Beam and path loss reference signal configuration activation based on downlink control information

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user device may receive downlink control information (DCI) including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; activate the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration according to the DCI; and receive or transmit communications on a beam according to the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration. The present disclosure provides numerous other aspects.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 947,982, entitled “Beam and Path Loss Reference Signal Configuration Activation Based on Downlink Control Information,” filed on December 13, 2019, and U.S. Non-Provisional Patent Application No. 16 / 949,650, entitled “Beam and Path Loss Reference Signal Configuration Activation Based on Downlink Control Information,” filed on November 9, 2020, which are expressly incorporated herein by reference. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for beam and path loss reference signal configuration activation based on downlink control information. Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of 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 promulgated by the Third Generation Partnership Project (3GPP).

[0005] A wireless communication network may include multiple base stations (BSs) that can support communication for multiple user equipment (UEs). User equipment (UEs) can communicate with a base station (BS) via a downlink and an uplink. The downlink (or forward link) refers to the communication link from the BS to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the 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 aforementioned multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables different user devices to communicate at the city, national, regional, and even global levels. New Radio (NR), also known as 5G, is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (3GPP). NR aims to better support mobile broadband internet access by improving spectral efficiency, reducing costs, improving services, leveraging new spectrum, and better integrating with other open standards. These open standards use orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), as well as support for beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. However, as the demand for mobile broadband access continues to grow, further improvements to LTE and NR technologies are needed. Preferably, these improvements should be applicable to other multiple access technologies and the telecommunications standards that adopt them. Summary of the Invention

[0007] In some aspects, a wireless communication method performed by a UE may include: receiving downlink control information (DCI), the downlink control information including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; activating the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration according to the DCI; and receiving or sending communications on the beam according to the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration.

[0008] In some aspects, a wireless communication method performed by a base station may include: sending a DCI to a UE, wherein the DCI includes one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; and communicating with the UE based on one or more of the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration.

[0009] In some aspects, a UE for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to receive a DCI including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; activate the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration according to the DCI; and receive or transmit communications on a beam according to the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration.

[0010] In some aspects, a base station for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to send a DCI to a UE, the DCI including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; and communicate with the UE based on one or more of the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration.

[0011] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of a UE, the one or more instructions may cause the one or more processors to: receive DCI including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; activate the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration according to the DCI; and receive or transmit communications on a beam according to the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration.

[0012] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of a base station, the one or more instructions may cause the one or more processors to: send DCI to a UE, the DCI including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; and communicate with the UE based on one or more of the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration.

[0013] In some aspects, an apparatus for wireless communication may include a device for receiving DCI, the DCI including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; a device for activating the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration based on the DCI; and a device for receiving or sending communications on a beam based on the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration.

[0014] In some aspects, an apparatus for wireless communication may include: a device for sending DCI to a UE, the DCI including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; and a device for communicating with the UE based on one or more of the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration.

[0015] In some aspects, a wireless communication method performed by a UE may include: receiving a DCI, wherein the DCI includes one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; and activating the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration based on the DCI.

[0016] In some aspects, a UE for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to receive a DCI including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; and activate the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration according to the DCI.

[0017] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of a UE, the one or more instructions may cause the one or more processors to: receive a DCI including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; and activate the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration according to the DCI.

[0018] In some aspects, an apparatus for wireless communication may include a device for receiving DCI, wherein the DCI includes one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; and a device for activating the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration based on the DCI.

[0019] The aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems substantially as described herein with reference to and illustrated by the figures and description.

[0020] The features and technical advantages of the examples according to the present disclosure have been outlined in a rather broad manner so that the detailed description that follows may be better understood. Additional features and advantages will be described below. The concepts and specific examples disclosed may be readily used as a basis for modifying or designing other structures for achieving the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The features of the concepts disclosed herein, both their organization and method of operation, and the associated advantages will be better understood from the following description when considered in conjunction with the accompanying drawings. Each of the figures is provided for the purpose of illustration and description and not as a definition of limitations to the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to enable a detailed understanding of the above-described features of the present disclosure, reference may be made to a more particular description of some aspects briefly summarized above, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of the present disclosure and are therefore not to be considered limiting of its scope, as the description may admit to other equally effective aspects. The same reference numerals in different drawings may represent the same or similar elements.

[0022] Figure 1 is a block diagram conceptually illustrating an example of a wireless communication network in accordance with various aspects of the present disclosure.

[0023] Figure 2is a block diagram conceptually illustrating an example of a base station communicating with a UE in a wireless communication network according to various aspects of the present disclosure.

[0024] Figure 3-Figure 8 is a diagram illustrating an example of beam and path loss reference signal configuration activation based on downlink control information according to various aspects of the present disclosure.

[0025] Figure 9 is a diagram illustrating an example process performed, for example, by a user device, according to various aspects of the present disclosure.

[0026] Figure 10 is a diagram illustrating example processes performed, for example, by a base station, according to various aspects of the present disclosure. DETAILED DESCRIPTION

[0027] The various aspects of the present disclosure will be described more fully below with reference to the accompanying drawings. However, the present disclosure can be implemented in many different forms and should not be interpreted as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided to make the present disclosure thorough and complete and to fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art should understand that the scope of the present disclosure is intended to cover any aspect disclosed herein, whether implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein can be used to implement equipment or practice methods. In addition, the scope of the present disclosure is intended to cover such equipment or methods, which use other structures, functions, or structures and functions in addition to or different from the various aspects of the present disclosure set forth herein to practice. It should be understood that any aspect of the disclosure disclosed herein can be embodied by one or more elements of the claims.

[0028] Several aspects of telecommunications systems will now be described with reference to various equipment and techniques. These equipment 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.

[0029] It should be noted that although terms generally associated with 5G or NR radio access technology (RAT) may be used herein to describe various aspects, various aspects of the present disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or RATs beyond 5G (e.g., 6G).

[0030] Figure 1is a diagram illustrating a wireless network 100 in which various aspects of the present disclosure may be practiced. The wireless network 100 may be an LTE network or some other wireless network, such as a 5G or NR network. The wireless network 100 may include multiple 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 the coverage area of ​​a BS and / or a BS subsystem serving that coverage area, depending on the context in which the term is used.

[0031] A BS may provide communication coverage for macro cells, pico cells, femto cells, and / or other types of cells. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access to UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access to UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access to UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). The BS of a macro cell may be referred to as a macro BS. The BS of a pico cell may be referred to as a pico BS. The BS of a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown, 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.

[0032] In some aspects, the cells are not necessarily stationary, and the geographic area of ​​the cells can move depending on the location of the mobile BS. In some aspects, the BSs can be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 using any suitable transport network, through various types of backhaul interfaces, such as direct physical connections, virtual networks, etc.

[0033] 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 can relay transmissions for other UEs. Figure 1 In the example shown, a relay station 110d may communicate with a macro BS 110a and a UE 120d to facilitate communication between the BS 110a and the UE 120d. A relay station may also be referred to as a relay BS, a relay base station, a relay, or the like.

[0034] The wireless network 100 may be a heterogeneous network that includes different types of BSs, such as 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 impacts 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).

[0035] The 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, for example, directly or indirectly via a wireless or wired backhaul.

[0036] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be fixed or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. A UE may be a cellular phone (e.g., a smartphone), 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 computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biosensor / device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0037] Some UEs may be considered 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, other devices (e.g., remote devices), or some other entity. For example, a wireless node may provide connectivity to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered customer premises equipment (CPE). UE 120 may be included in a housing that houses components of UE 120 (such as a processor component, a memory component, etc.).

[0038] Generally, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific radio access technology (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.

