Performance monitoring metric for channel state information predictions
Patent Information
- Application Number
- PCT/CN2025/084900
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-10-01
Smart Images

Figure CN2025084900_01102026_PF_FP_ABST
Abstract
Description
PERFORMANCE MONITORING METRIC FOR CHANNEL STATE INFORMATION PREDICTIONSFIELD OF THE DISCLOSURE
[0001] Aspects of the present disclosure generally relate to wireless communication and specifically relate to techniques, apparatuses, and methods associated with performance monitoring metrics for channel state information predictions. DESCRIPTION OF THE RELATED TECHNOLOGY
[0002] Wireless communication systems are widely deployed to provide various services, which may involve carrying or supporting voice, text, other messaging, video, data, or other traffic. Typical wireless communication systems may employ multiple-access radio access technologies (RATs) capable of supporting communication among multiple wireless communication devices including user devices or other devices by sharing the available system resources (for example, time domain resources, frequency domain resources, spatial domain resources, or device transmit power, among other examples) . Such multiple-access RATs are supported by technological advancements that have been adopted in various telecommunication standards, which define common protocols that enable different wireless communication devices to communicate on a local, municipal, national, regional, or global level. An example telecommunication standard is New Radio (NR) . NR, which also may be referred to as 5G, is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) . As the demand for connectivity continues to increase, further improvements in NR may be implemented, and other RATs, such as 6G and beyond, may be introduced to enable new applications and facilitate new use cases.
[0003] In some wireless communication systems, a user equipment (UE) may be configured to perform channel measurements and report channel state information (CSI) to a network node. For example, the UE may monitor for a CSI reference signal (CSI-RS) received from the network node, and the UE may compute the CSI in accordance with one or more measurements of the CSI-RS. In some examples, the UE may transmit a CSI report that indicates the CSI, and the CSI may provide the network node with information for adapting communications with the UE to current channel conditions. For example, the network node may obtain a precoder or other channel parameters for downlink messages in accordance with the reported CSI.SUMMARY
[0004] The systems, methods, and devices of this disclosure each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein.
[0005] Some aspects described herein relate to a user equipment (UE) . The UE may include a processing system. The processing system may include one or more processors and one or more code-storing memories coupled with the one or more processors. The processing system may be configured to cause the UE to transmit, to a network node, a first channel state information (CSI) report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window. The processing system may be configured to cause the UE to transmit, to the network node, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.
[0006] Some aspects described herein relate to a network node. The network node may include a processing system. The processing system may include one or more processors and one or more code-storing memories coupled with the one or more processors. The processing system may be configured to cause the network node to receive, from a UE, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window. The processing system may be configured to cause the network node to receive, from the UE, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.
[0007] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include transmitting, to a network node, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window. The method may include transmitting, to the network node, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.
[0008] Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include receiving, from a UE, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window. The method may include receiving, from the UE, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.
[0009] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a UE. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit, to a network node, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit, to the network node, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.
[0010] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a network node. The set of instructions, when executed by one or more processors of the network node, may cause the network node to receive, from a UE, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window. The set of instructions, when executed by one or more processors of the network node, may cause the network node to receive, from the UE, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.
[0011] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting, to a network node, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window. The apparatus may include means for transmitting, to the network node, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.
[0012] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving, from a UE, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window. The apparatus may include means for receiving, from the UE, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.
[0013] Aspects of the present disclosure may generally be implemented by or as a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, network node, wireless communication device, or processing system as substantially described in the Detailed Description with reference to, and as illustrated by, the accompanying drawings. Details of one or more implementations of the subject matter described in this disclosure are set forth in the accompanying drawings and the description below. Other features, aspects, and advantages will become apparent from the description, the drawings, and the claims. Note that the relative dimensions of the following figures may not be drawn to scale.BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Fig. 1 is a diagram illustrating an example of a wireless communication network.
[0015] Fig. 2 is a diagram illustrating examples of channel state information (CSI) reference signal beam management procedures.
[0016] Fig. 3 is a diagram illustrating an example architecture of a functional framework for radio access network intelligence enabled by data collection.
[0017] Fig. 4 is a diagram illustrating an example of CSI predictions and performance monitoring metric reporting.
[0018] Fig. 5 is a diagram illustrating examples of measurement collection for a performance monitoring metric.
[0019] Fig. 6 is a diagram illustrating examples of timings associated with performance monitoring CSI reports.
[0020] Fig. 7 is a diagram illustrating an example process performed, for example, at a user equipment or an apparatus of a user equipment.
[0021] Fig. 8 is a diagram illustrating an example process performed, for example, at a network node or an apparatus of a network node.
[0022] Fig. 9 is a diagram of an example apparatus for wireless communication.
[0023] Fig. 10 is a diagram of an example apparatus for wireless communication.DETAILED DESCRIPTION
[0024] In some wireless communication systems, a user equipment (UE) may be configured to perform channel measurements and report channel state information (CSI) to a network node. For example, the UE may monitor for a CSI reference signal (CSI-RS) received from the network node, and the UE may compute the CSI in accordance with one or more measurements of the CSI-RS. In some examples, the UE may transmit a CSI report that indicates the CSI, and the CSI may provide the network node with information for adapting communications with the UE to current channel conditions. For example, the network node may obtain a precoder or other channel parameters for downlink messages in accordance with the reported CSI.
[0025] In some examples, CSI reports may be associated with one or more priority rules. For example, a CSI report may be given a priority value (e.g., PriiCSI) , and the priority value may depend on whether the CSI report is an aperiodic report, a semi-persistent report, or a periodic CSI report, whether the CSI report is transmitted via a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH) , a content of the CSI report, parameters associated with a serving cell of the UE associated with the CSI report, or other parameters associated with the CSI report. In some examples, a first CSI report may have priority over a second CSI report if the priority value of the first CSI report is lower than the value for the second CSI report, and the first CSI report may be transmitted in cases where transmission occasions for the first CSI report and the second CSI report at least partially overlap.
[0026] In some cases, CSI measurement and reporting may be associated with delays due to the processing associated with the CSI and the signaling between the UE and the network node. For example, there may be a delay associated with the time for the UE to measure a CSI-RS, compute the CSI, and transmit a CSI report, and for the network node to obtain communication parameters in accordance with the CSI for transmission of a downlink message. Consequently, when the network node performs the transmission of the downlink message, the CSI may no longer accurately represent the channel conditions, particularly in conditions where channel conditions are rapidly changing (e.g., environments with high UE mobility) .
[0027] Accordingly, the UE may be configured to predict CSI for a prediction window occurring in the future in accordance with one or more CSI-RS measurements performed prior to the prediction window (e.g., historical CSI measurements) . For example, the UE may be configured to predict future CSI using data-driven approaches, such as artificial intelligence or machine learning (AI / ML) approaches or classical approaches (e.g., non-AI / ML approaches) . In some examples, the UE may report the predicted CSI in a CSI report (e.g., an inference CSI report) , and the predicted CSI may be used by the network node to apply a precoder or other communication parameters for downlink communications. Therefore, the predicted CSI may be used to account for the delay associated with CSI measurements, processing, and signaling, and the application of transmission parameters in accordance with the CSI at the network node.
[0028] In some cases, however, CSI predictions may not be accurate and may not align with actual channel conditions during the prediction window. Consequently, the transmission parameters applied by the network node may cause degradation in communication performance relative to using CSI parameters that align with the actual channel conditions. Accordingly, the UE may be configured to transmit a performance monitoring CSI report, which may be used to evaluate the efficacy of the CSI predictions. For example, when CSI predictions are not accurate to the actual channel conditions, the network node may transmit signaling to deactivate CSI predictions for the UE, and the UE may return to reporting non-predicted CSI. However, there may be uncertainty associated with information to be included in the performance monitoring report or how to obtain such information. For example, the UE may perform additional CSI measurements to evaluate the CSI predictions, and there may be a tradeoff between configuring the UE to evaluate the CSI predictions using the additional CSI measurements and reporting an evaluation outcome, or configuring the UE to report the additional CSI measurements for evaluation at the network node. Additionally, priority values for CSI reports do not account for whether a CSI report is a performance monitoring report. Consequently, when a performance monitoring CSI report is deprioritized (e.g., dropped in favor of another CSI report) , CSI predictions may continue to be used even when the performance monitoring CSI report indicates that the CSI predictions are not accurate to actual channel conditions.
[0029] Various aspects relate generally to a performance monitoring metric for CSI predictions. Some aspects more specifically relate to obtaining and reporting the performance monitoring metric or a performance monitoring metric output (e.g., a decision output) via a performance monitoring CSI report, and priority rules for the performance monitoring CSI report. In some aspects, the performance monitoring metric may be obtained in accordance with one or more CSI-RSs measured prior to the prediction window. Additionally, or alternatively, the performance monitoring metric may be obtained in accordance with one or more CSI-RSs measured during the prediction window (e.g., to obtain actual or ground truth CSI values) . In some aspects, the UE may be configured to measure only one CSI-RS during the prediction window, a portion of CSI-RSs configured for the prediction window, or all of the CSI-RSs configured for the prediction window. Additionally, some aspects relate to a granularity for the performance monitoring metric and quantization techniques for reporting the performance monitoring metric. Some aspects relate to reporting a decision output associated with the CSI predictions in accordance with the performance monitoring metric, which may include requesting a deactivation of the CSI predictions, reporting the satisfaction of one or more thresholds, or a request to adjust one or more parameters associated with the CSI predictions. In some aspects, the UE may be configured to transmit, in a capability report, an indication of decision outputs or other information that the UE may include in the performance monitoring CSI report, and the network node may configure the UE to transmit performance monitoring CSI reports in accordance with the capability report. Additionally, in some aspects, a priority rule associated with CSI reports may be based on whether the CSI report includes performance monitoring information.
[0030] Particular 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 described techniques can be used to configure the UE to provide the network node with information for evaluation of predictive CSI models. For example, by indicating the performance monitoring metric or a decision output associated with CSI predictions, the network node may adaptively switch between configuring predictive CSI and non-predictive CSI reporting for the UE, which may improve CSI reporting relative to only using one of predictive or non-predictive techniques. Additionally, by transmitting a capability report indicating information that the UE supports including in a performance monitoring CSI report, the network node may configure the UE to report suggested decision outputs associated with CSI predictions, which may reduce processing and overhead at the network node associated with evaluating the performance monitoring metric to obtain decision outputs. Alternatively, the network node may configure the UE to report the performance monitoring metric, and the network node may obtain decision outputs based on the reported performance monitoring metric, which may reduce processing at the UE associated with evaluating decision outputs. Additionally, the priority rule for CSI reports being dependent on whether the CSI report includes performance monitoring information may be used to prioritize CSI reports that include performance monitoring information, which may improve CSI reporting performance. For example, when CSI predictions are inaccurate, prioritizing a performance monitoring CSI report may ensure that the CSI report is transmitted and that the network node may adjust or deactivate CSI predictions in accordance with the CSI report.
[0031] 5G New Radio (NR) may support enhanced mobile broadband (eMBB) access, Internet of Things (IoT) networks or reduced capability (RedCap) device deployments, ultra-reliable low-latency communication (URLLC) applications, or massive machine-type communication (mMTC) , among other examples. To support these and other target verticals, a wireless communication system may be designed to implement a modularized functional infrastructure, a disaggregated and service-based network architecture, network function virtualization, network slicing, multi-access edge computing, millimeter wave (mmWave) technologies including massive multiple-input multiple-output (MIMO) , beamforming, IoT device or RedCap device connectivity and management, industrial connectivity, licensed and unlicensed spectrum access, sidelink and other device-to-device direct communication (for example, cellular vehicle-to-everything (CV2X) communication) , frequency spectrum expansion, overlapping spectrum use, small cell deployments, non-terrestrial network (NTN) deployments, device aggregation, advanced duplex communication (for example, sub-band full-duplex (SBFD) ) , multiple-subscriber implementations, high-precision positioning, radio frequency (RF) sensing, network energy savings (NES) , low-power signaling and radios, or AI / ML, among other examples.
[0032] The foregoing and other technological improvements may support use cases, such as wireless fronthauls, wireless midhauls, wireless backhauls, wireless data centers, extended reality (XR) and metaverse applications, meta services for supporting vehicle connectivity, holographic and mixed reality communication, autonomous and collaborative robots, vehicle platooning and cooperative maneuvering, sensing networks, gesture monitoring, human-brain interfacing, digital twin applications, asset management, and universal coverage applications using non-terrestrial or aerial platforms, among other examples.
[0033] The methods, operations, apparatuses, and techniques described herein may enable one or more of the foregoing technologies or new technologies or support one or more of the foregoing use cases or new use cases.
[0034] Fig. 1 is a diagram illustrating an example of a wireless communication network 100. The wireless communication network 100 may be or may include elements of a 5G network or a 6G network, among other examples. The wireless communication network 100 may include multiple network nodes 110. For example, in Fig. 1, the wireless communication network 100 includes multiple network nodes 110, including a network node 110a and a network node 110b (each of which also may be referred to herein simply as a “network node 110” ) . The network nodes 110 may support communications with multiple UEs 120. For example, in Fig. 1, the network nodes 110 support communication with a UE 120a, a UE 120b, and a UE 120c (each of which also may be referred to herein simply as a “UE 120” ) . In some examples, a UE 120 also may communicate with other UEs 120 and a network node 110 also may communicate with a core network and with other network nodes 110.
[0035] The network nodes 110 and the UEs 120 of the wireless communication network 100 communicate using the electromagnetic spectrum, which may be subdivided into various licensed or unlicensed operating bands, frequency ranges, component carriers, or channels that define associated frequencies available for communications. In some examples, each of the network nodes 110 and the UEs 120 may communicate using one or multiple component carriers in one or more operating bands or ranges. Typically, various operating bands are defined as frequency range designations FR1 (410 MHz through 7.125 GHz) , FR2 (24.25 GHz through 52.6 GHz) , FR3 (7.125 GHz through 24.25 GHz) , FR4a or FR4-1 (52.6 GHz through 71 GHz) , FR4 (52.6 GHz through 114.25 GHz) , and FR5 (114.25 GHz through 300 GHz) . Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “sub-6 GHz” band in some documents and articles. Similarly, FR2 is often referred to (interchangeably) as a “millimeter wave” band in some documents and articles.
