Methods, apparatuses, and systems for multiple user equipment initiated (UEI) beam reports on an uplink channel

Abstract

Methods, apparatuses, and systems provide recovery for UEIBM. In the context of a method, the method includes receiving downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; determining that one or more conditions associated with a subset of the plurality of configurations are satisfied; and transmitting at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on the one or more conditions being satisfied.

Description

METHODS, APPARATUSES, AND SYSTEMS FOR MULTIPLE USER EQUIPMENT INITIATED (UEI) BEAM REPORTS ON AN UPLINK CHANNELRELATED APPLICATION

[0001] This application claims priority to GB Application No. 2504138.5 filed March 21, 2025, which is incorporated herein by reference in its entirety.TECHNOLOGICAL FIELD

[0002] The present disclosure relates generally to techniques for user equipment (UE) initiated beam management (UEIBM) and, more particularly, to techniques for multiple UE initiated (UEI) beam reports on an uplink channel.BACKGROUND

[0003] In some wireless communication systems, beam management is used for maintaining reliable communication within a network. A UE may be configured to support one or more beam management procedures to improve beam selection for communication with one or more network nodes. In accordance with a beam management procedure, the UE may perform measurements to assess a quality of one or more beams used for the communication with the one or more network nodes. The UE may report information pertaining to the quality of the beam(s) to a network node, which may use the reported information for beam selection.BRIEF SUMMARY

[0004] Methods, apparatuses, and systems are disclosed to provide for UEIBM. In this regard, the method, apparatus and system are configured to provide for multiple UEI beam reports on an uplink channel, which may improve resource utilization and increase a performance of UEIBM at the UE.

[0005] In at least one example embodiment, an apparatus is provided comprising at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: receive downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; determine that one or more conditions associated with a subset of the plurality of configurations are satisfied; and transmit at least two of the plurality of eventtriggered CSI reports via a second uplink channel based at least in part on the one or more conditions being satisfied.

[0006] In at least one example embodiment, the instructions, when executed by the at least one processor, cause the apparatus at least to: select the at least two event triggered CSI reports from among the plurality based at least in part on at least one priority associated with the plurality of configurations.

[0007] In at least one example embodiment, the instructions, when executed by the at least one processor, cause the apparatus at least to: receive second control signaling that indicates the at least one priority associated with the plurality of configurations.

[0008] In at least one example embodiment, the second control signaling indicates the at least one priority by indicating one of the following: an order by which to prioritize at least one configuration of the plurality of configurations, that at least one configuration of the plurality of configurations has the highest priority among the plurality of configurations, or that at least one configuration of the plurality of configurations has the lowest priority among the plurality of configurations.

[0009] In at least one example embodiment, the instructions, when executed by the at least one processor, cause the apparatus at least to: select the at least two event triggered CSI reports from among the plurality of event triggered CSI reports based at least in part on at least one triggering time associated with the plurality of configurations.

[0010] In at least one example embodiment, the subset of the plurality of configurations is associated with a subset of triggering times, and wherein the at least one triggering time comprises at least the first or the last triggering time among the subset of triggering times.

[0011] In at least one example embodiment, the instructions, when executed by the at least one processor, cause the apparatus at least to: select the at least two event triggered CSI reports from among the plurality of event triggered CSI reports based at least in part on at least one identifier associated with the plurality of configurations.

[0012] In at least one example embodiment, the subset of the plurality of configurations is associated with a subset of identifiers, and wherein the at least one identifier comprises at least the lowest or the highest identifier among the subset of identifiers.

[0013] In at least one example embodiment, the instructions, when executed by the at least one processor, cause the apparatus at least to: select the at least two event triggered CSI reports from among the plurality of event triggered CSI reports based at least in part on at least one payload size associated with the plurality of configurations.

[0014] In at least one example embodiment, the subset of the plurality of configurations is associated with a subset of payload sizes, and wherein the at least one payload size comprises at least the smallest or the largest payload size among the subset of payload sizes.

