Reference signal resource set handling in wireless communications

CN122996771APending Publication Date: 2026-10-27ZTE CORP
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Patent Information

Application Number
CN202480089988.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-04-03
Publication Date
2026-10-27

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Technical Problem

然而,由于有限的泛化能力,AI/ML模型的性能可能会随时间波动

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Abstract

This document generally relates to wireless communications in which a user equipment transmits a channel information report associated with at least one of a first set of reference signal (RS) resources or a second set of RS resources based on whether a condition is satisfied. Further, a network equipment determines whether to transmit the first set of RS resources based on whether a first condition is satisfied and whether to transmit the entire second set of RS resources or only a partial second set of RS resources of the second set of RS resources based on whether a second condition is satisfied. Further, the network equipment transmits a command to trigger reception of K channel state information (CSI)-reference signal (RS) resources and transmission of a CSI report. The CSI report includes at least one CSI-RS resource indicator of the K CSI-RS resources.
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Description

Technical Field

[0001] This document generally deals with the processing of reference signal resource sets in wireless communication. Background Technology

[0002] In wireless communication, beam prediction based on artificial intelligence (AI) / machine learning (ML) models can be used to directly predict the optimal narrow beam by utilizing measurements from an inferred beamset that includes wide and / or narrow beams. This approach can significantly reduce the reference signal (RS) resource overhead required for beam scanning. However, due to limited generalization ability, the performance of AI / ML models can fluctuate over time. To mitigate these fluctuations, it is crucial to monitor the performance of the AI / ML model by comparing the predicted optimal beam with the actual optimal beam obtained through measurements on a dedicated monitoring beamset. Therefore, it may be necessary to optimize the configuration of the monitoring beamset and / or perform beam reporting during the model monitoring window to optimally mitigate model fluctuations. Summary of the Invention

[0003] This document relates to methods, systems, apparatuses, and devices for wireless communication. In some embodiments, a method for wireless communication includes: receiving a first reference signal (RS) resource set and / or a second RS resource set by a user equipment, wherein the first RS resource set and the second RS resource set are associated with each other; determining whether the condition is met by the user equipment; and transmitting a channel information report associated with at least one of the first RS resource set or the second RS resource set based on whether the condition is met.

[0004] In some other embodiments, a method for wireless communication includes: transmitting a first reference signal (RS) resource set and / or a second RS resource set by a network device, wherein the first RS resource set and the second RS resource set are associated with each other; and receiving a channel information report associated with at least one of the first RS resource set or the second RS resource set by the network device based on whether a condition is met.

[0005] In some other embodiments, a method for wireless communication includes: determining by a network device whether a first condition is met; determining by the network device whether to transmit a first reference signal (RS) resource set based on whether the first condition is met; determining by the network device whether a second condition is met; and transmitting the entire second RS resource set or only a portion of the second RS resource set based on whether the second condition is met.

[0006] In some other embodiments, a method for wireless communication includes: a network device sending a command for triggering the reception of K channel state information (CSI)-reference signal (RS) resources and sending a CSI report, wherein the command includes a configuration index value or identifier, and wherein K is an integer greater than zero; and the network device receiving the CSI report, wherein the CSI report includes at least one CSI-RS resource indicator of the K CSI-RS resources.

[0007] In some other embodiments, a method for wireless communication includes: receiving a command by a user equipment for triggering the reception of K Channel State Information (CSI)-Reference Signal (RS) resources and sending a CSI report, wherein the command includes a configuration index value or identifier, and wherein K is an integer greater than zero; and in response to the command, sending the CSI report by the user equipment, wherein the CSI report includes at least one CSI resource indicator of the K CSI-RS resources.

[0008] In some other embodiments, a device, such as a network device, is disclosed. The device may include one or more processors and one or more memories, wherein the one or more processors are configured to read computer code from the one or more memories to implement any of the methods described above.

[0009] In some other embodiments, a computer program product is disclosed. The computer program product may include a non-transitory computer-readable program medium storing computer code that, when executed by one or more processors, causes the one or more processors to implement any of the methods described above.

[0010] The above and other aspects and their embodiments are described in more detail in the accompanying drawings, description and claims. Attached Figure Description

[0011] Figure 1 A block diagram of an example wireless communication system is shown.

[0012] Figure 2 A flowchart of a method for wireless communication is shown.

[0013] Figure 3 A flowchart of another method for wireless communication is shown.

[0014] Figure 4 A flowchart of another method for wireless communication is shown.

[0015] Figure 5A flowchart of another example method for wireless communication is shown.

[0016] Figure 6 A flowchart of another example method for wireless communication is shown.

[0017] Figure 7 A timing diagram showing the reception of resource sets at multiple reception times is presented.

[0018] Figure 8 A timing diagram showing the timing of reference signal (RS) resource reception and beam reporting relative to the reference resource is presented.

[0019] Figure 9 A timing diagram is shown, which illustrates multiple first RS resource set reception times within the model monitoring window relative to the second RS resource set reception time.

[0020] Figure 10 The timing diagram shows the user equipment sending measurement reports to the network equipment. Detailed Implementation

[0021] This specification describes various embodiments of systems, apparatuses, devices, and methods for wireless communication related to reference signal resource set processing. Such embodiments include configuring a monitoring beam set and facilitating beam reporting within a specified monitoring window. Furthermore, such embodiments include establishing a pairing mechanism between the inferred beam set and the monitoring beam set to simplify the model monitoring process. Additionally, such embodiments include beam scanning of the predicted top K candidate optimal beams, utilizing their correlation with the latest measurement report. Moreover, such embodiments can quickly identify the final optimal beam and minimize the time and resources required for the entire beam scanning process. Details of such embodiments, as well as other embodiments, will be further described in detail below.

[0022] Figure 1 A diagram is shown of an example wireless communication system 100 (also referred to as wireless system 100 or system 100) comprising multiple communication nodes (or nodes only), which are configured to communicate wirelessly with each other. Typically, the communication nodes include at least one user equipment 102 and at least one network device 104. Figure 1 The example wireless communication system 100 is shown as including two user equipments 102 (including a first user equipment 102 (1) and a second user equipment 102 (2)) and a network device 104. However, various other examples of wireless communication systems 100 including any combination of one or more user equipments 102 and / or one or more network devices 104 are also possible.

[0023] Typically, user equipment described herein (such as user equipment 102) may include a single electronic device or apparatus capable of wireless communication over a network, or multiple electronic devices or apparatuses (e.g., a network of multiple electronic devices or apparatuses). User equipment may include a user terminal, user terminal equipment, or user equipment (UE), or otherwise referred to as a user terminal, user terminal equipment, or user equipment (UE). Furthermore, user equipment may be, or includes, but is not limited to: mobile devices (as non-limiting examples, such as mobile phones, smartphones, smartwatches, tablets, laptops, vehicles or other vessels (driven by people, electric motors or engines, such as automobiles, airplanes, trains, ships, or bicycles)), or fixed or stationary devices (as non-limiting examples, such as desktop computers, or other computing devices that are generally not moved for extended periods, such as home appliances, other relatively heavy equipment (including Internet of Things (IoT) or computing devices used in commercial or industrial environments)). In various embodiments, user equipment 102 may include transceiver circuitry 106 (also referred to as transceiver 106) coupled to antenna 108 to enable wireless communication with network device 104. The transceiver circuit 106 may also be coupled to the processor 110, which may further be coupled to the memory 112 or other storage devices. The memory 112 may store instructions or code therein that, when read and executed by the processor 110, cause the processor 110 to implement the various methods described herein.

[0024] Furthermore, network devices as described herein (such as network device 104) typically include a single electronic device or apparatus, or multiple electronic devices or apparatuses (e.g., a network of multiple electronic devices or apparatuses), and may include one or more wireless access nodes, base stations, or other wireless network access points capable of wirelessly communicating with one or more user equipments and / or with one or more other network devices 104 via the network. For example, in various embodiments, network device 104 may include a 4G LTE base station, a 5G NR base station, a 5G centralized unit base station, a 5G distributed unit base station, a next-generation Node B (gNB), an enhanced Node B (eNB), or other similar or next-generation (e.g., 6G) base station. Network device 104 may include transceiver circuitry 114 (also referred to as transceiver 114) coupled to an antenna 116 (antenna 116 may include an antenna tower 118 in various ways) to enable wireless communication with user equipment 102 or another network device 104. The transceiver circuit 114 may also be coupled to one or more processors 120, which may also be coupled to memory 122 or other storage devices. Memory 122 may store instructions or code therein that, when read and executed by processor 120, cause processor 120 to implement one or more of the methods described herein.

[0025] In various embodiments, two communication nodes in wireless system 100—such as user equipment 102 and network device 104, two user equipment 102 without network device 104, or two network devices 104 without user equipment 102—can be configured to wirelessly communicate with each other in or through a mobile network and / or wireless access network according to one or more standards and / or specifications. Typically, the standards and / or specifications can define rules or procedures by which the communication nodes can perform wireless communication. In various embodiments, these rules or procedures may include those for communication in the millimeter (mm) band, and / or those for communication utilizing multi-antenna schemes and beamforming capabilities. Additionally or alternatively, the standards and / or specifications are those that define the following wireless access technologies and / or cellular technologies: as non-limiting examples, such as Fourth Generation (4G) Long Term Evolution (LTE), Fifth Generation (5G) New Radio (NR), or New Radio Unlicensed (NR-U).