[0039] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more side channels (e.g., without using base station 110 as an intermediary for communicating with each other). For example, the UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In such cases, the UEs 120 may perform scheduling operations, resource selection operations, and / or other operations performed by the base station 110 as described elsewhere herein.

[0040] Wireless communication devices such as UEs, base stations, and transmit receive points (TRPs) can communicate with each other using beams. A beam can be defined using a transmission configuration indicator (TCI) state. The TCI state of a beam can indicate the source reference signal and quasi-colocation (QCL) type used for the beam. The QCL type can correspond to one or more QCL relationships, which indicate how the source reference signal is quasi-colocated (QCLed) with the channel on the beam. Two antenna ports are said to be quasi-colocated if the properties of the channel transmitting the symbols on one antenna port (e.g., the channel on the beam) can be inferred from the channel transmitting the symbols on the other antenna port (e.g., the source reference signal). Examples of QCL relationships that can be bundled in a QCL type include Doppler shift, Doppler spread, average delay, delay spread, and spatial reception parameters. Therefore, the characteristics of the beam can be derived from the characteristics of the source reference signal. Some techniques and equipment described herein provide radio resource control (RRC)-based configuration of TCI states, and activation of one or more TCI states using downlink control information, as described elsewhere herein.

[0041] Devices in wireless network 100 can communicate using an electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc. based on frequency or wavelength. For example, devices in wireless network 100 can communicate using an operating band having a first frequency range (FR1) from 410 MHz to 7.125 GHz, and / or using an operating band having a second frequency range (FR2) from 24.25 GHz to 52.6 GHz. Frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as the "sub-6 GHz" band. Similarly, FR2 is often referred to as the "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz), which is designated as the "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, unless otherwise specified, it should be understood that the terms "sub-6 GHz," etc., when used herein, can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise stated, it should be understood that the term "millimeter wave," etc., if used herein, can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0042] As mentioned above, Figure 1 are provided as examples. Other examples may differ from those described in Figure 1 described.

[0043] Figure 2 A block diagram shows a design 200 of a base station 110 and a UE 120, which may be Figure 1 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.

[0044] At the base station 110, a transmit processor 220 may receive data for one or more UEs from a 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 each 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) 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)). If applicable, the transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​the data symbols, control symbols, overhead symbols, and / or reference symbols, and can provide T output symbol streams to T modulators (MOD) 232a through 232t. Each modulator 232 can process its own output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a through 232t can be transmitted via T antennas 234a through 234t, respectively. According to various aspects described in more detail below, position coding can be used to generate synchronization signals to convey additional information.

[0045] At UE 120, antennas 252a through 252r may receive downlink signals from base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a through 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. A MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a 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.

[0046] On the uplink, at 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, if applicable, may be received by antennas 234, processed by demodulators 232, detected by MIMO detector 236, and further processed by a receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to the 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.

[0047] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other component of the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or the like may perform one or more techniques associated with downlink control information (DCI) based beam and path loss reference signal configuration activation, as described in more detail elsewhere herein. Figure 2 Any other component of the may perform or direct e.g. Figure 9 The process of 900 Figure 10 The operations of process 1000 and / or other processes described herein may be performed by the memories 242 and 282, respectively, which may store data and program codes for the base station 110 and the UE 120. In some aspects, the memory 242 and / or the memory 282 may include a non-transitory computer-readable medium storing one or more instructions for wireless communication. For example, when executed by one or more processors of the base station 110 and / or the UE 120, the one or more instructions may perform or direct, for example, Figure 9 The process of 900 Figure 10 The scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.

[0048] In some aspects, UE 120 may include means for receiving DCI including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; means for activating the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration based on the DCI; means for receiving or transmitting communications on a beam based on the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration; and the like. In some aspects, such means may include in conjunction with 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, and the like.

[0049] In some aspects, the base station 110 may include means for sending DCI to the UE, the DCI including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration; means for communicating with the UE based on one or more of the uplink beam configuration, the downlink beam configuration, or the path loss reference signal configuration; and the like. In some aspects, these means may include in conjunction with Figure 2One or more components of base station 110 are depicted, such as antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, and the like.

[0050] As mentioned above, Figure 2 are provided as examples. Other examples may differ from those described in Figure 2 described.

[0051] Wireless communication devices such as UEs, base stations, and transmit / receive points (TRPs) can communicate with each other using beams. Beams can be defined using TCI states. The TCI state of a beam can indicate the source reference signal and QCL type used for the beam. The QCL type can correspond to one or more QCL relationships, which indicate how the source reference signal is quasi-co-located with the channel on the beam. Two antenna ports are said to be quasi-co-located if the properties of the channel transmitting the symbols on one antenna port (e.g., the channel on the beam) can be inferred from the channel transmitting the symbols on the other antenna port (e.g., the source reference signal). Examples of QCL relationships that can be bundled in the QCL type include Doppler shift, Doppler spread, average delay, delay spread, and spatial reception parameters. Therefore, the characteristics of the beam can be derived from the characteristics of the source reference signal. As described elsewhere in this document, a base station can configure multiple TCI states. A subset of these configured TCI states can be activated (such as via media access control (MAC) signaling or DCI) and can then be used to perform transmission or reception. A TCI state can be considered activated if it can be used to select whether to perform transmission or reception. For example, a DCI providing an uplink or downlink grant may select any activated TCI state (activated via MAC or DCI signaling) for use in sending or receiving the corresponding grant by the UE.

[0052] The UE and the base station (or any transmitter device and any receiver device) can perform beam management to establish and / or improve the beam used for communication between the UE and the base station. Beam management can enable intra-cell mobility (e.g., when the physical direction of the UE changes, when the cluster or blocking object in the channel changes, etc.) and inter-cell mobility (e.g., when the UE is handed over from one base station to another), as well as other processes.

[0053] A UE may communicate based at least in part on a beam configuration, such as an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration. A beam configuration may indicate a DL TCI state or UL spatial relationship that may be used for communication. The beam configuration used by the UE for communication may be selected from a set of active beam configurations associated with corresponding active TCI states. For example, a UE may be configured with multiple beam configurations, and a base station may indicate a subset of the multiple beam configurations as active beam configurations that may be used for beams (e.g., transmit beams or receive beams) for the UE. The subset of multiple beam configurations indicating beams that may potentially be used for the UE may be referred to as a subset of active beam configurations, and the subset may be made available for selection for transmission or reception. If a higher layer signaling technique (e.g., MAC signaling, such as a MAC control element (MAC-CE)) is used to activate the beam configuration, the UE may experience significant latency in processing the higher layer signaling and applying the activation command. For example, MAC signaling may typically be associated with an activation latency of approximately 3 ms for the UE to apply a beam or path loss reference signal activation command. This delay may negatively impact the operation of the UE, especially in situations where the active beam configuration changes frequently (e.g., frequent mobility operations such as inter-cell mobility operations or intra-cell mobility operations such as operations in the higher frequency range of frequency range 2).

[0054] Some of the techniques and equipment described herein provide physical layer signaling for activating an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration. For example, a base station may provide one or more parameters related to an activated beam configuration (such as an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration) to a UE using DCI. The UE may activate a beam configuration. If a beam configuration is selected for communication, the UE may perform communication using the beam associated with the beam configuration. For example, the UE may send communication using the activated uplink beam configuration, may receive communication using the activated downlink beam configuration, or may receive a path loss reference signal using the activated path loss reference signal configuration.

