Shared transmit power for mTRP operation
By configuring the total maximum transmit power and PHR reporting mechanism at the UE, the problem of inefficient power control in multi-TRP operations is solved, effective management of transmit power is achieved, MPE requirements are met, and the performance of the communication system is improved.
Patent Information
- Application Number
- CN202380100993.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-10
- Publication Date
- 2026-03-06
AI Technical Summary
Existing wireless communication systems struggle to effectively manage and control the maximum transmit power at the user equipment (UE) during multi-TRP operations, resulting in inefficient power control and an inability to meet the maximum allowable exposure (MPE) requirement for uplink transmission to multiple TRPs simultaneously.
A mechanism is provided to determine the maximum transmit power for different TRPs and report the total configured maximum transmit power or power clearance (PHR) by configuring the total maximum transmit power and power clearance (PHR) reporting mechanism at the UE, thereby achieving more efficient power control and meeting the MPE requirements for multi-TRP UL transmission.
This improves the efficiency of power control, ensuring that the UE can effectively manage transmit power in multi-TRP operations, meet the MPE requirements of each TRP, and enhance the system's communication performance.
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Figure CN121620974A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates generally to communication systems, and more specifically to wireless communication systems having a configured maximum transmit power. Background Technology
[0002] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources. 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, and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems.
[0003] These multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables different wireless devices to communicate at the city, national, regional, and even global levels. An example telecommunications standard is 5G New Radio (NR). 5G NR is part of the Continuous Evolution of Mobile Broadband (CWB) program issued by the 3rd Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with the Internet of Things (IoT),) and other requirements. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), and ultra-reliable low-latency communications (URLLC). Some aspects of 5G NR are based on the 4G Long Term Evolution (LTE) standard. Further improvements to 5G NR technology are needed. Furthermore, these improvements can also be applied to other multiple access technologies and telecommunications standards that adopt these technologies. Summary of the Invention
[0004] The following is a simplified overview of one or more aspects to provide a basic understanding of such aspects. This invention is not a comprehensive overview of all conceived aspects. It neither identifies key or essential elements of all aspects nor describes the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed descriptions that follow.
[0005] In one aspect of this disclosure, a method, computer-readable medium, and apparatus are provided at a user equipment (UE). The apparatus may include at least one memory and at least one processor coupled to the at least one memory. Based at least in part on information stored in the at least one memory, the at least one processor is configured, individually or in any combination, to configure at least one maximum transmit power at the UE based on a Total Maximum Allowable Exposure (MPE). Based at least in part on information stored in the at least one memory, the at least one processor is configured, individually or in any combination, to transmit at least one uplink transmission to a network entity based on the at least one maximum transmit power and a set of power control parameters associated with a set of TRPs or a set of panels, wherein each power control parameter in the set of power control parameters is associated with a corresponding TRP in the set of TRPs or a corresponding panel in the set of panels.
[0006] To achieve the foregoing and related objectives, one or more aspects include the features fully described below and specifically pointed out in the claims. The following description and drawings set forth some exemplary features of one or more aspects in detail. However, these features indicate only a few of the various ways in which the principles of the various aspects may be employed. Attached Figure Description
[0007] Figure 1 This is a diagram illustrating an example of a wireless communication system and an access network.
[0008] Figure 2A This is an illustration of an example of the first frame according to various aspects of this disclosure.
[0009] Figure 2B This is a diagram illustrating examples of downlink (DL) channels within a subframe according to various aspects of this disclosure.
[0010] Figure 2C This is an illustration of an example of a second frame according to various aspects of this disclosure.
[0011] Figure 2D This is a diagram illustrating examples of uplink (UL) channels within a subframe according to various aspects of this disclosure.
[0012] Figure 3 This is a diagram illustrating examples of base stations and user equipment (UEs) in an access network according to various aspects of this disclosure.
[0013] Figure 4 This is an illustration of a base station and a UE communicating via a set of beams according to various aspects of this disclosure.
[0014] Figure 5This is a diagram illustrating a set of two TRPs associated with a particular UE according to various aspects of this disclosure.
[0015] Figure 6 This is a diagram illustrating example communication between a network entity and a UE according to various aspects of this disclosure.
[0016] Figure 7A This is a diagram illustrating example transmit power and MPE when there are two uplink transmissions according to various aspects of this disclosure.
[0017] Figure 7B This is a diagram illustrating example transmit power and MPE when there are two uplink transmissions according to various aspects of this disclosure.
[0018] Figure 8 This is a diagram illustrating example transmit power and MPE when there are two uplink transmissions according to various aspects of this disclosure.
[0019] Figure 9A This is a diagram illustrating an example transmission power sharing scenario in which the total maximum transmission power is less than the sum of the first transmission power transmitted via the first uplink and the second transmission power transmitted via the second uplink, according to various aspects of this disclosure.
[0020] Figure 9B This is an example diagram illustrating power sharing in which a second transmission is dropped according to various aspects of this disclosure.
[0021] Figure 9C This is an example diagram illustrating power sharing in which the transmission power of a second transmission is reduced according to various aspects of this disclosure.
[0022] Figure 9D This is an illustration of example transmission power sharing in which the first transmission power and the second transmission power are proportionally reduced based on a ratio, according to various aspects of this disclosure.
[0023] Figure 10A This is an example of various aspects of this disclosure, wherein the maximum transmission power per panel configuration is taken into account. The diagram illustrates an example PHR report for two panels that simultaneously report a specific PHR using the MPE values (MPE_0, MPE_1) and the two UL channels.
[0024] Figure 10B This is a diagram illustrating an example PHR report for two simultaneous UL channels reporting a single PHR, according to various aspects of this disclosure.
[0025] Figure 10CThis is a diagram illustrating an example PHR report for two simultaneous UL channels, two per-panel PHRs, and one cross-channel PHR, according to various aspects of this disclosure.
[0026] Figure 10D This is a diagram illustrating an example PHR report with two per-panel PHRs for two simultaneous UL channel reports having a virtual power split for the total configured transmit power, according to various aspects of this disclosure.
[0027] Figure 11 This is a diagram illustrating example transmission power and virtual transmission power according to various aspects of this disclosure.
[0028] Figure 12 This is a flowchart of a wireless communication method according to various aspects of this disclosure.
[0029] Figure 13 This is a flowchart of a wireless communication method according to various aspects of this disclosure.
[0030] Figure 14 These are illustrations illustrating specific hardware implementations used for example devices and / or network entities. Detailed Implementation
[0031] The detailed descriptions following, illustrated with reference to the accompanying drawings, describe various configurations and do not represent the only configurations in which the concepts described herein can be practiced. To provide a thorough understanding of the various concepts, the detailed descriptions include specific details. However, these concepts can be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form to avoid obscuring such concepts.
[0032] Various apparatuses and methods are presented with reference to several aspects of a telecommunications system. These apparatuses and methods are described in detail below and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively, “elements”). These elements can be implemented using electronic hardware, computer software, or any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the system as a whole.
[0033] For multi-TRP (mTRP) operations (such as a UE transmitting to multiple TRPs associated with a network entity), a configured MPE value may exist, which can be used to determine the total configured maximum transmit power. This paper provides mechanisms for determining the configured maximum transmit power for different TRPs and a Power Headroom (PHR) reporting mechanism for reporting the total configured maximum transmit power or the configured maximum transmit power for different TRPs, thereby enabling more efficient power control at the UE. Through more efficient power control at the UE, the UE can meet the MPE requirements for potentially simultaneous mTRP UL transmissions.
[0034] As an example, an element, any part of an element, or any combination of elements may be implemented as a "processing system" including one or more processors. When multiple processors are implemented, the multiple processors may perform functions individually or in combination. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, system-on-a-chip (SoCs), baseband processors, field-programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gate logic, discrete hardware circuits, and other suitable hardware configured to perform the various functionalities described throughout this disclosure. One or more processors in the processing system can execute software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other terms, software should be broadly interpreted as instructions, instruction sets, code, code segments, program code, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, or any combination thereof.
[0035] Therefore, in one or more example aspects, specific implementations, and / or use cases, the described functionality may be implemented in hardware, software, or any combination thereof. If implemented in software, the functionality may be stored or encoded as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media. Storage media can be any available medium that can be accessed by a computer. By way of example, such computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disc storage devices, magnetic disk storage devices, other magnetic storage devices, combinations of these types of computer-readable media, or any other medium that can be used to store computer-executable code in the form of instructions or data structures accessible by a computer.
[0036] While aspects, implementations, and / or use cases are described herein by way of example, additional or different aspects, implementations, and / or use cases may arise in many different arrangements and scenarios. The aspects, implementations, and / or use cases described herein can be implemented across many different platform types, devices, systems, shapes, sizes, and package arrangements. For example, aspects, implementations, and / or use cases may arise via integrated chip implementations and other devices based on non-modular components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / purchasing devices, medical devices, AI-enabled devices, etc.). While some examples may or may not be specific to a use case or application, the described examples may exhibit broad applicability. Aspects, implementations, and / or use cases can range from chip-level or modular components to non-modular, non-chip-level implementations, and further to aggregated, distributed, or original equipment manufacturer (OEM) devices or systems incorporating one or more of the technologies described herein. In some practical settings, devices incorporating the described aspects and features may also include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals necessarily involve multiple components for analog and digital purposes (e.g., hardware components including antennas, RF chains, power amplifiers, modulators, buffers, processors, interleavers, adders / summers, etc.). The techniques described herein can be practiced in a wide variety of devices, chip-level components, systems, distributed arrangements, aggregated or decomposed components, end-user equipment, etc., of various sizes, shapes, and configurations.
[0037] Communication systems, such as 5G NR systems, can be deployed in various ways with a variety of components or parts. In a 5G NR system or network, network nodes, network entities, network mobility elements, radio access network (RAN) nodes, core network nodes, network elements or network equipment (such as base stations (BS)), or one or more units (or components) performing base station functions can be implemented in aggregated or decomposed architectures. For example, BSs (such as Node B (NB), evolved NB (eNB), NR BS, 5G NB, access point (AP), transmit / receive point (TRP), or cell, etc.) can be implemented as aggregated base stations (also known as standalone BS or monolithic BS) or decomposed base stations.
[0038] Aggregated base stations can be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node. Decentralized base stations can be configured to utilize a protocol stack that is physically or logically distributed across two or more units, such as one or more central or centralized units (CUs), one or more distributed units (DUs), or one or more radio units (RUs). In some respects, the CU may be implemented within a RAN node, and one or more DUs may co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other RAN nodes. DUs may be implemented to communicate with one or more RUs. Each of the CUs, DUs, and RUs may be implemented as a virtual unit, namely a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU).
[0039] Base station operation or network design can take into account the aggregation characteristics of base station functionality. For example, decomposed base stations can be utilized in Integrated Access Backhaul (IAB) networks, Open Radio Access Networks (O-RAN (such as network configurations initiated by the O-RAN Alliance)), or Virtualized Radio Access Networks (vRAN, also known as Cloud Radio Access Networks (C-RAN)). Decomposition can include distributing functionality across two or more units in various physical locations, as well as virtually distributing the functionality of at least one unit, which enables flexibility in network design. The various units of a decomposed base station or decomposed RAN architecture can be configured to communicate wirelessly with at least one other unit.
[0040] Figure 1 Figure 100 illustrates an example of a wireless communication system and access network. The illustrated wireless communication system includes a decomposed base station architecture. The decomposed base station architecture may include one or more CUs 110, which may communicate directly with the core network 120 via a backhaul link, or indirectly with the core network 120 via one or more decomposed base station units, such as a near real-time (near-RT) RAN Intelligent Controller (RIC) 125 via an E2 link, or a non-real-time (non-RT) RIC 115 associated with a Service Management and Orchestration (SMO) framework 105, or both. CUs 110 may communicate with one or more DUs 130 via a corresponding midhaul link (such as an F1 interface). DUs 130 may communicate with one or more RUs 140 via a corresponding fronthaul link. RUs 140 may communicate with a corresponding UE 104 via one or more radio frequency (RF) access links. In some implementations, UE 104 may be served simultaneously by multiple RUs 140.
[0041] Each of the units (i.e., CU 110, DU 130, RU 140, and near-RT RIC 125, non-RT RIC 115, and SMO frame 105) may include or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via wired or wireless transmission media. Each of these units, or an associated processor or controller providing instructions to the communication interfaces of these units, may be configured to communicate with one or more other units via transmission media. For example, these units may include wired interfaces configured to receive signals or transmit signals to one or more other units via wired transmission media. Additionally, these units may include wireless interfaces that may include receivers, transmitters, or transceivers (such as RF transceivers) configured to receive signals via wireless transmission media or transmit signals to one or more other units, or both.
[0042] In some aspects, the CU 110 can host one or more higher-level control functions. Such control functions may include Radio Resource Control (RRC), Packet Data Convergence Protocol (PDCP), Serving Data Adaptation Protocol (SDAP), etc. Each control function can be implemented using an interface configured to signal to other control functions hosted by the CU 110. The CU 110 can be configured to handle user plane functionality (i.e., Central Unit-User Plane (CU-UP)), control plane functionality (i.e., Central Unit-Control Plane (CU-CP)), or a combination thereof. In some specific implementations, the CU 110 can be logically divided into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP units can communicate bidirectionally with the CU-CP units via an interface such as an E1 interface. The CU 110 can be implemented to communicate with the DU 130 for network control and signaling purposes, as needed.
[0043] DU 130 may correspond to a logic unit that includes one or more base station functions for controlling the operation of one or more RU 140s. In some aspects, DU 130 may at least partially host one or more of the Radio Link Control (RLC) layer, Media Access Control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.) according to functional splits (such as those defined by 3GPP). In some aspects, DU 130 may further host one or more low PHY layers. Each layer (or module) may be implemented using an interface configured to communicate signals with other layers (and modules) hosted by DU 130 or with control functions hosted by CU 110.
[0044] Lower-layer functionality can be implemented by one or more RU 140s. In some deployments, an RU140 controlled by a DU 130 may correspond to a logical node that hosts RF processing functions or low-PHY layer functions (such as performing Fast Fourier Transform (FFT), Inverse FFT (iFFT), digital beamforming, or Physical Random Access Channel (PRACH) extraction and filtering, or both, at least in part based on functional decomposition (such as lower-layer functional decomposition). In this architecture, the RU 140 may be implemented to handle over-the-air (OTA) communications with one or more UEs 104. In some specific implementations, the real-time and non-real-time aspects of control plane and user plane communications with the RU 140 may be controlled by the corresponding DU 130. In some scenarios, this configuration enables the implementation of the DU 130 and CU 110 in cloud-based RAN architectures such as vRAN architectures.
[0045] SMO framework 105 can be configured to support RAN deployment and provisioning of both non-virtualized and virtualized network elements. For non-virtualized network elements, SMO framework 105 can be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via operation and maintenance interfaces such as the O1 interface. For virtualized network elements, SMO framework 105 can be configured to interact with a cloud computing platform such as Open Cloud (O-Cloud) 190 to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface such as the O2 interface. Such virtualized network elements may include, but are not limited to, CU 110, DU 130, RU 140, and near-RT RIC 125. In some implementations, SMO framework 105 can communicate with hardware aspects of the 4G RAN, such as Open eNB (O-eNB) 111, via the O1 interface. Additionally, in some implementations, SMO framework 105 can communicate directly with one or more RU 140s via the O1 interface. SMO framework 105 may also include a non-RT RIC 115 configured to support the functionality of SMO framework 105.
