Transport Configuration Indicator Status Activation and Deactivation

Abstract

In general, various aspects of the present disclosure relate to wireless communications. In some aspects, a user equipment (UE) may receive an activation state message identifying one or more transmission configuration indicator (TCI) states or one or more spatial relationships, the activation state message being configured to change one or more TCI states or one or more activation states of one or more spatial relationships in a single bandwidth portion associated with a single component carrier; and selectively change one or more TCI states or one or more activation states of one or more spatial relationships in multiple bandwidth portions associated with multiple component carriers based at least in part on receiving the activation state message. Numerous other aspects are provided.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims the benefit of priority of U.S. Provisional Patent Application No. 62 / 894,274, filed on August 30, 2019, entitled “TRANSMISSION CONFIGURATION INDICATOR STATE ACTIVATION AND DEACTIVATION”; and U.S. Non-Provisional Patent Application No. 16 / 947,988, filed on August 26, 2020, entitled “TRANSMISSION CONFIGURATION INDICATOR STATE ACTIVATION AND DEACTIVATION”, and the above applications are hereby expressly incorporated herein by reference. Technical Field

[0003]

[0011] In general, aspects of the disclosure relate to wireless communications and to techniques and apparatus for transmission configuration indicator state activation and deactivation. Background Art

[0004] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard released by the Third Generation Partnership Project (3GPP).

[0005] A wireless communication network may include multiple base stations (BSs) that can support communications for multiple user equipments (UEs). User equipments (UEs) may communicate with base stations (BSs) via downlinks and uplinks. A downlink (or forward link) refers to a communication link from a BS to a UE, while an uplink (or reverse link) refers to a communication link from a UE to a BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit receive point (TRP), new radio (NR) BS, 5G Node B, etc.

[0006] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user equipment to communicate at the city, country, region, and even global level. New Radio (NR) (which may also be referred to as 5G) is an enhancement set to the LTE mobile standard released by the Third Generation Partnership Project (3GPP). NR is designed to better integrate with other open standards by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also referred to as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), so as to better support mobile broadband Internet access, as well as support beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation. However, as the demand for mobile broadband access continues to grow, there is a need for further improvements in LTE and NR technologies. Preferably, these improvements should be applicable to other multiple access technologies and telecommunication standards that adopt these technologies. Summary of the invention

[0007] In some aspects, a method of wireless communication performed by a user equipment (UE) may include: receiving an activation status message identifying one or more transmission configuration indicator (TCI) states or one or more spatial relationships, wherein the activation status message is configured to change the one or more TCI states or one or more activation states of the one or more spatial relationships in a single bandwidth portion associated with a single component carrier; and selectively changing the one or more TCI states or the one or more activation states of the one or more spatial relationships in multiple bandwidth portions associated with multiple component carriers based at least in part on receiving the activation status message.

[0008] In some aspects, a UE for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to: receive an activation state message identifying one or more TCI states or one or more spatial relationships, the activation state message configured to change the one or more TCI states or one or more activation states of the one or more spatial relationships in a single bandwidth portion associated with a single component carrier; and selectively change the one or more TCI states or the one or more activation states of the one or more spatial relationships in multiple bandwidth portions associated with multiple component carriers based at least in part on receiving the activation state message.

[0009] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, may cause the one or more processors to perform the following operations: receiving an activation state message identifying one or more TCI states or one or more spatial relationships, the activation state message being configured to change the one or more TCI states or one or more activation states of the one or more spatial relationships in a single bandwidth portion associated with a single component carrier; and selectively changing the one or more TCI states or one or more activation states of the one or more spatial relationships in multiple bandwidth portions associated with multiple component carriers based at least in part on receiving the activation state message.

[0010] In some aspects, an apparatus for wireless communication may include: a unit for receiving an activation status message identifying one or more TCI states or one or more spatial relationships, wherein the activation status message is configured to change the one or more TCI states or one or more activation states of the one or more spatial relationships in a single bandwidth portion associated with a single component carrier; and a unit for selectively changing the one or more TCI states or the one or more activation states of the one or more spatial relationships in multiple bandwidth portions associated with multiple component carriers based at least in part on receiving the activation status message.

[0011] In summary, aspects include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as fully described herein with reference to and as illustrated by the accompanying drawings and description.