[0015] In at least one example embodiment, selection of the at least two event triggered CSI reports is based at least in part on a combined payload size associated with at least two configurations of the subset of the plurality of configurations.

[0016] In at least one example embodiment, the plurality of configurations is associated with one or more types of events.

[0017] In at least one example embodiment, the first uplink channel comprises a first physical uplink control channel (PUCCH) resource allocation, and the second uplink channel comprises a second PUCCH resource allocation or a physical uplink shared channel (PUSCH) allocation.

[0018] In at least one example embodiment, an apparatus is provided comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: transmit downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; and receive at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on one or more conditions associated with a subset of the plurality of configurations being satisfied.

[0019] In at least one example embodiment, an apparatus is provided comprising the at least two event triggered CSI reports are based at least in part on at least one priority associated with the plurality of configurations.

[0020] In at least one example embodiment, an apparatus is provided comprising the instructions, when executed by the at least one processor, cause the apparatus at least to: transmit second control signaling that indicates the at least one priority associated with the plurality of configurations.

[0021] In at least one example embodiment, an apparatus is provided comprising the second control signaling indicates the at least one priority by indicating one of the following: an order by which to prioritize at least one configuration of the plurality of configurations, that at least one configuration of the plurality of configurations has the highest priority among the plurality of configurations, or that at least one configuration of the plurality of configurations has the lowest priority among the plurality of configurations.

[0022] In at least one example embodiment, an apparatus is provided comprising the at least two event triggered CSI reports are based at least in part on at least one triggering time associated with the plurality of configurations.

[0023] In at least one example embodiment, an apparatus is provided comprising the subset of the plurality of configurations is associated with a subset of triggering times, and wherein the at least one triggering time comprises at least the first or the last triggering time among the subset of triggering times.

[0024] In at least one example embodiment, an apparatus is provided comprising the at least two event triggered CSI reports are based at least in part on at least one identifier associated with the plurality of configurations.

[0025] In at least one example embodiment, an apparatus is provided comprising the subset of the plurality of configurations is associated with a subset of identifiers, and wherein the at least one identifier comprises at least the lowest or the highest identifier among the subset of identifiers.

[0026] In at least one example embodiment, an apparatus is provided comprising the at least two event triggered CSI reports are based at least in part on at least one payload size associated with the plurality of configurations.

[0027] In at least one example embodiment, an apparatus is provided comprising the subset of the plurality of configurations is associated with a subset of payload sizes, and wherein the at least one payload size comprises at least the smallest or the largest payload size among the subset of payload sizes.

[0028] In at least one example embodiment, an apparatus is provided comprising at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: receive downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; determine that one or more conditions associated with a subset of the plurality of configurations are satisfied; and transmit, based at least in part on the one or more conditions being satisfied, a subset of the plurality of event triggered CSI reports via a second uplink channel having a size that is based at least in part on at least two payload sizes associated with the plurality of configurations.

[0029] In at least one example embodiment, the size of the second uplink channel is based at least in part on a summation of the at least two payload sizes.

[0030] In at least one example embodiment, the plurality of configurations is associated with a plurality of payload sizes including the at least two payload sizes, and wherein the size of the second uplink channel is based at least in part on a summation of the plurality of pay load sizes.

[0031] In at least one example embodiment, the plurality of configurations is associated with a plurality of payload sizes including the at least two payload sizes, and wherein the at least two payload sizes comprise at least the largest two payload sizes among the plurality of pay load sizes.

[0032] In at least one example embodiment, the instructions, when executed by the at least one processor, cause the apparatus at least to: receive an indication of a first quantity of payload sizes associated with the second uplink channel, wherein the at least two payload sizes comprise a second quantity of payload sizes that is based at least in part on the first quantity of payload sizes.

[0033] In at least one example embodiment, the at least two payload sizes include a predetermined quantity of payload sizes.

[0034] In at least one example embodiment, the instructions, when executed by the at least one processor, cause the apparatus at least to: determine the size of the second uplink channel based at least in part on the at least two payload sizes in accordance with a rule.