[0055] In this way, the base station can use physical layer signaling to activate the beam configuration of the UE, which can reduce latency and overhead relative to higher layer signaling, thereby saving computing resources. This may be particularly beneficial for UEs associated with frequent beam configuration changes. In addition, beam configuration activation using physical layer signaling may be particularly beneficial for beam management to support intra-cell mobility operations and inter-cell mobility operations centered on layer 1 / layer 2, such as reducing latency and overhead associated with such mobility operations, and facilitating beam management associated with higher frequency ranges (such as frequency range 2) (although the techniques and equipment described herein are also applicable to lower ranges, such as frequency range 1).

[0056] Figure 3-Figure 8 1 and 2 are diagrams illustrating examples 300, 400, 500, 600, 700, and 800 of DCI-based beam and path loss reference signal configuration activation according to various aspects of the present disclosure. As shown, examples 300, 400, 500, 600, 700, and 800 include UE 120 and BS 110.

[0057] Figure 3 The illustrated example 300 is an example of activation of a physical downlink control channel (PDCCH) TCI state based on DCI.

[0058] like Figure 3 As shown, by reference numeral 310, BS 110 may provide configuration information to UE 120. As further shown, the configuration information may include configuration information for multiple PDCCH TCI states. In some aspects, the PDCCH TCI state may be referred to as a downlink beam configuration. The PDCCH TCI state may include a TCI state for generating a receive beam to receive the PDCCH.

[0059] As shown at 320, BS 110 may transmit a DCI to UE 120. As further shown, the DCI may indicate that the PDCCH TCI state is to be activated. In other words, the DCI may indicate that the downlink beam configuration is to be activated. For example, the DCI may indicate that the downlink beam configuration is available for transmission or reception. In some aspects, the DCI may include one or more parameters related to the downlink beam configuration, which may identify the downlink beam configuration, etc.

[0060] In some aspects, the DCI may schedule uplink or downlink signals, which may save computational resources that would otherwise be used to provide scheduling information separately from the DCI used to activate the downlink beam configuration. In some aspects, the DCI may not schedule uplink or downlink signals, which may increase the flexibility of the DCI's timing and reduce the overhead associated with the DCI.

[0061] In some aspects, the content of the DCI may include one or more parameters associated with the downlink beam configuration, such as a serving cell identifier of the downlink beam configuration, a control resource set identifier associated with the downlink beam configuration, a TCI state identifier associated with the downlink beam configuration, and the like. In some aspects, the DCI may identify a QCL source reference signal for the downlink beam configuration. For example, the DCI may identify a QCL source reference signal according to each QCL type of the TCI state. The QCL source reference signal may include a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), a sounding reference signal (SRS), and the like.

[0062] In some aspects, the DCI format of the DCI may be based at least in part on an existing DCI format, such as DCI format 1_1 or 1_2 for PDSCH scheduling. In such a case, the DCI may indicate which TCI state in the DCI is applied to the control resource set identifier (e.g., using one or more reserved bits, a configurable field of the DCI, etc.). In some aspects, the DCI format may not be based at least in part on an existing format. For example, the DCI format may be a new DCI format (e.g., not based on DCI formats 0_0, 0_1, 1_0, 1_1, 1_1, 2_0, 2_1, 2_2, or 2_3).

[0063] As shown by reference numeral 330, the UE 120 may activate a TCI state (e.g., a downlink beam configuration) associated with the PDCCH. For example, the UE may enable the TCI state indicated by the PDCCH to be used for transmission or reception. In some aspects, the UE may use the activated TCI state for downlink communications (e.g., based at least in part on receiving a DCI indicating that the activated TCI state is to be used for downlink communications). Figure 3 (not shown)). For example, UE 120 may apply a specific spatial filter to a receive antenna or antenna port group, may use a QCL source reference signal of a downlink beam configuration to determine one or more QCL parameters, may monitor the QCL source reference signal of a downlink beam configuration, and so on. By using DCI to activate the downlink beam configuration, UE 120 and BS 110 may reduce latency and overhead, thereby saving computing resources.

[0064] As shown in reference numeral 340, BS 110 may transmit a PDCCH based on the TCI state of the PDCCH, and UE 120 may receive the PDCCH. For example, as described above, UE 120 may use the TCI state of the PDCCH to determine the QCL properties of a receive beam and generate a receive beam to receive the PDCCH. In some aspects, when using downlink beam configuration, the UE may use the same receive beam for downlink communication as the receive beam used to receive the QCL source reference signal, and / or the base station may use the same transmit beam for downlink communication as the transmit beam used to transmit the QCL source reference signal. In some aspects, UE 120 may use one or more TCI states activated as described in conjunction with example 300 to perform mobility operations, such as intra-cell mobility operations or inter-cell mobility operations.

[0065] Figure 4 The example 400 shown in FIG. 4 is an example of activation of a physical downlink shared channel (PDSCH) TCI state based on DCI.

[0066] like Figure 4As shown, by reference numeral 410, BS 110 may provide configuration information to UE 120. As further shown, the configuration information may include configuration information for multiple PDSCH TCI states. In some aspects, the PDSCH TCI state may be referred to as a downlink beam configuration or a downlink TCI state. The PDSCH TCI state may include a TCI state for generating a receive beam for receiving the PDSCH.

[0067] As shown by reference numeral 420, BS 110 may send a DCI to UE 120. As further shown, the DCI may indicate that a PDSCH TCI state is to be activated. In other words, the DCI may indicate that a downlink beam configuration is to be activated. For example, the DCI may indicate that a PDSCH TCI state is available for reception. In some aspects, the DCI may include one or more parameters related to the downlink beam configuration, which may identify the downlink beam configuration, etc.

[0068] In some aspects, a DCI may schedule uplink or downlink signals, which may save computational resources that would otherwise be used to provide scheduling information separately from the DCI used to activate the downlink beam configuration. In some aspects, a DCI may not schedule uplink or downlink communications, which may increase the flexibility of the DCI's timing and reduce the overhead associated with the DCI.

[0069] In some aspects, the DCI may include one or more parameters associated with the downlink beam configuration, such as a serving cell identifier for the downlink beam configuration, a bandwidth part identifier associated with the downlink beam configuration, one or more TCI state identifiers associated with the downlink beam configuration, etc. In some aspects, the DCI may identify the QCL source reference signal for the downlink beam configuration. For example, the DCI may identify the QCL source reference signal according to the QCL type of the TCI state. The QCL source reference signal may include SSB, CSI-RS, SRS, etc.

[0070] In some aspects, the DCI format of the DCI may be based at least in part on an existing DCI format, such as DCI format 1_1 or 1_2 for PDSCH scheduling. In such a case, the DCI may indicate which TCI state in the DCI is applied to the control resource set identifier (e.g., using one or more reserved bits, a configurable field of the DCI, etc.). In some aspects, the DCI format may not be based at least in part on an existing format. For example, the DCI format may be a DCI format dedicated to activating a TCI state (e.g., not based on DCI formats 0_0, 0_1, 1_0, 1_1, 1_1, 2_0, 2_1, 2_1, 2_2, or 2_3). In some aspects, the DCI may indicate which TCI state (or downlink beam configuration) to activate based at least in part on the condition that the selected TCI state was not activated prior to receiving the DCI.

[0071] As shown in reference numeral 430, UE 120 may activate a TCI state associated with a PDSCH (e.g., a downlink beam configuration). For example, UE 120 may determine that the downlink beam configuration is available for performing reception. In some aspects, the UE may communicate using the activated TCI state. For example, UE 120 may apply a specific spatial filter to a receive antenna or antenna port group, may use a QCL source reference signal of the downlink beam configuration to determine one or more QCL parameters, may monitor the QCL source reference signal of the downlink beam configuration, and so on. By activating the downlink beam configuration using DCI, UE 120 and BS 110 may reduce latency and overhead, thereby saving computational resources.

