UE- initiated beam management measurement reporting

Abstract

A method of user equipment (UE)-initiated beam management (UEBM) measurement reporting. After a transmission of a first beam management report is initiated by a UE, the UE transmits a second beam management report indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator (TCI) state corresponding to reference signals for measurement. The UE monitors response information for the second beam management report. The first report may indicate a resource request for the second report or may indicate a presence of the second report. If there is no response to the second report e.g. the UE does not receive an acknowledgement of the second report, the UE may retransmit the second report, or ff there are no pre-configured resources for the second report, the UE may retransmit the first report to request resources for the second report.

Description

FIELD

[0001] Various example embodiments of the present disclosure generally relate to the field of telecommunication and in particular, to methods, devices, apparatuses and computer readable storage medium for user equipment (UE) initiated beam management measurement reporting. BACKGROUND

[0002] Several technologies are proposed to improve communication quality. For example, beam management is introduced. Beam management is a set of Layer 1 (physical, PHY) and Layer 2 (medium access control, MAC) procedures to establish and retain an optimal beam pair for good connectivity. In particular, UE may perform certain measurements and report them to a network device. Therefore, it is worth studying on the reporting. SUMMARY

[0003] In a first aspect of the present disclosure, there is provided a first apparatus. The first apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus to: determine whether a beam management initiated by the first apparatus is triggered based on a measurement result at the first apparatus; based on a determination that the beam management is triggered, transmit, to the second apparatus, the first report for the beam management in a scheduling request that indicates a resource request for a second report for the beam management or indicates a presence of the second report for the beam management; and monitor response information of the first report for the beam management, the response information comprising an acknowledge of the first report or a set of resources allocated to the second report for the beam management.

[0004] In a second aspect of the present disclosure, there is provided a second apparatus. The second apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus to: receive, from a first apparatus, a first report for a beam management in a scheduling request that indicates a resource request for a second report for the beam management or indicates a presence of the second report for the beam management, wherein the beam management initiated by the first apparatus is triggered based on a measurement result at the first apparatus; and transmit, to the first apparatus, response information of the first report for the beam management, the response information comprising an acknowledge of the first report or a set of resources allocated to the second report for the beam management.

[0005] In a third aspect of the present disclosure, there is provided a first apparatus. The first apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus to: after a transmission of a first report for beam management that is initiated by the first apparatus, transmit, to a second apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement; and monitor response information for the second report for the beam management.

[0006] In a fourth aspect of the present disclosure, there is provided a second apparatus. The second apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus to: after a reception of a first report for beam management that is initiated by a first apparatus, receive, from a first apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement; and transmit, to the second apparatus, response information for the second report for the beam management.

[0007] In a fifth aspect of the present disclosure, there is provided a method. The method comprises: determining whether a beam management initiated by the first apparatus is triggered based on a measurement result at the first apparatus; based on a determination that the beam management is triggered, transmitting to the second apparatus, the first report for the beam management in a scheduling request that indicates a resource request for a second report for the beam management or indicates a presence of the second report for the beam management; and monitoring response information of the first report for the beam management, the response information comprising an acknowledge of the first report or a set of resources allocated to the second report for the beam management.

[0008] In a sixth aspect of the present disclosure, there is provided a method. The method comprises: receiving, from a first apparatus, a first report for a beam management in a scheduling request that indicates a resource request for a second report for the beam management or indicates a presence of the second report for the beam management, wherein the beam management initiated by the first apparatus is triggered based on a measurement result at the first apparatus; and transmitting, to the first apparatus, response information of the first report for the beam management, the response information comprising an acknowledge of the first report or a set of resources allocated to the second report for the beam management.

[0009] In a seventh aspect of the present disclosure, there is provided a method. The method comprises: after a transmission of a first report for beam management that is initiated by the first apparatus, transmitting, to a second apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement; and monitoring response information for the second report for the beam management.

[0010] In an eighth aspect of the present disclosure, there is provided a method. The method comprises: after a reception of a first report for beam management that is initiated by a first apparatus, receiving from a first apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement; and transmitting, to the second apparatus, response information for the second report for the beam management.

[0011] In a ninth aspect of the present disclosure, there is provided a first apparatus. The first apparatus comprises means for determining whether a beam management initiated by the first apparatus is triggered based on a measurement result at the first apparatus; means for based on a determination that the beam management is triggered, transmitting to the second apparatus, the first report for the beam management in a scheduling request that indicates a resource request for a second report for the beam management or indicates a presence of the second report for the beam management; and means for monitoring response information of the first report for the beam management, the response information comprising an acknowledge of the first report or a set of resources allocated to the second report for the beam management.

[0012] In a tenth aspect of the present disclosure, there is provided a second apparatus. The second apparatus comprises means for receiving, from a first apparatus, a first report for a beam management in a scheduling request that indicates a resource request for a second report for the beam management or indicates a presence of the second report for the beam management, wherein the beam management initiated by the first apparatus is triggered based on a measurement result at the first apparatus; and means for transmitting, to the first apparatus, response information of the first report for the beam management, the response information comprising an acknowledge of the first report or a set of resources allocated to the second report for the beam management.

[0013] In an eleventh aspect of the present disclosure, there is provided a first apparatus. The first apparatus comprises means for after a transmission of a first report for beam management that is initiated by the first apparatus, transmitting, to a second apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement; and means for monitoring response information for the second report for the beam management.

[0014] In a twelfth aspect of the present disclosure, there is provided a second apparatus. The second apparatus comprises means for after a reception of a first report for beam management that is initiated by a first apparatus, receiving, from a first apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement; and means for transmitting, to the second apparatus, response information for the second report for the beam management.

[0015] In a thirteenth aspect of the present disclosure, there is provided a computer readable medium. The computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the fifth aspect.

[0016] In a fourteenth aspect of the present disclosure, there is provided a computer readable medium. The computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the sixth aspect.

[0017] In a fifteenth aspect of the present disclosure, there is provided a computer readable medium. The computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the seventh aspect.

[0018] In a sixteenth aspect of the present disclosure, there is provided a computer readable medium. The computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the eighth aspect.

[0019] It is to be understood that the Summary section is not intended to identify key or essential features of embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become easily comprehensible through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Some example embodiments will now be described with reference to the accompanying drawings, where:

[0021] FIG. 1 illustrates an example communication environment in which example embodiments of the present disclosure can be implemented;

[0022] FIG. 2 illustrates a schematic diagram of beam management procedures;

[0023] FIG. 3A and FIG. 3B illustrate signaling charts for beam management reporting according to some example embodiments of the present disclosure, respectively;

[0024] FIG. 4A and FIG. 4B illustrate signaling charts for measurements according to some example embodiments of the present disclosure, respectively;

[0025] FIG. 5A and FIG. 5B illustrate schematic diagrams of scheduling request like beam management report procedure according to some example embodiments of the present disclosure, respectively;

[0026] FIG. 6 illustrates a flowchart of a method implemented at a first apparatus in accordance with some example embodiments of the present disclosure;

[0027] FIG. 7 illustrates a flowchart of a method implemented at a second apparatus in accordance with some example embodiments of the present disclosure;

[0028] FIG. 8 illustrates a flowchart of a method implemented at a first apparatus in accordance with some example embodiments of the present disclosure;

[0029] FIG. 9 illustrates a flowchart of a method implemented at a second apparatus in accordance with some example embodiments of the present disclosure;

[0030] FIG. 10 illustrates a simplified block diagram of a device that is suitable for implementing example embodiments of the present disclosure; and

[0031] FIG. 11 illustrates a block diagram of an example computer readable medium in accordance with some example embodiments of the present disclosure.

[0032] Throughout the drawings, the same or similar reference numerals represent the same or similar element. DETAILED DESCRIPTION

[0033] Principle of the present disclosure will now be described with reference to some example embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. Embodiments described herein can be implemented in various manners other than the ones described below.

[0034] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.

[0035] References in the present disclosure to “one embodiment,” “an embodiment,” “an example embodiment,” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

[0036] It shall be understood that although the terms “first,” “second” and the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.

[0037] As used herein, “at least one of the following: ” and “at least one of ” and similar wording, where the list of two or more elements are joined by “and” or “or”, mean at least any one of the elements, or at least any two or more of the elements, or at least all the elements.

[0038] As used herein, unless stated explicitly, performing a step “in response to A” does not indicate that the step is performed immediately after “A” occurs and one or more intervening steps may be included.

