlink and uplink. The downlink (or forward link) refers to the communication link from the BS to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS can be referred to as a Node B, a gNB, an access point (AP), a radio head, a transmit receive point (TRP), a new radio (NR) BS, a 5G Node B, and / or the like.

[0008] The above multiple access technologies have been adopted in various telecommunication standards to provide common protocols facilitating communication between wireless devices from different technologies. New Radio (NR), which can also be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (3GPP). NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using OFDM with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL), using CP- OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple input multiple output (MIMO) antenna technology, and carrier aggregation. However, as the demand for mobile broadband access continues to increase, there exists a need for further improvements in LTE and NR technologies. Preferably, these improvements should be applicable to other multiple access technologies and the telecommunication standards that employ these technologies.

[0009] SUMMARY

[0010] In some aspects, a method of wireless communication, performed by a UE, can include receiving a preemption indication that indicates resources of at least one of one or more shared channel communications of a shared channel are to be preempted, wherein the one or more shared channel communications are to be time domain reference signal (RS) bundled based at least in part on an RS associated with the shared channel; and selectively performing time domain RS bundling of the one or more shared channel communications based at least in part on the preemption indication.

[0011] In some aspects, a UE for wireless communication can include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors can be configured to receive a preemption indication that indicates resources of at least one of one or more shared channel communications of a shared channel are to be preempted, wherein the one or more shared channel communications are to be time domain reference signal (RS) bundled based at least in part on an RS associated with the shared channel; and selectively perform time domain RS bundling of the one or more shared channel communications based at least in part on the preemption indication.

[0012] In some aspects, a non-transitory computer-readable medium can store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, can cause the one or more processors to receive a preemption indication indicating that resources of at least one of one or more shared channel communications of a shared channel are to be preempted, wherein the one or more shared channel communications are to be time domain reference signal (RS) bundled based at least in part on an RS associated with the shared channel; and selectively perform time domain RS bundling of the one or more shared channel communications based at least in part on the preemption indication.

[0013] In some aspects, an apparatus for wireless communication can include means for receiving a preemption indication indicating that resources of at least one of one or more shared channel communications of a shared channel are to be preempted, wherein the one or more shared channel communications are to be time domain reference signal (RS) bundled based at least in part on an RS associated with the shared channel; and means for selectively performing time domain RS bundling of the one or more shared channel communications based at least in part on the preemption indication.

[0014] Aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, wireless communication device, and / or processing system as substantially described herein with reference to and as illustrated by the accompanying drawings and specification.

[0015] The foregoing has outlined rather broadly the features and technical advantages of examples according to the disclosure in order that the detailed description that follows can be better understood. Additional features and advantages will be described hereinafter. The disclosed conception and specific examples can be readily utilized as bases for the designing of other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions not only follow from the scope of the claims but are intended to support that scope. The characteristics of the concepts disclosed herein, both their organization and their method of operation, together with associated advantages will be better understood from the following description when considered in connection with the accompanying drawings. Each of the figures is provided for the purpose of illustration and description, and is not intended as a definition of the limits of the claims. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order that the above-recited features of the present disclosure can be understood in detail, a more particular description will be rendered by reference to certain aspects thereof, which are illustrated in the appended drawings. For example, it will be readily understood that the aspects described herein are merely exemplary of the principles of the present disclosure, and that various modifications can be implemented within the scope of the present disclosure. Thus, the present disclosure is not intended to be limited to the aspects described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Like reference numerals can refer to like elements throughout the various figures and sections of this description.

[0018] Figure 1 is a block diagram conceptually illustrating an example of a wireless communication network, in accordance with various aspects of the present disclosure.

[0019] Figure 2 is a block diagram conceptually illustrating an example of a base station in communication with a UE in a wireless communication network, in accordance with various aspects of the present disclosure.

[0020] Figure 3 is a diagram illustrating an example of a downlink (DL) centric slot, in accordance with various aspects of the present disclosure.

[0021] Figure 4 is a diagram illustrating an example of an uplink (UL) centric slot, in accordance with various aspects of the present disclosure.

[0022] Figures 5A-5F is a diagram illustrating an example of a related association of a same physical downlink shared channel (PDSCH) demodulation reference signal (DMRS) bundling and downlink preemption indication, in accordance with various aspects of the present disclosure.

[0023] Figure 6 is a diagram illustrating an example process performed, for example, by a user equipment, in accordance with various aspects of the present disclosure.

[0024] DETAILED DESCRIPTION

[0025] Various aspects of the disclosure are described in further detail below. The aspects of the disclosure may, however, be implemented in many different forms and should not be construed as limited to the specific aspects given throughout this disclosure. Rather, these aspects are provided as illustrative examples of implementing the disclosure and to convey the scope of the disclosure to those skilled in the art. With the teachings of the present disclosure provided, one of ordinary skill in the art will be able to contemplate changes in form and detail without departing from the scope of the disclosure. Based on the teachings herein, one skilled in the art should recognize that an aspect of the disclosure can be implemented independently of any other aspects of the disclosure and that an aspect can be implemented both in conjunction with other aspects and in isolation from other aspects of the disclosure. For example, an apparatus can be implemented or a method can be practiced using any number of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover an apparatus that is implemented or a method that is practiced using, as a supplement to and not as a substitute for, other additional aspects of embodiments of the present disclosure. It should be understood that any of the aspects of the disclosure disclosed herein can be implemented by one or more elements of a claim.

[0026] Several aspects of telecommunication systems will now be presented with reference to various apparatus and methods. These apparatus and methods will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or combinations thereof. Whether such elements are implemented as hardware or software depends on the specific application and design constraints imposed on the overall system.

[0027] It should be noted that while aspects can be described herein using terminology commonly associated with a 5G or NR radio access technology (RAT), aspects of the present disclosure can be applied to other RATs, such as a 3G RAT, a 4G RAT, and / or a RAT subsequent to 5G (e.g., 6G).

[0028] Figure 1 FIG. 1 is a diagram illustrating a wireless network 100 in which aspects of the present disclosure can be practiced. The wireless network 100 can be an LTE network or some other wireless network, such as a 5G or NR network. The wireless network 100 can include a number of BSs 110 (shown as BS 110a, BS 110b, BS 110c, and BS 1 lOd) and other network entities. A BS is an entity that communicates with user equipment (UEs) and can also be referred to as a base station, a NR BS, a NodeB, a gNB, a 5G nodeB (NB), an access point, a transmit receive point (TRP), and / or the like. Each BS can provide communication coverage for a particular geographic area. In 3GPP, the term “cell” can refer to a coverage area of a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[0029] BSs can be referred to as gNBs, NR BSs, and / or the like. A BS can be located within or outside the geographical area of a cell served by the BS. A BS can communicate with a user equipment (UE) on a downlink (e.g., for transmissions from a BS to a UE) and / or an uplink (e.g., for transmissions from a UE to a BS). In a TDD system, a BS and a UE can communicate with each other over a shared channel, and the communication can be on a downlink or an uplink depending on the direction of the communication at the time of the communication. In a FDD system, a BS and a UE can communicate with each other over separate downlink and uplink channels. The BSs 110a, 110b, and 110c in the system 100 can also be referred to as BSs, BSs 110, gNBs, NR BSs, and / or the like. Figure 1 In the example shown in FIG. 1, the BS 110a can be a macro BS for a macro cell 102a, the BS 110b can be a pico BS for a pico cell 102b, and the BS 110c can be a femto BS for a femto cell 102c. A BS can support one or multiple (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” can be used interchangeably herein.

[0030] In some aspects, the cellular cells can not necessarily be stationary, and the geographic area of a cell can move based on the location of a mobile BS. In some aspects, BSs can be interconnected to one another and / or to one or more other BSs or network nodes (not shown) in the wireless network 100 using any suitable transmission network, such as a direct physical connection, virtual network, or the like.

[0031] Wireless network 100 can also include relay stations. A relay station is an entity that can receive a transmission of data from an upstream station (e.g., a BS or a UE) and send a transmission of the data to a downstream station (e.g., a UE or a BS). A relay station can also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown, a relay station 1 lOd can communicate with macro BS 110a and a UE 120d in order to facilitate communications between the BS 110a and UE 120d. A relay station can also be referred to as a relay BS, a relay base station, a relay, or the like.

[0032] Wireless network 100 can be a heterogeneous network that includes BSs of different types, e.g., macro BSs, pico BSs, femto BSs, relay BSs, or the like. These different types of BSs can have different transmit power levels, different coverage areas, and different impacts on interference. For example, macro BSs can have a high transmit power level (e.g., 5 to 40 Watts) whereas pico BSs, femto BSs, and relay BSs can have relatively lower transmit power levels (e.g., 0.1 to 2 Watts).

[0033] A network controller 130 can couple to a set of BSs and can provide coordination and control for these BSs. Network controller 130 can be in communication with the BSs via a backhaul. The BSs can also communicate with one another, e.g., directly or indirectly via a wireless or wireline backhaul.

[0034] The UEs 120 (e.g., 120a, 120b, 120c) can be dispersed throughout the wireless network 100, and each UE can be stationary or mobile. A UE can also be referred to as an access terminal, a terminal, a mobile station, a subscriber unit, a station, etc. A UE can be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biometric sensor / device, a wearable device such as a smart watch, smart clothing, smart glasses, a smart wrist band, a smart jewelry (e.g., a smart ring, a smart bracelet), an entertainment device (e.g., a music or video device, or a satellite radio), a vehicular component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device that is configured to communicate via a wireless or wired medium.

