Beam configuration activation and deactivation under multiple transmit / receive point (TRP) operation

Abstract

The present disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for TCI state activation and deactivation under multiple transmission / reception point (TRP) operation. In some aspects, the number of activated transmission configuration indicator (TCI) states and the TCI state type may be indicated using a single code point. In some implementations, the code point may include multiple TCI states. Each TCI state identifier in the code point may correspond to a TCI state type, such as uplink, downlink, or both. In some implementations, a base station (BS) may configure two separate TCI state lists, one for the downlink and one for the uplink. Each code point may include an indication of one of the two configured lists with which the TCI state identifier is associated. In some implementations, the BS may configure two bitmaps, a first bitmap corresponding to the downlink TCI states and a second bitmap corresponding to the uplink TCI states.

Description

[Technical Field]

[0001]

[0001] The present disclosure relates to wireless communications, including beam configuration activation and deactivation under multiple transmitting and receiving point operation. [Background technology]

[0002] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasts, and so on. These systems may be capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include fourth-generation (4G) systems, such as Long Term Evolution (LTE), LTE-Advanced (LTE-A), or LTE-A Pro systems, and fifth-generation (5G) systems, sometimes referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple-access communication system may include one or more base stations (BSs) or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, sometimes known as User Equipment (UE). A UE may communicate with a base station using one or more beam configurations. Summary of the Invention

[0003]

[0003] The systems, methods, and devices of the present disclosure each have several innovative aspects, no single aspect of which is solely responsible for the desirable properties disclosed herein.

[0004] One innovative aspect of the subject matter described in this disclosure may be embodied in a method for wireless communication in a user equipment (UE). The method may include receiving control signaling from a network entity identifying a set of transmission configuration indicator (TCI) states, each TCI state of the set of TCI states being associated with a TCI state type; receiving a media access control (MAC) control element (CE) message from the network entity, the MAC control element (CE) message including a set of code points, each code point of the set of code points activating one or more TCI states of the set of TCI states and indicating a TCI state type for the one or more TCI states; receiving a DCI message from the network entity, the DCI message including a grant of resources for communicating with at least a first transmission / reception point (TRP) associated with the network entity and an indication of at least one TCI state of the one or more TCI states; and communicating with the at least the first TRP according to the at least one TCI state.

[0005] Another inventive aspect of the subject matter described in this disclosure may be embodied in an apparatus for wireless communication in a UE. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: receive control signaling from a network entity identifying a set of TCI states, each TCI state of the set of TCI states being associated with a TCI state type; receive from the network entity a MAC CE message including a set of code points, each code point of the set of code points activating one or more TCI states of the set of TCI states and indicating a TCI state type for the one or more TCI states; receive from the network entity a DCI message including a grant of resources for communicating with at least a first TRP associated with the network entity and an indication of at least one TCI state of the one or more TCI states; and communicate with the at least first TRP in accordance with the at least one TCI state.

[0006] Another inventive aspect of the subject matter described in this disclosure may be embodied in an apparatus for wireless communication in a UE. The apparatus may include: means for receiving, from a network entity, control signaling identifying a set of TCI states, each TCI state of the set of TCI states being associated with a TCI state type; means for receiving, from the network entity, a MAC CE message including a set of code points, each code point of the set of code points activating one or more TCI states of the set of TCI states and indicating a TCI state type for the one or more TCI states; means for receiving, from the network entity, a DCI message including a grant of resources for communicating with at least a first TRP associated with the network entity and an indication of at least one TCI state of the one or more TCI states; and means for communicating with the at least first TRP according to the at least one TCI state.

[0007] Another inventive aspect of the subject matter described in this disclosure may be embodied in a non-transitory computer-readable medium storing code for wireless communication in a UE. The code may include instructions executable by a processor to receive, from a network entity, control signaling identifying a set of TCI states, the control signaling identifying the set of TCI states, where each TCI state in the set of TCI states is associated with a TCI state type; receive, from the network entity, a MAC CE message including a set of code points, each code point in the set of code points activating one or more TCI states in the set of TCI states and indicating a TCI state type for the one or more TCI states; receive, from the network entity, a DCI message including a grant of resources for communicating with at least a first TRP associated with the network entity and an indication of at least one TCI state of the one or more TCI states; and communicate with the at least first TRP in accordance with the at least one TCI state.

[0008]

[0008] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving a MAC-CE may include an operation, feature, means, or instruction of receiving a set of code points in the MAC-CE, each code point including a first bit that indicates whether the code point indicates a single TCI state or a pair of TCI states.

[0009]

[0009] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving control signaling identifying a set of TCI states may include an act, feature, means, or instruction of receiving control signaling including an indication of a first subset of the set of TCI states associated with a TCI state type that includes uplink and an indication of a second subset of the set of TCI states associated with a TCI state type that includes downlink.

[0010]

[0010] In embodiments of the methods, apparatus, and non-transitory computer-readable media described herein, receiving a MAC-CE may include operations, features, means, or instructions for receiving, in the MAC-CE, a first bitmap associated with a first subset of the set of TCI states, and receiving, in the MAC-CE, a second bitmap associated with a second subset of the set of TCI states.

[0011] Another innovative aspect of the subject matter described in this disclosure may be embodied in a method for wireless communications. The method may include: transmitting control signaling to a UE identifying a set of TCI states, each TCI state in the set of TCI states being associated with a TCI state type; transmitting a MAC CE message to the UE including a set of code points, each code point in the set of code points activating one or more TCI states in the set of TCI states and indicating a TCI state type for the one or more TCI states; and transmitting a downlink control information message to the UE including a grant of resources for communicating with at least a first transmission / reception point associated with a network entity and an indication of at least one TCI state of the one or more TCI states.

[0012] Another innovative aspect of the subject matter described in this disclosure may be embodied in an apparatus for wireless communications. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: transmit control signaling to a UE identifying a set of TCI states, each TCI state in the set of TCI states being associated with a TCI state type; transmit a MAC CE message to the UE including a set of code points, each code point in the set of code points activating one or more TCI states in the set of TCI states and indicating a TCI state type for the one or more TCI states; and transmit a downlink control information message to the UE including a grant of resources for communicating with at least a first transmission / reception point associated with a network entity and an indication of at least one TCI state of the one or more TCI states.

[0013] Another innovative aspect of the subject matter described in this disclosure may be embodied in an apparatus for wireless communications. The apparatus may include means for transmitting control signaling to a UE identifying a set of TCI states, each TCI state in the set of TCI states being associated with a TCI state type, means for transmitting a MAC CE message to the UE including a set of code points, each code point in the set of code points activating one or more TCI states in the set of TCI states and indicating a TCI state type for the one or more TCI states, and means for transmitting a downlink control information message to the UE including a grant of resources for communicating with at least a first transmission / reception point associated with a network entity and an indication of at least one TCI state of the one or more TCI states.

[0014] Another innovative aspect of the subject matter described in this disclosure may be embodied in a non-transitory computer-readable medium storing code for wireless communications. The code may include instructions executable by a processor to: send control signaling to a UE identifying a set of TCI states, each TCI state in the set of TCI states being associated with a TCI state type; send a MAC CE message to the UE including a set of code points, each code point in the set of code points activating one or more TCI states in the set of TCI states and indicating a TCI state type for the one or more TCI states; and send a downlink control information message to the UE including a grant of resources for communicating with at least a first transmission / reception point associated with a network entity and an indication of at least one TCI state of the one or more TCI states.

[0015]

[0015] The details of one or more implementations of the subject matter described in this disclosure are set forth in the accompanying drawings and the description below. Other features, aspects, and advantages will become apparent from the description, drawings, and claims. Please note that the relative dimensions of the following figures may not be drawn to scale. [Brief explanation of the drawings]

[0016] [Figure 1]

[0016] An example of a wireless communication system that supports beam configuration activation and deactivation under multiple transmit / receive point (TRP) operation is shown. [Figure 2]

[0017] 1 illustrates an example signaling diagram supporting beam configuration activation and deactivation under multiple transmitting and receiving point operation. [Figure 3]

[0018] 1 illustrates an example of a medium access control-control element (MAC-CE) that supports beam configuration activation and deactivation under multiple transmitting and receiving point operation. [Figure 4]

[0019] 1 illustrates an example of a MAC-CE supporting beam configuration activation and deactivation under multiple transmitting and receiving point operation. [Figure 5]

[0020] 1 illustrates an example of a MAC-CE supporting beam configuration activation and deactivation under multiple transmitting and receiving point operation. [Figure 6]

[0021] 1 illustrates an example process flow supporting beam configuration activation and deactivation under multiple transmit and receive point operation. [Figure 7]

[0022] FIG. 1 illustrates a diagram of an exemplary system comprising devices supporting beam configuration activation and deactivation under multiple transmit and receive point operation. [Figure 8]

[0023] FIG. 1 illustrates a diagram of an exemplary system comprising devices supporting beam configuration activation and deactivation under multiple transmit and receive point operation. [Figure 9]

[0024] 1 illustrates an exemplary flowchart illustrating a method for supporting beam configuration activation and deactivation under multiple transmitting and receiving point operation. [Figure 10] 1 illustrates an exemplary flowchart illustrating a method for supporting beam configuration activation and deactivation under multiple transmitting and receiving point operation.

[0017]

[0025] Like reference numbers and designations in the various drawings indicate like elements. DETAILED DESCRIPTION OF THE INVENTION

[0018]

[0026] The following description is directed to several implementations for purposes of describing inventive aspects of the present disclosure. However, those skilled in the art will readily recognize that the teachings herein can be applied in many different ways. The described implementations are based on any of the Institute of Electrical and Electronics Engineers (IEEE) 16.11 standards, or any of the IEEE 802.11 standards, the Bluetooth standard, Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Global System for Mobile Communications (GSM), GSM / General Packet Radio Service (GPRS), Enhanced Data GSM Environment (EDGE), Terrestrial Based Radio (TETRA), Wideband CDMA (W-CDMA), Evolution Data Optimized (EV-DO), 1xEV-DO, EV-DO Rev A, EV-DO Rev B, EV-DO Rev C, EV-DO Rev D, EV-DO Rev E, EV-DO Rev F, EV-DO Rev H, EV-DO Rev I ... B. may be implemented in any device, system, or network capable of transmitting and receiving radio frequency (RF) signals from High Speed ​​Packet Access (HSPA), High Speed ​​Downlink Packet Access (HSDPA), High Speed ​​Uplink Packet Access (HSUPA), Evolved High Speed ​​Packet Access (HSPA+), Long Term Evolution (LTE), AMPS, or other known signals used to communicate within wireless, cellular, or Internet of Things (IoT) networks, such as systems utilizing 3G, 4G, or 5G technologies or further implementations thereof.

[0019]

[0027] Implementations described herein provide techniques for indicating the number of activated TCI states and the type of the TCI state using a single code point. In some implementations, the code point may include one or two TCI states, and each individual TCI state identifier within the code point may correspond to a TCI state type, such as uplink, downlink, or both. For example, implementations provide one TCI state or multiple TCI states mapped to a single TCI code point, where the single TCI code point also indicates the TCI state type for each of the activated TCI states. In some implementations, a base station (BS) can configure two separate TCI state lists, one for downlink TCI states and one for uplink TCI states. Each code point may include one or more TCI state identifiers and an indication of one of the two configured lists with which the TCI state identifier is associated. In some implementations, the BS can configure two bitmaps, a first bitmap corresponding to downlink TCI states and a second bitmap corresponding to uplink TCI states. Each codepoint in the MAC-CE that activates one or more TCI states may include one bit from a first bitmap, such as to indicate a UL TCI state in the pair of TCI states, and one bit from a second bitmap, such as to indicate a DL TCI state in the pair of TCI states. In some implementations, such as when an odd number of bits are activated in the two bitmaps, the last remaining bit may indicate a single TCI state, such as uplink or downlink.

[0020]

[0028] Specific implementations of the subject matter described in this disclosure may be implemented to achieve one or more of the following potential advantages. For example, a single TCI code point can be mapped to two TCI states and indicated by a TCI state type. By indicating the TCI state type corresponding to the mapped TCI state in a single code point, signaling overhead can be reduced. Furthermore, the described techniques can support increased flexibility for UEs because a base station may be able to activate more TCI states of different types (such as joint or separate TCI states and unified TCI states) without a corresponding increase in signaling. This can result in more efficient use of spatial resources and reduced collisions and interference without introducing signaling delays and increased system latency. Therefore, the described techniques can improve communication reliability and user experience. A single TCI code point mapped with one or two TCI states of different TCI state types can be applied in both a single DCI-scheduled multiple transmission / reception point (M-TRP) transmission or multiple DCI-scheduled M-TRP transmissions. Thus, the described techniques can make more efficient use of spatial resources, reduce interference, and avoid corresponding increases in signaling delays and system latency. Furthermore, the described techniques can support flexible and efficient indication of TCI states that support M-TRP communication, resulting in more efficient and reliable communication and reduced signaling overhead.

[0021]

[0029] 1 illustrates an example of a wireless communication system 100 that supports beam configuration activation and deactivation under multiple transmitting and receiving point operation. The wireless communication system 100 may include one or more BSs 105, one or more UEs 115, and a core network 130I. In some implementations, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some implementations, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, communications with low-cost and low-complexity devices, or any combination thereof.

[0022]

[0030] The BSs 105 may be dispersed throughout a geographic area to form the wireless communication system 100 and may be devices of different types or with different capabilities. The BSs 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each BS 105 may provide a coverage area 110 within which the UEs 115 and the BSs 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area within which the BSs 105 and the UEs 115 may support communication of signals via one or more radio access technologies.

[0023]

[0031] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile or both at different times. The UEs 115 may be devices of different forms or with different capabilities. Some example UEs 115 are shown in FIG. 1. The UEs 115 described herein may be able to communicate with various types of devices, such as other UEs 115, BSs 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment), as shown in FIG. 1.

[0024]

[0032] The BSs 105 may communicate with the core network 130, with each other, or both. For example, the BSs 105 may interface with the core network 130 through one or more backhaul links 120 (e.g., via an S1, N2, N3, or another interface). The BSs 105 may communicate with each other over the backhaul links 120 (e.g., via an X2, Xn, or another interface) either directly (e.g., directly between the BSs 105) or indirectly (e.g., via the core network 130), or both. In some implementations, the backhaul links 120 may be or include one or more wireless links.

[0025]

[0033] One or more of the BSs 105 described herein may include, or be referred to by those skilled in the art as, a base transceiver station, a wireless BS, an access point, a wireless transceiver, a NodeB, an eNodeB (eNB), a next generation NodeB or giga-NodeB (any of which may be referred to as a gNB), a Home NodeB, a Home eNodeB, or other suitable terminology.

[0026]

[0034] The UE 115 may include or be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, and a “device” may also be referred to as a unit, a station, a terminal, or a client, among other examples. The UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some implementations, the UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communications (MTC) device, among other examples, which may be implemented in various items, such as an appliance, a vehicle, a meter, or the like, among various implementations.

[0027]

[0035] The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, which may act as relays, as well as BSs 105 and network equipment, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay BSs, among other implementations, as shown in FIG. 1 .