[0039] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises”, “comprising”, “has”, “having”, “includes” and / or “including”, when used herein, specify the presence of stated features, elements, and / or components etc., but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof.

[0040] As used in this application, the term “circuitry” may refer to one or more or all of the following: (a) hardware-only circuit implementations (such as implementations in only analog and / or digital circuitry) and (b) combinations of hardware circuits and software, such as (as applicable): (i) a combination of analog and / or digital hardware circuit(s) with software / firmware and (ii) any portions of hardware processor(s) with software (including digital signal processor(s)), software, and memory(ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions) and (c) hardware circuit(s) and or processor(s), such as a microprocessor s) or a portion of a microprocessor(s), that requires software (e.g., firmware) for operation, but the software may not be present when it is not needed for operation.

[0041] This definition of circuitry applies to all uses of this term in this application, including in any claims. As a further example, as used in this application, the term circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware. The term circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.

[0042] As used herein, the term “communication network” refers to a network following any suitable communication standards, such as New Radio (NR), Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), Narrow Band Internet of Things (NB-IoT) and so on. Furthermore, the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the first generation (1G), the second generation (2G), 2.5G, 2.75G, the third generation (3G), the fourth generation (4G), 4.5G, the fifth generation (5G) communication protocols, and / or any other protocols either currently known or to be developed in the future. Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned system.

[0043] As used herein, the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom. The network device may refer to a base station (BS) or an access point (AP), for example, a node B (NodeB or NB), an evolved NodeB (eNodeB or eNB), an NR NB (also referred to as a gNB), a Remote Radio Unit (RRU), a radio header (RH), a remote radio head (RRH), a relay, an Integrated Access and Backhaul (IAB) node, a low power node such as a femto, a pico, a non-terrestrial network (NTN) or non-ground network device such as a satellite network device, a low earth orbit (LEO) satellite and a geosynchronous earth orbit (GEO) satellite, an aircraft network device, and so forth, depending on the applied terminology and technology. In some example embodiments, radio access network (RAN) split architecture comprises a Centralized Unit (CU) and a Distributed Unit (DU) at an IAB donor node. An IAB node comprises a Mobile Terminal (IAB-MT) part that behaves like a UE toward the parent node, and a DU part of an IAB node behaves like a base station toward the next-hop IAB node.

[0044] The term “terminal device” refers to any end device that may be capable of wireless communication. By way of example rather than limitation, a terminal device may also be referred to as a communication device, user equipment (UE), a Subscriber Station (SS), a Portable Subscriber Station, a Mobile Station (MS), or an Access Terminal (AT). The terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA), portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE), laptop-mounted equipment (LME), USB dongles, smart devices, wireless customer-premises equipment (CPE), an Internet of Things (loT) device, a watch or other wearable, a head-mounted display (HMD), a vehicle, a drone, a medical device and applications (e.g., remote surgery), an industrial device and applications (e.g., a robot and / or other wireless devices operating in an industrial and / or an automated processing chain contexts), a consumer electronics device, a device operating on commercial and / or industrial wireless networks, and the like. The terminal device may also correspond to a Mobile Termination (MT) part of an IAB node (e.g., a relay node). In the following description, the terms “terminal device”, “communication device”, “terminal”, “user equipment” and “UE” may be used interchangeably.

[0045] As used herein, the term “resource,” “transmission resource,” “resource block,” “physical resource block” (PRB), “uplink resource,” or “downlink resource” may refer to any resource for performing a communication, for example, a communication between a terminal device and a network device, such as a resource in time domain, a resource in frequency domain, a resource in space domain, a resource in code domain, or any other resource enabling a communication, and the like. In the following, unless explicitly stated, a resource in both frequency domain and time domain will be used as an example of a transmission resource for describing some example embodiments of the present disclosure. It is noted that example embodiments of the present disclosure are equally applicable to other resources in other domains.

[0046] The term “scheduling request (SR)” used herein may refer to a mechanism by which the UE can request the gNB for uplink resources to transmit data. The term “beam switching” used herein may refer to a procedure where a device is switching from one beam to another, which can also be called intra-cell mobility or beam-level mobility. Beam switching is based on a trigger condition for a beam and the configured beam switching algorithm. The term “information element (IE)” used herein may refer to a fundamental component of many communication protocols, used to convey various types of information. The term “beam” used herein

[0047] The term “transmission configuration indicator (TCI)” used herein may refer to a parameter used in telecommunications systems to indicate the configuration and characteristics of a transmission link or channel. It provides information about the transmission medium, allowing the receiving equipment to properly interpret and process the transmitted data. One TCI may correspond to one beam. The term “beamforming” used herein may refer to a particular processing technique for signals that allow for directional transmission or reception. Beamforming is a technique to improve the signal-to-noise ratio, eliminate undesirable interference sources, and focus transmitted signals to specific locations.

[0048] FIG. 1 illustrates an example communication environment 100 in which example embodiments of the present disclosure can be implemented. In the communication environment 100, a plurality of communication devices, including a terminal device 110 and a network device 120, can communicate with each other. In the example of FIG. 1, the terminal device 110 may be a UE and the network device 120 may be a base station serving the UE. The serving area of the network device 120 may be called a cell 102.

[0049] It is to be understood that the number of devices and their connections shown in FIG. 1 are only for the purpose of illustration without suggesting any limitation. The communication environment 100 may include any suitable number of devices configured to implementing example embodiments of the present disclosure. Although not shown, it would be appreciated that one or more additional devices may be located in the cell 102, and one or more additional cells may be deployed in the communication environment 100. It is noted that although illustrated as a network device, the network device 120 may be another device than a network device. Although illustrated as a terminal device, the terminal device 110 may be another device than a terminal device.

[0050] In the following, for the purpose of illustration, some example embodiments are described with the terminal device 110 operating as a UE and the network device 120 operating as a base station. However, in some example embodiments, operations described in connection with a terminal device may be implemented at a network device or other device, and operations described in connection with a network device may be implemented at a terminal device or other device.

[0051] In some example embodiments, a link from the network device 120 to the terminal device 110 is referred to as a downlink (DL), while a link from the terminal device 110 to the network device 120 is referred to as an uplink (UL). In DL, the network device 120 is a transmitting (TX) device (or a transmitter) and the terminal device 110 is a receiving (RX) device (or a receiver). In UL, the terminal device 110 is a TX device (or a transmitter) and the network device 120 is a RX device (or a receiver).

[0052] Communications in the communication environment 100 may be implemented according to any proper communication protocol(s), comprising, but not limited to, cellular communication protocols of the first generation (1G), the second generation (2G), the third generation (3G), the fourth generation (4G), the fifth generation (5G), 5.5G, the sixth generation (6G), and the like, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and / or any other protocols currently known or to be developed in the future. Moreover, the communication may utilize any proper wireless communication technology, comprising but not limited to: Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Frequency Division Duplex (FDD), Time Division Duplex (TDD), Multiple-Input Multiple-Output (MIMO), Orthogonal Frequency Division Multiple (OFDM), Discrete Fourier Transform spread OFDM (DFT-s-OFDM) and / or any other technologies currently known or to be developed in the future.

[0053] In some solutions, the Beam management has been specified in 3 procedures controlled by network: Procedure#! (Pl), Procedure#2 (P2) and Procedure#3 (P3), as illustrated in FIG. 2. The following beam management procedures are supported within one or multiple transmission reception points (TRPs) of the serving cell: - Pl: is used to enable UE measurement on different TRP Tx beams to support selection of TRP Tx beams / UE Rx beam(s). • For beamforming at TRP, it typically includes an intra / inter-TRP Tx beam sweep from a set of different beams. For beamforming at UE, it typically includes a UE Rx beam sweep from a set of different beams. UE may scan its antennas / panels sequentially for each SS burst and average over e.g. 3 samples. - P2: is used to enable UE measurement on different TRP Tx beams to possibly change inter / intra-TRP Tx beam(s). • From a possibly smaller set of beams for beam refinement than in Pl. Note that P2 can be a special case of Pl. P2 may use narrower channel state information (CSI) beams compared to SSB beams. - P3: is used to enable UE measurement on the same TRP Tx beam to change UE Rx beam in the case UE uses beamforming (e.g. mmW arrays on UEs for FR2 operation). • P3 typically uses aperiodic CSI-RS with ‘repetition’ flag ‘on’ and UE Ll-RSRP / SINR reporting is disabled.