[0036] A network node 110 or a UE 120 may include one or more devices, components, or systems that enable communication with other devices, components, or systems of the wireless communication network 100. For example, a UE 120 and a network node 110 may each include one or more chips, system-on-chips (SoCs) , chipsets, packages, or devices that individually or collectively constitute or comprise a processing system. As shown in Fig. 1, each UE 120 includes a processing system 140 and each network node 110 includes a processing system 145. A processing system (for example, the processing system 140 or the processing system 145) includes processor (or “processing” ) circuitry in the form of one or multiple processors, microprocessors, processing units (such as central processing units (CPUs) , graphics processing units (GPUs) , neural processing units (NPUs) (also referred to as neural network processors or deep learning processors (DLPs) ) , or digital signal processors (DSPs) ) , processing blocks, application-specific integrated circuits (ASICs) , programmable logic devices (PLDs) , or other discrete gate or transistor logic or circuitry (any one or more of which may be generally referred to herein individually as a “processor” or collectively as “the processor” or “the processor circuitry” ) . Such processors may be individually or collectively configurable or configured to perform various functions or operations described herein. A group of processors collectively configurable or configured to perform a set of functions may include a first processor configurable or configured to perform a first function of the set and a second processor configurable or configured to perform a second function of the set. In some other examples, each of a group of processors may be configurable or configured to perform a same set of functions.
[0037] The processing system 140 and the processing system 145 may each include memory circuitry in the form of one or multiple memory devices, memory blocks, memory elements, or other discrete gate or transistor logic or circuitry, each of which may include or implement tangible storage media, such as random-access memory, or read-only memory, or combinations thereof (any one or more of which may be generally referred to herein individually as a “memory” or collectively as “the memory” or “the memory circuitry” ) . One or more of the memories may be coupled (for example, operatively coupled, communicatively coupled, electronically coupled, or electrically coupled) with one or more of the processors. One or more of the memories may individually or collectively store processor-executable code or instructions (such as software) (for example, which may be referred to as “one or more code-storing memories” or “code-storing memory circuitry” ) . For example, “code-storing memory” or “code-storing memory circuitry” refers to memory (or memory circuitry) that is configured to store processor-executable code or instructions. The processor-executable code or instructions, when executed by one or more of the processors, may configure one or more of the processors (or processing circuitry) to perform various functions or operations described herein. Additionally, or alternatively, in some examples, one or more of the processors may be configured to perform various functions or operations described herein without requiring configuration by software. Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, or functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
[0038] The processing system 140 and the processing system 145 may each include or be coupled with one or more modems (such as a cellular (for example, a 5G or 6G compliant) modem) . In some examples, one or more processors of the processing system 140 or the processing system 145 may include or implement one or more of the modems. The processing system 140 and the processing system 145 also may include or be coupled with multiple radios (collectively “the radio” ) , multiple RF chains, or multiple transceivers, each of which may in turn be coupled with one or more of multiple antennas. In some examples, one or more processors of the processing system 140 or the processing system 145 may include or implement one or more of the radios, RF chains, or transceivers. An RF chain may include one or more filters, mixers, oscillators, amplifiers, analog-to-digital converters (ADCs) , or other devices that convert between an analog signal (such as for transmission or reception via an air interface) and a digital signal (such as for processing by the processing system 140 or by the processing system 145) .
[0039] A network node 110 and a UE 120 may each include one or multiple antennas or antenna arrays. Typical network nodes 110 and UEs 120 may include multiple antennas, which may be organized or structured into one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, among other examples. As used herein, the term “antenna” can refer to one or more antennas, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays. The term “antenna panel” can refer to a group of antennas (such as antenna elements) arranged in an array or panel, which may facilitate beamforming by manipulating parameters associated with the group of antennas. The term “antenna module” may refer to circuitry including one or more antennas as well as one or more other components (such as filters, amplifiers, or processors) associated with integrating the antenna module into a wireless communication device, such as the network node 110 and the UE 120.
[0040] A network node 110 may be, may include, or also may be referred to as an NR network node, a 5G network node, a 6G network node, a Node B, a gNB, an access point (AP) , a transmission reception point (TRP) , a network entity, a network element, a network equipment, or another type of device, component, or system included in a radio access network (RAN) . In various deployments, a network node 110 may be implemented as a single physical node (for example, a single physical structure) or may be implemented as two or more physical nodes (for example, two or more distinct physical structures) . For example, a network node 110 may be a device or system that implements a part of a radio protocol stack, a device or system that implements a full radio protocol stack (such as a full gNB protocol stack) , or a collection of devices or systems that collectively implement the full radio protocol stack. For example, and as shown, a network node 110 may be an aggregated network node having an aggregated architecture, meaning that the network node 110 may implement a full radio protocol stack that is physically and logically integrated within a single physical structure in the wireless communication network 100. For example, an aggregated network node 110 may include a single standalone base station or a single TRP that operates with a full radio protocol stack to enable or facilitate communication between a UE 120 and a core network of the wireless communication network 100.
[0041] Alternatively, a network node 110 may be a disaggregated network node 110 (sometimes referred to as a disaggregated base station) , having a disaggregated architecture, meaning that the network node 110 may operate with a radio protocol stack that is physically distributed or logically distributed among two or more nodes in the same geographic location or in different geographic locations. In some deployments, disaggregated network nodes 110 may be used in an integrated access and backhaul (IAB) network, in an open radio access network (O-RAN) (such as a network configuration in compliance with the O-RAN Alliance) , or in a virtualized radio access network (vRAN) , also known as a cloud radio access network (C-RAN) , to facilitate scaling by separating network functionality into multiple units or modules that can be individually deployed.
[0042] The disaggregated network nodes 110 of the wireless communication network 100 may include one or more central units (CUs) , one or more distributed units (DUs) , and one or more radio units (RUs) . A CU may host one or more higher layers, such as a radio resource control (RRC) layer, a packet data convergence protocol (PDCP) layer, and a service data adaptation protocol (SDAP) layer, among other examples. A CU can communicate with a core network either directly (for example, via a backhaul link) or indirectly (for example, via one or more disaggregated control units, such as a non-real-time (Non-RT) RAN intelligent controller (RIC) associated with a Service Management and Orchestration (SMO) framework or a near-real-time (Near-RT) RIC) . A DU may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, or one or more higher physical (PHY) layers depending, at least in part, on a functional split, such as a functional split defined by the 3GPP. In some examples, a DU also may host a lower PHY layer that is configured to perform functions, such as a fast Fourier transform (FFT) , an inverse FFT (IFFT) , beamforming, or physical random access channel (PRACH) extraction and filtering, among other examples. An RU may perform RF processing functions or lower PHY layer functions, such as an FFT, an IFFT, beamforming, or PRACH extraction and filtering, among other examples, according to a functional split, such as a lower layer split (LLS) . In such an architecture, each RU can be operated to handle over the air (OTA) communication with one or more UEs 120. A CU may communicate with one or more DUs via respective midhaul links, such as via F1 interfaces. Each of the DUs may communicate with one or more RUs via respective fronthaul links. Each of the RUs may communicate with one or more UEs 120 via respective RF access links. In some deployments, a UE 120 may be simultaneously served by multiple RUs.
[0043] In some examples, a single network node 110 may include a combination of one or more CUs, one or more DUs, or one or more RUs. In some examples, a CU, a DU, or an RU may be implemented as a virtual unit, such as a virtual central unit (VCU) , a virtual distributed unit (VDU) , or a virtual radio unit (VRU) , among other examples, which may be implemented as a virtual network function, such as in a cloud deployment (for example, an open cloud (O-Cloud) platform) . An SMO framework may support RAN deployment and provisioning of non-virtualized and virtualized network elements.
[0044] In some examples, the wireless communication network 100 may be a heterogeneous network that includes network nodes 110 of various types. Different types of network nodes 110 may generally operate on the same or different operating bands, transmit at different power levels, or serve different coverage areas, each of which may be referred to as or associated with a particular cell 130 (for example, a cell 130a and a cell 130b) .
[0045] The UEs 120 may be physically dispersed throughout the coverage area of the wireless communication network 100, and each UE 120 may be stationary or mobile. A UE 120 may be, may include, or also may be referred to as an access terminal, a mobile station, a client device, or a subscriber unit. A UE 120 may be, include, or be coupled with a cellular phone (for example, a smart phone) , a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (for example, a smart watch, smart clothing, smart glasses, a smart wristband, or smart jewelry) , a gaming device, an entertainment device (for example, a music device, a video device, or a satellite radio) , an XR device, a vehicular component or sensor, a smart meter or sensor, industrial manufacturing equipment, a Global Navigation Satellite System (GNSS) device (such as a Global Positioning System device or another type of positioning device) , an artificially intelligent robot or other device implementing artificial intelligence, a UE function of a network node, or any other suitable device or function that may communicate in the wireless communication network 100.
[0046] Some UEs 120 may be classified according to different categories in association with different complexities or different capabilities. UEs 120 in a first category may be associated with relatively low complexity or cost such as NB-IoT devices or eMTC UEs. UEs 120 in a second category may include higher complexity or cost devices, such as mission-critical IoT devices, baseline UEs, high-tier UEs, advanced UEs, full-capability UEs, or premium UEs that are capable of URLLC, eMBB, or precise positioning in the wireless communication network 100. A third category of UEs 120 may have mid-tier complexity or capabilities (for example, capabilities between that of the UEs 120 of the first category and the UEs 120 of the second category) . A UE 120 of the third category may be referred to as a reduced capability UE ( “RedCap UE” ) , a mid-tier UE, an NR-Light UE, or an NR-Lite UE, among other examples.
[0047] In some examples, a network node 110 may be, may include, or may operate as an RU, a TRP, or a base station that communicates with one or more UEs 120 via a radio access link (which may be referred to as a “Uu” link) . The radio access link may include a downlink and an uplink. “Downlink” (or “DL” ) refers to a communication direction from a network node 110 to a UE 120, and “uplink” (or “UL” ) refers to a communication direction from a UE 120 to a network node 110. Downlink and uplink resources may include time domain resources (for example, frames, subframes, slots, and symbols) , frequency domain resources (for example, frequency bands, component carriers (CCs) , subcarriers, resource blocks, and resource elements) , and spatial domain resources (for example, particular transmit directions or beams) .
[0048] Frequency domain resources may be subdivided into bandwidth parts (BWPs) . A BWP may be a block of frequency domain resources (for example, a continuous set of resource blocks (RBs) within a full component carrier bandwidth) that may be configured at a UE-specific level. A UE 120 may be configured with both an uplink BWP and a downlink BWP (which may be the same or different) . Each BWP may be associated with its own numerology (indicating a sub-carrier spacing (SCS) and cyclic prefix (CP) ) . A BWP may be dynamically configured or activated (for example, by a network node 110 transmitting a downlink control information (DCI) configuration to the one or more UEs 120) or reconfigured (for example, in real-time or near-real-time) according to changing network conditions in the wireless communication network 100 or specific requirements of one or more UEs 120. An active BWP defines the operating bandwidth of the UE 120 within the operating bandwidth of the serving cell.
[0049] As used herein, a downlink signal may be or include a reference signal, control information, or data. For example, downlink reference signals include a primary synchronization signal (PSS) , a secondary SS (SSS) , an SS block (SSB) (for example, that includes a PSS, an SSS, and a physical broadcast channel (PBCH) ) , a demodulation reference signal (DMRS) , a phase tracking reference signal (PTRS) , a tracking reference signal (TRS) , and a CSI-RS, among other examples. A downlink signal carrying control information or data may be transmitted via a downlink channel. Downlink channels may include one or more control channels for transmitting control information and one or more data channels for transmitting data. Downlink reference signals may be transmitted in addition to, or multiplexed with, downlink control channel communications or downlink data channel communications. A downlink control channel may be specifically used to transmit DCI from a network node 110 to a UE 120. DCI generally contains the information the UE 120 needs to identify RBs in a subsequent subframe and how to decode them, including a modulation and coding scheme (MCS) or redundancy version parameters. Different DCI formats carry different information, such as scheduling information in the form of downlink or uplink grants, slot format indicators (SFIs) , preemption indicators (PIs) , transmit power control (TPC) commands, hybrid automatic repeat request (HARQ) information, new data indicators (NDIs) , among other examples. A downlink data channel may be used to transmit downlink data (for example, user data associated with a UE 120) from a network node 110 to a UE 120. Downlink control channels may include physical downlink control channels (PDCCHs) , and downlink data channels may include physical downlink shared channels (PDSCHs) . Control information or data communications may be transmitted on a PDCCH and PDSCH, respectively. For example, a PDCCH can carry DCI, while a PDSCH can carry a MAC control element (MAC-CE) , an RRC message, or user data, among other examples. Each PDSCH may carry one or more transport blocks (TBs) of data.
[0050] As used herein, an uplink signal may include a reference signal, control information, or data. For example, uplink reference signals include a sounding reference signal (SRS) , a PTRS, and a DMRS, among other examples. An uplink signal carrying control information or data may be transmitted via an uplink channel. An uplink channel may include one or more control channels for transmitting control information and one or more data channels for transmitting data. Uplink reference signals may be transmitted in addition to, or multiplexed with, uplink control channel communications or uplink data channel communications. An uplink control channel may be specifically used to transmit uplink control information (UCI) from a UE 120 to a network node 110. An uplink data channel may be used to transmit uplink data (for example, user data associated with a UE 120) from a UE 120 to a network node 110. Uplink control channels may include PUCCHs, and uplink data channels may include physical uplink shared channels PUSCHs. Control information or data communications may be transmitted on a PUCCH and PUSCH, respectively. For example, a PUCCH can carry UCI, while a PUSCH can carry a MAC-CE, an RRC message, or user data, among other examples. UCI can include a scheduling request (SR) , HARQ feedback information (for example, a HARQ acknowledgement (ACK) indication or a HARQ negative acknowledgement (NACK) indication) , uplink power control information (for example, an uplink TPC parameter) , or CSI, among other examples. CSI can include a channel quality indicator (CQI) (indicative of downlink channel conditions to facilitate selection of transmission parameters, such as an MCS, by a network node 110) , a precoding matrix indicator (PMI) , a CSI-RS resource indicator (CRI) (for example, indicative of a beam used to transmit a CSI-RS) , an SS / PBCH resource block indicator (SSBRI) (for example, indicative of a beam used to transmit an SSB) , a layer indicator (LI) , a rank indicator (RI) , or measurement information (for example, a layer 1 (L1) -reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, among other examples) which can be used for beam management, among other examples. Each PUSCH may carry one or more TBs of data.
