User equipment-side temporal beam prediction reporting
By selecting resources based on predicted channel characteristics and using quantization formats, the solution addresses overhead and resource waste in UE-side temporal beam prediction reporting, improving accuracy and efficiency in wireless communication systems.
Patent Information
- Application Number
- PCT/CN2024/086141
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-04
- Publication Date
- 2025-10-09
AI Technical Summary
Existing wireless communication systems face challenges in efficiently reducing overhead and wasting network resources in UE-side temporal beam prediction reporting, particularly in dynamic environments where beam predictions may vary across multiple instances.
The proposed solution involves selecting a set of K resources for reporting based on predicted channel characteristics and historical measurements, and using a quantization format to optimize the temporal beam prediction report, thereby reducing overhead and improving accuracy.
This approach effectively reduces overhead and conserves network resources while enhancing the accuracy and resolution of beam prediction reports, facilitating more efficient wireless communication.
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Figure CN2024086141_09102025_PF_FP_ABST
Abstract
Description
USER EQUIPMENT-SIDE TEMPORAL BEAM PREDICTION REPORTING
[0001] FIELD OF THE DISCLOSURE
[0002] Aspects of the present disclosure generally relate to wireless communication and specifically relate to techniques, apparatuses, and methods for user equipment (UE) -side temporal beam prediction reporting.BACKGROUND
[0003] Wireless communication systems are widely deployed to provide various services that may include carrying voice, text, messaging, video, data, and / or other traffic. The services may include unicast, multicast, and / or broadcast services, among other examples. Typical wireless communication systems may employ multiple-access radio access technologies (RATs) capable of supporting communication with multiple users by sharing 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.
[0004] The above multiple-access RATs have been adopted in various telecommunication standards to provide common protocols that enable different wireless communication devices to communicate on a municipal, national, regional, or global level. 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 mobile broadband evolutions beyond NR) may be designed to better support Internet of things (IoT) and reduced capability device deployments, industrial connectivity, millimeter wave (mmWave) expansion, licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployment, sidelink and other device-to-device direct communication technologies (for example, cellular vehicle-to-everything (CV2X) communication) , massive multiple-input multiple-output (MIMO) , disaggregated network architectures and network topology expansions, multiple-subscriber implementations, high-precision positioning, and / or radio frequency (RF) sensing, among other examples. As the demand for mobile broadband access continues to increase, further improvements in NR may be implemented, and other radio access technologies such as 6G may be introduced, to further advance mobile broadband evolution.SUMMARY
[0005] Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE) . The method may include selecting, from a plurality of prediction target resources, a set of K resources for which information is to be reported by the UE, the set of K resources being selected based at least in part on at least one of, predicted channel characteristic information associated with the plurality of prediction target resources, where, for a given prediction target resource, the predicted channel characteristic information includes information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources. The method may include transmitting a temporal beam prediction report including the information associated with the set of K resources.
[0006] Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include transmitting a configuration associated with a UE selection of a set of K resources, from a plurality of prediction target resources, for which information is to be reported by the UE, wherein the configuration indicates that the UE is to select the set of K resources based at least in part on at least one of, predicted channel characteristic information associated with the plurality of prediction target resources, where, for a given prediction target resource, the predicted channel characteristic information includes associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources. The method may include receiving a temporal beam prediction report including the information associated with the set of K resources.
[0007] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include selecting a quantization format to be used for reporting information associated with for a set of K resources selected from a plurality of prediction target resources. The method may include transmitting a temporal beam prediction report including an indication of the quantization format and the information associated with the set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format.
[0008] Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include receiving a temporal beam prediction report including an indication of a quantization format and information associated with a set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format. The method may include interpreting the information associated with the set of K resources according to the quantization format indicated in the temporal beam prediction report.
[0009] Some aspects described herein relate to a UE for wireless communication. The user equipment 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 select, from a plurality of prediction target resources, a set of K resources for which information is to be reported by the UE, the set of K resources being selected based at least in part on at least one of, predicted channel characteristic information associated with the plurality of prediction target resources, where, for a given prediction target resource, the predicted channel characteristic information includes information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources. The one or more processors may be configured to transmit a temporal beam prediction report including the information associated with the set of K resources.
[0010] Some aspects described herein relate to a network node for wireless communication. The network node 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 transmit a configuration associated with a UE selection of a set of K resources, from a plurality of prediction target resources, for which information is to be reported by the UE, wherein the configuration indicates that the UE is to select the set of K resources based at least in part on at least one of, predicted channel characteristic information associated with the plurality of prediction target resources, where, for a given prediction target resource, the predicted channel characteristic information includes associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources. The one or more processors may be configured to receive a temporal beam prediction report including the information associated with the set of K resources.
[0011] Some aspects described herein relate to a UE for wireless communication. The user equipment 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 select a quantization format to be used for reporting information associated with for a set of K resources selected from a plurality of prediction target resources. The one or more processors may be configured to transmit a temporal beam prediction report including an indication of the quantization format and the information associated with the set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format.
[0012] Some aspects described herein relate to a network node for wireless communication. The network node 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 receive a temporal beam prediction report including an indication of a quantization format and information associated with a set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format. The one or more processors may be configured to interpret the information associated with the set of K resources according to the quantization format indicated in the temporal beam prediction report.
[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 select, from a plurality of prediction target resources, a set of K resources for which information is to be reported by the UE, the set of K resources being selected based at least in part on at least one of, predicted channel characteristic information associated with the plurality of prediction target resources, where, for a given prediction target resource, the predicted channel characteristic information includes information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit a temporal beam prediction report including the information associated with the set of K resources.
[0014] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a network node. The set of instructions, when executed by one or more processors of the network node, may cause the network node to transmit a configuration associated with a UE selection of a set of K resources, from a plurality of prediction target resources, for which information is to be reported by the UE, wherein the configuration indicates that the UE is to select the set of K resources based at least in part on at least one of, predicted channel characteristic information associated with the plurality of prediction target resources, where, for a given prediction target resource, the predicted channel characteristic information includes associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources. The set of instructions, when executed by one or more processors of the network node, may cause the network node to receive a temporal beam prediction report including the information associated with the set of K resources.
[0015] 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 select a quantization format to be used for reporting information associated with for a set of K resources selected from a plurality of prediction target resources. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit a temporal beam prediction report including an indication of the quantization format and the information associated with the set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format.
[0016] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a network node. The set of instructions, when executed by one or more processors of the network node, may cause the network node to receive a temporal beam prediction report including an indication of a quantization format and information associated with a set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format. The set of instructions, when executed by one or more processors of the network node, may cause the network node to interpret the information associated with the set of K resources according to the quantization format indicated in the temporal beam prediction report.
[0017] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for selecting, from a plurality of prediction target resources, a set of K resources for which information is to be reported by the apparatus, the set of K resources being selected based at least in part on at least one of, predicted channel characteristic information associated with the plurality of prediction target resources, where, for a given prediction target resource, the predicted channel characteristic information includes information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources. The apparatus may include means for transmitting a temporal beam prediction report including the information associated with the set of K resources.
[0018] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting a configuration associated with a UE selection of a set of K resources, from a plurality of prediction target resources, for which information is to be reported by the UE, wherein the configuration indicates that the UE is to select the set of K resources based at least in part on at least one of, predicted channel characteristic information associated with the plurality of prediction target resources, where, for a given prediction target resource, the predicted channel characteristic information includes associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources. The apparatus may include means for receiving a temporal beam prediction report including the information associated with the set of K resources.
[0019] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for selecting a quantization format to be used for reporting information associated with for a set of K resources selected from a plurality of prediction target resources. The apparatus may include means for transmitting a temporal beam prediction report including an indication of the quantization format and the information associated with the set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format.
[0020] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a temporal beam prediction report including an indication of a quantization format and information associated with a set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format. The apparatus may include means for interpreting the information associated with the set of K resources according to the quantization format indicated in the temporal beam prediction report.
[0021] 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, the specification and accompanying drawings.
[0022] 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
[0023] 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.
[0024] Fig. 1 is a diagram illustrating an example of a wireless communication network, in accordance with the present disclosure.
[0025] Fig. 2 is a diagram illustrating an example network node in communication with an example user equipment (UE) in a wireless network, in accordance with the present disclosure.
[0026] Fig. 3 is a diagram illustrating an example disaggregated base station architecture, in accordance with the present disclosure.
[0027] Fig. 4 is a diagram illustrating an example of an artificial intelligence or machine learning (AI / ML) based beam management, in accordance with the present disclosure.
[0028] Fig. 5 is a diagram illustrating an example associated with UE-side temporal beam prediction reporting, in accordance with the present disclosure.
[0029] Fig. 6 is a diagram illustrating an example associated with UE-side temporal beam prediction reporting, in accordance with the present disclosure.
[0030] Fig. 7 is a diagram illustrating an example process performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure.
[0031] Fig. 8 is a diagram illustrating an example process performed, for example, at a network node or an apparatus of a network node, in accordance with the present disclosure.
[0032] Fig. 9 is a diagram illustrating an example process performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure.
[0033] Fig. 10 is a diagram illustrating an example process performed, for example, at a network node or an apparatus of a network node, in accordance with the present disclosure.
[0034] Fig. 11 is a diagram of an example apparatus for wireless communication, in accordance with the present disclosure.
[0035] Fig. 12 is a diagram of an example apparatus for wireless communication, in accordance with the present disclosure.DETAILED DESCRIPTION
[0036] 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 and 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.
[0037] 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.
[0038] A user equipment (UE) or network node can use an artificial intelligence or machine learning (AI / ML) functionality to perform certain tasks. An AI / ML functionality may incorporate an AI / ML model such as an artificial neural network (ANN) . One example of a use case for an AI / ML functionality is AI / ML based beam management. Generally, beam management may include measurement and reporting of the strength or quality of various beams to facilitate operations such as handover, updating of a UE or network’s active beam, or cell selection. These measurements may involve the UE tuning to a frequency associated with a measurement, forming a beam associated with the measurement, calculating a metric, and reporting the metric. Each of these operations may involve some amount of overhead at the UE. AI / ML based beam management may assist with reducing these forms of overhead. For example, AI / ML based beam management may enable overhead and latency reduction (by reducing the number of beams or reference signals that need to be measured) and beam selection accuracy improvement (by providing additional metrics or measurement values to facilitate accurate beam selection, such as by providing beam metrics for additional beams that were not measured) .
[0039] An AI / ML functionality may enable the UE to generate one or more inferences or predictions according to data input to the AI / ML functionality. The input data may include, for example, a measurement on a beam referred to as a Set B beam or as a measurement resource, which may be a historical measurement or a contemporaneous (such as instantaneous) measurement. The one or more inferences or predictions may relate to a beam prediction result regarding a beam referred to as a Set A beam or as a prediction target resource. For example, Set A (e.g., a set of prediction target resources) may be for downlink beam prediction, and Set B (e.g., a set of measurement resources) may be for downlink beam measurement. In some examples, the UE may perform spatial-domain beam prediction for Set A beams based on measurement results (such as current measurement results or instantaneous measurement results) for Set B beams. Additionally, or alternatively, the UE may perform time-domain beam prediction for Set A beams based on measurement results for Set B beams. With respect to time-domain beam prediction (also referred to as temporal beam prediction) , an input to an AI / ML model may include measurement results of a set of latest measurement instances, and an output may comprise predicted channel characteristic information for future time instances (also referred to as prediction instances) . In some cases, Set B’s beams may be a subset of Set A’s beams. Alternatively, Set B beams may be different from Set A beams (i.e., Set B may in some cases not be a subset of Set A) . Different UEs and network nodes may have different capabilities or may collaborate at different levels. These differences in capability or level of collaboration may lead to differences in AI / ML approaches, such as differences in AI / ML models used in various scenarios, different signaling procedures, or the like.
