Discontinuous channel state information processing unit occupation
By implementing discontinuous CPU occupation strategies for CSI processing at the UE, resource wastage is minimized, allowing for enhanced measurement and reporting capabilities, thus optimizing computing resources and efficiency.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- QUALCOMM INC
- Filing Date
- 2024-11-08
- Publication Date
- 2026-05-15
AI Technical Summary
In wireless communication systems, the occupation of channel state information (CSI) processing units (CPUs) by user equipment (UE) for extended periods during measurement of reference signal resources leads to resource wastage and limits additional measurements and reports, particularly in scenarios where reference signal resources extend over long durations.
The UE occupies CPUs discontinuously across measurement occasions, allowing unoccupied periods between measurements and potentially reducing the number of CPUs during measurement versus inference, with the initial measurement occasion determined by preconfiguration or the network, optimizing memory and computing resources.
This approach reduces CPU occupation time, enabling additional measurements and reports, thereby optimizing resource utilization and improving computing efficiency at the UE.
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Figure CN2024130712_15052026_PF_FP_ABST
Abstract
Description
DISCONTINUOUS CHANNEL STATE INFORMATION PROCESSING UNIT OCCUPATION
[0001] FIELD OF THE DISCLOSURE
[0002] Aspects of the present disclosure generally relate to wireless communication and specifically relate to techniques, apparatuses, and methods associated with discontinuous channel state information processing unit occupation.BACKGROUND
[0003] Wireless communication systems are widely deployed to provide various services, which may involve carrying or supporting voice, text, other messaging, video, data, and / 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, and / 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.
[0004] An example telecommunication standard is New Radio (NR) . NR, which may also be referred to as 5G, is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) . NR (and other RATs beyond NR) may be designed to better support enhanced mobile broadband (eMBB) access, Internet of things (IoT) networks or reduced capability device deployments, and ultra-reliable low latency communication (URLLC) applications. To support these verticals, NR systems 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) , licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployments, sidelink and other device-to-device direct communication technologies (for example, cellular vehicle-to-everything (CV2X) communication) , multiple-subscriber implementations, high-precision positioning, and / or radio frequency (RF) sensing, among other examples. 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.SUMMARY
[0005] Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE) . The method may include receiving a configuration for a set of reference signal resources. The method may include receiving a configuration for a channel state information (CSI) report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource. The method may include performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a set of CSI processing units (CPUs) at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions. The method may include transmitting the CSI report based at least in part on the set of measurements.
[0006] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include receiving a configuration for a set of reference signal resources. The method may include receiving a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource. The method may include performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a first set of CPUs at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and a second set of CPUs, larger than the first set of CPUs, are occupied at least during inference. The method may include transmitting the CSI report based at least in part on the set of measurements.
[0007] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include receiving a configuration for a set of reference signal resources. The method may include receiving a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource. The method may include performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein an initial measurement occasion in the set of measurement occasions is selected by the UE, indicated by a preconfiguration, or indicated by a network. The method may include transmitting the CSI report based at least in part on the set of measurements.
[0008] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to cause the UE to receive a configuration for a set of reference signal resources. The one or more processors may be configured to cause the UE to receive a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource. The one or more processors may be configured to cause the UE to perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a set of CPUs at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions. The one or more processors may be configured to cause the UE to transmit the CSI report based at least in part on the set of measurements.
[0009] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to cause the UE to receive a configuration for a set of reference signal resources. The one or more processors may be configured to cause the UE to receive a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource. The one or more processors may be configured to cause the UE to perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a first set of CPUs at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and a second set of CPUs, larger than the first set of CPUs, are occupied at least during inference. The one or more processors may be configured to cause the UE to transmit the CSI report based at least in part on the set of measurements.
[0010] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to cause the UE to receive a configuration for a set of reference signal resources. The one or more processors may be configured to cause the UE to receive a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource. The one or more processors may be configured to cause the UE to perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein an initial measurement occasion in the set of measurement occasions is selected by the UE, indicated by a preconfiguration, or indicated by a network. The one or more processors may be configured to cause the UE to transmit the CSI report based at least in part on the set of measurements.
[0011] 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 receive a configuration for a set of reference signal resources. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource. The set of instructions, when executed by one or more processors of the UE, may cause the UE to perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a set of CPUs at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit the CSI report based at least in part on the set of measurements.
[0012] 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 receive a configuration for a set of reference signal resources. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource. The set of instructions, when executed by one or more processors of the UE, may cause the UE to perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a first set of CPUs at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and a second set of CPUs, larger than the first set of CPUs, are occupied at least during inference. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit the CSI report based at least in part on the set of measurements.
[0013] 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 receive a configuration for a set of reference signal resources. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource. The set of instructions, when executed by one or more processors of the UE, may cause the UE to perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein an initial measurement occasion in the set of measurement occasions is selected by the UE, indicated by a preconfiguration, or indicated by a network. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit the CSI report based at least in part on the set of measurements.
[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a configuration for a set of reference signal resources. The apparatus may include means for receiving a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource. The apparatus may include means for performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a set of CPUs at the apparatus are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions. The apparatus may include means for transmitting the CSI report based at least in part on the set of measurements.
[0015] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a configuration for a set of reference signal resources. The apparatus may include means for receiving a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource. The apparatus may include means for performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a first set of CPUs at the apparatus are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and a second set of CPUs, larger than the first set of CPUs, are occupied at least during inference. The apparatus may include means for transmitting the CSI report based at least in part on the set of measurements.
[0016] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a configuration for a set of reference signal resources. The apparatus may include means for receiving a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource. The apparatus may include means for performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein an initial measurement occasion in the set of measurement occasions is selected by the apparatus, indicated by a preconfiguration, or indicated by a network. The apparatus may include means for transmitting the CSI report based at least in part on the set of measurements.
[0017] 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, base station, network node, network entity, wireless communication device, and / or processing system as substantially described with reference to, and as illustrated by, this specification and accompanying drawings.
[0018] The foregoing paragraphs of this section have broadly summarized some aspects of the present disclosure. These and additional aspects and associated advantages will be described hereinafter. The disclosed aspects may be used as a basis for modifying or designing other aspects for carrying out the same or similar purposes of the present disclosure. Such equivalent aspects do not depart from the scope of the appended claims. Characteristics of the aspects disclosed herein, both their organization and method of operation, together with associated advantages, will be better understood from the following description when considered in connection with the accompanying drawings.BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The appended drawings illustrate some aspects of the present disclosure but are not limiting of the scope of the present disclosure because the description may enable other aspects. Each of the drawings is provided for purposes of illustration and description, and not as a definition of the limits of the claims. The same or similar reference numbers in different drawings may identify the same or similar elements.
[0020] Fig. 1 is a diagram illustrating an example of a wireless communication network, in accordance with the present disclosure.
[0021] Fig. 2 is a diagram illustrating an example disaggregated network node architecture, in accordance with the present disclosure.
[0022] Fig. 3 is a diagram illustrating an example of artificial intelligence or machine learning based beam management, in accordance with the present disclosure.
[0023] Figs. 4A, 4B, and 4C are diagrams illustrating examples associated with scheduling channel state information (CSI) reports, in accordance with the present disclosure.
[0024] Figs. 5A, 5B, 5C, and 5D are diagrams illustrating examples associated with CSI processing unit (CPU) occupation rules, in accordance with the present disclosure.
[0025] Fig. 6 is a diagram illustrating an example associated with set level CPU occupation and resource level CPU occupation, in accordance with the present disclosure.
[0026] Figs. 7A and 7B are diagrams illustrating examples associated with duty cycle calculation, in accordance with the present disclosure.
[0027] Figs. 8A, 8B, and 8C are diagrams illustrating examples associated with CPU occupation rules, in accordance with the present disclosure.
[0028] Fig. 9 is a diagram illustrating an example process associated with discontinuous CPU occupation, in accordance with the present disclosure.
[0029] Fig. 10 is a diagram illustrating an example process associated with different measurement and inference CPU occupation, in accordance with the present disclosure.
[0030] Fig. 11 is a diagram illustrating an example process associated with initial measurement occasion determination, in accordance with the present disclosure.
[0031] Figs. 12 and 13 are diagrams of example apparatuses for wireless communication, in accordance with the present disclosure.DETAILED DESCRIPTION
[0032] Various aspects of the present disclosure are described hereinafter with reference to the accompanying drawings. However, aspects of the present disclosure may be embodied in many different forms. The present disclosure is not to be construed as limited to any specific aspect illustrated by or described with reference to an accompanying drawing or otherwise presented in this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. One skilled in the art may appreciate that the scope of the disclosure is intended to cover any aspect of the disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of the disclosure. For example, an apparatus may be implemented or a method may be practiced using various combinations or quantities of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover an apparatus having, or a method that is practiced using, other structures and / or functionalities in addition to or other than the structures and / or functionalities with which various aspects of the disclosure set forth herein may be practiced. Any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.
[0033] Several aspects of telecommunication systems will now be presented with reference to various methods, operations, apparatuses, and techniques. These methods, operations, apparatuses, and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively referred to as “elements” ) . These elements may be implemented using hardware, software, or a combination of hardware and software. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.
[0034] In a wireless network, a user equipment (UE) may apply models for beam prediction. For example, the UE may use measurements from a first set of beams (also referred to as “Set B” beams) to predict measurements for a second set of beams (also referred to as “Set A” beams) . The UE may predict measurements across space (e.g., the first set of beams being wider than the second set of beams) and / or across time (e.g., predicting future measurements for the second set of beams using historic measurements of the first set of beams) .
[0035] Generally, a UE performs measurements of the Set B beams and of the Set A beams during a data collection phase (in order to train a temporal beam prediction model) . Accordingly, a network may configure reference signals for the Set B beams and the Set A beams according to a periodicity. The network may use periodic (P) , semi-persistent (SP) , and / or aperiodic (AP) channel state information (CSI) reference signal (CSI-RS) configurations, for example.
[0036] Additionally, during an inference phase, the network may instruct the UE to generate predicted results (e.g., for the Set A beams) using historic measurements (e.g., of the Set B beams) and the temporal beam prediction model. In some cases, the network may request one or more predicted results for one or more prediction targets relative to a CSI reference resource (e.g., determined according to Third Generation Partnership Project (3GPP) specifications and / or another standard) . The network may configure a CSI report for the prediction target (s) using reference signal resources that were previously configured (e.g., as P, SP, and / or AP CSI resources) .
[0037] During measurement and reporting, the UE occupies CSI processing units (CPUs) . The UE generally has a maximum quantity of CPUs and may drop measurements and reports that would cause the UE to occupy more than the maximum quantity of CPUs. Because the reference signal resources for Set B beams may extend over a long period of time (e.g., hundreds of milliseconds (ms) ) , CPUs for measurement of the Set B beams may be occupied for a long time. As a result, the UE may be disallowed from additional measurements and reports, which wastes computing resources at the UE that otherwise would have been available.
[0038] Various aspects relate generally to occupying CPUs at a UE discontinuously across a set of measurement occasions for a CSI report for a set of prediction targets. Some aspects more specifically relate to CPUs at the UE being occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion and being unoccupied between measurement occasions in the set of measurement occasions. In some aspects, the CPUs may be occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a last symbol of a message carrying the CSI report, or from a last symbol of a configuration triggering the CSI report until the last symbol of the message carrying the CSI report. Additionally, or alternatively, various aspects relate generally to occupying fewer CPUs during measurement as opposed to inference. Some aspects more specifically relate to occupying a first set of CPUs at the UE from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and occupying a second set of CPUs, larger than the first set of CPUs, at least during inference. In some aspects, the first set of CPUs are occupied from a buffer symbol until a last symbol of a message carrying the CSI report. Additionally, or alternatively, various aspects relate generally to determining an initial measurement occasion for a CSI report for a set of prediction targets. The initial measurement occasion may be selected by the UE, determined according to a preconfiguration (e.g., based on 3GPP specifications and / or another standard) , or indicated by a network.
[0039] 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 reduce CPU occupation time when a UE is not performing measurements or inference, which allows the UE to perform additional measurements and / or reports by using computing resources that would otherwise have been wasted. Additionally, or alternatively, the described techniques can be used to reduce a number of CPUs that are occupied during measurement as opposed to inference, which similarly allows the UE to perform additional measurements and / or reports by using computing resources that would otherwise have been wasted. Additionally, or alternatively, transparent selection of the initial measurement occasion by the UE allows the UE to optimize memory overhead and computing resources. On the other hand, non-transparent selection of the initial measurement occasion (e.g., according to a preconfiguration and / or by the network) allows the network to estimate accuracy of the CSI report (for the set of prediction targets) .