[0051] The information (for example, data, control information, or reference signal information) transmitted by a network node 110 to a UE 120, or vice versa, may be represented as a sequence of binary bits that are mapped (for example, modulated) to an analog signal waveform (for example, a discrete Fourier transform (DFT) -spread-orthogonal frequency division multiplexing (OFDM) (DFT-s-OFDM) waveform or a CP-OFDM waveform) that is transmitted by the network node 110 or UE 120 over a wireless communication channel. In some examples, the network node 110 or the UE 120 (for example, using the processing system 145 or the processing system 140, respectively) may select an MCS (for example, an order of quadrature amplitude modulation (QAM) , such as 64-QAM, 128-QAM, or 256-QAM, among other examples) for a downlink signal or an uplink signal. For example, the network node 110 may select an MCS for a downlink signal in accordance with UCI received from the UE 120 or may transmit, to the UE 120, an indication of an MCS to be applied for an uplink signal.
[0052] A network node 110 or a UE 120 (such as by using the processing system 145 or the processing system 140, respectively, or one or more coupled modems) may perform signal processing on the information (such as filtering, amplification, modulation, digital-to-analog conversion, an IFFT operation, multiplexing, interleaving, mapping, or encoding, among other examples) to generate a processed signal in accordance with the selected MCS. In some examples, the network node 110 or the UE 120 (for example, using the processing system 145 or the processing system 140, respectively, or one or more coupled encoders or modems) may perform a channel coding operation or a forward error correction (FEC) operation to control errors in transmitted information. For example, the network node 110 or the UE 120 may perform an encoding operation to generate encoded information (such as by selectively introducing redundancy into the information, typically using an error correction code (ECC) , such as a polar code or a low-density parity-check (LDPC) code) . The network node 110 or the UE 120 (for example, using the processing system 145 or one or more modems) may further perform spatial processing (for example, precoding) on the encoded information to generate one or more processed or precoded signals for downlink or uplink transmission, respectively. In some examples, the network node 110a or the UE 120a may perform codebook-based precoding or non-codebook-based precoding. Codebook-based precoding may involve selecting a precoder (for example, a precoding matrix) using a codebook. For example, the network node 110a may provide precoding information indicating which precoder, defined by the codebook, is to be used by the UE 120a. Non-codebook-based precoding may involve selecting or deriving a precoder based on, or otherwise associated with, one or more downlink or uplink signal measurements. The network node 110a or the UE 120a may transmit the processed downlink or uplink signals, respectively, via one or more antennas.
[0053] The network node 110a or the UE 120a may receive uplink signals or downlink signals, respectively, via one or more antennas. The network node 110a or the UE 120a (for example, using the processing system 145 or the processing system 140, respectively, or one or more coupled modems) may perform signal processing (for example, in accordance with the MCS) on the received uplink or downlink signals, respectively (such as filtering, amplification, demodulation, analog-to-digital conversion, an FFT operation, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , to map the received signal (s) to a sequence of binary bits (for example, received information) that estimates the information transmitted by the network node 110 or the UE 120 via the downlink or uplink signals. The network node 110a or the UE 120a (for example, using the processing system 145 or the processing system 140, respectively, or a coupled decoder or one or more modems) may decode the received information (such as by using an ECC, a decoding operation, or an FEC operation) to detect errors or correct bit errors in the received information to generate decoded information. The decoded information may estimate the information transmitted via the downlink or uplink signals.
[0054] In some examples, a UE 120 and a network node 110 may perform MIMO communication. MIMO communication generally refers to transmitting or receiving multiple signals (such as multiple layers or multiple data streams) simultaneously over the same time and frequency resources. A network node 110 or a UE 120 may communicate using single-user MIMO or multi-user MIMO (MU-MIMO) , the latter of which being used by a network node 110 to simultaneously transmit signals to multiple UEs 120. MIMO techniques may involve spatial multiplexing (multi-layer transmission) or beamforming. To implement beamforming, the amplitudes or phases of signals transmitted via antenna elements may be modulated and shifted relative to each other (such as by manipulating a phase shift, a phase offset, or an amplitude) to generate one or more beams. For example, a network node 110 may generate one or more beams 160a, and a UE 120 may generate one or more beams 160b. The term “beam” may refer to a directional transmission of a wireless signal toward a receiving device or otherwise in a desired direction, a directional reception of a wireless signal from a transmitting device or otherwise in a desired direction, a direction associated with such a directional transmission or directional reception, a set of directional resources associated with a signal transmission or signal reception (for example, an angle of arrival, a horizontal direction, or a vertical direction) , or a set of parameters or resources associated with one or more aspects of a directional signal, among other examples.
[0055] In some examples, a network node 110 or a UE 120 may implement massive MIMO, which may be associated with an increased (for example, “massive” ) quantity of antennas at the network node 110 or at the UE 120, such as in a network implementing mmWave technology, which enables more precise beamforming or reduced interference. In some examples, the wireless communication network 100 may implement multi-TRP (mTRP) operation (including redundant transmission or reception on multiple TRPs) or non-coherent joint transmission (NC-JT) .
[0056] The network node 110 and the UE 120 may establish a communication link or beam pair, and otherwise increase reliability, throughput, signal strength, or other signal properties for MIMO communications, by performing beam management operations, such as an initial beam acquisition operation, a beam refinement operation, or a beam recovery operation. For example, an initial beam acquisition operation may involve the network node 110 transmitting signals (for example, SSBs or other signals) via respective beams (for example, of the beams 160 of the network node 110) and the UE 120 receiving and measuring the signal (s) via respective beams of multiple beams (for example, from the beams 160 of the UE 120) to identify a best beam (or beam pair) for communication between the UE 120 and the network node 110. A beam refinement operation may involve a first device (for example, the UE 120 or the network node 110) transmitting signal (s) via a subset of beams (for example, identified based on, or otherwise associated with, measurements reported as part of one or more other beam management operations) . A second device (for example, the network node 110 or the UE 120) may receive the signal (s) via a single beam (for example, to identify the best beam for communication from the subset of beams) . The beam (s) may be identified or defined via one or more spatial parameters, such as a transmission configuration indicator (TCI) state or a quasi co-location (QCL) parameter, among other examples.
[0057] Some aspects and techniques as described herein may be implemented, at least in part, using an AI / ML model, such as a program that includes a machine learning (ML) model or an artificial neural network (ANN) model. The AI / ML model may be deployed at one or more devices 165 (for example, one or more network nodes 110, one or more UEs 120, one or more servers, or one or more components of a cloud computing network, among other examples) . For example, in a deployment in which AI / ML functionality is performed independently at a device 165, sometimes referred to as “overlay AI / ML, ” the AI / ML model (or an instance or portion of the AI / ML model) may be deployed at a UE 120 (for example, by the processing system 140) , a network node 110 (for example, by the processing system 145) , one or more servers, or one or more components of a cloud computing network, among other examples. Additionally, or alternatively, in a deployment where AI / ML functionality is coordinated between different devices 165, sometimes referred to as “coordinated AI / ML, ” or performed at all device and network layers, sometimes referred to as “native AI / ML, ” the AI / ML model (or an instance of the AI / ML model) may be deployed at multiple devices 165 (for example, a first portion of the AI / ML model may be deployed at a UE 120 and a second portion of the AI / ML model may be deployed at a network node 110) . In other examples of coordinated AI / ML or native AI / ML, a first AI / ML model may be deployed at a UE 120 and a second AI / ML model may be deployed at a network node 110. The AI / ML model (s) may be configured to enhance various aspects of the wireless communication network 100 (for example, to increase privacy, reliability, or efficient use of network bandwidth, or to reduce latency, among other examples) . For example, the AI / ML model (s) may be trained to identify patterns or relationships in data corresponding to the wireless communication network 100, a device, or an air interface, among other examples. The AI / ML model (s) may support operational decisions relating to one or more aspects associated with wireless communications devices, networks, or services.
[0058] Accordingly, in some examples, the AI / ML model (s) may enable AI-as-a-Service (for example, an end-to-end AI / ML service via a user plane) for use cases, such as a self-organizing network (SON) , minimization of drive test (MDT) , quality of experience (QoE) , positioning, sensing, predictive mobility, or traffic prediction, among other examples. In some examples, AI-as-a-Service use cases may include measurement collection reporting by a UE 120, device selection criteria (for example, according to a geographical area where measurements are to be collected or UE capabilities to be used to collected measurements) , or reporting configurations (for example, reporting parameters such as location, time, or sensor information, among other examples) . Additionally, or alternatively, the AI / ML model (s) may enable AI / ML procedures (for example, RAN-triggered service establishment, configuration, inferencing using UE-side or network-side models, performance monitoring or management, or capability signaling, among other examples) . Additionally, or alternatively, the AI / ML model (s) may enable RAN-based AI / ML services via one or more application program interfaces (APIs) or management interfaces for use cases, such as beam management, radio resource monitoring (RRM) relaxation, mobility prediction, load prediction, network energy savings, or coverage and capacity improvements, among other examples) .
[0059] In some aspects, the UE 120 may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may transmit, to a network node 110, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window; and transmit, to the network node 110, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values. Additionally, or alternatively, the communication manager 150 may perform one or more other operations described herein.
[0060] In some aspects, the network node 110 may include a communication manager 155. As described in more detail elsewhere herein, the communication manager 155 may receive, from a UE 120, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window; and receive, from the UE 120, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values. Additionally, or alternatively, the communication manager 155 may perform one or more other operations described herein.
[0061] The network node 110, the processing system 145 of the network node 110, the UE 120, the processing system 140 of the UE 120, or any other component (s) of Fig. 1 may implement one or more techniques or perform one or more operations associated with performance monitoring metrics for CSI predictions, as described in more detail elsewhere herein. For example, the processing system 145 of the network node 110, or the processing system 140 of the UE 120 may perform or direct operations of, for example, process 700 of Fig. 7, process 800 of Fig. 8, or other processes as described herein (alone or in conjunction with one or more other processors) . Memory of the network node 110 may store data and program code (or instructions) for the network node 110. In some examples, the memory of the network node 110 may store data relating to a UE 120, such as RRC state information or a UE context. Memory of a UE 120 may store data and program code (or instructions) for the UE 120, such as context information. In some examples, the memory of the UE 120 or the memory of the network node 110 may include a non-transitory computer-readable medium storing a set of instructions for wireless communication. For example, the set of instructions, when executed by one or more processors (for example, of the processing system 145 or the processing system 140) of the network node 110, or the UE 120, may cause the one or more processors to perform process 700 of Fig. 7, process 800 of Fig. 8, or other processes as described herein. In some examples, executing instructions may include running the instructions, converting the instructions, compiling the instructions, or interpreting the instructions, among other examples.
[0062] In some aspects, the UE 120 includes means for transmitting, to a network node, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window; or means for transmitting, to the network node, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values. The means for the UE 120 to perform operations described herein may include, for example, one or more of communication manager 150, processing system 140, a radio, one or more RF chains, one or more transceivers, one or more antennas, one or more modems, a reception component (for example, reception component 902 depicted and described in connection with Fig. 9) , or a transmission component (for example, transmission component 904 depicted and described in connection with Fig. 9) , among other examples.
[0063] In some aspects, the network node 110 includes means for receiving, from a UE, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window; or means for receiving, from the UE, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values. The means for the network node 110 to perform operations described herein may include, for example, one or more of communication manager 155, processing system 145, a radio, one or more RF chains, one or more transceivers, one or more antennas, one or more modems, a reception component (for example, reception component 1002 depicted and described in connection with Fig. 10) , or a transmission component (for example, transmission component 1004 depicted and described in connection with Fig. 10) , among other examples.
[0064] Fig. 2 is a diagram illustrating examples 200, 210, and 220 of CSI-RS beam management procedures. As shown in Fig. 2, examples 200, 210, and 220 include a UE 120 in communication with a network node 110 in a wireless network (e.g., wireless network 100) . However, the devices shown in Fig. 2 are provided as examples, and the wireless network may support communication and beam management between other devices (e.g., between a UE 120 and a network node 110 or transmit receive point (TRP) , between a mobile termination node and a control node, between an integrated access and backhaul (IAB) child node and an IAB parent node, or between a scheduled node and a scheduling node) . In some aspects, the UE 120 and the network node 110 may be in a connected state (e.g., an RRC connected state) .
[0065] As shown in Fig. 2, example 200 may include a network node 110 (e.g., one or more network node devices such as an RU, a DU, or a CU, among other examples) and a UE 120 communicating to perform beam management using CSI-RSs. Example 200 depicts a first beam management procedure (e.g., P1 CSI-RS beam management) . The first beam management procedure may be referred to as a beam selection procedure, an initial beam acquisition procedure, a beam sweeping procedure, a cell search procedure, or a beam search procedure. As shown in Fig. 2 and example 200, CSI-RSs may be configured to be transmitted from the network node 110 to the UE 120. The CSI-RSs may be configured to be periodic (e.g., using RRC signaling) , semi-persistent (e.g., using media access control (MAC) control element (MAC-CE) signaling) , or aperiodic (e.g., using DCI) .
[0066] The first beam management procedure may include the network node 110 performing beam sweeping over multiple transmit (Tx) beams. The network node 110 may transmit a CSI-RS using each transmit beam for beam management. To enable the UE 120 to perform receive (Rx) beam sweeping, the network node may use a transmit beam to transmit (e.g., with repetitions) each CSI-RS at multiple times within the same RS resource set so that the UE 120 can sweep through receive beams in multiple transmission instances. For example, if the network node 110 has a set of N transmit beams and the UE 120 has a set of M receive beams, the CSI-RS may be transmitted on each of the N transmit beams M times so that the UE 120 may receive M instances of the CSI-RS per transmit beam. In other words, for each transmit beam of the network node 110, the UE 120 may perform beam sweeping through the receive beams of the UE 120. As a result, the first beam management procedure may enable the UE 120 to measure a CSI-RS on different transmit beams using different receive beams to support selection of network node 110 transmit beams / UE 120 receive beam (s) beam pair (s) . The UE 120 may report the measurements to the network node 110 to enable the network node 110 to select one or more beam pair (s) for communication between the network node 110 and the UE 120. While example 200 has been described in connection with CSI-RSs, the first beam management process may also use SSBs for beam management in a similar manner as described above.