[0028]

[0036] The UE 115 and the BS 105 may communicate wirelessly with each other via one or more communication links 125 on one or more carriers. The term “carrier” may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier used for the communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) operated according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling coordinating operation for the carrier, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation (CA) or multi-carrier operation. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a CA configuration. CA can be used with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0029]

[0037] In some implementations (e.g., in a CA configuration), a carrier may also have acquisition or control signaling that coordinates operation for other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be arranged according to a channel raster for discovery by the UE 115. A carrier may operate in a standalone mode, where initial acquisition and connection may be made by the UE 115 over the carrier, or the carrier may operate in a non-standalone mode, where connection is anchored using a different carrier (e.g., of the same or different radio access technology).

[0030]

[0038] The communication links 125 shown in the wireless communication system 100 may include uplink transmissions from the UE 115 to the BS 105 or downlink transmissions from the BS 105 to the UE 115. A carrier may carry downlink or uplink communications (e.g., in an FDD mode) or may be configured to carry downlink and uplink communications (e.g., in a TDD mode).

[0031]

[0039] A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some implementations, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one of several determined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)) for a carrier of a particular radio access technology. The devices of the wireless communication system 100 (e.g., the BS 105, the UE 115, or both) may have a hardware configuration that supports communication over a particular carrier bandwidth or may be configurable to support communication over one of a set of carrier bandwidths. In some implementations, the wireless communication system 100 may include a BS 105 or a UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some implementations, each served UE 115 may be configured to operate over a portion (e.g., a sub-band, BWP), or all, of the carrier bandwidth.

[0032]

[0040] A signal waveform transmitted on a carrier may be composed of multiple subcarriers (e.g., using a multi-carrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing an MCM technique, a resource element may consist of one symbol period (e.g., the time length of one modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely proportional. The amount of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Thus, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate for the UE 115 may be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may further increase the data rate or data integrity for communications with the UE 115.

[0033]

[0041] One or more numerologies for a carrier may be supported, where the numerology may include a subcarrier spacing (Δf), and a cyclic prefix A carrier may be divided into one or more BWPs with the same or different numerologies. In some implementations, a UE 115 may be configured with multiple BWPs. In some implementations, a single BWP for a carrier may be active at a given time, and communication for the UE 115 may be limited to one or more active BWPs.

[0034]

[0042] The time interval for the BS 105 or the UE 115 may be, for example, T s =1 / (Δf max N f ) seconds. In this case, Δf max may represent the maximum supported subcarrier spacing, and N fmay represent the maximum supported DFT size. The communication resource time intervals may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., in the range of 0 to 1023).

[0035]

[0043] Each frame may include multiple consecutively numbered subframes or slots, and each subframe or slot may have the same time length. In some implementations, a frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into several slots. Alternatively, each frame may include a variable number of slots, and the number of slots may depend on the subcarrier spacing. Each slot may include several symbol periods (e.g., depending on the length of a cyclic prefix prepended to each symbol period). In some wireless communications systems 100, a slot may be further divided into multiple minislots, each containing one or more symbols. Excluding the cyclic prefix, each symbol period may include one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the frequency band of operation.

[0036]

[0044] A subframe, slot, minislot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some implementations, the TTI duration (e.g., the number of symbol periods within a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

[0037]

[0045] Physical channels may be multiplexed on carriers according to various techniques. Physical control channels and physical data channels may be multiplexed on downlink carriers using, for example, one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by a number of symbol periods and may span the system bandwidth of the carrier or a subset of the system bandwidth. One or more control regions (e.g., CORESET) may be configured for a set of UEs 115. For example, one or more of the UEs 115 may monitor or search the control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates at one or more aggregation levels configured in a cascaded manner. The aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for sending control information to multiple UEs 115 and a UE-specific search space set for sending control information to a particular UE 115 .

[0038]

[0046] Each BS 105 may provide communication coverage via one or more cells, e.g., macro cells, small cells, hot spots, or other types of cells, or any combination thereof. The term “cell” may refer to a logical communication entity used for communication with the BS 105 (e.g., on a carrier) and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other) for distinguishing neighboring cells. In some implementations, a cell may also refer to a geographic coverage area 110 or a portion (e.g., a sector) of a geographic coverage area 110 in which the logical communication entity operates. Such a cell may range from a smaller area (e.g., a structure, a subset of a structure) to a larger area, depending on various factors such as the capabilities of the BS 105F. For example, a cell may be or include a building, a subset of a building, or an outer space between or overlapping with the geographic coverage area 110, among other implementations.

[0039]

[0047] A macro cell generally covers a relatively large geographic area (e.g., a few kilometers in radius) and may allow unrestricted access by UEs 115 with a service subscription with the network provider that supports the macro cell. Small cells may be associated with lower-power BSs 105 compared to macro cells, and the small cells may operate in the same or different (e.g., licensed, unlicensed) frequency bands as the macro cell. A small cell may provide unrestricted access to UEs 115 with a service subscription with the network provider, or may provide restricted access to UEs 115 that have an association with the small cell (e.g., UEs 115 in a Closed Subscriber Group (CSG), UEs 115 associated with users at home or in the office). A BS 105 may support one or more cells and may also support communication on one or more cells using one or more component carriers.

[0040]

[0048] In some implementations, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, Narrowband IoT (NB-IoT), enhanced Mobile Broadband (eMBB)) that may provide access to different types of devices.

[0041]

[0049] In some implementations, the BSs 105 may be mobile and thus may provide communication coverage to moving geographic coverage areas 110. In some implementations, different geographic coverage areas 110 associated with different technologies may overlap, although the different geographic coverage areas 110 may be supported by the same BS 105. In some other implementations, overlapping geographic coverage areas 110 associated with different technologies may be supported by different BSs 105. The wireless communication system 100 may include a heterogeneous network, for example, where different types of BSs 105 provide coverage to various geographic coverage areas 110 using the same or different radio access technologies.

[0042]

[0050] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, the BSs 105 may have similar frame timing, and transmissions from different BSs 105 may be approximately aligned in time. For asynchronous operation, the BSs 105 may have different frame timing, and transmissions from different BSs 105 may not be aligned in time, in some implementations. The techniques described herein may be used for either synchronous or asynchronous operation.

[0043]

[0051] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and can enable automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technologies that enable devices to communicate with each other or with the BS 105 without human intervention. In some implementations, M2M communication or MTC may include communication from devices that incorporate sensors or meters to measure or capture information and relay that information to a central server or application program that utilizes such information or presents it to a human who interacts with the application program. Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business billing.

[0044]

[0052] Some UEs 115 may be configured to utilize operating modes that reduce power consumption, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception, but not simultaneous transmission and reception). In some implementations, half-duplex communication may be performed at a reduced peak rate. Other power conservation techniques for the UE 115 include entering a power-saving deep sleep mode when not engaged in active communication, operating over a limited bandwidth (e.g., pursuant to narrowband communication), or a combination of these techniques. For example, some UEs 115 may be configured for operation using a narrowband protocol type associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of the carrier, or outside of the carrier.

[0045]

[0053] The wireless communication system 100 may be configured to support ultra-reliable or low-latency communications, or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low-latency communications (URLLC) or mission-critical communications. The UE 115 may be designed to support ultra-reliable, low-latency, or critical functionality (e.g., mission-critical functionality). Ultra-reliable communications may include private or group communications and may be supported by one or more mission-critical services, such as mission critical push-to-talk (MCPTT), mission critical video (MCVideo), or mission critical data (MCData). Support for mission-critical functionality may include service prioritization, and the mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency may be used interchangeably herein.

[0046]

[0054] In some implementations, the UE 115 may also be able to communicate directly with other UEs 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) protocol or a D2D protocol). One or more UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the BS 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the BS 105 or may in some cases be unable to receive transmissions from the BS 105. In some implementations, a group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system in which each UE 115 transmits to every other UE 115 in the group. In some implementations, the BS 105 facilitates scheduling of resources for D2D communication. In some other implementations, D2D communication occurs between UEs 115 without the involvement of the BS 105.

[0047]

[0055] In some implementations, the D2D communication link 135 may be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UEs 115). In some implementations, the vehicles may communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination thereof. The vehicles may signal information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information relevant to the V2X system. In some implementations, vehicles in a V2X system may communicate with roadside infrastructure, such as roadside units, or a network via one or more network nodes (e.g., BSs 105) using vehicle-to-network (V2N) communication, or both.

[0048]

[0056] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or 5G core (5GC) that may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) that manages access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) that routes packets or interconnections to external networks. The control plane entity may manage non-access stratus (NAS) functions, such as mobility, authentication, and bearer management, for the UEs 115 served by the BSs 105 associated with the core network 130. User IP packets may be forwarded through the user plane entity, which may provide IP address allocation as well as other functions. The user plane entities may be connected to IP services 150 for one or more network operators. The IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0049]

[0057] Some of the network devices, such as the BS 105, may include subcomponents, such as an access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with the UE 115 through one or more other access network transmitting entities 145, which may be referred to as radio heads, smart radio heads, or transmission / reception points (TRPs). Each access network transmitting entity 145 may include one or more antenna panels. In some configurations, various functions of each access network entity 140 or the BS 105 may be distributed across various network devices (e.g., radio heads and ANCs) or integrated within a single network device (e.g., the BS 105). In various implementations, the BS 105, or the access BS network entity 140, or the core network 130, or some subcomponents thereof, may be referred to as a network entity.

[0050]

[0058] As described herein, the BS 105 may include components located in a single physical location or components located in various physical locations. In examples where the BS 105 includes components located in various physical locations, the various components may each perform various functions such that the various components collectively achieve similar functionality as the BS 105 located in a single physical location. Thus, the BS 105 described herein may equivalently refer to a standalone BS 105 or a BS 105 including components located in various physical locations. In some implementations, such a base station 105 including components located in various physical locations may be referred to as or associated with a disaggregated radio access network (RAN) architecture, such as an open RAN (O-RAN) or virtualized RAN (VRAN) architecture. In some implementations, such components of the BS 105 may include or refer to one or more of a central unit (CU), a distributed unit (DU), or a radio unit (RU).

[0051]

[0059] The wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). The 300 MHz to 3 GHz region is commonly known as the ultra-high frequency (UHF) region or decimeter band because wavelengths range in length from approximately 1 decimeter to 1 meter. Although UHF waves may be blocked or redirected by buildings and environmental features, the waves can penetrate structures sufficiently for a macrocell to provide service to UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers) compared to transmissions using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0052]

[0060] The wireless communication system 100 may also operate in the very high frequency (SHF) region, using the frequency band from 3 GHz to 30 GHz, also known as the centimeter band, or in the extremely high frequency (EHF) region of the spectrum, also known as the millimeter band (e.g., from 30 GHz to 300 GHz). In some implementations, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the BS 105, and the EHF antennas on each device may be smaller and more closely spaced than UHF antennas. In some implementations, this may facilitate the use of antenna arrays on the devices. However, propagation of EHF transmissions may experience even greater atmospheric attenuation and may cover shorter distances than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions using one or more different frequency regions, and the designated use of bands across these frequency regions may vary by country or regulatory body.

[0053]

[0061] The wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ License Assisted Access (LAA), LTE-Unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band, such as the 5 GHz Industrial, Scientific, and Medical (ISM) band. When operating in an unlicensed radio frequency spectrum band, devices such as the BS 105 and the UE 115 may employ carrier sensing for contention detection and avoidance. In some implementations, operation in an unlicensed band may be associated with a CA configuration in conjunction with a component carrier (e.g., LAA) operating in a licensed band. Operation in an unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other implementations.

[0054]

[0062] The BS 105 or UE 115 may be equipped with multiple antennas that can be used to utilize techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the BS 105 or UE 115 may be located in one or more antenna arrays or antenna panels that can support MIMO operation or transmit or receive beamforming. For example, one or more BS antennas or antenna arrays may be collocated in an antenna assembly such as an antenna tower. In some implementations, antennas or antenna arrays associated with the BS 105 may be located in various geographic locations. The BS 105 may have an antenna array with several rows and columns of antenna ports that the BS 105 can use to support beamforming of communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals transmitted through the antenna ports.

[0055]

[0063] The BS 105 or UE 115 may use MIMO communications to exploit multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques are sometimes referred to as spatial multiplexing. Multiple signals may be transmitted by a transmitting device, for example, via different antennas or different combinations of antennas. Similarly, multiple signals may be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports used for channel measurements and reporting. MIMO techniques include single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multiple-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0056]

[0064] Beamforming, sometimes referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting or receiving device (e.g., BS 105, UE 115) to shape or steer an antenna beam (e.g., transmit beam, receive beam) along a spatial path between the transmitting and receiving devices. Beamforming may be achieved by combining signals communicated through antenna elements of an antenna array such that some signals propagating in a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjusting signals communicated through antenna elements may include the transmitting or receiving device applying an amplitude offset, a phase offset, or both to signals carried through the antenna element associated with the device. The adjustment associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., relative to the antenna array of the transmitting or receiving device, or to some other orientation).

[0057]

[0065] The BS 105 or the UE 115 may use beam sweeping techniques as part of a beamforming operation. For example, the BS 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform a beamforming operation for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the BS 105 in different directions. For example, the BS 105 may transmit signals according to different beamforming weight sets associated with different directions of transmission. Transmissions in various beam directions may be used (e.g., by a transmitting device such as the BS 105 or by a receiving device such as the UE 115) to identify beam directions for subsequent transmission or reception by the BS 105.

[0058]

[0066] Some signals, such as data signals associated with a particular receiving device, may be transmitted by the BS 105 in a single beam direction (e.g., a direction associated with the receiving device, such as the UE 115). In some implementations, the beam direction associated with transmission along the determined single beam direction may be associated with signals transmitted in one or more beam directions. For example, the UE 115 may receive one or more of the signals transmitted by the BS 105 in different directions and may report to the BS 105 an indication of the signal that the UE 115 received with the highest signal quality or possibly an acceptable signal quality.

[0059]

[0067] In some implementations, transmission by a device (e.g., by the BS 105 or the UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a composite beam for transmission (e.g., from the BS 105 to the UE 115). The UE 115 may report feedback indicating precoding weights for one or more beam directions, where the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. The BS 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)), which may be precoded or ampliconed. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook). Although these techniques have been described with respect to signals transmitted in one or more directions by the BS 105, the UE 115 may employ similar techniques to transmit a signal multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by the UE 115) or to transmit a signal in a single direction (e.g., to transmit data to a receiving device).

[0060]

[0068] A receiving device (e.g., UE 115) may attempt multiple receive configurations (e.g., directional listening) when receiving various signals from BS 105, such as synchronization signals, reference signals, beam selection signals, or other control signals. For example, a receiving device may attempt multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as “listening” according to different receive configurations or receive directions. In some implementations, a receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal). A single receiving configuration may be aligned to a determined beam direction associated with listening along different receiving configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or otherwise acceptable signal quality associated with listening along multiple beam directions).

[0061]

[0069] The wireless communication system 100 may be a packet-based network operating according to a layered protocol stack. In the user plane, communications at the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based. The Radio Link Control (RLC) layer may perform packet segmentation and reassembly to communicate on logical channels. The Medium Access Control (MAC) layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer may also use error detection, error correction, or both to support retransmissions at the MAC layer and improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer may establish, configure, and maintain RRC connections between the UE 115 and the BS 105 or core network 130, which support radio bearers for user plane data. In the physical layer, transport channels may be mapped to physical channels.

