Transmission Configuration Indicator Status Activation for Multiple Transmit-Receive Points

Abstract

Methods, systems, and devices for signaling activation of transmission configuration indication (TCI) states for multiple transmission reception points are described. A user equipment (UE) may receive at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first transmission reception point (TRP) and a second set of beam configurations associated with a second downlink shared channel from a second TRP. The UE may receive downlink control information (DCI) from the first TRP and the second TRP, the DCI indicating a first beam configuration in the first set of beam configurations and a second beam configuration in the second set of beam configurations, respectively. The UE may then decode a first downlink transmission from the first downlink shared channel according to the first beam configuration and decode a second downlink transmission from the second downlink shared channel according to the second beam configuration.

Description

[0001] Cross-reference

[0002] This patent application claims priority to International Patent Application No. PCT / CN2020 / 074475, titled "TRANSMISSION CONFIGURATION INDICATOR STATE ACTIVATION FOR MULTIPLE TRANSMISSION RECEPTION POINTS", filed on February 7, 2020 by ZHENG et al., which is assigned to the assignee of this application and is incorporated herein by reference in its entirety. Technical Field

[0003] The following generally relates to wireless communications, and more particularly, to transmission configuration indicator (TCI) state activation for multiple transmission reception points. Background Art

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasting, 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 multi-access systems include fourth-generation (4G) systems (such as Long-Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems), and fifth-generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems may employ various techniques, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multi-access communication system may include one or more base stations or one or more network access nodes, each of which simultaneously supports communication of multiple communication devices, which may also be referred to as user equipment (UE).

[0005] In some wireless communication systems, a UE may communicate with more than one transmission reception point (TRP) (e.g., in a multi-TRP configuration). Each of the more than one TRP may transmit a downlink transmission to the UE according to a beam configuration, and the UE may decode the downlink transmission from each of the more than one TRP according to the beam configuration.

[0006] Overview

[0007] The described techniques relate to improved methods, systems, devices, and apparatuses for supporting the activation of transmission configuration indication (TCI) states for multiple transmission reception points. Generally speaking, the described techniques provide an indication of a beam configuration for downlink transmission. More specifically, a user equipment (UE) may be in communication with multiple transmission reception points (TRPs). Each TRP may transmit a downlink transmission (e.g., via a physical downlink shared channel (PDSCH)) according to a beam configuration. At least one of the multiple TRPs may transmit a control message (e.g., a media access control (MAC)-control element (CE)) that indicates, for each of the multiple TRPs, a set of activated beam configurations associated with the downlink transmission. Each of the multiple TRPs may transmit downlink control information (DCI) (e.g., via a physical downlink control channel (PDCCH)) to dynamically select one of the activated beam configurations from the set of activated beam configurations for a subsequent downlink transmission from that TRP. Each TRP may transmit the downlink transmission according to the beam configuration indicated by the DCI. For example, a first TRP may transmit a first downlink transmission to the UE according to the beam configuration indicated by the DCI transmitted by the first TRP. Additionally, a second TRP may transmit a second downlink transmission to the UE according to the beam configuration indicated by the DCI transmitted by the second TRP.

[0008] A wireless communication method is described. The method may include receiving at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP; receiving, from the first TRP, a first DCI scheduling a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration from the first set of beam configurations; receiving, from the second TRP, a second DCI scheduling a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration from the second set of beam configurations; decoding the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration; and decoding the scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration.

[0009] Describes a device for wireless communication. The device 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 device to: receive at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP; receive a first DCI from the first TRP that schedules a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration from the first set of beam configurations; receive a second DCI from the second TRP that schedules a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration from the second set of beam configurations; decode the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration; and decode the scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration.

[0010] Describes another device for wireless communication. The device may include means for: receiving at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP; receiving a first DCI from the first TRP that schedules a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration from the first set of beam configurations; receiving a second DCI from the second TRP that schedules a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration from the second set of beam configurations; decoding the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration; and decoding the scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration.

[0011] A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by a processor to perform the following operations: receiving at least one control message indicating a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP; receiving a first DCI from the first TRP scheduling a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration in the first set of beam configurations; receiving a second DCI from the second TRP scheduling a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration in the second set of beam configurations; decoding the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration; and decoding the scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration.

[0012] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, receiving the at least one control message further includes operations, features, means, or instructions for the following actions: receiving a first control message including a first indication of the first set of beam configurations; and receiving a second control message including a second indication of the second set of beam configurations.

[0013] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: identifying the first beam configuration from the first set of beam configurations based on a mapping between one or more bits in the first DCI and the first set of beam configurations indicated by the first control message; and identifying the second beam configuration from the second set of beam configurations based on a mapping between one or more bits in the second DCI and the second set of beam configurations indicated by the second control message.

[0014] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, receiving the first control message may further include operations, features, means, or instructions for receiving the first control message from the first TRP; and receiving the second control message may further include operations, features, means, or instructions for receiving the second control message from the second TRP.

[0015] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: determining that the first set of beam configurations may be associated with the first downlink shared channel from the first TRP based on receiving the first control message from the first TRP; and determining that the second set of beam configurations may be associated with the second downlink shared channel from the second TRP based on receiving the second control message from the second TRP.

[0016] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: determining that the first set of beam configurations may be associated with the first downlink shared channel from the first TRP based on a first value of an indicator bit within the first control message indicating the first TRP; and determining that the second set of beam configurations may be associated with the second downlink shared channel from the second TRP based on a second value of the indicator bit within the second control message indicating the second TRP.

[0017] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: determining that the first set of beam configurations may be associated with the first downlink shared channel from the first TRP based on a first value of an indicator bit within the first control message indicating the first TRP; and determining that the second set of beam configurations may be associated with the second downlink shared channel from the second TRP based on a second value of the indicator bit within the second control message indicating the second TRP.

[0018] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: receiving a configuration message indicating a set of beam configurations associated with the first downlink shared channel and the second downlink shared channel, wherein the at least one control message indicates the first set of beam configurations and the second set of beam configurations within the set of beam configurations.

[0019] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the at least one control message includes an indicator bit corresponding to each beam configuration within the set of beam configurations; and the at least one control message indicates the first set of beam configurations and the second set of beam configurations based on values of each indicator bit corresponding to each beam configuration within the set of beam configurations.

[0020] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the configuration message may be a radio resource control message.

[0021] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, receiving the at least one control message can further include operations, features, apparatuses, or instructions for the following actions: receiving a control message that includes a first indication of the first beam configuration set and a second indication of the second beam configuration set.

[0022] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, receiving the control message can further include operations, features, apparatuses, or instructions for the following actions: receiving the control message from the first TRP.

[0023] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, receiving the control message can further include operations, features, apparatuses, or instructions for the following actions: receiving the control message from the second TRP.

[0024] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, each control message in the control message includes a first identifier set that identifies each beam configuration within the first beam configuration set and a second identifier set that identifies each beam configuration within the second beam configuration set.

[0025] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein can further include operations, features, apparatuses, or instructions for the following actions: identifying the first beam configuration from the first beam configuration set based on a mapping between one or more bits in the first DCI and the first beam configuration set indicated by the control message; and identifying the second beam configuration from the second beam configuration set based on a mapping between one or more bits in the second DCI and the second beam configuration set indicated by the control message.

[0026] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein can further include operations, features, apparatuses, or instructions for the following actions: determining the first identifier set based on the position of the first identifier set within the control message and receiving the control message from the first TRP to identify each beam configuration within the first beam configuration set; and determining the second identifier set based on the position of the second identifier set within the control message and receiving the control message from the first TRP to identify each beam configuration within the second beam configuration set.

[0027] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: determining that the first set of identifiers identifies each beam configuration within the first beam configuration set based on the position of the first set of identifiers within the one control message or one or more indicator bits within the one control message indicating at least one of the first TRP or the second TRP; and determining that the second set of identifiers identifies each beam configuration within the second beam configuration set based on the position of the second set of identifiers within the one control message or one or more indicator bits within the one control message indicating at least one of the first TRP or the second TRP.

[0028] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the one or more indicator bits include one indicator bit.

[0029] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the one or more indicator bits include two or more indicator bits, and each indicator bit corresponds to at least one identifier in the first set of identifiers or the second set of identifiers.

[0030] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the first beam configuration set includes a set of TCI states.

[0031] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the at least one control message includes a MAC-CE.

[0032] A wireless communication method is described. The method may include transmitting at least one control message that indicates a first beam configuration set associated with a first downlink shared channel from a first TRP and a second beam configuration set associated with a second downlink shared channel from a second TRP; transmitting, by the first TRP, a first DCI scheduling a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration in the first beam configuration set; transmitting, by the second TRP, a second DCI scheduling a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration in the second beam configuration set; transmitting the scheduled first downlink transmission via the first downlink shared channel according to the first beam configuration; and transmitting the scheduled second downlink transmission via the second downlink shared channel according to the second beam configuration.

[0033] A device for wireless communication is described. The device 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 device to transmit at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP; transmit, by the first TRP, a first DCI scheduling a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration in the first set of beam configurations; transmit, by the second TRP, a second DCI scheduling a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration in the second set of beam configurations; transmit the scheduled first downlink transmission via the first downlink shared channel according to the first beam configuration; and transmit the scheduled second downlink transmission via the second downlink shared channel according to the second beam configuration.

[0034] Another device for wireless communication is described. The device may include means for: transmitting at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP; transmitting, by the first TRP, a first DCI scheduling a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration in the first set of beam configurations; transmitting, by the second TRP, a second DCI scheduling a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration in the second set of beam configurations; transmitting the scheduled first downlink transmission via the first downlink shared channel according to the first beam configuration; and transmitting the scheduled second downlink transmission via the second downlink shared channel according to the second beam configuration.

[0035] A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by a processor to perform the following operations: transmitting at least one control message indicating a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP; transmitting, by the first TRP, a first DCI scheduling a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration in the first set of beam configurations; transmitting, by the second TRP, a second DCI scheduling a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration in the second set of beam configurations; transmitting the scheduled first downlink transmission through the first downlink shared channel according to the first beam configuration; and transmitting the scheduled second downlink transmission through the second downlink shared channel according to the second beam configuration.

[0036] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, transmitting the at least one control message may further include operations, features, means, or instructions for the following actions: transmitting a first control message including a first indication of the first set of beam configurations; and transmitting a second control message including a second indication of the second set of beam configurations.

[0037] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: indicating the first beam configuration from the first set of beam configurations based on a mapping between one or more bits in the first DCI and the first set of beam configurations indicated by the first control message; and indicating the second beam configuration from the second set of beam configurations based on a mapping between one or more bits in the second DCI and the second set of beam configurations indicated by the second control message.

[0038] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, transmitting the first control message may further include operations, features, means, or instructions for transmitting the first control message by the first TRP; and transmitting the second control message may further include operations, features, means, or instructions for transmitting the second control message by the second TRP.

[0039] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: indicating, based on the first control message being transmitted by the first TRP, that the first set of beam configurations may be associated with the first downlink shared channel from the first TRP; and indicating, based on the second control message being transmitted by the second TRP, that the second set of beam configurations may be associated with the second downlink shared channel from the second TRP.

[0040] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: indicating, based on a first value of the first TRP indicated by an indicator bit within the first control message, that the first set of beam configurations may be associated with the first downlink shared channel from the first TRP; and indicating, based on a second value of the second TRP indicated by the indicator bit within the second control message, that the second set of beam configurations may be associated with the second downlink shared channel from the second TRP.

[0041] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: transmitting a configuration message indicating a set of beam configurations associated with the first downlink shared channel and the second downlink shared channel, wherein the at least one control message indicates the first set of beam configurations and the second set of beam configurations within the set of beam configurations.

[0042] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the at least one control message includes an indicator bit corresponding to each beam configuration within the set of beam configurations; and the at least one control message indicates the first set of beam configurations and the second set of beam configurations based on the value of each indicator bit corresponding to each beam configuration within the set of beam configurations.

[0043] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the configuration message may be a radio resource control message.

[0044] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, transmitting the at least one control message may further include operations, features, means, or instructions for the following actions: transmitting one control message that includes a first indication of the first set of beam configurations and a second indication of the second set of beam configurations.

[0045] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, transmitting the one control message may further include operations, features, apparatuses, or instructions for the following actions: transmitting the one control message by the first TRP.

[0046] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, transmitting the one control message may further include operations, features, apparatuses, or instructions for the following actions: transmitting the one control message by the second TRP.

[0047] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, each control message in the one control message includes a first set of identifiers identifying each beam configuration within the first beam configuration set and a second set of identifiers identifying each beam configuration within the second beam configuration set.

[0048] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: indicating the first beam configuration from the first beam configuration set based on a mapping between one or more bits in the first DCI and the first beam configuration set indicated by the one control message; and indicating the second beam configuration from the second beam configuration set based on a mapping between one or more bits in the second DCI and the second beam configuration set indicated by the one control message.

[0049] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: indicating the first set of identifiers to identify each beam configuration within the first beam configuration set based on the position of the first set of identifiers within the one control message and transmitting the one control message by the first TRP; and indicating the second set of identifiers to identify each beam configuration within the second beam configuration set based on the position of the second set of identifiers within the one control message and transmitting the one control message by the first TRP.

[0050] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: indicating that the first set of identifiers identifies each beam configuration within the first set of beam configurations based on the position of the first set of identifiers within the one control message or one or more indicator bits within the one control message indicating at least one of the first TRP or the second TRP; and indicating that the second set of identifiers identifies each beam configuration within the second set of beam configurations based on the position of the second set of identifiers within the one control message or one or more indicator bits within the one control message indicating at least one of the first TRP or the second TRP.

[0051] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the one or more indicator bits include one indicator bit.

[0052] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the one or more indicator bits include more than one indicator bit, and each indicator bit corresponds to at least one identifier of the first set of identifiers or the second set of identifiers.

[0053] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the first set of beam configurations includes a set of TCI states.

[0054] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the at least one control message includes a MAC-CE. Brief Description of the Drawings

[0056] Figure 1 Illustrates an example of a wireless communication system supporting transmission configuration indication (TCI) state activation for multiple transmit receive points in accordance with aspects of the present disclosure.

[0057] Figure 2 Illustrates an example of a wireless communication system supporting TCI state activation for multiple transmit receive points in accordance with aspects of the present disclosure.

[0058] Figures 3A to 5B Illustrates an example of the configuration of a media access control (MAC)-control element (CE) supporting TCI state activation for multiple transmit receive points in accordance with aspects of the present disclosure.

[0059] Figure 6 Illustrates an example of a process flow supporting TCI state activation for multiple transmit receive points in accordance with aspects of the present disclosure.

[0060] Figure 7 and8 A block diagram of a device supporting activation of Transmit Coordination Indicator (TCI) states for multiple transmit receive points (TRPs) in accordance with aspects of the present disclosure is shown.

[0061] Figure 9 A block diagram of a User Equipment (UE) decoding manager supporting activation of TCI states for multiple TRPs in accordance with aspects of the present disclosure is shown.

[0062] Figure 10 A diagram of a system including a device supporting activation of TCI states for multiple TRPs in accordance with aspects of the present disclosure is shown.

[0063] Figure 11 and 12 A block diagram of a device supporting activation of TCI states for multiple TRPs in accordance with aspects of the present disclosure is shown.

[0064] Figure 13 A block diagram of a communication manager supporting activation of TCI states for multiple TRPs in accordance with aspects of the present disclosure is shown.

[0065] Figure 14 A diagram of a system including a device supporting activation of TCI states for multiple TRPs in accordance with aspects of the present disclosure is shown.

[0066] Figures 15 to 20 A flowchart depicting a method supporting activation of TCI states for multiple TRPs in accordance with aspects of the present disclosure is shown.

[0067] Detailed Description

[0068] In some wireless communication systems, a User Equipment (UE) may support communication with multiple transmit receive points (TRPs). For example, the UE may receive downlink transmissions (e.g., via Physical Downlink Shared Channel (PDSCH)) from multiple TRPs. Thus, the UE may utilize one or more multiplexing schemes (e.g., spatial multiplexing) to receive and decode each of the downlink transmissions from the multiple TRPs. Additionally, the UE may decode a downlink transmission based on a beam configuration associated with each of the downlink transmissions. In some wireless communication systems, a single TRP may transmit Downlink Control Information (DCI) that selects multiple beam configurations, each beam configuration associated with a downlink transmission from one of the multiple TRPs. For example, a first TRP may transmit DCI indicating a first beam configuration for subsequent downlink transmissions by the first TRP. In this example, a second TRP may not transmit DCI to the UE. That is, although the UE is in communication with multiple TRPs, the UE may receive DCI only from the first TRP.