[0040] In the case of beam prediction at a UE side, a UE may need to provide a beam prediction report that includes information associated with beam predictions. For example, a UE may need to provide a Layer 1 (L1) prediction report that includes information associated with an output of UE-side temporal beam prediction. Such a temporal beam prediction report may need to include, for example, indices of the best K beams (e.g., the K beams with the highest predicted reference signal received powers (RSRPs) ) from Set A. Notably, the best K beams can be different among different prediction instances associated with a given temporal beam prediction report. Therefore, a temporal beam prediction report that indicates the best K beams for each prediction instance associated with the temporal beam prediction report may result in an undesirable amount of overhead. Furthermore, indicating all instantaneous best K beams may not be particularly beneficial to a network node. For example, a beam may be among the best K beams in one or two prediction instances, among several prediction instances, due to an error in prediction. Further, even if beam prediction is accurate and reliable, a beam that appears sporadically is not be useful for beam selection (e.g., due to overhead required for beam switching) . Therefore, a temporal beam prediction report that indicates the best K beams for each prediction instance associated with the temporal beam prediction report may be wasteful of network resources. What is needed is a technique for selecting a set of K beams to be reported in a temporal beam prediction report with a reduced overhead and without wasting network resources.
[0041] Furthermore, with respect to reducing overhead in a temporal beam prediction report for UE-side temporal beam prediction, some differential indication of predicted channel characteristics (e.g., predicted RSRPs) may be useful. An appropriate range of differential predicted channel characteristic values may depend on an environment around the UE (e.g., whether blocking or shadowing are occurring) or mobility characteristics of the UE situation (e.g., a velocity, an angular velocity, or the like) . In practice, information available to the UE may indicate a suitable range and resolution for differential predicted channel characteristic values that need to be indicated in the temporal beam prediction report. Therefore, information available to the UE (e.g., information regarding a rate of change of a predicted channel characteristic across multiple prediction instances) could serve to enable the UE to select a quantization format to be used for reporting information in a temporal beam prediction report so as to reduce overhead or improve accuracy or resolution. Notably, a solution that uses a fixed format and fixed payload size for the temporal beam prediction report may be preferable (e.g., to avoid complexity introduced with dynamically changing the format or payload size of the temporal beam prediction report) .
[0042] Various aspects relate generally to UE-side temporal beam prediction reporting. Some aspects more specifically relate to techniques and apparatuses described herein for selection of a set of K beams to be reported by a UE in a temporal beam prediction report. In some aspects, a UE may select, from a plurality of prediction target resources, a set of K resources for which information is to be reported by the UE. In some aspects, the UE selects the set of K resources based at least in part on predicted channel characteristic information associated with the plurality of prediction target resources where, for a given prediction target resource, the predicted channel characteristic information includes information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resources. Additionally, or alternatively, the UE may select the set of K resources based at least in part on current or historical measurement information associated with the plurality of prediction target resources. The UE may then transmit a temporal beam prediction report including the information associated with the set of K resources.
[0043] Additionally, some aspects relate to techniques and apparatuses described herein for selection of a quantization format to be used for reporting information in a temporal beam prediction report. In some aspects, a UE may select a quantization format to be used for reporting information associated with for a set of K resources selected from a plurality of prediction target resources. The UE may then transmit a temporal beam prediction report including an indication of the quantization format and the information associated with the set of K resources, where the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format.
[0044] 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, by enabling selection of a set of K beams to be reported by a UE in a temporal beam prediction report, the described techniques can be used to reduce overhead associated with temporal beam prediction reporting, while also reducing wasting network resources. Further, in some examples, by enabling selection of a quantization format to be used for reporting information in a temporal beam prediction report, the described techniques can be used to reduce overhead, while improving accuracy or resolution associated with a temporal beam prediction report.
[0045] Multiple-access radio access technologies (RATs) have been adopted in various telecommunication standards to provide common protocols that enable wireless communication devices to communicate on a municipal, enterprise, national, regional, or global level. For example, 5G New Radio (NR) is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) . 5G NR supports various technologies and use cases including enhanced mobile broadband (eMBB) , ultra-reliable low-latency communication (URLLC) , massive machine-type communication (mMTC) , millimeter wave (mmWave) technology, beamforming, network slicing, edge computing, Internet of Things (IoT) connectivity and management, and network function virtualization (NFV) .
[0046] As the demand for broadband access increases and as technologies supported by wireless communication networks evolve, further technological improvements may be adopted in or implemented for 5G NR or future RATs, such as 6G, to further advance the evolution of wireless communication for a wide variety of existing and new use cases and applications. Such technological improvements may be associated with new frequency band expansion, licensed and unlicensed spectrum access, overlapping spectrum use, small cell deployments, non-terrestrial network (NTN) deployments, disaggregated network architectures and network topology expansion, device aggregation, advanced duplex communication, sidelink and other device-to-device direct communication, IoT (including passive or ambient IoT) networks, reduced capability (RedCap) UE functionality, industrial connectivity, multiple-subscriber implementations, high-precision positioning, radio frequency (RF) sensing, and / or AI / ML, among other examples. These technological improvements may support use cases such as 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. The methods, operations, apparatuses, and techniques described herein may enable one or more of the foregoing technologies and / or support one or more of the foregoing use cases.
[0047] 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, shown as a network node (NN) 110a, a network node 110b, a network node 110c, and a network node 110d. The network nodes 110 may support communications with multiple UEs 120, shown as a UE 120a, a UE 120b, a UE 120c, a UE 120d, and a UE 120e.
[0048] 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 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 ranges. Examples of RATs include a 4G RAT, a 5G / NR RAT, and / or a 6G RAT, among other examples. 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 one another.
[0049] 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 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 frequencies that are included in mid-band frequencies, that are within FR2, FR4, FR4-a or FR4-1, or FR5, and / or that are within the EHF band. Higher frequency bands may extend 5G NR operation, 6G operation, and / or other RATs beyond 52.6 GHz. For example, each of FR4a, FR4-1, FR4, and FR5 falls within the EHF band. In some examples, the wireless communication network 100 may implement dynamic spectrum sharing (DSS) , in which multiple RATs (for example, 4G / LTE and 5G / NR) are implemented with dynamic bandwidth allocation (for example, based on user demand) in a single frequency band. It is contemplated that the frequencies included in these operating bands (for example, FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and techniques described herein may be applicable to those modified frequency ranges.
[0050] A network node 110 may include one or more devices, components, or systems that enable communication between a UE 120 and one or more devices, components, or systems of the wireless communication network 100. 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, an eNB, a gNB, an access point (AP) , a transmission reception point (TRP) , a mobility element, a core, 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) .
[0051] 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 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 node (for example, 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 uses a full radio protocol stack to enable or facilitate communication between a UE 120 and a core network of the wireless communication network 100.
[0052] Alternatively, and as also shown, a network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station) , meaning that the network node 110 may implement 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. For example, a disaggregated network node may have a disaggregated architecture. 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 base station functionality into multiple units that can be individually deployed.
[0053] 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 / or one or more radio units (RUs) . A CU may host one or more higher layer control functions, such as radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, and / or service data adaptation protocol (SDAP) functions, 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 one or more lower PHY layer functions, such as a fast Fourier transform (FFT) , an inverse FFT (iFFT) , beamforming, physical random access channel (PRACH) extraction and filtering, and / or scheduling of resources for one or more UEs 120, among other examples. An RU may host 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 functional split. In such an architecture, each RU can be operated to handle over the air (OTA) communication with one or more UEs 120.
[0054] In some aspects, a single network node 110 may include a combination of one or more CUs, one or more DUs, and / or one or more RUs. Additionally or alternatively, a network node 110 may include one or more Near-Real Time (Near-RT) RAN Intelligent Controllers (RICs) and / or one or more Non-Real Time (Non-RT) RICs. 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. A virtual unit may be implemented as a virtual network function, such as associated with 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. In the 3GPP, 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 multiple (for example, three) cells. 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 service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with 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) ) . A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. A network node 110 for a femto cell may be referred to as a femto network node or an in-home network node. 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 base station, 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. In the example shown in Fig. 1, the network node 110a may be a macro network node for a macro cell 130a, the network node 110b may be a pico network node for a pico cell 130b, and the network node 110c may be a femto network node for a femto cell 130c. Various different types of network nodes 110 may generally transmit at different power levels, serve different coverage areas, and / or have different impacts on interference in the wireless communication network 100 than other types of network nodes 110. For example, macro network nodes may have a high transmit power level (for example, 5 to 40 watts) , whereas pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (for example, 0.1 to 2 watts) .
[0057] 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 channels may include one or more control channels and one or more data channels. A downlink control channel may be used to transmit downlink control information (DCI) (for example, scheduling information, reference signals, and / or configuration information) from a network node 110 to a UE 120. 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 one or more physical downlink control channels (PDCCHs) , and downlink data channels may include one or more physical downlink shared channels (PDSCHs) . Uplink channels may similarly include one or more control channels and one or more data channels. An uplink control channel may be used to transmit uplink control information (UCI) (for example, reference signals and / or feedback corresponding to one or more downlink transmissions) 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 one or more physical uplink control channels (PUCCHs) , and uplink data channels may include one or more physical uplink shared channels (PUSCHs) . The downlink and the uplink may each include a set of resources on which the network node 110 and the UE 120 may communicate.
[0058] Downlink and uplink resources may include time domain resources (frames, subframes, slots, and / or symbols) , frequency domain resources (frequency bands, component carriers, subcarriers, resource blocks, and / or resource elements) , and / or spatial domain resources (particular transmit directions and / or beam parameters) . Frequency domain resources of some bands may be subdivided into bandwidth parts (BWPs) . A BWP may be a continuous block of frequency domain resources (for example, a continuous block of resource blocks) that are allocated for one or more UEs 120. A UE 120 may be configured with both an uplink BWP and a downlink BWP (where the uplink BWP and the downlink BWP may be the same BWP or different BWPs) . A BWP may be dynamically configured (for example, by a network node 110 transmitting a DCI configuration to the one or more UEs 120) and / or reconfigured, which means that a BWP can be adjusted in real-time (or near-real-time) based on changing network conditions in the wireless communication network 100 and / or based on the specific requirements of the one or more UEs 120. This 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) , leaving more frequency domain resources to be spread across multiple UEs 120. Thus, BWPs may also assist in the implementation of lower-capability UEs 120 by facilitating the configuration of smaller bandwidths for communication by such UEs 120.
[0059] As described above, in some aspects, the wireless communication network 100 may be, may include, or may be included in, an IAB network. In an IAB network, at least one network node 110 is an anchor network node that communicates with a core network. An anchor network node 110 may also be referred to as an IAB donor (or “IAB-donor” ) . The anchor network node 110 may connect to the core network via a wired backhaul link. For example, an Ng interface of the anchor network node 110 may terminate at the core network. Additionally or alternatively, an anchor network node 110 may connect to one or more devices of the core network that provide a core access and mobility management function (AMF) . An IAB network also generally includes multiple non-anchor network nodes 110, which may also be referred to as relay network nodes or simply as IAB nodes (or “IAB-nodes” ) . Each non-anchor network node 110 may communicate directly with the anchor network node 110 via a wireless backhaul link to access the core network, or may communicate indirectly with the anchor network node 110 via one or more other non-anchor network nodes 110 and associated wireless backhaul links that form a backhaul path to the core network. Some anchor network node 110 or other non-anchor network node 110 may also communicate directly with one or more UEs 120 via wireless access links that carry access traffic. In some examples, network resources for wireless communication (such as time resources, frequency resources, and / or spatial resources) may be shared between access links and backhaul links.
[0060] In some examples, any network node 110 that relays communications may be referred to as a relay network node, a relay station, or simply as a relay. A relay may receive a transmission of a communication from an upstream station (for example, another network node 110 or a UE 120) and transmit the communication to a downstream station (for example, a UE 120 or another network node 110) . In this case, the wireless communication network 100 may include or be referred to as a “multi-hop network. ” In the example shown in Fig. 1, the network node 110d (for example, a relay network node) may communicate with the network node 110a (for example, a macro network node) and the UE 120d in order to facilitate communication between the network node 110a and the UE 120d. Additionally or alternatively, a UE 120 may be or may operate as a relay station that can relay transmissions to or from other UEs 120. A UE 120 that relays communications may be referred to as a UE relay or a relay UE, among other examples.
