Device triggered beam measurement reporting
By sending a first report indicating predicted channel measurement by the UE and requesting a second report of actual channel measurement when a trigger condition is met, the shortcomings of UE channel characteristic reporting in the prior art are solved, the performance of the beam management process is improved and the complexity is reduced.
Patent Information
- Application Number
- CN202380093312.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-02-17
- Publication Date
- 2025-09-16
AI Technical Summary
In the prior art, when user equipment (UE) reports channel characteristics, there is a lack of an effective mechanism to request and send actual channel measurements, resulting in performance degradation and increased complexity in the beam management process.
The UE sends a first report indicating predicted channel measurement, determines whether a trigger condition is met, and requests to send a second report including actual channel measurement when the condition is met, and the network entity provides uplink resources to complete the report.
Improves the performance of the beam management process, reduces complexity and overhead, reduces latency, and provides more accurate channel measurement reporting.
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Figure CN120660375A_ABST
Abstract
Description
Technical Field
[0001] The following relates to wireless communications, including device-triggered beam measurement reporting. Background Art
[0002] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, etc. These systems can support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include fourth-generation (4G) systems (such as long-term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems) and fifth-generation (5G) systems (which may be referred to as new radio (NR) systems). These systems may employ techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform-spread orthogonal frequency division multiplexing (DFT-S-OFDM).
[0003] A wireless multiple-access communication system may include one or more network entities, each of which supports wireless communications for communication devices, which may be referred to as user equipment (UE). In some multiple-access communication systems, a network entity may perform a beam management procedure to identify beam pairs for wireless communications between the network entity and the UE. As part of the beam management procedure, the UE may report channel characteristics measured at the UE to the network entity. In some cases, existing techniques for reporting channel characteristics may be deficient. Summary of the Invention
[0004] The described technology relates to improved methods, systems, devices, and apparatuses for supporting device-triggered beam measurement reporting. For example, the described technology provides one or more frameworks for event-triggered measurement reporting. In some examples, a UE may send a first report to a network entity. The first report may indicate a predicted channel measurement associated with a reference signal resource. Additionally, the UE may determine that the predicted channel measurement meets a trigger condition. Based on the predicted channel measurement meeting the trigger condition, the UE may include a request in the first report. For example, the request may be to send a second report indicating an actual channel measurement associated with the predicted channel measurement. The UE may receive a grant from the network entity in response to the request. The grant may indicate uplink resources that the UE can use to send the second report.
[0005] A method for wireless communication at a UE is described. The method may include: sending a first report to a network entity, the first report indicating a predicted channel measurement associated with a reference signal resource; determining that the predicted channel measurement satisfies a trigger condition, wherein the first report indicates a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement based on the predicted channel measurement satisfying the trigger condition; and receiving, from the network entity in response to the request, a grant of at least uplink resources for sending the second report.
[0006] An apparatus for wireless communication at a user equipment terminal (UE) is described. The apparatus may include: a processor; a memory coupled to the processor; and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: send a first report to a network entity, the first report indicating a predicted channel measurement associated with a reference signal resource; determine that the predicted channel measurement satisfies a trigger condition, wherein the first report indicates a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement based on the predicted channel measurement satisfying the trigger condition; and receive, from the network entity, a grant of at least uplink resources for sending the second report in response to the request.
[0007] Another apparatus for wireless communication at a UE is described. The apparatus may include: means for sending a first report to a network entity, the first report indicating a predicted channel measurement associated with a reference signal resource; means for determining that the predicted channel measurement satisfies a trigger condition, wherein the first report indicates a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement based on the predicted channel measurement satisfying the trigger condition; and means for receiving, from the network entity in response to the request, a grant of at least uplink resources for sending the second report.
[0008] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to: send a first report to a network entity, the first report indicating a predicted channel measurement associated with a reference signal resource; determine that the predicted channel measurement satisfies a trigger condition, wherein the first report indicates a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement based on the predicted channel measurement satisfying the trigger condition; and receive, from the network entity in response to the request, a grant of at least uplink resources for sending the second report.
[0009] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending the first report may include operations, features, components, or instructions for sending the first report during a first duration, wherein the predicted channel measurement may be associated with a second duration following the first duration.
[0010] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for: receiving, from the network entity, a reference signal sent using a second reference signal resource associated with the reference signal resource; and using the uplink resource to send, to the network entity, the second report indicating the actual channel measurement associated with the predicted channel measurement, wherein the actual channel measurement may be of the reference signal.
[0011] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the reference signal resource comprises a virtual resource, and the second reference signal resource comprises a channel measurement resource (CMR).
[0012] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for identifying the trigger condition, wherein determining that the predicted channel measurement satisfies the trigger condition may be based on identifying the trigger condition.
[0013] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving an indication of the triggering condition from the network entity, wherein identifying the triggering condition may be based on the received indication.
[0014] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending an indication of the identified triggering condition to the network entity.
[0015] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, determining that the predicted channel measurement satisfies the trigger condition may include operations, features, components, or instructions for determining that a difference between the predicted channel measurement and a second predicted channel measurement associated with a second reference signal resource satisfies a threshold, wherein the predicted channel measurement and the second predicted channel measurement may be associated with the same duration.
[0016] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first report indicates a set of multiple actual channel measurements that may be associated with a set of multiple reference signal resources that includes the second reference signal resource, and the second reference signal resource corresponds to the strongest channel measurement in the set of multiple actual channel measurements.
[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second reference signal resource corresponds to a transmission configuration indicator (TCI) state associated with a previously scheduled physical downlink control channel (PDCCH) transmission or a previously scheduled physical downlink shared channel (PDSCH) transmission.
[0018] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, determining that the predicted channel measurement satisfies the trigger condition may include operations, features, components, or instructions for determining that a confidence level associated with the predicted channel measurement satisfies a threshold.
[0019] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first report includes a bitmap or a combination index indicating the request.
[0020] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first report comprises a periodic channel state information (CSI) report, and the second report comprises an aperiodic CSI report.
[0021] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the reference signal resource includes a CMR.
[0022] A method for wireless communication at a UE is described. The method may include: sending a first report to a network entity, the first report indicating at least a first predicted channel measurement associated with a first reference signal resource in a set of reference signal resources; determining whether the first predicted channel measurement meets a trigger condition; and sending a second report to the network entity, the second report indicating a first channel measurement associated with the first reference signal resource and indicating whether the first channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement meets the trigger condition.
[0023] An apparatus for wireless communication at a UE is described. The apparatus may include: a processor; a memory coupled to the processor; and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: send a first report to a network entity, the first report indicating at least a first predicted channel measurement associated with a first reference signal resource in a set of reference signal resources; determine whether the first predicted channel measurement meets a trigger condition; and send a second report to the network entity, the second report indicating a first channel measurement associated with the first reference signal resource and indicating whether the first channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement meets the trigger condition.
[0024] Another apparatus for wireless communication at a UE is described. The apparatus may include: means for sending a first report to a network entity, the first report indicating at least a first predicted channel measurement associated with a first reference signal resource in a set of reference signal resources; means for determining whether the first predicted channel measurement satisfies a trigger condition; and means for sending a second report to the network entity, the second report indicating a first channel measurement associated with the first reference signal resource and indicating whether the first channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement satisfies the trigger condition.
[0025] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to: send a first report to a network entity, the first report indicating at least a first predicted channel measurement associated with a first reference signal resource in a set of reference signal resources; determine whether the first predicted channel measurement meets a trigger condition; and send a second report to the network entity, the second report indicating a first channel measurement associated with the first reference signal resource and indicating whether the first channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement meets the trigger condition.
[0026] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, determining whether the first predicted channel measurement satisfies the trigger condition may include operations, features, components, or instructions for determining that the first predicted channel measurement fails to satisfy the trigger condition, wherein based on the first predicted channel measurement failing to satisfy the trigger condition, the second report indicates that the first channel measurement includes the first actual channel measurement.
[0027] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, determining whether the first predicted channel measurement satisfies the trigger condition may include operations, features, components, or instructions for determining that the first predicted channel measurement satisfies the trigger condition, wherein based on the first predicted channel measurement satisfying the trigger condition, the second report indicates that the first channel measurement includes the second predicted channel measurement.
[0028] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending the second report may include operations, features, components, or instructions for sending a bit indicating whether the set of channel measurements includes predicted channel measurements or actual channel measurements.
[0029] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending the second report may include operations, features, components, or instructions for: sending a first indication of whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement; and sending a second indication of whether the second channel measurement includes a third predicted channel measurement or a second actual channel measurement.
[0030] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first indication includes a first bit or first combination index associated with the first channel measurement, and the second indication includes a second bit or second combination index associated with the second channel measurement.
[0031] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, determining whether the first predicted channel measurement satisfies the trigger condition may include operations, features, components, or instructions for determining that a confidence level associated with the first predicted channel measurement satisfies a threshold.
[0032] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for identifying the trigger condition, wherein determining that the first predicted channel measurement satisfies the trigger condition may be based on identifying the trigger condition.
[0033] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for receiving an indication of the triggering condition from the network entity, wherein identifying the triggering condition may be based on the received indication.
[0034] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending an indication of the identified triggering condition to the network entity.
[0035] A method for wireless communication at a network entity is described. The method may include obtaining a first report indicating a predicted channel measurement and a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement, wherein the predicted channel measurement is associated with a reference signal resource and the request is based on the predicted channel measurement satisfying a trigger condition; outputting a grant of at least uplink resources to be used for sending the second report in response to the request; and obtaining the second report indicating the actual channel measurement associated with the predicted channel measurement based on outputting the grant.
[0036] An apparatus for wireless communication at a network entity is described. The apparatus may include: a processor; a memory coupled to the processor; and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: obtain a first report indicating a predicted channel measurement and a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement, wherein the predicted channel measurement is associated with a reference signal resource and the request is based on the predicted channel measurement satisfying a trigger condition; output, in response to the request, a grant of at least uplink resources to be used for sending the second report; and obtain the second report indicating the actual channel measurement associated with the predicted channel measurement based on outputting the grant.
[0037] Another apparatus for wireless communication at a network entity is described. The apparatus may include: means for obtaining a first report indicating a predicted channel measurement and a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement, wherein the predicted channel measurement is associated with a reference signal resource, and wherein the request is based on the predicted channel measurement satisfying a trigger condition; means for outputting, in response to the request, a grant of at least uplink resources to be used for sending the second report; and means for obtaining the second report indicating the actual channel measurement associated with the predicted channel measurement based on outputting the grant.
[0038] A non-transitory computer-readable medium storing code for wireless communication at a network entity is described. The code may include instructions executable by a processor to: obtain a first report indicating a predicted channel measurement and a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement, wherein the predicted channel measurement is associated with a reference signal resource and the request is based on the predicted channel measurement satisfying a trigger condition; output, in response to the request, a grant of at least uplink resources to be used for sending the second report; and obtain the second report indicating the actual channel measurement associated with the predicted channel measurement based on outputting the grant.
[0039] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the predicted channel measurement may be associated with a duration, and the methods, apparatus, and non-transitory computer-readable media may also include operations, features, components, or instructions for outputting a reference signal using a second reference signal resource associated with the reference signal resource, wherein the actual channel measurement may be of the reference signal.
[0040] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the reference signal resource comprises a virtual resource, and the second reference signal resource comprises a CMR.
[0041] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first report includes a bitmap or a combination index indicating the request.
[0042] A method for wireless communication at a network entity is described. The method may include obtaining a first report indicating at least a first predicted channel measurement associated with a reference signal resource in a set of reference signal resources; and obtaining a second report indicating a channel measurement associated with the reference signal resource and indicating whether the channel measurement comprises a second predicted channel measurement or a first actual channel measurement, wherein the channel measurement comprises the second predicted channel measurement or the first actual channel measurement based on whether the first predicted channel measurement satisfies a trigger condition.
[0043] An apparatus for wireless communication at a network entity is described. The apparatus may include: a processor; a memory coupled to the processor; and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: obtain a first report indicating at least a first predicted channel measurement associated with a reference signal resource in a set of reference signal resources; and obtain a second report indicating a channel measurement associated with the reference signal resource and indicating whether the channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein the channel measurement including the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement meets a trigger condition.
[0044] Another apparatus for wireless communication at a network entity is described. The apparatus may include: means for obtaining a first report indicating at least a first predicted channel measurement associated with a reference signal resource in a set of reference signal resources; and means for obtaining a second report indicating a channel measurement associated with the reference signal resource and indicating whether the channel measurement comprises a second predicted channel measurement or a first actual channel measurement, wherein the channel measurement comprises the second predicted channel measurement or the first actual channel measurement based on whether the first predicted channel measurement satisfies a trigger condition.
[0045] A non-transitory computer-readable medium storing code for wireless communication at a network entity is described. The code may include instructions executable by a processor to: obtain a first report indicating at least a first predicted channel measurement associated with a reference signal resource in a set of reference signal resources; and obtain a second report indicating a channel measurement associated with the reference signal resource and indicating whether the channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein the channel measurement includes the second predicted channel measurement or the first actual channel measurement based on whether the first predicted channel measurement satisfies a trigger condition.
[0046] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending the second report may include operations, features, components, or instructions for obtaining one or more bits indicating whether the set of channel measurements includes predicted channel measurements or actual channel measurements. BRIEF DESCRIPTION OF THE DRAWINGS
[0047] Figure 1 and Figure 2 Each illustrates an example of a wireless communication system supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure.
[0048] Figure 3An example of a reporting scheme supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated.
[0049] Figure 4A and Figure 4B Each illustrates an example of a reporting format supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure.
[0050] Figure 5 and Figure 6 Each illustrates an example of a process flow supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure.
[0051] Figure 7 and Figure 8 A diagram illustrating a device supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated.
[0052] Figure 9 A diagram illustrating a communications manager supporting device-triggered beam measurement reporting in accordance with one or more aspects of the present disclosure is illustrated.
[0053] Figure 10 A diagram illustrating a system including a device supporting device-triggered beam measurement reporting in accordance with one or more aspects of the present disclosure is illustrated.
[0054] Figure 11 and Figure 12 A diagram illustrating a device supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated.
[0055] Figure 13 A diagram illustrating a communications manager supporting device-triggered beam measurement reporting in accordance with one or more aspects of the present disclosure is illustrated.
[0056] Figure 14 A diagram illustrating a system including a device supporting device-triggered beam measurement reporting in accordance with one or more aspects of the present disclosure is illustrated.
[0057] Figures 15 to 18 A flow chart illustrating a method of supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated. DETAILED DESCRIPTION
[0058] In some wireless communication systems, a communication device may perform one or more beam management procedures to identify one or more beam pairs for wireless communication between the communication device and one or more other communication devices. Some beam management procedures may include beam selection, transmit beam refinement, and receive beam refinement, among other possible examples. As part of the beam management procedure, the UE may report channel characteristics to a network entity. For example, the UE may transmit a CSI report indicating one or more channel characteristics measured at the UE.
[0059] In some examples, to improve the performance of one or more beam management processes, the UE may use an artificial intelligence (AI) or machine learning (ML) model to predict channel characteristics based on actual measured channel characteristics. The actual measured channel characteristics may be obtained at the UE during a measurement opportunity, and the predicted channel characteristics may be associated with a prediction opportunity (e.g., a future time instance) after the measurement opportunity. In other words, the actual measured channel characteristics may correspond to actual measurement results obtained at the UE based on measurements performed at the UE during a measurement opportunity (e.g., a time instance during which a reference signal may be sent to the UE via a downlink beam). Therefore, the predicted channel characteristics may correspond to a prediction (e.g., a predicted measurement result) of a measurement result obtained at the UE (e.g., via an AI or ML (AI / ML) model) for a future time instance, which may be referred to herein as a prediction opportunity.
[0060] In some examples, the network entity may configure the UE to periodically send CSI reports that include actual measurement results, predicted measurement results, or both. In some examples, the network entity may configure the UE to send CSI reports based on a measurement-to-prediction cycle ratio. In such examples, the UE may report predicted measurement results for multiple predicted occasions in a single CSI report. However, in some examples, the UE may determine that the predicted measurement results may be relatively unreliable. For example, the UE may rotate or change position relatively quickly, which may reduce the accuracy associated with the predicted measurement results. In such examples, the UE may determine that the predicted measurement results may be relatively unreliable. Therefore, the UE may determine to obtain actual measurements during the predicted occasions associated with the relatively unreliable predicted measurement results. However, in some examples, the UE may lack a mechanism for requesting uplink resources to report the results of the actual measurements to the network entity, let alone an effective mechanism.
[0061] Aspects of the present disclosure generally relate to device-triggered beam measurement reporting. For example, various aspects of the present disclosure provide a framework for indicating a request to send actual measurement results in response to a triggering event. In some examples, a UE may obtain predicted measurement results associated with reference signal resources (such as CMRs or virtual resources). CMRs may refer to reference signal resources used for channel measurement, and virtual resources may refer to allocated resources that can be mapped to physical resources. In some examples, the UE may determine that the predicted measurement results meet a triggering condition. In response to determining that the predicted measurement results meet the triggering condition (e.g., in response to a triggering event), the UE may request to send actual measurement results associated with the predicted measurement results. For example, the UE may send a first report (e.g., a first CSI report) indicating the predicted measurement results and a request to send a second report (e.g., a second CSI report, such as an aperiodic CSI report) indicating the actual measurement results associated with the predicted measurement results. In some examples, in response to the request, a network entity may trigger the UE to send a second report. For example, the network entity may send a grant of uplink resources that the UE can use to send the second report.
[0062] In some examples, a network entity may configure a UE to report channel characteristics for a relatively large number of reference signal resources, and measuring the channel characteristics for each reference signal resource may result in increased power consumption at the UE. Therefore, the UE may report actual measured channel characteristics for a portion of the reference signal resources and reported predicted channel characteristics for the remaining portion of the reference signal resources. In other words, the UE may send a report that includes actual measured channel characteristics, predicted channel characteristics, or both. However, in some examples, the UE may lack a mechanism, let alone an effective mechanism, for indicating whether a report includes predicted channel characteristics or actual measured channel characteristics.