[0069] In some other wireless communication systems, a UE may receive DCI from each of multiple TRPs. In such systems, the UE may decode downlink transmissions according to the beam configuration indicated by the DCI transmitted by the same TRP. For example, the UE may decode downlink transmissions from a first TRP according to the beam configuration indicated by the first TRP within the DCI. Additionally, the UE may decode downlink transmissions from a second TRP according to the beam configuration indicated by the second TRP within the DCI.

[0070] (e.g., transmitted by each of multiple TRPs) The DCI may indicate a beam configuration within a set of beam configurations activated by at least one media access control (MAC)-control element (CE). In a first example, one or more of the multiple TRPs may transmit a MAC-CE that activates a set of beam configurations for downlink transmissions from a single TRP. That is, the UE may receive multiple MAC-CEs (e.g., one MAC-CE for each of the multiple TRPs), each MAC-CE activating a set of beam configurations for downlink transmissions from a single TRP. Here, the UE may receive a MAC-CE from each of the TRPs, where each TRP transmits a MAC-CE that activates the beam configuration for downlink transmissions from that TRP. Additionally or alternatively, a single TRP may transmit multiple MAC-CEs that activate the beam configurations for that TRP and one or more additional TRPs. In another example, a TRP may transmit a single MAC-CE that activates a set of beam configurations for each of the multiple TRPs. That is, a single MAC-CE may activate a first set of beam configurations for a first TRP and a second set of beam configurations for a second TRP.

[0071] Aspects of the present disclosure are initially described in the context of a wireless communication system. Aspects of the present disclosure are then described in the context of MAC-CE configurations and process flows. Aspects of the present disclosure are further illustrated and described by and with reference to device diagrams, system diagrams, and flowcharts related to the activation of transmission configuration indication (TCI) states for multiple transmit receive points.

[0072] Figure 1An example of a wireless communication system 100 that supports activation of TCI states for multiple transmission and reception points in accordance with aspects of the present disclosure is described. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low latency communication, communication with low-cost and low-complexity devices, or any combination thereof.

[0073] The base stations 105 may be dispersed throughout a geographic area to form the wireless communication system 100, and may be different forms of devices or devices with different capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110, and the UEs 115 and the base stations 105 may establish one or more communication links 125 over the coverage area 110. The coverage area 110 may be an example of a geographic area over which the base stations 105 and the UEs 115 may support signal communication according to one or more radio access technologies.

[0074] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile, or stationary and mobile at different times. The UEs 115 may be different forms of devices or devices with different capabilities. In Figure 1 Some example UEs 115 are illustrated. The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, base stations 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment), as Figure 1 shown.

[0075] Each base station 105 may communicate with the core network 130, or with each other, or both. For example, the base stations 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). The base stations 105 may communicate with each other directly (e.g., directly between the base stations 105), or indirectly (e.g., via the core network 130), or both directly and indirectly over the backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, the backhaul links 120 may be or include one or more wireless links.

[0076] One or more of the base stations 105 described herein may include or may be referred to by those of ordinary skill in the art as a base transceiver station, radio base station, access point, radio transceiver, Node B, evolved Node B (eNB), next-generation Node B or Gigabit Node B (any of which may be referred to as a gNB), home Node B, home evolved Node B, or other suitable terms.

[0077] The UE 115 may include or may be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or some other suitable term, where the "device" may also be referred to as a unit, station, terminal, or client, etc. The UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, the UE 115 may include or be referred to as a wireless local loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or machine type communication (MTC) device, etc., which may be implemented in various objects such as appliances, vehicles, meters, etc.

[0078] The UE 115 described herein may be capable of communicating with various types of devices, such as other UE 115s that may sometimes act as relays, as well as base stations 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, etc., as Figure 1 shown.

[0079] The UE 115 and the base station 105 may wirelessly communicate with each other via one or more communication links 125 over one or more carriers. The term "carrier" may refer to a set of radio frequency spectrum resources that has a defined physical layer structure for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion (e.g., a bandwidth part (BWP)) of a radio frequency band that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operation, user data, or other signaling. The wireless communication system 100 may support communicating with the UE 115 using carrier aggregation or multi-carrier operation. The UE 115 may be configured to have multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used in conjunction with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0080] In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling that coordinates the operation of other carriers. A carrier may be associated with a frequency channel (e.g., an evolved universal mobile telecommunications system terrestrial radio access (E-UTRA) absolute radio frequency channel number (EARFCN)), and may be positioned according to a channel raster for discovery by UE 115. The carrier may operate in a stand-alone mode in which initial acquisition and connection may be performed by UE 115 via the carrier, or the carrier may operate in a non-stand-alone mode in which the connection is anchored using a different carrier (e.g., different carriers of the same or different radio access technologies).

[0081] The communication link 125 shown in the wireless communication system 100 may include an uplink transmission from UE 115 to the base station 105, or a downlink transmission from the base station 105 to UE 115. A carrier may carry downlink or uplink communication (e.g., in FDD mode), or may be configured to carry both downlink communication and uplink communication (e.g., in TDD mode).

[0082] One or more parameter sets may be supported for a carrier, where a parameter set may include subcarrier spacing (Δf) and cyclic prefix. A carrier may be divided into one or more BWPs having the same or different parameter sets. In some examples, UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communication for UE 115 may be limited to one or more active BWPs.

[0083] A time interval of the base station 105 or UE 115 may be expressed as a multiple of a basic time unit, which may refer, for example, to a sampling period Ts = 1 / Δf max ·N f seconds, where Δf max may represent the maximum supported subcarrier spacing, and N f may represent the maximum supported discrete Fourier transform (DFT) size. The time intervals of communication resources may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0084] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a number of code element periods (e.g., depending on the length of the cyclic prefix added before each code element period). In some wireless communication systems 100, a time slot may be further divided into a plurality of mini-time slots containing one or more code elements. Excluding the cyclic prefix, each code element period may contain one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the operating band.

[0085] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

[0086] Physical channels may be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels may be multiplexed on a downlink carrier, for example, using one or more of time division multiplexing (TDM), frequency division multiplexing (FDM), or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET)) for physical control channels may be defined by a number of symbol periods and may extend across the system bandwidth or a subset of the system bandwidth of a carrier. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more of UEs 115 may monitor or search the control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with encoded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0087] In some examples, the base station 105 may be movable and thus provide communication coverage for a mobile geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 use the same or different radio access technologies to provide coverage for various geographic coverage areas 110.

[0088] The wireless communication system 100 may be configured to support ultra-reliable communication or low-latency communication or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. The UE 115 may be designed to support ultra-reliability, low latency, or critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private communication or group communication and may be supported by one or more mission-critical services such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions may include prioritization of services, and mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency may be used interchangeably herein.

[0089] In some examples, the UE 115 may also be able to communicate directly with other UEs 115 on a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105 or may not be able to receive transmissions from the base station 105 for other reasons. In some examples, groups of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system in which each UE 115 transmits to every other UE 115 in the group. In some examples, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving the base station 105.

[0090] The core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 can be an evolved packet core (EPC) or a 5G core (5GC), and the EPC or 5GC can include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME), an access and mobility management function (AMF)), and at least one user plane entity that routes packets or interconnects to an external network (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)). The control plane entity can manage non-access stratum (NAS) functions such as the mobility, authentication, and bearer management of the UE 115 served by the base station 105 associated with the core network 130. User IP packets can be transmitted through the user plane entity, which can provide IP address allocation and other functions. The user plane entity can be connected to the network operator IP service 150. The operator IP service 150 can include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or a packet-switched streaming service.

[0091] Some network devices (such as the base station 105) can include sub-components, such as an access network entity 140, which can be an example of an access node controller (ANC). Each access network entity 140 can communicate with each UE 115 through one or more other access network transmission entities 145, which can be referred to as radio heads, intelligent radio heads, or transmit receive points (TRPs). Each access network transmission entity 145 can include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or the base station 105 can be distributed across various network devices (e.g., radio heads and ANCs) or combined into a single network device (e.g., the base station 105).

[0092] The wireless communication system 100 can operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally, the 300 MHz to 3 GHz division is referred to as the ultra-high frequency (UHF) division or the decimeter band because the wavelengths are in the range of approximately 1 decimeter to 1 meter in length. UHF waves can be blocked or redirected by buildings and environmental features, but these waves can penetrate various structures sufficiently for macrocells to provide service to the UE 115 located indoors. 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, UHF wave transmissions can be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers).

[0093] Wireless communication system 100 can utilize both licensed and unlicensed radio frequency bands. For example, wireless communication system 100 can employ licensed-assisted access (LAA), LTE-unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band (such as the 5 GHz industrial, scientific, and medical (ISM) band). When operating in an unlicensed radio frequency band, devices (such as base station 105 and UE 115) can employ carrier sensing for collision detection and avoidance. In some examples, operations in the unlicensed band can be based on a carrier aggregation configuration (e.g., LAA) in coordination with a component carrier operating in a licensed band. Operations in the unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, etc.

[0094] Base station 105 or UE 115 can be equipped with multiple antennas, which can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of base station 105 or UE 115 can be located within one or more antenna arrays or antenna panels that can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays can be co-located at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with base station 105 can be located at different geographical locations. Base station 105 can have an antenna array that has several rows and columns of antenna ports for beamforming that base station 105 can use to support communication with UE 115. Similarly, UE 115 can have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, an antenna panel can support radio frequency beamforming for signals transmitted via an antenna port.

[0095] Beamforming (which can also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., base station 105, UE 115) to shape or direct an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals communicated via antenna elements of an antenna array such that some signals propagating in a particular orientation relative to the antenna array experience constructive interference while other signals experience destructive interference. Adjustment of the signals communicated via the antenna elements can include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to the signals carried via the antenna elements associated with the device. The adjustment associated with each antenna element can be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0096] The base station 105 or the UE 115 may use beam sweeping techniques as part of beamforming operations. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted by the base station 105 multiple times in different directions. For example, the base station 105 may transmit signals according to different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by the transmitting device (such as the base station 105) or the receiving device (such as the UE 115)) to identify the beam direction used by the base station 105 for later transmission or reception.

[0097] Some signals (such as data signals associated with a particular receiving device) may be transmitted by the base station 105 in a single beam direction (e.g., the direction associated with the receiving device (such as the UE 115)). In some examples, the beam direction associated with transmission in a single beam direction may be determined based on signals transmitted in one or more beam directions. For example, the UE 115 may receive one or more signals transmitted by the base station 105 in different directions and may report to the base station 105 an indication of the signal received by the UE 115 with the highest signal quality or other acceptable signal quality.

[0098] In some examples, transmissions performed by a device (e.g., by the base station 105 or the UE 115) may use multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from the base station 105 to the UE 115). The UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. The base station 105 may transmit reference signals that may be precoded or unencoded (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)). The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel type codebook, linear combination type codebook, port selection type codebook). Although these techniques are described with reference to signals transmitted by the base station 105 in one or more directions, the UE 115 may use similar techniques for transmitting signals multiple times in different directions (e.g., for identifying the beam direction used by the UE 115 for subsequent transmission or reception) or for transmitting signals in a single direction (e.g., for transmitting data to a receiving device).

[0099] The wireless communication system 100 can be a packet-based network operating according to a hierarchical protocol stack. In the user plane, the communication of the bearer or Packet Data Convergence Protocol (PDCP) layer can be IP-based. The Radio Link Control (RLC) layer can perform packet segmentation and reassembly for communication over logical channels. The MAC layer can perform priority handling and multiplex logical channels into transport channels. The MAC layer can also use error detection techniques, error correction techniques, or both to support retransmissions at the MAC layer to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer can provide the establishment, configuration, and maintenance of the RRC connection supporting the radio bearers for user plane data between the UE 115 and the base station 105 or the core network 130. At the physical layer, the transport channels can be mapped to physical channels.

[0100] In some wireless communication systems 100, the UE 115 can support communication with multiple TRPs (e.g., multiple TRPs associated with a single base station 105, multiple TRPs associated with more than one base station 105). For example, the UE 115 can receive downlink transmissions from multiple TRPs via the PDSCH. Thus, the UE 115 can utilize one or more multiplexing schemes to receive and decode each of the downlink transmissions from the multiple TRPs. Additionally, the UE 115 can decode the downlink transmission according to the beam configuration associated with each of the downlink transmissions. In some wireless communication systems 100, a single TRP can transmit DCI that selects multiple beam configurations, each beam configuration being associated with a downlink transmission from one of the multiple TRPs. For example, the first TRP can transmit DCI indicating a first beam configuration for subsequent downlink transmissions by the first TRP. In this example, the second TRP may not transmit DCI to the UE 115. That is, although the UE 115 is in communication with multiple TRPs, the UE 115 may only receive DCI from the first TRP.

[0101] In some other wireless communication systems 100, the UE 115 can receive DCI from each of the multiple TRPs. Here, the UE 115 can decode the downlink transmission according to the beam configuration indicated by the DCI transmitted by the same TRP. For example, the UE 115 can decode the downlink transmission from the first TRP according to the beam configuration indicated by the first TRP in the DCI. Additionally, the UE 115 can decode the downlink transmission from the second TRP according to the beam configuration indicated by the second TRP in the DCI.

[0102] DCI (e.g., transmitted by each of a plurality of TRPs) may indicate a beam configuration in a set of beam configurations activated by at least one MAC-CE. In a first example, one or more of the plurality of TRPs may transmit a MAC-CE that activates a set of beam configurations for downlink transmission from a single TRP. That is, UE 115 may receive a plurality of MAC-CEs (e.g., one MAC-CE for each of the plurality of TRPs), each MAC-CE activating a set of beam configurations for downlink transmission from a single TRP. Here, UE 115 may receive a MAC-CE from each of the TRPs, where each TRP transmits a MAC-CE that activates a beam configuration for downlink transmission from that TRP. Additionally or alternatively, a single TRP may transmit a plurality of MAC-CEs that activate beam configurations for that TRP and one or more additional TRPs. In another example, a TRP may transmit a single MAC-CE that activates a set of beam configurations for each of a plurality of TRPs. That is, a single MAC-CE may activate a first set of beam configurations for a first TRP and a second set of beam configurations for a second TRP.

[0103] As used herein, TCI or TCI state is an example of a beam configuration or a specific beam configuration state, respectively, and the techniques described herein for TCI or TCI state may also be more generally applicable to beam configurations or beam configuration states other than TCI or TCI state. For example, activation or deactivation of TCI states for a set of TCI states may be more generally applicable to activation or deactivation of beam configurations for a set of beam configuration states, and so on. Similarly, the techniques described herein for beam configurations or beam configuration states may also be applicable to more specific examples of TCI or TCI state.

[0104] Similarly, MAC-CE is an example of a control message that may be used to convey a set of beam configurations (e.g., a set of TCI states), and the techniques described herein for MAC-CE (such as a specific MAC-CE format or configuration) may also be more generally applicable to other control messages formatted or configured as such. Similarly, the techniques described herein for control messages may also be more specifically applicable to MAC-CE.

[0105] Figure 2 An example of a wireless communication system 200 that supports activation of TCI states for multiple transmit receive points in accordance with aspects of the present disclosure is illustrated. In some examples, wireless communication system 200 may implement aspects of wireless communication system 100, such as UE 215, which may be an example of UE 115 as described with reference to Figure 1 Additionally, TRP 205 may be as described with reference to Figure 1An example of the described access network transport entity 145. In a wireless communication system 200, a UE 215 may be configured to communicate with multiple TRPs 205 (e.g., TRP 205-a and TRP 205-b).