[0035] Some UEs can be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., that can communicate with a base station, another device (e.g., remote device), or some other entity. A wireless node can provide, for example, connectivity for or to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs can be considered Internet-of-Things (IoT) devices, and / or can be implemented as NB-IoT (narrowband

[0036] In general, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a particular radio access technology (RAT) and can operate on one or more frequencies. A RAT can also be referred to as a radio technology, an air interface, etc. A frequency can also be referred to as a carrier, a frequency channel, etc. Each frequency can support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0037] In some respects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary). For example, UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In this scenario, UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0038] As indicated above, Figure 1 This is provided as an example. Other examples may differ from the one provided. Figure 1 The example described.

[0039] Figure 2 A block diagram of a design 200 for base station 110 and UE 120 is shown. Base station 110 and UE 120 can be Figure 1 One of the base stations and one of the UEs. Base station 110 may be equipped with T antennas 234a to 234t, and UE 120 may be equipped with R antennas 252a to 252r, wherein generally T≥1 and R≥1.

[0040] At base station 110, a transmit processor 220 can receive data from a data source 212 for one or more UEs, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQIs) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. Transmit processor 220 can also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper layer signaling, etc.) and provide overhead symbols and control symbols. Transmit processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS)). A transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and / or the reference symbols, if applicable, and can provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 can process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. T downlink signals from modulators 232a through 232t can be transmitted via T antennas 234a through 234t, respectively. According to various aspects described in more detail below, synchronization signals can be generated with location encoding to convey additional information.

[0041] At the UE 120, the antennas 252a through 252r can receive the downlink signals from the base station 110 and / or other base stations and can provide received signals to the demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 can condition (e.g., filter, amplify, downconvert, and digitize) a received signal to obtain input samples. Each demodulator 254 can further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 256 can obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 258 can process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The channel processor can determine reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), channel quality indicator (CQI), etc. In some aspects, one or more components of UE 120 can be included in a housing.

[0042] On the uplink, at the UE 120, a transmit processor 264 can receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.) from the controller / processor 280. Transmit processor 264 can also generate reference symbols for one or more reference signals. The symbols from transmit processor 264 can be precoded by a TX MIMO processor 266 if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 110. At the base station 110, the uplink signals from UE 120 and other UEs can be received by the antennas 234, processed by demodulators 232, detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by UE 120. The receive processor 238 can provide the decoded data to a data sink 239 and the decoded control information to a controller / processor 240. The base station 110 can include a communication unit 244 and communicate to the network controller 130 via the communication unit 244. The network controller 130 can include a communication unit 294, a controller / processor 290, and a memory 292.

[0043] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other component may perform one or more techniques associated with shared channel reference signal clustering and preemption indication, as described in more detail elsewhere herein. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component that can execute or direct, for example Figure 6 The operation of process 600 and / or other processes as described herein. Memory 242 and 282 may store data and program code for base station 110 and UE 120, respectively. Thus, memory 282 of the UE may include a non-transient computer-readable medium storing one or more instructions for wireless communication, wherein the one or more instructions, when executed by one or more processors of UE 120 (e.g., processor 258 and / or controller / processor 280), cause the one or more processors to perform references. Figures 5A-5F and Figure 6 One or more instructions describing the method in more detail.

[0044] In some aspects, memory 242 and / or memory 282 may include a non-transient computer-readable medium storing one or more instructions for wireless communication. For example, these one or more instructions may be executable or instruct, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly executed, or executed after compilation, translation, interpretation, etc.). Figure 6 The operation of process 600 and / or other processes as described herein. In some aspects, the execution of instructions may include run instructions, conversion instructions, compilation instructions, interpretation instructions, etc. Scheduler 246 may schedule the UE for data transmission on the downlink and / or uplink.

[0045] In some aspects, UE 120 may include: means (e.g., antenna 252, DEMOD 254, MIMO detector 256, receiver processor 258, controller / processor 280, memory 282, etc.) for receiving a preemption indication that resources of at least one of one or more shared-channel communications (e.g., one or more PDSCH communications) are to be preempted, wherein the one or more shared-channel communications are to be time-domain RS-bundled (e.g., time-domain DMRS-bundled) at least in part based on RS associated with the shared channel (e.g., DMRS associated with the PDSCH); means (e.g., DEMOD 254, MIMO detector 256, receiver processor 258, controller / processor 280, memory 282, etc.) for selectively performing time-domain RS-bundling of the one or more shared-channel communications at least in part based on the preemption indication; and so on. In some aspects, such means may include combinations of Figure 2One or more components of the UE 120 described, such as the controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, and / or the like.

[0046] As indicated above, Figure 2 are provided by way of example. Other examples can differ from those described. Figure 2 without departing from the scope of the disclosure.

[0047] Figure 3 is a diagram 300 illustrating an example of a DL-centric slot or wireless communication structure that can be used within various aspects of the disclosure. The DL-centric slot can include a control portion 302. The control portion 302 can occur at the initial or beginning portion of the DL-centric slot. The control portion 302 can include various scheduling and / or control information corresponding to various portions of the DL-centric slot. In some configurations, the control portion 302 can be a physical DL control channel (PDCCH), as indicated in Figure 3 some aspects, the control portion 302 can include legacy PDCCH information, shortened PDCCH (sPDCCH) information, a control format indicator (CFI) value (e.g., carried on a physical control format indicator channel (PCFICH)), one or more grants (e.g., downlink grants, uplink grants, etc.), and / or the like.

[0048] The DL-centric slot can also include a DL data portion 304. The DL data portion 304 can sometimes be referred to as the payload of the DL-centric slot. The DL data portion 304 can include communication resources utilized to communicate DL data from a scheduling entity (e.g., UE or BS) to a subordinate or scheduled entity (e.g., UE). In some configurations, the DL data portion 304 can be a physical DL shared channel (PDSCH).

[0049] The DL-centric slot can also include an UL short burst portion 306. The UL short burst portion 306 can sometimes be referred to as an UL burst, an UL burst portion, a common UL burst, a short burst, an UL short burst, a common UL short burst, a common UL short burst portion, and / or various other suitable terminology. In some aspects, the UL short burst portion 306 can include one or more reference signals. Additionally, or alternatively, the UL short burst portion 306 can include feedback information corresponding to various other portions of the DL-centric slot. For example, the UL short burst portion 306 can include feedback information corresponding to the control portion 302 and / or the data portion 304. Non-limiting examples of information that can be included in the UL short burst portion 306 include ACK signals (e.g., PUCCH ACK, PUSCH ACK, immediate ACK), NACK signals (e.g., PUCCH NACK, PUSCH NACK, immediate NACK), scheduling requests (SRs), buffer status reports (BSRs), HARQ indicators, channel state indications (CSIs), channel quality indicators (CQIs), sounding reference signals (SRSs), demodulation reference signals (DMRSs), PUSCH data, and / or various other suitable types of information. The UL short burst portion 306 can include additional or alternative information, such as information related to random access channel (RACH) procedures, scheduling requests, and various other suitable types of information.

[0050] As Figure 3 illustrated in FIG. 3B, an end of the DL data portion 304 can be separated in time from a beginning of the UL short burst portion 306. This separation in time can sometimes be referred to as a gap, a guard period, a guard interval, and / or various other suitable terminology. This separation provides time for a switch-over from DL communication (e.g., reception operations by a subordinate entity (e.g., a UE)) to UL communication (e.g., transmission by a subordinate entity (e.g., a UE)). The foregoing is one example of a DL-centric wireless communication structure, and alternative structures with similar features can exist without departing from aspects described herein.

[0051] As indicated above, Figure 3 is provided as an example. Other examples can differ from what is described with respect to Figure 3 without departing from aspects described herein.

[0052] Figure 4 is a diagram 400 illustrating an example of an UL-centric slot or wireless communication structure that can be used in aspects of the disclosure. The UL-centric slot can include a control portion 402. The control portion 402 can be present in an initial or beginning portion of the UL-centric slot. Figure 4 The control portion 402 in the UL-centric slot can be similar to the control portion 302 described above with reference to FIG. 3A. Figure 3The described control portion 302. The UL-centric slot can also include a UL long burst portion 404. The UL long burst portion 404 can sometimes be referred to as the payload of the UL-centric slot. The UL long burst portion 404 can refer to the communication resources used to communicate UL data from a subordinate or scheduled entity (e.g., UE) to a scheduling entity (e.g., UE or BS). In some configurations, the control portion 402 can be a physical DL control channel (PDCCH).

[0053] As illustrated in Figure 4 , the end of the control portion 402 can be separated in time from the beginning of the UL long burst portion 404. This time separation can sometimes be referred to as a gap, guard period, guard interval, and / or various other suitable terms. This separation provides time for switching from DL communication (e.g., reception operations by the scheduling entity) to UL communication (e.g., transmission by the scheduling entity).

[0054] The UL-centric slot can also include a UL short burst portion 406. Figure 4 The UL short burst portion 406 in Figure 3 may be similar to the UL short burst portion 306 described above with reference to Figure 3 may include any information described above in connection with The foregoing is one example of a UL-centric wireless communication structure, and alternative structures having similar features can exist without necessarily deviating from aspects described herein.