[0046] The non-RT RIC 115 can be configured to include logical functions enabling non-real-time control and optimization of RAN elements and resources, including artificial intelligence (AI) / machine learning (ML) workflows for model training and updates, or policy-based guidance for applications / features in the near-RT RIC 125. The non-RT RIC 115 can be coupled to or communicate with the near-RT RIC 125, such as via an A1 interface. The near-RT RIC 125 can be configured to include logical functions enabling near real-time control and optimization of RAN elements and resources via data collection and actions through an interface such as an E2 interface, connecting one or more CU 110s, one or more DU 130s, or both, and O-eNBs to the near-RT RIC 125.
[0047] In some implementations, to generate AI / ML models to be deployed in the near-RT RIC 125, the non-RT RIC 115 may receive parameters or external enrichment information from an external server. This information can be utilized by the near-RT RIC 125 and can be received from non-network data sources or network functions at the SMO framework 105 or the non-RT RIC 115. In some examples, the non-RT RIC 115 or the near-RT RIC 125 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 115 may monitor long-term trends and patterns in performance and use AI / ML models to perform corrective actions via the SMO framework 105 (such as reconfiguration via O1) or by creating RAN management policies (such as A1 policies).
[0048] At least one of CU 110, DU 130, and RU 140 may be referred to as base station 102. Therefore, base station 102 may include one or more of CU 110, DU 130, and RU 140 (each component is indicated by a dashed line to indicate whether each component may or may not be included in base station 102). Base station 102 provides UE 104 with an access point to core network 120. Base station 102 may include macro cells (high-power cellular base stations) and / or small cells (low-power cellular base stations). Small cells include femtocells, picocells, and microcells. A network that includes both small cells and macro cells may be referred to as a heterogeneous network. A heterogeneous network may also include an evolved home node B (eNB) (HeNB), which can provide service to a restricted group referred to as a closed subscriber group (CSG). The communication link between RU140 and UE 104 may include uplink (UL) transmission (also known as reverse link) from UE 104 to RU 140 and / or downlink (DL) transmission (also known as forward link) transmission from RU 140 to UE 104. The communication link may utilize multiple-input multiple-output (MIMO) antenna techniques, including spatial multiplexing, beamforming, and / or transmit diversity. The communication link may use one or more carriers. For each direction, the total number of carriers used for transmission can be up to [number missing]. Yx MHz ( x For each carrier allocated in carrier aggregation (of component carriers), base station 102 / UE 104 can use up to [number] carriers. Y A spectrum with a bandwidth of MHz (e.g., 5MHz, 10MHz, 15MHz, 20MHz, 100MHz, 400MHz, etc.). Carriers may be adjacent to each other or not. Carrier allocation may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated to DL compared to UL). Component carriers may include primary component carriers and one or more secondary component carriers. The primary component carrier may be referred to as the primary cell (PCell) and the secondary component carrier may be referred to as the secondary cell (SCell).
[0049] Some UEs 104 can communicate with each other using device-to-device (D2D) communication link 158. D2D communication link 158 can use DL / UL wireless wide area network (WWAN) spectrum. D2D communication link 158 can use one or more sidelink channels, such as Physical Sidelink Broadcast Channel (PSBCH), Physical Sidelink Discovery Channel (PSDCH), Physical Sidelink Shared Channel (PSSCH), and Physical Sidelink Control Channel (PSCCH). D2D communication can be performed through various wireless D2D communication systems, such as Bluetooth. ™ (Bluetooth is a trademark of the Bluetooth Special Interest Group (SIG), and is based on the IEEE 802.11 standard for Wi-Fi.) ™(Wi-Fi is a trademark of the Wi-Fi Alliance), LTE, or NR.
[0050] The wireless communication system may also include a Wi-Fi AP 150, which communicates with the UE 104 (also referred to as a Wi-Fi station (STA)) via a communication link 154, for example, in an unlicensed spectrum such as 5 GHz. When communicating in unlicensed spectrum, the UE 104 / AP 150 may perform a free channel assessment (CCA) to determine whether a channel is available before communication.
[0051] The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc., based on frequency / wavelength. In 5G NR, two initial operating bands have been designated as frequency ranges FR1 (410MHz to 7.125GHz) and FR2 (24.25GHz to 52.6GHz). Although a portion of FR1 is greater than 6GHz, in various documents and articles, FR1 is often (interchangeably) referred to as the "sub-6GHz" band. Similar naming issues sometimes occur with FR2, which is often (interchangeably) referred to as the "millimeter wave" band in documents and articles, although this is distinct from the Extremely High Frequency (EHF) band (30GHz to 300GHz) designated as "millimeter wave" by the International Telecommunication Union (ITU).
[0052] The frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR studies have designated the operating bands for these mid-band frequencies as the frequency range designation FR3 (7.125 GHz to 24.25 GHz). Bands falling within FR3 can inherit FR1 and / or FR2 characteristics, thus effectively extending the features of FR1 and / or FR2 to mid-band frequencies. Furthermore, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been designated as the frequency range designations FR2-2 (52.6 GHz to 71 GHz), FR4 (71 GHz to 114.25 GHz), and FR5 (114.25 GHz to 300 GHz). Each of these higher bands falls within the EHF band.
[0053] In view of the above, unless otherwise specified, the term "below 6 GHz" as used herein can broadly refer to frequencies less than 6 GHz, within FR1, or including intermediate frequency band frequencies. Furthermore, unless otherwise specified, the term "millimeter wave" as used herein can broadly refer to frequencies that can include intermediate frequency band frequencies, within FR2, FR4, FR2-2 and / or FR5, or within the EHF band.
[0054] Base station 102 and UE 104 may each include multiple antennas (such as antenna elements, antenna panels, and / or antenna arrays) to facilitate beamforming. Base station 102 may transmit beamformed signals 182 to UE 104 in one or more transmit directions. UE 104 may receive beamformed signals from base station 102 in one or more receive directions. UE 104 may also transmit beamformed signals 184 to base station 102 in one or more transmit directions. Base station 102 may receive beamformed signals from UE 104 in one or more receive directions. Base station 102 / UE 104 may perform beamforming training to determine the optimal receive and transmit directions for each of base station 102 / UE 104. The transmit and receive directions of base station 102 may be the same or different. The transmit and receive directions of UE 104 may be the same or different.
[0055] Base station 102 may include and / or be referred to as gNB, Node B, eNB, access point, base transceiver, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP, network node, network entity, network equipment, or some other suitable terminology. Base station 102 may be implemented as an integrated access and backhaul (IAB) node, relay node, sidelink node, aggregated (monolithic) base station with baseband units (BBU) (including CU and DU) and RU, or may be implemented as a decomposed base station including one or more of CU, DU, and / or RU. A collection of base stations that may include decomposed base stations and / or aggregated base stations may be referred to as Next Generation (NG) RAN (NG-RAN).
[0056] The core network 120 may include Access and Mobility Management Function (AMF) 161, Session Management Function (SMF) 162, User Plane Function (UPF) 163, Unified Data Management (UDM) 164, one or more location servers 168, and other functional entities. AMF 161 is the control node that handles signaling between UE 104 and the core network 120. AMF 161 supports registration management, connection management, mobility management, and other functions. SMF 162 supports session management and other functions. UPF 163 supports packet routing, packet forwarding, and other functions. UDM 164 supports authentication and key agreement (AKA) credential generation, user identity processing, access authorization, and subscription management. One or more location servers 168 are exemplified as including a Gateway Mobile Location Center (GMLC) 165 and a Location Management Function (LMF) 166. However, generally, one or more location servers 168 may include one or more location / positioning servers, which may include one or more of GMLC 165, LMF 166, Position Determination Entity (PDE), Serving Mobile Location Center (SMLC), Mobile Location Center (MPC), etc. GMLC 165 and LMF 166 support UE location services. GMLC 165 provides an interface for clients / applications (e.g., emergency services) to access UE location information. LMF 166 receives measurement and auxiliary information from NG-RAN and UE 104 via AMF 161 to calculate the location of UE 104. NG-RAN may use one or more positioning methods to determine the location of UE 104. Positioning UE 104 may involve signal measurement, location estimation, and optional speed calculation based on these measurements. Signal measurement may be performed by UE 104 and / or base station 102 serving UE 104. The measured signals may be based on one or more of the following: Satellite Positioning System (SPS) 170 (e.g., one or more of Global Navigation Satellite System (GNSS), Global Positioning System (GPS), Non-Terrestrial Network (NTN) or other satellite positioning / location systems), LTE signals, Wireless Local Area Network (WLAN) signals, Bluetooth signals, Terrestrial Beacon System (TBS), sensor-based information (e.g., barometric pressure sensor, motion sensor), NR Enhanced Cell ID (NR E-CID) method, NR signals (e.g., multiple round-trip time (multiple RTT), DL departure angle (DL-AoD), DL time difference of arrival (DL-TDOA), UL time difference of arrival (UL-TDOA), and UL angle of arrival (UL-AoA) positioning) and / or other systems / signals / sensors.
[0057] Examples of UE 104 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, GPS devices, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablet devices, smart devices, wearable devices, vehicles, electricity meters, air pumps, large or small kitchen appliances, healthcare devices, implants, sensors / actuators, displays, or any other similarly functional device. Some UEs in UE 104 may be referred to as IoT devices (e.g., parking meters, air pumps, toasters, vehicles, heart monitors, etc.). UE 104 may also be referred to as a station, mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, mobile phone, user agent, mobile client, client, or some other suitable terminology. In some scenarios, the term UE may also be applied to one or more companion devices, such as in a device constellation arrangement. One or more of these devices may access the network together and / or individually.
[0058] Refer again Figure 1 In some aspects, UE 104 may include a power component 198. In some aspects, the power component 198 may be configured to configure at least one maximum transmit power at the UE based on a Total Maximum Allowable Exposure (MPE). In some aspects, the power component 198 may be further configured to transmit at least one uplink transmission to a network entity based on the at least one maximum transmit power and a set of power control parameters associated with a set of TRPs or a set of panels, wherein each power control parameter in the set of power control parameters is associated with a corresponding TRP in the set of TRPs or a corresponding panel in the set of panels.
[0059] While the following description may focus on 5G NR, the concepts described herein may be applicable to other similar areas, such as LTE, LTE-A, CDMA, GSM, and other wireless technologies.
[0060] As described herein, a node (which may be referred to as a node, network node, network entity, or wireless node) may include, may be included in, or may be a component of: a base station (e.g., any base station described herein), a UE (e.g., any UE described herein), a network controller, apparatus, device, computing system, integrated access and backhaul (IAB) node, distributed unit (DU), central unit (CU), remote / radio unit (RU) (which may also be referred to as a remote radio unit (RRU)), and / or another processing entity configured to perform any of the techniques described herein. For example, a network node may be a UE. As another example, a network node may be a base station or a network entity. As yet another example, a first network node may be configured to communicate with a second or third network node. In one aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a UE. In another aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a base station. In still other aspects of this example, the first network node, the second network node, and the third network node may be different from these examples. Similarly, references to UE, base station, device, equipment, computing system, etc., may include disclosures of UE, base station, device, equipment, computing system, etc., as network nodes. For example, a disclosure of a UE being configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node. Consistent with this disclosure, once a particular example is extended according to this disclosure (e.g., a disclosure of a UE being configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node), a broader example of a narrower example may be interpreted in reverse, but in a broad, open-ended manner. In the above example where a UE is configured to receive information from a base station and a first network node is configured to receive information from a second network node, the first network node may refer to a first UE, a first base station, a first device, a first equipment, a first computing system, a first set of one or more components, or a first processing entity, etc., configured to receive information; and the second network node may refer to a second UE, a second base station, a second device, a second equipment, a second computing system, a second set of one or more components, or a second processing entity, etc.
[0061] As described herein, different terms may be used in various contexts to describe the transmission of information (e.g., any information, signal, etc.). Disclosure of one communication term includes disclosure of other communication terms. For example, a first network node may be described as being configured to send information to a second network node. In this example and consistent with this disclosure, disclosure that a first network node is configured to send information to a second network node includes disclosure that the first network node is configured to provide, transmit, output, communicate, or send information to the second network node. Similarly, in this example and consistent with this disclosure, disclosure that a first network node is configured to send information to a second network node includes disclosure that the second network node is configured to receive, obtain, or decode information provided, transmitted, output, communicate, or sent by the first network node.
[0062] Figure 2A Figure 200 illustrates an example of the first subframe within a 5G NR frame structure. Figure 2B Figure 230 illustrates an example of a DL channel within a 5G NR subframe. Figure 2C Figure 250 is an example of a second subframe within a 5G NR frame structure. Figure 2D Figure 280 illustrates an example of a UL channel within a 5G NR subframe. The 5G NR frame structure can be Frequency Division Duplex (FDD) (where subframes within a specific set of subcarriers (carrier system bandwidth) are dedicated to either DL or UL) or Time Division Duplex (TDD) (where subframes within a specific set of subcarriers (carrier system bandwidth) are dedicated to both DL and UL). Figure 2A , Figure 2C In the provided example, the 5G NR frame structure is assumed to be TDD, where subframe 4 is configured with slot format 28 (most of which are DL), where D is DL, U is UL, and F is flexible between DL / UL, and subframe 3 is configured with slot format 1 (all of which are UL). Although subframes 3 and 4 are shown as having slot formats 1 and 28 respectively, any particular subframe can be configured with any of the various available slot formats 0-61. Slot formats 0 and 1 are both DL and UL, respectively. Other slot formats 2-61 include a mixture of DL, UL, and flexible symbols. The slot format is configured for the UE via the received Slot Format Indicator (SFI) (dynamically configured via DL Control Information (DCI) or semi-statically / statically configured via Radio Resource Control (RRC) signaling). Note that the following description also applies to the 5G NR frame structure as TDD.
[0063] Figures 2A to 2DThe frame structure is illustrated, and aspects of this disclosure are applicable to other wireless communication technologies that may have different frame structures and / or different channels. A frame (10 ms) can be divided into 10 equal-sized subframes (1 ms). Each subframe may include one or more time slots. Subframes may also include micro-time slots, which may include 7, 4, or 2 symbols. Each time slot may include 14 or 12 symbols, depending on whether the cyclic prefix (CP) is normal or extended. For normal CP, each time slot may include 14 symbols, and for extended CP, each time slot may include 12 symbols. Symbols on the DL may be CP Orthogonal Frequency Division Multiplexing (OFDM) (CP-OFDM) symbols. Symbols on the UL may be CP-OFDM symbols (for high-throughput scenarios) or Discrete Fourier Transform (DFT) Extended OFDM (DFT-s-OFDM) symbols (for power-constrained scenarios; limited to single-stream transmission). The number of time slots within a subframe is based on the CP and a parameter set. The parameter set defines the subcarrier spacing (SCS) (see Table 1). The symbol length / duration can be scaled by 1 / SCS.
