Patent Publication Number: US-2022225314-A1

Title: Association of channel reference signals with a common beam transmission configuration indicator

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This patent application claims priority to U.S. Provisional Patent Application No. 63/135,384, filed on Jan. 8, 2021, entitled “ASSOCIATION OF CHANNEL REFERENCE SIGNALS WITH A COMMON BEAM TRANSMISSION CONFIGURATION INDICATOR,” and assigned to the assignee hereof. The disclosure of the prior application is considered part of and is incorporated by reference into this patent application. 
    
    
     FIELD OF THE DISCLOSURE 
     Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for association of channel reference signals with a common beam transmission configuration indicator. 
     BACKGROUND 
     Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, or the like). 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 (LIE). LTE/LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP). 
     A wireless network may include one or more base stations that support communication for a user equipment (UE) or multiple UEs. A UE may communicate with a base station via downlink communications and uplink communications. “Downlink” (or “DL”) refers to a communication link from the base station to the UE, and “uplink” (or “UL”) refers to a communication link from the UE to the base station. 
     The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate on a municipal, national, regional, and/or global level. New Radio (NR), which may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the 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 orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink, using CP-OFDM and/or single-carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR, and other radio access technologies remain useful. 
     SUMMARY 
     In some aspects, a user equipment (UE) for wireless communication includes a memory; and one or more processors coupled to the memory, the memory and the one or more processors configured to: receive a transmission configuration indicator (TCI) identifying a TCI state; associate the TCI state with one or more channels or reference signals based at least in part on a configured association; and communicate using the one or more channels or reference signals based at least in part on associating the TCI state with the one or more channels or reference signals. 
     In some aspects, a method of wireless communication performed by a UE includes receiving a TCI identifying a TCI state; associating the TCI state with one or more channels or reference signals based at least in part on a configured association; and communicating using the one or more channels or reference signals based at least in part on associating the TCI state with the one or more channels or reference signals. 
     In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: receive a TCI identifying a TCI state; associate the TCI state with one or more channels or reference signals based at least in part on a configured association; and communicate using the one or more channels or reference signals based at least in part on associating the TCI state with the one or more channels or reference signals. 
     In some aspects, an apparatus for wireless communication includes means for receiving a TCI identifying a TCI state; and means for associating the TCI state with one or more channels or reference signals based at least in part on a configured association; and means for communicating using the one or more channels or reference signals based at least in part on associating the TCI state with the one or more channels or reference signals. 
     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 drawings and specification. 
     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 may be better understood. Additional features and advantages will be described hereinafter. The conception and specific examples disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims Characteristics of the concepts disclosed herein, both their organization and method of operation, together with associated advantages, will be better understood from the following description when considered in connection with the accompanying figures. Each of the figures is provided for the purposes of illustration and description, and not as a definition of the limits of the claims. 
     While aspects are described in the present disclosure by illustration to some examples, those skilled in the art will understand that such aspects may be implemented in many different arrangements and scenarios. Techniques described herein may be implemented using different platform types, devices, systems, shapes, sizes, and/or packaging arrangements. For example, some aspects may be implemented via integrated chip embodiments or other non-module-component based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail/purchasing devices, medical devices, and/or artificial intelligence devices). Aspects may be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and/or system-level components. Devices incorporating described aspects and features may include additional components and features for implementation and practice of claimed and described aspects. For example, transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and/or summers). It is intended that aspects described herein may be practiced in a wide variety of devices, components, systems, distributed arrangements, and/or end-user devices of varying size, shape, and constitution. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       So that the above-recited features of the present disclosure can be understood in detail, a more particular description, briefly summarized above, may be had by reference to aspects, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only certain typical aspects of this disclosure and are therefore not to be considered limiting of its scope, for the description may admit to other equally effective aspects. The same reference numbers in different drawings may identify the same or similar elements. 
         FIG. 1  is a diagram illustrating an example of a wireless network, in accordance with the present disclosure. 
         FIG. 2  is a diagram illustrating an example of a base station in communication with a user equipment (UE) in a wireless network, in accordance with the present disclosure. 
         FIG. 3  is a diagram illustrating an example of using beams for communications between a base station and a UE, in accordance with the present disclosure. 
         FIG. 4  is a diagram illustrating an example associated with configuration of an association between channels or reference signals and a transmission configuration indicator, in accordance with the present disclosure. 
         FIG. 5  is a diagram illustrating an example process associated with configuration of an association between channels or reference signals and a transmission configuration indicator, in accordance with the present disclosure. 
         FIGS. 6-7  are block diagrams of example apparatuses for wireless communication, in accordance with the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     Various aspects of the disclosure are described more fully hereinafter with reference to the accompanying drawings. This disclosure may, however, be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. One skilled in the art should appreciate that the scope of the disclosure is intended to cover any aspect of the disclosure disclosed herein, whether implemented independently of or combined with any other aspect of the disclosure. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover such an apparatus or method which is practiced using other structure, functionality, or structure and functionality in addition to or other than the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim. 
     Several aspects of telecommunication systems will now be presented with reference to various apparatuses and techniques. These apparatuses and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, or the like (collectively referred to as “elements”). These elements may be implemented using hardware, software, or combinations thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. 
     While aspects may be described herein using terminology commonly associated with a 5G or New Radio (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). 
       FIG. 1  is a diagram illustrating an example of a wireless network  100 , in accordance with the present disclosure. The wireless network  100  may be or may include elements of a 5G (e.g., NR) network and/or a 4G (e.g., Long Term Evolution (LTE)) network, among other examples. The wireless network  100  may include one or more base stations  110  (shown as a BS  110   a , a BS  110   b , a BS  110   c , and a BS  110   d ), a user equipment (UE)  120  or multiple UEs  120  (shown as a UE  120   a , a UE  120   b , a UE  120   c , a UE  120   d , and a UE  120   e ), and/or other network entities. A base station  110  is an entity that communicates with UEs  120 . A base station  110  (sometimes referred to as a BS) may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, and/or a transmission reception point (TRP). Each base station  110  may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term “cell” can refer to a coverage area of a base station  110  and/or a base station subsystem serving this coverage area, depending on the context in which the term is used. 
     A base station  110  may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs  120  with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs  120  with service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs  120  having association with the femto cell (e.g., UEs  120  in a closed subscriber group (CSG)). A base station  110  for a macro cell may be referred to as a macro base station. A base station  110  for a pico cell may be referred to as a pico base station. A base station  110  for a femto cell may be referred to as a femto base station or an in-home base station. In the example shown in  FIG. 1 , the BS  110   a  may be a macro base station for a macro cell  102   a , the BS  110   b  may be a pico base station for a pico cell  102   b , and the BS  110   c  may be a femto base station for a femto cell  102   c . A base station may support one or multiple (e.g., three) cells. 