[0055] In one example, a wireless communication structure, such as a frame, can include both UL-centric slots and DL-centric slots. In this example, the ratio of UL-centric slots to DL-centric slots in a frame can be dynamically adjusted based at least in part on the amount of UL data and DL data communicated. For example, if there is more UL data, the ratio of UL-centric slots to DL-centric slots can be increased. Conversely, if there is more DL data, the ratio of UL-centric slots to DL-centric slots can be decreased.

[0056] Figure 4 As indicated above, Figure 4 is provided by way of example. Other examples can differ from what is described in this regard.

[0057] Reference signal (RS) bundling in time domain (also referred to as time domain reference signal bundling) in NR systems enables reference signals across multiple slots to be used / bundled in association with data channels carried in a given one of the multiple slots, in other words, the multiple slots can be time domain reference signal bundled. As a particular example, performing time domain DMRS bundling for a group of PDSCH communications allows DMRS across the group of PDSCH communications to be bundled in association with receiving a given one of the PDSCH communications. Reference signal bundling in time domain can for example provide coverage enhancement, enable high mobility, and provide low DMRS overhead with peak throughput.

[0058] So-called “look-ahead” DMRS bundling allows signaling to a UE for which upcoming sets of slots the UE can assume data channels are bundled. For example, downlink control information (DCI) in a first slot can carry an indication that the next two upcoming slots are to be time domain DMRS bundled. In contrast, so-called “look-back” DMRS bundling allows signaling to a UE for which sets of previous slots (i.e., sets of slots already received at the UE) the UE can assume data channels are bundled. For example, a flip bit in DCI can carry a new bundle indicator (NBI). Here, in a first slot, the NBI can have a first value (e.g., 0). Similarly, in a second slot, the NBI can also have the first value, indicating that the second slot is to be bundled with the previous (first) slot. However, in a third slot, the NBI can have a second value (e.g., 1). Here, the NBI having a different value indicates that the third slot is not to be bundled with the previous (first and second) slots. In this example, upon receiving the third slot, the UE can perform time domain DMRS bundling for the first and second (i.e., previously received) slots. The NBI can be similarly used in subsequent slots to further indicate different bundling. In some cases of look-back bundling, the UE can be configured to bundle DMRS across PDSCH communications with a consecutive (e.g., increasing without gaps) downlink counter downlink assignment index (DAI) in addition to adjusting bundling on the NBI in the manner described above.

[0059] There are several UE complexity considerations related to DCI-based DMRS bundling. For example, in some cases, a UE can be expected to perform time-domain bundling only if the same port identifier is used in both a previous PDSCH and a new PDSCH to which time-domain DMRS bundling is to be performed. If a different port identifier is used, this can be used as an indication that no bundling is needed (e.g., since the PDSCHs would be different channels). As another example, a UE can be expected to perform time-domain bundling only if a previous PDSCH and a new PDSCH have the same type (e.g., Type A, Type B, etc.). Here, different types of PDSCHs can have different DMRS patterns, which can increase complexity at the UE when performing bundling. As another example, a UE can be expected to perform time-domain bundling only if a previous PDSCH and a new PDSCH have the same DMRS pattern with respect to the actual location of DMRS symbols within the PDSCH (e.g., to keep complexity at the UE relatively low). As another example, a UE can be expected to perform time-domain bundling only if the same DMRS type (e.g., Type 1, Type 2, etc.) is used between a previous PDSCH and a new PDSCH. Generally, if the applicable assumptions are not met, the UE can not be expected to time-domain bundle the DMRSs across PDSCH communications.

[0060] Further, in NR systems, preemption enables a first type of communication to be punctured or interrupted to allow a second type of communication (e.g., of higher priority) to be communicated. For example, preemption allows an enhanced mobile broadband (eMBB) communication to be punctured or interrupted to allow an ultra-reliable low-latency communication (URLLC) communication to be communicated. However, such preemption can result in a loss of phase coherence between transmission durations associated with the first communication, as the second communication has caused the transmission durations to be non-contiguous. For example, on the uplink, the URLLC communication can have a different transmit power than the eMBB communication, which can result in a loss of phase coherence. As another example, the URLLC communication can be scheduled in a different component carrier or bandwidth part, such that the UE must tune away from a radio frequency (RF) to communicate (e.g., receive or transmit) the URLLC communication and then tune back for the eMBB communication, which can result in a loss of phase coherence.

[0061] An indication-based pre-emption multiplexing approach can benefit both URLLC and eMBB UEs at the cost of an indicator overhead. In some cases, an indication of pre-emption, referred to herein as a pre-emption indication, can be a current indication of a pre-empted communication. For example, for a URLLC communication pre-empting an eMBB communication, a pre-emption indication (PI) can be provided in a DCI that is concurrent with (i.e., simultaneous with) the URLLC communication. Alternatively, in some cases, a pre-emption indication can be a post indication of a pre-empted communication and a pre-empting communication. For example, for a URLLC communication pre-empting an eMBB communication, a pre-emption indication can be provided in a DCI after both the URLLC communication and the eMBB communication (e.g., in the next slot). Alternatively, in some cases, a pre-emption indication can be a post indication of a pre-empted communication concurrent with a pre-empting communication. For example, for a URLLC communication pre-empting an eMBB communication, a pre-emption indication can be provided after the URLLC communication but within the same slot of the eMBB communication (e.g., in one or more symbols of the eMBB slot).

[0062] In some cases, when pre-emption is implemented, a particular DCI format (e.g., DCI format 2 1) is used to inform a UE of resources (e.g., one or more physical resource blocks and / or one or more symbols) where the UE can assume no transmission for the UE. As an example of pre-emption, a base station can schedule a first UE to receive an eMBB communication during a slot. In the middle of the slot, a URLLC packet for a second UE can arrive at the base station, and the base station can schedule and transmit the packet to the second UE in a subset of resources of the slot. Here, the base station will indicate to the first UE the subset of resources in the slot that are punctured (i.e., used to transmit the URLLC packet to the second UE) via a downlink pre-emption indication (e.g., in the next slot). The first UE can use this information to enhance decoding of the eMBB communication. In some cases, DCI format 2 1 can be used to transmit a set of pre-emption indications (e.g., pre-emption indication 1 through pre-emption indication N), where each pre-emption indication is 14 bits. For each UE, different pre-emption indications can correspond to different sets of component carriers (e.g., serving cells).

[0063] In wireless communication systems that allow both time-domain DMRS clustering and preemption (such as NR systems), the UE can be signaled that a group of PDSCH communications is to be clustered by time-domain DMRS, and can also receive a downlink preemption indication indicating that the resources of at least one of the PDSCH communications in the time-domain DMRS clustered PDSCH communications are to be preempted (e.g., fully or partially). In other words, the UE can receive a downlink preemption indication that may conflict with the performance of time-domain DMRS clustering. Therefore, the UE should be configured to handle time-domain DMRS clustering according to the preemption indication. It is worth noting that in wireless communication systems where downlink preemption is not allowed (such as LTE systems), this problem does not exist.

[0064] The aspects described herein provide techniques and apparatus for handling time-domain RS-splitting of a shared-channel communication group in accordance with a pre-emption instruction indicating that resources of at least one shared-channel communication in a shared-channel communication group are to be at least partially pre-empted. In some aspects, a UE may receive a pre-emption instruction indicating that resources of at least one shared-channel communication to be time-domain RS-splitting in one or more shared-channel communications are to be pre-empted, and may selectively perform time-domain RS-splitting of the one or more shared-channel communications based at least in part on the pre-emption instruction. Additional details are provided below.

[0065] Figures 5A-5F This is a diagram illustrating an example of the correlation between shared channel reference signal clustering and preemption indication according to various aspects of this disclosure. It is worth noting that, with... Figures 5A-5F The techniques and apparatus described in connection are described in the context of PDSCH DMRS clustering and downlink preemption indication. However, these techniques can be applied to other types of shared channels (e.g., uplink shared channels, sidelink shared channels, etc.) and / or other types of reference signals (e.g., reference signals used for uplink shared channels, reference signals used for sidelink shared channels, etc.).

[0066] As attached Figure 5A As shown by reference numeral 505 in the accompanying drawings, a base station (e.g., base station 110) may provide a UE (e.g., UE 120) with an indication that one or more PDSCH communications are to be bundled by a time-domain DMRS. In some aspects, this indication may be provided to the UE via Radio Resource Control (RRC) signaling, Media Access Control (MAC-CE) element, DCI, etc.

[0067] As shown by reference number 510, the base station can also provide, to the UE, a preemption indication indicating that resources of at least one PDSCH of the one or more PDSCH communications are to be preempted. For example, the base station can provide, and the UE can receive, a preemption indication identifying a set of preempted resources. The UE can determine, based at least in part on the information identifying the set of preempted resources and the indication that the one or more PDSCH communications are to be time domain DMRS bundled, that the preemption indication indicates that resources of at least one PDSCH communication of the one or more DMRS bundled PDSCH communications are to be preempted. As shown by reference number 515, the base station can transmit the one or more PDSCH communications to be time domain DMRS bundled.