[0026] Furthermore, in the wireless system 100, communication nodes are configured to wirelessly transmit signals to each other. Typically, depending on the perspective of a particular node in the communication, communication between two communication nodes in the wireless system 100 can be or includes transmitting or receiving, and is usually simultaneous. For example, for a given communication between a first node and a second node, where the first node transmits a signal to the second node and the second node receives a signal from the first node, the first node can be referred to as a source or transmitting node or device, and the second node can be referred to as a destination or receiving node or device, and the communication can be considered as the transmission of the first node and the reception of the second node. Of course, since communication nodes in the wireless system 100 can transmit and receive signals, a single communication node can be simultaneously a transmitting / source node and a receiving / destination node, or switch between being a source / transmitting node and a destination / receiving node.

[0027] Furthermore, specific signals can be characterized or defined as uplink (UL) signals, downlink (DL) signals, or sidelink (SL) signals. An uplink signal is a signal transmitted from user equipment 102 to network device 104. A downlink signal is a signal transmitted from network device 104 to user equipment 102. A sidelink signal is a signal transmitted from one user equipment 102 to another user equipment 102, or from one network device 104 to another network device 104. Moreover, for sidelink transmission, the first / source user equipment 102 directly transmits the sidelink signal to the second / destination user equipment 102 without forwarding it to network device 104.

[0028] Furthermore, the signals transmitted between communication nodes in system 100 can be characterized or defined as data signals or control signals. Typically, data signals are signals that include or carry data (such as multimedia data, e.g., voice data and / or image data), while control signals are signals that carry control information that configures the communication nodes in a specific way to communicate with each other, or otherwise controls how the communication nodes transmit data signals to each other. Additionally, specific signals can be defined or characterized as combinations of data / control and uplink / downlink / sidelink signals, including uplink control signals, uplink data signals, downlink control signals, downlink data signals, sidelink control signals, and sidelink data signals.

[0029] For at least some specifications (such as 5G NR), data signals and control signals are transmitted and / or carried on physical channels. Typically, a physical channel corresponds to a set of time-frequency resources used for signal transmission. Different types of physical channels can be used to transmit different types of signals. For example, a physical data channel (or a data channel only) can be used to transmit data signals, and a physical control channel (or a control channel only) can be used to transmit control signals. Example types of traffic channels (or physical data channels) include, but are not limited to, physical downlink shared channels (PDSCH) for transmitting downlink data signals, physical uplink shared channels (PUSCH) for transmitting uplink data signals, and physical sidelink shared channels (PSSCH) for transmitting sidelink data signals. Furthermore, example types of physical control channels include, but are not limited to, physical downlink control channels (PDCCH) for transmitting downlink control signals, physical uplink control channels (PUCCH) for transmitting uplink control signals, and physical sidelink control channels (PSCCH) for transmitting sidelink control signals. As used herein, for simplicity, unless otherwise stated, a particular type of physical channel is also used to refer to signals transmitted on that particular type of physical channel, and / or transmissions on that particular type of transmission. For example, PDSCH refers to the physical downlink shared channel itself, downlink data signals transmitted on the PDSCH, or downlink data transmission. Therefore, when a communication node sends or receives a PDSCH, it means that the communication node is sending or receiving signals on the PDSCH.

[0030] Additionally, for at least some specifications such as 5G NR and / or for at least some types of control signals, the control signals transmitted by the communication nodes may include control information, which includes information required to enable the transmission of one or more data signals between the communication nodes, and / or information required to schedule one or more data channels (or one or more transmissions on data channels). For example, such control information may include: information required to correctly receive, decode, and demodulate data signals received on physical data channels during data transmission; and / or information required for uplink scheduling authorization, which informs the user equipment of the resources and transmission formats used for uplink data transmission. In some embodiments, the control information includes downlink control information (DCI) transmitted from network device 104 to user equipment 102 in the downlink direction. In other embodiments, the control information includes uplink control information (UCI) or sidelink control information (SCI), the uplink control information being sent from user equipment 102 to network device 104 in the uplink direction, and the sidelink control information being sent from one user equipment 102 (1) to another user equipment 102 (2) in the sidelink direction.

[0031] Furthermore, as previously described, each user equipment 102 and network device 104 may each include its own antenna 108, 116 for wireless communication with each other. To achieve beam alignment and obtain sufficiently high antenna gain, user equipment 102 and network device 104 may perform beam training, and their respective antennas 108, 116 may include antenna arrays with a specific number of antenna elements (e.g., 1024 antenna elements in some embodiments) for a multiple-input multiple-output (MIMO) implementation. These features of user equipment 102 and network device 104 can help overcome the propagation loss challenges caused by high frequencies at which user equipment 102 and network device 104 can wirelessly communicate. Additionally, the respective transceiver circuits 106, 114 of user equipment 102 and network device 104 may include analog phase shifters for implementing millimeter-wave (mmWave) beamforming, providing a finite number of controllable phases. Furthermore, constant modulus constraints may be imposed on the antenna elements. Given a pre-specified beam pattern, a variable phase-shift-based beamforming training objective can be used to identify the optimal pattern for subsequent data transmission, such as typically between a transmission reception point (TRP) and a UE panel. Accordingly, communication nodes in the wireless communication system 100 can communicate (transmit and / or receive) using and / or according to one of a plurality of beams.

[0032] In some embodiments, user equipment 102 and network device 104 may implement a set of beam management procedures for adjusting beam direction in a high-frequency band and maintaining appropriate transmit and receive beam pairs. This set of beam management procedures may include beam scanning, beam measurement, beam reporting, and / or beam indication. In some embodiments of these embodiments, user equipment 102 is configured with at least one resource setting for channel measurement and at least one reporting setting for channel state information (CSI) reporting. Each reporting setting may include parameters for a CSI reporting frequency band and CSI-related quantities reported by user equipment 102.

[0033] Furthermore, regarding beam management, the CSI-related quantities reported by user equipment 102 can be obtained from higher-level parameters in the report settings. reportQuantityIndications include, and are further subdivided into, CSI-RS resource indicator (CRI), synchronization signal (SS) / physical broadcast channel (PBCH) block resource indicator (SSBRI), Layer 1 (L1) reference signal received power (RSRP), or L1 interference plus noise ratio (SINR). More specifically, higher-layer parameters... reportQuantity It can be set to 'cri-RSRP', 'cri-SINR', 'ssb-Index-RSRP', and 'ssb-Index-SINR'. For example, in higher-level parameters... reportQuantity When set to 'cri-RSRP', user equipment 102 can report at least one CRI and associated L1-RSRP in a single report for each reporting setting. In some embodiments, the number of RS resources to be reported is configured by higher layers (e.g., second-layer or higher). More specifically, higher-layer parameters... reportQuantity It can be set to 'cri-RSRP', 'cri-SINR', 'ssb-Index-RSRP', and 'ssb-Index-SINR'. For example, in higher-level parameters... reportQuantity When set to 'cri-RSRP', user equipment 102 can report at least one CRI and associated L1-RSRP in a single report for each reporting setting. In some embodiments, the number of RS resources to be reported is configured by a higher layer (e.g., a second layer or higher).

[0034] Additionally, in some embodiments, user equipment 102 may report N transmit (Tx) beam identifications (IDs) (e.g., CRIs) and their corresponding beam quality (e.g., L1-RSRP) results. Furthermore, network device 104 (e.g., gNB) may select a beam from the candidate set based on the beam reports and associated scheduling schemes.

[0035] Furthermore, for some reference signals (e.g., CSI-RS, sounding reference signal (SRS), or synchronization signal (SS) / physical broadcast channel (PBCH) block (SSB)), each reference signal (RS) resource can be configured with an RS resource index. Additionally, each RS resource can be associated with a quasi-co-location (QCL) configuration. This QCL configuration may include a transmission configuration indicator (TCI) status configuration, such as the source reference signal and the QCL type. Furthermore, each RS resource can be configured with the same or different time-domain and frequency-domain resource configurations. Thus, user equipment 102 knows when and where to receive RS resources according to the time-domain and frequency-domain resource configurations, and user equipment 102 can know how to receive RS resources (e.g., receive beam direction) according to the QCL configuration.

[0036] Furthermore, as used herein, the term "beam state" means, is equivalent to, or includes at least one of the following: Quasi-Co-location (QCL) state, Transmit Configuration Indicator (TCI) state, Spatial Relationship (also known as Spatial Relationship Information), Reference Signal (RS), RS Resources, Spatial Filters, and / or Precoding. Additionally, as used herein, "beam state" is also referred to as "beam".

[0037] Furthermore, as used herein, the terms “transmit beam” or “Tx beam” mean the same as, equivalent to, or include at least one of the following: QCL state, Transmission Configuration Indicator (TCI) state, Spatial Relationship state, Downlink (DL) and / or Uplink (UL) reference signals (such as Channel State Information Reference Signal (CSI-RS), Synchronization Signal Block (SSB) (also known as SS / Physical Broadcast Channel (PBCH)), Demodulation Reference Signal (DMRS), Probe Reference Signal (SRS), Physical Random Access Channel (PRACH)), or Tx Spatial Filter or Tx Precoding.

[0038] Furthermore, as used herein, the terms “receive beam” or “Rx beam” mean the same as, equivalent to, or include at least one of the following: QCL state, TCI state, spatial relation state, spatial filter, Rx spatial filter, and / or Rx precoding.

[0039] Furthermore, as used herein, the term "channel information" means, is, or refers to information that can be obtained by measurement or algorithm (such as channel measurement performed by user equipment 102), or information that is related to or can be used as input or output of an AI / ML model. Additionally or alternatively, channel information means the same as, equivalent to, or includes at least one of the following: beam ID or beam quality.

