Channel-Specific Maximum Permissible Exposure Report

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may generate a maximum permitted exposure (MPE) report for a subset of uplink channels included in a set of uplink channels to be used by the UE to transmit an uplink transmission, where the MPE report includes MPE report information for the subset of uplink channels and an identifier with which each uplink channel of the subset of uplink channels is associated. The UE may transmit the MPE report associated with the subset of uplink channels to a base station. Numerous other aspects are provided.

Description

Technical Field

[0001]

[0001] Aspects of the present disclosure generally relate to wireless communication, and more particularly, to techniques and apparatus for channel-specific maximum allowable exposure reporting.

Background Art

[0002]

[0002] Wireless communication systems are widely deployed to provide various telecommunications services such as telephony, video, data, messaging, and broadcast. A typical wireless communication system may employ a multiple access technology that can support communication with multiple users by sharing available system resources (e.g., bandwidth or transmit power). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE (registered trademark)). LTE / LTE-Advanced is a set of extensions to the Universal Mobile Telecommunications System (UMTS) mobile standards published by the 3rd Generation Partnership Project (3GPP (registered trademark)).

[0003]

[0003] The above multi-connectivity technology is adopted in various telecommunication standards to provide a common protocol that enables different user equipment (UE) to communicate on an urban, national, regional, and even global scale. New Radio (NR), sometimes called 5G, is a set of extensions to the LTE mobile standard published by the 3GPP. NR is designed to better support mobile broadband Internet access by improving spectral efficiency, reducing costs, improving services, utilizing new spectrum, and better integrating with other open standards by using orthogonal frequency division multiplexing (OFDM) with cyclic prefix (CP) (CP-OFDM) on the downlink (DL) and CP-OFDM or single-carrier frequency division multiple access (SC-FDMA), also known as discrete Fourier transform spread OFDM (DFT-s-OFDM), on the uplink (UL), as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. However, as the demand for mobile broadband access continues to increase, there is a need to further improve LTE and NR technologies. Preferably, these improvements are applicable to other multi-connectivity technologies and the telecommunication standards that adopt these technologies.

[0004]

[0004] To limit a user's exposure to radio frequency (RF) radiation, a regulatory exposure limit can be imposed on wireless communication devices such as a UE. For example, to limit a user's exposure to RF radiation, a maximum permissible exposure (MPE) can be imposed on a UE operating in a frequency band above 6 GHz. Generally, a UE is composed of a detector capable of detecting the occurrence of a UE exposure exceeding the MPE (referred to herein as an MPE event). When an MPE event is detected, the UE can implement mitigation, such as applying power reduction to the UE's uplink transmission. The UE may also need to send an MPE report to the BS to provide the BS with information that enables the BS to appropriately schedule the UE for an upcoming communication based on the power reduction applied by the UE. However, conventional MPE reports are cell-specific, and the reported metrics are common to all panels of the UE. Therefore, conventional MPE reports are insufficient in a wireless communication system where a transmission configuration indicator (TCI) framework utilizes separate TCI states to adapt to separate beam indications for uplink and downlink beams.

Summary of the Invention

[0005]

[0005] In some aspects, a user equipment (UE) for wireless communication includes a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors being configured to generate a maximum permissible exposure (MPE) report for a subset of uplink channels included in a set of uplink channels to be used by the UE to transmit an uplink transmission, where the MPE report includes MPE report information for the subset of uplink channels and identifiers associated with each uplink channel of the subset of uplink channels. The memory and the one or more processors transmit the MPE report associated with the subset of uplink channels to a base station.

[0006]

[0006] In some aspects, a method of wireless communication performed by a UE includes generating an MPE report for a subset of uplink channels included in a set of uplink channels to be used by the UE to transmit an uplink transmission, where the MPE report includes MPE report information for the subset of uplink channels and identifiers associated with each uplink channel of the subset of uplink channels. The method includes transmitting the MPE report associated with the subset of uplink channels to a base station.

[0007]

[0007] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication, when executed by one or more processors of a UE, causes the UE to generate an MPE report for a subset of uplink channels included in a set of uplink channels to be used by the UE to transmit an uplink transmission, where the MPE report includes MPE report information for the subset of uplink channels and identifiers associated with each uplink channel of the subset of uplink channels. The one or more instructions cause the UE to transmit the MPE report associated with the subset of uplink channels to a base station.

[0008]

[0008] In some aspects, an apparatus for wireless communication includes means for generating an MPE report for a subset of uplink channels included in a set of uplink channels to be used by the apparatus for transmitting uplink transmissions, where the MPE report includes MPE report information for the subset of uplink channels and identifiers associated with each uplink channel of the subset of uplink channels. The apparatus includes means for transmitting the MPE report associated with the subset of uplink channels to a base station.

[0009]

[0009] Aspects are generally substantially described with reference to the drawings and the specification, and include a method, an apparatus, a system, a computer program product, a non-transitory computer-readable medium, a user equipment, a base station, a wireless communication device, or a processing system, as shown by the drawings and the specification.

[0010]

[0010] The foregoing has outlined rather broadly the features and technical advantages of examples according to the present disclosure so as to enable a better understanding of the detailed description of the invention that follows. Additional features and advantages will be described hereinafter. The disclosed concepts and specific examples may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both their organization and method of operation, together with the associated advantages, will be better understood from the following description when considered in connection with the accompanying figures. Each of the figures is provided for the purpose of illustration and description and is not intended as a definition of the limits of the claims.

[0011]

[0011] To enable a more detailed understanding of the features set forth above in this disclosure, a more specific description, briefly summarized above, can be obtained by referring to the embodiments shown in part in the accompanying drawings. However, it should be noted that the accompanying drawings merely illustrate some typical embodiments of this disclosure, and thus the description should not be construed as limiting the scope of this disclosure as it may admit other equally valid embodiments. The same reference numerals in different drawings may identify the same or similar elements.

Brief Description of the Drawings

[0012]

Figure 1

[0012] A diagram illustrating an example of a wireless network according to various embodiments of this disclosure.

Figure 2

[0013] A diagram showing an exemplary base station (BS) communicating with a user equipment (UE) in a wireless network according to various embodiments of this disclosure.

Figure 3A

[0014] A diagram illustrating an example related to channel-specific maximum permissible exposure (MPE) reporting according to various embodiments of this disclosure.

Figure 3B

Figure 4

[0015] A flowchart showing an exemplary process implemented by a UE, for example, supporting channel-specific MPE reporting according to various embodiments of this disclosure.

Figure 5

[0016] A block diagram of an exemplary apparatus for wireless communication supporting channel-specific MPE reporting according to various embodiments of this disclosure.

Modes for Carrying Out the Invention

[0013]

[0017] Various aspects of the present disclosure are described in more detail below with reference to the accompanying drawings. However, the present disclosure may be implemented in many different forms and should not be construed as limited to any particular structure or function presented throughout the present disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Based on the teachings herein, one of ordinary skill in the art will appreciate that the scope of the present disclosure covers any aspect of the present disclosure disclosed herein, whether implemented independently of other aspects of the present disclosure or combined with other aspects of the present disclosure. For example, an apparatus may be implemented or a method may be performed using any number of the aspects described herein. Further, the scope of the present disclosure is intended to cover such apparatus or methods implemented using other structures, functions, or structures and functions in addition to or other than the various aspects of the present disclosure described herein. Any aspect of the present disclosure disclosed herein may be implemented by one or more elements of the claims.

[0014]

[0018] Next, some aspects of a telecommunications system are presented with reference to various devices and techniques. These devices and techniques are described in the following detailed description and are shown in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination of hardware and software. Whether such elements are implemented as hardware or software depends on the particular application and design constraints imposed on the overall system.