[0068] As shown by reference number 520, the base station can selectively perform time domain DMRS bundling of the one or more PDSCH communications based at least in part on the preemption indication. In some aspects, selectively performing time domain DMRS bundling can include performing time domain DMRS bundling for all PDSCH communications, performing time domain DMRS bundling for one or more subsets of the one or more PDSCH communications, or refraining from performing time domain DMRS bundling for the one or more PDSCH communications, as described in more detail below. In some aspects, the UE can adjust time domain DMRS bundling for one or more PDSCH communications indicated by the base station in the indication 505 based at least in part on the preemption indication 510. The adjustment can include omitting one or more of the indicated PDSCH communications from time domain DMRS bundling, as described in more detail below.

[0069] In some aspects, the UE can selectively perform time domain DMRS bundling based at least in part on a preemption type associated with the preemption indication. The preemption type can indicate, for example, whether one or more DMRS resources are indicated as being preempted. That is, the preemption type can depend on whether the preemption indication indicates preemption of only data symbols (i.e., no preemption of DMRS resources). In some aspects, the UE can determine, in association with determining the preemption type, whether the resources indicated by the preemption indication include one or more DMRS resources. Here, if the UE determines that the preemption indication indicates preemption of only data symbols, then in some aspects the UE can perform time domain DMRS bundling across all PDSCH communications (e.g., including any preempted PDSCH communications, as all DMRS are still intact). Conversely, if the UE determines that the preemption indication indicates preemption of one or more DMRS resources, then in some aspects the UE can perform time domain DMRS bundling in a manner that accounts for the preemption of the one or more DMRS resources, examples of which are described in more detail below. In some aspects, the behavior of the UE in performing time domain DMRS bundling in the case of preemption of one or more DMRS resources can be based at least in part on a UE capability.

[0070] As another example, the type of preemption can indicate whether the PDSCH is preempted completely. That is, the type of preemption can depend on whether the preemption indication indicates a complete preemption of the PDSCH communication (i.e., such that the PDSCH includes empty symbols). In some aspects, the UE can determine, in association with determining the type of preemption, whether the resources indicated by the preemption indication indicate that the PDSCH communication is to be preempted completely. Here, if the UE determines that the preemption indication indicates a complete preemption of the PDSCH communication, in some aspects, the UE can determine whether a gap associated with the PDSCH communication to be preempted completely satisfies a threshold. Here, if the gap does not satisfy (e.g., is less than or equal to) the threshold, the UE can perform time-domain DMRS bundling in a manner that ignores the gap. Conversely, if the gap satisfies (e.g., is greater than) the threshold, the UE can perform time-domain DMRS bundling in a manner that accounts for the gap (e.g., because the gap can result in a loss of phase coherence), examples of which are described in greater detail below. In some aspects, the behavior of the UE when performing time-domain DMRS bundling in the context of complete PDSCH preemption can be based at least in part on a UE capability.

[0071] In some aspects, the UE can selectively perform time-domain DMRS bundling based at least in part on a timing of the preemption indication. For example, the UE can selectively perform time-domain DMRS bundling based at least in part on a determination that the preemption indication is a post indication associated with the preemption. In some aspects, the UE can determine that the preemption indication is a post indication based at least in part on the preemption indication being received after an end of a last PDSCH communication of the one or more PDSCH communications indicated to be time-domain DMRS bundled. In some aspects, the UE can determine that the preemption indication is a post indication based at least in part on the preemption indication being received after at least a threshold amount of time after an end of a last PDSCH communication of the one or more PDSCH communications indicated to be time-domain DMRS bundled. In some aspects, the threshold amount of time can be based at least in part on a UE capability. In some aspects, the UE can determine that the preemption indication is a post indication based at least in part on the preemption indication being received at a time that would cause the UE to change a DMRS bundling behavior (e.g., a time at which the UE is unable to update a DMRS bundled channel estimation process that has already started). In some aspects, in the case of a post indication, the UE can not change the time-domain DMRS bundling behavior. In some aspects, the determination that the preemption indication is a post indication can be based at least in part on a UE capability. For example, a UE capability of a first UE can cause the first UE to determine whether a preemption indication is a post indication based at least in part on whether the preemption indication is received after an end of a last PDSCH communication of the one or more PDSCH communications indicated to be time-domain DMRS bundled. As another example, a UE capability of a second UE can cause the second UE to determine whether a preemption indication is a post indication based at least in part on whether the preemption indication is received at a time that would cause the second UE to change a DMRS bundling behavior.

[0072] As another example, the UE can selectively perform time-domain DMRS bundling based at least in part on a determination that the preemption indication is a pre indication (e.g., prior to the one or more preempted PDSCH communications) associated with the preemption. Similarly, as another example, the UE can selectively perform time-domain DMRS bundling based at least in part on a determination that the preemption indication is a current indication associated with the preemption. In some aspects, in the case of a pre indication or a current indication, the UE can be expected to continue time-domain DMRS bundling (e.g., if DMRS of the preempted PDSCH communications are not affected).

[0073] In some aspects, the UE can selectively perform time-domain DMRS bundling based at least in part on a UE capability (e.g., an indication or control of a capability of the UE to perform time-domain DMRS bundling).

[0074] In some aspects, the UE can selectively perform time domain DMRS bundling based at least in part on a configured DMRS bundling parameter (e.g., a DMRS bundling parameter configured by a base station on the UE).

[0075] In general, the UE can selectively perform time domain DMRS bundling based at least in part on a preemption type, a timing of preemption, a UE capability, a configured DMRS bundling parameter, and / or one or more other factors.

[0076] In some aspects, selectively performing time domain DMRS bundling includes performing time domain DMRS bundling for all of the one or more PDSCH communications. For example, when the preemption type is data only (e.g., when the preemption indication indicates preemption of only data symbols), the UE can perform time domain DMRS bundling for all of the one or more PDSCH communications. In some aspects, the UE can perform time domain DMRS bundling for all of the one or more PDSCH communications even if one or more of the PDSCH communications have been preempted.

[0077] In some aspects, selectively performing time domain DMRS bundling includes performing time domain DMRS bundling for at least a subset of the one or more PDSCH communications.

[0078] For example, the UE can perform time domain DMRS bundling for a subset of the one or more PDSCH communications. In this example, the subset of the one or more PDSCH communications can include PDSCH communications before preempted resources. Figure 5B And Figure 5C are diagrams illustrating examples of such time domain DMRS bundling. In Figure 5B And Figure 5C In the example shown in Figure 5B In the example shown in Figure 5C In the example shown in

[0079] As another example, the UE can perform time-domain DMRS bundling for a first subset of the one or more PDSCH communications and can perform per-PDSCH DMRS processing for at least one other PDSCH communication of the one or more PDSCH communications. Here, the first subset of the one or more PDSCH communications can include PDSCH communications that are before the preemption resources, and the at least one other PDSCH communication can include a PDSCH communication that is after the preemption resources. Figures 5D-5F is a diagram illustrating an example of such time-domain DMRS bundling. In Figures 5D-5F , the preemption indication indicates that the DMRS resources of a particular PDSCH communication (PDSCH 3) are preempted. In Figure 5D , the example shown in illustrates that, based at least in part on the preemption indication, the UE performs time-domain DMRS bundling for a subset of PDSCH communications including PDSCH 1 and PDSCH 2, and performs time-domain DMRS bundling for a subset of PDSCH communications including PDSCH 4 and PDSCH 5. In Figure 5E , the example shown in illustrates that, based at least in part on the preemption indication, the UE performs time-domain DMRS bundling for a subset of PDSCH communications including PDSCH 1 and PDSCH 2 with the unaffected DMRS of PDSCH 3, and performs time-domain DMRS bundling for a subset of PDSCH communications including PDSCH 4 and PDSCH 5. In Figure 5F , the example shown in illustrates that, based at least in part on the preemption indication, the UE performs time-domain DMRS bundling for a subset of PDSCH communications including PDSCH 1 and PDSCH 2 with a first unaffected DMRS of PDSCH 3, and performs time-domain DMRS bundling for a subset of PDSCH communications including PDSCH 4 and PDSCH 5 with a second unaffected DMRS of PDSCH 3.

[0080] As another example, the UE can perform time-domain DMRS bundling for a first subset of the one or more PDSCH communications and can perform per-PDSCH DMRS processing for at least one other PDSCH communication of the one or more PDSCH communications. Here, the first subset of the one or more PDSCH communications can include PDSCH communications that are before the preemption resources, and the at least one other PDSCH communication can include a PDSCH communication that is after the preemption resources.

[0081] In some aspects, selectively performing time-domain DMRS bundling includes refraining from performing time-domain DMRS bundling for any of the one or more PDSCH communications. That is, in some aspects, the UE can refrain from performing time-domain DMRS bundling for any of the one or more PDSCH communications based at least in part on the preemption indication.

[0082] As indicated above, Figures 5A-5F are provided as examples. Other examples can differ from what is described Figures 5A-5F with respect to each of the described

[0083] Figure 6 is a diagram illustrating an example process 600 performed, for example, by a UE, in accordance with various aspects of the present disclosure. Example process 600 is an example where the UE (e.g., UE 120 and / or the like) performs operations associated with relating to shared channel reference signal bundling with preemption indication.