[0040] As described above, wireless communication systems may be deployed to provide various services, which may involve carrying or supporting voice, text, other messaging, video, data, and / or other traffic. Some wireless communications systems may employ multiple-access radio access technologies (RATs) . The multiple-access RATs may be capable of supporting communication with multiple wireless communication devices by sharing the available system resources (for example, time domain resources, frequency domain resources, spatial domain resources, and / or device transmit power, among other examples) . Examples of such multiple-access RATs include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.
[0041] Multiple-access RATs are supported by technological advancements that have been adopted in various telecommunication standards, which define common protocols that enable wireless communication devices to communicate on a local, municipal, enterprise, national, regional, or global level. For example, 5G New Radio (NR) is part of a continuous mobile broadband evolution promulgated by the 3GPP. 5G 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, and / or massive machine-type communication (mMTC) , among other examples.
[0042] 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, and / or artificial intelligence or machine learning (AI / ML) , among other examples.
[0043] 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 and / or aerial platforms, among other examples.
[0044] 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. The methods, operations, apparatuses, and techniques described herein may enable one or more of the foregoing technologies or new technologies and / or support one or more of the foregoing use cases or new use cases.
[0045] Fig. 1 is a diagram illustrating an example of a wireless communication network 100, in accordance with the present disclosure. The wireless communication network 100 may be or may include elements of a 5G (or NR) 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 a network node (NN) 110a and a network node 110b. 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. In some examples, a UE 120 may also communicate with other UEs 120 and a network node 110 may communicate with a core network and with other network nodes 110.
[0046] The network nodes 110 and the UEs 120 of the wireless communication network 100 may communicate using the electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, carriers, and / or channels. For example, devices of the wireless communication network 100 may communicate using one or more operating bands. In some aspects, multiple wireless communication networks 100 may be deployed in a given geographic area. Each wireless communication network 100 may support a particular RAT (which may also be referred to as an air interface) and may operate on one or more carrier frequencies in one or more frequency bands or ranges. In some examples, when multiple RATs are deployed in a given geographic area, each RAT in the geographic area may operate on different frequencies to avoid interference with other RATs. Additionally or alternatively, in some examples, the wireless communication network 100 may implement dynamic spectrum sharing (DSS) , in which multiple RATs are implemented with dynamic bandwidth allocation (for example, based on user demand) in a single frequency band. In some examples, the wireless communication network 100 may support communication over unlicensed spectrum, where access to an unlicensed channel is subject to a channel access mechanism. For example, in a shared or unlicensed frequency band, a transmitting device may perform a channel access procedure, such as a listen-before-talk (LBT) procedure, to contend against other devices for channel access before transmitting on a shared or unlicensed channel.
[0047] Various operating bands have been 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, despite being different than the extremely high frequency (EHF) band (30 GHz through 300 GHz) , which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band. The frequencies between FR1 and FR2 are often referred to as mid-band frequencies, which include FR3. Frequency bands falling within FR3 may inherit FR1 characteristics or FR2 characteristics, and thus may effectively extend features of FR1 or FR2 into the mid-band frequencies. Thus, “sub-6 GHz, ” if used herein, may broadly refer to frequencies that are less than 6 GHz, that are within FR1, and / or that are included in mid-band frequencies. Similarly, the term “millimeter wave, ” if used herein, may broadly refer to mid-band frequencies or to frequencies that are within FR2, FR4, FR4-a or FR4-1, FR5, and / or the EHF band. Higher frequency bands may extend 5G NR operation, 6G operation, and / or other RATs beyond 52.6 GHz.
[0048] A network node 110 and / 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, such as a processing system 140 of the UE 120 or a processing system 145 of the network node 110. A processing system (for example, the processing system 140 and / 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) ) , and / 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.
[0049] 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 (RAM) or read-only memory (ROM) , 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 and may individually or collectively store processor-executable code or instructions (such as software) that, when executed by one or more of the processors, may configure one or more of the processors 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.
[0050] 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 and / or the processing system 145 include or implement one or more of the modems. The processing system 140 and the processing system 145 may also 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 and / or the processing system 145 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) , and / 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 of the UE 120 or by the processing system 145 of the network node 110) .
[0051] 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.
[0052] A network node 110 may be, may include, or may also 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, and / 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 consist of 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.
[0053] Alternatively, and as also shown, a network node 110 may be a disaggregated network node (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 and / or logically distributed among two or more nodes in the same geographic location or in different geographic locations. An example disaggregated network node architecture is described in more detail below with reference to Fig. 2. 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.
[0054] The 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 DU may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and / 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, and / 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. In some examples, a single network node 110 may include a combination of one or more CUs, one or more DUs, and / or one or more RUs. In some examples, a CU, a DU, and / 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.
[0055] Some network nodes 110 (for example, a base station, an RU, or a TRP) may provide communication coverage for a particular geographic area. The term “cell” can refer to a coverage area of a network node 110 or to a network node 110 itself, depending on the context in which the term is used. A network node 110 may support one or more cells (for example, each cell may support communication within an angular (for example, 60 degree) range around the network node) . In some examples, a network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, or another type of cell. A macro cell may cover a relatively large geographic area (for example, several kilometers in radius) and may allow unrestricted access by UEs 120 with associated service subscriptions. A pico cell may cover a relatively small geographic area and may also allow unrestricted access by UEs 120 with associated service subscriptions. A femto cell may cover a relatively small geographic area (for example, a home) and may allow restricted access by UEs 120 having association with the femto cell (for example, UEs 120 in a closed subscriber group (CSG) ) . In some examples, a cell may not necessarily be stationary. For example, the geographic area of the cell may move according to the location of an associated mobile network node 110 (for example, a train, a satellite, an unmanned aerial vehicle, or an NTN network node) .
[0056] The wireless communication network 100 may be a heterogeneous network that includes network nodes 110 of different types, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, aggregated network nodes, and / or disaggregated network nodes, among other examples. Various different types of network nodes 110 may generally transmit at different power levels, serve different coverage areas (for example, a cell 130a and a cell 130b) , and / or have different impacts on interference in the wireless communication network 100 than other types of network nodes 110.
[0057] 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 may also be referred to as an access terminal, a mobile station, 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) , a UE function of a network node, and / or any other suitable device or function that may communicate via a wireless medium.
[0058] Some UEs 120 may be classified according to different categories in association with different complexities and / or different capabilities. UEs 120 in a first category may facilitate massive IoT in the wireless communication network 100, and may offer low complexity and / or cost relative to UEs 120 in a second category. UEs 120 in a second category may include mission-critical IoT devices, legacy UEs, baseline UEs, high-tier UEs, advanced UEs, full-capability UEs, and / or premium UEs that are capable of URLLC, eMBB, and / or precise positioning in the wireless communication network 100, among other examples. A third category of UEs 120 may have mid-tier complexity and / or capability (for example, a capability between that of the UEs 120 of the first category and that of the UEs 120 of the second capability) . 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, and / or an NR-Lite UE, among other examples. RedCap UEs may bridge a gap between the capability and complexity of NB-IoT devices and / or eMTC UEs, and mission-critical IoT devices and / or premium UEs. RedCap UEs may include, for example, wearable devices, IoT devices, industrial sensors, or cameras that are associated with a limited bandwidth, power capacity, and / or transmission range, among other examples. RedCap UEs may support healthcare environments, building automation, electrical distribution, process automation, transport and logistics, or smart city deployments, among other examples.
[0059] 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) .
[0060] 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) and / or reconfigured (for example, in real-time or near-real-time) according to changing network conditions in the wireless communication network 100 and / 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. The use of BWPs enables more efficient use of the available frequency domain resources in the wireless communication network 100 because fewer frequency domain resources may be allocated to a BWP for a UE 120 (which may reduce the quantity of frequency domain resources that a UE 120 is required to monitor and reduce UE power consumption by enabling the UE to monitor fewer frequency domain resources) , leaving more frequency domain resources to be spread across multiple UEs 120. Thus, BWPs may also assist in the implementation of lower-capability (for example, RedCap) UEs 120 by facilitating the configuration of smaller bandwidths for communication by such UEs 120 and / or by facilitating reduced UE power consumption.
[0061] 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 channel state information (CSI) reference signal (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 and / 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.
[0062] 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 and / 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 physical uplink control channels (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) , and / 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) , and / 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.
[0063] 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. The network node 110 may transmit, to the UE 120, an indication of the selected MCS for the downlink signal, such as via DCI that schedules the downlink signal. As another example, the network node 110 may transmit, and the UE 120 may receive, an indication of an MCS to be applied for the one or more uplink signals, such as via DCI scheduling transmission of the one or more uplink signals.
[0064] The network node 110 or the UE 120 (such as by using the processing system 145 or the processing system 140, respectively, and / 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, and / 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, and / 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 and / 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 110 or the UE 120 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 110 may provide precoding information indicating which precoder, defined by the codebook, is to be used by the UE 120. 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 110 or the UE 120 may transmit the processed downlink or uplink signals, respectively, via one or more antennas.
[0065] The network node 110 or the UE 120 may receive uplink signals or downlink signals, respectively, via one or more antennas. The network node 110 or the UE 120 (for example, using the processing system 145 or the processing system 140, respectively, and / 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, and / 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 110 or the UE 120 (for example, using the processing system 145 or the processing system 140, respectively, and / or a coupled decoder or one or more modems) may decode the received information (such as by using an ECC, a decoding operation, and / or an FEC operation) to detect errors and / 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.
[0066] In some examples, a UE 120 and a network node 110 may perform MIMO communication. “MIMO” generally refers to transmitting or receiving multiple signals (such as multiple layers or multiple data streams) simultaneously over the same time and frequency resources. MIMO techniques generally exploit multipath propagation. A network node 110 and / or UE 120 may communicate using massive MIMO, multi-user MIMO, or single-user MIMO, which may involve rapid switching between beams or cells. For example, the amplitudes and / or phases of signals transmitted via antenna elements and / or sub-elements may be modulated and shifted relative to each other (such as by manipulating a phase shift, a phase offset, and / or an amplitude) to generate one or more beams, which is referred to as beamforming. For example, the network node 110b may generate one or more beams 160a, and the UE 120b 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 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, and / or a vertical direction) , a set of parameters that indicate one or more aspects of a directional signal, a direction associated with the signal, and / or a set of directional resources associated with the signal, among other examples.
[0067] MIMO may be implemented using various spatial processing or spatial multiplexing operations. In some examples, MIMO may include a massive MIMO technique which may be associated with an increased (for example, “massive” ) quantity of antennas at the network node 110 and / or at the UE 120, such as in a network implementing mmWave technology. Massive MIMO may improve communication reliability by enabling a network node 110 and / or a UE 120 to communicate the same data across different propagation (or spatial) paths. In some examples, MIMO may support simultaneous transmission to multiple receivers, referred to as multi-user MIMO (MU-MIMO) . Some RATs may employ MIMO techniques, such as multi-TRP (mTRP) operation (including redundant transmission or reception on multiple TRPs) , reciprocity in the time domain or the frequency domain, single-frequency-network (SFN) transmission, or non-coherent joint transmission (NC-JT) .
[0068] To support MIMO techniques, the network node 110 and the UE 120 may perform one or more beam management operations, such as an initial beam acquisition operation, one or more beam refinement operations, and / or a beam recovery operation. For example, an initial beam acquisition operation may involve the network node 110 transmitting signals (for example, SSBs, CSI-RSs, or other signals) via respective beams (for example, of the beams 160a 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 160b of the UE 120) to identify a best beam (or beam pair) for communication between the UE 120 and the network node 110. For example, the UE 120 may transmit an indication (for example, in a message associated with a random access channel (RACH) operation) of a (best) identified beam of the network node 110 (for example, by indicating an SSBRI or other identifier associated with the beam) . 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 via one or more spatial parameters, such as a transmission configuration indicator (TCI) state and / or a quasi co-location (QCL) parameter, among other examples. The network node 110 and the UE 120 may increase reliability and / or achieve efficiencies in throughput, signal strength, and / or other signal properties for massive MIMO operations by performing the beam management operations.