     In some examples, a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a base station  110  that is mobile (e.g., a mobile base station). In some examples, the base stations  110  may be interconnected to one another and/or to one or more other base stations  110  or network nodes (not shown) in the wireless network  100  through various types of backhaul interfaces, such as a direct physical connection or a virtual network, using any suitable transport network. 
     The wireless network  100  may include one or more relay stations. A relay station is an entity that can receive a transmission of data from an upstream station (e.g., a base station  110  or a UE  120 ) and send a transmission of the data to a downstream station (e.g., a UE  120  or a base station  110 ). A relay station may be a UE  120  that can relay transmissions for other UEs  120 . In the example shown in  FIG. 1 , the BS  110   d  (e.g., a relay base station) may communicate with the BS  110   a  (e.g., a macro base station) and the UE  120   d  in order to facilitate communication between the BS  110   a  and the UE  120   d . A base station  110  that relays communications may be referred to as a relay station, a relay base station, a relay, or the like. 
     The wireless network  100  may be a heterogeneous network that includes base stations  110  of different types, such as macro base stations, pico base stations, femto base stations, relay base stations, or the like. These different types of base stations  110  may have different transmit power levels, different coverage areas, and/or different impacts on interference in the wireless network  100 . For example, macro base stations may have a high transmit power level (e.g., 5 to 40 watts) whereas pico base stations, femto base stations, and relay base stations may have lower transmit power levels (e.g., 0.1 to 2 watts). 
     A network controller  130  may couple to or communicate with a set of base stations  110  and may provide coordination and control for these base stations  110 . The network controller  130  may communicate with the base stations  110  via a backhaul communication link. The base stations  110  may communicate with one another directly or indirectly via a wireless or wireline backhaul communication link. 
     The UEs  120  may be dispersed throughout the wireless network  100 , and each UE  120  may be stationary or mobile. A UE  120  may include, for example, an access terminal, a terminal, a mobile station, and/or a subscriber unit. A UE  120  may 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, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and/or a satellite radio), a vehicular component or sensor, a smart meter/sensor, industrial manufacturing equipment, a global positioning system device, and/or any other suitable device that is configured to communicate via a wireless medium. 
     Some UEs  120  may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs. An MTC UE and/or an eMTC UE may include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, and/or a location tag, that may communicate with a base station, another device (e.g., a remote device), or some other entity. Some UEs  120  may be considered Internet-of-Things (IoT) devices, and/or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs  120  may be considered a Customer Premises Equipment. A UE  120  may be included inside a housing that houses components of the UE  120 , such as processor components and/or memory components. In some examples, the processor components and the memory components may be coupled together. For example, the processor components (e.g., one or more processors) and the memory components (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, and/or electrically coupled. 
     In general, any number of wireless networks  100  may be deployed in a given geographic area. Each wireless network  100  may support a particular RAT and may operate on one or more frequencies. A RAT may be referred to as a radio technology, an air interface, or the like. A frequency may be referred to as a carrier, a frequency channel, or the like. Each frequency may 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 may be deployed. 
     In some examples, two or more UEs  120  (e.g., shown as UE  120   a  and UE  120   e ) may communicate directly using one or more sidelink channels (e.g., without using a base station  110  as an intermediary to communicate with one another). For example, the UEs  120  may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, a vehicle-to-everything (V2X) protocol (e.g., which may include a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, or a vehicle-to-pedestrian (V2P) protocol), and/or a mesh network. In such examples, a UE  120  may perform scheduling operations, resource selection operations, and/or other operations described elsewhere herein as being performed by the base station  110 . 
     Devices of the wireless network  100  may communicate using the electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, channels, or the like. For example, devices of the wireless network  100  may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). It should be understood that although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in various documents and articles. A similar nomenclature issue sometimes occurs with regard to FR2, which is often referred to (interchangeably) as a “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz-300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band. 
     The frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Recent 5G NR studies have identified an operating band for these mid-band frequencies as frequency range designation FR3 (7.125 GHz-24.25 GHz). Frequency bands falling within FR3 may inherit FR1 characteristics and/or FR2 characteristics, and thus may effectively extend features of FR1 and/or FR2 into mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6 GHz-71 GHz), FR4 (52.6 GHz-114.25 GHz), and FR5 (114.25 GHz-300 GHz). Each of these higher frequency bands falls within the EHF band. 
     With the above examples in mind, unless specifically stated otherwise, it should be understood that the term “sub-6 GHz” or the like, if used herein, may broadly represent frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. Further, unless specifically stated otherwise, it should be understood that the term “millimeter wave” or the like, if used herein, may broadly represent frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1, and/or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and/or FR5) may be modified, and techniques described herein are applicable to those modified frequency ranges. 
     In some aspects, the UE  120  may include a communication manager  140 . As described in more detail elsewhere herein, the communication manager  140  may receive a transmission configuration indicator (TCI) identifying a TCI state; associate the TCI state with one or more channels or reference signals based at least in part on a configured association; and communicate using the one or more channels or reference signals based at least in part on associating the TCI state with the one or more channels or reference signals. Additionally, or alternatively, the communication manager  140  may perform one or more other operations described herein. 
     In some aspects, the base station  110  may include a communication manager  150 . As described in more detail elsewhere herein, the communication manager  150  may transmit a TCI identifying a TCI state; and communicate using one or more channels or reference signals associated with the TCI state. Additionally, or alternatively, the communication manager  150  may perform one or more operations described herein. 
     As indicated above,  FIG. 1  is provided as an example. Other examples may differ from what is described with regard to  FIG. 1 . 
       FIG. 2  is a diagram illustrating an example  200  of a base station  110  in communication with a UE  120  in a wireless network  100 , in accordance with the present disclosure. The base station  110  may be equipped with a set of antennas  234   a  through  234   t , such as T antennas (T≥1). The UE  120  may be equipped with a set of antennas  252   a  through  252   r , such as R antennas (R≥1). 
     At the base station  110 , a transmit processor  220  may receive data, from a data source  212 , intended for the UE  120  (or a set of UEs  120 ). The transmit processor  220  may select one or more modulation and coding schemes (MCSs) for the UE  120  based at least in part on one or more channel quality indicators (CQIs) received from that UE  120 . The base station  110  may process (e.g., encode and modulate) the data for the UE  120  based at least in part on the MCS(s) selected for the UE  120  and may provide data symbols for the UE  120 . The transmit processor  220  may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and/or upper layer signaling) and provide overhead symbols and control symbols. The transmit processor  220  may generate reference symbols for reference signals (e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)) and synchronization signals (e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS)). A transmit (TX) multiple-input multiple-output (MIMO) processor  230  may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems  232  (e.g., T modems), shown as modems  232   a  through  232   t . For example, each output symbol stream may be provided to a modulator component (shown as MOD) of a modem  232 . Each modem  232  may use a respective modulator component to process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modem  232  may further use a respective modulator component to process (e.g., convert to analog, amplify, filter, and/or upconvert) the output sample stream to obtain a downlink signal. The modems  232   a  through  232   t  may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas  234  (e.g., T antennas), shown as antennas  234   a  through  234   t.    