[0084] As Figure 6 indicated in the examples above, in some aspects, the process 600 can include receiving a preemption indication indicating that resources of at least one of one or more shared channel communications of a shared channel are to be preempted, where the one or more shared channel communications are to be time domain RS bundled based at least in part on RS associated with the shared channel (block 610). For example, the UE (e.g., antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, memory 282, and / or the like) can receive a preemption indication indicating that resources of at least one of one or more shared channel communications of a shared channel are to be preempted, as described above, for example, with reference to Figures 5A-5F In some aspects, the one or more shared channel communications are to be time domain RS bundled based at least in part on RS associated with the shared channel.

[0085] As Figure 6 further indicated in the examples above, in some aspects, the process 600 can include selectively performing time domain RS bundling of the one or more shared channel communications based at least in part on the preemption indication (block 620). For example, the UE (e.g., DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, memory 282, and / or the like) can selectively perform time domain RS bundling of the one or more shared channel communications based at least in part on the preemption indication, as described above, for example, with reference to Figures 5A-5F In some aspects, the UE can adjust the time domain RS bundling of the one or more shared channel communications based at least in part on the preemption indication. The adjustment can include omitting one or more of the shared channel communications from the time domain RS bundling, as described above.

[0086] Process 600 can include additional aspects, such as any single aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.

[0087] In a first aspect, selectively performing time-domain RS bundling based at least in part on the preemption indication includes selectively performing time-domain RS bundling based at least in part on a preemption type associated with the preemption indication.

[0088] In a second aspect, alone or in combination with the first aspect, selectively performing time-domain RS bundling based at least in part on the preemption indication includes selectively performing time-domain RS bundling based at least in part on a determination of whether resources indicated by the preemption indication include one or more RS resources.

[0089] In a third aspect, alone or in combination with one or more of the first and second aspects, selectively performing time-domain RS bundling based at least in part on the preemption indication includes selectively performing time-domain RS bundling based at least in part on a determination of whether the preemption indication indicates that a shared channel communication of the one or more shared channel communications is to be preempted entirely.

[0090] In a fourth aspect, alone or in combination with one or more of the first through third aspects, selectively performing time-domain RS bundling based at least in part on the preemption indication includes, in response to the preemption indication indicating that the shared channel communication is to be preempted entirely, selectively performing time-domain RS bundling based at least in part on a determination of whether a gap associated with the shared channel communication to be preempted entirely satisfies a threshold.

[0091] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, selectively performing time-domain RS bundling based at least in part on the preemption indication includes selectively performing time-domain RS bundling based at least in part on a timing of the preemption indication.

[0092] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, selectively performing time-domain RS bundling based at least in part on the preemption indication includes selectively performing time-domain RS bundling based at least in part on a determination that the preemption indication is a post indication associated with preemption.

[0093] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, process 600 includes determining, based at least in part on a UE capability, that the preemption indication is a post indication associated with preemption.

[0094] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, process 600 includes determining, based at least in part on the preemption indication being received after an end of a last shared channel communication of one or more shared channel communications to be time-domain RS bundled, that the preemption indication is a post indication.

[0095] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, process 600 includes determining that the preemption indication is a post indication based at least in part on the preemption indication being received at least a threshold amount of time after an end of a last shared channel communication of the one or more shared channel communications to be time domain RS bundled.

[0096] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the threshold amount of time is based at least in part on a UE capability.

[0097] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, process 600 includes determining that the preemption indication is a post indication based at least in part on the preemption indication being received at a time that would cause the UE to change RS bundling behavior.

[0098] In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, selectively performing time domain RS bundling based at least in part on the preemption indication includes selectively performing time domain RS bundling based at least in part on a determination that the preemption indication is a pre-indication associated with preemption.

[0099] In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, selectively performing time domain RS bundling based at least in part on the preemption indication includes selectively performing time domain RS bundling based at least in part on a determination that the preemption indication is a current indication associated with preemption.

[0100] In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, selectively performing time domain RS bundling based at least in part on the preemption indication includes selectively performing time domain RS bundling based at least in part on a UE capability.

[0101] In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, selectively performing time domain RS bundling based at least in part on the preemption indication includes selectively performing time domain RS bundling based at least in part on a configured RS bundling parameter.

[0102] In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, selectively performing time domain RS bundling includes performing time domain RS bundling for all shared communications channels of the one or more shared channel communications.

[0103] In the seventeenth aspect, selectively performing time-domain RS bundle, either alone or in combination with one or more of the first to sixteenth aspects, includes performing time-domain RS bundle for at least one subset of shared channel communications included in the one or more shared channel communications.

[0104] In the eighteenth aspect, selectively performing time-domain RS bundles, either alone or in combination with one or more of the first to seventeenth aspects, includes performing time-domain RS bundles for a first subset of shared-channel communications in the one or more shared-channel communications, and performing time-domain RS bundles for a second subset of shared-channel communications in the one or more shared-channel communications, the first subset of shared-channel communications preceding the pre-occupied resources of the one or more shared-channel communications, and the second subset of shared-channel communications following the pre-occupied resources of the one or more shared-channel communications.

[0105] In the nineteenth aspect, selectively performing time-domain RS bundle, either alone or in combination with one or more of the first to eighteenth aspects, comprises: performing time-domain RS bundle for a first subset of shared-channel communications in the one or more shared-channel communications, and performing per-shared-channel RS processing for at least one other shared-channel communication in the one or more shared-channel communications, i.e., not performing time-domain RS bundle, the first subset of shared-channel communications preceding the pre-occupied resources of the one or more shared-channel communications, and the at least one other shared-channel communication following the pre-occupied resources of the one or more shared-channel communications.

[0106] In the twentieth aspect, selectively performing time-domain RS bundle, either alone or in combination with one or more of the first to nineteenth aspects, includes suppressing the performance of time-domain RS bundle against any of the one or more shared channel communications.

[0107] In the twenty-first aspect, alone or in combination with one or more of the first to twentieth aspects, process 600 includes receiving an indication via at least one of RRC signaling, MAC-CE, or DCI regarding the one or more shared channel communications to be time-domain RS bundled.

[0108] although Figure 6 An example box of process 600 is shown, but in some respects, process 600 may include... Figure 6 The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 600 can be executed in parallel.

[0109] The following provides an overview of some aspects of this disclosure:

[0110] Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising: receiving a preemption indication indicating that resources of a shared channel are to be preempted for at least one shared channel communication among one or more shared channel communications of the shared channel, wherein the one or more shared channel communications are to be time domain reference signal (RS) bundled based at least in part on a RS associated with the shared channel; and selectively performing time domain RS bundling of the one or more shared channel communications based at least in part on the preemption indication.

[0111] Aspect 2: The method of Aspect 1, wherein selectively performing time domain RS bundling based at least in part on the preemption indication comprises selectively performing time domain RS bundling based at least in part on a preemption type associated with the preemption indication.

[0112] Aspect 3: The method of any of Aspects 1-2, wherein selectively performing time domain RS bundling based at least in part on the preemption indication comprises selectively performing time domain RS bundling based at least in part on a determination of whether resources indicated by the preemption indication include one or more RS resources.

[0113] Aspect 4: The method of any of Aspects 1-3, wherein selectively performing time domain RS bundling based at least in part on the preemption indication comprises selectively performing time domain RS bundling based at least in part on a determination of whether the preemption indication indicates that a shared channel communication of the one or more shared channel communications is to be preempted entirely.

[0114] Aspect 5: The method of Aspect 4, wherein, in response to the preemption indication indicating that the shared channel communication is to be preempted entirely, selectively performing time domain RS bundling based at least in part on the preemption indication comprises selectively performing time domain RS bundling based at least in part on a determination of whether a gap associated with the shared channel communication to be preempted entirely satisfies a threshold.

[0115] Aspect 6: The method of any of Aspects 1-5, wherein selectively performing time domain RS bundling based at least in part on the preemption indication comprises selectively performing time domain RS bundling based at least in part on a timing of the preemption indication.

[0116] Aspect 7: The method of any of Aspects 1-6, wherein selectively performing time domain RS bundling based at least in part on the preemption indication comprises selectively performing time domain RS bundling based at least in part on a determination that the preemption indication is a post indication associated with preemption.

[0117] Aspect 8: The method of Aspect 7, further comprising determining that the preemption indication is a post indication associated with preemption based at least in part on a UE capability.

[0118] Aspect 9: The method of any of aspects 7 through 8, further comprising determining that the preemption indication is a post indication based at least in part on the preemption indication being received after an end of a last shared channel communication of the one or more shared channel communications.

[0119] Aspect 10: The method of any of aspects 7 through 9, further comprising determining that the preemption indication is a post indication based at least in part on the preemption indication being received after an end of a last shared channel communication of the one or more shared channel communications by at least a threshold amount of time.

[0120] Aspect 11: The method of aspect 10, wherein the threshold amount of time is based at least in part on a UE capability.

[0121] Aspect 12: The method of any of aspects 7 through 11, further comprising determining that the preemption indication is a post indication based at least in part on the preemption indication being received at a time that would cause the UE to change RS bundling behavior.

[0122] Aspect 13: The method of any of aspects 1 through 6, wherein selectively performing time-domain RS bundling based at least in part on the preemption indication comprises selectively performing time-domain RS bundling based at least in part on a determination that the preemption indication is a pre-indication associated with preemption.