[0064] Table 1: Parameter Set, SCS, and CP For a normal CP (14 symbols / slot), different parameter sets µ 0 through 4 allow 1, 2, 4, 8, and 16 slots per subframe, respectively. For an extended CP, parameter set 2 allows 4 slots per subframe. Therefore, for a normal CP and parameter set µ, there are 14 symbols / slot and 2... µ One time slot / subframe. Subcarrier spacing can be equal to ,in The parameter sets are 0 to 4. Therefore, the subcarrier spacing is 15 kHz for parameter set µ=0 and 240 kHz for parameter set µ=4. The symbol length / duration is negatively correlated with the subcarrier spacing. Figures 2A to 2D Examples of a normal frequency division multiplexing (CP) with 14 symbols per time slot and a parameter set of µ=2 with 4 time slots per subframe are provided. The time slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs. Within the frame set, there may be one or more distinct bandwidth portions (BWPs) of frequency division multiplexing (see [link to relevant documentation]). Figure 2B Each BWP can have a specific set of parameters and CP (normal or extended).
[0065] A resource grid can be used to represent the frame structure. Each time slot consists of a resource block (RB) extending for 12 consecutive subcarriers (also known as a physical RB (PRB)). The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.
[0066] like Figure 2A As illustrated, some of the REs carry reference (pilot) signals (RS) for the UE. RS may include demodulation RS (DM-RS) (indicated as R for a particular configuration, but other DM-RS configurations are possible) and channel state information reference signals (CSI-RS) for channel estimation at the UE. RS may also include beam measurement RS (BRS), beam refinement RS (BRRS), and phase tracking RS (PT-RS).
[0067] Figure 2B Examples of various DL channels within a subframe of a frame are illustrated. The Physical Downlink Control Channel (PDCCH) carries the DCI within one or more Control Channel Elements (CCEs) (e.g., 1, 2, 4, 8, or 16 CCEs), each CCE comprising six RE Groups (REGs), each REG comprising 12 consecutive REs in the OFDM symbol of the RB. A PDCCH within a BWP can be referred to as a Control Resource Set (CORESET). The UE is configured to monitor PDCCH candidates in a PDCCH search space (e.g., a common search space, a UE-specific search space) during PDCCH monitoring timing on the CORESET, where the PDCCH candidates have different DCI formats and different aggregation levels. Additional BWPs may be located at higher and / or lower frequencies on the channel bandwidth. The Primary Synchronization Signal (PSS) may be located within symbol 2 of a specific subframe of the frame. The PSS is used by the UE 104 to determine subframe / symbol timing and physical layer identification. The Secondary Synchronization Signal (SSS) may be located within symbol 4 of a specific subframe of the frame. The SSS is used by the UE to determine the Physical Layer Cell Identifier Group Number and radio frame timing. Based on the Physical Layer Identifier and the Physical Layer Cell Identifier Group Number, the UE can determine the Physical Cell Identifier (PCI). Based on the PCI, the UE can determine the location of the DM-RS. The Physical Broadcast Channel (PBCH), carrying the Master Information Block (MIB), can be logically grouped with the PSS and SSS to form a Synchronization Signal (SS) / PBCH block (also known as an SS block (SSB)). The MIB provides the number of RBs in the system bandwidth and the System Frame Number (SFN). The Physical Downlink Shared Channel (PDSCH) carries user data, broadcast system information not transmitted via the PBCH (such as System Information Block (SIB)), and paging messages.
[0068] like Figure 2CAs illustrated, some REs in the REs carry DM-RS (indicated as R for one particular configuration, but other DM-RS configurations are possible) for channel estimation at the base station. The UE can transmit DM-RS for the Physical Uplink Control Channel (PUCCH) and DM-RS for the Physical Uplink Shared Channel (PUSCH). The PUSCH DM-RS can be transmitted in the first or first two symbols of the PUSCH. Depending on whether a short or long PUCCH is transmitted and depending on the specific PUCCH format used, the PUCCH DM-RS can be transmitted in different configurations. The UE can transmit a Sounding Reference Signal (SRS). The SRS can be transmitted in the last symbol of a subframe. The SRS can have a comb structure, and the UE can transmit the SRS on one of the comb teeth. The SRS can be used by the base station for channel quality estimation to enable frequency-dependent scheduling of the UL.
[0069] Figure 2D Examples of various UL channels within a subframe of a frame are illustrated. The PUCCH may be located as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicators (CQI), pre-decoding matrix indicators (PMI), rank indicators (RI), and hybrid automatic repeat request (HARQ) acknowledgment (ACK) (HARQ-ACK) feedback (i.e., one or more HARQ ACK bits indicating one or more ACKs and / or negative ACKs (NACKs)). The PUCCH carries data and may additionally be used to carry buffer status reports (BSR), power clearance reports (PHR), and / or UCIs.
[0070] Figure 3This is a block diagram illustrating communication between base station 310 and UE 350 in the access network. In the DL, Internet Protocol (IP) packets can be provided to controller / processor 375. Controller / processor 375 implements Layer 3 and Layer 2 functionality. Layer 3 includes the Radio Resource Control (RRC) layer, and Layer 2 includes the Service Data Adaptation Protocol (SDAP) layer, Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer, and Media Access Control (MAC) layer. The controller / processor 375 provides RRC layer functionality associated with broadcasting system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-Radio Access Technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functionality associated with header compression / decompression, security (encryption, decryption, integrity protection, integrity verification), and handover support functions; RLC layer functionality associated with the delivery of upper-layer packet data units (PDUs), error correction via ARQ, concatenation, segmentation, and reassembly of RLC service data units (SDUs), resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction via HARQ, priority handling, and logical channel priority ordering.
[0071] Transmit (TX) processor 316 and receive (RX) processor 370 implement Layer 1 functionality associated with various signal processing functions. Layer 1 (which includes the physical (PHY) layer) may include error detection on the transport channel, forward error correction (FEC) decoding / decoding of the transport channel, interleaving, rate matching, mapping to the physical channel, modulation / demodulation of the physical channel, and MIMO antenna processing. TX processor 316 processes the mapping to the signal constellation based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-order phase shift keying (M-PSK), M-order quadrature amplitude modulation (M-QAM)). The decoded and modulated symbols can then be divided into parallel streams. Each stream can then be mapped to OFDM subcarriers, multiplexed with a reference signal (e.g., a pilot) in the time and / or frequency domains, and then combined using inverse fast Fourier transform (IFFT) to produce a physical channel carrying a stream of time-domain OFDM symbols. The OFDM stream undergoes spatial pre-decoding to generate multiple spatial streams. Channel estimates from channel estimator 374 can be used to determine decoding and modulation schemes, as well as for spatial processing. Channel estimates can be derived from reference signals and / or channel condition feedback transmitted by UE 350. Each spatial stream can then be provided to a different antenna 320 via a separate transmitter 318Tx. Each transmitter 318Tx can utilize the corresponding spatial stream to modulate a radio frequency (RF) carrier for transmission.
[0072] At UE 350, each receiver 354Rx receives signals via its corresponding antenna 352. Each receiver 354Rx recovers the information modulated onto the RF carrier and provides that information to the receive (RX) processor 356. The TX processor 368 and RX processor 356 implement Layer 1 functionality associated with various signal processing functions. The RX processor 356 can perform spatial processing on the information to recover any spatial stream destined for UE 350. If multiple spatial streams are destined for UE 350, the RX processor 356 can combine them into a single OFDM symbol stream. The RX processor 356 then uses a Fast Fourier Transform (FFT) to transform the OFDM symbol stream from the time domain to the frequency domain. The frequency domain signal consists of a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier, along with the reference signal, are recovered and demodulated by determining the most probable signal constellation points transmitted by base station 310. These soft decisions can be based on channel estimates calculated by channel estimator 358. The soft decision is then decoded and deinterleaved to recover the data and control signals originally transmitted by base station 310 on the physical channel. The data and control signals are then provided to controller / processor 359, which implements layer 3 and layer 2 functionality.
[0073] The controller / processor 359 may be associated with at least one memory 360 storing program code and data. The at least one memory 360 may be referred to as a computer-readable medium. In the UL, the controller / processor 359 provides demultiplexing, packet reassembly, decryption, header decompression, and control signal processing between transport and logical channels to recover IP packets. The controller / processor 359 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.
[0074] Similar to the functionality described in conjunction with DL transmission performed by base station 310, controller / processor 359 provides RRC layer functionality associated with system information (e.g., MIB, SIB) acquisition, RRC connectivity, and measurement reporting; PDCP layer functionality associated with header compression / decompression and security (encryption, decryption, integrity protection, integrity verification); RLC layer functionality associated with upper-layer PDU delivery, error correction via ARQ, concatenation, segmentation, and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction via HARQ, priority handling, and logical channel priority ordering.
[0075] The TX processor 368 can use the channel estimate derived from the reference signal or feedback transmitted by the channel estimator 358 from the base station 310 to select an appropriate decoding and modulation scheme and facilitate spatial processing. The spatial stream generated by the TX processor 368 can be provided to different antennas 352 via individual transmitters 354Tx. Each transmitter 354Tx can use the corresponding spatial stream to modulate an RF carrier for transmission.
[0076] UL transmission is processed at base station 310 in a manner similar to that described in conjunction with the receiver function at UE 350. Each receiver 318Rx receives signals via its respective antenna 320. Each receiver 318Rx recovers the information modulated onto the RF carrier and provides that information to RX processor 370.
[0077] The controller / processor 375 may be associated with at least one memory 376 storing program code and data. The at least one memory 376 may be referred to as a computer-readable medium. In the UL, the controller / processor 375 provides demultiplexing, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets between transport and logical channels. The controller / processor 375 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.
[0078] At least one of the TX processor 368, RX processor 356, and controller / processor 359 can be configured to perform coupling. Figure 1 The power components of 198 are in various aspects.
[0079] Figure 4 This is diagram 400 illustrating communication between base station 402 and UE 404. (See reference) Figure 4 Base station 402 may transmit beamforming signals to UE 404 in one or more of the following directions: 402a, 402b, 402c, 402d, 402e, 402f, 402g, and 402h. UE 404 may receive beamforming signals from base station 402 in one or more receiving directions: 404a, 404b, 404c, and 404d. UE 404 may also transmit beamforming signals to base station 402 in one or more of the following directions: 404a-404d. Base station 402 may receive beamforming signals from UE 404 in one or more receiving directions: 402a-402h. Base station 402 and UE 404 may perform beamforming training to determine the optimal receiving and transmitting directions for each of base station 402 and UE 404. The transmitting and receiving directions of base station 402 may be the same or different. The transmitting and receiving directions of UE 404 may be the same or different. The term beamforming can also be referred to as "spatial filter".
[0080] In response to different conditions, UE 404 may determine, for example, to switch beams between beams 402a-402h. The beam at UE 404 can be used for receiving downlink communications and / or transmitting uplink communications. In some examples, base station 402 may transmit a signal that triggers beam switching for UE 404. The TCI state may include quasi-co-located (QCL) information, which the UE can use to derive timing / frequency errors and / or transmit / receive spatial filtering for transmitted / received signals. Two antenna ports are said to be quasi-co-located if the properties of a channel transmitting symbols on one antenna port can be inferred from a channel transmitting symbols on another antenna port. The base station may indicate the TCI state to the UE as a transmit configuration indicating the QCL relationship between a signal (e.g., a reference signal) and the signal to be transmitted / received. For example, the TCI state may indicate the QCL relationship between a DL RS in an RS set and a PDSCH / PDCCH DM-RS port. The TCI state can provide information about the different beam selections the UE uses to transmit / receive various signals. For example, base station 402 may indicate a change in TCI state, and in response, UE 404 may switch to a new beam according to the new TCI state indicated by base station 402.
[0081] In some wireless communication systems, such as those under a unified TCI framework, a joint DL / UL TCI state pool can be used for joint DL / UL TCI state updates for beam indication. For example, base station 402 can send a joint DL / UL TCI state pool to UE 404. UE 404 can determine the switching of transmit and / or receive beams based on the joint DL / UL TCI state. In some aspects, TCI state pools for separate DL TCI state updates and UL TCI state updates can be used. In some aspects, base station 402 can use RRC signaling to configure the TCI state pool. In some aspects, the joint TCI may or may not include UL-specific parameters, such as UL PC / timing parameters, PL RS, or panel-related indications. If the joint TCI includes UL-specific parameters, these parameters can be used for UL transmission in the DL and UL transmissions to which the joint TCI is applied.
[0082] Within the unified TCI framework, different types of common TCI states can be indicated. For example, Type 1 TCI can be a joint DL / UL common TCI state to indicate a common beam for at least one DL channel or RS and at least one UL channel or RS. Type 2 TCI can be a separate DL (e.g., separate from UL) common TCI state to indicate a common beam for more than one DL channel or RS. Type 3 TCI can be a separate UL common TCI state to indicate a common beam for more than one UL channel / RS. Type 4 TCI can be a separate DL single-channel or RS TCI state to indicate a beam for a single DL channel or RS. Type 5 TCI can be a separate UL single-channel or RS TCI state to indicate a beam for a single UL channel or RS. Type 6 TCI may include UL spatial relation information (e.g., such as a Sound Reference Signal (SRS) Resource Indicator (SRI)) to indicate a beam for a single UL channel or RS. Example RSs can be SSBs, tracking reference signals (TRS) and associated CSI-RSs for tracking, CSI-RSs for beam management, CSI-RSs for CQI management, DM-RSs associated with non-UE-specific reception on the PDSCH, and subsets of control resource sets (CORESETs) (which can be the entire set), etc.
[0083] A TCI state can be defined as indicating that at least one source RS provides a reference (e.g., a UE assumption) for determining quasi-co-location (QCL) or spatial filtering. For example, a TCI state can define a QCL assumption between a source RS and a target RS.
[0084] To accommodate separate beam indication for UL and DL, two separate TCI states (one for DL and one for UL) can be utilized. For a separate DL TCI, source reference signals in M (M being an integer) TCIs provide QCL information for UE-specific reception on the PDSCH and for UE-specific reception on all CORESETs or subsets thereof in the CC. For a separate UL TCI, source reference signals in N (N being an integer) TCIs provide a reference for determining the common UL transmit (TX) spatial filter for at least the PUSCH based on dynamic grant or configuration grant and all dedicated PUCCH resources or subsets thereof in the CC.
[0085] In some respects, the UL TX spatial filter can also be applied to all SRS resources in a resource set configured for antenna switching, codebook-based or non-codebook-based UL transmission.
[0086] In some respects, each of the following DL RSs may share the same indicated TCI state as the UE-specific reception on the PDSCH and all or a subset of the CORESET in the CC: CSI-RS resources for CSI, some or all of the CSI-RS resources for beam management, CSI-RS for tracking, and DM-RS associated with all / a subset of the UE-specific reception on the PDSCH and CORESET. Some SRS resources or resource sets for beam management may share the same indicated TCI state as all or a subset of the dedicated PUCCH resources in the PUSCH based on dynamic grant / configuration grant or the CC. In some wireless communication systems, several QCL rules may be defined. For example, a first rule may define that the TCI of the DM-RS to the UE-specific PDSCH and PDCCH may not have an SSB as the source RS to provide QCL type D information. A second rule may define that the TCI of some DL RSs (such as CSI-RS) may have an SSB as the source RS to provide QCL type D information. The third rule defines that the TCI of some UL RSs (such as SRSs) can have an SSB as the source RS to provide spatial filter information. The example aspects provided in this paper enable the UE to signal the ability to apply a unified TCI to the RS, provide QCL indication to the DL RS, and provide hybrid spatial filter indication to the UL RS.