[0035] In at least one example embodiment, the rule specifies for the size of the second uplink channel to be determined based at least in part on at least one of the following: the summation of a plurality of payload sizes associated with the plurality of configurations, the summation of the two largest payload sizes among a plurality of payload sizes associated with the plurality of configurations, or the summation of X largest payload sizes among a plurality of payload sizes associated with the plurality of configurations, wherein X is an integer greater than 1.

[0036] In at least one example embodiment, the instructions, when executed by the at least one processor, cause the apparatus at least to: receive an indication of the rule for determining the size of the second uplink channel.

[0037] In at least one example embodiment, the instructions, when executed by the at least one processor, cause the apparatus at least to: receive downlink signaling that indicates the second uplink channel for transmission of event triggered CSI reports, wherein thedownlink signaling comprises downlink control information (DCI) or radio resource control (RRC) signaling.

[0038] In at least one example embodiment, the first uplink channel comprises a first physical uplink control channel (PUCCH) resource allocation, and the second uplink channel comprises a second PUCCH resource allocation or a physical uplink shared channel (PUSCH) allocation.

[0039] In at least one example embodiment, the plurality of configurations is associated with one or more types of events.

[0040] In at least one example embodiment, the subset of the plurality of event triggered CSI reports comprises one or more event triggered CSI reports.

[0041] In at least one example embodiment, an apparatus is provided comprising at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: transmit downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; and receive, based at least in part on one or more conditions associated with a subset of the plurality of configurations being satisfied, a subset of the plurality of event triggered CSI reports via a second uplink channel having a size that is based at least in part on at least two payload sizes associated with the plurality of configurations.

[0042] In at least one example embodiment, the size of the second uplink channel is based at least in part on a summation of the at least two payload sizes.

[0043] In at least one example embodiment, the plurality of configurations is associated with a plurality of payload sizes including the at least two payload sizes, and wherein the size of the second uplink channel is based at least in part on a summation of the plurality of pay load sizes.

[0044] In at least one example embodiment, the plurality of configurations is associated with a plurality of payload sizes including the at least two payload sizes, and wherein the at least two payload sizes comprise at least the largest two payload sizes among the plurality of pay load sizes.

[0045] In at least one example embodiment, the instructions, when executed by the at least one processor, cause the apparatus at least to: transmit an indication of a first quantity of payload sizes associated with the second uplink channel, wherein the at least two payload sizes comprise a second quantity of payload sizes that is based at least in part on the first quantity of payload sizes.

[0046] In at least one example embodiment, the at least two payload sizes include a predetermined quantity of payload sizes.

[0047] In at least one example embodiment, the size of the second uplink channel is based at least in part on a rule.

[0048] In at least one example embodiment, the rule specifies for the size of the second uplink channel to be based at least in part on at least one of the following: the summation of a plurality of payload sizes associated with the plurality of configurations, the summation of the two largest payload sizes among a plurality of payload sizes associated with the plurality of configurations, or the summation of X largest payload sizes among a plurality of payload sizes associated with the plurality of configurations, wherein X is an integer greater than 1.

[0049] In at least one example embodiment, the instructions, when executed by the at least one processor, cause the apparatus at least to: transmit an indication of the rule for determining the size of the second uplink channel.

[0050] In at least one example embodiment, the instructions, when executed by the at least one processor, cause the apparatus at least to: transmit downlink signaling that indicates the second uplink channel for transmission of event triggered CSI reports, wherein the downlink signaling comprises downlink control information (DCI) or radio resource control (RRC) signaling.

[0051] In at least one example embodiment, a method is provided comprising: receiving downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; determining that one or more conditions associated with a subset of the plurality of configurations are satisfied; and transmitting at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on the one or more conditions being satisfied.

[0052] In at least one example embodiment, a method is provided comprising: transmitting downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; and receiving at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on one or more conditions associated with a subset of the plurality of configurations being satisfied.