[0123] Aspect 14: The method of any of aspects 1 through 6, wherein selectively performing time-domain RS bundling based at least in part on the preemption indication comprises selectively performing time-domain RS bundling based at least in part on a determination that the preemption indication is a current indication associated with preemption.

[0124] Aspect 15: The method of any of aspects 1 through 14, wherein selectively performing time-domain RS bundling based at least in part on the preemption indication comprises selectively performing time-domain RS bundling based at least in part on a UE capability.

[0125] Aspect 16: The method of any of aspects 1 through 15, wherein selectively performing time-domain RS bundling based at least in part on the preemption indication comprises selectively performing time-domain RS bundling based at least in part on a configured RS bundling parameter.

[0126] Aspect 17: The method of any of aspects 1 through 16, wherein selectively performing time-domain RS bundling comprises performing time-domain RS bundling for all shared channel communications of the one or more shared channel communications.

[0127] Aspect 18: The method of any of aspects 1 through 16, wherein selectively performing time domain RS bundling comprises performing time domain RS bundling for at least a subset of the one or more shared channel communications included in the one or more shared channel communications.

[0128] Aspect 19: The method of any of aspects 1 through 16, wherein selectively performing time domain RS bundling comprises performing time domain RS bundling for a first subset of shared channel communications of the one or more shared channel communications, and performing time domain RS bundling for a second subset of shared channel communications of the one or more shared channel communications, wherein the first subset of shared channel communications is before a preempted resource of the one or more shared channel communications, and wherein the second subset of shared channel communications is after the preempted resource of the one or more shared channel communications.

[0129] Aspect 20: The method of any of aspects 1 through 16, wherein selectively performing time domain RS bundling comprises performing time domain RS bundling for a first subset of shared channel communications of the one or more shared channel communications, and performing per- shared channel RS processing for at least one other shared channel communication of the one or more shared channel communications, wherein the first subset of shared channel communications is before a preempted resource of the one or more shared channel communications, and wherein the at least one other shared channel communication is after the preempted resource of the one or more shared channel communications.

[0130] Aspect 21: The method of any of aspects 1 through 16, wherein selectively performing time domain RS bundling comprises refraining from performing time domain RS bundling for any of the one or more shared channel communications.

[0131] Aspect 22: The method of any of aspects 1 through 21, further comprising receiving an indication that the one or more shared channel communications are to be time domain RS bundled via at least one of: radio resource control signaling; a medium access control control element; or downlink control information.

[0132] Aspect 23: The method of any of aspects 1 through 22, wherein the shared channel is a physical downlink shared channel (PDSCH), and the one or more shared channel communications comprise one or more PDSCH communications.

[0133] Aspect 24: The method of any of aspects 1 through 23, wherein the RS is a demodulation RS (DMRS), and the time domain RS bundling is time domain DMRS bundling.

[0134] Aspect 25: An apparatus for wireless communication at a device, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more Aspects of Aspects 1-24.

[0135] Aspect 26: A device for wireless communication comprising memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method of one or more Aspects of Aspects 1-24.

[0136] Aspect 27: A device for wireless communication comprising at least one means for performing the method of one or more Aspects of Aspects 1-24.

[0137] Aspect 28: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more Aspects of Aspects 1-24.

[0138] Aspect 29: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more Aspects of Aspects 1-24.

[0139] The foregoing disclosure provides explanation and description to, but is not intended to be exhaustive or to be limited to the precise form disclosed. Modifications and variations can be made in light of the above disclosure or can be acquired from practice of the aspects.

[0140] As used herein, the term “component” is intended to be broadly interpreted to include hardware, firmware, and / or combinations of hardware and software. As used herein, a processor is implemented in hardware, firmware, and / or combinations of hardware and software.

[0141] As used herein, depending on the context, meeting a threshold can refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, and / or the like.

[0142] It will be apparent to those skilled in the art that the systems and / or methods described herein can be implemented in different forms of hardware, firmware, and / or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not limiting of the aspects. Thus, the operation and behavior of the systems and / or methods were described herein without reference to specific software code— it being understood that software and hardware can be designed to implement the systems and / or methods based, at least in part, on the description herein.

[0143] Although specific combinations of features are set out in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many combinations of features can be made without departing from the scope of the disclosure. Although each dependent claim listed below can stand on its own as a separate disclosure, the disclosure of various aspects includes each and every combination of the dependent claims with each other dependent claim. A phrase referring to "at least one of" a list of items refers to any combination of those items, including single members. As an example, "at least one of a, b, or c" is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination of multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c).

[0144] No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. Also, as used herein, the articles “a” and “an” are intended to include one or more items, and can be used interchangeably with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, a combination of related and unrelated items, and / or the like), and can be used interchangeably with “one or more.” Where only one item is intended, the phrase “only one” or similar language is used. Also, as used herein, the terms “has,” “have,” “having,” or the like are intended to be open-ended terms. Further, the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise.

Claims

1. A method of wireless communication performed by a user equipment (UE), comprising: receiving an indication of preemption of at least one of one or more shared channel communications of a shared channel, wherein the one or more shared channel communications are to be time domain reference signal (RS) bundled based at least in part on a RS associated with the shared channel; and selectively performing time domain RS bundling of the one or more shared channel communications based at least in part on the indication of preemption, wherein selectively performing time domain RS bundling based at least in part on the indication of preemption comprises per shared channel RS processing of at least one shared channel communication other than the at least one shared channel communication for which the indication of preemption is received.

2. The method of claim 1, wherein, selectively performing the time domain RS bundling based at least in part on the indication of preemption comprises selectively performing the time domain RS bundling based at least in part on a type of preemption associated with the indication of preemption.

3. The method of claim 1, wherein, selectively performing the time domain RS bundling based at least in part on the indication of preemption comprises selectively performing the time domain RS bundling based at least in part on a determination of whether the resources indicated by the indication of preemption include one or more RS resources.

4. The method of claim 1, wherein, selectively performing the time domain RS bundling based at least in part on the indication of preemption comprises selectively performing the time domain RS bundling based at least in part on a determination of whether the indication of preemption indicates that a shared channel communication of the one or more shared channel communications is to be preempted entirely.

5. The method of claim 4, wherein, selectively performing the time domain RS bundling based at least in part on the indication of preemption comprises selectively performing the time domain RS bundling based at least in part on a determination of whether a gap associated with the shared channel communication to be preempted entirely satisfies a threshold based at least in part on the indication of preemption.

6. The method of claim 1, wherein, selectively performing the time domain RS bundling based at least in part on the indication of preemption comprises selectively performing the time domain RS bundling based at least in part on a timing of the indication of preemption.

7. The method of claim 1, wherein, selectively performing the time domain RS bundling based at least in part on the indication of preemption comprises selectively performing the time domain RS bundling based at least in part on a determination that the indication of preemption is a post indication associated with the preemption.

8. The method of claim 7, further comprising determining that the indication of preemption is a post indication associated with the preemption based at least in part on a UE capability.

9. The method of claim 7, further comprising determining that the indication of preemption is a post indication based at least in part on the indication of preemption being received after an end of a last shared channel communication of the one or more shared channel communications.

10. The method of claim 7, further comprising determining that the indication of preemption is a post indication based at least in part on the indication of preemption being received at least a threshold amount of time after an end of a last shared channel communication of the one or more shared channel communications.

11. The method of claim 10, wherein, the threshold amount of time is based at least in part on a UE capability.

12. The method of claim 7, further comprising determining that the preemption indication is a post indication based at least in part on the preemption indication being received at a time that would cause the UE to change RS bundling behavior.

13. The method of claim 1, wherein, selectively performing the time-domain RS bundling based at least in part on the preemption indication comprises selectively performing the time-domain RS bundling based at least in part on a determination that the preemption indication is a pre-indication associated with the preemption.

14. The method of claim 1, wherein, selectively performing the time-domain RS bundling based at least in part on the preemption indication comprises selectively performing the time-domain RS bundling based at least in part on a determination that the preemption indication is a current indication associated with the preemption.

15. The method of claim 1, wherein, selectively performing the time-domain RS bundling based at least in part on the preemption indication comprises selectively performing the time-domain RS bundling based at least in part on a UE capability.

16. The method of claim 1, wherein, selectively performing the time-domain RS bundling based at least in part on the preemption indication comprises selectively performing the time-domain RS bundling based at least in part on a configured RS bundling parameter.

17. The method of claim 1, wherein, selectively performing the time-domain RS bundling comprises performing time-domain RS bundling for all of the one or more shared channel communications.

18. The method of claim 1, wherein, selectively performing the time-domain RS bundling comprises performing time-domain RS bundling for at least a subset of the one or more shared channel communications.

19. The method of claim 1, wherein, selectively performing the time-domain RS bundling comprises performing time-domain RS bundling for a first subset of the one or more shared channel communications and performing per- shared channel RS processing for at least one other shared channel communication of the one or more shared channel communications, wherein the first subset of shared channel communications is before the preempted resources of the at least one shared channel communication, and wherein the second subset of shared channel communications is after the preempted resources of the at least one shared channel communication.