[0061] The UEs 120 may be physically dispersed throughout the wireless communication network 100, and each UE 120 may be stationary or mobile. A UE 120 may be, may include, or may be included in an access terminal, another 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 gaming device, 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, and / or smart jewelry, such as a smart ring or a smart bracelet) , an entertainment device (for example, a music device, a video device, and / 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.
[0062] A UE 120 and / or a network node 110 may include one or more chips, system-on-chips (SoCs) , chipsets, packages, or devices that individually or collectively constitute or comprise a processing system. The processing system 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) and / or digital signal processors (DSPs) ) , processing blocks, application-specific integrated circuits (ASIC) , programmable logic devices (PLDs) (such as field programmable gate arrays (FPGAs) ) , or other discrete gate or transistor logic or circuitry (all of which may be generally referred to herein individually as “processors” or collectively as “the processor” or “the processor circuitry” ) . One or more of the 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, or may include the group of processors all being configured or configurable to perform the set of functions.
[0063] The processing system may further include memory circuitry in the form of one or more memory devices, memory blocks, memory elements or other discrete gate or transistor logic or circuitry, each of which may include tangible storage media such as random-access memory (RAM) or read-only memory (ROM) , or combinations thereof (all of which may be generally referred to herein individually as “memories” 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 (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 preconfigured to perform various functions or operations described herein without requiring configuration by software. The processing system may further include or be coupled with one or more modems (such as a Wi-Fi (for example, IEEE compliant) modem or a cellular (for example, 3GPP 4G LTE, 5G, or 6G compliant) modem) . In some implementations, one or more processors of the processing system include or implement one or more of the modems. The processing system may further 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 implementations, one or more processors of the processing system include or implement one or more of the radios, RF chains or transceivers. The UE 120 may include or may be included in a housing that houses components associated with the UE 120 including the processing system.
[0064] Some UEs 120 may be considered machine-type communication (MTC) UEs, evolved or enhanced machine-type communication (eMTC) , UEs, further enhanced eMTC (feMTC) UEs, or enhanced feMTC (efeMTC) UEs, or further evolutions thereof, all of which may be simply referred to as “MTC UEs” . An MTC UE may be, may include, or may be included in or coupled with a robot, an uncrewed aerial vehicle, a remote device, a sensor, a meter, a monitor, and / or a location tag. Some UEs 120 may be considered IoT devices and / or may be implemented as NB-IoT (narrowband IoT) devices. An IoT UE or NB-IoT device may be, may include, or may be included in or coupled with an industrial machine, an appliance, a refrigerator, a doorbell camera device, a home automation device, and / or a light fixture, among other examples. Some UEs 120 may be considered Customer Premises Equipment, which may include telecommunications devices that are installed at a customer location (such as a home or office) to enable access to a service provider's network (such as included in or in communication with the wireless communication network 100) .
[0065] 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 UEs 120 of the first category and UEs 120 of the second capability) . A UE 120 of the third category may be referred to as a reduced capacity 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, and / 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, and / or smart city deployments, among other examples.
[0066] In some examples, two or more UEs 120 (for example, shown as UE 120a and UE 120e) may communicate directly with one another using sidelink communications (for example, without communicating by way of a network node 110 as an intermediary) . As an example, the UE 120a may directly transmit data, control information, or other signaling as a sidelink communication to the UE 120e. This is in contrast to, for example, the UE 120a first transmitting data in an UL communication to a network node 110, which then transmits the data to the UE 120e in a DL communication. In various examples, the UEs 120 may transmit and receive sidelink communications using peer-to-peer (P2P) communication protocols, device-to-device (D2D) communication protocols, vehicle-to-everything (V2X) communication protocols (which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, and / or vehicle-to-pedestrian (V2P) protocols) , and / or mesh network communication protocols. In some deployments and configurations, a network node 110 may schedule and / or allocate resources for sidelink communications between UEs 120 in the wireless communication network 100. In some other deployments and configurations, a UE 120 (instead of a network node 110) may perform, or collaborate or negotiate with one or more other UEs to perform, scheduling operations, resource selection operations, and / or other operations for sidelink communications.
[0067] In various examples, some of the network nodes 110 and the UEs 120 of the wireless communication network 100 may be configured for full-duplex operation in addition to half-duplex operation. A network node 110 or a UE 120 operating in a half-duplex mode may perform only one of transmission or reception during particular time resources, such as during particular slots, symbols, or other time periods. Half-duplex operation may involve time- division duplexing (TDD) , in which DL transmissions of the network node 110 and UL transmissions of the UE 120 do not occur in the same time resources (that is, the transmissions do not overlap in time) . In contrast, a network node 110 or a UE 120 operating in a full-duplex mode can transmit and receive communications concurrently (for example, in the same time resources) . By operating in a full-duplex mode, network nodes 110 and / or UEs 120 may generally increase the capacity of the network and the radio access link. In some examples, full-duplex operation may involve frequency-division duplexing (FDD) , in which DL transmissions of the network node 110 are performed in a first frequency band or on a first component carrier and transmissions of the UE 120 are performed in a second frequency band or on a second component carrier different than the first frequency band or the first component carrier, respectively. In some examples, full-duplex operation may be enabled for a UE 120 but not for a network node 110. For example, a UE 120 may simultaneously transmit an UL transmission to a first network node 110 and receive a DL transmission from a second network node 110 in the same time resources. In some other examples, full-duplex operation may be enabled for a network node 110 but not for a UE 120. For example, a network node 110 may simultaneously transmit a DL transmission to a first UE 120 and receive an UL transmission from a second UE 120 in the same time resources. In some other examples, full-duplex operation may be enabled for both a network node 110 and a UE 120.
[0068] In some examples, the UEs 120 and the network nodes 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. MIMO may be implemented using various spatial processing or spatial multiplexing operations. In some examples, MIMO may support simultaneous transmission to multiple receivers, referred to as multi-user MIMO (MU-MIMO) . Some RATs may employ advanced MIMO techniques, such as 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) .
[0069] In some aspects, the UE 120 may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may select, from a plurality of prediction target resources, a set of K resources for which information is to be reported by the UE, the set of K resources being selected based at least in part on at least one of: predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources; and transmit a temporal beam prediction report including the information associated with the set of K resources. Additionally, or alternatively, as described in more detail elsewhere herein, the communication manager 140 may select a quantization format to be used for reporting information associated with for a set of K resources selected from a plurality of prediction target resources; and transmit a temporal beam prediction report including an indication of the quantization format and the information associated with the set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format. Additionally, or alternatively, the communication manager 140 may perform one or more other operations described herein.
[0070] In some aspects, the network node 110 may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may transmit a configuration associated with a UE selection of a set of K resources, from a plurality of prediction target resources, for which information is to be reported by the UE, wherein the configuration indicates that the UE is to select the set of K resources based at least in part on at least one of: predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources; and receive a temporal beam prediction report including the information associated with the set of K resources. Additionally, or alternatively, as described in more detail elsewhere herein, the communication manager 150 may receive a temporal beam prediction report including an indication of a quantization format and information associated with a set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format; and interpret the information associated with the set of K resources according to the quantization format indicated in the temporal beam prediction report. Additionally, or alternatively, the communication manager 150 may perform one or more other operations described herein.
[0071] As indicated above, Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.
[0072] Fig. 2 is a diagram illustrating an example network node 110 in communication with an example UE 120 in a wireless network, in accordance with the present disclosure.
[0073] As shown in Fig. 2, the network node 110 may include a data source 212, a transmit processor 214, a transmit (TX) MIMO processor 216, a set of modems 232 (shown as 232a through 232t, where t ≥ 1) , a set of antennas 234 (shown as 234a through 234v, where v ≥ 1) , a MIMO detector 236, a receive processor 238, a data sink 239, a controller / processor 240, a memory 242, a communication unit 244, a scheduler 246, and / or a communication manager 150, among other examples. In some configurations, one or a combination of the antenna (s) 234, the modem (s) 232, the MIMO detector 236, the receive processor 238, the transmit processor 214, and / or the TX MIMO processor 216 may be included in a transceiver of the network node 110. The transceiver may be under control of and used by one or more processors, such as the controller / processor 240, and in some aspects in conjunction with processor-readable code stored in the memory 242, to perform aspects of the methods, processes, and / or operations described herein. In some aspects, the network node 110 may include one or more interfaces, communication components, and / or other components that facilitate communication with the UE 120 or another network node.
[0074] The terms “processor, ” “controller, ” or “controller / processor” may refer to one or more controllers and / or one or more processors. For example, reference to “a / the processor, ” “a / the controller / processor, ” or the like (in the singular) should be understood to refer to any one or more of the processors described in connection with Fig. 2, such as a single processor or a combination of multiple different processors. Reference to “one or more processors” should be understood to refer to any one or more of the processors described in connection with Fig. 2. For example, one or more processors of the network node 110 may include transmit processor 214, TX MIMO processor 216, MIMO detector 236, receive processor 238, and / or controller / processor 240. Similarly, one or more processors of the UE 120 may include MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, and / or controller / processor 280.
[0075] In some aspects, a single processor may perform all of the operations described as being performed by the one or more processors. In some aspects, a first set of (one or more) processors of the one or more processors may perform a first operation described as being performed by the one or more processors, and a second set of (one or more) processors of the one or more processors may perform a second operation described as being performed by the one or more processors. The first set of processors and the second set of processors may be the same set of processors or may be different sets of processors. Reference to “one or more memories” should be understood to refer to any one or more memories of a corresponding device, such as the memory described in connection with Fig. 2. For example, operation described as being performed by one or more memories can be performed by the same subset of the one or more memories or different subsets of the one or more memories.
[0076] For downlink communication from the network node 110 to the UE 120, the transmit processor 214 may receive data ( “downlink data” ) intended for the UE 120 (or a set of UEs that includes the UE 120) from the data source 212 (such as a data pipeline or a data queue) . In some examples, the transmit processor 214 may select one or more MCSs for the UE 120 in accordance with one or more channel quality indicators (CQIs) received from the UE 120. The network node 110 may process the data (for example, including encoding the data) for transmission to the UE 120 on a downlink in accordance with the MCS (s) selected for the UE 120 to generate data symbols. The transmit processor 214 may process system information (for example, semi-static resource partitioning information (SRPI) ) and / or control information (for example, CQI requests, grants, and / or upper layer signaling) and provide overhead symbols and / or control symbols. The transmit processor 214 may generate reference symbols for reference signals (for example, a cell-specific reference signal (CRS) , a demodulation reference signal (DMRS) , or a channel state information (CSI) reference signal (CSI-RS) ) and / or synchronization signals (for example, a primary synchronization signal (PSS) or a secondary synchronization signals (SSS) ) .
[0077] The TX MIMO processor 216 may perform spatial processing (for example, precoding) on the data symbols, the control symbols, the overhead symbols, and / or the reference symbols, if applicable, and may provide a set of output symbol streams (for example, T output symbol streams) to the set of modems 232. For example, each output symbol stream may be provided to a respective modulator component (shown as MOD) of a modem 232. Each modem 232 may use the respective modulator component to process (for example, to modulate) a respective output symbol stream (for example, for orthogonal frequency division multiplexing (OFDM) ) to obtain an output sample stream. Each modem 232 may further use the respective modulator component to process (for example, convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain a time domain downlink signal. The modems 232a through 232t may together transmit a set of downlink signals (for example, T downlink signals) via the corresponding set of antennas 234.