[0053] In at least one example embodiment, a method is provided comprising: receiving downlink control signaling that indicates a plurality of configurations for a plurality of eventtriggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; determining that one or more conditions associated with a subset of the plurality of configurations are satisfied; and transmitting, based at least in part on the one or more conditions being satisfied, a subset of the plurality of event triggered CSI reports via a second uplink channel having a size that is based at least in part on at least two payload sizes associated with the plurality of configurations.

[0054] In at least one example embodiment, a method is provided comprising: transmitting downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; and receiving, based at least in part on one or more conditions associated with a subset of the plurality of configurations being satisfied, a subset of the plurality of event triggered CSI reports via a second uplink channel having a size that is based at least in part on at least two payload sizes associated with the plurality of configurations.

[0055] In at least one example embodiment, a non-transitory computer readable storage medium is provided. The non-transitory computer readable storage medium comprises computer instructions that, when executed by an apparatus, cause the apparatus at least to: receive downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; determine that one or more conditions associated with a subset of the plurality of configurations are satisfied; and transmit at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on the one or more conditions being satisfied.

[0056] In at least one example embodiment, a non-transitory computer readable storage medium is provided. The non-transitory computer readable storage medium comprises computer instructions that, when executed by an apparatus, cause the apparatus at least to: transmit downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; and receive at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on one or more conditions associated with a subset of the plurality of configurations being satisfied.

[0057] In at least one example embodiment, a non-transitory computer readable storage medium is provided. The non-transitory computer readable storage medium comprisescomputer instructions that, when executed by an apparatus, cause the apparatus at least to: receive downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; determine that one or more conditions associated with a subset of the plurality of configurations are satisfied; and transmit, based at least in part on the one or more conditions being satisfied, a subset of the plurality of event triggered CSI reports via a second uplink channel having a size that is based at least in part on at least two payload sizes associated with the plurality of configurations.

[0058] In at least one example embodiment, a non-transitory computer readable storage medium is provided. The non-transitory computer readable storage medium comprises computer instructions that, when executed by an apparatus, cause the apparatus at least to: transmit downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; and receive, based at least in part on one or more conditions associated with a subset of the plurality of configurations being satisfied, a subset of the plurality of event triggered CSI reports via a second uplink channel having a size that is based at least in part on at least two payload sizes associated with the plurality of configurations.

[0059] In at least one example embodiment, an apparatus is provided that comprises means for: receiving downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; determining that one or more conditions associated with a subset of the plurality of configurations are satisfied; and transmitting at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on the one or more conditions being satisfied.

[0060] In at least one example embodiment, an apparatus is provided that comprises means for: transmitting downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; and receiving at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on one or more conditions associated with a subset of the plurality of configurations being satisfied.

[0061] In at least one example embodiment, an apparatus is provided that comprises means for: receiving downlink control signaling that indicates a plurality of configurationsfor a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; determining that one or more conditions associated with a subset of the plurality of configurations are satisfied; and transmitting, based at least in part on the one or more conditions being satisfied, a subset of the plurality of event triggered CSI reports via a second uplink channel having a size that is based at least in part on at least two payload sizes associated with the plurality of configurations.

[0062] In at least one example embodiment, an apparatus is provided that comprises means for: transmitting downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; and receiving, based at least in part on one or more conditions associated with a subset of the plurality of configurations being satisfied, a subset of the plurality of event triggered CSI reports via a second uplink channel having a size that is based at least in part on at least two payload sizes associated with the plurality of configurations.