[0072] As shown by reference numeral 440, BS 110 may transmit a PDSCH based on the TCI state of the PDSCH, and UE 120 may receive the PDSCH. For example, as described above, UE 120 may use the TCI state of the PDSCH to determine the QCL properties of a receive beam and generate a receive beam to receive the PDSCH. In some aspects, UE 120 may use one or more TCI states activated as described in conjunction with example 400 to perform mobility operations, such as intra-cell mobility operations or inter-cell mobility operations.

[0073] Figure 5 The example 500 shown in FIG. 5 is an example of activation of a semi-persistent (SP) or aperiodic (AP) channel state information reference signal (CSI-RS) TCI state based on DCI.

[0074] like Figure 5As shown, by reference numeral 510, BS 110 may provide configuration information to UE 120. As further shown, the configuration information may include configuration information for multiple CSI-RS TCI states. In some aspects, the CSI-RS TCI state may be referred to as a downlink beam configuration. The CSI-RS TCI state may include a TCI state for generating a receive beam to receive a CSI-RS (such as an AP-CSI-RS or an SP-CSI-RS).

[0075] As shown at 520, BS 110 may transmit a DCI to UE 120. As further shown, the DCI may indicate that a CSI-RS TCI state is to be activated. For example, the DCI may indicate that a CSI-RS TCI state is to be used for transmission or reception. In other words, the DCI may indicate that a downlink beam configuration is to be activated. In some aspects, the DCI may include one or more parameters related to the downlink beam configuration, which may identify the downlink beam configuration, etc.

[0076] In some aspects, a DCI may schedule uplink or downlink signals, which may save computational resources that would otherwise be used to provide scheduling information separately from the DCI used to activate the downlink beam configuration. In some aspects, a DCI may not schedule uplink or downlink communications, which may increase the flexibility of the DCI's timing and reduce the overhead associated with the DCI.

[0077] In some aspects, the DCI may include one or more parameters associated with the downlink beam configuration, such as an SP / AP CSI-RS resource set identifier, a serving cell identifier and / or a bandwidth part identifier of the SP / AP CSI-RS resource set identifier, an activated TCI state identifier for each CSI-RS resource identifier in the CSI-RS resource set, and the like.

[0078] In some aspects, the DCI format of the DCI may be based at least in part on an existing DCI format, such as DCI format 1_1 or 1_2 for PDSCH scheduling. In such a case, the DCI may indicate which TCI state in the DCI is applied to the CSI-RS resource identifier as the activated TCI state (e.g., using one or more reserved bits, a configurable field of the DCI, etc.). In some aspects, the DCI format may not be based at least in part on an existing format. For example, the DCI format may be a DCI format dedicated to TCI state activation (e.g., not based on DCI formats 0_0, 0_1, 1_0, 1_1, 1_1, 2_0, 2_1, 2_1, 2_2, or 2_3). In some aspects, the DCI may indicate which TCI state (or downlink beam configuration) to activate based at least in part on the condition that the selected TCI state was not activated prior to receiving the DCI.

[0079] As shown in reference numeral 530, UE 120 may activate a TCI state (e.g., a downlink beam configuration) associated with a CSI-RS. For example, UE 120 may determine that the TCI state may be used to receive communications. In some aspects, UE 120 may receive communications based at least in part on the activated downlink beam configuration. For example, UE 120 may apply a specific spatial filter to a receive antenna or antenna port group, may monitor a CSI-RS resource set or CSI-RS resource identified by the TCI state, and so on. By activating the downlink beam configuration using DCI, UE 120 and BS 110 may reduce latency and overhead, thereby saving computational resources. In some aspects, UE 120 may use one or more TCI states activated as described in conjunction with example 500 to perform mobility operations, such as intra-cell mobility operations or inter-cell mobility operations.

[0080] As shown by reference numeral 540, BS 110 may transmit CSI-RS according to the TCI state of the CSI-RS, and UE 120 may receive the CSI-RS. For example, as described above, UE 120 may use the TCI state of the CSI-RS to determine the QCL property of the receive beam and generate a receive beam to receive the CSI-RS. In some aspects ( Figure 5 ), UE 120 may send CSI feedback based at least in part on receiving the CSI-RS.

[0081] Figure 6 The example 600 shown in FIG. 6 is an example of activation of a spatial relationship for a physical uplink control channel (PUCCH) or SRS based on DCI.

[0082] like Figure 6As shown, by reference numeral 610, BS 110 may provide configuration information to UE 120. As further shown, the configuration information may include configuration information for multiple spatial relationships of PUCCH or SRS. In some aspects, the spatial relationship of PUCCH or SRS may be referred to as an uplink beam configuration. The spatial relationship may identify a relationship between spatial parameters associated with a reference signal and spatial parameters associated with PUCCH or SRS.

[0083] As indicated by reference numeral 620, BS 110 may transmit a DCI to UE 120. As further shown, the DCI may indicate that a spatial relationship is to be activated. For example, the DCI may indicate that the spatial relationship is to be used to perform a transmission. In other words, the DCI may indicate that an uplink beam configuration is to be activated. In some aspects, the DCI may include one or more parameters related to the uplink beam configuration, which may identify the uplink beam configuration, etc.

[0084] In some aspects, a DCI may schedule uplink or downlink signals, which may save computational resources that would otherwise be used to provide scheduling information separately from the DCI used to activate the uplink beam configuration. In some aspects, a DCI may not schedule uplink or downlink communications, which may increase the flexibility of the DCI's timing and reduce the overhead associated with the DCI.

[0085] In some aspects, the DCI may include one or more parameters associated with the uplink beam configuration, such as a PUCCH or SRS serving cell identifier, a PUCCH or SRS resource identifier, an SRS resource set identifier, a spatial relation reference signal identifier for one or more PUCCH or SRS resource identifiers (e.g., where the spatial relation reference signal includes SSB, CSI-RS, SRS, etc.), a serving cell identifier and / or a bandwidth part identifier per spatial relation reference signal identifier, and the like.

[0086] In some aspects, the DCI format of the DCI may be based at least in part on an existing DCI format, such as DCI format 0_1 ​​or 0_2 for PUSCH scheduling. In such a case, the DCI may indicate the spatial relationship of the selected SRS resource identifier to be applied to the PUCCH or SRS resource identifier in the DCI (e.g., using one or more reserved bits, a configurable field of the DCI, etc.). In some aspects, the DCI format may not be based at least in part on an existing format. For example, the DCI format may be a new DCI format (e.g., not based on DCI formats 0_0, 0_1, 1_0, 1_1, 1_1, 2_0, 2_1, 2_2, or 2_3).

[0087] As shown by reference numeral 630, UE 120 may activate a spatial relationship (e.g., an uplink beam configuration) associated with a PUCCH or SRS. For example, UE 120 may determine that the spatial relationship may be used for transmission of a communication. In some aspects, UE 120 may use the spatial relationship to transmit the PUCCH or SRS. For example, UE 120 may determine spatial parameters associated with the PUCCH or SRS by referencing a reference signal identified by the spatial relationship, etc. By using DCI to activate the uplink beam configuration, UE 120 and BS 110 may reduce latency and overhead, thereby saving computing resources.

[0088] As shown in reference numeral 640, UE 120 may transmit a PUCCH or SRS based on the spatial relationship activated for the PUCCH or SRS, and BS 110 may receive the PUCCH or SRS. For example, as described above, UE 120 may use spatial parameters of a reference signal to generate a beam for transmitting the PUCCH or SRS. In some aspects, when using uplink beam configuration, the base station may use a receive beam for uplink communications or signals corresponding to the identified spatial relationship, and / or the UE may use a transmit beam for uplink communications or signals corresponding to the identified spatial relationship. In some aspects, UE 120 may use one or more TCI states activated as described in conjunction with example 600 to perform mobility operations, such as intra-cell mobility operations or inter-cell mobility operations.