[0069] Some aspects and techniques as described herein may be implemented, at least in part, using an artificial intelligence (AI) program (for example, referred to herein as an “AI / ML model” ) , such as a program that includes a machine learning (ML) model and / or an artificial neural network (ANN) model. The AI / ML model may be deployed at one or more devices 165 (for example, a network node 110 and / or UEs 120) . For example, the one or more devices 165 may include a UE 120 (for example, the processing system 140) , a network node 110 (for example, the processing system 145) , one or more servers, and / or one or more components of a cloud computing network, among other examples. In some examples, the AI / ML model (or an instance of the AI / ML model) may be deployed at multiple devices (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, 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, the AI / ML model (s) may be trained to identify patterns or relationships in data corresponding to the wireless communication network 100, a device, and / 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.
[0070] In some aspects, the UE 120 may include a processing system 140 with a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may receive a configuration for a set of reference signal resources; may receive a configuration for a CSI report associated with a set of prediction targets, where the set of prediction targets are later in time than a CSI reference resource; may perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, where a set of CPUs at the UE 120 are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions; and may transmit the CSI report based at least in part on the set of measurements. Additionally, or alternatively, the communication manager 150 may receive a configuration for a set of reference signal resources; may receive a configuration for a CSI report associated with a set of prediction targets, where the set of prediction targets are later in time than a CSI reference resource; may perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, where a first set of CPUs at the UE 120 are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and a second set of CPUs, larger than the first set of CPUs, are occupied at least during inference; and may transmit the CSI report based at least in part on the set of measurements. Additionally, or alternatively, the communication manager 150 may receive a configuration for a set of reference signal resources; may receive a configuration for a CSI report associated with a set of prediction targets, where the set of prediction targets are later in time than a CSI reference resource; may perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, where an initial measurement occasion in the set of measurement occasions is selected by the UE, indicated by a preconfiguration, or indicated by a network; and may transmit the CSI report based at least in part on the set of measurements. Additionally, or alternatively, the communication manager 150 may perform one or more other operations described herein.
[0071] In some aspects, the network node 110 may include a processing system 145 with a communication manager 155. As described in more detail elsewhere herein, the communication manager 155 may transmit a configuration for a set of reference signal resources; may transmit a configuration for a CSI report associated with a set of prediction targets, where the configuration is based at least in part on a set of CPUs occupied at the UE 120; and may receive the CSI report for the set of prediction targets. Additionally, or alternatively, the communication manager 155 may transmit a configuration for a set of reference signal resources; may transmit a configuration for a CSI report associated with a set of prediction targets, where an initial measurement occasion for the CSI report is indicated by a preconfiguration or indicated by the network node 110; and may receive the CSI report for the set of prediction targets. Additionally, or alternatively, the communication manager 155 may perform one or more other operations described herein.
[0072] Fig. 2 is a diagram illustrating an example disaggregated network node architecture 200, in accordance with the present disclosure. One or more components of the example disaggregated network node architecture 200 may be, may include, or may be included in one or more network nodes (such one or more network nodes 110) . The disaggregated network node architecture 200 may include a CU 210 that can communicate directly with a core network 220 via a backhaul link, or that can communicate indirectly with the core network 220 via one or more disaggregated control units, such as a non-real-time (Non-RT) RAN intelligent controller (RIC) 250 associated with a Service Management and Orchestration (SMO) Framework 260 and / or a near-real-time (Near-RT) RIC 270 (for example, via an E2 link) . The CU 210 may communicate with one or more DUs 230 via respective midhaul links, such as via F1 interfaces. Each of the DUs 230 may communicate with one or more RUs 240 via respective fronthaul links. Each of the RUs 240 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 240.
[0073] Each of the components of the disaggregated network node architecture 200, including the CUs 210, the DUs 230, the RUs 240, the Near-RT RICs 270, the Non-RT RICs 250, and the SMO Framework 260, may include one or more interfaces or may be coupled with one or more interfaces for receiving or transmitting signals, such as data or information, via a wired or wireless transmission medium.
[0074] In some aspects, the CU 210 may be logically split into one or more CU user plane (CU-UP) units and one or more CU control plane (CU-CP) units. A CU-UP unit may communicate bidirectionally with a CU-CP unit via an interface, such as the E1 interface when implemented in an O-RAN configuration. The CU 210 may be deployed to communicate with one or more DUs 230, as necessary, for network control and signaling. Each DU 230 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 240. For example, a DU 230 may host various layers, such as an RLC layer, a MAC layer, or one or more PHY layers, such as one or more high PHY layers or one or more low PHY layers. Each layer (which also may be referred to as a module) may be implemented with an interface for communicating signals with other layers (and modules) hosted by the DU 230, or for communicating signals with the control functions hosted by the CU 210. Each RU 240 may implement lower layer functionality. In some aspects, real-time and non-real-time aspects of control and user plane communication with the RU (s) 240 may be controlled by the corresponding DU 230.
[0075] The SMO Framework 260 may support RAN deployment and provisioning of non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO Framework 260 may support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operations and maintenance interface, such as an O1 interface. For virtualized network elements, the SMO Framework 260 may interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 290) to perform network element life cycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface, such as an O2 interface. A virtualized network element may include, but is not limited to, a CU 210, a DU 230, an RU 240, a non-RT RIC 250, and / or a Near-RT RIC 270. In some aspects, the SMO Framework 260 may communicate with a hardware aspect of a 4G RAN, a 5G NR RAN, and / or a 6G RAN, such as an open eNB (O-eNB) 280, via an O1 interface. Additionally or alternatively, the SMO Framework 260 may communicate directly with each of one or more RUs 240 via a respective O1 interface. In some deployments, this configuration can enable each DU 230 and the CU 210 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
[0076] The Non-RT RIC 250 may include or may implement a logical function that enables non-real-time control and optimization of RAN elements and resources, AI / ML workflows including model training and updates, and / or policy-based guidance of applications and / or features in the Near-RT RIC 270. The Non-RT RIC 250 may be coupled to or may communicate with (such as via an A1 interface) the Near-RT RIC 270. The Near-RT RIC 270 may include or may implement a logical function that enables near-real-time control and optimization of RAN elements and resources via data collection and actions via an interface (such as via an E2 interface) connecting one or more CUs 210, one or more DUs 230, and / or an O-eNB 280 with the Near-RT RIC 270.
[0077] In some aspects, to generate AI / ML models to be deployed in the Near-RT RIC 270, the Non-RT RIC 250 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 270 and may be received at the SMO Framework 260 or the Non-RT RIC 250 from non-network data sources or from network functions. In some examples, the Non-RT RIC 250 or the Near-RT RIC 270 may tune RAN behavior or performance. For example, the Non-RT RIC 250 may monitor long-term trends and patterns for performance and may employ AI / ML models to perform corrective actions via the SMO Framework 260 (such as reconfiguration via an O1 interface) or via creation of RAN management policies (such as A1 interface policies) .
[0078] The network node 110, the processing system 145 of the network node 110, the UE 120, the processing system 140 of the UE 120, the CU 210, the DU 230, the RU 240, or any other component (s) of Fig. 1 and / or Fig. 2 may implement one or more techniques or perform one or more operations associated with discontinuous CPU occupation, as described in more detail elsewhere herein. For example, the processing system 145 of the network node 110, the processing system 140 of the UE 120, the CU 210, the DU 230, or the RU 240 may perform or direct operations of, for example, process 900 of Fig. 9, process 1000 of Fig. 10, process 1100 of Fig. 11, 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, the CU 210, the DU 230, or the RU 240. 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, the UE 120, the CU 210, the DU 230, or the RU 240, may cause the one or more processors to perform process 900 of Fig. 9, process 1000 of Fig. 10, process 1100 of Fig. 11, or other processes as described herein. In some examples, executing instructions may include running the instructions, converting the instructions, compiling the instructions, and / or interpreting the instructions, among other examples.
[0079] In some aspects, a UE (e.g., UE 120 and / or apparatus 1200 of Fig. 12) may include means for receiving a configuration for a set of reference signal resources; means for receiving a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource; means for performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a set of CPUs at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions; and / or means for transmitting the CSI report based at least in part on the set of measurements. Additionally, or alternatively, the UE may include means for receiving a configuration for a set of reference signal resources; means for receiving a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource; means for performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a first set of CPUs at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and a second set of CPUs, larger than the first set of CPUs, are occupied at least during inference; and / or means for transmitting the CSI report based at least in part on the set of measurements. Additionally, or alternatively, the UE may include means for receiving a configuration for a set of reference signal resources; means for receiving a configuration for a CSI report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource; means for performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein an initial measurement occasion in the set of measurement occasions is selected by the UE, indicated by a preconfiguration, or indicated by a network; and / or means for transmitting the CSI report based at least in part on the set of measurements. The means for the UE 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 1202 depicted and described in connection with Fig. 12) , and / or a transmission component (for example, transmission component 1204 depicted and described in connection with Fig. 12) , among other examples.
[0080] Fig. 3 is a diagram illustrating an example 300 of AI / ML based beam management, in accordance with the present disclosure. As shown in Fig. 3, an AI / ML model 310 may be deployed at or on a UE 120. For example, a model inference host (such as a model inference host) may be deployed at, or on, a UE 120. The AI / ML model 310 may enable the UE 120 to determine one or more inferences or predictions based on data input to the AI / ML model 310.
[0081] For example, as shown by reference number 315, an input to the AI / ML model 310 may include measurements associated with a first set of beams. For example, a network node 110 may transmit one or more signals using respective beams from the first set of beams. The UE 120 may perform measurements (e.g., L1 RSRP measurements or other measurements) of the first set of beams to obtain a first set of measurements. For example, each beam, from the first set of beams, may be associated with one or more measurements performed by the UE 120. The UE 120 may input the first set of measurements (e.g., L1 RSRP measurement values) into the AI / ML model 310 along with information associated with the first set of beams and / or a second set of beams, such as a beam direction (e.g., spatial direction) , beam width, beam shape, and / or other characteristics of the respective beams from the first set of beams and / or the second set of beams.
[0082] As shown by reference number 320, the AI / ML model 310 may output one or more predictions. The one or more predictions may include predicted measurement values (e.g., predicted L1 RSRP measurement values) associated with the second set of beams. This may reduce a quantity of beam measurements that are performed by the UE 120, thereby conversing power of the UE 120 and / or network resources that would have otherwise been used to measure all beams included in the first set of beams and the second set of beams. This type of prediction may be referred to as a codebook based spatial domain selection or prediction.
[0083] As another example, an output of the AI / ML model 310 may include a point-direction, an angle of departure (AoD) , and / or an angle of arrival (AoA) of a beam included in the second set of beams. This type of prediction may be referred to as a non-codebook based spatial domain selection or prediction. As another example, multiple measurement report or values, collected at different points in time, may be input to the AI / ML model 310. This may enable the AI / ML model 310 to output codebook based and / or non-codebook based predictions for a measurement value, an AoD, and / or an AoA, among other examples, of a beam at a future time. The output (s) of the AI / ML model 310, as described herein, may facilitate initial access procedures, secondary cell group (SCG) setup procedures, beam refinement procedures (e.g., a P2 beam management procedure or a P3 beam management procedure) , link quality or interference adaptation procedure, beam failure and / or beam blockage predictions, and / or radio link failure predictions, among other examples.
[0084] In some examples, the first set of beams may be referred to as Set B beams and the second set of beams may be referred to as Set A beams. In some examples, the first set of beams (e.g., the Set B beams) may be a subset of the second set of beams (e.g., the Set A beams) . In some other examples, the first set of beams and the second set of beams may be different beams and / or may be mutually exclusive sets. For example, the first set of beams (e.g., the Set B beams) may include wide beams (e.g., unrefined beams or beams having a beam width that satisfies a first threshold) and the second set of beams (e.g., the Set A beams) may include narrow beams (e.g., refined beams or beams having a beam width that satisfies a second threshold) . In one example, the AI / ML model 310 may perform spatial-domain beam predictions for beams included in the Set A beams based on measurement results of beams included in the Set B beams. As another example, the AI / ML model 310 may perform temporal beam prediction for beams included in the Set A beams based on historic measurement results of beams included in the Set B beams.
[0085] Generally, the UE 120 occupies CPUs during measurement of the Set B beams as well as during inference during the AI / ML model 310. However, because measurement occasions for the Set B beams may be spaced out in time, the UE 120 may occupy the CPUs at times during which measurements are not being performed. Accordingly, some aspects described herein allow the UE 120 to occupy the CPUs discontinuously (e.g., the CPUs are unoccupied between measurement occasions) . Additionally, or alternatively, some aspects described herein allow the UE 120 to occupy fewer CPUs during measurement and occupy more CPUs during inference (e.g., because inference is generally more computationally intensive than measurement) .
[0086] As indicated above, Fig. 3 is provided as an example. Other examples may differ from what is described with regard to Fig. 3.
