Transmission Configuration Indicator State Activation Technique for Carrier Aggregation

Abstract

Methods, systems, and apparatus for wireless communications are described in which different component carriers (CCs) or bandwidth parts (BWPs) of a system operating in accordance with carrier aggregation may be configured with different transmission configuration indicator (TCI) states. A base station may transmit control information to a user equipment (UE) to activate two or more CCs, and the control information indicates two or more different TCI state sets activated for the two or more CCs. The control information may be transmitted to the UE in a single MAC‑CE. A single MAC‑CE for activating different TCI state sets at each CC or BWP may allow for a reduced number of MAC‑CEs for communicating active TCI state sets for each CC or BWP.

Description

[0001] This patent application claims the benefit of U.S. Provisional Patent Application No. 62 / 900,587, entitled “TRANSMISSIONCONFIGURATION INDICATOR STATE ACTIVATION TECHNIQUES FOR CARRIER AGGREGATION,” filed by RYU et al. on September 15, 2019, and U.S. Patent Application No. 17 / 019,002, entitled “TRANSMISSION CONFIGURATION INDICATORSTATE ACTIVATION TECHNIQUES FOR CARRIER AGGREGATION,” filed by RYU et al. on September 11, 2020, each of which is assigned to the assignee of this application.

[0002] introduction

[0003] The following relates to wireless communications, and more particularly to communication configuration techniques for carrier aggregation in wireless communication systems.

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasting, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems), and fifth generation (5G) systems that may be referred to as new radio (NR) systems. These systems may use various technologies, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include several base stations or network access nodes, each of which simultaneously supports the communication of multiple communication devices, which may be referred to as user equipment (UE).

[0005] Overview

[0006] A method of wireless communication at a UE is described. The method may include: receiving a media access control-control element indicating a set of active transmission configuration indicator states for a plurality of component carriers configured for the UE; determining, based on the received media access control-control element, that the set of one or more active transmission configuration indicator states is associated with a first component carrier and a second component carrier of the plurality of component carriers; and communicating with a network entity using at least the first component carrier and the second component carrier based at least in part on the determination.

[0007] An apparatus for wireless communication at a UE is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to cause the apparatus to: receive a media access control-control element indicating a set of active transmission configuration indicator states for a plurality of component carriers configured for the UE; determine, based on the received media access control-control element, that the set of one or more active transmission configuration indicator states is associated with a first component carrier and a second component carrier of the plurality of component carriers; and communicate with a network entity using at least the first component carrier and the second component carrier based at least in part on the determination.

[0008] Another apparatus for wireless communication at a UE is described. The apparatus may include means for receiving a media access control-control element indicating a set of active transmission configuration indicator states for a plurality of component carriers configured for the UE; determining, based on the received media access control-control element, that the set of one or more active transmission configuration indicator states is associated with a first component carrier and a second component carrier of the plurality of component carriers; and communicating with a network entity using at least the first component carrier and the second component carrier based at least in part on the determination.

[0009] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor for the following operations: receiving a media access control-control element indicating an active transmission configuration indicator state set for a plurality of component carriers configured for the UE; determining, based on the received media access control-control element, that the set of one or more active transmission configuration indicator states is associated with a first component carrier and a second component carrier of the plurality of component carriers; and communicating with a network entity using at least the first component carrier and the second component carrier based at least in part on the determination.

[0010] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: receiving a first plurality of entries in the media access control-control element, each of the first plurality of entries being associated with a corresponding component carrier among the multiple component carriers, each of the first plurality of entries providing a component carrier identifier and a bandwidth portion identifier; and receiving at least a second entry other than the first plurality of entries in the media access control-control element, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth portions among the multiple component carriers or bandwidth portions.

[0011] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for the following actions: identifying two or more active transmission configuration indicator state mappings for the first component carrier and the second component carrier; receiving an activation command for a first mapping associated with a first active transmission configuration indicator state set in the set of one or more active transmission configuration indicator states in the media access control-control element; and activating the first active transmission configuration indicator state set for the first component carrier based on the mapping. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the activation command for the first active transmission configuration indicator state set indicates one or more bandwidth part identifiers, and an identifier of the first active transmission configuration indicator state set. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the mapping may be received from a base station in radio resource control signaling.

[0012] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, each of the multiple component carriers has an associated set of transmission configuration indicator state identifiers, and the same transmission configuration indicator state identifier for each of the multiple component carriers in the millimeter wave band has the same spatial quasi-co-location parameters. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, each of the activated transmission configuration indicator states of the set of one or more active transmission configuration indicator states in the multiple component carriers and bandwidth portion in the sub-6 GHz band uses the same Doppler or delay-related quasi-co-location reference signal as the bandwidth portion associated with the activated transmission configuration indicator state.

[0013] A method of wireless communication at a base station is described. The method may include: identifying a media access control-control element that indicates a set of one or more active transmission configuration indicator states for a plurality of component carriers configured for a UE; determining, based at least in part on the identified media access control-control element, that a first component carrier and a second component carrier of the plurality of component carriers are associated with the set of one or more active transmission configuration indicator states; transmitting the media access control-control element to the UE; and, based on the determination, communicating with the UE using at least the first component carrier and the second component carrier.

[0014] An apparatus for wireless communication at a base station is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to cause the apparatus to: identify a media access control-control element, the media access control-control element indicating a set of one or more active transmission configuration indicator states for multiple component carriers configured for a UE; determine, based at least in part on the identified media access control-control element, that a first component carrier and a second component carrier of the multiple component carriers are associated with the set of one or more active transmission configuration indicator states; transmit the media access control-control element to the UE; and based on the determination, communicate with the UE using at least the first component carrier and the second component carrier.

[0015] Another apparatus for wireless communication at a base station is described. The apparatus may include means for: identifying a media access control-control element that indicates a set of one or more active transmission configuration indicator states for a plurality of component carriers configured for a UE; determining, based at least in part on the identified media access control-control element, that a first component carrier and a second component carrier of the plurality of component carriers are associated with the set of one or more active transmission configuration indicator states; transmitting the media access control-control element to the UE; and based on the determination, communicating with the UE using at least the first component carrier and the second component carrier.

[0016] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor for the following operations: identifying a media access control-control element, the media access control-control element indicating a set of one or more active transmission configuration indicator states for multiple component carriers configured for a UE; determining, based at least in part on the identified media access control-control element, that a first component carrier and a second component carrier of the multiple component carriers are associated with the set of one or more active transmission configuration indicator states; transmitting the media access control-control element to the UE; and based on the determination, communicating with the UE using at least the first component carrier and the second component carrier.

[0017] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: transmitting a first plurality of entries in the media access control-control element, each of the first plurality of entries being associated with a corresponding component carrier among the multiple component carriers, each of the first plurality of entries providing a component carrier identifier and a bandwidth portion identifier; and transmitting at least a second entry other than the first plurality of entries in the media access control-control element, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth portions among the multiple component carriers or bandwidth portions.

[0018] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for the following actions: identifying two or more active transmission configuration indicator state mappings for the first component carrier and the second component carrier; transmitting an activation command for a first mapping associated with a first active transmission configuration indicator state set in the set of one or more active transmission configuration indicator states in the media access control-control element; and wherein the second active transmission configuration indicator state set is activated for the second component carrier based on a second mapping provided in the media access control-control element. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the activation command for the first active transmission configuration indicator state set indicates one or more bandwidth part identifiers, and an identifier of the first mapping. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, each mapping may be transmitted in radio resource control signaling.

[0019] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, each of the multiple component carriers has an associated set of transmission configuration indicator state identifiers, and the same transmission configuration indicator state identifier for each of the multiple component carriers in the millimeter wave band has the same spatial quasi-co-location parameters. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, each of the multiple activated transmission configuration indicator states of the set of one or more active transmission configuration indicator states in the multiple component carriers and bandwidth portion in the sub-6 GHz band uses the same Doppler or delay-related quasi-co-location reference signal as the bandwidth portion associated with the activated transmission configuration indicator state.

[0020] A method of wireless communication at a UE is described. The method may include: receiving a media access control-control element from a network entity, the media access control-control element indicating two or more active transmission configuration indicator state sets for a set of component carriers configured for the UE; determining a first active transmission configuration indicator state set for a first component carrier and a second active transmission configuration indicator state set for a second component carrier based on the received media access control-control element, wherein the first active transmission configuration indicator state set is different from the second active transmission configuration indicator state set; and based on the determination, communicating with the network entity using at least the first component carrier and the second component carrier.

[0021] An apparatus for wireless communication at a UE is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to cause the apparatus to: receive a media access control-control element from a network entity, the media access control-control element indicating two or more active transmission configuration indicator state sets for a set of component carriers configured for the UE; determine a first active transmission configuration indicator state set for a first component carrier and a second active transmission configuration indicator state set for a second component carrier based on the received media access control-control element, wherein the first active transmission configuration indicator state set is different from the second active transmission configuration indicator state set; and based on the determination, communicate with the network entity using at least the first component carrier and the second component carrier.

[0022] Another apparatus for wireless communication at a UE is described. The apparatus may include means for: receiving a media access control-control element from a network entity, the media access control-control element indicating two or more active transmission configuration indicator state sets for a set of component carriers configured for the UE; determining a first active transmission configuration indicator state set for a first component carrier and a second active transmission configuration indicator state set for a second component carrier based on the received media access control-control element, wherein the first active transmission configuration indicator state set is different from the second active transmission configuration indicator state set; and based on the determination, communicating with the network entity using at least the first component carrier and the second component carrier.

[0023] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor for the following operations: receiving a media access control-control element from a network entity, the media access control-control element indicating two or more active transmission configuration indicator state sets for a set of component carriers configured for the UE; determining a first active transmission configuration indicator state set for a first component carrier and a second active transmission configuration indicator state set for a second component carrier based on the received media access control-control element, wherein the first active transmission configuration indicator state set is different from the second active transmission configuration indicator state set; and based on the determination, communicating with the network entity using at least the first component carrier and the second component carrier.

[0024] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: receiving a first plurality of entries in the media access control-control element, each of the first plurality of entries being associated with a corresponding component carrier among the multiple component carriers, each of the first plurality of entries providing a component carrier identifier and a bandwidth portion identifier; and receiving at least a second entry other than the first plurality of entries in the media access control-control element, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth portions among the multiple component carriers or bandwidth portions.

[0025] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for the following actions: receiving an activation command for the first component carrier in the media access control-control element, wherein the activation command includes a first bit, and the first bit can be set to indicate that different sets of active transmission configuration indicator states can be activated for different component carriers in the component carrier set. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for the following actions: identifying a first active transmission configuration indicator state based on the activation command for the first component carrier; identifying a first reference signal ID associated with the first active transmission configuration indicator state; and activating one or more transmission configuration indicator states of at least the second component carrier that can be associated with the first reference signal ID. Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for: activating a transmission configuration indicator state associated with a first reference signal ID for each remaining component carrier in the component carrier set; and repeating the identification and activation for one or more other active transmission configuration indicator states provided in the media access control-control element including the first bit, wherein the first bit may be set to indicate that different sets of active transmission configuration indicator states may be activated.

[0026] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for the following actions: identifying two or more active transmission configuration indicator state mappings for the first component carrier and the second component carrier; receiving an activation command for a first mapping associated with a first active transmission configuration indicator state set in the set of one or more active transmission configuration indicator states in the media access control-control element; and activating the first active transmission configuration indicator state set for the first component carrier based on the mapping. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the activation command for the first active transmission configuration indicator state set indicates one or more bandwidth part identifiers, and an identifier of the first active transmission configuration indicator state set. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the mapping may be received from a base station in radio resource control signaling.

[0027] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: receiving configuration information indicating a subset of available transmission configuration indicator states, wherein the subset may be less than the total number of configurable transmission configuration indicator states; and wherein the media access control-control element explicitly indicates which transmission configuration indicator states may be active for each component carrier. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the media access control-control element includes a first set of bits associated with the first component carrier, the first set of bits indicating which transmission configuration indicator states in the subset of available transmission configuration indicator states may be in the first active transmission configuration indicator state set; and the media access control-control element includes a second set of bits associated with the second component carrier, the second set of bits indicating which transmission configuration indicator states in the subset of available transmission configuration indicator states may be in the second active transmission configuration indicator state set.

[0028] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the media access control-control element includes a first plurality of entries, each of which can be associated with a corresponding component carrier in the component carrier set, and wherein each entry in the first plurality of entries provides a component carrier identifier and a bandwidth part identifier; and the media access control-control element includes at least a second entry outside the first plurality of entries, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth parts in the component carrier or bandwidth part set.

[0029] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, each of the multiple component carriers has an associated set of transmission configuration indicator state identifiers, and the same transmission configuration indicator state identifier for each of the multiple component carriers in the millimeter wave band has the same spatial quasi-co-location parameters. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, each of the activated transmission configuration indicator states of the set of one or more active transmission configuration indicator states in the multiple component carriers and bandwidth portion in the sub-6 GHz band uses the same Doppler or delay-related quasi-co-location reference signal as the bandwidth portion associated with the activated transmission configuration indicator state.

[0030] A method of wireless communication at a base station is described. The method may include: determining, for communication with a UE, a first set of active transmission configuration indicator states for a first component carrier in a set of component carriers and a second set of active transmission configuration indicator states for a second component carrier in the set of component carriers, wherein the first set of active transmission configuration indicator states is different from the second set of active transmission configuration indicator states; transmitting a media access control-control element to the UE, the media access control-control element indicating the first set of active transmission configuration indicator states and the second set of active transmission configuration indicator states for the set of component carriers; and based on the determination, communicating with the base station using at least the first component carrier and the second component carrier.

[0031] An apparatus for wireless communication at a base station is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to cause the apparatus to: determine, for communication with a UE, a first set of active transmission configuration indicator states for a first component carrier in a set of component carriers and a second set of active transmission configuration indicator states for a second component carrier in the set of component carriers, wherein the first set of active transmission configuration indicator states is different from the second set of active transmission configuration indicator states; transmit a media access control-control element to the UE, the media access control-control element indicating the first set of active transmission configuration indicator states and the second set of active transmission configuration indicator states for the set of component carriers; and based on the determination, communicate with the base station using at least the first component carrier and the second component carrier.

[0032] Another apparatus for wireless communication at a base station is described. The apparatus may include means for: determining, for communication with a UE, a first set of active transmission configuration indicator states for a first component carrier in a set of component carriers and a second set of active transmission configuration indicator states for a second component carrier in the set of component carriers, wherein the first set of active transmission configuration indicator states is different from the second set of active transmission configuration indicator states; transmitting a media access control-control element to the UE, the media access control-control element indicating the first set of active transmission configuration indicator states and the second set of active transmission configuration indicator states for the set of component carriers; and based on the determination, communicating with the base station using at least the first component carrier and the second component carrier.

[0033] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor for the following operations: determining, for communication with a UE, a first set of active transmission configuration indicator states for a first component carrier in a set of component carriers and a second set of active transmission configuration indicator states for a second component carrier in the set of component carriers, wherein the first set of active transmission configuration indicator states is different from the second set of active transmission configuration indicator states; transmitting a media access control-control element to the UE, the media access control-control element indicating the first set of active transmission configuration indicator states and the second set of active transmission configuration indicator states for the set of component carriers; and based on the determination, communicating with the base station using at least the first component carrier and the second component carrier.

[0034] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: transmitting a first plurality of entries in the media access control-control element, each of the first plurality of entries being associated with a corresponding component carrier among the multiple component carriers, each of the first plurality of entries providing a component carrier identifier and a bandwidth portion identifier; and transmitting at least a second entry other than the first plurality of entries in the media access control-control element, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth portions among the multiple component carriers or bandwidth portions.

[0035] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: transmitting an activation command for the first component carrier in the media access control-control element, wherein the activation command includes a first bit that can be set to indicate that different sets of active transmission configuration indicator states can be activated for different component carriers in the set of component carriers. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the activation command indicates a first active transmission configuration indicator state with an associated first reference signal for the first component carrier, and wherein at least one or more transmission configuration indicator states of the second component carrier that can be associated with the first reference signal can be activated.

[0036] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for the following actions: identifying two or more active transmission configuration indicator state mappings for the first component carrier and the second component carrier; transmitting an activation command for a first mapping associated with a first active transmission configuration indicator state set in the set of one or more active transmission configuration indicator states in the media access control-control element; and wherein the second active transmission configuration indicator state set is activated for the second component carrier based on a second mapping provided in the media access control-control element. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the activation command for the first active transmission configuration indicator state set indicates one or more bandwidth part identifiers, and an identifier of the first mapping. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, each mapping may be transmitted in radio resource control signaling.

[0037] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for: transmitting configuration information indicating a subset of available transmission configuration indicator states to a UE, wherein the subset may be less than the total number of configurable transmission configuration indicator states; and wherein the media access control-control element explicitly indicates which transmission configuration indicator states may be active for each component carrier.