[0087] In some wireless communication systems, several configurations can be provided to facilitate the updating and activation of public TCI state IDs to provide public QCL information for at least UE-specific PDCCH / PDSCH (e.g., public for both UE-specific PDCCH and UE-specific PDSCH) or public UL TX spatial filters for at least UE-specific PUSCH / PUCCH across a set of CC / BWP configurations (e.g., public for multiple PUSCH / PUCCH across CC / BWP configurations). For example, the TCI state pool of the RRC configuration can be configured as part of the PDSCH configuration for each BWP or CC (such as in the PDSCH-Config parameters). The TCI state pool of the RRC configuration may not exist in the PDSCH configuration for each BWP / CC and can be replaced by a reference to the TCI state pool of the RRC configuration in a reference BWP / CC. For a BWP / CC in which the PDSCH configuration includes a reference to the TCI state pool of the RRC configuration in a reference BWP / CC, the UE can apply the TCI state pool of the RRC configuration in the reference BWP / CC. When a BWP / CC identifier (ID) for a QCL type A or type D source RS (e.g., for the cell) is not present in the QCL information of the TCI state (such as in the QCL information parameters), the UE may assume that the QCL type A or type D source RS is in the BWP / CC applied to the TCI state. Additionally, the UE may report UE capabilities indicating the maximum number of TCI state pools supported by the UE across frequency bands for BWPs and CCs.
[0088] Before receiving a TCI state, the UE may assume that the antenna ports of a DM-RS port group of the PDSCH are in spatial QCL with the SSB determined during initial access with respect to one or more of the following: Doppler shift, Doppler spread, average delay, delay spread, and a set of spatial Rx parameters. After receiving a new TCI state, the UE may assume that the antenna ports of a DM-RS port group of the serving cell's PDSCH are in QCL with the RSs in the RS set for the QCL type parameters given by the indicated TCI state. Regarding the QCL type, QCL type A may include Doppler shift, Doppler spread, average delay, and delay spread; QCL type B may include Doppler shift and Doppler spread; QCL type C may include Doppler shift and average delay; and QCL type D may include spatial Rx parameters (e.g., associated with beamforming properties such as those used to find the beam). In some respects, the maximum number of TCI states may be 128.
[0089] In some respects, the UE can receive signals from the base station. These signals can be configured to trigger a TCI state change and can be received via, for example, a Medium Access Control (MAC) Control Element (CE) (MAC-CE), Downlink Control Information (DCI), or Radio Resource Control (RRC) signals. A TCI state change allows the UE to find the best or most suitable UE receive beam corresponding to the TCI state indicated by the base station and switch to such a beam. Beam switching allows for enhanced or improved connectivity between the UE and the base station by ensuring that the transmitter and receiver communicate using the same configured beam set.
[0090] In some respects, changes in spatial relationships (such as spatial relationship updates) can trigger a UE to switch beams. Beamforming can be applied to uplink channels such as PUSCH, PUCCH, or SRS. Beamforming can be based on configuring one or more spatial relationships between uplink and downlink signals. Spatial relationships indicate that the UE can use the same beam used to receive the corresponding downlink signal to transmit uplink signals.
[0091] On the other hand, base station 402 can indicate a change in PL RS, which the UE can use to determine power control for uplink transmissions (such as PUSCH, PUCCH, or SRS). In response to the change in PL RS, UE 404 can determine to switch to a new beam.
[0092] Some wireless communication systems can use codebook-based MIMO. MIMO systems allow multiple independent radio terminals, each with one or more antennas, to communicate with a given access point in a manner that allows each terminal to simultaneously utilize all spectrum resources. MIMO systems (such as base station 402) can employ processes such as pre-decoding to address interference between signals simultaneously transmitted from the access point to multiple terminals in the same frequency band.
[0093] In codebook-based MIMO wireless communication systems, pre-decoding can be selected from a standardized codebook. In non-codebook-based MIMO, such a codebook may not exist, and pre-decoding can be determined dynamically. For some non-codebook-based MIMO in the PUSCH, the SRI field in the DCI can indicate the set of pre-decoders associated with a set of SRS resource sets and power control (PC) parameters, which may include P0, α, a closed-loop index (which may be referred to as the "Closedloopindex") (which may be denoted by m), or PL RS, etc. P0 may represent the base station received power per resource block assuming a path loss of 0 dB. α may represent a possible value for uplink power control (e.g., a path loss compensation factor). The closed-loop index may be the index of the closed power control loop associated with the SRI and the associated PUSCH. The beam of the PUSCH may follow the SRS resource set. For example, all SRSs in the same SRS resource set may have the same beam, and the SRI may not select a beam.
[0094] For some codebook-based MIMO in PUSCH, the SRI field in DCI can select an SRS resource from multiple SRS in the SRS resource set to determine the beam used for PUSCH transmission. For example, different SRS selected by SRI in the SRS resource set can have different beams. The pre-decoder matrix indicator (TPMI) transmitted in DCI can indicate the pre-decoder, and the SRI field can indicate a set of power control parameters, which may also include P0, α, Closedloopindex, or PL RS, etc.
[0095] For PC parameters that are not PL RS (e.g., P0, α, and closedloopindex), for each of PUSCH, PUCCH, and SRS, one or more of the following settings can be selected or combined: 1) the settings for (P0, α, closedloopindex) can be associated with the UL or (if applicable) joint TCI state; 2) the settings for (P0, α, closedloopindex) can be included with the UL or (if applicable) joint TCI state; and 3) the settings for (P0, α, closedloopindex) can be neither associated with nor included in the UL or (if applicable) joint TCI state. The settings for (P0, α, closedloopindex) can be associated with the UL channel or UL RS. Therefore, the settings for PC parameters that are not PL RS can be channel-specific and signal-specific. PL RS settings can be configured differently. For example, PL RS can be included in the UL TCI state (or, if applicable, the joint TCI state). If not included in the UL TCI state, the PL RS can be a periodic DL-RS used as a source RS for determining the spatial TX filter, or a PL RS for the UL RS in the UL or (if applicable) joint TCI state. The PL-RS can also be associated with (but not included in) the UL TCI state (or, if applicable, the joint TCI state). If not associated with the UL TCI state, the PL RS can be a periodic DL-RS used as a source RS for determining the spatial TX filter, or a PL RS for the UL RS in the UL or (if applicable) joint TCI state. The UE can also calculate path loss based on a periodic DL RS configured as a source RS for determining the spatial TX filter in the UL or (if applicable) joint TCI state. In some aspects, if the PL RS is not included in or associated with the UL TCI state (or, if applicable, the joint TCI state), the UE can estimate path loss based on a PL-RS of a UL RS provided in the UL TCI state (or, if applicable, the joint TCI state) as a source RS for determining the spatial TX filter. In some respects, if the PL RS is not included in or associated with the UL TCI state (or, if applicable, the joint TCI state), the UE may not estimate path loss based on the PL-RS of the UL RS, which is provided in the UL TCI state (or, if applicable, the joint TCI state) as a source RS for determining the spatial TX filter. In some respects, the UE may calculate path loss based on a periodic DL RS configured as a source RS in the UL TCI state or (if applicable) the joint TCI state, or a periodic QCL-Type-D / spatialRelationInfo source of that source RS.
[0096] A wireless device may include multiple Transmission Points (TRPs), such as an M-TRP. Each TRP may include different RF modules with shared hardware and / or software controllers. Each TRP may have separate RF processing and digital processing. Each TRP may also perform separate baseband processing. Each TRP may include different antenna panels or different sets of antenna elements for the wireless device. The TRPs of a wireless device may be physically separate. For example, the TRPs on a vehicle's wireless device may be located at different locations on the vehicle. The front antenna panel and the rear antenna panel on the vehicle may be 3 meters, 4 meters, etc., apart. The spacing between TRPs may vary based on the size of the vehicle and / or the number of TRPs associated with the vehicle. Each TRP in a TRP may experience the channel differently (e.g., experience different channel quality) due to differences in physical location, distance between TRPs, different line-of-sight (LOS) characteristics (e.g., LOS channel compared to non-line-of-sight (NLOS) channel), obstructions / obstacles, interference from other transmissions, etc.
[0097] A single DCI (sDCI) can be used to schedule DL or UL channels for multiple TRPs (mTRPs) (e.g., two TRPs). The operation or channel associated with an sDCI used for an mTRP may be referred to as "sDCI mTRP". For example, one DCI can be used to schedule PDSCHs on two different TRPs for a UE.
[0098] In some respects, mDCI can be used for the DL or UL channels of mTRP. The operation or channel associated with an mDCI used for mTRP may be referred to as "mDCI mTRP". For example, two DCIs can be used to schedule PDSCH on two different TRPs for the UE.
[0099] Figure 5Figure 500 illustrates an example in which a first TRP 502 transmits to a UE 504 an sDCI 511 having scheduling information for downlink communications (such as PDSCH or AP CSI-RS) from the first TRP 502 and the second TRP 506. In some aspects, mTRP communications can be scheduled by, for example, multiple DCIs (mDCIs) from different TRPs. For example, Figure 500 also shows an example in which TRP 502 transmits to the UE 504 a DCI 512a (e.g., the first DCI in the mDCI set) scheduling downlink communications (e.g., PDSCH or AP CSI-RS) from TRP 502, and TRP 506 transmits to the UE 504 a DCI 512b (e.g., the second DCI in the mDCI set) scheduling downlink communications from TRP 506. Thus, control and / or data signaling from TRPs can overlap in time, frequency, and / or spatial directions.
[0100] As illustrated in the figure, a first TRP 502 may be associated with a first TCI state 503 (e.g., with a first reference signal QCL), and a second TRP 506 may be associated with a second TCI state 507 (e.g., with a second reference signal QCL). Figure 500 also illustrates that multiple TRPs can be coordinated to multiplex the communication of at least one UE (e.g., UE 504) using time division multiplexing (TDM). TDM may be based on a cyclic mapping in which resources for different TRPs are distributed (e.g., TDM cyclic mapping). In some aspects, TDM may be based on a sequential mapping in which resources for different TRPs are scheduled in contiguous resources (e.g., TDM sequential mapping). For example, for the mDCI example, HARQ ACK / NACK feedback for different TRPs may be based on a single codebook or may be based on different codebooks. In some aspects, PDCCH from multiple TRPs may be transmitted using repetitions with different QCL relationships. In some respects, PUSCH or PUCCH can be repeatedly sent to multiple TRPs in TDM mode, or can be sent simultaneously using spatial division multiplexing (SDM).
[0101] As used herein, the terms “beam” or “spatial filter” can be used to refer to a spatial filter used for transmitting or receiving transmissions. A spatial filter can be applied during transmitting or receiving transmissions, and applying a spatial filter may include applying a beam with the same direction, shape, or power. The RF chain at the transmitter of a network entity (such as a base station) can be one or more modules or components that process a digital signal as input and convert that digital signal into an analog signal, which is ready for transmission to another device by an antenna. As an example, the RF chain may take a digital signal as input, process the digital signal using a digital-to-analog converter, process the output of the digital-to-analog converter using a low-pass filter, perform up-conversion based on a local oscillator, amplify the signal using a power amplifier, filter the signal based on a band-pass filter, and process the signal based on a phase shifter. A network entity (such as a base station) may use an antenna set connected to multiple IQ modulators or IF modulators, and this antenna set may come from different panels or different remote radio head units (RRH) associated with the same network entity. An RRH unit may be a remote radio transceiver connected to an operator’s radio control panel via an electrical or wireless interface. RRH units can be used to extend the scope of a network entity, and different RRH units can be located in different physical locations while being considered part of the same network entity (e.g., the same gNB). During transmission or reception, spatial filters can be applied to one or more panels of a network entity or UE. As used herein, the term "panel" can refer to a physical or virtual entity associated with one or more antenna elements or antenna panels at a UE or base station. In some respects, each panel can be associated with a corresponding spatial filter. In some respects, the corresponding spatial filter associated with a panel can be changed. Each panel can be identified by a panel identifier (ID), which can be an RS resource set ID, an antenna ID, or an antenna group ID.
[0102] For multi-TRP (mTRP) operations (such as a UE transmitting to multiple TRPs associated with a network entity (e.g., simultaneous transmission across multiple panels (STxMP)), a configured MPE value may exist, which can be used to determine the total configured maximum transmit power. The aspects provided in this paper offer mechanisms for determining the configured maximum transmit power for different TRPs and a Power Headroom (PHR) reporting mechanism for reporting the total configured maximum transmit power or the configured maximum transmit power for different TRPs, thereby enabling more efficient power control at the UE.
[0103] In some aspects, a maximum transmit power may exist per TRP or per panel configuration. In some aspects, a total configured maximum transmit power may exist (e.g., per UE) across all UE panels used for STxMP. The maximum transmit power may be configured based on total radiated power (e.g., maximum total radiated power, etc.) or equivalent isotropic radiated power (EIRP) (e.g., maximum EIRP, minimum peak EIRP, spherical coverage EIRP (which may be 50% of the EIRP)). In some aspects, thresholds may be used per power level, per frequency band to determine the maximum transmit power. Parameters of various configurations may affect the power-related operation of the UE, including, for example, uplink power control, PHR, and cross-carrier power prioritization for carrier aggregation (CA). The UE may use or be configured (e.g., a higher layer at the UE may configure a lower layer at the UE) a total configured maximum transmit power per component carrier (CC), which may be represented by the parameter Pcmax,f,c. The parameters Pcmax,f,c can be determined by the UE based on the MPE or other specifications (based on EIRP or total radiated power, etc.). The parameters Pcmax,f,c can be used for UL power control and PHR. The UE can use or be configured (e.g., configure itself with) a total configured maximum transmit power across all CCs, which can be represented by the parameter Pcmax. The parameter Pcmax can be used for power priority ordering in the CA. The parameter Pcmax can be determined by the UE based on the MPE or other specifications (based on EIRP or total radiated power, etc.). In some alternative aspects, the UE can be configured with an indicated transmit power, for example, by receiving a configuration message with an indicated transmit power from a network entity.