     At the UE  120 , a set of antennas  252  (shown as antennas  252   a  through  252   r ) may receive the downlink signals from the base station  110  and/or other base stations  110  and may provide a set of received signals (e.g., R received signals) to a set of modems  254  (e.g., R modems), shown as modems  254   a  through  254   r . For example, each received signal may be provided to a demodulator component (shown as DEMOD) of a modem  254 . Each modem  254  may use a respective demodulator component to condition (e.g., filter, amplify, downconvert, and/or digitize) a received signal to obtain input samples. Each modem  254  may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector  256  may obtain received symbols from the modems  254 , may perform MIMO detection on the received symbols if applicable, and may provide detected symbols. A receive processor  258  may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE  120  to a data sink  260 , and may provide decoded control information and system information to a controller/processor  280 . The term “controller/processor” may refer to one or more controllers, one or more processors, or a combination thereof. A channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and/or a CQI parameter, among other examples. In some examples, one or more components of the UE  120  may be included in a housing  284 . 
     The network controller  130  may include a communication unit  294 , a controller/processor  290 , and a memory  292 . The network controller  130  may include, for example, one or more devices in a core network. The network controller  130  may communicate with the base station  110  via the communication unit  294 . 
     One or more antennas (e.g., antennas  234   a  through  234   t  and/or antennas  252   a  through  252   r ) may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and/or one or more antenna arrays, among other examples. An antenna panel, an antenna group, a set of antenna elements, and/or an antenna array may include one or more antenna elements (within a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements, and/or one or more antenna elements coupled to one or more transmission and/or reception components, such as one or more components of  FIG. 2 . 
     On the uplink, at the UE  120 , a transmit processor  264  may receive and process data from a data source  262  and control information (e.g., for reports that include RSRP, RSSI, RSRQ, and/or CQI) from the controller/processor  280 . The transmit processor  264  may generate reference symbols for one or more reference signals. The symbols from the transmit processor  264  may be precoded by a TX MIMO processor  266  if applicable, further processed by the modems  254  (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station  110 . In some examples, the modem  254  of the UE  120  may include a modulator and a demodulator. In some examples, the UE  120  includes a transceiver. The transceiver may include any combination of the antenna(s)  252 , the modem(s)  254 , the MIMO detector  256 , the receive processor  258 , the transmit processor  264 , and/or the TX MIMO processor  266 . The transceiver may be used by a processor (e.g., the controller/processor  280 ) and the memory  282  to perform aspects of any of the methods described herein (e.g., with reference to  FIGS. 4-7 ). 
     At the base station  110 , the uplink signals from UE  120  and/or other UEs may be received by the antennas  234 , processed by the modem  232  (e.g., a demodulator component, shown as DEMOD, of the modem  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 the UE  120 . The receive processor  238  may provide the decoded data to a data sink  239  and provide the decoded control information to the controller/processor  240 . The base station  110  may include a communication unit  244  and may communicate with the network controller  130  via the communication unit  244 . The base station  110  may include a scheduler  246  to schedule one or more UEs  120  for downlink and/or uplink communications. In some examples, the modem  232  of the base station  110  may include a modulator and a demodulator. In some examples, the base station  110  includes a transceiver. The transceiver may include any combination of the antenna(s)  234 , the modem(s)  232 , the MIMO detector  236 , the receive processor  238 , the transmit processor  220 , and/or the TX MIMO processor  230 . The transceiver may be used by a processor (e.g., the controller/processor  240 ) and the memory  242  to perform aspects of any of the methods described herein (e.g., with reference to  FIGS. 4-7 ). 
     The controller/processor  240  of the base station  110 , the controller/processor  280  of the UE  120 , and/or any other component(s) of  FIG. 2  may perform one or more techniques associated with configuration of an association between channels or reference signals and a TCI, as described in more detail elsewhere herein. For example, the controller/processor  240  of the base station  110 , the controller/processor  280  of the UE  120 , and/or any other component(s) of  FIG. 2  may perform or direct operations of, for example, process  500  of  FIG. 5  and/or other processes as described herein. The memory  242  and the memory  282  may store data and program codes for the base station  110  and the UE  120 , respectively. In some examples, the memory  242  and/or the memory  282  may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and/or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compiling, converting, and/or interpreting) by one or more processors of the base station  110  and/or the UE  120 , may cause the one or more processors, the UE  120 , and/or the base station  110  to perform or direct operations of, for example, process  500  of  FIG. 5  and/or other processes as described herein. In some examples, executing instructions may include running the instructions, converting the instructions, compiling the instructions, and/or interpreting the instructions, among other examples. 
     While blocks in  FIG. 2  are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components. For example, the functions described with respect to the transmit processor  264 , the receive processor  258 , and/or the TX MIMO processor  266  may be performed by or under the control of the controller/processor  280 . 
     In some aspects, the UE  120  includes means for receiving a TCI identifying a TCI state; means for associating the TCI state with one or more channels or reference signals based at least in part on a configured association; and/or means for communicating using the one or more channels or reference signals based at least in part on associating the TCI state with the one or more channels or reference signals. The means for the UE  120  to perform operations described herein may include, for example, one or more of communication manager  140 , antenna  252 , modem  254 , MIMO detector  256 , receive processor  258 , transmit processor  264 , TX MIMO processor  266 , controller/processor  280 , or memory  282 . 
     In some aspects, the base station  110  includes means for transmitting a TCI identifying a TCI state; and/or means for communicating using one or more channels or reference signals associated with the TCI state. The means for the base station  110  to perform operations described herein may include, for example, one or more of the communication manager  150 , antenna  234 , modem  232 , MIMO detector  236 , receive processor  238 , transmit processor  220 , TX MIMO processor  230 , controller/processor  240 , or memory  242 . 
     As indicated above,  FIG. 2  is provided as an example. Other examples may differ from what is described with regard to  FIG. 2 . 
       FIG. 3  is a diagram illustrating an example  300  of using beams for communications between a base station and a UE, in accordance with the present disclosure. As shown in  FIG. 3 , a base station  110  and a UE  120  may communicate with one another. 
     The base station  110  may transmit to UEs  120  located within a coverage area of the base station  110 . The base station  110  and the UE  120  may be configured for beamformed communications, where the base station  110  may transmit in the direction of the UE  120  using a directional BS transmit beam, and the UE  120  may receive the transmission using a directional UE receive beam. Each BS transmit beam may have an associated beam ID, beam direction, or beam symbols, among other examples. The base station  110  may transmit downlink communications via one or more BS transmit beams  305 . 