[0038] In some examples of the methods, devices (apparatus) and non-transitory computer-readable media described herein, the media access control-control element includes a first bit set associated with the first component carrier, the first bit set indicating which transmission configuration indicator states in the available transmission configuration indicator state subset can be in the first active transmission configuration indicator state set; and the media access control-control element includes a second bit set associated with the second component carrier, the second bit set indicating which transmission configuration indicator states in the available transmission configuration indicator state subset can be in the second active transmission configuration indicator state set.

[0039] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the media access control-control element includes a first plurality of entries, each of which can be associated with a corresponding component carrier in the component carrier set, and wherein each entry in the first plurality of entries provides a component carrier identifier and a bandwidth part identifier; and the media access control-control element includes at least a second entry outside the first plurality of entries, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth parts in the component carrier or bandwidth part set.

[0040] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, each of the multiple component carriers has an associated set of transmission configuration indicator state identifiers, and the same transmission configuration indicator state identifier for each of the multiple component carriers in the millimeter wave band has the same spatial quasi-co-location parameters. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, each of the multiple activated transmission configuration indicator states of the set of one or more active transmission configuration indicator states in the multiple component carriers and bandwidth portion in the sub-6 GHz band uses the same Doppler or delay-related quasi-co-location reference signal as the bandwidth portion associated with the activated transmission configuration indicator state. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 An example of a wireless communication system supporting transmission configuration indicator state activation techniques for carrier aggregation in accordance with aspects of the present disclosure is illustrated.

[0043] Figure 2 An example of a wireless communication system supporting transmission configuration indicator state activation techniques for carrier aggregation in accordance with aspects of the present disclosure is illustrated.

[0044] Figure 3 An example of component carrier configuration supporting a transmission configuration indicator state activation technique for carrier aggregation in accordance with aspects of the present disclosure is illustrated.

[0045] Figure 4 Another example of a wireless communication system supporting transmission configuration indicator state activation techniques for carrier aggregation in accordance with aspects of the present disclosure is illustrated.

[0046] Figure 5 Another example of a wireless communication system supporting transmission configuration indicator state activation techniques for carrier aggregation in accordance with aspects of the present disclosure is illustrated.

[0047] Figure 6An example of a process flow supporting a transmission configuration indicator state activation technique for carrier aggregation in accordance with aspects of the present disclosure is illustrated.

[0048] Figure 7 and Figure 8 A block diagram of a device supporting transmission configuration indicator state activation techniques for carrier aggregation in accordance with aspects of the present disclosure is shown.

[0049] Fig. 9 A block diagram of a communications manager supporting transmission configuration indicator state activation techniques for carrier aggregation is shown in accordance with aspects of the present disclosure.

[0050] Fig.10 A diagram of a system including devices supporting transmission configuration indicator state activation techniques for carrier aggregation is shown in accordance with aspects of the present disclosure.

[0051] Fig.11 and Fig.12 A block diagram of a device supporting transmission configuration indicator state activation techniques for carrier aggregation in accordance with aspects of the present disclosure is shown.

[0052] Fig.13 A block diagram of a communications manager supporting transmission configuration indicator state activation techniques for carrier aggregation is shown in accordance with aspects of the present disclosure.

[0053] Fig.14 A diagram of a system including devices supporting transmission configuration indicator state activation techniques for carrier aggregation is shown in accordance with aspects of the present disclosure.

[0054] Figure 15 to Figure 22 A flow chart illustrating a method of supporting transmission configuration indicator state activation techniques for carrier aggregation in accordance with aspects of the present disclosure is shown.

[0055] Detailed Description

[0056] A wireless communication system, such as a new radio (NR) system, may support carrier aggregation using multiple component carriers (CCs). In some cases, one or more CCs may be divided into bandwidth parts (BWPs), and one BWP may be active for communication using the CCs. In one example, a communication link in the system may support transmission using multiple CCs (e.g., up to 16 uplink CCs and up to 16 downlink CCs). In some systems, one media access control (MAC) control element (MAC-CE) may be used to configure two or more CCs with two or more different sets of active transmission configuration indicator (TCI) states.

[0057] Each CC may be uniquely identified and configured for physical channel and reference signal transmission. For example, for each downlink and uplink CC, beam selection may be indicated to the UE via MAC-CE. The configuration of each CC may result in increased signaling overhead in the wireless system.

[0058] When a UE is configured with multiple CCs, a relatively large number of MAC-CEs (e.g., up to 16 MAC-CEs, each for each of up to 16 CCs) may be used to select different TCI state identifiers (IDs) in each CC (e.g., in downlink NR-NR carrier aggregation). The use of this number of MAC-CEs may result in increased signaling overhead between the UE and the base station. In order to reduce the number of MAC-CEs used to communicate the active TCI state set in each CC configured for communication between the base station and the UE, various aspects discussed herein provide a single MAC-CE command that may be used to activate two or more different active TCI state sets for a number of CCs / BWPs for which the TCI state is active (e.g., for multiple CCs / BWPs). For example, a first activated TCI state set may be selected to be associated with a first group of one or more CCs, and a second activated TCI state set may be selected to be associated with a second group of one or more CCs.

[0059] In some cases, a single MAC-CE may be used to activate different sets of active TCI states for data communications in different groups of BWPs or CCs (e.g., physical downlink shared channel (PDSCH) or physical uplink shared channel (PUSCH)). This is in contrast to the use of multiple MAC-CEs, in which each MAC-CE is used to select an active TCI state set in an active BWP corresponding to a single CC (e.g., in downlink NR-NR carrier aggregation), which may result in increased signaling overhead between the UE and the base station. The techniques discussed herein allow for a reduced number of MAC-CEs for communicating active TCI state sets for multiple active BWPs in corresponding multiple CCs that are quasi-co-located (QCL) in space. In some cases, a single MAC-CE command may be used to select multiple active TCI state sets for PDSCH that may be applied to a group of BWPs / CCs. For example, a MAC-CE may include a number of octets that may be used to activate different CCs. The reserved bits in each octet may indicate whether the TCI state associated with the activated CC / BWP is to be applied to other CC / BWPs. For example, if the reserved bits in the octet are set to zero, the TCI state associated with the indicated CC / BWP may not be applied to other CC / BWPs. However, if the reserved bits are set to one, one or more TCI states of the CC / BWP indicated in the octet may be applied to one or more other CC / BWPs. This reduced signaling may provide enhanced system efficiency through a reduction in signaling, reduced power consumption, and accelerated signaling.

[0060] Various aspects of the present disclosure are initially described in the context of a wireless communication system. Various aspects regarding process flows are subsequently described. Various aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow diagrams related to communication configurations for multiple CCs.

[0061] Figure 1 An example of a wireless communication system 100 supporting a transmission configuration indicator state activation technique for carrier aggregation according to various aspects of the present disclosure is illustrated. The wireless communication system 100 includes a network device 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 may be an LTE network, an LTE-A network, an LTE-A Pro network, or an NR network. In some cases, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low latency communications, or communications with low-cost and low-complexity devices. The wireless communication system 100 may support signaling between a network device 105 (such as a base station) and a UE 115 for configuration and management of control channel monitoring by a relay 140.

[0062] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC), which may include at least one mobility management entity (MME), at least one serving gateway (S-GW), and at least one packet data network (PDN) gateway (P-GW). The MME may manage non-access layer (e.g., control plane) functions such as mobility, authentication, and bearer management of UE 115 served by network devices 105 associated with the EPC. User IP packets may be delivered through the S-GW, which itself may be connected to the P-GW. The P-GW may provide IP address allocation and other functions. The P-GW may be connected to network operator IP services. Operator IP services may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or packet switched (PS) streaming services.

[0063] At least some of the network devices 105 (e.g., network device 105-a (which may be an example of a base station (e.g., eNB, network access device, gNB)) or network device 105-b (which may be an example of an access node controller (ANC)) may interface with the core network 130 via a backhaul link 132 (e.g., S1, S2) and may perform radio configuration and scheduling to communicate with the UE 115. In various examples, the network devices 105-b may communicate with each other directly or indirectly (e.g., through the core network 130) over a backhaul link 134 (e.g., X1, X2), which may be a wired or wireless communication link.

[0064] Each network device 105-b may also additionally or alternatively communicate with a plurality of UEs 115 through a plurality of other network devices 105-c, where the network device 105-c may be an example of a smart radio head (or through a plurality of smart radio heads). In alternative configurations, the various functions of each network device 105 may be distributed across various network devices 105 (e.g., radio heads and access network controllers) or merged into a single network device 105 (e.g., a base station).

[0065] The network device 105 may communicate wirelessly with the UE 115 via one or more base station antennas. The network device 105 described herein may include or may be referred to by those skilled in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a Node B, an eNB, a Next Generation Node B, or a Gigabit Node B (any of which may be referred to as a gNB), a Home Node B, a Home Evolved Node B, or some other suitable terminology. The wireless communication system 100 may include different types of network devices 105 (e.g., a macro cell base station or a small cell base station). The UE 115 described herein may be able to communicate with various types of network devices 105 and network equipment (including macro eNBs, small cell eNBs, gNBs, relay base stations, etc.).

[0066] Each network device 105 may be associated with a particular geographic coverage area 110 in which it supports communications with various UEs 115. Each network device 105 may provide communications coverage for a respective geographic coverage area 110 via a communication link 125, and the communication link 125 between the network device 105 and the UE 115 may utilize one or more carriers. The communication link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the network device 105, or a downlink transmission from the network device 105 to the UE 115. Downlink transmissions may also be referred to as forward link transmissions, and uplink transmissions may also be referred to as reverse link transmissions.

[0067] The geographic coverage area 110 of the network device 105 may be divided into sectors that constitute only a portion of the geographic coverage area 110, and each sector may be associated with a cellular cell. For example, each network device 105 may provide communication coverage for a macrocellular cell, a small cellular cell, a hotspot, or other types of cellular cells, or various combinations thereof. In some examples, the network device 105 may be mobile and therefore provide communication coverage for a mobile geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, and overlapping geographic coverage areas 110 associated with different technologies may be supported by the same network device 105 or different network devices 105. The wireless communication system 100 may include, for example, a heterogeneous LTE / LTE-A / LTE-A Pro or NR network, in which different types of network devices 105 provide coverage for various geographic coverage areas 110.

[0068] The term "cell" refers to a logical communication entity used to communicate with network device 105 (e.g., on a carrier), and may be associated with an identifier to distinguish adjacent cells operating via the same or different carriers (e.g., physical cell identifier (PCID), virtual cell identifier (VCID)). In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types that may provide access to different types of devices (e.g., machine type communication (MTC), narrowband Internet of Things (NB-IoT), enhanced mobile broadband (eMBB), or others). In some cases, the term "cell" may refer to a portion of a geographic coverage area 110 (e.g., a sector) on which the logical entity operates.

[0069] Each UE 115 can be dispersed throughout the wireless communication system 100, and each UE 115 can be stationary or mobile. UE 115 can also be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device or some other suitable term, wherein "device" can also be referred to as a unit, a station, a terminal or a client. UE 115 can also be a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer or a personal computer. In some examples, UE 115 can also refer to a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or an MTC device, etc., which can be implemented in various items (such as electrical appliances, vehicles, meters, etc.). UE 115 can communicate with the core network 130 via a communication link 135.

[0070] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or with network devices 105 without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay the information to a central server or application, which may utilize the information or present the information to a person interacting with the program or application. Some UEs 115 may be designed to collect information or implement automated behavior of machines. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, health care monitoring, field survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging. In some cases, the repeater 140 may be an MTC or IoT device that is controlled by the network device 105 or UE 115 via a low bandwidth (low frequency band) or NB-IoT connection, and performs relaying of received signals without demodulating or decoding the signals based on control information provided by the low frequency band or NB-IoT connection.

[0071] Some UEs 115 may be configured to employ a reduced power consumption mode of operation, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but not simultaneous transmission and reception). In some examples, half-duplex communication may be performed with a reduced peak rate. Other power saving techniques for UE 115 include entering a power saving "deep sleep" mode when not engaged in active communications, or operating over a limited bandwidth (e.g., in accordance with narrowband communications). In some cases, UE 115 may be designed to support critical functions (e.g., mission critical functions), and the wireless communication system 100 may be configured to provide ultra-reliable communications for these functions.

[0072] In some cases, UE 115 may also be able to communicate directly with other UE 115 (e.g., using a peer-to-peer (P2P) or device-to-device (D2D) protocol). One or more of a group of UE 115 utilizing D2D communication may be within a geographic coverage area 110 of a network device 105. Other UE 115 in this group may be outside the geographic coverage area 110 of the network device 105, or otherwise unable to receive transmissions from the network device 105. In some cases, each group of UE 115 communicating via D2D communication may utilize a one-to-many (1:M) system, where each UE 115 transmits to each other UE 115 in the group. In some cases, the network device 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UE 115 without involving the network device 105.

[0073] Each network device 105 can communicate with the core network 130 and with each other. For example, the network device 105 can interface with the core network 130 via a backhaul link 132 (e.g., via S1, N2, N3, or other interfaces). Each network device 105 can communicate with each other directly (e.g., directly between each network device 105) or indirectly (e.g., via the core network 130) on a backhaul link 134 (e.g., via X2, Xn, or other interfaces).

[0074] At least some of these network devices (such as network device 105) may include subcomponents, such as access network entities, which may be examples of ANCs. Each access network entity may communicate with each UE 115 through a number of other access network transport entities, which may be referred to as radio heads, smart radio heads, or transmission / reception points (TRPs). In some configurations, the various functions of each access network entity or network device 105 may be distributed across various network devices (e.g., radio heads and access network controllers) or merged into a single network device (e.g., network device 105).

[0075] The electromagnetic spectrum is typically subdivided into various classes, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). Frequencies between FR1 and FR2 are typically referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is typically (interchangeably) referred to as the “sub-6 GHz band” in various documents and articles. Similar naming issues sometimes arise regarding FR2, which is typically (interchangeably) referred to as the “millimeter wave” band in various documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0076] In view of the above aspects, unless otherwise specifically stated, it should be understood that if used in this article, the term "sub-6GHz" and the like can broadly represent frequencies that can be less than 6GHz, can be within FR1, or can include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if used in this article, the term "millimeter wave" and the like can broadly represent frequencies that can include mid-band frequencies, can be within FR2, or can be within the EHF band.

[0077] The wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 MHz to 300 GHz. In general, the 300 MHz to 3 GHz region is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from about 1 decimeter to 1 meter long. UHF waves may be blocked or redirected by buildings and environmental features. However, these waves may penetrate various structures sufficiently for macro cells to provide services to UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 km) compared to transmission using lower frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

[0078] The wireless communication system 100 may also operate in the Super High Frequency (SHF) region using a frequency band from 3 GHz to 30 GHz, also known as the centimeter band. The SHF region includes frequency bands that may be opportunistically used by devices that can tolerate interference from other users, such as the 5 GHz Industrial, Scientific, and Medical (ISM) band.

[0079] The wireless communication system 100 may also operate in the extremely high frequency (EHF) division of the spectrum (e.g., from 30 GHz to 300 GHz), which is also referred to as the millimeter band. In some examples, the wireless communication system 100 may support mmW communications between the UE 115 and the network device 105, and the EHF antenna of the corresponding device may be even smaller and more closely spaced than the UHF antenna. In some cases, this may facilitate the use of antenna arrays within the UE 115. However, the propagation of EHF transmissions may be subject to even greater atmospheric attenuation and shorter range than SHF or UHF transmissions. The technology disclosed herein may be adopted across transmissions using one or more different frequency divisions, and the use of frequency bands specified across these frequency divisions may differ by country or regulatory agency.

[0080] In some cases, the wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may adopt license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band (such as a 5 GHz ISM band). When operating in an unlicensed radio frequency spectrum band, wireless devices (such as network devices 105 and UE 115) may adopt a listen-before-talk (LBT) procedure to ensure that the frequency channel is clear before transmitting data. In some cases, operations in unlicensed bands may be based on CA configurations (e.g., LAA) in coordination with CCs operating in licensed bands. Operations in unlicensed spectrum may include downlink transmissions, uplink transmissions, peer-to-peer transmissions, or a combination of these. Duplexing in unlicensed spectrum may be based on frequency division duplexing (FDD), time division duplexing (TDD), or a combination of the two.

[0081] In some examples, the network device 105 or UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. For example, the wireless communication system 100 may use a transmission scheme between a transmitting device (e.g., network device 105) and a receiving device (e.g., UE 115), wherein the transmitting device is equipped with multiple antennas and the receiving device is equipped with one or more antennas. MIMO communication may employ multipath signal propagation to increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers, which may be referred to as spatial multiplexing. For example, the transmitting device may transmit multiple signals via different antennas or different antenna combinations. Similarly, the receiving device may receive multiple signals via different antennas or different antenna combinations. Each of these multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams. Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0082] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a network device 105 or a UE 115) to shape or steer an antenna beam (e.g., a transmit beam or a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals communicated via antenna elements of an antenna array so that signals propagating at a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals communicated via antenna elements may include the transmitting device or the receiving device applying a particular amplitude and phase shift to the signal carried via each antenna element associated with the device. Adjustments associated with each antenna element may 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).