[0106] The UE 215 may receive at least one RRC message 210 from at least one TRP 205. For example, the TRP 205-a may transmit an RRC message 210-a to the UE 215. Here, the TRP 205-b may transmit an RRC message 210-b or may refrain from transmitting the RRC message 210-b. In another example, the TRP 205-b may transmit an RRC message 210-b to the UE 215. Here, the TRP 205-a may transmit an RRC message 210-a or may refrain from transmitting the RRC message 210-a. In any example, the UE 215 may receive the RRC message 210 from the TRP 205-a, the TRP 205-b, or both TRPs 205. The RRC message 210 may configure a set of beam configurations (e.g., a set of TCI states) for PDSCH transmission 230 from any TRP 205 to the UE 215. For example, the RRC message 210 may configure up to 128 TCI states for the PDSCH transmission 230 (e.g., a downlink transmission from the PDSCH). Each of the different beam configurations (indicated by different TCI states) may correspond to a quasi-co-location (QCL) relationship, e.g., between different reference signal transmissions (e.g., between a downlink reference signal in a CSI-RS set and a PDSCH DMRS port). That is, the UE 215 may measure a reference signal (e.g., within the PDSCH transmission 230) using receive beamforming parameters based on the TCI state indicated for the reference signal transmission.

[0107] The RRC message 210 may optionally include an indication of a mapping scheme for the PDSCH transmission 230. That is, if the UE 215 receives more than one PDSCH transmission 230 (e.g., a PDSCH transmission 230-a from the TRP 205-a and a PDSCH transmission 230-b from the TRP 205-b), then the resources for each PDSCH transmission 230 may be mapped according to the mapping scheme. For example, the resources for each PDSCH transmission 230 may be mapped according to a frequency division multiplexing (FDM) scheme, a time division multiplexing (TDM) scheme, or a space division multiplexing (SDM) scheme, or a combination of these multiplexing schemes (such as FDM plus TDM, FDM plus SDM, or TDM plus SDM). If the RRC message 210 includes an indication of the mapping scheme, the RRC message 210 may additionally include parameters for the mapping scheme.

[0108] UE 215 may receive at least one MAC-CE 220 from at least one TRP 205. That is, UE 215 may receive at least one MAC-CE 220 and one of the MAC-CE 220 transmissions may be optional. For example, UE 215 may receive MAC-CE220-a and / or MAC-CE 220-b. The MAC-CE 220 may be a control message configured to indicate a beam configuration set from a larger beam configuration set configured by the RRC message 210. For example, when the RRC message 210 may configure up to 128 TCI states for the PDSCH transmission 230, the at least one MAC-CE 220 may activate up to 8 TCI states for the PDSCH transmission 230. Here, the at least one MAC-CE 220 may indicate a first beam configuration set for receiving the PDSCH transmission 230-a and a second beam configuration set for receiving the PDSCH transmission 230-b.

[0109] UE 215 may receive MAC-CE 220 associated with each of the PDSCH transmissions 230. That is, UE 215 may receive a first MAC-CE 220 indicating a set of beam configurations for PDSCH transmission 230-a, and UE 215 may receive a second MAC-CE 220 indicating a set of beam configurations for PDSCH transmission 230-b. In some cases, each TRP 205 may transmit a MAC-CE 220 indicating a set of beam configurations for the PDSCH transmission 230 transmitted by that TRP 205. For example, TRP 205-a may transmit a MAC-CE 220-a indicating a set of beam configurations for PDSCH transmission 230-a, and TRP 205-b may transmit a MAC-CE 220-b indicating a set of beam configurations for PDSCH transmission 230-b. Here, UE 215 may determine which PDSCH transmission 230 to apply the set of beam configurations based on which TRP 205 transmits MAC-CE 220-a. That is, UE 215 may determine to apply the set of beam configurations indicated by MAC-CE 220-a to PDSCH transmission 230-a based on receiving MAC-CE 220-a from TRP 205-a. In some other cases, TRP 205 may transmit a MAC-CE 220 indicating a set of beam configurations for the PDSCH transmission 230 transmitted by that TRP 205 or a different TRP 205. That is, TRP 205-a may transmit a MAC-CE 220-a indicating a set of beam configurations for PDSCH transmission 230-a or indicating a set of beam configurations for PDSCH transmission 230-b. Here, UE 215 may determine which PDSCH transmission 230 to apply the set of beam configurations based on the value stored in the indicator bit within MAC-CE 220. For example, UE 215 may determine to apply the set of beam configurations indicated by MAC-CE 220-b to PDSCH transmission 230-a based on the value stored in the indicator bit of MAC-CE 220-b indicating TRP 205-a.

[0110] UE 215 may receive a single MAC-CE 220 from either TRP 205-a or TRP 205-b. Here, the MAC-CE 220 may indicate a first beam configuration set corresponding to the PDSCH transmission 230-a and a second beam configuration set corresponding to the PDSCH transmission 230-b. The MAC-CE 220 may include one or more indicator bits, where the value of the indicator bit indicates whether each indicated beam configuration is associated with the first beam configuration set (e.g., corresponding to the PDSCH transmission 230-a) or the second beam configuration set (e.g., corresponding to the PDSCH transmission 230-b). Here, UE 215 may determine which beam configuration set to apply to which PDSCH transmission 230 based on the value stored in the one or more indicator bits, the order of the indicated beam configurations, or a combination of both. Thus, the at least one MAC-CE 220 may indicate to UE 215 the first beam configuration set associated with the PDSCH transmission 230-a and the second beam configuration set associated with the PDSCH transmission 230-b.

[0111] UE 215 may receive a PDCCH transmission 225-a from TRP 205-a and a PDCCH transmission 225-b from TRP 205-b. The PDCCH transmission 225 may include DCI that indicates one beam configuration for decoding the PDSCH transmission 230-a and one beam configuration for decoding the PDSCH transmission 230-b. That is, the PDCCH transmission 225-a may indicate one beam configuration in the first beam configuration set (e.g., indicated by the at least one MAC-CE 220) for decoding the PDSCH transmission 230-a. Additionally, the PDCCH transmission 225-b may indicate one beam configuration in the second beam configuration set for decoding the PDSCH transmission 230-b. The DCI within the PDCCH transmission 225 may include an index associated with the one beam configuration. Here, UE 215 may determine the one beam configuration in the beam configuration set based on the index indicated within the DCI. For example, if the second beam configuration set (e.g., associated with the PDSCH transmission 230-b) includes eight possible beam configurations, the PDCCH transmission 225-b may include a three-bit index. In some examples, the three-bit index may be referred to as a TCI code point. The index may also use more or fewer bits in the index, such as 2, 4, 5, or 6 bits. Here, if the three-bit index indicates the logical value "000", UE 215 may determine to use the first beam configuration in the second beam configuration set to decode the PDSCH transmission 230-b. Additionally, if the three-bit index indicates the logical value "011", UE 215 may determine to use the third beam configuration in the second beam configuration set to decode the PDSCH transmission 230-b..

[0112] TRP 205-a may transmit PDSCH transmission 230-a according to the one beam configuration indicated by the DCI included in PDCCH transmission 225-a (e.g., in the first beam configuration set). Additionally, TRP 205-b may transmit PDSCH transmission 230-b according to the one beam configuration indicated by the DCI included in PDCCH transmission 225-b (e.g., in the second beam configuration set). The UE 215 may decode PDSCH transmissions 230-a and 230-b according to the one beam configuration indicated by PDCCH transmissions 225-a and 225-b, respectively.

[0113] Figure 3A and 3B Illustrates an example configuration 300 of a MAC-CE 320 that supports TCI activation for multiple transmit receive points in accordance with aspects of the present disclosure. In some examples, configuration 300 may implement aspects of wireless communication systems 100 and 200, such as MAC-CE 320, which may be an example of MAC-CE 220 as described with reference to Figure 2 In addition, MAC-CE 320 may be transmitted from a TRP to a UE, as described with reference to Figure 1 and Figure 2 That is, a UE may be configured to communicate with multiple TRPs, and at least one TRP may transmit MAC-CE 320 to the UE. Each of the MAC-CEs 320 may be configured to indicate a set of beam configurations for PDSCH transmissions from the TRP.

[0114] Figure 3A Illustrates a configuration 300-a of MAC-CE 320-a. MAC-CE 320-a may be transmitted from a TRP to a UE, as described with reference to Figure 2 MAC-CE 320-a may include a reserved bit R 305, a serving cell ID field 310-a, a BWP ID field 315-a, and a set of T bit fields 325. The serving cell ID field 310-a may include five bits of data and may identify the serving cell to which MAC-CE 320 is to be applied. The BWP ID field 315-a may include two bits and may indicate the downlink BWP to which MAC-CE 320-a is applied.

[0115] Each T-bit field 325 may correspond to one of the beam configurations indicated by an RRC message. For example, the RRC message may configure up to 128 TCI states, and each T-bit field 325 may correspond to one of up to 128 TCI states. Here, the MAC-CE 320-a may include up to 128 T-bit fields 325. Each T-bit field 325 may store a logical value "0" or a logical value "1". In some cases, each T-bit field 325 storing the logical value "0" may indicate (e.g., to the UE) that the corresponding beam configuration is not in the set of beam configurations. For example, if the T-bit field 325-v stores the logical value "0", the UE may determine that the TCI state corresponding to the T-bit field 325-v is deactivated. Additionally or alternatively, each T-bit field 325 storing the logical value "1" may indicate that the corresponding beam configuration is in the set of beam configurations. For example, if the T-bit field 325-l stores the logical value "1", the UE may determine that the TCI state corresponding to the T-bit field 325-l is activated. In some cases, up to eight T-bit fields 325 may store the logical value "1". That is, the MAC-CE 320-a may indicate up to eight beam configurations for downlink transmission.

[0116] The UE can receive the MAC-CE 320-a from the TRP and determine a set of beam configurations for downlink transmission based on the MAC-CE 320-a. For example, the UE can identify the set of beam configurations by determining which T-bit fields 325 store the logical value "1" and determining that the corresponding beam configurations are included in the set of beam configurations. The UE can identify to which downlink transmission to apply the MAC-CE 320-a based on the TRP that transmits the MAC-CE 320-a. That is, the UE can identify that the MAC-CE 320-a is applied to the downlink transmission transmitted by the same TRP that transmits the MAC-CE 320-a. In some cases, the physical layer of the UE can convey to the MAC layer of the UE which TRP transmits the MAC-CE 320-a, thereby enabling the UE to determine to which downlink transmission to apply the MAC-CE 320-a. After receiving the MAC-CE 320-a, the UE can receive from the same TRP a DCI indicating one of the beam configurations in the set of beam configurations. The DCI can include a set of bits (e.g., TCI code point) for indicating one of the beam configurations in the set of beam configurations. In an example where the MAC-CE 320-a indicates a set of beam configurations including up to eight beam configurations, the set of bits in the DCI can include three bits. Here, the set of bits can indicate the beam configuration based on the order of the T-bit fields 325 indicating the set of beam configurations. An example order of the T-bit fields 325 can indicate that the T-bit field 325-a is the first T-bit field, the T-bit field 325-b is the second T-bit field, and the T-bit field 325-x is the last T-bit field. In an example of this order of the T-bit fields 325, if the set of bits indicates the logical value "000" (e.g., corresponding to the value 0), the UE can use the beam configuration corresponding to the first T-bit field 325 indicating the logical value "1" to decode the downlink transmission. Additionally or alternatively, if the set of bits indicates the logical value "011" (e.g., corresponding to the value 3), the UE can use the beam configuration corresponding to the fourth T-bit field 325 indicating the logical value "1" to decode the downlink transmission.

[0117] Figure 3B Configuration 300-b of the MAC-CE 320-b is illustrated. The MAC-CE 320-b can be transmitted from the TRP to the UE, as referred to Figure 2As described. The MAC-CE 320-b may include a P-bit field 330, a serving cell ID field 310-b, a BWP ID field 315-b, and a set of T-bit fields 335. The serving cell ID field 310-b may include five bits of data and may identify the serving cell to which the MAC-CE 320 is to be applied. The BWP ID field 315-b may include two bits and may indicate the downlink BWP to which the MAC-CE 320-b is applied. The P-bit field 330 may indicate the TRP corresponding to the MAC-CE 320-b. For example, a logical value of "0" within the P-bit field 330 may indicate a first TRP, while a logical value of "1" may indicate a second TRP. In some cases, the P-bit field 330 may represent an index of the TRP or a group index of a control resource set (CORESET) associated with the TRP.

[0118] Each T-bit field 335 may correspond to one of the beam configurations indicated by an RRC message. For example, the RRC message may configure up to 128 TCI states, and each T-bit field 335 may correspond to one of up to 128 TCI states. Here, the MAC-CE 320-b may include up to 128 T-bit fields 335. Each T-bit field 335 may store a logical value of "0" or a logical value of "1". In some cases, each T-bit field 335 storing a logical value of "0" may (e.g., to the UE) indicate that the corresponding beam configuration is not in the set of beam configurations. For example, if the T-bit field 335-v stores a logical value of "0", the UE may determine that the TCI state corresponding to the T-bit field 335-v is deactivated. Additionally or alternatively, each T-bit field 335 storing a logical value of "1" may indicate that the corresponding beam configuration is in the set of beam configurations. For example, if the T-bit field 335-l stores a logical value of "1", the UE may determine that the TCI state corresponding to the T-bit field 335-l is activated. In some cases, up to eight T-bit fields 335 may store a logical value of "1". That is, the MAC-CE 320-b may indicate up to eight beam configurations for downlink transmission.

[0119] The UE can receive MAC-CE 320-b from the TRP and determine a set of beam configurations for downlink transmission based on the MAC-CE 320-b. For example, the UE can identify the set of beam configurations by determining which T-bit fields 335 store the logical value "1" and determining that the corresponding beam configurations are included in the set of beam configurations. The UE can identify which downlink transmission to apply the MAC-CE 320-b to based on the value of the P-bit field 330 (e.g., an indicator bit field). For example, a logical value "0" in the P-bit field 330 can indicate the first TRP, and a logical value "1" in the P-bit field 330 can indicate the second TRP. The UE can then apply the MAC-CE 320-b to the downlink transmission (e.g., on the PDSCH) transmitted by the indicated TRP corresponding to the logical value of the P-bit field 330. For example, in the case where the UE detects the value "0" in the P-bit field 330 indicating the first TRP, the UE can determine to apply the MAC-CE 320-b to receive data transmission from the first TRP (e.g., on the PDSCH). Similarly, for another MAC-CE 320-b where the UE detects the logical value "1" indicating the second TRP in the P-bit field 330, the UE can apply the other MAC-CE 320-b to receive data transmission from the second TRP (e.g., on the PDSCH). After receiving the MAC-CE 320-b, the UE can receive DCI from the TRP indicated by the P-bit field 330, and the DCI indicates one of the beam configurations in the set of beam configurations indicated by the MAC-CE 320-b. As described with reference to Figure 3A As described, the DCI can include a set of bits (e.g., a TCI code point) for indicating one of the beam configurations in the set of beam configurations. For example, in the case of receiving DCI from the first TRP, the UE uses the DCI received from the first TRP (e.g., the TCI code point of the DCI) and the MAC-CE 320-b in which the UE detects the logical value "0" in the P-bit field 330 to determine the beam configuration. Similarly, in the case of receiving DCI from the second TRP, the UE uses the DCI received from the second TRP (e.g., the TCI code point of the DCI) and the MAC-CE 320-b in which the UE detects the logical value "1" in the P-bit field 330 to determine the beam configuration. In an example where the MAC-CE 320-b indicates a set of beam configurations including up to eight beam configurations, the set of bits in the DCI can include three bits. Here, the set of bits can indicate the beam configuration based on the order of the T-bit field 335 indicating the set of beam configurations. The UE can use the indicated beam configuration to decode the downlink transmission from the TRP indicated by the P-bit field 330.

[0120] Figure 4A and Figure 4BAn example of configuration 400 that supports TCI activation for multiple transmit receive points (TRPs) of a MAC - CE 420 in accordance with aspects of the present disclosure is explained. In some examples, configuration 400 may implement aspects of wireless communication systems 100 and 200 and configuration 300. For example, MAC - CE 420 may be an example of MAC - CE 220 as described with reference to Figure 2 and may include aspects of the configuration described with reference to Figure 3A and Figure 3B . Additionally, MAC - CE 420 may be transmitted from a TRP to a UE, as described with reference to Figure 1 and Figure 2 . That is, the UE may be configured to communicate with multiple TRPs, and at least one TRP may transmit MAC - CE 420 to the UE. Each MAC - CE among the MAC - CEs 420 may be configured to indicate a first set of beam configurations for a first PDSCH transmission from a first TRP and a second set of beam configurations for a second PDSCH transmission from a second TRP.