[0089] Figure 7 The example 700 shown in FIG. 7 is an example of activation of an uplink TCI state for PUCCH, PUSCH, physical random access channel (PRACH), SRS, or other types of channels based on DCI.

[0090] like Figure 7 As shown, by reference numeral 710, BS 110 may provide configuration information to UE 120. As further shown, the configuration information may include configuration information for multiple uplink TCI states. In some aspects, the uplink TCI states may be referred to as uplink beam configurations. The uplink TCI states may include TCI states for generating transmit beams to transmit uplink signals, such as PUCCH, PUSCH, PRACH, SRS, etc.

[0091] As shown in reference numeral 720, BS 110 may send a DCI to UE 120. As further shown, the DCI may indicate that an uplink TCI state is to be activated. For example, the DCI may indicate that an uplink TCI state is available for transmission. In other words, the DCI may indicate that an uplink beam configuration is to be activated. In some aspects, the DCI may include one or more parameters related to the uplink beam configuration, which may identify the uplink beam configuration, etc.

[0092] In some aspects, a DCI may schedule uplink or downlink signals, which may save computational resources that would otherwise be used to provide scheduling information separately from the DCI used to activate the uplink beam configuration. In some aspects, a DCI may not schedule uplink or downlink communications, which may increase the flexibility of the DCI's timing and reduce the overhead associated with the DCI.

[0093] In some aspects, the DCI may include one or more parameters associated with the uplink beam configuration, such as a PUCCH / SRS / PUSCH / PRACH serving cell identifier and / or resource identifier, an SRS resource set identifier, etc. In some aspects, the DCI may indicate an uplink TCI source reference signal identifier for the PUCCH / SRS / PUSCH / PRACH resource identifier. For example, the uplink TCI source reference signal may be an SSB, CSI-RS, SRS, etc. In some aspects, the DCI may indicate a serving cell identifier and / or a bandwidth part identifier for each uplink TCI source reference signal identifier.

[0094] In some aspects, the DCI format of the DCI may be based at least in part on an existing DCI format, such as DCI format 0_1 ​​or 0_2 for PUSCH scheduling. In such a case, the DCI may indicate that a spatial reference signal having a spatial relationship with the selected SRS resource identifier in the DCI is applied or used as an uplink TCI source reference signal for one or more PUCCH / PUSCH / PRACH / SRS resource identifiers (e.g., using one or more reserved bits, a configurable field of the DCI, etc.). In some aspects, the DCI format may not be based at least in part on an existing format. For example, the DCI format may be a DCI format dedicated to TCI state activation (e.g., not based on DCI formats 0_0, 0_1, 1_0, 1_1, 1_1, 2_0, 2_1, 2_1, 2_2, or 2_3).

[0095] As shown by reference numeral 730, UE 120 may activate an uplink TCI state (e.g., an uplink beam configuration). For example, UE 120 may determine that the uplink TCI state is usable for transmitting communications. In some aspects, UE 120 may transmit communications using the activated uplink TCI state. For example, UE 120 may apply a specific spatial filter to a transmit antenna or antenna port group, and may determine spatial parameters of a beam for transmitting PUCCH, SRS, PUSCH, or PRACH, etc. By using DCI to activate the uplink beam configuration, UE 120 and BS 110 may reduce latency and overhead, thereby saving computing resources.

[0096] As shown in reference numeral 740, UE 120 may transmit uplink communications according to the activated uplink TCI state, and BS 110 may receive the uplink communications. For example, as described above, UE 120 may use the TCI state activated for uplink communications to determine the QCL properties of a transmit beam and generate the transmit beam to transmit the uplink communications. In some aspects, UE 120 may use one or more TCI states activated as described in connection with example 700 to perform mobility operations, such as intra-cell mobility operations or inter-cell mobility operations.

[0097] Figure 8 The example 800 shown in FIG. 8 is an example of activation of a path loss reference signal configuration for PUCCH, SRS, PUSCH, or other types of channels based on DCI.

[0098] like Figure 8 As shown, by reference numeral 810, BS 110 may provide configuration information to UE 120. As further shown, the configuration information may include configuration information of a path loss reference signal configuration.

[0099] like Figure 8 As shown, by reference numeral 810, BS 110 may provide configuration information to UE 120. As further shown, the configuration information may include configuration information for multiple path loss reference signal configurations. The path loss reference signal configuration may identify resource allocation and / or other parameters for receiving path loss reference signals for PUCCH, SRS, PUSCH, etc.

[0100] As shown at 820, BS 110 may transmit a DCI to UE 120. As further shown, the DCI may indicate that a path loss reference signal configuration is to be activated. For example, the DCI may indicate that the path loss reference signal configuration is available for performing transmission or reception of a path loss reference signal. In some aspects, the DCI may include one or more parameters related to the path loss reference signal configuration, which may identify the path loss reference signal configuration, among other things.

[0101] In some aspects, the DCI may schedule uplink or downlink signals, which may save computational resources that would otherwise be used to provide scheduling information separately from the DCI used to activate the path loss reference signal configuration. In some aspects, the DCI may not schedule uplink or downlink communications, which may increase the flexibility of the timing of the DCI and reduce the overhead associated with the DCI.

[0102] In some aspects, the DCI may include one or more parameters associated with the path loss reference signal configuration, such as a PUCCH / SRS / PUSCH service cell identifier, a PUCCH resource identifier, an SRS resource set identifier, an SRS resource identifier for PUSCH (e.g., sri-PUSCH-PowerControlId), an SRS resource identifier, a path loss reference signal identifier, a path loss reference signal service cell identifier, a path loss reference signal bandwidth part identifier, etc.

[0103] In some aspects, the DCI format of the DCI may be based at least in part on an existing DCI format, such as DCI format 0_1 ​​or 0_2 for PUSCH scheduling. In such a case, the DCI may indicate that a spatial reference signal having a spatial relationship with a selected SRS resource identifier in the DCI is applied or used as a path loss reference signal for one or more PUCCH / SRS / PUSCH resource identifiers (e.g., using one or more reserved bits, a configurable field of the DCI, etc.). In some aspects, the DCI format may not be based at least in part on an existing format. For example, the DCI format may be a DCI format dedicated to TCI state activation (e.g., not based on DCI formats 0_0, 0_1, 1_0, 1_1, 1_1, 2_0, 2_1, 2_1, 2_2, or 2_3).

[0104] As shown in reference numeral 830, UE 120 may activate a path loss reference signal configuration (e.g., an uplink beam configuration). For example, UE 120 may determine that a path loss reference signal may be used to transmit a path loss reference signal. In some aspects, UE 120 may perform communications based on the activated path loss reference signal configuration. For example, UE 120 may generate a receive beam based on the path loss reference signal configuration, may monitor a reference signal identified by the path loss reference signal configuration, and so on. By activating the path loss reference signal configuration using DCI, UE 120 and BS 110 may reduce latency and overhead, thereby saving computing resources.

[0105] As shown in reference numeral 840, BS 110 may transmit a path loss reference signal according to the activated path loss reference signal configuration, and UE 120 may receive the path loss reference signal. For example, as described above, UE 120 may detect the path loss reference signal according to the path loss reference signal configuration. In some aspects, UE 120 may determine spatial parameters or power control parameters for a PUCCH, SRS, or PUSCH associated with the path loss reference signal. As shown in reference numeral 850, UE 120 may transmit the PUCCH, SRS, or PUSCH using the spatial parameters or power control parameters. In some aspects, UE 120 may perform mobility operations, such as intra-cell mobility operations or inter-cell mobility operations, using one or more TCI states activated as described in conjunction with example 800.