[0087] Figs. 4A, 4B, and 4C are diagrams illustrating examples 400, 430, and 460, respectively, associated with scheduling CSI reports, in accordance with the present disclosure. The example 400 of Fig. 4A represents a periodic or semi-persistent CSI report (using periodic or semi-persistent Set B beams, such as CSI-RSs or SSBs, or using zero-power resources, such as CSI interference measurement (CSI-IM) resources) . Accordingly, a network node 110 may provide a configuration for the set B beams (e.g., using one or more RRC messages) and a configuration for the CSI report (e.g., using one or more RRC messages) . In some aspects, the network node 110 may activate the set B beams (e.g., using DCI) and / or activate uplink occasions for the CSI report (e.g., using DCI) .
[0088] As shown in Fig. 4A, a UE 120 may measure set B beams in measurement occasions 405-1 through 405-M (where M represents a total quantity of measurement occasions) that are earlier in time than a CSI reference resource associated with the CSI report. The UE 120 may perform inference using measurements of the set B beams for prediction targets 415-1 through 415-N (where N represents a total quantity of prediction targets) that are later in time than the CSI reference resource. The prediction targets 415-1 through 415-N may include CSI-RSs, SSBs, and / or non-transmitted targets. The UE 120 may transmit the CSI report (including results of the inference) in an uplink occasion 410. As further shown in Fig. 4A, the prediction targets 415-1 through 415-N may be later in time than the uplink occasion 410, and the measurement occasions 405-1 through 405-M may be earlier in time than the uplink occasion 410.
[0089] The example 430 of Fig. 4B represents an aperiodic CSI report (using periodic or semi-persistent Set B beams, such as CSI-RSs or SSBs, or zero-power resources, such as CSI-IM resources) . Accordingly, a network node 110 may provide a configuration for the set B beams (e.g., using one or more RRC messages) and a configuration for the CSI report (e.g., using DCI) . In some aspects, the network node 110 may activate the set B beams (e.g., using DCI) .
[0090] As shown in Fig. 4B, the UE 120 may measure set B beams in measurement occasions 405-1 through 405-M that are earlier in time than a CSI reference resource 440 associated with the CSI report. The UE 120 may perform inference using measurements of the set B beams for prediction targets 415-1 through 415-N that are later in time than the CSI reference resource 440. The prediction targets 415-1 through 415-N may include CSI-RSs, SSBs, and / or non-transmitted targets. The network node 110 may transmit a message 435 that triggers the CSI report. The UE 120 may transmit the CSI report (including results of the inference) in an uplink occasion 410 (e.g., indicated by the message 435) . As further shown in Fig. 4B, the prediction targets 415-1 through 415-N may be later in time than the uplink occasion 410, and the measurement occasions 405-1 through 405-M may be earlier in time than the uplink occasion 410. Additionally, at least one of the measurement occasions (e.g., measurement occasion 415-M) may be later in time than the message 435, while other measurement occasions (e.g., measurement occasion 415-m, where m is less than M) are earlier in time than the message 435.
[0091] The example 460 of Fig. 4C represents an aperiodic CSI report (using aperiodic Set B beams, such as CSI-RSs or SSBs, or zero-power resources, such as CSI-IM resources) . Accordingly, a network node 110 may provide a configuration for the set B beams (e.g., using DCI) and a configuration for the CSI report (e.g., using DCI) .
[0092] As shown in Fig. 4C, the network node 110 may transmit a message 465 that triggers the Set B beams as well as the CSI report. Accordingly, the UE 120 may measure set B beams in measurement occasions 470-1 through 470-M that are earlier in time than a CSI reference resource associated with the CSI report. The UE 120 may perform inference using measurements of the set B beams for prediction targets 415-1 through 415-N that are later in time than the CSI reference resource 440. The prediction targets 415-1 through 415-N may include CSI-RSs, SSBs, and / or non-transmitted targets. The UE 120 may transmit the CSI report (including results of the inference) in an uplink occasion 410 (e.g., indicated by the message 465) . As further shown in Fig. 4C, the prediction targets 415-1 through 415-N may be later in time than the uplink occasion 410, and the measurement occasions 405-1 through 405-M may be earlier in time than the uplink occasion 410. Additionally, the prediction targets 415-1 through 415-N and the measurement occasions 405-1 through 405-M may be later in time than the message 465.
[0093] As indicated above, Figs. 4A-4C are provided as examples. Other examples may differ from what is described with respect to Figs. 4A-4C. For example, the message 465 in Fig. 4C may be a plurality of messages.
[0094] Figs. 5A, 5B, 5C, and 5D are diagrams illustrating examples 500, 530, 560, and 580, respectively, associated with CPU occupation rules, in accordance with the present disclosure. In Figs. 5A-5D, a UE 120 may be scheduled (e.g., by a network node 110) with a CSI report. The CSI report may be for a set of measurement resources (e.g., channel measurement resources (CMRs) and / or interference measurement resources (IMRs) ) that are associated with a set of reference signal resources (e.g., SSB resources, CSI-RS resources, and / or CSI-IM resources) including SB≥1 resources. The CSI report may be associated with a reportQuantity (e.g., as defined in 3GPP specifications) indicating a set of predicted channel characteristics (e.g., identifiers of the top K prediction targets with respect to signal strength and / or probability, predicted signal strengths for the top K prediction targets; probabilities of being a top 1 or top K prediction target; and / or confidence information, among other examples) associated with a set of prediction targets (e.g., SSB resources, CSI-RS resources, and / or non-transmitted targets) . The UE 120 may derive the set of predicted channel characteristics using a set of measurements across a set of measurement occasions including (where 1≤sB≤SB) measurement occasions. The set of measurement occasions are before (e.g., earlier in time than) a CSI reference resource with respect to a CSI reporting instance.
[0095] The example 500 of Fig. 5A represents a CPU occupation rule for the set of measurement occasions. As shown in Fig. 5A, the UE 120 may determine CPU occupation in a period starting from a first symbol of an earliest resource in an earliest measurement occasion across all reference signal resources and all measurement occasions (e.g., across measurement occasions 510a and measurement occasions 510b) before the CSI reference resource 505, until a last symbol of a latest resource in a latest measurement occasion across all reference signal resources and all measurement occasions (e.g., across the measurement occasions 510a and the measurement occasions 510b) before the CSI reference resource 505. As further shown in Fig. 5A, occupation of a set of CPUs (associated with the CSI report) is possible from a first symbol of an earliest resource in a measurement occasion until a last symbol of a latest resource in the same measurement occasion (associated with a same set of reference signal resources) . Additionally, occupation of the set of CPUs is impossible from a symbol, after the last symbol of the latest resource in a measurement occasion, until a symbol before a first symbol of an earliest resource in a subsequent measurement occasion (associated with a same set of reference signals resources) , unless another set of reference signal resources are scheduled during that period. For example, Fig. 5A shows an overlap between the measurement occasions 510a and the measurement occasions 510b during which the UE 120 continues to occupy the set of CPUs.
[0096] In some aspects, the UE 120 may determine to apply the CPU occupation rule described in connection with Fig. 5A using a duty cycle, as described below in connection with Fig. 7A. In some aspects, the CPU occupation rule described in connection with Fig. 5A applies only to periodic or semi-persistent reference signal resources (e.g., as described in connection with Figs. 4A-4B) . Accordingly, for aperiodic reference signal resources (e.g., as described in connection with Fig. 4C) , the UE 120 may occupy the set of CPUs from a symbol, after a last symbol of DCI triggering the aperiodic reference signal resources, until a last symbol of an uplink occasions carrying the CSI report. Alternatively, the CPU occupation rule described in connection with Fig. 5A may further apply to aperiodic reference signal resources (e.g., as described in connection with Fig. 4C) .
[0097] The example 530 of Fig. 5B represents a CPU occupation rule prior to the set of measurement occasions. As shown in Fig. 5B, occupation of the set of CPUs is impossible before a first symbol of an earliest resource in an earliest measurement occasion, across all reference signal resources and all measurement occasions (e.g., across measurement occasions 510a and measurement occasions 510b) before the CSI reference resource 505, unless another set of reference signal resources are scheduled during such period. Therefore, the set of CPUs are unoccupied during period 535 in Fig. 5B.
[0098] The example 560 of Fig. 5C represents a CPU occupation rule after the set of measurement occasions. As shown in Fig. 5C, the set of CPUs are further occupied from a symbol, after a last symbol of a latest resource in a latest measurement occasion across all reference signal resources and all measurement occasions (e.g., across the measurement occasions 510a, not shown in Fig. 5C, and the measurement occasions 510b) before the CSI reference resource 505, until a last symbol of an uplink occasion 565 carrying the CSI report. In some aspects, the CPU occupation rule described in connection with Fig. 5C applies only to periodic or semi-persistent CSI reports (e.g., as described in connection with Fig. 4A) . Alternatively, the CPU occupation rule described in connection with Fig. 5C may further apply to aperiodic CSI reports (e.g., as described in connection with Figs. 4B-4C) .
[0099] The example 580 of Fig. 5D represents a CPU occupation rule after the set of measurement occasions for aperiodic CSI reports (e.g., as described in connection with Figs. 4B-4C) . As shown in Fig. 5D, a last symbol of a latest resource in a latest measurement occasion, across all reference signal resources and all measurement occasions (e.g., across the measurement occasions 510a, not shown in Fig. 5D, and the measurement occasions 510b) before the CSI reference resource 505, may be earlier in time than a first symbol of DCI 590 triggering the CSI report. Accordingly, the set of CPUs may be unoccupied from a buffer symbol (X symbols or slots after the last symbol of the latest resource in the latest measurement occasion) until a last symbol of the DCI 590 triggering the CSI report. Additionally, as shown by reference number 585, the set of CPUs may still be occupied from a symbol, after a last symbol of a latest resource in a latest measurement occasion across all reference signal resources and all measurement occasions (e.g., across the measurement occasions 510a, not shown in Fig. 5D, and the measurement occasions 510b) before the CSI reference resource 505, until the buffer symbol (e.g., the Xth symbol or slot after the last symbol of the latest resource in the latest measurement occasion) . Furthermore, the set of CPUs may be occupied from a symbol, after a last symbol of the DCI 590 triggering the CSI report, until a last symbol of the uplink occasion 565.
[0100] The value of X (e.g., used to determine the buffer symbol) may be preconfigured (e.g., programmed into a memory of the UE 120 and a memory of the network node 110) , reported by the UE 120 (e.g., in a capability report) , and / or indicated by the network node 110. The value of X may be set to zero (e.g., such that the buffer symbol is the same as the last symbol of the latest resource in the latest measurement occasion) .
[0101] By using techniques as described in connection with Figs. 5A-5D, the UE 120 increases time during which the set of CPUs are available for additional measurements and / or reports. As a result, the UE 120 avoids wasting computing resources (e.g., between measurement occasions and / or before DCI triggering a CSI report) .
[0102] As indicated above, Figs. 5A-5D are provided as examples. Other examples may differ from what is described with respect to Figs. 5A-5D.
[0103] Fig. 6 is a diagram illustrating an example 600 associated with set level CPU occupation and resource level CPU occupation, in accordance with the present disclosure. In Fig. 6, similar to Figs. 5A-5D, a UE 120 may be scheduled (e.g., by a network node 110) with a CSI report. The CSI report may be for a set of measurement resources (e.g., CMRs and / or IMRs) that are associated with a set of reference signal resources (e.g., SSB resources, CSI-RS resources, and / or CSI-IM resources) including SB≥1 resources. The CSI report may be associated with a reportQuantity (e.g., as defined in 3GPP specifications) indicating a set of predicted channel characteristics (e.g., identifiers of the top K prediction targets with respect to signal strength and / or probability, predicted signal strengths for the top K prediction targets; probabilities of being a top 1 or top K prediction target; and / or confidence information, among other examples) associated with a set of prediction targets (e.g., SSB resources, CSI-RS resources, and / or non-transmitted targets) . The UE 120 may derive the set of predicted channel characteristics using a set of measurements across a set of measurement occasions including (where 1≤sB≤SB) measurement occasions. The set of measurement occasions are before (e.g., earlier in time than) a CSI reference resource with respect to a CSI reporting instance.
[0104] Fig. 6 depicts a set of measurement occasions (e.g., starting with measurement occasion 605) prior to a CSI reference resource 505. For set level occupation, a set of CPUs associated with the CSI report are occupied from a first symbol of an earliest resource in a measurement occasion (e.g., resource 610a in the measurement occasion 605) until a last symbol of a latest resource in the same measurement occasion (e.g., resource 610d in the measurement occasion 605) associated with a same set of reference signal resources. By using set level occupation, the UE 120 may decrease computational complexity associated with occupation time for the set of CPUs.