[0063] Various aspects of the present disclosure provide a framework for indicating the type of channel measurement included in a report. For example, a UE may send a first report indicating a first predicted channel measurement to a network entity. The first predicted channel measurement may be associated with a reference signal resource. The UE may determine whether the first predicted channel measurement meets a trigger condition and send a second report to the network entity. The second report may indicate a channel measurement associated with the reference signal resource. Additionally, the second report may indicate whether the channel measurement includes a second predicted channel measurement associated with the reference signal resource or a first actual channel measurement associated with the reference signal resource. Whether the channel measurement includes the second predicted channel measurement or the first actual channel measurement may be based on whether the first predicted channel measurement meets the trigger condition. In some examples, based on the first predicted channel measurement meeting the trigger condition, the channel measurement may include the second predicted channel measurement. Additionally, in some examples, based on the first predicted channel measurement failing to meet the trigger condition, the channel measurement may include the first actual channel measurement.
[0064] As described herein, aspects of device-triggered beam measurement reporting may provide one or more enhancements to the beam management process. For example, various aspects of device-triggered beam measurement reporting may provide one or more frameworks for event-triggered measurement reporting that may result in improved performance and reduced complexity of the beam management process. Such frameworks may provide overhead and latency reduction, among other possible benefits. Aspects of the present disclosure are first described in the context of a wireless communication system. Aspects of the present disclosure are also described in the context of reporting schemes, reporting formats, and process flows. Aspects of the present disclosure are further illustrated and described with reference to diagrams and flow charts relating to device-triggered beam measurement reporting.
[0065] Figure 1 An example of a wireless communication system 100 supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated. The wireless communication system 100 may include one or more network entities 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be an LTE network, an LTE-A network, an LTE-A Pro network, an NR network, or a network operating according to other systems and radio technologies (including future systems and radio technologies not explicitly mentioned herein).
[0066] The network entities 105 may be dispersed throughout a geographic area to form the wireless communication system 100 and may include devices in different forms or with different capabilities. In various examples, the network entities 105 may be referred to as network elements, mobility elements, radio access network (RAN) nodes, or network equipment, among other nomenclature. In some examples, the network entities 105 and the UEs 115 may communicate wirelessly via one or more communication links 125 (e.g., radio frequency (RF) access links). For example, the network entities 105 may support a coverage area 110 (e.g., a geographic coverage area) within which the UEs 115 and the network entities 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area within which the network entities 105 and the UEs 115 may support communication of signals according to one or more radio access technologies (RATs).
[0067] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile or both stationary and mobile at different times. The UEs 115 may be devices that take different forms or have different capabilities. Figure 1 Some example UEs 115 are illustrated in FIG. The UEs 115 described herein may be capable of supporting communication with various types of devices, such as Figure 1105 or other UEs 115 or network entities 105 as shown.
[0068] As described herein, a node of the wireless communication system 100 (which may be referred to as a network node or wireless node) may be a network entity 105 (e.g., any network entity described herein), a UE 115 (e.g., any UE described herein), a network controller, an apparatus, a device, a computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, the node may be a UE 115. As another example, the node may be a network entity 105. As another example, a first node may be configured to communicate with a second node or a third node. In one aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a UE 115. In another aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a network entity 105. In other aspects of this example, the first node, the second node, and the third node may be different relative to these examples. Similarly, references to UE 115, network entity 105, apparatus, device, computing system, etc. may include disclosure of UE 115, network entity 105, apparatus, device, computing system, etc. as nodes. For example, a disclosure that UE 115 is configured to receive information from network entity 105 also discloses that the first node is configured to receive information from the second node.
[0069] In some examples, network entities 105 can communicate with core network 130, with each other, or both. For example, network entities 105 can communicate with core network 130 via one or more backhaul communication links 120 (e.g., according to S1, N2, N3, or other interface protocols). In some examples, network entities 105 can communicate with each other directly (e.g., directly between network entities 105) or indirectly (e.g., via core network 130) via backhaul communication links 120 (e.g., according to X2, Xn, or other interface protocols). In some examples, network entities 105 can communicate with each other via midhaul communication links 162 (e.g., according to a midhaul interface protocol) or fronthaul communication links 168 (e.g., according to a fronthaul interface protocol), or any combination thereof. Backhaul communication links 120, midhaul communication links 162, or fronthaul communication links 168 can be or include one or more wired links (e.g., electrical links, fiber optic links), one or more wireless links (e.g., radio links, wireless optical links), etc., or various combinations thereof. UE 115 may communicate with core network 130 via communication link 155 .
[0070] One or more of the network entities 105 described herein may include or may be referred to as a base station 140 (e.g., a transceiver base station, a radio base station, an NR base station, an access point, a radio transceiver, a Node B, an eNodeB (eNB), a next-generation Node B, or a gigabit Node B (any of which may be referred to as a gNB), a 5G NB, a next-generation eNB (ng-eNB), a Home Node B, a Home eNodeB, or other suitable terminology). In some examples, the network entity 105 (e.g., a base station 140) may be implemented in a converged (e.g., monolithic, stand-alone) base station architecture that may be configured to utilize a protocol stack that is physically or logically integrated within a single network entity 105 (e.g., a single RAN node, such as the base station 140).
[0071] In some examples, the network entity 105 can be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) that can be configured to utilize a protocol stack that is physically or logically distributed between two or more network entities 105, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN)). For example, the network entity 105 can include one or more of the following: a central unit (CU) 160, a distributed unit (DU) 165, a radio unit (RU) 170, a RAN intelligent controller (RIC) 175 (e.g., a near real-time RIC (near RT RIC), a non-real-time RIC (non-RT RIC)), a service management and orchestration (SMO) 180 system, or any combination thereof. The RU 170 may also be referred to as a radio head, smart radio head, remote radio head (RRH), remote radio unit (RRU), or transmit receive point (TRP). One or more components of the network entity 105 in the disaggregated RAN architecture may be co-located, or one or more components of the network entity 105 may be located in distributed locations (e.g., separate physical locations). In some examples, one or more network entities 105 of the disaggregated RAN architecture may be implemented as virtual units (e.g., virtual CU (VCU), virtual DU (VDU), virtual RU (VRU)).
[0072] The functional split between CU 160, DU 165, and RU 170 is flexible and can support different functions depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, and any combination thereof) are performed at CU 160, DU 165, or RU 170. For example, a functional split of the protocol stack can be employed between CU 160 and DU 165 such that CU 160 can support one or more layers of the protocol stack and DU 165 can support one or more different layers of the protocol stack. In some examples, CU 160 can host higher protocol layer (e.g., Layer 3 (L3), Layer 2 (L2)) functions and signaling (e.g., Radio Resource Control (RRC), Service Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP)). The CU 160 may be connected to one or more DUs 165 or RUs 170, and the one or more DUs 165 or RUs 170 may host lower protocol layers, such as Layer 1 (L1) (e.g., physical (PHY) layer) or L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU 160. Additionally or alternatively, a functional split of the protocol stack may be employed between the DU 165 and the RU 170, such that the DU 165 may support one or more layers of the protocol stack and the RU 170 may support one or more different layers of the protocol stack. The DU 165 may support one or more different cells (e.g., via one or more RUs 170). In some cases, the functional split between the CU 160 and the DU 165 or between the DU 165 and the RU 170 can be within the protocol layer (e.g., some functions of the protocol layer can be performed by one of the CU 160, DU 165, or RU 170, while other functions of the protocol layer are performed by a different one of the CU 160, DU 165, or RU 170). The CU 160 can be further functionally split into CU control plane (CU-CP) and CU user plane (CU-UP) functions. The CU 160 can be connected to one or more DUs 165 via midhaul communication links 162 (e.g., F1, F1-c, F1-u), and the DU 165 can be connected to one or more RUs 170 via fronthaul communication links 168 (e.g., open fronthaul (FH) interface). In some examples, midhaul communication link 162 or fronthaul communication link 168 may be implemented according to interfaces (eg, channels) between layers of a protocol stack supported by respective network entities 105 communicating via these communication links.
[0073] In some wireless communication systems (e.g., wireless communication system 100), the infrastructure and spectrum resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, thereby providing an IAB network architecture (e.g., to the core network 130). In some cases, in an IAB network, one or more network entities 105 (e.g., IAB nodes 104) may be partially controlled by each other. One or more IAB nodes 104 may be referred to as a donor entity or IAB donor. One or more DUs 165 or one or more RUs 170 may be partially controlled by one or more CUs 160 associated with a donor network entity 105 (e.g., a donor base station 140). One or more donor network entities 105 (e.g., IAB donors) may communicate with one or more additional network entities 105 (e.g., IAB nodes 104) via supported access and backhaul links (e.g., backhaul communication links 120). The IAB node 104 may include an IAB mobile terminal (IAB-MT) controlled (e.g., scheduled) by the DU 165 of the coupled IAB donor. The IAB-MT may include an independent set of antennas for relaying communications with the UE 115, or may share the same antennas of the IAB node 104 (e.g., RU 170) for access via the DU 165 of the IAB node 104 (e.g., referred to as a virtual IAB-MT (vIAB-MT)). In some examples, the IAB node 104 may include a DU 165 that supports communication links with additional entities (e.g., IAB node 104, UE 115) within a relay chain or configuration (e.g., downstream) of the access network. In such cases, one or more components of the decomposed RAN architecture (e.g., one or more IAB nodes 104 or components of the IAB node 104) may be configured to operate according to the techniques described herein.
[0074] Where the techniques described herein are applied in the context of a disaggregated RAN architecture, one or more components of the disaggregated RAN architecture may be configured to support device-triggered beam measurement reporting as described herein. For example, some operations described as being performed by the UE 115 or the network entity 105 (e.g., the base station 140) may additionally or alternatively be performed by one or more components of the disaggregated RAN architecture (e.g., the IAB node 104, the DU 165, the CU 160, the RU 170, the RIC 175, the SMO 180).
[0075] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where "device" may also be referred to as a unit, a station, a terminal, or a client, etc. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 may include or may be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects, such as appliances or vehicles, meters, etc.
[0076] The UE 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, which may sometimes act as relays, as well as network entities 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, etc. Figure 1 shown.
[0077] The UE 115 and the network entity 105 can wirelessly communicate with each other via one or more communication links 125 (e.g., access links) using resources associated with one or more carriers. The term "carrier" can refer to a set of RF spectrum resources having a physical layer structure defined for supporting the communication link 125. For example, a carrier used for the communication link 125 can include a portion of an RF spectrum band (e.g., a bandwidth portion (BWP)) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel can carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operations, user data, or other signaling. The wireless communication system 100 can support communications with the UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, the UE 115 can be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation can be used for both frequency division duplex (FDD) and time division duplex (TDD) component carriers. Communication between the network entity 105 and other devices may refer to communication between those devices and any portion (e.g., entity, sub-entity) of the network entity 105. For example, the terms "send," "receive," or "communicate" when referring to the network entity 105 may refer to any portion of the network entity 105 (e.g., base station 140, CU 160, DU 165, RU 170) of the RAN communicating with another device (e.g., directly or via one or more other network entities 105).
[0078] The signal waveform transmitted via the carrier may be composed of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as OFDM or DFT-S-OFDM). In a system employing MCM techniques, a resource element may refer to the resource of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, in which case the symbol period and subcarrier spacing may be inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both), such that a relatively high number of resource elements (e.g., in the transmission duration) and a relatively high order modulation scheme may correspond to a relatively high communication rate. Wireless communication resources may refer to a combination of RF spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial resources may increase the data rate or data integrity used for communication with UE 115.
[0079] The time interval for the network entity 105 or the UE 115 may be expressed as a multiple of a basic time unit, which may be, for example, a sampling period T s =1 / (Δf max ·N f ) seconds, where Δf max It can represent the supported subcarrier spacing, and N f The supported discrete Fourier transform (DFT) size may be indicated. Time intervals of communication resources may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., in the range of 0 to 1023).
[0080] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a certain number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a certain number of symbol periods (e.g., depending on the length of the cyclic prefix appended to the front of each symbol period). In some wireless communication systems 100, the time slot may be further divided into a plurality of mini-time slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.
[0081] A subframe, slot, mini-slot, or symbol may be the minimum scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a Transmit Time Interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the minimum scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI)).
[0082] Physical channels may be multiplexed according to various techniques for communication using a carrier. For example, physical control channels and physical data channels may be multiplexed using one or more of time division multiplexing (TDM), frequency division multiplexing (FDM), or hybrid TDM-FDM techniques for signaling via a downlink carrier. A control region (e.g., a control resource set (CORESET)) of a physical control channel may be defined by a set of symbol periods and may extend across the system bandwidth of a carrier or a subset of that bandwidth. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more of UEs 115 may monitor or search the control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. The aggregation level of a control channel candidate may refer to the amount of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .
[0083] In some examples, network entities 105 (e.g., base stations 140, RUs 170) can be mobile and, therefore, provide communication coverage for mobile coverage areas 110. In some examples, different coverage areas 110 associated with different technologies can overlap, but the different coverage areas 110 can be supported by the same network entity 105. In some other examples, overlapping coverage areas 110 associated with different technologies can be supported by different network entities 105. The wireless communication system 100 can include, for example, a heterogeneous network in which different types of network entities 105 provide coverage for various coverage areas 110 using the same or different radio access technologies.
[0084] The wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication or various combinations thereof. For example, the wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC). The UE 115 can be designed to support ultra-reliable or low-latency or critical functions. Ultra-reliable communication can include private communication or group communication and can be supported by one or more services (such as push-to-talk, video or data). Support for ultra-reliable, low-latency functions can include prioritization of services, and such services can be used for public safety or general commercial applications. The terms ultra-reliable, low-latency and ultra-reliable low-latency can be used interchangeably in this article.
[0085] In some examples, a UE 115 can be configured to support communication directly with other UEs 115 via a device-to-device (D2D) communication link 135 (e.g., according to a peer-to-peer (P2P), D2D, or sidelink protocol). In some examples, one or more UEs 115 in a group performing D2D communication can be within a coverage area 110 of a network entity 105 (e.g., a base station 140, a RU 170), which can support aspects of such D2D communication configured (e.g., scheduled) by the network entity 105. In some examples, one or more UEs 115 in such a group can be outside of the coverage area 110 of the network entity 105 or can otherwise be unable or not configured to receive transmissions from the network entity 105. In some examples, a group of UEs 115 communicating via D2D communication can support a one-to-many (1:M) system, in which each UE 115 transmits to each of the other UEs 115 in the group. In some examples, network entity 105 may facilitate scheduling of resources for D2D communications. In some other examples, D2D communications may be performed between UEs 115 without involving network entity 105.
[0086] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) for managing access and mobility and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnecting to external networks. The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for UEs 115 served by network entities 105 (e.g., base stations 140) associated with the core network 130. User IP packets may be transferred through the user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to the IP services 150 of one or more network operators. IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.
[0087] The wireless communication system 100 can operate using one or more frequency bands that can range from 300 megahertz (MHz) to 300 gigahertz (GHz). Generally speaking, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from about one decimeter to one meter in length. UHF waves can be blocked or redirected by buildings and environmental features (which can be referred to as clusters), but these waves can penetrate structures sufficiently for a macro cell to provide service to a UE 115 located indoors. Communication using UHF waves can be associated with smaller antennas and a shorter range (e.g., less than 100 kilometers) than communication using the smaller frequencies and longer wavelengths of the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.
[0088] The wireless communication system 100 can utilize both licensed and unlicensed RF spectrum bands. For example, the wireless communication system 100 can use unlicensed bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band) to employ license-assisted access (LAA), LTE-unlicensed (LTE-U) radio access technology, or NR technology. When operating using unlicensed RF spectrum bands, devices such as the network entity 105 and the UE 115 can employ carrier sensing for conflict detection and avoidance. In some examples, operations using unlicensed bands can be based on a carrier aggregation configuration (e.g., LAA) in conjunction with component carriers operating using licensed bands. Operations using the unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.
[0089] A network entity 105 (e.g., a base station 140, a RU 170) or a UE 115 may be equipped with multiple antennas that can be used to employ techniques such as transmit diversity, receive diversity, multiple-input, multiple-output (MIMO) communications, or beamforming. The antennas of the network entity 105 or UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, the antennas or antenna arrays associated with the network entity 105 may be located at different geographic locations. The network entity 105 may include an antenna array having a set of multiple rows and columns of antenna ports that the network entity 105 may use to support beamforming for communications with the UE 115. Similarly, the UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panels may support RF beamforming for signals transmitted via the antenna ports.
[0090] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a network entity 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals communicated via antenna elements of an antenna array so that some signals propagating in a particular direction relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals communicated via antenna elements can include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. The adjustments associated with each of these antenna elements can be defined by a set of beamforming weights associated with a particular direction (e.g., relative to the antenna array of the transmitting device or the receiving device or relative to some other direction).
[0091] The network entity 105 or the UE 115 may use beam sweeping techniques as part of a beamforming operation. For example, the network entity 105 (e.g., base station 140, RU 170) may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the network entity 105 along different directions. For example, the network entity 105 may transmit signals according to different sets of beamforming weights associated with different transmit directions. Transmissions along different beam directions may be used to identify (e.g., by a transmitting device (such as the network entity 105) or by a receiving device (such as the UE 115)) the beam direction for later transmission or reception by the network entity 105.
[0092] Some signals, such as data signals associated with a particular receiving device, may be transmitted by a transmitting device (e.g., transmitting network entity 105, transmitting UE 115) along a single beam direction (e.g., a direction associated with a receiving device (e.g., receiving network entity 105 or receiving UE 115)). In some examples, a beam direction associated with transmission along a single beam direction may be determined based on signals transmitted along one or more beam directions. For example, UE 115 may receive one or more of the signals transmitted by network entity 105 along different directions and may report to network entity 105 an indication of the signal received by UE 115 with the highest signal quality or other acceptable signal quality.