[0106] As mentioned above, Figure 3-Figure 8 are provided as one or more examples. Other examples may differ from those described in Figure 3-Figure 8 described.

[0107] Figure 9 is a diagram illustrating an example process 900, performed, for example, by a UE, in accordance with various aspects of the present disclosure. Example process 900 is an example of a UE (eg, UE 120, etc.) performing operations associated with DCI-based beam and path loss reference signal configuration activation. Figure 9 Dashed boxes in indicate optional steps.

[0108] like Figure 9 As shown, in some aspects, process 900 may include receiving DCI that includes one or more parameters related to at least one of an activated uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration (block 910). For example, a UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.) may receive the DCI, as shown by reference numerals 310, 410, 510, 610, 710, and 810. As described above, the DCI may include parameters related to an activated uplink beam configuration (e.g., Figure 6 PUCCH / SRS spatial relationship or Figure 7 Uplink TCI status), downlink beam configuration (e.g., Figure 3 PDCCH TCI status, Figure 4 PDSCH TCI status or Figure 5 CSI-RS TCI status) or path loss reference signal configuration (such as Figure 8 One or more parameters related to at least one of the above (as shown).

[0109] like Figure 9 As further shown in FIG. 9 , in some aspects, process 900 may include activating an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration based on the DCI (block 920). For example, the UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, etc.) may activate an uplink beam configuration (as shown by reference numerals 630 and 730), a downlink beam configuration (as shown by reference numerals 330, 430, and 530), or a path loss reference signal configuration (as shown by reference numeral 830).

[0110] like Figure 9 As further shown in FIG, in some aspects, process 900 may include receiving or transmitting communications on a beam based on an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration (block 930). For example, as described above, the UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, etc.) may receive or transmit communications on a beam based on an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration. Reference numerals 640 and 740 illustrate transmitting communications based on an uplink beam configuration. Reference numerals 340, 440, and 540 illustrate receiving communications based on a downlink beam configuration. Reference numeral 840 illustrates receiving communications (e.g., a path loss reference signal) based on a path loss reference signal configuration, and reference numeral 850 illustrates transmitting communications (e.g., a PUSCH, PUCCH, or SRS) based at least in part on a path loss reference signal.

[0111] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below, and / or in conjunction with one or more other processes described elsewhere herein.

[0112] In a first aspect, a downlink beam configuration includes at least one of a PDCCH TCI state, a PDSCH TCI state, a semi-persistent (SP) CSI-RS TCI state, or an aperiodic (AP) CSI-RS TCI state. In a second aspect, alone or in combination with the first aspect, when the downlink beam configuration includes the PDCCH TCI state, the DCI indicates at least one of a serving cell identifier, a control resource set identifier, or a TCI state identifier. In a third aspect, alone or in combination with one or more of the first and second aspects, when the downlink beam configuration includes the PDSCH TCI state, the DCI indicates at least one of a serving cell identifier, a bandwidth part identifier, or a TCI state identifier. In a fourth aspect, alone or in combination with one or more of the first to third aspects, when the downlink beam configuration includes the SP CSI-RS TCI state or the AP CSI-RS TCI state, the DCI indicates at least one of a CSI-RS resource set identifier, a serving cell identifier corresponding to the CSI-RS resource set identifier, or a bandwidth part identifier corresponding to the CSI-RS resource set identifier. In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the DCI indicates one or more active TCI state identifiers corresponding to the CSI-RS resource set identifier.

[0113] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the uplink beam configuration includes at least one of a PUCCH spatial relationship, an SRS spatial relationship, a PUCCH TCI state, a PUSCH TCI state, a PRACH TCI state, or an SRS TCI state. In a seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the DCI indicates at least one of a serving cell identifier, a resource identifier, or an SRS resource set identifier.

[0114] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, a path loss reference signal is configured for at least one of a PUCCH, a PUSCH, or an SRS. In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the DCI indicates at least one of a serving cell identifier for the PUCCH, a serving cell identifier for the PUSCH, or a serving cell identifier for the SRS. In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, the DCI indicates at least one of a PUCCH resource identifier, an SRS resource set identifier, an SRS resource indicator power control parameter, or an SRS resource indicator. In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the DCI indicates at least one of a path loss reference signal configuration identifier, a path loss reference signal configuration serving cell identifier, or a path loss reference signal configuration bandwidth part identifier.

[0115] In a twelfth aspect, alone or in combination with one or more of aspects 1 to eleven, the DCI is associated with a DCI format that includes scheduling information for an uplink or downlink signal. In a thirteenth aspect, alone or in combination with one or more of aspects 1 to twelfth, the DCI is associated with a DCI format that does not include scheduling information for an uplink or downlink signal. In a fourteenth aspect, alone or in combination with one or more of aspects 1 to thirteen, the DCI indicates one or more quasi-co-located source reference signals corresponding to one or more quasi-co-located types of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration.

[0116] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, one or more uplink TCI source reference signals correspond to one or more physical uplink control channel resource identifiers, one or more sounding reference signal resource identifiers, one or more physical uplink shared channel resource identifiers, or one or more physical random access channel resource identifiers. In the sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, the DCI indicates one or more serving cell identifiers or one or more bandwidth part identifiers corresponding to the one or more uplink TCI source reference signals. In the seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, the DCI indicates one or more spatial relation reference signal identifiers or one or more sounding reference signal resource identifiers corresponding to one or more physical uplink control channels.

[0117] In an eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, the DCI indicates one or more serving cell identifiers, or one or more bandwidth part identifiers, corresponding to one or more spatial relation reference signal identifiers. In a nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the DCI is associated with a DCI format for scheduling a physical downlink shared channel or a physical uplink shared channel. In a twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, a reserved bit or field of the DCI indicates that an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration is to be activated. In a twenty-first aspect, alone or in combination with one or more of the first to twentieth aspects, the DCI indicates activation of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration based at least in part on an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration that was inactive prior to receiving the DCI.

[0118] In aspect 22, alone or in combination with one or more of aspects 1 to 21, the DCI indicates a mapping between a TCI state of a downlink beam configuration and a control resource set identifier. In aspect 23, alone or in combination with one or more of aspects 1 to 22, the DCI indicates a TCI state of a downlink beam configuration activated for a physical downlink shared channel.

[0119] In aspect 24, alone or in combination with one or more of aspects 1 to 23, the DCI indicates a mapping between an activated TCI state of a downlink beam configuration and a channel state information reference signal identifier. In aspect 25, alone or in combination with one or more of aspects 1 to 24, the DCI indicates a mapping between a spatial relationship of a selected SRS resource indicator of the DCI and a physical uplink control channel resource identifier or a sounding reference signal resource identifier.

[0120] In a twenty-sixth aspect, alone or in combination with one or more of aspects 1 to 25, the DCI indicates that a spatial reference signal for a spatial relationship of a selected SRS resource indicator for the DCI is to be used as a source reference signal for a physical uplink control channel resource identifier, a physical uplink shared channel resource identifier, a physical random access channel resource identifier, or a sounding reference signal resource identifier. In a twenty-seventh aspect, alone or in combination with one or more of aspects 1 to 26, the DCI indicates that a spatial reference signal for a spatial relationship of a selected SRS resource indicator for the DCI is to be used as a path loss reference signal for a physical uplink control channel resource identifier, a physical uplink shared channel resource identifier, a physical random access channel resource identifier, or a sounding reference signal resource identifier.

[0121] In a twenty-eighth aspect, alone or in combination with one or more of aspects 1 to 27, the DCI is a first DCI, and process 900 includes, before receiving or transmitting a communication, receiving a second DCI indicating an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration to be used for the communication, wherein receiving or transmitting the communication on the beam is based at least in part on the second DCI. In a twenty-ninth aspect, alone or in combination with one or more of aspects 1 to 28, the communication is performed in association with an inter-cell mobility operation or an intra-cell mobility operation.