[0062]

[0070] The UE 115 and the BS 105 may support retransmission of data to increase the likelihood that the data is successfully received. Hybrid automatic repeat request (HARQ) feedback is one technique for increasing the likelihood that data is correctly received over the communication link 125. HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve throughput at the MAC layer in poor radio conditions (e.g., low signal-to-noise conditions). In some implementations, a device may support same-slot HARQ feedback, in which the device may provide HARQ feedback in a particular slot for data received in a previous symbol in that slot. In some other implementations, the device may provide HARQ feedback in a subsequent slot or according to some other time interval.

[0063]

[0071] In some implementations, such as further enhanced MIMO (FeMIMO), support for joint TCI for the downlink and uplink may be associated with other TCI frameworks. The term “TCI” may include a TCI state that includes at least one source reference signal to provide a reference that may be a UE assumption for determining quasi co-location (QCL), a spatial filter, or both. To accommodate embedding separate beam direction for the uplink and downlink, two separate TCI states, e.g., one for the downlink and one for the uplink, may be utilized. In the case of separate downlink TCI states, the source reference signal(s) in the M TCIs provide QCL information at least for UE-dedicated reception on the physical downlink shared channel (PDSCH) and for UE-dedicated reception on all or a subset of the CORESETs in the component carrier. In the case of separate uplink TCIs, the source reference signal(s) in the N TCIs provide a basis for determining common uplink transmitter spatial filter(s) for at least the dynamic grant / configuration grant-based physical uplink shared channel (PUSCH) for all or a subset of the dedicated physical uplink control channel (PUCCH) resources in the component carrier. Optionally, the uplink transmitter spatial filter may also be applied to all sounding reference signal resources in the resource set(s) configured for antenna-switched / codebook-based / non-codebook-based uplink transmission. Furthermore, in the case of an integrated TCI where the downlink TCI state and the uplink TCI state are separate, one instance of beam direction using downlink control information (DCI) format 1_1 / 1_2 (with or without downlink assignment) can be utilized in multiple ways. One TCI field code point may represent a pair including a downlink TCI state and an uplink TCI state. Second, one TCI field code point represents a downlink TCI state.Additionally or alternatively, one TCI field codepoint represents an uplink TCI state.

[0064]

[0072] Implementations described herein relate to techniques for indicating several activated TCI states and TCI state types in a single TCI codepoint. The TCI codepoint may include one or more TCI state identifiers and an indication of one of two configured lists with which the TCI state identifiers are associated, such as via radio resource control (RRC). In some implementations, the BS may configure two bitmaps, with a first bitmap corresponding to a downlink TCI state and a second bitmap corresponding to an uplink TCI state. Each codepoint in the MAC-CE that activates one or more TCI states may include one bit from the first bitmap, such as indicating a UL TCI state in the TCI state pair, and one bit from the second bitmap, such as indicating a DL TCI state in the TCI state pair. In some implementations, such as when an odd number of bits are activated in the two bitmaps, the last remaining bit may indicate a single TCI state, such as uplink or downlink. In some other implementations, each codepoint in the MAC-CE that activates one or more TCI states may include one TCI state identifier (ID) from a first list (e.g., a list indicating a UL TCI state in a pair of TCI states) and one TCI state ID from a second list (e.g., a list indicating a DL TCI state in a pair of TCI states).

[0065]

[0073] 2 illustrates an example signaling diagram 200 supporting beam configuration activation and deactivation under multiple TRP operations. The signaling diagram 200 may implement or be implemented by one or more aspects of the wireless communication system 100. For example, the wireless communication system 200 may include a UE 115-a and a BS 105-a, which may be examples of the UE 115 and the BS 105 described with reference to FIG. 1. While examples are discussed herein, any number of devices and device types may be used to achieve the implementations described in this disclosure. As used herein, the term beam configuration may be referred to as a TCI state, and the term TCI state may be referred to as a beam configuration.

[0066]

[0074] The BS 105-a and the UE 115-a can communicate via the downlink channel 205 and the uplink channel 225. In some implementations, the UE 115-a can receive a configuration of the TCI states from the BS 105-a, such as via RRC signaling. The UE 115-a can receive a MAC-CE from the BS 105-a related to the configuration of the TCI states, where the MAC-CE may activate a subset of the configured TCI states for TCI codepoints in the DCI. The UE 115-a may receive a DCI (sometimes referred to as a DCI message) having a TCI codepoint that selects a TCI state from the activated TCI states, as indicated by the MAC-CE, for use in communicating with the BS 105-a.

[0067]

[0075] In some implementations, the BS 105-a and the UE 115-a may utilize one or more types of unified TCI. In some implementations, the BS 105-a and the UE 115-a may utilize joint downlink and uplink common TCI states to indicate a common beam for at least one downlink channel and downlink reference signal and at least one uplink channel 225 and uplink reference signal. In some other implementations, the BS 105-a and the UE 115-a may utilize separate downlink common TCI states to indicate a common beam for two or more downlink channels and reference signals. In some other implementations, the BS 105-a and the UE 115-a may utilize separate common TCI states to indicate a common beam for two or more uplink channels and reference signals. In still some other implementations, the BS 105-a and the UE 115-a may utilize separate single downlink channel and reference signal TCI states to indicate a beam for a single downlink channel and reference signal. Similarly, the BS 105-a and the UE 115-a may utilize separate single uplink channel and reference signal TCI states to indicate a beam for the single uplink channel and reference signal. Finally, the BS 105-a and the UE 115-a may utilize uplink spatial relationship information, such as a sounding reference signal resource indicator (SRI), to indicate a beam for the single uplink channel and reference signal. The downlink channel may include a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH), or both, and the uplink channel may include a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH), or both. The downlink reference signal may include a CSI-RS, and the uplink reference signal may include a sounding reference signal (SRS).

[0068]

[0076] However, in some implementations, the BS 105-a and the UE 115-a may utilize joint downlink and uplink common TCI states to indicate a common beam for at least one uplink channel and reference signal in addition to at least one downlink channel and reference signal. Additionally or alternatively, the BS 105-a and the UE 115-a may utilize separate downlink TCI states to indicate a common beam for two or more downlink channels and reference signals, separate uplink common TCI states to indicate a common beam for two or more uplink channels or reference signals, or both. In implementations utilizing a joint TCI, one instance of a beam indication, such as a beam indicated via a DCI, may indicate a TCI state type corresponding to the joint TCI. For example, one TCI field codepoint may represent a pair of TCI states, such as one downlink TCI state and one uplink TCI state, depending on the TCI state configuration and activation.

[0069]

[0077] In some implementations, such as those described herein, the TCI state may be configured by an RRC message 210, which may support UE-specific operation in multiple TRP configurations. Furthermore, a TCI state from the available TCI states may be activated for a UE-specific physical downlink shared channel (PDSCH), such as via a MAC-CE message 215, for single DCI (sDCI)-based multiple TRP operation. Alternatively, a TCI state from the available TCI states may be activated for multiple DCI (mDCI)-based multiple TRP operation. That is, the MAC-CE may include a set of codepoints corresponding to the activated TCI states. The MAC-CE may include a TCI state identifier (ID) for the activated TCI state. Furthermore, a single TCI codepoint may map to two TCI states in both sDCI and mDCI. In some implementations, in both sDCI and mDCI scenarios, such a TCI codepoint in the MAC-CE may not indicate different TCI state types corresponding to the two TCI states indicated in the MAC-CE.

[0070]

[0078] In some wireless communication systems, such as 5G or NR, different types of TCI states may be used to improve channel utilization between wireless devices. For example, a wireless communication system may support joint TCI states for both downlink and uplink signaling using a unified TCI framework. In some systems, the wireless communication system may support a single TCI code point that maps to multiple TCI states, such as one downlink TCI state and one uplink TCI state. However, such techniques may not clearly indicate the TCI state type of a pair of TCI states, such as a joint downlink and uplink TCI state, a separate uplink or downlink TCI state, or a common uplink or downlink TCI state. Alternatively, some wireless communication systems may support TCI activation, such as for mDCI scenarios associated with multiple transmit / receive point (TRP) operation. Such techniques may support only one TCI code point that maps to a single TCI state. Therefore, a method for indicating both multiple TCI states and the TCI state type for each activated TCI state may be beneficial. However, using multiple code points to indicate each individual state may result in inefficient signaling overhead.

[0071]

[0079] However, in some other implementations, such as those described herein, the UE 115 may receive a TCI codepoint mapped to one or two TCI states, which may include information about the respective TCI state types. That is, the BS 105-a and the UE 115-a may support unified TCI state activation and deactivation under multiple TRP operation, in which case the UE 115-a may receive an indication of a transmission and reception point (TRP) index, such as a core resource set (CORESET) pool index, via the MAC-CE message 215 if mDCI-based multiple TRPs are enabled. Otherwise, in some implementations, a field corresponding to the pool index is reserved. In some other implementations, the UE 115 may receive a MAC-CE message 215 indicating a TCI codepoint that may be mapped with one or two TCI states. The TCI codepoint may indicate separate TCI state activation and deactivation, such as a downlink-only TCI codepoint, an uplink-only TCI codepoint, or a downlink and uplink TCI codepoint. That is, two or more joint TCI states can be indicated in a single TCI codepoint.

[0072]

[0080] For example, the BS 105-a may configure available TCI states via control signaling, which may identify TCI states corresponding to TCI state types such as uplink, downlink, or both. For example, the base station 105-a may configure available TCI states via an RRC message 210 for sDCI multiple TRP operation. The UE 115-a may receive the RRC message 210 indicating a set of TCI states. The BS 105-a may send a MAC-CE message 215 to the UE 115-a, which includes a set of code points, where each of the set of code points may activate one or more configured TCI states. That is, the MAC-CE message 215 may include a set of TCI state code points that activate one or more TCI states. In some implementations, the MAC-CE message 215 may indicate separate TCI state activations, joint TCI state activations, etc. The BS 105 may send a DCI message 220 to the UE 115-a indicating which TCI state code point to utilize. In some implementations, such as joint TCI state activation, a single TCI code point may indicate two TCI states, such as uplink and downlink, and their corresponding TCI state types. The DCI message 220 may indicate one or more of the activated TCI states to use in communications with the BS 105-a. The UE 115-a may utilize the indicated TCI states and TCI state types to perform communications with the BS 105-a over the uplink channel 225 and downlink channel 205.

[0073]

[0081] In some implementations, a TCI codepoint may include one or more TCI state identifiers and an indication, such as by RRC, of ​​one of two configured lists with which the TCI state identifiers are associated. In some implementations, the BS may configure two bitmaps, with a first bitmap corresponding to a downlink TCI state and a second bitmap corresponding to an uplink TCI state. Each codepoint in the MAC-CE that activates one or more TCI states may include one bit from the first bitmap, such as indicating a UL TCI state in a pair of TCI states, and one bit from the second bitmap, such as indicating a DL TCI state in a pair of TCI states. In some implementations, such as when an odd number of bits are activated in two bitmaps, the last remaining bit may indicate a single TCI state, such as uplink or downlink. The use of a single TCI list or two TCI lists, as well as two bitmaps, is described in more detail in Figures 3 through 6.

[0074]

[0082] 3 illustrates an example of a medium access control-control element (MAC-CE) 300 that supports beam configuration activation and deactivation under multiple-TRP (M-TRP) operation. The MAC-CE 300 may implement or be implemented by one or more aspects of the wireless communication system 100 and the signaling diagram 200. For example, the MAC-CE 300 may be utilized by a BS and a UE, which may be examples of the devices described with reference to FIGS. 1 and 2.

[0075]

[0083] In some implementations, the BS may send the MAC-CE 300 to the UE. The MAC-CE may include a single list of configured TCI states, where TCI states of different TCI state types have different TCI IDs in the list. Each TCI state in the MAC-CE 300 may be a downlink TCI state, an uplink TCI state, or a joint TCI state. The list of TCI states may be configured by the BS via RRC signaling. The MAC-CE may include a field 305 indicating a CORESET pool ID, a field 310 indicating a serving cell ID, and a field 315 indicating a BWP ID. In some implementations, the field 305 may indicate a CORESET pool ID if mDCI-based M-TRP operation is enabled and if different CORESET pool indices are configured. In some implementations, the field 305 may be a reserved field if sDCI-based M-TRP operation is enabled and if a CORESET pool index is not configured or if a single CORESET pool index is configured.

[0076]

[0084] MAC-CE 300 includes a set of codepoints, where each codepoint may include a first bit indicating whether the codepoint indicates a single TCI state or a pair of TCI states. Each codepoint may include a set of bits (such as one or two octets). For example, field 320 may include a first bit (C0, C1, maxCN). The bit in field 320 may indicate whether an octet containing a second TCI state of a pair of TCI states is present in the TCI codepoint. If field 320 is set to 1, the second TCI state may be present in the TCI codepoint. In such an example, codepoint 340 may include two octets containing TCI state ID01 and TCI state ID02, where the two TCI states may be of different TCI state types.

[0077]

[0085] The UE may ascertain, identify, or determine whether the first code point 340 corresponds to a single TCI state or a pair of TCI states. In other words, the first bit in field 320 may indicate whether there are one or two TCI states corresponding to the first code point 340. The UE may identify one or two TCI state IDs. For example, if the bit in field 320 is set to 0, the octet including the reserved field 330 and field 335 (for a second TCI state ID, etc.) may not be present. However, if the bit in field 320 is set to 1, a second TCI state ID may be present in field 335. Each TCI ID may be up to 7 bits. For example, if the bit in field 320 is set to 1, a first TCI state ID 01, which may be represented by 7 bits, may be present in field 325. Field 330 may be reserved, and field 335 may include a second TCI state ID 02, which may be represented by 7 bits. Thus, the two octets of codepoint 340 may indicate a pair of TCI state IDs.

[0078]

[0086] The TCI state type may be identified via a TCI ID. That is, each unique TCI state ID may indicate the parameters of the TCI state as well as the TCI state type (such as uplink, downlink, or joint) of the TCI state. Thus, by receiving and decoding the TCI state ID, the UE may ascertain, identify, or determine the type for each TCI state.

[0079]

[0087] In some implementations, if the first bit in field 320 is equal to 0, the UE may verify, identify, or determine that the first code point 340 includes a single TCI state identifier. The UE may utilize TCI State ID01 in field 325 and a corresponding TCI state type for communication (e.g., transmission or reception) with the BS. Thus, the first code point 340 may include a single octet indicating a single TCI state ID and TCI state type. In some implementations, the UE may map TCI State ID01 (or a bit stream defining TCI State ID01) to a set of TCI states configured via RRC signaling. In such implementations, each TCI state configured via RRC signaling may be associated with a TCI State ID. The TCI State ID may be configured in previous signaling or may be pre-configured in RRC signaling. Thus, a TCI state ID (such as TCI state ID01) in MAC-CE 300 may match one of the TCI state IDs in the set of TCI states. The UE may map TCI ID01 to the corresponding TCI ID01 in the set of TCI states and thus identify which one or more TCI states of the set of TCI states are indicated by code point 340.