[0083] In one example, the network device 105 may use multiple antennas or antenna arrays to perform beamforming operations for directional communication with the UE 115. For example, some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the network device 105 in different directions, which may include a signal being transmitted according to different beamforming weight sets associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by the network device 105 or a receiving device, such as the UE 115) to identify a beam direction used by the network device 105 for subsequent transmission and / or reception. Some signals (such as data signals associated with a particular receiving device) may be transmitted by the network device 105 in a single beam direction (e.g., a direction associated with a receiving device (such as the UE 115)). In some examples, the beam direction associated with transmissions along a single beam direction may be determined based at least in part on signals transmitted in different beam directions. For example, UE 115 may receive one or more signals transmitted by network device 105 in different directions, and UE 115 may report indications of the signals it received with the highest signal quality or other acceptable signal quality to network device 105. Although these techniques are described with reference to signals transmitted by network device 105 in one or more directions, UE 115 may use similar techniques for transmitting signals multiple times in different directions (e.g., for identifying a beam direction for subsequent transmission or reception by UE 115) or for transmitting signals in a single direction (e.g., for transmitting data to a recipient device).

[0084] A receiving device (e.g., UE 115, which may be an example of a mmW receiving device) may try multiple receive beams when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from network device 105. For example, the receiving device may try multiple receive directions by receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, or processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different receive beams or receive directions. In some examples, the receiving device may use a single receive beam to receive along a single beam direction (e.g., when receiving a data signal). A single receive beam may be aligned in a beam direction determined based at least in part on listening according to different receive beam directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio, or other acceptable signal quality based at least in part on listening according to multiple beam directions).

[0085] In some cases, the antennas of network device 105 or UE 115 may be located within one or more antenna arrays that may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some cases, antennas or antenna arrays associated with network device 105 may be located at different geographic locations. Network device 105 may have an antenna array with several rows and columns of antenna ports that network device 105 may use to support beamforming for communications with UE 115. Likewise, UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations.

[0086] In some cases, the wireless communication system 100 can be a packet-based network operated according to a layered protocol stack. In the user plane, the communication of the bearer or packet data convergence protocol (PDCP) layer can be based on IP. In some cases, the radio link control (RLC) layer can perform packet segmentation and reorganization to communicate on the logical channel. The media access control (MAC) layer can perform priority handling and multiplex the logical channel into the transport channel. The MAC layer can also use hybrid automatic repeat request (HARQ) to provide retransmission of the MAC layer, thereby improving link efficiency. In the control plane, the radio resource control (RRC) protocol layer can provide the establishment, configuration and maintenance of the RRC connection of the radio bearer supporting user plane data between the UE 115 and the network device 105 or the core network 130. In the physical (PHY) layer, the transport channel can be mapped to the physical channel.

[0087] In some cases, UE 115 and network device 105 may support retransmission of data to increase the likelihood that the data is successfully received. HARQ feedback is a technique that increases the likelihood of correctly receiving data on communication link 125. HARQ may include a combination of error detection (e.g., using cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve the throughput of the MAC layer in poor radio conditions (e.g., signal-to-noise ratio conditions). In some cases, a wireless device may support simultaneous slot HARQ feedback, where the device may provide HARQ feedback in a specific time slot for data received in a previous symbol in the time slot. In other cases, the device may provide HARQ feedback in a subsequent time slot or according to some other time interval.

[0088] The time interval in LTE or NR can be represented by a basic time unit (which may refer to a sampling period T, for example). s =1 / 30,720,000 seconds). The time intervals of the communication resources may be organized according to radio frames each having a duration of 10 milliseconds (ms), where the frame period may be expressed as T f=307,200T s . A radio frame may be identified by a system frame number (SFN) ranging from 0 to 1023. Each frame may include 10 subframes numbered from 0 to 9, and each subframe may have a duration of 1 ms. A subframe may be further divided into 2 slots, each slot having a duration of 0.5 ms, and each slot may contain 6 or 7 modulation symbol periods (e.g., depending on the length of a cyclic prefix prepended to each symbol period). Excluding the cyclic prefix, each symbol period may contain 2048 sampling periods. In some cases, a subframe may be the minimum scheduling unit of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In other cases, the minimum scheduling unit of the wireless communication system 100 may be shorter than a subframe or may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI) or in a selected component carrier using sTTI).

[0089] In some wireless communication systems, a time slot may be further divided into a plurality of mini-slots containing one or more symbols. In some instances, a symbol of a mini-slot or a mini-slot may be a minimum scheduling unit. For example, each symbol may vary in duration depending on the subcarrier spacing or the operating frequency band. In addition, some wireless communication systems may implement time slot aggregation, wherein a plurality of time slots or mini-slots are aggregated together and used for communication between UE 115 and network device 105.

[0090] The term "carrier" refers to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communications on the communication link 125. For example, a carrier of the communication link 125 may include a portion of a radio frequency spectrum band that operates according to a physical layer channel for a given radio access technology. Each physical layer channel may carry user data, control information, or other signaling. A carrier may be associated with a predefined frequency channel (e.g., an E-UTRA Absolute Radio Frequency Channel Number (EARFCN)) and may be located according to a channel grid for discovery by a UE 115. A carrier may be downlink or uplink (e.g., in FDD mode), or configured to carry downlink communications and uplink communications (e.g., in TDD mode). In some examples, a signal waveform transmitted on a carrier may include multiple subcarriers (e.g., using a multi-carrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or DFT-s-OFDM).

[0091] The organization structure of the carrier may be different for different radio access technologies (e.g., LTE, LTE-A, LTE-A Pro, NR, etc.). For example, communications on a carrier may be organized according to TTIs or time slots, each of which may include user data and control information or signaling to support decoding of the user data. A carrier may also include dedicated acquisition signaling (e.g., synchronization signals or system information, etc.) and control signaling to coordinate carrier operations. In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling to coordinate the operations of other carriers.

[0092] 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 a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. In some examples, control information transmitted in a physical control channel may be distributed in a cascaded manner between different control regions (e.g., between a common control region or a common search space and one or more UE-specific control regions or UE-specific search spaces).

[0093] A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of several predetermined bandwidths of a carrier for a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). In some examples, each served UE 115 may be configured to operate on part or all of the carrier bandwidth. In other examples, some UEs 115 may be configured to operate using a narrowband protocol type associated with a predefined portion or range (e.g., a set of subcarriers or RBs) within a carrier (e.g., an "in-band" deployment of a narrowband protocol type).

[0094] In a system using MCM technology, a resource element may include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme). Thus, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate of UE 115 can be. In a MIMO system, wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and space resources (e.g., space layers), and the use of multiple space layers may further increase the data rate of communication with UE 115.

[0095] A device of the wireless communication system 100 (e.g., a network device 105 or a UE 115) may have a hardware configuration that supports communication on a particular carrier bandwidth, or may be configurable to support communication on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a network device 105 and / or a UE 115 that may support simultaneous communication via carriers associated with more than one different carrier bandwidths.

[0096] The wireless communication system 100 may support communication with a UE 115 on multiple cells or carriers, a feature that may be referred to as carrier aggregation (CA) or multi-carrier operation. The UE 115 may be configured with multiple downlink CCs and one or more uplink CCs according to a carrier aggregation configuration. Carrier aggregation may be used with both FDD and TDD component carriers.

[0097] In some cases, the wireless communication system 100 may utilize an enhanced component carrier (eCC). An eCC may be characterized by one or more features including a wider carrier or frequency channel bandwidth, a shorter symbol duration, a shorter TTI duration, or a modified control channel configuration. In some cases, an eCC may be associated with a carrier aggregation configuration or a dual connectivity configuration (e.g., when multiple serving cells have suboptimal or non-ideal backhaul links). An eCC may also be configured for use in an unlicensed spectrum or a shared spectrum (e.g., where more than one operator is allowed to use the spectrum). An eCC characterized by a wide carrier bandwidth may include one or more segments that may be utilized by a UE 115 that is not capable of monitoring the entire carrier bandwidth or is otherwise configured to use a limited carrier bandwidth (e.g., to save power).

[0098] In some cases, an eCC may utilize a different symbol duration than other CCs, which may include using a reduced symbol duration compared to the symbol duration of other CCs. A shorter symbol duration may be associated with an increased spacing between adjacent subcarriers. A device utilizing an eCC (such as a UE 115 or a network device 105) may transmit a wideband signal (e.g., based on a frequency channel or carrier bandwidth of 20, 40, 60, 80 MHz, etc.) with a reduced symbol duration (e.g., 16.67 microseconds). A TTI in an eCC may include one or more symbol periods. In some cases, the TTI duration (i.e., the number of symbol periods in a TTI) may be variable.

[0099] Wireless communication systems (such as NR systems) can utilize any combination of licensed, shared, and unlicensed spectrum bands, etc. The flexibility of eCC symbol duration and subcarrier spacing can allow eCC to be used across multiple spectrums. In some examples, NR shared spectrum can improve spectrum utilization and spectrum efficiency, especially through dynamic vertical (e.g., across frequency domain) and horizontal (e.g., across time domain) sharing of resources.

[0100] A UE 115 attempting to access a wireless network may perform an initial cell search by detecting a primary synchronization signal (PSS) from the network device 105. The PSS may enable synchronization of time slot timing and may indicate a physical layer identity value. The UE 115 may then receive a secondary synchronization signal (SSS). The SSS may enable radio frame synchronization and may provide a cell identity value that may be combined with a physical layer identity value to identify the cell. The SSS may also enable detection of duplex mode and cyclic prefix length. Some systems (such as TDD systems) may transmit SSS but not PSS. Both PSS and SSS may be located in the center 62 and 72 subcarriers of a carrier, respectively. In some cases, the network device 105 may use multiple beams to transmit synchronization signals (e.g., PSS, SSS, etc.) through a cellular coverage area in a beam sweeping manner. In some cases, PSS, SSS, and / or broadcast information (e.g., physical broadcast channel (PBCH)) may be transmitted within a synchronization signal block (SSB) on a corresponding directional beam, wherein one or more SSBs may be included within a synchronization signal burst.

[0101] One or more of the network devices 105 may include a communication manager 101 that may configure one or more UEs 115 for communication using carrier aggregation via two or more CCs. In some cases, two or more different active TCI state sets may be configured for two or more CCs, or two or more different active TCI state sets may be associated with two or more CCs, and indications of the different TCI state sets may be provided in a single MAC-CE. In some examples, the communication manager 101 may determine a CC to be activated for communication and an associated TCI state set, and transmit control information (e.g., a single MAC-CE) indicating the activated CC and the associated TCI state set to the UE 115.

[0102] In other examples, the communication manager 102 may receive configuration information for multiple CCs. In some cases, the network device 105 may transmit indications of different TCI state sets for configured CCs in a single MAC-CE. In some examples, the communication manager 102 may determine the CCs and associated TCI state sets to be activated for communication based on the control information (e.g., the single MAC-CE), and communicate with the network device 105 using the activated CCs and associated TCI state sets.

[0103] Figure 2An example of a wireless communication system 200 that supports transmission configuration indicator state activation techniques for carrier aggregation according to aspects of the present disclosure is illustrated. In some examples, the wireless communication system 200 can implement aspects of the wireless communication system 100. For example, the wireless communication system 200 includes a base station 105-a and a UE 115-a, which can be reference Figure 1 Examples of corresponding devices described.

[0104] The wireless communication system 200 may support carrier aggregation using multiple CCs 225. The UE 115-a and the base station 105-a may communicate on the links 205, 210, and optionally on the link 215. For example, the link 205 may support communications using CCs 225-a, 225-b, and 225-c, and additional CCs 225 may be used on the link 205. For example, up to 16 uplink CCs 225 and up to 16 downlink CCs 225 may be used for carrier aggregation on the link 205. In some systems, one MAC-CE 220 may be used to activate different TCI state sets in different CCs 225 or serving cells.

[0105] In some cases, multiple BWPs may be defined for one or more of CCs 225, and the multiple BWPs may be used to transmit / receive control / data for UE 115-a. In some cases, one BWP may be active per CC 225, and up to 4 BWPs may be defined per CC 225. Each active BWP may have multiple TCI states to be managed (e.g., activated / deactivated). The TCI state may be used to inform UE 115-a how a downlink signal is transmitted, and information may be provided based on association, such as in a physical downlink shared channel (PDSCH), using the same beam parameters (e.g., QCL type D) as some other downlink reference signal to transmit the downlink signal. This association information may allow UE 115-a to receive PDSCH / PDCCH using the correct receive beam. In some cases, up to 128 TCI states may be configured for a UE 115-a, but only a subset of them are active (e.g., activated by a MAC-CE), while the rest are inactive. TCI state activation / deactivation may be configured per BWP. In some cases, for PDSCH reception, the associated downlink control information (DCI) may indicate to the UE 115-a which TCI state in the set of activated TCI states to apply.

[0106] Various prior art techniques may provide that when CCs 225 share the same analog beam in the same frequency band (e.g., spatially QCL), up to 16 MAC CEs 220 may be used to select the same TCI state ID in each CC 225 (e.g., in downlink NR-NR carrier aggregation). Due to spatial QCL, the same TCI state ID may be used in such CCs 225. However, in some cases, even in such a case where CCs are in the same frequency band, it may be desirable for different CCs 225 to have different TCI states. For example, if the first CC 225-a has a relatively light traffic load, relatively few TCI states may be sufficient to provide sufficient beams for communications on the first CC 225-a. Continuing with this example, if the second CC 225-b has a relatively heavy traffic load, the relatively few TCI states of the first CC 225-a may be insufficient, and it may be desirable to have additional available TCI states to provide additional beams from which communication beams can be selected to avoid interfering with beams of other devices. Conventionally, in order to configure such different active TCI state sets, multiple MAC-CEs may need to be transmitted to communicate the different active TCI state sets for the two CCs 225. In order to reduce the number of MAC-CEs 220 used to communicate different active TCI state sets for different CCs 225, aspects of the present disclosure provide techniques for communicating different active TCI state sets within the same MAC-CE 220. In some cases, a single MAC-CE 220 may be used to activate two or more CCs 225 with different active TCI state sets at each CC 225.

[0107] For example, a first activated TCI state set may be selected or associated with a first CC 225-a (e.g., by a base station 105-a), and a second activated TCI state set may be selected or associated with a second CC 225-b for a second CC 225-b. Although the first and second CCs 225 and TCI states are discussed herein in various examples, the techniques provided herein may be used for any number of CCs or BWPs. In some cases, the MAC-CE 220 may include several octets 230 that may be used to activate different CCs. For example, each octet 230 may indicate an activated serving cell ID and a BWP ID. In some cases, a reserved bit (R) in each octet 230 may indicate whether the TCI state associated with the activated CC / BWP is to be applied to other CCs / BWPs. For example, if the reserved bit in the first octet 230-a is set to zero, the TCI state associated with the indicated CC / BWP may not be applied to other CC / BWPs. However, if the reserved bit is set to one, one or more TCI states of the CC / BWP indicated in the first octet 230-a may be applied to one or more other CC / BWPs. In some cases, the TCI state of the CC / BWP indicated in the first octet 230-a may be associated with a first reference signal (e.g., beamforming parameters (such as QCL type D parameters) for receiving the first reference signal may be used for data communication via the indicated CC / BWP), and for each remaining CC 225 in a group of CCs (e.g., CCs in the same frequency band), an activated TCI state with the same first reference signal may be provided (i.e., TCI states with the same QCL type D reference signal are activated in other CCs). Therefore, the corresponding activated TCI states of the other CCs 225 may have different TCI state IDs, but may be activated based on the QCL type D parameters. In some examples, the corresponding activated TCI states of other CCs 225 may have different TCI state IDs and have different QCL type D parameters.

[0108] In some cases, the indication of the TCI state ID may be implicit and may be based on the MAC-CE 220. The implicit MAC-CE 220 indication may be transmitted by the base station 105-a, which may include a MAC-CE 220 that identifies the TCI state ID for the CORESET ID of the specified CC 225 or CCs 225. The UE 115-a may apply the indicated TCI state ID to the identified CC 225. The UE 115-a may also be configured with other CCs 225 with the same TCI state as the CC 225 indicated in the MAC-CE 220, and the UE 115-a may also apply the indicated TCI state ID to additional CCs 225 with the same TCI state, even if the additional CCs are not explicitly specified in the MAC-CE 220. The TCI state ID may be applied to the additional CCs 225 for at least PDCCH communications.