[0015]

[0019] Various aspects generally relate to channel-specific maximum permissible exposure (MPE) reporting. Some aspects, more particularly, relate to a UE generating and transmitting an MPE report that includes reporting information for a subset of one or more uplink channels included in a set of uplink channels that can be used by the UE to transmit uplink transmissions, and identifiers associated with each uplink channel of the subset of uplink channels. In some aspects, the identifier can be, for example, an uplink channel type identifier, an uplink panel identifier, an uplink transmission configuration indicator (TCI) identifier, or a path loss reference signal (PL-RS) identifier. In some aspects, the MPE reporting information can include values for metrics specific to the subset of uplink channels.

[0016]

[0020] Certain aspects of the subject matter described in this disclosure can be implemented to realize one or more of the following potential advantages. In some examples, the techniques described enable a UE to generate and transmit a channel-specific MPE report that includes reporting information at a channel-specific level. In some aspects, transmitting MPE reporting information at a channel-specific level enables a BS to be provided with sufficient information to appropriately respond to mitigation actions taken by the UE after detection of an MPE event, thereby improving communication between the UE and the BS. For example, the BS can schedule the uplink communication of the UE using a sufficient amount of resource blocks (RBs) based on the power reduction indicated in the MPE report as being applied by the UE, which can improve the reliability of communication between the UE and the BS.

[0017]

[0021] FIG. 1 is a diagram showing an example of a wireless network according to various aspects of the present disclosure. The wireless network can be or include elements of a 5G (NR) network or an LTE network, among other examples. The wireless network can include one or more base stations 110 (shown as BS110a, BS110b, BS110c, and BS110d) and other network entities. A base station (BS) is an entity that communicates with user equipment (UE) and can be referred to as, among other examples, an NR BS, Node B, gNB, 5G Node B (NB), access point, or transmission and reception point (TRP). Each BS can provide communication coverage for a specific geographic area. In 3GPP, the term "cell" can refer to the coverage area of a BS or the BS subsystem serving this coverage area, depending on the context in which the term is used.

[0018]

[0022] A BS can provide communication coverage for a macrocell, picocell, femtocell, or another type of cell. A macrocell can cover a relatively large geographic area (e.g., several kilometers in radius) and can enable unrestricted access by UEs subscribed to the service. A picocell can cover a relatively small geographic area and can enable unrestricted access by UEs subscribed to the service. A femtocell can cover a relatively small geographic area (e.g., a home) and can enable restricted access by UEs associated with the femtocell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macrocell can sometimes be called a macro BS. A BS for a picocell can sometimes be called a pico BS. A BS for a femtocell can sometimes be called a femto BS or a home BS. A BS can support one or more (e.g., three) cells.

[0019]

[0023] A wireless network can be a heterogeneous network that includes different types of BSs, such as macro BSs, pico BSs, femto BSs, or relay BSs. These different types of BSs can have different transmission power levels, different coverage areas, and different impacts on interference in the wireless network. For example, a macro BS can have a high transmission power level (e.g., 5 - 40 watts), while pico BSs, femto BSs, and relay BSs can have lower transmission power levels (e.g., 0.1 - 2 watts). In the example shown in FIG. 1, BS110a can be a macro BS for macro cell 102a, BS110b can be a pico BS for pico cell 102b, and BS110c can be a femto BS for femto cell 102c. The network controller 130 can be coupled to the set of BSs 102a, 102b, 110a, and 110b and can perform coordination and control for these BSs. The network controller 130 can communicate with the BSs via a backhaul. The BSs can also communicate with each other directly or indirectly, for example, via a wireless backhaul or a wireline backhaul, through various types of backhaul interfaces, such as a direct physical connection or a virtual network, or with one or more other BSs or network nodes (not shown) in the wireless network.

[0020]

[0024] In some aspects, the cells may not be fixed, rather, the geographical area of a cell can move according to the location of the mobile BS. In some aspects, the BSs can be interconnected with each other or with one or more other BSs or network nodes (not shown) in the wireless network through various types of backhaul interfaces, such as a direct physical connection or a virtual network, using any suitable transport network.

[0021]

[0025] A wireless network may also include relay stations. A relay station is an entity that can receive a data transmission from an upstream station (e.g., a BS or a UE) and send the data transmission to a downstream station (e.g., a UE or a BS). A relay station can also be a UE that can relay transmissions for other UEs. In the example shown in FIG. 1, relay BS 110d can communicate with macro BS 110a and UE 120d to enable communication between BS 110a and UE 120d. A relay BS may also be referred to as, among other examples, a relay station, a relay base station, or a relay.

[0022]

[0026] UEs 120 (e.g., 120a, 120b, 120c) can be distributed throughout the wireless network, and each UE can be fixed or mobile. A UE may also be referred to as, among other examples, an access terminal, a terminal, a mobile station, a subscriber unit, or a station. A UE can be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or instrument, a biosensor / biodevice, a wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music device or a video device, or a satellite radio), a vehicle component or vehicle sensor, a smart meter / smart sensor, an industrial manufacturing device, a global positioning system device, or any other suitable device configured to communicate via a wireless medium.

[0023]

[0027] Some UEs may be regarded as machine type communication (MTC) UEs or enhanced or extended machine type communication (eMTC) UEs. MTC UEs and eMTC UEs can communicate with, for example, a base station, another device (e.g., a remote device), or some other entity, including, among others, robots, drones, remote devices, sensors, meters, monitors, or location tags. The wireless node can provide connectivity for or to a network (e.g., a wide area network such as the Internet or a cellular network) via, for example, a wired or wireless communication link. Some UEs may be regarded as Internet of Things (IoT) devices or implemented as narrowband Internet of Things (NB-IoT) devices. Some UEs may be regarded as customer premises equipment (CPE). The UE 120 may be included within a housing that stores components of the UE 120, such as, among others, a processor component or a memory component.

[0024]

[0028] Generally, any amount of wireless networks can be deployed within a given geographical area. Each wireless network can support a particular radio access technology (RAT) and operate on one or more frequencies or frequency channels. Frequencies may also be referred to as carriers, among others. Each frequency can support a single RAT within a given geographical area to avoid interference between wireless networks of different RATs. In some cases, an NR or 5G RAT network can be deployed.

[0025]

[0029] In some aspects, two or more UEs 120 (such as those shown as UE120a and UE120e) may communicate directly with each other using one or more sidelink channels (such as without using base station 110 as a medium for communicating with each other). For example, UE120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (which may include, for example, vehicle-to-vehicle (V2V) protocols or vehicle-to-infrastructure (V2I) protocols), mesh networks, or combinations thereof. In such examples, UE120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere in this specification as being performed by base station 110.

[0026]

[0030] Devices in a wireless network can communicate using an electromagnetic spectrum that can be re - divided into various classes, bands, or channels based on frequency or wavelength. For example, a device in a wireless network can communicate using an operating band that has a first frequency range (FR1) that can span from 410 MHz to 7.125 gigahertz (GHz). As another example, a device in a wireless network can communicate using an operating band that has a second frequency range (FR2) that can span from 24.25 GHz to 52.6 GHz. Frequencies between FR1 and FR2 may sometimes be referred to as mid - band frequencies. A portion of FR1 is greater than 6 GHz, but FR1 is often referred to as the "sub - 6 GHz" band. Similarly, although FR2 is different from the extremely high frequency (EHF) band (30 GHz - 300 GHz) identified as the "millimeter - wave" band by the International Telecommunication Union (ITU), it is often referred to as "millimeter - wave". Thus, unless otherwise specified, it should be understood that the term "sub - 6 GHz" can broadly represent frequencies less than 6 GHz, frequencies within FR1, mid - band frequencies (e.g., greater than 7.125 GHz), or combinations thereof. Similarly, unless otherwise specified, it should be understood that the term "millimeter - wave" can broadly represent frequencies within the EHF band, frequencies within FR2, mid - band frequencies (e.g., less than 24.25 GHz), or combinations thereof. The frequencies included in FR1 and FR2 can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0027]

[0031] Figure 2 is a diagram showing an exemplary base station communicating with a UE in a wireless network according to various aspects of the present disclosure. The base station can correspond to base station 110 of FIG. 1. Similarly, the UE can correspond to UE 120 of FIG. 1.