[0093] In some examples, transmission by a device (e.g., by network entity 105 or UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or beamforming to generate a combined beam for transmission (e.g., from network entity 105 to UE 115). UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured set of beams across the system bandwidth or one or more subbands. Network entity 105 may transmit reference signals (e.g., cell-specific reference signals (CRS), CSI reference signals (CSI-RS)), which may be precoded or not precoded. UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel codebook, a linear combination codebook, a port selection codebook). Although these techniques are described with reference to signals sent by a network entity 105 (e.g., base station 140, RU 170) in one or more directions, UE 115 may use similar techniques to send signals multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115) or to send signals in a single direction (e.g., to send data to a receiving device).
[0094] A receiving device (e.g., UE 115) may perform reception operations according to multiple reception configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from a receiving device (e.g., network entity 105). For example, the receiving device may perform reception according to multiple reception directions by receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array (e.g., different directional listening weight sets), or processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different reception configurations or reception directions. In some examples, the receiving device may use a single reception configuration to receive along a single beam direction (e.g., when receiving a data signal). A single receive configuration may be aligned along a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).
[0095] For example, as part of a beam management process, network entity 105 may configure UE 115 to report channel measurements for one or more reference signal resources (e.g., CMRs or virtual resources). Channel measurements may include one or more types of channel characteristics, such as reference signal received power (RSRP) measurements, signal-to-interference-plus-noise ratio (SINR) measurements, rank indicator (RI), PMI, and channel quality indicator (CQI). To improve the performance of the beam management process, UE 115 may use an AI / ML model to predict channel measurements based on actual measured channel characteristics. However, in some examples, UE 115 may determine that the predicted measurement results may be relatively unreliable. For example, UE 115 may rotate or change position relatively quickly, which may reduce the accuracy associated with the predicted measurement results. In such examples, UE 115 may determine that the predicted measurement results may be relatively unreliable and obtain actual measurements during the predicted opportunity associated with the predicted measurement results. However, in some examples, UE 115 may lack a mechanism for requesting uplink resources to report the results of the actual measurements to network entity 105.
[0096] In some examples, UE 115 may be configured with a framework for instructing a request to send actual measurement results to network entity 105 in response to a triggering event. For example, UE 115 may obtain predicted measurement results associated with reference signal resources. UE 115 may send a first report to the network entity indicating the predicted measurement results and a request to send a second report indicating actual measurement results associated with the predicted measurement results. In some examples, the request to send the second report may be based on UE 115 determining that the predicted measurement results meet a triggering condition. In other words, UE 115 may request to send the second report in response to the triggering event. In some examples, in response to the request, network entity 105 may trigger UE 115 to send the second report. For example, network entity 105 may send a grant of uplink resources that UE 115 may use to send the second report.
[0097] In some examples, network entity 105 may configure UE 115 to report channel characteristics for a relatively large number of reference signal resources, and measuring the channel characteristics for each reference signal resource may result in increased power consumption at UE 115. Therefore, to reduce the amount of actual measurements performed at UE 115, UE 115 may report actual measurement results for a portion of the reference signal resources and report predicted measurement results for the remaining portion of the reference signal resources. However, in some examples, UE 115 may lack a mechanism for indicating whether a report includes actual measurement results, predicted measurement results, or both.
[0098] In some examples, UE 115 may be configured with a framework for indicating the type of channel measurement included in the report. For example, UE 115 may send a first report indicating a first predicted channel measurement to network entity 105. The first predicted channel measurement may be associated with a reference signal resource. UE 115 may determine whether the first predicted channel measurement meets a trigger condition and send a second report to network entity 105. The second report may indicate a channel measurement associated with the reference signal resource and whether the channel measurement includes the second predicted channel measurement or the first actual channel measurement. In some examples, based on the first predicted channel measurement meeting the trigger condition, the channel measurement may include the second predicted channel measurement. Additionally, in some examples, based on the first predicted channel measurement failing to meet the trigger condition, the channel measurement may include the first actual channel measurement. In some examples, enabling UE 115 to have one or more frameworks for event-triggered beam measurement reporting may result in improved performance and reduced complexity of the beam management process, as well as other possible benefits.
[0099] Figure 2 An example of a wireless communication system 200 that supports device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated. The wireless communication system 200 may implement or may be implemented to achieve or facilitate aspects of the wireless communication system 100. For example, the wireless communication system 200 may include a UE 215 and a network entity 205, which may be connected to a UE 215 and a network entity 205. Figure 1 The network entity 205 may communicate with the UE 215 via one or more communication links 220 (e.g., communication link 220-a and communication link 220-b), which may be via Figure 1 Examples of communication links (e.g., Uu interfaces) are illustrated and described with reference to the figure. For example, communication link 220-a may be an example of a downlink, and communication link 220-b may be an example of an uplink. UE 215 and network entity 205 may communicate within coverage area 210, which may be via Figure 1 Examples of coverage areas are illustrated and described with reference to this figure.
[0100] In some examples, the network entity 205 and the UE 215 may use one or more beam management techniques to improve the initial access procedure and the tracking procedure and identify a beam pair to be used for wireless communication between the UE 215 and the network entity 205 (e.g., a gNB). For example, the UE 215 may operate in one or more radio resource control (RRC) states, such as an idle state (e.g., indicated via an RRC_IDLE information element (IE)), an inactive state (e.g., indicated via an RRC_inactive IE), or a connected state (e.g., indicated via an RRC_connected IE). In some examples, the network entity 205 and the UE 215 may perform an initial access procedure after the UE 215 operates in the idle state or the inactive state. During the initial access procedure, the network entity 205 may perform a beam scanning procedure (e.g., using a relatively wide beam, such as a synchronization signal block (SSB) beam). In some examples, when UE 215 may be operating in an idle state or an inactive state, UE 215 may use a tracking reference signal (TRS), such as for paging reception at UE 215 (e.g., to save power), where a configuration for the TRS may be provided in system information to UE 215. In cells where the TRS is available for use by UE 215 when UE 215 may be operating in an idle state or an inactive state, UE 215 may be informed of the availability of the configured TRS via signaling, such as L1 signaling (e.g., from network entity 205).
[0101] In some examples, such as those in which UE 215 may operate in a connected state, UE 215 may receive downlink communications from network entity 205 via a directional beam, such as one that may be used to transmit one or more reference signals. In some instances, an established connection (e.g., a communication link, which may also be referred to as a radio link or link) may be susceptible to obstructions and fading, which may cause a disruption of the radio link or a radio link failure. That is, downlink communications from network entity 205 may be dropped. To reduce the likelihood of a radio link failure or to recover after a radio link failure, UE 215 may perform a beam management procedure, such as a beam failure prevention procedure or a beam failure recovery procedure.
[0102] For example, UE 215 may perform a beam failure recovery procedure to reestablish a connection with network entity 205 and select another (e.g., a different) beam pair for communicating with network entity 205. The beam pair may include a beam of network entity 205 (e.g., a beam associated with a cell supported by network entity 205) and a beam of UE 215. In some examples, the beam management procedure may include one or more procedures for downlink beam management, such as beam selection (P1), transmit beam refinement (P2) for network entity 205, and receive beam refinement (P3) for UE 215. In some examples, P1, P2, and P3 may include the transmission of one or more reference signals (such as SSBs or CSI-RSs) from network entity 205. Additionally, the beam management process may include one or more other processes (e.g., U1, U2, U3) for uplink beam management, which may include the transmission of an uplink reference signal (e.g., a sounding reference signal (SRS)) from the UE 215. In some examples, beam management may include reporting (such as L1-based (or L2-based) measurement reporting (e.g., L1-RSRP reporting, L1-SINR reporting)), TCI state configuration (e.g., indication) from the network entity 205, dynamic TCI updating, uplink multi-panel selection, and maximum permitted exposure (MPE) mitigation, among other possible examples. In examples where the UE 215 detects a radio link outage or detects a radio link failure (e.g., based on measurements such as beam failure detection reference signal (BFD-RS) measurements or block error rate (BLER) measurements), the UE 215 may perform a recovery process (e.g., a beam failure recovery process) to reduce the link outage time or link failure time. The recovery process may be used for a primary cell (PCell), a primary cell (PSCell) in a secondary cell group, or a secondary cell (SCell). In some examples, the recovery process may be based on a random access process (e.g., contention-free random access (CFRA)). Additionally, in some examples, the recovery process may include sending a link recovery request (e.g., via a scheduling request). In some examples, the recovery process may be a beam failure recovery process based on a medium access control element (MAC-CE) (e.g., for an SCell).
[0103] In some examples, the UE 215 or the network entity 205 or both may support AI / ML-based beam management. For example, the UE 215 (or the network entity 205) may support one or more AI / ML-based beam management scenarios for characterization and performance (e.g., baseline performance) evaluation. That is, the UE 215 may support AI / ML-based beam management for performance monitoring. The AI / ML-based beam management scenarios may include spatial domain downlink beam prediction. For example, the UE 215 may use AI / ML to predict measurements of a first set of beams (e.g., set A, predicted targets) based on measurement results (e.g., actual measurements) of reference signals sent to the UE 215 using a second set of beams (e.g., set B, measurement source). The predicted measurements and actual measurements may include RSRP measurements or SINR measurements, as well as other possible examples of channel measurements.
[0104] In some examples, Set A and Set B may be different in the spatial domain. For example, Set A may correspond to a first set of reference signal resources (e.g., SSB resources or CSI-RS resources), and Set B may correspond to a second set of reference signal resources (e.g., CSI-RS resources or SSB resources). That is, for spatial domain downlink beam prediction, UE 215 may predict measurements of the first set of reference signal resources. The reference signal resources (e.g., each reference signal resource) included in the first set of reference signal resources may correspond to a corresponding beam included in the first set of beams (e.g., Set A). Additionally, the predicted measurements may be based on actual measurements of a set of reference signals transmitted using the second set of reference signal resources. The reference signal resources (e.g., each reference signal resource) included in the second set of reference signal resources may correspond to a corresponding beam included in the second set of beams (e.g., Set B) (e.g., used to transmit the corresponding reference signal). In some other examples, Set A may include a subset (e.g., a downsampled version) of Set B. That is, the first set of reference signal resources may include a subset of the second set of reference signal resources.
[0105] Another AI / ML-based beam management scenario may include time-domain downlink beam prediction. For example, UE 215 may use AI / ML to predict measurements (e.g., RSRP measurements, SINR measurements) for a first set of beams (e.g., set A) based on historical measurements of a second set of beams (e.g., set B). In some examples, set A may correspond to a set of reference signal resources at a first time instance, and set B may correspond to the same set of reference signal resources at a second time instance (e.g., a previous time instance). In some other examples, set A may correspond to a first set of reference signal resources, and set B may correspond to a second set of reference signal resources that may be different from the first set of reference signal resources. For example, the second set of reference signal resources may correspond to SSB resources (e.g., UE 215 may perform measurements on SSBs transmitted using relatively wide beams), and the first set of reference signal resources may correspond to CSI-RS resources (e.g., UE 215 may predict measurements on CSI-RS that may be transmitted using relatively narrow beams). In some examples, the beams in set A and set B may be within the same frequency range. That is, the first set of reference signal resources and the second set of reference signal resources may include frequencies within the same frequency range.
[0106] In some examples, UE 215 may be configured to determine the respective amounts of beams (e.g., reference signal resources) to be included in set A and set B. Additionally, UE 215 may select set B from the beams (e.g., reference signal resources) in set A based on the determined amounts of beams to be included in set B (e.g., according to a fixed pattern, a random pattern). In some examples, UE 215 may be configured to determine whether set A and set B will be different (e.g., whether set A may include relatively narrow beams and whether set B may include relatively wide beams). Thus, UE 215 may determine a quasi-co-location (QCL) relationship between the beams in set A and the beams in set B. In some examples, set A may be used for downlink beam prediction, and set B may be used for downlink beam measurement. Additionally, in some examples, UE 215 may be configured with one or more codebook constructions for set A and set B.
[0107] In some examples, such as for spatial domain beam prediction, the wireless communication system 200 can support beam management using a UE-side AI / ML model, which can include L1 signaling from the UE 215 for reporting information associated with the AI / ML model inferences (e.g., predictions) to the network entity 205. In such examples, one or more beams used for downlink communication with the UE 215 can be inferred based on the AI / ML model. That is, the one or more beams used for downlink communication with the UE 215 can be based on the output of the AI / ML model inference at the UE 215. In some examples, the report can include a predicted L1-RSRP measurement (or L1-SINR measurement) corresponding to the one or more beams (e.g., one or more reference signal resources).
[0108] In some other examples, such as for time-domain prediction, the wireless communication system 200 can support beam management using a UE-side AI / ML model, which can include L1 signaling from the UE 215 for reporting information associated with the AI / ML model inferences to the network entity 205. In such examples, one or more beams (e.g., reference signal resources) at a certain number (N) of future time instances (e.g., time opportunities) can be inferred based on the AI / ML model. That is, the one or more beams used for downlink communication with the UE 215 at the certain number of future time opportunities can be based on the output of the AI / ML model inference at the UE 215. In some examples, the UE 215 can be configured with a value N.
[0109] Additionally, for time-domain prediction, the wireless communication system 200 can support beam management using a UE-side AI / ML model, which can include L1 signaling from the UE 215 for reporting information associated with the AI / ML model inference to the network entity 205. In some examples, one or more beams (e.g., reference signal resources) at a certain number (N) of future time instances (e.g., time opportunities) can be based on output of the AI / ML model inference (e.g., at the UE 215). In some examples, the UE 215 can be configured with a value of N.
[0110] In some examples, the report may include predicted L1-RSRP measurements corresponding to one or more beams (e.g., one or more reference signal resources). In some examples, the report may include information about a timestamp corresponding to the reported one or more beams (e.g., one or more reference signal resources). In some examples, the timestamp information may be explicitly indicated via the report or implicitly indicated via the report.
[0111] In some examples, the wireless communication system 200 may support model monitoring and potential down-selection for spatial domain prediction and time domain prediction using UE-side AI / ML models. For example, the wireless communication system may support UE-side model monitoring, wherein the UE 215 may monitor performance metrics associated with the AI / ML model or with wireless communication between the UE 215 and the network entity 205 (or both). In some examples, the UE 215 may make determinations regarding model selection, activation, deactivation, handover, and fallback operations, etc. Additionally or alternatively, the wireless communication system 200 may support network-side model monitoring, wherein the network entity 205 may monitor performance metrics associated with the AI / ML model or with wireless communication between the UE 215 and the network entity 205 (or both). Additionally, in some examples, the network entity 205 may make determinations regarding model selection, activation, deactivation, handover, and fallback operations, etc. The wireless communication system 200 may support hybrid model monitoring, where the UE 215 may monitor one or more performance metrics and the network entity 205 may make determinations regarding model selection, activation, deactivation, handover, and fallback operations.
[0112] In some examples, such as for spatial domain prediction or time domain prediction using a UE-side AI / ML model and network-side model monitoring, the network entity 205 may monitor one or more performance metrics and make determinations regarding model selection, activation, deactivation, switching, and fallback operations. Additionally, in some examples of network-side model monitoring for a network-side AI / ML model (e.g., for spatial domain prediction and for time domain prediction), the UE 215 may be configured to perform beam measurements and send reports for model monitoring. In some examples, such as for spatial domain prediction or time domain prediction using a network-side AI / ML model, the UE 215 may support one or more L1 beam reporting enhancements for AI / ML model inference. For example, the UE 215 may report measurement results for multiple (e.g., more than 4) beams in one reporting instance. That is, the UE 215 may report measurement results for multiple (e.g., more than 4) reference signal resources in one reporting instance. Additionally, the UE 215 may support one or more other L1 reporting enhancements.
[0113] In some examples, UE 215 may use one or more AI / ML models (e.g., UE-side AI / ML models) to perform spatial domain prediction associated with reference signal resources or time domain prediction associated with reference signal resources (or both) based on measurements performed at UE 215 (e.g., historical measurements). That is, UE 215 may use the AI / ML models to predict and report future beam characteristics based on historical measurements. In other words, UE 215 may use the AI / ML models to predict measurement results associated with reference signal resources based on actual measurement results associated with the reference signal resources or other reference signal resources. That is, the predicted measurement results may be associated with a first set of reference signal resources, and the actual measurement results may be associated with a second set of reference signal resources, which may be different from (or the same as) the first set of reference signal resources.
[0114] In some examples, UE 215 may be configured to report predicted measurement results and actual measurement results in a single reporting opportunity (e.g., in a single report, in a single payload). That is, UE 215 may be configured to send a report (e.g., an L1 report, such as a CSI report) during a reporting opportunity that may include one or more actual measurement results and one or more predicted measurement results. The actual channel measurement results may correspond to measurements performed at UE 215 during the measurement opportunity. In other words, the actual channel measurement may be obtained at UE 215 based on measurements performed during a time instance in which UE 215 may use reference signal resources associated with the actual measurement results to transmit a reference signal to UE 215. That is, the actual channel measurement may be of a reference signal transmitted to UE 215 using the reference signal resources associated with the actual measurement results. Additionally, the predicted measurement results may correspond to a prediction of measurements during a predicted opportunity (e.g., a future time instance, an opportunity after the reporting opportunity). A report may include multiple predicted results for multiple future time instances. However, in some examples, UE 215 may determine that the predicted measurement results may be relatively unreliable.
[0115] For example, UE 215 may support performance monitoring (e.g., autonomous performance monitoring) for AI / ML-based beam prediction. In such an example, UE 215 may monitor the accuracy associated with predicted measurement results. For example, considering UE-side AI / ML inference for time-domain (or spatial-domain) beam prediction (e.g., reference signal resource prediction), network entity 205 (e.g., gNB) may configure (e.g., pre-configure) a measurement-to-prediction cycle ratio for UE 215. In such an example, UE 215 may report predicted measurement results (e.g., all predicted measurement results) for multiple future prediction cycles (e.g., prediction opportunities) in a single CSI report. However, in some examples, UE 215 may make observations (e.g., internally, so that only UE 215 is aware of the observations) that may affect the performance of beam prediction (e.g., time-domain beam prediction) at UE 215. For example, UE 215 may rotate (e.g., suddenly, relatively quickly), which may result in reduced prediction accuracy.