     The UE  120  may attempt to receive downlink transmissions via one or more UE receive beams  310 , which may be configured using different beamforming parameters at receive circuitry of the UE  120 . The UE  120  may identify a particular BS transmit beam  305 , shown as BS transmit beam  305 -A, and a particular UE receive beam  310 , shown as UE receive beam  310 -A, that provide relatively favorable performance (for example, that have a best channel quality of the different measured combinations of BS transmit beams  305  and UE receive beams  310 ). In some examples, the UE  120  may transmit an indication of which BS transmit beam  305  is identified by the UE  120  as a preferred BS transmit beam, which the base station  110  may select for transmissions to the UE  120 . The UE  120  may thus attain and maintain a beam pair link (BPL) with the base station  110  for downlink communications (for example, a combination of the BS transmit beam  305 -A and the UE receive beam  310 -A), which may be further refined and maintained in accordance with one or more established beam refinement procedures. 
     A downlink beam, such as a BS transmit beam  305  or a UE receive beam  310 , may be associated with a transmission configuration indication (TCI) state. A TCI state may indicate a directionality or a characteristic of the downlink beam, such as one or more quasi-co-location (QCL) properties of the downlink beam. A QCL property may include, for example, a Doppler shift, a Doppler spread, an average delay, a delay spread, or spatial receive parameters, among other examples. In some examples, each BS transmit beam  305  may be associated with a synchronization signal block (SSB), and the UE  120  may indicate a preferred BS transmit beam  305  by transmitting uplink transmissions in resources of the SSB that are associated with the preferred BS transmit beam  305 . A particular SSB may have an associated TCI state (for example, for an antenna port or for beamforming). The base station  110  may, in some examples, indicate a downlink BS transmit beam  305  based at least in part on antenna port QCL properties that may be indicated by the TCI state. A TCI state may be associated with one downlink reference signal set (for example, an SSB and an aperiodic, periodic, or semi-persistent channel state information reference signal (CSI-RS)) for different QCL types (for example, QCL types for different combinations of Doppler shift, Doppler spread, average delay, delay spread, or spatial receive parameters, among other examples). In cases where the QCL type indicates spatial receive parameters, the QCL type may correspond to analog receive beamforming parameters of a UE receive beam  310  at the UE  120 . Thus, the UE  120  may select a corresponding UE receive beam  310  from a set of BPLs based at least in part on the base station  110  indicating a BS transmit beam  305  via a TCI indication. 
     The base station  110  may maintain a set of activated TCI states for downlink shared channel transmissions and a set of activated TCI states for downlink control channel transmissions. The set of activated TCI states for downlink shared channel transmissions may correspond to beams that the base station  110  uses for downlink transmission on a physical downlink shared channel (PDSCH). The set of activated TCI states for downlink control channel communications may correspond to beams that the base station  110  may use for downlink transmission on a physical downlink control channel (PDCCH) or in a control resource set (CORESET). The UE  120  may also maintain a set of activated TCI states for receiving the downlink shared channel transmissions and the CORESET transmissions. If a TCI state is activated for the UE  120 , then the UE  120  may have one or more antenna configurations based at least in part on the TCI state, and the UE  120  may not need to reconfigure antennas or antenna weighting configurations. In some examples, the set of activated TCI states (for example, activated PDSCH TCI states and activated CORESET TCI states) for the UE  120  may be configured by a configuration message, such as a radio resource control (RRC) message. 
     Similarly, for uplink communications, the UE  120  may transmit in the direction of the base station  110  using a directional UE transmit beam, and the base station  110  may receive the transmission using a directional BS receive beam. Each UE transmit beam may have an associated beam ID, beam direction, or beam symbols, among other examples. The UE  120  may transmit uplink communications via one or more UE transmit beams  315 . 
     The base station  110  may receive uplink transmissions via one or more BS receive beams  320 . The base station  110  may identify a particular UE transmit beam  315 , shown as UE transmit beam  315 -A, and a particular BS receive beam  320 , shown as BS receive beam  320 -A, that provide relatively favorable performance (for example, that have a best channel quality of the different measured combinations of UE transmit beams  315  and BS receive beams  320 ). In some examples, the base station  110  may transmit an indication of which UE transmit beam  315  is identified by the base station  110  as a preferred UE transmit beam, which the base station  110  may select for transmissions from the UE  120 . The UE  120  and the base station  110  may thus attain and maintain a BPL for uplink communications (for example, a combination of the UE transmit beam  315 -A and the BS receive beam  320 -A), which may be further refined and maintained in accordance with one or more established beam refinement procedures. An uplink beam, such as a UE transmit beam  315  or a BS receive beam  320 , may be associated with a spatial relation. A spatial relation may indicate a directionality or a characteristic of the uplink beam, similar to one or more QCL properties, as described above. 
     As indicated above,  FIG. 3  is provided as an example. Other examples may differ from what is described with respect to  FIG. 3 . 
     As described above, UEs and BSs may use indications of relationships between beam parameters to enable configuration of communication. Examples of such relationships and indications thereof include QCL properties, spatial relationships, or TCI states, among other examples. 3GPP has discussed adding a new group of TCI states for 3GPP Release 17 and in, for example, “Moderator summary #2 for multi-beam enhancement” (3GPP Tdoc R1-2009499). A first new TCI state, of the new group of TCI states, is a joint downlink and uplink (DL/UL) common TCI state to indicate a common beam for at least one downlink channel or reference signal and at least one uplink channel or reference signal. A second new TCI state, of the new group of TCI states, is a separate common TCI state to indicate a common beam for at least two downlink channels or reference signals. A third new TCI state, of the new group of TCI states, is a separate uplink common TCI state to indicate a common beam for at least two uplink channels or reference signals. 
     Some aspects described herein enable configuration of an association between channels or reference signals with a common beam identified by a TCI, such as a TCI corresponding to one of the aforementioned new TCI states. For example, a UE may receive information explicitly or implicitly indicating at least one set of channels or reference signals to which a particular type of TCI state is to be applied. In this way, the UE may determine a configuration for a set of channels or reference signals when receiving a TCI, such as a TCI associated with one of the aforementioned new TCI states. Although some aspects are described herein in terms of a particular set of TCI states, other TCI states are contemplated. 
       FIG. 4  is a diagram illustrating an example  400  associated with configuring an association of channel reference signals with a common beam transmission configuration indicator, in accordance with the present disclosure. As shown in  FIG. 4 , example  400  includes communication between a base station  110  and a UE  120 . In some aspects, the base station  110  and the UE  120  may be included in a wireless network, such as wireless network  100 . The base station  110  and the UE  120  may communicate via a wireless access link, which may include an uplink and a downlink. 
     As further shown in  FIG. 4 , and by reference number  410 , UE  120  may receive an explicit or implicit indication of a set of channels or reference signals to which a particular type of TCI state is to be applied. For example, UE  120  may receive signaling from base station  110 , via a radio resource control (RRC) message, a medium access control (MAC) control element (CE), or a downlink control information (DCI) message, among other examples, to configure an association of channels or reference signals with, for example, a common beam type of TCI. 