[0028]

[0032] The base station 110 may be equipped with T antennas 234a to 234t, and the UE 120 may be equipped with R antennas 252a to 252r, where generally T≥1 and R≥1. At the base station 110, the transmission processor 220 receives data from the data source 212 for one or more UEs, selects one or more modulation and coding schemes (MCSs) for each UE based at least in part on the channel quality indicator (CQI) received from the UE, processes (e.g., encodes) the data for each UE based at least in part on the selected (one or more) MCSs for that UE, and may provide data symbols for all UEs. The transmission processor 220 may also process system information and control information (e.g., CQI requests, grants, or upper layer signaling, such as semi-static resource partitioning information (SRPI) for example) and provide overhead symbols and control symbols. The transmission processor 220 may also generate reference symbols for reference signals and synchronization signals. The transmit (TX) multiple input multiple output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, control symbols, overhead symbols, or reference symbols, if applicable, and may provide T output symbol streams to T modulators (MOD) 232a to 232t. Each MOD232 may process each output symbol stream (e.g., for OFDM for example) to obtain an output sample stream. Each MOD232 may further process the output sample stream (e.g., convert to analog, amplify, filter, and upconvert) to obtain a downlink signal. The T downlink signals from MOD232a to 232t may be transmitted via the T antennas 234a to 234t, respectively.

[0029]

[0033] In UE120, antennas 252a - 252r can receive downlink signals from base station 110 or other base stations, and can provide the received signals to R demodulators (DEMOD) 254a - 254r respectively. Each DEMOD 254 can adjust (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each DEMOD 254 can further process the input samples (e.g., for OFDM) to obtain received symbols. The MIMO detector 256 can obtain received symbols from all R DEMODs 254a - 254r, perform MIMO detection on the received symbols if applicable, and provide the detected symbols. The receiving processor 258 can process (e.g., decode) the detected symbols, provide the decoded data for UE120 to the data sink 260, and provide the decoded control information and system information to the controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination of one or more controllers and one or more processors. The channel processor can determine one or more of, among other examples, the reference signal received power (RSRP) parameter, the received signal strength indicator (RSSI) parameter, the reference signal received quality (RSRQ) parameter, or the channel quality indicator (CQI) parameter. In some aspects, one or more components of UE120 can be included in a housing.

[0030]

[0034] The network controller 130 can include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 can include, for example, one or more devices in the core network. The network controller 130 can communicate with the base station 110 via the communication unit 294.

[0031]

[0035] Antennas (such as antennas 234a to 234t or antennas 252a to 252r) may include, or be included within, one or more antenna panels, antenna groups, sets of antenna elements, or antenna arrays, among other examples. The antenna panel, antenna group, set of antenna elements, or antenna array may include one or more antenna elements. The antenna panel, antenna group, set of antenna elements, or antenna array may include a set of coplanar antenna elements or a set of non-coplanar antenna elements. The antenna panel, antenna group, set of antenna elements, or antenna array may include antenna elements within a single housing or antenna elements within multiple housings. The antenna panel, antenna group, set of antenna elements, or antenna array may include one or more antenna elements coupled to one or more transmit or receive components, such as one or more of the components of FIG. 2.

[0032]

[0036] On the uplink, at the UE 120, a transmission processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (for example, for reports including RSRP, RSSI, RSRQ, or CQI). The transmission processor 264 may also generate reference symbols for one or more reference signals. Symbols from the transmission processor 264 may be precoded by a TX MIMO processor 266, if applicable, and further processed by MOD254a - 254r (for example, for discrete Fourier transform spread orthogonal frequency division multiplexing (DFT - s - OFDM) or orthogonal frequency division multiplexing with cyclic prefix (CP - OFDM)) and transmitted to the base station 110. In some aspects, a modulator and demodulator (for example, MOD / DEMOD254) of the UE 120 may be included in the modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of (one or more) antennas 252, a modulator 254, a demodulator 254, a MIMO detector 256, a reception processor 258, a transmission processor 264, or a TX MIMO processor 266. The transceiver may be used by a processor (for example, a controller / processor 280) and a memory 282 to implement any aspect of the methods described herein.

[0033]

[0037] At base station 110, uplink signals from UE 120 and other UEs are received by antenna 234, processed by DEMOD 232, detected by MIMO detector 236 when applicable, and further processed by receive processor 238 to obtain the decoded data and control information sent by UE 120. Receive processor 238 may provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 for scheduling UE 120 for downlink and uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of base station 110 may be included in the modem of base station 110. In some aspects, base station 110 includes a transceiver. The transceiver may include any combination of (one or more) antennas 234, modulator 232, demodulator 232, MIMO detector 236, receive processor 238, transmit processor 220, or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to implement any aspect of the methods described herein.

[0034]

[0038] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, or any other component(s) of FIG. 2 may perform one or more techniques related to channel-specific maximum allowable exposure reporting, as described in more detail elsewhere in this specification. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, or any other component(s) of FIG. 2 may perform or direct the operations of, for example, the process 400 of FIG. 4 or other processes described herein. Memories 242 and 282 may store data and program code for the base station 110 and the UE 120, respectively. In some aspects, memory 242 or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code or program code) for wireless communication. For example, when the one or more instructions are executed by one or more processors of the base station 110 or the UE 120 (e.g., directly or after compilation, conversion, or interpretation), the one or more processors, the UE 120, or the base station 110 may be caused to perform or direct the operations of, for example, the process 400 of FIG. 4 or other processes described herein. In some aspects, executing the instructions may include, among other things, running the instructions, converting the instructions, compiling the instructions, or interpreting the instructions.

[0035]

[0039] In some aspects, UE 120 includes means for generating a maximum permissible exposure (MPE) report for a subset of uplink channels included in a set of uplink channels to be used by UE 120 for transmitting uplink transmissions, where the MPE report includes MPE report information for the subset of uplink channels and identifiers associated with each uplink channel of the subset of uplink channels, and means for transmitting an MPE report associated with the subset of uplink channels to a base station. The means for UE 120 to perform the operations described herein may include, for example, one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller / processor 280, or memory 282.

[0036]

[0040] To limit a user's exposure to radio frequency (RF) emissions, regulatory exposure limits can be imposed on wireless communication devices such as a UE. For example, to limit a user's exposure to RF emissions, a maximum permissible exposure (MPE) can be imposed on a UE operating in a frequency band above 6 GHz. The MPE can be expressed, for example, as power per unit area (i.e., power density). Generally, a UE is configured with a detector capable of detecting the occurrence of a UE exposure limit exceeding the MPE (referred to herein as an MPE event). Upon detection of an MPE event, the UE can implement mitigation, such as applying power reduction (e.g., power management maximum power reduction (P-MPR)) to the UE's uplink transmission (e.g., in a given serving cell of the UE). The UE may also need to send an MPE report to the BS with which the UE is communicating. The MPE report is intended to provide the BS with information that enables the BS to schedule the UE for the current communication appropriately (e.g., using a sufficient number of resource blocks (RBs) assuming the applied power reduction). Conventionally, the MPE report is cell-specific and the reported metric is common to all panels of the UE.