20. The method of claim 1, wherein, selectively performing the time-domain RS bundling comprises performing time-domain RS bundling for a first subset of the one or more shared channel communications and performing per- shared channel RS processing for at least one other shared channel communication of the one or more shared channel communications, wherein the first subset of shared channel communications is before the preempted resources of the at least one shared channel communication, and wherein the at least one other shared channel communication is after the preempted resources of the at least one shared channel communication.

21. The method of claim 1, wherein, selectively performing the time-domain RS bundling comprises refraining from performing time-domain RS bundling for any of the one or more shared channel communications.

22. The method of claim 1, further comprising receiving an indication that the one or more shared channel communications are to be time-domain RS bundled via at least one of: radio resource control signaling; a medium access control control element; or downlink control information.

23. The method of claim 1, wherein, The shared channel is a physical downlink shared channel (PDSCH), and the one or more shared channel communications include one or more PDSCH communications.

24. The method of claim 1, wherein, The RS is a demodulation RS (DMRS), and the time domain RS bundling is time domain DMRS bundling.

25. A user equipment (UE) for wireless communication, comprising: memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: receive a preemption indication indicating that resources of at least one shared channel communication among one or more shared channel communications of a shared channel are to be preempted, wherein the one or more shared channel communications are to be time domain reference signal (RS) bundled based at least in part on a RS associated with the shared channel; and selectively perform time domain RS bundling of the one or more shared channel communications based at least in part on the preemption indication, wherein the one or more processors, when selectively performing time domain RS bundling based at least in part on the preemption indication, are configured to perform per shared channel RS processing of at least one shared channel communication other than the at least one shared channel communication for which the preemption indication is received.

26. The UE of claim 25, wherein, the one or more processors, when selectively performing the time domain RS bundling based at least in part on the preemption indication, are configured to selectively perform the time domain RS bundling based at least in part on a type of preemption associated with the preemption indication.

27. The UE of claim 25, wherein, the one or more processors, when selectively performing the time domain RS bundling based at least in part on the preemption indication, are configured to selectively perform the time domain RS bundling based at least in part on a determination of whether the resources indicated by the preemption indication include one or more RS resources.

28. The UE of claim 25, wherein, the one or more processors, when selectively performing the time domain RS bundling based at least in part on the preemption indication, are configured to selectively perform the time domain RS bundling based at least in part on a determination of whether the preemption indication indicates that a shared channel communication of the one or more shared channel communications is to be preempted entirely.

29. The UE of claim 28, wherein, selectively performing the time domain RS bundling based at least in part on the preemption indication, in response to the preemption indication indicating that the shared channel communication is to be preempted entirely, includes selectively performing the time domain RS bundling based at least in part on a determination of whether a gap associated with the shared channel communication to be preempted entirely satisfies a threshold.

30. The UE of claim 25, wherein, the one or more processors, when selectively performing the time domain RS bundling based at least in part on the preemption indication, are configured to selectively perform the time domain RS bundling based at least in part on a timing of the preemption indication.

31. The UE of claim 25, wherein, the one or more processors, when selectively performing the time domain RS bundling based at least in part on the preemption indication, are configured to selectively perform the time domain RS bundling based at least in part on a determination that the preemption indication is a post indication associated with the preemption.

32. The UE of claim 31, wherein, the one or more processors are further configured to determine, based at least in part on a UE capability, that the pre-emption indication is a post indication associated with the pre-emption.

33. The UE of claim 31, wherein, the one or more processors are further configured to determine that the pre-emption indication is a post indication based at least in part on the pre-emption indication being received after an end of a last shared channel communication of the one or more shared channel communications.

34. The UE of claim 31, wherein, the one or more processors are further configured to determine that the pre-emption indication is a post indication based at least in part on the pre-emption indication being received after an end of a last shared channel communication of the one or more shared channel communications by at least a threshold amount of time.

35. The UE of claim 34, wherein, the threshold amount of time is based at least in part on a UE capability.

36. The UE of claim 31, wherein, the one or more processors are further configured to determine that the pre-emption indication is a post indication based at least in part on the pre-emption indication being received at a time that would cause the UE to change RS bundling behavior.

37. The UE of claim 25, wherein, the one or more processors, when selectively performing the time-domain RS bundling based at least in part on the pre-emption indication, are configured to selectively perform the time-domain RS bundling based at least in part on a determination that the pre-emption indication is a pre indication associated with the pre-emption.

38. The UE of claim 25, wherein, the one or more processors, when selectively performing the time-domain RS bundling based at least in part on the pre-emption indication, are configured to selectively perform the time-domain RS bundling based at least in part on a determination that the pre-emption indication is a current indication associated with the pre-emption.

39. The UE of claim 25, wherein, the one or more processors, when selectively performing the time-domain RS bundling based at least in part on the pre-emption indication, are configured to selectively perform the time-domain RS bundling based at least in part on a UE capability.

40. The UE of claim 25, wherein, the one or more processors, when selectively performing the time-domain RS bundling based at least in part on the pre-emption indication, are configured to selectively perform the time-domain RS bundling based at least in part on a configured RS bundling parameter.

41. The UE of claim 25, wherein, the one or more processors, when selectively performing the time-domain RS bundling, are configured to perform time-domain RS bundling for all of the one or more shared channel communications.

42. The UE of claim 25, wherein, the one or more processors, when selectively performing the time-domain RS bundling, are configured to perform time-domain RS bundling for at least a subset of the one or more shared channel communications.

43. The UE of claim 25, wherein, the one or more processors, when selectively performing the time-domain RS bundling, are configured to perform time-domain RS bundling for a first subset of the one or more shared channel communications and to perform time-domain RS bundling for a second subset of the one or more shared channel communications, wherein the first subset of shared channel communications is before the preempted resources of the at least one shared channel communication, and wherein the second subset of shared channel communications is after the preempted resources of the at least one shared channel communication.

44. The UE of claim 25, wherein, the one or more processors, when selectively performing the time domain RS bundling, are configured to perform time domain RS bundling for a first subset of shared channel communications of the one or more shared channel communications, and to perform per shared channel RS processing for at least one other shared channel communication of the one or more shared channel communications, wherein the first subset of shared channel communications precede the preempted resources of the at least one shared channel communication, and wherein the at least one other shared channel communication follows the preempted resources of the at least one shared channel communication.

45. The UE of claim 25, wherein, the one or more processors, when selectively performing the time domain RS bundling, are configured to refrain from performing time domain RS bundling for any of the one or more shared channel communications.

46. The UE of claim 25, wherein, the one or more processors are further configured to receive the indication that the at least one shared channel communication among the one or more shared channel communications is to be time domain RS bundled via at least one of: radio resource control signaling; a medium access control control element; or downlink control information.

47. The UE of claim 25, wherein, the shared channel is a physical downlink shared channel (PDSCH), and the one or more shared channel communications comprise one or more PDSCH communications.

48. The UE of claim 25, wherein, the RS is a demodulation RS (DMRS), and the time domain RS bundling is time domain DMRS bundling.

49. A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising: one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to: receive a preemption indication indicating that resources of at least one shared channel communication among one or more shared channel communications of a shared channel are to be preempted, wherein the one or more shared channel communications are to be time domain reference signal (RS) bundled based at least in part on a RS associated with the shared channel; and selectively perform time domain RS bundling of the one or more shared channel communications based at least in part on the preemption indication, wherein the one or more instructions that cause the one or more processors to selectively perform time domain RS bundling based at least in part on the preemption indication cause the one or more processors to perform per shared channel RS processing of at least one shared channel communication other than the at least one shared channel communication for which the preemption indication is received.

50. The non-transitory computer readable medium of claim 49, wherein, the one or more instructions that cause the one or more processors to selectively perform the time domain RS bundling based at least in part on the preemption indication cause the one or more processors to selectively perform the time domain RS bundling based at least in part on a type of preemption associated with the preemption indication.

51. The non-transitory computer readable medium of claim 49, wherein, The one or more instructions that cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on the preemption indication cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on a determination of whether the resources indicated by the preemption indication include one or more RS resources.

52. The non-transitory computer readable medium of claim 49, wherein, The one or more instructions that cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on the preemption indication cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on a determination of whether the preemption indication indicates that a shared channel communication of the one or more shared channel communications is to be preempted entirely.

53. The non-transitory computer readable medium of claim 52, wherein, The one or more instructions that cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on the preemption indication cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on a determination of whether a gap associated with the shared channel communication to be preempted entirely satisfies a threshold.

54. The non-transitory computer readable medium of claim 49, wherein, The one or more instructions that cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on the preemption indication cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on a timing of the preemption indication.

55. The non-transitory computer readable medium of claim 49, wherein, The one or more instructions that cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on the preemption indication cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on a determination that the preemption indication is a late indication associated with the preemption.

56. The non-transitory computer readable medium of claim 55, wherein, The one or more instructions further cause the one or more processors to determine that the preemption indication is a late indication associated with the preemption based at least in part on a UE capability.

57. The non-transitory computer-readable medium of claim 55, wherein, The one or more instructions further cause the one or more processors to determine that the preemption indication is a late indication based at least in part on the preemption indication being received after an end of a last shared channel communication of the one or more shared channel communications.

58. The non-transitory computer-readable medium of claim 55, wherein, The one or more instructions further cause the one or more processors to determine that the preemption indication is a late indication based at least in part on the preemption indication being received after an end of a last shared channel communication of the one or more shared channel communications by at least a threshold amount of time.