[0040] Furthermore, as used herein, the term “beam identifier (ID)” means the same as, equivalent to, or includes at least one of the following: QCL state index, TCI state index, spatial relation state index, reference signal index, spatial filter index, precoding index, RS resource index, CSI-RS resource index, SSB resource index, CSI-RS resource indicator (CRI), SSB resource indicator (SSBRI), CSI resource set ID, CSI resource setting ID, report setting ID, bitmap and / or combination index.

[0041] Furthermore, as used herein, the term “beam quality” means, is equivalent to, or includes at least one of the following: channel state information (CSI), reference signal received power (RSRP), reference signal received quality (RSRQ), signal-to-interference-plus-noise ratio (SINR), received signal strength indicator (RSSI), channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), layer indicator (LI), signal-to-noise ratio (SNR), block error rate (BLER), channel phase information, channel impulse response information, time information, confidence level information, probability information (e.g., probability of becoming the optimal beam), channel matrix (e.g., in the spatial-frequency domain or angle-delay domain), precoding matrix, location, fingerprinting based on channel observations, new measurements and / or enhancements to existing measurements (e.g., line-of-sight (LOS) / non-line-of-sight (LOS)). (sight, NLOS) identification, measurement time and / or angle, and / or measurement likelihood).

[0042] Furthermore, as used herein, the term “time instance” means the same as, equivalent to, or includes at least one of the following: time slot (e.g., first time slot, last time slot, or another time slot), sub-time slot, symbol (e.g., first symbol, last symbol, or another symbol), sub-symbol, frame, subframe, transmission timing, timing, or time unit (e.g., millisecond, microsecond as a non-limiting example).

[0043] In addition, in some embodiments, the spatial filter can be on the user device (UE) side or the network side (gNB), and / or the spatial filter is also called a spatial domain filter.

[0044] Furthermore, in some embodiments, "spatial relationship information" includes one or more reference RSs, which can be used to represent the same or quasi-spatial relationship between the target RS or channel and one or more reference RSs.

[0045] In addition, in some embodiments, the “beam state” is associated with or consists of one or more reference RSs and / or their corresponding QCL type parameters, wherein the QCL type parameters include at least one of the following, including a combination of two or more: [1] Doppler spread, [2] Doppler frequency shift, [3] delay spread, [4] average delay, [5] average gain and [6] spatial parameters.

[0046] Furthermore, as used herein, the term “TCI state” means the same as, equivalent to, or includes “beam state”.

[0047] Furthermore, as used herein, the term "spatial parameter" means the same as, equivalent to, or identical to the following: spatial parameter, spatial Rx parameter, or spatial filter.

[0048] Furthermore, as used herein, the terms 'QCL-TypeA', 'QCL-TypeB', 'QCL-TypeC', and 'QCL-TypeD' have the following definitions: -'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread} -'QCL-TypeB': {Doppler shift, Doppler spread} -'QCL-TypeC': {Doppler shift, average delay} -'QCL-TypeD': {Space Rx parameter} In addition, as used herein, “UL channel” may include PUCCH or PUSCH.

[0049] In addition, as used herein, “DL channel” may include PDCCH or PDSCH.

[0050] In addition, as used herein, “UL RS” can be or include at least one of the following: SRS, PRACH or demodulation reference signal (DMRS) (e.g., DMRS for PUSCH or PUCCH).

[0051] In addition, as used herein, “DL RS” can be or include at least one of the following: synchronization signal block (SSB), CSI-RS or DMRS (e.g., DMRS for PDSCH or PDCCH).

[0052] In addition, as used herein, “UL signal” can be or includes at least one of the following: UL channel or UL RS (e.g., SRS, Physical Random Access Channel (PRACH), DMRS, PUSCH or PUCCH).

[0053] In addition, as used herein, “DL signal” can be or includes at least one of the following: DL channel or DL ​​RS (e.g., SSB, CSI-RS, DMRS, PDSCH or PDCCH).

[0054] In addition, as used herein, the power control parameters include at least one of the following: target power (also referred to as "P0"), path loss RS, scaling factor for path loss (also referred to as "alpha"), or closed-loop process. Furthermore, as used herein, path loss may be or includes coupling loss.

[0055] Furthermore, as used herein, “DCI” means the same as or equivalent to “PDCCH”.

[0056] Furthermore, as used herein, the term “precoding information” means the same as, equivalent to, or includes at least one of the following: a precoding matrix indicator (PMI), a transmit precoding matrix indicator (TPMI), precoding, or beaming.

[0057] Furthermore, as used herein, the term Transmit Receive Point (TRP) means the same as, equivalent to, or includes at least one of the following: RS port, RS port group, RS resource, or RS resource set.

[0058] In addition, as used herein, the term “port group” means the same as, equivalent to, or includes at least one of the following: antenna group or user equipment (UE) port group.

[0059] Furthermore, as used herein, the term "model" means the same as, equivalent to, or includes at least one of the following: function, feature, functional module, functional block, processing method, information processing method, implementation method, feature, feature group, configuration, configuration set, dataset (e.g., for model training), or data-driven algorithm. Additionally or alternatively, as used herein, the term "model" is used to refer to the ability of user equipment 102 to perform specific processing or to have specific functions, features, and / or feature groups.

[0060] Furthermore, for at least some embodiments, different models may be associated with different configurations (e.g., different radio resource control (RRC) configurations). Additionally or alternatively, model activation may refer to activating the corresponding configuration for a given user equipment 102. Similarly, model deactivation may refer to deactivating the corresponding configuration, and / or switching and rollback may refer to switching to and rolling back to the configuration used without utilizing model activation, respectively.

[0061] Furthermore, as used herein, the term "prediction" refers to and / or includes model processing. For example, a model or algorithm (e.g., a UE-side algorithm) is capable of performing beam or CSI prediction to obtain channel information for reporting, for example, with low reference signal (RS) overhead. Additionally, as used herein, the term "prediction result" refers to channel information obtained through, for example, model or algorithmic processing (such as model inference).

[0062] Furthermore, the aspects described herein can be used or implemented in any type of communication network, including wireless communication networks, cellular communication networks, mobile communication networks, and future implementations of such networks, such as 6G mobile communication networks and higher-generation networks.

[0063] Figure 2 A flowchart of an example method 200 for wireless communication is shown. At block 202, user equipment 102 receives a first reference signal (RS) resource set and / or a second RS resource set. The first RS resource set and the second RS resource set are associated with each other. At block 204, user equipment 102 determines whether a condition is met. At block 204, user equipment 102 sends a channel information report associated with at least one of the first RS resource set or the second RS resource set based on whether the condition is met.

[0064] Figure 3 A flowchart of an example method 300 for wireless communication is shown. At block 302, network device 104 transmits a first reference signal (RS) resource set and / or a second RS resource set. The first RS resource set and the second RS resource set are associated with each other. At block 304, network device 104 receives a channel information report associated with at least one of the first RS resource set or the second RS resource set based on whether a condition is met.

[0065] In some embodiments of method 200 and / or method 300, the channel information report is based on the second RS resource set in response to the condition being met; and the channel information report is based on the first RS resource set in response to the condition not being met.

[0066] In some embodiments of method 200 and / or method 300, the condition includes: the latest timing of the first RS resource set and the latest timing of the second RS resource set, each no later than the corresponding Channel State Information (CSI) Reference Resource, are transmitted in the same time slot.

[0067] In some embodiments of method 200 and / or method 300, the condition includes: the time occupancy of the latest timing of the first RS resource set and the time occupancy of the latest timing of the second RS resource set overlap in at least one symbol, wherein the latest timing of the first RS resource set and the latest timing of the second RS resource set are each not later than the corresponding channel state information (CSI) reference resource.

[0068] In some embodiments of method 200 and / or method 300, the condition includes: the latest timing of the second RS resource set is within a time window centered on the timing of the first RS resource set, and the latest timing of the second RS resource set is not later than the corresponding Channel State Information (CSI) reference resource.

[0069] In some embodiments of method 200 and / or method 300, the condition includes: the time interval between the latest timing of the first RS resource set and the latest timing of the second RS resource set is not greater than a threshold, and the latest timing of the first RS resource set and the latest timing of the second RS resource set are each not later than the corresponding Channel State Information (CSI) reference resource.

[0070] In some embodiments of method 200 and / or method 300, for each timing of the first RS resource set, user equipment 102 selects the corresponding timing of the second RS resource set for the channel information report according to at least one selection rule.

[0071] In some embodiments of method 200 and / or method 300, the at least one selection rule includes: the selection is based on the timing of the second RS resource set which is in the same time slot or at the same moment as the timing of the first RS resource set; the selection is based on the latest timing of the second RS resource set, which is not later than the Channel State Information (CSI) Reference Resource and / or the timing of the first RS resource set; and / or the selection is based on the timing of the second RS resource set which is located within a time window centered on the timing of the first RS resource set.

[0072] Figure 4A method 400 for wireless communication is illustrated. At block 402, network device 104 determines whether a first condition is met. At block 404, network device 104 determines whether to transmit a first reference signal (RS) resource set based on whether the first condition is met. At block 406, network device 104 determines whether a second condition is met. At block 408, network device 104 transmits the entire second RS resource set or only a portion of the second RS resource set based on whether the second condition is met.

[0073] In some embodiments of method 400, at least one of the first condition or the second condition includes: the first time of the first RS resource set to be sent is the same as the second time of the second RS resource set to be sent; the time occupancy of the first RS resource set to be sent overlaps with the time occupancy of the second RS resource set to be sent in at least one symbol; and / or the time interval between the first time of the first RS resource set to be sent and the second time of the second RS resource set to be sent is not greater than a threshold.