[0116] In some examples, UE 215 may determine that the confidence level for one or more of the predicted measurement results may be relatively low. For example, UE 215 may determine that the confidence level associated with one or more of the predicted measurement results (e.g., the time-domain predicted results included in the report) may meet a threshold. In some examples, such as in response to UE 215 observing that the prediction accuracy of the predicted measurement results is relatively low, UE 215 may determine to perform measurements during the predicted occasions associated with the predicted measurements. However, in some examples, UE 215 may lack a mechanism, let alone an effective mechanism, for requesting uplink resource feedback of actual measurement results. Additionally, for example, if reference signal transmission may not be supported during the predicted occasions, UE 215 may lack a mechanism, let alone an effective mechanism, for requesting reference signal transmission. That is, UE 215 may determine to report actual measurement results for predicted measurement results that may be associated with virtual resources. In such an example, UE 215 may determine to request the transmission of a CMR (e.g., scheduling of reference signal resources) so that UE 215 can actually perform measurements.
[0117] In some examples, device-triggered beam measurement reporting, as described herein, may provide one or more mechanisms for UE 215 to request uplink resources to report actual measurement results, and in some examples, to request the transmission of reference signals for the actual measurements. For example, pursuant to device-triggered beam measurement reporting, UE 215 may send signaling indicating such a request (e.g., a report, such as a clear weather prediction report). In other words, UE 215 may support UE (event-triggered) actual beam measurement reporting for AI / ML-based beam prediction performance monitoring. For example, UE 215 may send UE event-triggered actual beam measurement reporting for AI / ML-based time-domain beam prediction performance monitoring to network entity 205. In some examples, UE 215 may include an additional payload in a report (e.g., a CSI report) carrying predicted measurement results (e.g., predicted future beams) to indicate whether actual measurement results may be reported (e.g., for reference signal resources associated with the predicted measurement results) or whether reference signals may be transmitted (e.g., using reference signal resources or another reference signal resource associated with the reference signal resources). In some examples, UE event-triggered actual beam measurement reporting can be extended to spatial domain beam prediction performance monitoring.
[0118] UE 215 may send a first report 225 (e.g., an L1 report, such as a CSI report) to network entity 205 during a reporting opportunity. The first report 225 may be an example of an actual beam measurement report triggered by an event for AI / ML-based beam prediction performance monitoring. In some examples, through the first report 225 (e.g., a CSI report, such as an aperiodic CSI report), UE 215 may report predicted channel characteristics (e.g., including L1-RSRP, L1-SINR, RI, PMI, and CQI) for a certain amount of reference signal resources (such as CMR or virtual resources). In some examples, virtual resources may refer to reference signal resources in which a reference signal (e.g., a prediction target) may not be transmitted or may not be scheduled to be transmitted. Additionally, in some examples, CMR may refer to resources used for transmission of reference signals (such as SSB or CSI-RS, etc.).
[0119] like Figure 2As illustrated in the example of , the first report 225 may indicate a predicted channel measurement result (e.g., predicted measurement 230) associated with the first reference signal resource. The first reference signal resource may be an example of a CMR or a virtual resource, and the predicted measurement 230 may be an example of an L1-RSRP measurement, an L1-SINR measurement, an RI, a PMI, a CQI, or another type of channel characteristic. In some instances, the first report 225 may include one or more actual measurement results. For example, the first report 225 may include the predicted measurement 230 and one or more actual measurements. In some examples, the predicted measurement 230 may be based on the actual channel measurement included in the first report 225. For examples in which the first report 225 includes one or more actual measurements, the actual measurement may be performed at the UE 215 during a measurement opportunity prior to the reporting opportunity. Additionally, the predicted measurement 230 may be associated with a predicted opportunity that occurs after the reporting opportunity.
[0120] Through the same CSI report (e.g., first report 225), UE 215 may indicate to network entity 205 (e.g., gNB) a request for UE 215 to provide feedback on actual measured channel characteristics associated with predicted channel characteristics (e.g., associated with predicted measurement 230). For example, first report 225 may indicate actual measurement request 235, which may indicate a request to send second report 245 indicating actual measurement 250 associated with predicted measurement 230 (e.g., actual channel measurement result). Actual measurement request 235 may be based on triggering event 222. For example, UE 215 may send (e.g., via first report 225) actual measurement request 235 based on predicted measurement 230 satisfying a trigger condition. That is, triggering event 222 may correspond to predicted measurement 230 satisfying the trigger condition.
[0121] For example, if the confidence level associated with the predicted measurement 230 satisfies a threshold, the UE 215 may determine that the predicted measurement 230 satisfies the trigger condition. In this example, the UE 215 may send an indication of an actual measurement request 235 (e.g., via the first report 225), so that the UE 215 may obtain an actual measurement 250 (e.g., during the predicted opportunity associated with the predicted measurement 230) and report the actual measurement 250 to the network entity 205. The UE 215 may identify the trigger event 222 as part of performance monitoring (e.g., autonomous performance monitoring) for AI / ML-based beam prediction. That is, the UE 215 may determine that the confidence level associated with the predicted measurement 230 satisfies the threshold as part of performance monitoring for AI / ML-based beam prediction. In some examples, the UE 215 may use the actual measurement 250 to verify the associated predicted measurement result.
[0122] In some examples, a trigger condition (also referred to as an event trigger) can be hard-coded at the UE 215, for example, based on configuration (e.g., gNB configuration), UE reporting, or both. For example, the UE 215 can report (e.g., recommend) the trigger condition to the network entity 205, the network entity 205 can configure the trigger condition to the UE 215 (e.g., the trigger condition can be gNB controlled), or the UE 215 can be configured with the trigger condition in other ways (e.g., according to a pre-defined method).
[0123] In some examples, the first reference signal resource associated with predicted measurement 230 may be a virtual resource. In such examples, network entity 205 may transmit a reference signal using a second reference signal resource (e.g., a CMR) that may be associated with the virtual resource (e.g., the first reference signal resource). That is, UE 215 may expect network entity 205 to transmit a reference signal using the second reference signal resource that may be associated with the virtual resource. Thus, in some examples, actual measurement request 235 may indicate a request for network entity 205 to transmit a reference signal for actual measurement 250. In other words, actual measurement request 235 may indicate a first request to transmit an actual measurement report (e.g., second report 245) or a second request for a reference signal to be actually transmitted (e.g., for a predicted cycle, also known as a predicted opportunity), or both. That is, actual measurement request 235 may indicate a first request to transmit second report 245 or a second request for a reference signal to be actually transmitted, or both. In some examples, UE 215 may indicate actual measurement request 235 via an additional payload in first report 225. In some examples, such as in response to actual measurement request 235, UE 215 may be scheduled with uplink resources to send second report 245. That is, in response to actual measurement request 235, UE 215 may anticipate being scheduled with uplink resources to report such future channel characteristics. For example, in response to actual measurement request 235, UE 215 may receive uplink grant 240, which may indicate one or more uplink resources that UE 215 may use to send second report 245.
[0124] In some examples, device-triggered beam measurement reporting, as described herein, can provide improvements to beam management. For example, one or more aspects of device-triggered beam measurement reporting can provide a framework for AI / ML over air interfaces (e.g., wireless communications) that can result in improved performance and reduced complexity (e.g., of beam management). The framework can include beam prediction in the time domain or the spatial domain (or both), which can provide reduced overhead and latency as well as improved beam selection accuracy. In some examples, the framework can enable the use of AI / ML for characterization and baseline performance evaluation. Thus, the framework can provide AI / ML methods that can be relatively diverse and support constraints on the level of collaboration between the UE 215 and the network entity 205. In some examples, device-triggered beam measurement reporting, as described herein, can provide characterization of the lifecycle management of AI / ML models, including model training, model deployment, model inference, model monitoring, and model updates. In other words, device-triggered beam measurement reporting (e.g., UE-triggered actual beam measurement reporting) can be used for AI-based beam prediction performance monitoring.
[0125] Figure 3 An example of a reporting scheme 300 supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated. The reporting scheme 300 may be implemented or may be implemented to achieve or facilitate various aspects of the wireless communication system 100 and the wireless communication system 200. For example, the reporting scheme 300 may be implemented at a UE or a network entity, which may be a UE or a network entity. Figure 1 and Figure 2 Examples of corresponding devices are illustrated and described with reference to these two figures.
[0126] For example, as part of a beam management process at a network entity (or in order to improve the beam management process), the UE may report channel characteristics to the network entity. In some examples, the UE may report actual measured channel characteristics (e.g., actual channel measurements) to the network entity based on a triggering event. For example, the UE may report actual channel measurements associated with time domain (or spatial domain) beam prediction to the network entity based on a triggering event. That is, in a first report sent to the network entity during a reporting opportunity, the UE may report predicted channel characteristics (e.g., predicted channel measurements) for one or more predicted opportunities that occur after the reporting opportunity. In other words, the UE may report predicted channel characteristics for one or more future time domain opportunities in a single reporting opportunity, where the future time domain opportunity may occur after the reporting opportunity. Additionally, together with the report payload including the predicted channel characteristics, the UE may further indicate whether the actual measured channel characteristics associated with one or more future time domain opportunities in the future time domain opportunities may be further reported.
[0127] For example, the predicted channel characteristics may be reported via a CSI report, and the payload of the CSI report may include a bitmap, wherein each bit (e.g., included in the bitmap) may be associated with a corresponding future time domain opportunity for which the UE may have reported the predicted channel characteristics. In such an example, each bit (e.g., included in the bitmap) may indicate whether the actual measured channel characteristics associated with the corresponding future time domain opportunity may be reported. In some examples, the UE may replace the bitmap with a combined index (e.g., to reduce overhead). That is, the UE may use the bitmap or the combined index to indicate whether the actual measured channel characteristics associated with the future time domain opportunity may be reported.
[0128] like Figure 3 As illustrated in the example of , the UE may send a first report 315 (e.g., a CSI report) during a reporting opportunity 310. The first report 315 may indicate an actual measurement 320 and a predicted measurement 325-a, a predicted measurement 325-b, and a predicted measurement 325-c. The actual measurement 320 may be based on one or more measurements performed at the UE during the measurement opportunity 305. The predicted measurements 325 may each be associated with a corresponding reference signal resource and a corresponding predicted opportunity. That is, the predicted measurements 325 may each predict a measurement for the corresponding reference signal resource during the corresponding predicted opportunity. For example, the predicted measurement 325-a may be associated with the predicted opportunity 335-a, the predicted measurement 325-b may be associated with the predicted opportunity 335-b, and the predicted measurement 325-c may be associated with the predicted opportunity 335-c.
[0129] The payload of the first report 315 may include an indication of the actual measurement 320, an indication of the predicted measurement 325-a, an indication of the predicted measurement 325-b, an indication of the predicted measurement 325-c, and a bitmap (or combination index) that may indicate whether one or more actual measurements may be reported for one or more of the predicted measurements 325. For example, the payload may include a bit 330-a associated with the predicted measurement 325-a, a bit 330-b associated with the predicted measurement 325-b, and a bit 330-c associated with the predicted measurement 325-c. A bit having a value set to "0" may indicate a lack of a request to report an actual measurement for the corresponding predicted measurement. Additionally, a bit having a value set to "1" may indicate a request to report an actual measurement for the corresponding predicted measurement. Figure 3 As illustrated in the example of , bit 330 - a may have a value of 0, which may indicate a lack of a request to report an actual measurement for predicted measurement 325 - a. Similarly, bit 330 - c may have a value of 0 and indicate a lack of a request to report an actual measurement for predicted measurement 325 - c.
[0130] In some examples, the lack of a request for a predicted measurement to report an actual measurement may indicate that the predicted measurement failed to meet the trigger condition. For example, the UE may determine that predicted measurement 325-a and predicted measurement 325-c failed to meet the trigger condition. However, in some examples, the UE may determine that predicted measurement 325-b meets the trigger condition. In other words, the UE may identify a trigger event associated with predicted measurement 325-b. Therefore, the UE may set the value of bit 330-b to 1, so that bit 330-b indicates a request to report the actual measurement 340 associated with predicted measurement 325-b. In some examples, the request indicated via bit 330-b may be, for example, a request via Figure 2 An example of an actual measurement request is illustrated and described with reference to the figure. For example, the UE may include bits 330-b in the payload of the first report 315 to request that a second report 345 be sent that indicates actual measurements 340 performed at the UE during a predicted opportunity 335-b (e.g., a predicted opportunity associated with the predicted measurement 325-b).
[0131] In some examples, such as in response to sending first report 315, the UE may (e.g., may anticipate) being triggered by a second report 345 (e.g., an aperiodic CSI report) and reference signal resources (e.g., CMRs) associated with second report 345 to measure and feed back actual measured channel characteristics (e.g., actual measurement 340) for predicted opportunity 335-b. For example, in response to sending first report 315 indicating a request to send second report 345 (e.g., indicating actual measurement 340 associated with predicted measurement 325-b), the UE may receive an uplink grant from a network entity that triggers the UE to send second report 345. In some examples, the network entity may send the uplink grant via downlink control information (DCI). In some examples, the uplink grant may indicate uplink resources for the UE to send second report 345. In some examples, the network entity may trigger the UE to send the second report via one or more mechanisms, such as an aperiodic CSI report triggering mechanism. In some examples, the uplink resources may include time-domain resources that occur after predicted opportunity 335-b. That is, the UE may be configured to send the second report 345 after the predicted occasion 335 - b (eg, during which the UE may obtain the actual measurement 340 ).
[0132] Additionally, in some examples, the UE may be configured (e.g., triggered, scheduled) with reference signal resources (e.g., CMRs) for actual measurement 340. For example, the network entity may configure the UE with reference signal resources that the network entity may use to send reference signals to the UE (e.g., during predicted opportunity 335-b) and that the UE may use to perform actual measurement 340. For example, actual measurement 340 may be of a reference signal sent from the network entity via the reference signal resources. In some examples, predicted measurement 325-b may be associated with a virtual resource (e.g., may take into account the virtual resource). In such examples, the reference signal resource (e.g., CMR) associated with the second report 345 may be linked to the virtual resource (e.g., share one or more attributes with the virtual resource). That is, the UE may expect the CMR associated with the second report 345 to be linked to the virtual resource (e.g., in terms of beam shape or direction).
[0133] The triggering event associated with predicted measurement 325-b may be one of a plurality of types of events that trigger the UE to request reporting of actually measured channel characteristics for a future time domain opportunity (also referred to as a predicted opportunity). In some examples, the event that triggers the UE to request reporting of actually measured channel characteristics for a future time domain opportunity (such as predicted opportunity 335-b) may be hard-coded at the UE (e.g., based on a pre-defined configuration), based on a configuration from a network entity (e.g., a gNB configuration), or based on a recommendation from the UE (e.g., a UE recommendation), or any combination thereof.
[0134] In some examples, a triggering event associated with predicted measurement 325-b may include a value of predicted measurement 325-b associated with predicted opportunity 335-b being greater than a value of a second predicted measurement that may also be associated with predicted opportunity 335-b. That is, a triggering event associated with predicted measurement 325-b may include a value of predicted L1-RSRP or predicted L1-SINR of a first CMR associated with predicted opportunity 335-b being greater than a value of a second predicted L1-RSRP or second L1-SINR of a second CMR that may also be associated with predicted opportunity 335-b (e.g., may be associated with the same future time domain opportunity) (e.g., by a greater threshold amount (X)). For example, predicted measurement 325-b may be greater (e.g., stronger) by X decibels (dB) than the second predicted measurement. In other words, the triggering event may include a difference between predicted measurement 325-b and the second predicted measurement satisfying a first threshold. In some examples, the value of the first threshold (e.g., the value of X) may be hard-coded at the UE (e.g., based on a predefinition), based on a configuration from a network entity (e.g., a gNB configuration), or based on a recommendation from the UE (e.g., a UE recommendation), or any combination thereof.
[0135] In some examples, the second CMR may correspond to the CMR with the highest value in a relatively recent measurement occasion, excluding the first CMR. For example, the second CMR may correspond to the CMR with the strongest L1-RSRP or L1-SINR in a previous measurement occasion, excluding the first CMR. In other words, the first CMR may be different from other CMRs addressed in the previous measurement occasion (e.g., including the second CMR). For example, predicted measurement 325-b may be associated with the first CMR and may be based on actual measurement 320. Actual measurement 320 may be obtained at the UE during measurement occasion 305 and may correspond to the relatively highest measurement among predicted measurements 325 indicated to the network entity during reporting occasion 310. Additionally, a second predicted measurement may be associated with the second CMR and may be based on a second actual measurement obtained at the UE during a second measurement occasion (e.g., before measurement occasion 305). In such an example, the second predicted measurement may correspond to the relatively highest (e.g., largest, strongest) measurement among the measurements associated with the second measurement occasion. In other words, based on a second actual measurement obtained at the UE (e.g., associated with the second CMR) during a second measurement opportunity (e.g., before measurement opportunity 305), the UE may determine that the downlink beam corresponding to the second CMR is the strongest beam during prediction opportunity 335-b. Additionally, based on actual measurement 320 obtained at the UE during measurement opportunity 305 (e.g., associated with the first CMR), the UE may determine that another beam corresponding to the first CMR is the strongest beam during prediction opportunity 335-b. Therefore, the UE may request to obtain actual measurement 340 to confirm that the strongest beam during prediction opportunity 335-b has changed from the beam corresponding to the second CMR to the beam corresponding to the first CMR.
[0136] In some other examples, the second CMR associated with the second measurement may correspond to a source reference signal of a TCI state of a previously (e.g., relatively recently) scheduled downlink channel (such as a PDCCH or PDSCH). In some examples, the UE may report the actual measured channel characteristics together with (or separately from) the predicted channel characteristics, where the actual measured channel characteristics may be associated with a time domain opportunity that is prior to the future time domain opportunity associated with the predicted channel characteristics.