[0105] For resource level occupation, the set of CPUs associated with the CSI report are occupied from a first symbol of any resource in any measurement occasion (e.g., resource 610a, resource 610b, resource 610c, or resource 610d) until a last symbol of the same resource, and during remaining durations the set of CPUs are unoccupied. By using resource level occupation, the UE 120 may further increase time during which the set of CPUs are available for additional measurements and / or reports.
[0106] In some aspects, the UE 120 may select between set level occupation and resource level using duty cycle, as described in connection with Fig. 7B.
[0107] As indicated above, Fig. 6 provided as an example. Other examples may differ from what is described with respect to Fig. 6.
[0108] Figs. 7A and 7B are diagrams illustrating examples 700 and 750, respectively, associated with duty cycle calculation, in accordance with the present disclosure. In Figs. 7A-7B, a UE 120 may be scheduled (e.g., by a network node 110) with a CSI report associated with a set of reference signal resources (e.g., SB reference signal resources) , across a set of measurement occasions, for a set of prediction targets.
[0109] In Fig. 7A, represents a duration associated with an sBth set of reference signal resources, starting from a first symbol of an earliest resource in a measurement occasion (e.g., measurement occasion 705) and ending at a last symbol of a latest resource in the same certain measurement occasion (associated with a same set of reference signal resources) . Additionally, represents a duration associated with the sBth set of reference signal resources, starting from a symbol after a last symbol of a latest resource in a measurement occasion (e.g., the measurement occasion 705) , until a symbol before a first symbol of an earliest resource in a subsequent measurement occasion (associated with a same set of reference signal resources) .
[0110] Therefore, the UE 120 may determine a duty cycle value as and / or Accordingly, the UE 120 may determine to apply the CPU occupation rule described in connection with Fig. 5A based at least in part on whether the duty cycle value satisfies a discontinuous threshold. The value of the discontinuous threshold may be preconfigured (e.g., programmed into a memory of the UE 120 and a memory of the network node 110) , reported by the UE 120 (e.g., in a capability report) , and / or indicated by the network node 110.
[0111] In Fig. 7B, represents a duration associated with an sBth set of reference signal resources, starting from a first symbol of an earliest resource in a measurement occasion and ending at a last symbol of a latest resource in the same certain measurement occasion (associated with a same set of reference signal resources) . Additionally, represents a duration (e.g., a minimum, a maximum, or an average, among other examples) associated with the sBth set of reference signal resources, starting from a symbol after a last symbol of a non-latest resource in a measurement occasion and ending at a symbol before a first symbol of a subsequent resource in the same measurement occasion.
[0112] Therefore, the UE 120 may determine a duty cycle value as and / or Accordingly, the UE 120 may determine to apply resource level occupation as described in connection with Fig. 6 based at least in part on whether the duty cycle value satisfies a resource level threshold. The value of the resource level threshold may be preconfigured (e.g., programmed into a memory of the UE 120 and a memory of the network node 110) , reported by the UE 120 (e.g., in a capability report) , and / or indicated by the network node 110.
[0113] As indicated above, Figs. 7A-7B are provided as examples. Other examples may differ from what is described with respect to Figs. 7A-7B.
[0114] Figs. 8A, 8B, and 8C are diagrams illustrating examples 800, 830, and 860, respectively, associated with CPU occupation rules, in accordance with the present disclosure. In Figs. 8A-8C, a UE 120 may be scheduled (e.g., by a network node 110) with a CSI report. The CSI report may be for a set of measurement resources (e.g., CMRs and / or IMRs) that are associated with a set of reference signal resources (e.g., SSB resources, CSI-RS resources, and / or CSI-IM resources) including SB≥1 resources. The CSI report may be associated with a reportQuantity (e.g., as defined in 3GPP specifications) indicating a set of predicted channel characteristics (e.g., identifiers of the top K prediction targets with respect to signal strength and / or probability, predicted signal strengths for the top K prediction targets; probabilities of being a top 1 or top K prediction target; and / or confidence information, among other examples) associated with a set of prediction targets (e.g., SSB resources, CSI-RS resources, and / or non-transmitted targets) . The UE 120 may derive the set of predicted channel characteristics using a set of measurements across a set of measurement occasions including (where 1≤sB≤SB) measurement occasions. The set of measurement occasions are before (e.g., earlier in time than) a CSI reference resource 505 with respect to an uplink occasion 565 carrying the CSI report.
[0115] As shown in Fig. 8A and by reference number 805, from a first symbol of an earliest resource in an earliest measurement occasion, across all sets of reference signal resources and all measurement occasions before the CSI reference resource 505, until a last symbol of a latest resource in a latest measurement occasion, across all sets of reference signal resources and all measurement occasions before the CSI reference resource 505, the UE 120 may occupy a first set of CPUs (e.g., including N1 CPUs) . In some aspects, the UE 120 may occupy the first set of CPUs discontinuously (e.g., as described in connection with Fig. 5A, whether using set level occupation or resource level occupation, as described in connection with Fig. 6) . Additionally, as shown by reference number 810a, from a symbol after the last symbol of the latest resource in the latest measurement occasion, across all sets of reference signal resources and all measurement occasions before the CSI reference resource 505, until a last symbol of the uplink occasion 565, the UE 120 may occupy a second set of CPUs larger than the first set of CPUs (e.g., including N2>N1 CPUs) .
[0116] Alternatively, as shown by reference number 810b, from a symbol after the last symbol of the latest resource in the latest measurement occasion, across all sets of reference signal resources and all measurement occasions before the CSI reference resource 505, until a buffer symbol (e.g., Y symbols or slots after the last symbol of the latest resource in the latest measurement occasion) , the UE 120 may occupy the second set of CPUs larger than the first set of CPUs. Additionally, as shown by reference number 815, from the buffer symbol until a last symbol of the uplink occasion 565, the UE 120 may occupy the first set of CPUs. The value of Y (e.g., used to determine the buffer symbol) may be preconfigured (e.g., programmed into a memory of the UE 120 and a memory of the network node 110) , reported by the UE 120 (e.g., in a capability report) , and / or indicated by the network node 110.
[0117] In some aspects, the CPU occupation rule described in connection with Fig. 8A applies only to periodic or semi-persistent CSI reports (e.g., as described in connection with Fig. 4A) . Accordingly, for aperiodic CSI reports (e.g., as described in connection with Figs. 4B-4C) , the UE 120 may apply the CPU occupation rule described below in connection with Fig. 8B or Fig. 8C. Alternatively, the CPU occupation rule described in connection with Fig. 8A may further apply to aperiodic CSI reports (e.g., as described in connection with Figs. 4B-4C) .
[0118] As shown in Fig. 8B, no CPUs are occupied from a symbol after the last symbol of the latest resource in the latest measurement occasion, across all sets of reference signal resources and all measurement occasions before the CSI reference resource 505, until a last symbol of DCI 590 triggering the CSI report. Additionally, as shown by reference number 835a, from a symbol after the last symbol of the DCI 590, until a last symbol of the uplink occasion 565 carrying the CSI report, the UE 120 may occupy the second set of CPUs larger than the first set of CPUs (e.g., including N2>N1 CPUs) .
[0119] Alternatively, as shown by reference number 835b, from a symbol after the last symbol of the DCI 590, until a buffer symbol (e.g., Y symbols or slots after the last symbol of the latest resource in the latest measurement occasion) , the UE 120 may occupy the second set of CPUs larger than the first set of CPUs. Additionally, as shown by reference number 840, from the buffer symbol until a last symbol of the uplink occasion 565, the UE 120 may occupy the first set of CPUs. The value of Y (e.g., used to determine the buffer symbol) may be preconfigured (e.g., programmed into a memory of the UE 120 and a memory of the network node 110) , reported by the UE 120 (e.g., in a capability report) , and / or indicated by the network node 110.
[0120] In some aspects, the UE 120 may further occupy CPUs after the set of measurement occasions and before the DCI 590. For example, as shown in Fig. 8C and by reference number 865, the first set of CPUs are occupied starting from a symbol after a last symbol of a latest resource in a latest measurement occasion, across all sets of reference signal resources and all measurement occasions before the CSI reference resource 505, until a last symbol of the DCI 590 triggering the CSI report. For example, the UE 120 may additionally occupy the first set of CPUs, as described in connection with Fig. 8C, when not applying discontinuous CPU occupation to the set of measurement occasions.
[0121] In some aspects, the first set of CPUs and the second set of CPUs are associated with a same total amount of CPUs available at the UE 120. For example, the UE 120 may report (e.g., in a capability message) a single total number of CPUs, from which N1 is subtracted and from which N2 is subtracted during respective occupations described in connection with Figs. 8A-8C. The single total number of CPUs may be reported on a per-cell (and / or per-component carrier (CC) ) basis or across all cells (and / or CCs) .
[0122] Alternatively, the first set of CPUs may be associated with a first total amount of CPUs available at the UE 120, and the second set of CPUs may be associated with a second total amount of CPUs available at the UE 120. For example, when N1 CPUs are occupied, the UE 120 may deduct N1 CPUs from a first total number of CPUs. Additionally, when N2 CPUs are occupied, the UE 120 may deduct N1 CPUs from a first total number of CPUs and may deduct N2-N1 CPUs from a second total number of CPUs. CPUs associated with the second total may be referred to as “AI / ML processing units” or “beam prediction processing units. ” Each of the first total number of CPUs and the second total number of CPUs may be reported on a per-cell (and / or per-CC) basis or across all cells (and / or CCs) .
[0123] By using techniques as described in connection with Figs. 8A-8C, the UE 120 may increase CPUs that are available during measurement, which is less computationally intense than inference. As a result, the UE 120 avoids wasting computing resources (e.g., during measurement) .
[0124] As indicated above, Figs. 8A-8C are provided as examples. Other examples may differ from what is described with respect to Figs. 8A-8C.
[0125] In any aspects described herein, an observation window length may be transparent to the network node 110. For example, an earliest measurement occasion (and thus a total quantity of measurement occasions (where 1≤sB≤SB) ) may be selected by the UE 120. For example, the UE 120 may measure from as early as a first resource across all sets of reference signal resources whenever configured (and / or activated) . Therefore, flexibility is increased for the UE 120 to use more measurements to increase accuracy or fewer measurements to reduce memory and computational overhead.
[0126] Alternatively, an observation window length may be non-transparent to the network node 110. For example, an earliest measurement occasion (and thus a total quantity of measurement occasions (where 1≤sB≤SB) ) may be determined according to a preconfiguration (e.g., programmed into the UE 120 and the network node 110 based on 3GPP specifications and / or another standard) and / or indicated by the network node 110 (e.g., in a configuration for the set of reference signal resources or a configuration for the CSI report, among other examples) . Therefore, the network node 110 is aware of how many measurements are used during inference at the UE 120 and may estimate accuracy of predicated channel characteristics reported by the UE 120.
[0127] Fig. 9 is a diagram illustrating an example process 900 performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure. Example process 900 is an example where the apparatus or the UE (e.g., UE 120) performs operations associated with discontinuous CPU occupation.
[0128] As shown in Fig. 9, in some aspects, process 900 may include receiving a configuration for a set of reference signal resources (block 910) . For example, the UE (e.g., using reception component 1202 and / or communication manager 1206, depicted in Fig. 12) may receive a configuration for a set of reference signal resources, as described herein.
[0129] As further shown in Fig. 9, in some aspects, process 900 may include receiving a configuration for a CSI report associated with a set of prediction targets that are later in time than a CSI reference resource (block 920) . For example, the UE (e.g., using reception component 1202 and / or communication manager 1206) may receive a configuration for a CSI report associated with a set of prediction targets that are later in time than a CSI reference resource, as described herein.
[0130] As further shown in Fig. 9, in some aspects, process 900 may include performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, where a set of CPUs are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions (block 930) . For example, the UE (e.g., using reception component 1202 and / or communication manager 1206) may perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, where a set of CPUs at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions, as described herein.
[0131] As further shown in Fig. 9, in some aspects, process 900 may include transmitting the CSI report based at least in part on the set of measurements (block 940) . For example, the UE (e.g., using transmission component 1204 and / or communication manager 1206, depicted in Fig. 12) may transmit the CSI report based at least in part on the set of measurements, as described herein.
[0132] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.
[0133] In a first aspect, the set of reference signal resources includes an SSB, a CSI-RS, a CSI-IM resource, or a combination thereof.