[0109] In accordance with some aspects, an indication of a TCI state ID may be explicitly transmitted from the base station 105-a to the UE 115-a. For example, the MAC-CE 220 may be formatted to include a CORESET TCI selection using a list of CC sets to which the indicated TCI state ID is to be applied. The UE 115-a may receive the list of CC IDs in the MAC-CE 220 and apply the indicated TCI state ID to the CC 225 indicated by the list. In another example, the set of CCs 225 that share the same MAC-CE 220 command is indicated outside of or separately from the MAC-CE 220. For example, the link 215 may be used by the base station 105-a to transmit RRC signaling or a separate control message (e.g., a separate MAC-CE) indicating the set of CCs to share the MAC-CE 220.

[0110] The UE 115-a may then receive downlink control information from the base station 105-a (e.g., via the PDCCH) according to the indicated TCI state ID for one or more CCs 225 (e.g., using the same configured beam or other transmission parameters) after applying the TCI state ID indicated in the MAC-CE 220 or via the link 215. In some cases, different formats of MAC-CE 220 may be used to indicate activated TCI state sets and activated BWP / CCs. In some cases, the MAC-CE 220 may indicate the number of activated BWP / CCs and may also indicate activated TCI states for multiple BWP / CCs. Various examples of different MAC-CE 220 formats are discussed herein, but the examples provided herein are not considered limiting, and other MAC-CE formats that activate different TCI state sets for different BWP / CCs are within the scope of the present disclosure.

[0111] In some cases, a MAC-CE may activate the same set of TCI state IDs for all active BWPs on the same cell group and CCs in the same frequency band on frequency range 2 (FR2) (i.e., mmWave bands). In this case, when operating in this mode, the UE 115-a may expect to configure the same QCL Type D reference signal for the same TCI state ID for all BWPs on the same cell group and CCs in the same frequency band. In this case, for activation, a MAC-CE with an indicated activated TCI state ID received on any active BWP in the frequency band(s) or cell group may be applied to each active BWP on the cell group and CCs in the frequency band.

[0112] In other cases, communications may use frequency range 1 (FR1) (i.e., sub-6 GHz bands), and the MAC-CE 220 may activate one TCI state ID set (including both QCL Type A and Type D reference signals). In this case, QCL Type D may provide spatial reception parameters, and QCL Type A may provide Doppler and delay reception parameters. In this case, the TCI state ID set for the active BWP of the CC indicated by the MAC-CE may be applied to all active BWPs on CCs in the same cell group and the same frequency band (e.g., the QCL Type A reference signal applied to each CC / BWP is the signal corresponding to the same resource ID(s) indicated by the TCI state ID).

[0113] Figure 3An example of a component carrier configuration 300 supporting a transmission configuration indicator state activation technique for carrier aggregation according to aspects of the present disclosure is illustrated. In some examples, the component carrier configuration 300 can implement aspects of the wireless communication system 100. In this example, two or more CCs 305 (including a first CC 310 and a second CC 315) can be configured in the same frequency band. Figure 2 As indicated, each CC 305 may be configured with up to four BWPs.

[0114] In this example, each CC 305 may be in the same 28 GHz frequency band (i.e., FR2), and their channel properties are very similar. That is, the UE may receive one signal in the first CC 310 using the same beam as another signal in the second CC 315. Therefore, changing the TCI state for both CCs 305 at the same time may be relatively efficient (i.e., less overhead). Figure 2 As discussed, in some cases, it may be desirable for the first CC 310 and the second CC 315 to have different sets of active TCI states. For example, to avoid interference in a relatively congested channel (where multiple different devices may use the same frequency band), additional available beams for communications using the second CC 315 may be desired, and different beams may provide directional communications to avoid mutual interference. Therefore, in this example, the first CC 310 and at least one activated BWP of the first CC 310 may have a first set of activated TCI states. In addition, the second CC 315 and at least one activated BWP of the second CC 315 may have a second set of activated TCI states that is different from the first set of activated TCI states. Various techniques discussed herein provide for activating such different sets of TCI states using a single MAC-CE.

[0115] Figure 4 Another example of a wireless communication system 400 supporting transmission configuration indicator state activation techniques for carrier aggregation according to aspects of the present disclosure is illustrated. In some examples, the wireless communication system 400 can implement aspects of the wireless communication system 100. For example, the wireless communication system 400 includes a base station 105-b and a UE 115-b, which can be reference Figure 1 and Figure 2 Examples of corresponding devices described.

[0116] The wireless communication system 400 may support carrier aggregation using multiple CCs 425. The UE 115-b and the base station 105-b may communicate on links 405, 410, and optionally on link 415. For example, link 405 may support communications using CCs 425-a, 425-b, and 425-c, and additional CCs 425 may also be supported on link 405 (e.g., 16 uplink CCs 425 or 16 downlink CCs 425 may be used for carrier aggregation on link 405). In some systems, the MAC-CE 420 may be used to change the set of active TCI states for data communications (e.g., PDSCH, PUSCH) in the BWP 430 for the CC 425 or the serving cell. In order to reduce the number of MAC-CEs 420 used to communicate the active TCI state set for the same active BWP 430 in each CC 425 that is spatially QCL, a single MAC-CE 420 may be used to select an active TCI state set for the PDSCH that is applicable to multiple BWP 330CC 425 pairs (e.g., uplink and downlink pairs of CC 425).

[0117] In this example, the number of different TCI state sets can be preconfigured according to the number of TCI state mappings. For example, the base station 105-b can preconfigure several TCI state mappings and transmit these mappings to the UE 115-b in RRC signaling on the link 415. In a specific example, the first BWP 430-a may have two preconfigured activation / deactivation mappings, which include a first mapping with active TCI state = {1, 2, 3, 4}; and inactive TCI state = {5, 6, 7, 8}. The second mapping may have active TCI state = {5, 6, 7, 8}; and inactive TCI state = {1, 2, 3, 4}. In such an example, the MAC-CE 420 may indicate which mapping is to be used for TCI state activation / deactivation and include the CC or serving cell ID, the associated BWP ID, and the ID of the TCI state activation / deactivation mapping for each BWP ID. The MAC-CE 420 of this example also includes a reserved bit (R) that can be reserved for future use.

[0118] Figure 5 Another example of a wireless communication system 500 that supports transmission configuration indicator state activation techniques for carrier aggregation according to aspects of the present disclosure is illustrated. In some examples, the wireless communication system 500 can implement aspects of the wireless communication system 100. For example, the wireless communication system 500 includes a base station 105-c and a UE 115-c, which can be referenced Figure 1 , Figure 2 and Figure 4 Examples of corresponding devices described.

[0119] The wireless communication system 500 may support carrier aggregation using multiple CCs 525. The UE 115-c and the base station 105-c may communicate on links 505, 510, and optionally on link 515 (e.g., for RRC signaling). For example, link 505 may support communications using CCs 525-a, 525-c, and 525-c, and additional CCs 525 may also be supported on link 505 (e.g., 16 uplink CCs 525 or 16 downlink CCs 525 may be used for carrier aggregation on link 505). In some systems, the MAC-CE 520 may be used to change the active TCI state set for data communications (e.g., PDSCH, PUSCH) in the BWP 530 for the CC 525 or the serving cell. To reduce the number of MAC-CEs 520 used to communicate the active TCI state set for the same active BWP 530 in each CC 525 that is spatially QCL, a single MAC-CE 520 may be used to select an active TCI state set for PDSCH that is applicable to multiple BWP 530CC 525 pairs.

[0120] In this example, a relatively limited number of available TCI states may be activated at any one time. The remaining configured TCI states will be inactive. In some cases, an indication of the available TCI states may be provided via RRC signaling on link 515. In some cases, the number of available TCI states may be limited by the number of bits that can be used to signal which TCI states are activated. For example, MAC-CE 520 may include an identification of each TCI state to be activated for a serving cell or CCID of a bandwidth portion, as well as the bandwidth portion ID. If n bits are used to indicate the TCI state ID to be activated, up to 2 TCI states may be configured. n TCI states. As indicated, in some cases, the configured TCI states can be indicated to the UE 115-c via RRC signaling. A single MAC-CE 520 message can then explicitly indicate which TCI states are active and the remaining TCI states are inactive. In some cases, several octets can be provided in the MAC-CE 520, and if n bits are small enough, two or more TCI states can be indicated by a single octet. For example, if 16 TCI states can be activated, four bits can be used to identify the TCI state ID, and two TCI state IDs can be provided in the octet of the MAC-CE 520. The MAC-CE 520 of this example also includes a reserved bit (R) that can be reserved for future use.

[0121] Figure 6An example of a process flow 600 for supporting a transmission configuration indicator state activation technique for carrier aggregation according to aspects of the present disclosure is illustrated. In some examples, the process flow 600 can implement aspects of the wireless communication system 100, 200, 400, or 500. The process flow 600 may include a base station 105-d and a UE 115-d, which may be as described with reference to Figures 1 to 5 Examples of corresponding devices described.

[0122] The base station 105-d and the UE 115-d may establish a connection at 605. For example, a random access procedure and an associated RRC connection establishment procedure may be performed to establish the connection. In some cases, the connection may use carrier aggregation for communication on two or more CCs.

[0123] At 610, the base station 105-d may identify two or more active TCI state sets for each of the two or more CCs. In some cases, a first active TCI state set may be identified for the first CC and a second active TCI state set may be identified for the second CC.

[0124] At 615, the base station 105-d may transmit a control message (e.g., a single MAC-CE) to the UE 115-d. The control message may indicate the identified active CCs (and / or BWPs) and the associated activated TCI state set associated with each CC. In some cases, the MAC-CE may have a state such as in Figure 2 , Figure 4 or Figure 5 The format discussed in the example of and can provide an indication of an activated TCI state set with relatively little overhead while providing the system with the flexibility to select an appropriate TCI state for a particular CC.

[0125] At 620, UE 115-d may receive the control message and determine the active TCI state for each CC / BWP. The determination of the active TCI state may be made based on information provided by the MAC-CE, such as in Figure 2 , Figure 4 or Figure 5 discussed in the example of .

[0126] At 625 , UE 115 - d may apply the first active TCI state set to the first CC based on the determination at 620 .

[0127] In addition, at 630, UE 115-d may apply a second active TCI state set to the second CC based on the determination at 620.

[0128] At 635, UE 115-d may transmit or receive communications to or from base station 105-d based on the determination at 620 and the applied active TCI set.

[0129] Figure 7 A block diagram 700 of a device 705 supporting transmission configuration indicator state activation techniques for carrier aggregation according to aspects of the present disclosure is shown. The device 705 may be an example of aspects of a UE 115 as described herein. The device 705 may include a receiver 710, a communication manager 715, and a transmitter 720. The device 705 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0130] 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 transmission configuration indicator state activation techniques for carrier aggregation, etc.). The information may be passed to other components of the device 705. The receiver 710 may be a reference Fig.10 Examples of various aspects of the transceiver 1020 are described. The receiver 710 may utilize a single antenna or a collection of antennas.

[0131] The communication manager 715 may receive a media access control-control element from a network entity, the media access control-control element indicating two or more active transmission configuration indicator state sets for a set of component carriers configured for the UE; determine a first active transmission configuration indicator state set for a first component carrier and a second active transmission configuration indicator state set for a second component carrier based on the received media access control-control element, wherein the first active transmission configuration indicator state set is different from the second active transmission configuration indicator state set; and based on the determination, communicate with the network entity using at least the first component carrier and the second component carrier. The communication manager 715 may be an example of aspects of the communication manager 1010 described herein.

[0132] The communication manager 715 can receive a media access control-control element that indicates a set of one or more active transmission configuration indicator states for multiple component carriers configured for the UE; determine, at least in part based on the received media access control-control element, that the set of one or more active transmission configuration indicator states is associated with a first component carrier and a second component carrier among the multiple component carriers; and, based at least in part on the determination, use at least the first component carrier and the second component carrier to communicate with a network entity.

[0133] The communication manager 715 may be an example of an apparatus for performing various aspects of the transmission configuration indicator state activation techniques for carrier aggregation as described herein. The communication manager 715 or its subcomponents may be implemented in hardware, code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 715 or its subcomponents may be performed by a general purpose processor, DSP, application specific integrated circuit (ASIC), FPGA or other programmable logic device designed to perform the functions described in the present disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0134] In another implementation, the communication manager 715 or its subcomponents may be implemented in code executed by a processor (e.g., as communication management software or firmware), or any combination thereof. If implemented in code executed by a processor, the functionality of the communication manager 715 or its subcomponents may be performed by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device.

[0135] In some examples, communications manager 715 may be configured to perform various operations (eg, receive, determine, communicate) using or otherwise in cooperation with receiver 710, transmitter 720, or both.

[0136] The communication manager 715 or its subcomponents may be physically located at various locations, including being distributed such that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 715 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 715 or its subcomponents may be combined with one or more other hardware components (including, but not limited to, input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof).

[0137] The actions performed by the communication manager 715 as described herein may be implemented to achieve one or more potential benefits. One implementation may allow the UE 115 to save power and increase battery life by reducing signaling by using a single MAC-CE command to select multiple active TCI state sets for PDSCH that may be applied to multiple BWP / CCs. Another implementation may provide improved quality of service and reliability at the UE 115 because latency and the number of separate resources allocated to the UE 115 may be reduced.

[0138] The transmitter 720 may transmit signals generated by other components of the device 705. In some examples, the transmitter 720 may be co-located with the receiver 710 in a transceiver module. For example, the transmitter 720 may be a reference Fig.10 Examples of aspects of the described transceiver 1020. The transmitter 720 may utilize a single antenna or a collection of antennas.

[0139] Figure 8 A block diagram 800 of a device 805 supporting transmission configuration indicator state activation techniques for carrier aggregation according to aspects of the present disclosure is shown. The device 805 may be an example of aspects of the device 705 or UE 115 as described herein. The device 805 may include a receiver 810, a communication manager 815, and a transmitter 835. The device 805 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0140] 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 transmission configuration indicator state activation techniques for carrier aggregation, etc.). The information may be passed to other components of the device 805. The receiver 810 may be a reference Fig.10 Examples of various aspects of the transceiver 1020 are described. The receiver 810 may utilize a single antenna or a collection of antennas.

[0141] The communication manager 815 may be an example of aspects of the communication manager 715 as described herein. The communication manager 815 may include a control receiver 820, a CC configuration manager 825, and a CC transceiver 830. The communication manager 815 may be an example of aspects of the communication manager 1010 as described herein.

[0142] The control receiver 820 may receive a media access control-control element from a network entity, the media access control-control element indicating two or more sets of active transmission configuration indicator states for a set of component carriers configured for the UE. In some examples, the control receiver 820 may receive a first plurality of entries in the media access control-control element, each of the first plurality of entries being associated with a corresponding component carrier in the plurality of component carriers, each entry in the first plurality of entries providing a component carrier identifier and a bandwidth portion identifier; and receive at least a second entry other than the first plurality of entries in the media access control-control element, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth portions in the plurality of component carriers or bandwidth portions.

[0143] The CC configuration manager 825 may determine a first active transmission configuration indicator state set for a first component carrier and a second active transmission configuration indicator state set for a second component carrier based on the received media access control-control element, wherein the first active transmission configuration indicator state set is different from the second active transmission configuration indicator state set.

[0144] The CC transceiver 830 may communicate with the network entity using at least the first component carrier and the second component carrier based on the determination.

[0145] The transmitter 835 can transmit signals generated by other components of the device 805. In some examples, the transmitter 835 can be co-located with the receiver 810 in a transceiver module. For example, the transmitter 835 can be a reference Fig.10 Examples of aspects of the described transceiver 1020. The transmitter 835 may utilize a single antenna or a collection of antennas.

[0146] Fig. 9 A block diagram 900 of a communication manager 905 supporting transmission configuration indicator state activation techniques for carrier aggregation according to aspects of the present disclosure is shown. The communication manager 905 may be an example of aspects of the communication manager 715, the communication manager 815, or the communication manager 1010 described herein. The communication manager 905 may include a control receiver 910, a CC configuration manager 915, a CC transceiver 920, a TCI state manager 925, a reference signal manager 930, a TCI state mapping component 935, and a QCL manager 940. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0147] The control receiver 910 may receive a medium access control-control element from a network entity, the medium access control-control element indicating two or more active transmission configuration indicator state sets for a set of component carriers configured for the UE.

[0148] The CC configuration manager 915 may determine a first active transmission configuration indicator state set for a first component carrier and a second active transmission configuration indicator state set for a second component carrier based on the received media access control-control element, wherein the first active transmission configuration indicator state set is different from the second active transmission configuration indicator state set.

[0149] The CC transceiver 920 may communicate with the network entity using at least the first component carrier and the second component carrier based on the determination.

[0150] The TCI state manager 925 may receive an activation command for the first component carrier in the media access control-control element, wherein the activation command includes a first bit that is set to indicate that different active transmission configuration indicator state sets are activated for different component carriers in the component carrier set.