[0078] A downlink signal may include a DCI communication, a MAC control element (MAC-CE) communication, an RRC communication, a downlink reference signal, or another type of downlink communication. Downlink signals may be transmitted on a PDCCH, a PDSCH, and / or on another downlink channel. A downlink signal may carry one or more transport blocks (TBs) of data. A TB may be a unit of data that is transmitted over an air interface in the wireless communication network 100. A data stream (for example, from the data source 212) may be encoded into multiple TBs for transmission over the air interface. The quantity of TBs used to carry the data associated with a particular data stream may be associated with a TB size common to the multiple TBs. The TB size may be based on or otherwise associated with radio channel conditions of the air interface, the MCS used for encoding the data, the downlink resources allocated for transmitting the data, and / or another parameter. In general, the larger the TB size, the greater the amount of data that can be transmitted in a single transmission, which reduces signaling overhead. However, larger TB sizes may be more prone to transmission and / or reception errors than smaller TB sizes, but such errors may be mitigated by more robust error correction techniques.
[0079] For uplink communication from the UE 120 to the network node 110, uplink signals from the UE 120 may be received by an antenna 234, may be processed by a modem 232 (for example, a demodulator component, shown as DEMOD, of a modem 232) , may be detected by the MIMO detector 236 (for example, a receive (Rx) MIMO processor) if applicable, and / or may be further processed by the receive processor 238 to obtain decoded data and / or control information. The receive processor 238 may provide the decoded data to a data sink 239 (which may be a data pipeline, a data queue, and / or another type of data sink) and provide the decoded control information to a processor, such as the controller / processor 240.
[0080] The network node 110 may use the scheduler 246 to schedule one or more UEs 120 for downlink or uplink communications. In some aspects, the scheduler 246 may use DCI to dynamically schedule DL transmissions to the UE 120 and / or UL transmissions from the UE 120. In some examples, the scheduler 246 may allocate recurring time domain resources and / or frequency domain resources that the UE 120 may use to transmit and / or receive communications using an RRC configuration (for example, a semi-static configuration) , for example, to perform semi-persistent scheduling (SPS) or to configure a configured grant (CG) for the UE 120.
[0081] One or more of the transmit processor 214, the TX MIMO processor 216, the modem 232, the antenna 234, the MIMO detector 236, the receive processor 238, and / or the controller / processor 240 may be included in an RF chain of the network node 110. 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 one or more processors of the network node 110) . In some aspects, the RF chain may be or may be included in a transceiver of the network node 110.
[0082] In some examples, the network node 110 may use the communication unit 244 to communicate with a core network and / or with other network nodes. The communication unit 244 may support wired and / or wireless communication protocols and / or connections, such as Ethernet, optical fiber, common public radio interface (CPRI) , and / or a wired or wireless backhaul, among other examples. The network node 110 may use the communication unit 244 to transmit and / or receive data associated with the UE 120 or to perform network control signaling, among other examples. The communication unit 244 may include a transceiver and / or an interface, such as a network interface.
[0083] The UE 120 may include a set of antennas 252 (shown as antennas 252a through 252r, where r ≥ 1) , a set of modems 254 (shown as modems 254a through 254u, where u ≥ 1) , a MIMO detector 256, a receive processor 258, a data sink 260, a data source 262, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, a memory 282, and / or a communication manager 140, among other examples. One or more of the components of the UE 120 may be included in a housing 284. In some aspects, one or a combination of the antenna (s) 252, the modem (s) 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, or the TX MIMO processor 266 may be included in a transceiver that is included in the UE 120. The transceiver may be under control of and used by one or more processors, such as the controller / processor 280, and in some aspects in conjunction with processor-readable code stored in the memory 282, to perform aspects of the methods, processes, or operations described herein. In some aspects, the UE 120 may include another interface, another communication component, and / or another component that facilitates communication with the network node 110 and / or another UE 120.
[0084] For downlink communication from the network node 110 to the UE 120, the set of antennas 252 may receive the downlink communications or signals from the network node 110 and may provide a set of received downlink signals (for example, R received signals) to the set of modems 254. For example, each received signal may be provided to a respective demodulator component (shown as DEMOD) of a modem 254. Each modem 254 may use the respective demodulator component to condition (for example, filter, amplify, downconvert, and / or digitize) a received signal to obtain input samples. Each modem 254 may use the respective demodulator component to further demodulate or process the input samples (for example, for OFDM) to obtain received symbols. The MIMO detector 256 may obtain received symbols from the set of modems 254, may perform MIMO detection on the received symbols if applicable, and may provide detected symbols. The receive processor 258 may process (for example, decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260 (which may include a data pipeline, a data queue, and / or an application executed on the UE 120) , and may provide decoded control information and system information to the controller / processor 280.
[0085] For uplink communication from the UE 120 to the network node 110, the transmit processor 264 may receive and process data ( “uplink data” ) from a data source 262 (such as a data pipeline, a data queue, and / or an application executed on the UE 120) and control information from the controller / processor 280. The control information may include one or more parameters, feedback, one or more signal measurements, and / or other types of control information. In some aspects, the receive processor 258 and / or the controller / processor 280 may determine, for a received signal (such as received from the network node 110 or another UE) , one or more parameters relating to transmission of the uplink communication. The one or more parameters may include an RSRP parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, a CQI parameter, or a transmit power control (TPC) parameter, among other examples. The control information may include an indication of the RSRP parameter, the RSSI parameter, the RSRQ parameter, the CQI parameter, the TPC parameter, and / or another parameter. The control information may facilitate parameter selection and / or scheduling for the UE 120 by the network node 110.
[0086] The transmit processor 264 may generate reference symbols for one or more reference signals, such as an uplink DMRS, an uplink sounding reference signal (SRS) , and / or another type of reference signal. The symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266, if applicable, and further processed by the set of modems 254 (for example, for DFT-s-OFDM or CP-OFDM) . The TX MIMO processor 266 may perform spatial processing (for example, precoding) on the data symbols, the control symbols, the overhead symbols, and / or the reference symbols, if applicable, and may provide a set of output symbol streams (for example, U output symbol streams) to the set of modems 254. For example, each output symbol stream may be provided to a respective modulator component (shown as MOD) of a modem 254. Each modem 254 may use the respective modulator component to process (for example, to modulate) a respective output symbol stream (for example, for OFDM) to obtain an output sample stream. Each modem 254 may further use the respective modulator component to process (for example, convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain an uplink signal.
[0087] The modems 254a through 254u may transmit a set of uplink signals (for example, R uplink signals or U uplink symbols) via the corresponding set of antennas 252. An uplink signal may include a UCI communication, a MAC-CE communication, an RRC communication, or another type of uplink communication. Uplink signals may be transmitted on a PUSCH, a PUCCH, and / or another type of uplink channel. An uplink signal may carry one or more TBs of data. Sidelink data and control transmissions (that is, transmissions directly between two or more UEs 120) may generally use similar techniques as were described for uplink data and control transmission, and may use sidelink-specific channels such as a physical sidelink shared channel (PSSCH) , a physical sidelink control channel (PSCCH) , and / or a physical sidelink feedback channel (PSFCH) .
[0088] One or more antennas of the set of antennas 252 or the set of antennas 234 may include, or may be included within, 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. An antenna panel, an antenna group, a set of antenna elements, or an antenna array may include one or more antenna elements (within a single housing or multiple housings) , a set of coplanar antenna elements, a set of non-coplanar antenna elements, or one or more antenna elements coupled with one or more transmission or reception components, such as one or more components of Fig. 2. As used herein, “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. “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 of the group of antennas. “Antenna module” may refer to circuitry including one or more antennas, which may also include one or more other components (such as filters, amplifiers, or processors) associated with integrating the antenna module into a wireless communication device.
[0089] In some examples, each of the antenna elements of an antenna 234 or an antenna 252 may include one or more sub-elements for radiating or receiving radio frequency signals. For example, a single antenna element may include a first sub-element cross-polarized with a second sub-element that can be used to independently transmit cross-polarized signals. The antenna elements may include patch antennas, dipole antennas, and / or other types of antennas arranged in a linear pattern, a two-dimensional pattern, or another pattern. A spacing between antenna elements may be such that signals with a desired wavelength transmitted separately by the antenna elements may interact or interfere constructively and destructively along various directions (such as to form a desired beam) . For example, given an expected range of wavelengths or frequencies, the spacing may provide a quarter wavelength, a half wavelength, or another fraction of a wavelength of spacing between neighboring antenna elements to allow for the desired constructive and destructive interference patterns of signals transmitted by the separate antenna elements within that expected range.
[0090] 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 phase shift, phase offset, and / or amplitude) to generate one or more beams, which is referred to as beamforming. The term “beam” may refer to a directional transmission of a wireless signal toward a receiving device or otherwise in a desired direction. “Beam” may also generally refer to a direction associated with such a directional signal transmission, a set of directional resources associated with the signal transmission (for example, an angle of arrival, a horizontal direction, and / or a vertical direction) , and / or 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. In some implementations, antenna elements may be individually selected or deselected for directional transmission of a signal (or signals) by controlling amplitudes of one or more corresponding amplifiers and / or phases of the signal (s) to form one or more beams. The shape of a beam (such as the amplitude, width, and / or presence of side lobes) and / or the direction of a beam (such as an angle of the beam relative to a surface of an antenna array) can be dynamically controlled by modifying the phase shifts, phase offsets, and / or amplitudes of the multiple signals relative to each other.
[0091] Different UEs 120 or network nodes 110 may include different numbers of antenna elements. For example, a UE 120 may include a single antenna element, two antenna elements, four antenna elements, eight antenna elements, or a different number of antenna elements. As another example, a network node 110 may include eight antenna elements, 24 antenna elements, 64 antenna elements, 128 antenna elements, or a different number of antenna elements. Generally, a larger number of antenna elements may provide increased control over parameters for beam generation relative to a smaller number of antenna elements, whereas a smaller number of antenna elements may be less complex to implement and may use less power than a larger number of antenna elements. Multiple antenna elements may support multiple-layer transmission, in which a first layer of a communication (which may include a first data stream) and a second layer of a communication (which may include a second data stream) are transmitted using the same time and frequency resources with spatial multiplexing.
[0092] While blocks in Fig. 2 are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components. For example, the functions described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.
[0093] Fig. 3 is a diagram illustrating an example disaggregated base station architecture 300, in accordance with the present disclosure. One or more components of the example disaggregated base station architecture 300 may be, may include, or may be included in one or more network nodes (such one or more network nodes 110) . The disaggregated base station architecture 300 may include a CU 310 that can communicate directly with a core network 320 via a backhaul link, or that can communicate indirectly with the core network 320 via one or more disaggregated control units, such as a Non-RT RIC 350 associated with a Service Management and Orchestration (SMO) Framework 360 and / or a Near-RT RIC 370 (for example, via an E2 link) . The CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via F1 interfaces. Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 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 340.
[0094] Each of the components of the disaggregated base station architecture 300, including the CUs 310, the DUs 330, the RUs 340, the Near-RT RICs 370, the Non-RT RICs 350, and the SMO Framework 360, 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.
[0095] In some aspects, the CU 310 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 310 may be deployed to communicate with one or more DUs 330, as necessary, for network control and signaling. Each DU 330 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 340. For example, a DU 330 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 330, or for communicating signals with the control functions hosted by the CU 310. Each RU 340 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) 340 may be controlled by the corresponding DU 330.
[0096] The SMO Framework 360 may support RAN deployment and provisioning of non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO Framework 360 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 360 may interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 390) 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 310, a DU 330, an RU 340, a non-RT RIC 350, and / or a Near-RT RIC 370. In some aspects, the SMO Framework 360 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) 380, via an O1 interface. Additionally or alternatively, the SMO Framework 360 may communicate directly with each of one or more RUs 340 via a respective O1 interface. In some deployments, this configuration can enable each DU 330 and the CU 310 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
[0097] The Non-RT RIC 350 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 370. The Non-RT RIC 350 may be coupled to or may communicate with (such as via an A1 interface) the Near-RT RIC 370. The Near-RT RIC 370 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 310, one or more DUs 330, and / or an O-eNB with the Near-RT RIC 370.