[0074] In some embodiments of method 400, the portion of the second RS resource set includes: resources not included in the first RS resource set; or remaining resources that are not associated one-to-one with resources in the first RS resource set.

[0075] Figure 5 A method 500 for wireless communication is illustrated. At block 502, network device 104 sends a command to trigger the reception of K Channel State Information (CSI)-Reference Signal (RS) resources and to send a CSI report, wherein the command includes a configuration index value or identifier, and wherein K is a positive-zero integer. At block 504, network device 104 receives the CSI report, wherein the CSI report includes at least one CSI-RS resource indicator from the K CSI-RS resources.

[0076] Figure 6 A method 600 for wireless communication is illustrated. At block 602, user equipment 102 receives a command to trigger reception of K Channel State Information (CSI)-Reference Signal (RS) resources and to transmit a CSI report by the user equipment, wherein the command includes a configuration index value or identifier, and wherein K is a positive-zero integer. At block 604, in response to the command, user equipment 102 transmits the CSI report, wherein the CSI report includes at least one CSI resource indicator from the K CSI-RS resources.

[0077] In some embodiments of method 500 and / or method 600, the command includes the configuration index value, and the configuration index value includes a first configuration index value corresponding to at least K CSI-RS resource indexes.

[0078] In some embodiments of method 500 and / or method 600, the first configuration index value is one of a plurality of configuration index values, wherein the configuration indication provided by the network device is for the corresponding CSI-RS resource index of each of the plurality of configuration index values.

[0079] In some embodiments of method 500 and / or method 600, the command includes the configuration index value, and the configuration index value includes a second configuration index value that indicates to the user equipment that the K CSI-RS resources correspond to the K CSI-RS resource indexes in the latest measurement report.

[0080] In some embodiments of method 500 and / or method 600, the command includes the configuration index value, and the configuration index value includes a third configuration index value corresponding to at least K quasi-co-location (QCL) information indices.

[0081] In some embodiments of method 500 and / or method 600, the third configuration index value is one of a plurality of configuration index values, and wherein the configuration indication provided by the network device is for the corresponding QCL information index of each of the plurality of configuration index values.

[0082] In some embodiments of method 500 and / or method 600, the command includes the configuration index value, and the configuration index value includes a fourth configuration index value that indicates to the user equipment the K quasi-co-located (QCL) information indexes that are being used and that correspond to the K CSI-RS resource indexes in the latest measurement report.

[0083] In some embodiments of method 500 and / or method 600, the command includes an identifier, wherein the identifier identifies the K CSI-RS resources and / or the K corresponding QCL indices for the K CSI-RS resources based on the latest measurement report including the identifier.

[0084] In some embodiments of method 500 and / or method 600, each time the user equipment sends a new measurement report, the user equipment 102 increments the value of the identifier index, wherein the value of the identifier index is equal to the remainder of the identifier index divided by the integer M.

[0085] In some embodiments of method 500 and / or method 600, the latest measurement report includes the latest measurement report reported by user equipment 102 during the effective time interval.

[0086] In some embodiments of method 500 and / or method 600, the end time of the effective time interval is the start of the first symbol or time slot when the network device 104 sends a command to trigger the corresponding K CSI-RS resources or CSI reports.

[0087] In some embodiments of method 500 and / or method 600, the start time of the effective time interval includes an offset prior to the end time of the effective time interval.

[0088] In any of the various other embodiments, any combination of two or more of methods 200, 300, 400, 500, and / or 600 may be included. Further details will now be described of various actions performed by communication nodes of the wireless communication system 100 in relation to RS resource sets and / or CSI-RS resources, any of which may be incorporated into methods 200, 300, 400, 500, and / or other methods.

[0089] Example #1: (Reporting rules during the performance monitoring window) In some implementations, the transmit beam is selected from a predefined analog beam codebook. In such implementations, exhaustive search across all possible beams in the codebook is the optimal beam training scheme. However, this can lead to excessive training overhead, measurement power consumption, and processing latency, especially when using narrow pencil beams. For spatial beam prediction based on artificial intelligence (AI) / machine learning (ML) models, the optimal narrow beam can be predicted directly based on measurements of wide beams or at least, but not all, narrow beams. In this way, beam scanning on all narrow beams is not required, thus reducing RS overhead for beam management.

[0090] For simplicity, assume that network device 104 is configured with two reference signal (RS) resource sets, namely RS resource set A and RS resource set B. Furthermore, assume that the resources in RS resource set B are used for channel measurements and are associated with different wide beams and / or one or more narrow beams, and the measurement results are used as input to the AI / ML model. Additionally, assume that the resources in RS resource set A are used for prediction and are associated with different narrow beams, predicting the optimal narrow beam from these narrow beams through model inference. Typically, the number of resources in RS resource set B is much smaller than the number of resources in RS resource set A. During model inference, it may only be necessary to send RS resource set B to user equipment 102, and the optimal beam from RS resource set A can be predicted based on the AI / ML model output. However, limited by the generalization capability of the AI / ML model, the deployed AI / ML model may not always predict the optimal beam information. Therefore, to monitor the performance of the currently operating AI / ML model, RS resource set A and RS resource set B can be sent to user equipment 102 at one or more transmission times. In other words, from the perspective of the user equipment, the user equipment 102 can receive both RS resource set A and RS resource set B at one or more reception times. Figure 7 The diagram illustrates that RS resource set A and RS resource set B are each transmitted / received at multiple transmission / reception times. Upon receiving an RS resource set, user equipment 102 can obtain the predicted optimal beam information and the actual optimal beam information based on model inference for RS resource set B and channel measurements for RS resource set A, respectively. By comparing the predicted and actual optimal beam information, the beam prediction accuracy of the currently operating AI / ML model can be obtained, allowing for model deactivation, switching, etc., when necessary.

[0091] Furthermore, regarding channel information reporting, during model inference, the predicted optimal beam information obtained based on model inference of RS resource set B can be reported to network device 104. Conversely, during model monitoring, the actual optimal beam information based on channel measurements of RS resource set A may be reported instead of the predicted optimal beam information due to its higher reliability. In other words, whether to report measurement results or prediction results for beam reporting associated with RS resource set B and / or RS resource set A depends on the transmission of RS resource set A.

[0092] Furthermore, in some embodiments, for a specific beam reporting timing associated with a first RS resource set (e.g., set B) and / or a second RS resource set (e.g., set A), if at least one condition is met or satisfied (and / or user equipment 102 determines that at least one condition is met or satisfied), user equipment 102 may perform a beam report or send a beam report based on measurements of RS resource set A. Otherwise, if at least one condition is not met or satisfied (and / or user equipment 102 determines that at least one condition is not met or satisfied), user equipment 102 may perform a beam report or send a beam report based on predictions of RS resource set B. For at least some of these embodiments, the first RS resource set B and the second RS resource set A are associated with each other.

[0093] Furthermore, in some implementations, RS resource set timing can be transmitted and / or received in time relative to a reference resource (e.g., a CSI reference resource). For example, RS resource set timing can be transmitted and / or received before or after the reference resource. Similarly, beam reporting can be reported in time relative to a reference resource. Figure 8 The timing diagram shows the timing of the reception of RS resource set A and RS resource set B before the CSI reference resource, and the timing of the transmission of associated beam reports by user equipment 102 after the CSI reference resource.

[0094] Furthermore, in some implementations, a reference resource (e.g., a CSI reference resource) may designate a downlink time slot as a time reference, thereby indicating that channel / interference measurements no later than that downlink time slot will be used as input for a report (e.g., a CSI report). Accordingly, for any report, only associated RS resources earlier than the corresponding reference resource are considered. In this context, the reference resource is an offset prior to the reporting time.

[0095] Furthermore, in some embodiments, the at least one condition includes at least one of the following conditions.

[0096] The first condition includes that the latest RS resource set A and the latest RS resource set B, which are no later than the corresponding CSI reference resources, are transmitted in the same time slot.

[0097] The second condition includes: the time occupancy of the latest RS resource set B reception timing and the time occupancy of the RS resource set A reception timing overlap in at least one symbol (e.g., an orthogonal frequency division multiplexing (OFDM) symbol), wherein the latest RS resource set B reception timing and the RS resource set A reception timing are each no later than the corresponding CSI reference resource.

[0098] The third condition includes: the latest reception time of RS resource set A falls within a time window centered on the reception time of RS resource set B, and the latest reception time of RS resource set A is not later than the corresponding CSI reference resource. In some implementations of the third condition, the length of this time window is a predetermined value or configured and / or indicated by network device 104. For example, suppose... n It is the downlink time slot in which RS resource set B is sent, and T If it is the length of the time window, then the range of that time window extends from the time slot. nT / 2 To the time slot n+T / 2. The fourth condition includes: the time interval between the first or last symbol of the latest RS resource set B received no later than the corresponding CSI reference resource and the first or last symbol of the latest RS resource set A received is less than or no greater than a threshold. In some embodiments of the fourth condition, this threshold is a predetermined value or is configured and / or indicated by the network device 104.

[0099] The fifth condition includes: the time interval between the latest RS resource set B reception time slot (which may be the first time slot, the last time slot, or another time slot) and the latest RS resource set A reception time slot (which may be the first time slot, the last time slot, or another time slot) is less than or not greater than a threshold, and the latest RS resource set B reception time and the latest RS resource set A reception time are each not later than the corresponding CSI reference resource. In some embodiments of the fifth condition, the threshold is a predetermined value or is configured and / or indicated by network device 104.