[0080]

[0088] Upon transmitting the MAC-CE 300 to the UE, a single TRP, such as a BS, can transmit a DCI message granting resources for communicating with the TRP. That is, the UE can be instructed by the single TRP which activated TCI state to utilize from the active TCI states indicated in the MAC-CE 300. In some implementations, a DCI (such as an sDCI or mDCI) may instruct the UE to communicate with multiple TRPs using one or more of the active TCI states indicated in the MAC-CE.

[0081]

[0089] 4 illustrates an example of a MAC-CE 400 that supports beam configuration activation and deactivation under multiple TRP operation. The MAC-CE 400 may implement or be implemented by one or more aspects of the wireless communication system 100 and signaling diagram 200. For example, the combined MAC-CE 400 may be utilized by a TRP and a UE, such as a BS, which may be an example of the base station 105 and UE 115 described with reference to FIGS. 1 and 2. In some implementations, the MAC-CE 400 may utilize one or more signaling techniques, such as those described with reference to FIG. 3.

[0082]

[0090] In some implementations, the TRP can configure separate TCI state lists, for example, via an RRC message. The UE may receive an RRC message indicating a set of lists corresponding to the configured TCI states. In some implementations, one list may include uplink TCI states, and the second list may include downlink TCI states. In other words, the TRP can configure two subsets of TCI states, with the first subset corresponding to uplink TCI state types and the second subset corresponding to downlink TCI state types. The TRP may transmit a MAC-CE 400 to the UE indicating the activated TCI states and TCI state types. For example, each code point in the MAC-CE 400 may indicate one or two TCI states. Each TCI state ID in each list may be defined by up to six bits, and an additional bit (e.g., in each octet) may indicate one of the two lists to which the TCI state ID corresponds.

[0083]

[0091] Similar to the MAC-CE 300 described in FIG. 3, the MAC-CE 400 may include a set of fields, such as a field 405 indicating a CORESET pool ID, a field 410 indicating a serving cell ID, and a field 415 indicating a BWP ID. In some implementations, a bit in field 420 (e.g., the first bit of the first octet) may indicate whether the TCI state corresponds to a single TCI state or a pair of TCI states. For example, field 420 may include a first bit (C0, C1, maxCN). The bit in field 420 may indicate whether a second octet containing a second TCI state of the pair of TCI states is present in the MAC-CE 400. If field 420 is set to 1, a second TCI state ID (e.g., the second octet containing fields 450, 440, and 445) may be present. In such an example, code point 340 may include two octets, including TCI state ID 01 and TCI state ID 02. If field 420 is set to 0, then the second TCI state may not be present. Thus, the UE may ascertain, identify, or determine from code point 435 whether a single TCI state or a joint TCI state is indicated (e.g., by the first bit in field 420).

[0084]

[0092] Each code point 435 may also indicate a type for each indicated TCI state. The bit associated with each TCI state ID (e.g., in each current octet) may indicate a list with which the TCI state ID is associated. In an implementation in which field 420 is set to 0, the UE may verify, identify, or determine whether a single TCI state corresponds to an uplink or downlink TCI state type associated with the list ID indicated in field 425. Field 425 may explicitly indicate which list the TCI state type belongs to, e.g., an uplink or downlink TCI state type. In some implementations, field 420 within code point 435 may indicate a pair of TCI states. That is, code point 435 may identify a first TCI state and a corresponding first TCI state type, as well as a second TCI state and a corresponding second TCI state type.

[0085]

[0093] In some implementations, the UE may utilize the list ID in field 425 to verify, identify, or determine whether a TCI state corresponds to an uplink TCI state type or a downlink TCI state type. The UE may determine the TCI state ID01 in field 430. In some implementations, the UE may map the TCI state ID01 (or a bitstream defining the TCI state ID01) to a set of TCI states configured via RRC signaling. In such implementations, each of the TCI states configured via RRC signaling may be associated with a TCI state ID. The TCI state ID may be configured in previous signaling or may be pre-configured in RRC signaling. Thus, a TCI state ID (such as TCI state ID01) in the MAC-CE 400 may match, map, or otherwise correspond to one of the TCI state IDs in the set of TCI states. The UE may map TCI ID01 to a corresponding TCI ID01 in the set of TCI states and thus verify, identify, or determine which one or more TCI states of the set of TCI states are indicated by code point 435. Thus, because the first bit in field 420 indicates a pair of TCI states, the UE may utilize the second list ID in field 440 to determine the TCI state type that corresponds to the second TCI state ID, such as uplink or downlink. The UE may map TCI state ID02 to the set of TCI states.

[0086]

[0094] In some other implementations, if there is a pair of DL and UL TCI states activated by the MAC-CE at a TCI codepoint, the first and second octets for the TCI codepoint may be mapped in the default order of the TCI type. For example, if field 420 for TCI codepoint 435 is set to 1, the first and second octets for TCI codepoint 435 may be mapped to the DL TCI state and the UL TCI state, respectively. In such implementations, information in MAC-CE 400 (such as information at or within field 425 and field 440) may be reduced, which may result in saving overhead resources.

[0087]

[0095] In some implementations, the TCI ID in MAC-CE 400 may be up to 6 bits, in which case the list ID in field 425 may be indicated along with the TCI ID in field 430. In other words, the list ID in field 425 and the second list ID in field 440 may indicate which list of MAC-CE 400 the TCI state corresponds to. By determining the list IDs in fields 425 and 440, the UE can determine whether the TCI state type is uplink or downlink. Thus, for a single TCI state ID (e.g., TCI state ID 01), code point 435 may include a single octet (e.g., one bit in field 420 indicating the absence of a second octet, one bit in field 425 indicating which list TCI state ID 01 corresponds to, and up to 6 bits of the TCI state ID in field 430). For a pair of TCI state IDs (such as TCI state ID01 and TCI state ID02), codepoint 435 may include two octets (such as one bit in field 420 indicating the presence of a second octet, one bit in field 425 indicating which list TCI state ID02 corresponds to, up to six bits of TCI state ID in field 430, a reserved bit in field 450, one bit in field 440 indicating which list TCI state ID01 corresponds to, and up to six bits of TCI state ID in field 445).

[0088]

[0096] The UE can utilize the MAC-CE 400 to determine N code points, where each code point may indicate a single TCI state or a joint TCI state. The UE can then receive a DCI that selects one or more of the activated TCI states and can communicate with one or more TRPs using the selected TCI states.

[0089]

[0097] 5 illustrates an example bitmap of a MAC-CE 500 supporting beam configuration activation and deactivation under multiple TRP operation. The MAC-CE 500 may implement or be implemented by one or more aspects of the wireless communication system 100 and signaling diagram 200. For example, the MAC-CE 500 may be utilized by a TRP and a UE, such as a BS, which may be examples of the BS 105 and UE 115 described with reference to FIGS. 1 and 2. In some implementations, the MAC-CE 500 may indicate a TCI state and a TCI state type corresponding to a joint TCI state or separate TCI states, as described with reference to FIGS. 3 and 4.

[0090]

[0098] In some implementations, a base station (e.g., via a TRP) may configure a UE with two bitmaps corresponding to two lists of TCI states configured via RRC signaling. The first list of TCI states may be a list of downlink TCI states, and the second list of TCI states may be a list of uplink TCI states. Each bit in the two bitmaps may correspond to a TCI state in the corresponding list of TCI states. In some implementations, the first bitmap 505 may indicate the length of the list of downlink TCI states, and the second bitmap 510 may indicate the length of the list of uplink TCI states. That is, the first bitmap 505 may correspond to a first subset of TCI states that may correspond to downlink TCI states, while the second bitmap 510 may correspond to a second subset of TCI states that may correspond to uplink TCI states.

[0091]

[0099] A base station may transmit a MAC-CE 500 to a UE. The MAC-CE 500 may include a bitmap 505 and a bitmap 510. Bits in the first bitmap 505 and the second bitmap 510 may indicate whether a TCI state is activated or deactivated. For example, a bit set to 1 may indicate that the TCI state corresponding to that bit is activated, and a bit set to 0 may indicate that the TCI state corresponding to that bit is deactivated or not activated. The UE may form a codepoint by identifying bits for activated TCI states from the first bitmap 505, the second bitmap 510, or both.

[0092]

[0100] The UE may generate a code point by mapping the activated bits to a TCI code point in order. In some implementations, if a bit in the first bit map 505 is 0, the TCI state may be deactivated and the bit of the bit map may not be mapped to a code point. For the first bit map 505, bits T0, T2, T5, T6, T7, T8, T9, T10, T11, T13, T14, and T15 may be set to 0. However, bits T1, T4, and T12 may be set to 1, indicating an activated TCI state from the first list of TCI states. Thus, bits T1, T4, and T12 may be mapped to one or more code points. Similarly, for the second bitmap 510, bits T0, T1, T2, T3, T5, T6, T7, T8, T9, T10, T11, T12, T13, and T15 may be set to 0, indicating a deactivated TCI state, which may not be mapped to a code point. However, bits T4 and T14 may be set to 1, indicating an activated TCI state, which may in turn be mapped to a code point.

[0093]

[0101] Each code point may include one or two bits mapped in order from the activated bit. For example, the first activated bit in ascending order for the first bitmap 505 (e.g., T1) and the first activated bit in ascending order for the second bitmap 505 (e.g., T4) may be included in TCI code point 0. Thus, TCI code point 0 may include bit T1 of the first bitmap 505 and bit T4 of the second bitmap 510. Thus, TCI code point 0 may indicate DL TCI state ID 1 (from the first list) and UL TCI state ID 4 (from the second list) (by association between the bits of each bitmap and the corresponding TCI state). The second activated bit in ascending order for the first bitmap 505 (e.g., T4) and the second activated bit in ascending order for the second bitmap 505 (e.g., T14) may be included in the second code point. Thus, TCI codepoint 1 may include bit T4 of first bitmap 505 and bit T14 of second bitmap 510. Thus, TCI codepoint 1 may indicate DL TCI state ID 4 (from the first list) and UL TCI state ID 14 (from the second list) (by the association between each bitmap bit and the corresponding TCI state). The third activated bit in ascending order of first bitmap 505 (e.g., T13) may be included in TCI codepoint 2. However, there may not be an additional corresponding activated bit from second bitmap 510. Thus, TCI codepoint 2 may include a single bit associated with DL TCI state ID 12. Therefore, due to the nature of the ordered mapping of activated TCI states to code points, a pair of downlink and uplink TCI states may be activated by a single code point (such as TCI code point 0 and TCI code point 1), or a single uplink or downlink TCI state (such as DL TCI state ID 12) may be activated.In some implementations, the techniques described with reference to FIG. 5 may be applied to separate TCI state activation.

[0094]

[0102] Upon receiving a DCI (such as an sDCI or an mDCI) indicating one of the activated TCI states, the UE may communicate with one or more TRPs (such as transmitting uplink signaling or receiving downlink signaling) using the indicated one or more activated TCI states.

[0095]

[0103] 6 illustrates an example process flow 600 supporting beam configuration activation and deactivation under multiple TRP operation. For example, process flow 600 may include UE 115-b and BS 105-b, which may be examples of UE 115 and base station 105 described with reference to FIG. 1. In the following description of process flow 600, operations between UE 115-b and BS 105-b may be performed in a different order or at different times than illustrated. Some operations may also be omitted from process flow 600, and other operations may be added to process flow 600, such as multiple TRPs in addition to BS 105-b.

[0096]

[0104] At 605, the BS 105-b may send a control signal to the UE 115-b. For example, the BS 105-b may send an RRC message to the UE 115-b indicating a set of available beam configuration TCI states or multiple lists of beam configurations. In some implementations, a beam configuration may refer to a TCI state. A beam configuration may refer to one or more configurations or settings, such as a TCI state, for transmitting uplink signaling, receiving downlink signaling, or both. At 610, the BS 105-b may send a MAC-CE message to the UE 115-b indicating which TCI states are activated as indicated by the RRC message at 605. In some implementations, the MAC-CE message may indicate a joint TCI state, a single TCI state, or both. In some implementations, the TCI state may be indicated by a single list including multiple code points. A code point associated with multiple TCI states may indicate via a first bit whether the code point corresponds to a single TCI state and TCI state type or to a joint TCI state with a corresponding TCI state type, as described above with reference to Figures 2 to 5.

[0097]

[0105] Additionally or alternatively, as described with reference to Figure 4, the TCI state may be indicated by multiple lists, where the TCI state in a first list may correspond to a downlink TCI state type. Similarly, the TCI state in a second list may correspond to an uplink TCI state type. In such an example, the bit for each TCI state in each codepoint may indicate whether the TCI state is associated with the first list or the second list.

[0098]

[0106] In yet another implementation, the TCI state may be indicated via one or more bitmaps, as described herein with reference to FIG. 5. For example, a first bitmap may include bits corresponding to downlink TCI state types, and a second bitmap may include bits corresponding to uplink TCI state types. In such an example, pairs of bits from each bitmap, paired together in their respective ascending order (with reference to the respective bitmaps), may be mapped to a codepoint. The mapped pair of bits in a codepoint may indicate a joint TCI state, with each mapped pair of bits being associated with a TCI state from one of two lists (uplink or downlink). The extra bits from one of the two bitmaps may be mapped to individual codepoints in ascending order, in which case only one bit may indicate a single TCI state corresponding to one of the two lists (uplink and downlink).

[0099]

[0107] At 615, the BS 105-b may transmit a DCI to the UE 115-b, where the DCI may indicate which activated beam configuration (e.g., a TCI state) the UE 115-b may utilize to communicate with the BS 105-b. In some implementations, the UE may determine that a code point may correspond to a joint TCI state. For example, optionally, at 620, the UE 115-b may determine a joint TCI state associated with the control signal at 605, the MAC-CE message at 610, and the DCI at 615. In such an implementation, the UE 115-b may utilize an uplink TCI state and a downlink TCI state to perform uplink and downlink communications with the BS 105-b. In some implementations, the DCI may activate an uplink TCI state for uplink communications, a downlink TCI state for downlink communications, or both. In some implementations, the DCI message may be an sDCI or an mDCI. In multi-TRP operation, the DCI message may indicate one or more TCI states for communication with multiple TRPs (such as the base station 105-b, one or more additional TRPs, or any combination thereof).

[0100]

[0108] Optionally, at 630, in connection with determining that the TCI state type is a downlink TCI state type, the UE 115-b may perform downlink communication with the BS 105-b. Optionally, at 635, which may be associated with determining that the TCI state is an uplink TCI state type, the UE 115-b may perform uplink communication with the BS 105-b.

[0101]

[0109] Optionally, in connection with determining at 640 that the TCI state is a joint TCI state that may correspond to both an uplink TCI state type and a downlink TCI state type, UE 115-b may perform both uplink and downlink communications with BS 105-b.

[0102]

[0110] 7 shows a diagram of an example system 700 including a device 705 that supports beam configuration activation and deactivation under multiple transmit / receive point operation. The device 705 may communicate wirelessly with one or more base stations 105, UEs 115, or any combination thereof. The device 705 may include components for two-way voice and data communication, including components for transmitting and receiving communications, such as a communications manager 720, an input / output (I / O) controller 710, a transceiver 715, an antenna 725, memory 730, code 735, and a processor 740. These components may be in electronic communication, or in some cases may be operatively, communicatively, functionally, electronically, or electrically coupled, for example, via one or more buses, such as a bus 745.