[0098] In some aspects, to generate AI / ML models to be deployed in the Near-RT RIC 370, the Non-RT RIC 350 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 370 and may be received at the SMO Framework 360 or the Non-RT RIC 350 from non-network data sources or from network functions. In some examples, the Non-RT RIC 350 or the Near-RT RIC 370 may tune RAN behavior or performance. For example, the Non-RT RIC 350 may monitor long-term trends and patterns for performance and may employ AI / ML models to perform corrective actions via the SMO Framework 360 (such as reconfiguration via an O1 interface) or via creation of RAN management policies (such as A1 interface policies) .
[0099] As indicated above, Fig. 3 is provided as an example. Other examples may differ from what is described with regard to Fig. 3.
[0100] The network node 110, the controller / processor 240 of the network node 110, the UE 120, the controller / processor 280 of the UE 120, the CU 310, the DU 330, the RU 340, or any other component (s) of Figs. 1, 2, or 3 may implement one or more techniques or perform one or more operations associated with UE-side temporal beam prediction reporting, as described in more detail elsewhere herein. For example, the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, any other component (s) of Fig. 2, the CU 310, the DU 330, or the RU 340 may perform or direct operations of, for example, process 600 of Fig. 6, or other processes as described herein (alone or in conjunction with one or more other processors) . The memory 242 may store data and program codes for the network node 110, the network node 110, the CU 310, the DU 330, or the RU 340. The memory 282 may store data and program codes for the UE 120. In some examples, the memory 242 or the memory 282 may include a non-transitory computer-readable medium storing a set of instructions (for example, code or program code) for wireless communication. The memory 242 may include one or more memories, such as a single memory or multiple different memories (of the same type or of different types) . The memory 282 may include one or more memories, such as a single memory or multiple different memories (of the same type or of different types) . For example, the set of instructions, when executed (for example, directly, or after compiling, converting, or interpreting) by one or more processors of the network node 110, the UE 120, the CU 310, the DU 330, or the RU 340, may cause the one or more processors to perform process 600 of Fig. 6, 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.
[0101] In some aspects, the UE 120 includes means for selecting, from a plurality of prediction target resources, a set of K resources for which information is to be reported by the UE 120, the set of K resources being selected based at least in part on at least one of: predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources; and / or means for transmitting a temporal beam prediction report including the information associated with the set of K resources. Additionally, or alternatively, the UE 120 includes means for selecting a quantization format to be used for reporting information associated with for a set of K resources selected from a plurality of prediction target resources; and / or means for transmitting a temporal beam prediction report including an indication of the quantization format and the information associated with the set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format. The means for the UE 120 to perform operations described herein may include, for example, one or more of communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.
[0102] In some aspects, the network node 110 includes means for transmitting a configuration associated with a UE selection of a set of K resources, from a plurality of prediction target resources, for which information is to be reported by the UE, wherein the configuration indicates that the UE 120 is to select the set of K resources based at least in part on at least one of: predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources; and / or means for receiving a temporal beam prediction report including the information associated with the set of K resources. Additionally, or alternatively, the network node 110 includes means for receiving a temporal beam prediction report including an indication of a quantization format and information associated with a set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format; and / or means for interpreting the information associated with the set of K resources according to the quantization format indicated in the temporal beam prediction report. The means for the network node 110 to perform operations described herein may include, for example, one or more of communication manager 150, transmit processor 214, TX MIMO processor 216, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller / processor 240, memory 242, or scheduler 246.
[0103] As indicated above, Fig. 3 is provided as an example. Other examples may differ from what is described with regard to Fig. 3.
[0104] Fig. 4 is a diagram illustrating an example 400 of an AI / ML based beam management, in accordance with the present disclosure. As shown in Fig. 4, an AI / ML model 410 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 410 may enable the UE 120 to determine one or more inferences or predictions based on data input to the AI / ML model 410.
[0105] For example, as shown by reference number 415, an input to the AI / ML model 410 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 410 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.
[0106] As shown by reference number 420, the AI / ML model 410 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.
[0107] As another example, an output of the AI / ML model 410 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 410. This may enable the AI / ML model 410 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 410, 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.
[0108] 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 410 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 410 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.
[0109] In some aspects, the techniques and apparatuses described herein for UE-side temporal beam prediction reporting can be implemented so as to improve AI / ML based beam predictions at a UE as described with respect to Fig. 4.
[0110] As indicated above, Fig. 4 is provided as an example. Other examples may differ from what is described with regard to Fig. 4.
[0111] Fig. 5 is a diagram illustrating an example 500 associated with UE-side temporal beam prediction reporting, in accordance with the present disclosure. As shown in Fig. 5, example 500 includes communication between a network node 110 and a UE 120. In some aspects, the network node 110 and the UE 120 may be included in a wireless network, such as wireless network 100. The network node 110 and the UE 120 may communicate via a wireless access link, which may include an uplink and a downlink.
[0112] As shown at reference 502, the UE 120 may generate predicted channel characteristic information associated with a plurality of prediction target resources. For example, the UE 120 may perform measurements on a set of measurement resources (e.g., Set B beams) to determine measurement information associated with the set of measurement resources. The UE 120 may provide the measurement information as an input to an AI / ML beam prediction model, and may receive predicted channel characteristic information, associated with a plurality of prediction target resources (e.g., Set A beams) , as an output of the AI / ML model. Here, the predicted channel characteristic information may include, for a given prediction target resource, a predicted channel characteristic (e.g., a predicted RSRP, a predicted signal-to-interference-plus-noise ratio (SINR) , or the like) for each prediction instance in a plurality of prediction instances, where each prediction instance corresponds to a respective future time period (e.g., a slot, a symbol, or the like) .
[0113] As shown at reference 504, the UE 120 may select, from the plurality of prediction target resources, a set of K resources for which information is to be reported by the UE 120.
[0114] In some aspects, the UE 120 may select the set of K resources based at least in part on predicted channel characteristic information (e.g., predicted RSRPs, predicted SINRs, or the like) associated with the plurality of prediction target resources. In some aspects, for a given prediction target resource, the predicted channel characteristic information may include information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource. That is, the UE 120 may in some aspects select the set of K resources based at least in part on predicted channel characteristic information for all prediction instances associated with a temporal beam prediction report that is to include information associated with the selected set of K resources. Additionally, or alternatively, the UE 120 may select the set of K resources based at least in part on current or historical measurement information associated with the plurality of prediction target resources. That is, the UE 120 may in some aspects select the set of K resources based at least in part on current or past measurements associated with the plurality of prediction target resources.
[0115] In some aspects, the UE 120 may select the set of K resources based at least in part on a plurality of average values. For example, in some aspects, the UE 120 may compute a plurality of average values, each being associated with a respective prediction target resource in the plurality of prediction target resources. The UE 120 may then select the set of K resources based at least in part on the plurality of average values. For example, the UE 120 may select the set of K resources as the K resources that have the highest average values. In some aspects, the plurality of average values may be a plurality of weighted average values. Thus, in some aspects, the UE 120 may select the set of K resources based at least in part on a (weighted) average of one or more channel characteristics (e.g., predicted RSRPs, predicted SINRs, measured RSRPs, measured SINRs, or the like) among the plurality of prediction target resources.
[0116] In some aspects, the UE 120 may compute an average value in the plurality of average values based at least in part on the predicted channel characteristic information. That is, in some aspects, the UE 120 may compute an average value (e.g., a weighted average value) based at least in part on predicted channel characteristics (e.g., predicted RSRPs, predicted SINRs, or the like) for the plurality of prediction instances associated with the temporal beam prediction report to be transmitted by the UE 120. In such an implementation, the UE 120 may compute an average value, of the one or more average values, such that an item of predicted channel characteristic information corresponding to an earlier-in-time prediction instance of the plurality of prediction instances has a higher weight than an item of predicted channel characteristic information corresponding to a later-in-time prediction instance of the plurality of prediction instances. That is, in some aspects, predicted channel characteristic information associated with an earlier prediction instance (e.g., a first-in-time) may have larger weight than predicted channel characteristic information associated with other prediction instances with respect to selection of the set of K resources.
[0117] Additionally, or alternatively, the UE 120 may compute an average value in the plurality of average values based at least in part on the current or historical measurement information associated with the plurality of prediction target resources. That is, in some aspects, the UE 120 may compute an average value (e.g., a weighted average value) based at least in part on measured channel characteristics (e.g., measured RSRPs, measured SINRs, or the like) . In such an implementation, the UE 120 may compute an average value such that an item of current or historical measurement information corresponding to a later-in-time measurement has a higher weight than an item of current historical measurement information corresponding to an-earlier in-time measurement. That is, in some aspects, current or historical measurement information associated with a later-measured value (e.g., a most recent measured value) may have larger weight than values measured at earlier times with respect to selection of the set of K resources.
[0118] In some aspects, the UE 120 may compute an average value in the plurality of average values according to a configuration that is predefined on the UE 120. That is, in some aspects, an averaging technique implemented by the UE 120 (e.g., weights for computing weighted averages) or temporal filtering performed by the UE 120 may be predefined on the UE 120 (e.g., according to an application wireless communication standard) .
[0119] Additionally, or alternatively, the UE 120 may compute an average value in the plurality of average values according to a configuration received from the network node 110. That is, in some aspects, an averaging technique implemented by the UE 120 (e.g., weights for computing weighted averages) or temporal filtering performed by the UE 120 may be at least partially configured by the network node 110. In some aspects, such a configuration may be provided in, for example, a CSI report setting. Thus, in some aspects, the network node 110 may transmit, and the UE 120 may receive, a configuration that at least partially indicates a manner in which the UE 120 is to compute one or more average values to be used in association with selecting the set of K resources.
[0120] Additionally, or alternatively, the UE 120 may compute an average value in the plurality of average values according to a configuration based at least in part on a configuration that is selected by the UE 120. That is, in some aspects, an averaging technique implemented by the UE 120 (e.g., weights for computing weighted averages) or temporal filtering performed by the UE 120 may be selected (autonomously) by the UE 120.
[0121] In some aspects, the selection technique used by the UE 120 for selection of the set of K resources may be indicated by the network node 110. For example, in some aspects, the UE 120 may be (pre-) configured with a plurality of candidate selection techniques. In one example, a first candidate selection technique may indicate that the UE 120 is to select the K best overall prediction target resources based on plain averaging (e.g., in the decibel (dB) domain) of predicted RSRPs among all prediction instances associated with the temporal beam prediction report. A second candidate selection technique may indicate that the UE 120 is to select the K best overall resources based on predicted RSRPs associated with prediction instances that are closest-in-time to an upcoming transmission of the temporal beam prediction report. A third candidate selection technique may indicate that the UE 120 is to select the K best overall resources based on UE implementation (e.g., a manner selected or otherwise determined by the UE 120) . In this example, the network node 110 may transmit, and the UE 120 may receive, a configuration indicating a selection technique from the plurality of candidate selection techniques, and the UE 120 may select the set of K resources according to the selection technique indicated by the configuration. In this way, the UE 120 may select the set of K resources based at least in part on an indication that identifies one of a plurality of predefined selection options, with the indication being provided by the network node 110.
[0122] Additionally, or alternatively, the selection technique used by the UE 120 for selection of the set of K resources may be predefined on the UE 120. Additionally, or alternatively, the selection technique used by the UE 120 for selection of the set of K resources may be selected by the UE 120. For example, the UE 120 may select the selection technique from among a plurality of candidate selection techniques according to a UE implementation.
[0123] As shown at reference 506, the UE 120 may transmit, and the network node 110 may receive, a temporal beam prediction report including the information associated with the set of K resources. In some aspects, the information associated with the set of K resources may indicate predicted channel characteristic information (e.g., a predicted RSRP, a predicted SINR, or the like) for one or more resources in the set of K resources (e.g., each resource in the set of K resources) across all prediction instances in the plurality of prediction instances. In some aspects, the information associated with the set of K resources is quantized in the temporal beam prediction report according to a quantization format selected by the UE 120, as described in further detail below with respect to Fig. 6.