[0067] As shown in Fig. 2, example 210 may include a network node 110 and a UE 120 communicating to perform beam management using CSI-RSs. Example 210 depicts a second beam management procedure (e.g., P2 CSI-RS beam management) . The second beam management procedure may be referred to as a beam refinement procedure, a network node beam refinement procedure, a TRP beam refinement procedure, or a transmit beam refinement procedure. As shown in Fig. 2 and example 210, CSI-RSs may be configured to be transmitted from the network node 110 to the UE 120. The CSI-RSs may be configured to be aperiodic (e.g., using DCI) . The second beam management procedure may include the network node 110 performing beam sweeping over one or more transmit beams. The one or more transmit beams may be a subset of all transmit beams associated with the network node 110 (e.g., determined based at least in part on measurements reported by the UE 120 in connection with the first beam management procedure) . The network node 110 may transmit a CSI-RS using each transmit beam of the one or more transmit beams for beam management. The UE 120 may measure each CSI-RS using a single (e.g., a same) receive beam (e.g., determined based at least in part on measurements performed in connection with the first beam management procedure) . The second beam management procedure may enable the network node 110 to select a best transmit beam based at least in part on measurements of the CSI-RSs (e.g., measured by the UE 120 using the single receive beam) reported by the UE 120.
[0068] As shown in Fig. 2, example 220 depicts a third beam management procedure (e.g., P3 CSI-RS beam management) . The third beam management procedure may be referred to as a beam refinement procedure, a UE beam refinement procedure, or a receive beam refinement procedure. As shown in Fig. 2 and example 220, one or more CSI-RSs may be configured to be transmitted from the network node 110 to the UE 120. The CSI-RSs may be configured to be aperiodic (e.g., using DCI) . The third beam management process may include the network node 110 transmitting the one or more CSI-RSs using a single transmit beam (e.g., determined based at least in part on measurements reported by the UE 120 in connection with the first beam management procedure or the second beam management procedure) . To enable the UE 120 to perform receive beam sweeping, the network node may use a transmit beam to transmit (e.g., with repetitions) CSI-RS at multiple times within the same RS resource set so that UE 120 can sweep through one or more receive beams in multiple transmission instances. The one or more receive beams may be a subset of all receive beams associated with the UE 120 (e.g., determined based at least in part on measurements performed in connection with the first beam management procedure or the second beam management procedure) . The third beam management procedure may enable the network node 110 or the UE 120 to select a best receive beam based at least in part on reported measurements received from the UE 120 (e.g., of the CSI-RS of the transmit beam using the one or more receive beams) .
[0069] In some examples, the UE 120 may predict CSI associated with a future prediction window in accordance with measurements of one or more CSI-RSs, and the UE 120 may report the predicted CSI values to the network node 110. In some aspects, the UE 120 may be configured to obtain a performance monitoring metric associated with evaluating a performance for the CSI predictions. In some examples, the performance monitoring metric may be obtained in accordance with one or more CSI-RSs measured prior to the prediction window. Additionally, or alternatively, the performance monitoring metric may be obtained in accordance with one or more CSI-RSs measured during the prediction window (e.g., to obtain actual or ground truth CSI values) . In some aspects, to obtain the performance monitoring metric, the UE 120 may be configured to measure one of, a subset of, or all of a set of CSI-RSs configured for transmission during the prediction window. In some examples, the UE 120 may be configured to report, to the network node 110, the performance monitoring metric or a decision output associated with the CSI predictions, which may include requesting a deactivation of the CSI predictions, reporting the satisfaction of one or more thresholds, or switching one or more parameters associated with the CSI predictions. In some aspects, the UE 120 may be configured to transmit, in a capability report, an indication of decision outputs or other information that may be included in the performance monitoring CSI report, and the network node 110 may indicate information to be included in performance monitoring CSI reports to the UE 120.
[0070] As indicated above, Fig. 2 is provided as an example of beam management procedures. Other examples of beam management procedures may differ from what is described with regard to Fig. 2. For example, the UE 120 and the network node 110 may perform the third beam management procedure before performing the second beam management procedure, or the UE 120 and the network node 110 may perform a similar beam management procedure to select a UE transmit beam.
[0071] Fig. 3 is a diagram illustrating an example architecture 300 of a functional framework for radio access network (RAN) intelligence enabled by data collection. In some scenarios, the functional framework for RAN intelligence may be enabled by further enhancement of data collection through use cases or examples. For example, principles or algorithms for RAN intelligence enabled by AI / ML and the associated functional framework (e.g., the AI functionality or the input / output of the component for AI enabled optimization) have been utilized or studied to identify the benefits of AI enabled RAN through possible use cases (e.g., beam management, energy saving, load balancing, mobility management, or coverage optimization, among other examples) . In one example, as shown by the architecture 300, a functional framework for RAN intelligence may include multiple logical entities, such as a model training host 302, a model inference host 304, data sources 306, and an actor 308.
[0072] The model inference host 304 may be configured to run an AI / ML model based on inference data provided by the data sources 306, and the model inference host 304 may produce an output (e.g., a prediction) with the inference data input to the actor 308. The actor 308 may be an element or an entity of a core network or a RAN. For example, the actor 308 may be a UE 120, a network node 110, base station (e.g., a gNB) , a CU, a DU, or an RU, among other examples. In addition, the actor 308 may also depend on the type of tasks performed by the model inference host 304, type of inference data provided to the model inference host 304, or type of output produced by the model inference host 304. For example, if the output from the model inference host 304 is associated with position determination, the actor 308 may be a UE 120, a DU or an RU. In some examples, the model inference host 304 may be hosted on the actor 308. For example, a UE 120 may be the actor 308 and may host the model inference host 304. In some aspects, a UE 120 (e.g., the actor 308) may be a data source 306. For example, the UE 120 may perform a measurement (e.g., an NR measurement) , may input the measurement to the AI / ML model at the model inference host 304 (or may provide the measurement to the model inference host 304) , and may act based on an output of the AI / ML model (e.g., to obtain predicted CSI values and report the predicted CSI values to the network node 110) .
[0073] After the actor 308 receives an output from the model inference host 304, the actor 308 may determine whether to act based on the output. For example, if the actor 308 is a UE and the output from the model inference host 304 is associated with position information, the actor 308 may determine whether to report the position information, reconfigure a beam, among other examples. If the actor 308 determines to act based on the output, in some examples, the actor 308 may indicate the action to at least one subject of action 310.
[0074] The data sources 306 may also be configured for collecting data that is used as training data for training an AI / ML model or as inference data for feeding an AI / ML model inference operation. For example, the data sources 306 may collect data from one or more core network or RAN entities, which may include the actor 308 or the subject of action 310, and provide the collected data to the model training host 302 for AI / ML model training. In some aspects, the model training host 302 may be co-located with the model inference host 304 or the actor 308. For example, the actor 308 or the subject of action 310 may provide performance feedback associated with the beam configuration to the data sources 306, where the performance feedback may be used by the model training host 302 for monitoring or evaluating the AI / ML model performance, such as whether the output (e.g., prediction) provided to the actor 308 is accurate. In some examples, the model training host 302 may monitor or evaluate AI / ML model performance using a training position value, which may be provided by a node (e.g., a UE 120 or a network node 110) , as described elsewhere herein. In some examples, if the output provided by the actor 308 is inaccurate (or the accuracy is below an accuracy threshold) , then the model training host 302 may determine to modify or retrain the AI / ML model used by the model inference host, such as via an AI / ML model deployment / update.
[0075] In some examples, the UE 120 may predict CSI associated with a future prediction window (e.g., using the AI / ML model) in accordance with measurements of one or more CSI-RSs, and the UE 120 may report the predicted CSI values to the network node 110. In some aspects, the UE 120 may be configured to obtain a performance monitoring metric associated with evaluating a performance for the CSI predictions (e.g., a performance of the AI / ML model) . In some examples, the performance monitoring metric may be obtained in accordance with one or more CSI-RSs measured prior to the prediction window. Additionally, or alternatively, the performance monitoring metric may be obtained in accordance with one or more CSI-RSs measured during the prediction window (e.g., to obtain actual or ground truth CSI values) . In some aspects, to obtain the performance monitoring metric, the UE 120 may be configured to measure one of, a subset of, or all of a set of CSI-RSs configured for transmission during the prediction window. In some examples, the UE 120 may be configured to report, to the network node 110, the performance monitoring metric or a decision output associated with the CSI predictions in accordance with the performance monitoring metric, which may include requesting a deactivation of the CSI predictions, reporting the satisfaction of one or more thresholds, or switching one or more parameters associated with the CSI predictions. In some aspects, the UE 120 may be configured to transmit, in a capability report, an indication of decision outputs or other information that may be included in the performance monitoring CSI report.
[0076] As indicated above, Fig. 3 is provided as an example. Other examples may differ from what is described with regard to Fig. 3.
[0077] Fig. 4 is a diagram illustrating an example 400 of CSI predictions and performance monitoring metric reporting. The example 400 illustrates communications between a UE 120 and a network node 110 relating to CSI predictions and performance monitoring for the CSI predictions, as described herein.
[0078] In some examples, the UE 120 may measure one or more inference CSI-RSs 405 to predict CSI at a future time associated with a prediction window 410. For example, the UE 120 may measure at least one of a CSI-RS 405a, a CSI-RS 405b, or a CSI-RS 405c, and the UE 120 may obtain one or more predicted CSI values in accordance with the one or more measured inference CSI-RSs 405. Additionally, or alternatively, the UE 120 may use historical (e.g., previously obtained) CSI values to obtain the one or more predicted CSI values. The one or more predicted CSI values may correspond to predicted channel conditions during a prediction window 410. In some examples, the UE 120 may report the one or more predicted CSI values via a first CSI report 415a, which may occur prior to (or during) the prediction window 410. Accordingly, by reporting the one or more predicted CSI values, the network node 110 may obtain communication parameters or apply a precoder for a downlink message 420 during the prediction window 410 in accordance with the one or more predicted CSI values.
[0079] In some aspects, the UE 120 may be configured to perform measurements to evaluate a performance of CSI predictions. For example, the UE 120 may measure one or more performance monitoring CSI-RSs 405, which may be used to evaluate how closely the one or more predicted CSI values align with actual channel conditions during the prediction window 410. In some examples, the UE 120 may measure one or more performance monitoring CSI-RSs 405 that are transmitted by the network node 110 prior to the prediction window 410, such as a CSI-RS 405d or a CSI-RS 405e. For example, the CSI-RS 405d and the CSI-RS 405e may be closer to the prediction window 410 relative to the one or more inference CSI-RSs 405, and the UE 120 may obtain one or more CSI values from the CSI-RS 405d or the CSI-RS 405e for evaluating the one or more predicted CSI values. Additionally, or alternatively, the UE 120 may measure one or more performance monitoring CSI-RSs 405 that are transmitted by the network node 110 during the prediction window 410, such as a CSI-RS 405f, and the UE 120 may obtain actual CSI values 425 (e.g., ground truth values) during the prediction window 410. Additionally, or alternatively, the UE 120 may use one or more CSI-RSs 405 that occur latest of the inference CSI-RSs 405 (e.g., the CSI-RS 405c) as a performance monitoring CSI-RS, which may allow the UE 120 to monitor the performance of CSI predictions without waiting for a performance monitoring CSI-RS 405. In some examples, the measurements of the performance monitoring CSI-RSs 405 may be used to obtain a performance monitoring metric 430 associated with evaluating a performance of the one or more predicted CSI values.
[0080] In some aspects, the UE 120 may transmit, to the network node 110, a second CSI report 415b (e.g., a performance monitoring CSI report) associated with evaluating the performance of the one or more predicted CSI values. In some examples, the second CSI report 415b may include an indication of one or more CSI values obtained in accordance with one or more performance monitoring CSI-RSs 405 (e.g., for Type 2 performance monitoring) . For example, the second CSI report 415b may include actual CSI values 425 measured from the CSI-RS 405f during the prediction window 410, the predicted CSI values, or a combination thereof, and the network node 110 may obtain the performance monitoring metric 430 in accordance with the second CSI report 415b. Additionally, or alternatively, the second CSI report 415b may include CSI values measured from the CSI-RS 405d or the CSI-RS 405e prior to the prediction window 410, which may allow for the second CSI report 415b to be transmitted without waiting for a CSI-RS 405 during the prediction window (e.g., the CSI-RS 405f) . In some examples, the second CSI report 415b may include an indication of the performance monitoring metric 430, and the network node 110 may obtain one or more decision outputs 435 associated with the operation of CSI predictions at the UE 120 in accordance with the performance monitoring metric 430 (e.g., for Type 3 performance monitoring) . Additionally, or alternatively, the UE 120 may report one or more decision outputs 435 obtained in accordance with the performance monitoring metric 430 by the UE 120, and the network node 110 may adjust the operation of the CSI predictions at the UE 120 in accordance with the one or more decision outputs 435 (e.g., for Type 1 performance monitoring) .
[0081] In some examples, the network node 110 may transmit, to the UE 120, a configuration (e.g., a CSI report configuration) associated with performance monitoring for CSI predictions. For example, the configuration may include a type of performance monitoring (e.g., Type 1, Type 2, or Type 3) , which may indicate the information that should be included in performance monitoring CSI reports 415, such as the CSI report 415b. Additionally, or alternatively, the configuration may indicate one or more thresholds associated with performance monitoring for CSI predictions. For example, the performance monitoring metric 430 may include whether a difference between at least one predicted CSI value and at least one CSI value associated with the performance monitoring CSI-RS 405 satisfies a threshold of the one or more thresholds. In some cases, the performance monitoring metric 430 may include an indication of which thresholds are satisfied, a quantity associated with the difference between the at least one predicted CSI value and the at least one CSI value (e.g., by how much the thresholds are satisfied) , or a combination thereof. Additionally, or alternatively, and the UE 120 may determine the one or more decision outputs 435 in accordance with whether any of the one or more thresholds are satisfied. In some cases, the configuration may include different thresholds for when the predicted CSI values are compared to the actual CSI values 425 during the prediction window 410, or for when the predicted CSI values are compared to CSI values associated with performance monitoring CSI-RSs 405 prior to the prediction window 410 (e.g., sample-and-hold CSI values) .
[0082] In some aspects, the performance monitoring metric 430 may be or include a comparison of the predicted CSI values (or predicted channel conditions) to a benchmark (or target) . For example, the performance monitoring metric 430 may be or include one or more key performance indicators (KPIs) , which may be indicated by the network node 110 via the configuration (e.g., for Type 1 or Type 3 performance monitoring) . In some examples, the one or more KPIs may include at least one of a squared generalized cosine similarity (SGCS) , a normalized mean squared error (NMSE) , a block error rate (BLER) , or a channel distribution associated with a difference between channel conditions corresponding to the inference CSI-RSs 405 (e.g., the predicted CSI values) and channel conditions corresponding to the one or more performance monitoring CSI-RSs (e.g., the actual CSI values 425 or CSI values associated with the CSI-RS 405d or the CSI-RS 405e) . For example, the performance monitoring metric 430 may include an input distribution, an output distribution, an SGCS compared to one or more baseline values, or an output SGCS compared to the actual CSI values 425. In some examples, when comparing channel conditions corresponding to the actual CSI values 425 (e.g., in accordance with measurements during the prediction window 410) , the UE 120 may use a singular value decomposition (SVD) precoder, and may use a different codebook than for CSI predictions (e.g., a non-Doppler codebook) .