[0012] The foregoing has been fairly broadly summarized according to the features and technical advantages of the examples of the present disclosure, so that the following detailed description can be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples can be easily used as the basis for modifying or designing other structures for the same purpose of achieving the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. When considered in conjunction with the accompanying drawings, the characteristics of the concepts disclosed herein (both their organization and method of operation) and the associated advantages will be better understood according to the description below. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and is not intended to be a definition of the limitations of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to fully understand the above-mentioned features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are shown in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not considered to limit the scope of the present disclosure, as the description may allow for other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0014] Figure 1 is a block diagram conceptually illustrating an example of a wireless communication network in accordance with various aspects of the present disclosure.

[0015] Figure 2 is a block diagram conceptually illustrating an example of a base station in a wireless communication network communicating with a UE according to various aspects of the present disclosure.

[0016] Figures 3A-3D is a diagram illustrating examples of TCI state activation and deactivation according to various aspects of the present disclosure.

[0017] Figure 4 is a diagram illustrating an example process performed, for example, by a user device, according to various aspects of the present disclosure.

[0018] Figure 5 is a conceptual data flow diagram illustrating an example of data flow between different modules / units / components in an example apparatus.

[0019] Figure 6 is a diagram showing an example of hardware implementation for an apparatus employing a processing system. DETAILED DESCRIPTION

[0020] The following is a more complete description of various aspects of the present disclosure with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. More specifically, these aspects are provided so that the present disclosure will be thorough and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. Based on the teachings herein, it should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether the aspect is implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect. For example, using any number of aspects set forth herein, a device can be implemented or a method can be implemented. In addition, the scope of the present disclosure is intended to cover such a device or method implemented using other structures, functions, or structures and functions other than the various aspects of the present disclosure set forth herein or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be embodied by one or more elements of the claims.

[0021] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0022] It should be noted that although various aspects may be described herein using terms commonly associated with 3G and / or 4G wireless technologies, various aspects of the present disclosure may be applied to communication systems based on other generations, such as 5G and later (including NR technology).

[0023] Figure 11 is a diagram showing a wireless network 100 in which various aspects of the present disclosure may be implemented. The wireless network 100 may be an LTE network or some other wireless network (e.g., a 5G or NR network). The wireless network 100 may include a plurality of BSs 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A BS is an entity that communicates with a user equipment (UE) and may also be referred to as a base station, NR BS, Node B, gNB, 5G Node B (NB), access point, transmit receive point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of ​​a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[0024] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription. A femto cell may cover a relatively small geographic area (e.g., a residence) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown in , BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "Node B", "5G NB", and "cell" may be used interchangeably herein.

[0025] In some aspects, the cells may not necessarily be stationary, and the geographic area of ​​the cells may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (e.g., direct physical connections, virtual networks, and / or similar interfaces using any suitable transport networks).

[0026] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and send data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that is capable of relaying transmissions for other UEs. Figure 1 In the example shown in FIG. 1 , a relay station 110 d may communicate with a macro BS 110 a and a UE 120 d to facilitate communication between the BS 110 a and the UE 120 d. A relay station may also be referred to as a relay BS, a relay base station, a relay, or the like.

[0027] The wireless network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0028] A network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly, for example, via a wireless or wired backhaul.

[0029] UE 120 (e.g., 120a, 120b, 120c) can be dispersed throughout the wireless network 100, and each UE can be stationary or mobile. UE can also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE can be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or apparatus, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet, etc.)), an entertainment device (e.g., a music or video device, or a satellite radio unit, etc.), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing device, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0030] Some UEs may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which may communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide a connection to or to a network (e.g., a wide area network such as the Internet or a cellular network) via, for example, a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as customer premises equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120 (such as a processor component, a memory component, etc.).

[0031] Generally, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific RAT and can operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, channel, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0032] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary to communicate with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocol (e.g., which may include vehicle-to-vehicle (V2V) protocol, vehicle-to-infrastructure (V2I) protocol, etc.), mesh network, etc. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0033] As noted above, Figure 1 is provided as an example. Other examples may differ from those described above. Figure 1 Examples described.

[0034] Figure 2 Base station 110 and UE 120 (which may be Figure 11. Block diagram of a design 200 of a base station in a base station and a UE in a UE. Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where in general, T≥1 and R≥1.

[0035] At the base station 110, the transmit processor 220 may receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for the UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signals (PSS) and secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, if applicable, and may provide T output symbol streams to T modulators (MOD) 232a to 232t. Each modulator 232 may process a corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. T downlink signals from modulators 232a to 232t may be transmitted via T antennas 234a to 234t, respectively. According to various aspects described in more detail below, a synchronization signal may be generated using position coding to transmit additional information.