[0124] Notably, the selection of the set of K resources in the manner described above (e.g., using (weighted) average values) enables a reduction in overhead by eliminating a need for predicted channel characteristic information for a given resource to include predicted channel characteristic information for each prediction instance individually. For example, the predicted channel characteristic may include the (weighted) average value that is associated with the plurality of prediction instances, thereby reducing overhead in the temporal beam prediction report (e.g., as compared to reporting predicted channel characteristic information for each prediction instance) . In this way, selection of the set of K resources in the manner described herein can reduce overhead associated with temporal beam prediction reporting and, furthermore, reduce wastage of network resources.
[0125] As indicated above, Fig. 5 is provided as an example. Other examples may differ from what is described with respect to Fig. 5.
[0126] Fig. 6 is a diagram illustrating an example 600 associated with UE-side temporal beam prediction reporting, in accordance with the present disclosure. As shown in Fig. 6, example 600 includes communication between a network node 110 and a UE 120. In some aspects, the network node 110 and the UE 120 may be included in a wireless network, such as wireless network 100. The network node 110 and the UE 120 may communicate via a wireless access link, which may include an uplink and a downlink.
[0127] As shown at reference 602, the UE 120 may select a quantization format to be used for reporting information associated with for a set of K resources selected from a plurality of prediction target resources. In some aspects, the set of K resources may be resources, from a plurality of prediction target resources, for which information is to be reported by the UE 120 in a temporal beam prediction report. In some aspects, the set of K resources may be resources selected by the UE 120 in a manner similar to that described above with respect to Fig. 5 or in another manner.
[0128] In some aspects, the information associated with the set of K resources may include differential values. For example, the information associated with the set of K resources may include predicted channel characteristic information associated with a particular resource in the set of K resources (e.g., a predicted RSRP of a best beam) and differential values associated with one or more other resources in the set of K resources, (e.g., each differential value indicating a difference between the predicted RSRP of the best beam and a predicted RSRP of a respective other beams in a set of K beams) . In some aspects, the use of differential values reduces overhead associated with in the temporal beam prediction report. Further, quantization of the information associated with the set of K resources (including the differential values) can be performed so as to control or improve accuracy or resolution. Thus, in some aspects, the information associated with the set of K resources includes one or more differential values that are quantized (according to the quantization format selected by the UE 120) .
[0129] A quantization format is a format used for quantizing the information associated with the set of K resources. A given quantization format may use, for example, a particular quantization range, a particular quantization resolution, or a particular type of quantization. Thus, in some aspects, a quantization format may indicate a range of quantization, a resolution of quantization, or a type of quantization used by the UE 120 for quantization of the information associated with the set of K resources. In some aspects, the UE 120 selects the quantization format, meaning that the UE 120 selects the range of quantization, the resolution of quantization, or the type of quantization. In some aspects, the UE 120 selects the quantization format based at least in part on the information associated with the set of K resources (i.e., the UE 120 may select the quantization format based at least in part on one or more characteristics of the information that needs to be reported in the temporal beam prediction report) .
[0130] In some aspects, a manner in which the UE 120 selects the quantization format is based at least in part on unquantized values of temporal differential values included in the information associated with the set of K beams. For example, the UE 120 may be configured to select a standard deviation (e.g., associated with nonlinear quantization of temporal differentials) or quantization steps to be used in association with quantizing the information associated with the set of K resources based at least in part on maximizing precision of values indicated in the temporal beam prediction report (e.g., based on unquantized values of temporal differentials) .
[0131] Alternatively, the manner in which the UE 120 selects the quantization format is based at least in part on estimated confidence levels for the information associated with the set of K beams. For example, the UE 120 may be configured to select a standard deviation (e.g., associated with nonlinear quantization of temporal differentials) or quantization steps to be used in association with quantizing the information associated with the set of K resources based at least in part on estimated confidence levels associated with the set of K resources. In one particular example, if differential values associated with the set of K resources (e.g., determined based on UE-side temporal prediction) are Gaussian parameters with a small (e.g., less than 1 dB differential) mean and large (e.g., greater than 5 dB) standard deviation, the UE 120 may select a quantization format (e.g., a quantization range) based at least in part on the larger value (which indicates a low perceived accuracy) .
[0132] In some aspects, the manner in which the UE 120 selects the quantization format is based at least in part on a configuration received from a network node. That is, in some aspects, the network node 110 may transmit, and the UE 120 may receive, a configuration indicating the manner in which the UE 120 is to select the quantization format to be applied by the UE 120 for reporting information associated with the set of K resources in the temporal beam prediction report. In one example, the configuration may indicate whether the UE 120 is to select the quantization format is based at least in part on unquantized values of temporal differential values included in the information associated with the set of K beams or based at least in part on estimated confidence levels for the information associated with the set of K beams.
[0133] As shown at reference 604, the UE 120 may transmit, and the network node 110 may receive, a temporal beam prediction report including an indication of the quantization format and the information associated with the set of K resources, with the information associated with the set of K resources being quantized in the temporal beam prediction report according to the quantization format. That is, the UE 120 may transmit, and the network node 110 may receive, a temporal beam prediction report including (1) an indication of how the UE 120 quantized the information associated with the set of K resources and (2) the information associated with the set of K resources, which has been quantized according to the identified quantization format.
[0134] In some aspects, the UE 120 applies the quantization format (e.g., a range of quantization, a resolution of quantization, a type of quantization, or the like) to differential values included in the information associated with the set of K resources. A differential value may indicate, for example, a difference between a predicted channel characteristic associated with an Nth in-time prediction instance and a predicted channel characteristic for a first (in-time) prediction instance for a resource in the set of K resources. As another example, a differential value may indicate a difference between a predicted channel characteristic associated with a pair of consecutive prediction instances for a resource in the set of K resources. As another example, a differential value may indicate a difference between a predicted channel characteristic associated with a kth resource of the set of K resources and a best resource of the set of K resources for a given prediction instance (e.g., a first-in-time prediction instance) . In some aspects, a range of quantization or a resolution of quantization selected by the UE 120 may depend on the type of differential value used (e.g., the range of quantization or the resolution of quantization differ depending on the type of quantization selected by the UE 120) .
[0135] In some aspects, the indication of the quantization format is carried in a bitfield of the temporal beam prediction report. Here, the bitfield may indicate a manner in which other bitfields of the temporal beam prediction report are to be interpreted. For example, the bitfield may indicate a step size of quantization for the differential values. As another example, the bitfield may indicate whether linear quantization of differential values is used in the temporal beam prediction report or nonlinear quantization of differential values (e.g., in the dB domain) is used in the temporal beam prediction report. As another example, the bitfield may indicate a standard deviation of the differential values (e.g., across multiple predication instances associated with the temporal beam prediction report, for a given resource) .
[0136] In some aspects, the quantization format indicates that the UE 120 is to use nonlinear quantization of differential values that is based on a cumulative distribution function (CDF) of a Gaussian distribution and an indicated standard deviation. According to such a quantization format, the UE 120 may indicate the standard deviation σ of the differential values for different prediction instances, and quantization may be performed using a set of bits (e.g., two bits) that indicate one of a plurality of outcomes (e.g., one of four outcomes for a given differential value DV –DV < -σ, -σ < DV < 0, 0 < DV < σ, or DV > σ) . Here, the standard deviation σ may differ depending on a distance in the time domain (e.g., σ for a k’th time instance may be equal to sqrt (k) ×*σ) .
[0137] As shown at reference 606, the network node 110 may interpret the information associated with the set of K resources according to the quantization format indicated in the temporal beam prediction report. That is, the network node 110 may determine the quantization format based at least in part on the indication of the quantization format included in the temporal beam prediction report, and may interpret the information associated with the set of K resources included in the temporal beam prediction report based at least in part on the indicated quantization format.
[0138] In this way, the UE 120 may select and implement a quantization format to be used for reporting information associated with the set of K resources in a temporal beam prediction report. As a result, overhead can be reduced, while improving accuracy or resolution associated with the information provided in the temporal beam prediction report.
[0139] As indicated above, Fig. 6 is provided as an example. Other examples may differ from what is described with respect to Fig. 6.
[0140] Fig. 7 is a diagram illustrating an example process 700 performed, for example, at a UE or an apparatus of a UE, in accordance with the present disclosure. Example process 700 is an example where the apparatus or the UE (e.g., UE 120) performs operations associated with UE-side temporal beam prediction reporting.
[0141] As shown in Fig. 7, in some aspects, process 700 may include selecting, from a plurality of prediction target resources, a set of K resources for which information is to be reported by the UE, the set of K resources being selected based at least in part on at least one of: predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources (block 710) . For example, the UE (e.g., using communication manager 1106, depicted in Fig. 11) may select, from a plurality of prediction target resources, a set of K resources for which information is to be reported by the UE, the set of K resources being selected based at least in part on at least one of: predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources, as described above.
[0142] As further shown in Fig. 7, in some aspects, process 700 may include transmitting a temporal beam prediction report including the information associated with the set of K resources (block 720) . For example, the UE (e.g., using transmission component 1104 and / or communication manager 1106, depicted in Fig. 11) may transmit a temporal beam prediction report including the information associated with the set of K resources, as described above.
[0143] Process 700 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.
[0144] In a first aspect, selecting the set of K resources comprises computing a plurality of average values, wherein each average value in the plurality of average values is associated with a respective prediction target resource in the plurality of prediction target resources, and selecting the set of K resources based at least in part on the plurality of average values.
[0145] In a second aspect, alone or in combination with the first aspect, the plurality of average values comprises a plurality of weighted average values.
[0146] In a third aspect, alone or in combination with one or more of the first and second aspects, one or more average values in the plurality of average values are computed based at least in part on the predicted channel characteristic information.
[0147] In a fourth aspect, alone or in combination with one or more of the first through third aspects, an average value, of the one or more average values, is computed such that an item of predicted channel characteristic information corresponding to an earlier-in-time prediction instance of the plurality of prediction instances has a higher weight than an item of predicted channel characteristic information corresponding to a later-in-time prediction instance of the plurality of prediction instances.
[0148] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, one or more average values in the plurality of average values are computed based at least in part on the current or historical measurement information.
[0149] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, an average value, of the one or more average values, is computed such that an item of current or historical measurement information corresponding to a later-in-time measurement has a higher weight than an item of current historical measurement information corresponding to an-earlier in-time measurement.
[0150] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, average values in the plurality of average values are computed according to a configuration that is predefined on the UE.
[0151] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, average values in the plurality of average values are computed based at least in part on a configuration received from a network node.
[0152] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, average values in the plurality of average values are computed based at least in part on a configuration that is selected by the UE.
[0153] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, process 700 includes receiving a configuration indicating a selection technique from a plurality of candidate selection techniques, wherein resources in the set of K resources are selected according to the indicated selection technique.
[0154] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, a prediction target resource, in the plurality of prediction target resources, corresponds to a beam in a plurality of beams associated with time-domain beam prediction.
[0155] Although Fig. 7 shows example blocks of process 700, in some aspects, process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 7. Additionally, or alternatively, two or more of the blocks of process 700 may be performed in parallel.
[0156] Fig. 8 is a diagram illustrating an example process 800 performed, for example, at a network node or an apparatus of a network node, in accordance with the present disclosure. Example process 800 is an example where the apparatus or the network node (e.g., network node 110) performs operations associated with UE-side temporal beam prediction reporting.
[0157] As shown in Fig. 8, in some aspects, process 800 may include transmitting a configuration associated with a UE selection of a set of K resources, from a plurality of prediction target resources, for which information is to be reported by the UE, wherein the configuration indicates that the UE is to select the set of K resources based at least in part on at least one of: predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources (block 810) . For example, the network node (e.g., using transmission component 1204 and / or communication manager 1206, depicted in Fig. 12) may transmit a configuration associated with a UE selection of a set of K resources, from a plurality of prediction target resources, for which information is to be reported by the UE, wherein the configuration indicates that the UE is to select the set of K resources based at least in part on at least one of: predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources, as described above.