[0151] In some examples, the TCI state manager 925 may identify a first active transmission configuration indicator state based on the activation command for the first component carrier. In some examples, the TCI state manager 925 may activate one or more transmission configuration indicator states associated with the first reference signal of at least the second component carrier. In some examples, the TCI state manager 925 may activate a transmission configuration indicator state associated with the first reference signal of each remaining component carrier in the set of component carriers. In some examples, the TCI state manager 925 may repeat the identification and activation for one or more other active transmission configuration indicator states provided in the media access control-control element including the first bit, the first bit being set to indicate that a different set of active transmission configuration indicator states is activated.

[0152] In some examples, the TCI state manager 925 may receive configuration information indicating a subset of available transmission configuration indicator states, wherein the subset is less than the total number of configurable transmission configuration indicator states. In some examples, the media access control-control element explicitly indicates which transmission configuration indicator states are active for each component carrier. In some cases, the media access control-control element includes a first set of bits associated with the first component carrier, indicating which transmission configuration indicator states in the subset of available transmission configuration indicator states are in the first set of active transmission configuration indicator states. In some cases, the media access control-control element includes a second set of bits associated with the second component carrier, indicating which transmission configuration indicator states in the subset of available transmission configuration indicator states are in the second set of active transmission configuration indicator states.

[0153] In some cases, the media access control-control element includes a first set of entries, each entry in the first set of entries is associated with a corresponding component carrier in the set of component carriers, and each entry in the first set of entries provides a component carrier identifier and a bandwidth portion identifier. In some cases, the media access control-control element includes at least a second entry outside the first set of entries, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth portions in the set of component carriers or bandwidth portions.

[0154] Reference signal manager 930 may identify a first reference signal associated with the first active transmission configuration indicator state.

[0155] The TCI state mapping component 935 can identify two or more active transmission configuration indicator state mappings for the first component carrier and the second component carrier. In some examples, the TCI state mapping component 935 can receive an activation command in the media access control-control element for a first mapping associated with the first active transmission configuration indicator state set in the set of one or more active transmission configuration indicator states. In some examples, the TCI state mapping component 935 can activate the first active transmission configuration indicator state set for the first component carrier based on the mapping.

[0156] In some cases, the activation command for the first active transmission configuration indicator state set indicates one or more bandwidth part identifiers and an identifier of the first active transmission configuration indicator state set. In some cases, the mapping may be received from a base station in radio resource control signaling.

[0157] The QCL manager 940 may identify QCL parameters associated with the TCI state. In some cases, the transmission configuration indicator states associated with the set of component carriers are located in the same cell group in the millimeter wave frequency band with the same identification and have the same spatial quasi-co-location parameters associated with them (i.e., the same TCI state in two CCs corresponds to the same beam). For example, a first TCI state in a first CC may have a first QCL type D reference signal, and the first TCI state in a second CC also has a first QCL type D reference signal, and so on for the second, third, and fourth TCI states of the first and second CCs. In some cases, the activated transmission configuration indicator states in the component carriers and bandwidth portions in the sub-6 GHz band use Doppler or delay related quasi-co-located reference signals associated with the bandwidth portion associated with the activated transmission configuration indicator state (e.g., if the same TCI state is activated in different BWPs and QCL type A is defined, the QCL type A reference signal from the first BWP can be used to activate the same TCI state in the second BWP).

[0158] Fig.10A diagram of a system 1000 including a device 1005 supporting a transmission configuration indicator state activation technique for carrier aggregation according to various aspects of the present disclosure is shown. The device 1005 may be an example of a device 705, a device 805, or a UE 115 as described herein or include a component of the device 705, the device 805, or the UE 115. The device 1005 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a communication 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., a bus 1045).

[0159] The communication manager 1010 can receive a media access control-control element from a network entity, which indicates two or more active transmission configuration indicator state sets for a set of component carriers configured for a UE; determine a first active transmission configuration indicator state set for a first component carrier and a second active transmission configuration indicator state set for a second component carrier based on the received media access control-control element, wherein the first active transmission configuration indicator state set is different from the second active transmission configuration indicator state set; and based on the determination, use at least the first component carrier and the second component carrier to communicate with the network entity.

[0160] I / O controller 1015 can manage input and output signals of device 1005. I / O controller 1015 can also manage peripheral devices that are not integrated into device 1005. In some cases, I / O controller 1015 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1015 can utilize an operating system, such as MS- MS- OS / Or another known operating system. In other cases, I / O controller 1015 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 1015 may be implemented as part of a processor. In some cases, a user may interact with device 1005 via I / O controller 1015 or via hardware components controlled by I / O controller 1015.

[0161] The transceiver 1020 may 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 may communicate bidirectionally with another wireless transceiver. The transceiver 1020 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0162] In some cases, a wireless device may include a single antenna 1025. However, in some cases, the device may have more than one antenna 1025, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0163] Memory 1030 may include RAM and ROM. Memory 1030 may store computer-readable, computer-executable code 1035 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, memory 1030 may include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0164] Processor 1040 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1040 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into processor 1040. Processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1030) to cause device 1005 to perform various functions (e.g., functions or tasks supporting a transmission configuration indicator state activation technique for carrier aggregation).

[0165] Based on using a single MAC-CE command to select multiple active TCI state sets for PDSCH that can be applied to multiple BWP / CCs, the processor of UE 115 can efficiently activate different active TCI state sets for data communication. This reduced signaling can provide reduced overhead and enhanced system efficiency, reduced power consumption and reduced latency.

[0166] The code 1035 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1035 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 1035 may not be directly executed by the processor 1040, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0167] Fig.11 A block diagram 1100 of a device 1105 supporting a transmission configuration indicator state activation technique for carrier aggregation according to aspects of the present disclosure is shown. The device 1105 may be an example of aspects of a base station 105 as described herein. The device 1105 may include a receiver 1110, a communication manager 1115, and a transmitter 1120. The device 1105 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0168] 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 transmission configuration indicator state activation techniques for carrier aggregation, etc.). The information may be passed to other components of the device 1105. The receiver 1110 may be a reference Fig.14 Examples of various aspects of the transceiver 1420 are described. The receiver 1110 may utilize a single antenna or a collection of antennas.

[0169] The communication manager 1115 may determine, for communication with the UE, a first set of active transmission configuration indicator states for a first component carrier in a set of component carriers and a second set of active transmission configuration indicator states for a second component carrier in the set of component carriers, wherein the first set of active transmission configuration indicator states is different from the second set of active transmission configuration indicator states; transmit a media access control-control element to the UE, the media access control-control element indicating the first set of active transmission configuration indicator states and the second set of active transmission configuration indicator states for the set of component carriers; and based on the determination, communicate with the network entity using at least the first component carrier and the second component carrier. The communication manager 1115 may be an example of aspects of the communication manager 1410 described herein.

[0170] The communication manager 1115 can identify a media access control-control element that indicates a set of one or more active transmission configuration indicator states for multiple component carriers configured for the UE; determine, at least in part based on the identified media access control-control element, that a first component carrier and a second component carrier among the multiple component carriers are associated with the set of one or more active transmission configuration indicator states; transmit the media access control-control element to the UE; and, based at least in part on the determination, use at least the first component carrier and the second component carrier to communicate with the UE.

[0171] The communication manager 1115 may be an example of an apparatus for performing various aspects of the transmission configuration indicator state activation techniques for carrier aggregation as described herein. The communication manager 1115 or its subcomponents may be implemented in hardware, code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 1115 or its subcomponents may be performed by a general purpose processor, a DSP, an application specific integrated circuit (ASIC), an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0172] In another implementation, the communication manager 1115 or its subcomponents may be implemented in code executed by a processor (e.g., as communication management software or firmware), or any combination thereof. If implemented in code executed by a processor, the functionality of the communication manager 1115 or its subcomponents may be performed by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device.

[0173] In some examples, communications manager 1115 may be configured to perform various operations (eg, identifying, determining, transmitting) using or otherwise in cooperation with receiver 1110, transmitter 1120, or both.

[0174] The communication manager 1115 or its subcomponents may be physically located at various locations, including being distributed such that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 1115 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 1115 or its subcomponents may be combined with one or more other hardware components (including, but not limited to, input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof).

[0175] The actions performed by the communication manager 1115 as described herein may be implemented to achieve one or more potential advantages. One implementation may allow the base station 105 to save power and increase battery life by reducing signaling by using a single MAC-CE command to select multiple active TCI state sets for PDSCH that may be applied to multiple BWP / CCs. Another implementation may provide improved quality of service and reliability at the base station 105 because latency and the number of separate resources may be reduced.

[0176] 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 a reference Fig.14 Examples of various aspects of the transceiver 1420 are described. The transmitter 1120 may utilize a single antenna or a collection of antennas.

[0177] Fig.12 A block diagram 1200 of a device 1205 supporting transmission configuration indicator state activation techniques for carrier aggregation according to aspects of the present disclosure is shown. The device 1205 may be an example of aspects of the device 1105 or base station 105 as described herein. The device 1205 may include a receiver 1210, a communication manager 1215, and a transmitter 1235. The device 1205 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0178] 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 transmission configuration indicator state activation techniques for carrier aggregation, etc.). The information may be passed to other components of the device 1205. The receiver 1210 may be a reference Fig.14 Examples of various aspects of the transceiver 1420 are described. The receiver 1210 may utilize a single antenna or a collection of antennas.

[0179] 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 CC configuration manager 1220, a control transmitter 1225, and a CC transceiver 1230. The communication manager 1215 may be an example of aspects of the communication manager 1410 described herein.

[0180] The CC configuration manager 1220 may determine, for communication with a UE, a first active transmission configuration indicator state set for a first component carrier in a component carrier set and a second active transmission configuration indicator state set for a second component carrier in the component carrier set, wherein the first active transmission configuration indicator state set is different from the second active transmission configuration indicator state set.

[0181] The control transmitter 1225 may transmit a media access control-control element to the UE, the media access control-control element indicating the first active transmission configuration indicator state set and the second active transmission configuration indicator state set for the component carrier set. In some examples, the control transmitter 1225 may transmit a first plurality of entries in the media access control-control element, each of the first plurality of entries being associated with a corresponding component carrier in the plurality of component carriers, each entry in the first plurality of entries providing a component carrier identifier and a bandwidth portion identifier; and transmit at least a second entry other than the first plurality of entries in the media access control-control element, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth portions in the plurality of component carriers or bandwidth portions.

[0182] The CC transceiver 1230 may communicate with the network entity using at least the first component carrier and the second component carrier based on the determination.

[0183] Transmitter 1235 may transmit signals generated by other components of device 1205. In some examples, transmitter 1235 may be co-located with receiver 1210 in a transceiver module. Fig.14 Examples of various aspects of the transceiver 1420 are described. The transmitter 1235 may utilize a single antenna or a collection of antennas.

[0184] Fig.13 A block diagram 1300 of a communication manager 1305 supporting transmission configuration indicator state activation techniques for carrier aggregation according to aspects of the present disclosure is shown. 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 CC configuration manager 1310, a control transmitter 1315, a CC transceiver 1320, a TCI state manager 1325, a TCI state mapping component 1335, and a QCL manager 1335. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0185] The CC configuration manager 1310 may determine, for communication with a UE, a first active transmission configuration indicator state set for a first component carrier in a component carrier set and a second active transmission configuration indicator state set for a second component carrier in the component carrier set, wherein the first active transmission configuration indicator state set is different from the second active transmission configuration indicator state set.

[0186] The control transmitter 1315 may transmit a medium access control-control element to the UE, the medium access control-control element indicating the first active transmission configuration indicator state set and the second active transmission configuration indicator state set for the component carrier set.

[0187] The CC transceiver 1320 may communicate with the network entity using at least the first component carrier and the second component carrier based on the determination.

[0188] The TCI state manager 1325 may transmit an activation command for the first component carrier in the media access control-control element, wherein the activation command includes a first bit that is set to indicate that different sets of active transmission configuration indicator states are activated for different component carriers in the set of component carriers. In some examples, the TCI state manager 1325 may transmit configuration information indicating a subset of available transmission configuration indicator states to the UE, wherein the subset is less than the total number of configurable transmission configuration indicator states. In some examples, the media access control-control element explicitly indicates which transmission configuration indicator states are active for each component carrier. In some cases, the activation command indicates a first active transmission configuration indicator state with an associated first reference signal for the first component carrier, and wherein at least one or more transmission configuration indicator states associated with the first reference signal of the second component carrier are activated.

[0189] In some cases, the medium access control-control element includes a first set of bits associated with the first component carrier, which indicates which of the transmission configuration indicator states in the available transmission configuration indicator state subset are in the first active transmission configuration indicator state set. In some cases, the medium access control-control element includes a second set of bits associated with the second component carrier, which indicates which of the transmission configuration indicator states in the available transmission configuration indicator state subset are in the second active transmission configuration indicator state set.

[0190] In some cases, the media access control-control element includes a first set of entries, each entry in the first set of entries is associated with a corresponding component carrier in the set of component carriers, and each entry in the first set of entries provides a component carrier identifier and a bandwidth portion identifier. In some cases, the media access control-control element includes at least a second entry outside the first set of entries, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth portions in the set of component carriers or bandwidth portions.

[0191] The TCI state mapping component 1330 can identify two or more active transmission configuration indicator state mappings for the first component carrier and the second component carrier. In some examples, the TCI state mapping component 1330 can transmit in the media access control-control element an activation command for a first mapping associated with the first active transmission configuration indicator state set in the set of one or more active transmission configuration indicator states, and wherein the second active transmission configuration indicator state set is activated for the second component carrier based on a second mapping provided in the media access control-control element. In some cases, the activation command for the first active transmission configuration indicator state set indicates one or more bandwidth part identifiers, and an identifier of the first mapping. In some cases, each mapping is transmitted in radio resource control signaling.

[0192] The QCL manager 1335 may identify QCL parameters associated with the TCI state. In some cases, the transmission configuration indicator states associated with the set of component carriers are located in the same cell group in the mmWave frequency band with the same identification and have the same spatial quasi-co-location parameters (i.e., the same TCI state in two CCs corresponds to the same beam). In some cases, the activated transmission configuration indicator states in the component carriers and bandwidth portions in the sub-6 GHz band use Doppler or delay related quasi-co-located reference signals associated with the bandwidth portion associated with the activated transmission configuration indicator state (e.g., if the same TCI state is activated in different BWPs and QCL Type A is defined, the QCL Type A reference signal from the first BWP can be used to activate the same TCI state in the second BWP).

[0193] Fig.14 A diagram of a system 1400 including a device 1405 supporting a transmission configuration indicator state activation technique for carrier aggregation according to various aspects of the present disclosure is shown. The device 1405 may be an example of or include components 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 communications, 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., a bus 1450).

[0194] The communication manager 1410 may determine, for communication with a UE, a first active transmission configuration indicator state set for a first component carrier in a component carrier set and a second active transmission configuration indicator state set for a second component carrier in the component carrier set, wherein the first active transmission configuration indicator state set is different from the second active transmission configuration indicator state set; transmit a media access control-control element to the UE, the media access control-control element indicating the first active transmission configuration indicator state set and the second active transmission configuration indicator state set for the component carrier set; and based on the determination, use at least the first component carrier and the second component carrier to communicate with the network entity.

[0195] The network communications manager 1415 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1415 may manage the delivery of data communications for client devices, such as one or more UEs 115.

[0196] The transceiver 1420 may communicate bidirectionally 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 bidirectionally with another wireless transceiver. The transceiver 1420 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0197] In some cases, a wireless device may include a single antenna 1425. However, in some cases, the device may have more than one antenna 1425, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0198] 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 various functions described herein. In some cases, memory 1430 may include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0199] Processor 1440 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1440 may be configured to operate a memory array using a memory controller. In some cases, 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 a transmission configuration indicator state activation technique for carrier aggregation).

[0200] Based on using a single MAC-CE command to select multiple active TCI state sets for PDSCH that can be applied to multiple BWP / CCs, the processor of the base station 105 can efficiently activate different active TCI state sets for data communication. This reduced signaling can provide reduced overhead and enhanced system efficiency, reduced power consumption and reduced latency.

[0201] The inter-site communication manager 1445 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UE 115 in cooperation with other base stations 105. For example, the inter-site 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-site communication manager 1445 may provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0202] The code 1435 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1435 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 1435 may not be directly executed by the processor 1440, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0203] Fig.15 A flow chart illustrating a method 1500 for supporting a transmission configuration indicator state activation technique for carrier aggregation according to aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1500 may be implemented by a UE 115 or a component thereof as described herein. Figures 7 to 10 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the following functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the following functions.

[0204] At 1505, the UE may receive a media access control-control element from a network entity, the media access control-control element indicating two or more active transmission configuration indicator state sets for a set of component carriers configured for the UE. The operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be performed as described in reference to Figures 7 to 10 The control receiver described is executed.