     In some aspects, UE  120  may receive information indicating that the TCI state, to which the set of channels or reference signals is to be applied, is a particular type of TCI state. For example, the TCI state may include a first type of TCI state, termed a joint DL/UL common TCI state, that indicates a common beam (the same beam) for at least one downlink channel or reference signal and for at least one uplink channel or reference signal. Additionally, or alternatively, the TCI state may include a second type of TCI state, termed a separate downlink common TCI state, that indicates a common beam for at least two downlink channels or reference signals. Additionally, or alternatively, the TCI state may include a third type of TCI state, termed a separate uplink common TCI state, that indicates a common beam for at least two uplink channels or reference signals. Additionally, or alternatively, the TCI state may include a fourth type of TCI state, termed a separate downlink single channel or reference signal TCI state, that indicates a beam for a single downlink channel or reference signal. Additionally, or alternatively, the TCI state may include a fifth type of TCI state, termed a separate uplink single channel or reference signal TCI state, that indicates a beam for a single uplink channel or reference signal. Although some aspects are described in terms of a particular set of types of TCI states, aspects described herein may be used with other TCI states, QCL parameters, or spatial relations. 
     In some aspects, UE  120  may receive information indicating that the one or more channels or reference signals, that are to be associated with the TCI state, are a particular type of channels or reference signals. For example, the one or more channels or reference signals may include a UE-specific or non-UE-specific physical downlink control channel (PDCCH), physical downlink shared channel (PDSCH), physical uplink control channel (PUCCH), or physical uplink shared channel (PUSCH), among other examples. In some aspects, a type of scheduling of the one or more channels or reference signals may be based at least in part on a type of channel or reference signal. For example, UE  120  may receive dynamic scheduling (e.g., a DCI) or semi-static scheduling (e.g., configuration via RRC and activation via a DCI or MAC CE), among other examples, for a PDSCH, PUCCH, or PUSCH. When the channel is a PDSCH, scheduling offset between a DCI and the PDSCH may be greater than or equal to a beam switch latency threshold, in some cases, or less than the threshold in other cases. When the channel is a PDCCH, UE  120  may be configured to receive the PDCCH on all control resource sets (CORESETs) configured for UE  120  or on a subset of the CORESETs configured for UE  120 . 
     Additionally, or alternatively, the one or more channels or reference signals may include a persistent, semi-persistent, or aperiodic reference signal, such as a channel state information (CSI) reference signal (RS) (CSI-RS) or a paging reference signal (PRS), among other examples. For example, UE  120  may receive a TCI identifying a beam for a CSI-RS for CSI measurement and reporting, beam measurement and reporting, or tracking reference signal (TRS) measurement, among other examples. As another example, UE  120  may receive a TCI identifying a beam for a sounding reference signal (SRS) for antenna switching, beam management, codebook-based PUSCH, or non-codebook-based PUSCH, among other examples. Additionally, or alternatively, the one or more channels or reference signals may include a synchronization signal block (SSB). 
     In some aspects, UE  120  may receive information identifying an explicit association of a set of channels or reference signals to which a type of TCI state is to be applied. For example, UE  120  may receive a dedicated information element (IE) that includes information identifying a set identifier (set ID) and a type of channel or reference signal in an identified set. In this case, UE  120  may associate each identified set with at least one TCI type based at least in part on the received signaling. For example, UE  120  may receive RRC signaling statically configuring an association between a TCI type and a channel or reference signal set. In some aspects, UE  120  may receive the information identifying the association between the TCI type and the channel or reference signal set within the IE that included the information identifying the channel or reference signal set (e.g., the IE that included the set ID and the type of channel or reference signals that were to be associated with the set ID). In some aspects, the IE may include information identifying a plurality of types of TCIs that are applicable to a particular set of channels or reference signals. For example, UE  120  may parse the IE to identify a list of TCIs and may associate each TCI of the list of TCIs with the set of channels or reference signals identified by the IE. In this case, when base station  110  identifies a TCI state of a particular type of TCI that UE  120  is to use, UE  120  may apply the TCI state to the set of channels or reference signals associated with the TCI type. 
     Additionally, or alternatively, UE  120  may receive information configuring the association between a TCI type and a channel or reference signal set separate from the dedicated IE that configured the channel or reference signal set and/or separate from a TCI state IE. For example, UE  120  may receive a first IE configuring the channel or reference signal set and a second IE identifying one or more channel or reference signal sets (e.g., one or more set IDs) that are to be associated with a particular TCI type. In this case, the second IE may be a dedicated, new IE or a portion of an existing IE. For example, UE  120  may receive a bandwidth part downlink or uplink IE associated with configuring a TCI state pool, and may use information included in the bandwidth part downlink or uplink IE to associate a set ID with a particular TCI type. 
     Additionally, or alternatively, UE  120  may receive a TCI state IE including information configuring the association between a TCI type and a channel or reference signal set. For example, UE  120  may receive a TCI state IE for a particular TCI type and the TCI state IE may include one or more set IDs to which the particular TCI type is to be associated. In this way, UE  120  may associate a TCI type with a plurality of set IDs rather than a single set ID as may occur when the association is configured using a dedicated IE or a separate IE. 
     In some aspects, UE  120  may receive a MAC CE or DCI dynamically configuring an association between a TCI type and a set of channels or reference signals. For example, UE  120  may receive a MAC CE or DCI that includes information identifying one or more set IDs (corresponding to one or more sets of channels or reference signals) for each TCI type or one or more TCI types for each set ID. In this case, each TCI type may be associated with a single set ID. Additionally, or alternatively, UE  120  may receive a MAC CE identifying one or more set IDs for each TCI state identifier (state ID) or one or more TCI state IDs for each set ID. In this case, each TCI state ID may be associated with a single set ID, but a plurality of TCI state IDs may correspond to a single TCI type, resulting in each TCI type being able to be associated with a plurality of set IDs. 
     In some aspects, UE  120  may receive information explicitly configuring an association between a TCI type and a set of channels or reference signals without receiving a dedicated IE. For example, UE  120  may receive RRC signaling statically configuring an association between a TCI type and a set of channels or reference signals. In this case, the association is identified outside of the TCI state IE (e.g., using a separate IE, which identifies a set of channels or reference signals corresponding to a TCI type, such as a new IE or an existing IE for another purpose) or inside of the TCI state IE. Additionally, or alternatively, UE  120  may receive a MAC CE or DCI dynamically configuring an association between a TCI type and a set of channels or reference signals without using a dedicated IE (as described above). 
     In some aspects, UE  120  may receive information implicitly configuring an association between a TCI type and a set of channels or reference signals. For example, BS  110  may transmit information identifying a TCI state or type that is to be applied to a particular channel or reference signal, and UE  120  may apply the TCI state or type to each channel or reference signal in a configured set of channels or reference signals that includes the particular channel or reference signal. In other words, if a set ID applies to a first channel, second channel, and third channel, and UE  120  receives signaling indicating that a TCI type is to apply to the second channel, UE  120  may apply the TCI type to each of the first channel, the second channel, and the third channel based at least in part on the first channel, the second channel, and the third channel having a common set ID. In contrast, if the particular channel or reference signal is not included in any configured set of channels or reference signals, UE  120  may apply the TCI type or state only to the particular channel or reference signal. 