[0036] At UE 120, antennas 252a to 252r may receive downlink signals from base station 110 and / or other base stations, and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. Receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to controller / processor 280. The channel processor may determine reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), channel quality indicator (CQI), etc. In some aspects, one or more components of UE 120 may be included in a housing.

[0037] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.). The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 (if applicable), further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 110. At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide decoded data to a data sink 239 and provide decoded control information to a controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292.

[0038] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other component in the base station 110 may perform one or more techniques associated with transmission configuration indicator (TCI) state activation and deactivation, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component in may perform or direct e.g. Figure 4 The operations of process 400 and / or other processes as described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions for wireless communication. For example, one or more instructions, when executed by one or more processors of base station 110 and / or UE 120, may perform or direct, for example, Figure 4 The scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.

[0039] In some aspects, UE 120 may include: means for receiving an activation state message identifying one or more TCI states or one or more spatial relations, the activation state message being configured to change the one or more TCI states or one or more activation states of the one or more spatial relations in a single bandwidth portion associated with a single component carrier; means for selectively changing the one or more TCI states or one or more activation states of the one or more spatial relations in multiple bandwidth portions associated with multiple component carriers based at least in part on receiving the activation state message; and so on. In some aspects, such means includes combining Figure 2 One or more components of UE 120 are depicted, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, etc.

[0040] As noted above, Figure 2 is provided as an example. Other examples may differ from those described above. Figure 2 Examples described.

[0041] In some communication systems, a UE may have multiple bandwidth parts that the UE may use for communication. For example, the UE may use multiple component carriers to communicate with a BS, and each component carrier may have multiple bandwidth parts defined for the component carrier. Each bandwidth part may have multiple defined TCI states. For example, the UE may have a first component carrier, the first component carrier having a first bandwidth part and a second bandwidth part, and the first bandwidth part may have a defined first TCI state and a second TCI state, and the second bandwidth part may have a defined third TCI state and a fourth TCI state. Similarly, the UE may have a second component carrier, the second component carrier having a third bandwidth part and a fourth bandwidth part, and the third bandwidth part may have a defined first TCI state and a second TCI state, and the fourth bandwidth part may have a defined third TCI state and a fourth TCI state.

[0042] The TCI state defines the parameters for receiving and / or transmitting in the bandwidth part. For example, the UE may use the TCI state to determine the parameter set used by the BS to send the downlink signal, which may enable the UE to receive the downlink signal. Information based at least in part on TCI identification may include quasi-co-location (QCL) information, beam identification information, etc. For example, the UE may be configured with up to 128 TCI states, which may be in an active state, an inactive state, etc. In order to receive a downlink channel (such as a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDCCH)), the UE may select an active TCI state to be applied to the downlink channel so that the UE can receive the channel. However, the use of separate activation and / or deactivation signaling may result in excessive utilization of network resources. For example, the BS may send multiple transmissions on multiple bandwidth parts of multiple component carriers in a single frequency band to activate the same TCI state. When the bandwidth parts are in the same frequency band, the channel properties may be similar, which may cause the TCI state to have the same activation state on multiple different bandwidth parts.

[0043] Some aspects described herein provide TCI state activation and / or deactivation with reduced signaling overhead. Additionally or alternatively, some aspects provide activation and / or deactivation of another type of spatial relationship for bandwidth parts with reduced signaling overhead. For example, a UE may receive an activation state message from a BS, which identifies a change to one or more TCI states or one or more activation states of one or more spatial relationships in a single bandwidth part of a single component carrier. In addition, the UE may receive an activation state indicator (e.g., which may be a field of an activation state message), which may indicate whether the activation state message is applied to multiple bandwidth parts of multiple component carriers in the same frequency band as the identified bandwidth part of the activation state message. In this case, based on the activation state message and the activation state indicator, the UE may determine, for example, to activate or deactivate a specific TCI state in multiple bandwidth parts in which a specific TCI state is defined. In this way, the BS and the UE may reduce the utilization of network resources relative to separately indicating a change in the activation state of a specific TCI state for each bandwidth part in which a specific TCI state is defined.

[0044] Figures 3A-3D is a diagram illustrating an example 300 of TCI state activation and deactivation according to various aspects of the present disclosure. Figures 3A-3D As shown in , example 300 includes BS 110 and UE 120.