[0103]

[0111] The I / O controller 710 may manage input and output signals for the device 705. The I / O controller 710 may also manage peripheral devices not integrated into the device 705I. In some implementations, the I / O controller 710 may represent a physical connection or port to an external peripheral device. In some implementations, the I / O controller 710 may utilize an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. Additionally or alternatively, the I / O controller 710 may represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some implementations, the I / O controller 710 may be implemented as part of a processor, such as the processor 740I. In some implementations, a user may interact with the device 705 through the I / O controller 710 or through hardware components controlled by the I / O controller 710.

[0104]

[0112] In some implementations, the device 705 may include a single antenna 725. However, in some other implementations, the device 705 may have two or more antennas 725, which may be capable of simultaneously transmitting or receiving multiple wireless transmissions. The transceiver 715 may communicate bidirectionally via one or more antennas 725, a wired link, or a wireless link, as described herein. For example, the transceiver 715 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 715 may also include a modem for modulating packets and providing the modulated packets to the one or more antennas 725 for transmission, and for demodulating packets received from the one or more antennas 725.

[0105]

[0113] Memory 730 may include random access memory (RAM) and read-only memory (ROM). Memory 730 may store computer-readable computer-executable code 735, including instructions that, when executed by processor 740, cause device 705 to perform various functions described herein. Code 735 may be stored in a non-transitory computer-readable medium, such as system memory or another type of memory. In some implementations, code 735 may not be directly executable by processor 740, but may, when compiled and executed, cause a computer to perform functions described herein. In some implementations, memory 730 may include a basic I / O system (BIOS), which may control basic hardware or software operations, such as interaction with peripheral components or devices, among other things.

[0106]

[0114] The processor 740 may include an intelligent hardware device, such as a general-purpose processor, a digital signal processor (DSP), a central processing unit (CPU), a microcontroller, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof. In some implementations, the processor 740 may be configured to operate a memory array using a memory controller. In some other implementations, the memory controller may be integrated into the processor 740. The processor 740 may be configured to execute computer-readable instructions stored in a memory, such as the memory 730, to cause the device 705 to perform various functions, such as functions or tasks supporting TCI state activation and deactivation under multiple transmit and receive point operation. For example, the device 705 or a component of the device 705 may include the processor 740 and the memory 730 coupled to the processor 740, where the processor 740 and the memory 730 are configured to perform various functions described herein.

[0107]

[0115] Communications manager 720 may support wireless communications in a UE in accordance with examples disclosed herein. For example, communications manager 720 may be configured as or otherwise support a means for receiving, from a network entity, control signaling that identifies a set of TCI states, each TCI state of the set associated with a TCI state type. Communications manager 720 may be configured as or otherwise support a means for receiving, from the network entity, a MAC Control Element (CE) message that includes a set of code points, each code point of the set of code points activating one or more TCI states of the set and indicating a TCI state type for the one or more TCI states. Communications manager 720 may be configured as or otherwise support a means for receiving, from the network entity, a DCI message that includes a grant of resources for communicating with at least a first transmission / reception point (TRP) associated with the network entity and an indication of at least one TCI state of the one or more TCI states. The communications manager 720 may be configured as or otherwise support a means for communicating with at least a first TRP according to at least one TCI state.

[0108]

[0116] In some implementations, communications manager 720 may be configured to perform various operations, e.g., receiving, monitoring, transmitting, using or otherwise cooperating with transceiver 715, one or more antennas 725, or a combination thereof. Although communications manager 720 is shown as a separate component, in some examples, one or more functions described with respect to communications manager 720 may be supported or performed by processor 740, memory 730, code 735, or a combination thereof. For example, code 735 may include instructions executable by processor 740 to cause device 705 to perform various aspects of TCI state activation and deactivation under multiple transmit / receive point operations described herein, or processor 740 and memory 730 may be otherwise configured to perform or support such operations.

[0109]

[0117] 8 shows a diagram of an example system 800 including a device 805 that supports TCI state activation and deactivation under multiple transmit / receive point operation. Device 805 may include components for two-way voice and data communication, including components for transmitting and receiving communications, such as a communications manager 820, a network communications manager 810, a transceiver 815, an antenna 825, memory 830, code 835, a processor 840, and an inter-station communications manager 845. These components may be in electronic communication, or in some cases may be operatively, communicatively, functionally, electronically, or electrically coupled, for example, via one or more buses, such as bus 850.

[0110]

[0118] The network communications manager 810 may manage communications with the core network 130, such as over one or more wired backhaul links. For example, the network communications manager 810 may manage the forwarding of data communications for client devices, such as one or more UEs 115.

[0111]

[0119] In some cases, the device 805 may include a single antenna 825. However, in some other cases, the device 805 may have two or more antennas 825, which may be capable of simultaneously transmitting or receiving multiple wireless transmissions. The transceiver 815 may communicate bidirectionally via one or more antennas 825, a wired link, or a wireless link, as described herein. For example, the transceiver 815 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 815 may also include a modem for modulating packets and providing the modulated packets to the one or more antennas 825 for transmission, and for demodulating packets received from the one or more antennas 825.

[0112]

[0120] The memory 830 may include RAM and ROM. The memory 830 may store computer-readable, computer-executable code 835, which includes instructions that, when executed by the processor 840, cause the device 805 to perform various functions described herein. The code 835 may be stored in a non-transitory computer-readable medium, such as system memory or another type of memory. In some implementations, the code 835 may not be directly executable by the processor 840, but may (e.g., when compiled and executed) cause the computer to perform the functions described herein. In some implementations, the memory 830 may include a BIOS, which may control basic hardware or software operations, such as interaction with peripheral components or devices, among other things.

[0113]

[0121] Processor 840 may include an intelligent hardware device, such as a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof. In some implementations, processor 840 may be configured to operate a memory array using a memory controller. In some other implementations, the memory controller may be integrated into processor 840. Processor 840 may be configured to execute computer-readable instructions stored in a memory, such as memory 830, to cause device 805 to perform various functions, such as functions or tasks supporting TCI state activation and deactivation under multiple transmit and receive point operation. For example, device 805 or a component of device 805 may include processor 840 and memory 830 coupled to processor 840, where processor 840 and memory 830 are configured to perform various functions described herein.

[0114]

[0122] The inter-station communications manager 845 may manage communications with other base stations 105 and may include a controller or scheduler for cooperating with the other base stations 105 to control communications with the UE 115. For example, the inter-station communications manager 845 may coordinate scheduling for transmissions to the UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some implementations, the inter-station communications manager 845 may provide an X2 interface within the LTE / LTE-A wireless communications network technology for communicating between the base stations 105.

[0115]

[0123] The communications manager 820 may support wireless communications in accordance with examples disclosed herein. For example, the communications manager 820 may be configured as or otherwise support a means for transmitting control signaling to the UE that identifies a set of TCI states and TCI state types, where each TCI state in the set of TCI states is associated with a TCI state type. The communications manager 820 may be configured as or otherwise support a means for transmitting a MAC Control Element (CE) message to the UE that includes a set of code points, where each code point in the set of code points activates one or more TCI states in the set of TCI states and indicates a TCI state type for the one or more TCI states. The communications manager 820 may be configured as or otherwise support a means for transmitting a DCI message to the UE that includes a grant of resources for communicating with at least a first transmission / reception point associated with a network entity and an indication of at least one TCI state of the one or more TCI states.

[0116]

[0124] In some implementations, communications manager 820 may be configured to perform various operations, e.g., receiving, monitoring, transmitting, using or otherwise cooperating with transceiver 815, one or more antennas 825, or a combination thereof. Although communications manager 820 is shown as a separate component, in some implementations, one or more functions described with respect to communications manager 820 may be supported or performed by processor 840, memory 830, code 835, or a combination thereof. For example, code 835 may include instructions executable by processor 840 to cause device 805 to perform various aspects of TCI state activation and deactivation under multiple transmit / receive point operations described herein, or processor 840 and memory 830 may be otherwise configured to perform or support such operations.

[0117]

[0125] 9 shows an example flowchart illustrating a method 900 for supporting beam configuration activation and deactivation under multiple transmit and receive point operation. The operations of method 900 may be performed by a UE or components thereof as described herein. For example, the operations of method 900 may be performed by a UE 115 as described with reference to FIGS. 1-7. In some implementations, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0118]

[0126] At 905, the method may include receiving, from a network entity, control signaling identifying a set of TCI states, each TCI state of the set of TCI states being associated with a TCI state type. The operations of 905 may be performed in accordance with examples disclosed herein.

[0119]

[0127] At 910, the method may include receiving, from a network entity, a MAC Control Element (CE) message including a set of code points, each code point in the set of code points activating one or more TCI states in the set of TCI states and indicating a TCI state type for the one or more TCI states. The operations of 910 may be performed in accordance with examples disclosed herein.

[0120]

[0128] At 915, the method may include receiving, from the network entity, a DCI message including a grant of resources for communicating with at least a first TRP associated with the network entity and an indication of at least one TCI state of the one or more TCI states. The operations of 915 may be performed according to examples disclosed herein.

[0121]

[0129] At 920, the method may include communicating with at least the first TRP according to the at least one TCI state. The operations of 920 may be performed according to examples disclosed herein.

[0122]

[0130] FIG. 10 shows an example flowchart illustrating a method 1000 for supporting beam configuration activation and deactivation under multiple transmit / receive point operation. The operations of method 1000 may be implemented by a network entity-ALPHA or components thereof, as described herein. For example, the operations of method 1000 may be performed by a network entity-ALPHA as described with reference to FIGS. 1-6 and 8. In some examples, the network entity-ALPHA may execute a set of instructions to control functional elements of the network entity-ALPHA to perform the described functions. Additionally or alternatively, the network entity-ALPHA may perform aspects of the described functions using dedicated hardware.

[0123]

[0131] At 1005, the method can include transmitting control signaling to the UE that identifies a set of TCI states, each TCI state in the set of TCI states being associated with a TCI state type. The operations of 1005 can be performed according to examples disclosed herein.

[0124]

[0132] At 1010, the method may include transmitting a MAC Control Element (CE) message to the UE including a set of code points, each code point in the set of code points activating one or more TCI states in the set of TCI states and indicating a TCI state type for the one or more TCI states. The operations of 1010 may be performed in accordance with examples disclosed herein.

[0125]

[0133] At 1015, the method may include transmitting, to the UE, a DCI message including a grant of resources for communicating with at least a first transmission / reception point associated with the network entity and an indication of at least one TCI state of the one or more TCI states. The operation of 1015 may be performed according to examples disclosed herein.

[0126]

[0134] The following provides a summary of some aspects of the disclosure.

[0127]

[0135] Aspect 1: A method for wireless communication in a UE, the method including: receiving control signaling from a network entity identifying a set of TCI states, where each TCI state in the set of TCI states is associated with a TCI state type; receiving a MAC CE message from the network entity including a set of code points, where each code point in the set of code points activates one or more TCI states in the set of TCI states and indicates a TCI state type for the one or more TCI states; receiving a DCI message from the network entity including a grant of resources for communicating with at least a first TRP associated with the network entity and an indication of at least one TCI state of the one or more TCI states; and communicating with the at least first TRP in accordance with the at least one TCI state.

[0128]

[0136] Aspect 2: The method of aspect 1, wherein receiving a MAC-CE includes receiving a set of code points in the MAC-CE, each code point including a first bit indicating whether the code point indicates a single TCI state or a pair of TCI states.

[0129]

[0137] Aspect 3: A method as described in any of aspects 1 to 2, wherein receiving control signaling identifying a set of TCI states includes receiving control signaling including an indication of a first subset of the set of TCI states associated with a TCI state type that includes uplink and an indication of a second subset of the set of TCI states associated with a TCI state type that includes downlink.

[0130]

[0138] Aspect 4: The method of aspect 3, wherein receiving a MAC-CE includes receiving, at a first code point of the set of code points, a first indicator that the code point identifies a single TCI state; and receiving, based at least in part on receiving a first bit of each code point, a second indicator that identifies, at the first code point of the set of code points, whether the single TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states.

[0131]

[0139] Aspect 5: The method of any of aspects 3 to 4, wherein receiving a MAC-CE includes receiving a first indicator, at a first code point of the set of code points, that the first code point identifies a first TCI state and a second TCI state; receiving a second indicator, at the first code point of the set of code points, that identifies whether the first TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states; and receiving a third indicator, at the first code point of the set of code points, that identifies whether the second TCI state is associated with the first subset of the set of TCI states or a second subset of the set of TCI states.

[0132]

[0140] Aspect 6: Receiving a MAC-CE includes receiving, in the MAC-CE, a first bitmap associated with a first subset of the set of TCI states; The method of any one of aspects 3 to 5, comprising: receiving, at the MAC-CE, a second bitmap associated with a second subset of the set of TCI states.

[0133]

[0141] Aspect 7: The method of aspect 6, further comprising receiving a first code point from a set of code points, the first code point corresponding to a bit of a first bitmap and a bit of a second bitmap, and the first code point including an indication of a first TCI state of a first subset of the set of TCI states and a second TCI state of a second subset of the set of TCI states.

[0134]

[0142] Aspect 8: The method of any of aspects 6 to 7, further comprising receiving a first code point from a set of code points, the first code point corresponding to a single bit from one of the first bit map or the second bit map, and the first code point including an indication of a single TCI state of one of a first subset of the set of TCI states or a second subset of the set of TCI states, respectively.

[0135]

[0143] Aspect 9: The method of any one of aspects 1 to 8, wherein the downlink control information message includes a grant of resources for communicating with a single transmission / reception point, the single transmission / reception point including the first transmission / reception point.

[0136]

[0144] Aspect 10: A method according to any one of aspects 1 to 9, wherein the downlink control information message includes a grant of resources for communicating with a plurality of transmission / reception points, the plurality of transmission / reception points including a first transmission / reception point and a second transmission / reception point.

[0137]

[0145] Aspect 11: A method for wireless communication, the method including: transmitting control signaling to a UE that identifies a set of TCI states, wherein each TCI state in the set of TCI states is associated with a TCI state type; transmitting a MAC CE message to the UE, the MAC CE message including a set of code points, wherein each code point in the set of code points activates one or more TCI states in the set of TCI states and indicates a TCI state type for the one or more TCI states; and transmitting a downlink control information message to the UE, the downlink control information message including a grant of resources for communicating with at least a first transmission / reception point associated with a network entity and an indication of at least one TCI state of the one or more TCI states.

[0138]

[0146] Aspect 12: The method of aspect 11, wherein transmitting a MAC-CE includes transmitting a set of code points in the MAC-CE, each code point including a first indicator that identifies whether the code point indicates a single TCI state or a pair of TCI states.

[0139]

[0147] Aspect 13: A method according to any of aspects 11 to 12, wherein transmitting control signaling identifying a set of TCI states includes transmitting control signaling including an indication of a first subset of the set of TCI states associated with a TCI state type that includes uplink and an indication of a second subset of the set of TCI states associated with a TCI state type that includes downlink.