[0083] Additionally, or alternatively, the performance monitoring metric 430 may be or include (e.g., for Type 1 performance monitoring) one or more thresholds, or an indication of a satisfaction of one or more thresholds. For example, the one or more thresholds may be indicated via the configuration from the network node 110, or the thresholds may be selected by the UE 120 (e.g., based on historical CSI values or predicted CSI performance) . In some examples, the satisfaction of the one or more thresholds may be based on values of one or more intermediate KPIs (e.g., SGCS values, NMSE values, channel distribution values) . For example, the one or more thresholds may include at least one of an SGCS threshold, an NMSE threshold, a BLER threshold, or a channel distribution threshold, and the performance monitoring metric 430 may indicate which, if any, of the thresholds are satisfied in accordance with calculated SGCS values, NMSE values, or channel distribution values, respectively.
[0084] Additionally, or alternatively, the performance monitoring metric 430 may include both an indication of whether a threshold is satisfied and a corresponding KPI. For example, the configuration from the network node 110 may indicate the threshold and the KPI (e.g., BLER for CQI performance) . In some examples, a single threshold may be used for a given benchmark, or multiple thresholds may be used, such as for evaluating performance on different slots or for evaluating average performance and an instantaneous performance. In some examples, the network node 110 may indicate one or more reference resources (e.g., CSI-RS resources) for measuring to determine whether a threshold is satisfied, such as a reference resource during the prediction window (e.g., for ground truth values) . Additionally, or alternatively, the UE 120 may select values to use as the performance monitoring metric 430.
[0085] In some examples, the performance monitoring metric 430 (e.g., when the performance monitoring metric 430 includes SGCS values or NMSE values) may be associated with a granularity. For example, the performance monitoring metric 430 may include values that are computed on at least one of a per-layer granularity, a per-sample (e.g., per-measurement) granularity, a per-wideband granularity, a per-subband granularity, or a per-wideband and per-subband granularity. Additionally, or alternatively, the performance monitoring metric 430 may include one or more values that are averages of multiple samples, and the values may be averaged over all layers, over one or more specific layers (e.g., specified by the configuration) , over all collected samples (e.g., in the prediction window 410) , over one or more specific samples of the collected samples (e.g., specified by the configuration, such as a first and last sample, or other samples) , over all configured subbands, over one or more specific subbands (e.g., specified by the configuration) , or a combination thereof.
[0086] Additionally, or alternatively, the performance monitoring metric 430 may be calculated in a differential manner. For example, the performance monitoring metric 430 may include an overall average value corresponding to an average of multiple samples (e.g., for all samples) , as well as one or more offset values, for each layer, sample, subband, or resource block, associated with a difference between each additional sample (or additional average value) to the overall average value. For instance, the overall average value may be an average of all samples or an average for all layers, and the one or more offset values may each correspond to a respective layer and indicate a difference between the sample for the respective layer and the overall average value.
[0087] In some aspects, when the performance monitoring metric 430 is included in the second CSI report 415b, the performance monitoring metric 430 may be quantized to one or more bits (e.g., when the performance monitoring metric 430 includes one or more floating values) . In some examples, a maximum value and a minimum value may be defined (e.g., in the configuration) , such as a minimum or maximum NMSE value or SGCS value (e.g., in decibels (dB) , or in a linear scale as lower values may correspond to low performance) . In some examples, the performance monitoring metric 430 may be quantized in accordance with uniform quantization techniques, where a quantity of bits may be defined, and each bit value may be uniformly distributed between the minimum value and the maximum value.
[0088] Additionally, or alternatively, the performance monitoring metric 430 may be quantized in accordance with non-uniform quantization techniques, where bit values are not uniformly distributed between the minimum value and the maximum value. For example, as very high or low values may be less important, as these may be associated with good or poor performance regardless of the exact value, the ranges may be larger at the higher or lower end. For instance, for four bits, a bit value of 00 may correspond to values between 0 and 0.5, a bit value of 01 may correspond to values between 0.5 and 0.7, a bit value of 10 may correspond to values between 0.7 and 0.8, and a bit value of 11 may correspond to values greater than 0.8. Additionally, or alternatively, the performance monitoring metric 430 may be quantized such that a quantity of bits indicating a value is in accordance with the value. For example, one bit may be used for values lower than 0.7, such that a bit value of 0 corresponds to values between 0 and 0.5, and a bit value of 1 corresponds to values between 0.5 and 0.7, and two bits may be used for values greater than 0.7, such that a bit value of 10 corresponds to values between 0.7 and 0.8, and a bit value of 11 corresponds to values greater than 0.8.
[0089] In some aspects, when the performance monitoring metric 430 includes an SGCS value in dB (SGCSdB) , the SGCS value in dB may be given by Equation 1 below: SGCSdB=10 log10 (1-SGCSlinear) (1) where SGCSlinear is the SGCS value in a linear scale. In some aspects, the maximum value may be 0 dB and the minimum value may be -20 dB, and a gap between bit values may be 1 dB (e.g., for uniform quantization) . Additionally, or alternatively, the quantization level may be dense for high SGCS values (e.g., large absolute value) and coarse for low SGCS values (e.g., low absolute values) , or vice versa. Additionally, or alternatively, for non-uniform quantization, the quantization level may be dense for SGCS close to an average value, and coarse for values farther from the average value (e.g., extreme high or low values) . Measurement samples associated with the performance monitoring metric 430 are further described with regard to Fig. 5.
[0090] In some aspects, the performance monitoring metric 430 may be used (e.g., by the UE 120 or the network node 110) to determine one or more decision outputs 435, as described herein. In some examples, a decision output 435 may include no changes for CSI predictions (e.g., an acknowledgement without indicating a change) , an indication that one or more thresholds associated with the performance monitoring metric 430 are satisfied (e.g., an indication of at least one satisfied threshold, an indication of by how much a threshold is exceeded, or a combination thereof) , or an indication (e.g., suggestion) to change one or more CSI reporting parameters (e.g., enlarging a CSI report payload) . Additionally, or alternatively, a decision output 435 may include an indication to switch from the network node 110 to another network node 110 without changing CSI-RS parameters or with changing CSI-RS parameters (e.g., to enlarge an observation window for CSI-RS monitoring) , which may allow the UE 120 to compare performance between multiple network nodes 110. In some examples, a decision output 435 may include to deactivate CSI predictions (e.g., to fallback to non-prediction CSI reporting) . For example, the decision output 435 may indicate or request to switch to eType2 monitoring to compare eType2 monitoring performance to CSI predictions. In some cases, performance monitoring techniques may be used when falling back to other CSI reporting techniques, such as eType2 monitoring, which may allow the UE 120 and the network node 110 to evaluate which CSI reporting technique achieves better performance. Alternatively, performance monitoring may be deactivated, such as for sample-and-hold CSI reporting.
[0091] In some aspects, the performance monitoring information (e.g., the performance monitoring metric 430, or the decision outputs 435) included in the second CSI report 415b may additionally, or alternatively, be included in the first CSI report 415a that includes the predicted CSI values. For example, in cases where the performance monitoring metric 430 is calculated in accordance with measurements of one or more CSI-RSs 405 prior to the prediction window 410 (e.g., using later predictions of CSI values instead of ground truth CSI values) , the performance monitoring metric 430 or decision outputs 435 may be included alongside the predicted CSI values in the first CSI report 415a. Additionally, or alternatively, the first CSI report 415a may include performance monitoring information (e.g., actual CSI values 425, a performance monitoring metric 430, or one or more decision outputs 435) associated with previous predicted CSI values (e.g., reported in a prior CSI report 415) .
[0092] In some aspects, the UE 120 may transmit a capability message (e.g., a capability report) that indicates which decision outputs 435 the UE 120 supports reporting in performance monitoring CSI reports 415. The network node 110 may indicate the decision outputs 435 that may be reported via a CSI report 415 in accordance with the capability message, for example, via the configuration (e.g., via a reportQuantity parameter in the CSI report configuration) . Additionally, or alternatively, the network node 110 may indicate information to be included via performance monitoring CSI reports 415 by indicating a type of performance monitoring (e.g., between Type 1, Type 2, or Type 3) via the configuration (e.g., via the reportQuantity parameter) . Aspects relating to transmission of performance monitoring reports 415 are further described with regard to Fig. 6.
[0093] As indicated above, Fig. 4 is provided as an example. Other examples may differ from what is described with regard to Fig. 4. For example, some of the signaling shown in the example 400 may be transmitted at different times (e.g., the second CSI report 415b may be transmitted during or prior to the prediction window 410, or prior to the downlink message 420) . Additionally, or alternatively, some signaling may be omitted or additional signaling not shown may be added.
[0094] Fig. 5 is a diagram illustrating an example 500a, an example 500b, and an example 500c of measurement collection for a performance monitoring metric (e.g., a performance monitoring metric 430) . As shown in Fig. 5, a network node 110 may transmit one or more CSI-RSs 505, which may be measured by a UE 120 to obtain the performance monitoring metric associated with evaluating a performance of one or more predicted CSI values, as described herein.
[0095] In some aspects, the UE 120 may measure one or more CSI-RSs 505 during a prediction window 510, which may be associated with the one or more predicted CSI values. In some examples, the performance monitoring metric may be calculated based on measurements during a single prediction window 510, as shown in the example 500a and the example 500b. For example, the UE 120 may be configured (e.g., via a CSI report configuration) to measure a single CSI-RS 505 (e.g., to obtain a single sample) . In some cases, the UE 120 may be configured to measure only during a CSI-RS 505a during a first slot (e.g., T1) of the prediction window 510, or during a specific slot (e.g., T0) . Additionally, or alternatively, the UE 120 may be configured to measure a CSI-RS 505 during a middle slot within the prediction window 510, or a last slot within the prediction window 510 (e.g., to measure the CSI-RS 505b) .
[0096] Additionally, or alternatively, the UE 120 may be configured to obtain multiple samples and measure multiple CSI-RSs 505 during the single prediction window 510. For example, the UE 120 may be configured to obtain two samples in accordance with a CSI-RS monitoring periodicity. For instance, the UE 120 may measure a CSI-RS 505c and a CSI-RS 505e (e.g., during a slot T1 and a slot T3) in accordance with the CSI-RS monitoring periodicity. Additionally, or alternatively, the UE 120 may be configured to measure a first and last slot of the prediction window 510, and the UE 120 may measure the CSI-RS 505c and a CSI-RS 505f. In some examples, the UE 120 may be configured to measure all samples within the prediction window 510 (e.g., all CSI-RSs 505 configured for the prediction window 510) . For example, the UE 120 may measure the CSI-RS 505c, a CSI-RS 505d, the CSI-RS 505e, and the CSI-RS 505f.
[0097] In some aspects, the UE 120 may be configured to collect samples via multiple prediction windows 510, as shown by the example 500c. For example, the UE 120 may be configured with a prediction window 510a and a prediction window 510b. The UE 120 may measure at least a first CSI-RS 505g in the prediction window 510a, and at least a second CSI-RS 505h in the prediction window 510b. Accordingly, the performance monitoring metric may be based on measurements performed during multiple prediction windows 510, which may help to evaluate CSI predictions over a longer duration.
[0098] As indicated above, Fig. 5 is provided as an example. Other examples may differ from what is described with regard to Fig. 5. For example, a different quantity of CSI-RSs 505 or prediction windows 510 may be configured for monitoring by the UE 120 than those shown in Fig. 5.
[0099] Fig. 6 is a diagram illustrating an example 600a and an example 600b of timings associated with performance monitoring CSI reports. The example 600a and the example 600b illustrate communications between a UE 120 and a network node 110.
[0100] The UE 120 may monitor one or more inference CSI-RSs 605, such as a CSI-RS 605a, a CSI-RS 605b, and a CSI-RS 605c, to obtain one or more predicted CSI values associated with a prediction window 610, as described herein. In some examples, the UE 120 may report the one or more predicted CSI values via a first CSI report 615a, as described herein. Additionally, the UE 120 may measure one or more additional CSI-RSs 605 to evaluate an accuracy of the one or more predicted CSI values. The UE 120 may transmit a second CSI report 615b (e.g., a performance monitoring CSI report 615) that indicates performance monitoring information associated with the one or more predicted CSI values.
[0101] In some aspects, such as for Type 1 performance monitoring, the second CSI report 615b may include one or more decision outputs associated with a performance monitoring metric (e.g., a performance monitoring metric 430, as described herein) obtained by the UE 120 in accordance with the one or more measurements of the additional CSI-RSs 605. In some examples, such as for Type 3 performance monitoring, the second CSI report 615b may include an indication of the performance monitoring metric. In some aspects, the network node 110 may transmit a CSI report configuration that indicates (e.g., via a reportQuantity parameter) which values may be included as part of the performance monitoring metric (e.g., for Type 3 performance monitoring) or which decision outputs (e.g., decision outputs 435, as described herein) may be included (e.g., for Type 1 performance monitoring) in the second CSI report 615b. In some examples, the CSI report configuration may be transmitted in accordance with a capability message transmitted from the UE 120 to the network node 110, which may indicate which values or which decision outputs the UE 120 supports including in the second CSI report 615b.
[0102] In some aspects, such as for Type 2 performance monitoring, the second CSI report 615b may include an indication of the measurements of the one or more additional CSI-RSs 605 (e.g., one or more CSI values) . The network node 110 may calculate the performance monitoring metric and may indicate a decision output to the UE 120 in accordance with the measurements of the one or more additional CSI-RSs 605.
[0103] In some examples, such as for Type 2 performance monitoring, the second CSI report 615b may be a same type of CSI report as the first CSI report 615a. For example, the network node 110 may select a periodicity for performance monitoring CSI reports 615 (e.g., for the second CSI report 615b) , which may be longer than a periodicity of non-performance-monitoring CSI reports 615 (e.g., such as the first CSI report 615a) . In some examples, a periodic or semi-persistent periodicity associated with performance monitoring CSI reports 615 may be changed via an RRC reconfiguration message. In some cases, when communications with the network node 110 fail, a periodicity associated with performance monitoring CSI reports 615 may fallback to a default value (e.g., a higher periodicity, or a lower periodicity) for the UE 120 to find a replacement network node 110.