[0137] In some other examples, a triggering event associated with the predicted measurement 325-b (e.g., an event that triggers the UE to request reporting of the actual measurement 340) may include a confidence level associated with the predicted measurement 325-b (e.g., a predicted L1-RSRP or L1-SINR associated with the first CMR and for the predicted opportunity 335-b) satisfying a confidence level threshold. If the confidence level is less than (e.g., falls below) the confidence level threshold, the confidence level may satisfy the confidence level threshold. The confidence level threshold may correspond to a percentage or standard deviation (e.g., including or defined in terms of a percentage or standard deviation) of the predicted measurement (e.g., expressed in dBm). In some examples, the confidence level threshold may be hard-coded at the UE (e.g., based on a pre-defined value), based on a configuration from a network entity (e.g., a gNB configuration), or based on a recommendation from the UE (e.g., a UE recommendation), or any combination thereof. In some examples, requesting reporting of the actual measurement for the predicted measurement based on the predicted measurement satisfying the triggering condition may result in reduced overhead for CSI reporting, among other possible benefits.
[0138] Figure 4A and Figure 4B An example of a reporting format 400 supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated. The reporting format 400 (e.g., reporting format 400-a and reporting format 400-b) may implement or be implemented to achieve or facilitate aspects of the wireless communication system 100, the wireless communication system 200, and the reporting scheme 300. For example, the reporting format 400 may be implemented at a UE or a network entity, or both, which may be a UE or a network entity that is configured to receive a beam measurement report triggered by a device. Figures 1 to 3 Examples of corresponding devices are illustrated and described with reference to these figures.
[0139] A UE may support event-triggered actual beam measurement reporting for spatial domain beam prediction performance monitoring. In some examples, the UE may report channel characteristics for one or more reference signal resources from a relatively large number of reference signal resources, wherein a portion of the relatively large number of reference signal resources may not actually be measured by the UE. For example, the UE may report predicted channel characteristics, measured channel characteristics, or both for one or more CMRs from a relatively large number of r CMRs, wherein a portion of the relatively large number of CMRs may not actually be measured by the UE. That is, the UE may be configured with a set of CMRs that includes a relatively large number of CMRs (e.g., hundreds of CSI-RSs or SSBs), and measuring each CMR in the set of CMRs may result in increased power consumption at the UE. Therefore, the UE may avoid (e.g., may be unable to) perform actual measurements during each measurement opportunity associated with the set of CMRs. That is, the UE may measure a first portion of the set of CMRs and predict measurements (e.g., in the spatial domain) for a second portion of the configured set of CMRs. For example, the UE may measure one or more CMRs from a set of CMRs and predict measurements for the remaining CMRs in the configured set of CMRs. In other words, the UE may measure one or more CMRs and predict measurements for the remaining CMRs. Thus, the UE may send a report (e.g., a CSI report) that includes predicted measurements, actual measurements, or both predicted and actual measurements. Additionally, the UE may indicate to the network entity whether the report includes predicted measurements, actual measurements, or both. That is, along with the report payload, the UE may indicate whether the report payload is associated with actually measured channel characteristics (e.g., actual measurements), predicted channel characteristics (e.g., predicted measurements), or both.
[0140] In some examples, the UE may report channel characteristics via a CSI report in which the report payload may include a single bit or a combination index indicating whether to report actual measured channel characteristics or predicted channel characteristics. Figure 4A As illustrated in the example of , the UE may send report 415-a or report 415-b, each report including four RSRP measurement results (e.g., L1-RSRP measurement results) that may be indexed from 1 to 4. Each RSRP measurement may be associated with a corresponding CMR. For example, each RSRP measurement included in report 415-a and report 415-b may be associated with a corresponding CMR. The RSRP measurement results included in report 415-a may be predicted measurements. Therefore, report 415-a may include bit 405-a (or a combination index) indicating that the RSRP measurement included in report 415-a is a predicted measurement result. The RSRP measurement results included in report 415-b may be actual measurements. Therefore, report 415-b may include bit 405-b (or another combination index) indicating that the RSRP measurement included in report 415-b is an actual measurement result.
[0141] In some other examples, the UE may report channel characteristics via a CSI report in which the report payload includes a bitmap (or combination index). In such examples, each bit of the bitmap may be associated with a corresponding reference signal resource (e.g., CMR) addressed in the CSI report and may indicate whether actual measured channel characteristics or predicted channel characteristics are reported for the corresponding reference signal resource. Figure 4B As illustrated in the example of , the UE may transmit a report 415-c including four RSRP measurement results (e.g., L1-RSRP measurement results) that may be indexed from 1 to 4. Each RSRP measurement result may be associated with a corresponding reference signal resource. For example, each RSRP measurement included in report 415-c may be associated with a corresponding CMR. The RSRP measurement with index 1 (e.g., RSRP#1) and the RSRP measurement with index 3 (e.g., RSRP#3) may correspond to predicted measurement results. Therefore, bit 405-c associated with RSRP#1 and bit 405-e associated with RSRP#3 may each have a value set to 0. Additionally, the RSRP measurement with index 2 (e.g., RSRP#2) and the RSRP measurement with index 4 (e.g., RSRP#4) may correspond to actual measurement results. Therefore, bit 405-d associated with RSRP#2 and bit 405-f associated with RSRP#4 may each have a value set to 1. In this example, bits 405-c and 405-e may indicate that predicted RSRP measurement results (e.g., predicted channel characteristics) are reported for the corresponding CMR. That is, bits 405-c and 405-e may indicate that RSRP #1 and RSRP #3 correspond to predicted measurement results. Additionally, in this example, bits 405-d and 405-f may indicate that actual RSRP measurement results (e.g., actual measured channel characteristics) are reported for the corresponding CMR. That is, bits 405-d and 405-f may indicate that RSRP #1 and RSRP #4 correspond to actual RSRP measurement results.
[0142] In some examples, the UE may include predicted measurements or actual measurements based on a triggering event. The event that triggers the UE to report the actual measured channel characteristics (e.g., actual measurement) for the reference signal resources may be hard-coded at the UE (e.g., based on a predefined setting), based on a configuration from a network entity (e.g., a gNB configuration), or based on a recommendation from the UE (e.g., a UE recommendation), or any combination thereof. An example of a triggering event (e.g., an event that triggers the UE to report the actual measured channel characteristics) may include a predicted measurement (e.g., predicted L1-RSRP or L1-SINR) for a previous (e.g., relatively recent) reporting opportunity for the CMR meeting the triggering condition. In some examples, the predicted measurement may meet the triggering condition if the confidence level associated with the predicted measurement meets (e.g., falls below) a confidence level threshold. In some examples, the confidence level threshold may correspond to a percentage or standard deviation (e.g., including or defined in terms of a percentage or standard deviation) of the predicted measurement (e.g., expressed in dBm). In some examples, the confidence level threshold may be hard-coded at the UE (e.g., based on a pre-definition), based on a configuration from a network entity (e.g., a gNB configuration), or based on a recommendation from the UE (e.g., a UE recommendation), or any combination thereof.
[0143] although Figure 4A and Figure 4B The example of exemplifies the reported channel characteristic as RSRP measurement result, but the UE may report other types of channel characteristics, such as SINR measurement result (e.g., L1-SINR measurement result), RI, PMI or CQI, and other examples of channel characteristics. Additionally, although Figure 4A and Figure 4B The example of exemplifies four RSRP measurements included in each report in report 415, but the UE may report more or fewer than four measurements. In some examples, the UE may include an indication (e.g., a bitmap or combination index) of whether the reported channel characteristics are predicted channel characteristics or actual measured channel characteristics based on a request from a network entity. In some examples, indicating whether the reported channel characteristics are predicted channel characteristics or actual measured channel characteristics may result in improved performance of beam management, among other possible benefits.
[0144] Figure 5 An example of a process flow 500 supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated. The process flow 500 may implement or be implemented to achieve or facilitate aspects of the wireless communication system 100, the wireless communication system 200, the reporting scheme 300, and the reporting format 400. For example, the process flow 500 may be implemented at the UE 515 and the network entity 505, which may be implemented via Figures 1 to 3 、 Figure 4Aand Figure 4B Examples of corresponding devices described with reference to these figures are illustrated. Operations performed at UE 515 and network entity 505 may support improvements to communications between UE 515 and network entity 505, among other benefits. In the following description of process flow 500, operations performed at UE 515 and network entity 505 may be performed in an order different from the example order shown. Additionally, operations performed at UE 515 and network entity 505 may be performed at different times. Some operations may be combined, and some operations may be omitted. UE 515 and network entity 505 may support a framework for reporting actual channel measurements associated with time-domain (or spatial-domain) beam prediction based on a triggering event (such as when a predicted measurement satisfies a triggering condition).
[0145] At 525, the UE 515 may determine that the predicted channel measurement associated with the reference signal resource meets the triggering condition. The triggering condition may be Figure 2 、 Figure 3 、 Figure 4A and Figure 4B Examples of trigger conditions are illustrated and described with reference to these figures. For example, the trigger condition may correspond to a confidence level threshold. In such an example, the predicted measurement may satisfy the trigger condition based on the confidence level associated with the predicted measurement satisfying the confidence level threshold. The trigger condition may be identified at the UE 515.
[0146] For example, at 520, UE 515 may identify a triggering condition. In some examples, UE 515 may identify the triggering condition based on an indication received from network entity 505. For example, network entity 505 may indicate the triggering condition or a rule for determining the triggering condition to UE 515. In such an example, the indicated triggering condition may be based on a recommendation from UE 515. In some other examples, UE 515 may identify the triggering condition based on a configuration at UE 515. For example, UE 515 may be hard-coded with the triggering condition or the rule for determining the triggering condition. In some examples, UE 515 may send an indication of the triggering condition to network entity 505.
[0147] At 530, UE 515 may send a first report that includes an indication of the predicted channel measurement and a request to report the actual channel measurement associated with the predicted channel measurement. That is, the first report may include a request to send a second report indicating the actual channel measurement associated with the predicted channel measurement. In some examples, UE 515 may request to send the second report based on the predicted channel measurement satisfying a trigger condition.
[0148] At 535, UE 515 may receive an uplink grant from network entity 505 in response to the request. The uplink grant may be received via Figure 2An example of an uplink grant is illustrated and described with reference to the figure.For example, the uplink grant may indicate at least uplink resources for sending the second report.
[0149] At 540, the UE 515 may send a second report indicating the actual channel measurement to the network entity 505. The UE 515 may send the second report via uplink resources. The second report may be sent via Figure 2 and Figure 3 Examples of the second report are illustrated and discussed with reference to these two figures.For example, the second report may be an example of a CSI report, such as an aperiodic CSI report.
[0150] In some examples, the actual channel measurement may be for a reference signal sent from the network entity 505. For example, the UE 515 may receive a reference signal sent using a second reference signal resource from the network entity 505. The second reference signal resource may be associated with the reference signal resource. For example, the reference signal resource may be a virtual resource, and the second reference signal resource may be a CMR linked to (e.g., associated with) the virtual resource. In some examples, requesting reporting of the actual measurement for the predicted measurement based on the predicted measurement satisfying a trigger condition may result in improved performance of beam management, among other possible benefits.
[0151] Figure 6 An example of a process flow 600 for supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated. The process flow 600 may implement or be implemented to achieve or facilitate aspects of the wireless communication system 100, the wireless communication system 200, the reporting scheme 300, the reporting format 400, and the process flow 500. For example, the process flow 600 may be implemented at the UE 615 and the network entity 605, which may be implemented by Figures 1 to 3 、 Figure 4A 、 Figure 4B and Figure 5 Examples of corresponding devices described with reference to these figures are illustrated. The operations performed at the UE 615 and the network entity 605 may support improvements to communications between the UE 615 and the network entity 605, as well as other benefits. In the following description of process flow 600, the operations performed at the UE 615 and the network entity 605 may be performed in an order different from the example order shown. Additionally, the operations performed at the UE 615 and the network entity 605 may be performed at different times. Some operations may be combined, and some operations may be omitted. The UE 615 and the network entity 605 may support a framework for indicating whether the reported channel characteristics are predicted channel characteristics or actually measured channel characteristics.
[0152] At 625, UE 615 may send an indication of a first predicted channel measurement to network entity 605. For example, UE 615 may send a first report indicating at least a first predicted channel measurement that may be associated with a first reference signal resource in the set of reference signal resources.
[0153] At 630, UE 615 may determine whether the first predicted channel measurement satisfies a trigger condition. The trigger condition may be Figure 2 、 Figure 3 ,as well as Figure 4A and Figure 4B Examples of trigger conditions are illustrated and described with reference to these figures. For example, the trigger condition may correspond to a confidence level threshold. In such an example, the predicted measurement may satisfy the trigger condition based on the confidence level associated with the predicted measurement satisfying the confidence level threshold. The trigger condition may be identified at the UE 615.
[0154] For example, at 620, UE 615 may identify a triggering condition based on an indication received from network entity 605. For example, network entity 605 may indicate the triggering condition or a rule for determining the triggering condition to UE 615. In such an example, the indicated triggering condition may be based on a recommendation from UE 615. In some other examples, UE 615 may identify the triggering condition based on a configuration at UE 615. For example, UE 615 may be hard-coded with the triggering condition or the rule for determining the triggering condition. In some examples, UE 615 may send an indication of the triggering condition to network entity 605.
[0155] At 635, the UE 615 may send an indication of a second predicted channel measurement associated with the first predicted channel measurement or a first actual channel measurement associated with the first predicted channel measurement. For example, the UE 615 may send a second report indicating the channel measurement associated with the first reference signal resource to the network entity 605. The second report may also indicate whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement based on whether the first predicted channel measurement satisfies a trigger condition.
[0156] For example, UE 615 may determine (e.g., at 630) that the first predicted channel measurement fails to satisfy the trigger condition. In this example, based on the failure of the first predicted channel measurement to satisfy the trigger condition, UE 615 may send an indication of the actual channel measurement to network entity 605 (e.g., at 635). Thus, the second report may indicate that the first channel measurement includes the first actual channel measurement.
[0157] In some other examples, the UE 615 may determine (e.g., at 630) that the first predicted channel measurement satisfies the trigger condition. In such an example, based on the first predicted channel measurement satisfying the trigger condition, the UE 615 may send an indication of another predicted channel measurement to the network entity 605 (e.g., at 635). Thus, the second report may indicate that the first channel measurement includes the second predicted channel measurement. In some examples, indicating whether the reported channel characteristics are predicted channel characteristics or actual measured channel characteristics may result in improved performance of CSI reporting, among other possible benefits.
[0158] Figure 7 Diagram 700 illustrates a device 705 that supports device-triggered beam measurement reporting according to one or more aspects of the present disclosure. The device 705 can be an example of aspects of the UE 115 as described herein. The device 705 can include a receiver 710, a transmitter 715, and a communication manager 720. The device 705 can also include a processor. Each of these components can communicate with each other (e.g., via one or more buses).
[0159] The receiver 710 may provide means for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to device-triggered beam measurement reports). The information may be passed to other components of the device 705. The receiver 710 may utilize a single antenna or a collection of multiple antennas.
[0160] The transmitter 715 may provide means for transmitting signals generated by other components of the device 705. For example, the transmitter 715 may transmit information associated with various information channels (e.g., a control channel, a data channel, an information channel related to device-triggered beam measurement reports), such as packets, user data, control information, or any combination thereof. In some examples, the transmitter 715 may be co-located with the receiver 710 in a transceiver module. The transmitter 715 may utilize a single antenna, or a collection of multiple antennas.
[0161] The communication manager 720, the receiver 710, the transmitter 715, or various combinations thereof, or various components thereof, may be examples of means for performing various aspects of device-triggered beam measurement reporting as described herein. For example, the communication manager 720, the receiver 710, the transmitter 715, or various combinations thereof, or components thereof, may support methods for performing one or more of the functions described herein.
[0162] In some examples, the communication manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuit). The hardware may include a processor, a digital signal processor (DSP), a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a microcontroller, discrete gate or transistor logic components, discrete hardware components, or any combination thereof configured as or otherwise supporting components for performing the functions described herein. In some examples, the processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory by the processor).
[0163] Additionally or alternatively, in some examples, the communication manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the functionality of the communication manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be performed by a general-purpose processor (e.g., configured as or otherwise supporting means for performing the functions described herein), a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices.
[0164] In some examples, the communication manager 720 can be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with the receiver 710, the transmitter 715, or both. For example, the communication manager 720 can receive information from the receiver 710, transmit information to the transmitter 715, or be integrated with the receiver 710, the transmitter 715, or both to obtain information, output information, or perform various other operations as described herein.
[0165] According to examples as disclosed herein, the communication manager 720 can support wireless communications at a UE (e.g., device 705). For example, the communication manager 720 can be configured as or otherwise support means for sending a first report to a network entity, the first report indicating predicted channel measurements associated with reference signal resources. The communication manager 720 can be configured as or otherwise support means for determining that the predicted channel measurements satisfy a trigger condition, wherein the first report indicates a request to send a second report indicating actual channel measurements associated with the predicted channel measurements based on the predicted channel measurements satisfying the trigger condition. The communication manager 720 can be configured as or otherwise support means for receiving, in response to the request, a grant of at least uplink resources from the network entity for sending the second report.
[0166] Additionally or alternatively, the communication manager 720 may support wireless communications at a UE (e.g., device 705) according to examples as disclosed herein. For example, the communication manager 720 may be configured as or otherwise support means for sending a first report to a network entity, the first report indicating at least a first predicted channel measurement associated with a first reference signal resource in a set of reference signal resources. The communication manager 720 may be configured as or otherwise support means for determining whether the first predicted channel measurement meets a trigger condition. The communication manager 720 may be configured as or otherwise support means for sending a second report to the network entity, the second report indicating a first channel measurement associated with the first reference signal resource and indicating whether the first channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement meets the trigger condition.
[0167] By including or configuring a communication manager 720 according to examples as described herein, the device 705 (e.g., a processor controlling or otherwise coupled with the receiver 710, the transmitter 715, the communication manager 720, or a combination thereof) can support techniques for more efficiently utilizing communication resources.