[0037]

[0041] Furthermore, a transmission configuration indicator (TCI) framework implemented in a wireless communication system may utilize separate TCI states to adapt to separate beam indications for uplink and downlink beams. In the case of a downlink TCI state, one or more source reference signals among M (M≥1) TCIs provide quasi-collocation (QCL) information for at least UE-specific reception on a physical downlink shared channel (PDSCH) and for UE-specific reception on all or a subset of control resource sets (CORESETs) in a component carrier. In the case of an uplink TCI state, one or more source reference signals among N (N≥1) TCIs provide a reference for determining one or more common uplink transmission spatial filters for at least a physical uplink shared channel (PUSCH) (e.g., dynamically permitted-based PUSCH or configured-permitted-based PUSCH) and for transmission on all or a subset of dedicated physical uplink control channel (PUCCH) resources in a component carrier. Optionally, the uplink transmission spatial filter may also be applied to all sounding reference signal (SRS) resources in one or more resource sets configured for some uplink transmission (e.g., antenna-switching uplink transmission, codebook-based uplink transmission, or non-codebook-based uplink transmission). Further, to facilitate fast uplink panel selection and MPE mitigation, it may be assumed that the UE's uplink transmission panel is the same as or a subset of the UE's downlink reception panel.

[0038]

[0042] Based on the TCI framework described above, several observations can be made. One observation is that different types of uplink channels (e.g., dynamic grant-based PUSCH, configured grant-based PUSCH, SRS, and PUCCH) can have different requirements for uplink transmission, which means that the robustness against MPE events can vary among uplink channels (depending on the uplink channel type). For example, for an uplink channel of PUCCH or PUSCH with the reported central level of the MPE value, the BS may choose to schedule a smaller bandwidth for the next PUCCH or PUSCH transmission, which can mitigate the impact of the MPE event. Another observation is that the TCI state can be indicated for a set or subset of the UE's uplink channels, which means that the MPE event can occur only for a subset of the uplink channels or for a specific type of uplink channel. Another observation is that the TCI state can be indicated separately for a set or subset of the uplink channels, which means that the MPE report may need to include report information related to a specific uplink TCI state. Another observation is that a set of uplink panels can be a subset of the downlink panels, which means that the MPE report may need to include report information related to a specific set of uplink panels. Based on these observations, it is clear that the UE may need to transmit MPE reports specific to a subset of the UE's uplink channels. However, conventional MPE reports do not support reports with such specificity, which means that MPE reporting in the context of the TCI framework described above does not enable the BS to respond appropriately after an MPE event has been detected and reported by the UE.

[0039]

[0043] Various aspects generally relate to channel-specific MPE reporting. Some aspects relate more particularly to a UE generating and transmitting an MPE report that includes reporting information for a subset of the UE's uplink channels and an identifier associated with each uplink channel of the subset of uplink channels. In some aspects, the identifier can be, for example, an uplink channel type identifier, an uplink panel identifier, an uplink TCI identifier, or a PL-RS identifier. In some aspects, the MPE reporting information can include values for metrics specific to a subset of uplink channels. Further details are provided below.

[0040]

[0044] Certain aspects of the subject matter described in this disclosure can be implemented to realize one or more of the following potential advantages. In some examples, the techniques described can be used to enable channel-specific MPE reporting by a UE. In some aspects, the channel-specific reporting capability enables a UE to transmit MPE reporting information at the channel-specific level, thereby providing the BS with sufficient information to appropriately respond to mitigation actions taken by the UE after detection of an MPE event.

[0041]

[0045] Figures 3A and 3B show an example 300 related to channel-specific MPE reporting according to various aspects of this disclosure. As shown in Figure 3A, example 300 includes communication between BS 110 and UE 120. In some aspects, BS 110 and UE 120 can be included in a wireless network such as wireless network 100. BS 110 and UE 120 can communicate via a wireless access link that can include an uplink and a downlink.

[0042]

[0046] As shown in FIG. 3A, in a first operation 302, a UE (e.g., UE 120) generates an MPE report for a subset of uplink channels. Here, the subset of uplink channels includes one or more uplink channels from the set of uplink channels to be used by the UE to transmit uplink transmissions. In some aspects, the UE generates the MPE report at least partially based on an event (e.g., an MPE event) that triggers the UE to generate an MPE report related to at least the subset of uplink channels upon detection by the UE. In some aspects, the MPE report generated by the UE includes MPE report information for the subset of uplink channels and an identifier associated with each uplink channel in the subset of uplink channels. In some aspects, the MPE report may include MPE report information for a plurality of subsets of uplink channels and identifiers corresponding to each of the plurality of subsets.

[0043]

[0047] In some aspects, the identifier is an uplink channel type identifier associated with each uplink channel in the subset of uplink channels. That is, in some aspects, the identifier identifies the uplink channel type. The type of uplink channel can be, for example, among others, SRS, PUCCH, dynamically permitted-based PUSCH, or configured permitted-based PUSCH. As a specific example, the MPE report may include a power headroom report (PHR) that includes a power management maximum power reduction (P-MPR) value (also referred to as an MPE value). Here, the MPE report may indicate whether the PHR is of type I, type II, or type III, where type I corresponds to PUSCH, type II corresponds to PUCCH, and type III corresponds to SRS.

[0044]

[0048] In some aspects, the identifier is an uplink panel identifier associated with each uplink channel in a subset of uplink channels. In some aspects, the uplink panel identifier can be a compact panel identifier (compared to the panel identifier associated with the downlink identifier panel). As a specific example, the downlink panel of the UE can be identified as Panel A, Panel B, Panel C, and Panel D, and the uplink panel activated by the UE can include only Panel B and C (i.e., the uplink panel can be a subset of the set of downlink panels). Here, the compact uplink panel identifier can be reported using a value of 0 or 1 (e.g., in a single bit), where 0 refers to Panel B and 1 refers to Panel C. For example, when the uplink panel activated by the UE is a subset of the downlink panel of the UE, an MPE report including the uplink panel identifier can be used.

[0045]

[0049] In some implementations, the identifier is an uplink TCI identifier associated with each uplink channel in a subset of uplink channels. For example, the first uplink TCI state can be composed of a first set of PUSCH and PUCCH, and the second uplink TCI state can be composed of a second set of PUSCH and PUCCH. Here, the identifier can correspond to either the first TCI state or the second TCI state. For example, when a common uplink TCI state is applied to different sets of uplink channels, an MPE report including the uplink TCI identifier can be used.

[0046]

[0050] In some aspects, the identifier is a PL-RS identifier associated with each uplink channel in a subset of uplink channels. For example, when PL-RS is reused for a plurality of different uplink channels, an MPE report including the PL-RS identifier can be used.

[0047]

[0051] The MPE report information may include, for example, the value of a reporting metric. Here, the value of the reporting metric is specific to a subset of the uplink channels. That is, in some aspects, the value of the reporting metric may be dedicated to a subset of the uplink channels corresponding to the identifier included in the MPE report. In some aspects, the reporting metric may include, for example, among others, power headroom (PH), P-MPR, maximum transmit power (Pcmax), or Pcmax that account for a P-MPR.

[0048]

[0052] In some aspects, when generating the MPE report, the UE determines the value of the reporting metric based at least in part on whether the uplink transmission is scheduled in any of a subset of the uplink channels. For example, at the time when the MPE report is triggered at the UE, the UE may determine whether the uplink transmission is scheduled in any of a set of uplink channels. Here, if the uplink transmission is scheduled in an uplink channel of a subset of the uplink channels, the UE may determine the value of the reporting metric based at least in part on a set of transmission parameters associated with the uplink channel. Conversely, if the uplink transmission is not scheduled in any of the uplink channels of the subset of the uplink channels, the UE may determine the value of the reporting metric based at least in part on a reference format associated with the set of uplink channels. The reference format may define a set of power control parameters including, for example, among others, PL-RS, target power (P0), closed-loop index, resource allocation, uplink beam, or uplink panel. In some aspects, the MPE report may include an indication of whether the value of the reporting metric is based at least in part on a set of transmission parameters associated with an uplink channel in a subset of the uplink channels or based at least in part on a reference format associated with the subset of the uplink channels.