[0158] As further shown in Fig. 8, in some aspects, process 800 may include receiving a temporal beam prediction report including the information associated with the set of K resources (block 820) . For example, the network node (e.g., using reception component 1202 and / or communication manager 1206, depicted in Fig. 12) may receive a temporal beam prediction report including the information associated with the set of K resources, as described above.
[0159] Process 800 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 configuration indicates a manner in which the UE is to compute a plurality of average values to be used in association with selecting the set of K resources from the plurality of prediction target resources.
[0161] In a second aspect, alone or in combination with the first aspect, the configuration indicates a selection technique from a plurality of candidate selection techniques, wherein resources in the set of K resources are to be selected from the plurality of prediction target resources according to the indicated selection technique.
[0162] In a third aspect, alone or in combination with one or more of the first and second aspects, a prediction target resource, in the plurality of prediction target resources, corresponds to a beam in a plurality of beams associated with time-domain beam prediction.
[0163] Although Fig. 8 shows example blocks of process 800, in some aspects, process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 8. Additionally, or alternatively, two or more of the blocks of process 800 may be performed in parallel.
[0164] 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 UE-side temporal beam prediction reporting.
[0165] As shown in Fig. 9, in some aspects, process 900 may include selecting a quantization format to be used for reporting information associated with for a set of K resources selected from a plurality of prediction target resources (block 910) . For example, the UE (e.g., using communication manager 1106, depicted in Fig. 11) may select a quantization format to be used for reporting information associated with for a set of K resources selected from a plurality of prediction target resources, as described above.
[0166] As further shown in Fig. 9, in some aspects, process 900 may include transmitting a temporal beam prediction report including an indication of the quantization format and the information associated with the set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format (block 920) . For example, the UE (e.g., using transmission component 1104 and / or communication manager 1106, depicted in Fig. 11) may transmit a temporal beam prediction report including an indication of the quantization format and the information associated with the set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format, as described above.
[0167] 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.
[0168] In a first aspect, the quantization format indicates at least one of a range of quantization, a resolution of quantization, or a type of quantization.
[0169] In a second aspect, alone or in combination with the first aspect, the information associated with the set of K resources includes one or more differential values that are quantized according to the quantization format.
[0170] In a third aspect, alone or in combination with one or more of the first and second aspects, the indication of the quantization format is carried in a bitfield of the temporal beam prediction report, wherein the bitfield indicates a manner in which bitfields of the temporal beam prediction report associated with differential values are to be interpreted.
[0171] In a fourth aspect, alone or in combination with one or more of the first through third aspects, the bitfield indicates at least one of a step size of quantization for the differential values, whether linear quantization of differential values is used in the temporal beam prediction report or nonlinear quantization of differential values is used in the temporal beam prediction report, or a standard deviation of the differential values.
[0172] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the quantization format indicates that the UE is use nonlinear quantization of differential values that is based at least in part on a CDF of a Gaussian distribution and an indicated standard deviation.
[0173] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, a manner in which the quantization format is selected based at least in part on unquantized values of temporal differential values included in the information associated with the set of K beams.
[0174] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, a manner in which the quantization format is selected based at least in part on estimated confidence levels for the information associated with the set of K beams.
[0175] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, a manner in which the quantization format is selected based at least in part on a configuration received from a network node.
[0176] 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.
[0177] Fig. 10 is a diagram illustrating an example process 1000 performed, for example, at a network node or an apparatus of a network node, in accordance with the present disclosure. Example process 1000 is an example where the apparatus or the network node (e.g., network node 110) performs operations associated with UE-side temporal beam prediction reporting.
[0178] As shown in Fig. 10, in some aspects, process 1000 may include receiving a temporal beam prediction report including an indication of a quantization format and information associated with a set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format (block 1010) . For example, the network node (e.g., using reception component 1202 and / or communication manager 1206, depicted in Fig. 12) may receive a temporal beam prediction report including an indication of a quantization format and information associated with a set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format, as described above.
[0179] As further shown in Fig. 10, in some aspects, process 1000 may include interpreting the information associated with the set of K resources according to the quantization format indicated in the temporal beam prediction report (block 1020) . For example, the network node (e.g., using communication manager 1206, depicted in Fig. 12) may interpret the information associated with the set of K resources according to the quantization format indicated in the temporal beam prediction report, as described above.
[0180] 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.
[0181] In a first aspect, the quantization format indicates at least one of a range of quantization, a resolution of quantization, or a type of quantization.
[0182] In a second aspect, alone or in combination with the first aspect, the information associated with the set of K resources includes one or more differential values that are quantized according to the quantization format.
[0183] In a third aspect, alone or in combination with one or more of the first and second aspects, the indication of the quantization format is carried in a bitfield of the temporal beam prediction report, wherein the bitfield indicates a manner in which bitfields of the temporal beam prediction report associated with differential values are to be interpreted.
[0184] In a fourth aspect, alone or in combination with one or more of the first through third aspects, the bitfield indicates at least one of a step size of quantization for the differential values, whether linear quantization of differential values is used in the temporal beam prediction report or nonlinear quantization of differential values is used in the temporal beam prediction report, or a standard deviation of the differential values.
[0185] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the quantization format indicates that nonlinear quantization of differential values based at least in part on a CDF of a Gaussian distribution and an indicated standard deviation is used in the temporal beam prediction report.
[0186] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, process 1000 includes transmitting a configuration indicating the quantization format.
[0187] 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.
[0188] Fig. 11 is a diagram of an example apparatus 1100 for wireless communication, in accordance with the present disclosure. The apparatus 1100 may be a UE, or a UE may include the apparatus 1100. In some aspects, the apparatus 1100 includes a reception component 1102, a transmission component 1104, and / or a communication manager 1106, 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 1106 is the communication manager 140 described in connection with Fig. 1. As shown, the apparatus 1100 may communicate with another apparatus 1108, such as a UE or a network node (such as a CU, a DU, an RU, or a base station) , using the reception component 1102 and the transmission component 1104.
[0189] In some aspects, the apparatus 1100 may be configured to perform one or more operations described herein in connection with Figs. 5-6. Additionally, or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as process 700 of Fig. 7, process 900 of Fig. 9, or a combination thereof. In some aspects, the apparatus 1100 and / or one or more components shown in Fig. 11 may include one or more components of the UE described in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 11 may be implemented within one or more components described in connection with Fig. 2. 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.
[0190] The reception component 1102 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1108. The reception component 1102 may provide received communications to one or more other components of the apparatus 1100. In some aspects, the reception component 1102 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 1100. In some aspects, the reception component 1102 may include one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receive processors, one or more controllers / processors, one or more memories, or a combination thereof, of the UE described in connection with Fig. 2.
[0191] The transmission component 1104 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1108. In some aspects, one or more other components of the apparatus 1100 may generate communications and may provide the generated communications to the transmission component 1104 for transmission to the apparatus 1108. In some aspects, the transmission component 1104 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 1108. In some aspects, the transmission component 1104 may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or a combination thereof, of the UE described in connection with Fig. 2. In some aspects, the transmission component 1104 may be co-located with the reception component 1102 in one or more transceivers.
[0192] The communication manager 1106 may support operations of the reception component 1102 and / or the transmission component 1104. For example, the communication manager 1106 may receive information associated with configuring reception of communications by the reception component 1102 and / or transmission of communications by the transmission component 1104. Additionally, or alternatively, the communication manager 1106 may generate and / or provide control information to the reception component 1102 and / or the transmission component 1104 to control reception and / or transmission of communications.
[0193] The communication manager 1106 may select, from a plurality of prediction target resources, a set of K resources for which information is to be reported by the UE, the set of K resources being selected based at least in part on at least one of predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources. The transmission component 1104 may transmit a temporal beam prediction report including the information associated with the set of K resources. In some aspects, the reception component 1102 may receive a configuration indicating a selection technique from a plurality of candidate selection techniques, wherein resources in the set of K resources are selected according to the indicated selection technique.
[0194] The communication manager 1106 may select a quantization format to be used for reporting information associated with for a set of K resources selected from a plurality of prediction target resources. The transmission component 1104 may transmit a temporal beam prediction report including an indication of the quantization format and the information associated with the set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format.
[0195] The number and arrangement of components shown in Fig. 11 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. 11. Furthermore, two or more components shown in Fig. 11 may be implemented within a single component, or a single component shown in Fig. 11 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 11 may perform one or more functions described as being performed by another set of components shown in Fig. 11.
[0196] 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 network node, or a network node 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.
[0197] In some aspects, the apparatus 1200 may be configured to perform one or more operations described herein in connection with Figs. 5-6. Additionally, or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein, such as process 800 of Fig. 8, process 1000 of Fig. 10, 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 network node described in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 12 may be implemented within one or more components described in connection with Fig. 2. 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 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 (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , 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 antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receive processors, one or more controllers / processors, one or more memories, or a combination thereof, of the network node described in connection with Fig. 2. In some aspects, the reception component 1202 and / or the transmission component 1204 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 1200 via one or more communications links, such as a backhaul link, a midhaul link, and / or a fronthaul link.
[0199] 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 (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 1208. In some aspects, the transmission component 1204 may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or a combination thereof, of the network node described in connection with Fig. 2. In some aspects, the transmission component 1204 may be co-located with the reception component 1202 in one or more transceivers.
[0200] 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.
[0201] The transmission component 1204 may transmit a configuration associated with a UE selection of a set of K resources, from a plurality of prediction target resources, for which information is to be reported by the UE, wherein the configuration indicates that the UE is to select the set of K resources based at least in part on at least one of predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources. The reception component 1202 may receive a temporal beam prediction report including the information associated with the set of K resources.
[0202] The reception component 1202 may receive a temporal beam prediction report including an indication of a quantization format and information associated with a set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format. The communication manager 1206 may interpret the information associated with the set of K resources according to the quantization format indicated in the temporal beam prediction report. In some aspects, the transmission component 1204 may transmit a configuration indicating the quantization format.
[0203] 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.
[0204] The following provides an overview of some Aspects of the present disclosure:
[0205] Aspect 1: A method of wireless communication performed by a user equipment (UE) , comprising: selecting, from a plurality of prediction target resources, a set of K resources for which information is to be reported by the UE, the set of K resources being selected based at least in part on at least one of: predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources; and transmitting a temporal beam prediction report including the information associated with the set of K resources.
[0206] Aspect 2: The method of Aspect 1, wherein selecting the set of K resources comprises: computing a plurality of average values, wherein each average value in the plurality of average values is associated with a respective prediction target resource in the plurality of prediction target resources; and selecting the set of K resources based at least in part on the plurality of average values.
[0207] Aspect 3: The method of Aspect 2, wherein the plurality of average values comprises a plurality of weighted average values.
[0208] Aspect 4: The method of Aspect 2, wherein one or more average values in the plurality of average values are computed based at least in part on the predicted channel characteristic information.
[0209] Aspect 5: The method of Aspect 4, wherein an average value, of the one or more average values, is computed such that an item of predicted channel characteristic information corresponding to an earlier-in-time prediction instance of the plurality of prediction instances has a higher weight than an item of predicted channel characteristic information corresponding to a later-in-time prediction instance of the plurality of prediction instances.
[0210] Aspect 6: The method of Aspect 2, wherein one or more average values in the plurality of average values are computed based at least in part on the current or historical measurement information.
[0211] Aspect 7: The method of Aspect 6, wherein an average value, of the one or more average values, is computed such that an item of current or historical measurement information corresponding to a later-in-time measurement has a higher weight than an item of current historical measurement information corresponding to an-earlier in-time measurement.
[0212] Aspect 8: The method of Aspect 2, wherein average values in the plurality of average values are computed according to at least one of a configuration that is predefined on the UE, a configuration received from a network node, or a configuration that is selected by the UE.
[0213] Aspect 9: The method of any of Aspects 1-8, wherein a prediction target resource, in the plurality of prediction target resources, corresponds to a beam in a plurality of beams associated with time-domain beam prediction.
[0214] Aspect 10: The method of any of Aspects 1-9, further comprising receiving a configuration indicating a selection technique from a plurality of candidate selection techniques, wherein resources in the set of K resources are selected according to the indicated selection technique.