[0063] The above summary is provided merely for purposes of summarizing some example embodiments to provide a basic understanding of some aspects of the disclosure. Accordingly, it will be appreciated that the above-described embodiments are merely examples and should not be construed to narrow the scope of the disclosure in any way. It will also be appreciated that the scope of the disclosure encompasses many potential embodiments in addition to those summarized here, some of which will be further described below.BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Having thus described certain example embodiments of the present disclosure in general terms, reference will hereinafter be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:

[0065] FIG. 1 illustrates an example diagram of a communication system to which one or more examples disclosed herein may be applied;

[0066] FIGs. 2 and 3 illustrate example timing diagrams to which one or more examples disclosed herein may be applied;

[0067] FIGs. 4 and 5 illustrate example diagrams of UEI beam reports to which one or more examples disclosed herein may be applied;

[0068] FIG. 6 illustrates an example of a signaling diagram to which one or more examples disclosed herein may be applied;

[0069] FIG. 7 illustrates an example block diagram of an apparatus to which one or more examples disclosed herein may be applied; and

[0070] FIGs. 8 and 9 illustrate example flowcharts of methods to which one or more examples disclosed herein may be applied.DETAILED DESCRIPTION

[0071] The following embodiments are exemplary. Although the specification may refer to “an”, “one”, or “some” embodiment(s) in several locations of the text, this does not necessarily mean that each reference is made to the same embodiment(s), or that a particular feature only applies to a single embodiment. Single features of different embodiments may also be combined to provide other embodiments. Further, when a particular feature, structure, or characteristic is described in connection of an embodiment, it is within the knowledge of one skilled in the art to apply such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described. 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.

[0072] For the purposes of the present disclosure, the phrases “at least one of A or B”, “at least one of A and B”, and “A and / or B” means (A), (B), or (A and B). For the purposes of the present disclosure, the phrase “A, B, and / or C” means (A), (B), (C), (A and B), (A and C), (B and C), or (A, B, and C).

[0073] Certain embodiments described may be implemented in a communication network, such as any of the following radio access technologies (RATs): wireless fidelity (Wi-Fi), BLUETOOTH, Worldwide Interoperability for Micro-wave Access (WiMAX), Global System for Mobile communications (GSM, 2G), GSM EDGE radio access Network (GERAN), General Packet Radio Service (GRPS), Universal Mobile Telecommunication System (UMTS, 3G) based on basic wideband-code division multiple access (W-CDMA), high-speed packet access (HSPA), Long Term Evolution (LTE), LTE-Advanced, and enhanced LTE (eLTE), 5G (also called NR), or any future radio access technology (RAT) such as 6G. Moreover, communication within the communication network may utilize any suitable wireless communication technology, including but not limited to: Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time DivisionMultiple Access (TDMA), Frequency Division Duplex (FDD), Time Division Duplex (TDD), MIMO, Orthogonal Frequency Division Multiplexing (OFDM), and / or Discrete Fourier Transform spread OFDM (DFT-s-OFDM).

[0074] As used herein, the term “network device” or “network node” refers to a node in a communication network via which user equipment may access the network and / or which is capable of controlling radio communication and managing radio resources within a cell. The network node or network device may be referred to as a base station (BS), an access point (AP), an access node, or a transmission reception point (TRP). The network device may be, depending on the applied technology, 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 head (RH), a remote radio head (RRH), a relay, an Integrated Access and Backhaul (IAB) node, a low power node, a non-terrestrial network (NTN) or non-ground network device such as a satellite network device, a low earth orbit (LEO) satellite and a geostationary orbit (GEO) satellite, or an aircraft network device.

[0075] Moreover, in connection of split radio access network (RAN), the network device may refer to a centralized unit (CU) of a base station and / or a distributed unit (DU) of a base station. An interface between CU and DU may be referred to as an Fl interface in NR. In the split RAN architecture, node operations may be carried out, at least partly, in the central / centralized unit, CU, (e.g., server, host or node) operationally coupled to the DU, (e.g., a radio head / node). One CU may control one or more DUs, acting at least as transmit / receive (Tx / Rx) nodes. In at least one embodiment, the DUs may include e.g., a radio link control (RLC), medium access control (MAC) layer and a physical (PHY) layer, whereas the CU may include the layers above RLC layer, such as a packet data convergence protocol (PDCP) layer, a radio resource control (RRC) layer and an internet protocol (IP) layer. The PHY layer may also be referred to as Layer 1 (LI). That is, LI may include the PHY layer. Additionally, Layer 2 (L2) may include the RLC layer and the MAC layer. Other functional splits are possible too. In practice, any processing task may be performed in either the CU or the DU and the boundary where the responsibility is shifted between the CU and the DU may depend on the applied implementation.