[0134] In a second aspect, alone or in combination with the first aspect, the set of prediction targets includes an SSB or a CSI-RS.
[0135] In a third aspect, alone or in combination with one or more of the first and second aspects, the set of prediction targets includes non-transmitted targets.
[0136] In a fourth aspect, alone or in combination with one or more of the first through third aspects, process 900 includes performing inference (e.g., using communication manager 1206) using the set of measurements to determine a set of predicted channel characteristics for the CSI report.
[0137] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the set of predicted channel characteristics includes a set of top prediction targets in signal strength, a set of signal strength measurements for the set of prediction targets, a set of probabilities associated with the set of prediction targets, a set of confidence information associated with the set of prediction targets, or a combination thereof.
[0138] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the set of CPUs are unoccupied prior to an earliest resource of an earliest measurement occasion in the set of measurement occasions.
[0139] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the one or more reference signal resources are periodic or semi-persistent resources.
[0140] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the one or more reference signal resources are aperiodic resources.
[0141] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, process 900 includes receiving (e.g., using reception component 1202 and / or communication manager 1206) an additional configuration for a set of aperiodic reference signal resources; receiving (e.g., using reception component 1202 and / or communication manager 1206) an additional configuration for an additional CSI report associated with a set of additional prediction targets that are later in time than an additional CSI reference resource; performing (e.g., using reception component 1202 and / or communication manager 1206) an additional set of measurements, on the set of aperiodic reference signal resources, across a set of additional measurement occasions earlier in time than the additional CSI reference resource, where an additional set of CPUs at the UE are occupied from a last symbol of the additional configuration triggering the additional CSI report until a last symbol of a message carrying the CSI report; and transmitting (e.g., using transmission component 1204 and / or communication manager 1206) the CSI report based at least in part on the additional set of measurements.
[0142] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the set of CPUs are occupied across all reference signal resources within each measurement occasion.
[0143] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the set of CPUs are occupied from an initial symbol of each reference signal resource within each measurement occasion until a final symbol of the reference signal resource within the measurement occasion, and the set of CPUs are unoccupied between any reference signal resources within each measurement occasion.
[0144] In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, the set of CPUs are unoccupied between any reference signal resources within each measurement occasion based at least in part on a length of each reference signal resource, a length between reference signal resources, or a combination thereof.
[0145] In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, the set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a last symbol of a message carrying the CSI report.
[0146] In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, the set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a buffer symbol, and the set of CPUs at the UE are occupied from a last symbol of the configuration triggering the CSI report until a last symbol of a message carrying the CSI report.
[0147] In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, the set of CPUs are unoccupied from the buffer symbol until the last symbol of the configuration triggering the CSI report.
[0148] In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions based at least in part on a length of each measurement occasion, a length between measurement occasions, or a combination thereof.
[0149] In a seventeenth aspect, alone or in combination with one or more of the first through sixteenth aspects, an additional set of CPUs, larger than the set of CPUs, are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a last symbol of a message carrying the CSI report.
[0150] In an eighteenth aspect, alone or in combination with one or more of the first through seventeenth aspects, an additional set of CPUs, larger than the set of CPUs, are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a buffer symbol, and the set of CPUs are occupied from the buffer symbol until a last symbol of a message carrying the CSI report.
[0151] In a nineteenth aspect, alone or in combination with one or more of the first through eighteenth aspects, an additional set of CPUs, larger than the set of CPUs, are occupied from a last symbol of the configuration triggering the CSI report until a last symbol of a message carrying the CSI report.
[0152] In a twentieth aspect, alone or in combination with one or more of the first through nineteenth aspects, an additional set of CPUs, larger than the set of CPUs, are occupied from a last symbol of the configuration triggering the CSI report until a buffer symbol, and the set of CPUs are occupied from the buffer symbol until a last symbol of a message carrying the CSI report.
[0153] Although Fig. 9 shows example blocks of process 900, in some aspects, process 900 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 9. Additionally, or alternatively, two or more of the blocks of process 900 may be performed in parallel.
[0154] Fig. 10 is a diagram illustrating an example process 1000 performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure. Example process 1000 is an example where the apparatus or the UE (e.g., UE 120) performs operations associated with different measurement and inference CPU occupation.
[0155] As shown in Fig. 10, in some aspects, process 1000 may include receiving a configuration for a set of reference signal resources (block 1010) . For example, the UE (e.g., using reception component 1202 and / or communication manager 1206, depicted in Fig. 12) may receive a configuration for a set of reference signal resources, as described herein.
[0156] As further shown in Fig. 10, in some aspects, process 1000 may include receiving a configuration for a CSI report associated with a set of prediction targets that are later in time than a CSI reference resource (block 1020) . For example, the UE (e.g., using reception component 1202 and / or communication manager 1206) may receive a configuration for a CSI report associated with a set of prediction targets that are later in time than a CSI reference resource, as described herein.
[0157] As further shown in Fig. 10, in some aspects, process 1000 may include performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, where a first set of CPUs are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and a second set of CPUs, larger than the first set of CPUs, are occupied at least during inference (block 1030) . For example, the UE (e.g., using reception component 1202 and / or communication manager 1206) may perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, where a first set of CPUs at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and a second set of CPUs, larger than the first set of CPUs, are occupied at least during inference, as described herein.
[0158] As further shown in Fig. 10, in some aspects, process 1000 may include transmitting the CSI report based at least in part on the set of measurements (block 1040) . For example, the UE (e.g., using transmission component 1204 and / or communication manager 1206, depicted in Fig. 12) may transmit the CSI report based at least in part on the set of measurements, as described herein.
[0159] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.
[0160] In a first aspect, the set of reference signal resources includes an SSB, a CSI-RS, a CSI-IM resource, or a combination thereof.
[0161] In a second aspect, alone or in combination with the first aspect, the set of prediction targets includes an SSB or a CSI-RS.
[0162] In a third aspect, alone or in combination with one or more of the first and second aspects, the set of prediction targets includes non-transmitted targets.
[0163] In a fourth aspect, alone or in combination with one or more of the first through third aspects, process 1000 includes performing the inference (e.g., using the communication manager 1206) using the set of measurements to determine a set of predicted channel characteristics for the CSI report.
[0164] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the set of predicted channel characteristics includes a set of top prediction targets in signal strength, a set of signal strength measurements for the set of prediction targets, a set of probabilities associated with the set of prediction targets, a set of confidence information associated with the set of prediction targets, or a combination thereof.
[0165] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the second set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a last symbol of a message carrying the CSI report.
[0166] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the second set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a buffer symbol, and the first set of CPUs are occupied from the buffer symbol until a last symbol of a message carrying the CSI report.
[0167] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the second set of CPUs are occupied from a last symbol of the configuration triggering the CSI report until a last symbol of a message carrying the CSI report.
[0168] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the second set of CPUs are occupied from a last symbol of the configuration triggering the CSI report until a buffer symbol, and the first set of CPUs are occupied from the buffer symbol until a last symbol of a message carrying the CSI report.
[0169] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the first set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a last symbol of the configuration triggering the CSI report.
[0170] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the first set of CPUs and the second set of CPUs are associated with a same total capability for the UE.
[0171] In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, the first set of CPUs are associated with a first total capability for the UE, and the second set of CPUs are associated with a second total capability for the UE.
[0172] In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, process 1000 includes selecting (e.g., using communication manager 1206) an initial measurement occasion in the set of measurement occasions based at least in part on the configuration for the set of reference signal resources.
[0173] In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, process 1000 includes receiving (e.g., using reception component 1202 and / or communication manager 1206) an indication of an initial measurement occasion in the set of measurement occasions.
[0174] Although Fig. 10 shows example blocks of process 1000, in some aspects, process 1000 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 10. Additionally, or alternatively, two or more of the blocks of process 1000 may be performed in parallel.
[0175] Fig. 11 is a diagram illustrating an example process 1100 performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure. Example process 1100 is an example where the apparatus or the UE (e.g., UE 120) performs operations associated with initial measurement occasion determination.
[0176] As shown in Fig. 11, in some aspects, process 1100 may include receiving a configuration for a set of reference signal resources (block 1110) . For example, the UE (e.g., using reception component 1202 and / or communication manager 1206, depicted in Fig. 12) may receive a configuration for a set of reference signal resources, as described herein.
[0177] As further shown in Fig. 11, in some aspects, process 1100 may include receiving a configuration for a CSI report associated with a set of prediction targets that are later in time than a CSI reference resource (block 1120) . For example, the UE (e.g., using reception component 1202 and / or communication manager 1206) may receive a configuration for a CSI report associated with a set of prediction targets that are later in time than a CSI reference resource, as described herein.
[0178] As further shown in Fig. 11, in some aspects, process 1100 may include performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, where an initial measurement occasion in the set of measurement occasions is selected by a UE, indicated by a preconfiguration, or indicated by a network (block 1130) . For example, the UE (e.g., using reception component 1202 and / or communication manager 1206) may perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, where an initial measurement occasion in the set of measurement occasions is selected by the UE, indicated by a preconfiguration, or indicated by a network, as described herein.
[0179] As further shown in Fig. 11, in some aspects, process 1100 may include transmitting the CSI report based at least in part on the set of measurements (block 1140) . For example, the UE (e.g., using transmission component 1204 and / or communication manager 1206, depicted in Fig. 12) may transmit the CSI report based at least in part on the set of measurements, as described herein.
[0180] Process 1100 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.
[0181] In a first aspect, process 1100 includes selecting the initial measurement occasion in the set of measurement occasions based at least in part on the configuration for the set of reference signal resources.
[0182] In a second aspect, alone or in combination with the first aspect, the preconfiguration is stored in a memory of the UE.
[0183] In a third aspect, alone or in combination with one or more of the first and second aspects, process 1100 includes receiving (e.g., using reception component 1202 and / or communication manager 1206) an indication of the initial measurement occasion in the set of measurement occasions from the network.
[0184] Although Fig. 11 shows example blocks of process 1100, in some aspects, process 1100 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 11. Additionally, or alternatively, two or more of the blocks of process 1100 may be performed in parallel.
[0185] Fig. 12 is a diagram of an example apparatus 1200 for wireless communication, in accordance with the present disclosure. The apparatus 1200 may be a UE, or a UE may include the apparatus 1200. In some aspects, the apparatus 1200 includes a reception component 1202, a transmission component 1204, and / or a communication manager 1206, which may be in communication with one another (for example, via one or more buses and / or one or more other components) . In some aspects, the communication manager 1206 is the communication manager 150 described in connection with Fig. 1. As shown, the apparatus 1200 may communicate with another apparatus 1208, such as a UE or a network node (such as a CU, a DU, an RU, or a base station) , using the reception component 1202 and the transmission component 1204. The communication manager 1206 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.
[0186] In some aspects, the apparatus 1200 may be configured to perform one or more operations described herein in connection with Figs. 4A-4C, 5A-5D, 6, 7A-7B, and / or 8A-8C. Additionally, or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein, such as process 900 of Fig. 9, process 1000 of Fig. 10, process 1100 of Fig. 11, or a combination thereof. In some aspects, the apparatus 1200 and / or one or more components shown in Fig. 12 may include one or more components of the UE described in connection with Fig. 1. Additionally, or alternatively, one or more components shown in Fig. 12 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.
[0187] The reception component 1202 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1208. The reception component 1202 may provide received communications to one or more other components of the apparatus 1200. In some aspects, the reception component 1202 may perform signal processing on the received communications, and may provide the processed signals to the one or more other components of the apparatus 1200. In some aspects, the reception component 1202 may include one or more components of the UE 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.
[0188] The transmission component 1204 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1208. In some aspects, one or more other components of the apparatus 1200 may generate communications and may provide the generated communications to the transmission component 1204 for transmission to the apparatus 1208. In some aspects, the transmission component 1204 may perform signal processing on the generated communications, and may transmit the processed signals to the apparatus 1208. In some aspects, the transmission component 1204 may include one or more components of the UE 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 described in connection with Fig. 1. In some aspects, the transmission component 1204 may be co-located with the reception component 1202.
[0189] The communication manager 1206 may support operations of the reception component 1202 and / or the transmission component 1204. For example, the communication manager 1206 may receive information associated with configuring reception of communications by the reception component 1202 and / or transmission of communications by the transmission component 1204. Additionally, or alternatively, the communication manager 1206 may generate and / or provide control information to the reception component 1202 and / or the transmission component 1204 to control reception and / or transmission of communications.