[0049]

[0053] In some aspects, in the second operation 304, the UE transmits an MPE report related to a subset of the uplink channels to the BS (e.g., BS 110). In some aspects, the BS may receive the MPE report and may utilize the channel-specific MPE report information accordingly (e.g., to respond to a mitigation action taken by the UE after detection of an MPE event). For example, the BS may receive the MPE report and utilize the MPE report information when scheduling the UE for the next uplink communication in a subset of the uplink channels appropriately (e.g., by scheduling the UE using a sufficient amount of RBs assuming a power reduction as indicated to be applied by the UE).

[0050]

[0054] Figure 3B is a diagram showing an example of channel-specific MPE reporting described herein. In the example shown in Figure 3B, the top row includes a cell index indicator (C1 to C7 and reserved bit R), and the three groups of rows below the top row of Figure 3B each include an entry in the MPE report that is related to one of the shown cell index indicators (C6, C4, and C2). As shown, a given entry in the MPE report includes an identifier 306 that identifies a subset of uplink channels related to the entry (e.g., based on channel type, uplink panel, uplink TCI state, or PL-RS). Further shown, a given entry in the MPE report also includes a reported metric value 308 (e.g., PH) for the subset of uplink channels. Further shown, a given entry in the MPE report may include one or more other values, such as a Pcmax value 310 for the subset of uplink channels or an MPE value 314 for the subset of uplink channels. In this example, a given entry in the MPE report includes a value 312 (in the "P" field) indicating whether the value in the "MPE1 or R" field is an MPE (i.e., P-MPR) or a reserved bit. Further shown, a given entry in the MPE report includes a value 316 (in the "V" field) indicating whether the value of one or more reported metrics included in the entry was determined based on transmission parameters related to transmission in one of the uplink channels of the subset of uplink channels or was determined based on a reference format related to the subset of uplink channels.

[0051]

[0055] Figure 4 is a flowchart showing an exemplary process 400, such as may be performed by a UE, in accordance with various aspects of the present disclosure. Exemplary process 400 is an example of operations performed by a UE (e.g., UE 120) related to channel-specific maximum allowable exposure reporting.

[0052]

[0056] As shown in FIG. 4, in some aspects, process 400 may include generating an MPE report for a subset of uplink channels included in the set of uplink channels to be used by the UE to transmit uplink transmissions, where the MPE report includes MPE report information for the subset of uplink channels and an identifier associated with each uplink channel of the subset of uplink channels (block 410). For example, the UE may generate (such as by using the MPE report component 510 shown in FIG. 5) an MPE report for a subset of uplink channels included in the set of uplink channels to be used by the UE to transmit uplink transmissions, as described above, where the MPE report includes MPE report information for the subset of uplink channels and an identifier associated with each uplink channel of the subset of uplink channels.

[0053]

[0057] As further shown in FIG. 4, in some aspects, process 400 may include transmitting an MPE report related to a subset of uplink channels to a base station (block 420). For example, the UE may transmit (such as by using the transmission component 506 shown in FIG. 5) an MPE report related to a subset of uplink channels to a base station, as described above.

[0054]

[0058] Process 400 may include additional aspects, such as any single aspect or any combination of aspects related to one or more other processes described below or elsewhere in this specification.

[0055]

[0059] In a first additional aspect, the identifier is an uplink channel type identifier associated with each uplink channel in the subset of uplink channels.

[0056]

[0060] In a second additional aspect, alone or in combination with the first aspect, the identifier is an uplink panel identifier associated with each uplink channel in a subset of uplink channels.

[0057]

[0061] In a third additional aspect, alone or in combination with one or more of the first aspect and the second aspect, the identifier is an uplink TCI identifier associated with each uplink channel in a subset of uplink channels.

[0058]

[0062] In a fourth additional aspect, alone or in combination with one or more of the first aspect to the third aspect, the identifier is a PL-RS identifier associated with each uplink channel in a subset of uplink channels.

[0059]

[0063] In a fifth additional aspect, alone or in combination with one or more of the first aspect to the fourth aspect, the MPE reporting information includes a value of a reporting metric, and the value of the reporting metric is specific to a subset of uplink channels.

[0060]

[0064] In a sixth additional aspect, alone or in combination with one or more of the first aspect to the fifth aspect, the reporting metric is PH, P-MPR, Pcmax, or Pcmax considering P-MPR.

[0061]

[0065] In a seventh additional aspect, alone or in combination with one or more of the first aspect to the sixth aspect, generating the MPE report comprises determining a value of the reporting metric based at least in part on whether the uplink transmission is scheduled in any of the uplink channels in a subset of uplink channels.

[0062]

[0066] In an eighth additional aspect, alone or in combination with one or more of the first through seventh aspects, the value of the reporting metric is determined based at least in part on a set of transmission parameters associated with the uplink channel when the uplink transmission is scheduled in an uplink channel that is a subset of the uplink channels.

[0063]

[0067] In a ninth additional aspect, alone or in combination with one or more of the first through eighth aspects, the value of the reporting metric is determined based at least in part on a reference format associated with the set of uplink channels when the uplink transmission is not scheduled in any of the uplink channels that are a subset of the uplink channels.

[0064]

[0068] In a tenth additional aspect, alone or in combination with one or more of the first through ninth aspects, the reference format defines a set of power control parameters including at least one of PL-RS, P0, closed-loop index, resource allocation, uplink beam, or uplink panel.

[0065]

[0069] In an eleventh additional aspect, alone or in combination with one or more of the first through tenth aspects, the MPE report includes an indication of whether the value of the reporting metric is based at least in part on a set of transmission parameters associated with the uplink channel in a subset of the uplink channels or based at least in part on a reference format associated with the subset of the uplink channels.

[0066]

[0070] FIG. 5 is a block diagram of an exemplary apparatus 500 for wireless communication according to various aspects of the present disclosure. The apparatus 500 can be a UE, or the UE can include the apparatus 500. In some aspects, the apparatus 500 includes a receiving component 502, a communication manager 504, and a transmitting component 506 that may communicate with each other (e.g., via one or more buses). As shown, the apparatus 500 can communicate with another apparatus 508 (such as a UE, a base station, or another wireless communication device) using the receiving component 502 and the transmitting component 506.

[0067]

[0071] In some aspects, the apparatus 500 can be configured to perform one or more operations described herein with respect to FIGS. 3A and 3B. Additionally or alternatively, the apparatus 500 can be configured to perform one or more processes described herein, such as the process 400 of FIG. 4. In some aspects, the apparatus 500 can include one or more components of the UE described above with respect to FIG. 2.

[0068]

[0072] The receiving component 502 can receive communications from the apparatus 508, such as a reference signal, control information, data communication, or a combination thereof. The receiving component 502 can provide the received communication to one or more other components of the apparatus 500, such as the communication manager 504. In some aspects, the receiving component 502 can perform signal processing on the received communication (such as, among other examples, filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding), and provide the processed signal to one or more other components. In some aspects, the receiving component 502 can include one or more antennas, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the UE described above with respect to FIG. 2.