[0100] The sixth condition includes: the time interval between the first symbol (or first timeslot) used to carry a specific beam report and the last symbol (or first symbol, last timeslot, or first timeslot) of the latest RS resource set A reception time no later than the corresponding CSI reference resource is greater than or not less than (or in other embodiments, less than or not greater than) a threshold. In some embodiments of the sixth condition, this threshold is a predetermined value or is configured and / or indicated by network device 104.

[0101] The seventh condition includes: the time interval between the time slot corresponding to the CSI reference resource and the time slot (e.g., the first time slot, the last time slot, or another time slot) that is no later than the latest RS resource set A reception time of the corresponding CSI reference resource is greater than or not less than (or, in other embodiments, less than or not greater than) a threshold. In some embodiments of the seventh condition, this threshold is a predetermined value or is configured and / or indicated by the network device.

[0102] The eighth condition includes: for aperiodic beam reports, the moment of receiving the latest RS resource set A, no later than the corresponding CSI reference resource, is later than the first symbol or first time slot after the PDCCH that triggered the aperiodic beam report.

[0103] Example #2: (Pairing between set A and set B during the performance monitoring window) As previously mentioned, user equipment 102 can compare the predicted optimal beam information and the actual optimal beam information during the model monitoring window, which are obtained based on the prediction of RS resource set B and the measurement of RS resource set A, respectively. Figure 9 A timing diagram is shown illustrating four RS resource set A reception times relative to RS resource set B reception times within the model monitoring window. Since both RS resource set B and RS resource set A can be transmitted multiple times (i.e., in multiple transmission times), user equipment 102 can perform selection of specific RS resource set A reception times and / or specific RS resource set B reception times for performance comparison or for other subsequent operations such as model training or fine-tuning.

[0104] Furthermore, in some embodiments, user equipment 102 may select the most recent RS resource set A reception time to compare with each RS resource set B reception time for one or more associated operations, such as performance monitoring or AI / ML model training. In some of these embodiments, for each RS resource set B reception time, user equipment 102 may select an RS resource set A reception time for comparison and / or pairing with that RS resource set B reception time according to at least one of the following rules.

[0105] The first rule includes: for a given RS resource set B reception timing, user equipment 102 will derive performance metrics (e.g., beam prediction accuracy or reference signal received power (RSRP) difference) based on the RS resource set A reception timing received in the same time slot or at the same moment as the given RS resource set B reception timing, to determine or calculate report content (e.g., monitoring results) and / or perform RS resource set A / B pairing.

[0106] The second rule includes: for a given RS resource set B reception timing, user equipment 102 will derive a performance metric (e.g., beam prediction accuracy or RSRP difference) based on the latest RS resource set A reception timing no later than the CSI reference resource and / or the given RS resource set B reception timing, to determine or calculate report content (e.g., monitoring results) and / or perform RS resource set A / B pairing.

[0107] The third rule includes: for a given RS resource set B reception timing, user equipment 102 will derive performance metrics (e.g., beam prediction accuracy or RSRP difference) based on the earliest RS resource set A reception no earlier than the CSI reference resource and / or the given RS resource set B reception timing, to determine or calculate report content (e.g., monitoring results) and / or perform RS resource set A / B pairing.

[0108] The fourth rule includes: for a given RS resource set B reception timing, user equipment 102 will derive a performance metric (e.g., beam prediction accuracy or RSRP difference) based on the timing of the RS resource set A reception timing that is closest to the CSI reference resource and / or the timing of the given RS resource set B reception timing, to determine or calculate report content (e.g., monitoring results) and / or perform RS resource set A / B pairing.

[0109] The fifth rule includes: for a given RS resource set B reception timing, user equipment 102 will derive performance metrics (e.g., beam prediction accuracy or RSRP difference) based on RS resource set A reception timings within a time window centered on the given RS resource set B reception timing, to determine or calculate report content (e.g., monitoring results) and / or perform RS resource set A / B pairing. In some implementations of the fifth rule, the length of the time window is a predetermined value or configured and / or indicated by network device 104. For example, suppose... n It refers to the downlink time slot when RS resource set B is sent, and T If the time window is the length, then the RS resource set A used for performance comparison is received during the time slot. nT / 2 To the time slot n+T / 2 Within the time window.

[0110] Example #3: (Transmission rules for set A / B) Furthermore, in some implementations for performance monitoring, both RS resource set A and RS resource set B can be sent to user equipment 102, including when RS resource set B transmits wide-beam information while RS resource set A transmits narrow-beam information. However, in implementations where both RS resource set B and RS resource set A transmit narrow-beam information, the beam set transmitted on RS resource set B may be a subset of the beam set transmitted on RS resource set A. In this case, it may be possible to send only RS resource set A—that is, not RS resource set B—for example, for performance monitoring, thereby avoiding resource waste.

[0111] As mentioned earlier, assume that the first RS resource set B is used for channel measurement, the second RS resource set A is used for prediction, and that the first RS resource set B and the second RS resource set A are correlated with each other. Furthermore, assume that time slots... n1 This refers to the downlink time slots (e.g., the first downlink time slot, the last downlink time slot, or another downlink time slot) of RS resource set B to be transmitted, and the time slots... n2 This refers to the downlink time slot (e.g., the first downlink time slot, the last downlink time slot, or another downlink time slot) of RS resource set A to be sent.

[0112] In some implementations, in response to determining that at least one condition is met or is satisfied, network device 104 may not transmit and / or determine not to transmit the first RS resource set B. In at least some of these implementations, at least one condition may include one or more of the following conditions.

[0113] The first condition includes: time slots n1 Equal to time slot n2. The second condition includes: time slots n2 Earlier than the time slot n1 (Or in other implementations of the second condition, time slot) n2 Later n1 ).

[0114] The third condition includes: time slots n1 With time slot n2 The time interval between them is less than or no greater than a threshold. In some implementations of the third condition, the threshold is a predetermined value or is configured and / or indicated by network device 104.

[0115] The fourth condition includes: the time interval between the first symbol (or last symbol) of RS resource set B and the last symbol (or first symbol) of RS resource set A is less than or not greater than a threshold. In some implementations of the fourth condition, the threshold is a predetermined value or is configured and / or indicated by network device 104.

[0116] Additionally or alternatively, in some embodiments, in response to determining that at least one second condition is met, network device 104 may send and / or determine to send only a portion (i.e., less than all) of RS resource set A. In some of these embodiments, the portion of RS resource set A sent may correspond to a set of one or more resource identifiers (IDs) or indices (e.g., set A minus set B) that are in RS resource set A but not in RS resource set B. In other embodiments, the portion of RS resource set A sent is or includes remaining resources that are not associated one-to-one with resources in RS resource set B. In some of these other embodiments, the one-to-one association is based on a mapping relationship between RS resource set A and RS resource set B.

[0117] In some implementations, in response to determining that at least one second condition is met, network device 104 may send and / or determine to send only a portion of the second RS resource set A. In at least some of these implementations, the at least one second condition may include one or more of the following conditions.

[0118] The first condition includes: time slots n1 Equal to time slot n2. The second condition includes: time slots n2 Earlier than the time slot n1 (Or in other implementations of the second condition, time slot) n2 Later n1 ).

[0119] The third condition includes: time slots n1 With time slot n2 The time interval between them is less than or no greater than a threshold. In some implementations of the third condition, the threshold is a predetermined value or is configured and / or indicated by network device 104.

[0120] The fourth condition includes: the time interval between the first symbol (or last symbol) of RS resource set B and the last symbol (or first symbol) of RS resource set A is less than or not greater than a threshold. In some implementations of the fourth condition, the threshold is a predetermined value or is configured and / or indicated by network device 104.

[0121] Example #4: (Beam indication for scanning the first K predicted beams without requiring a valid time interval) Limited by predictive capabilities, the UE-side AI / ML model may only predict the top K or K highest-ranking candidate optimal beams. Therefore, a second-stage beam scan can be performed on the predicted top K (or K highest-ranking) beams to obtain the final optimal beam information. User equipment 102, rather than network equipment 104, may know which Rx beam will be used to receive the top K beams. Therefore, when the second-stage beam scan process is triggered, user equipment 102 and network equipment 104 may not be able to perform, or at least not optimally perform, beam indication to indicate the receive (Rx) beam. The following implementation addresses this problem, including, but not limited to, associating the K beams to be transmitted or CSI-RS resources with the latest measurement report.

[0122] In some implementations, network device 104 (e.g., a base station) may transmit multiple CSI-RS resources to user equipment 102. Network device 104 may transmit different CSI-RS resources using the same or different beams. Based on measurements of the multiple CSI-RS resources and the execution of AI / ML model inference, user equipment 102 may deduce K CSI-RS resources with optimal performance (i.e., K candidate beams selected from a second RS resource set A), such as K CSI-RS resources with the maximum RSRP value. In at least some of these implementations, K is an integer greater than 1. Furthermore, in at least some of these implementations, user equipment 102 may send a measurement report to network device 104, wherein the measurement report includes indexes of the recommended K CSI-RS resources. For example, the K CSI-RS resource indexes may correspond to the K CSI-RS resources with optimal performance. Additionally, the measurement report may also include the corresponding beam quality (e.g., RSRP) for each of the K CSI-RS resources with optimal performance. User equipment 102 can derive the measurement report based on measurements of CSI-RS resources and / or inferences from AI / ML models.