[0045] As in Figure 3A 1 and further illustrated by reference numeral 310, UE 120 may receive an activation status message that may include an activation status indicator. For example, BS 110 may provide an activation status message that identifies one or more TCI states, one or more spatial relationships, etc. for a single bandwidth portion and includes a field set to indicate whether the activation status message is to be applied to multiple bandwidth portions. In some aspects, UE 120 may receive the activation status message separate from the activation status indicator. For example, UE 120 may receive the activation status indicator via a separate transmission that occurs before the activation status message, concurrently with the activation status message, after the activation status message, and so on.

[0046] In some aspects, BS 110 may determine a value of the activation status indicator based at least in part on receiving a UE capability indicator from UE 120. For example, UE 120 may provide a UE capability indicator to indicate whether UE 120 is capable of applying an activation status message for a single bandwidth portion to multiple bandwidth portions in the same frequency band. In some aspects, BS 110 may transmit the activation status indicator via a specific type of message. For example, BS 110 may set a flag or bit indicator of a radio resource control (RRC) configuration in a downlink control information (DCI) or a medium access control (MAC) control element (CE) (MAC CE).

[0047] As in Figure 3A In one example, and as further shown by reference numeral 320-A, the MAC CE activation status message may include a set of octets (Oct 1 to Oct N) including information identifying a serving cell (serving cell ID) of the BS 110, a bandwidth part (BWP ID) to which the activation status message applies, and an activation state (T0 to T100) of a TCI state set defined for the bandwidth part. (N-2)*8+7 ). In addition, the activation status message may include a reserved bit (R) that is set to indicate whether the TCI state activation or deactivation for the bandwidth part (e.g., the value of the activation state of the TCI state set) will be applied to one or more other bandwidth parts in the same frequency band.

[0048] Similarly, as in Figure 3B In another example of an activation status message, and as indicated by reference numeral 320-B, the activation status message may include a set of octets including information identifying a serving cell, a bandwidth part, a semi-persistent (SP) channel state information (CSI) reference signal (RS) resource set, an SP CSI interference measurement (IM) resource set, and a TCI state set. In this case, the activation status message includes a set of reserved bits to indicate whether the activation status message applies to a single bandwidth part or multiple bandwidth parts for a change in activation state of, for example, a CSI-RS resource set, a CSI-IM resource set, a TCI state set, etc.

[0049] Similarly, as in Figure 3CIn another example of an activation status message and as shown by reference numeral 320-C, the activation status message may include information for changing the activation status of the spatial relationship. For example, the activation status message may include: a reserved bit (R) for indicating whether the activation status message applies to the spatial relationship in multiple bandwidth parts in the same frequency band as the identified bandwidth part; and information (resource ID) identifying multiple resource set identifiers from which the UE 120 can derive the spatial relationship. Additionally or alternatively, the activation status message includes a field for indicating whether an SP sounding reference signal (SRS) set (SPSRS resource set ID) is activated or deactivated in a single bandwidth part or in multiple bandwidth parts based on the activation status indicator. In one example, the spatial relationship may include a relationship between a reference RS and a target SRS. In some examples, the reference RS may be a SS / PBCH block, a CSI-RS, or an SRS.

[0050] Similarly, as in Figure 3D In another example of an activation status message and as shown by reference numeral 320-D, the activation status message may include reserved bits for an activation status indicator and a field for identifying a single TCI state (TCI state ID) for a single identified bandwidth portion (or multiple bandwidth portions based at least in part on the value of the activation status indicator). If the activation status indicator indicates that a single TCI state activation is to apply to multiple bandwidth portions, the field for the single TCI state may indicate that UE 120 is to activate the identified TCI state for all control resource sets (CORESETs) on all component carriers that have corresponding TCI states that are the same as the TCI state identifier identified in the field. For example, the activation status message may indicate that UE 120 is to activate a TCI state for CORESET 0 in a first component carrier and another TCI state for CORESET 0 in a second component carrier.

[0051] As in Figure 3A As further shown in the figure and by reference numeral 330, based at least in part on receiving the activation state message, the UE 120 may change one or more activation states. For example, when the activation state indicator indicates that the activation state message will apply to a single bandwidth portion, the UE 120 may change one or more TCI states in the single bandwidth portion or one or more activation states of one or more spatial relationships. Additionally or alternatively, when the activation state indicator indicates that the activation state will apply to multiple bandwidth portions, the UE 120 may change one or more TCI states in multiple bandwidth portions or one or more activation states of one or more spatial relationships. For example, the UE 120 may activate TCI states having a particular TCI indicator in multiple bandwidth portions. Additionally or alternatively, the UE 120 may deactivate TCI states in multiple bandwidth portions.