[0140]

[0148] Aspect 14: The method of aspect 13, wherein transmitting the MAC-CE includes: transmitting, at a first code point of the set of code points, a first bit indicator that identifies that the code point indicates a single TCI state; and transmitting, at least in part based on transmitting the first bit of each code point, a second indicator that identifies, at the first code point of the set of code points, whether the single TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states.

[0141]

[0149] Aspect 15: The method of any of aspects 13 to 14, wherein transmitting the MAC-CE includes: transmitting, at a first code point of the set of code points, a first bit indicator that the first code point identifies a first TCI state and a second TCI state; transmitting, at the first code point of the set of code points, a second indicator that identifies whether the first TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states; and transmitting, at the first code point of the set of code points, a third indicator that identifies whether the second TCI state is associated with the first subset of the set of TCI states or a second subset of the set of TCI states.

[0142]

[0150] Aspect 16: Transmitting a MAC-CE includes transmitting, in the MAC-CE, a first bitmap associated with a first subset of the set of TCI states; 16. The method according to any one of aspects 13-15, comprising: transmitting, at the MAC-CE, a second bitmap associated with a second subset of the set of TCI states.

[0143]

[0151] Aspect 17: The method of aspect 16, further comprising transmitting a first code point of a set of code points, the first code point corresponding to a bit of a first bitmap and a bit of a second bitmap, and the first code point including an indication of a first TCI state of a first subset of the set of TCI states and a second TCI state of a second subset of the set of TCI states.

[0144]

[0152] Aspect 18: The method of any of aspects 16 to 17, further comprising transmitting a first code point of the set of code points, the first code point corresponding to a single bit from one of the first bitmap or the second bitmap, and the first code point including an indication of a single TCI state of one of the first subset of the set of TCI states or the second subset of the set of TCI states, respectively.

[0145]

[0153] Aspect 19: The method of any one of aspects 11 to 18, wherein the downlink control information message includes a grant of resources for communicating with a single transmission / reception point, the single transmission / reception point including the first transmission / reception point.

[0146]

[0154] Aspect 20: A method according to any one of aspects 11 to 19, wherein the downlink control information message includes a resource grant for communicating with a plurality of transmission / reception points, the plurality of transmission / reception points including a first transmission / reception point and a second transmission / reception point.

[0147]

[0155] Aspect 21: An apparatus for wireless communication in a UE, comprising: a first interface that acquires, from a network entity, control signaling identifying a set of TCI states, each TCI state in the set of TCI states being associated with a TCI state type; acquires from the network entity a MAC CE message including a set of code points, each code point in the set of code points activating one or more TCI states in the set of TCI states and indicating a TCI state type for the one or more TCI states; acquires from the network entity a DCI message including a grant of resources for communicating with at least a first TRP associated with the network entity and an indication of at least one TCI state of the one or more TCI states; and the first interface or a second interface configured to output at least one message to the at least first TRP in accordance with the at least one TCI state.

[0148]

[0156] Aspect 22: The apparatus of aspect 1, wherein the first interface is further configured to obtain a set of code points in the MAC-CE, each code point including a first bit indicating whether the code point indicates a single TCI state or a pair of TCI states.

[0149]

[0157] Aspect 23: A method according to any of aspects 1 to 2, wherein the first interface is further configured to obtain control signaling including an indication of a first subset of a set of TCI states associated with a TCI state type including uplink and an indication of a second subset of a set of TCI states associated with a TCI state type including downlink.

[0150]

[0158] Aspect 24: The method of aspect 3, wherein the first interface is further configured to obtain, at a first code point of the set of code points, a first indicator that the code point identifies a single TCI state, and to receive, based at least in part on receiving the first bit of each code point, a second indicator that identifies, at the first code point of the set of code points, whether the single TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states.

[0151]

[0159] Aspect 25: A method according to any of aspects 3 to 4, wherein the first interface is further configured to obtain, at a first code point in the set of code points, a first indicator that the first code point identifies a first TCI state and a second TCI state, receive a second indicator that identifies, at the first code point in the set of code points, whether the first TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states, and receive a third indicator that identifies, at the first code point in the set of code points, whether the second TCI state is associated with the first subset of the set of TCI states or a second subset of the set of TCI states.

[0152]

[0160] Aspect 26: A first interface obtains, in a MAC-CE, a first bitmap associated with a first subset of the set of TCI states; 6. The method of any one of aspects 3 to 5, further configured to receive, at the MAC-CE, a second bitmap associated with a second subset of the set of TCI states.

[0153]

[0161] Aspect 27: The method of aspect 6, wherein the first interface is configured to obtain a first code point from a set of code points, the first code point corresponding to a bit in a first bitmap and a bit in a second bitmap, and the first code point includes an indication of a first TCI state of a first subset of the set of TCI states and a second TCI state of a second subset of the set of TCI states.

[0154]

[0162] Aspect 28: A method according to any of aspects 6 to 7, wherein the first interface is further configured to obtain a first code point from the set of code points, the first code point corresponding to a single bit from one of the first bitmap or the second bitmap, and the first code point includes an indication of a single TCI state from one of the first subset of the set of TCI states or the second subset of the set of TCI states, respectively.

[0155]

[0163] Aspect 29: The method of any one of aspects 1 to 8, wherein the downlink control information message includes a grant of resources for communicating with a single transmission / reception point, the single transmission / reception point including the first transmission / reception point.

[0156]

[0164] Aspect 30: A method according to any one of aspects 1 to 9, wherein the downlink control information message includes a grant of resources for communicating with a plurality of transmission / reception points, the plurality of transmission / reception points including a first transmission / reception point and a second transmission / reception point.

[0157]

[0165] Aspect 31: A method for wireless communications, the method including: a first interface configured to: transmit control signaling to a UE identifying a set of TCI states, wherein each TCI state among the set of TCI states is associated with a TCI state type; transmit a MAC CE message to the UE including a set of code points, wherein each code point among the set of code points activates one or more TCI states among the set of TCI states and indicates a TCI state type for the one or more TCI states; and transmit a downlink control information message to the UE including a grant of resources for communicating with at least a first transmission / reception point associated with a network entity and an indication of at least one TCI state among the one or more TCI states.

[0158]

[0166] Aspect 32: The method of aspect 11, wherein the first interface is further configured to output a set of code points in the MAC-CE, each code point including a first indicator that identifies whether the code point indicates a single TCI state or a pair of TCI states.

[0159]

[0167] Aspect 33: A method according to any of aspects 11 to 12, wherein the first interface is further configured to output control signaling including an indication of a first subset of a set of TCI states associated with a TCI state type including uplink and an indication of a second subset of a set of TCI states associated with a TCI state type including downlink.

[0160]

[0168] Aspect 34: The method of aspect 13, wherein the first interface is further configured to output, at a first code point of the set of code points, a first bit indicator that identifies that the code point indicates a single TCI state, and to transmit, based at least in part on transmitting the first bit of each code point, a second indicator that identifies whether, at the first code point of the set of code points, the single TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states.

[0161]

[0169] Aspect 35: The method of any of aspects 13 to 14, wherein the first interface is further configured to output, at a first code point of the set of code points, a first bit indicator that the first code point identifies a first TCI state and a second TCI state, transmit, at the first code point of the set of code points, a second indicator that identifies whether the first TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states, and transmit, at the first code point of the set of code points, a third indicator that identifies whether the second TCI state is associated with the first subset of the set of TCI states or a second subset of the set of TCI states.

[0162]

[0170] Aspect 36: A method according to any one of aspects 13 to 15, wherein the first interface is further configured to output, at the MAC-CE, a first bitmap associated with a first subset of the set of TCI states, and to transmit, at the MAC-CE, a second bitmap associated with a second subset of the set of TCI states.

[0163]

[0171] Aspect 37: The method of aspect 16, wherein the first interface is further configured to output a first code point of the set of code points, the first code point corresponding to a bit of the first bitmap and a bit of the second bitmap, and the first code point includes an indication of a first TCI state of a first subset of the set of TCI states and a second TCI state of a second subset of the set of TCI states.

[0164]

[0172] Aspect 38: The method of aspect 16, wherein the first interface is further configured to output a first code point of the set of code points, the first code point corresponding to a single bit from one of the first bitmap or the second bitmap, and the first code point includes an indication of a single TCI state of one of the first subset of the set of TCI states or the second subset of the set of TCI states, respectively.

[0165]

[0173] Aspect 39: The method of any one of aspects 11 to 18, wherein the downlink control information message includes a grant of resources for communicating with a single transmission / reception point, the single transmission / reception point including the first transmission / reception point.

[0166]

[0174] Aspect 40: A method according to any one of aspects 11 to 19, wherein the downlink control information message includes a grant of resources for communicating with a plurality of transmission / reception points, the plurality of transmission / reception points including a first transmission / reception point and a second transmission / reception point.

[0167]

[0175] Aspect 41: An apparatus for wireless communication in a UE, comprising: at least one means for receiving, from a network entity, control signaling identifying a set of TCI states, wherein each TCI state in the set of TCI states is associated with a TCI state type; receiving, from the network entity, a MAC CE message including a set of code points, wherein each code point in the set of code points activates one or more TCI states in the set of TCI states and indicates a TCI state type for the one or more TCI states; receiving, from the network entity, a DCI message including a grant of resources for communicating with at least a first transmission / reception point (TRP) associated with the network entity and an indication of at least one TCI state of the one or more TCI states; and communicating with the at least first TRP according to the at least one TCI state.

[0168]

[0176] Aspect 42: The apparatus of aspect 1, wherein the means for receiving a MAC-CE comprises means for receiving a set of code points in the MAC-CE, each code point including a first bit indicating whether the code point indicates a single TCI state or a pair of TCI states.

[0169]

[0177] Aspect 43: An apparatus described in any of aspects 1 to 2, wherein the means for receiving control signaling identifying a set of TCI states includes means for receiving control signaling including an indication of a first subset of the set of TCI states associated with a TCI state type including uplink and an indication of a second subset of the set of TCI states associated with a TCI state type including downlink.

[0170]

[0178] Aspect 44: The apparatus of aspect 3, wherein the means for receiving a MAC-CE includes means for receiving, at a first code point of the set of code points, a first indicator that the code point identifies a single TCI state, and receiving, based at least in part on receiving a first bit of each code point, a second indicator that identifies, at the first code point of the set of code points, whether the single TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states.

[0171]

[0179] Aspect 45: The apparatus of any of Aspects 3 to 4, wherein the means for receiving a MAC-CE includes means for receiving, at a first code point of the set of code points, a first indicator that the first code point identifies a first TCI state and a second TCI state; receiving, at the first code point of the set of code points, a second indicator that identifies whether the first TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states; and receiving, at the first code point of the set of code points, a third indicator that identifies whether the second TCI state is associated with the first subset of the set of TCI states or a second subset of the set of TCI states.

[0172]

[0180] Aspect 46: The apparatus of any one of aspects 3 to 5, wherein the means for receiving a MAC-CE includes means for receiving, in the MAC-CE, a first bitmap associated with a first subset of the set of TCI states, and receiving, in the MAC-CE, a second bitmap associated with a second subset of the set of TCI states.

[0173]

[0181] Aspect 47: The apparatus of aspect 6, further comprising means for receiving a first code point from a set of code points, the first code point corresponding to a bit of a first bitmap and a bit of a second bitmap, and the first code point including an indication of a first TCI state of a first subset of the set of TCI states and a second TCI state of a second subset of the set of TCI states.

[0174]

[0182] Aspect 48: The apparatus of any of aspects 6 to 7, further comprising means for receiving a first code point from a set of code points, the first code point corresponding to a single bit from one of the first bit map or the second bit map, and the first code point including an indication of a single TCI state of one of the first subset of the set of TCI states or the second subset of the set of TCI states, respectively.

[0175]

[0183] Aspect 49: The apparatus of any one of aspects 1 to 8, wherein the downlink control information message includes a grant of resources for communicating with a single transmission / reception point, the single transmission / reception point including the first transmission / reception point.

[0176]

[0184] Aspect 50: The apparatus of any one of aspects 1 to 9, wherein the downlink control information message includes a grant of resources for communicating with a plurality of transmission / reception points, the plurality of transmission / reception points including a first transmission / reception point and a second transmission / reception point.

[0177]

[0185] Aspect 51: An apparatus for wireless communications, comprising: transmitting control signaling to a UE identifying a set of TCI states, wherein each TCI state among the set of TCI states is associated with a TCI state type; transmitting a MAC CE message to the UE including a set of code points, wherein each code point among the set of code points activates one or more TCI states among the set of TCI states and indicates a TCI state type for the one or more TCI states; and transmitting a downlink control information message to the UE including a grant of resources for communicating with at least a first transmission / reception point associated with the network entity and an indication of at least one TCI state among the one or more TCI states.

[0178]

[0186] Aspect 52: The apparatus of aspect 11, wherein transmitting a MAC-CE includes transmitting a set of code points in the MAC-CE, each code point including a first indicator that identifies whether the code point indicates a single TCI state or a pair of TCI states.

[0179]

[0187] Aspect 53: An apparatus described in any of aspects 11 to 12, wherein transmitting control signaling identifying a set of TCI states includes transmitting control signaling including an indication of a first subset of the set of TCI states associated with a TCI state type that includes uplink and an indication of a second subset of the set of TCI states associated with a TCI state type that includes downlink.

[0180]

[0188] Aspect 54: The apparatus of aspect 13, wherein transmitting the MAC-CE includes: transmitting, at a first code point of the set of code points, a first bit indicator that identifies that the code point indicates a single TCI state; and transmitting, at the first code point of the set of code points based at least in part on transmitting the first bit of each code point, a second indicator that identifies whether the single TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states.

[0181]

[0189] Aspect 55: The apparatus of any of aspects 13-14, wherein transmitting the MAC-CE includes: transmitting, at a first code point of the set of code points, a first bit indicator that the first code point identifies a first TCI state and a second TCI state; transmitting, at the first code point of the set of code points, a second indicator that identifies whether the first TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states; and transmitting, at the first code point of the set of code points, a third indicator that identifies whether the second TCI state is associated with the first subset of the set of TCI states or a second subset of the set of TCI states.

[0182]

[0190] Aspect 56: Transmitting a MAC-CE includes transmitting, in the MAC-CE, a first bitmap associated with a first subset of the set of TCI states; 16. The apparatus of any of aspects 13-15, comprising: transmitting, at the MAC-CE, a second bitmap associated with a second subset of the set of TCI states.

[0183]

[0191] Aspect 57: The apparatus of aspect 16, further comprising: transmitting a first code point of a set of code points, the first code point corresponding to a bit of a first bitmap and a bit of a second bitmap, the first code point including an indication of a first TCI state of a first subset of the set of TCI states and a second TCI state of a second subset of the set of TCI states.

[0184]

[0192] Aspect 58: The apparatus of any of aspects 16-17, further comprising: transmitting a first code point of the set of code points, the first code point corresponding to a single bit from one of the first bitmap or the second bitmap, and the first code point including an indication of a single TCI state of one of the first subset of the set of TCI states or the second subset of the set of TCI states, respectively.