[0168] Figure 8 Diagram 800 illustrates a device 805 that supports device-triggered beam measurement reporting according to one or more aspects of the present disclosure. Device 805 may be an example of aspects of device 705 or UE 115 as described herein. Device 805 may include a receiver 810, a transmitter 815, and a communication manager 820. Device 805 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).
[0169] The receiver 810 may provide means for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to device-triggered beam measurement reports). The information may be passed to other components of the device 805. The receiver 810 may utilize a single antenna or a collection of multiple antennas.
[0170] The transmitter 815 may provide means for transmitting signals generated by other components of the device 805. For example, the transmitter 815 may transmit information associated with various information channels (e.g., a control channel, a data channel, an information channel related to device-triggered beam measurement reports), such as packets, user data, control information, or any combination thereof. In some examples, the transmitter 815 may be co-located with the receiver 810 in a transceiver module. The transmitter 815 may utilize a single antenna, or a collection of multiple antennas.
[0171] The device 805 or its various components can be examples of means for performing various aspects of device-triggered beam measurement reporting as described herein. For example, the communication manager 820 can include a first reporting component 825, a triggering component 830, a second reporting component 835, or any combination thereof. The communication manager 820 can be an example of aspects of the communication manager 720 as described herein. In some examples, the communication manager 820 or its various components can be configured to use or otherwise cooperate with the receiver 810, the transmitter 815, or both to perform various operations (e.g., receive, obtain, monitor, output, transmit). For example, the communication manager 820 can receive information from the receiver 810, transmit information to the transmitter 815, or be integrated with the receiver 810, the transmitter 815, or both to obtain information, output information, or perform various other operations as described herein.
[0172] According to examples as disclosed herein, a communication manager 820 can support wireless communications at a UE (e.g., device 805). A first reporting component 825 can be configured as or otherwise support means for sending a first report to a network entity, the first report indicating predicted channel measurements associated with reference signal resources. A triggering component 830 can be configured as or otherwise support means for determining that the predicted channel measurements satisfy a trigger condition, wherein the first report indicates a request to send a second report indicating actual channel measurements associated with the predicted channel measurements based on the predicted channel measurements satisfying the trigger condition. A second reporting component 835 can be configured as or otherwise support means for receiving, in response to the request, a grant of at least uplink resources from the network entity for sending the second report.
[0173] Additionally or alternatively, the communication manager 820 may support wireless communications at a UE (e.g., device 805) according to examples as disclosed herein. A first reporting component 825 may be configured as or otherwise support means for sending a first report to a network entity, the first report indicating at least a first predicted channel measurement associated with a first reference signal resource in a set of reference signal resources. A triggering component 830 may be configured as or otherwise support means for determining whether the first predicted channel measurement meets a trigger condition. A second reporting component 835 may be configured as or otherwise support means for sending a second report to the network entity, the second report indicating a first channel measurement associated with the first reference signal resource and indicating whether the first channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement meets the trigger condition.
[0174] Figure 9 900 illustrates a communication manager 920 that supports device-triggered beam measurement reporting in accordance with one or more aspects of the present disclosure. The communication manager 920 can be an example of aspects of the communication manager 720, the communication manager 820, or both as described herein. The communication manager 920 or its various components can be examples of means for performing various aspects of device-triggered beam measurement reporting as described herein. For example, the communication manager 920 can include a first reporting component 925, a triggering component 930, a second reporting component 935, a reference signal component 940, a trigger identification component 945, a confidence level component 950, or any combination thereof. Each of these components can communicate with each other directly or indirectly (e.g., via one or more buses).
[0175] According to examples as disclosed herein, a communication manager 920 can support wireless communications at a UE. A first reporting component 925 can be configured as or otherwise support means for sending a first report to a network entity, the first report indicating predicted channel measurements associated with reference signal resources. A triggering component 930 can be configured as or otherwise support means for determining that the predicted channel measurements satisfy a trigger condition, wherein the first report indicates a request to send a second report indicating actual channel measurements associated with the predicted channel measurements based on the predicted channel measurements satisfying the trigger condition. A second reporting component 935 can be configured as or otherwise support means for receiving, in response to the request, a grant of at least uplink resources from the network entity for sending the second report.
[0176] In some examples, to support sending the first report, first reporting component 925 may be configured as or otherwise support means for sending the first report during a first duration, where the predicted channel measurement is associated with a second duration following the first duration.
[0177] In some examples, reference signal component 940 can be configured as or otherwise support means for receiving a reference signal from a network entity that is sent using a second reference signal resource associated with the reference signal resource. In some examples, second reporting component 935 can be configured as or otherwise support means for sending a second report to the network entity using uplink resources indicating an actual channel measurement associated with a predicted channel measurement, where the actual channel measurement is for the reference signal. In some examples, the reference signal resource comprises a virtual resource. In some examples, the second reference signal resource comprises a CMR.
[0178] In some examples, trigger identification component 945 can be configured as or otherwise support means for identifying a trigger condition, wherein determining that the predicted channel measurement satisfies the trigger condition is based on identifying the trigger condition. In some examples, trigger identification component 945 can be configured as or otherwise support means for receiving an indication of the trigger condition from a network entity, wherein identifying the trigger condition is based on the received indication. In some examples, trigger identification component 945 can be configured as or otherwise support means for sending an indication of the identified trigger condition to a network entity.
[0179] In some examples, to support determining that a predicted channel measurement satisfies a trigger condition, trigger component 930 may be configured as or otherwise support a component for determining that a difference between a predicted channel measurement and a second predicted channel measurement associated with a second reference signal resource satisfies a threshold, wherein the predicted channel measurement and the second predicted channel measurement are associated with the same duration.
[0180] In some examples, the first report indicates a set of multiple actual channel measurements associated with a set of multiple reference signal resources including the second reference signal resource. In some examples, the second reference signal resource corresponds to the strongest channel measurement in the set of multiple actual channel measurements.
[0181] In some examples, the second reference signal resource corresponds to a TCI state associated with a previously scheduled PDCCH transmission or a previously scheduled PDSCH transmission. In some examples, to support determining that the predicted channel measurement meets the trigger condition, confidence level component 950 can be configured as or otherwise support means for determining that a confidence level associated with the predicted channel measurement meets a threshold.
[0182] In some examples, the first report includes a bitmap or combination index indicating the request. In some examples, the first report includes a periodic CSI report and the second report includes an aperiodic CSI report. In some examples, the reference signal resource includes a CMR.
[0183] Additionally or alternatively, according to examples as disclosed herein, the communication manager 920 may support wireless communication at the UE. In some examples, the first reporting component 925 may be configured as or otherwise support a component for sending a first report to a network entity, the first report indicating at least a first predicted channel measurement associated with a first reference signal resource in a set of reference signal resources. In some examples, the triggering component 930 may be configured as or otherwise support a component for determining whether the first predicted channel measurement meets a trigger condition. In some examples, the second reporting component 935 may be configured as or otherwise support a component for sending a second report to the network entity, the second report indicating a first channel measurement associated with the first reference signal resource and indicating whether the first channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement meets the trigger condition.
[0184] In some examples, to support determining whether the first predicted channel measurement satisfies a trigger condition, the trigger component 930 may be configured as or otherwise support a component for determining that the first predicted channel measurement fails to satisfy the trigger condition, wherein based on the first predicted channel measurement failing to satisfy the trigger condition, the second report indicates that the first channel measurement includes a first actual channel measurement.
[0185] In some examples, to support determining whether the first predicted channel measurement satisfies a trigger condition, the trigger component 930 may be configured as or otherwise support a component for determining that the first predicted channel measurement satisfies the trigger condition, wherein based on the first predicted channel measurement satisfying the trigger condition, the second report indicates that the first channel measurement includes the second predicted channel measurement.
[0186] In some examples, to support sending the second report, second reporting component 935 may be configured as or otherwise support means for sending a bit indicating whether the first channel measurement includes a predicted channel measurement or an actual channel measurement.
[0187] In some examples, to support sending the second report, second reporting component 935 can be configured as or otherwise support means for sending a first indication of whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement. In some examples, to support sending the second report, second reporting component 935 can be configured as or otherwise support means for sending a second indication of whether the second channel measurement includes the third predicted channel measurement or the second actual channel measurement.
[0188] In some examples, the first indication includes a first bit or a first combination index associated with a first channel measurement, and the second indication includes a second bit or a second combination index associated with a second channel measurement.
[0189] In some examples, to support determining whether the first predicted channel measurement satisfies a trigger condition, confidence level component 950 can be configured as or otherwise support means for determining that a confidence level associated with the first predicted channel measurement satisfies a threshold.
[0190] In some examples, trigger identification component 945 can be configured as or otherwise support means for identifying a trigger condition, wherein determining that the first predicted channel measurement satisfies the trigger condition is based on identifying the trigger condition.
[0191] In some examples, trigger identification component 945 can be configured as or otherwise support means for receiving an indication of a trigger condition from a network entity, wherein identifying the trigger condition is based on the received indication.
[0192] In some examples, trigger identification component 945 may be configured as or otherwise support means for sending an indication of the identified trigger condition to a network entity.
[0193] Figure 10 A diagram of a system 1000 including a device 1005 supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated. The device 1005 may be an example of, or include components of, a device 705, a device 805, or a UE 115 as described herein. The device 1005 may communicate (e.g., wirelessly) with one or more network entities 105, one or more UEs 115, or any combination thereof. The device 1005 may include components for two-way voice and data communication, including components for sending and receiving communications, such as a communication manager 1020, an input / output (I / O) controller 1010, a transceiver 1015, an antenna 1025, a memory 1030, code 1035, and a processor 1040. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 1045).
[0194] I / O controller 1010 can manage input and output signals for device 1005. I / O controller 1010 can also manage peripheral devices that are not integrated into device 1005. In some cases, I / O controller 1010 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1010 can utilize an operating system such as MS- or another known operating system. Additionally or alternatively, I / O controller 1010 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 1010 may be implemented as part of a processor, such as processor 1040. In some cases, a user may interact with device 1005 via I / O controller 1010 or via hardware components controlled by I / O controller 1010.
[0195] In some cases, the device 1005 may include a single antenna 1025. However, in some other cases, the device 1005 may have more than one antenna 1025, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 1015 may communicate bidirectionally via one or more antennas 1025, a wired link, or a wireless link as described herein. For example, the transceiver 1015 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1015 may also include a modem for modulating packets; providing the modulated packets to the one or more antennas 1025 for transmission; and demodulating packets received from the one or more antennas 1025. The transceiver 1015, or the transceiver 1015 and the one or more antennas 1025, may be examples of the transmitter 715, the transmitter 815, the receiver 710, the receiver 810, or any combination thereof, or components thereof, as described herein.
[0196] Memory 1030 may include random access memory (RAM) and read-only memory (ROM). Memory 1030 may store computer-readable, computer-executable code 1035 including instructions that, when executed by processor 1040, cause device 1005 to perform the various functions described herein. Code 1035 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, code 1035 may not be directly executable by processor 1040, but may (e.g., when compiled and executed) cause a computer to perform the functions described herein. In some cases, memory 1030 may also contain, among other things, a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.
[0197] The processor 1040 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 1040 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 1040. The processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1030) to cause the device 1005 to perform various functions (e.g., functions or tasks that support device-triggered beam measurement reporting). For example, the device 1005 or a component of the device 1005 may include the processor 1040 and the memory 1030 coupled to or coupled to the processor 1040, the processor 1040 and the memory 1030 being configured to perform the various functions described herein.
[0198] According to examples as disclosed herein, the communication manager 1020 can support wireless communications at a UE (e.g., device 1005). For example, the communication manager 1020 can be configured as or otherwise support means for sending a first report to a network entity, the first report indicating predicted channel measurements associated with reference signal resources. The communication manager 1020 can be configured as or otherwise support means for determining that the predicted channel measurements satisfy a trigger condition, wherein the first report indicates a request to send a second report indicating actual channel measurements associated with the predicted channel measurements based on the predicted channel measurements satisfying the trigger condition. The communication manager 1020 can be configured as or otherwise support means for receiving, in response to the request, a grant of at least uplink resources from the network entity for sending the second report.
[0199] Additionally or alternatively, the communication manager 1020 may support wireless communications at a UE (e.g., device 1005) according to examples as disclosed herein. For example, the communication manager 1020 may be configured as or otherwise support means for sending a first report to a network entity, the first report indicating at least a first predicted channel measurement associated with a first reference signal resource in a set of reference signal resources. The communication manager 1020 may be configured as or otherwise support means for determining whether the first predicted channel measurement meets a trigger condition. The communication manager 1020 may be configured as or otherwise support means for sending a second report to the network entity, the second report indicating a first channel measurement associated with the first reference signal resource and indicating whether the first channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement meets the trigger condition.
[0200] By including or configuring a communication manager 1020 according to examples as described herein, the device 1005 can support techniques for improving communication reliability, reducing latency, improving user experience related to reduced processing, more efficiently utilizing communication resources, and improving coordination between devices.
[0201] In some examples, the communication manager 1020 can be configured to perform various operations (e.g., receive, monitor, transmit) using or otherwise coordinating with the transceiver 1015, one or more antennas 1025, or any combination thereof. Although the communication manager 1020 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 1020 can be supported or performed by the processor 1040, the memory 1030, the code 1035, or any combination thereof. For example, the code 1035 can include instructions that are executable by the processor 1040 to cause the device 1005 to perform various aspects of device-triggered beam measurement reporting as described herein, or the processor 1040 and the memory 1030 can be otherwise configured to perform or support such operations.
[0202] Figure 11 Diagram 1100 illustrates a device 1105 that supports device-triggered beam measurement reporting according to one or more aspects of the present disclosure. Device 1105 may be an example of aspects of network entity 105 as described herein. Device 1105 may include a receiver 1110, a transmitter 1115, and a communication manager 1120. Device 1105 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).
[0203] Receiver 1110 may provide means for obtaining (e.g., receiving, determining, identifying) information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). The information may be communicated to other components of device 1105. In some examples, receiver 1110 may support obtaining information by receiving signals via one or more antennas. Additionally or alternatively, receiver 1110 may support obtaining information by receiving signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof.
[0204] The transmitter 1115 may provide means for outputting (e.g., transmitting, providing, conveying, transmitting) information generated by other components of the device 1105. For example, the transmitter 1115 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some examples, the transmitter 1115 may support outputting information by transmitting signals via one or more antennas. Additionally or alternatively, the transmitter 1115 may support outputting information by transmitting signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 1115 and the receiver 1110 may be co-located in a transceiver, which may include a modem or be coupled to a modem.
[0205] The communication manager 1120, the receiver 1110, the transmitter 1115, or various combinations thereof, or various components thereof, may be examples of means for performing various aspects of device-triggered beam measurement reporting as described herein. For example, the communication manager 1120, the receiver 1110, the transmitter 1115, or various combinations thereof, or components thereof, may support methods for performing one or more of the functions described herein.
[0206] In some examples, the communication manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof can be implemented in hardware (e.g., in a communication management circuit). The hardware can include a processor, a DSP, a CPU, an ASIC, an FPGA or other programmable logic device, a microcontroller, discrete gate or transistor logic components, discrete hardware components, or any combination thereof configured as or otherwise supporting components for performing the functions described in this disclosure. In some examples, the processor and a memory coupled to the processor can be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory by the processor).
[0207] Additionally or alternatively, in some examples, the communication manager 1120, receiver 1110, transmitter 1115, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the functionality of the communication manager 1120, receiver 1110, transmitter 1115, or various combinations or components thereof may be performed by a general-purpose processor (e.g., configured as or otherwise supporting means for performing the functions described in this disclosure), a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices.
[0208] In some examples, communication manager 1120 can be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with receiver 1110, transmitter 1115, or both. For example, communication manager 1120 can receive information from receiver 1110, transmit information to transmitter 1115, or be integrated with receiver 1110, transmitter 1115, or both to obtain information, output information, or perform various other operations as described herein.
[0209] According to examples as disclosed herein, the communication manager 1120 can support wireless communications at a network entity (e.g., device 1105). For example, the communication manager 1120 can be configured as or otherwise support means for obtaining a first report indicating a predicted channel measurement and a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement, wherein the predicted channel measurement is associated with a reference signal resource, and wherein the request is based on the predicted channel measurement satisfying a trigger condition. The communication manager 1120 can be configured as or otherwise support means for outputting, in response to the request, a grant of at least uplink resources to be used for sending the second report. The communication manager 1120 can be configured as or otherwise support means for obtaining, based on the output grant, a second report indicating the actual channel measurement associated with the predicted channel measurement.
[0210] Additionally or alternatively, the communication manager 1120 may support wireless communications at a network entity (e.g., device 1105) according to examples as disclosed herein. For example, the communication manager 1120 may be configured as or otherwise support means for obtaining a first report indicating at least a first predicted channel measurement associated with a reference signal resource in a set of reference signal resources. The communication manager 1120 may be configured as or otherwise support means for obtaining a second report indicating a channel measurement associated with the reference signal resource and indicating whether the channel measurement comprises a second predicted channel measurement or a first actual channel measurement, wherein whether the channel measurement comprises the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement satisfies a trigger condition.
[0211] By including or configuring a communication manager 1120 according to examples as described herein, a device 1105 (e.g., a processor controlling or otherwise coupled with a receiver 1110, a transmitter 1115, the communication manager 1120, or a combination thereof) may support techniques for more efficiently utilizing communication resources.
[0212] Figure 12Diagram 1200 illustrates a device 1205 that supports device-triggered beam measurement reporting according to one or more aspects of the present disclosure. Device 1205 may be an example of aspects of device 1105 or network entity 105 as described herein. Device 1205 may include a receiver 1210, a transmitter 1215, and a communication manager 1220. Device 1205 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).
[0213] Receiver 1210 may provide means for obtaining (e.g., receiving, determining, identifying) information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). The information may be communicated to other components of device 1205. In some examples, receiver 1210 may support obtaining information by receiving signals via one or more antennas. Additionally or alternatively, receiver 1210 may support obtaining information by receiving signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof.