[0052] In some aspects, UE 120 may receive transmissions from BS 110 based at least in part on activating or deactivating TCI states, changing spatial relations, etc. For example, UE 120 may receive PDSCH, PDCCH, etc. Additionally or alternatively, UE 120 may receive CSI RS, CSI IM, etc. Additionally or alternatively, UE 120 may send SRS, etc.

[0053] As noted above, Figures 3A-3D is provided as an example. Other examples may differ from those described above. Figures 3A-3D Examples described.

[0054] Figure 4 4 is a diagram illustrating an example process 400 performed, for example, by a UE in accordance with various aspects of the present disclosure. Example process 400 is an example of a UE (eg, UE 120, etc.) performing operations associated with TCI state activation and deactivation.

[0055] like Figure 4 As shown in , in some aspects, process 400 may include: receiving an activation state message identifying one or more TCI states or one or more spatial relationships, the activation state message being configured to change one or more activation states of one or more TCI states or one or more spatial relationships in a single bandwidth portion associated with a single component carrier (box 410). For example, a UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.) may receive an activation state message identifying one or more TCI states or one or more spatial relationships. In some aspects, the activation state message is configured to change one or more activation states of one or more TCI states or one or more spatial relationships in a single bandwidth portion associated with a single component carrier, as described above in conjunction with Figures 3A-3D Descriptive.

[0056] In a first aspect, receiving the activation status message includes: sending a UE capability indicator to indicate that the UE is capable of applying the activation status message to a plurality of bandwidth parts; and receiving the activation status message based at least in part on sending the UE capability indicator.

[0057] In a second aspect, either alone or in combination with the first aspect, the plurality of bandwidth parts and the plurality of component carriers are in the same frequency band.

[0058] In a third aspect, alone or in combination with one or more of the first to second aspects, the activation status message is a medium access control control element.

[0059] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the activation status indicator is a bit indicator of the radio resource configuration message control message.

[0060] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the activation status indicator is a bit indicator of downlink control information of a downlink shared channel medium access control control element.

[0061] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, one or more TCI states are associated with a semi-persistent channel state information reference signal resource or a channel state information interference measurement resource.

[0062] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the one or more spatial relationships are associated with a semi-persistent sounding reference signal resource.

[0063] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, one or more TCI states are associated with a physical downlink control channel resource.

[0064] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, one or more TCI states are associated with a physical downlink shared channel resource.

[0065] like Figure 4 As further shown in FIG. 4 , in some aspects, process 400 may include: selectively changing one or more TCI states or one or more activation states of one or more spatial relationships in a plurality of bandwidth parts associated with a plurality of component carriers based at least in part on receiving the activation state message (block 420). For example, a UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.) may selectively change one or more TCI states or one or more activation states of one or more spatial relationships in a plurality of bandwidth parts associated with a plurality of component carriers based at least in part on receiving the activation state message, as described above in conjunction with FIG. Figures 3A-3D Descriptive.

[0066] In the tenth aspect, alone or in combination with one or more aspects of the first to ninth aspects, the activation status message is an activation message, and selectively changing one or more activation states of one or more TCI states or one or more spatial relationships includes: activating one or more TCI states or one or more spatial relationships.

[0067] In the eleventh aspect, alone or in combination with one or more aspects from the first to the tenth aspect, the activation status message is a deactivation message, and selectively changing one or more activation states of one or more TCI states includes: deactivating one or more TCI states or one or more spatial relationships.

[0068] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, selectively changing one or more activation states comprises: changing one or more spatial relationships among the plurality of bandwidth portions.

[0069] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, process 400 includes: receiving an activation status indicator indicating that an activation status message will be applied to more than one bandwidth portion, and selectively changing one or more TCI states or one or more activation states of one or more spatial relationships in multiple bandwidth portions associated with multiple component carriers includes: changing one or more TCI states or one or more activation states of one or more spatial relationships in multiple bandwidth portions associated with multiple component carriers based at least in part on the activation status indicator.

[0070] In the fourteenth aspect, either alone or in combination with one or more of aspects one to thirteen, selectively changing one or more activation states may include selectively changing one or more activation states based at least in part on an activation state indicator indicating whether an activation state message will be applied to multiple bandwidth portions associated with multiple component carriers.