[0185]

[0193] Aspect 59: The apparatus of any of aspects 11 to 18, wherein the downlink control information message includes a grant of resources for communicating with a single transmission / reception point, the single transmission / reception point including the first transmission / reception point.

[0186]

[0194] Aspect 60: The apparatus of any one of aspects 11 to 19, wherein the downlink control information message includes a grant of resources for communicating with a plurality of transmission / reception points, the plurality of transmission / reception points including a first transmission / reception point and a second transmission / reception point.

[0187]

[0195] Aspect 61: A method for wireless communication in a UE, the method including: receiving, from a network entity, control signaling identifying a set of TCI states, where each TCI state in the set of TCI states is associated with a TCI state type; receiving, from the network entity, a MAC CE message including a set of code points, where each code point in the set of code points activates one or more TCI states in the set of TCI states and indicates a TCI state type for the one or more TCI states; receiving, from the network entity, a DCI message including a grant of resources for communicating with at least a first TRP associated with the network entity and an indication of at least one TCI state of the one or more TCI states; and communicating with the at least first TRP in accordance with the at least one TCI state.

[0188]

[0196] Aspect 62: The method of aspect 1, wherein receiving a MAC-CE is receiving a set of code points in the MAC-CE, each code point including a first bit indicating whether the code point indicates a single TCI state or a pair of TCI states.

[0189]

[0197] Aspect 63: A method according to any of aspects 1 to 2, wherein receiving control signaling identifying a set of TCI states includes receiving control signaling including an indication of a first subset of the set of TCI states associated with a TCI state type including uplink and an indication of a second subset of the set of TCI states associated with a TCI state type including downlink.

[0190]

[0198] Aspect 64: The method of aspect 3, wherein receiving a MAC-CE includes receiving, at a first code point of the set of code points, a first indicator that the code point identifies a single TCI state; and receiving, based at least in part on receiving a first bit of each code point, a second indicator that identifies, at the first code point of the set of code points, whether the single TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states.

[0191]

[0199] Aspect 65: The method of any of aspects 3 to 4, wherein receiving a MAC-CE includes receiving a first indicator at a first code point of the set of code points, the first code point identifying a first TCI state and a second TCI state; receiving a second indicator at the first code point of the set of code points, the second indicator identifying whether the first TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states; and receiving a third indicator at the first code point of the set of code points, the second indicator identifying whether the second TCI state is associated with the first subset of the set of TCI states or a second subset of the set of TCI states.

[0192]

[0200] Aspect 66: Receiving a MAC-CE includes receiving, in the MAC-CE, a first bitmap associated with a first subset of the set of TCI states; The method of any one of aspects 3 to 5, comprising: receiving, at the MAC-CE, a second bitmap associated with a second subset of the set of TCI states.

[0193]

[0201] Aspect 67: The method of aspect 6, further comprising receiving a first code point from a set of code points, the first code point corresponding to a bit in a first bitmap and a bit in a second bitmap, and the first code point including an indication of a first TCI state of a first subset of the set of TCI states and a second TCI state of a second subset of the set of TCI states.

[0194]

[0202] Aspect 68: The method of any of aspects 6 to 7, further comprising receiving a first code point from a set of code points, the first code point corresponding to a single bit from one of the first bit map or the second bit map, and the first code point including an indication of a single TCI state of one of the first subset of the set of TCI states or the second subset of the set of TCI states, respectively.

[0195]

[0203] Aspect 69: The method of any one of aspects 1 to 8, wherein the downlink control information message includes a grant of resources for communicating with a single transmission / reception point, the single transmission / reception point including the first transmission / reception point.

[0196]

[0204] Aspect 70: A method according to any one of aspects 1 to 9, wherein the downlink control information message includes a grant of resources for communicating with a plurality of transmission / reception points, the plurality of transmission / reception points including a first transmission / reception point and a second transmission / reception point.

[0197]

[0205] Aspect 71: A method for wireless communications, the method comprising: transmitting control signaling to a UE identifying a set of TCI states, wherein each TCI state in the set of TCI states is associated with a TCI state type; transmitting a MAC CE message to the UE including a set of code points, wherein each code point in the set of code points activates one or more TCI states in the set of TCI states and indicates a TCI state type for the one or more TCI states; and transmitting a downlink control information message to the UE including a grant of resources for communicating with at least a first transmission / reception point associated with a network entity and an indication of at least one TCI state of the one or more TCI states.

[0198]

[0206] Aspect 72: The method of aspect 11, wherein transmitting a MAC-CE includes transmitting a set of code points in the MAC-CE, each code point including a first indicator that identifies whether the code point indicates a single TCI state or a pair of TCI states.

[0199]

[0207] Aspect 73: A method according to any of aspects 11 to 12, wherein transmitting control signaling identifying a set of TCI states includes transmitting control signaling including an indication of a first subset of the set of TCI states associated with a TCI state type that includes uplink and an indication of a second subset of the set of TCI states associated with a TCI state type that includes downlink.

[0200]

[0208] Aspect 74: The method of aspect 13, wherein transmitting a MAC-CE includes: transmitting, at a first code point of the set of code points, a first bit indicator that identifies that the code point indicates a single TCI state; and transmitting, at least in part based on transmitting the first bit of each code point, a second indicator that identifies, at the first code point of the set of code points, whether the single TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states.

[0201]

[0209] Aspect 75: The method of any of aspects 13 to 14, wherein transmitting the MAC-CE includes: transmitting, at a first code point of the set of code points, a first bit indicator that the first code point identifies a first TCI state and a second TCI state; transmitting, at the first code point of the set of code points, a second indicator that identifies whether the first TCI state is associated with a first subset of the set of TCI states or a second subset of the set of TCI states; and transmitting, at the first code point of the set of code points, a third indicator that identifies whether the second TCI state is associated with the first subset of the set of TCI states or a second subset of the set of TCI states.

[0202]

[0210] Aspect 76: Transmitting a MAC-CE includes transmitting, in the MAC-CE, a first bitmap associated with a first subset of the set of TCI states; 16. The method according to any one of aspects 13-15, comprising: transmitting, at the MAC-CE, a second bitmap associated with a second subset of the set of TCI states.

[0203]

[0211] Aspect 77: The method of aspect 16, further comprising transmitting a first code point of a set of code points, the first code point corresponding to a bit of a first bitmap and a bit of a second bitmap, and the first code point including an indication of a first TCI state of a first subset of the set of TCI states and a second TCI state of a second subset of the set of TCI states.

[0204]

[0212] Aspect 78: The method of any of aspects 16 to 17, further comprising transmitting a first code point of the set of code points, the first code point corresponding to a single bit from one of the first bitmap or the second bitmap, and the first code point including an indication of a single TCI state of one of the first subset of the set of TCI states or the second subset of the set of TCI states, respectively.

[0205]

[0213] Aspect 79: The method of any one of aspects 11 to 18, wherein the downlink control information message includes a grant of resources for communicating with a single transmission / reception point, the single transmission / reception point including the first transmission / reception point.

[0206]

[0214] Aspect 80: A method according to any one of aspects 11 to 19, wherein the downlink control information message includes a grant of resources for communicating with a plurality of transmission / reception points, the plurality of transmission / reception points including a first transmission / reception point and a second transmission / reception point.

[0207]

[0215] As used herein, the terms "determine" or "determining" encompass a wide variety of actions, and thus "determining" can include calculating, computing, processing, deriving, investigating, looking up (e.g., via a lookup in a table, database, or another data structure), ascertaining, etc. Also, "determining" can include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), etc. Also, "determining" can include resolving, selecting, choosing, establishing, and other similar acts.

[0208]

[0216] As used herein, a phrase referring to "at least one of" a list of items refers to any combination of those items and includes single members. As an example, "at least one of a, b, or c" is intended to encompass a, b, c, ab, ac, bc, and abc.

[0209]

[0217] The various exemplary logic, logic blocks, modules, circuits, and algorithmic processes described in connection with the implementations disclosed herein may be implemented as electronic hardware, computer software, or a combination of both. The interchangeability of hardware and software has been described generally in terms of functionality and illustrated in the various exemplary components, blocks, modules, circuits, and processes described above. Whether such functionality is implemented in hardware or software depends on the particular application and design constraints imposed on the overall system.

[0210]

[0218] The hardware and data processing devices used to implement the various example logic, logic blocks, modules, and circuits described in connection with the aspects disclosed herein may be implemented or performed using general-purpose single-chip or multi-chip processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, or any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration. In some implementations, particular processes and methods may be performed by circuitry specific to a given function.

[0211]

[0219] In one or more aspects, the functions described may be implemented in hardware, digital electronic circuitry, computer software, firmware, or any combination thereof, including the structures disclosed herein and their structural equivalents. Implementations of the subject matter described herein may also be implemented as one or more computer programs, e.g., as one or more modules of computer program instructions encoded on a computer storage medium for execution by or to control the operation of a data processing apparatus.

[0212]

[0220] If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. The processes of a method or algorithm disclosed herein may be embodied in a processor-executable software module, which may reside on a computer-readable medium. Computer-readable media includes both computer storage media and communication media, including any medium that may enable a computer program to be transferred from one place to another. A storage medium may be any available medium that can be accessed by a computer. By way of example, and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer. Also, any connection may be properly termed a computer-readable medium. As used herein, disk and disc include compact discs (CDs), laser discs, optical discs, digital versatile discs (DVDs), floppy discs, and Blu-ray discs, where disks typically reproduce data magnetically and discs reproduce data optically using lasers. Combinations of the above may also be included within the scope of computer-readable media. Additionally, operations of a method or algorithm may reside on machine-readable and computer-readable media, which may be embodied in a computer program product as one or any combination or set of code and instructions.

[0213]

[0221] Various modifications to the implementations described in this disclosure may be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other implementations without departing from the spirit or scope of the disclosure. Thus, the claims are not intended to be limited to the implementations shown herein, but are to be accorded the widest scope consistent with this disclosure and the principles and features disclosed herein.

[0214]

[0222] Additionally, those skilled in the art will readily appreciate that the terms "upper" and "lower" may be used to facilitate description of the figures, indicate relative positions corresponding to the orientation of the figure on a suitably oriented page, and may not reflect the proper orientation of any implemented device.

[0215]

[0223] Some features described herein in the context of separate implementations may also be implemented in combination in a single implementation. Conversely, various features described in the context of a single implementation may also be implemented in multiple implementations separately or in any suitable subcombination. Furthermore, while features may be described above as working in several combinations and may even initially be claimed as such, one or more features from a claimed combination may be deleted from that combination, and the claimed combination may be directed to a subcombination or a variation of the subcombination.

[0216]