[0104] In some aspects, such as for Type 2 performance monitoring, the second CSI report 615b may be a different type of CSI report than the first CSI report 615a. For example, performance monitoring CSI reports 615 may have a higher resolution, and the network node 110 may indicate a different precoder or a different reportQuantity parameter for performance monitoring CSI reports 615. In some aspects, multiple periodicities may be configured (e.g., via the CSI report configuration) for the performance monitoring CSI reports 615, which may allow the performance monitoring CSI reports 615 to be used as a fallback for non-performance-monitoring CSI reports 615. For example, the performance monitoring CSI reports 615 may use a first periodicity, and when used as a fallback, the performance monitoring CSI reports 615 may be used as non-performance-monitoring CSI reports 615 using a second periodicity.
[0105] In some aspects, performance monitoring CSI reports 615 may report only a portion of a set of precoders configured for the prediction window 610 associated with the one or more predicted CSI values. For example, the prediction window 610 may be configured with four precoders (e.g., when N=4) , and the second CSI report 615b may indicate a first precoder, which may be used to calculate benchmark values (e.g., target values) associated with the performance monitoring metric.
[0106] In some aspects, the network node 110 may transmit, to the UE 120, an indication of one or more settings associated with performance monitoring CSI reports 615. For example, the one or more settings may include at least one of a rank (e.g., a rank indicator) , a codebook or codebook restriction, a rank restriction, a quality setting, or other settings. In some examples, the CSI report configuration (e.g., for Type 2 monitoring) may include an identifier that indicates a CSI report 615 to be monitored (e.g., the first CSI report 615a) . The UE 120 may transmit the second CSI report 615b using one or more settings associated with the indicated CSI report 615 (e.g., a latest occasion of the indicated CSI report 615, such as the first CSI report 615a) . Additionally, or alternatively, the network node 110 may transmit, to the UE 120, DCI that indicates the one or more settings (e.g., as a combination of settings) . In some cases, when the network node 110 indicates one or more settings that are different from one or more settings associated with the first CSI report 615a, the UE 120 may refrain from transmitting (or obtaining) performance information associated with the first CSI report 615a.
[0107] As shown in the example 600a, the first CSI report 615a may be associated with a transmission occasion on slot n1. In some cases, such as when measurements for performance monitoring are performed prior to the prediction window 610 (e.g., when a Doppler codebook is used for performance monitoring measurements, and when N4>1) , a starting location associated with one or more CSI-RSs associated with the one or more predicted CSI values of the prediction window 610 may be offset from the slot n1. For example, the starting location may be set to a slot n1+1, which may correspond to the starting location of the one or more CSI-RSs associated with the one or more predicted CSI values, such as the CSI-RS 605d and a CSI-RS 605e. In some cases, the prediction window 610 may be also begin at the slot n1+1. In some aspects, a quality alignment (e.g., for a codebook, such as a Doppler codebook) for the second CSI report 615b may be based on the starting location of the one or more CSI-RSs associated with the one or more predicted CSI values.
[0108] Additionally, or alternatively, as shown in the example 600b, the performance monitoring may be in accordance with one or more actual CSI values (e.g., for no-prediction monitoring reports) . For example, the UE 120 may measure one or more CSI-RSs 605 during the prediction window 610, such as one or more CSI-RSs 605f or one or more CSI-RSs 605g, to obtain actual CSI values associated with the prediction window 610, as described with regard to Figs. 4 and 5. Therefore, the quality alignment should be based on a starting location for a performance monitoring resource 620 associated with the one or more CSI-RSs 605 used to obtain the actual CSI values. Accordingly, the starting location may be shifted by an offset 625 (e.g., an nCSI, ref offset, which may be a quantity of slots) from a slot n2 associated with transmission of the second CSI report 615b. Additionally, the starting location may be shifted by an offset d corresponding to a duration of the performance monitoring resource 620. For example, the starting location may be given by slot n2-nCSI, ref-d. Additionally, or alternatively, the offset for the starting location may be given by -nCSI, ref- (N4-1) ·d.
[0109] In some cases, the priority value for a CSI report (PriiCSI) may be given by Equation 2 below: where Ncells is a maximum quantity of serving cells associated with the UE (e.g., higher layer parameter maxNrofServingCells) ; Ms is a maximum quantity of CSI report configurations associated with the UE (e.g., higher layer parameter maxNrofCSI-ReportConfigurations or maxNrofLTM-CSI-ReportConfigurations) ; y=0 for aperiodic CSI reports 615 (e.g., carried on a PUSCH) , y=1 for semi-persistent CSI reports 615 carried on a PUSCH, y=2 for semi-persistent CSI reports carried on a PUCCH, and y=3 for aperiodic CSI reports 615 (e.g., carried on a PUCCH) ; k=0 for CSI reports 615 that include Layer 1 reference signal received power (RSRP) values or Layer 1 signal-to-interference-and-noise ratio (SINR) values and k=1 for CSI reports 615 that do not include Layer 1 RSRP values or Layer 1 SINR values; c is an index for a serving cell associated with the CSI report 615 or for a serving cell for which a corresponding CSI report configuration is configured; and s is an identifier for the corresponding CSI report configuration (e.g., reportConfigID or ltm-CSI-ReportConfigID) .
[0110] However, the priority value calculated by Equation 2 does not depend on whether a CSI report 615 is a performance monitoring CSI report 615. Consequently, when a performance monitoring CSI report 615 is deprioritized (e.g., dropped in favor of another CSI report) , CSI predictions may continue to be used even when the performance monitoring CSI report 615 indicates that the CSI predictions are not accurate to actual channel conditions
[0111] Accordingly, in some aspects, a priority associated with the first CSI report 615a and the second CSI report 615b may be different. For example, a priority rule for calculating a priority value for CSI reports 615 may be based on whether a CSI report includes performance monitoring information. In some examples, the second CSI report 615b may have a higher priority (e.g., a lower priority value) relative to the first CSI report 615a in accordance with the second CSI report 615b including the performance monitoring information. Alternatively, the second CSI report 615b may have a lower priority (e.g., a higher priority value) relative to the first CSI report 615a in accordance with the second CSI report 615b including the performance monitoring information.
[0112] In some examples, the priority rule for calculating a priority value (PriiCSI) for a CSI report 615 may be given by Equation 3 below: PriiCSI=4·Ncells·Ms·y+2·Ncells·Ms·k+2·Ms·c+Ms·j+s (3) where j is dependent on whether the CSI report 615 includes performance monitoring information. Additionally, or alternatively, the priority rule for calculating a priority value (PriiCSI) for a CSI report 615 may be given by Equation 4 below: PriiCSI=4·Ncells·Ms·y+2·Ncells·Ms·k+·Ncells·Ms·j+Ms·c+s (4)
[0113] In some cases, j=1 when the CSI report 615 includes performance monitoring information and j=0 when the CSI report 615 does not include performance monitoring information. Alternatively, j=0 when the CSI report 615 includes performance monitoring information and j=1 when the CSI report 615 does not include performance monitoring information.
[0114] As indicated above, Fig. 6 is provided as an example. Other examples may differ from what is described with regard to Fig. 6.
[0115] Fig. 7 is a diagram illustrating an example process 700 performed, for example, at a UE or an apparatus of a UE. Example process 700 is an example where the apparatus or the UE (e.g., UE 120) performs operations associated with performance monitoring metrics for CSI predictions.
[0116] As shown in Fig. 7, in some aspects, process 700 may include transmitting, to a network node, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window (block 710) . For example, the UE (e.g., using transmission component 904 or communication manager 906, depicted in Fig. 9) may transmit, to a network node, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window, as described above.
[0117] As further shown in Fig. 7, in some aspects, process 700 may include transmitting, to the network node, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values (block 720) . For example, the UE (e.g., using transmission component 904 or communication manager 906, depicted in Fig. 9) may transmit, to the network node, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values, as described above.
[0118] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below or in connection with one or more other processes described elsewhere herein.
[0119] In a first aspect, process 700 includes receiving one or more CSI reference signals during one or more measurement windows to obtain one or more benchmark CSI values, wherein the performance monitoring information is based at least in part on the one or more benchmark CSI values and the one or more predicted CSI values.
[0120] In a second aspect, alone or in combination with the first aspect, the one or more measurement windows occur prior to the prediction window.
[0121] In a third aspect, alone or in combination with one or more of the first and second aspects, the one or more measurement windows occur during the prediction window.
[0122] In a fourth aspect, alone or in combination with one or more of the first through third aspects, the performance monitoring information includes an indication of at least one of an SGCS, an NMSE, or a channel distribution, associated with a difference between at least one benchmark CSI value of the one or more benchmark CSI values and at least one predicted CSI value of the one or more predicted CSI values.
[0123] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the performance monitoring information includes an indication of whether one or more thresholds are satisfied, and the one or more thresholds being satisfied is in accordance with a difference between the one or more benchmark CSI values and the one or more predicted CSI values.
[0124] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the one or more thresholds being satisfied includes at least one of an SGCS, an NMSE, a channel distribution, or a block error rate satisfying a threshold.
[0125] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the performance monitoring information includes one or more values in accordance with a per-layer granularity, a per-measurement granularity, a per-wideband granularity, a per-subband granularity, or a per-wideband and per-subband granularity associated with the one or more measurements.
[0126] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the performance monitoring information includes one or more values that are averaged for a plurality of layers, for a plurality of measurement samples, for a plurality of subbands, or for a wideband and one or more subbands associated with the one or more measurements.
[0127] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the performance monitoring information includes a set of bits that indicates one or more values in accordance with a uniform quantization or a non-uniform quantization.
[0128] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the performance monitoring information includes a set of bits that indicates one or more values, and a quantity of the set of bits is in accordance with the one or more values.
[0129] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the performance monitoring information includes an average value and one or more values corresponding to a difference from the average value, and the one or more values each correspond to a respective layer, sample, subband, resource block, or wideband.
[0130] In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, process 700 includes transmitting, to the network node, capability information that includes an indication of one or more information types associated with performance monitoring for CSI predictions, and receiving, from the network node, a CSI report configuration that includes an indication of at least one information type in accordance with the capability information, wherein the performance monitoring information included in the second CSI report is in accordance with the at least one information type.
[0131] In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, the CSI report configuration indicates an identifier associated with the first CSI report, wherein the identifier indicates one or more setting combinations, and wherein each setting combination includes at least one of a rank setting, a codebook restriction, a rank restriction, or a quality setting.
[0132] In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, process 700 includes receiving, from the network node, downlink control information that indicates a first setting combination of the one or more setting combinations, wherein the second CSI report is in accordance with the first setting combination.
[0133] In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, the performance monitoring information indicates a decision output associated with CSI predictions, wherein the decision output includes a request for at least one of a deactivation of CSI predictions, a switch from communications with the network node to communications with an additional network node, a change in a size associated with CSI reports, or no changes for CSI predictions.
[0134] In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, an occasion for transmission of the second CSI report is in accordance with a first measurement resource occasion associated with the one or more predicted CSI values.
[0135] In a seventeenth aspect, alone or in combination with one or more of the first through sixteenth aspects, a starting location for a first measurement resource occasion associated with the second CSI report is in accordance with an offset relative to an occasion for transmission of the second CSI report.
[0136] In an eighteenth aspect, alone or in combination with one or more of the first through seventeenth aspects, a first priority value associated with the first CSI report is different form a second priority value associated with the second CSI report in accordance with the second CSI report including the performance monitoring information.
[0137] Although Fig. 7 shows example blocks of process 700, in some aspects, process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 7. Additionally, or alternatively, two or more of the blocks of process 700 may be performed in parallel.
[0138] Fig. 8 is a diagram illustrating an example process 800 performed, for example, at a network node or an apparatus of a network node. Example process 800 is an example where the apparatus or the network node (e.g., network node 110) performs operations associated with performance monitoring metrics for CSI predictions.
[0139] As shown in Fig. 8, in some aspects, process 800 may include receiving, from a UE, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window (block 810) . For example, the network node (e.g., using reception component 1002 or communication manager 1006, depicted in Fig. 10) may receive, from a UE, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window, as described above.
[0140] As further shown in Fig. 8, in some aspects, process 800 may include receiving, from the UE, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values (block 820) . For example, the network node (e.g., using reception component 1002 or communication manager 1006, depicted in Fig. 10) may receive, from the UE, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values, as described above.
[0141] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below or in connection with one or more other processes described elsewhere herein.
[0142] In a first aspect, process 800 includes transmitting one or more CSI reference signals during one or more measurement windows to obtain one or more benchmark CSI values, wherein the performance monitoring information is based at least in part on the one or more benchmark CSI values and the one or more predicted CSI values.
[0143] In a second aspect, alone or in combination with the first aspect, the one or more measurement windows occur prior to the prediction window.
[0144] In a third aspect, alone or in combination with one or more of the first and second aspects, the one or more measurement windows occur during the prediction window.
[0145] In a fourth aspect, alone or in combination with one or more of the first through third aspects, the performance monitoring information includes an indication of at least one of an SGCS, an NMSE, or a channel distribution, associated with a difference between at least one benchmark CSI value of the one or more benchmark CSI values and at least one predicted CSI value of the one or more predicted CSI values.
[0146] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the performance monitoring information includes an indication of whether one or more thresholds are satisfied, and the one or more thresholds being satisfied is in accordance with a difference between the one or more benchmark CSI values and the one or more predicted CSI values.
[0147] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the one or more thresholds being satisfied includes at least one of an SGCS, an NMSE, a channel distribution, or a block error rate satisfying a threshold.
[0148] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the performance monitoring information includes one or more values in accordance with a per-layer granularity, a per-measurement granularity, a per-wideband granularity, a per-subband granularity, or a per-wideband and per-subband granularity associated with the one or more measurements.
[0149] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the performance monitoring information includes one or more values that are averaged for a plurality of layers, for a plurality of measurement samples, for a plurality of subbands, or for a wideband and one or more subbands associated with the one or more measurements.
[0150] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the performance monitoring information includes a set of bits that indicates one or more values in accordance with a uniform quantization or a non-uniform quantization.
[0151] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the performance monitoring information includes a set of bits that indicates one or more values, and a quantity of the set of bits is in accordance with the one or more values.
[0152] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the performance monitoring information includes an average value and one or more values corresponding to a difference from the average value, and the one or more values each correspond to a respective layer, sample, subband, resource block, or wideband.