[0205] At 1510, the UE may determine, based on the received media access control-control element, a first set of active transmission configuration indicator states for a first component carrier and a second set of active transmission configuration indicator states for a second component carrier, wherein the first set of active transmission configuration indicator states is different from the second set of active transmission configuration indicator states. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be performed as described in reference to Figures 7 to 10 The CC Configuration Manager described above is used to perform

[0206] At 1515, the UE may communicate with the network entity using at least the first component carrier and the second component carrier based on the determination. The operations of 1515 may be performed according to the methods described herein. In some examples, aspects of the operations of 1515 may be performed as described in reference to Figures 7 to 10 The described CC transceiver is used to perform.

[0207] Fig.16 A flow chart illustrating a method 1600 for supporting a transmission configuration indicator state activation technique for carrier aggregation according to various aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1600 may be implemented by a UE 115 or a component thereof as described herein. Figures 7 to 10 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the following functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the following functions.

[0208] At 1605, the UE may receive a media access control-control element from a network entity, the media access control-control element indicating two or more active transmission configuration indicator state sets for a set of component carriers configured for the UE. The operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be performed as described in reference to Figures 7 to 10 The control receiver described is executed.

[0209] At 1610, the UE may receive an activation command for the first component carrier in the media access control-control element, wherein the activation command includes a first bit, the first bit being set to indicate that different sets of active transmission configuration indicator states are activated for different component carriers in the set of component carriers. The operations of 1610 may be performed according to the methods described herein. In some examples, aspects of the operations of 1610 may be performed as described in reference to Figures 7 to 10 The TCI state manager described is used to perform the above.

[0210] At 1615, the UE may identify a first active transmission configuration indicator state based on the activation command for the first component carrier. The operations of 1615 may be performed according to the methods described herein. In some examples, aspects of the operations of 1615 may be as described in reference to Figures 7 to 10 The TCI state manager described is used to perform the above.

[0211] At 1620, the UE may identify a first reference signal associated with the first active transmission configuration indicator state. The operations of 1620 may be performed according to the methods described herein. In some examples, aspects of the operations of 1620 may be performed as described with reference to Figures 7 to 10 The described reference signal manager is implemented.

[0212] At 1625, the UE may activate one or more transmission configuration indicator states associated with the first reference signal for at least the second component carrier. The operations of 1625 may be performed according to the methods described herein. In some examples, aspects of the operations of 1625 may be performed as described in reference to Figures 7 to 10 The TCI state manager described is used to perform the above.

[0213] At 1630, the UE may communicate with the network entity using at least the first component carrier and the second component carrier based on the determination. The operations of 1630 may be performed according to the methods described herein. In some examples, aspects of the operations of 1630 may be performed as described in reference to Figures 7 to 10 The described CC transceiver is used to perform.

[0214] Fig.17 1 is a flow chart illustrating a method 1700 for supporting a transmission configuration indicator state activation technique for carrier aggregation according to various aspects of the present disclosure. The operations of the method 1700 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1700 may be implemented by a UE 115 or a component thereof as described in reference to Figures 7 to 10 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the following functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the following functions.

[0215] At 1705, the UE may receive a media access control-control element from a network entity, the media access control-control element indicating two or more active transmission configuration indicator state sets for a set of component carriers configured for the UE. The operations of 1705 may be performed according to the methods described herein. In some examples, aspects of the operations of 1705 may be performed as described in reference to Figures 7 to 10 The control receiver described is executed.

[0216] At 1710, the UE may identify two or more active transmission configuration indicator state mappings for the first component carrier and the second component carrier. The operations of 1710 may be performed according to the methods described herein. In some examples, aspects of the operations of 1710 may be performed as described in reference to Figures 7 to 10 The described TCI state mapping component is used to perform.

[0217] At 1715, the UE may identify, in the media access control-control element, an activation command for a first mapping associated with the first active transmission configuration indicator state set. The operations of 1715 may be performed according to the methods described herein. In some examples, aspects of the operations of 1715 may be performed as described in reference to Figures 7 to 10 The described TCI state mapping component is used to perform.

[0218] At 1720, the UE may activate the first active transmission configuration indicator state set for the first component carrier based on the mapping. The operations of 1720 may be performed according to the methods described herein. In some examples, aspects of the operations of 1720 may be as described in reference to Figures 7 to 10 The described TCI state mapping component is used to perform.

[0219] At 1725, the UE may communicate with the network entity using at least the first component carrier and the second component carrier based on the determination. The operations of 1725 may be performed according to the methods described herein. In some examples, aspects of the operations of 1725 may be performed as described in reference to Figures 7 to 10 The described CC transceiver is used to perform.

[0220] Fig.18 A flow chart illustrating a method 1800 for supporting a transmission configuration indicator state activation technique for carrier aggregation according to various aspects of the present disclosure is shown. The operations of the method 1800 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1800 may be implemented by a UE 115 or a component thereof as described herein. Figures 7 to 10 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the following functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the following functions.

[0221] At 1805, the UE may receive configuration information indicating a subset of available transmission configuration indicator states, wherein the subset is less than the total number of configurable transmission configuration indicator states. The operations of 1805 may be performed according to the methods described herein. In some examples, aspects of the operations of 1805 may be performed as described in reference to Figures 7 to 10 The TCI state manager described is used to perform the above.

[0222] At 1810, the UE may receive a media access control-control element from a network entity, the media access control-control element indicating two or more active transmission configuration indicator state sets for a set of component carriers configured for the UE. The operations of 1810 may be performed according to the methods described herein. In some examples, aspects of the operations of 1810 may be performed as described in reference to Figures 7 to 10 In some cases, the MAC-control element explicitly indicates which transmission configuration indicator states are active for each component carrier.

[0223] At 1815, the UE may determine, based on the received media access control-control element, a first set of active transmission configuration indicator states for the first component carrier and a second set of active transmission configuration indicator states for the second component carrier, wherein the first set of active transmission configuration indicator states is different from the second set of active transmission configuration indicator states. 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 as described in reference to Figures 7 to 10 The CC Configuration Manager described above is used to perform

[0224] At 1820, the UE may communicate with the network entity using at least the first component carrier and the second component carrier based on the determination. 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 as described in reference to Figures 7 to 10 The described CC transceiver is used to perform.

[0225] Fig.19 A flow chart illustrating a method 1900 for supporting a transmission configuration indicator state activation technique for carrier aggregation according to various aspects of the present disclosure is shown. The operations of the method 1900 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 1900 may be implemented by a base station 105 or components thereof as described herein. Figures 11 to 14 In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0226] At 1905, the base station may determine, for communication with the UE, a first set of active transmission configuration indicator states for a first component carrier in a set of component carriers and a second set of active transmission configuration indicator states for a second component carrier in the set of component carriers, wherein the first set of active transmission configuration indicator states is different from the second set of active transmission configuration indicator states. 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 as described with reference to Figures 11 to 14 The CC Configuration Manager described above is used to perform

[0227] At 1910, the base station may transmit a media access control-control element to the UE, the media access control-control element indicating the first active transmission configuration indicator state set and the second active transmission configuration indicator state set for the component carrier set. 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 as described in reference to Figures 11 to 14 The described control transmitter is performed.

[0228] At 1915, the base station may communicate with the network entity using at least the first component carrier and the second component carrier based on the determination. 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 as described in reference to Figures 11 to 14 The described CC transceiver is used to perform.

[0229] Fig. 20 A flow chart illustrating a method 2000 for supporting a transmission configuration indicator state activation technique for carrier aggregation according to aspects of the present disclosure is shown. The operations of the method 2000 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 2000 may be implemented by a base station 105 or components thereof as described herein. Figures 11 to 14 In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0230] At 2005, the base station may determine, for communication with the UE, a first set of active transmission configuration indicator states for a first component carrier in a set of component carriers and a second set of active transmission configuration indicator states for a second component carrier in the set of component carriers, wherein the first set of active transmission configuration indicator states is different from the second set of active transmission configuration indicator states. 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 as described in reference to Figures 11 to 14 The CC Configuration Manager described above is used to perform

[0231] At 2010, the base station may transmit a media access control-control element to the UE, the media access control-control element indicating the first active transmission configuration indicator state set and the second active transmission configuration indicator state set for the component carrier set. The operation of 2010 may be performed according to the method described herein. In some examples, various aspects of the operation of 2010 may be performed as described in reference to Figures 11 to 14 The described control transmitter is performed.

[0232] At 2015, the base station may transmit an activation command for the first component carrier in the media access control-control element, wherein the activation command includes a first bit, and the first bit is set to indicate that different active transmission configuration indicator state sets are activated for different component carriers in the component carrier set. The operation of 2015 may be performed according to the method described herein. In some examples, various aspects of the operation of 2015 may be performed as described in reference to Figures 11 to 14 The TCI state manager described is used to perform the above.

[0233] At 2020, the base station may, based on the determination, use at least the first component carrier and the second component carrier to communicate with the network entity. 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 as described in reference to Figures 11 to 14 The described CC transceiver is used to perform.

[0234] Fig.21 A flow chart illustrating a method 2100 for supporting a transmission configuration indicator state activation technique for carrier aggregation according to aspects of the present disclosure is shown. The operations of the method 2100 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 2100 may be implemented by a base station 105 or components thereof as described herein. Figures 11 to 14 In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0235] At 2105, the base station may determine, for communication with the UE, a first set of active transmission configuration indicator states for a first component carrier in a set of component carriers and a second set of active transmission configuration indicator states for a second component carrier in the set of component carriers, wherein the first set of active transmission configuration indicator states is different from the second set of active transmission configuration indicator states. The operations of 2105 may be performed according to the methods described herein. In some examples, aspects of the operations of 2105 may be performed as described in reference to Figures 11 to 14 The CC Configuration Manager described above is used to perform

[0236] At 2110, the base station may identify two or more active transmission configuration indicator state mappings for the first component carrier and the second component carrier. The operations of 2110 may be performed according to the methods described herein. In some examples, aspects of the operations of 2110 may be performed as described in reference to Figures 11 to 14 The described TCI state mapping component is used to perform.

[0237] At 2115, the base station may transmit, in the media access control-control element, an activation command for a first mapping associated with the first active transmission configuration indicator state set, and wherein the second active transmission configuration indicator state set is activated for the second component carrier based on a second mapping provided in the media access control-control element. The operations of 2115 may be performed according to the methods described herein. In some examples, aspects of the operations of 2115 may be performed as described in reference to Figures 11 to 14 The described TCI state mapping component is used to perform.

[0238] At 2120, the base station may communicate with the network entity using at least the first component carrier and the second component carrier based on the determination. The operations of 2120 may be performed according to the methods described herein. In some examples, aspects of the operations of 2120 may be performed as described in reference to Figures 11 to 14 The described CC transceiver is used to perform.

[0239] Fig. 22 A flow chart illustrating a method 2200 for supporting a transmission configuration indicator state activation technique for carrier aggregation according to aspects of the present disclosure is shown. The operations of the method 2200 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 2200 may be implemented by a base station 105 or components thereof as described herein. Figures 11 to 14 In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0240] At 2205, the base station may determine, for communication with the UE, a first set of active transmission configuration indicator states for a first component carrier in a set of component carriers and a second set of active transmission configuration indicator states for a second component carrier in the set of component carriers, wherein the first set of active transmission configuration indicator states is different from the second set of active transmission configuration indicator states. The operations of 2205 may be performed according to the methods described herein. In some examples, aspects of the operations of 2205 may be performed as described in reference to Figures 11 to 14 The CC Configuration Manager described above is used to perform

[0241] At 2210, the base station may transmit configuration information indicating a subset of available transmission configuration indicator states to the UE, wherein the subset is less than the total number of configurable transmission configuration indicator states. The operations of 2210 may be performed according to the methods described herein. In some examples, aspects of the operations of 2210 may be performed as described in reference to Figures 11 to 14 The TCI state manager described is used to perform the above.

[0242] At 2215, the base station may transmit a media access control-control element to the UE, the media access control-control element indicating the first active transmission configuration indicator state set and the second active transmission configuration indicator state set for the component carrier set. The operations of 2215 may be performed according to the methods described herein. In some examples, aspects of the operations of 2215 may be performed as described in reference to Figures 11 to 14 The described control transmitter is performed. In some cases, the medium access control-control element explicitly indicates which transmission configuration indicator states are active for each component carrier.

[0243] At 2220, the base station may communicate with the network entity using at least the first component carrier and the second component carrier based on the determination. The operations of 2220 may be performed according to the methods described herein. In some examples, aspects of the operations of 2220 may be performed as described in reference to Figures 11 to 14 The described CC transceiver is used to perform.

[0244] It should be noted that the methods described herein describe possible implementations, and that the various operations and steps may be rearranged or otherwise modified and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0245] The following provides an overview of various examples of the present disclosure:

[0246] Example 1: A method for wireless communication at a UE, comprising: receiving a media access control-control element, which indicates a set of one or more active transmission configuration indicator states for multiple component carriers configured for the UE; determining, at least in part based on the received media access control-control element, that the set of one or more active transmission configuration indicator states is associated with a first component carrier and a second component carrier among the multiple component carriers; and based at least in part on the determination, using at least the first component carrier and the second component carrier to communicate with a network entity.

[0247] Example 2: As described in Example 1, receiving a media access control-control element includes: receiving a first plurality of entries in the media access control-control element, each of the first plurality of entries being associated with a corresponding component carrier among the multiple component carriers, each entry in the first plurality of entries providing a component carrier identifier and a bandwidth part identifier; and receiving at least a second entry other than the first plurality of entries in the media access control-control element, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth parts among the multiple component carriers or bandwidth parts.

[0248] Example 3: The method as in Example 1 further includes: identifying two or more active transmission configuration indicator state mappings for the first component carrier and the second component carrier; receiving an activation command for a first mapping associated with a first active transmission configuration indicator state set in the set of one or more active transmission configuration indicator states in the media access control-control element; and activating the first active transmission configuration indicator state set for the first component carrier based at least in part on the first mapping.

[0249] Example 4: As in the method of Example 3, the activation command for the first active transmission configuration indicator state set indicates one or more bandwidth part identifiers and an identifier of the first active transmission configuration indicator state set.

[0250] Example 5: As in the method of Example 3, the first mapping is received from the base station in radio resource control signaling.

[0251] Example 6: As in the method of Example 1, each of the multiple component carriers has an associated transmission configuration indicator state identifier set, and the same transmission configuration indicator state identifier for each of the multiple component carriers in the millimeter wave band has the same spatial quasi-co-location parameters.

[0252] Example 7: As in the method of Example 1, each of the activated transmission configuration indicator states of the set of one or more active transmission configuration indicator states in the multiple component carriers and bandwidth parts in the frequency band below 6 GHz uses the same Doppler or delay-related quasi-co-located reference signal as the bandwidth part associated with the activated transmission configuration indicator state.

[0253] Example 8: A method for wireless communication at a network entity, comprising: identifying a media access control-control element, which indicates a set of one or more active transmission configuration indicator states for multiple component carriers configured for a UE; determining, at least in part based on the identified media access control-control element, that a first component carrier and a second component carrier among the multiple component carriers are associated with the set of one or more active transmission configuration indicator states; transmitting the media access control-control element to the UE; and communicating with the UE using at least the first component carrier and the second component carrier based at least in part on the determination.

[0254] Example 9: As described in Example 8, transmitting a media access control-control element includes: transmitting a first plurality of entries in the media access control-control element, each of the first plurality of entries being associated with a corresponding component carrier among the multiple component carriers, each entry in the first plurality of entries providing a component carrier identifier and a bandwidth part identifier; and transmitting at least a second entry other than the first plurality of entries in the media access control-control element, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth parts among the multiple component carriers or bandwidth parts.

[0255] Example 10: The method as described in Example 8 further includes: identifying two or more active transmission configuration indicator state mappings for the first component carrier and the second component carrier; and transmitting an activation command for a first mapping associated with a first active transmission configuration indicator state set in the set of one or more active transmission configuration indicator states in the media access control-control element; and wherein a second active transmission configuration indicator state set is activated for the second component carrier at least in part based on a second mapping provided in the media access control-control element.

[0256] Example 11: As described in Example 10, the activation command for the first active transmission configuration indicator state set indicates one or more bandwidth part identifiers and an identifier of the first mapping.

[0257] Example 12: As a method as described in Example 10, the mapping is transmitted in radio resource control signaling.

[0258] Example 13: As in the method of Example 8, each of the multiple component carriers has an associated transmission configuration indicator state identifier set, and the same transmission configuration indicator state identifier for each of the multiple component carriers in the millimeter wave band has the same spatial quasi-co-location parameters.

[0259] Example 14: As in the method of Example 8, each of the activated transmission configuration indicator states of the set of one or more active transmission configuration indicator states in the multiple component carriers and bandwidth portions in the frequency band below 6 GHz uses the same Doppler or delay-related quasi-co-located reference signal as the bandwidth portion associated with the activated transmission configuration indicator state.