[0190] In some aspects, the reception component 1202 may receive (e.g., from the apparatus 1208) a configuration for a set of reference signal resources. Additionally, the reception component 1202 may receive (e.g., from the apparatus 1208) a configuration for a CSI report associated with a set of prediction targets, where the set of prediction targets are later in time than a CSI reference resource.
[0191] In one example, the reception component 1202 and / or the communication manager 1206 may perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, where a set of CPUs at the apparatus 1200 are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions. Additionally, in some aspects, the reception component 1202 may receive (e.g., from the apparatus 1208) an additional configuration for a set of aperiodic reference signal resources and an additional configuration for an additional CSI report associated with a set of additional prediction targets, where the set of additional prediction targets are later in time than an additional CSI reference resource. Accordingly, the reception component 1202 and / or the communication manager 1206 may perform an additional set of measurements, on the set of aperiodic reference signal resources, across a set of additional measurement occasions earlier in time than the additional CSI reference resource, where an additional set of CPUs at the apparatus 1200 are occupied from a last symbol of the additional configuration triggering the additional CSI report until a last symbol of a message carrying the CSI report. The transmission component 1204 may transmit (e.g., to the apparatus 1208) the CSI report based at least in part on the additional set of measurements.
[0192] Additionally, or alternatively, the reception component 1202 and / or the communication manager 1206 may perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, where a first set of CPUs at the apparatus 1200 are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and a second set of CPUs, larger than the first set of CPUs, are occupied at least during inference.
[0193] Additionally, or alternatively, the reception component 1202 and / or the communication manager 1206 may perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein an initial measurement occasion in the set of measurement occasions is selected by the apparatus 1200, indicated by a preconfiguration, or indicated by a network. In some aspects, the communication manager 1206 may select the initial measurement occasion in the set of measurement occasions based at least in part on the configuration for the set of reference signal resources. Alternatively, the reception component 1202 may receive (e.g., from the apparatus 1208) an indication of the initial measurement occasion in the set of measurement occasions from the network.
[0194] In any aspects described above, the transmission component 1204 may transmit (e.g., to the apparatus 1208) the CSI report based at least in part on the set of measurements. For example, the communication manager 1206 may perform inference using the set of measurements to determine a set of predicted channel characteristics for the CSI report.
[0195] The number and arrangement of components shown in Fig. 12 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. 12. Furthermore, two or more components shown in Fig. 12 may be implemented within a single component, or a single component shown in Fig. 12 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 12 may perform one or more functions described as being performed by another set of components shown in Fig. 12.
[0196] Fig. 13 is a diagram of an example apparatus 1300 for wireless communication, in accordance with the present disclosure. The apparatus 1300 may be a network node, or a network node may include the apparatus 1300. In some aspects, the apparatus 1300 includes a reception component 1302, a transmission component 1304, and / or a communication manager 1306, which may be in communication with one another (for example, via one or more buses and / or one or more other components) . In some aspects, the communication manager 1306 is the communication manager 155 described in connection with Fig. 1. As shown, the apparatus 1300 may communicate with another apparatus 1308, such as a UE or a network node (such as a CU, a DU, an RU, or a base station) , using the reception component 1302 and the transmission component 1304. The communication manager 1306 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.
[0197] In some aspects, the apparatus 1300 may be configured to perform one or more operations described herein in connection with Figs. 4A-4C, 5A-5D, 6, 7A-7B, and / or 8A-8C. Additionally, or alternatively, the apparatus 1300 may be configured to perform one or more processes described herein, or a combination thereof. In some aspects, the apparatus 1300 and / or one or more components shown in Fig. 13 may include one or more components of the network node described in connection with Fig. 1. Additionally, or alternatively, one or more components shown in Fig. 13 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.
[0198] The reception component 1302 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1308. The reception component 1302 may provide received communications to one or more other components of the apparatus 1300. In some aspects, the reception component 1302 may perform signal processing on the received communications, and may provide the processed signals to the one or more other components of the apparatus 1300. In some aspects, the reception component 1302 may include one or more components of the network node 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. In some aspects, the reception component 1302 and / or the transmission component 1304 may include or may be included in a network interface. The network interface may be configured to obtain and / or output signals for the apparatus 1300 via one or more communications links, such as a backhaul link, a midhaul link, and / or a fronthaul link.
[0199] The transmission component 1304 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1308. In some aspects, one or more other components of the apparatus 1300 may generate communications and may provide the generated communications to the transmission component 1304 for transmission to the apparatus 1308. In some aspects, the transmission component 1304 may perform signal processing on the generated communications, and may transmit the processed signals to the apparatus 1308. In some aspects, the transmission component 1304 may include one or more components of the network node 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 described in connection with Fig. 1. In some aspects, the transmission component 1304 may be co-located with the reception component 1302.
[0200] The communication manager 1306 may support operations of the reception component 1302 and / or the transmission component 1304. For example, the communication manager 1306 may receive information associated with configuring reception of communications by the reception component 1302 and / or transmission of communications by the transmission component 1304. Additionally, or alternatively, the communication manager 1306 may generate and / or provide control information to the reception component 1302 and / or the transmission component 1304 to control reception and / or transmission of communications.
[0201] In some aspects, the transmission component 1304 may transmit (e.g., to the apparatus 1308) a configuration for a set of reference signal resources. Additionally, the transmission component 1304 may transmit (e.g., to the apparatus 1208) a configuration for a CSI report associated with a set of prediction targets, where the set of prediction targets are later in time than a CSI reference resource.
[0202] The configuration may be based at least in part on a set of CPUs occupied at the apparatus 1308. For example, the set of CPUs occupied at the apparatus 1308 may be discontinuous with the set of reference signal resources (e.g., as described herein) and / or may include different amounts of CPUs for measurement as compared with inference (e.g., as described herein) . Additionally, or alternatively, an initial measurement occasion for the CSI report may be indicated by a preconfiguration or indicated by the apparatus 1300 (e.g., to the apparatus 1308) .
[0203] In any aspects described above, the reception component 1302 may receive (e.g., from the apparatus 1308) the CSI report for the set of prediction targets.
[0204] The number and arrangement of components shown in Fig. 13 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. 13. Furthermore, two or more components shown in Fig. 13 may be implemented within a single component, or a single component shown in Fig. 13 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 13 may perform one or more functions described as being performed by another set of components shown in Fig. 13.
[0205] The following provides an overview of some Aspects of the present disclosure:
[0206] Aspect 1: A method of wireless communication performed by a user equipment (UE) , comprising: receiving a configuration for a set of reference signal resources; receiving a configuration for a channel state information (CSI) report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource; performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a set of CSI processing units (CPUs) at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions; and transmitting the CSI report based at least in part on the set of measurements.
[0207] Aspect 2: The method of Aspect 1, wherein the set of reference signal resources comprises a synchronization signal block (SSB) , a CSI reference signal (CSI-RS), a CSI interference measurement (CSI-IM) resource, or a combination thereof.
[0208] Aspect 3: The method of any of Aspects 1-2, wherein the set of prediction targets comprises a synchronization signal block (SSB) or a CSI reference signal (CSI-RS) .
[0209] Aspect 4: The method of any of Aspects 1-2, wherein the set of prediction targets comprises non-transmitted targets.
[0210] Aspect 5: The method of any of Aspects 1-4, further comprising: performing inference using the set of measurements to determine a set of predicted channel characteristics for the CSI report.
[0211] Aspect 6: The method of Aspect 5, wherein the set of predicted channel characteristics comprises a set of top prediction targets in signal strength, a set of signal strength measurements for the set of prediction targets, a set of probabilities associated with the set of prediction targets, a set of confidence information associated with the set of prediction targets, or a combination thereof.
[0212] Aspect 7: The method of any of Aspects 1-6, wherein the set of CPUs are unoccupied prior to an earliest resource of an earliest measurement occasion in the set of measurement occasions.
[0213] Aspect 8: The method of any of Aspects 1-7, wherein the one or more reference signal resources are periodic or semi-persistent resources.
[0214] Aspect 9: The method of any of Aspects 1-8, wherein the one or more reference signal resources are aperiodic resources.
[0215] Aspect 10: The method of any of Aspects 1-9, further comprising receiving an additional configuration for a set of aperiodic reference signal resources; receiving an additional configuration for an additional CSI report associated with a set of additional prediction targets, wherein the set of additional prediction targets are later in time than an additional CSI reference resource; performing an additional set of measurements, on the set of aperiodic reference signal resources, across a set of additional measurement occasions earlier in time than the additional CSI reference resource, wherein an additional set of CPUs at the UE are occupied from a last symbol of the additional configuration triggering the additional CSI report until a last symbol of a message carrying the CSI report; and transmitting the CSI report based at least in part on the additional set of measurements.
[0216] Aspect 11: The method of any of Aspects 1-10, wherein the set of CPUs are occupied across all reference signal resources within each measurement occasion.
[0217] Aspect 12: The method of any of Aspects 1-10, wherein the set of CPUs are occupied from an initial symbol of each reference signal resource within each measurement occasion until a final symbol of the reference signal resource within the measurement occasion, and the set of CPUs are unoccupied between any reference signal resources within each measurement occasion.
[0218] Aspect 13: The method of Aspect 12, wherein the set of CPUs are unoccupied between any reference signal resources within each measurement occasion based at least in part on a length of each reference signal resource, a length between reference signal resources, or a combination thereof.
[0219] Aspect 14: The method of any of Aspects 1-13, wherein the set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a last symbol of a message carrying the CSI report.
[0220] Aspect 15: The method of any of Aspects 1-13, wherein the set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a buffer symbol, and the set of CPUs at the UE are occupied from a last symbol of the configuration triggering the CSI report until a last symbol of a message carrying the CSI report.
[0221] Aspect 16: The method of Aspect 15, wherein the set of CPUs are unoccupied from the buffer symbol until the last symbol of the configuration triggering the CSI report.
[0222] Aspect 17: The method of any of Aspects 1-16, wherein the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions based at least in part on a length of each measurement occasion, a length between measurement occasions, or a combination thereof.
[0223] Aspect 18: The method of any of Aspects 1-17, wherein an additional set of CPUs, larger than the set of CPUs, are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a last symbol of a message carrying the CSI report.
[0224] Aspect 19: The method of any of Aspects 1-17, wherein an additional set of CPUs, larger than the set of CPUs, are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a buffer symbol, and the set of CPUs are occupied from the buffer symbol until a last symbol of a message carrying the CSI report.
[0225] Aspect 20: The method of any of Aspects 1-17, wherein an additional set of CPUs, larger than the set of CPUs, are occupied from a last symbol of the configuration triggering the CSI report until a last symbol of a message carrying the CSI report.
[0226] Aspect 21: The method of any of Aspects 1-17, wherein an additional set of CPUs, larger than the set of CPUs, are occupied from a last symbol of the configuration triggering the CSI report until a buffer symbol, and the set of CPUs are occupied from the buffer symbol until a last symbol of a message carrying the CSI report.
[0227] Aspect 22: A method of wireless communication performed by a user equipment (UE) , comprising: receiving a configuration for a set of reference signal resources; receiving a configuration for a channel state information (CSI) report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource; performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a first set of CSI processing units (CPUs) at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and a second set of CPUs, larger than the first set of CPUs, are occupied at least during inference; and transmitting the CSI report based at least in part on the set of measurements.
[0228] Aspect 23: The method of Aspect 22, wherein the set of reference signal resources comprises a synchronization signal block (SSB) , a CSI reference signal (CSI-RS), a CSI interference measurement (CSI-IM) resource, or a combination thereof.
[0229] Aspect 24: The method of any of Aspects 22-23, wherein the set of prediction targets comprises a synchronization signal block (SSB) or a CSI reference signal (CSI-RS) .
[0230] Aspect 25: The method of any of Aspects 22-23, wherein the set of prediction targets comprises non-transmitted targets.
[0231] Aspect 26: The method of any of Aspects 22-25, further comprising: performing the inference using the set of measurements to determine a set of predicted channel characteristics for the CSI report.
[0232] Aspect 27: The method of Aspect 26, wherein the set of predicted channel characteristics comprises a set of top prediction targets in signal strength, a set of signal strength measurements for the set of prediction targets, a set of probabilities associated with the set of prediction targets, a set of confidence information associated with the set of prediction targets, or a combination thereof.
[0233] Aspect 28: The method of any of Aspects 22-27, wherein the second set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a last symbol of a message carrying the CSI report.
[0234] Aspect 29: The method of any of Aspects 22-27, wherein the second set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a buffer symbol, and the first set of CPUs are occupied from the buffer symbol until a last symbol of a message carrying the CSI report.