[0153] In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, process 800 includes receiving, from the UE, capability information that includes an indication of one or more information types associated with performance monitoring for CSI predictions, and transmitting, to the UE, a CSI report configuration that includes an indication of at least one information type in accordance with the capability information, wherein the performance monitoring information included in the second CSI report is in accordance with the at least one information type.
[0154] In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, the CSI report configuration indicates one or more setting combinations, and each setting combination includes at least one of a rank setting, a codebook restriction, a rank restriction, or a quality setting.
[0155] In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, process 800 includes transmitting, to the UE, downlink control information that indicates a first setting combination of the one or more setting combinations, wherein the second CSI report is in accordance with the first setting combination.
[0156] In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, the performance monitoring information indicates a decision output associated with CSI predictions, wherein the decision output includes a request for at least one of a deactivation of CSI predictions, a switch from communications with the network node to communications with an additional network node, a change in a size associated with CSI reports, or no changes for CSI predictions.
[0157] In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, a starting location for a first measurement resource occasion associated with the second CSI report is in accordance with an offset relative to an occasion for transmission of the second CSI report.
[0158] In a seventeenth aspect, alone or in combination with one or more of the first through sixteenth aspects, a first priority value associated with the first CSI report is different form a second priority value associated with the second CSI report in accordance with the second CSI report including the performance monitoring information.
[0159] Although Fig. 8 shows example blocks of process 800, in some aspects, process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 8. Additionally, or alternatively, two or more of the blocks of process 800 may be performed in parallel.
[0160] Fig. 9 is a diagram of an example apparatus 900 for wireless communication. The apparatus 900 may be a UE 120, or a UE 120 may include the apparatus 900. In some aspects, the apparatus 900 includes a reception component 902, a transmission component 904, or a communication manager 906, which may be in communication with one another (for example, via one or more buses or one or more other components) . In some aspects, the communication manager 906 is the communication manager 150 described in connection with Fig. 1. As shown, the apparatus 900 may communicate with another apparatus 908, such as a UE 120 or a network node 110 (such as a CU, a DU, an RU, or a base station) , using the reception component 902 and the transmission component 904. The communication manager 906 may be included in, or implemented via, a processing system (for example, the processing system 140 described in connection with Fig. 1) of the UE 120.
[0161] In some aspects, the apparatus 900 may be configured to perform one or more operations described herein in connection with Figs. 2-6. Additionally, or alternatively, the apparatus 900 may be configured to perform one or more processes described herein, such as process 700 of Fig. 7. In some aspects, the apparatus 900 or one or more components shown in Fig. 9 may include one or more components of the UE 120 described in connection with Fig. 1. Additionally, or alternatively, one or more components shown in Fig. 9 may be implemented within one or more components described in connection with Fig. 1. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in one or more memories. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the functions or operations of the component.
[0162] The reception component 902 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 908. The reception component 902 may provide received communications to one or more other components of the apparatus 900. In some aspects, the reception component 902 may perform signal processing on the received communications, and may provide the processed signals to the one or more other components of the apparatus 900. In some aspects, the reception component 902 may include one or more components of the UE 120 described above in connection with Fig. 1, such as a radio, one or more RF chains, one or more transceivers, or one or more modems, each of which may in turn be coupled with one or more antennas of the UE 120.
[0163] The transmission component 904 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 908. In some aspects, one or more other components of the apparatus 900 may generate communications and may provide the generated communications to the transmission component 904 for transmission to the apparatus 908. In some aspects, the transmission component 904 may perform signal processing on the generated communications, and may transmit the processed signals to the apparatus 908. In some aspects, the transmission component 904 may include one or more components of the UE 120 described above in connection with Fig. 1, such as a radio, one or more RF chains, one or more transceivers, or one or more modems, each of which may in turn be coupled with one or more antennas of the UE 120 described in connection with Fig. 1. In some aspects, the transmission component 904 may be co-located with the reception component 902.
[0164] The communication manager 906 may support operations of the reception component 902 or the transmission component 904. For example, the communication manager 906 may receive information associated with configuring reception of communications by the reception component 902 or transmission of communications by the transmission component 904. Additionally, or alternatively, the communication manager 906 may generate or provide control information to the reception component 902 or the transmission component 904 to control reception or transmission of communications.
[0165] The transmission component 904 may transmit, to a network node 110, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window. The transmission component 904 may transmit, to the network node 110, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.
[0166] The reception component 902 may receive one or more CSI reference signals during one or more measurement windows to obtain one or more benchmark CSI values, wherein the performance monitoring information is based at least in part on the one or more benchmark CSI values and the one or more predicted CSI values.
[0167] The transmission component 904 may transmit, to the network node 110, capability information that includes an indication of one or more information types associated with performance monitoring for CSI predictions.
[0168] The reception component 902 may receive, from the network node 110, a CSI report configuration that includes an indication of at least one information type in accordance with the capability information, wherein the performance monitoring information included in the second CSI report is in accordance with the at least one information type.
[0169] The reception component 902 may receive, from the network node 110, downlink control information that indicates a first setting combination of the one or more setting combinations, wherein the second CSI report is in accordance with the first setting combination.
[0170] The number and arrangement of components shown in Fig. 9 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 9. Furthermore, two or more components shown in Fig. 9 may be implemented within a single component, or a single component shown in Fig. 9 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 9 may perform one or more functions described as being performed by another set of components shown in Fig. 9.
[0171] Fig. 10 is a diagram of an example apparatus 1000 for wireless communication. The apparatus 1000 may be a network node 110, or a network node 110 may include the apparatus 1000. In some aspects, the apparatus 1000 includes a reception component 1002, a transmission component 1004, or a communication manager 1006, which may be in communication with one another (for example, via one or more buses or one or more other components) . In some aspects, the communication manager 1006 is the communication manager 155 described in connection with Fig. 1. As shown, the apparatus 1000 may communicate with another apparatus 1008, such as a UE 120 or a network node 110 (such as a CU, a DU, an RU, or a base station) , using the reception component 1002 and the transmission component 1004. The communication manager 1006 may be included in, or implemented via, a processing system (for example, the processing system 145 described in connection with Fig. 1) of the network node 110.
[0172] In some aspects, the apparatus 1000 may be configured to perform one or more operations described herein in connection with Figs. 2-6. Additionally, or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as process 8 of Fig. 8. In some aspects, the apparatus 1000 or one or more components shown in Fig. 10 may include one or more components of the network node 110 described in connection with Fig. 1. Additionally, or alternatively, one or more components shown in Fig. 10 may be implemented within one or more components described in connection with Fig. 1. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in one or more memories. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the functions or operations of the component.
[0173] The reception component 1002 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1008. The reception component 1002 may provide received communications to one or more other components of the apparatus 1000. In some aspects, the reception component 1002 may perform signal processing on the received communications, and may provide the processed signals to the one or more other components of the apparatus 1000. In some aspects, the reception component 1002 may include one or more components of the network node 110 described above in connection with Fig. 1, such as a radio, one or more RF chains, one or more transceivers, or one or more modems, each of which may in turn be coupled with one or more antennas of the network node 110. In some aspects, the reception component 1002 or the transmission component 1004 may include or may be included in a network interface. The network interface may be configured to obtain or output signals for the apparatus 1000 via one or more communications links, such as a backhaul link, a midhaul link, or a fronthaul link.
[0174] The transmission component 1004 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1008. In some aspects, one or more other components of the apparatus 1000 may generate communications and may provide the generated communications to the transmission component 1004 for transmission to the apparatus 1008. In some aspects, the transmission component 1004 may perform signal processing on the generated communications, and may transmit the processed signals to the apparatus 1008. In some aspects, the transmission component 1004 may include one or more components of the network node 110 described above in connection with Fig. 1, such as a radio, one or more RF chains, one or more transceivers, or one or more modems, each of which may in turn be coupled with one or more antennas of the network node 110 described in connection with Fig. 1. In some aspects, the transmission component 1004 may be co-located with the reception component 1002.
[0175] The communication manager 1006 may support operations of the reception component 1002 or the transmission component 1004. For example, the communication manager 1006 may receive information associated with configuring reception of communications by the reception component 1002 or transmission of communications by the transmission component 1004. Additionally, or alternatively, the communication manager 1006 may generate or provide control information to the reception component 1002 or the transmission component 1004 to control reception or transmission of communications.
[0176] The reception component 1002 may receive, from a UE 120, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window. The reception component 1002 may receive, from the UE 120, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.
[0177] The transmission component 1004 may transmit one or more CSI reference signals during one or more measurement windows to obtain one or more benchmark CSI values, wherein the performance monitoring information is based at least in part on the one or more benchmark CSI values and the one or more predicted CSI values.
[0178] The reception component 1002 may receive, from the UE 120, capability information that includes an indication of one or more information types associated with performance monitoring for CSI predictions.
[0179] The transmission component 1004 may transmit, to the UE 120, a CSI report configuration that includes an indication of at least one information type in accordance with the capability information, wherein the performance monitoring information included in the second CSI report is in accordance with the at least one information type.
[0180] The transmission component 1004 may transmit, to the UE 120, downlink control information that indicates a first setting combination of the one or more setting combinations, wherein the second CSI report is in accordance with the first setting combination.
[0181] The number and arrangement of components shown in Fig. 10 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 10. Furthermore, two or more components shown in Fig. 10 may be implemented within a single component, or a single component shown in Fig. 10 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 10 may perform one or more functions described as being performed by another set of components shown in Fig. 10.
[0182] The following provides an overview of some Aspects of the present disclosure:
[0183] Aspect 1: A method of wireless communication performed by a UE, comprising: transmitting, to a network node, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window; and transmitting, to the network node, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.
[0184] Aspect 2: The method of Aspect 1, further comprising: receiving one or more CSI reference signals during one or more measurement windows to obtain one or more benchmark CSI values, wherein the performance monitoring information is based at least in part on the one or more benchmark CSI values and the one or more predicted CSI values.
[0185] Aspect 3: The method of Aspect 2, wherein the one or more measurement windows occur prior to the prediction window.
[0186] Aspect 4: The method of Aspect 2, wherein the one or more measurement windows occur during the prediction window.
[0187] Aspect 5: The method of any of Aspects 2-4, wherein the performance monitoring information includes an indication of at least one of an SGCS, an NMSE, or a channel distribution, associated with a difference between at least one benchmark CSI value of the one or more benchmark CSI values and at least one predicted CSI value of the one or more predicted CSI values.
[0188] Aspect 6: The method of any of Aspects 2-5, wherein the performance monitoring information includes an indication of whether one or more thresholds are satisfied, and wherein the one or more thresholds being satisfied is in accordance with a difference between the one or more benchmark CSI values and the one or more predicted CSI values.
[0189] Aspect 7: The method of Aspect 6, wherein the one or more thresholds being satisfied includes at least one of an SGCS, an NMSE, a channel distribution, or a block error rate satisfying a threshold.
[0190] Aspect 8: The method of any of Aspects 1-7, wherein the performance monitoring information includes one or more values in accordance with a per-layer granularity, a per-measurement granularity, a per-wideband granularity, a per-subband granularity, or a per-wideband and per-subband granularity associated with the one or more measurements.
[0191] Aspect 9: The method of any of Aspects 1-8, wherein the performance monitoring information includes one or more values that are averaged for a plurality of layers, for a plurality of measurement samples, for a plurality of subbands, or for a wideband and one or more subbands associated with the one or more measurements.
[0192] Aspect 10: The method of any of Aspects 1-9, wherein the performance monitoring information includes a set of bits that indicates one or more values in accordance with a uniform quantization or a non-uniform quantization.
[0193] Aspect 11: The method of any of Aspects 1-10, wherein the performance monitoring information includes a set of bits that indicates one or more values, and wherein a quantity of the set of bits is in accordance with the one or more values.
[0194] Aspect 12: The method of any of Aspects 1-11, wherein the performance monitoring information includes an average value and one or more values corresponding to a difference from the average value, and wherein the one or more values each correspond to a respective layer, sample, subband, resource block, or wideband.
[0195] Aspect 13: The method of any of Aspects 1-12, further comprising: transmitting, to the network node, capability information that includes an indication of one or more information types associated with performance monitoring for CSI predictions; and receiving, from the network node, a CSI report configuration that includes an indication of at least one information type in accordance with the capability information, wherein the performance monitoring information included in the second CSI report is in accordance with the at least one information type.
[0196] Aspect 14: The method of Aspect 13, wherein the CSI report configuration indicates an identifier associated with the first CSI report, wherein the identifier indicates one or more setting combinations, and wherein each setting combination includes at least one of a rank setting, a codebook restriction, a rank restriction, or a quality setting.
[0197] Aspect 15: The method of Aspect 14, further comprising: receiving, from the network node, downlink control information that indicates a first setting combination of the one or more setting combinations, wherein the second CSI report is in accordance with the first setting combination.
[0198] Aspect 16: The method of any of Aspects 1-15, wherein the performance monitoring information indicates a decision output associated with CSI predictions, wherein the decision output includes a request for at least one of a deactivation of CSI predictions, a switch from communications with the network node to communications with an additional network node, a change in a size associated with CSI reports, or no changes for CSI predictions.
[0199] Aspect 17: The method of any of Aspects 1-16, wherein an occasion for transmission of the second CSI report is in accordance with a first measurement resource occasion associated with the one or more predicted CSI values.
[0200] Aspect 18: The method of any of Aspects 1-17, wherein a starting location for a first measurement resource occasion associated with the second CSI report is in accordance with an offset relative to an occasion for transmission of the second CSI report.
[0201] Aspect 19: The method of any of Aspects 1-18, wherein a first priority value associated with the first CSI report is different form a second priority value associated with the second CSI report in accordance with the second CSI report including the performance monitoring information.
[0202] Aspect 20: A method of wireless communication performed by a network node, comprising: receiving, from a UE, a first CSI report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window; and receiving, from the UE, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.
[0203] Aspect 21: The method of Aspect 20, further comprising: transmitting one or more CSI reference signals during one or more measurement windows to obtain one or more benchmark CSI values, wherein the performance monitoring information is based at least in part on the one or more benchmark CSI values and the one or more predicted CSI values.
[0204] Aspect 22: The method of Aspect 21, wherein the one or more measurement windows occur prior to the prediction window.
[0205] Aspect 23: The method of Aspect 21, wherein the one or more measurement windows occur during the prediction window.
[0206] Aspect 24: The method of any of Aspects 21-23, wherein the performance monitoring information includes an indication of at least one of an SGCS, an NMSE, or a channel distribution, associated with a difference between at least one benchmark CSI value of the one or more benchmark CSI values and at least one predicted CSI value of the one or more predicted CSI values.