[0104] The maximum output power per CC configured by the UE can be used to determine the transmit power for PUSCH, PUCCH, SRS, PRACH, or other transmissions in a given UL CC. The UE can determine (e.g., calculate) the transmit power used for PUSCH, PUCCH, SRS, or PRACH transmissions based on the parameter Pcmax,f,c. For example, if the UE uses index... The parameter set configuration and index are as follows PUSCH power control adjustment status in the serving cell carrier UL BWP activities If the UE sends a PUSCH, then the UE can determine the timing of the PUSCH transmission. PUSCH transmit power in Determined as: [Decibels per milliwatt (dBm)]. Parameter It is the maximum output power configured in the UE or the timing of PUSCH transmission. Service communities carrier .parameter It is composed of components and components The parameters are composed of the sum of , where .parameter This can be α, which can be determined by the UE. Parameter Therefore, it is used to serve the community. carrier UL BWP activities PUSCH sending timing The number of resource blocks represents the bandwidth allocated to the PUSCH resource, and This is the SCS configuration. Parameters It is indexed by the UE using the reference signal (RS). For the service community carrier The downlink path loss estimate in dB calculated by the active DL BWP. For ,parameter (The increment, which can be an offset value configured by the network) can be equal to And for , can be equal to ,in The incremental modulation and decoding scheme (MCS) is used for the serving cell. and each carrier Each UL BWP Provided. Parameters It refers to the timing of PUSCH transmission. Service communities carrier UL BWP activities The PUSCH power control adjustment status.
[0105] As an example, the UE can configure Pcmax,f,c, which can be per component carrier (CC). For example, the UE can configure its maximum output power for the serving cell. c carrier f The configured maximum UE output power Pcmax,f,c can be defined as the maximum output power available for a given transmitter branch at a reference point corresponding to the reference point for higher-layer filtered Reference Received Power (RSRP) measurement. The configured maximum UE output power Pcmax,f,c for carrier f of serving cell c can be set such that the corresponding measured peak EIRP Pumax,f,c is within the following limits: P Powerclass +ΔP IBE - MAX(MAX(MPR f,c A- MPR f,c ,) + ΔMB P,n P-MPR f,c ) - MAX{T(MAX(MPR f,c A- MPR f,c ,)), T(P-MPR f,c )} ≤ P UMAX,f,c ≤ EIRP max In some respects, the corresponding measured total radiated power P TMAX,f,c Can be made by P TMAX,f,c ≤ TRP max To define. Parameter P Powerclass It can be the minimum peak EIRP of the UE. Parameter EIRP max This can be the maximum applicable EIRP. Parameter MPR f,c It can be a service area c carrier f The maximum output power decreases. Parameter A-MPR f,c It can be for the uplink frequency band n The maximum allowable additional power drop based on the maximum output power. Parameter ΔT IB,P,n Peak EIRP relaxation is possible. UE power levels can include several different UE power levels, such as Level 1 for Fixed Wireless Access (FWA) UEs, Level 2 for vehicle UEs, Level 3 for handheld UEs, or Level 4 for high-power handheld UEs, etc. As an example, the minimum peak EIRP for a UE at power level 3 is provided below: Table 2
[0106] A UE configured with carrier aggregation can activate the serving cell for each uplink. c Configure the maximum output power of the UE and its total configured maximum output power P. CMAX The maximum configured power P of the UE during transmission. CMAX It can be generated by all serving cells with non-zero granted power at the corresponding reference point. c carrier f The UL grant determines the maximum output power P of the configured UE. CMAX It should be set to make the corresponding measured total peak value EIRP P UMAX Within the following limits: P Powerclass - MAX(MAX(MPR, A-MPR) + ΔMBP,n , P-MPR) - MAX{T(MAX(MPR, A-MPR)),T(P-MPR)} ≤ P UMAX ≤ EIRP max Parameter P Powerclass It can be the minimum peak EIRP of the UE. Parameter EIRP max This can be the applicable maximum EIRP. The MPR parameter can be the maximum output power drop configured for CA. The A-MPR parameter can be an additional maximum power drop configured for CA. The ΔMB parameter... P,n This could be peak EIRP relaxation. The parameter P-MPR can be a power management term. The measured configuration power P used for carrier aggregation... UMAX It could be: , where p UMAX,f,c It serves the community c carrier f=f(c) The measured power P UMAX,f,c The linear value.
[0107] Figure 6 Figure 600 illustrates example communication between network entity 604 and UE 602 according to various aspects of this disclosure. Figure 6As illustrated, at 606, UE 602 can be configured with a maximum transmit power. In some aspects, at 606, UE 602 can be configured with power control per TRP / panel. In some aspects, UE 602 can also be configured with a maximum transmit power per TRP / panel. In some aspects, the maximum transmit power per TRP / panel power control or per TRP / panel configuration may be based on an identifier k, which may be based on at least one of the following: a TRP identifier (ID) associated with the corresponding TRP, a transmit configuration indicator (TCI) status group ID associated with the corresponding TRP or panel, a transmit power control (TPC) ID associated with the corresponding TRP or panel, a power amplifier ID associated with the corresponding TRP or panel, a path loss reference signal (PLRS) ID associated with the corresponding TRP or panel, a closed-loop index associated with the corresponding TRP or panel, a control resource set (CORESET) pool index associated with the corresponding TRP or panel, a sounding reference signal (SRS) resource set ID associated with the corresponding TRP or panel, a demodulation reference signal (DM-RS) port group ID associated with the corresponding TRP or panel, a resource block allocation set ID associated with the corresponding TRP or panel, or a physical cell ID (PCI) associated with the corresponding TRP or panel, etc. In all power control parameters such as P0, M, α, PL RS, Δ, and power control adjustment state (f), each factor (e.g., power control parameter) may have its own value corresponding to the identifier k. In some aspects, the maximum transmit power per TRP / panel configuration may be expressed as the UL Tx power per TRP configuration. In some respects, the power component per TRP can be limited by the UL Tx power configured per TRP (e.g., not exceeding the UL Tx power configured per TRP), which can be determined by... In other words, it refers to the sum of the two power per TRP Tx (e.g., by...). (This can be limited by the total configured UL Tx power at the cell level.) In some respects, the transmit power per TRP / panel can be expressed in dBm. .
[0108] In some aspects, at 606, UE 602 may also configure a total configured maximum transmit power. For example, instead of configuring power control per TRP / panel and a maximum transmit power configured per TRP / panel, UE 602 may configure power control per TRP / panel and a total configured maximum transmit power (e.g., across all panels / TRPs). In some aspects, the total configured maximum transmit power may be the maximum value of the total power transmitted across all TRPs / panels in the linear domain. In some aspects, the total configured maximum transmit power may be the maximum value of the total power transmitted per cell in the linear domain and may be determined by the cell-level total configured UL Tx power. To limit it. The total configured transmit power can be:
[0109] .
[0110] PUSCH is given as an example, and the transmit power or power control of this configuration can be applied to PUSCH, PUCCH, or other transmits.
[0111] At 608, based on the configured maximum transmit power, the UE can determine the transmit power of the uplink transmission, such as at least two simultaneous uplink transmissions, including a first uplink transmission 612A (e.g., which may be associated with a first TRP / panel) and a second uplink transmission 612B (e.g., which may be associated with a second TRP / panel). In some aspects, the UE can send PHR 610 to network entity 604.
[0112] If UE 602 has already configured a total configured maximum transmit power (e.g., across all panels / TRPs), then at 608, the UE can determine the total configured maximum transmit power for uplink transmission based on (1) a function using two panel-specific MPE values or (2) a total MPE value independent of the two panel-specific MPE values. For example, a function using two panel-specific MPE values can be based on MPE_T = max{MPE_0, MPE_1} to determine the total configured maximum power. In this respect, UE 602 can report two panel-specific MPE values to network entity 604 in PHR 610, and network entity 604 can consider max{MPE_0, MPE_1} as... The MPE value.
[0113] Now for reference Figure 7A , Figure 7A Figure 700 illustrates example transmit power and MPE when two uplinks are transmitting, according to various aspects of this disclosure. Figure 7AAs illustrated, the function representing the total MPE can be MPE_T, which can be the maximum of two panel-specific MPE values, MPE_0 and MPE_1 (e.g., max{MPE_0, MPE_1}).
[0114] In another example, a function using two panel-specific MPE values can be based on MPE_T = MPE_0 + MPE_1 (e.g., the sum of the two panel-specific MPE values). Now refer to Figure 7B , Figure 7B Figure 750 illustrates example transmit power and MPE when two uplinks are transmitting, according to various aspects of this disclosure. Figure 7B As illustrated, the function representing the total MPE can be MPE_T, which can be the sum of two panel-specific MPE values, MPE_0 and MPE_1 (e.g., MPE_T = MPE_0 + MPE_1).
[0115] Now for reference Figure 8 , Figure 8 Figure 800 illustrates example transmit power and MPE when two uplink transmissions are present, according to various aspects of this disclosure. As mentioned herein, in some aspects, the total MPE value, independent of the specific MPE values of the two panels, can be used to determine the total configured maximum transmit power for the uplink transmissions. In some aspects, due to beamforming or panel orientation in different directions, the total configured maximum transmit power may vary. The total MPE value may differ from the transmit power specific to the panel. , The panel-specific MPE value. For example... Figure 8 As illustrated, since the two uplink transmissions are in different directions (e.g., separated by 90 degrees), the maximum transmission power for the total configuration is... The total MPE value may differ from the transmit power specific to the panel. , The panel-specific MPE value. In this respect, UE 602 can report two panel-specific MPE values and the total MPE value to network entity 604 in PHR 610 and network entity 604.
[0116] In some aspects, carrier aggregation (CA) may or may not exist between the first uplink transmission 612A and the second uplink transmission 612B. In some aspects, the UE 602 may be configured (e.g., indicated by network entity 604) to have transmit power associated with the first uplink transmission 612A and the second uplink transmission 612B. However, such transmit power may be inappropriate because the indicated transmit power exceeds (e.g., a function such as the sum of the indicated transmit powers exceeds) the total configured maximum transmit power. In some respects, if UE 602 has already configured a total configured maximum transmit power (e.g., across all panels / TRPs), as part of 608, UE 602 may determine the UL transmit power of the first uplink transmit 612A and the second uplink transmit 612B according to different scenarios, such as the first uplink transmit 612A and the second uplink transmit 612B as follows: (1) using a single STxMP UL channel of two panels in a single CC, such as both the first uplink transmit 612A and the second uplink transmit 612B being Subscriber Data Management (SDM) or Single Frequency Network (SFN) PUSCH; (2) using two UL channels of two panels in a single CC, such as the first uplink transmit 612A and the second uplink transmit 612B being mDCI in the same CC. The two PUSCHs of PUSCH, (3) the first uplink transmission 612A and the second uplink transmission 612B are the first PUSCH in the first CC and the second PUSCH in the second CC, or (4) multiple UL channels of two panels are used in different CCs, such as the first uplink transmission 612A and the second uplink transmission 612B being the back-off PUSCH in one CC and the sDCI PUCCH and PUSCH in another CC.
[0117] In some aspects, the first uplink transmission 612A and the second uplink transmission 612B are single STxMP UL channels using two panels in a single CC. In some aspects of this, UE 602 may prioritize one UL channel for one panel, such as prioritizing one TCI ID with a lower TCI ID. For sDCI SDM / SFN PUSCH, UE 602 may prioritize one TCI. In some aspects, when prioritizing one TCI, UE 602 may drop another UL transmission. In some aspects, when prioritizing one TCI, UE 602 may reduce (e.g., limit) the transmission power to transmit another UL transmission for another TCI. In some aspects, UE 602 may fall back (e.g., scale) both transmission powers and may maintain different uplink transmission power ratios for different TCIs, and proportionally reduce both transmission powers accordingly (e.g., based on the indicated transmission power as indicated by network entity 604).
[0118] Figure 9A Figure 900 illustrates an example transmission power sharing scenario according to various aspects of this disclosure, wherein the total maximum transmission power is less than the sum of the first transmission power transmitted via the first uplink and the second transmission power transmitted via the second uplink. For example... Figure 9A As illustrated, the total maximum transmit power 902 may be less than the sum of the transmit power 904 indicated for the first panel and the transmit power 906 indicated for the second panel.
[0119] Figure 9B Figure 910 illustrates an example of power sharing in which a second transmission is dropped according to various aspects of this disclosure. Figure 9B As illustrated, the total maximum transmit power 912 may be less than the sum of the indicated transmit power 914 for the first panel and the indicated transmit power 916 for the second panel. Transmissions associated with the indicated transmit power 916 may be dropped because the UE prioritizes transmissions associated with the first panel.
[0120] Figure 9C Figure 920 illustrates an example of power sharing in which the transmission power of a second transmission is reduced, according to various aspects of this disclosure. Figure 9C As illustrated, the transmit power 924 for the first panel may not be reduced, and the transmit power 926 for the second panel may be limited based on the total maximum transmit power 922 (e.g., reduced to no more than the total maximum transmit power). Transmissions associated with the indicated transmit power 916 may be dropped because the UE prioritizes transmissions associated with the first panel.
[0121] Figure 9DFigure 940 illustrates an example of shared transmission power in which the first and second transmission powers are proportionally reduced based on a ratio, according to various aspects of this disclosure. Figure 9D As illustrated, the transmission power 944 for the first panel can be reduced, and the transmission power 946 for the second panel can also be reduced based on the total maximum transmission power 942. These reductions in transmission power can be based on a ratio between the transmission powers, such as based on... Figure 9A The ratio between the transmission powers indicated in the text.
[0122] In some aspects, where the first uplink transmission 612A and the second uplink transmission 612B use two UL channels from two panels within a single CC. In some aspects of this type, UE 602 may prioritize one UL channel for one panel, such as prioritizing a TCI ID with a lower TCI ID. For mDCI PUSCH, UE 602 may prioritize one TCI. In some aspects, when prioritizing, UE 602 may discard another UL transmission (e.g., as...). Figure 9B (As illustrated). In some respects, when prioritization is required, UE 602 may use reduced (e.g., limited) transmit power to transmit another UL transmission for another TCI (e.g., as shown). Figure 9C (As illustrated in the example). In some respects, UE 602 can roll back (e.g., scale) these two transmit powers, and can maintain different uplink transmit power ratios for different TCIs, and proportionally reduce these two transmit powers accordingly (e.g., based on the transmit power indicated by network entity 604) (e.g., as shown in the example). Figure 9D (As illustrated in the example). In some respects, UE 602 may prefer a channel type, such as a PUSCH with acknowledgment / negative acknowledgment (A / N) or a PUSCH without A / N.
[0123] In some aspects, where the first uplink transmission 612A and the second uplink transmission 612B are the first PUSCH in the first CC and the second PUSCH in the second CC. In some aspects of this, UE 602 may prioritize a UL channel type, such as prioritizing PRACH over PUCCH with A / N, and prioritizing PUCCH with A / N over other PUCCHs or PUSCHs. In some aspects, when prioritizing, UE 602 may discard another UL transmission (e.g., such as...). Figure 9B (As illustrated). In some respects, when prioritization is required, UE 602 may use reduced (e.g., limited) transmit power to transmit another UL transmission for another TCI (e.g., as shown). Figure 9C(As illustrated in the example). In some respects, UE 602 can roll back (e.g., scale) these two transmit powers, and can maintain different uplink transmit power ratios for different TCIs, and proportionally reduce these two transmit powers accordingly (e.g., based on the transmit power indicated by network entity 604) (e.g., as shown in the example). Figure 9D (As illustrated in the example). In some respects, UE 602 may prioritize both the UL panel and the UL channel type. For example, UE 602 may prioritize a PUSCH with CSI for the first panel over a PUCCH with ACK for the second panel.