[0224] Similarly, although operations are shown in the figures in a particular order, this should not be understood as requiring such operations to be performed in the particular order or sequential order shown, or that all of the illustrated operations be performed, to achieve desirable results. Furthermore, the figures may generally depict another example process in the form of a flow chart. However, other operations not shown may be incorporated into the generally depicted example process. For example, one or more additional operations may be performed before, after, simultaneously with, or between any of the illustrated operations. In some situations, multitasking and parallel processing may be advantageous. Moreover, the separation of various system components in the above-described implementations should not be understood as requiring such separation in all implementations, and it should be understood that the described program components and systems may generally be integrated together in a single software product or packaged in multiple software products. Additionally, other implementations are within the scope of the following claims. In some implementations, the actions recited in the claims may be performed in a different order and still achieve desirable results. The inventions described in the claims of the present application as originally filed are set forth below. [C1] 1. An apparatus for wireless communication in a user equipment (UE), comprising: obtaining, from a network entity, control signaling identifying a set of transmission configuration indicator (TCI) states, each TCI state of the set of TCI states being associated with a TCI state type; receiving, from the network entity, a media access control (MAC) control element (CE) message comprising a set of code points, each code point in the set of code points activating one or more TCI states in the set of TCI states and indicating the TCI state type for the one or more TCI states; a first interface configured to receive, from the network entity, a downlink control information (DCI) message comprising a grant of resources for communicating with at least a first transmission / reception point (TRP) associated with the network entity and an indication of at least one TCI state of the one or more TCI states; the first interface or the second interface configured to output at least one message to the at least the first TRP according to the at least one TCI state; An apparatus comprising: [C2] 10. The apparatus of claim 1, wherein the first interface is further configured to obtain the set of code points in the MAC-CE, each code point comprising a first bit that indicates whether the code point indicates a single TCI state or a pair of TCI states. [C3] The apparatus of C1, wherein the first interface is further configured to obtain the control signaling comprising an indication of a first subset of the set of TCI states associated with the TCI state type comprising an uplink and an indication of a second subset of the set of TCI states associated with the TCI state type comprising a downlink. [C4] The first interface includes: obtaining, at a first code point of the set of code points, a first indicator that the code point identifies a single TCI state; and further configured to: obtain, based at least in part on receiving the first bit of each code point, a second indicator that identifies whether, at the first code point of the set of code points, the single TCI state is associated with the first subset of the set of TCI states or the second subset of the set of TCI states. [C5] The first interface includes: obtaining a first indicator at a first code point in the set of code points that the first code point identifies a first TCI state and a second TCI state; obtaining a second indicator that identifies, at the first code point in the set of code points, whether the first TCI state is associated with the first subset of the set of TCI states or the second subset of the set of TCI states; and obtaining a third indicator that identifies whether, at the first code point in the set of code points, the second TCI state is associated with the first subset of the set of TCI states or the second subset of the set of TCI states. [C6] The first interface is obtaining, in the MAC-CE, a first bitmap associated with the first subset of the set of TCI states; The apparatus of C3, configured to obtain, at the MAC-CE, a second bitmap associated with the second subset of the set of TCI states. [C7] The first interface includes: 10. The apparatus of claim 6, further comprising: a first code point of the set of code points, the first code point corresponding to a bit of the first bitmap and a bit of the second bitmap, the first code point comprising an indication of a first TCI state of the first subset of the set of TCI states and a second TCI state of the second subset of the set of TCI states. [C8] The first interface includes: 10. The apparatus of claim 6, wherein the apparatus is configured to obtain a first code point from the set of code points, the first code point corresponding to a single bit from one of the first bitmap or the second bitmap, the first code point comprising an indication of a single TCI state of one of the first subset of the set of TCI states or the second subset of the set of TCI states, respectively. [C9] The apparatus of C1, wherein the DCI message comprises the grant of resources for communicating with a single transmission / reception point, the single transmission / reception point comprising the first transmission / reception point. [C10] The apparatus of C1, wherein the DCI message includes the grant of resources for communicating with multiple transmission / reception points, the multiple transmission / reception points comprising the first transmission / reception point and a second transmission / reception point. [C11] 1. An apparatus for wireless communication, comprising: outputting control signaling to a user equipment (UE) identifying a set of transmission configuration indicator (TCI) states, each TCI state of the set of TCI states being associated with a TCI state type; outputting a media access control (MAC) control element (CE) message to the UE, the CE message comprising a set of code points, each code point of the set of code points activating one or more TCI states of the set of TCI states and indicating the TCI state type for the one or more TCI states; outputting a DCI message to the UE comprising a grant of resources for communicating with at least a first transmission / reception point associated with the network entity and an indication of at least one TCI state of the one or more TCI states; a first interface configured as follows: An apparatus comprising: [C12] The first interface includes: 12. The apparatus of claim 11, further configured to output the set of code points in the MAC-CE, each code point comprising a first indicator that identifies whether the code point indicates a single TCI state or a pair of TCI states. [C13] The apparatus of C11, wherein the first interface is further configured to output the control signaling comprising an indication of a first subset of the set of TCI states associated with the TCI state type comprising an uplink and an indication of a second subset of the set of TCI states associated with the TCI state type comprising a downlink. [C14] The first interface includes: outputting, at a first code point of said set of code points, a first bit indicator that identifies said code point as indicating a single TCI state; 13. The apparatus of claim 12, further configured to: transmit, at the first code point of the set of code points based at least in part on transmitting the first bit of each code point, a second indicator that identifies whether the single TCI state is associated with the first subset of the set of TCI states or the second subset of the set of TCI states at the first code point of the set of code points. [C15] The first interface includes: outputting a first bit indicator at a first code point of the set of code points that the first code point identifies a first TCI state and a second TCI state; outputting a second indicator that identifies whether, at the first code point in the set of code points, the first TCI state is associated with the first subset of the set of TCI states or the second subset of the set of TCI states; 13. The apparatus of claim 12, further configured to output a third indicator that identifies whether, at the first code point in the set of code points, the second TCI state is associated with the first subset of the set of TCI states or the second subset of the set of TCI states. [C16] The first interface is outputting, at the MAC-CE, a first bitmap associated with the first subset of the set of TCI states; The apparatus of C13, further configured to, at the MAC-CE, output a second bitmap associated with the second subset of the set of TCI states. [C17] The first interface includes: 16. The apparatus of claim 15, further configured to output a first code point of the set of code points, the first code point corresponding to a bit of the first bitmap and a bit of the second bitmap, the first code point comprising an indication of a first TCI state of the first subset of the set of TCI states and a second TCI state of the second subset of the set of TCI states. [C18] The first interface includes: 16. The apparatus of claim 15, further configured to output a first code point of the set of code points, the first code point corresponding to a single bit from one of the first bitmap or the second bitmap, the first code point comprising an indication of a single TCI state of one of the first subset of the set of TCI states or the second subset of the set of TCI states, respectively. [C19] The apparatus of C11, wherein the DCI message comprises the grant of resources for communicating with a single transmission / reception point, the single transmission / reception point comprising the first transmission / reception point. [C20] The apparatus of C11, wherein the DCI message includes the grant of resources for communicating with multiple transmission / reception points, the multiple transmission / reception points comprising the first transmission / reception point and a second transmission / reception point. [C21] 1. A method for wireless communication in a user equipment (UE), comprising: receiving control signaling from a network entity identifying a set of transmission configuration indicator (TCI) states, each TCI state of the set of TCI states being associated with a TCI state type; receiving a Media Access Control (MAC) Control Element (CE) message from the network entity comprising a set of code points, each code point in the set of code points activating one or more TCI states in the set of TCI states and indicating the TCI state type for the one or more TCI states; receiving a Downlink Control Information (DCI) message from the network entity, the DCI message comprising a grant of resources for communicating with at least a first Transmission / Reception Point (TRP) associated with the network entity and an indication of at least one TCI state of the one or more TCI states; communicating with the at least the first TRP according to the at least one TCI state; A method for providing the above. [C22] The method of claim 21, wherein receiving the MAC-CE comprises receiving the set of code points in the MAC-CE, each code point comprising a first bit indicating whether the code point indicates a single TCI state or a pair of TCI states. [C23] receiving the control signaling identifying the set of TCI states; The method of claim 21, comprising receiving the control signaling comprising an indication of a first subset of the set of TCI states associated with the TCI state type comprising an uplink and an indication of a second subset of the set of TCI states associated with the TCI state type comprising a downlink. [C24] receiving the MAC-CE receiving, at the MAC-CE, a first bitmap associated with the first subset of the set of TCI states; receiving, at the MAC-CE, a second bitmap associated with the second subset of the set of TCI states; The method of C23, comprising: [C25] The method of C24, further comprising receiving a first code point of the set of code points, the first code point corresponding to a bit of the first bitmap and a bit of the second bitmap, the first code point comprising an indication of a first TCI state of the first subset of the set of TCI states and a second TCI state of the second subset of the set of TCI states. [C26] The method of C24, further comprising receiving a first code point of the set of code points, the first code point corresponding to a single bit from one of the first bitmap or the second bitmap, the first code point comprising an indication of a single TCI state of one of the first subset of the set of TCI states or the second subset of the set of TCI states, respectively. [C27] 1. A method for wireless communication, comprising: transmitting control signaling to a user equipment (UE) identifying a set of transmission configuration indicator (TCI) states, each TCI state in the set of TCI states being associated with a TCI state type; transmitting a media access control (MAC) control element (CE) message to the UE, the CE message comprising a set of code points, each code point of the set of code points activating one or more TCI states of the set of TCI states and indicating the TCI state type for the one or more TCI states; transmitting to the UE a Downlink Control Information (DCI) message comprising a grant of resources for communicating with at least a first transmission / reception point associated with the network entity and an indication of at least one TCI state of the one or more TCI states; A method comprising: [C28] transmitting the MAC-CE The method of claim 27, comprising transmitting, in the MAC-CE, the set of code points, each code point comprising a first indicator that identifies whether the code point indicates a single TCI state or a pair of TCI states. [C29] transmitting the control signaling identifying the set of TCI states The method of claim 27, comprising transmitting the control signaling comprising an indication of a first subset of the set of TCI states associated with the TCI state type comprising an uplink and an indication of a second subset of the set of TCI states associated with the TCI state type comprising a downlink. [C30] transmitting the MAC-CE transmitting, in the MAC-CE, a first bitmap associated with the first subset of the set of TCI states; transmitting, in the MAC-CE, a second bitmap associated with the second subset of the set of TCI states; The method of C29, comprising:

Claims

1. 1. An apparatus for wireless communication in a user equipment (UE), comprising: obtain, from a network entity, control signaling identifying a set of transmission configuration indicator (TCI) states, each TCI state of the set of TCI states being associated with a TCI state type, wherein the control signaling comprises an indication of a first subset of the set of TCI states associated with the TCI state type comprising an uplink and an indication of a second subset of the set of TCI states associated with the TCI state type comprising a downlink; receiving, from the network entity, a media access control (MAC) control element (CE) message comprising a set of code points, each code point in the set of code points activating one or more TCI states in the set of TCI states and indicating the TCI state type for the one or more TCI states; a first interface configured to receive, from the network entity, a Downlink Control Information (DCI) message comprising a grant of resources for communicating with at least a first Transmission / Reception Point (TRP) associated with the network entity and an indication of at least one TCI state of the one or more TCI states; the first interface or the second interface configured to output at least one message to the at least the first TRP according to the at least one TCI state; Equipped with The first interface includes: obtaining, in the MAC-CE, a first bitmap associated with the first subset of the set of TCI states; The apparatus is configured to obtain, in the MAC-CE, a second bitmap associated with the second subset of the set of TCI states.

2. 2. The apparatus of claim 1, wherein the first interface is further configured to obtain the set of code points in the MAC-CE, each code point comprising a first bit that indicates whether the code point indicates a single TCI state or a pair of TCI states.

3. The first interface includes: obtaining, at a first code point of the set of code points, a first indicator that the code point identifies a single TCI state; 2. The apparatus of claim 1, further configured to: obtain, based at least in part on receiving a first bit of each code point, a second indicator that identifies, at the first code point of the set of code points, whether the single TCI state is associated with the first subset of the set of TCI states or the second subset of the set of TCI states.

4. The first interface includes: obtaining, at a first code point of the set of code points, a first indicator that the first code point identifies a first TCI state and a second TCI state; obtaining a second indicator that identifies, at the first code point in the set of code points, whether the first TCI state is associated with the first subset of the set of TCI states or the second subset of the set of TCI states; 2. The apparatus of claim 1, further configured to obtain a third indicator that identifies whether, at the first code point in the set of code points, the second TCI state is associated with the first subset of the set of TCI states or the second subset of the set of TCI states.

5. The first interface includes:

2. The apparatus of claim 1, configured to obtain a first code point of the set of code points, the first code point corresponding to a bit of the first bitmap and a bit of the second bitmap, the first code point comprising an indication of a first TCI state of the first subset of the set of TCI states and a second TCI state of the second subset of the set of TCI states.

6. The first interface includes:

2. The apparatus of claim 1, configured to obtain a first code point of the set of code points, the first code point corresponding to a single bit from one of the first bitmap or the second bitmap, the first code point comprising an indication of a single TCI state of the first subset of the set of TCI states or the second subset of the set of TCI states, respectively.

7. 2. The apparatus of claim 1, wherein the DCI message comprises the grant of resources for communicating with a single transmission / reception point, the single transmission / reception point comprising the first transmission / reception point.

8. 2. The apparatus of claim 1, wherein the DCI message includes the grant of resources for communicating with multiple transmission / reception points, the multiple transmission / reception points comprising the first transmission / reception point and a second transmission / reception point.

9. 1. An apparatus for wireless communication, comprising: outputting control signaling to a user equipment (UE) identifying a set of transmission configuration indicator (TCI) states, each TCI state of the set of TCI states being associated with a TCI state type, wherein the control signaling comprises an indication of a first subset of the set of TCI states associated with the TCI state type comprising an uplink and an indication of a second subset of the set of TCI states associated with the TCI state type comprising a downlink; outputting a media access control (MAC) control element (CE) message to the UE, the CE message comprising a set of code points, each code point of the set of code points activating one or more TCI states of the set of TCI states and indicating the TCI state type for the one or more TCI states; outputting a DCI message to the UE comprising a grant of resources for communicating with at least a first transmission / reception point associated with the network entity and an indication of at least one TCI state of the one or more TCI states; a first interface configured as follows: Equipped with The first interface includes: outputting, in the MAC-CE, a first bitmap associated with the first subset of the set of TCI states; The apparatus is further configured to output, at the MAC-CE, a second bitmap associated with the second subset of the set of TCI states.

10. The first interface includes:

10. The apparatus of claim 9, further configured to output the set of code points in the MAC-CE, each code point comprising a first indicator that identifies whether the code point indicates a single TCI state or a pair of TCI states.

11. The first interface includes: outputting, at a first code point of said set of code points, a first bit indicator that identifies said code point as indicating a single TCI state; 10. The apparatus of claim 9, further configured to transmit, at the first code point of the set of code points based at least in part on transmitting a first bit of each code point, a second indicator that identifies whether the single TCI state is associated with the first subset of the set of TCI states or the second subset of the set of TCI states at the first code point of the set of code points.

12. The first interface includes: outputting, at a first code point of the set of code points, a first bit indicator that the first code point identifies a first TCI state and a second TCI state; outputting a second indicator that identifies whether, at the first code point in the set of code points, the first TCI state is associated with the first subset of the set of TCI states or the second subset of the set of TCI states; 10. The apparatus of claim 9, further configured to output a third indicator that identifies whether, at the first code point in the set of code points, the second TCI state is associated with the first subset of the set of TCI states or the second subset of the set of TCI states.

13. The first interface includes:

10. The apparatus of claim 9, further configured to output a first code point of the set of code points, the first code point corresponding to a bit of the first bitmap and a bit of the second bitmap, the first code point comprising an indication of a first TCI state of the first subset of the set of TCI states and a second TCI state of the second subset of the set of TCI states.

14. The first interface includes:

10. The apparatus of claim 9, further configured to output a first code point of the set of code points, the first code point corresponding to a single bit from one of the first bitmap or the second bitmap, the first code point comprising an indication of a single TCI state of the first subset of the set of TCI states or the second subset of the set of TCI states, respectively.

15. 10. The apparatus of claim 9, wherein the DCI message comprises the grant of resources for communicating with a single transmission / reception point, the single transmission / reception point comprising the first transmission / reception point.

16. 10. The apparatus of claim 9, wherein the DCI message includes the grant of resources for communicating with multiple transmission / reception points, the multiple transmission / reception points comprising the first transmission / reception point and a second transmission / reception point.

17. 1. A method for wireless communication in a user equipment (UE), comprising: receiving control signaling from a network entity identifying a set of transmission configuration indicator (TCI) states, each TCI state of the set of TCI states being associated with a TCI state type; receiving a media access control (MAC) control element (CE) message from the network entity, the CE message comprising a set of code points, each code point in the set of code points activating one or more TCI states in the set of TCI states and indicating the TCI state type for the one or more TCI states; receiving a Downlink Control Information (DCI) message from the network entity comprising a grant of resources for communicating with at least a first Transmission / Reception Point (TRP) associated with the network entity and an indication of at least one TCI state of the one or more TCI states; communicating with the at least the first TRP according to the at least one TCI state; Equipped with Receiving the control signaling identifying the set of TCI states comprises: receiving the control signaling comprising an indication of a first subset of the set of TCI states associated with the TCI state type comprising an uplink and an indication of a second subset of the set of TCI states associated with the TCI state type comprising a downlink; Receiving the MAC-CE message includes: receiving, in the MAC-CE, a first bitmap associated with the first subset of the set of TCI states; receiving, in the MAC-CE, a second bitmap associated with the second subset of the set of TCI states; A method comprising:

18. 18. The method of claim 17, wherein receiving the MAC-CE comprises receiving the set of code points in the MAC-CE, each code point comprising a first bit that indicates whether the code point indicates a single TCI state or a pair of TCI states.

19. 18. The method of claim 17, further comprising receiving a first code point of the set of code points, the first code point corresponding to a bit of the first bitmap and a bit of the second bitmap, the first code point comprising an indication of a first TCI state of the first subset of the set of TCI states and a second TCI state of the second subset of the set of TCI states.

20. 18. The method of claim 17, further comprising receiving a first code point of the set of code points, the first code point corresponding to a single bit from one of the first bitmap or the second bitmap, the first code point comprising an indication of a single TCI state of the first subset of the set of TCI states or the second subset of the set of TCI states, respectively.

21. 1. A method for wireless communication, comprising: transmitting control signaling to a user equipment (UE) identifying a set of transmission configuration indicator (TCI) states, each TCI state in the set of TCI states being associated with a TCI state type; transmitting a media access control (MAC) control element (CE) message to the UE, the CE message comprising a set of code points, each code point of the set of code points activating one or more TCI states of the set of TCI states and indicating the TCI state type for the one or more TCI states; transmitting to the UE a Downlink Control Information (DCI) message comprising a grant of resources for communicating with at least a first transmission / reception point associated with the network entity and an indication of at least one TCI state of the one or more TCI states; Equipped with transmitting the control signaling identifying the set of TCI states transmitting the control signaling comprising an indication of a first subset of the set of TCI states associated with the TCI state type comprising an uplink and an indication of a second subset of the set of TCI states associated with the TCI state type comprising a downlink; transmitting the MAC-CE message transmitting in the MAC-CE a first bitmap associated with the first subset of the set of TCI states; transmitting in the MAC-CE a second bitmap associated with the second subset of the set of TCI states; A method comprising:

22. Transmitting the MAC-CE includes:

22. The method of claim 21, comprising transmitting, in the MAC-CE, the set of code points, each code point comprising a first indicator that identifies whether the code point indicates a single TCI state or a pair of TCI states.

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