[0054] In some solutions, an “unified” TCI framework is introduced, meaning that transmission configuration indicator (TCI) states providing quasi co location (QCL) assumptions for the reception of DL signals and channels can be used also to provide spatial sources for the transmission of UL signals and channels to determine UL TX spatial filter. Furthermore, the unified TCI framework defines the concept of indicated TCI state. That means that one or multiple (in case of multi-TRP for instance) of the configured TCI states is / are indicated TCI state(s) at a time. The indicated TCI state can be joint DL and UL TCI state or separate DL and separate UL TCI states.

[0055] In some solutions, it introduces the unified TCI framework for s-TRP, with one indicated joint DL and UL at a time OR one indicated DL and one indicate UL TCI state at a time for the UE. In some other solutions, it extends the unified TCI framework for m-TRP, with two indicated joint TCI states at a time OR two indicated DL TCI states and two indicated UL TCI states at a time for the UE.

[0056] In some solutions, UE-initiated beam management (UEIBM) is introduced. The UE-initiated TCI-state / beam reporting / switch feature refers to the case where the UE may be configured with at least one event / condition, and then the UE may start TCI-state / beam reporting / switch if this at least one event / condition occurs or is satisfied. The event-triggered UE-initiated beam management (UEIBM) may be based on measurements. The UE may send two reports to gNB. The first one may be sent when the event is triggered. It is a lightweight message that leverages the scheduling request (SR) message in the physical uplink control channel (PL'CCH). This first report aims at triggering UL resource allocations for the transmission of the second report. However, the UE doesn’t know if UEIBM report 1 is correctly received at gNB before sending report 2. Further, the UE doesn’t know if UEIBM report 1 failed or was the ack of UEIBM report 1 not received at the UE. Furthermore, the problem also relates to UE power consumption minimization: UE is using granular measurements and filtering all the time or UE is starting measuring DL RS directly after sending UEIBM report 1. The same uncertainty also applies after sending report 2: UE is making a e.g. second set of DL RS measurements to be sent to network after sending report 2 or go back and transmit report 1 and start the process again.

[0057] In accordance with some example embodiments of the present disclosure, there is provided a solution for beam management reporting. Specifically, a terminal device receives response information of UEIBM report 1 from a network device and transmits UEIBM report 2 based on the response information to the network device. In this way, it can reduce the number of beam failures.

[0058] Example embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0059] Reference is made to FIG. 3A, which illustrates a signalling flow 300 of a first report of beam management in accordance with some embodiments of the present disclosure. For the purpose of discussion, the signalling flow 300 will be discussed with reference to FIG. 1, for example, by using the first apparatus 110 and the second apparatus 120. It is noted that the order of acts / steps shown in FIG. 3A is only an example not limitation.

[0060] The terminal device 110 may perform (3010) a measurement on reference signals. For example, the terminal device 110 may perform the measurement on the reference signals on a current beam and one or more candidate beams. In some example embodiments, the current beam may be a beam corresponding to the indicated TCI state.

[0061] In some example embodiments, the reference signals may include channel state information reference signals. Alternatively, or in addition, the reference signals may include sounding reference signals. In some other example embodiments, the reference signals may include synchronization signals (SS), for example, synchronization signal block or physical broadcast channel (PBCH) / SS blocks.

[0062] In some example embodiments, the terminal device 110 may perform periodic measurements on the reference signals. For example, as shown in FIG. 4A and FIG. 4B, the terminal device 110 may make (3010) the periodic LI measurements. In some example embodiments, the terminal device 110 may measure reference signal received power (RSRP) of the reference signals. Alternatively, the terminal device 110 may measure reference signal receiving quality (RSRQ) of the reference signals. In some other example embodiments, the terminal device 110 may measure signal to interference plus noise ratio (SINR) of the reference signals.

[0063] The terminal device 110 determines (3020) whether a beam management initiated by the terminal device 110 (i.e., UEIBM) is triggered based on a measurement result at the terminal device 110. In some example embodiments, a measurement result of the measurement may be obtained averaging a plurality of measurements within a time window. For example, as shown in IFG. 4A, an auto-regressive moving average (ARMA) filter may be enabled to average the plurality of measurements over a sliding window. In some other example embodiments, the terminal device 110 may obtain the measurement result directly from the plurality of measurements. For example, as shown in FIG. 4B, the plurality of measurements are directly used for UEIBM event triggering. In some other example embodiments, the ARMA filtering may be used on top of the measurements before using it for event triggering.

[0064] In some example embodiments, the terminal device 110 may determine whether the beam management is triggered by determining whether a triggering event for beam reporting is satisfied. Table 1 below shows examples of trigger events for UE-initiated / event-driven beam reporting. It is noted that the trigger events shown in Table 1 are only examples not limitations. Table 1 On UE-initiated / event-driven beam reporting, further study the following trigger events: - Event-1: Quality of the current beam is worse than a certain threshold. - Event-2: Quality of at least one new beam, such as Ll-RSRP, becomes a threshold value better than the current beam. - Event-3: Quality of a new beam is better than a certain threshold. - Event-4: Quality of the current beam is worse than a threshold 1, and quality of at least one new beam is better than a threshold 2. - Event-5: Absolute value of the difference between the quality of the current beam and the quality of at least one new beam is lower than a threshold. - Event-6: When the current beam is not in the best K>1 beams (out of configured beams for measurement and reporting). - Event-7a: Quality of at least one new beam, such as Ll-RSRP, becomes a threshold value better than the RS derived from the activated TCI state with the worst quality. - Event-7b: Quality of at least one new beam, such as Ll-RSRP, becomes a threshold value better than the RS derived from the activated TCI state with the best quality. - Event-8: Quality of M>1 new beams, such as Ll-RSRP, become a threshold value better than the current beam. - Event-9: Quality of at least one new beam, such as Ll-RSRP, becomes a threshold value better than the configured reference RS (can be SSB or CSLRS). 5

[0065] In some example embodiments, at least Ll-RSRP may be used as quality metrics used for Event-2. In some example embodiments, regarding RS measurement for the new beam for Event-2, one or more of the following may be down-selected: Option-3a (explicit manner): The RS(s) for new beam(s) are explicitly configured by RRC (e.g., reusing legacy configuration of RS measurement or in TCI-State) or MAC-CE; Option- 10 3b (implicit manner): The RS(s) for new beam(s) are implicitly derived from QCL RS(s) of activated TCI state(s); Option-3c (implicit manner): The RS(s) for new beam(s) are implicitly derived from QCL RS(s) of configured TCI state(s). For example, for above implicit manner(s), if there are two QCL RSs in a TCI state, the measurement RS is derived from RS with respect to QCL-TypeD, if applicable. In some other example 15 embodiments, regarding RS measurement for the current beam for Event-2, Option-2a may be supported: Option-2a (implicit manner): The RS for current beam is implicitly derived from a QCL RS of indicated TCI state; Option-2c (explicit manner): The RS for current beam is explicitly configured by radio resource control (RRC) or medium access control control element (MAC-CE).

[0066] In some example embodiments, if the measurement result of a candidate beam is higher than a threshold value, the terminal device 110 may determine that the beam management is triggered. That is, since the trigger event for the beam management (i.e., Event-2) is satisfied, the beam management procedure can be triggered. In some example embodiments, the threshold value may be configured by the network device 120, such as, RRC signalling.

[0067] In some example embodiments, after triggering of the event, the terminal device 110 may continue the periodic measurements and filtering. For example, as shown in FIG. 4A and FIG. 4B, the terminal device 110 may perform the periodic measurements, after the event (for example, Event-2) is triggered. In this way, it can save power at the terminal device.

[0068] The terminal device 110 transmits (3030) a first report for the beam management to the network device 120. In other words, the network device 120 receives (3030) the first report for the beam management from the terminal device 110. In some example embodiments, the first report for the beam management may indicate a resource request for a second report for the beam management. For example, for mode A, one or more bits in the first report may be used to request a resource for an uplink channel to carry the second report for the beam management. Alternatively, the first report for the beam management may indicate a presence of the second report for the beam management. For example, for mode B, one or more bits in the first report may be used to notify an uplink channel to carry the second report for the beam management. In some example embodiments, in this case, the second report for the beam management may be on a preconfigured resource. In some example embodiments, the first report for the beam management may include a plurality of triggering measurement payloads.