[0124] In some aspects, where the first uplink transmission 612A and the second uplink transmission 612B are multiple UL channels using two panels in different CCs. In some aspects of this kind, UE 602 may prioritize one UL channel type, such as prioritizing PRACH over PUCCH with A / N, and prioritizing PUCCH with A / N over other PUCCHs or PUSCHs. In some aspects, when prioritizing, UE 602 may discard another UL transmission (e.g., as...). Figure 9B (As illustrated). In some respects, when prioritization is required, UE 602 may use reduced (e.g., limited) transmit power to transmit another UL transmission for another TCI (e.g., as shown). Figure 9C (As illustrated in the example). In some respects, UE 602 can roll back (e.g., scale) these two transmit powers, and can maintain different uplink transmit power ratios for different TCIs, and proportionally reduce these two transmit powers accordingly (e.g., based on the transmit power indicated by network entity 604) (e.g., as shown in the example). Figure 9D (As illustrated in the example). In some respects, UE 602 may prioritize both the UL panel and the UL channel type. For example, UE 602 may prioritize a PUSCH with CSI for the first panel over a PUCCH with ACK for the second panel.
[0125] In some respects, when UE 602 has been configured with a total configured maximum transmit power (e.g., across all panels / TRPs), UE 602 can be enabled to report PHR 610 to network entity 604. In some respects, UE 602 can take into account the maximum transmit power configured per panel (…). The PHR is reported for two panels specific to two simultaneous UL channels using the MPE values (MPE_0, MPE_1) and MPE values. Each PHR is available This is calculated based on the corresponding indicated power. In some aspects, the UE may not report the total configured maximum transmit power. And MPE_T in the PHR report (e.g., in PHR 610). Now refer to Figure 10A , Figure 10A This is an example of various aspects of this disclosure, wherein the maximum transmission power per panel configuration is taken into account. The example PHR report (Figure 1000) uses the MPE values (MPE_0, MPE_1) to report a specific PHR for two panels simultaneously via two UL channels. Figure 10A As illustrated, the UE can be configured based on the maximum transmit power per panel ( The report includes the PHR and MPE values (MPE_0, MPE_1). In the example PHR report, the V field indicates whether the value in the PHR is based on actual transmission or a reference format. For example, V=0 indicates actual transmission on PUSCH (Type 1 PHR) or PUCCH (Type 2 PHR), while V=1 indicates the use of a reference format. The P field indicates whether the MAC entity has applied power backoff due to power management.
[0126] In some respects, UE 602 can report a single PHR (e.g., in PHR 610) for two simultaneous UL channels (e.g., corresponding to uplink transmit 612A and uplink transmit 612B). For example, assuming and It is the transmission power of UL channel a and UL channel b transmitting simultaneously. A single PHR can be calculated as Furthermore, network entity 604 can be responsible for assigning the PH to both panels. Now refer to... Figure 10B , Figure 10B Figure 1050 illustrates an example PHR report for two simultaneous UL channels reporting a single PHR, according to various aspects of this disclosure. Figure 10B As illustrated, the UE can configure the maximum transmit power based on the total maximum transmit power ( Report the total MPE value (MPE_T).
[0127] In some respects, UE 602 can report two per-panel PHRs and one cross-panel PHR for two simultaneous UL channels (e.g., corresponding to uplink transmit 612A and uplink transmit 612B) (e.g., for the total configured maximum transmit power). (and total MPE value). For example, in a single PHR report instance, three PHRs may be included in a PHR610 for the same CC, and these three PHRs may be: (1) (2) and (3) Now for reference. Figure 10C , Figure 10CFigure 1070 illustrates an example PHR report for two simultaneous UL channels, two per-panel PHRs, and one cross-channel PHR, according to various aspects of this disclosure. Figure 10C As illustrated, the UE can configure the maximum transmit power based on the total maximum transmit power ( ) and total MPE value (MPE_T) and maximum transmit power configured per panel ( Report the MPE values (MPE_0, MPE_1).
[0128] In some respects, UE 602 can report two PHRs with virtual power splitting for the total configured transmit power for two simultaneous UL channels (e.g., corresponding to uplink transmit 612A and uplink transmit 612B). Each PHR can be used with the allocated virtual transmit power. To calculate. For example, ,and In some respects, the virtual power can be less than the maximum transmit power configured per panel. For example, ,and In some respects, the virtual power split can be determined by UE 602 and can be based on the fact that the sum of the virtual powers is less than the total configured maximum transmit power: In some respects, virtual power splitting can be fixed (e.g., based on a configured percentage, such as evenly distributed across all panels). Now refer to... Figure 10D , Figure 10D Figure 1090 illustrates an example PHR report with two per-panel PHRs for two simultaneous UL channel reports having a virtual power split for the total configured transmit power, according to various aspects of this disclosure. Figure 10D As illustrated, the UE can report based on virtual power splitting.
[0129] Figure 11 Figure 1100 illustrates example transmission power and virtual transmission power according to various aspects of this disclosure. Figure 11 As illustrated, the virtual power can be less than the maximum transmit power configured per panel. For example, ,and .
[0130] Figure 12 This is a flowchart 1200 of a wireless communication method. This method can be performed by a UE (e.g., UE 104; device 1404). This method enables simultaneous UL Tx power control across multiple panels / TRPs for communication between the UE and network entities.
[0131] At 1202, the UE can configure at least one maximum transmit power at the UE based on the total MPE. For example, UE 602 can configure (e.g., at 606) at least one maximum transmit power at the UE based on the total MPE. In some aspects, 1202 can be performed by power component 198.
[0132] At 1208, the UE may send at least one uplink transmission to the network entity based on at least one maximum transmit power and a set of power control parameters associated with a set of TRPs or a set of panels, wherein each power control parameter in the set of power control parameters is associated with a corresponding TRP in the set of TRPs or a corresponding panel in the set of panels. For example, UE 602 may send at least one uplink transmission (e.g., 612A / 612B) to network entity 604 based on the at least one maximum transmit power and the set of power control parameters associated with the set of TRPs or a set of panels, wherein each power control parameter in the set of power control parameters is associated with a corresponding TRP in the set of TRPs or a corresponding panel in the set of panels. In some aspects, 1208 may be performed by power component 198.
[0133] Figure 13 This is a flowchart 1300 of a wireless communication method. This method can be performed by a UE (e.g., UE 104; device 1404). This method enables simultaneous UL Tx power control across multiple panels / TRPs for communication between the UE and network entities.
[0134] At 1302, the UE can configure at least one maximum transmit power at the UE based on the total MPE. For example, UE 602 can configure (e.g., at 606) at least one maximum transmit power at the UE based on the total MPE. In some aspects, 1302 can be performed by power component 198. In some aspects, the at least one maximum transmit power includes a set of maximum transmit powers, wherein each maximum transmit power in the set of maximum transmit powers is associated with a corresponding TRP in the set of TRPs or a corresponding panel in the set of panels. In some respects, each maximum transmit power in the set of maximum transmit powers is based on one of the following: the TRP identifier (ID) associated with the corresponding TRP, the Transmit Configuration Indicator (TCI) status group ID associated with the corresponding TRP or the corresponding panel, the Transmit Power Control (TPC) ID associated with the corresponding TRP or the corresponding panel, the power amplifier ID associated with the corresponding TRP or the corresponding panel, the Path Loss Reference Signal (PLRS) ID associated with the corresponding TRP or the corresponding panel, the closed-loop index associated with the corresponding TRP or the corresponding panel, the control resource set (CORESET) pool index associated with the corresponding TRP or the corresponding panel, the sounding reference signal (SRS) resource set ID associated with the corresponding TRP or the corresponding panel, the demodulation reference signal (DM-RS) port group ID associated with the corresponding TRP or the corresponding panel, the resource block allocation set ID associated with the corresponding TRP or the corresponding panel, or the physical cell ID (PCI) associated with the corresponding TRP or the corresponding panel. In some aspects, each maximum transmit power in the set of maximum transmit powers is less than or equal to the configured uplink transmit power per TRP / panel, and the sum of each maximum transmit power in the set of maximum transmit powers is less than or equal to the configured cell-level uplink transmit power. In some aspects, the at least one maximum transmit power includes the maximum total transmit power associated with the set of TRPs or the set of panels, wherein the maximum total transmit power associated with the set of TRPs or the set of panels is based on the configured cell-level uplink transmit power. In some aspects, the at least one maximum transmit power includes a maximum total transmit power associated with a set of TRPs or a set of panels, wherein the maximum total transmit power associated with the set of TRPs or the set of panels is based on a configured cell-level uplink transmit power, the at least one uplink transmit includes a first uplink transmit to a first TRP in the set of TRPs and a second uplink transmit to a second TRP in the set of TRPs, wherein the first transmit power associated with the first uplink transmit is based on a first MPE associated with the first TRP, and the second transmit power associated with the second uplink transmit is based on a second MPE associated with the second TRP, and wherein the sum of the first transmit power and the second transmit power is less than the maximum total transmit power.In some aspects, the first MPE is less than the total MPE, and the second MPE is less than the total MPE. In some aspects, the sum of the first MPE and the second MPE is less than the total MPE. In some aspects, the at least one uplink transmission includes a first uplink transmission to a first TRP in a set of TRPs and a second uplink transmission to a second TRP in a set of TRPs, wherein a first transmission power associated with the first uplink transmission is based on the first MPE associated with the first TRP, and a second transmission power associated with the second uplink transmission is based on the second MPE associated with the second TRP, and wherein the sum of the first MPE and the second MPE is independent of the total MPE.
[0135] At 1304, the UE may determine at least one transmit power. For example, UE 602 may determine at least one transmit power at 608. In some aspects, 1304 may be performed by power component 198.
[0136] At 1306, the UE may transmit at least one PHR. For example, UE 602 may transmit at least one PHR to network entity 604 (e.g., 610). In some aspects, 1306 may be performed by power component 198. In some aspects, wherein the at least one uplink transmission includes a first uplink transmission to a first TRP in a set of TRPs and a second uplink transmission to a second TRP in a set of TRPs, wherein a first transmission power associated with the first uplink transmission is based on a first MPE associated with the first TRP, and a second transmission power associated with the second uplink transmission is based on a second MPE associated with the second TRP, the UE may transmit a first PHR report associated with the first TRP to report the first transmission power and the first MPE, and transmit a second PHR report associated with the second TRP to report the second transmission power and the second MPE. In some aspects, the at least one uplink transmission includes a first uplink transmission to a first TRP in a set of TRPs and a second uplink transmission to a second TRP in a set of TRPs, wherein a first transmit power associated with the first uplink transmission is based on a first MPE associated with the first TRP, and a second transmit power associated with the second uplink transmission is based on a second MPE associated with the second TRP, and the UE may transmit a PHR report associated with the first TRP and the second TRP to report values based on the total MPE, the first transmit power, and the second transmit power. In some aspects, the at least one uplink transmission includes a first uplink transmission to a first TRP in a set of TRPs and a second uplink transmission to a second TRP in a set of TRPs, wherein a first transmit power associated with the first uplink transmission is based on a first MPE associated with the first TRP, and a second transmit power associated with the second uplink transmission is based on a second MPE associated with the second TRP. The UE may transmit a first PHR report associated with the first TRP to report the first transmit power and the first MPE, transmit a second PHR report associated with the second TRP to report the second transmit power and the second MPE, and transmit a third PHR report to report the total MPE.In some aspects, the at least one uplink transmission includes a first uplink transmission to a first TRP in a set of TRPs and a second uplink transmission to a second TRP in a set of TRPs, wherein a first transmission power associated with the first uplink transmission is based on a first MPE associated with the first TRP, and a second transmission power associated with the second uplink transmission is based on a second MPE associated with the second TRP. The UE may transmit a first PHR report associated with the first TRP to report a first value based on the first transmission power and the virtual power, and transmit a second PHR report associated with the second TRP to report a second value based on the second transmission power and the virtual power. In some aspects, the at least one uplink transmission includes a first uplink transmission based on a first panel in a set of panels and a second uplink transmission based on a second panel in a set of panels, wherein the first uplink transmission is based on a first transmission power and the second uplink transmission is based on a second transmission power, wherein the first uplink transmission is associated with a first uplink channel and the second uplink transmission is associated with a second uplink channel, and wherein the first uplink transmission is associated with a first CC and the second uplink transmission is associated with a second CC.
[0137] In some aspects, the UE may determine the first transmit power and the second transmit power based on prioritizing either the first uplink transmission or the second uplink transmission. In some aspects, the UE may determine the first transmit power and the second transmit power based on the ratio between the first transmit power and the second transmit power. In some aspects, the UE may determine the first transmit power and the second transmit power based on prioritizing either the first uplink transmission or the second uplink transmission. In some aspects, the UE may determine the first transmit power and the second transmit power based on the ratio between the first transmit power and the second transmit power. In some aspects, the UE may determine the first transmit power and the second transmit power based on a first channel type associated with the first uplink transmission and a second channel type associated with the first uplink transmission.
[0138] At 1308, the UE may send at least one uplink transmission to a network entity based on at least one maximum transmit power and a set of power control parameters associated with a set of TRPs or a set of panels, wherein each power control parameter in the set of power control parameters is associated with a corresponding TRP in the set of TRPs or a corresponding panel in the set of panels. For example, UE 602 may send at least one uplink transmission (e.g., 612A / 612B) to network entity 604 based on the at least one maximum transmit power and the set of power control parameters associated with the set of TRPs or a set of panels, wherein each power control parameter in the set of power control parameters is associated with a corresponding TRP in the set of TRPs or a corresponding panel in the set of panels. In some aspects, 1308 may be performed by power component 198. In some aspects, the at least one uplink transmission includes a first uplink transmission based on a first panel in a set of panels and a second uplink transmission based on a second panel in a set of panels, wherein the first uplink transmission is based on a first transmission power and the second uplink transmission is based on a second transmission power, and wherein the first uplink transmission and the second uplink transmission are associated with the same uplink channel and the same component carrier (CC).