[0260] Example 15: A method for performing wireless communications at a UE, comprising: receiving a media access control-control element from a network entity, the media access control-control element indicating two or more active transmission configuration indicator state sets for multiple component carriers configured for the UE; determining a first active transmission configuration indicator state set for a first component carrier and a second active transmission configuration indicator state set for a second component carrier based at least in part on the received media access control-control element, the first active transmission configuration indicator state set being different from the second active transmission configuration indicator state set; and communicating with the network entity using at least the first component carrier and the second component carrier based at least in part on the determination.

[0261] Example 16: As described in Example 15, receiving a media access control-control element includes: receiving a first plurality of entries in the media access control-control element, each of the first plurality of entries being associated with a corresponding component carrier among the multiple component carriers, each entry in the first plurality of entries providing a component carrier identifier and a bandwidth part identifier; and receiving at least a second entry other than the first plurality of entries in the media access control-control element, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth parts among the multiple component carriers or bandwidth parts.

[0262] Example 17: As described in Example 15, an activation command for the first component carrier is received in the media access control-control element, and the activation command includes a first bit, which is set to indicate that different active transmission configuration indicator state sets are activated for different component carriers in the component carrier set.

[0263] Example 18: The method as described in Example 17, identifying a first active transmission configuration indicator state based at least in part on the activation command for the first component carrier; identifying a first reference signal ID associated with the first active transmission configuration indicator state; and activating one or more transmission configuration indicator states associated with the first reference signal ID of at least the second component carrier.

[0264] Example 19: As described in Example 18, activating the transmission configuration indicator state associated with the first reference signal ID of each remaining component carrier in the multiple component carriers; and repeating the identification and activation for one or more other active transmission configuration indicator states provided in the media access control-control element including the first bit, wherein the first bit is set to indicate that different sets of active transmission configuration indicator states are activated in the multiple component carriers.

[0265] Example 20: As described in Example 15, two or more active transmission configuration indicator state mappings for the first component carrier and the second component carrier are identified; an activation command for a first mapping associated with the first active transmission configuration indicator state set is received in the media access control-control element; and the first active transmission configuration indicator state set is activated for the first component carrier based at least in part on the first mapping, the activation command for the first active transmission configuration indicator state set indicating one or more bandwidth part identifiers and an identifier of the first active transmission configuration indicator state set.

[0266] Example 21: As in the method of Example 15, each of the multiple component carriers has an associated transmission configuration indicator state identifier set, and the same transmission configuration indicator state identifier for each of the multiple component carriers in the millimeter wave band has the same spatial quasi-co-location parameters.

[0267] Example 22: As in the method of Example 15, each of the multiple activated transmission configuration indicator states in the multiple component carriers and bandwidth parts in the sub-6 GHz frequency band uses the same Doppler or delay-related quasi-co-located reference signal as the bandwidth part associated with the activated transmission configuration indicator state.

[0268] Example 23: A method for performing wireless communications at a base station, comprising: determining, for communication with a UE, a first active transmission configuration indicator state set for a first component carrier among multiple component carriers and a second active transmission configuration indicator state set for a second component carrier among the multiple component carriers, the first active transmission configuration indicator state set being different from the second active transmission configuration indicator state set; transmitting a media access control-control element to the UE, the media access control-control element indicating the first active transmission configuration indicator state set and the second active transmission configuration indicator state set for the multiple component carriers; and based at least in part on the determination, using at least the first component carrier and the second component carrier to communicate with the UE.

[0269] Example 24: As described in Example 23, transmitting a media access control-control element includes: transmitting a first plurality of entries in the media access control-control element, each of the first plurality of entries being associated with a corresponding component carrier among the multiple component carriers, each entry in the first plurality of entries providing a component carrier identifier and a bandwidth part identifier; and transmitting at least a second entry other than the first plurality of entries in the media access control-control element, the at least second entry indicating one or more active transmission configuration indicator states for two or more component carriers or bandwidth parts among the multiple component carriers or bandwidth parts.

[0270] Example 25: The method as described in Example 23 further includes: transmitting an activation command for the first component carrier in the media access control-control element, the activation command including a first bit, which is set to indicate that different active transmission configuration indicator state sets are activated for different component carriers among the multiple component carriers.

[0271] Example 26: As described in Example 25, the activation command indicates a first active transmission configuration indicator state with an associated first reference signal ID for the first component carrier, and one or more transmission configuration indicator states associated with the first reference signal ID of at least the second component carrier are activated.

[0272] Example 27: The method as described in Example 23 further includes: transmitting configuration information indicating a subset of available transmission configuration indicator states to the UE, which subset is less than the total number of configurable transmission configuration indicator states; and the media access control-control element explicitly indicates which transmission configuration indicator states are active for each component carrier.

[0273] Example 28: As described in Example 27, transmitting a media access control-control element further includes: transmitting a first bit set associated with the first component carrier in the media access control-control element, the first bit set indicating which transmission configuration indicator states in the available transmission configuration indicator state subset are in the first active transmission configuration indicator state set; and transmitting a second bit set associated with the second component carrier in the media access control-control element, the second bit set indicating which transmission configuration indicator states in the available transmission configuration indicator state subset are in the second active transmission configuration indicator state set.

[0274] Example 29: As described in Example 23, each of the multiple component carriers has an associated transmission configuration indicator state identifier set, and the same transmission configuration indicator state identifier for each of the multiple component carriers in the millimeter wave band has the same spatial quasi-co-location parameters.

[0275] Example 30: As described in Example 23, each of the multiple activated transmission configuration indicator states in the multiple component carriers and bandwidth portions in the sub-6 GHz frequency band uses the same Doppler or delay-related quasi-co-located reference signal as the bandwidth portion associated with the activated transmission configuration indicator state.

[0276] Example 31: An apparatus for wireless communication, comprising at least one means for performing the method as described in any of Examples 1 to 7.

[0277] Example 32: An apparatus for wireless communication, comprising at least one means for performing the method as described in any of Examples 8 to 14.

[0278] Example 33: An apparatus for wireless communication, comprising at least one means for performing the method as described in any of Examples 15 to 22.

[0279] Example 34: An apparatus for wireless communication, comprising at least one means for performing the method as described in any of Examples 23 to 30.

[0280] Example 35: An apparatus for wireless communication, comprising a processor and a memory coupled to the processor, the processor and the memory configured to cause the apparatus to perform the method as described in any one of Examples 1 to 7.

[0281] Example 36: An apparatus for wireless communication, comprising a processor and a memory coupled to the processor, the processor and the memory configured to cause the apparatus to perform the method as described in any one of Examples 8 to 14.

[0282] Example 37: An apparatus for wireless communication, comprising a processor and a memory coupled to the processor, the processor and the memory configured to cause the apparatus to perform the method as described in any one of Examples 15 to 22.

[0283] Example 38: An apparatus for wireless communication, comprising a processor and a memory coupled to the processor, the processor and the memory configured to cause the apparatus to perform the method as described in any one of Examples 23 to 30.

[0284] Example 39: A non-transitory computer-readable medium storing code for wireless communication, comprising: a processor; a memory in electronic communication with the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as any one of Examples 1 to 7.

[0285] Example 40: A non-transitory computer-readable medium storing code for wireless communication, comprising: a processor; a memory in electronic communication with the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as any one of Examples 8 to 14.

[0286] Example 41: A non-transitory computer-readable medium storing code for wireless communication, comprising: a processor; a memory in electronic communication with the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as any one of Examples 15 to 22.

[0287] Example 42: A non-transitory computer-readable medium storing code for wireless communication, comprising: a processor; a memory in electronic communication with the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as any one of Examples 23 to 30.

[0288] The technology described herein can be used in various wireless communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA) and other systems. CDMA systems can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA). CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions are generally referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is generally referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD), etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. TDMA systems can implement radio technologies such as Global System for Mobile Communications (GSM).

[0289] OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS). LTE, LTE-A, and LTE-A Pro are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, LTE-A Pro, NR, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein may be used for systems and radio technologies mentioned herein as well as for other systems and radio technologies. Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein may also be applicable to applications other than LTE, LTE-A, LTE-A Pro, or NR applications.

[0290] A macro cell generally covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UEs with service subscriptions to a network provider. A small cell may be associated with a lower power base station (compared to a macro cell), and the small cell may operate in the same or different (e.g., licensed, unlicensed, etc.) frequency band as the macro cell. According to various examples, a small cell may include a pico cell, a femto cell, and a micro cell. A pico cell, for example, may cover a smaller geographic area and may allow unrestricted access by UEs with service subscriptions to a network provider. A femto cell may also cover a smaller geographic area (e.g., a residence) and may provide restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG), UEs of users in the residence, etc.). An eNB for a macro cell may be referred to as a macro eNB. An eNB for a small cell may be referred to as a small cell eNB, a pico eNB, a femto eNB, or a home eNB. An eNB may support one or more (eg, two, three, four, etc.) cells and may also support communication using one or more component carriers.

[0291] The wireless communication systems described herein may support synchronous or asynchronous operation. For synchronous operation, each base station may have similar frame timing, and transmissions from different base stations may be roughly aligned in time. For asynchronous operation, each base station may have different frame timing, and transmissions from different base stations may not be aligned in time. The techniques described herein may be used for synchronous or asynchronous operation.

[0292] The information and signals described herein may be represented using any of a variety of different techniques and technologies. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0293] The various illustrative blocks and modules described in conjunction with the disclosure herein may be implemented or executed with a general purpose processor, a DSP, an 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 herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any conventional 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, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0294] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted by a computer-readable medium as one or more instructions or codes. Other examples and implementations fall within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features that implement the functions may also be physically located in various locations, including being distributed so that parts of the functions are implemented at different physical locations.

[0295] Computer-readable medium includes both non-transient computer storage medium and communication medium, and it includes any medium that facilitates computer program to transfer from one place to another place.Non-transient storage medium can be any available medium that can be accessed by general or special-purpose computer.As an example and not limitation, non-transient computer-readable medium can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, disk storage or other magnetic storage device, or can be used to carry or store instruction or data structure form of desired program code means and can be accessed by general or special-purpose computer or general or special-purpose processor any other non-transient medium.Similarly, any connection is also properly referred to as computer-readable medium.For example, if software is transmitted from website, server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then the coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are just included in the definition of medium. Disk and disc as used herein include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0296] As used herein (including in the claims), "or" used in a list of items (e.g., a list of items with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Similarly, as used herein, the phrase "based on" should not be interpreted as referring to a closed set of conditions. For example, an exemplary 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 interpreted in the same manner as the phrase "based at least in part on."

[0297] In the accompanying drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number that distinguishes between similar components. If only the first reference number is used in the specification, the description may apply to any of the similar components having the same first reference number regardless of the second reference number, or other subsequent reference numbers.

[0298] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that may be implemented or that fall within the scope of the claims. The term "exemplary" as used herein means "used as an example, instance, or illustration" and does not mean "better than" or "better than other examples." This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques 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.

[0299] The description herein is provided to enable those skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those skilled in the art, and the universal 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 should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a user equipment UE, comprising: receiving a media access control-control element MAC-CE, the MAC-CE indicating a first set of one or more transmission configuration indicator (TCI) states for a plurality of component carriers configured for the UE, wherein the MAC-CE comprises an indication of one or more TCI state identifiers (IDs), each of the one or more TCI state IDs being associated with a first component carrier identified by the MAC-CE and with one or more additional component carriers not identified by the MAC-CE, and wherein the first component carrier and the one or more additional component carriers are among the plurality of component carriers; Based at least in part on the received MAC-CE and the indication of the one or more TCI state IDs, activate a same set of TCI states in the first set of one or more TCI states for a subset of component carriers in the plurality of component carriers, wherein the subset of component carriers includes the first component carrier.

2. The method of claim 1, wherein: Each TCI state ID of the one or more TCI state IDs is associated with a component carrier identifier and a bandwidth part identifier.

3. The method of claim 1, further comprising: identifying two or more mappings of TCI states for the plurality of component carriers; receiving, in the MAC-CE, an activation command for a first mapping associated with the same set of TCI states in the first set of one or more TCI states; as well as The same set of TCI states is activated based at least in part on the first mapping.

4. The method of claim 3, wherein: The activation command for the same set of TCI states indicates one or more bandwidth portion identifiers and identifiers of the same set of TCI states.

5. The method of claim 4, wherein: The first mapping is received in radio resource control signaling from a network entity.

6. The method of claim 1, wherein: Each of the plurality of component carriers has an associated set of TCI state IDs, and the same TCI state ID for each of the plurality of component carriers in the mmWave frequency band has the same corresponding spatial quasi-colocation parameters.

7. The method of claim 1, wherein: Each TCI state in the first set of one or more TCI states associated with the multiple component carriers and bandwidth parts in the sub-6 GHz frequency band uses a Doppler or delay-dependent quasi-co-located reference signal that is the same bandwidth part as the activated TCI state associated with.

8. The method of claim 1, further comprising: Based at least in part on the activation, communicating with a network entity using at least a portion of the subset of component carriers.

9. The method of claim 1, wherein: The indication of the one or more TCI state IDs indicates for which TCI state ID of the one or more TCI state IDs a corresponding TCI state of the first set of one or more TCI states is to be activated.

10. A method for wireless communication at a network entity, comprising: identifying a medium access control-control element MAC-CE, the MAC-CE indicating a first set of one or more transmission configuration indicator (TCI) states for a plurality of component carriers configured for a user equipment UE, wherein the MAC-CE comprises an indication of one or more TCI state identifiers (ID), each of the one or more TCI state IDs being associated with a first component carrier identified by the MAC-CE and with one or more additional component carriers not identified by the MAC-CE, and wherein the first component carrier and the one or more additional component carriers are among the plurality of component carriers; determining, based at least in part on the identified MAC-CE and the indication of the one or more TCI state IDs, that a same set of TCI states in the first set of one or more TCI states is to be activated for a subset of component carriers in the plurality of component carriers, wherein the subset of component carriers includes the first component carrier; and Send the MAC-CE.

11. The method of claim 10, wherein: Each TCI state ID of the one or more TCI state IDs is associated with a component carrier identifier and a bandwidth part identifier.

12. The method of claim 10, further comprising: identifying two or more mappings of TCI states for the plurality of component carriers; as well as An activation command is transmitted in the MAC-CE for a first mapping associated with the same set of TCI states in the first set of one or more TCI states.

13. The method of claim 12, wherein: The activation command for the same set of TCI states indicates one or more bandwidth portion identifiers and an identifier of the first mapping.

14. The method of claim 13, wherein: The two or more mappings are transmitted in radio resource control signaling.

15. The method of claim 10, wherein: Each of the plurality of component carriers has an associated set of TCI state IDs, and the same TCI state ID for each of the plurality of component carriers in the mmWave frequency band has the same corresponding spatial quasi-colocation parameters.

16. The method of claim 10, wherein: Each TCI state in the first set of one or more TCI states associated with the plurality of component carriers and bandwidth parts in a sub-6 GHz frequency band uses a same Doppler or delay-dependent quasi-co-located reference signal as the bandwidth part associated with an activated TCI state.

17. The method of claim 10, further comprising: Based at least in part on the determination, communicating with the UE using at least a portion of the subset of component carriers.

18. The method of claim 10, wherein: The indication of the one or more TCI state IDs indicates for which TCI state ID of the one or more TCI state IDs a corresponding TCI state of the first set of one or more TCI states is to be activated.

19. A method for wireless communication at a user equipment (UE), comprising: receiving a media access control-control element MAC-CE from a network entity, the MAC-CE indicating two or more groups of transmission configuration indicator TCI states for a plurality of component carriers configured for the UE, wherein the MAC-CE includes an indication of one or more TCI state identifiers IDs, each of the one or more TCI state IDs being associated with a first component carrier identified by the MAC-CE and with one or more additional component carriers not identified by the MAC-CE, and wherein the first component carrier and the one or more additional component carriers are among the plurality of component carriers; Based at least in part on the received MAC-CE and the indication of the one or more TCI state IDs, a first set of TCI states for the first component carrier and a second set of TCI states for the second component carrier are activated.

20. The method of claim 19, wherein: Each TCI state ID of the one or more TCI state IDs is associated with a component carrier identifier and a bandwidth part identifier.

21. The method of claim 19, further comprising: An activation command for the first component carrier is received in the MAC-CE, the activation command comprising a first bit, wherein the first bit is set to indicate that different TCI state sets are activated for different component carriers among the plurality of component carriers.

22. The method of claim 21, further comprising: identifying a first TCI state based at least in part on the activation command for the first component carrier; Identify a first reference signal ID associated with the first TCI state; as well as One or more TCI states associated with the first reference signal ID of at least the second component carrier are activated.

23. The method of claim 22, further comprising: activating a TCI state associated with the first reference signal ID of each remaining component carrier of the plurality of component carriers; as well as The activating is repeated for one or more other TCI states provided in the MAC-CE including the first bit, the first bit being set to indicate that different sets of active TCI states in the plurality of component carriers are activated.