[0069] The first report for the beam management is transmitted in a scheduling request (SR). The MAC entity may be configured with zero or one or more SR configurations. For example, the SR configurations may be for one or more of: scheduling requests for different bandwidth part (BWPs), scheduling requests for different Logical channels, scheduling request for secondary cell (SCell) beam failure recovery, or scheduling request for listen before talk (LBT) failure recovery. In addition to the above-mentioned scheduling requests, the SR configuration may be used for scheduling request for UEIBM report.

[0070] In some example embodiments, the scheduling request may include an information element (IE) for enabling the first report for the beam management. For example, the IE to enable UEIBM report 1 may be added in a logical channel configuration IE. By way of example, as shown in FIG. 5A, the logical channel configuration for the logical channel 510 may include the IE for SR with UEIBM report 1. In addition, the logical channel configuration for the logical channel 510 may be mapped to the scheduling request ID 2 and then mapped to the PUCCH configuration with the scheduling request resource ID 1. In some example embodiments, as shown in FIG. 5B, the logical channel configuration may include a scheduling request identity and an IE of logical channel SR-UEIBM Trigger. In some example embodiments, the IE may be “logicalChannelSR-UEIBM Triggering-vl9.” Table 2 shows an example of logical channel configuration that includes the IE for enabling the first report for the beam management. It is noted that Table 2 is only an example not limitation. Some lEs are omitted in Table 2. Table 2 —ASN1 START —TAG-LOGICALCHANNELCONFIG-START LogicalChannelConfig ::= SEQUENCE { ul-SpecificParameters SEQUENCE priority INTEGER (1..16) [[ channel AccessPriority-r 16 -- Need R bitRateMultiplier-rl 6 OPTIONAL- Need R ]] INTEGER (1..4) OPTIONAL, ENUMERATED {x40, x70, xlOO, x200} [[ logicalChannelSR-UEIBM Triggering-vl9 ENUMERATED {enabled } OPTIONAL -- Need R ]] } -TAG-LOGICALCHANNELCONFIG-STOP - ASN1STOP

[0071] Alternatively, the scheduling request may include a scheduling request identity reserved for the first report for the beam management. For example, some of the SchedulingRequestIDs for UEIBM report 1 may be reserved out of 8 IDs. In some other example embodiments, the scheduling request may include a scheduling request identity dedicated to the first report for the beam management. For example, the scheduling request identity dedicated to the first report is in an extended range of scheduling request identities values, compared with the scheduling request identity reserved for the first report. That is to way, the scheduling request identities may be extended beyond 8 and the extended scheduling request identities may be used for UEIBM report. For example, 0..7 is used for legacy SR, and 8..15 could be used for UEIBM report 1. In some example embodiments, the IE may be “SchedulingRequestid-vl9.” Table 3 shows an example of logical channel configuration that includes the IE for enabling the first report for the beam management. It is noted that Table 3 is only an example not limitation. Table 3 —ASN1 START —TAG-SCHEDULINGREQUESTID-START SchedulingRequestid-vl9 ::= INTEGER (0..15) —TAG- SCHEDULINGREQUESTID -STOP - ASN1STOP

[0072] In some example embodiments, the terminal device 110 may start (3040) a timer based on the transmission of the first report. The duration of the timer may be any suitable value. Alternatively, the terminal device 110 may start (3040) a counter based on the transmission of the first report. The terminal device 110 may also initiate the granular measurements and filtering. In some example embodiments, the timer may be configured via RRC signaling. In some example embodiments, the IE “UEIBMTimetoTriggerTimer- vl9” may be included in the scheduling request configuration. Table 4 shows an example of RRC configuration that includes the IE for the timer. It is noted that Table 4 is only an example not limitation. Some IEs are omitted in Table 4. Table 4 -ASM START - TAG-SCHEDULINGREQUESTCONFIG-START SchedulingRequestConfig ::= SEQUENCE { SchedulingRequestToAddMod::= SEQUENCE { SchedulingRequestConfig-vl700 ::= SEQUENCE { } SchedulingRequestToAddMod-vl700 ::= SEQUENCE { UEIBMTimetoTriggerTimer-v 19::= ENUMERATED(ms I. .ms 128) -TAG- SCHEDULINGREQUESTCONFIG -STOP - ASN1STOP 5

[0073] The terminal device 110 monitors (3050) response information (referred to as “first response information”) of the first report for the beam management. In some example embodiments, if the timer is started, the terminal device 110 may monitor the first response information during running time of the timer. In this case, if there is no first response information of the first report for the beam management is received before an 10 expiration of the timer, the terminal device 110 may retransmit (3060) the first report for the beam management to the network device 110. If the first response information of the first report for the beam management is received before the expiration of the timer, the terminal device 110 may stop the timer. Alternatively, if the counter is started, the terminal device 110 may monitor the first response information during running time of 15 the counter. In this case, if there is no first response information of the first report for the beam management is received before an expiration of the counter, the terminal device 110 may retransmit (3060) the first report for the beam management to the network device 110. If the first response information of the first report for the beam management is received before the expiration of the counter, the terminal device 110 may stop the counter.

[0074] In some example embodiments, as mentioned above, the terminal device 110 may continue to periodic measurement, after the beam management event is triggered. In this case, if no first response information of the first report for the beam management is received before a subsequent measurement, the terminal device 110 may determine whether a condition for triggering the beam management is satisfied based on a measurement result of the periodic measurement. If the condition for triggering the beam management is satisfied, the terminal device 110 may retransmit (3060) the first report for the beam management to the network device 110.

[0075] In some example embodiments, the retransmitted first report for the beam management may include an indication for the retransmission of the first report for the beam management. For example, an optional bit indication may be used in the first report to indicate the repeated transmission of the first report.

[0076] In some other example embodiments, the retransmitted first report may be in a dedicated scheduling request assigned with a higher priority than other scheduling requests. For example, a new SR type for the first report may be defined, which is assigned a higher priority.

[0077] The network device 120 transmits (3070) the first response information of the first report for the beam management to the terminal device 110. In other words, the terminal device 110 receives the first response information of the first report for the beam management from the network device 120. In this way, the terminal device is aware of whether the first report is correctly received at the network device before sending the second report.

[0078] In some example embodiments, the first response information may include an acknowledgment of the first report. For example, the terminal device 110 may receive the acknowledge of the first report in a downlink control signaling. In other words, the network device 120 may transmit an explicit indication of the acknowledge in the downlink control signaling. In some example embodiments, the downlink control signaling may be downlink control information. Alternatively, the downlink control signaling may be MAC CE. In some example embodiments, after transmitting explicit indication, the network device 120 may then transmit (3080) an uplink grant for the second report for the beam management to the terminal device 110. The uplink grant may indicate a set of resources for transmitting the second report for the beam management. In some example embodiments, the uplink grant may be transmitted over DCI 0 0 or DCI 01. In some example embodiments, the terminal device 110 may receive (3080) the uplink grant before the expiration of the timer.

[0079] In some other example embodiments, the first response information may include a set of resources allocated to the second report for the beam management. For example, the terminal device 110 may receive (3070) an uplink grant indicating the set of resources allocated to the second report for the beam management from the network device 120. By way of example, the network device 120 may transmit (3070) the uplink grant over DCI 0 0 or DCI 01. In other words, the network device 120 may directly acknowledge the reception of the first report for the beam management by allocating resources. In this case, the terminal device 110 may regard the uplink grant as the acknowledgment of the first report for the beam management.

[0080] The terminal device 110 may transmit (3110) the second report for the beam management to the network device 120 using the set of resources. In other words, the network device 120 may receive (3110) the second report for the beam management from the terminal device 110.

[0081] Reference is made to FIG. 3B, which illustrates a signalling flow 310 of a second report of beam management in accordance with some embodiments of the present disclosure. For the purpose of discussion, the signalling flow 310 will be discussed with reference to FIG. 1, for example, by using the first apparatus 110 and the second apparatus 120. It is noted that the order of acts / steps shown in FIG. 3B is only an example not limitation.

[0082] The terminal device 110 transmits (3110) the second report for the beam management to the network device 120. In other words, the network device 120 receives (3110) the second report for the beam management from the terminal device 110. The second report may be transmitted in uplink control information. In some example embodiments, the uplink control information may be transmitted on physical uplink control channel (PUCCH). Alternatively, or in addition, the uplink control information may be transmitted on physical uplink shared channel (PUSCH).