[0123] Furthermore, in some implementations, it is assumed that User Equipment 102 reports K CSI-RS resources. At this stage, the network device (e.g., base station) 104 only knows the receive beam directions used by the User Equipment to provide good performance for the K CSI-RS resources. However, the network device (base station) 104 may not know, from the perspective of User Equipment 102, which of the receive beam directions used for the K CSI-RS resources performs best. Simultaneously, the network device (base station) 104 only knows the transmission beam directions used for the K CSI-RS resources it provides good performance for. However, the network device (base station) 104 does not know, from the perspective of the network device 104, which of the transmission beam directions used for the K CSI-RS resources performs best. That is, the network device 104 may not know which beam among the predicted first K beams is optimal. Therefore, the network device 104 may send one or more sets of CSI-RS resources to User Equipment 102, where each set of CSI-RS resources includes K CSI-RS resources. In other words, network device 104 can trigger a beam scan of the predicted first K beams to obtain the final optimal beam. Accordingly, network device 104 can instruct the corresponding QCL information for each CSI-RS so that user equipment 102 knows how to receive these CSI-RS resources. In response, user equipment 102 can report the measurement results to network device 104, which can then help network device 104 identify the optimal transmission beam direction and / or the optimal reception beam direction.

[0124] In some implementations, network device (e.g., base station) 104 may indicate a configuration index to user equipment 102. In some of these implementations, each configuration index may correspond to at least K CSI-RS resource indices. Alternatively, in some of these implementations, network device 104 may configure a corresponding CSI-RS resource index for each configuration index. Specifically, a configuration index may indicate to user equipment 102 that the K CSI-RS resources reported by user equipment 102 in its latest measurement report, corresponding to the K CSI-RS resource indices, were sent by network device 104. In other implementations, by default, a configuration index may indicate to user equipment 102 that the K CSI-RS resources reported by user equipment 102 in its latest measurement report were sent by network device 104, and thus, network device 104 may not configure a corresponding CSI-RS resource index. In this case, user equipment 102 can determine QCL information through the CSI-RS resource index corresponding to the configuration index. If more than K CSI-RS resources are configured for this configuration index, only K CSI-RS resources with smaller indices can be received by user equipment 102.

[0125] As further illustrated in Table 1 below, network device (e.g., base station) 104 can configure the following mapping between configuration indexes and CSI-RS resource indexes, such as by using bit values ​​with multiple bits for the configuration indexes to accommodate the number of different resource index scenarios. As shown in Table 1, if network device 104 indicates configuration index "00" to user equipment 102, user equipment 102, in response, can determine that the K CSI-RS resources reported by user equipment 102 were sent by network device 104, and thus, user equipment 102 can deduce the QCL information accordingly. Furthermore, if network device 104 indicates configuration index "01" to user equipment 102, user equipment 102, in response, can determine that CSI-RS resources with indices 1, 2, 3, and 4 were sent, and deduce the QCL information for these four CSI-RS resources accordingly. In this example, K equals four.

[0126] Table 1

[0127] It is worth noting that the number of bits used for the configuration index value in the first column of Table 1 and the corresponding CSI-RS resource indexes in the second column of Table 1 are merely examples. In other implementations, the number of bits used for the configuration index can be values ​​other than two, such as one, three, or more. Furthermore, or alternatively, a specific configuration index value can indicate different information than that shown in Table 1. For example, configuration index '01' instead of '00' can be used to indicate K CSI-RS resources reported by user equipment 102. As another example, configuration indexes can be used to indicate a specific set of CSI-RS resource indexes different from the four indices shown in Table 1. For example, bit value '11' can be used to indicate CSI-RS resource indices 3, 4, 5, 6 or 1, 2, 3, 4 or some other set of CSI-RS resource indexes. Various ways of implementing configuration indexes to indicate CSI-RS resource index information are possible.

[0128] Furthermore, in other embodiments, network device (e.g., base station) 104 may indicate a configuration index to user equipment 102. In some of these embodiments, each configuration index corresponds to at least K QCL information indices (e.g., TCI status configuration indices). Alternatively, network device 104 may configure a corresponding QCL information index for each configuration index. Specifically, a configuration index may indicate to user equipment 102 that the K QCL information indices corresponding to K CSI-RS resources reported by user equipment 102 in the latest measurement report are used. In other embodiments, by default, a configuration index may indicate to user equipment 102 that the K QCL information indices corresponding to K CSI-RS resources reported by user equipment 102 in the latest measurement report are used, and network device 104 may not configure the corresponding QCL resource index. In this case, user equipment 102 can determine QCL information through the K QCL information indices corresponding to the configuration index. If more than K QCL information indices are configured for the configuration index, only the K QCL information indices with smaller indices are applied by the UE.

[0129] As further illustrated in Table 2 below, network device (e.g., base station) 104 can configure the following mapping between configuration indexes and QCL information indexes, for example, by using bit values ​​with multiple bits for the configuration indexes to accommodate the number of different QCL information index scenarios. As shown in Table 2, if network device 104 indicates configuration index "00" to user equipment 102, user equipment 102, in response, can determine that the K QCL information indices corresponding to the CSI-RS resources reported by user equipment 102 were sent by network device 104. Furthermore, if network device 104 indicates configuration index "01" to user equipment 102, user equipment 102, in response, can determine that TCI states with indices 1, 2, 3, and 4 are correspondingly used for these four CSI-RS resources. In this example, K equals four.

[0130] Table 2

[0131] Similar to Table 1, the bit values ​​and information indicated by the configuration index in Table 2 are merely examples. Other implementations may use different numbers of bits for the configuration index, and / or the configuration index may indicate and / or correspond to QCL information index information different from that shown in Table 2. Various ways are possible to implement the configuration index corresponding to the QCL information index and / or TCI status index.

[0132] Furthermore, in some embodiments, user equipment 102 may send a measurement report to network device 104. In some of these embodiments, the measurement report may include a set of one or more recommended K CSI-RS resource indices, such as K CSI-RS resource indices corresponding to the K CSI-RS resources with optimal performance. In some embodiments, the measurement report may also include an identifier. For example, if the identifier is two bits in size, corresponding bit values ​​“00”, “01”, “10”, and “11” may be used. Additionally or alternatively, in some embodiments, user equipment 102 may increment the identifier index each time it sends a new measurement report. The identifier value may be equal to the remainder when the identifier index is divided by an integer M, i.e. For example, M could be Where X is the number of bits in the identifier field. When a CSI-RS resource transmission and / or CSI report is triggered, network device 104 can indicate this identifier to user equipment 102. In response, user equipment 102 can determine the corresponding CSI-RS resource and / or the corresponding QCL information based on the latest measurement report with the same identifier. In certain embodiments of these implementations, user equipment 102 can determine the corresponding CSI-RS resource and the corresponding QCL information based on the latest measurement report with the identifier indicated by network device 104.

[0133] To illustrate, Figure 10 A timing diagram is shown of user equipment 102 transmitting three measurement reports to network device (e.g., base station) 104 at respective times T1, T2, and T3. Figure 10 As shown, user equipment 102 can send a measurement report with identifier "01" to network device 104 at time T1, and can send a measurement report with identifier "10" to network device 104 at time T2. In response, network device 104 can analyze the measurement report and then select to trigger CSI-RS resources with indices 5, 6, 7, and 8. Accordingly, network device 104 can indicate the corresponding identifier "10" to user equipment 102. In response, user equipment 102 can determine the corresponding CSI-RS resource by using identifier "10". In some implementations, identifiers can be used to avoid potential misalignment between network device 104 and user equipment 102. For example, if user equipment 102 sends a measurement report to network device 104 but network device 104 (e.g., a base station) does not successfully receive the measurement report, user equipment 102 and network device 104 may have different understandings of the latest measurement report. However, using identifiers can avoid such misalignment or misunderstanding. In other words, by using identifiers, network device 104 and user device 102 can reach a consensus on the latest measurement report.

[0134] Example #5: (Beam indication for scanning the first K predicted beams with valid time intervals) Furthermore, in some embodiments, when a network device (e.g., a base station) 104 triggers a CSI-RS or CSI report, the information associated with the trigger should be up-to-date to avoid invalidating the report due to the use of altered information. For example, if network device 104 triggers a CSI-RS resource with identifier "01," but a measurement report with identifier "01" was sent to the base station ten seconds ago, then the channel has changed sufficiently to invalidate the previous measurement report. In some implementations, a valid time interval can be used to ensure that the information is up-to-date.

[0135] In some embodiments that include a valid time interval, the end time of the valid time interval is the start of the first symbol or time slot when the network device (e.g., base station) 104 sends a command to trigger a CSI report indicating a CSI-RS resource or a configuration index (i.e., a first configuration index, a second configuration index, a third configuration index, or a fourth configuration index) or identifier. In other embodiments, the end time of the valid time interval is an offset O1 relative to the start of the first symbol or time slot when the network device 104 sends a command to trigger a CSI report indicating a CSI-RS resource or a configuration index or identifier. In some of these embodiments, the offset O1 may be one or more symbols to allow the network device 104 some time to process measurement reports sent from the user equipment 102.

[0136] Alternatively, in some embodiments, the start time of the effective time interval may be an offset O2 preceding the end time of the effective time interval. In some of these embodiments, the offset O2 may be one or more symbols, time slots, or other time units (e.g., seconds).

[0137] Furthermore, in some embodiments, network device (e.g., base station) 104 may indicate configuration indexes to user equipment 102, wherein each configuration index corresponds to at least K CSI-RS resource indexes. In some of these embodiments, network device 104 may configure a corresponding CSI-RS resource index for each configuration index. Specifically, a configuration index may indicate to user equipment 102 that K CSI-RS resources were sent by network device 104, wherein these K CSI-RS resources correspond to K CSI-RS resource indexes reported by user equipment 102 in its latest measurement report during the valid time interval. In other embodiments of these embodiments, by default, a configuration index may indicate to user equipment 102 that K CSI-RS resources were sent by network device 104, and correspondingly, network device 104 may not configure a corresponding CSI-RS resource index, wherein these K CSI-RS resources correspond to K CSI-RS resource indexes reported by user equipment 102 in its latest measurement report during the valid time interval.