[0139] Figure 14Figure 1400 illustrates an example of a specific hardware implementation for device 1404. Device 1404 may be a UE, a component of a UE, or implement UE functionality. In some aspects, device 1404 may include at least one cellular baseband processor 1424 (also referred to as a modem) coupled to one or more transceivers 1422 (e.g., cellular RF transceivers). Cellular baseband processor 1424 may include at least one on-chip memory 1424'. In some aspects, device 1404 may also include one or more Subscriber Identity Module (SIM) cards 1420 and at least one application processor 1406 coupled to a Secure Digital Card (SD) card 1408 and a screen 1410. Application processor 1406 may include on-chip memory 1406'. In some aspects, device 1404 may also include a Bluetooth module 1412, a WLAN module 1414, an SPS module 1416 (e.g., a GNSS module), one or more sensor modules 1418 (e.g., a barometric pressure sensor / altimeter; motion sensors such as an inertial measurement unit (IMU), a gyroscope, and / or an accelerometer; light detection and ranging (LIDAR), radio-assisted detection and ranging (RADAR), sound navigation and ranging (SONAR), a magnetometer, audio, and / or other technologies for positioning), an additional memory module 1426, a power supply 1430, and / or a camera 1432. Bluetooth module 1412, WLAN module 1414, and SPS module 1416 may include on-chip transceivers (TRX) (or in some cases, only receivers (RX)). Bluetooth module 1412, WLAN module 1414, and SPS module 1416 may include their own dedicated antennas and / or communicate using antenna 1480. Cellular baseband processor 1424 communicates with UE 104 and / or RU associated with network entity 1402 via transceiver 1422 through one or more antennas 1480. Cellular baseband processor 1424 and application processor 1406 may each include computer-readable media / memory 1424', 1406'. Additional memory module 1426 may also be considered computer-readable media / memory. Each computer-readable media / memory 1424', 1406', 1426 may be non-transitory. Cellular baseband processor 1424 and application processor 1406 are each responsible for general processing, including the execution of software stored on the computer-readable media / memory. When executed by cellular baseband processor 1424 / application processor 1406, the software causes cellular baseband processor 1424 / application processor 1406 to perform the various functions described above. The computer-readable media / memory may also be used to store data manipulated by cellular baseband processor 1424 / application processor 1406 during software execution.Cellular baseband processor 1424 / application processor 1406 may be a component of UE 350 and may include at least one of memory 360 and / or TX processor 368, RX processor 356 and controller / processor 359. In one configuration, device 1404 may be at least one processor chip (modem and / or application) and may include only cellular baseband processor 1424 and / or application processor 1406, and in another configuration, device 1404 may be the entire UE (e.g., see below). Figure 3 The UE 350 includes an additional module of the device 1404.
[0140] As discussed above, power component 198 may be configured to configure at least one maximum transmit power at the UE based on the Total Maximum Allowable Exposure (MPE). In some aspects, power component 198 may be further configured to transmit at least one uplink transmission to a network entity based on the at least one maximum transmit power and a set of power control parameters associated with a set of TRPs or a set of panels, wherein each power control parameter in the set of power control parameters is associated with a corresponding TRP in the set of TRPs or a corresponding panel in the set of panels. Power component 198 may reside within cellular baseband processor 1424, application processor 1406, or both cellular baseband processor 1424 and application processor 1406. Component 198 may be one or more hardware components specifically configured to execute the stated process / algorithm, implemented by one or more processors configured to execute the stated process / algorithm, stored in a computer-readable medium for implementation by one or more processors, or some combination thereof. When multiple processors are implemented, the multiple processors may execute the stated process / algorithm individually or in combination. As shown in the figure, apparatus 1404 may include various components configured for various functions. In one configuration, apparatus 1404 (and particularly cellular baseband processor 1424 and / or application processor 1406) may include components for configuring at least one maximum transmit power at the UE based on the total maximum allowed exposure (MPE). In some aspects, apparatus 1404 may include components for sending at least one uplink transmission to a network entity based on the at least one maximum transmit power and a set of power control parameters associated with a set of TRPs or a set of panels, wherein each power control parameter in the set of power control parameters is associated with a corresponding TRP in the set of TRPs or a corresponding panel in the set of panels. In some aspects, apparatus 1404 may include components for sending a first power headroom (PHR) report associated with the first TRP to report the first transmit power and the first MPE. In some aspects, apparatus 1404 may include components for sending a second PHR report associated with the second TRP to report the second transmit power and the second MPE. In some aspects, apparatus 1404 may include components for transmitting a Power Headroom (PHR) report associated with the first TRP and the second TRP, reporting values based on the total MPE, the first transmit power, and the second transmit power. In some aspects, apparatus 1404 may include components for transmitting a first Power Headroom (PHR) report associated with the first TRP, reporting the first transmit power and the first MPE. In some aspects, apparatus 1404 may include components for transmitting a second PHR report associated with the second TRP, reporting the second transmit power and the second MPE. In some aspects, apparatus 1404 may include components for transmitting a third PHR report, reporting the total MPE.In some aspects, apparatus 1404 may include components for transmitting a third PHR report to report the total MPE. In some aspects, apparatus 1404 may include components for transmitting a first Power Headroom (PHR) report associated with the first TRP to report a first value based on the first transmit power and the virtual power. In some aspects, apparatus 1404 may include components for transmitting a second PHR report associated with the second TRP to report a second value based on the second transmit power and the virtual power. In some aspects, apparatus 1404 may include components for determining the first transmit power and the second transmit power based on prioritizing either the first uplink transmit or the second uplink transmit. In some aspects, apparatus 1404 may include components for determining the first transmit power and the second transmit power based on the ratio between the first transmit power and the second transmit power. In some aspects, apparatus 1404 may include components for determining the first transmit power and the second transmit power based on prioritizing either the first uplink transmit or the second uplink transmit. In some aspects, the apparatus 1404 may include components for determining the first transmit power and the second transmit power based on a ratio between the first transmit power and the second transmit power. In some aspects, the apparatus 1404 may include components for determining the first transmit power and the second transmit power based on a first channel type associated with the first uplink transmit and a second channel type associated with the first uplink transmit. In some aspects, the apparatus 1404 may include components for determining the first transmit power and the second transmit power based on prioritizing either the first uplink transmit or the second uplink transmit. In some aspects, the apparatus 1404 may include components for determining the first transmit power and the second transmit power based on a ratio between the first transmit power and the second transmit power. In some aspects, the apparatus 1404 may include components for determining the first transmit power and the second transmit power based on a first channel type associated with the first uplink transmit and a second channel type associated with the first uplink transmit. In some aspects, apparatus 1404 may include components for determining the first transmit power and the second transmit power based on prioritizing either the first uplink transmit or the second uplink transmit. In some aspects, apparatus 1404 may include components for determining the first transmit power and the second transmit power based on prioritizing the first uplink transmit, which is based on a single panel. In some aspects, apparatus 1404 may include components for determining the first transmit power and the second transmit power based on a ratio between the first transmit power and the second transmit power.In some aspects, apparatus 1404 may include components for determining the first transmit power and the second transmit power based on a first channel type associated with the first uplink transmission and a second channel type associated with the first uplink transmission. This component may be component 198 of apparatus 1404 configured to perform the functions described therein. As described above, apparatus 1404 may include a TX processor 368, an RX processor 356, and a controller / processor 359. Therefore, in one configuration, the component may be the TX processor 368, the RX processor 356, and / or the controller / processor 359 configured to perform the functions described therein.
[0141] It should be understood that the specific order or hierarchy of the boxes in the disclosed process / flowcharts is merely an example of the exemplary method. It should be understood that the specific order or hierarchy of the boxes in the process / flowcharts may be rearranged based on design preferences. Furthermore, some boxes may be combined or omitted. The appended method claims present the elements of various boxes in a sample order, but are not limited to the given specific order or hierarchy.
[0142] The foregoing description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. Therefore, the claims are not limited to the aspects described herein but should be given the full scope consistent with the language of the claims. Unless specifically stated otherwise, references to elements in the singular form do not mean “one and only one” but rather “one or more.” Terms such as “if,” “when,” and “simultaneously” do not imply a direct temporal relationship or reaction. That is, these phrases, such as “when,” do not imply an immediate action in response to the occurrence of an action or during the occurrence of an action, but simply suggest that an action will occur if the condition is met, without requiring a specific or immediate time limit for the occurrence of the action. The word “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any aspect described herein as “exemplary” is not necessarily to be construed as preferred or superior to other aspects. Unless otherwise specifically stated, the term “some” refers to one or more. Combinations such as "at least one of A, B, or C", "one or more of A, B, or C", "at least one of A, B, and C", "one or more of A, B, and C", and "A, B, C, or any combination thereof" include any combination of A, B, and / or C, and may include multiple A, multiple B, or multiple C. Specifically, combinations such as "at least one of A, B, or C", "one or more of A, B, or C", "at least one of A, B, and C", "one or more of A, B, and C", and "A, B, C, or any combination thereof" can be only A, only B, only C, A and B, A and C, B and C, or A and B and C, where any such combination may contain one or more members of A, B, or C. A set should be interpreted as a group of elements, where the elements are numbered one or more. Therefore, for a set of X, X will include one or more elements. When at least one processor is configured to execute a set of functions, that at least one processor is configured to execute that set of functions individually or in any combination. Therefore, each of the at least one processor can be configured to perform a specific subset of the set of functions, wherein the subset is the complete set, a suitable subset of the set, or an empty subset of the set. If the first device receives data from or sends data to the second device, data can be received / sent directly between the first and second devices, or indirectly between the first and second devices via a set of devices. A device configured to “output” data (such as transmission, signaling, or messaging) can, for example, transmit the data using a transceiver, or can transmit the data to the device that sent the data. A device configured to “receive” data (such as transmission, signaling, or messaging) can, for example, receive the data using a transceiver, or can obtain the data from the device that received the data.Information stored in memory includes instructions and / or data. All structural and functional equivalents of the elements throughout the various aspects described herein that are known to or will later be known to a person skilled in the art are expressly incorporated herein by reference and are covered by the claims. Furthermore, nothing disclosed herein is intended to be offered to the public, whether or not such disclosure is explicitly recited in the claims. The terms “module,” “mechanism,” “element,” “device,” etc., cannot replace the word “component.” Therefore, no claim element will be construed as a component plus function unless the element is explicitly recited using the phrase “component for…”.
[0143] As used in this article, the phrase “based on” should not be interpreted as referring to a closed set of information, one or more conditions, one or more factors, etc. In other words, the phrase “based on A” (where “A” can be information, conditions, factors, etc.) should be interpreted as “based on at least A”, unless otherwise stated otherwise.
[0144] The following aspects are merely illustrative and may be combined with other aspects or teachings described herein without limitation.
[0145] Aspect 1 is a method for wireless communication performed by a user equipment (UE), the method comprising: configuring at least one maximum transmit power at the UE based on a total maximum allowed exposure (MPE); and transmitting at least one uplink transmission to a network entity based on the at least one maximum transmit power and a set of power control parameters associated with a set of TRPs or a set of panels, wherein each power control parameter in the set of power control parameters is associated with a corresponding TRP in the set of TRPs or a corresponding panel in the set of panels.
[0146] Aspect 2 is the method according to aspect 1, wherein the at least one maximum transmit power includes a set of maximum transmit powers, wherein each maximum transmit power in the set of maximum transmit powers is associated with the corresponding TRP in the set of TRPs or the corresponding panel in the set of panels.
[0147] Aspect 3 is the method according to aspect 2, wherein each maximum transmit power in the set of maximum transmit powers is based on one of the following: a TRP identifier (ID) associated with the corresponding TRP, a transmit configuration indicator (TCI) status group ID associated with the corresponding TRP or the corresponding panel, a transmit power control (TPC) ID associated with the corresponding TRP or the corresponding panel, a power amplifier ID associated with the corresponding TRP or the corresponding panel, a path loss reference signal (PLRS) ID associated with the corresponding TRP or the corresponding panel, a closed-loop index associated with the corresponding TRP or the corresponding panel, a control resource set (CORESET) pool index associated with the corresponding TRP or the corresponding panel, a sounding reference signal (SRS) resource set ID associated with the corresponding TRP or the corresponding panel, a demodulation reference signal (DM-RS) port group ID associated with the corresponding TRP or the corresponding panel, a resource block allocation set ID associated with the corresponding TRP or the corresponding panel, or a physical cell ID (PCI) associated with the corresponding TRP or the corresponding panel.
[0148] Aspect 4 is the method according to any one of Aspects 2 to 3, wherein each maximum transmit power in the set of maximum transmit powers is less than or equal to the configured per TRP / panel uplink transmit power, and wherein the sum of each maximum transmit power in the set of maximum transmit powers is less than or equal to the configured cell-level uplink transmit power.
[0149] Aspect 5 is a method according to any one of Aspects 1 to 4, wherein the at least one maximum transmit power includes the maximum total transmit power associated with the set of TRPs or the set of panels, wherein the maximum total transmit power associated with the set of TRPs or the set of panels is based on the configured cell-level uplink transmit power.
[0150] Aspect 6 is the method according to aspect 5, wherein the at least one uplink transmission includes a first uplink transmission to a first TRP in the set of TRPs and a second uplink transmission to a second TRP in the set of TRPs, wherein a first transmission power associated with the first uplink transmission is based on a first MPE associated with the first TRP, and a second transmission power associated with the second uplink transmission is based on a second MPE associated with the second TRP, and wherein the sum of the first transmission power and the second transmission power is less than the maximum total transmission power.
[0151] Aspect 7 is the method according to aspect 6, wherein the first MPE is less than the total MPE, and the second MPE is less than the total MPE.
[0152] Aspect 8 is the method according to aspect 6, wherein the sum of the MPEs of the first MPE and the second MPE is less than the total MPE.
[0153] Aspect 9 is a method according to any one of Aspects 5 to 8, wherein the at least one uplink transmission includes a first uplink transmission to a first TRP in the set of TRPs and a second uplink transmission to a second TRP in the set of TRPs, wherein a first transmission power associated with the first uplink transmission is based on a first MPE associated with the first TRP, and a second transmission power associated with the second uplink transmission is based on a second MPE associated with the second TRP, and wherein the sum of the first MPE and the second MPE is independent of the total MPE.
[0154] Aspect 10 is a method according to any one of Aspects 5 to 8, wherein the at least one uplink transmission includes a first uplink transmission to a first TRP in the set of TRPs and a second uplink transmission to a second TRP in the set of TRPs, wherein a first transmission power associated with the first uplink transmission is based on a first MPE associated with the first TRP, and a second transmission power associated with the second uplink transmission is based on a second MPE associated with the second TRP, and the method further includes: transmitting a first power headroom (PHR) report associated with the first TRP to report the first transmission power and the first MPE, and transmitting a second PHR report associated with the second TRP to report the second transmission power and the second MPE.
[0155] Aspect 11 is a method according to any one of Aspects 5 to 8, wherein the at least one uplink transmission includes a first uplink transmission to a first TRP in the set of TRPs and a second uplink transmission to a second TRP in the set of TRPs, wherein a first transmission power associated with the first uplink transmission is based on a first MPE associated with the first TRP, and a second transmission power associated with the second uplink transmission is based on a second MPE associated with the second TRP, and the method further includes: transmitting a power headroom (PHR) report associated with the first TRP and the second TRP to report values based on the total MPE, the first transmission power, and the second transmission power.
[0156] Aspect 12 is a method according to any one of Aspects 5 to 8, wherein the at least one uplink transmission includes a first uplink transmission to a first TRP in the set of TRPs and a second uplink transmission to a second TRP in the set of TRPs, wherein a first transmission power associated with the first uplink transmission is based on a first MPE associated with the first TRP, and a second transmission power associated with the second uplink transmission is based on a second MPE associated with the second TRP, and the method further includes: transmitting a first power headroom (PHR) report associated with the first TRP to report the first transmission power and the first MPE; transmitting a second PHR report associated with the second TRP to report the second transmission power and the second MPE; and transmitting a third PHR report to report the total MPE.
[0157] Aspect 13 is a method according to any one of Aspects 5 to 8, wherein the at least one uplink transmission includes a first uplink transmission to a first TRP in the set of TRPs and a second uplink transmission to a second TRP in the set of TRPs, wherein a first transmission power associated with the first uplink transmission is based on a first MPE associated with the first TRP, and a second transmission power associated with the second uplink transmission is based on a second MPE associated with the second TRP, and the method further includes: transmitting a first power headroom (PHR) report associated with the first TRP to report a first value based on the first transmission power and the virtual power, and transmitting a second PHR report associated with the second TRP to report a second value based on the second transmission power and the virtual power.