[0083] In some example embodiments, the uplink control information may other information, such as channel state information (CSI) and / or feedback (i.e., acknowledgement / non- acknowledgement (ACK / NACK)). The second report for the beam management and the other information may be included in the uplink control information separately or multiplexed. For example, the uplink control information may only include the second report for the beam management. Alternatively, the uplink control information may include the second report for the beam management and ACK / NAKC. In some other example embodiments, the uplink control information may include the second report for the beam management and CSI. In some further embodiments, the uplink control information may include the second report for the beam management, ACK / NACK and CSI. In some example embodiments, a priority of the second report for the beam management is same as that of CSI. The UCI over PUSCH may be configured in the PUSCH-Config IE and enabled by UCI-OnPUSCH IE.

[0084] The second report for the beam management indicates one or more of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator (TCI) state corresponding to reference signals for measurement. In some example embodiments, the measurement result may be one of: RSRP, RSRQ, or SINR. In addition, the triggering event may be any one from the events shown in Table 1. For example, the second report for the beam management may include one or more of: an RSRP, an identity of the triggering event, or an identity of a target beam. In some example embodiments, if the RSRP of the target beam is greater than the threshold value, it means that Event-2 is triggered. In this case, the second report for the beam management may include the RSRP of the target beam, the identity of triggering event (i.e., Event-2) and the beam ID of the target beam (or the TCI state ID associated with the reference signals and the measurements).

[0085] The terminal device 110 monitors (3120) response information (referred to as “second response information” hereinafter) of the second report. In some example embodiments, if another timer is started after the transmission of the second report for the beam management, the terminal device 110 may monitor the second response information of the second report during running time of the other timer. In this case, it can reduce the number of beam failures.

[0086] In some example embodiments, the terminal device 110 may determine (3130) whether there is second response information of the second report for the beam management. For example, if the other timer is started, the terminal device 110 may determine whether the response information is received before the expiration of the other timer.

[0087] In some example embodiments, if there is no second response information of the second report for the beam management (for example, before the expiration of the other timer), the terminal device 110 may retransmit (3140) the second report for the beam management to the network device 120. For example, if there is an uplink grant for retransmission with a pre-configured radio network temporary identity or indicated with a corresponding hybrid automatic repeat request (HARQ) identity, the terminal device 110 may retransmit (3140) the second report for the beam management. For example, the second report for the beam management may be retransmitted, if there is DCI grant for retransmission with pre-configured RNTI or indicated with the corresponding HARQ ID. The HARQ ID can be either pre-configured or already used for the first report transmission). In some other example embodiments, if there is a pre-configured resource for the second report for the beam management, the terminal device 110 may retransmit (3140) the second report for the beam management, for example, on the pre-configured resource. Alternatively, if there is a a dynamic resource allocated to the second report for the beam management, the terminal device 110 may retransmit (3140) the second report for the beam management, for example, on the dynamic resource.

[0088] In some example embodiments, if there is no second response information of the second report for the beam management and there is no pre-configured / dynamic resource allocated to the second report for the beam management, the terminal device 110 may retransmit (3150) the first report for the beam management to the network device 120. In some example embodiments, after the retransmission (3150) of the first report, the terminal device 110 may start monitoring the first response information of the retransmitted first report for the beam management. Embodiments described with reference to FIG. 3A can be implemented. By way of example, it can go back to the signaling flow 300 shown in FIG. 3A. For example, the terminal device 110 may start (3040) the timer for monitoring first response information of the first report for the beam management. Details are omitted here to avoid redundancy.

[0089] The network device 120 transmits (3160) the second response information of the second report to the terminal device 110. In other words, the terminal device 110 receives the second response information of the second report for the beam management from the network device 120.

[0090] In some example embodiments, the second response information may include an acknowledgment of the second report. For example, the terminal device 110 may receive the acknowledge of the second report in a downlink control signaling. In other words, the network device 120 may transmit an explicit indication of the acknowledge in the downlink control signaling. In some example embodiments, the downlink control signaling may be downlink control information. Alternatively, the downlink control signaling may be MAC CE. In some example embodiments, after transmitting the explicit indication, the network device 120 may then transmit (3170) a beam switch command or an active bam update command to the terminal device 110. In some example embodiments, the beam switch command or active bam update command may include an identity of the target beam. Alternatively, after transmitting the explicit indication, the network device 120 may then transmit (3170) a TCI state switch command or an activated TCI state update command to the terminal device 110.

[0091] In some other example embodiments, the second response information may include a message that is a beam switch command or an active beam update command. For example, the terminal device 110 may receive (3160) a message that is the beam switch command or the active beam update command. Alternatively, the second response information may include a message that is a TCI state switch command or an activated TCI state update command. In this case, the terminal device 110 may regard the beam switch command / TCI state switch command as the ACK of the second report.

[0092] In some example embodiments, the terminal device 110 may exist (3180) from the triggered event and the measurement. For example, as shown in FIG. 4B, after receiving (3160) the ACK, the terminal device 110 may exist (3180) the event. In some other example embodiments, the terminal device 110 may rest the other timer.

[0093] The terminal device 110 may perform (3190) a beam switch based on the second response information. For example, the terminal device 110 may switch to the beam indicated in the second response information. In some example embodiments, the beam may be indicated by a beam ID in the second response information. Alternatively, the beam may be indicated by a TCI state in the second response information. In some example embodiments, the second report for the beam management may include a plurality of triggering measurement payloads. Ion this case, the terminal device 110 may switch a plurality of candidate beams depending on the triggering event.

[0094] It is noted that the signaling flow 300 and the signaling flow 310 can be implemented in any suitable manner. For example, the signaling flow 300 and the signaling flow 310 can be implemented in combination or separately. In some other examples, one or more acts in the signaling flow 300 can be implemented with one or more acts in the signaling flow 310.

[0095] FIG. 6 shows a flowchart of an example method 600 implemented at a first apparatus in accordance with some example embodiments of the present disclosure. For example, the method 600 can be implemented at the terminal device 110 in FIG. 1.

[0096] At block 610, the first apparatus determines whether a beam management initiated by the first apparatus is triggered based on a measurement result at the first apparatus.

[0097] At block 620, based on a determination that the beam management is triggered, the first apparatus determines transmits to the second apparatus, the first report for the beam management in a scheduling request that indicates a resource request for a second report for the beam management or indicates a presence of the second report for the beam management.

[0098] At block 630, the first apparatus determines monitors response information of the first report for the beam management, the response information comprising an acknowledge of the first report or a set of resources allocated to the second report for the beam management.

[0099] In some example embodiments, the scheduling request comprises an information element for enabling the first report for the beam management.

[00100] In some example embodiments, the scheduling request comprises a scheduling request identity reserved for the first report for the beam management, or wherein the scheduling request comprises a scheduling request identity dedicated to the first report for the beam management.

[00101] In some example embodiments, the scheduling request identity dedicated to the first report is in an extended range of scheduling request identities values, compared with the scheduling request identity reserved for the first report.

[00102] In some example embodiments, the method 600 further comprises: receiving, from the second apparatus, the acknowledge of the first report in a downlink control signaling; and receiving, from the second apparatus, an uplink grant for the second report for the beam management.

[00103] In some example embodiments, the method 600 further comprises: receiving, from the second apparatus, an uplink grant indicating the set of resources allocated to the second report for the beam management.

[00104] In some example embodiments, the method 600 further comprises: continuing to perform a periodic measurement, after the beam management event is triggered; based on a determination that no response information of the first report for the beam management is received before a subsequent measurement, determining whether a condition for triggering the beam management is satisfied based on a measurement result of the periodic measurement; and based on a determination that the condition for triggering the beam management is satisfied, retransmitting the first report for the beam management to the second apparatus.

[00105] In some example embodiments, the method 600 further comprises: starting a timer or counter based on the transmission of the first report for the beam management; and based on a determination that no response information of the first report for the beam management is received before an expiration of the timer or counter, retransmitting the first report for the beam management to the second apparatus.

[00106] In some example embodiments, the retransmitted first report comprises an indication for the retransmission of the first report.

[00107] In some example embodiments, the retransmitted first report is in a dedicated scheduling request assigned with a higher priority than other scheduling requests.

[00108] In some example embodiments, the method 600 further comprises: obtaining the measurement result by averaging a plurality of measurements within a time window; or obtaining the measurement result directly from the plurality of measurements.

[00109] In some example embodiments, the method 600 further comprises: transmitting, to the second apparatus, the second report for the beam management using the set of resources.

[00110] In some example embodiments, the first report for the beam management comprises a plurality of triggering measurement payloads.

[00111] In some example embodiments, the first apparatus is a terminal device and the second apparatus is a network device.