[0215] Aspect 11: A method of wireless communication performed by a network node, comprising: transmitting a configuration associated with a user equipment (UE) selection of a set of K resources, from a plurality of prediction target resources, for which information is to be reported by the UE, wherein the configuration indicates that the UE is to select the set of K resources based at least in part on at least one of: predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, or current or historical measurement information associated with the plurality of prediction target resources; and receiving a temporal beam prediction report including the information associated with the set of K resources.
[0216] Aspect 12: The method of Aspect 11, wherein the configuration indicates a manner in which the UE is to compute a plurality of average values to be used in association with selecting the set of K resources from the plurality of prediction target resources.
[0217] Aspect 13: The method of any of Aspects 11-12, wherein the configuration indicates a selection technique from a plurality of candidate selection techniques, wherein resources in the set of K resources are to be selected from the plurality of prediction target resources according to the indicated selection technique.
[0218] Aspect 14: The method of any of Aspects 11-13, wherein a prediction target resource, in the plurality of prediction target resources, corresponds to a beam in a plurality of beams associated with time-domain beam prediction.
[0219] Aspect 15: A method of wireless communication performed by a user equipment (UE) , comprising: selecting a quantization format to be used for reporting information associated with for a set of K resources selected from a plurality of prediction target resources; and transmitting a temporal beam prediction report including an indication of the quantization format and the information associated with the set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format.
[0220] Aspect 16: The method of Aspect 15, wherein the quantization format indicates at least one of a range of quantization, a resolution of quantization, or a type of quantization.
[0221] Aspect 17: The method of any of Aspects 15-16, wherein the information associated with the set of K resources includes one or more differential values that are quantized according to the quantization format.
[0222] Aspect 18: The method of any of Aspects 15-17, wherein the indication of the quantization format is carried in a bitfield of the temporal beam prediction report, wherein the bitfield indicates a manner in which bitfields of the temporal beam prediction report associated with differential values are to be interpreted.
[0223] Aspect 19: The method of Aspect 18, wherein the bitfield indicates at least one of: a step size of quantization for the differential values, whether linear quantization of differential values is used in the temporal beam prediction report or nonlinear quantization of differential values is used in the temporal beam prediction report, or a standard deviation of the differential values.
[0224] Aspect 20: The method of any of Aspects 15-19, wherein the quantization format indicates that the UE is use nonlinear quantization of differential values that is based at least in part on a cumulative distribution function (CDF) of a Gaussian distribution and an indicated standard deviation.
[0225] Aspect 21: The method of any of Aspects 15-20, wherein a manner in which the quantization format is selected based at least in part on unquantized values of temporal differential values included in the information associated with the set of K beams.
[0226] Aspect 22: The method of any of Aspects 15-21, wherein a manner in which the quantization format is selected based at least in part on estimated confidence levels for the information associated with the set of K beams.
[0227] Aspect 23: The method of any of Aspects 15-22, wherein a manner in which the quantization format is selected based at least in part on a configuration received from a network node.
[0228] Aspect 24: A method of wireless communication performed by a network node, comprising: receiving a temporal beam prediction report including an indication of a quantization format and information associated with a set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format; and interpreting the information associated with the set of K resources according to the quantization format indicated in the temporal beam prediction report.
[0229] Aspect 25: The method of Aspect 24, wherein the quantization format indicates at least one of a range of quantization, a resolution of quantization, or a type of quantization.
[0230] Aspect 26: The method of any of Aspects 24-25, wherein the information associated with the set of K resources includes one or more differential values that are quantized according to the quantization format.
[0231] Aspect 27: The method of any of Aspects 24-26, wherein the indication of the quantization format is carried in a bitfield of the temporal beam prediction report, wherein the bitfield indicates a manner in which bitfields of the temporal beam prediction report associated with differential values are to be interpreted.
[0232] Aspect 28: The method of Aspect 27, wherein the bitfield indicates at least one of: a step size of quantization for the differential values, whether linear quantization of differential values is used in the temporal beam prediction report or nonlinear quantization of differential values is used in the temporal beam prediction report, or a standard deviation of the differential values.
[0233] Aspect 29: The method of any of Aspects 24-28, wherein the quantization format indicates that nonlinear quantization of differential values based at least in part on a cumulative distribution function (CDF) of a Gaussian distribution and an indicated standard deviation is used in the temporal beam prediction report.
[0234] Aspect 30: The method of any of Aspects 24-29, further comprising transmitting a configuration indicating the quantization format.
[0235] Aspect 31: 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 1-30.
[0236] Aspect 32: 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 1-30.
[0237] Aspect 33: An apparatus for wireless communication, the apparatus comprising at least one means for performing the method of one or more of Aspects 1-30.
[0238] Aspect 34: 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 1-30.
[0239] Aspect 35: 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 1-30.
[0240] Aspect 36: 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 1-30.
[0241] Aspect 37: 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 1-30.
[0242] 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.
[0243] As used herein, the term “component” is intended to be broadly construed as hardware or a combination of hardware and at least one of software or firmware. “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. As used herein, a “processor” is implemented in hardware or a combination of hardware and software. 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 code 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.
[0244] 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.
[0245] 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) .
[0246] No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. Also, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more. ” 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 similar language is used. Also, as used herein, the terms “has, ” “have, ” “having, ” and 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) . Further, the phrase “based on” is intended to mean “based on or otherwise in association with” unless explicitly stated otherwise. 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” ) . It should be understood that “one or more” is equivalent to “at least one. ”
[0247] Even though particular combinations of features are recited in the claims or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combined in ways not specifically recited in the claims or disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set.
Claims
1.A user equipment (UE) for wireless communication, comprising:one or more memories; andone or more processors, coupled to the one or more memories, configured to cause the UE to:select, from a plurality of prediction target resources, a set of K resources for which information is to be reported by the UE, the set of K resources being selected based at least in part on at least one of:predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, orcurrent or historical measurement information associated with the plurality of prediction target resources; andtransmit a temporal beam prediction report including the information associated with the set of K resources.2.The UE of claim 1, wherein the one or more processors, to cause the UE to select the set of K resources, are configured to cause the UE to:compute a plurality of average values, wherein each average value in the plurality of average values is associated with a respective prediction target resource in the plurality of prediction target resources; andselect the set of K resources based at least in part on the plurality of average values.3.The UE of claim 2, wherein the plurality of average values comprises a plurality of weighted average values.4.The UE of claim 2, wherein one or more average values in the plurality of average values are computed based at least in part on the predicted channel characteristic information.5.The UE of claim 4, wherein an average value, of the one or more average values, is computed such that an item of predicted channel characteristic information corresponding to an earlier-in-time prediction instance of the plurality of prediction instances has a higher weight than an item of predicted channel characteristic information corresponding to a later-in-time prediction instance of the plurality of prediction instances.6.The UE of claim 2, wherein one or more average values in the plurality of average values are computed based at least in part on the current or historical measurement information.7.The UE of claim 6, wherein an average value, of the one or more average values, is computed such that an item of current or historical measurement information corresponding to a later-in-time measurement has a higher weight than an item of current historical measurement information corresponding to an-earlier in-time measurement.8.The UE of claim 2, wherein average values in the plurality of average values are computed according to at least one of a configuration that is predefined on the UE, a configuration received from a network node, or a configuration that is selected by the UE.9.The UE of claim 1, wherein the one or more processors are further configured to cause the UE to receive a configuration indicating a selection technique from a plurality of candidate selection techniques, wherein resources in the set of K resources are selected according to the indicated selection technique.10.The UE of claim 1, wherein a prediction target resource, in the plurality of prediction target resources, corresponds to a beam in a plurality of beams associated with time-domain beam prediction.11.A network node for wireless communication, comprising:one or more memories; andone or more processors, coupled to the one or more memories, configured to cause the network node to:transmit a configuration associated with a user equipment (UE) selection of a set of K resources, from a plurality of prediction target resources, for which information is to be reported by the UE, wherein the configuration indicates that the UE is to select the set of K resources based at least in part on at least one of:predicted channel characteristic information associated with the plurality of prediction target resources, wherein, for a given prediction target resource, the predicted channel characteristic information includes information associated with all prediction instances in a plurality of prediction instances associated with the given prediction target resource, orcurrent or historical measurement information associated with the plurality of prediction target resources; andreceive a temporal beam prediction report including the information associated with the set of K resources.12.The network node of claim 11, wherein the configuration indicates a manner in which the UE is to compute a plurality of average values to be used in association with selecting the set of K resources from the plurality of prediction target resources.13.The network node of claim 11, wherein the configuration indicates a selection technique from a plurality of candidate selection techniques, wherein resources in the set of K resources are to be selected from the plurality of prediction target resources according to the indicated selection technique.14.The network node of claim 11, wherein a prediction target resource, in the plurality of prediction target resources, corresponds to a beam in a plurality of beams associated with time-domain beam prediction.15.A user equipment (UE) for wireless communication, comprising:one or more memories; andone or more processors, coupled to the one or more memories, configured to cause the UE to:select a quantization format to be used for reporting information associated with for a set of K resources selected from a plurality of prediction target resources; andtransmit a temporal beam prediction report including an indication of the quantization format and the information associated with the set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format.16.The UE of claim 15, wherein the quantization format indicates at least one of a range of quantization, a resolution of quantization, or a type of quantization.17.The UE of claim 15, wherein the information associated with the set of K resources includes one or more differential values that are quantized according to the quantization format.18.The UE of claim 15, wherein the indication of the quantization format is carried in a bitfield of the temporal beam prediction report, wherein the bitfield indicates a manner in which bitfields of the temporal beam prediction report associated with differential values are to be interpreted.19.The UE of claim 18, wherein the bitfield indicates at least one of:a step size of quantization for the differential values,whether linear quantization of differential values is used in the temporal beam prediction report or nonlinear quantization of differential values is used in the temporal beam prediction report, ora standard deviation of the differential values.20.The UE of claim 15, wherein the quantization format indicates that the UE is use nonlinear quantization of differential values that is based at least in part on a cumulative distribution function (CDF) of a Gaussian distribution and an indicated standard deviation.21.The UE of claim 15, wherein a manner in which the quantization format is selected based at least in part on unquantized values of temporal differential values included in the information associated with the set of K beams.22.The UE of claim 15, wherein a manner in which the quantization format is selected based at least in part on estimated confidence levels for the information associated with the set of K beams.23.The UE of claim 15, wherein a manner in which the quantization format is selected based at least in part on a configuration received from a network node.24.A network node for wireless communication, comprising:one or more memories; andone or more processors, coupled to the one or more memories, configured to cause the network node to:receive a temporal beam prediction report including an indication of a quantization format and information associated with a set of K resources, wherein the information associated with the set of K resources is quantized in the temporal beam prediction report according to the quantization format; andinterpret the information associated with the set of K resources according to the quantization format indicated in the temporal beam prediction report.25.The network node of claim 24, wherein the quantization format indicates at least one of a range of quantization, a resolution of quantization, or a type of quantization.26.The network node of claim 24, wherein the information associated with the set of K resources includes one or more differential values that are quantized according to the quantization format.27.The network node of claim 24, wherein the indication of the quantization format is carried in a bitfield of the temporal beam prediction report, wherein the bitfield indicates a manner in which bitfields of the temporal beam prediction report associated with differential values are to be interpreted.28.The network node of claim 27, wherein the bitfield indicates at least one of:a step size of quantization for the differential values,whether linear quantization of differential values is used in the temporal beam prediction report or nonlinear quantization of differential values is used in the temporal beam prediction report, ora standard deviation of the differential values.29.The network node of claim 24, wherein the quantization format indicates that nonlinear quantization of differential values based at least in part on a cumulative distribution function (CDF) of a Gaussian distribution and an indicated standard deviation is used in the temporal beam prediction report.30.The network node of claim 24, wherein the one or more processors are further configured to cause the network node to transmit a configuration indicating the quantization format.
Citation Information
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