     Additionally, or alternatively, when operating in a multiple transmit-receive-point (TRP) deployment, UE  120  may determine an implicit association between a TCI type and a set of channels or reference signals, which may be scheduled or activated using CORESETs associated with a TRP, based at least in part on information identifying the TRP. For example, base station  110  may transmit information indicating that a TCI state or type is to be applied to a TRP identified by a particular TRP identifier (TRP ID) and UE  120  may apply the TCI state or type to each channel or reference signal associated with the TRP ID. In other words, a TRP may have a group of channels or reference signals associated with the TRP, and UE  120  may apply the TCI type to each channel or reference signal of the group of channels or reference signals. Similarly, base station  110  may transmit information identifying a TCI state or type that is to be applied to a channel or reference signal that is configured to be scheduled or activated by a CORESET associated with a particular TRP ID, and UE  120  may apply the TCI state or type to each channel or reference signal associated with the particular TRP ID. For example, when a TRP is associated with a first channel and a second channel and base station  110  indicates that a TCI type is to be applied to the first channel, which is scheduled or activated by a CORESET associated with the TRP, UE  120  may apply the TCI type to both the first channel and the second channel as well. 
     Additionally, or alternatively, UE  120  may determine an implicit association between a TCI type and one or more channels or reference signals based at least in part on a fixed association rule, which may be defined by a specification, a standard, a firmware rule, or a software rule, among other examples. For example, UE  120  may be configured with a rule specifying that each separate downlink common TCI state is applicable to a UE-specific PDCCH, a UE-specific PDSCH, a CSI-RS for CSI measurement or reporting, and a CSI-RS for TRS measurement. In this case, when UE  120  receives signaling configuring the TCI state for the UE-specific PDCCH, UE  120  may apply the TCI state to the UE-specific PDSCH, the CSI-RS for CSI measurement or reporting, and the CSI-RS for TRS measurement. As another example, UE  120  may be configured with a rule that a separate uplink common TCI state is applicable to a UE-specific PUCCH, a UE-specific PUSCH, an SRS for antenna switching, an SRS for codebook based PUSCH, and an SRS for non-codebook based PUSCH. As another example, UE  120  may be configured with a rule specifying that a joint downlink and uplink common TCI state is applicable to each of the aforementioned channels or reference signals to which the separate downlink common TCI state and the separate uplink common TCI state are applicable. In some cases, a TCI state may be applicable to both a UE-dedicated PDSCH or PDCCH and a non-UE dedicated PDCCH or PDSCH that is configured by RRC signaling. Similarly, an SRS for beam management, antenna switching, codebook based transmission, or non-codebook based transmission may share a TCI state with a dynamic grant or configured grant PUSCH configured via RRC. 
     In some aspects, UE  120  may be configured to use a plurality of different techniques for implicit association of TCI types to channels or reference signals. For example, UE  120  may be configured for implicit association via an indication of a TCI state or type, indication of a TRP, or application of a fixed rule, among other examples. In some aspects, UE  120  may receive explicit signaling indicating which implicit association technique to use. For example, UE  120  may receive RRC signaling including a flag or other indicator identifying an option for implicit association. Additionally, or alternatively, UE  120  may implicitly determine the option for implicit association based at least in part on a configuration of an RRC IE. For example, when the IE is configured to identify a channel or reference signal, UE  120  may determine that UE  120  is to perform implicit association by indication of a TCI state or type. Similarly, when the IE is configured to include a plurality of TRP IDs, UE  120  may determine that to perform implicit association by indication of a TRP. Other configurations for implicitly identifying a type of implicit association are contemplated. 
     As further shown in  FIG. 4 , and by reference number  420 , UE  120  may configure an association between a channel or reference signal and a TCI state. For example, as described above, UE  120  may configure an association based on an explicit indication or an implicit indication, among other examples. In this case, as shown by reference number  430 , UE  120  may communicate in accordance with the association between the channel or reference signal and the TCI state. For example, when UE  120  receives a TCI, UE  120  may configure a set of channels or reference signals based at least in part on the TCI state and the association between the set of channels or reference signals and the TCI state. In this case, when UE  120  communicates with base station  110  (e.g., on an uplink or downlink using at least one of the set of channels or reference signals), UE  120  may use, for example, a beam identified based at least in part on the TCI state. 
     As indicated above,  FIG. 4  is provided as an example. Other examples may differ from what is described with respect to  FIG. 4 . 
       FIG. 5  is a diagram illustrating an example process  500  performed, for example, by a UE, in accordance with the present disclosure. Example process  500  is an example where the UE (e.g., UE  120 ) performs operations associated with association of channel reference signals with a common beam transmission configuration indicator. 
     As shown in  FIG. 5 , in some aspects, process  500  may include receiving a TCI identifying a TCI state (block  510 ). For example, the UE (e.g., using reception component  602 , depicted in  FIG. 6 ) may receive a TCI identifying a TCI state, as described above. 
     As further shown in  FIG. 5 , in some aspects, process  500  may include associating the TCI state with one or more channels or reference signals based at least in part on a configured association (block  520 ). For example, the UE (e.g., using association component  608 , depicted in  FIG. 6 ) may associate the TCI state with one or more channels or reference signals based at least in part on a configured association, as described above. 
     As further shown in  FIG. 5 , in some aspects, process  500  may include communicating using the one or more channels or reference signals based at least in part on associating the TCI state with the one or more channels or reference signals (block  530 ). For example, the UE (e.g., using reception component  602  and/or transmission component  604 , depicted in  FIG. 6 ) may communicate using the one or more channels or reference signals based at least in part on associating the TCI state with the one or more channels or reference signals, as described above. 
     Process  500  may 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. 
     In a first aspect, the TCI state is associated with a particular type, and the type is one of a first type identifying a common beam for a downlink channel or reference signal and an uplink channel or reference signal, a second type identifying a common beam for a plurality of downlink channels or reference signals, a third type identifying a common beam for a plurality of uplink channels or reference signals, a fourth type identifying a beam for a single downlink channel or reference signal, or a fifth type identifying a beam for a single uplink channel or reference signal. 
     In a second aspect, alone or in combination with the first aspect, the one or more channels or reference signals include at least one of a physical downlink control channel, a physical downlink shared channel, a physical uplink control channel, a physical uplink shared channel, a synchronization signal block, a channel state information reference signal, a paging reference signal, or a sounding reference signal. 
     In a third aspect, alone or in combination with one or more of the first and second aspects, the configured association is an explicit association. 
     In a fourth aspect, alone or in combination with one or more of the first through third aspects, process  500  includes receiving radio resource control signaling including a dedicated information element identifying the one or more channels or reference signals, and determining the configured association based at least in part on the at least one of the one or more channels or reference signals on the dedicated information element. 
     In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the information element is included in the one or more channels or reference signals. 