[00112] FIG. 7 shows a flowchart of an example method 700 implemented at a second apparatus in accordance with some example embodiments of the present disclosure. For example, the method 700 can be implemented at the network device 120 in FIG. 1.

[00113] At block 710, the second apparatus receives, from a first apparatus, a first report for a beam management in a scheduling request that indicates a resource request for a second report for the beam management or indicates a presence of the second report for the beam management. The beam management initiated by the first apparatus is triggered based on a measurement result at the first apparatus.

[00114] At block 720, the second apparatus transmits, to the first apparatus, response information of the first report for the beam management, the response information comprising an acknowledge of the first report or a set of resources allocated to the second report for the beam management.

[00115] In some example embodiments, the scheduling request comprises an information element for enabling the first report for the beam management.

[00116] In some example embodiments, the scheduling request comprises a scheduling request identity reserved for the first report for the beam management, or wherein the scheduling request comprises a scheduling request identity dedicated to the first report for the beam management.

[00117] In some example embodiments, the scheduling request identity dedicated to the first report is in an extended range of scheduling request identities values, compared with the scheduling request identity reserved for the first report.

[00118] In some example embodiments, the method 700 further comprises: transmitting, to the first apparatus, the acknowledge of the first report in a downlink control signaling.

[00119] In some example embodiments, the method 700 further comprises: transmitting, to the first apparatus, an uplink grant indicating the set of resources allocated to the second report for the beam management.

[00120] In some example embodiments, the method 700 further comprises: receiving, from the first apparatus, a retransmitted first report for the beam management.

[00121] In some example embodiments, the retransmitted first report comprises an indication for the retransmission of the first report.

[00122] In some example embodiments, the retransmitted first report is in a dedicated scheduling request assigned with a higher priority than other scheduling requests.

[00123] In some example embodiments, the method 700 further comprises: receiving, from the first apparatus, the second report for the beam management that is transmitted using the set of resources.

[00124] In some example embodiments, the first report for the beam management comprises a plurality of triggering measurement payloads.

[00125] In some example embodiments, the first apparatus is a terminal device and the second apparatus is a network device.

[00126] FIG. 8 shows a flowchart of an example method 800 implemented at a first apparatus in accordance with some example embodiments of the present disclosure. For example, the method 800 may be implemented at the terminal device 110 in FIG. 1.

[00127] At block 810, after a transmission of a first report for beam management that is initiated by the first apparatus, the first apparatus transmits, to a second apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement.

[00128] At block 820, the first apparatus monitors response information for the second report for the beam management.

[00129] In some example embodiments, the method 800 includes: receiving, from the second apparatus, an acknowledge of the second report.

[00130] In some example embodiments, the method 800 includes: receiving, from the second apparatus, a message that is a beam switch command or an active beam update command.

[00131] In some example embodiments, the method 800 includes: based on a determination that there is no response information for the second report for the beam management, retransmitting the second report, in response to that there is an uplink grant for retransmission with a pre-configured radio network temporary identity or indicated with a corresponding hybrid automatic repeat request (HARQ) identity.

[00132] In some example embodiments, the method 800 includes: based on a determination that there is no response information for the second report for the beam management, retransmitting the second report, in response to that there is a preconfigured resource for the second report for the beam management.

[00133] In some example embodiments, the method 800 includes: based on a determination that there is no response information for the second report for the beam management, retransmitting the second report, in response to that there is a dynamic resource allocated to the second report for the beam management.

[00134] In some example embodiments, the method 800 includes: based on a determination that there is no response information for the second report for the beam management, retransmitting the first report to request resources for the second report, in response to that there is no pre-configured resource for the second report for the beam management.

[00135] In some example embodiments, the second report for the beam management is transmitted in uplink control information on at least one of: a physical uplink control channel or a physical uplink shared channel.

[00136] In some example embodiments, the uplink control information comprises at least one of: channel state information or a feedback for data transmission.

[00137] In some example embodiments, a priority of the second report for the beam management is same as that of channel state information.

[00138] In some example embodiments, the second report for the beam management comprises a plurality of triggering measurement payloads, and the method 800 includes: switching to a plurality of candidate beams depending on the triggering event.

[00139] In some example embodiments, the method 800 includes: existing from the triggering event and the measurement; and performing a beam switch based on the response information.

[00140] In some example embodiments, the second report for the beam management comprises at least one of: a reference signal received power, an identity of the triggering event, or an identity of a target beam.

[00141] In some example embodiments, a transmission configuration indicator corresponds to a beam.

[00142] In some example embodiments, the first apparatus is a terminal device and the second apparatus is a network device.

[00143] FIG. 9 shows a flowchart of an example method 900 implemented at a second apparatus in accordance with some example embodiments of the present disclosure. For example, the method 900 may be implemented at the network device 120 in FIG. 1.

[00144] At block 910, after a reception of a first report for beam management that is initiated by a first apparatus, the second apparatus receives, from a first apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement.

[00145] At block 920, the second apparatus transmits, to the second apparatus, response information for the second report for the beam management.

[00146] In some example embodiments, the method 900 includes: transmitting, to the first apparatus, an acknowledge of the second report.

[00147] In some example embodiments, the method 900 includes: transmitting, to the first apparatus, a message that is a beam switch command or an active beam update command.

[00148] In some example embodiments, the method 900 includes: receiving, from the first apparatus, a retransmitted the second report that is transmitted using a resource in an uplink grant for retransmission.

[00149] In some example embodiments, the method 900 includes: receiving, from the first apparatus, a retransmitted the second report that is transmitted using a pre-configured resource for the second report for the beam management.

[00150] In some example embodiments, the method 900 includes: receiving, from the first apparatus, a retransmitted the second report that is transmitted using a dynamic resource allocated to the second report for the beam management.

[00151] In some example embodiments, the method 900 includes: receiving, from the first apparatus, a retransmitted the first report to request resources for the second report.

[00152] In some example embodiments, the second report for the beam management is received in uplink control information on at least one of: a physical uplink control channel or a physical uplink shared channel.

[00153] In some example embodiments, the uplink control information comprises at least one of: channel state information or a feedback for data transmission.

[00154] In some example embodiments, a priority of the second report for the beam management is same as that of channel state information.

[00155] In some example embodiments, the second report for the beam management comprises a plurality of triggering measurement payloads.

[00156] In some example embodiments, the second report for the beam management comprises at least one of: a reference signal received power, an identity of the triggering event, or an identity of a target beam.

[00157] In some example embodiments, a transmission configuration indicator corresponds to a beam.

[00158] In some example embodiments, the first apparatus is a terminal device and the second apparatus is a network device.

[00159] In some example embodiments, a first apparatus capable of performing any of the method 600 (for example, the terminal device 110 in FIG. 1) may comprise means for performing the respective operations of the method 600. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module. The first apparatus may be implemented as or included in the terminal device 110 in FIG. 1.

[00160] In some example embodiments, the first apparatus comprises means for determining whether a beam management initiated by the first apparatus is triggered based on a measurement result at the first apparatus; means for based on a determination that the beam management is triggered, transmitting to the second apparatus, the first report for the beam management in a scheduling request that indicates a resource request for a second report for the beam management or indicates a presence of the second report for the beam management; and means for monitoring response information of the first report for the beam management, the response information comprising an acknowledge of the first report or a set of resources allocated to the second report for the beam management.

[00161] In some example embodiments, the scheduling request comprises an information element for enabling the first report for the beam management.

[00162] In some example embodiments, the scheduling request comprises a scheduling request identity reserved for the first report for the beam management, or wherein the scheduling request comprises a scheduling request identity dedicated to the first report for the beam management.

[00163] In some example embodiments, the scheduling request identity dedicated to the first report is in an extended range of scheduling request identities values, compared with the scheduling request identity reserved for the first report.

[00164] In some example embodiments, the first apparatus further comprises: means for receiving, from the second apparatus, the acknowledge of the first report in a downlink control signaling; and means for receiving, from the second apparatus, an uplink grant for the second report for the beam management.

[00165] In some example embodiments, the first apparatus further comprises: means for receiving, from the second apparatus, an uplink grant indicating the set of resources allocated to the second report for the beam management.

[00166] In some example embodiments, the first apparatus further comprises: means for continuing to perform a periodic measurement, after the beam management event is triggered; means for based on a determination that no response information of the first report for the beam management is received before a subsequent measurement, determining whether a condition for triggering the beam management is satisfied based on a measurement result of the periodic measurement; and means for based on a determination that the condition for triggering the beam management is satisfied, retransmitting the first report for the beam management to the second apparatus.