[0122] although Figure 9 Example blocks of process 900 are shown, but in some aspects, process 900 may include more Figure 9 The blocks of process 900 may be more blocks, fewer blocks, different blocks, or blocks arranged differently than those depicted in FIG. Additionally or alternatively, two or more blocks of process 900 may be executed in parallel.

[0123] Figure 10 1 is a diagram illustrating an example process 1000, for example, performed by a base station, in accordance with various aspects of the present disclosure. Example process 1000 is an example of a base station (eg, base station 110, etc.) performing operations associated with DCI-based beam and path loss reference signal configuration activation.

[0124] like Figure 10As shown, in some aspects, process 1000 may include transmitting DCI to a UE, the DCI including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration (block 1010). For example, as described above, a base station (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) may transmit DCI to a UE including one or more parameters related to activating at least one of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration. The transmission of the DCI is illustrated, for example, by reference numerals 310, 410, 510, 610, 710, and 810. As described above, the one or more parameters may be related to activating an uplink beam configuration (e.g., Figure 6 PUCCH / SRS spatial relationship or Figure 7 Uplink TCI status), downlink beam configuration (e.g., Figure 3 PDCCH TCI status, Figure 4 PDSCH TCI status, or Figure 5 CSI-RS TCI status), or path loss reference signal configuration (such as Figure 8 shown) related.

[0125] like Figure 10 As further shown in FIG, in some aspects, process 1000 may include communicating with a UE based on one or more of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration (block 1020). For example, as described above, a base station (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, DEMOD 232, MIMO detector 236, receive processor 238, etc.) may communicate with the UE based on one or more of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration. Reference numerals 640 and 740 illustrate receiving communications from the UE based on the uplink beam configuration. Reference numerals 340, 440, and 540 illustrate transmitting communications based on the downlink beam configuration. Reference numeral 840 illustrates transmitting communications (e.g., a path loss reference signal) based on the path loss reference signal configuration, and reference numeral 850 illustrates receiving communications (e.g., a PUSCH, PUCCH, or SRS) based at least in part on the path loss reference signal.

[0126] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below, and / or in conjunction with one or more other processes described elsewhere herein.

[0127] In a first aspect, a downlink beam configuration includes at least one of a PDCCH TCI state, a PDSCH TCI state, an SP-CSI-RS TCI state, or an AP-CSI-RS TCI state. In a second aspect, alone or in combination with the first aspect, when the downlink beam configuration includes the PDCCH TCI state, the DCI indicates at least one of a serving cell identifier, a control resource set identifier, or a TCI state identifier. In a third aspect, alone or in combination with one or more of the first and second aspects, when the downlink beam configuration includes the PDSCH TCI state, the DCI indicates at least one of a serving cell identifier, a bandwidth part identifier, or a TCI state identifier. In a fourth aspect, alone or in combination with one or more of the first to third aspects, when the downlink beam configuration includes the SP CSI-RS TCI state or the AP CSI-RS TCI state, the DCI indicates at least one of a CSI-RS resource set identifier, a serving cell identifier corresponding to the CSI-RS resource set identifier, or a bandwidth part identifier corresponding to the CSI-RS resource set identifier. In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the DCI indicates one or more active TCI state identifiers corresponding to the CSI-RS resource set identifier.

[0128] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the uplink beam configuration includes at least one of a PUCCH spatial relationship, an SRS spatial relationship, a PUCCH TCI state, a PUSCH TCI state, a PRACH TCI state, or an SRS TCI state. In a seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the DCI indicates at least one of a serving cell identifier, a resource identifier, or an SRS resource set identifier.

[0129] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, a path loss reference signal is configured for at least one of a PUCCH, a PUSCH, or an SRS. In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, a DCI indicates at least one of a serving cell identifier for a PUCCH, a serving cell identifier for a PUSCH, or a serving cell identifier for an SRS. In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, a DCI indicates at least one of a PUCCH resource identifier, an SRS resource set identifier, an SRS resource indicator power control parameter, or an SRS resource indicator.

[0130] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the DCI indicates at least one of a path loss reference signal configuration identifier, a path loss reference signal configuration serving cell identifier, or a path loss reference signal configuration bandwidth part identifier. In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the DCI is associated with a DCI format that includes scheduling information for uplink or downlink signals. In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the DCI is associated with a DCI format that does not include scheduling information for uplink or downlink signals.

[0131] In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the DCI indicates one or more quasi-co-location source reference signals corresponding to one or more quasi-co-location types of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration. In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, one or more uplink TCI source reference signals correspond to one or more physical uplink control channel resource identifiers, one or more sounding reference signal resource identifiers, one or more physical uplink shared channel resource identifiers, or one or more physical random access channel resource identifiers. In the sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, the DCI indicates one or more serving cell identifiers or one or more bandwidth part identifiers corresponding to the one or more uplink TCI source reference signals.

[0132] In a seventeenth aspect, alone or in combination with one or more of aspects 1 to 16, the DCI indicates one or more spatial relation reference signal identifiers or one or more sounding reference signal resource identifiers corresponding to one or more physical uplink control channels. In an eighteenth aspect, alone or in combination with one or more of aspects 1 to 17, the DCI indicates one or more serving cell identifiers or one or more bandwidth part identifiers corresponding to the one or more spatial relation reference signal identifiers. In a nineteenth aspect, alone or in combination with one or more of aspects 1 to 18, the DCI is associated with a DCI format for scheduling a physical downlink shared channel or a physical uplink shared channel.

[0133] In a 20th aspect, alone or in combination with one or more of aspects 1 to 19, a reserved bit or field of a DCI indicates that an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration is to be activated. In a 21st aspect, alone or in combination with one or more of aspects 1 to 20, a DCI indicates activation of an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration based at least in part on an uplink beam configuration, a downlink beam configuration, or a path loss reference signal configuration that was inactive prior to receiving the DCI.

[0134] In aspect 22, alone or in combination with one or more of aspects 1 to 21, the DCI indicates a mapping between a TCI state of a downlink beam configuration and a control resource set identifier. In aspect 23, alone or in combination with one or more of aspects 1 to 22, the DCI indicates a TCI state of a downlink beam configuration activated for a physical downlink shared channel. In aspect 24, alone or in combination with one or more of aspects 1 to 23, the DCI indicates a mapping between an activated TCI state of a downlink beam configuration and a channel state information reference signal identifier. In aspect 25, alone or in combination with one or more of aspects 1 to 24, the DCI indicates a mapping between a spatial relationship of a selected SRS resource indicator of the DCI and a physical uplink control channel resource identifier or a sounding reference signal resource identifier. In aspect 26, alone or in combination with one or more of aspects 1 to 25, the DCI indicates that a spatial reference signal for the spatial relationship of the selected SRS resource indicator of the DCI is to be used as a source reference signal for a physical uplink control channel resource identifier, a physical uplink shared channel resource identifier, a physical random access channel resource identifier, or a sounding reference signal resource identifier. In aspect 27, alone or in combination with one or more of aspects 1 to 26, the DCI indicates that a spatial reference signal of a spatial relationship of a selected SRS resource indicator for the DCI will be used as a path loss reference signal for a physical uplink control channel resource identifier, a physical uplink shared channel resource identifier, a physical random access channel resource identifier, or a sounding reference signal resource identifier.

[0135] although Figure 10 Example blocks of process 1000 are shown, but in some aspects, process 1000 may include more Figure 10 The blocks of process 1000 may be more blocks, fewer blocks, different blocks, or blocks arranged differently than those depicted in FIG. Additionally or alternatively, two or more blocks of process 1000 may be executed in parallel.