     In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the information element is included in another one or more channels or reference signals that is different from the one or more channels or reference signals. 
     In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the information element is included in the TCI state. 
     In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the configured association corresponds to a TCI type or a TCI state. 
     In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, process  500  includes receiving a medium access control (MAC) control element (CE) or downlink control information (DCI) including an information element identifying the one or more channels or reference signals, and determining the configured association based at least in part on the MAC CE or DCI. 
     In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the DCI includes information scheduling another transmission. 
     In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, process  500  includes receiving signaling including a non-dedicated information element associated with identifying the configured association, wherein the signaling is radio resource control signaling, medium access control control element signaling, or downlink control information signaling. 
     In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, the non-dedicated information element is conveyed outside of a TCI state information element or inside of the TCI state information element. 
     In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, the configured association is an implicit association. 
     In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, associating the TCI state with the one or more channels or reference signals comprises associating the TCI state with all channels or reference signals that include a channel or reference signal to which the TCI state is applied. 
     In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, associating the TCI state with the one or more channels or reference signals comprises determining that a channel or reference signal to which the TCI state is applied is not included in a set of channels or reference signals, and associating the TCI state with only the channel or reference signal based at least in part on determining that the channel or reference signal is not included in a set of channels or reference signals. 
     In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, associating the TCI state with the one or more channels or reference signals comprises associating the TCI state with all channels or reference signals associated with a transmit receive point (TRP) to which the TCI state is applied. 
     In a seventeenth aspect, alone or in combination with one or more of the first through sixteenth aspects, associating the TCI state with the one or more channels or reference signals comprises associating the TCI state with all channels or reference signals scheduled or activated by a control resource set associated with a TRP to which the TCI state is applied. 
     In an eighteenth aspect, alone or in combination with one or more of the first through seventeenth aspects, the implicit association is fixed in a standard. 
     In a nineteenth aspect, alone or in combination with one or more of the first through eighteenth aspects, process  500  includes receiving signaling identifying a setting for the implicit association, and associating the TCI state with the one or more channels or reference signals comprises associating the TCI state with the one or more channels or reference signals based at least in part on the setting for the TCI state. 
     In a twentieth aspect, alone or in combination with one or more of the first through nineteenth aspects, process  500  includes determining a configuration of a radio resource control information element, and determining a setting for the implicit association based at least in part on the configuration of the radio resource control information element. 
     Although  FIG. 5  shows example blocks of process  500 , in some aspects, process  500  may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in  FIG. 5 . Additionally, or alternatively, two or more of the blocks of process  500  may be performed in parallel. 
       FIG. 6  is a block diagram of an example apparatus  600  for wireless communication. The apparatus  600  may be a UE, or a UE may include the apparatus  600 . In some aspects, the apparatus  600  includes a reception component  602  and a transmission component  604 , which may be in communication with one another (for example, via one or more buses and/or one or more other components). As shown, the apparatus  600  may communicate with another apparatus  606  (such as a UE, a base station, or another wireless communication device) using the reception component  602  and the transmission component  604 . As further shown, the apparatus  600  may include one or more of an association component  608  or a determination component  610 , among other examples. 
     In some aspects, the apparatus  600  may be configured to perform one or more operations described herein in connection with  FIG. 4 . Additionally, or alternatively, the apparatus  600  may be configured to perform one or more processes described herein, such as process  500  of  FIG. 5 . In some aspects, the apparatus  600  and/or one or more components shown in  FIG. 6  may include one or more components of the UE described above in connection with  FIG. 2 . Additionally, or alternatively, one or more components shown in  FIG. 6  may be implemented within one or more components described above in connection with  FIG. 2 . Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component. 
     The reception component  602  may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus  606 . The reception component  602  may provide received communications to one or more other components of the apparatus  600 . In some aspects, the reception component  602  may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples), and may provide the processed signals to the one or more other components of the apparatus  606 . In some aspects, the reception component  602  may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with  FIG. 2 . 
     The transmission component  604  may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus  606 . In some aspects, one or more other components of the apparatus  606  may generate communications and may provide the generated communications to the transmission component  604  for transmission to the apparatus  606 . In some aspects, the transmission component  604  may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples), and may transmit the processed signals to the apparatus  606 . In some aspects, the transmission component  604  may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with  FIG. 2 . In some aspects, the transmission component  604  may be co-located with the reception component  602  in a transceiver. 
     The reception component  602  may receive a TCI identifying a TCI state. The association component  608  may associate the TCI state with one or more channels or reference signals based at least in part on a configured association. The reception component  602  or the transmission component  604  may communicate using the one or more channels or reference signals based at least in part on associating the TCI state with the one or more channels or reference signals. 
     The reception component  602  may receive radio resource control signaling including a dedicated information element identifying the one or more channels or reference signals. 
     The determination component  610  may determine the configured association based at least in part on the at least one of the one or more channels or reference signals on the dedicated information element. 
     The reception component  602  may receive a MAC CE or DCI including an information element identifying the one or more channels or reference signals. 
     The determination component  610  may determine the configured association based at least in part on the MAC CE or DCI. 
     The reception component  602  may receive signaling including a non-dedicated information element associated with identifying the configured association, wherein the signaling is radio resource control signaling, MAC CE signaling, or DCI signaling. 
     The reception component  602  may receive signaling identifying a setting for the implicit association. 
     The determination component  610  may determine a configuration of a radio resource control information element. 
     The determination component  610  may determine a setting for the implicit association based at least in part on the configuration of the radio resource control information element. 
     The number and arrangement of components shown in  FIG. 6  are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in  FIG. 6 . Furthermore, two or more components shown in  FIG. 6  may be implemented within a single component, or a single component shown in  FIG. 6  may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in  FIG. 6  may perform one or more functions described as being performed by another set of components shown in  FIG. 6 . 
       FIG. 7  is a block diagram of an example apparatus  700  for wireless communication. The apparatus  700  may be a base station, or a base station may include the apparatus  700 . In some aspects, the apparatus  700  includes a reception component  702  and a transmission component  704 , which may be in communication with one another (for example, via one or more buses and/or one or more other components). As shown, the apparatus  700  may communicate with another apparatus  706  (such as a UE, a base station, or another wireless communication device) using the reception component  702  and the transmission component  704 . As further shown, the apparatus  700  may include a configuration component  708 , among other examples. 
     In some aspects, the apparatus  700  may be configured to perform one or more operations described herein in connection with  FIG. 4 . Additionally, or alternatively, the apparatus  700  may be configured to perform one or more processes described herein. In some aspects, the apparatus  700  and/or one or more components shown in  FIG. 7  may include one or more components of the base station described above in connection with  FIG. 2 . Additionally, or alternatively, one or more components shown in  FIG. 7  may be implemented within one or more components described above in connection with  FIG. 2 . Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component. 