[00167] In some example embodiments, the first apparatus further comprises: means for starting a timer or counter based on the transmission of the first report for the beam management; and means for based on a determination that no response information of the first report for the beam management is received before an expiration of the timer or counter, retransmitting the first report for the beam management to the second apparatus.

[00168] In some example embodiments, the retransmitted first report comprises an indication for the retransmission of the first report.

[00169] In some example embodiments, the retransmitted first report is in a dedicated scheduling request assigned with a higher priority than other scheduling requests.

[00170] In some example embodiments, the first apparatus further comprises: means for obtaining the measurement result by averaging a plurality of measurements within a time window; or means for obtaining the measurement result directly from the plurality of measurements.

[00171] In some example embodiments, the first apparatus further comprises: means for transmitting, to the second apparatus, the second report for the beam management using the set of resources.

[00172] In some example embodiments, the first report for the beam management comprises a plurality of triggering measurement payloads.

[00173] In some example embodiments, the first apparatus is a terminal device and the second apparatus is a network device.

[00174] In some example embodiments, a second apparatus capable of performing any of the method 700 (for example, the network device 120 in FIG. 1) may comprise means for performing the respective operations of the method 700. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module. The second apparatus may be implemented as or included in the network device 120 in FIG. 1.

[00175] In some example embodiments, the second apparatus comprises means for receiving, from a first apparatus, a first report for a beam management in a scheduling request that indicates a resource request for a second report for the beam management or indicates a presence of the second report for the beam management, wherein the beam management initiated by the first apparatus is triggered based on a measurement result at the first apparatus; and means for transmitting, to the first apparatus, response information of the first report for the beam management, the response information comprising an acknowledge of the first report or a set of resources allocated to the second report for the beam management.

[00176] In some example embodiments, the scheduling request comprises an information element for enabling the first report for the beam management.

[00177] In some example embodiments, the scheduling request comprises a scheduling request identity reserved for the first report for the beam management, or wherein the scheduling request comprises a scheduling request identity dedicated to the first report for the beam management.

[00178] In some example embodiments, the scheduling request identity dedicated to the first report is in an extended range of scheduling request identities values, compared with the scheduling request identity reserved for the first report.

[00179] In some example embodiments, the second apparatus further comprises: means for transmitting, to the first apparatus, the acknowledge of the first report in a downlink control signaling.

[00180] In some example embodiments, the second apparatus further comprises: means for transmitting, to the first apparatus, an uplink grant indicating the set of resources allocated to the second report for the beam management.

[00181] In some example embodiments, the second apparatus further comprises: means for receiving, from the first apparatus, a retransmitted first report for the beam management.

[00182] In some example embodiments, the retransmitted first report comprises an indication for the retransmission of the first report.

[00183] In some example embodiments, the retransmitted first report is in a dedicated scheduling request assigned with a higher priority than other scheduling requests.

[00184] In some example embodiments, the second apparatus further comprises: means for receiving, from the first apparatus, the second report for the beam management that is transmitted using the set of resources.

[00185] In some example embodiments, the first report for the beam management comprises a plurality of triggering measurement payloads.

[00186] In some example embodiments, the first apparatus is a terminal device and the second apparatus is a network device.

[00187] In some example embodiments, a first apparatus capable of performing any of the method 800 (for example, the terminal device 110 in FIG. 1) may comprise means for performing the respective operations of the method 800. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module. The first apparatus may be implemented as or included in the terminal device 110 in FIG. 1.

[00188] In some example embodiments, the first apparatus comprises means for after a transmission of a first report for beam management that is initiated by the first apparatus, transmitting, to a second apparatus, a second report for the beam management indicating at least one of a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement; and means for monitoring response information for the second report for the beam management.

[00189] In some example embodiments, the first apparatus comprises means for receiving, from the second apparatus, an acknowledge of the second report.

[00190] In some example embodiments, the first apparatus comprises means for receiving, from the second apparatus, a message that is a beam switch command or an active beam update command.

[00191] In some example embodiments, the first apparatus comprises based on a determination that there is no response information for the second report for the beam management, means for retransmitting the second report, in response to that there is an uplink grant for retransmission with a pre-configured radio network temporary identity or indicated with a corresponding hybrid automatic repeat request (HARQ) identity.

[00192] In some example embodiments, the first apparatus comprises based on a determination that there is no response information for the second report for the beam management, means for retransmitting the second report, in response to that there is a pre-configured resource for the second report for the beam management.

[00193] In some example embodiments, the first apparatus comprises based on a determination that there is no response information for the second report for the beam management, means for retransmitting the second report, in response to that there is a dynamic resource allocated to the second report for the beam management.

[00194] In some example embodiments, the first apparatus comprises based on a determination that there is no response information for the second report for the beam management, means for retransmitting the first report to request resources for the second report, in response to that there is no pre-configured resource for the second report for the beam management.

[00195] In some example embodiments, the second report for the beam management is transmitted in uplink control information on at least one of: a physical uplink control channel or a physical uplink shared channel.

[00196] In some example embodiments, the uplink control information comprises at least one of channel state information or a feedback for data transmission.

[00197] In some example embodiments, a priority of the second report for the beam management is same as that of channel state information.

[00198] In some example embodiments, the second report for the beam management comprises a plurality of triggering measurement payloads, and wherein the first apparatus is caused to: switch to a plurality of candidate beams depending on the triggering event.

[00199] In some example embodiments, the first apparatus is caused to: means for existing from the triggering event and the measurement; and means for performing a beam switch based on the response information.

[00200] In some example embodiments, the second report for the beam management comprises at least one of: a reference signal received power, an identity of the triggering event, or an identity of a target beam.

[00201] In some example embodiments, a transmission configuration indicator corresponds to a beam.

[00202] In some example embodiments, the first apparatus is a terminal device and the second apparatus is a network device.

[00203] In some example embodiments, a second apparatus capable of performing any of the method 900 (for example, the network device 120 in FIG. 1) may comprise means for performing the respective operations of the method 900. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module. The second apparatus may be implemented as or included in the network device 120 in FIG. 1.

[00204] In some example embodiments, the second apparatus comprises means for after a reception of a first report for beam management that is initiated by a first apparatus, receive, from a first apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement; and means for transmitting, to the second apparatus, response information for the second report for the beam management.

[00205] In some example embodiments, the second apparatus comprises means for transmitting, to the first apparatus, an acknowledge of the second report.

[00206] In some example embodiments, the second apparatus comprises means for transmitting, to the first apparatus, a message that is a beam switch command or an active beam update command.

[00207] In some example embodiments, the second apparatus comprises means for receiving, from the first apparatus, a retransmitted the second report that is transmitted using a resource in an uplink grant for retransmission.

[00208] In some example embodiments, the second apparatus comprises means for receiving, from the first apparatus, a retransmitted the second report that is transmitted using a pre-configured resource for the second report for the beam management.

[00209] In some example embodiments, the second apparatus comprises means for receiving, from the first apparatus, a retransmitted the second report that is transmitted using a dynamic resource allocated to the second report for the beam management.

[00210] In some example embodiments, the second apparatus comprises means for receiving, from the first apparatus, a retransmitted the first report to request resources for the second report.

[00211] In some example embodiments, the second report for the beam management is received in uplink control information on at least one of: a physical uplink control channel or a physical uplink shared channel.

[00212] In some example embodiments, the uplink control information comprises at least one of: channel state information or a feedback for data transmission.

[00213] In some example embodiments, a priority of the second report for the beam management is same as that of channel state information.

[00214] In some example embodiments, the second report for the beam management comprises a plurality of triggering measurement payloads.

[00215] In some example embodiments, the second report for the beam management comprises at least one of: a reference signal received power, an identity of the triggering event, or an identity of a target beam.

[00216] In some example embodiments, a transmission configuration indicator corresponds to a beam.

[00217] In some example embodiments, the first apparatus is a terminal device and the second apparatus is a network device.

[00218] FIG. 10 is a simplified block diagram of a device 1000 that is suitable for implementing example embodiments of the present disclosure. The device 1000 may be provided to implement a communication device, for example, the terminal device 110 or the network device 120 as shown in FIG. 1. As shown, the device 1000 includes one or more processors 1010, one or more memories 1020 coupled to the processor 1010, and one or more communication modules 1040 coupled to the processor 1010.

[00219] The communication module 1040 is for bidirectional communications. The communication module 1040 has one or more communication interfaces to facilitate communication with one or more other modules or devices. The communication interfaces may represent any interface that is necessary for communication with other network elements. In some example embodiments, the communication module 1040 may include at least one antenna.