[0069]

[0073] The transmitting component 506 may transmit communications such as a reference signal, control information, data communication, or a combination thereof to the device 508. In some aspects, the communication manager 504 may generate a communication and transmit the generated communication to the transmitting component 506 for transmission to the device 508. In some aspects, the transmitting component 506 may perform signal processing on the generated communication (such as, among other examples, filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding) and transmit the processed signal to the device 508. In some aspects, the transmitting component 506 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof of the UE described above with respect to FIG. 2. In some aspects, the transmitting component 506 may be collocated with the receiving component 502 in a transceiver.

[0070]

[0074] The communication manager 504 may generate an MPE report for a subset of uplink channels included in a set of uplink channels to be used by the UE to transmit uplink transmissions, where the MPE report includes MPE report information for the subset of uplink channels and an identifier associated with each uplink channel of the subset of uplink channels. The communication manager 504 may transmit the MPE report associated with the subset of uplink channels to the base station or cause the transmitting component 506 to transmit the MPE report associated with the subset of uplink channels to the base station. In some aspects, the communication manager 504 may perform one or more operations described elsewhere in this specification as being performed by one or more components of the communication manager 504.

[0071]

[0075] The communication manager 504 may include a controller / processor, a memory, or a combination thereof of the UE described above with respect to FIG. 2. In some aspects, the communication manager 504 includes a set of components such as the MPE reporting component 510. Alternatively, the set of components may be separate and distinct from the communication manager 504. In some aspects, one or more components of the set of components may include or may be implemented within a controller / processor, a memory, or a combination thereof of the UE described above with respect to FIG. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least partially as software stored in a memory. For example, a component (or a portion of a component) may be stored on a non-transitory computer-readable medium and implemented as instructions or code executable by a controller or processor to perform the functions or operations of the component.

[0072]

[0076] The MPE reporting component 510 may generate an MPE report for a subset of uplink channels included in a set of uplink channels to be used by the UE to transmit uplink transmissions, where the MPE report includes MPE report information for the subset of uplink channels and identifiers associated with each uplink channel of the subset of uplink channels. The transmission component 506 may transmit the MPE report associated with the subset of uplink channels to a base station.

[0073]

[0077] The following provides an overview of some aspects of the present disclosure.

[0074]

[0078] Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising generating a maximum permissible exposure (MPE) report for a subset of uplink channels included in a set of uplink channels to be used by the UE to transmit an uplink transmission, wherein the MPE report includes MPE report information for the subset of uplink channels and identifiers associated with each uplink channel in the subset of uplink channels, and transmitting the MPE report associated with the subset of uplink channels to a base station.

[0075]

[0079] Aspect 2: The method according to aspect 1, wherein the identifier is an uplink channel type identifier associated with each uplink channel in the subset of uplink channels.

[0076]

[0080] Aspect 3: The method according to any one of aspects 1 to 2, wherein the identifier is an uplink panel identifier associated with each uplink channel in the subset of uplink channels.

[0077]

[0081] Aspect 4: The method according to any one of aspects 1 to 3, wherein the identifier is an uplink transmission configuration indicator (TCI) identifier associated with each uplink channel in the subset of uplink channels.

[0078]

[0082] Aspect 5: The method according to any one of aspects 1 to 4, wherein the identifier is a path loss reference signal (PL-RS) identifier associated with each uplink channel in the subset of uplink channels.

[0079]

[0083] Aspect 6: The method according to any one of aspects 1 to 5, wherein the MPE report information includes a value of a reporting metric, and the value of the reporting metric is unique to the subset of uplink channels.

[0080]

[0084] Aspect 7: The method according to aspect 6, wherein the reporting metric is power headroom (PH), power management maximum power reduction (P-MPR), maximum transmit power (Pcmax), or Pcmax considering P-MPR.

[0081]

[0085] Aspect 8: Generating an MPE report comprises determining a value of a reporting metric based at least in part on whether an uplink transmission is scheduled in any of a subset of uplink channels of an uplink channel, the method according to any of aspects 6 to 7.

[0082]

[0086] Aspect 9: The value of the reporting metric is determined based at least in part on a set of transmission parameters associated with an uplink channel when an uplink transmission is scheduled in an uplink channel of a subset of uplink channels, the method according to any of aspects 6 to 8.

[0083]

[0087] Aspect 10: The value of the reporting metric is determined based at least in part on a reference format associated with a set of uplink channels when an uplink transmission is not scheduled in any of a subset of uplink channels of an uplink channel, the method according to any of aspects 6 to 9.

[0084]

[0088] Aspect 11: The method according to aspect 10, wherein the reference format defines a set of power control parameters including at least one of a path loss reference signal (PL-RS), target power (P0), closed loop index, resource allocation, uplink beam, or uplink panel.

[0085]

[0089] Aspect 12: The MPE report includes an indication of whether the value of the reporting metric is based at least in part on a set of transmission parameters associated with an uplink channel of a subset of uplink channels or on a reference format associated with a subset of uplink channels, the method according to any of aspects 6 to 11.

[0086]

[0090] Aspect 13: An apparatus for wireless communication in a device, comprising a processor, a memory coupled to the processor, and instructions stored in the memory, the instructions being executable by the processor to cause the device to perform the method described in one or more of Aspects 1 to 12.

[0087]

[0091] Aspect 14: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the method described in one or more of Aspects 1 to 12.

[0088]

[0092] Aspect 15: An apparatus for wireless communication, comprising at least one means for performing the method described in one or more of Aspects 1 to 12.

[0089]

[0093] Aspect 16: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method described in one or more of Aspects 1 to 12.

[0090]

[0094] Aspect 17: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method described in one or more of Aspects 1 to 12.

[0091]

[0095] The above disclosure provides illustrations and descriptions, and is neither comprehensive nor limiting to the exact forms of the disclosed aspects. Modifications and variations can be made in light of the above disclosure or obtained from the practice of the aspects.

[0092]

[0096] As used herein, the term "component" shall be construed broadly as hardware, firmware, or a combination of hardware and software. A processor as used herein is implemented in hardware, firmware, or a combination of hardware and software. It will be apparent that the systems or methods described herein can be implemented in different forms of hardware, firmware, or a combination of hardware and software. The actual special control hardware or software code used to implement these systems or methods does not limit the aspects. Thus, the operation and behavior of the systems or methods are described herein independently of specific software code, and it is understood that software and hardware can be designed to implement the systems or methods at least in part based on the description herein.

[0093]

[0097] Meeting a threshold value as used herein can, depending on the context, mean, among other examples, that the value is greater than the threshold value, greater than or equal to the threshold value, less than the threshold value, less than or equal to the threshold value, equal to the threshold value, or not equal to the threshold value.

[0094]

[0098] Particular combinations of features are recited in the claims or disclosed herein, but these combinations are not intended to limit the disclosure in its various aspects. Indeed, many of these features may be combined in ways not specifically recited in the claims or disclosed herein. Each dependent claim recited below may depend directly on only one claim, but the disclosure in its various aspects includes each dependent claim in combination with any other claim in the claims. As used herein, the phrase referring to "at least one of" a list of items refers to any combination of those items, including a single member. By way of example, "at least one of a, b, or c" includes a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination having multiple of the same elements (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c, or any other order of a, b, and c).