     The reception component  702  may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus  706 . The reception component  702  may provide received communications to one or more other components of the apparatus  700 . In some aspects, the reception component  702  may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples), and may provide the processed signals to the one or more other components of the apparatus  706 . In some aspects, the reception component  702  may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the BS described above in connection with  FIG. 2 . 
     The transmission component  704  may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus  706 . In some aspects, one or more other components of the apparatus  706  may generate communications and may provide the generated communications to the transmission component  704  for transmission to the apparatus  706 . In some aspects, the transmission component  704  may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples), and may transmit the processed signals to the apparatus  706 . In some aspects, the transmission component  704  may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the BS described above in connection with  FIG. 2 . In some aspects, the transmission component  704  may be co-located with the reception component  702  in a transceiver. 
     The configuration component  708  may configure the apparatus  706  with an association between a TCI type and one or more channels or reference signals, as described above. 
     The number and arrangement of components shown in  FIG. 7  are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in  FIG. 7 . Furthermore, two or more components shown in  FIG. 7  may be implemented within a single component, or a single component shown in  FIG. 7  may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in  FIG. 7  may perform one or more functions described as being performed by another set of components shown in  FIG. 7 . 
     The following provides an overview of some aspects of the present disclosure: 
     Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising: receiving a transmission configuration indicator (TCI) identifying a TCI state; associating the TCI state with one or more channels or reference signals based at least in part on a configured association; and communicating using the one or more channels or reference signals based at least in part on associating the TCI state with the one or more channels or reference signals. 
     Aspect 2: The method of aspect 1, wherein the TCI state is associated with a particular type, and wherein the type is one of: a first type identifying a common beam for a downlink channel or reference signal and an uplink channel or reference signal, a second type identifying a common beam for a plurality of downlink channels or reference signals, a third type identifying a common beam for a plurality of uplink channels or reference signals, a fourth type identifying a beam for a single downlink channel or reference signal, or a fifth type identifying a beam for a single uplink channel or reference signal. 
     Aspect 3: The method of any of aspects 1 to 2, wherein the one or more channels or reference signals include at least one of: a physical downlink control channel, a physical downlink shared channel, a physical uplink control channel, a physical uplink shared channel, a synchronization signal block, a channel state information reference signal, a paging reference signal, or a sounding reference signal. 
     Aspect 4: The method of any of aspects 1 to 3, wherein the configured association is an explicit association. 
     Aspect 5: The method of aspect 4, further comprising: receiving radio resource control signaling including a dedicated information element identifying the one or more channels or reference signals; and determining the configured association based at least in part on the at least one of the one or more channels or reference signals on the dedicated information element. 
     Aspect 6: The method of aspect 5, wherein the information element is included in the one or more channels or reference signals. 
     Aspect 7: The method of any of aspects 5 to 6, wherein the information element is included in another one or more channels or reference signals that is different from the one or more channels or reference signals. 
     Aspect 8: The method of any of aspects 5 to 7, wherein the information element is included in the TCI state. 
     Aspect 9: The method of any of aspects 1 to 8, wherein the configured association corresponds to a TCI type or a TCI state. 
     Aspect 10: The method of any of aspects 1 to 9, further comprising: receiving a medium access control (MAC) control element (CE) or downlink control information (DCI) including an information element identifying the one or more channels or reference signals; and determining the configured association based at least in part on the MAC CE or DCI. 
     Aspect 11: The method of aspect 10, wherein the DCI includes information scheduling another transmission. 
     Aspect 12: The method of any of aspects 1 to 11, further comprising: receiving signaling including a non-dedicated information element associated with identifying the configured association, wherein the signaling is radio resource control signaling, medium access control control element signaling, or downlink control information signaling. 
     Aspect 13: The method of aspect 12, wherein the non-dedicated information element is conveyed outside of a TCI state information element or inside of the TCI state information element. 
     Aspect 14: The method of any of aspects 1 to 13, wherein the configured association is an implicit association. 
     Aspect 15: The method of aspect 14, wherein associating the TCI state with the one or more channels or reference signals comprises: associating the TCI state with all channels or reference signals that include a channel or reference signal to which the TCI state is applied. 
     Aspect 16: The method of any of aspects 14 to 15, wherein associating the TCI state with the one or more channels or reference signals comprises: determining that a channel or reference signal to which the TCI state is applied is not included in a set of channels or reference signals; and associating the TCI state with only the channel or reference signal based at least in part on determining that the channel or reference signal is not included in a set of channels or reference signals. 
     Aspect 17: The method of any of aspects 14 to 16, wherein associating the TCI state with the one or more channels or reference signals comprises: associating the TCI state with all channels or reference signals associated with a transmit receive point (TRP) to which the TCI state is applied. 
     Aspect 18: The method of any of aspects 14 to 17, wherein associating the TCI state with the one or more channels or reference signals comprises: associating the TCI state with all channels or reference signals scheduled or activated by a control resource set associated with a transmit receive point (TRP) to which the TCI state is applied. 
     Aspect 19: The method of any of aspects 14 to 18, wherein the implicit association is fixed in a standard. 
     Aspect 20: The method of any of aspects 14 to 19, further comprising: receiving signaling identifying a setting for the implicit association; and wherein associating the TCI state with the one or more channels or reference signals comprises: associating the TCI state with the one or more channels or reference signals based at least in part on the setting for the TCI state. wherein associating the TCI state with the one or more channels or reference signals comprises: associating the TCI state with the one or more channels or reference signals based at least in part on the setting for the TCI state. 
     Aspect 21: The method of any of aspects 1 to 20, further comprising: determining a configuration of a radio resource control information element; and determining a setting for the implicit association based at least in part on the configuration of the radio resource control information element. 
     Aspect 22: 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 1-21. 
     Aspect 23: A device for wireless communication, comprising a 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 1-21. 
     Aspect 24: An apparatus for wireless communication, comprising at least one means for performing the method of one or more aspects of aspects 1-21. 
     Aspect 25: 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 1-21. 
     Aspect 26: 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 1-21. 
     The foregoing disclosure provides illustration and description but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects. 
     As used herein, the term “component” is intended to be broadly construed as hardware and/or a combination of hardware and software. “Software” shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and/or functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. As used herein, a “processor” is implemented in hardware and/or a combination of hardware and software. It will be apparent that systems and/or methods described herein may be implemented in different forms of hardware 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 are described herein without reference to specific software code, since those skilled in the art will understand that software and hardware can be designed to implement the systems and/or methods based, at least in part, on the description herein. 
     As used herein, “satisfying a threshold” may, depending on the context, 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, or the like. 
     Even though particular combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combined in ways not specifically recited in the claims and/or disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set. As used herein, 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 with 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). 
     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 may be used interchangeably with “one or more.” Further, as used herein, the article “the” is intended to include one or more items referenced in connection with the article “the” and may be used interchangeably with “the one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and may 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 that do not limit an element that they modify (e.g., an element “having” A may also have B). Further, the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise. Also, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and/or,” unless explicitly stated otherwise (e.g., if used in combination with “either” or “only one of”).