[0121] Each MAC - CE among the MAC - CEs 420 may be transmitted from a TRP to a UE, as described with reference to Figure 2 . MAC - CE 420 may include a reserved bit R 405, a serving cell ID field 410, a BWP ID field 415, a C - bit field 425, and a TCI state ID field 440. The serving cell ID field 410 - a may include five - bit data and may identify the serving cell to which MAC - CE 420 is to be applied. The BWP ID field 415 - a may include two bits and may indicate the downlink BWP to which MAC - CE 420 - a is applied. The TCI state ID field 440 may include a TCI state ID indicating one of the TCI states configured by an RRC message (e.g., as described with reference to Figure 2The C bit field 425 may indicate the condition of the subsequent TCI state ID field 440. That is, if the C bit field 425 includes a logical value of "1", the subsequent two TCI state ID fields 440 may include TCI state IDs indicating an activated TCI state (e.g., associated with the first beam configuration set or the second beam configuration set). Additionally, if the C bit field 425 includes a logical value of "0", the next TCI state ID field 440 may indicate an activated TCI state, and the subsequent TCI state ID field 440 may not indicate an activated TCI state. Here, the second TCI state ID field 440 may be excluded from the MAC-CE 420, or may be included within the MAC-CE 420 but may not include a TCI state ID value corresponding to the activated TCI state. For example, if the C bit field 425-b within the MAC-CE 420-a indicates a logical value of "0", the TCI state ID field 440-c may include a TCI state ID indicating an activated TCI state. Additionally, the TCI state ID field 440-d may not be included in the MAC-CE 420-a or may not include a TCI state ID indicating an activated TCI state.

[0122] Figure 4AConfiguration 400-a of MAC-CE 420-a is explained. The UE may receive MAC-CE 420-a from the TRP and determine a first and a second set of beam configurations for downlink transmission based on MAC-CE 420-a. Each TCI state ID field 440 of MAC-CE 420-a that is in the same line as the C-bit field 425 may indicate a beam configuration within the first set of beam configurations, and each TCI state ID field 440 of MAC-CE 420-a that is in a different line from the C-bit field 425 may indicate a beam configuration within the second set of beam configurations. The first set of beam configurations may be applied to downlink transmissions transmitted by the same TRP that transmits MAC-CE 420-a. Thus, the UE may identify the first and the second sets of beam configurations based on the position of the TCI state ID field 440 within the MAC-CE, the value of the C-bit field 425, and the TRP that transmits MAC-CE 420-a. For example, if both C-bit fields 425-a and 425-b include the logical value "1", the UE may identify that the first beam configuration includes the TCI states indicated by TCI state ID fields 440-a and 440-c. Additionally, the UE may identify that the second beam configuration includes the TCI states indicated by TCI state ID fields 440-b and 440-d. In another example, if the first C-bit field 425-a includes the logical value "0" and the second C-bit field 425-b includes the logical value "1", the UE may identify that the first beam configuration includes the TCI states indicated by TCI state ID fields 440-a and 440-c. Additionally, the UE may identify that the second beam configuration includes the TCI state indicated by TCI state ID field 440-d. In some cases (e.g., if the C-bit field 425-a includes the logical value "0"), the third line of MAC-CE 420-a may not be included in MAC-CE 420-a. That is, MAC-CE 420-a may not include R405-b or TCI state ID field 440-b.

[0123] After receiving the MAC-CE 420-a, the UE may receive DCI from each of the TRPs. Each DCI may indicate one beam configuration in the first or second beam configuration set (e.g., corresponding to the transmitting TRP). The DCI may include a set of bits (e.g., TCI code points) for indicating one beam configuration in the beam configuration set. In an example where the MAC-CE 420-a indicates a first beam configuration set including up to eight beam configurations, the set of bits in the DCI may include three bits. Here, the set of bits may indicate the beam configuration based on the order of the TCI state ID fields 440 associated with the first beam configuration set. An example order of the TCI state ID fields 440 associated with the first beam configuration set may indicate that the TCI state ID field 440-a is the first TCI state ID field 440 associated with the first beam configuration set and the TCI state ID field 440-c is the last TCI state ID field 440 associated with the first beam configuration set. In an example of this order of the TCI state ID fields 440, if the set of bits indicates the logical value "000" (e.g., corresponding to the value 0), the UE may use the beam configuration corresponding to the first TCI state ID field 440-a.

[0124] Figure 4B Configuration 400-b of the MAC-CE 420-b is illustrated. The UE may receive the MAC-CE 420-b from the TRP and determine the first and second beam configuration sets for the downlink transmission based on the MAC-CE 420-b. Each TCI state ID field 440 in the same line as the C-bit field 425 of the MAC-CE 420-b may indicate a beam configuration within the first beam configuration set, and each TCI state ID field 440 in a different line from the C-bit field 425 of the MAC-CE 420-b may indicate a beam configuration within the second beam configuration set. The first beam configuration set may be applied to the downlink transmission transmitted by the TRP indicated by the P-bit field 430. That is, the P-bit field 430 may indicate the TRP. For example, the logical value "0" within the P-bit field 430 may indicate the first TRP, while the logical value "1" may indicate the second TRP. In some cases, the P-bit field 330 may represent the index of the TRP or the group index of the CORESET associated with the TRP.

[0125] The UE can identify the first beam configuration set and the second beam configuration set based on the position of the TCI state ID field 440 within the MAC-CE, the value of the C-bit field 425, and the value of the P-bit field 430 (e.g., the indicator bit). For example, if the value indicated by the P-bit field 430 indicates the first TRP (e.g., if the value of the P-bit field 430 is "0" corresponding to the first TRP instead of "1" which could indicate the second TRP) and both the C-bit fields 425-b and 425-b include the logical value "1", then the UE can identify that the first beam configuration for the first TRP includes the TCI states indicated by the TCI state ID fields 440-e and 440-g. Additionally, the UE can identify that the second beam configuration for the second TRP includes the TCI states indicated by the TCI state ID fields 440-f and 440-h. Here, if the C-bit field 425 includes the logical value "1", the UE can ignore the P-bit field 430. In another example, if the first C-bit field 425-b includes the logical value "0" and the second C-bit field 425-b includes the logical value "1", then the UE can identify that the first beam configuration includes the TCI states indicated by the TCI state ID fields 440-e and 440-g. Additionally, the UE can identify that the second beam configuration includes the TCI state indicated by the TCI state ID field 440-h. In some cases (e.g., if the C-bit field 425-b includes the logical value "0"), the third row of the MAC-CE 420-b may not be included within the MAC-CE 420-b. That is, the MAC-CE 420-b may not include R 405-d or the TCI state ID field 440-f. In an example where the C-bit field 425 includes the logical value "0", the subsequent TCI state ID field 440 can activate the TCI state of the TRP indicated by the P-bit field 430.

[0126] After receiving the MAC-CE 420-b, the UE may receive DCI from each of the TRPs. Each DCI may indicate one beam configuration in the first or second set of beam configurations (e.g., corresponding to the transmitting TRP). The DCI may include a set of bits (e.g., TCI code points) for indicating one beam configuration in the set of beam configurations. In an example where the MAC-CE 420-b indicates a second set of beam configurations including up to eight beam configurations, the set of bits in the DCI may include three bits. Here, the set of bits may indicate the beam configuration based on the order of the TCI state ID fields 440 associated with the second set of beam configurations. An example order of the TCI state ID fields 440 associated with the first set of beam configurations may indicate that the TCI state ID field 440-f is the first TCI state ID field 440 associated with the second set of beam configurations and the TCI state ID field 440-h is the last TCI state ID field 440 associated with the second set of beam configurations. In an example of this order of the TCI state ID fields 440, if the set of bits indicates the logical value "001" (e.g., corresponding to the value 1), the UE may use the beam configuration corresponding to the second TCI state ID field 440.

[0127] Figure 5A and Figure 5B Illustrates an example of a configuration 500 of a MAC-CE 520 that supports TCI activation for multiple transmit receive points in accordance with aspects of the present disclosure. In some examples, the configuration 500 may implement aspects of the wireless communication systems 100 and 200 and the configurations 300 and 400. For example, the MAC-CE 520 may be an example of the MAC-CE 220 as described with reference to Figure 2 and may include aspects of the configuration as described with reference to Figures 3A to 4B In addition, the MAC-CE 520 may be transmitted from the TRP to the UE, as described with reference to Figure 1 and Figure 2 That is, the UE may be configured to communicate with multiple TRPs, and at least one TRP may transmit the MAC-CE 520 to the UE. Each of the MAC-CEs 520 may be configured to indicate a first set of beam configurations for a first PDSCH transmission from a first TRP and a second set of beam configurations for a second PDSCH transmission from a second TRP.

[0128] Each of the MAC-CEs 520 may be transmitted from the TRP to the UE, as described with reference to Figure 2As described. The MAC-CE 520 may include a serving cell ID field 510, a BWP ID field 515, and a TCI state ID field 540. The serving cell ID field 510-a may include five-bit data and may identify the serving cell to which the MAC-CE 520 is to be applied. The BWP ID field 515-a may include two bits and may indicate the downlink BWP applied by the MAC-CE 520-a. The TCI state ID field 540 may include a TCI state ID indicating one of the TCI states configured by an RRC message (e.g., as referred to Figure 2 as described).

[0129] Figure 5A Illustrates the configuration 500-a of the MAC-CE 520-a. The UE may receive the MAC-CE 520-a from the TRP and determine a first and a second set of beam configurations for downlink transmission based on the MAC-CE 520-a. The MAC-CE 520-a may include a C-bit field 525. The C-bit field 525 may indicate the condition of the subsequent TCI state ID field 540. That is, if the C-bit field 525 includes a logical value of "1", the subsequent two TCI state ID fields 540 may include TCI state IDs indicating the activated TCI states (e.g., associated with the first set of beam configurations or the second set of beam configurations). Additionally, if the C-bit field 525 includes a logical value of "0", the next TCI state ID field 540 may indicate the activated TCI state, and the TCI state ID fields 540 in the subsequent rows of the MAC-CE 520-a may not indicate the activated TCI state. Here, the second TCI state ID field 540 may be excluded from the MAC-CE 520, or may be included within the MAC-CE 520 but may not include the TCI state ID value corresponding to the activated TCI state. For example, if the C-bit field 525-b within the MAC-CE 520-a indicates a logical value of "0", the TCI state ID 540-c may include a TCI state ID indicating the activated TCI state. Additionally, the TCI state ID 540-a may not be included in the MAC-CE 520-a or may not include the TCI state ID 540 indicating the activated TCI state.

[0130] Each P-bit field 530 may indicate with which beam configuration the indicated TCI state ID field 540 is associated. In a first scenario, the P-bit field 530 may indicate the TRP associated with the first or second beam configuration for the TCI state ID 540-b in the same row of the MAC-CE 520-a. For example, if the P-bit field 530-b indicates the TRP associated with the first set of beam configurations and the C-bit field 525-a includes the logical value “1”, the UE may determine that the TCI state ID field 540-b indicates an active TCI state within the first set of beam configurations and the TCI state ID field 540-a indicates an active TCI state within the second set of beam configurations. In another scenario, the P-bit field 530 may indicate the TRP associated with the first or second beam configuration for the TCI state ID field 540-b in the previous row of the MAC-CE 520-a. For example, if the P-bit field 530-c indicates the TRP associated with the second set of beam configurations and the C-bit field 525-b includes the logical value “1”, the UE may determine that the TCI state ID field 540-c indicates an active TCI state within the second set of beam configurations and the TCI state ID field 540-d indicates an active TCI state within the first set of beam configurations. If the C-bit field 525 includes the logical value “0”, the UE may determine that the TCI state ID field 540 in the same row of the MAC-CE 520-a is associated with the set of beam configurations associated with the TRP indicated by the first P-bit field 530 (e.g., P-bit field 530-a). In some scenarios, the P-bit field 530 may represent an index of the TRP or a group index of the CORESET associated with the TRP.

[0131] After receiving the MAC-CE 520-a, the UE may receive DCI from each of the TRPs. Each DCI may indicate one beam configuration in the first or second set of beam configurations (e.g., corresponding to the transmitting TRP). The DCI may include a set of bits (e.g., TCI code point) for indicating one beam configuration in the set of beam configurations. The set of bits may indicate the beam configuration based on the order of the TCI state ID fields 540 associated with the first set of beam configurations.

[0132] Figure 5BConfig 500-b of MAC-CE 520-b is explained. A UE may receive MAC-CE 520-b from a TRP and determine a first and a second set of beam configurations for downlink transmission based on MAC-CE 520-b. MAC-CE 520-b may include a set of reserved R bits 505. Config 500-b may be pre-configured such that the TCI state ID fields 540 in the odd rows of MAC-CE 520-b indicate the activated TCI states of the first set of beam configurations and the TCI state ID fields 540 in the even rows of MAC-CE 520-b indicate the activated TCI states of the second set of beam configurations. In an example of config 300-b, the UE may identify the first and second sets of beam configurations based on the positions of the TCI state ID fields 540 within MAC-CE 520-b. After receiving MAC-CE 520-a, the UE may receive DCI from each of the TRPs. Each DCI may indicate one beam configuration in the first or second set of beam configurations (e.g., corresponding to the transmitting TRP). The DCI may include a set of bits (e.g., TCI code points) for indicating one beam configuration in the set of beam configurations. The set of bits may indicate the beam configuration based on the order of the TCI state ID fields 540 associated with the first set of beam configurations.

[0133] Figure 6 An example of a process flow 600 that supports TCI activation for multiple transmit-receive points is explained. In some examples, aspects of Figures 1 to 5B may be implemented by process flow 600. For example, process flow 600 may include signaling between a UE 615 and a TRP 605, which may be examples of a UE and a TRP as described with reference to Figure 1 and 2 . Additionally, some of the signaling illustrated by process flow 600 may implement configurations as described with reference to Figures 3A to 5B .

[0134] At 610-a, a first TRP 605-a may optionally transmit a configuration message (e.g., an RRC message) to the UE 615. Alternatively, at 610-b, a second TRP 605-a may optionally transmit a configuration message to the UE 615. The configuration message may indicate a set of beam configurations associated with a first downlink shared channel (e.g., used by the first TRP 605-a) and a second downlink shared channel (e.g., used by the second TRP 605-b).

[0135] At 620-a, the first TRP 605-a may optionally transmit a control message (e.g., MAC-CE) to the UE 615. At 620-b, the second TRP 605-b may optionally transmit a control message to the UE 615. That is, at 620, the UE 615 may receive at least one control message from the first TRP 605-a, the second TRP 605-b, or both TRPs 605. The at least one control message may indicate a first set of beam configurations associated with a first downlink shared channel from the first TRP 605-a and a second set of beam configurations associated with a second downlink shared channel from the second TRP 605-b. The first and second sets of beam configurations may indicate beam configurations of a set of beam configurations configured by a configuration message (e.g., an RRC message).

[0136] In one example, the UE 615 may receive a first control message indicating the first set of beam configurations and may receive a second control message indicating the second set of beam configurations from the second TRP 605-b. In another example, the UE 615 may receive a single control message indicating the first and second sets of beam configurations.

[0137] At 630, the first TRP 605-a may transmit a first DCI to the UE 615. The first DCI may schedule a first downlink transmission on the first downlink shared channel and may indicate a first beam configuration in the first set of beam configurations.

[0138] At 635, the UE 615 may identify the first beam configuration. In some cases, the UE 615 may identify the first beam configuration based on a mapping between one or more bits in the first DCI and the first set of beam configurations.

[0139] At 640, the second TRP 605-b may transmit a second DCI to the UE 615. The second DCI may schedule a second downlink transmission on the second downlink shared channel and may indicate a second beam configuration in the second set of beam configurations.

[0140] At 645, the UE 615 may identify the second beam configuration. In some cases, the UE 615 may identify the second beam configuration based on a mapping between one or more bits in the second DCI and the second set of beam configurations.

[0141] At 650-a, the UE 615 may receive a first downlink transmission from the first TRP 605-a according to the first beam configuration. Additionally, the UE 615 may decode the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration.