[0071] Process 400 may include additional aspects, such as any single aspect or any combination of the aspects described above and / or in conjunction with one or more other processes described elsewhere herein.

[0072] although Figure 4 Example blocks of process 400 are shown, but in some aspects, process 400 may include Figure 4 The blocks depicted in the process 400 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 400. Additionally or alternatively, two or more blocks in the blocks of process 400 may be executed in parallel.

[0073] Figure 5 500 is a conceptual data flow diagram of an example 500 illustrating the data flow between different modules / units / components in an example apparatus 502. The apparatus 502 may include, for example, a UE (e.g., UE 120). In some aspects, the apparatus 502 includes a receiving module 504, an altering module 506, and a sending module 508.

[0074] In some aspects, the receiving module 504 may receive a transmission sent to the apparatus 502. For example, the receiving module 504 may receive a transmission including an activation status message, an activation status indicator, etc. In some aspects, the receiving module 504 may receive a MAC CE including an activation status message and an activation status indicator, such as with respect to Figures 3A-3D Descriptive.

[0075] In some aspects, the changing module 506 can change one or more TCI states or one or more activation states of one or more spatial relationships. For example, based on the activation state indicator indicating that the activation state message is to be applied to the plurality of bandwidth portions, the changing module 506 can activate or deactivate the TCI states in the plurality of bandwidth portions to enable the apparatus 502 to receive transmissions from, for example, a BS (e.g., BS 110), such as with respect to Figures 3A-3D Descriptive.

[0076] In some aspects, the sending module 508 can send information to, for example, a BS. For example, the sending module 508 can provide a UE capability indicator indicating that the device 502 is capable of applying a single activation state message for a single bandwidth portion to multiple bandwidth portions, such as regarding Figures 3A-3D Descriptive.

[0077] In some aspects, the apparatus 502 may include performing the above Figure 4 Each block in the flowchart of the algorithm has an additional module. The above can be performed by a module Figure 4 Each block in the flowchart of , and the device 502 may include one or more modules in those modules. A module may be one or more hardware components specifically configured to execute the process / algorithm, implemented by a processor configured to execute the process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0078] exist Figure 5 The number and arrangement of modules shown in the figure are provided as examples. Figure 5 There may be additional modules, fewer modules, different modules, or modules arranged in a different manner than those modules shown in FIG. Figure 5 Two or more modules shown in may be implemented in a single module, or in Figure 5 The single module shown in can be implemented as multiple distributed modules. Additionally or alternatively, Figure 5 A set of modules (e.g., one or more modules) shown in can perform the operations described in Figure 5 Another set of modules shown in the figure performs one or more functions.

[0079] Figure 6is a diagram showing an apparatus 502' (eg, as described above in conjunction with the processing system 602) using Figure 5 6 is a diagram of an example hardware implementation 600 of an apparatus 502' depicted in the drawings. The apparatus 502' may include, for example, a UE (eg, UE 120).

[0080] The processing system 602 may be implemented with a bus architecture, generally represented by bus 604. Bus 604 may include any number of interconnecting buses and bridges, depending on the specific application of the processing system 602 and the overall design constraints. Bus 604 connects various circuits together, including one or more processors and / or hardware modules represented by processor 606, modules 504, 506, and / or 508, and computer-readable media / memory 608. Bus 604 may also connect various other circuits such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described again.

[0081] The processing system 602 may be coupled to a transceiver 610. The transceiver 610 is coupled to one or more antennas 612. The transceiver 610 provides a means for communicating with various other devices over a transmission medium. The transceiver 610 receives signals from the one or more antennas 612, extracts information from the received signals, and provides the extracted information to the processing system 602. In addition, the transceiver 610 receives information from the processing system 602 and generates signals to be applied to the one or more antennas 612 based at least in part on the received information.

[0082] The processing system 602 includes a processor 606 coupled to a computer-readable medium / memory 608. The processor 606 is responsible for general processing, which includes executing software stored on the computer-readable medium / memory 608. The software, when executed by the processor 606, causes the processing system 602 to perform the various functions described herein for any particular device. The computer-readable medium / memory 608 may also be used to store data manipulated by the processor 606 when executing the software. The processing system also includes at least one of the modules 504, 506, and / or 508. The module may be a software module that resides / stored in the computer-readable medium / memory 608 and runs in the processor 606, one or more hardware modules coupled to the processor 606, or some combination thereof.