[0076] The term “core network entity,” and the like, refers to entities, nodes, or network functions used to support one or more functionalities of a core network, such as an evolved packet core (EPC). In some examples, a core network entity includes a mobility management entity (MME) and / or a gateway node. The MME may handle mobility of terminal devices in a tracking area encompassing a plurality of cells and handle signaling connections betweenthe terminal devices and the core network. The gateway node may handle data routing in the core network and to / from the terminal devices. The 5G specifications specify the core network as a 5G core (5GC). Additionally, or alternatively, a core network entity may include an access and mobility management function (AMF), a user plane function / gateway (UPF), and / or one or more other functions, such as a location management function (LMF). The AMF may handle termination of non-access stratum (NAS) signaling, NAS ciphering & integrity protection, registration management, connection management, mobility management, access authentication and authorization, security context management. The UPF node may support packet routing and forwarding, packet inspection and quality of service (QoS) handling, for example. The LMF supports the positioning architecture of the network. The LMF may determine the position of a mobile device (e.g., a UE) based on measurements and / or assistance information obtained at the LMF, for example, from a network entity (e.g., a RAN) serving the mobile device and / or the mobile device itself. In some examples, the LMF may obtain the measurements and / or assistance information via the AMF.

[0077] The term “terminal device,” refers to any end device that may be capable of wireless communication. By way of example, a terminal device may be referred to as a communication device, user equipment (UE), a Subscriber Station (SS), or a Mobile Station (MS). The terminal device may include 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, Universal Serial Bus (USB) dongles, 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.

[0078] The term “resource”, as used herein, may refer to one or more radio resources in time domain, in frequency domain, in space domain, and / or in code domain. Some examples of resources include e.g., a physical resource block (PRB), a radio frame, a subframe, a time slot, a subband, a frequency region, a sub-carrier, a beam, etc. The term “transmission” and / or “reception” may refer to wirelessly transmitting and / or receiving via a wireless propagation channel on one or more radio resources.

[0079] FIG. 1 illustrates an example diagram of a communication system 100 (e.g., a communication network) to which one or more examples disclosed herein may be applied. The communication system (also referred to herein as a cellular communication network or system) may include a network node 110 providing one or more cells, such as source cell 101, and a network node 112 providing one or more other cells, such as target cell 102. Each cell may be, e.g., a macro cell, a micro cell, femto, or a pico cell, for example. The cell may define a coverage area or a service area of the corresponding access node. The network nodes 110 and 112 may also be referred to herein as network entities.

[0080] The network node 110 may provide a UE 120 (one or more UEs) with wireless access to the communication network. The wireless access may include downlink (DL) communication from the network node to the UE 120 and uplink (UL) communication from the UE 120 to the network node. Examples of uplink channels include physical uplink control channel (PUCCH) for transmitting control information and physical uplink shared channel (PUSCH) for transmitting data towards the network. Examples of downlink channels include physical downlink control channel (PDCCH) for transmitting control information and physical downlink shared channel (PDSCH) for transmitting data towards the user equipment.

[0081] There may be a plurality of UEs 120, 122 in the system. Each of them may be served by the same or by different network nodes 110, 112. UE may be configured with dual connectivity (DC), wherein the UE, e.g., UE 120, may be connected to multiple network nodes 110, 112. The UEs 120, 122 may communicate with each other, in case device-to-device (D2D) communication interface is established between them via a so-called sidelink (SL). Such D2D communications may be referred to as machine-to-machine, peer-to-peer (P2P) communications, or vehicle-to-vehicle (V2V), for example.

[0082] In the case of multiple network nodes in the communication network, the network nodes may be connected to each other via an interface. LTE specifications call such an interface as X2 interface. An interface between an LTE node and a 5G node, or between two 5G nodes may be called Xn interface.