[0158] Aspect 14 is a method according to any one of Aspects 5 to 13, wherein the at least one uplink transmission includes a first uplink transmission based on a first panel in the set of panels and a second uplink transmission based on a second panel in the set of panels, wherein the first uplink transmission is based on a first transmission power and the second uplink transmission is based on a second transmission power, and wherein the first uplink transmission and the second uplink transmission are associated with the same uplink channel and the same component carrier (CC).
[0159] Aspect 15 is the method according to aspect 14, the method further comprising: determining the first transmission power and the second transmission power based on prioritizing either the first uplink transmission or the second uplink transmission.
[0160] Aspect 16 is the method according to aspect 14, the method further comprising: determining the first transmission power and the second transmission power based on the ratio between the first transmission power and the second transmission power.
[0161] Aspect 17 is a method according to any one of Aspects 5 to 16, wherein the at least one uplink transmission includes a first uplink transmission based on a first panel in the set of panels and a second uplink transmission based on a second panel in the set of panels, wherein the first uplink transmission is based on a first transmission power and the second uplink transmission is based on a second transmission power, wherein the first uplink transmission is associated with a first uplink channel and the second uplink transmission is associated with a second uplink channel, and wherein the first uplink transmission and the second uplink transmission are the same component carrier (CC).
[0162] Aspect 18 is the method according to aspect 17, the method further comprising: determining the first transmission power and the second transmission power based on prioritizing either the first uplink transmission or the second uplink transmission.
[0163] Aspect 19 is a method according to any one of aspects 17 to 18, the method further comprising: determining the first transmission power and the second transmission power based on the ratio between the first transmission power and the second transmission power.
[0164] Aspect 20 is a method according to any one of aspects 17 to 19, the method further comprising: determining the first transmit power and the second transmit power based on a first channel type associated with the first uplink transmission and a second channel type associated with the first uplink transmission.
[0165] Aspect 21 is a method according to any one of aspects 5 to 20, wherein the at least one uplink transmission includes a first uplink transmission based on a first panel in the set of panels and a second uplink transmission based on a second panel in the set of panels, wherein the first uplink transmission is based on a first transmission power and the second uplink transmission is based on a second transmission power, wherein the first uplink transmission is associated with a first uplink channel and the second uplink transmission is associated with a second uplink channel, and wherein the first uplink transmission is associated with a first component carrier (CC) and the second uplink transmission is associated with a second CC.
[0166] Aspect 22 is the method according to aspect 21, the method further comprising: determining the first transmission power and the second transmission power based on prioritizing either the first uplink transmission or the second uplink transmission.
[0167] Aspect 23 is a method according to any one of aspects 5 to 22, the method further comprising: determining the first transmission power and the second transmission power based on the ratio between the first transmission power and the second transmission power.
[0168] Aspect 24 is a method according to any one of aspects 5 to 23, the method further comprising: determining the first transmit power and the second transmit power based on a first channel type associated with the first uplink transmission and a second channel type associated with the first uplink transmission.
[0169] Aspect 25 is a method according to any one of Aspects 5 to 24, wherein the at least one uplink transmission includes a first uplink transmission based on a first panel in the set of panels and a second uplink transmission based on the first panel and a second panel in the set of panels, wherein the first uplink transmission is based on a first transmission power and the second uplink transmission is based on a second transmission power, wherein the first uplink transmission is associated with a first uplink channel and the second uplink transmission is associated with a second uplink channel, and wherein the first uplink transmission is associated with a first component carrier (CC) and the second uplink transmission is associated with a second CC.
[0170] Aspect 26 is the method according to aspect 25, the method further comprising: determining the first transmission power and the second transmission power based on prioritizing either the first uplink transmission or the second uplink transmission.
[0171] Aspect 27 is a method according to any one of aspects 25 to 26, the method further comprising: determining the first transmission power and the second transmission power based on prioritizing the first uplink transmission, the first uplink transmission being based on a single panel.
[0172] Aspect 28 is a method according to any one of aspects 25 to 27, the method further comprising: determining the first transmission power and the second transmission power based on the ratio between the first transmission power and the second transmission power.
[0173] Aspect 29 is a method according to any one of aspects 25 to 28, the method further comprising: determining the first transmit power and the second transmit power based on a first channel type associated with the first uplink transmission and a second channel type associated with the first uplink transmission.
[0174] Aspect 30 is an apparatus for wireless communication at a device, the apparatus including at least one memory and at least one processor, the at least one processor being coupled to the at least one memory and being based at least in part on information stored in the at least one memory, the at least one processor being configured individually or in any combination to implement any one of aspects 1 to 29.
[0175] Aspect 31 is the apparatus according to aspect 30, the apparatus further comprising: one or more transceivers or one or more antennas coupled to the at least one processor.
[0176] Aspect 32 is an apparatus for wireless communication at a device, the apparatus including components for implementing any one of aspects 1 to 29.
[0177] Aspect 33 is a computer-readable medium (e.g., a non-transitory computer-readable medium) storing computer-executable code, wherein the code, when executed by at least one processor, causes the at least one processor to implement any one of aspects 1 to 29.
Claims
1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: at least one memory; and at least one processor coupled to the at least one memory and configured, based at least in part on information stored in the at least one memory, to cause the UE, individually or in any combination: to configure at least one maximum transmit power at the UE based on a total maximum permissible exposure (MPE); and to transmit at least one uplink transmission to a network entity based on the at least one maximum transmit power and a set of power control parameters associated with a set of TRPs or a set of panels, wherein each power control parameter of the set of power control parameters is associated with a respective TRP of the set of TRPs or a respective panel of the set of panels.
2. The apparatus of claim 1, wherein the at least one maximum transmit power comprises a set of maximum transmit powers, wherein each maximum transmit power of the set of maximum transmit powers is associated with the respective TRP of the set of TRPs or the respective panel of the set of panels.
3. The apparatus of claim 2, wherein each maximum transmit power of the set of maximum transmit powers is based on one of: a TRP identifier (ID) associated with the respective TRP, a transmission configuration indicator (TCI) state group ID associated with the respective TRP or the respective panel, a transmit power control (TPC) ID associated with the respective TRP or the respective panel, a power amplifier ID associated with the respective TRP or the respective panel, a path loss reference signal (PL RS) ID associated with the respective TRP or the respective panel, a closed loop index associated with the respective TRP or the respective panel, a control resource set (CORESET) pool index associated with the respective TRP or the respective panel, a sounding reference signal (SRS) resource set ID associated with the respective TRP or the respective panel, a demodulation reference signal (DM-RS) port group ID associated with the respective TRP or the respective panel, a resource block allocation set ID associated with the respective TRP or the respective panel, or a physical cell ID (PCI) associated with the respective TRP or the respective panel.
4. The apparatus of claim 2, wherein each maximum transmit power of the set of maximum transmit powers is less than or equal to a configured per-TRP / panel uplink transmit power, and wherein a sum of each maximum transmit power of the set of maximum transmit powers is less than or equal to a configured cell-level uplink transmit power.
5. The apparatus of claim 1, wherein the at least one maximum transmit power comprises a maximum total transmit power associated with the set of TRPs or the set of panels, wherein the maximum total transmit power associated with the set of TRPs or the set of panels is based on a configured cell-level uplink transmit power.
6. The apparatus of claim 5, wherein the at least one uplink transmission comprises a first uplink transmission to a first TRP of the set of TRPs and a second uplink transmission to a second TRP of the set of TRPs, wherein a first transmit power associated with the first uplink transmission is based on a first MPE associated with the first TRP and a second transmit power associated with the second uplink transmission is based on a second MPE associated with the second TRP, and wherein a sum of the first transmit power and the second transmit power is less than the maximum total transmit power.
7. The apparatus of claim 6, wherein the first MPE is less than the total MPE and the second MPE is less than the total MPE.
8. The apparatus of claim 6, wherein a sum of the first MPE and the second MPE is less than the total MPE.
9. The apparatus of claim 5, wherein the at least one uplink transmission comprises a first uplink transmission to a first TRP of the set of TRPs and a second uplink transmission to a second TRP of the set of TRPs, wherein a first transmit power associated with the first uplink transmission is based on a first MPE associated with the first TRP and a second transmit power associated with the second uplink transmission is based on a second MPE associated with the second TRP, and wherein a sum of the first MPE and the second MPE is independent of the total MPE.
10. The apparatus of claim 5, wherein the at least one uplink transmission comprises a first uplink transmission to a first TRP of the set of TRPs and a second uplink transmission to a second TRP of the set of TRPs, wherein a first transmit power associated with the first uplink transmission is based on a first MPE associated with the first TRP and a second transmit power associated with the second uplink transmission is based on a second MPE associated with the second TRP, and wherein the at least one processor is configured to: transmit a first power headroom (PHR) report associated with the first TRP to report the first transmit power and the first MPE, and transmit a second PHR report associated with the second TRP to report the second transmit power and the second MPE.
11. The apparatus of claim 5, wherein the at least one uplink transmission comprises a first uplink transmission to a first TRP of the set of TRPs and a second uplink transmission to a second TRP of the set of TRPs, wherein a first transmit power associated with the first uplink transmission is based on a first MPE associated with the first TRP and a second transmit power associated with the second uplink transmission is based on a second MPE associated with the second TRP, and wherein the at least one processor is configured to: transmit a power headroom (PHR) report associated with the first TRP and the second TRP to report a value based on the total MPE, the first transmit power, and the second transmit power.
12. The apparatus of claim 5, wherein the at least one uplink transmission comprises a first uplink transmission to a first TRP of the set of TRPs and a second uplink transmission to a second TRP of the set of TRPs, wherein a first transmit power associated with the first uplink transmission is based on a first MPE associated with the first TRP and a second transmit power associated with the second uplink transmission is based on a second MPE associated with the second TRP, and wherein the at least one processor is configured to: transmit a first power headroom (PHR) report associated with the first TRP to report the first transmit power and the first MPE, transmit a second PHR report associated with the second TRP to report the second transmit power and the second MPE; and transmit a third PHR report to report the total MPE.
13. The apparatus of claim 5, wherein the at least one uplink transmission comprises a first uplink transmission to a first TRP of the set of TRPs and a second uplink transmission to a second TRP of the set of TRPs, wherein a first transmit power associated with the first uplink transmission is based on a first MPE associated with the first TRP and a second transmit power associated with the second uplink transmission is based on a second MPE associated with the second TRP, and wherein the at least one processor is configured to: transmit a first power headroom (PHR) report associated with the first TRP to report a first value based on the first transmit power and a virtual power, and transmit a second PHR report associated with the second TRP to report a second value based on the second transmit power and the virtual power.
14. The apparatus of claim 5, wherein the at least one uplink transmission comprises a first uplink transmission based on a first panel of the set of panels and a second uplink transmission based on a second panel of the set of panels, wherein the first uplink transmission is based on a first transmit power and the second uplink transmission is based on a second transmit power, and wherein the first uplink transmission and the second uplink transmission are associated with a same uplink channel and a same component carrier (CC).
15. The apparatus of claim 14, wherein the at least one processor is configured to: determine the first transmit power and the second transmit power based on prioritizing one of the first uplink transmission or the second uplink transmission.
16. The apparatus of claim 14, wherein the at least one processor is configured to: determine the first transmit power and the second transmit power based on a ratio between the first transmit power and the second transmit power.
17. The apparatus of claim 5, wherein the at least one uplink transmission comprises a first uplink transmission based on a first panel of the set of panels and a second uplink transmission based on a second panel of the set of panels, wherein the first uplink transmission is based on a first transmit power and the second uplink transmission is based on a second transmit power, wherein the first uplink transmission is associated with a first uplink channel and the second uplink transmission is associated with a second uplink channel, and wherein the first uplink transmission and the second uplink transmission are a same component carrier (CC).
18. The apparatus of claim 17, wherein the at least one processor is configured to: determine the first transmit power and the second transmit power based on prioritizing one of the first uplink transmission or the second uplink transmission.
19. The apparatus of claim 17, wherein the at least one processor is configured to: determine the first transmit power and the second transmit power based on a ratio between the first transmit power and the second transmit power.
20. The apparatus of claim 17, wherein the at least one processor is configured to: determine the first transmit power and the second transmit power based on a first channel type associated with the first uplink transmission and a second channel type associated with the first uplink transmission.
21. The apparatus of claim 5, wherein the at least one uplink transmission comprises a first uplink transmission based on a first panel of the set of panels and a second uplink transmission based on a second panel of the set of panels, wherein the first uplink transmission is based on a first transmit power and the second uplink transmission is based on a second transmit power, wherein the first uplink transmission is associated with a first uplink channel and the second uplink transmission is associated with a second uplink channel, and wherein the first uplink transmission is associated with a first component carrier (CC) and the second uplink transmission is associated with a second CC.
22. The apparatus of claim 21, wherein the at least one processor is configured to: determine the first transmit power and the second transmit power based on prioritizing one of the first uplink transmission or the second uplink transmission.
23. The apparatus of claim 21, wherein the at least one processor is configured to: determine the first transmit power and the second transmit power based on a ratio between the first transmit power and the second transmit power.
24. The apparatus of claim 21, wherein the at least one processor is configured to: determine the first transmit power and the second transmit power based on a first channel type associated with the first uplink transmission and a second channel type associated with the first uplink transmission.
25. The apparatus of claim 5, wherein the at least one uplink transmission comprises a first uplink transmission based on a first panel of the set of panels and a second uplink transmission based on the first panel and a second panel of the set of panels, wherein the first uplink transmission is based on a first transmit power and the second uplink transmission is based on a second transmit power, wherein the first uplink transmission is associated with a first uplink channel and the second uplink transmission is associated with a second uplink channel, and wherein the first uplink transmission is associated with a first component carrier (CC) and the second uplink transmission is associated with a second CC.
26. The apparatus of claim 25, wherein the at least one processor is configured to: determine the first transmit power and the second transmit power based on prioritizing one of the first uplink transmission or the second uplink transmission.
27. The apparatus of claim 25, wherein the at least one processor is configured to: determine the first transmit power and the second transmit power based on prioritizing the first uplink transmission, the first uplink transmission being based on a single panel.
28. The apparatus of claim 25, wherein the at least one processor is configured to: determine the first transmit power and the second transmit power based on a ratio between the first transmit power and the second transmit power.
29. The apparatus of claim 25, wherein the at least one processor is configured to: determining the first transmit power and the second transmit power based on a first channel type associated with the first uplink transmission and a second channel type associated with the first uplink transmission.
30. A method for wireless communication performed by a user equipment (UE), the method comprising: configuring at least one maximum transmit power at the UE based on a total maximum permissible exposure (MPE); and transmitting at least one uplink transmission to a network entity based on the at least one maximum transmit power and a set of power control parameters associated with a set of TRPs or a set of panels, wherein each power control parameter of the set of power control parameters is associated with a respective TRP of the set of TRPs or a respective panel of the set of panels.