[0095]

[0099] Any element, act, or instruction used in this specification should not be construed as important or essential unless explicitly described as such. Also, the articles "a" and "an" used in this specification include one or more items and can be used interchangeably with "one or more". Further, the article "the" used in this specification includes one or more items referred to in relation to the article "the" and can be used interchangeably with "one or more". Additionally, the terms "set" and "group" used in this specification include one or more items (e.g., related items, unrelated items, or a combination of related and unrelated items) and can be used interchangeably with "one or more". If only one item is intended, the phrase "only one" or a similar expression is used. Also, the terms "has", "have", "having" and similar terms used in this specification shall be open-ended terms. Furthermore, the phrase "based on" shall mean "at least partially based on" unless otherwise specified. Also, the term "or" used in this specification is inclusive when used consecutively and can be used interchangeably with "and / or" unless otherwise specified (e.g., when used in combination with "either" or "only one of"). The invention described in the original claims of the present application at the time of filing is appended below. [C1] A user equipment (UE) for wireless communication, comprising: a memory; one or more processors operably coupled to the memory; wherein the memory and the one or more processors are configured to: generate a maximum permissible exposure (MPE) report for a subset of uplink channels included in a set of uplink channels to be used by the UE for transmitting uplink transmissions, wherein the MPE report includes: MPE report information for the subset of uplink channels; identifiers associated with each uplink channel of the subset of uplink channels; and transmit the MPE report associated with the subset of uplink channels to a base station. A user equipment (UE) configured to perform the above. [C2] The UE according to [C1], wherein the identifier is an uplink channel type identifier associated with each uplink channel in the subset of uplink channels. [C3] The UE according to [C1], wherein the identifier is an uplink panel identifier associated with each uplink channel in the subset of uplink channels. [C4] The UE according to [C1], wherein the identifier is an uplink transmission configuration indicator (TCI) identifier associated with each uplink channel in the subset of uplink channels. [C5] The UE according to [C1], wherein the identifier is a path loss reference signal (PL-RS) identifier associated with each uplink channel in the subset of uplink channels. [C6] The UE according to [C1], wherein the MPE report information includes a value of a reporting metric, and the value of the reporting metric is specific to the subset of uplink channels. [C7] The UE according to [C6], wherein the reporting metric is power headroom (PH), power management maximum power reduction (P-MPR), maximum transmit power (Pcmax), or Pcmax considering P-MPR. [C8] The UE according to [C6], wherein when generating the MPE report, the one or more processors are configured to determine the value of the reporting metric based at least in part on whether the uplink transmission is scheduled in any of the uplink channels of the subset of the uplink channels. [C9] The UE according to [C8], wherein the value of the reporting metric is determined based at least in part on a set of transmission parameters associated with the uplink channel when the uplink transmission is scheduled in an uplink channel of the subset of the uplink channels. [C10] The UE according to [C8], wherein the value of the reporting metric is determined based at least in part on a reference format associated with the set of uplink channels when the uplink transmission is not scheduled in any of the uplink channels of the subset of the uplink channels. [C11] The UE according to [C10], wherein the reference format defines a set of power control parameters including at least one of a path loss reference signal (PL-RS), a target power (P0), a closed-loop index, a resource allocation, an uplink beam, or an uplink panel. [C12] The UE according to [C6], wherein the MPE report includes an indication of whether the value of the reporting metric is based at least in part on a set of transmission parameters associated with the uplink channels in the subset of the uplink channels or based at least in part on a reference format associated with the subset of the uplink channels. [C13] A method of wireless communication implemented by a user equipment (UE), generating a maximum permissible exposure (MPE) report for a subset of uplink channels included in a set of uplink channels to be used by the UE for transmitting an uplink transmission, wherein the MPE report includes: MPE report information for the subset of uplink channels, and identifiers associated with each uplink channel of the subset of uplink channels, including: transmitting the MPE report associated with the subset of uplink channels to a base station. A method comprising. [C14] The method according to [C13], wherein the identifier is an uplink channel type identifier associated with each uplink channel in the subset of uplink channels. [C15] The method according to [C13], wherein the identifier is an uplink panel identifier associated with each uplink channel in the subset of uplink channels. [C16] The method according to [C13], wherein the identifier is an uplink transmission configuration indicator (TCI) identifier associated with each uplink channel in the subset of uplink channels. [C17] The method according to [C13], wherein the identifier is a path loss reference signal (PL-RS) identifier associated with each uplink channel in the subset of uplink channels. [C18] The method according to [C13], wherein the MPE report information includes a value of a reporting metric, and the value of the reporting metric is specific to the subset of uplink channels. [C19] The method according to [C18], wherein the reporting metric is power headroom (PH), power management maximum power reduction (P-MPR), maximum transmit power (Pcmax), or Pcmax considering P-MPR. [C20] The method according to [C18], wherein generating the MPE report comprises determining the value of the reporting metric based at least in part on whether uplink transmission is scheduled in any of the uplink channels in the subset of uplink channels. [C21] The method according to [C20], wherein the value of the reporting metric is determined based at least in part on a set of transmission parameters associated with the uplink channel when uplink transmission is scheduled in an uplink channel in the subset of uplink channels. [C22] The method according to [C20], wherein the value of the reporting metric is determined based at least in part on a reference format associated with the set of uplink channels when uplink transmission is not scheduled in any of the uplink channels in the subset of uplink channels. [C23] The method according to [C22], wherein the reference format defines a set of power control parameters including at least one of path loss reference signal (PL-RS), target power (P0), closed loop index, resource allocation, uplink beam, or uplink panel. [C24] The method according to [C18], wherein the MPE report includes an indication of whether the value of the reported metric is at least partially based on a set of transmission parameters related to the uplink channel in the subset of uplink channels or at least partially based on a reference format related to the subset of uplink channels. [C25] A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising: One or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to: Generate a maximum permissible exposure (MPE) report for a subset of uplink channels included in a set of uplink channels to be used by the UE to transmit an uplink transmission, wherein the MPE report includes: MPE report information for the subset of uplink channels; and An identifier associated with each uplink channel in the subset of uplink channels; Including; Transmit the MPE report related to the subset of uplink channels to a base station. A non-transitory computer-readable medium that causes the above to occur. [C26] The identifier includes: An uplink channel type identifier associated with each uplink channel in the subset of uplink channels; An uplink panel identifier associated with each uplink channel in the subset of uplink channels; An uplink transmission configuration indicator (TCI) identifier associated with each uplink channel in the subset of uplink channels, or A path loss reference signal (PL-RS) identifier associated with each uplink channel in the subset of uplink channels, The non-transitory computer-readable medium according to [C25], including at least one of them. [C27] The MPE report information includes a value of a reported metric, and the value of the reported metric is specific to the subset of uplink channels. The non-transitory computer-readable medium according to [C25]. [C28] An apparatus for wireless communication, wherein: Means for generating a maximum permissible exposure (MPE) report for a subset of uplink channels included in a set of uplink channels to be used by the apparatus for transmitting uplink transmissions, wherein the MPE report includes MPE report information for the subset of uplink channels, identifiers associated with each uplink channel of the subset of uplink channels, and including means for transmitting the MPE report associated with the subset of uplink channels to a base station, An apparatus comprising [C29] The identifier is an uplink channel type identifier associated with each uplink channel in the subset of uplink channels, an uplink panel identifier associated with each uplink channel in the subset of uplink channels, an uplink transmission configuration indicator (TCI) identifier associated with each uplink channel in the subset of uplink channels, or a path loss reference signal (PL-RS) identifier associated with each uplink channel in the subset of uplink channels, The apparatus according to [C28], comprising at least one of [C30] The MPE report information includes a value of a reporting metric, and the value of the reporting metric is specific to the subset of uplink channels. The apparatus according to [C28].

Claims

1. A user equipment (UE) for wireless communication, comprising: a memory; one or more processors operably coupled to the memory; wherein the memory and the one or more processors are configured to: generate a maximum permitted exposure (MPE) report for a subset of uplink channels included in a set of uplink channels to be used by the UE to transmit an uplink transmission, wherein the subset of uplink channels comprises a plurality of uplink channels related to the same uplink channel type, the same uplink panel, the same uplink transmission configuration indicator (TCI) state, or the same path loss reference signal (PL-RS); the MPE report comprising: MPE report information for the subset of uplink channels; an identifier for identifying the subset of uplink channels, the identifier being related to the plurality of uplink channels of the subset of uplink channels and identifying at least one of the same uplink channel type, uplink panel, TCI state, PL-RS common to the plurality of uplink channels of the subset of uplink channels; and transmit the MPE report related to the subset of uplink channels to a base station. A user equipment (UE) configured to perform the above.