[0214] The transmitter 1215 may provide means for outputting (e.g., transmitting, providing, conveying, transmitting) information generated by other components of the device 1205. For example, the transmitter 1215 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some examples, the transmitter 1215 may support outputting information by transmitting signals via one or more antennas. Additionally or alternatively, the transmitter 1215 may support outputting information by transmitting signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 1215 and the receiver 1210 may be co-located in a transceiver, which may include a modem or be coupled to a modem.
[0215] Device 1205 or its various components can be examples of means for performing various aspects of device-triggered beam measurement reporting as described herein. For example, communications manager 1220 can include report request component 1225, grant component 1230, actual measurement component 1235, predicted measurement component 1240, measurement indication component 1245, or any combination thereof. Communications manager 1220 can be an example of aspects of communications manager 1120 as described herein. In some examples, communications manager 1220 or its various components can be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise coordinating with receiver 1210, transmitter 1215, or both. For example, communications manager 1220 can receive information from receiver 1210, transmit information to transmitter 1215, or be integrated with receiver 1210, transmitter 1215, or both to obtain information, output information, or perform various other operations as described herein.
[0216] According to examples as disclosed herein, communication manager 1220 can support wireless communications at a network entity (e.g., device 1205). Report request component 1225 can be configured as or otherwise support means for obtaining a first report indicating a predicted channel measurement and a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement, wherein the predicted channel measurement is associated with a reference signal resource, and wherein the request is based on the predicted channel measurement satisfying a trigger condition. Grant component 1230 can be configured as or otherwise support means for outputting, in response to the request, a grant of at least uplink resources to be used for sending the second report. Actual measurement component 1235 can be configured as or otherwise support means for obtaining, based on the output grant, a second report indicating the actual channel measurement associated with the predicted channel measurement.
[0217] Additionally or alternatively, the communication manager 1220 can support wireless communications at a network entity (e.g., device 1205) according to examples as disclosed herein. The predicted measurement component 1240 can be configured as or otherwise support means for obtaining a first report indicating at least a first predicted channel measurement associated with a reference signal resource in a set of reference signal resources. The measurement indication component 1245 can be configured as or otherwise support means for obtaining a second report indicating a channel measurement associated with the reference signal resource and indicating whether the channel measurement comprises a second predicted channel measurement or a first actual channel measurement, wherein whether the channel measurement comprises the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement satisfies a trigger condition.
[0218] Figure 13Diagram 1300 illustrates a communication manager 1320 that supports device-triggered beam measurement reporting in accordance with one or more aspects of the present disclosure. Communication manager 1320 can be an example of communication manager 1120, communication manager 1220, or aspects of both as described herein. Communication manager 1320 or its various components can be examples of means for performing various aspects of device-triggered beam measurement reporting as described herein. For example, communication manager 1320 can include a report request component 1325, a grant component 1330, an actual measurement component 1335, a predicted measurement component 1340, a measurement indication component 1345, a reference signal resource component 1350, or any combination thereof. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses), which communication may include communication within a protocol layer of a protocol stack, communication associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack, within a device, component, or virtualized component associated with the network entity 105, between devices, components, or virtualized components associated with the network entity 105), or any combination thereof.
[0219] According to examples as disclosed herein, communication manager 1320 can support wireless communications at a network entity. Report request component 1325 can be configured as or otherwise support means for obtaining a first report indicating a predicted channel measurement and a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement, wherein the predicted channel measurement is associated with a reference signal resource, and wherein the request is based on the predicted channel measurement satisfying a trigger condition. Grant component 1330 can be configured as or otherwise support means for outputting, in response to the request, a grant of at least uplink resources to be used for sending the second report. Actual measurement component 1335 can be configured as or otherwise support means for obtaining, based on the output grant, a second report indicating the actual channel measurement associated with the predicted channel measurement.
[0220] In some examples, the predicted channel measurement is associated with a duration, and the reference signal resource component 1350 can be configured as or otherwise support means for outputting a reference signal using a second reference signal resource associated with the reference signal resource, wherein the actual channel measurement is for the reference signal.
[0221] In some examples, the reference signal resource comprises a virtual resource. In some examples, the second reference signal resource comprises a CMR. In some examples, the first report comprises a bitmap or a combination index indicating the request.
[0222] Additionally or alternatively, according to examples as disclosed herein, communication manager 1320 can support wireless communications at a network entity. Predicted measurement component 1340 can be configured as or otherwise support means for obtaining a first report indicating at least a first predicted channel measurement associated with a reference signal resource in a set of reference signal resources. Measurement indication component 1345 can be configured as or otherwise support means for obtaining a second report indicating a channel measurement associated with the reference signal resource and indicating whether the channel measurement comprises a second predicted channel measurement or a first actual channel measurement, wherein whether the channel measurement comprises the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement satisfies a trigger condition.
[0223] In some examples, to support sending the second report, predicted measurement component 1340 can be configured as or otherwise support means for obtaining one or more bits indicating whether the channel measurement includes the second predicted channel measurement or the first actual channel measurement.
[0224] Figure 14 A diagram of a system 1400 including a device 1405 supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated. The device 1405 can be an example of, or include a component of, a device 1105, a device 1205, or a network entity 105 as described herein. The device 1405 can communicate with one or more network entities 105, one or more UEs 115, or any combination thereof, which communication can include communication via one or more wired interfaces, via one or more wireless interfaces, or any combination thereof. The device 1405 can include components that support outgoing and incoming communications, such as a communication manager 1420, a transceiver 1410, an antenna 1415, a memory 1425, code 1430, and a processor 1435. These components can be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., bus 1440).
[0225] The transceiver 1410 may support bidirectional communication via a wired link, a wireless link, or both as described herein. In some examples, the transceiver 1410 may include a wired transceiver and may communicate bidirectionally with another wired transceiver. Additionally or alternatively, in some examples, the transceiver 1410 may include a wireless transceiver and may communicate bidirectionally with another wireless transceiver. In some examples, the device 1405 may include one or more antennas 1415, which may be capable of transmitting or receiving wireless transmissions (e.g., concurrently). The transceiver 1410 may also include a modem for: modulating a signal; providing the modulated signal for transmission (e.g., via one or more antennas 1415, via a wired transmitter); receiving the modulated signal (e.g., from one or more antennas 1415, from a wired receiver); and demodulating the signal. In some implementations, the transceiver 1410 may include one or more interfaces, such as one or more interfaces coupled to one or more antennas 1415 configured to support various receive or obtain operations, or one or more interfaces coupled to one or more antennas 1415 configured to support various transmit or output operations, or a combination thereof. In some implementations, the transceiver 1410 may include or be configured to be coupled to one or more processors or memory components operable to perform or support operations based on received or obtained information or signals, or to generate information or other signals for transmission or other output, or any combination thereof. In some implementations, the transceiver 1410, or the transceiver 1410 and one or more antennas 1415, or the transceiver 1410 and one or more antennas 1415 and one or more processors or memory components (e.g., processor 1435 or memory 1425 or both) may be included in a chip or chip assembly installed in the device 1405. In some examples, the transceiver may be operable to support communications via one or more communication links (eg, communication link 125 , backhaul communication link 120 , midhaul communication link 162 , fronthaul communication link 168 ).
[0226] Memory 1425 may include RAM and ROM. Memory 1425 may store computer-readable, computer-executable code 1430 including instructions that, when executed by processor 1435, cause device 1405 to perform the various functions described herein. Code 1430 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, code 1430 may not be directly executable by processor 1435, but may (e.g., when compiled and executed) cause a computer to perform the functions described herein. In some cases, memory 1425 may also contain, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.
[0227] The processor 1435 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA, a microcontroller, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 1435 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 1435. The processor 1435 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1425) to cause the device 1405 to perform various functions (e.g., functions or tasks that support device-triggered beam measurement reporting). For example, the device 1405 or a component of the device 1405 may include a processor 1435 and a memory 1425 coupled to the processor 1435, the processor 1435 and the memory 1425 being configured to perform the various functions described herein. Processor 1435 may be an example of a cloud computing platform (e.g., one or more physical nodes and supporting software (such as an operating system, virtual machine, or container instance)) that can host functionality (e.g., by executing code 1430) to perform the functions of device 1405. Processor 1435 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in device 1405 (such as within memory 1425). In some implementations, processor 1435 may be a component of a processing system. A processing system may generally refer to a system or series of machines or components that receives inputs and processes those inputs to produce a set of outputs (which may be passed to, for example, other systems or components of device 1405). For example, a processing system of device 1405 may refer to a system that includes various other components or subcomponents of device 1405, such as processor 1435, or transceiver 1410, or communication manager 1420, or other components or combinations of components of device 1405. The processing system of device 1405 can be docked with other components of device 1405 and can process information (such as input or signals) received from other components or output information to other components. For example, the chip or modem of device 1405 may include a processing system and one or more interfaces for outputting information or for obtaining information or both. The one or more interfaces may be implemented as or otherwise include a first interface configured to output information and a second interface configured to obtain information or the same interface configured to output information and obtain information, as well as other specific implementations. In some specific implementations, the one or more interfaces may refer to an interface between the processing system of the chip or modem and a transmitter, so that the device 1405 can send information output from the chip or modem. Additionally or alternatively, in some specific implementations, the one or more interfaces may refer to an interface between the processing system of the chip or modem and a receiver, so that the device 1405 can obtain information or signal input, and the information can be passed to the processing system.One of ordinary skill in the art will readily recognize that the first interface may also obtain information or signal input, and the second interface may also output information or signal output.
[0228] In some examples, bus 1440 may support communications for protocol layers of a protocol stack (e.g., within a protocol layer). In some examples, bus 1440 may support communications associated with logical channels of a protocol stack (e.g., between protocol layers of a protocol stack), which may include communications performed within components of device 1405 or between different components of device 1405 that may be co-located or located in different locations (e.g., where device 1405 may refer to a system in which one or more of communication manager 1420, transceiver 1410, memory 1425, code 1430, and processor 1435 may be located in one of the different components or divided between the different components).
[0229] In some examples, communication manager 1420 can manage aspects of communications with core network 130 (e.g., via one or more wired or wireless backhaul links). For example, communication manager 1420 can manage the transfer of data communications for client devices, such as one or more UEs 115. In some examples, communication manager 1420 can manage communications with other network entities 105 and can include a controller or scheduler for controlling communications with UEs 115 in coordination with other network entities 105. In some examples, communication manager 1420 can support an X2 interface within LTE / LTE-A wireless communication network technology to provide communications between network entities 105.
[0230] According to examples as disclosed herein, the communication manager 1420 can support wireless communications at a network entity (e.g., device 1405). For example, the communication manager 1420 can be configured as or otherwise support means for obtaining a first report indicating a predicted channel measurement and a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement, wherein the predicted channel measurement is associated with a reference signal resource, and wherein the request is based on the predicted channel measurement satisfying a trigger condition. The communication manager 1420 can be configured as or otherwise support means for outputting, in response to the request, a grant of at least uplink resources to be used for sending the second report. The communication manager 1420 can be configured as or otherwise support means for obtaining, based on the output grant, a second report indicating the actual channel measurement associated with the predicted channel measurement.
[0231] Additionally or alternatively, the communication manager 1420 may support wireless communications at a network entity (e.g., device 1405) according to examples as disclosed herein. For example, the communication manager 1420 may be configured as or otherwise support means for obtaining a first report indicating at least a first predicted channel measurement associated with a reference signal resource in a set of reference signal resources. The communication manager 1420 may be configured as or otherwise support means for obtaining a second report indicating a channel measurement associated with the reference signal resource and indicating whether the channel measurement comprises a second predicted channel measurement or a first actual channel measurement, wherein whether the channel measurement comprises the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement satisfies a trigger condition.
[0232] By including or configuring a communication manager 1420 according to examples as described herein, the device 1405 can support techniques for improving communication reliability, reducing latency, more efficiently utilizing communication resources, and improving coordination between devices.
[0233] In some examples, the communication manager 1420 can be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise coordinating with the transceiver 1410, one or more antennas 1415 (e.g., where applicable), or any combination thereof. Although the communication manager 1420 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 1420 can be supported or performed by the transceiver 1410, the processor 1435, the memory 1425, the code 1430, or any combination thereof. For example, the code 1430 can include instructions that are executable by the processor 1435 to cause the device 1405 to perform various aspects of device-triggered beam measurement reporting as described herein, or the processor 1435 and the memory 1425 can be otherwise configured to perform or support such operations.
[0234] Figure 15 A flowchart illustrating a method 1500 for supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated. The operations of the method 1500 may be implemented by a UE or a component thereof as described herein. For example, the operations of the method 1500 may be implemented by a UE or a component thereof as described herein. Figures 1 to 10 The UE 115 described herein performs the functions described herein. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described herein.
[0235] At 1505, the method may include sending a first report to a network entity, the first report indicating predicted channel measurements associated with reference signal resources. The operations of 1505 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1505 may be performed by a method as described in reference to Figure 9 The first reporting component 925 is described as executing.
[0236] At 1510, the method may include determining that the predicted channel measurement satisfies a trigger condition, wherein the first report indicates a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement based on the predicted channel measurement satisfying the trigger condition. The operations of 1510 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1510 may be performed as described in reference to Figure 9 The trigger component 930 is described as executing.
[0237] At 1515, the method may include receiving, in response to the request, a grant of at least uplink resources from the network entity for sending the second report. The operations of 1515 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1515 may be performed as described with reference to Figure 9 The second reporting component 935 is described as executing.
[0238] Figure 16 A flowchart illustrating a method 1600 for supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated. The operations of the method 1600 may be implemented by a UE or a component thereof as described herein. For example, the operations of the method 1600 may be implemented by a UE or a component thereof as described herein. Figures 1 to 10 The UE 115 described herein performs the functions described herein. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described herein.
[0239] At 1605, the method may include sending a first report to a network entity, the first report indicating at least a first predicted channel measurement associated with a first reference signal resource in a set of reference signal resources. The operations of 1605 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1605 may be performed by a method as disclosed herein. Figure 9 The first reporting component 925 is described as executing.
[0240] At 1610, the method may include determining whether the first predicted channel measurement satisfies a trigger condition. The operations of 1610 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1610 may be performed as described in reference to Figure 9 The trigger component 930 is described as executing.
[0241] At 1615, the method may include: sending a second report to a network entity, the second report indicating a first channel measurement associated with the first reference signal resource and indicating whether the first channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement meets a trigger condition. The operations of 1615 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1615 may be performed by a method as described in reference to Figure 9 The second reporting component 935 is described as executing.
[0242] Figure 17 A flowchart illustrating a method 1700 for supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated. The operations of the method 1700 may be implemented by a network entity or component thereof as described herein. For example, the operations of the method 1700 may be implemented by a network entity or component thereof as described herein. Figures 1 to 6 as well as Figures 11 to 14 The network entity described herein performs. In some examples, the network entity may execute an instruction set to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform various aspects of the described functions.
[0243] At 1705, the method may include obtaining a first report indicating a predicted channel measurement and a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement, wherein the predicted channel measurement is associated with a reference signal resource, and wherein the request is based on the predicted channel measurement satisfying a trigger condition. The operations of 1705 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1705 may be performed by methods as described in reference to Figure 13 The described report request component 1325 executes.
[0244] At 1710, the method may include outputting, in response to the request, a grant of at least uplink resources to be used for sending the second report. The operations of 1710 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1710 may be implemented as described in reference to Figure 13 The described grant component 1330 performs.
[0245] At 1715, the method may include obtaining a second report based on the output grant, the second report indicating an actual channel measurement associated with the predicted channel measurement. The operations of 1715 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1715 may be performed as described in reference to Figure 13 The actual measurement component 1335 performs as described.
[0246] Figure 18A flowchart illustrating a method 1800 for supporting device-triggered beam measurement reporting according to one or more aspects of the present disclosure is illustrated. The operations of the method 1800 may be implemented by a network entity or component thereof as described herein. For example, the operations of the method 1800 may be implemented by a network entity or component thereof as described herein. Figures 1 to 6 as well as Figures 11 to 14 The network entity described herein performs. In some examples, the network entity may execute an instruction set to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform various aspects of the described functions.
[0247] At 1805, the method may include obtaining a first report indicating at least a first predicted channel measurement associated with a reference signal resource in a set of reference signal resources. The operations of 1805 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1805 may be performed by Figure 13 The described predictive measurement component 1340 performs.
[0248] At 1810, the method may include obtaining a second report indicating a channel measurement associated with a reference signal resource and indicating whether the channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein whether the channel measurement includes the second predicted channel measurement or the first actual channel measurement is based on whether the first predicted channel measurement satisfies a trigger condition. The operations of 1810 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1810 may be performed by a method as described in reference to Figure 13 The described measurement instructions component 1345 performs.
[0249] The following provides an overview of various aspects of the disclosure:
[0250] Aspect 1: A method for wireless communication at a UE, the method comprising: sending a first report to a network entity, the first report indicating a predicted channel measurement associated with a reference signal resource; determining that the predicted channel measurement satisfies a trigger condition, wherein the first report indicates a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement based at least in part on the predicted channel measurement satisfying the trigger condition; and receiving a grant of at least uplink resources from the network entity for sending the second report in response to the request.
[0251] Aspect 2: The method of aspect 1, wherein sending the first report comprises sending the first report during a first duration, wherein the predicted channel measurement is associated with a second duration subsequent to the first duration.
[0252] Aspect 3: According to the method described in any one of Aspects 1 to 2, the method further includes: receiving a reference signal sent using a second reference signal resource associated with the reference signal resource from the network entity; and using the uplink resource to send the second report indicating the actual channel measurement associated with the predicted channel measurement to the network entity, wherein the actual channel measurement is of the reference signal.
[0253] Aspect 4: The method according to aspect 3, wherein the reference signal resource comprises a virtual resource, and the second reference signal resource comprises a CMR.
[0254] Aspect 5: The method according to any one of aspects 1 to 4, further comprising: identifying the trigger condition, wherein determining that the predicted channel measurement meets the trigger condition is based at least in part on identifying the trigger condition.