[0138] In other embodiments, network device 104 (e.g., a base station) may indicate configuration indexes to user equipment 102, wherein each configuration index corresponds to at least K QCL information indexes (e.g., TCI status configuration indexes). In some of these embodiments, network device 104 may configure a corresponding QCL information index for each configuration index. Specifically, a configuration index may indicate to user equipment 102 that K QCL information indexes corresponding to K CSI-RS resources reported by user equipment 102 in its latest measurement report during the valid time interval are used. In other embodiments of these embodiments, by default, a configuration index may indicate to user equipment 102 that K QCL information indexes corresponding to K CSI-RS resources reported by user equipment 102 in its latest measurement report during the valid time interval are used, and correspondingly, network device 104 may not configure the corresponding QCL information index. In this case, user equipment 102 can determine QCL information through the K QCL information indexes corresponding to the configuration index.

[0139] In other embodiments, user equipment 102 may send a measurement report to network device 104, wherein the measurement report includes K CSI-RS resource indices corresponding to K CSI-RS resources with optimal performance, and an identifier (e.g., an index). For at least some of these embodiments, network device 104 may indicate the identifier to user equipment 102 when a CSI-RS resource transmission and / or CSI reporting is triggered. In response, user equipment 102 determines the corresponding CSI-RS resource and / or the corresponding QCL information based on the identifier. In certain embodiments of these implementations, user equipment 102 may determine the corresponding CSI-RS resource and / or the corresponding QCL information based on the latest measurement report with the identifier indicated by network device 104 during the effective time interval.

[0140] The above description and accompanying drawings provide specific example embodiments and implementations. However, the described subject matter can be implemented in a variety of different forms, and therefore, the covered or claimed subject matter is intended to be construed as not being limited to any of the example embodiments set forth herein. A suitably broad scope is intended for the claimed or covered subject matter. In particular, for example, the subject matter can be embodied as a method, apparatus, component, system, or non-transitory computer-readable medium for storing computer code. Accordingly, embodiments can take the form, for example, hardware, software, firmware, storage medium, or any combination thereof. For example, the above-described method embodiments can be implemented by a component, apparatus, or system including a memory and a processor by executing computer code stored in the memory.

[0141] Throughout the specification and claims, terms may have suggestive or implied meanings beyond their explicitly stated meanings in the context. Similarly, the phrase "in one embodiment / implementation" as used herein does not necessarily refer to the same embodiment, and the phrase "in another embodiment / implementation" as used herein does not necessarily refer to different embodiments. For example, the claimed subject matter is intended to include, in whole or in part, combinations of exemplary embodiments.

[0142] Generally, terms can be understood at least in part based on their usage in the context. For example, terms used herein, such as “and,” “or,” or “and / or,” can include a variety of meanings that can depend at least in part on the context in which they are used. Typically, “or,” when used to associate a list such as A, B, or C, is intended to mean A, B, and C (inclusive meaning) and A, B, or C (exclusive meaning). Furthermore, depending at least in part on the context, the term “one or more,” as used herein, can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Similarly, depending at least in part on the context, terms such as “a,” “an,” or “the” can be understood to convey either a singular or a plural usage. Moreover, the term “based on” can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, also depending at least in part on the context, to allow for the presence of additional factors that may not be explicitly described.

[0143] References to features, advantages, or similar language throughout this specification do not imply that all features and advantages achievable using this solution should be included or included in any single implementation thereof. Rather, references to such features and advantages are to be understood as indicating that a particular feature, advantage, or characteristic described in connection with an embodiment is included in at least one embodiment of this solution. Therefore, throughout this specification, discussions of features and advantages and similar language may, but do not necessarily, refer to the same embodiment.

[0144] Furthermore, the features, advantages, and characteristics described herein can be combined in any suitable manner in one or more embodiments. Based on the description herein, those skilled in the art will recognize that this solution can be practiced without one or more of the specific features or advantages of a particular embodiment. In other instances, additional features and advantages may be recognized in certain embodiments that may not be present in all embodiments of this solution.

[0145] The subject matter of this disclosure may also include, in particular, the following aspects: The first aspect includes a method for wireless communication, the method comprising: receiving, by a user equipment, a first reference signal (RS) resource set and / or a second RS resource set, wherein the first RS resource set and the second RS resource set are associated with each other; determining, by the user equipment, whether the conditions are met; and transmitting, by the user equipment, a channel information report associated with at least one of the first RS resource set or the second RS resource set based on whether the conditions are met.

[0146] The second aspect includes a method for wireless communication, the method comprising: transmitting a first reference signal (RS) resource set and / or a second RS resource set by a network device, wherein the first RS resource set and the second RS resource set are associated with each other; and receiving a channel information report associated with at least one of the first RS resource set or the second RS resource set by the network device based on whether a condition is met.

[0147] The third aspect includes either the first aspect or the second aspect, and further includes: wherein, in response to the condition being met, the channel information report is based on the second RS resource set; and in response to the condition not being met, the channel information report is based on the first RS resource set.

[0148] The fourth aspect includes any one of the first to third aspects, and further includes: wherein the condition includes: the time occupancy of the latest timing of the first RS resource set and the time occupancy of the latest timing of the second RS resource set overlap in at least one symbol, wherein the latest timing of the first RS resource set and the latest timing of the second RS resource set are each not later than the corresponding Channel State Information (CSI) reference resource.

[0149] The fifth aspect includes any one of the first to third aspects, and further includes: wherein the time occupancy of the latest timing of the first RS resource set and the time occupancy of the latest timing of the second RS resource set overlap in at least one symbol, wherein the latest timing of the first RS resource set and the latest timing of the second RS resource set are each not later than the corresponding channel state information (CSI) reference resource.

[0150] The sixth aspect includes any one of the first to third aspects, and further includes: wherein the condition includes: the latest timing of the second RS resource set is within a time window centered on the timing of the first RS resource set, and the latest timing of the second RS resource set is not later than the corresponding Channel State Information (CSI) reference resource.

[0151] The seventh aspect includes any one of the first to third aspects, and further includes: wherein the condition includes: the time interval between the latest timing of the first RS resource set and the latest timing of the second RS resource set is not greater than a threshold, and the latest timing of the first RS resource set and the latest timing of the second RS resource set are each not later than the corresponding channel state information (CSI) reference resource.

[0152] The eighth aspect includes any one of the first to eighth aspects, and further includes: for each time of the first RS resource set, the user equipment selects the corresponding time of the second RS resource set for the channel information report according to at least one selection rule.

[0153] The ninth aspect includes the eighth aspect, and further includes: wherein the at least one selection rule includes: the selection is based on the timing of the second RS resource set which is in the same time slot or at the same moment as the timing of the first RS resource set; the selection is based on the latest timing of the second RS resource set, the latest timing of the second RS resource set being no later than the timing of the Channel State Information (CSI) Reference Resource and / or the timing of the first RS resource set; and / or the selection is based on the timing of the second RS resource set which is located within a time window centered on the timing of the first RS resource set.

[0154] The tenth aspect includes a method for wireless communication, the method comprising: determining by a network device whether a first condition is met; determining by the network device whether to transmit a first reference signal (RS) resource set based on whether the first condition is met; determining by the network device whether a second condition is met; and transmitting, by the network device, the entirety or only a portion thereof, of a second RS resource set based on whether the second condition is met.

[0155] The eleventh aspect includes the tenth aspect, and further includes: wherein at least one of the first condition or the second condition includes: the first time of the first RS resource set to be sent is the same as the second time of the second RS resource set to be sent; the time occupancy of the first RS resource set to be sent overlaps with the time occupancy of the second RS resource set to be sent in at least one symbol; and / or the time interval between the first time of the first RS resource set to be sent and the second time of the second RS resource set to be sent is not greater than a threshold.

[0156] The twelfth aspect includes either the tenth or eleventh aspect, and further includes: wherein the portion of the second RS resource set includes: resources not included in the first RS resource set; or remaining resources that are not associated one-to-one with resources in the first RS resource set.

[0157] The thirteenth aspect includes a method for wireless communication, the method comprising: sending a command by a network device to trigger reception of K Channel State Information (CSI)-Reference Signal (RS) resources and to send a CSI report, wherein the command includes a configuration index value or identifier, and wherein K is an integer greater than zero; and receiving the CSI report by the network device, wherein the CSI report includes at least one CSI-RS resource indicator of the K CSI-RS resources.

[0158] The fourteenth aspect includes a method for wireless communication, the method comprising: receiving, by a user equipment, a command for triggering reception of K Channel State Information (CSI)-Reference Signal (RS) resources and sending a CSI report, wherein the command includes a configuration index value or identifier, and wherein K is an integer greater than zero; and, in response to the command, sending the CSI report by the user equipment, wherein the CSI report includes at least one CSI resource indicator of the K CSI-RS resources.

[0159] The fifteenth aspect includes either the thirteenth or the fourteenth aspect, and further includes: wherein the command includes the configuration index value, and the configuration index value includes a first configuration index value corresponding to at least K CSI-RS resource indexes.