[0207] Aspect 25: The method of any of Aspects 21-24, wherein the performance monitoring information includes an indication of whether one or more thresholds are satisfied, and wherein the one or more thresholds being satisfied is in accordance with a difference between the one or more benchmark CSI values and the one or more predicted CSI values.
[0208] Aspect 26: The method of Aspect 25, wherein the one or more thresholds being satisfied includes at least one of an SGCS, an NMSE, a channel distribution, or a block error rate satisfying a threshold.
[0209] Aspect 27: The method of any of Aspects 20-26, wherein the performance monitoring information includes one or more values in accordance with a per-layer granularity, a per-measurement granularity, a per-wideband granularity, a per-subband granularity, or a per-wideband and per-subband granularity associated with the one or more measurements.
[0210] Aspect 28: The method of any of Aspects 20-27, wherein the performance monitoring information includes one or more values that are averaged for a plurality of layers, for a plurality of measurement samples, for a plurality of subbands, or for a wideband and one or more subbands associated with the one or more measurements.
[0211] Aspect 29: The method of any of Aspects 20-28, wherein the performance monitoring information includes a set of bits that indicates one or more values in accordance with a uniform quantization or a non-uniform quantization.
[0212] Aspect 30: The method of any of Aspects 20-29, wherein the performance monitoring information includes a set of bits that indicates one or more values, and wherein a quantity of the set of bits is in accordance with the one or more values.
[0213] Aspect 31: The method of any of Aspects 20-30, wherein the performance monitoring information includes an average value and one or more values corresponding to a difference from the average value, and wherein the one or more values each correspond to a respective layer, sample, subband, resource block, or wideband.
[0214] Aspect 32: The method of any of Aspects 20-31, further comprising: receiving, from the UE, capability information that includes an indication of one or more information types associated with performance monitoring for CSI predictions; and transmitting, to the UE, a CSI report configuration that includes an indication of at least one information type in accordance with the capability information, wherein the performance monitoring information included in the second CSI report is in accordance with the at least one information type.
[0215] Aspect 33: The method of Aspect 32, wherein the CSI report configuration indicates one or more setting combinations, and wherein each setting combination includes at least one of a rank setting, a codebook restriction, a rank restriction, or a quality setting.
[0216] Aspect 34: The method of Aspect 33, further comprising: transmitting, to the UE, downlink control information that indicates a first setting combination of the one or more setting combinations, wherein the second CSI report is in accordance with the first setting combination.
[0217] Aspect 35: The method of any of Aspects 20-34, wherein the performance monitoring information indicates a decision output associated with CSI predictions, wherein the decision output includes a request for at least one of a deactivation of CSI predictions, a switch from communications with the network node to communications with an additional network node, a change in a size associated with CSI reports, or no changes for CSI predictions.
[0218] Aspect 36: The method of any of Aspects 20-35, wherein a starting location for a first measurement resource occasion associated with the second CSI report is in accordance with an offset relative to an occasion for transmission of the second CSI report.
[0219] Aspect 37: The method of Aspect 36, wherein a first priority value associated with the first CSI report is different form a second priority value associated with the second CSI report in accordance with the second CSI report including the performance monitoring information.
[0220] Aspect 38: An apparatus for wireless communication at a device, the apparatus comprising one or more processors; one or more memories coupled with the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method of one or more of Aspects 1-37.
[0221] Aspect 39: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors configured to cause the device to perform the method of one or more of Aspects 1-37.
[0222] Aspect 40: An apparatus for wireless communication, the apparatus comprising at least one means for performing the method of one or more of Aspects 1-37.
[0223] Aspect 41: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to perform the method of one or more of Aspects 1-37.
[0224] Aspect 42: 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 of one or more of Aspects 1-37.
[0225] Aspect 43: A device for wireless communication, the device comprising a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause the device to perform the method of one or more of Aspects 1-37.
[0226] Aspect 44: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors individually or collectively configured to cause the device to perform the method of one or more of Aspects 1-37.
[0227] Aspect 45: A device comprising a processing system that includes one or more processors and one or more code-storing memories coupled with the one or more processors, the processing system configured to cause the device to perform the method of one or more of Aspects 1-37.
[0228] Aspect 46: A device comprising a processing system that includes processor circuitry and code-storing memory circuitry, the processing system configured to cause the device to perform the method of one or more of Aspects 1-37.
[0229] It will be apparent that systems or methods described herein may be implemented in different forms of hardware or a combination of hardware and software. A component being configured to perform a function means that the component has a capability to perform the function, and does not require the function to be actually performed by the component, unless noted otherwise.
[0230] As used herein, the term “determine” or “determining” can encompass one or more of a wide variety of actions. For example, “determining” can include one or more of calculating, computing, processing, deriving, detecting, estimating, investigating, looking up, inferring, ascertaining, measuring, resolving, selecting, choosing, obtaining, identifying, interpreting, demodulating, decoding, reading, establishing, forming or generating, among other examples. In some such examples, determining can involve a processor performing some type of calculating, computing, deriving, estimating, inferring, ascertaining, resolving, predicting or other processing to obtain one or more numerical values, sets, elements or other information or results. In some other such examples, determining can involve a processor identifying, looking up, investigating or otherwise obtaining some type of value, set, element or other information or result from a table, a data structure, a database or other memory device or location. In some other such examples, determining can involve a processor identifying, interpreting, demodulating, decoding, detecting, reading or otherwise obtaining some type of value, set, element or other information or result signaled in, for example, a received wireless packet. In some other such examples, determining can involve a processor selecting or choosing one or more values, sets, elements or other information or results from a larger set of values, sets elements or other information or results. In some other such examples, determining can involve a processor performing a measurement, such as on a received signal.
[0231] As used herein, the articles “a” and “an” are intended to refer to one or more items and may be used interchangeably with “one or more” or “at least one. ” As used herein, a phrase referring to “at least one of” or “one or more of” a list of items refers to any combination of those items, including single members. As an example, “at least one of: a, b, or c” is intended to cover: a, b, c, a-b, a-c, b-c, and a-b-c. Additionally, as used herein, a phrase referring to “a” or “an” element refers to one or more of such elements acting individually or collectively to perform the recited function (s) . Additionally, as used herein, a “set” can refer to one or more items, and a “subset” can refer to a whole set or less than the whole set, but not an empty set. “Set, ” “group, ” and similar terms are intended to include one or more items and may be used interchangeably with “one or more. ” Furthermore, as used herein, the term “or” is intended to be interpreted in the inclusive sense (such as when referring to a series) and may be used interchangeably with “and / or, ” unless otherwise explicitly indicated (for example, if used in conjunction with “either” or “only one of” ) . For example, “A or B” may include A only, B only, or a combination of A and B. Also, as used herein, the terms “has, ” “have, ” “having, ” “comprise, ” “comprising, ” “include” and “including, ” and derivatives thereof or similar terms are intended to be open-ended terms that do not limit an element that they modify (for example, an element “having” A also may have B) .
[0232] As used herein, the phrase “associated with” is intended to be interpreted in the inclusive sense, unless otherwise explicitly indicated. For example, the phrase “associated with” is not to be construed as a reference to a closed set of conditions, factors, criteria, elements, components, or actions, among other examples. Specifically, unless a phrase refers to “associated with only ‘a, ’” or the equivalent in context, whatever it is that is “associated with ‘a, ’” may be associated with “a” alone or associated with a combination of “a” and one or more other conditions, factors, criteria, elements, components, or actions, among other examples. In various examples, the phrase “associated with” may be interpreted to mean “in association with, ” “in accordance with, ” “based on, ” “based at least in part on, ” “as a function of, ” “in response to, ” “responsive to, ” or “using” as appropriate in the relevant context unless otherwise explicitly indicated. Furthermore, what follows the phrase “associated with, ” “in association with, ” “in accordance with, ” “based on, ” “based at least in part on, ” “as a function of, ” “in response to, ” “responsive to, ” or “using” is not necessarily the focal point or primary factor associated with the limitation preceding the phrase.
[0233] As used herein, “satisfying a threshold” may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, or not equal to the threshold, among other examples.
[0234] Even though particular combinations of features are recited in the claims or disclosed in the specification, these combinations are not intended to limit the scope of all aspects described herein. Many of these features may be combined in ways not specifically recited in the claims or disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set.
Claims
1.A user equipment (UE) , comprising:a processing system that includes one or more processors and one or more code-storing memories coupled with the one or more processors, the processing system configured to cause the UE to:transmit, to a network node, a first channel state information (CSI) report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window; andtransmit, to the network node, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.2.The UE of claim 1, wherein the processing system is configured to cause the UE to:receive one or more CSI reference signals during one or more measurement windows to obtain one or more benchmark CSI values, wherein the performance monitoring information is based at least in part on the one or more benchmark CSI values and the one or more predicted CSI values.3.The UE of claim 2, wherein the one or more measurement windows occur prior to the prediction window.4.The UE of claim 2, wherein the one or more measurement windows occur during the prediction window.5.The UE of claim 2, wherein the performance monitoring information includes an indication of at least one of a squared generalized cosine similarity (SGCS) , a normalized mean squared error (NMSE) , or a channel distribution, associated with a difference between at least one benchmark CSI value of the one or more benchmark CSI values and at least one predicted CSI value of the one or more predicted CSI values.6.The UE of claim 2, wherein the performance monitoring information includes an indication of whether one or more thresholds are satisfied, and wherein the one or more thresholds being satisfied is in accordance with a difference between the one or more benchmark CSI values and the one or more predicted CSI values.7.The UE of claim 6, wherein the one or more thresholds being satisfied includes at least one of a squared generalized cosine similarity (SGCS) , a normalized mean squared error (NMSE) , a channel distribution, or a block error rate satisfying a threshold.8.The UE of claim 1, wherein the performance monitoring information includes one or more values in accordance with a per-layer granularity, a per-measurement granularity, a per-wideband granularity, a per-subband granularity, or a per-wideband and per-subband granularity associated with the one or more measurements.9.The UE of claim 1, wherein the performance monitoring information includes one or more values that are averaged for a plurality of layers, for a plurality of measurement samples, for a plurality of subbands, or for a wideband and one or more subbands associated with the one or more measurements.10.The UE of claim 1, wherein the performance monitoring information includes a set of bits that indicates one or more values in accordance with a uniform quantization or a non-uniform quantization.11.The UE of claim 1, wherein the performance monitoring information includes a set of bits that indicates one or more values, and wherein a quantity of the set of bits is in accordance with the one or more values.12.The UE of claim 1, wherein the performance monitoring information includes an average value and one or more values corresponding to a difference from the average value, and wherein the one or more values each correspond to a respective layer, sample, subband, resource block, or wideband.13.The UE of claim 1, wherein the processing system is configured to cause the UE to:transmit, to the network node, capability information that includes an indication of one or more information types associated with performance monitoring for CSI predictions; andreceive, from the network node, a CSI report configuration that includes an indication of at least one information type in accordance with the capability information, wherein the performance monitoring information included in the second CSI report is in accordance with the at least one information type.14.The UE of claim 13, wherein the CSI report configuration indicates an identifier associated with the first CSI report, wherein the identifier indicates one or more setting combinations, and wherein each setting combination includes at least one of a rank setting, a codebook restriction, a rank restriction, or a quality setting.15.The UE of claim 14, wherein the processing system is configured to cause the UE to:receive, from the network node, downlink control information that indicates a first setting combination of the one or more setting combinations, wherein the second CSI report is in accordance with the first setting combination.16.The UE of claim 1, wherein the performance monitoring information indicates a decision output associated with CSI predictions, wherein the decision output includes a request for at least one of a deactivation of CSI predictions, a switch from communications with the network node to communications with an additional network node, a change in a size associated with CSI reports, or no changes for CSI predictions.17.The UE of claim 1, wherein an occasion for transmission of the second CSI report is in accordance with a first measurement resource occasion associated with the one or more predicted CSI values.18.The UE of claim 1, wherein a starting location for a first measurement resource occasion associated with the second CSI report is in accordance with an offset relative to an occasion for transmission of the second CSI report.19.The UE of claim 1, wherein a first priority value associated with the first CSI report is different form a second priority value associated with the second CSI report in accordance with the second CSI report including the performance monitoring information.20.A network node, comprising:a processing system that includes one or more processors and one or more code-storing memories coupled with the one or more processors, the processing system configured to cause the network node to:receive, from a user equipment (UE) , a first channel state information (CSI) report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window; andreceive, from the UE, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.21.The network node of claim 20, wherein the processing system is configured to cause the network node to:transmit one or more CSI reference signals during one or more measurement windows to obtain one or more benchmark CSI values, wherein the performance monitoring information is based at least in part on the one or more benchmark CSI values and the one or more predicted CSI values.22.The network node of claim 21, wherein the one or more measurement windows occur prior to the prediction window.23.The network node of claim 21, wherein the one or more measurement windows occur during the prediction window.24.The network node of claim 21, wherein the performance monitoring information includes an indication of at least one of a squared generalized cosine similarity (SGCS) , a normalized mean squared error (NMSE) , or a channel distribution, associated with a difference between at least one benchmark CSI value of the one or more benchmark CSI values and at least one predicted CSI value of the one or more predicted CSI values.25.The network node of claim 21, wherein the performance monitoring information includes an indication of whether one or more thresholds are satisfied, and wherein the one or more thresholds being satisfied is in accordance with a difference between the one or more benchmark CSI values and the one or more predicted CSI values.26.The network node of claim 25, wherein the one or more thresholds being satisfied includes at least one of a squared generalized cosine similarity (SGCS) , a normalized mean squared error (NMSE) , a channel distribution, or a block error rate satisfying a threshold.27.The network node of claim 20, wherein the performance monitoring information includes one or more values in accordance with a per-layer granularity, a per-measurement granularity, a per-wideband granularity, a per-subband granularity, or a per-wideband and per-subband granularity associated with the one or more measurements.28.The network node of claim 20, wherein the performance monitoring information includes one or more values that are averaged for a plurality of layers, for a plurality of measurement samples, for a plurality of subbands, or for a wideband and one or more subbands associated with the one or more measurements.29.A method of wireless communication performed by a user equipment (UE) , comprising:transmitting, to a network node, a first channel state information (CSI) report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window; andtransmitting, to the network node, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.30.A method of wireless communication performed by a network node, comprising:receiving, from a user equipment (UE) , a first channel state information (CSI) report that includes one or more predicted CSI values associated with a prediction window in accordance with one or more measurements obtained prior to the prediction window; andreceiving, from the UE, a second CSI report that includes performance monitoring information associated with the one or more predicted CSI values.