[0083] In some aspects, an apparatus 502 for wireless communication includes: means for receiving an activation state message identifying one or more TCI states or one or more spatial relationships, the activation state message being configured to change one or more TCI states or one or more activation states of one or more spatial relationships in a single bandwidth portion associated with a single component carrier; means for selectively changing one or more TCI states or one or more activation states of one or more spatial relationships in multiple bandwidth portions associated with multiple component carriers based at least in part on receiving the activation state message. The above means may be one or more of the above modules of the apparatus 502 and / or a processing system 602 of the apparatus 502' configured to perform the functions recited by the above means.

[0084] As noted above, Figure 6 is provided as an example. Other examples may differ from those described above. Figure 6 Examples described.

[0085] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of the various aspects.

[0086] As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, and / or a combination of hardware and software. As used herein, a processor is implemented using hardware, firmware, and / or a combination of hardware and software.

[0087] As used herein, satisfying a threshold may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0088] It will be apparent that the systems and / or methods described herein may be implemented with various forms of hardware, firmware, and / or combinations of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not limiting in any respect. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software code, it being understood that software and hardware may be designed to implement the systems and / or methods based, at least in part, on the description herein.

[0089] Even if the specific combination of features is recorded in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner that is not specifically recorded in the claims and / or specifically disclosed in the specification. Although each dependent claim listed below can only directly depend on one claim, the disclosure of various aspects includes the combination of each dependent claim with each other claim in the claim set. The phrase "at least one of" referring to the list of items refers to any combination of those items, including a single member. For example, "at least one of a, b or c" is intended to cover any combination of a, b, c, ab, ac, bc and abc, and with multiples of the same element (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other ordering of a, b and c).

[0090] None of the elements, actions or instructions used herein should be interpreted as key or necessary, unless clearly described as such. In addition, as used herein, the articles "a" and "an" are intended to include one or more projects, and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more projects (e.g., related projects, unrelated projects, combinations of related projects and unrelated projects, etc.), and can be used interchangeably with "one or more". In the case of only expecting one project, the phrase "only one" or similar language is used. In addition, as used herein, the terms "has", "have", "having" and / or similar terms are intended to be open terms. In addition, unless otherwise clearly stated, the phrase "based on" is intended to mean "based at least in part on".

Claims

1. A method of wireless communication performed by a user equipment UE, comprising: receiving an activation state message identifying one or more transmission configuration indicator (TCI) states or one or more spatial relations, the activation state message being configured to change one or more activation states of the one or more TCI states or the one or more spatial relations in a single bandwidth portion associated with a single component carrier; as well as The one or more TCI states or the one or more activation states of the one or more spatial relationships in the multiple bandwidth parts are changed based at least in part on an activation state indicator indicating whether the activation state message is to be applied to more than one bandwidth part among a plurality of bandwidth parts associated with the multiple component carriers.

2. The method according to claim 1, wherein: The activation status message is an activation message, and Wherein, changing the one or more TCI states or the one or more activation states of the one or more spatial relationships comprises: Activate the one or more TCI states or the one or more spatial relationships.

3. The method according to claim 1, wherein: The activation status message is a deactivation message, and Wherein, changing the one or more activation states of the one or more TCI states comprises: Deactivate the one or more TCI states or the one or more spatial relationships.

4. The method according to claim 1, wherein: Changing the one or more activation states includes: The one or more spatial relationships among the plurality of bandwidth portions are altered.

5. The method according to claim 1, further comprising: sending a UE capability indicator to indicate that the UE is capable of applying the activation state message to the plurality of bandwidth parts; and Wherein, receiving the activation status message includes: The activation status message is received based at least in part on sending the UE capability indicator.

6. The method according to claim 1, wherein: The plurality of bandwidth parts and the plurality of component carriers are in a same frequency band.

7. The method according to claim 1, wherein: The activation status message is a medium access control control element.

8. The method according to claim 1, further comprising: The activation status indicator is received indicating that the activation status message is to be applied to more than one of the plurality of bandwidth parts.

9. The method according to claim 1, wherein: The activation status indicator is a bit indicator of a radio resource configuration message control message.

10. The method according to claim 1, wherein: The activation status indicator is a bit indicator of downlink control information of a downlink shared channel medium access control element.

11. The method according to claim 1, wherein: The one or more TCI states are associated with a semi-persistent channel state information reference signal resource or a channel state information interference measurement resource.

12. The method according to claim 1, wherein: The one or more spatial relationships are associated with a semi-persistent sounding reference signal resource.