[0142] At 650-b, the UE 615 may receive a second downlink transmission from the second TRP 605-b according to a second beam configuration. Additionally, the UE 615 may decode a scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration.

[0143] Figure 7 FIG. 700 is a block diagram illustrating a device 705 that supports activation of TCI states for multiple transmit receive points in accordance with aspects of the present disclosure. The device 705 may be an example of aspects of the UE 115 described herein. The device 705 may include a receiver 710, a UE decoding manager 715, and a transmitter 720. The device 705 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

[0144] The receiver 710 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to activation of TCI states for multiple transmit receive points, etc.). The information may be passed to other components of the device 705. The receiver 710 may be an example of aspects of the transceiver 1020 described with reference to Figure 10 The receiver 710 may utilize a single antenna or an antenna array.

[0145] The UE decoding manager 715 may receive at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP; receive a first DCI from the first TRP that schedules a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration from the first set of beam configurations; receive a second DCI from the second TRP that schedules a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration from the second set of beam configurations; decode the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration; and decode the scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration. The UE decoding manager 715 may be an example of aspects of the UE decoding manager 1010 described herein. The actions performed by the UE decoding manager 715 as described herein may be implemented to achieve one or more potential advantages. One implementation may allow the TRP to dynamically update the beam configuration for subsequent downlink transmissions. The dynamic configuration may enable the UE to maintain communication with the base station via one or more TRPs under varying conditions.

[0146] The UE decoding manager 715 or its sub-components may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of the UE decoding manager 715 or its sub-components may be performed by a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.

[0147] The UE decoding manager 715 or its sub-components may be physically located in various positions, including being distributed such that portions of the functions are implemented by one or more physical components in different physical locations. In some examples, in accordance with various aspects of the present disclosure, the UE decoding manager 715 or its sub-components may be separate and distinct components. In some examples, in accordance with various aspects of the present disclosure, the UE decoding manager 715 or its sub-components may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in this disclosure, or a combination thereof.

[0148] The transmitter 720 may transmit signals generated by other components of the device 705. In some examples, the transmitter 720 may co-reside in a transceiver module with the receiver 710. For example, the transmitter 720 may be an example of aspects of the transceiver 1020 described with reference to Figure 10 The transmitter 720 may utilize a single antenna or an antenna array.

[0149] Figure 8 Block diagram 800 of a device 805 supporting activation of TCI states for multiple transmission reception points in accordance with aspects of the present disclosure is shown. The device 805 may be an example of aspects of the device 705 or the UE 115 described herein. The device 805 may include a receiver 810, a UE decoding manager 815, and a transmitter 845. The device 805 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

[0150] The receiver 810 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to activation of TCI states for multiple transmission reception points, etc.). The information may be passed to other components of the device 805. The receiver 810 may be an example of aspects of the transceiver 1020 described with reference to Figure 10 The receiver 810 may utilize a single antenna or an antenna array.

[0151] The UE decoding manager 815 may be an example of aspects of the UE decoding manager 715 described herein. The UE decoding manager 815 may include a control message manager 820, a first DCI manager 825, a second DCI manager 830, a first decoding manager 835, and a second decoding manager 840. The UE decoding manager 815 may be an example of aspects of the UE decoding manager 1010 described herein.

[0152] The control message manager 820 may receive at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP.

[0153] The first DCI manager 825 may receive from the first TRP a first DCI that schedules a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration in the first set of beam configurations.

[0154] The second DCI manager 830 may receive from the second TRP a second DCI that schedules a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration in the second set of beam configurations.

[0155] The first decoding manager 835 may decode the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration.

[0156] The second decoding manager 840 may decode the scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration.

[0157] The transmitter 845 may transmit signals generated by other components of the device 805. In some examples, the transmitter 845 may be co-located with the receiver 810 in a transceiver module. For example, the transmitter 845 may be an example of aspects of the transceiver 1020 described Figure 10 herein. The transmitter 845 may utilize a single antenna or an antenna array.

[0158] Figure 9FIG. 900 is a block diagram illustrating a UE decoding manager 905 that supports activation of TCI states for multiple transmit receive points in accordance with aspects of the present disclosure. The UE decoding manager 905 may be an example of aspects of the UE decoding manager 715, the UE decoding manager 815, or the UE decoding manager 1010 described herein. The UE decoding manager 905 may include a control message manager 910, a first DCI manager 915, a second DCI manager 920, a first decoding manager 925, a second decoding manager 930, a beam configuration identifier 935, a beam configuration set manager 940, and an RRC message manager 945. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0159] The control message manager 910 may receive at least one control message that indicates a first beam configuration set associated with a first downlink shared channel from a first TRP and a second beam configuration set associated with a second downlink shared channel from a second TRP. In some examples, the control message manager 910 may receive a first control message that includes a first indication of the first beam configuration set. In some cases, the control message manager 910 may receive a second control message that includes a second indication of the second beam configuration set. In some instances, receiving the first control message further includes receiving the first control message from the first TRP. In some examples, receiving the second control message further includes receiving the second control message from the second TRP. In some cases, the control message manager 910 may receive a single control message that includes a first indication of the first beam configuration set and a second indication of the second beam configuration set. In some instances, the control message manager 910 may receive the single control message from the first TRP.

[0160] In some examples, the control message manager 910 may receive the single control message from the second TRP. In some cases, the at least one control message includes an indicator bit corresponding to each beam configuration in the beam configuration set. In some instances, the at least one control message indicates the first beam configuration set and the second beam configuration set based on the value of each indicator bit corresponding to each beam configuration in the beam configuration set. In some examples, each control message in the single control message includes a first set of identifiers that identify each beam configuration within the first beam configuration set and a second set of identifiers that identify each beam configuration within the second beam configuration set. In some cases, the first beam configuration set includes a set of TCI states. In some instances, the at least one control message includes a MAC-CE.

[0161] The first DCI manager 915 may receive, from the first TRP, a first DCI scheduling a first downlink transmission on the first downlink shared channel, where the first DCI indicates a first beam configuration in the first set of beam configurations.

[0162] The second DCI manager 920 may receive, from the second TRP, a second DCI scheduling a second downlink transmission on the second downlink shared channel, where the second DCI indicates a second beam configuration in the second set of beam configurations.

[0163] The first decoding manager 925 may decode the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration.

[0164] The second decoding manager 930 may decode the scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration.

[0165] The beam configuration identifier 935 may identify the first beam configuration from the first set of beam configurations based on a mapping between one or more bits in the first DCI and the first set of beam configurations indicated by the first control message. In some examples, the beam configuration identifier 935 may identify the second beam configuration from the second set of beam configurations based on a mapping between one or more bits in the second DCI and the second set of beam configurations indicated by the second control message. In some cases, the beam configuration identifier 935 may identify the second beam configuration from the second set of beam configurations based on a mapping between one or more bits in the first DCI and the first set of beam configurations indicated by the one control message. In some instances, the beam configuration identifier 935 may identify the second beam configuration from the second set of beam configurations based on a mapping between one or more bits in the second DCI and the second set of beam configurations indicated by the one control message.

[0166] The beam configuration set manager 940 may determine that the first beam configuration set is associated with the first downlink shared channel from the first TRP based on receiving the first control message from the first TRP. In some examples, the beam configuration set manager 940 may determine that the second beam configuration set is associated with the second downlink shared channel from the second TRP based on receiving the second control message from the second TRP. In some cases, the beam configuration set manager 940 may determine that the first beam configuration set is associated with the first downlink shared channel from the first TRP based on an indication of a first value of the first TRP by an indicator bit within the first control message. In some instances, the beam configuration set manager 940 may determine that the second beam configuration set is associated with the second downlink shared channel from the second TRP based on an indication of a second value of the second TRP by an indicator bit within the second control message.

[0167] In some examples, the beam configuration set manager 940 may determine that the first set of identifiers identifies each beam configuration within the first beam configuration set based on the position of the first set of identifiers within the one control message and receiving the one control message from the first TRP. In some cases, the beam configuration set manager 940 may determine that the second set of identifiers identifies each beam configuration within the second beam configuration set based on the position of the second set of identifiers within the one control message and receiving the one control message from the second TRP. In some instances, the beam configuration set manager 940 may determine that the first set of identifiers identifies each beam configuration within the first beam configuration set based on the position of the first set of identifiers within the one control message or an indication by one or more indicator bits within the one control message of at least one of the first TRP or the second TRP. In some examples, the beam configuration set manager 940 may determine that the second set of identifiers identifies each beam configuration within the second beam configuration set based on the position of the second set of identifiers within the one control message or an indication by one or more indicator bits within the one control message of at least one of the first TRP or the second TRP. In some cases, the one or more indicator bits include one indicator bit. In some examples, the one or more indicator bits include two or more indicator bits. In some instances, each indicator bit corresponds to at least one identifier within the first set of identifiers or the second set of identifiers.

[0168] The RRC message manager 945 may receive a configuration message indicating a set of beam configurations associated with the first downlink shared channel and the second downlink shared channel, where the at least one control message indicates the first set of beam configurations and the second set of beam configurations in the set of beam configurations. In some cases, the configuration message is an RRC message.

[0169] Figure 10 FIG. shows a diagram of a system 1000 including a device 1005 that supports activation of TCI states for multiple transmission reception points, in accordance with aspects of the present disclosure. The device 1005 may be an example of, or include components of, the device 705, the device 805, or the UE 115 as described herein. The device 1005 may include components for two-way voice and data communication, which include components for transmitting and receiving communications, including a UE decoding manager 1010, an I / O controller 1015, a transceiver 1020, an antenna 1025, a memory 1030, and a processor 1040. These components may be in electronic communication via one or more buses (e.g., bus 1045).

[0170] The UE decoding manager 1010 may receive at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP; receive a first DCI from the first TRP scheduling a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration in the first set of beam configurations; receive a second DCI from the second TRP scheduling a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration in the second set of beam configurations; decode the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration; and decode the scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration.

[0171] The I / O controller 1015 may manage the input and output signals of the device 1005. The I / O controller 1015 may also manage peripheral devices not integrated into the device 1005. In some cases, the I / O controller 1015 may represent a physical connection or port to an external peripheral device. In some cases, the I / O controller 1015 may utilize an operating system, such as or another known operating system. In other instances, the I / O controller 1015 may represent or interact with a modem, a keyboard, a mouse, a touch screen, or similar devices. In some instances, the I / O controller 1015 may be implemented as part of a processor. In some instances, the user may interact with the device 1005 via the I / O controller 1015 or via the hardware components controlled by the I / O controller 1015.

[0172] The transceiver 1020 can communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1020 may represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 1020 may also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and to demodulate packets received from the antenna.

[0173] In some instances, the wireless device may include a single antenna 1025. However, in some instances, the device may have more than one antenna 1025, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.

[0174] The memory 1030 may include random access memory (RAM) and read-only memory (ROM). The memory 1030 may store computer-readable, computer-executable code 1035 that includes instructions that, when executed, cause the processor to perform the various functions described herein. In some instances, the memory 1030 may particularly contain a basic input / output system (BIOS) that may control basic hardware or software operations, such as interactions with peripheral components or devices.

[0175] The processor 1040 may include intelligent hardware devices (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some instances, the processor 1040 may be configured to operate a memory array using a memory controller. In other instances, the memory controller may be integrated into the processor 1040. The processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1030) to cause the device 1005 to perform various functions (e.g., functions or tasks supporting TCI state activation for multiple transmit receive points).

[0176] Code 1035 may include instructions for implementing aspects of the present disclosure, including instructions for supporting wireless communications. Code 1035 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, code 1035 may not be directly executable by processor 1040, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0177] Figure 11 FIG. 1100 is a block diagram illustrating a device 1105 that supports activation of TCI states for multiple transmit receive points in accordance with aspects of the present disclosure. Device 1105 may be an example of aspects of base station 105 as described herein. Device 1105 may include a receiver 1110, a communication manager 1115, and a transmitter 1120. Device 1105 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

[0178] The receiver 1110 may receive information, such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to activation of TCI states for multiple transmit receive points, etc.). The information may be passed to other components of device 1105. Receiver 1110 may be an example of aspects of transceiver 1420 described with reference to Figure 14 FIG. 1420. Receiver 1110 may utilize a single antenna or an antenna array.

[0179] The communication manager 1115 may transmit at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP; a first DCI transmitted by the first TRP that schedules a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration from the first set of beam configurations; a second DCI transmitted by the second TRP that schedules a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration from the second set of beam configurations; transmit the scheduled first downlink transmission via the first downlink shared channel according to the first beam configuration; and transmit the scheduled second downlink transmission via the second downlink shared channel according to the second beam configuration. Communication manager 1115 may be an example of aspects of communication manager 1410 described herein.

[0180] The communication manager 1115 or its sub-components may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 1115 or its sub-components may be performed by a general-purpose processor, a DSP, an application-specific integrated circuit (ASIC), an FPGA, or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.

[0181] The communication manager 1115 or its sub-components may be physically located at various positions, including being distributed such that portions of the functions are implemented by one or more physical components at different physical locations. In some examples, in accordance with various aspects of this disclosure, the communication manager 1115 or its sub-components may be separate and distinct components. In some examples, in accordance with various aspects of this disclosure, the communication manager 1115 or its sub-components may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in this disclosure, or a combination thereof.

[0182] The transmitter 1120 may transmit signals generated by other components of the device 1105. In some examples, the transmitter 1120 may be co-located with the receiver 1110 in a transceiver module. For example, the transmitter 1120 may be an example of aspects of the transceiver 1420 described with reference to Figure 14 The transmitter 1120 may utilize a single antenna or an antenna array.

[0183] Figure 12 Block diagram 1200 of a device 1205 supporting activation of TCI states for multiple transmit receive points in accordance with aspects of this disclosure is shown. The device 1205 may be an example of aspects of the device 1105 or the base station 105 described herein. The device 1205 may include a receiver 1210, a communication manager 1215, and a transmitter 1245. The device 1205 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

[0184] The receiver 1210 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to activation of TCI states for multiple transmit receive points, etc.). The information may be passed to other components of the device 1205. The receiver 1210 may be an example of aspects of the transceiver 1420 described with reference to Figure 14 The receiver 1210 may utilize a single antenna or an antenna array.

[0185] The communication manager 1215 may be an example of aspects of the communication manager 1115 as described herein. The communication manager 1215 may include a control message transmitter 1220, a first DCI transmitter 1225, a second DCI transmitter 1230, a first downlink transmitter 1235, and a second downlink transmitter 1240. The communication manager 1215 may be an example of aspects of the communication manager 1410 described herein.

[0186] The control message transmitter 1220 may transmit at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP.

[0187] The first DCI transmitter 1225 may transmit, by the first TRP, a first DCI that schedules a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration in the first set of beam configurations.

[0188] The second DCI transmitter 1230 may transmit, by the second TRP, a second DCI that schedules a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration in the second set of beam configurations.

[0189] The first downlink transmitter 1235 may transmit the scheduled first downlink transmission via the first downlink shared channel according to the first beam configuration.

[0190] The second downlink transmitter 1240 may transmit the scheduled second downlink transmission via the second downlink shared channel according to the second beam configuration.

[0191] The transmitter 1245 may transmit signals generated by other components of the device 1205. In some examples, the transmitter 1245 may be co-located with the receiver 1210 in a transceiver module. For example, the transmitter 1245 may be an example of aspects of the transceiver 1420 described with reference to Figure 14 The transmitter 1245 may utilize a single antenna or an antenna array.

[0192] Figure 13FIG. 1300 is a block diagram illustrating a communication manager 1305 that supports activation of TCI states for multiple transmit receive points in accordance with aspects of the present disclosure. The communication manager 1305 may be an example of aspects of the communication manager 1115, the communication manager 1215, or the communication manager 1410 described herein. The communication manager 1305 may include a control message transmitter 1310, a first DCI transmitter 1315, a second DCI transmitter 1320, a first downlink transmitter 1325, a second downlink transmitter 1330, a beam configuration set component 1335, and a configuration message transmitter 1340. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0193] The control message transmitter 1310 may transmit at least one control message that indicates a first beam configuration set associated with a first downlink shared channel from a first TRP and a second beam configuration set associated with a second downlink shared channel from a second TRP. In some examples, the control message transmitter 1310 may transmit a first control message that includes a first indication of the first beam configuration set. In some cases, the control message transmitter 1310 may transmit a second control message that includes a second indication of the second beam configuration set. In some instances, transmitting the first control message further includes transmitting the first control message by the first TRP. In some examples, transmitting the second control message further includes transmitting the second control message by the second TRP.