59. The non-transitory computer readable medium of claim 58, wherein, The threshold amount of time is based at least in part on a UE capability.

60. The non-transitory computer readable medium of claim 55, wherein, The one or more instructions further cause the one or more processors to determine that the preemption indication is a late indication based at least in part on the preemption indication being received at a time that would cause the UE to change RS bundling behavior.

61. The non-transitory computer-readable medium of claim 49, wherein, The one or more instructions that cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on the preemption indication cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on a determination that the preemption indication is a pre-indication associated with the preemption.

62. The non-transitory computer readable medium of claim 49, wherein, The one or more instructions that cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on the preemption indication cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on a determination that the preemption indication is a current indication associated with the preemption.

63. The non-transitory computer-readable medium of claim 49, wherein, The one or more instructions that cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on the preemption indication cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on a UE capability.

64. The non-transitory computer readable medium of claim 49, wherein, The one or more instructions that cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on the preemption indication cause the one or more processors to selectively perform the time-domain RS bundling based at least in part on a configured RS bundling parameter.

65. The non-transitory computer readable medium of claim 49, wherein, The one or more instructions that cause the one or more processors to selectively perform the time-domain RS bundling cause the one or more processors to perform time-domain RS bundling for all of the one or more shared channel communications.

66. The non-transitory computer readable medium of claim 49, wherein, The one or more instructions that cause the one or more processors to selectively perform the time-domain RS bundling cause the one or more processors to perform time-domain RS bundling for at least a subset of the one or more shared channel communications included in the one or more shared channel communications.

67. The non-transitory computer-readable medium of claim 49, wherein, The one or more instructions that cause the one or more processors to selectively perform the time-domain RS bundling cause the one or more processors to perform time-domain RS bundling for a first subset of the one or more shared channel communications and to perform per-shared channel RS processing for at least one other shared channel communication of the one or more shared channel communications, wherein the first subset of shared channel communications is before the preempted resources of the at least one shared channel communication, and wherein the second subset of shared channel communications is after the preempted resources of the at least one shared channel communication.

68. The non-transitory computer readable medium of claim 49, wherein, The one or more instructions that cause the one or more processors to selectively perform the time-domain RS bundling cause the one or more processors to perform time-domain RS bundling for a first subset of the one or more shared channel communications and to perform per-shared channel RS processing for at least one other shared channel communication of the one or more shared channel communications, wherein the first subset of shared channel communications is before the preempted resources of the at least one shared channel communication, and wherein the at least one other shared channel communication is after the preempted resources of the at least one shared channel communication.

69. The non-transitory computer-readable medium of claim 49, wherein, The one or more instructions causing the one or more processors to selectively perform the time domain RS bundling cause the one or more processors to refrain from performing time domain RS bundling for any of the one or more shared channel communications.

70. The non-transitory computer readable medium of claim 49, wherein, The one or more instructions further cause the one or more processors to receive the indication that the one or more shared channel communications are to be time domain RS bundled via at least one of: radio resource control signaling; a medium access control control element; or downlink control information.

71. The non-transitory computer-readable medium of claim 49, wherein, The shared channel is a physical downlink shared channel (PDSCH), and the one or more shared channel communications include one or more PDSCH communications.

72. The non-transitory computer readable medium of claim 49, wherein, The RS is a demodulation RS (DMRS), and the time domain RS bundling is time domain DMRS bundling.

73. An apparatus for wireless communication, comprising: means for receiving an indication of one or more shared channel communications of a shared channel, wherein the one or more shared channel communications are to be time domain RS bundled based at least in part on a reference signal (RS) associated with the shared channel; and means for selectively performing time domain RS bundling of the one or more shared channel communications based at least in part on the indication of the one or more shared channel communications, wherein the means for selectively performing the time domain RS bundling comprises means for processing each shared channel RS of at least one shared channel communication other than the at least one shared channel communication for which the indication is received.

74. The apparatus of claim 73, wherein, The means for selectively performing the time domain RS bundling based at least in part on the indication comprises means for selectively performing the time domain RS bundling based at least in part on a type of preemption associated with the indication.

75. The apparatus of claim 73, wherein, The means for selectively performing the time domain RS bundling based at least in part on the indication comprises means for selectively performing the time domain RS bundling based at least in part on a determination of whether the resources indicated by the indication include one or more RS resources.

76. The apparatus of claim 73, wherein, The means for selectively performing the time domain RS bundling based at least in part on the indication comprises means for selectively performing the time domain RS bundling based at least in part on a determination of whether the indication indicates that a shared channel communication of the one or more shared channel communications is to be preempted entirely.

77. The apparatus of claim 76, wherein, In response to the indication indicating that the shared channel communication is to be preempted entirely, selectively performing the time domain RS bundling based at least in part on the indication comprises selectively performing the time domain RS bundling based at least in part on a determination of whether a gap associated with the shared channel communication to be preempted entirely satisfies a threshold.

78. The apparatus of claim 73, wherein, The means for selectively performing the time domain RS bundling based at least in part on the indication comprises means for selectively performing the time domain RS bundling based at least in part on a timing of the indication.

79. The apparatus of claim 73, wherein, The apparatus for selectively performing the time-domain RS bundling based at least in part on the pre-emption indication includes means for selectively performing the time-domain RS bundling based at least in part on a determination that the pre-emption indication is a post-indication associated with the pre-emption.

80. The apparatus of claim 79, further comprising means for determining that the pre-emption indication is a post-indication associated with the pre-emption based at least in part on a UE capability.

81. The apparatus of claim 79, further comprising means for determining that the pre-emption indication is a post-indication based at least in part on the pre-emption indication being received after an end of a last shared channel communication of the one or more shared channel communications.

82. The apparatus of claim 79, further comprising means for determining that the pre-emption indication is a post-indication based at least in part on the pre-emption indication being received after an end of a last shared channel communication of the one or more shared channel communications by at least a threshold amount of time.

83. The apparatus of claim 82, wherein, The threshold amount of time is based at least in part on a UE capability.

84. The apparatus of claim 79, further comprising means for determining that the pre-emption indication is a post-indication based at least in part on the pre-emption indication being received at a time that would cause a UE to change RS bundling behavior.

85. The apparatus of claim 73, wherein, The apparatus for selectively performing the time-domain RS bundling based at least in part on the pre-emption indication includes means for selectively performing the time-domain RS bundling based at least in part on a determination that the pre-emption indication is a pre-indication associated with the pre-emption.

86. The apparatus of claim 73, wherein, The apparatus for selectively performing the time-domain RS bundling based at least in part on the pre-emption indication includes means for selectively performing the time-domain RS bundling based at least in part on a determination that the pre-emption indication is a pre-indication associated with the pre-emption.

87. The apparatus of claim 73, wherein, The apparatus for selectively performing the time-domain RS bundling based at least in part on the pre-emption indication includes means for selectively performing the time-domain RS bundling based at least in part on a determination that the pre-emption indication is a pre-indication associated with the pre-emption.

88. The apparatus of claim 73, wherein, The apparatus for selectively performing the time-domain RS bundling based at least in part on the pre-emption indication includes means for selectively performing the time-domain RS bundling based at least in part on a UE capability.

89. The apparatus of claim 73, wherein, The apparatus for selectively performing the time-domain RS bundling based at least in part on the pre-emption indication includes means for selectively performing the time-domain RS bundling based at least in part on a configured RS bundling parameter.

90. The apparatus of claim 73, wherein, The apparatus for selectively performing the time-domain RS bundling includes means for performing time-domain RS bundling for all of the one or more shared channel communications.

91. The apparatus of claim 73, wherein, The apparatus for selectively performing the time-domain RS bundling includes means for performing time-domain RS bundling for at least a subset of the one or more shared channel communications. The apparatus for selectively performing the time-domain RS bundling includes means for performing time-domain RS bundling for a first subset of the one or more shared channel communications and performing time-domain RS bundling for a second subset of the one or more shared channel communications, wherein the first subset of shared channel communications is before the preempted resources of the at least one shared channel communication, and wherein the second subset of shared channel communications is after the preempted resources of the at least one shared channel communication.

92. The apparatus of claim 73, wherein, The apparatus for selectively performing the time-domain RS bundling includes means for performing time-domain RS bundling for a first subset of shared channel communications of the one or more shared channel communications, and performing per- shared channel RS processing for at least one other shared channel communication of the one or more shared channel communications, wherein the first subset of shared channel communications is before the preempted resources of the at least one shared channel communication, and wherein the at least one other shared channel communication is after the preempted resources of the at least one shared channel communication.

93. The apparatus of claim 73, wherein, The apparatus for selectively performing the time-domain RS bundling includes means for refraining from performing time-domain RS bundling for any of the one or more shared channel communications.

94. The apparatus of claim 73, further comprising means for receiving an indication that the one or more shared channel communications are to be time-domain RS bundled via at least one of: radio resource control signaling; a medium access control control element; or downlink control information.

95. The apparatus of claim 73, wherein, The shared channel is a physical downlink shared channel (PDSCH), and the one or more shared channel communications include one or more PDSCH communications.

96. The apparatus of claim 73, wherein, The RS is a demodulation RS (DMRS), and the time-domain RS bundling is time-domain DMRS bundling.

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