24. The method of claim 19, further comprising: identifying two or more mappings of TCI states for the first component carrier and the second component carrier; receiving, in the MAC-CE, an activation command for a first mapping associated with the first set of TCI states; as well as activating the first set of TCI states for the first component carrier based at least in part on the first mapping, The activation command for the first group of TCI states indicates one or more bandwidth part identifiers and an identifier of the first group of TCI states.

25. The method of claim 19, wherein: Each of the plurality of component carriers has an associated set of TCI state IDs, and the same TCI state ID for each of the plurality of component carriers in the mmWave frequency band has the same corresponding spatial quasi-colocation parameters.

26. The method of claim 19, wherein: Each TCI state associated with multiple component carriers and bandwidth portions in the sub-6 GHz frequency band uses the same Doppler or delay-dependent quasi-co-located reference signal as the bandwidth portion associated with the activated TCI state.

27. A method for wireless communication at a network entity, comprising: determining, for communication with a user equipment UE, a first set of transmission configuration indicator (TCI) states for a first component carrier of a plurality of component carriers and a second set of TCI states for a second component carrier of the plurality of component carriers; Transmitting a media access control-control element MAC-CE, the MAC-CE indicating the first set of TCI states and the second set of TCI states for the multiple component carriers, wherein the MAC-CE includes an indication of one or more TCI state identifiers IDs, each of the one or more TCI state IDs is associated with a first component carrier identified by the MAC-CE and with one or more additional component carriers not identified by the MAC-CE, and wherein the first component carrier and the one or more additional component carriers are among the multiple component carriers.

28. The method of claim 27, wherein: Each TCI state ID of the one or more TCI state IDs is associated with a component carrier identifier and a bandwidth part identifier.

29. The method of claim 27, further comprising: An activation command for the first component carrier is transmitted in the MAC-CE, the activation command comprising a first bit, wherein the first bit is set to indicate that different TCI state sets are activated for different component carriers among the plurality of component carriers.

30. The method of claim 29, wherein: The activation command indicates a first TCI state with an associated first reference signal ID for the first component carrier, and at least one or more TCI states associated with the first reference signal ID of the second component carrier are activated.

31. The method of claim 27, further comprising: transmitting configuration information indicating a subset of available TCI states, wherein the subset is less than a total number of configurable TCI states; and The MAC-CE explicitly indicates which TCI states are active for each component carrier.

32. The method of claim 31, wherein: Transmitting the MAC-CE further comprises: transmitting in the MAC-CE a first set of bits associated with the first component carrier, the first set of bits indicating which TCI states of the subset of available TCI states are in the first set of TCI states; and A second set of bits associated with the second component carrier is transmitted in the MAC-CE, the second set of bits indicating which TCI states in the subset of available TCI states are in the second set of TCI states.

33. The method of claim 27, wherein: Each of the plurality of component carriers has an associated set of TCI state IDs, and the same TCI state ID for each of the plurality of component carriers in the mmWave frequency band has the same corresponding spatial quasi-colocation parameters.

34. The method of claim 29, wherein: Each TCI state associated with multiple component carriers and bandwidth portions in the sub-6 GHz frequency band uses the same Doppler or delay-dependent quasi-co-located reference signal as the bandwidth portion associated with the activated TCI state.

35. An apparatus for wireless communication at a user equipment UE, comprising: one or more memories; as well as One or more processors coupled to the one or more memories, the one or more processors configured to cause the UE to: receiving a media access control-control element MAC-CE, the MAC-CE indicating a first set of one or more transmission state indicators (TCI) states for a plurality of component carriers configured for the UE, wherein the MAC-CE comprises an indication of one or more TCI state identifiers (IDs), each of the one or more TCI state IDs being associated with a first component carrier identified by the MAC-CE and with one or more additional component carriers not identified by the MAC-CE, and wherein the first component carrier and the one or more additional component carriers are among the plurality of component carriers; Based at least in part on the received MAC-CE and the indication of the one or more TCI state IDs, activate a same set of TCI states in the first set of one or more TCI states for a subset of component carriers in the plurality of component carriers, wherein the subset of component carriers includes the first component carrier.

36. The apparatus of claim 35, wherein: Each TCI state ID of the one or more TCI state IDs is associated with a component carrier identifier and a bandwidth part identifier.

37. The apparatus of claim 35, wherein: The one or more processors are further configured to cause the UE to: identifying two or more mappings of TCI states for the plurality of component carriers; receiving, in the MAC-CE, an activation command for a first mapping associated with the same set of TCI states in the first set of one or more TCI states; as well as The same set of TCI states is activated based at least in part on the first mapping.

38. The apparatus of claim 37, wherein: The activation command for the same set of TCI states indicates one or more bandwidth portion identifiers and an identifier for the same set of TCI states.

39. The apparatus of claim 38, wherein: The first mapping is received in radio resource control signaling from a network entity.

40. The apparatus of claim 35, wherein: Each of the plurality of component carriers has an associated set of TCI state IDs, and the same TCI state ID for each of the plurality of component carriers in the mmWave frequency band has the same corresponding spatial quasi-colocation parameters.

41. The apparatus of claim 35, wherein: Each TCI state in the first set of one or more TCI states associated with multiple component carriers and bandwidth parts in the sub-6 GHz frequency band uses the same Doppler or delay-dependent quasi-co-located reference signal as the bandwidth part associated with the activated TCI state.

42. The apparatus of claim 35, wherein: The indication of the one or more TCI state IDs indicates for which TCI state ID of the one or more TCI state IDs a corresponding TCI state of the first set of one or more TCI states is to be activated.

43. An apparatus for wireless communication at a network entity, comprising: one or more memories; as well as One or more processors coupled to the one or more memories, the one or more processors configured to cause the network entity to: identifying a media access control-control element MAC-CE, the MAC-CE indicating a first set of one or more TCI states for a plurality of component carriers configured for a user equipment UE, wherein the MAC-CE comprises an indication of one or more TCI state identifiers ID, each of the one or more TCI state IDs being associated with a first component carrier identified by the MAC-CE and with one or more additional component carriers not identified by the MAC-CE, and wherein the first component carrier and the one or more additional component carriers are among the plurality of component carriers; determining, based at least in part on the identified MAC-CE and the indication of the one or more TCI state IDs, that a same set of TCI states in the first set of one or more TCI states for a subset of component carriers in the plurality of component carriers is to be activated, wherein the subset of component carriers includes the first component carrier; and Send the MAC-CE.

44. The apparatus of claim 43, wherein: Each TCI state ID of the one or more TCI state IDs is associated with a component carrier identifier and a bandwidth part identifier.

45. The apparatus of claim 43, wherein: The one or more processors are further configured to cause the network entity to: identifying two or more mappings of TCI states for the plurality of component carriers; and An activation command is transmitted in the MAC-CE for a first mapping associated with the same set of TCI states in the first set of one or more TCI states.

46. ​​The apparatus of claim 45, wherein: The activation command for the same set of TCI states indicates one or more bandwidth portion identifiers and an identifier of the first mapping.

47. The apparatus of claim 45, wherein: The two or more mappings are transmitted in radio resource control signaling.

48. The apparatus of claim 43, wherein: Each of the plurality of component carriers has an associated set of TCI state IDs, and the same TCI state ID for each of the plurality of component carriers in the mmWave frequency band has the same corresponding spatial quasi-colocation parameters.

49. The apparatus of claim 43, wherein: Each TCI state in the first set of one or more TCI states in the multiple component carriers and bandwidth parts in the sub-6 GHz frequency band uses a same Doppler or delay-dependent quasi-co-located reference signal as the bandwidth part associated with the activated TCI state.

50. The apparatus of claim 43, wherein: The indication of the one or more TCI state IDs indicates for which TCI state ID of the one or more TCI state IDs a corresponding TCI state of the first set of one or more TCI states is to be activated.

51. An apparatus for wireless communication at a user equipment UE, comprising: means for receiving a medium access control-control element MAC-CE, the MAC-CE indicating a first set of one or more transmission state indicators (TCI) states for a plurality of component carriers configured for the UE, wherein the MAC-CE comprises an indication of one or more TCI state identifiers (IDs), each of the one or more TCI state IDs being associated with a first component carrier identified by the MAC-CE and with one or more additional component carriers not identified by the MAC-CE, and wherein the first component carrier and the one or more additional component carriers are among the plurality of component carriers; means for activating, based at least in part on the received MAC-CE and the indication of the one or more TCI state IDs, a same set of TCI states in the first set of one or more TCI states for a subset of component carriers in the plurality of component carriers, wherein the subset of component carriers includes the first component carrier.

52. The apparatus of claim 51, wherein: Each TCI state ID of the one or more TCI state IDs is associated with a component carrier identifier and a bandwidth part identifier.

53. The apparatus of claim 51, further comprising: means for identifying two or more mappings of TCI states for the plurality of component carriers; means for receiving, in the MAC-CE, an activation command for a first mapping associated with the same set of TCI states in the first set of one or more TCI states; as well as Means for activating the same set of TCI states based at least in part on the first mapping.

54. The apparatus of claim 53, wherein: The activation command for the same set of TCI states indicates one or more bandwidth portion identifiers and an identifier for the same set of TCI states.

55. The apparatus of claim 54, wherein: The first mapping is received in radio resource control signaling from a network entity.

56. The apparatus of claim 51, wherein: Each of the plurality of component carriers has an associated set of TCI state IDs, and the same TCI state ID for each of the plurality of component carriers in the mmWave frequency band has the same corresponding spatial quasi-colocation parameters.

57. The apparatus of claim 51, wherein: Each TCI state in the first set of one or more TCI states associated with multiple component carriers and bandwidth parts in the sub-6 GHz frequency band uses the same Doppler or delay-dependent quasi-co-located reference signal as the bandwidth part associated with the activated TCI state.

58. The apparatus of claim 51, wherein: The indication of the one or more TCI state IDs indicates for which TCI state ID of the one or more TCI state IDs a corresponding TCI state of the first set of one or more TCI states is to be activated.

59. An apparatus for wireless communication at a network entity, comprising: means for identifying a medium access control-control element MAC-CE, the MAC-CE indicating a first set of one or more TCI states for a plurality of component carriers configured for a user equipment UE, wherein the MAC-CE comprises an indication of one or more TCI state identifiers ID, each of the one or more TCI state IDs being associated with a first component carrier identified by the MAC-CE and with one or more additional component carriers not identified by the MAC-CE, and wherein the first component carrier and the one or more additional component carriers are among the plurality of component carriers; means for determining, based at least in part on the identified MAC-CE and the indication of the one or more TCI state IDs, that a same set of TCI states in the first set of one or more TCI states for a subset of component carriers in the plurality of component carriers is to be activated, wherein the subset of component carriers includes the first component carrier; and A component for sending the MAC-CE.

60. The apparatus of claim 59, wherein: Each TCI state ID of the one or more TCI state IDs is associated with a component carrier identifier and a bandwidth part identifier.

61. The apparatus of claim 59, further comprising: means for identifying two or more mappings of TCI states for the plurality of component carriers; as well as means for transmitting, in the MAC-CE, an activation command for a first mapping associated with the same set of TCI states in the first set of one or more TCI states.

62. The apparatus of claim 61, wherein: The activation command for the same set of TCI states indicates one or more bandwidth portion identifiers and an identifier of the first mapping.

63. The apparatus of claim 62, wherein: The two or more mappings are transmitted in radio resource control signaling.

64. The apparatus of claim 59, wherein: Each of the plurality of component carriers has an associated set of TCI state IDs, and the same TCI state ID for each of the plurality of component carriers in the mmWave frequency band has the same corresponding spatial quasi-colocation parameters.

65. The apparatus of claim 59, wherein: Each TCI state in the first set of one or more TCI states in the multiple component carriers and bandwidth parts in the sub-6 GHz frequency band uses a same Doppler or delay-dependent quasi-co-located reference signal as the bandwidth part associated with the activated TCI state.

66. The apparatus of claim 59, wherein: The indication of the one or more TCI state IDs indicates for which TCI state ID of the one or more TCI state IDs a corresponding TCI state of the first set of one or more TCI states is to be activated.

67. A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by one or more processors to cause the UE to: receiving a medium access control-control element MAC-CE, the MAC-CE indicating a first set of one or more transmission state indicator TCI states for a plurality of component carriers configured for the UE, wherein: The MAC-CE comprises an indication of one or more TCI state identifiers (IDs), each of the one or more TCI state IDs being associated with a first component carrier identified by the MAC-CE and with one or more additional component carriers not identified by the MAC-CE, and wherein the first component carrier and the one or more additional component carriers are among the plurality of component carriers; Based at least in part on the received MAC-CE and the indication of the one or more TCI state IDs, activate a same set of TCI states in the first set of one or more TCI states for a subset of component carriers in the plurality of component carriers, wherein the subset of component carriers includes the first component carrier.

68. The non-transitory computer readable medium of claim 67, wherein: Each TCI state ID of the one or more TCI state IDs is associated with a component carrier identifier and a bandwidth part identifier.

69. The non-transitory computer readable medium of claim 67, wherein: The code also includes instructions executable by the one or more processors to cause the UE to perform the following: identifying two or more mappings of TCI states for the plurality of component carriers; receiving, in the MAC-CE, an activation command for a first mapping associated with the same set of TCI states in the first set of one or more TCI states; as well as The same set of TCI states is activated based at least in part on the first mapping.

70. The non-transitory computer readable medium of claim 69, wherein: The activation command for the same set of TCI states indicates one or more bandwidth portion identifiers and an identifier for the same set of TCI states.

71. The non-transitory computer readable medium of claim 70, wherein: The first mapping is received in radio resource control signaling from a network entity.

72. The non-transitory computer readable medium of claim 67, wherein: Each of the plurality of component carriers has an associated set of TCI state IDs, and the same TCI state ID for each of the plurality of component carriers in the mmWave frequency band has the same corresponding spatial quasi-colocation parameters.

73. The non-transitory computer readable medium of claim 67, wherein: Each TCI state in the first set of one or more TCI states associated with multiple component carriers and bandwidth parts in the sub-6 GHz frequency band uses the same Doppler or delay-dependent quasi-co-located reference signal as the bandwidth part associated with the activated TCI state.

74. The non-transitory computer readable medium of claim 67, wherein: The indication of the one or more TCI state IDs indicates for which TCI state ID of the one or more TCI state IDs a corresponding TCI state of the first set of one or more TCI states is to be activated.

75. A non-transitory computer-readable medium storing code for wireless communication at a network entity, the code comprising instructions executable by one or more processors to cause the network entity to: identifying a medium access control-control element MAC-CE, the MAC-CE indicating a first set of one or more TCI states for a plurality of component carriers configured for a user equipment UE, wherein The MAC-CE comprises an indication of one or more TCI state identifiers (IDs), each of the one or more TCI state IDs being associated with a first component carrier identified by the MAC-CE and with one or more additional component carriers not identified by the MAC-CE, and wherein the first component carrier and the one or more additional component carriers are among the plurality of component carriers; determining, based at least in part on the identified MAC-CE and the indication of the one or more TCI state IDs, that a same set of TCI states in the first set of one or more TCI states for a subset of component carriers in the plurality of component carriers is to be activated, wherein the subset of component carriers includes the first component carrier; and Send the MAC-CE.

76. The non-transitory computer readable medium of claim 75, wherein: Each TCI state ID of the one or more TCI state IDs is associated with a component carrier identifier and a bandwidth part identifier.

77. The non-transitory computer readable medium of claim 75, wherein: The code also includes instructions executable by the one or more processors to cause the network entity to: identifying two or more mappings of TCI states for the plurality of component carriers; and An activation command is transmitted in the MAC-CE for a first mapping associated with the same set of TCI states in the first set of one or more TCI states.

78. The non-transitory computer readable medium of claim 77, wherein: The activation command for the same set of TCI states indicates one or more bandwidth portion identifiers and an identifier of the first mapping.

79. The non-transitory computer readable medium of claim 78, wherein: The two or more mappings are transmitted in radio resource control signaling.

80. The non-transitory computer readable medium of claim 75, wherein: Each of the plurality of component carriers has an associated set of TCI state IDs, and the same TCI state ID for each of the plurality of component carriers in the mmWave frequency band has the same corresponding spatial quasi-colocation parameters.

81. The non-transitory computer readable medium of claim 75, wherein: Each TCI state in the first set of one or more TCI states in the multiple component carriers and bandwidth parts in the sub-6 GHz frequency band uses a same Doppler or delay-dependent quasi-co-located reference signal as the bandwidth part associated with the activated TCI state.

82. The non-transitory computer readable medium of claim 75, wherein: The indication of the one or more TCI state IDs indicates for which TCI state ID of the one or more TCI state IDs a corresponding TCI state of the first set of one or more TCI states is to be activated.

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