[0194] In some examples, the control message transmitter 1310 may transmit one control message that includes a first indication of the first beam configuration set and a second indication of the second beam configuration set. In some cases, the control message transmitter 1310 may transmit the one control message by the first TRP. In some instances, the control message transmitter 1310 may transmit the one control message by the second TRP. In some examples, the at least one control message includes indicator bits corresponding to each beam configuration in the beam configuration set. In some cases, the at least one control message indicates the first beam configuration set and the second beam configuration set based on the values of each indicator bit corresponding to each beam configuration in the beam configuration set. In some instances, each control message in the one control message includes a first set of identifiers that identify each beam configuration within the first beam configuration set and a second set of identifiers that identify each beam configuration within the second beam configuration set. In some cases, the first beam configuration set includes a set of TCI states. In some cases, the at least one control message includes a MAC-CE.

[0195] The first DCI transmitter 1315 may transmit, by the first TRP, a first DCI for scheduling a first downlink transmission on the first downlink shared channel, where the first DCI indicates a first beam configuration in the first set of beam configurations.

[0196] The second DCI transmitter 1320 may transmit, by the second TRP, a second DCI for scheduling a second downlink transmission on the second downlink shared channel, where the second DCI indicates a second beam configuration in the second set of beam configurations.

[0197] The first downlink transmitter 1325 may transmit the scheduled first downlink transmission via the first downlink shared channel according to the first beam configuration.

[0198] The second downlink transmitter 1330 may transmit the scheduled second downlink transmission via the second downlink shared channel according to the second beam configuration.

[0199] The beam configuration set component 1335 may indicate the first beam configuration from the first set of beam configurations based on a mapping between one or more bits in the first DCI and the first set of beam configurations indicated by the first control message. In some examples, the beam configuration set component 1335 may indicate the second beam configuration from the second set of beam configurations based on a mapping between one or more bits in the second DCI and the second set of beam configurations indicated by the second control message. In some cases, the beam configuration set component 1335 may indicate that the first set of beam configurations is associated with the first downlink shared channel from the first TRP based on the first TRP transmitting the first control message. In some instances, the beam configuration set component 1335 may indicate that the second set of beam configurations is associated with the second downlink shared channel from the second TRP based on the second TRP transmitting the second control message. In some examples, the beam configuration set component 1335 may indicate that the first set of beam configurations is associated with the first downlink shared channel from the first TRP based on a first value of an indicator bit in the first control message indicating the first TRP.

[0200] In some examples, the beam configuration set component 1335 may indicate that the second beam configuration set is associated with the second downlink shared channel from the second TRP based on the indication of the second value of the indicator bit in the second control message. In some cases, the beam configuration set component 1335 may indicate the first beam configuration from the first beam configuration set based on the mapping between one or more bits in the first DCI and the first beam configuration set indicated by the one control message. In some instances, the beam configuration set component 1335 may indicate the second beam configuration from the second beam configuration set based on the mapping between one or more bits in the second DCI and the second beam configuration set indicated by the one control message. In some examples, the beam configuration set component 1335 may indicate that the first identifier set identifies each beam configuration in the first beam configuration set based on the position of the first identifier set in the one control message and the transmission of the one control message by the first TRP.

[0201] In some examples, the beam configuration set component 1335 may indicate that the second identifier set identifies each beam configuration in the second beam configuration set based on the position of the second identifier set in the one control message and the transmission of the one control message by the second TRP. In some cases, the beam configuration set component 1335 may indicate that the first identifier set identifies each beam configuration in the first beam configuration set based on the position of the first identifier set in the one control message or one or more indicator bits in the one control message indicating at least one of the first TRP or the second TRP. In some instances, the beam configuration set component 1335 may indicate that the second identifier set identifies each beam configuration in the second beam configuration set based on the position of the second identifier set in the one control message or one or more indicator bits in the one control message indicating at least one of the first TRP or the second TRP. In some cases, the one or more indicator bits include one indicator bit. In some examples, the one or more indicator bits include more than one indicator bit. In some cases, each indicator bit corresponds to at least one identifier in the first identifier set or the second identifier set.

[0202] The configuration message transmitter 1340 may transmit a configuration message indicating the beam configuration sets associated with the first downlink shared channel and the second downlink shared channel, where the at least one control message indicates the first beam configuration set and the second beam configuration set in the beam configuration sets. In some cases, the configuration message is an RRC message.

[0203] Figure 14FIG. 1400 illustrates a system 1400 including a device 1405 that supports activation of TCI states for multiple transmission reception points (TRPs) in accordance with aspects of the present disclosure. The device 1405 may be an example of or include a component of a device 1105, a device 1205, or a base station 105 as described herein. The device 1405 may include components for two-way voice and data communication, including components for transmitting and receiving communications, including a communication manager 1410, a network communication manager 1415, a transceiver 1420, an antenna 1425, a memory 1430, a processor 1440, and an inter-station communication manager 1445. These components may be in electronic communication via one or more buses (e.g., bus 1450).

[0204] The communication manager 1410 may transmit at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP; a first DCI transmitted by the first TRP that schedules a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration in the first set of beam configurations; a second DCI transmitted by the second TRP that schedules a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration in the second set of beam configurations; transmit the scheduled first downlink transmission via the first downlink shared channel according to the first beam configuration; and transmit the scheduled second downlink transmission via the second downlink shared channel according to the second beam configuration.

[0205] The network communication manager 1415 may manage communication with a core network (e.g., via one or more wired backhaul links). For example, the network communication manager 1415 may manage delivery of data communication for client devices such as one or more UEs 115.

[0206] The transceiver 1420 may communicate bi-directionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1420 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 1420 may also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and to demodulate packets received from the antenna.

[0207] In some instances, a wireless device may include a single antenna 1425. However, in some instances, the device may have more than one antenna 1425, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.

[0208] Memory 1430 may include RAM, ROM, or a combination thereof. Memory 1430 may store computer-readable code 1435 including instructions that, when executed by a processor (e.g., processor 1440), cause the device to perform the various functions described herein. In some instances, memory 1430 may particularly include BIOS, which may control basic hardware or software operations, such as interactions with peripheral components or devices.

[0209] Processor 1440 may include intelligent hardware devices (e.g., a general-purpose processor, DSP, CPU, microcontroller, ASIC, FPGA, programmable logic device, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some instances, processor 1440 may be configured to operate a memory array using a memory controller. In some instances, the memory controller may be integrated into processor 1440. Processor 1440 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1430) to cause device 1405 to perform various functions (e.g., functions or tasks supporting TCI state activation for multiple transmit receive points).

[0210] The inter-station communication manager 1445 may manage communication with other base stations 105 and may include a controller or scheduler for collaboratively controlling communication with UE 115 with other base stations 105. For example, the inter-station communication manager 1445 may coordinate the scheduling of transmissions to UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, the inter-station communication manager 1445 may provide an X2 interface within the LTE / LTE-A wireless communication network technology to provide communication between base stations 105.

[0211] Code 1435 may include instructions for implementing aspects of the present disclosure, including instructions for supporting wireless communication. Code 1435 may be stored on a non-transitory computer-readable medium, such as system memory or other types of memory. In some instances, code 1435 may not be directly executable by processor 1440, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0212] Figure 15 A flowchart illustrating a method 1500 for supporting TCI state activation for multiple transmit receive points in accordance with aspects of the present disclosure is shown. Operations of method 1500 may be implemented by UE 115 or its components as described herein. For example, operations of method 1500 may be performed by, as referred to in Figures 7 to 10performed by the described UE decoding manager. In some examples, the UE may execute an instruction set to control functional elements of the UE to perform the following functions. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the following functions.

[0213] At 1505, the UE may receive at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP. The operation of 1505 may be performed according to the methods described herein. In some examples, aspects of the operation of 1505 may be performed by a control message manager as described with reference to Figures 7 to 10 the described control message manager.

[0214] At 1510, the UE may receive a first DCI from the first TRP that schedules a first downlink transmission on the first downlink shared channel, where the first DCI indicates a first beam configuration in the first set of beam configurations. The operation of 1510 may be performed according to the methods described herein. In some examples, aspects of the operation of 1510 may be performed by a first DCI manager as described with reference to Figures 7 to 10 the described first DCI manager.

[0215] At 1515, the UE may receive a second DCI from the second TRP that schedules a second downlink transmission on the second downlink shared channel, where the second DCI indicates a second beam configuration in the second set of beam configurations. The operation of 1515 may be performed according to the methods described herein. In some examples, aspects of the operation of 1515 may be performed by a second DCI manager as described with reference to Figures 7 to 10 the described second DCI manager.

[0216] At 1520, the UE may decode the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration. The operation of 1520 may be performed according to the methods described herein. In some examples, aspects of the operation of 1520 may be performed by a first decoding manager as described with reference to Figures 7 to 10 the described first decoding manager.

[0217] At 1525, the UE may decode the scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration. The operation of 1525 may be performed according to the methods described herein. In some examples, aspects of the operation of 1525 may be performed by a second decoding manager as described with reference to Figures 7 to 10 the described second decoding manager.

[0218] Figure 16FIG. 1600 is a flow chart illustrating a method 1600 for supporting activation of TCI states for multiple transmission reception points in accordance with aspects of the present disclosure. Operations of method 1600 may be implemented by a UE 115 or components thereof as described herein. For example, operations of method 1600 may be performed by a UE decoding manager as described with reference to Figures 7 to 10 As described. In some examples, the UE may execute an instruction set to control functional elements of the UE to perform the following functions. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the following functions.

[0219] At 1605, the UE may receive a first control message that includes a first indication indicating a first set of beam configurations associated with a first downlink shared channel from a first TRP. The operation of 1605 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1605 may be performed by a control message manager as described with reference to Figures 7 to 10 As described.

[0220] At 1610, the UE may receive a second control message that includes a second indication of a second set of beam configurations associated with a second downlink shared channel from a second TRP. The operation of 1610 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1610 may be performed by a control message manager as described with reference to Figures 7 to 10 As described.

[0221] At 1615, the UE may receive a first DCI from the first TRP that schedules a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration in the first set of beam configurations. The operation of 1615 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1615 may be performed by a first DCI manager as described with reference to Figures 7 to 10 As described.

[0222] At 1620, the UE may receive a second DCI from the second TRP that schedules a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration in the second set of beam configurations. The operation of 1620 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1620 may be performed by a second DCI manager as described with reference to Figures 7 to 10 As described.

[0223] At 1625, the UE may decode the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration. The operation of 1625 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1625 may be performed by a manager as described with reference to Figures 7 to 10Performed by the first decoding manager described above.

[0224] At 1630, the UE may decode a scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration. The operation at 1630 may be performed according to the method described herein. In some examples, aspects of the operation at 1630 may be performed by a second decoding manager as described with reference to Figures 7 to 10 Performed by the second decoding manager described above.

[0225] Figure 17 A flowchart of a method 1700 for supporting activation of TCI states for multiple transmit receive points in accordance with aspects of the present disclosure is shown. The operations of method 1700 may be implemented by a UE 115 or its components as described herein. For example, the operations of method 1700 may be performed by a UE decoding manager as described with reference to Figures 7 to 10 Performed by the UE decoding manager described above. In some examples, the UE may execute an instruction set to control functional elements of the UE to perform the following functions. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the following functions.

[0226] At 1705, the UE may receive a control message that includes a first indication of a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second indication of a second set of beam configurations associated with a second downlink shared channel from a second TRP. The operation at 1705 may be performed according to the method described herein. In some examples, aspects of the operation at 1705 may be performed by a control message manager as described with reference to Figures 7 to 10 Performed by the control message manager described above.

[0227] At 1710, the UE may receive a first DCI from the first TRP that schedules a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration in the first set of beam configurations. The operation at 1710 may be performed according to the method described herein. In some examples, aspects of the operation at 1710 may be performed by a first DCI manager as described with reference to Figures 7 to 10 Performed by the first DCI manager described above.

[0228] At 1715, the UE may receive a second DCI from the second TRP that schedules a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration in the second set of beam configurations. The operation at 1715 may be performed according to the method described herein. In some examples, aspects of the operation at 1715 may be performed by a second DCI manager as described with reference to Figures 7 to 10 Performed by the second DCI manager described above.

[0229] At 1720, the UE may decode a scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration. The operations at 1720 may be performed according to the methods described herein. In some examples, aspects of the operations at 1720 may be performed by a first decoding manager as described with reference to Figures 7 to 10 as described.

[0230] At 1725, the UE may decode a scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration. The operations at 1725 may be performed according to the methods described herein. In some examples, aspects of the operations at 1725 may be performed by a second decoding manager as described with reference to Figures 7 to 10 as described.

[0231] Figure 18 A flowchart illustrating a method 1800 for supporting activation of TCI states for multiple transmit receive points in accordance with aspects of the present disclosure is shown. The operations of method 1800 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of method 1800 may be performed by a communication manager as described with reference to Figures 11 to 14 as described. In some examples, the base station may execute an instruction set to control functional elements of the base station to perform the following functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the following functions.

[0232] At 1805, the base station may transmit at least one control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP. The operations at 1805 may be performed according to the methods described herein. In some examples, aspects of the operations at 1805 may be performed by a control message transmitter as described with reference to Figures 11 to 14 as described.

[0233] At 1810, the base station may transmit, from the first TRP, a first DCI that schedules a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration from the first set of beam configurations. The operations at 1810 may be performed according to the methods described herein. In some examples, aspects of the operations at 1810 may be performed by a first DCI transmitter as described with reference to Figures 11 to 14 as described.

[0234] In 1815, the base station may transmit, by the second TRP, a second DCI for scheduling a second downlink transmission on the second downlink shared channel, where the second DCI indicates a second beam configuration in the second set of beam configurations. The operations of 1815 may be performed according to the methods described herein. In some examples, aspects of the operations of 1815 may be performed by a control second DCI transmitter as described with reference to Figures 11 to 14 as described.

[0235] In 1820, the base station may transmit a scheduled first downlink transmission via the first downlink shared channel according to the first beam configuration. The operations of 1820 may be performed according to the methods described herein. In some examples, aspects of the operations of 1820 may be performed by a first downlink transmitter as described with reference to Figures 11 to 14 as described.

[0236] In 1825, the base station may transmit a scheduled second downlink transmission via the second downlink shared channel according to the second beam configuration. The operations of 1825 may be performed according to the methods described herein. In some examples, aspects of the operations of 1825 may be performed by a second downlink transmitter as described with reference to Figures 11 to 14 as described.

[0237] Figure 19 A flowchart of a method 1900 is shown that illustrates support for TCI state activation for multiple transmit receive points according to aspects of the present disclosure. The operations of method 1900 may be implemented by a base station 105 or its components as described herein. For example, the operations of method 1900 may be performed by a communication manager as described with reference to Figures 11 to 14 as described. In some examples, the base station may execute an instruction set to control functional elements of the base station to perform the following functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the following functions.

[0238] In 1905, the base station may transmit a first control message that includes an indication indicating a first set of beam configurations associated with a first downlink shared channel from a first TRP. The operations of 1905 may be performed according to the methods described herein. In some examples, aspects of the operations of 1905 may be performed by a control message transmitter as described with reference to Figures 11 to 14 as described.

[0239] In 1910, the base station may transmit a second control message that includes an indication of a second set of beam configurations associated with a second downlink shared channel from a second TRP. The operations of 1910 may be performed according to the methods described herein. In some examples, aspects of the operations of 1910 may be performed by a control message transmitter as described with reference to Figures 11 to 14 as described.

[0240] In 1915, the base station may transmit, by the first TRP, a first DCI that schedules a first downlink transmission on the first downlink shared channel, where the first DCI indicates a first beam configuration in the first set of beam configurations. The operations of 1915 may be performed according to the methods described herein. In some examples, aspects of the operations of 1915 may be performed by controlling a first DCI transmitter as described with reference to Figures 11 to 14 what is described.