[0255] Aspect 6: The method according to aspect 5, further comprising: receiving an indication of the triggering condition from the network entity, wherein identifying the triggering condition is based at least in part on the received indication.
[0256] Aspect 7: The method according to aspect 5 further comprises: sending an indication of the identified trigger condition to the network entity.
[0257] Aspect 8: A method according to any one of Aspects 1 to 7, wherein determining that the predicted channel measurement satisfies the trigger condition includes: determining that the difference between the predicted channel measurement and a second predicted channel measurement associated with a second reference signal resource satisfies a threshold, wherein the predicted channel measurement and the second predicted channel measurement are associated with the same duration.
[0258] Aspect 9: The method according to aspect 8, wherein the first report indicates multiple actual channel measurements associated with multiple reference signal resources including the second reference signal resource, and the second reference signal resource corresponds to the strongest channel measurement among the multiple actual channel measurements.
[0259] Aspect 10: The method according to aspect 8, wherein the second reference signal resource corresponds to a TCI state associated with a previously scheduled PDCCH transmission or a previously scheduled PDSCH transmission.
[0260] Aspect 11: The method according to any one of aspects 1 to 7, wherein determining that the predicted channel measurement satisfies the trigger condition comprises determining that a confidence level associated with the predicted channel measurement satisfies a threshold.
[0261] Aspect 12: The method according to any one of aspects 1 to 11, wherein the first report includes a bitmap or a combination index indicating the request.
[0262] Aspect 13: The method according to any one of aspects 1 to 12, wherein the first report comprises a periodic CSI report, and the second report comprises an aperiodic CSI report.
[0263] Aspect 14: The method according to any one of aspects 1 to 13, wherein the reference signal resource comprises a CMR.
[0264] Aspect 15: A method for wireless communication at a UE, the method comprising: sending a first report to a network entity, the first report indicating at least a first predicted channel measurement associated with a first reference signal resource in a set of reference signal resources; determining whether the first predicted channel measurement meets a trigger condition; and sending a second report to the network entity, the second report indicating a first channel measurement associated with the first reference signal resource and indicating whether the first channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement is at least partially based on whether the first predicted channel measurement meets the trigger condition.
[0265] Aspect 16: A method according to Aspect 15, wherein determining whether the first predicted channel measurement satisfies the trigger condition includes: determining that the first predicted channel measurement fails to satisfy the trigger condition, wherein at least in part based on the failure of the first predicted channel measurement to satisfy the trigger condition, the second report indicates that the first channel measurement includes the first actual channel measurement.
[0266] Aspect 17: A method according to Aspect 15, wherein determining whether the first predicted channel measurement satisfies the trigger condition includes: determining that the first predicted channel measurement satisfies the trigger condition, wherein at least in part based on the first predicted channel measurement satisfying the trigger condition, the second report indicates that the first channel measurement includes the second predicted channel measurement.
[0267] Aspect 18: A method according to any one of Aspects 15 to 17, wherein the second report indicates a set of channel measurements associated with the set of reference signal resources including the first channel measurement, and wherein sending the second report includes: sending a bit indicating whether the set of channel measurements includes predicted channel measurements or actual channel measurements.
[0268] Aspect 19: A method according to any one of Aspects 15 to 18, wherein the second report indicates the first channel measurement and a second channel measurement associated with a second reference signal resource in the set of reference signal resources, and wherein sending the second report includes: sending a first indication of whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement; and sending a second indication of whether the second channel measurement includes a third predicted channel measurement or a second actual channel measurement.
[0269] Aspect 20: The method according to aspect 19, wherein the first indication comprises a first bit or a first combination index associated with the first channel measurement, and the second indication comprises a second bit or a second combination index associated with the second channel measurement.
[0270] Aspect 21: The method according to any one of aspects 15 to 20, wherein determining whether the first predicted channel measurement satisfies the trigger condition comprises determining that a confidence level associated with the first predicted channel measurement satisfies a threshold.
[0271] Aspect 22: The method according to any one of aspects 15 to 21, further comprising: identifying the trigger condition, wherein determining that the first predicted channel measurement meets the trigger condition is based at least in part on identifying the trigger condition.
[0272] Aspect 23: The method according to aspect 22, further comprising: receiving an indication of the triggering condition from the network entity, wherein identifying the triggering condition is based at least in part on the received indication.
[0273] Aspect 24: The method according to aspect 22, further comprising: sending an indication of the identified triggering condition to the network entity.
[0274] Aspect 25: A method for wireless communication at a network entity, the method comprising: obtaining a first report, the first report indicating a predicted channel measurement and a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement, wherein the predicted channel measurement is associated with a reference signal resource, and wherein the request is based at least in part on the predicted channel measurement satisfying a trigger condition; outputting a grant of at least uplink resources to be used for sending the second report in response to the request; and obtaining the second report based at least in part on outputting the grant, the second report indicating the actual channel measurement associated with the predicted channel measurement.
[0275] Aspect 26: The method of aspect 25, wherein the predicted channel measurement is associated with a duration, the method further comprising: outputting a reference signal using a second reference signal resource associated with the reference signal resource, wherein the actual channel measurement is of the reference signal.
[0276] Aspect 27: The method according to aspect 26, wherein the reference signal resource comprises a virtual resource, and the second reference signal resource comprises a CMR.
[0277] Aspect 28: The method according to any one of aspects 25 to 27, wherein the first report includes a bitmap or a combination index indicating the request.
[0278] Aspect 29: A method for wireless communication at a network entity, the method comprising: obtaining a first report indicating at least a first predicted channel measurement associated with a reference signal resource in a set of reference signal resources; and obtaining a second report indicating a channel measurement associated with the reference signal resource and indicating whether the channel measurement includes a second predicted channel measurement or a first actual channel measurement, wherein the channel measurement includes the second predicted channel measurement or the first actual channel measurement at least in part based on whether the first predicted channel measurement meets a trigger condition.
[0279] Aspect 30: A method according to Aspect 29, wherein the second report indicates a set of channel measurements associated with the set of reference signal resources including the channel measurement, and wherein sending the second report includes: obtaining one or more bits indicating whether the set of channel measurements includes predicted channel measurements or actual channel measurements.
[0280] Aspect 31: An apparatus for wireless communication at a UE, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of aspects 1 to 14.
[0281] Aspect 32: An apparatus for wireless communication at a UE, the apparatus comprising at least one component for performing the method according to any one of aspects 1 to 14.
[0282] Aspect 33: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method according to any one of aspects 1 to 14.
[0283] Aspect 34: An apparatus for wireless communication at a UE, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of aspects 15 to 24.
[0284] Aspect 35: An apparatus for wireless communication at a UE, the apparatus comprising at least one component for performing the method according to any one of aspects 15 to 24.
[0285] Aspect 36: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method according to any one of aspects 15 to 24.
[0286] Aspect 37: An apparatus for wireless communication at a network entity, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of Aspects 25 to 28.
[0287] Aspect 38: An apparatus for wireless communication at a network entity, the apparatus comprising at least one component for performing the method according to any one of aspects 25 to 28.
[0288] Aspect 39: A non-transitory computer-readable medium storing code for wireless communication between network entities, the code comprising instructions executable by a processor to perform the method according to any one of aspects 25 to 28.
[0289] Aspect 40: An apparatus for wireless communication at a network entity, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of aspects 29 to 30.
[0290] Aspect 41: An apparatus for wireless communication at a network entity, the apparatus comprising at least one means for performing the method according to any one of aspects 29 to 30.
[0291] Aspect 42: A non-transitory computer-readable medium storing code for wireless communication between a network entity, the code comprising instructions executable by a processor to perform the method according to any one of aspects 29 to 30.
[0292] It should be noted that the methods described herein describe possible implementations, and that the operations and steps may be rearranged or otherwise modified and that other implementations are possible. Furthermore, aspects from two or more methods may be combined.
[0293] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and the terminology of LTE, LTE-A, LTE-A Pro, or NR may be used throughout much of the description, the techniques described herein may also be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.
[0294] The information and signals described herein may be represented by any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips referred to throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0295] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or executed using a general purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic components, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration).
[0296] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on a computer-readable medium, or sent via a computer-readable medium. Other examples and specific implementations fall within the scope and essence of this disclosure and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. The features that implement the functions may also be physically located at different locations, including being distributed so that the various parts of the functions are implemented at different physical locations. As used herein (including in the claims), the term "and / or" when used in a list of two or more items means that any one of the listed items may be adopted individually, or any combination of two or more of the listed items may be adopted. For example, if a composition is described as comprising components A, B, and / or C, the composition may comprise A alone; B alone; C alone; A and B combined; A and C combined; B and C combined; or A, B, and C combined. Additionally, as used herein (including in the claims), “or” used in a list of items (e.g., a list of items followed by phrases such as “at least one of” or “one or more of”) indicates an inclusive list so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C).
[0297] Computer-readable media includes both non-transient computer storage media and communication media, and the communication media includes any medium that promotes a computer program to be transferred from one location to another.Non-transient storage media can be any available medium that can be accessed by a general or special-purpose computer.By way of example and not limitation, non-transient computer-readable media can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage devices, magnetic disk storage devices or other magnetic storage devices, or can be used for carrying or storing desired program code components and any other non-transient medium that can be accessed by a general or special-purpose computer or a general or special-purpose processor in the form of an instruction or data structure.Moreover, any connection is appropriately referred to as computer-readable media.For example, if software is sent from a website, a server or other remote source using a coaxial cable, a fiber optic cable, a twisted pair, a digital subscriber line (DSL) or a wireless technology such as infrared, radio and microwave, then the coaxial cable, the fiber optic cable, the twisted pair, the DSL or the wireless technology such as infrared, radio and microwave are included in the definition of computer-readable media. As used herein, disks and optical discs include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs. Magnetic disks can reproduce data magnetically, and optical discs can reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media.
[0298] As used herein (including in the claims), "or" used in a list of items (e.g., a list of items followed by a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). In addition, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, an example step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."
[0299] The term "determining" encompasses a variety of actions, and thus, "determining" may include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, database, or other data structure), ascertaining, and the like. Furthermore, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data stored in a memory), etc. Furthermore, "determining" may include parsing, retrieving, selecting, choosing, establishing, and other such similar actions.
[0300] In the drawings, similar components or features may have the same reference label. In addition, various components of the same type may be distinguished by following the reference label with a dash and a second label to distinguish between similar components. If only the first reference label is used in the specification, the description can apply to any of the similar components having the same first reference label, regardless of the second reference label or other subsequent reference labels.
[0301] The description set forth herein in conjunction with the accompanying drawings describes example configurations and does not represent all examples that may be implemented or within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration," rather than "preferred" or "having advantages over other examples." The detailed description includes specific details to provide an understanding of the described techniques. However, these techniques can be practiced without these specific details. In some instances, known structures and devices are shown in diagram form to avoid obscuring the concepts of the described examples.
[0302] The description herein is provided to enable one of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: sending a first report to a network entity, the first report indicating predicted channel measurements associated with reference signal resources; determining that the predicted channel measurement satisfies a trigger condition, wherein the first report indicates a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement based at least in part on the predicted channel measurement satisfying the trigger condition; as well as A grant of at least uplink resources for sending the second report is received from the network entity in response to the request.
2. The apparatus of claim 1 , wherein the instructions for sending the first report are executable by the processor to cause the apparatus to: The first report is sent during a first duration, wherein the predicted channel measurement is associated with a second duration subsequent to the first duration.
3. The apparatus of claim 1 , wherein the instructions are further executable by the processor to cause the apparatus to: receive, from the network entity, a reference signal sent using a second reference signal resource associated with the reference signal resource, and The second report indicating the actual channel measurement associated with the predicted channel measurement is sent to the network entity using the uplink resources, wherein the actual channel measurement is of the reference signal.
4. The device according to claim 3, wherein: The reference signal resources include virtual resources, and The second reference signal resource includes a channel measurement resource.
5. The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: identify the trigger condition, wherein determining that the predicted channel measurement satisfies the trigger condition is based at least in part on identifying the trigger condition.
6. The apparatus of claim 5, wherein the instructions are further executable by the processor to cause the apparatus to: receive an indication of the triggering condition from the network entity, wherein identifying the triggering condition is based at least in part on the received indication.
7. The apparatus of claim 5, wherein the instructions are further executable by the processor to cause the apparatus to: send an indication of the identified triggering condition to the network entity.
8. The apparatus of claim 1 , wherein the instructions for determining that the predicted channel measurement satisfies the trigger condition are executable by the processor to cause the apparatus to: A determination is made that a difference between the predicted channel measurement and a second predicted channel measurement associated with a second reference signal resource satisfies a threshold, wherein the predicted channel measurement and the second predicted channel measurement are associated with a same duration.
9. The apparatus according to claim 8, wherein: The first report indicates a plurality of actual channel measurements associated with a plurality of reference signal resources including the second reference signal resource, and The second reference signal resource corresponds to the strongest channel measurement among the multiple actual channel measurements.
10. The apparatus of claim 8, wherein the second reference signal resource corresponds to a transmission configuration indicator state associated with a previously scheduled physical downlink control channel transmission or a previously scheduled physical downlink shared channel transmission.
11. The apparatus of claim 1 , wherein the instructions for determining that the predicted channel measurement satisfies the trigger condition are executable by the processor to cause the apparatus to: A determination is made that a confidence level associated with the predicted channel measurement satisfies a threshold.
12. The apparatus of claim 1, wherein the first report comprises a bitmap or a combination index indicating the request.
13. The apparatus of claim 1, wherein the first report comprises a periodic channel state information report and the second report comprises an aperiodic channel state information report. The apparatus according to claim 1 , wherein the reference signal resources comprise channel measurement resources.
15. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: sending a first report to a network entity, the first report indicating at least a first predicted channel measurement associated with a first reference signal resource in a set of reference signal resources; Determining whether the first predicted channel measurement meets a trigger condition; as well as and sending a second report to the network entity, the second report indicating a first channel measurement associated with the first reference signal resource and indicating whether the first channel measurement comprises a second predicted channel measurement or a first actual channel measurement, wherein whether the first channel measurement comprises the second predicted channel measurement or the first actual channel measurement is based at least in part on whether the first predicted channel measurement satisfies the trigger condition.
16. The apparatus of claim 15, wherein the instructions for determining whether the first predicted channel measurement satisfies the trigger condition are executable by the processor to cause the apparatus to: It is determined that the first predicted channel measurement fails to satisfy the trigger condition, wherein the second report indicates that the first channel measurement includes the first actual channel measurement based at least in part on the first predicted channel measurement failing to satisfy the trigger condition.
17. The apparatus of claim 15, wherein the instructions for determining whether the first predicted channel measurement satisfies the trigger condition are executable by the processor to cause the apparatus to: Determining that the first predicted channel measurement satisfies the trigger condition, wherein the second report indicates that the first channel measurement includes the second predicted channel measurement based at least in part on the first predicted channel measurement satisfying the trigger condition.
18. The apparatus of claim 15, wherein the instructions for sending the second report are executable by the processor to cause the apparatus to: A bit is sent indicating whether the first channel measurement comprises a predicted channel measurement or an actual channel measurement.
19. The apparatus of claim 15, wherein the instructions for sending the second report are executable by the processor to cause the apparatus to: sending a first indication of whether the first channel measurement includes the second predicted channel measurement or the first actual channel measurement; and A second indication of whether the second channel measurement includes a third predicted channel measurement or a second actual channel measurement is sent.
20. The apparatus of claim 19, wherein the first indication comprises a first bit or a first combination index associated with the first channel measurement, and the second indication comprises a second bit or a second combination index associated with the second channel measurement.
21. The apparatus of claim 15, wherein the instructions for determining whether the first predicted channel measurement satisfies the trigger condition are executable by the processor to cause the apparatus to: A determination is made that a confidence level associated with the first predicted channel measurement satisfies a threshold.
22. The apparatus of claim 15, wherein the instructions are further executable by the processor to cause the apparatus to: identify the trigger condition, wherein determining that the first predicted channel measurement satisfies the trigger condition is based at least in part on identifying the trigger condition.
23. The apparatus of claim 22, wherein the instructions are further executable by the processor to cause the apparatus to: receive an indication of the triggering condition from the network entity, wherein identifying the triggering condition is based at least in part on the received indication.
24. The apparatus of claim 22, wherein the instructions are further executable by the processor to cause the apparatus to: send an indication of the identified triggering condition to the network entity.
25. An apparatus for wireless communication at a network entity, the apparatus comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: obtaining a first report indicating a predicted channel measurement and a request to send a second report indicating an actual channel measurement associated with the predicted channel measurement, wherein the predicted channel measurement is associated with a reference signal resource, and wherein the request is based at least in part on the predicted channel measurement satisfying a trigger condition; outputting, in response to the request, a grant of at least uplink resources to be used for sending the second report; as well as The second report is obtained based at least in part on outputting the grant, the second report indicating the actual channel measurement associated with the predicted channel measurement.
26. The apparatus of claim 25, wherein the predicted channel measurement is associated with a duration, and the instructions are further executable by the processor to cause the apparatus to: A reference signal is output using a second reference signal resource associated with the reference signal resource, wherein the actual channel measurement is of the reference signal.
27. The apparatus of claim 26, wherein: The reference signal resources include virtual resources, and The second reference signal resource includes a channel measurement resource.
28. The apparatus of claim 25, wherein the first report comprises a bitmap or a combination index indicating the request.
29. An apparatus for wireless communication at a network entity, the apparatus comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: obtaining a first report indicating at least a first predicted channel measurement associated with a reference signal resource in a set of reference signal resources; as well as Obtain a second report indicating a channel measurement associated with the reference signal resource and indicating whether the channel measurement comprises a second predicted channel measurement or a first actual channel measurement, wherein whether the channel measurement comprises the second predicted channel measurement or the first actual channel measurement is based at least in part on whether the first predicted channel measurement satisfies a trigger condition.
30. The apparatus of claim 29, wherein the instructions for sending the second report are executable by the processor to cause the apparatus to: One or more bits are obtained that indicate whether the channel measurement comprises the second predicted channel measurement or the first actual channel measurement.