2. The UE according to claim 1, wherein the identifier is an uplink channel type identifier associated with each uplink channel in the subset of uplink channels.

3. The UE according to claim 1, wherein the identifier is an uplink panel identifier associated with each uplink channel in the subset of uplink channels.

4. The UE according to claim 1, wherein the identifier is an uplink transmission configuration indicator (TCI) identifier associated with each uplink channel in the subset of uplink channels.

5. The UE according to claim 1, wherein the identifier is a path loss reference signal (PL-RS) identifier associated with each uplink channel in the subset of uplink channels.

6. The UE according to claim 1, wherein the MPE report information includes a value of a reporting metric, and the value of the reporting metric is unique to the subset of the uplink channels.

7. The UE according to claim 6, wherein the reporting metric is power headroom (PH), power management maximum power reduction (P-MPR), maximum transmit power (Pcmax), or Pcmax considering P-MPR.

8. The UE according to claim 6, wherein the one or more processors are configured to determine the value of the reporting metric based at least in part on whether uplink transmission is scheduled in any of the uplink channels of the subset of uplink channels when generating the MPE report.

9. The UE according to claim 8, wherein the value of the reporting metric is determined based at least in part on a set of transmission parameters associated with the uplink channel when uplink transmission is scheduled in an uplink channel of the subset of uplink channels.

10. The UE according to claim 8, wherein the value of the reporting metric is determined based at least in part on a reference format associated with the set of uplink channels when uplink transmission is not scheduled in any of the uplink channels of the subset of uplink channels.

11. The UE according to claim 10, wherein the reference format defines a set of power control parameters including at least one of path loss reference signal (PL-RS), target power (P0), closed loop index, resource allocation, uplink beam, or uplink panel.

12. The UE according to claim 6, wherein the MPE report includes an indication of whether the value of the reporting metric is based at least in part on a set of transmission parameters associated with an uplink channel in the subset of uplink channels or based at least in part on a reference format associated with the subset of uplink channels.

13. A method of wireless communication implemented by a user equipment (UE), comprising: Generate a maximum permissible exposure (MPE) report for a subset of uplink channels included in a set of uplink channels to be used by the UE to transmit uplink transmissions, where the subset of uplink channels comprises a plurality of uplink channels related to the same uplink channel type, the same uplink panel, the same uplink transmission configuration indicator (TCI) state, or the same path loss reference signal (PL-RS), and the MPE report comprises MPE report information for the subset of uplink channels, and An identifier for identifying the subset of uplink channels, the identifier identifying at least one of the uplink channel type, the uplink panel, the TCI state, the PL-RS common to the plurality of uplink channels of the subset of uplink channels, including Transmit the MPE report related to the subset of uplink channels to the base station, comprising a method. **Claim 14** The method according to claim 13, wherein the identifier is an uplink channel type identifier associated with each uplink channel in the subset of uplink channels. **Claim 15** The method according to claim 13, wherein the identifier is an uplink panel identifier associated with each uplink channel in the subset of uplink channels. **Claim 16** The method according to claim 13, wherein the identifier is an uplink transmission configuration indicator (TCI) identifier associated with each uplink channel in the subset of uplink channels. **Claim 17** The method according to claim 13, wherein the identifier is a path loss reference signal (PL-RS) identifier associated with each uplink channel in the subset of uplink channels. **Claim 18** The method according to claim 13, wherein the MPE report information includes a value of a reporting metric, and the value of the reporting metric is unique to the subset of uplink channels. **Claim 19** The method according to claim 18, wherein the reporting metric is power headroom (PH), power management maximum power reduction (P-MPR), maximum transmit power (Pcmax), or Pcmax considering P-MPR. **Claim 20** Generating the MPE report comprises determining the value of the reporting metric based at least in part on whether the uplink transmission is scheduled in any of the uplink channels of the subset of uplink channels, the method of claim 18.

21. The value of the reporting metric is determined based at least in part on a set of transmission parameters associated with the uplink channel when the uplink transmission is scheduled in an uplink channel of the subset of uplink channels, the method of claim 20.

22. The value of the reporting metric is determined based at least in part on a reference format associated with the set of uplink channels when the uplink transmission is not scheduled in any of the uplink channels of the subset of uplink channels, the method of claim 20.

23. The reference format defines a set of power control parameters including at least one of a path loss reference signal (PL-RS), a target power (P0), a closed loop index, a resource allocation, an uplink beam, or an uplink panel, the method of claim 22.

24. The MPE report includes an indication of whether the value of the reporting metric is based at least in part on a set of transmission parameters associated with an uplink channel in the subset of uplink channels or based at least in part on a reference format associated with the subset of uplink channels, the method of claim 18.

25. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to Generate a maximum permissible exposure (MPE) report for a subset of uplink channels included in a set of uplink channels to be used by the UE to transmit uplink transmissions, where the subset of uplink channels comprises a plurality of uplink channels related to the same uplink channel type, the same uplink panel, the same uplink transmission configuration indicator (TCI) state, or the same path loss reference signal (PL-RS), and the MPE report includes MPE report information for the subset of uplink channels, and An identifier for identifying the subset of uplink channels, the identifier identifying at least one of the uplink channel type, the uplink panel, the TCI state, the PL-RS that is common to the plurality of uplink channels in the subset of uplink channels, Including, Transmit the MPE report related to the subset of uplink channels to a base station, A non-transitory computer-readable medium that causes this to be performed. **Claim 26** The identifier is An uplink channel type identifier associated with each uplink channel in the subset of uplink channels, An uplink panel identifier associated with each uplink channel in the subset of uplink channels, An uplink transmission configuration indicator (TCI) identifier associated with each uplink channel in the subset of uplink channels, or A path loss reference signal (PL-RS) identifier associated with each uplink channel in the subset of uplink channels, The non-transitory computer-readable medium according to claim 25, comprising at least one of them. **Claim 27** The MPE report information includes a value of a reporting metric, and the value of the reporting metric is unique to the subset of uplink channels. The non-transitory computer-readable medium according to claim 25. **Claim 28** An apparatus for wireless communication, Means for generating a maximum permissible exposure (MPE) report for a subset of uplink channels included in a set of uplink channels to be used by the apparatus for uplink transmission, wherein the subset of uplink channels comprises a plurality of uplink channels related to the same uplink channel type, the same uplink panel, the same uplink transmission configuration indicator (TCI) state, or the same path loss reference signal (PL-RS), and the MPE report comprises MPE report information for the subset of uplink channels, and An identifier for identifying the subset of uplink channels, the identifier identifying at least one of the uplink channel type, the uplink panel, the TCI state, the PL-RS common to the plurality of uplink channels of the subset of uplink channels, Including, Means for transmitting the MPE report related to the subset of uplink channels to a base station, Comprising, an apparatus.

29. The identifier is An uplink channel type identifier related to each uplink channel in the subset of uplink channels, An uplink panel identifier related to each uplink channel in the subset of uplink channels, An uplink transmission configuration indicator (TCI) identifier related to each uplink channel in the subset of uplink channels, or, A path loss reference signal (PL-RS) identifier related to each uplink channel in the subset of uplink channels, The apparatus according to claim 28, comprising at least one of.

30. The MPE report information includes a value of a reporting metric, and the value of the reporting metric is unique to the subset of uplink channels. The apparatus according to claim 28.

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