[0241] In 1920, the base station may transmit, by the second TRP, a second DCI that schedules a second downlink transmission on the second downlink shared channel, where the second DCI indicates a second beam configuration in the second set of beam configurations. The operations of 1920 may be performed according to the methods described herein. In some examples, aspects of the operations of 1920 may be performed by a second DCI transmitter as described with reference to Figures 11 to 14 what is described.

[0242] In 1925, the base station may transmit a scheduled first downlink transmission via the first downlink shared channel according to the first beam configuration. The operations of 1925 may be performed according to the methods described herein. In some examples, aspects of the operations of 1925 may be performed by a first downlink transmitter as described with reference to Figures 11 to 14 what is described.

[0243] In 1930, the base station may transmit a scheduled second downlink transmission via the second downlink shared channel according to the second beam configuration. The operations of 1930 may be performed according to the methods described herein. In some examples, aspects of the operations of 1930 may be performed by a second downlink transmitter as described with reference to Figures 11 to 14 what is described.

[0244] Figure 20 A flowchart illustrates a method 2000 that supports activation of TCI states for multiple transmit receive points in accordance with aspects of the present disclosure. The operations of method 2000 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of method 2000 may be performed by a communication manager as described with reference to Figures 11 to 14 what is described. In some examples, the base station may execute an instruction set to control functional elements of the base station to perform the following functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the following functions.

[0245] In 2005, a base station may transmit a control message that indicates a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP. The operations of 2005 may be performed according to the methods described herein. In some examples, aspects of the operations of 2005 may be performed by a control message transmitter as described with reference to Figures 11 to 14 as described.

[0246] In 2010, the base station may transmit, from the first TRP, a first DCI that schedules a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration from the first set of beam configurations. The operations of 2010 may be performed according to the methods described herein. In some examples, aspects of the operations of 2010 may be performed by a first DCI transmitter as described with reference to Figures 11 to 14 as described.

[0247] In 2015, the base station may transmit, from the second TRP, a second DCI that schedules a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration from the second set of beam configurations. The operations of 2015 may be performed according to the methods described herein. In some examples, aspects of the operations of 2015 may be performed by a second DCI transmitter as described with reference to Figures 11 to 14 as described.

[0248] In 2020, the base station may transmit the scheduled first downlink transmission via the first downlink shared channel according to the first beam configuration. The operations of 2020 may be performed according to the methods described herein. In some examples, aspects of the operations of 2020 may be performed by a first downlink transmitter as described with reference to Figures 11 to 14 as described.

[0249] In 2025, the base station may transmit the scheduled second downlink transmission via the second downlink shared channel according to the second beam configuration. The operations of 2025 may be performed according to the methods described herein. In some examples, aspects of the operations of 2025 may be performed by a second downlink transmitter as described with reference to Figures 11 to 14 as described.

[0250] An overview of aspects of the present disclosure is provided below:

[0251] Aspect 1: A method for wireless communication, comprising: receiving at least one control message, the at least one control message indicating a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP; receiving, from the first TRP, a first DCI scheduling a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration in the first set of beam configurations; receiving, from the second TRP, a second DCI scheduling a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration in the second set of beam configurations; decoding the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration; and decoding the scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration.

[0252] Aspect 2: The method of aspect 1, wherein receiving the at least one control message further comprises: receiving a first control message comprising a first indication of the first set of beam configurations; and receiving a second control message comprising a second indication of the second set of beam configurations.

[0253] Aspect 3: The method of aspect 2, further comprising: identifying the first beam configuration from the first set of beam configurations at least in part based on a mapping between one or more bits in the first DCI and the first set of beam configurations indicated by the first control message; and identifying the second beam configuration from the second set of beam configurations at least in part based on a mapping between one or more bits in the second DCI and the second set of beam configurations indicated by the second control message.

[0254] Aspect 4: The method of any one of aspects 2 to 3, wherein receiving the first control message further comprises: receiving the first control message from the second TRP; and receiving the second control message further comprises receiving the second control message from the second TRP.

[0255] Aspect 5: The method of aspect 4, further comprising: determining that the first set of beam configurations is associated with the first downlink shared channel from the first TRP at least in part based on a first value of an indicator bit in the first control message indicating the first TRP; and determining that the second set of beam configurations is associated with the second downlink shared channel from the second TRP at least in part based on a second value of the indicator in the second control message indicating the second TRP.

[0256] Aspect 6: The method of any one of Aspects 2 to 5 further includes: determining that the first beam configuration set is associated with the first downlink shared channel from the first TRP at least in part based on an indicator bit in the first control message indicating a first value of the first TRP; and determining that the second beam configuration set is associated with the second downlink shared channel from the second TRP at least in part based on an indicator bit in the second control message indicating a second value of the second TRP.

[0257] Aspect 7: The method of any one of Aspects 1 to 6 further includes: receiving a configuration message indicating a plurality of beam configurations associated with the first downlink shared channel and the second downlink shared channel, wherein the at least one control message indicates the first beam configuration set and the second beam configuration set from the plurality of beam configurations.

[0258] Aspect 8: The method of Aspect 7, wherein the at least one control message includes an indicator bit corresponding to each beam configuration in the plurality of beam configurations; and the at least one control message indicates the first beam configuration set and the second beam configuration set at least in part based on the value of each indicator bit corresponding to each beam configuration in the plurality of beam configurations.

[0259] Aspect 9: The method of any one of Aspects 7 to 8, wherein the configuration message is a radio resource control message.

[0260] Aspect 10: The method of any one of Aspects 1 to 9, wherein receiving the at least one control message further includes: receiving a single control message, the single control message including a first indication of the first beam configuration set and a second indication of the second beam configuration set.

[0261] Aspect 11: The method of Aspect 10, wherein receiving the single control message further includes: receiving the single control message from the first TRP.

[0262] Aspect 12: The method of any one of Aspects 10 to 11, wherein receiving the single control message further includes: receiving the single control message from the second TRP.

[0263] Aspect 13: The method of any one of Aspects 10 to 12, wherein each control message in the single control message includes a first set of identifiers identifying each beam configuration within the first beam configuration set and a second set of identifiers identifying each beam configuration within the second beam configuration set.

[0264] Aspect 14: The method as in aspect 13 further comprises: identifying the first beam configuration from the first set of beam configurations at least partially based on a mapping between one or more bits in the first DCI and the first set of beam configurations indicated by the one control message; and identifying the second beam configuration from the second set of beam configurations at least partially based on a mapping between one or more bits in the second DCI and the second set of beam configurations indicated by the one control message.

[0265] Aspect 15: The method as in any one of aspects 13 to 14 further comprises: determining the first set of identifiers to identify each beam configuration in the first set of beam configurations at least partially based on the position of the first set of identifiers within the one control message and receiving the one control message from the first TRP; and determining the second set of identifiers to identify each beam configuration in the second set of beam configurations at least partially based on the position of the second set of identifiers within the one control message and receiving the one control message from the second TRP.

[0266] Aspect 16: The method as in any one of aspects 13 to 15 further comprises: determining the first set of identifiers to identify each beam configuration in the first set of beam configurations at least partially based on the position of the first set of identifiers within the one control message or one or more indicator bits within the one control message indicating at least one of the first TRP or the second TRP; and determining the second set of identifiers to identify each beam configuration in the second set of beam configurations at least partially based on the position of the second set of identifiers within the one control message or one or more indicator bits within the one control message indicating at least one of the first TRP or the second TRP.

[0267] Aspect 17: The method as in aspect 16, wherein the one or more indicator bits comprise one indicator bit.

[0268] Aspect 18: The method as in any one of aspects 16 to 17, wherein the one or more indicator bits comprise two or more indicator bits, and each indicator bit corresponds to at least one identifier in the first set of identifiers or the second set of identifiers.

[0269] Aspect 19: The method as in any one of aspects 1 to 18, wherein the first set of beam configurations comprises a set of TCI states.

[0270] Aspect 20: The method as in any one of aspects 1 to 19, wherein the at least one control message comprises a MAC-CE.

[0271] Aspect 21: A method for wireless communication, comprising: transmitting at least one control message, the at least one control message indicating a first set of beam configurations associated with a first downlink shared channel from a first TRP and a second set of beam configurations associated with a second downlink shared channel from a second TRP; transmitting, by the first TRP, a first DCI scheduling a first downlink transmission on the first downlink shared channel, the first DCI indicating a first beam configuration in the first set of beam configurations; transmitting, by the second TRP, a second DCI scheduling a second downlink transmission on the second downlink shared channel, the second DCI indicating a second beam configuration in the second set of beam configurations; transmitting the scheduled first downlink transmission via the first downlink shared channel according to the first beam configuration; and transmitting the scheduled second downlink transmission via the second downlink shared channel according to the second beam configuration.

[0272] Aspect 22: The method of aspect 21, wherein transmitting the at least one control message further comprises: transmitting a first control message comprising a first indication of the first set of beam configurations; and transmitting a second control message comprising a second indication of the second set of beam configurations.

[0273] Aspect 23: The method of aspect 22, further comprising: indicating the first beam configuration from the first set of beam configurations at least in part based on a mapping between one or more bits in the first DCI and the first set of beam configurations indicated by the first control message; and indicating the second beam configuration from the second set of beam configurations at least in part based on a mapping between one or more bits in the second DCI and the second set of beam configurations indicated by the second control message.

[0274] Aspect 24: The method of any one of aspects 22 to 23, wherein transmitting the first control message further comprises: transmitting the first control message by the second TRP; and transmitting the second control message further comprises transmitting the second control message by the second TRP.

[0275] Aspect 25: The method of aspect 24, further comprising: indicating that the first set of beam configurations is associated with the first downlink shared channel from the first TRP at least in part based on the first TRP transmitting the first control message; and indicating that the second set of beam configurations is associated with the second downlink shared channel from the second TRP at least in part based on the second TRP transmitting the second control message.

[0276] Aspect 26: The method of any one of aspects 22 to 25 further includes: indicating that the first beam configuration set is associated with the first downlink shared channel from the first TRP, at least in part based on a first value of an indicator bit within the first control message indicating the first TRP; and indicating that the second beam configuration set is associated with the second downlink shared channel from the second TRP, at least in part based on a second value of the indicator bit within the second control message indicating the second TRP.

[0277] Aspect 27: The method of any one of aspects 21 to 26 further includes: transmitting a configuration message indicating a plurality of beam configurations associated with the first downlink shared channel and the second downlink shared channel, wherein the at least one control message indicates the first beam configuration set and the second beam configuration set from among the plurality of beam configurations.

[0278] Aspect 28: The method of aspect 27, wherein the at least one control message includes an indicator bit corresponding to each beam configuration among the plurality of beam configurations; and the at least one control message indicates the first beam configuration set and the second beam configuration set at least in part based on the value of each indicator bit corresponding to each beam configuration among the plurality of beam configurations.

[0279] Aspect 29: The method of any one of aspects 27 to 28, wherein the configuration message is a radio resource control message.

[0280] Aspect 30: The method of any one of aspects 21 to 29, wherein transmitting the at least one control message further includes: transmitting one control message that includes a first indication of the first beam configuration set and a second indication of the second beam configuration set.

[0281] Aspect 31: The method of aspect 30, wherein transmitting the at least one control message further includes: transmitting the one control message by the first TRP.

[0282] Aspect 32: The method of any one of aspects 30 to 31, wherein transmitting the one control message further includes: transmitting the one control message by the second TRP.

[0283] Aspect 33: The method of any one of aspects 30 to 32, wherein each control message within the one control message includes a first set of identifiers identifying each beam configuration within the first beam configuration set and a second set of identifiers identifying each beam configuration within the second beam configuration set.

[0284] Aspect 34: The method of aspect 33 further includes: indicating the first beam configuration from the first set of beam configurations at least partially based on a mapping between one or more bits in the first DCI and the first set of beam configurations indicated by the one control message; and indicating the second beam configuration from the second set of beam configurations at least partially based on a mapping between one or more bits in the second DCI and the second set of beam configurations indicated by the one control message.

[0285] Aspect 35: The method of any one of aspects 33 to 34 further includes: indicating the first set of identifiers to identify each beam configuration within the first set of beam configurations at least partially based on the position of the first set of identifiers within the one control message and the transmission of the one control message by the first TRP; and indicating the second set of identifiers to identify each beam configuration within the second set of beam configurations at least partially based on the position of the second set of identifiers within the one control message and the transmission of the one control message by the second TRP.

[0286] Aspect 36: The method of any one of aspects 33 to 35 further includes: indicating the first set of identifiers to identify each beam configuration within the first set of beam configurations at least partially based on the position of the first set of identifiers within the one control message or one or more indicator bits within the one control message indicating at least one of the first TRP or the second TRP; and indicating the second set of identifiers to identify each beam configuration within the second set of beam configurations at least partially based on the position of the second set of identifiers within the one control message or one or more indicator bits within the one control message indicating at least one of the first TRP or the second TRP.

[0287] Aspect 37: The method of aspect 36, wherein the one or more indicator bits include one indicator bit.

[0288] Aspect 38: The method of any one of aspects 36 to 37, wherein the one or more indicator bits include more than one indicator bit, and each indicator bit corresponds to at least one identifier in the first set of identifiers or the second set of identifiers.

[0289] Aspect 39: The method of any one of aspects 21 to 38, wherein the first set of beam configurations includes a set of TCI states.

[0290] Aspect 40: The method of any one of aspects 21 to 39, wherein the at least one control message includes a MAC-CE.

[0291] Aspect 41: A device for wireless communication, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform the method of any one of Aspects 1 to 20.

[0292] Aspect 42: A device for wireless communication, comprising at least one means for performing the method of any one of Aspects 1 to 20.

[0293] Aspect 43: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of any one of Aspects 1 to 20.

[0294] Aspect 44: A device for wireless communication, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform the method of any one of Aspects 21 to 40.

[0295] Aspect 45: A device for wireless communication, comprising at least one means for performing the method of any one of Aspects 21 to 40.

[0296] Aspect 46: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of any one of Aspects 21 to 40.

[0297] It should be noted that the methods described herein describe possible implementations, and the operations and steps may be rearranged or otherwise modified and other implementations are possible. In addition, aspects from two or more methods may be combined.

[0298] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes and the LTE, LTE-A, LTE-A Pro, or NR terminology may be used in most of the description, the techniques described herein may also be applied to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applied to various other wireless communication systems such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0299] The information and signals described in this document can be represented using any of a variety of different arts and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof.

[0300] The various illustrative blocks and components described in connection with the disclosure herein can be implemented or performed with a general-purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0301] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored on or transmitted via a computer-readable medium as one or more instructions or code. Other examples and implementations fall within the scope of the disclosure and the appended claims. For example, due to the nature of software, the functions described herein can be implemented using software, hardware, firmware, hardwiring, or any combination thereof executed by a processor. The features implementing the functions can also be physically located in various places, including being distributed such that portions of the functions are implemented at different physical locations.

[0302] A computer-readable medium includes both a non-transitory computer storage medium and a communication medium including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a general purpose or special purpose computer, or a general purpose or special purpose processor. Likewise, any connection is properly termed a computer-readable medium. For example, if software is transferred from a web site, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. As used herein, the terms "disk" and "disc" include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, where disks typically reproduce data magnetically and discs reproduce data optically with lasers. Combinations of the above media are also included within the scope of computer-readable media.

[0303] As used herein, including in the claims, the "or" used in a list of items (e.g., a list of items followed by phrases such as "at least one of" or "one or more of") indicates an inclusive listing such that, for example, the listing of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Likewise, as used herein, the phrase "based on" should not be construed as referring to a closed set of conditions. For example, an example step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be construed in the same manner as the phrase "at least partially based on".

[0304] In the figures, similar components or features may have the same reference numerals. Additionally, each of the same type of components may be distinguished by following the reference numeral with a dash and a second label that differentiates among the similar components. If only the first reference numeral is used in the specification, the description may apply to any one of the similar components having the same first reference numeral regardless of the second reference numeral, or any other subsequent reference numerals.