[0136] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit these aspects to the precise form disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of these aspects.

[0137] 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 in hardware, firmware, and / or a combination of hardware and software.

[0138] As used herein, satisfying a threshold may refer to a value that is 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.

[0139] It will be apparent that the systems and / or methods described herein can be implemented using various forms of hardware, firmware, and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit these aspects. Thus, the operation and behavior of the systems and / or methods are described herein without reference to specific software code, with the understanding that software and hardware can be designed to implement the systems and / or methods based, at least in part, on the description herein.

[0140] Even though particular combinations of features are set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of the various aspects. In fact, many of these features can be combined in ways not specifically set forth in the claims and / or disclosed in the specification. Although each dependent claim listed below may be directly dependent on only one claim, the disclosure of the various aspects includes the combination of each dependent claim with every other claim in the claim set. A phrase referring to "at least one" of a series of items refers to any combination of those items, including single members. For example, "at least one of a, b, or c" is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination of multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or in any other order).

[0141] Unless explicitly described, any element, action or instruction used in this article should not be interpreted as critical or essential. In addition, as used herein, the articles "one" and "an" are intended to include one or more items 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 items (e.g., related items, unrelated items, a combination of related and unrelated items, etc.) and can be used interchangeably with "one or more". If only one item is referred to, the phrase "only one" or similar language is used. In addition, as used herein, the terms "have", "have" and / or similar terms are intended to be open terms. In addition, the phrase "based on" is intended to mean "based at least in part on", unless otherwise explicitly stated.

Claims

1. A user equipment (UE) for wireless communication, comprising: Memory; and One or more processors operatively coupled to a memory, the memory and the one or more processors being configured to: receiving downlink control information (DCI), the downlink control information including one or more parameters related to an activated uplink beam configuration and a downlink beam configuration and used for scheduling an uplink signal or a downlink signal; activating an uplink beam configuration and a downlink beam configuration according to the DCI; as well as Communication is performed according to the activated uplink beam configuration and the activated downlink beam configuration.

2. The UE according to claim 1, wherein: The downlink beam configuration includes at least one of the following: Physical downlink control channel PDCCH transmission configuration indicator TCI status, Physical downlink shared channel PDSCH TCI status, Semi-persistent SP channel state information reference signal CSI-RS TCI state, or Aperiodic AP CSI-RS TCI status.

3. The UE according to claim 1, wherein: The uplink beam configuration includes at least one of the following: The spatial relationship of the physical uplink control channel PUCCH, The spatial relationship of the sounding reference signal SRS, PUCCH transmission configuration indicator TCI status, Physical uplink shared channel PUSCH TCI status, Physical Random Access Channel PRACH TCI status, or SRS TCI status.

4. The UE according to claim 1, wherein: The DCI is associated with a DCI format including scheduling information of an uplink or downlink signal. The UE according to claim 1 , wherein: The DCI indicates one or more uplink transmission configuration indicator (TCI) source reference signals corresponding to one or more quasi co-location types for uplink beam configuration or downlink beam configuration. The UE according to claim 1 , wherein: The DCI indicates one or more spatial relation reference signal identifiers corresponding to one or more physical uplink control channels, or one or more sounding reference signal resource identifiers.

7. The UE according to claim 1, wherein: The reserved bit or field of the DCI indicates that the uplink beam configuration or the downlink beam configuration is to be activated.

8. The UE according to claim 1, wherein: The DCI indicates that an uplink beam configuration or a downlink beam configuration is to be activated based at least in part on the uplink beam configuration or the downlink beam configuration being inactive prior to receiving the DCI.

9. The UE according to claim 1, wherein: The DCI indicates the mapping between the transmission configuration indicator (TCI) state and the control resource set identifier (CRSI) of the downlink beam configuration.

10. The UE according to claim 1, wherein: The DCI indicates the transmission configuration indicator (TCI) status of the downlink beam configuration activated for the physical downlink shared channel.

11. The UE according to claim 1, wherein: The DCI indicates the mapping between the transmission configuration indicator (TCI) state and the channel state information reference signal identifier (CSI) of the activation of the downlink beam configuration.

12. The UE according to claim 1, wherein: The DCI indicates a mapping between a spatial relationship of a selected sounding reference signal (SRS) resource indicator of the DCI and a physical uplink control channel resource identifier or a sounding reference signal resource identifier.

13. The UE according to claim 1, wherein: The one or more processors are configured to: Communications are received or transmitted on a beam according to the activated uplink beam configuration or the activated downlink beam configuration.

14. The UE according to claim 1, wherein: The communication is performed in association with an inter-cell mobility operation or an intra-cell mobility operation.

15. A base station for wireless communication, comprising: Memory; and One or more processors operatively coupled to a memory, the memory and the one or more processors being configured to: Sending downlink control information (DCI) to a user equipment (UE), where the downlink control information includes one or more parameters related to activating an uplink beam configuration and a downlink beam configuration and is used to schedule an uplink signal or a downlink signal, wherein the DCI is used for the UE to activate its uplink beam configuration and downlink beam configuration; and Communicate with the UE according to the activated uplink beam configuration and the activated downlink beam configuration. The base station according to claim 15 , wherein: The downlink beam configuration includes at least one of the following: Physical downlink control channel PDCCH transmission configuration indicator TCI status, Physical downlink shared channel PDSCH TCI status, Semi-persistent SP channel state information reference signal CSI-RS TCI state, or Aperiodic AP CSI-RS TCI status.

17. The base station according to claim 15, wherein: The uplink beam configuration includes at least one of the following: The spatial relationship of the physical uplink control channel PUCCH, The spatial relationship of the sounding reference signal SRS, PUCCH transmission configuration indicator TCI status, Physical uplink shared channel PUSCH TCI status, Physical Random Access Channel PRACH TCI status, or SRS TCI status.

18. The base station according to claim 15, wherein: The DCI is associated with a DCI format including scheduling information of an uplink or downlink signal.

19. The base station according to claim 15, wherein: The DCI indicates one or more uplink transmission configuration indicator (TCI) source reference signals corresponding to one or more quasi co-location types for uplink beam configuration or downlink beam configuration.

20. The base station according to claim 15, wherein The DCI indicates one or more spatial relation reference signal identifiers corresponding to one or more physical uplink control channels, or one or more sounding reference signal resource identifiers.

21. The base station according to claim 15, wherein The DCI is associated with a DCI format used for scheduling a physical downlink shared channel or a physical uplink shared channel.

22. A method of wireless communication performed by a user equipment (UE), comprising: receiving downlink control information (DCI), the downlink control information including one or more parameters related to an activated uplink beam configuration and a downlink beam configuration and used for scheduling an uplink signal or a downlink signal; and activating an uplink beam configuration and a downlink beam configuration according to the DCI; as well as Communication is performed according to the activated uplink beam configuration and the activated downlink beam configuration.

23. The method according to claim 22, further comprising: Communications are received or transmitted on beams according to the activated uplink beam configuration and the activated downlink beam configuration.

24. A method of wireless communication performed by a base station, comprising: Sending downlink control information (DCI) to a user equipment (UE), where the downlink control information includes one or more parameters related to activating an uplink beam configuration and a downlink beam configuration and is used to schedule an uplink signal or a downlink signal, wherein the DCI is used for the UE to activate its uplink beam configuration and downlink beam configuration; and Communicate with the UE according to the activated uplink beam configuration and the activated downlink beam configuration.

25. An apparatus for wireless communication, comprising means for performing the steps of the method of any one of claims 22-24.

26. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of any one of claims 22-24.

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