[00220] The processor 1010 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples. The device 1000 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.

[00221] The memory 1020 may include one or more non-volatile memories and one or more volatile memories. Examples of the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 1024, an electrically programmable read only memory (EPROM), a flash memory, a hard disk, a compact disc (CD), a digital video disk (DVD), an optical disk, a laser disk, and other magnetic storage and / or optical storage. Examples of the volatile memories include, but are not limited to, a randomaccess memory (RAM) 1022 and other volatile memories that will not last in the powerdown duration.

[00222] A computer program 1030 includes computer executable instructions that are executed by the associated processor 1010. The instructions of the program 1030 may include instructions for performing operations / acts of some example embodiments of the present disclosure. The program 1030 may be stored in the memory, e.g., the ROM 1024. The processor 1010 may perform any suitable actions and processing by loading the program 1030 into the RAM 1022.

[00223] The example embodiments of the present disclosure may be implemented by means of the program 1030 so that the device 1000 may perform any process of the disclosure as discussed with reference to FIG. 2 to FIG. 9. The example embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.

[00224] In some example embodiments, the program 1030 may be tangibly contained in a computer readable medium which may be included in the device 1000 (such as in the memory 1020) or other storage devices that are accessible by the device 1000. The device 1000 may load the program 1030 from the computer readable medium to the RAM 1022 for execution. In some example embodiments, the computer readable medium may include any types of non-transitory storage medium, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like. The term “non-transitory,” as used herein, is a limitation of the medium itself (i.e., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., RAM vs. ROM).

[00225] FIG. 11 shows an example of the computer readable medium 1100 which may be in form of CD, DVD or other optical storage disk. The computer readable medium 1100 has the program 1030 stored thereon.

[00226] Generally, various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, and other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. Although various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.

[00227] Some example embodiments of the present disclosure also provide at least one computer program product tangibly stored on a computer readable medium, such as a non-transitory computer readable medium. The computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target physical or virtual processor, to carry out any of the methods as described above. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types. The functionality of the program modules may be combined or split between program modules as desired in various embodiments. Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.

[00228] Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. The program code may be provided to a processor or controller of a general-purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program code, when executed by the processor or controller, cause the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

[00229] In the context of the present disclosure, the computer program code or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above. Examples of the carrier include a signal, computer readable medium, and the like.

[00230] The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a randomaccess memory (RAM), a read-only memory (ROM), an erasable programmable readonly memory (EPROM or Flash memory), an optical fiber, a portable compact disc readonly memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[00231] Further, although operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, although several specific implementation details are contained in the above discussions, these should not be construed as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to particular embodiments. Unless explicitly stated, certain features that are described in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, unless explicitly stated, various features that are described in the context of a single embodiment may also be implemented in a plurality of embodiments separately or in any suitable sub-combination.

[00232] Although the present disclosure has been described in languages specific to structural features and / or methodological acts, it is to be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims or any of the below embodiments.

[00233] Embodiment 1: A method comprising: after a transmission of a first report for beam management that is initiated by the first apparatus, transmitting, at a first apparatus and to a second apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement; and monitoring response information for the second report for the beam management.

[00234] Embodiment 2: A method comprising: after a reception of a first report for beam management that is initiated by a first apparatus, receiving, at a second apparatus and from a first apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement; and transmitting, to the second apparatus, response information for the second report for the beam management.

[00235] Embodiment 3: A first apparatus comprising: means for after a transmission of a first report for beam management that is initiated by the first apparatus, transmitting, to 5 a second apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement; and means for monitoring response information for the second report for the beam management. 10

[00236] Embodiment 4: A second apparatus comprising: means for after a reception of a first report for beam management that is initiated by a first apparatus, receiving, from a first apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding 15 to reference signals for measurement; and means for transmitting, to the second apparatus, response information for the second report for the beam management.

[00237] Embodiment 5: A computer readable medium comprising instructions stored thereon for causing an apparatus at least to perform the method of embodiment 1 or 2.

Claims

1. A first apparatus comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus to:after a transmission of a first report for beam management that is initiated by the first apparatus, transmit, to a second apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement; andmonitor response information for the second report for the beam management.

2. The first apparatus of claim 1, wherein the first apparatus is caused to:receive, from the second apparatus, an acknowledge of the second report.

3. The first apparatus of claim 1, wherein the first apparatus is caused to:receive, from the second apparatus, a message that is a beam switch command or an active beam update command.

4. The first apparatus of claim 1, wherein the first apparatus is caused to:based on a determination that there is no response information for the second report for the beam management,retransmit the second report, in response to that there is an uplink grant for retransmission with a pre-configured radio network temporary identity or indicated with a corresponding hybrid automatic repeat request (HARQ) identity.

5. The first apparatus of claim 1, wherein the first apparatus is caused to:based on a determination that there is no response information for the second report for the beam management,retransmit the second report, in response to that there is a pre-configured resource for the second report for the beam management.

6. The first apparatus of claim 1, wherein the first apparatus is caused to:based on a determination that there is no response information for the second report for the beam management,retransmit the second report, in response to that there is a dynamic resource allocated to the second report for the beam management.

7. The first apparatus of claim 1, wherein the first apparatus is caused to:based on a determination that there is no response information for the second report for the beam management,retransmit the first report to request resources for the second report, in response to that there is no pre-configured resource for the second report for the beam management.

8. The first apparatus of claim 1, wherein the second report for the beam management is transmitted in uplink control information on at least one of: a physical uplink control channel or a physical uplink shared channel.

9. The first apparatus of claim 8, wherein the uplink control information comprises at least one of: channel state information or a feedback for data transmission.

10. The first apparatus of claim 1, wherein a priority of the second report for the beam management is same as that of channel state information.

11. The first apparatus of claim 1, wherein the second report for the beam management comprises a plurality of triggering measurement payloads, andwherein the first apparatus is caused to:switch to a plurality of candidate beams depending on the triggering event.

12. The first apparatus of claim 1, wherein the first apparatus is caused to:exist from the triggering event and the measurement; and perform a beam switch based on the response information.

13. The first apparatus of claim 1, wherein the second report for the beam management comprises at least one of:a reference signal received power,an identity of the triggering event, or an identity of a target beam.

14. The first apparatus of claim 1, wherein a transmission configuration indicator corresponds to a beam.

15. The first apparatus of claim 1, wherein the first apparatus is a terminal device and the second apparatus is a network device.

16. A second apparatus comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus to:after a reception of a first report for beam management that is initiated by a first apparatus, receive, from a first apparatus, a second report for the beam management indicating at least one of: a measurement result of a measurement used in the beam management, a triggering event for the beam management, or a transmission configuration indicator state corresponding to reference signals for measurement; andtransmit, to the second apparatus, response information for the second report for the beam management.

17. The second apparatus of claim 16, wherein the second apparatus is caused to: transmit, to the first apparatus, an acknowledge of the second report.

18. The second apparatus of claim 16, wherein the second apparatus is caused to:transmit, to the first apparatus, a message that is a beam switch command or an active beam update command.

19. The second apparatus of claim 16, wherein the second apparatus is caused to:receive, from the first apparatus, a retransmitted the second report that is transmitted using a resource in an uplink grant for retransmission.

20. The second apparatus of claim 16, wherein the second apparatus is caused to: receive, from the first apparatus, a retransmitted the second report that is transmitted using a pre-configured resource for the second report for the beam management.

21. The second apparatus of claim 16, wherein the second apparatus is caused to: receive, from the first apparatus, a retransmitted the second report that is transmitted using a dynamic resource allocated to the second report for the beam management.

22. The second apparatus of claim 16, wherein the second apparatus is caused to: receive, from the first apparatus, a retransmitted the first report to request resources for the second report.

23. The second apparatus of claim 16, wherein the second report for the beam management is received in uplink control information on at least one of: a physical uplink control channel or a physical uplink shared channel.

24. The second apparatus of claim 23, wherein the uplink control information comprises at least one of: channel state information or a feedback for data transmission.

25. The second apparatus of claim 16,wherein a priority of the second report for the beam management is same as that of channel state information; orwherein the second report for the beam management comprises a plurality of triggering measurement payloads; orwherein the second report for the beam management comprises at least one of:a reference signal received power,an identity of the triggering event, oran identity of a target beam.; orwherein a transmission configuration indicator corresponds to a beam.

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