[0305] The description provided herein with reference to the accompanying drawings describes example configurations and does not represent all examples that may be implemented or fall within the scope of the claims. The term “example” as used herein means “serving as an example, instance, or illustration” and does not mean “superior to” or “better than” other examples. This detailed description includes specific details to provide an understanding of the described technology. However, the technology may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0306] The description provided herein is to enable a person of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to a person of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for wireless communication, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to: receive at least one control message, the at least one control message indicating a first set of beam configurations associated with a first downlink shared channel from a first transmission reception point and a second set of beam configurations associated with a second downlink shared channel from a second transmission reception point; receive first downlink control information scheduling a first downlink transmission on the first downlink shared channel from the first transmission reception point, the first downlink control information indicating a first beam configuration in the first set of beam configurations; receive second downlink control information scheduling a second downlink transmission on the second downlink shared channel from the second transmission reception point, the second downlink control information indicating a second beam configuration in the second set of beam configurations; decode the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration; and decode the scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration.

2. The device according to claim 1, wherein the instructions for receiving the at least one control message are further executable by the processor to cause the device to: receive a first control message including a first indication of the first set of beam configurations; and receive a second control message including a second indication of the second set of beam configurations.

3. The device according to claim 2, wherein the instructions are further executable by the processor to cause the device to: identify the first beam configuration from the first set of beam configurations at least in part based on a mapping between one or more bits within the first downlink control information and the first set of beam configurations indicated by the first control message; and identify the second beam configuration from the second set of beam configurations at least in part based on a mapping between one or more bits within the second downlink control information and the second set of beam configurations indicated by the second control message.

4. The device according to claim 2, wherein the instructions are further executable by the processor to cause the device to: determine that the first set of beam configurations is associated with the first downlink shared channel from the first transmission reception point at least in part based on a first value of an indicator bit within the first control message indicating the first transmission reception point; and determine that the second set of beam configurations is associated with the second downlink shared channel from the second transmission reception point at least in part based on a second value of the indicator bit within the second control message indicating the second transmission reception point.

5. The device according to claim 1, wherein the instructions are further executable by the processor to cause the device to: Receive a configuration message indicating a plurality of beam configurations associated with the first downlink shared channel and the second downlink shared channel, wherein the at least one control message indicates the first set of beam configurations and the second set of beam configurations from among the plurality of beam configurations.

6. The apparatus according to claim 5, wherein: The at least one control message includes indicator bits corresponding to each of the plurality of beam configurations; and The at least one control message indicates the first set of beam configurations and the second set of beam configurations at least in part based on the value of each of the indicator bits corresponding to each of the plurality of beam configurations.

7. The device according to claim 5, wherein, The configuration message is a radio resource control message.

8. The apparatus according to claim 1, wherein the instructions for receiving the at least one control message can be further executed by the processor to cause the apparatus to: Receive a control message, the one control message including a first indication of the first set of beam configurations and a second indication of the second set of beam configurations.

9. The device according to claim 8, wherein, Each control message in the one control message includes a first set of identifiers identifying each beam configuration within the first set of beam configurations and a second set of identifiers identifying each beam configuration within the second set of beam configurations.

10. The apparatus according to claim 9, wherein the instructions can be further executed by the processor to cause the apparatus to: Identify the first beam configuration from the first set of beam configurations at least in part based on a mapping between one or more bits within the first downlink control information and the first set of beam configurations indicated by the one control message; and Identify the second beam configuration from the second set of beam configurations at least in part based on a mapping between one or more bits within the second downlink control information and the second set of beam configurations indicated by the one control message.

11. The apparatus according to claim 9, wherein the instructions can be further executed by the processor to cause the apparatus to: Determine the first set of identifiers to identify each beam configuration within the first set of beam configurations at least in part based on the position of the first set of identifiers within the one control message and the reception of the one control message from the first transmission reception point; and Determine the second set of identifiers to identify each beam configuration within the second set of beam configurations at least in part based on the position of the second set of identifiers within the one control message and the reception of the one control message from the first transmission reception point.

12. A network entity, comprising: A transceiver; At least one processor; And A memory including instructions executable by the at least one processor to cause the network entity to perform the following operations: Transmit, via the transceiver, at least one control message, the at least one control message indicating a first set of beam configurations associated with a first downlink shared channel and a second set of beam configurations associated with a second downlink shared channel; Transmit, via the transceiver, first downlink control information that schedules a first downlink transmission via the first downlink shared channel, the first downlink control information indicating a first beam configuration in the first set of beam configurations; Transmit, via the transceiver, second downlink control information that schedules a second downlink transmission via the second downlink shared channel, the second downlink control information indicating a second beam configuration in the second set of beam configurations; Transmit, via the transceiver via the first downlink shared channel, the scheduled first downlink transmission according to the first beam configuration; And Transmit, via the transceiver via the second downlink shared channel, the scheduled second downlink transmission according to the second beam configuration.

13. The network entity according to claim 12, wherein, in order to transmit the at least one control message, the instructions can be further executed by the at least one processor to cause the network entity to: Transmit, via the transceiver, a first control message including a first indication of the first set of beam configurations; and Transmit, via the transceiver, a second control message including a second indication of the second set of beam configurations.

14. The network entity according to claim 13, wherein the instructions can be further executed by the at least one processor to cause the network entity to: Indicate the first beam configuration from the first set of beam configurations, at least in part based on a mapping between one or more bits within the first downlink control information and the first set of beam configurations indicated by the first control message; and Indicate the second beam configuration from the second set of beam configurations, at least in part based on a mapping between one or more bits within the second downlink control information and the second set of beam configurations indicated by the second control message.

15. The network entity according to claim 13, wherein the instructions can be further executed by the at least one processor to cause the network entity to: Indicate that the first set of beam configurations is associated with the first downlink shared channel, at least in part based on a first value of the network entity indicated by an indicator bit within the first control message; and Indicate that the second set of beam configurations is associated with the second downlink shared channel, at least in part based on a second value of the network entity indicated by the indicator bit within the second control message.

16. The network entity according to claim 12, wherein the instructions can be further executed by the at least one processor to cause the network entity to: Transmit, via the transceiver, a configuration message indicating a plurality of beam configurations associated with the first downlink shared channel and the second downlink shared channel, wherein the at least one control message indicates the first set of beam configurations and the second set of beam configurations from the plurality of beam configurations.

17. The network entity according to claim 16, wherein: The at least one control message includes indicator bits corresponding to each of the plurality of beam configurations; and The at least one control message indicates the first beam configuration set and the second beam configuration set at least in part based on the value of each indicator bit corresponding to each beam configuration in the plurality of beam configurations.

18. The network entity according to claim 16, wherein, The configuration message is a radio resource control message.

19. The network entity according to claim 12, wherein, Wherein, in order to transmit the at least one control message, the instruction can be further executed by the at least one processor to cause the network entity to: Transmit a control message via the transceiver, the control message including a first indication of the first beam configuration set and a second indication of the second beam configuration set.

20. The network entity according to claim 19, wherein, Each control message in the one control message includes a first identifier set identifying each beam configuration within the first beam configuration set and a second identifier set identifying each beam configuration within the second beam configuration set.

21. The network entity according to claim 20, wherein the instruction can be further executed by the at least one processor to cause the network entity to: Indicate the first beam configuration from the first beam configuration set at least in part based on a mapping between one or more bits within the first downlink control information and the first beam configuration set indicated by the one control message; and Indicate the second beam configuration from the second beam configuration set at least in part based on a mapping between one or more bits within the second downlink control information and the second beam configuration set indicated by the one control message.

22. The network entity according to claim 20, wherein the instruction can be further executed by the at least one processor to cause the network entity to: Indicate the first identifier set at least in part based on the position of the first identifier set within the one control message and the transmission of the one control message to identify each beam configuration within the first beam configuration set; and Indicate the second identifier set at least in part based on the position of the second identifier set within the one control message and the transmission of the one control message to identify each beam configuration within the second beam configuration set.

23. A method for wireless communication, comprising: Receiving at least one control message, the at least one control message indicating a first beam configuration set associated with a first downlink shared channel from a first transmission reception point and a second beam configuration set associated with a second downlink shared channel from a second transmission reception point; Receiving first downlink control information from the first transmission reception point scheduling a first downlink transmission on the first downlink shared channel, the first downlink control information indicating a first beam configuration in the first beam configuration set; Receiving second downlink control information from the second transmission reception point scheduling a second downlink transmission on the second downlink shared channel, the second downlink control information indicating a second beam configuration in the second beam configuration set; Decoding the scheduled first downlink transmission from the first downlink shared channel according to the first beam configuration; And Decode a scheduled second downlink transmission from the second downlink shared channel according to the second beam configuration.

24. The method according to claim 23, wherein, Receiving the at least one control message further comprises: Receiving a first control message comprising a first indication of the first set of beam configurations; and Receiving a second control message comprising a second indication of the second set of beam configurations.

25. The method according to claim 24, further comprising: Identifying the first beam configuration from the first set of beam configurations, at least in part based on a mapping between one or more bits within the first downlink control information and the first set of beam configurations indicated by the first control message; And Identifying the second beam configuration from the second set of beam configurations, at least in part based on a mapping between one or more bits within the second downlink control information and the second set of beam configurations indicated by the second control message.

26. The method according to claim 24, further comprising: Determining that the first set of beam configurations is associated with the first downlink shared channel from the first transmission reception point, at least in part based on a first value of an indicator bit within the first control message indicating the first transmission reception point; And Determining that the second set of beam configurations is associated with the second downlink shared channel from the second transmission reception point, at least in part based on a second value of the indicator bit within the second control message indicating the second transmission reception point.

27. The method according to claim 23, further comprising: Receiving a configuration message indicating a plurality of beam configurations associated with the first downlink shared channel and the second downlink shared channel, wherein the at least one control message indicates the first set of beam configurations and the second set of beam configurations from the plurality of beam configurations.

28. The method according to claim 27, wherein: The at least one control message comprises indicator bits corresponding to each of the plurality of beam configurations; and The at least one control message indicates the first set of beam configurations and the second set of beam configurations, at least in part based on the value of each indicator bit corresponding to each of the plurality of beam configurations.

29. The method according to claim 27, wherein, The configuration message is a radio resource control message.

30. The method according to claim 23, wherein, Receiving the at least one control message further comprises: Receiving one control message, the one control message comprising a first indication of the first set of beam configurations and a second indication of the second set of beam configurations.

31. The method according to claim 30, wherein, Each control message within the one control message comprises a first set of identifiers identifying each beam configuration within the first set of beam configurations and a second set of identifiers identifying each beam configuration within the second set of beam configurations.

32. The method according to claim 31, further comprising: Identifying the first beam configuration from the first set of beam configurations, at least in part based on a mapping between one or more bits within the first downlink control information and the first set of beam configurations indicated by the one control message; And Identify the second beam configuration from the set of second beam configurations, at least in part based on a mapping between one or more bits within the second downlink control information and the set of second beam configurations indicated by the one control message.

33. The method of claim 31, further comprising: Determine the set of first identifiers to identify each beam configuration within the set of first beam configurations, at least in part based on the position of the set of first identifiers within the one control message and receipt of the one control message from the first transmission reception point; And Determine the set of second identifiers to identify each beam configuration within the set of second beam configurations, at least in part based on the position of the set of second identifiers within the one control message and receipt of the one control message from the first transmission reception point.

34. A method for wireless communication, comprising: Transmit at least one control message that indicates a set of first beam configurations associated with a first downlink shared channel from a first transmission reception point and a set of second beam configurations associated with a second downlink shared channel from a second transmission reception point; Transmit, by the first transmission reception point, first downlink control information that schedules a first downlink transmission on the first downlink shared channel, the first downlink control information indicating a first beam configuration within the set of first beam configurations; Transmit, by the second transmission reception point, second downlink control information that schedules a second downlink transmission on the second downlink shared channel, the second downlink control information indicating a second beam configuration within the set of second beam configurations; Transmit the scheduled first downlink transmission via the first downlink shared channel according to the first beam configuration; and Transmit the scheduled second downlink transmission via the second downlink shared channel according to the second beam configuration.

35. The method according to claim 34, wherein, Transmitting the at least one control message further comprises: Transmitting a first control message that includes a first indication of the set of first beam configurations; and Transmitting a second control message that includes a second indication of the set of second beam configurations.

36. The method of claim 35, further comprising: Indicate the first beam configuration from the set of first beam configurations, at least in part based on a mapping between one or more bits within the first downlink control information and the set of first beam configurations indicated by the first control message; And Indicate the second beam configuration from the set of second beam configurations, at least in part based on a mapping between one or more bits within the second downlink control information and the set of second beam configurations indicated by the second control message.

37. The method of claim 35, further comprising: Indicate that the set of first beam configurations is associated with the first downlink shared channel from the first transmission reception point, at least in part based on a first value of an indicator bit within the first control message that indicates the first transmission reception point; And A second value indicating the second transmission reception point, at least partially based on the indicator bit within the second control message, indicates that the second set of beam configurations is associated with the second downlink shared channel from the second transmission reception point.

38. The method according to claim 34, further comprising: Transmitting a configuration message indicating a plurality of beam configurations associated with the first downlink shared channel and the second downlink shared channel, wherein the at least one control message indicates the first set of beam configurations and the second set of beam configurations from among the plurality of beam configurations.

39. The method according to claim 38, wherein: The at least one control message includes an indicator bit corresponding to each beam configuration among the plurality of beam configurations; and The at least one control message indicates the first set of beam configurations and the second set of beam configurations at least partially based on the value of each indicator bit corresponding to each beam configuration among the plurality of beam configurations.

40. The method according to claim 38, wherein, The configuration message is a radio resource control message.

41. The method according to claim 34, wherein, Transmitting the at least one control message further comprises: Transmitting one control message, the one control message including a first indication of the first set of beam configurations and a second indication of the second set of beam configurations.

42. The method according to claim 41, wherein, Each control message within the one control message includes a first set of identifiers identifying each beam configuration within the first set of beam configurations and a second set of identifiers identifying each beam configuration within the second set of beam configurations.

43. The method according to claim 42, further comprising: Indicating the first beam configuration from among the first set of beam configurations at least partially based on a mapping between one or more bits within the first downlink control information and the first set of beam configurations indicated by the one control message; And Indicating the second beam configuration from among the second set of beam configurations at least partially based on a mapping between one or more bits within the second downlink control information and the second set of beam configurations indicated by the one control message.

44. The method according to claim 42, further comprising: Indicating the first set of identifiers at least partially based on the position of the first set of identifiers within the one control message and the transmission of the one control message by the first transmission reception point to identify each beam configuration within the first set of beam configurations; And Indicating the second set of identifiers at least partially based on the position of the second set of identifiers within the one control message and the transmission of the one control message by the first transmission reception point to identify each beam configuration within the second set of beam configurations.

45. A user equipment (UE) comprising: A transceiver; At least one processor; And A memory, the memory including instructions executable by the at least one processor to cause the UE to perform the following operations: Receiving, via the transceiver, at least one control message, the at least one control message indicating a first set of beam configurations associated with a first downlink shared channel from a first transmission reception point and a second set of beam configurations associated with a second downlink shared channel from a second transmission reception point; Receiving, via the transceiver, from the first transmission reception point, first downlink control information scheduling a first downlink transmission via the first downlink shared channel, the first downlink control information indicating a first beam configuration in the first set of beam configurations; Receiving, via the transceiver, from the second transmission reception point, second downlink control information scheduling a second downlink transmission via the second downlink shared channel, the second downlink control information indicating a second beam configuration in the second set of beam configurations; Decoding, according to the first beam configuration, the scheduled first downlink transmission from the first downlink shared channel; And Decoding, according to the second beam configuration, the scheduled second downlink transmission from the second downlink shared channel.

46. The UE according to claim 45, wherein, in order to receive the at least one control message, the instructions can be further executed by the at least one processor to cause the UE to: Receive, via the transceiver, a first control message including a first indication of the first set of beam configurations; and Receive, via the transceiver, a second control message including a second indication of the second set of beam configurations.

47. The UE according to claim 45, wherein the instructions can be further executed by the at least one processor to cause the UE to: Receive, via the transceiver, a configuration message indicating a plurality of beam configurations associated with the first downlink shared channel and the second downlink shared channel, wherein the at least one control message indicates the first set of beam configurations and the second set of beam configurations from the plurality of beam configurations.

48. The UE according to claim 47, wherein the configuration message is a radio resource control message.

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