13. The method according to claim 1, wherein: The one or more TCI states are associated with a physical downlink control channel resource.

14. The method according to claim 1, wherein: The one or more TCI states are associated with a physical downlink shared channel resource.

15. A user equipment UE for wireless communication, comprising: Memory; as well as one or more processors operatively coupled to the memory, the one or more processors configured to: receiving an activation state message identifying one or more transmission configuration indicator (TCI) states or one or more spatial relations, the activation state message being configured to change one or more activation states of the one or more TCI states or the one or more spatial relations in a single bandwidth portion associated with a single component carrier; as well as The one or more TCI states or the one or more activation states of the one or more spatial relationships in the multiple bandwidth parts are changed based at least in part on an activation state indicator indicating whether the activation state message is to be applied to more than one bandwidth part among a plurality of bandwidth parts associated with the multiple component carriers.

16. The UE according to claim 15, wherein: The activation status message is an activation message, and Wherein, in order to change the one or more TCI states or the one or more activation states of the one or more spatial relationships, the one or more processors are configured to: Activate the one or more TCI states or the one or more spatial relationships.

17. The UE according to claim 15, wherein: The activation status message is a deactivation message, and Wherein, in order to change the one or more activation states of the one or more TCI states, the one or more processors are configured to: Deactivate the one or more TCI states or the one or more spatial relationships.

18. The UE according to claim 15, wherein: To change the one or more activation states, the one or more processors are configured to: The one or more spatial relationships among the plurality of bandwidth portions are altered.

19. The UE according to claim 15, wherein: The one or more processors are further configured to: sending a UE capability indicator to indicate that the UE is capable of applying the activation state message to the plurality of bandwidth parts; and Wherein, in order to receive the activation status message, the one or more processors are configured to: The activation status message is received based at least in part on sending the UE capability indicator.

20. The UE according to claim 15, wherein: The plurality of bandwidth parts and the plurality of component carriers are in a same frequency band.

21. The UE according to claim 15, wherein: The activation status message is a medium access control control element.

22. The UE according to claim 15, wherein: The one or more processors are further configured to: The activation status indicator is received indicating that the activation status message is to be applied to more than one of the plurality of bandwidth parts.

23. The UE according to claim 15, wherein: The activation status indicator is a bit indicator of a radio resource configuration message control message.

24. The UE according to claim 15, wherein: The activation status indicator is a bit indicator of downlink control information of a downlink shared channel medium access control element.

25. The UE according to claim 15, wherein: The one or more TCI states are associated with a semi-persistent channel state information reference signal resource or a channel state information interference measurement resource.

26. The UE according to claim 15, wherein: The one or more spatial relationships are associated with a semi-persistent sounding reference signal resource.

27. A non-transitory computer readable medium storing one or more instructions for wireless communication, the one or more instructions comprising: One or more instructions that, when executed by one or more processors of a user equipment UE, cause the one or more processors to perform the following operations: receiving an activation state message identifying one or more transmission configuration indicator (TCI) states or one or more spatial relations, the activation state message being configured to change one or more activation states of the one or more TCI states or the one or more spatial relations in a single bandwidth portion associated with a single component carrier; as well as The one or more TCI states or the one or more activation states of the one or more spatial relationships in the multiple bandwidth parts are changed based at least in part on an activation state indicator indicating whether the activation state message is to be applied to more than one bandwidth part among a plurality of bandwidth parts associated with the multiple component carriers.

28. The non-transitory computer readable medium of claim 27, wherein: The one or more instructions further cause the UE to perform the following operations: The activation status indicator is received indicating that the activation status message is to be applied to more than one of the plurality of bandwidth parts.

29. An apparatus for wireless communication, comprising: means for receiving an activation state message identifying one or more transmission configuration indicator (TCI) states or one or more spatial relations, the activation state message being configured to change one or more activation states of the one or more TCI states or the one or more spatial relations in a single bandwidth portion associated with a single component carrier; as well as A unit for changing the one or more TCI states or the one or more activation states of the one or more spatial relationships in the multiple bandwidth parts associated with the multiple component carriers based at least in part on an activation state indicator indicating whether the activation state message is to be applied to more than one bandwidth part in the multiple bandwidth parts associated with the multiple component carriers.

30. The apparatus of claim 29, further comprising: Means for receiving the activation status indicator indicating that the activation status message is to be applied to more than one of the plurality of bandwidth parts.

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