[0235] Aspect 30: The method of any of Aspects 22-27, wherein the second set of CPUs are occupied from a last symbol of the configuration triggering the CSI report until a last symbol of a message carrying the CSI report.
[0236] Aspect 31: The method of any of Aspects 22-27, wherein the second set of CPUs are occupied from a last symbol of the configuration triggering the CSI report until a buffer symbol, and the first set of CPUs are occupied from the buffer symbol until a last symbol of a message carrying the CSI report.
[0237] Aspect 32: The method of any of Aspects 22-31, wherein the first set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a last symbol of the configuration triggering the CSI report.
[0238] Aspect 33: The method of any of Aspects 22-32, wherein the first set of CPUs and the second set of CPUs are associated with a same total capability for the UE.
[0239] Aspect 34: The method of any of Aspects 22-32, wherein the first set of CPUs are associated with a first total capability for the UE, and the second set of CPUs are associated with a second total capability for the UE.
[0240] Aspect 35: The method of any of Aspects 22-34, further comprising: selecting an initial measurement occasion in the set of measurement occasions based at least in part on the configuration for the set of reference signal resources.
[0241] Aspect 36: The method of any of Aspects 22-34, further comprising: receiving an indication of an initial measurement occasion in the set of measurement occasions.
[0242] Aspect 37: A method of wireless communication performed by a user equipment (UE) , comprising: receiving a configuration for a set of reference signal resources; receiving a configuration for a channel state information (CSI) report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource; performing a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein an initial measurement occasion in the set of measurement occasions is selected by the UE, indicated by a preconfiguration, or indicated by a network; and transmitting the CSI report based at least in part on the set of measurements.
[0243] Aspect 38: The method of Aspect 37, further comprising: selecting the initial measurement occasion in the set of measurement occasions based at least in part on the configuration for the set of reference signal resources.
[0244] Aspect 39: The method of Aspect 37, wherein the preconfiguration is stored in a memory of the UE.
[0245] Aspect 40: The method of Aspect 37, further comprising: receiving an indication of the initial measurement occasion in the set of measurement occasions from the network.
[0246] Aspect 41: 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 1-40.
[0247] Aspect 42: 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 1-40.
[0248] Aspect 43: An apparatus for wireless communication, the apparatus comprising at least one means for performing the method of one or more of Aspects 1-40.
[0249] Aspect 44: 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 1-40.
[0250] Aspect 45: 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 1-40.
[0251] Aspect 46: 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 1-40.
[0252] Aspect 47: 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 1-40.
[0253] The foregoing disclosure provides illustration and description but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects. No element, act, or instruction described herein should be construed as critical or essential unless explicitly described as such.
[0254] 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. The actual specialized control hardware or software used to implement these systems or methods is not limiting of the aspects. Thus, the operation and behavior of the systems or methods are described herein without reference to specific software code, because those skilled in the art will understand that software and hardware can be designed to implement the systems or methods based, at least in part, on the description herein. 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.
[0255] 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. ” Further, as used herein, the article “the” is intended to include one or more items referenced in connection with the article “the” and may be used interchangeably with “the one or more. ” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and may be used interchangeably with “one or more. ” Where only one item is intended, the phrase “only one” or “asingle one” or similar language is used. 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 may also have B) . Also, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and / or, ” unless explicitly stated otherwise (for example, if used in combination with “either” or “only one of” ) . As used herein, a phrase referring to “at least one 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, as well as any combination with multiples of the same element (for example, a + a, a + a + a, a + a + b, a + a + c, a + b + b, a + c + c, b + b, b + b + b, b + b + c, c + c, and c + c + c, or any other ordering of a, b, and c) .
[0256] As used herein, the term “determine” or “determining” encompasses a wide variety of actions and, therefore, “determining” can include calculating, computing, processing, deriving, estimating, investigating, looking up (such as via looking up in a table, a database, or another data structure) , searching, inferring, ascertaining, and / or measuring, among other possibilities. Also, “determining” can include receiving (such as receiving information) , accessing (such as accessing data stored in memory) or transmitting (such as transmitting information) , among other possibilities. Additionally, “determining” can include resolving, selecting, obtaining, choosing, establishing, and / or other such similar actions.
[0257] As used herein, the phrase “based on” is intended to mean “based at least in part on” or “based on or otherwise in association with” unless explicitly stated otherwise. 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.
[0258] 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.An apparatus for wireless communication at a user equipment (UE) , comprising:one or more memories; andone or more processors, coupled to the one or more memories, individually or collectively configured to cause the UE to:receive a configuration for a set of reference signal resources;receive a configuration for a channel state information (CSI) report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource;perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a set of CSI processing units (CPUs) at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions; andtransmit the CSI report based at least in part on the set of measurements.2.The apparatus of claim 1, wherein the set of reference signal resources comprises a synchronization signal block (SSB) , a CSI reference signal (CSI-RS) , a CSI interference measurement (CSI-IM) resource, or a combination thereof.3.The apparatus of claim 1, wherein the set of prediction targets comprises a synchronization signal block (SSB) or a CSI reference signal (CSI-RS) .4.The apparatus of claim 1, wherein the set of prediction targets comprises non-transmitted targets.5.The apparatus of claim 1, wherein the one or more processors are individually or collectively configured to cause the UE to:perform inference using the set of measurements to determine a set of predicted channel characteristics for the CSI report.6.The apparatus of claim 5, wherein the set of predicted channel characteristics comprises a set of top prediction targets in signal strength, a set of signal strength measurements for the set of prediction targets, a set of probabilities associated with the set of prediction targets, a set of confidence information associated with the set of prediction targets, or a combination thereof.7.The apparatus of claim 1, wherein the set of CPUs are unoccupied prior to an earliest resource of an earliest measurement occasion in the set of measurement occasions.8.The apparatus of claim 1, wherein the one or more reference signal resources are periodic or semi-persistent resources.9.The apparatus of claim 1, wherein the one or more reference signal resources are aperiodic resources.10.The apparatus of claim 1, wherein the one or more processors are individually or collectively configured to cause the UE to:receive an additional configuration for a set of aperiodic reference signal resources;receive an additional configuration for an additional CSI report associated with a set of additional prediction targets, wherein the set of additional prediction targets are later in time than an additional CSI reference resource;perform an additional set of measurements, on the set of aperiodic reference signal resources, across a set of additional measurement occasions earlier in time than the additional CSI reference resource, wherein an additional set of CPUs at the UE are occupied from a last symbol of the additional configuration triggering the additional CSI report until a last symbol of a message carrying the CSI report; andtransmit the CSI report based at least in part on the additional set of measurements.11.The apparatus of claim 1, wherein the set of CPUs are occupied across all reference signal resources within each measurement occasion.12.The apparatus of claim 1, wherein the set of CPUs are occupied from an initial symbol of each reference signal resource within each measurement occasion until a final symbol of the reference signal resource within the measurement occasion, and the set of CPUs are unoccupied between any reference signal resources within each measurement occasion.13.The apparatus of claim 12, wherein the set of CPUs are unoccupied between any reference signal resources within each measurement occasion based at least in part on a length of each reference signal resource, a length between reference signal resources, or a combination thereof.14.The apparatus of claim 1, wherein the set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a last symbol of a message carrying the CSI report.15.The apparatus of claim 1, wherein the set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a buffer symbol, and the set of CPUs at the UE are occupied from a last symbol of the configuration triggering the CSI report until a last symbol of a message carrying the CSI report.16.The apparatus of claim 15, wherein the set of CPUs are unoccupied from the buffer symbol until the last symbol of the configuration triggering the CSI report.17.The apparatus of claim 1, wherein the set of CPUs are unoccupied between measurement occasions in the set of measurement occasions based at least in part on a length of each measurement occasion, a length between measurement occasions, or a combination thereof.18.The apparatus of claim 1, wherein an additional set of CPUs, larger than the set of CPUs, are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a last symbol of a message carrying the CSI report.19.The apparatus of claim 1, wherein an additional set of CPUs, larger than the set of CPUs, are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a buffer symbol, and the set of CPUs are occupied from the buffer symbol until a last symbol of a message carrying the CSI report.20.The apparatus of claim 1, wherein an additional set of CPUs, larger than the set of CPUs, are occupied from a last symbol of the configuration triggering the CSI report until a last symbol of a message carrying the CSI report.21.The apparatus of claim 1, wherein an additional set of CPUs, larger than the set of CPUs, are occupied from a last symbol of the configuration triggering the CSI report until a buffer symbol, and the set of CPUs are occupied from the buffer symbol until a last symbol of a message carrying the CSI report.22.An apparatus for wireless communication at a user equipment (UE) , comprising:one or more memories; andone or more processors, coupled to the one or more memories, individually or collectively configured to cause the UE to:receive a configuration for a set of reference signal resources;receive a configuration for a channel state information (CSI) report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource;perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein a first set of CSI processing units (CPUs) at the UE are occupied from a first symbol of an earliest resource in each measurement occasion until a last symbol of a latest resource in the measurement occasion, and a second set of CPUs, larger than the first set of CPUs, are occupied at least during inference; andtransmit the CSI report based at least in part on the set of measurements.23.The apparatus of claim 22, wherein the set of reference signal resources comprises a synchronization signal block (SSB) , a CSI reference signal (CSI-RS) , a CSI interference measurement (CSI-IM) resource, or a combination thereof.24.The apparatus of claim 22, wherein the set of prediction targets comprises a synchronization signal block (SSB) or a CSI reference signal (CSI-RS) .25.The apparatus of claim 22, wherein the set of prediction targets comprises non-transmitted targets.26.The apparatus of claim 22, wherein the one or more processors are individually or collectively configured to cause the UE to:perform the inference using the set of measurements to determine a set of predicted channel characteristics for the CSI report.27.The apparatus of claim 26, wherein the set of predicted channel characteristics comprises a set of top prediction targets in signal strength, a set of signal strength measurements for the set of prediction targets, a set of probabilities associated with the set of prediction targets, a set of confidence information associated with the set of prediction targets, or a combination thereof.28.The apparatus of claim 22, wherein the second set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a last symbol of a message carrying the CSI report.29.The apparatus of claim 22, wherein the second set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a buffer symbol, and the first set of CPUs are occupied from the buffer symbol until a last symbol of a message carrying the CSI report.30.The apparatus of claim 22, wherein the second set of CPUs are occupied from a last symbol of the configuration triggering the CSI report until a last symbol of a message carrying the CSI report.31.The apparatus of claim 22, wherein the second set of CPUs are occupied from a last symbol of the configuration triggering the CSI report until a buffer symbol, and the first set of CPUs are occupied from the buffer symbol until a last symbol of a message carrying the CSI report.32.The apparatus of claim 22, wherein the first set of CPUs are occupied from a last symbol of a latest reference signal resource in a latest measurement occasion until a last symbol of the configuration triggering the CSI report.33.The apparatus of claim 22, wherein the first set of CPUs and the second set of CPUs are associated with a same total capability for the UE.34.The apparatus of claim 22, wherein the first set of CPUs are associated with a first total capability for the UE, and the second set of CPUs are associated with a second total capability for the UE.35.The apparatus of claim 22, wherein the one or more processors are individually or collectively configured to cause the UE to:select an initial measurement occasion in the set of measurement occasions based at least in part on the configuration for the set of reference signal resources.36.The apparatus of claim 22, wherein the one or more processors are individually or collectively configured to cause the UE to:receive an indication of an initial measurement occasion in the set of measurement occasions.37.An apparatus for wireless communication at a user equipment (UE) , comprising:one or more memories; andone or more processors, coupled to the one or more memories, individually or collectively configured to cause the UE to:receive a configuration for a set of reference signal resources;receive a configuration for a channel state information (CSI) report associated with a set of prediction targets, wherein the set of prediction targets are later in time than a CSI reference resource;perform a set of measurements, on the set of reference signal resources, across a set of measurement occasions earlier in time than the CSI reference resource, wherein an initial measurement occasion in the set of measurement occasions is selected by the UE, indicated by a preconfiguration, or indicated by a network; andtransmit the CSI report based at least in part on the set of measurements.38.The apparatus of claim 37, wherein the one or more processors are individually or collectively configured to cause the UE to:select the initial measurement occasion in the set of measurement occasions based at least in part on the configuration for the set of reference signal resources.39.The apparatus of claim 37, wherein the preconfiguration is stored in the one or more memories of the UE.40.The apparatus of claim 37, wherein the one or more processors are individually or collectively configured to cause the UE to:receive an indication of the initial measurement occasion in the set of measurement occasions from the network.