[0160] The sixteenth aspect includes the fifteenth aspect, and further includes: wherein the first configuration index value is one of a plurality of configuration index values, wherein the configuration indication provided by the network device is for the corresponding CSI-RS resource index of each of the plurality of configuration index values.

[0161] The seventeenth aspect includes either the thirteenth or the fourteenth aspect, and further includes: wherein the command includes the configuration index value, and the configuration index value includes a second configuration index value, the second configuration index value indicating to the user equipment that the K CSI-RS resources correspond to the K CSI-RS resource indexes in the latest measurement report.

[0162] The eighteenth aspect includes either the thirteenth or the fourteenth aspect, and further includes: wherein the command includes the configuration index value, and the configuration index value includes a third configuration index value corresponding to at least K quasi-co-address (QCL) information indices.

[0163] The nineteenth aspect includes the eighteenth aspect, and further includes: wherein the third configuration index value is one of a plurality of configuration index values, and wherein the configuration indication provided by the network device is for the corresponding QCL information index of each of the plurality of configuration index values.

[0164] The twentieth aspect includes either the thirteenth or the fourteenth aspect, and further includes: wherein the command includes the configuration index value, and the configuration index value includes a fourth configuration index value, the fourth configuration index value indicating to the user equipment that K quasi-co-located (QCL) information indexes corresponding to K CSI-RS resource indexes in the latest measurement report are used.

[0165] The twenty-first aspect includes either the thirteenth or the fourteenth aspect, and further includes: wherein the command includes an identifier, wherein the identifier identifies the K CSI-RS resources and / or K corresponding QCL indices for the K CSI-RS resources based on the latest measurement report including the identifier.

[0166] The twenty-second aspect includes the thirteenth aspect, and further includes: each time the user equipment sends a new measurement report, the user equipment increments the value of the identifier index, wherein the value of the identifier index is equal to the remainder of the identifier index divided by the integer M.

[0167] The twenty-third aspect includes any one of the seventeenth, twentieth, or twenty-first aspects, and further includes: wherein the latest measurement report includes the latest measurement report reported by the user equipment during the effective time interval.

[0168] The twenty-fourth aspect includes the twenty-third aspect, and further includes: wherein the end time of the effective time interval is the start of the first symbol or time slot at which the network device sends the command for triggering the corresponding K CSI-RS resources and / or the CSI report.

[0169] The twenty-fifth aspect includes the twenty-fourth aspect, and further includes: wherein the start time of the effective time interval includes an offset prior to the end time of the effective time interval.

[0170] The twenty-sixth aspect includes a wireless communication device comprising a processor and a memory, wherein the processor is configured to read code from the memory to implement any one of the first to twenty-fifth aspects.

[0171] The twenty-seventh aspect includes a computer program product comprising a computer-readable program medium including code stored on the computer-readable program medium, the code, when executed by a processor, causing the processor to implement any one of the first to twenty-fifth aspects.

[0172] In addition to the features mentioned in each of the individual aspects listed above, some examples may be shown individually or in combination as optional features mentioned in the subordinate aspects and / or disclosed in the description above and shown in the figures.

Claims

1. A method for wireless communication, the method comprising: The user equipment receives a first reference signal (RS) resource set and / or a second RS resource set, wherein the first RS resource set and the second RS resource set are associated with each other; The user equipment determines whether the condition is met; and The user equipment sends a channel information report associated with at least one of the first RS resource set or the second RS resource set based on whether the condition is met.

2. A method for wireless communication, the method comprising: The network device transmits a first reference signal (RS) resource set and / or a second RS resource set, wherein the first RS resource set and the second RS resource set are associated with each other; and The network device receives a channel information report associated with at least one of the first RS resource set or the second RS resource set based on whether a condition is met.

3. The method according to any one of claims 1 or 2, wherein In response to the condition being met, the channel information report is based on the second RS resource set; and In response to the condition not being met, the channel information report is based on the first RS resource set.

4. The method according to any one of claims 1 or 2, wherein, The condition includes that the latest timing of the first RS resource set and the latest timing of the second RS resource set, each no later than the corresponding Channel State Information (CSI) Reference Resource, are transmitted in the same time slot.

5. The method according to any one of claims 1 or 2, wherein, The conditions include: the time occupancy of the latest timing of the first RS resource set and the time occupancy of the latest timing of the second RS resource set overlap in at least one symbol, wherein the latest timing of the first RS resource set and the latest timing of the second RS resource set are each not later than the corresponding Channel State Information (CSI) reference resource.

6. The method according to any one of claims 1 or 2, wherein, The conditions include: the latest timing of the second RS resource set is within a time window centered on the timing of the first RS resource set, and the latest timing of the second RS resource set is not later than the corresponding Channel State Information (CSI) reference resource.

7. The method according to any one of claims 1 or 2, wherein, The conditions include: the time interval between the latest timing of the first RS resource set and the latest timing of the second RS resource set is not greater than a threshold, and the latest timing of the first RS resource set and the latest timing of the second RS resource set are each not later than the corresponding Channel State Information (CSI) reference resource.

8. The method according to claim 1, further comprising: For each timing of the first RS resource set, the user equipment selects the corresponding timing of the second RS resource set for the channel information report according to at least one selection rule.

9. The method according to claim 8, wherein, The at least one selection rule includes: The selection is based on the timing of the second RS resource set, which is in the same time slot or at the same moment as the timing of the first RS resource set. The selection is based on the latest timing of the second RS resource set, which is no later than the timing of the Channel State Information (CSI) reference resource and / or the timing of the first RS resource set; and / or The selection is based on the timing of the second RS resource set, which is located within a time window centered on the timing of the first RS resource set.

10. A method for wireless communication, the method comprising: The network device determines whether the first condition is met. The network device determines whether to send the first reference signal (RS) resource set based on whether the first condition is met. The network device determines whether the second condition is met; as well as The network device sends the entire or only part of the second RS resource set based on whether the second condition is met.

11. The method according to claim 10, wherein, At least one of the first condition or the second condition includes: The first moment of the first RS resource set to be sent is the same as the second moment of the second RS resource set to be sent; The time occupancy of the first RS resource set to be transmitted overlaps with the time occupancy of the second RS resource set to be transmitted in at least one symbol; and / or The time interval between the first moment of the first RS resource set to be sent and the second moment of the second RS resource set to be sent is not greater than a threshold.

12. The method according to claim 10, wherein, The second RS resource set includes: resources not included in the first RS resource set; or remaining resources that are not associated one-to-one with resources in the first RS resource set.

13. A method for wireless communication, the method comprising: A command is sent by a network device to trigger the reception of K Channel State Information (CSI)-Reference Signal (RS) resources and the transmission of a CSI report, wherein the command includes a configuration index value or identifier, and wherein K is a positive integer; and The network device receives the CSI report, wherein the CSI report includes at least one CSI-RS resource indicator for the K CSI-RS resources.

14. A method for wireless communication, the method comprising: The user equipment receives a command to trigger the reception of K Channel State Information (CSI)-Reference Signal (RS) resources and the transmission of a CSI report, wherein the command includes a configuration index value or identifier, and wherein K is a positive integer; and In response to the command, the user equipment sends the CSI report, wherein the CSI report includes at least one CSI resource indicator of the K CSI-RS resources.

15. The method according to any one of claim 13 or 14, wherein, The command includes the configuration index value, and the configuration index value includes a first configuration index value corresponding to at least K CSI-RS resource indexes.

16. The method according to claim 15, wherein, The first configuration index value is one of a plurality of configuration index values, wherein the configuration indication provided by the network device is for the corresponding CSI-RS resource index of each of the plurality of configuration index values.

17. The method according to any one of claims 13 or 14, wherein, The command includes the configuration index value, and the configuration index value includes a second configuration index value, which indicates to the user equipment that the K CSI-RS resources correspond to the K CSI-RS resource indexes in the latest measurement report.

18. The method according to any one of claims 13 or 14, wherein, The command includes the configuration index value, and the configuration index value includes a third configuration index value corresponding to at least K quasi-co-location (QCL) information indices.

19. The method according to claim 18, wherein, The third configuration index value is one of a plurality of configuration index values, wherein the configuration indication provided by the network device is for the corresponding QCL information index of each of the plurality of configuration index values.

20. The method according to any one of claims 13 or 14, wherein, The command includes the configuration index value, and the configuration index value includes a fourth configuration index value, which indicates to the user equipment that K quasi-co-located (QCL) information indexes corresponding to K CSI-RS resource indexes in the latest measurement report are used.

21. The method according to any one of claims 13 or 14, wherein, The command includes an identifier, wherein the identifier identifies the K CSI-RS resources and / or the K corresponding QCL indices for the K CSI-RS resources based on the latest measurement report including the identifier.

22. The method of claim 13, further comprising: Each time the user equipment sends a new measurement report, the user equipment increments the value of the identifier index, wherein the value of the identifier index is equal to the remainder when the identifier index is divided by the integer M.

23. The method according to any one of claims 17, 20 or 21, wherein, The latest measurement report includes the latest measurement report reported by the user equipment during the valid time interval.

24. The method according to claim 23, wherein, The end time of the effective time interval is the start of the first symbol or time slot when the network device sends the command to trigger the corresponding K CSI-RS resources and / or the CSI report.

25. The method according to claim 24, wherein, The start time of the effective time interval includes the offset before the end time of the effective time interval.

26. A wireless communication device, comprising a processor and a memory, wherein, The processor is configured to read code from the memory to implement the method according to any one of claims 1 to 25.

27. A computer program product comprising a computer-readable program medium including code stored on the computer-readable program medium, the code, when executed by a processor, causing the processor to perform the method according to any one of claims 1 to 25.