[0083] The network nodes 110 and 112 may be further connected via another interface to a core network 116 (also referred to herein as the core 116) of the communication network. The LTE specifications specify the core network as an evolved packet core (EPC), and the core network may include, for example, a mobility management entity (MME) and a gateway node. The MME may handle mobility of terminal devices in a tracking area encompassing a plurality of cells and handle signaling connections between the terminal devices and the corenetwork. The gateway node may handle data routing in the core network and to / from the terminal devices. The 5G specifications specify the core network as a 5G core (5GC). The 5G core may include, for example, an access and mobility management function (AMF) and a user plane function / gateway (UPF) and other functions. The AMF may handle termination of non-access stratum (NAS) signaling, NAS ciphering & integrity protection, registration management, connection management, mobility management, access authentication and authorization, security context management. The UPF node may support packet routing and forwarding, packet inspection and quality of service (QoS) handling, for example.

[0084] In 5G New Radio, different kinds of data transfer services are offered by the medium access control (MAC) layer. To accommodate different kinds of data transfer services, multiple types of logical channels are defined. A MAC protocol data unit (MAC PDU) may consist of one or more MAC control elements (MAC CEs) corresponding to one or more features requiring the MAC CEs. According to the third generation partnership project (3GPP) technical specification (TS) 38.321, the MAC PDU includes a subheader with a logical channel identification (LCID) value or an extended LCID (eLCID) value. In some examples, the UEs 120, 122 may be configured to transmit information pertaining to a beam management procedure to the network nodes 110, 112 via one or more MAC CEs.

[0085] A MAC PDU is a bit string that is byte aligned (e.g., multiple of 8 bits) in length. The bit strings are represented by tables in which the most significant bit is the leftmost bit of the first line of the table, the least significant bit is the rightmost bit on the last line of the table, and more generally the bit string is to be read from left to right and then in the reading order of the lines. The bit order of each parameter field within a MAC PDU is represented with the first and most significant bit in the leftmost bit and the last and least significant bit in the rightmost bit.

[0086] A MAC SDU is a bit string that is byte aligned (e.g., multiple of 8 bits) in length. A MAC SDU is included into a MAC PDU from the first bit onward. A MAC CE is a bit string that is byte aligned (e.g., multiple of 8 bits) in length. A MAC subheader is a bit string that is byte aligned (e.g., multiple of 8 bits) in length. Each MAC subheader is placed immediately in front of the corresponding MAC SDU, MAC CE, or padding. The MAC entity shall ignore the value of the Reserved bits in downlink MAC PDUs. The MAC SDUs may have variable sizes. The MAC PDU may include one or more MAC subPDUs. Each MAC subPDU includes one of the following: a MAC subheader only (including padding); a MAC subheader and a MAC SDU; a MAC subheader and a MAC CE; or a MAC subheader and padding. The MAC CEs may be placed together. DL MAC subPDU(s) with MAC CE(s)is placed before any MAC subPDU with MAC SDU and MAC subPDU with padding.Uplink MAC subPDU(s) with MAC CE(s) is placed after all the MAC subPDU(s) with MAC SDU and before the MAC subPDU with padding in the MAC PDU. The size of padding can be zero. A maximum of one MAC PDU can be transmitted per transport block (TB) per MAC entity.

[0087] Referring to FIG. 1 , the system may be configured to support multiple-input multiple-output (MIMO) operations, for example, at the UEs 120, 122 or the network nodes 110, 112. In some examples, the system may support UE event driven reporting for MIMO operations. For example, the system may support one or more features to facilitate UE-initiated / event-driven beam management for reducing overhead and / or latency. As used herein, UE-initiated / event-driven beam management refers to event-driven beam management that is initiated by a UE. In some examples, the term event-driven beam management refers to a beam management procedure that is triggered in response to one or more events. In some examples, UE-initiated / event-driven beam management may include the use of a unified transmission configuration indicator (TCI) and / or one or more channel state information (CSI) measurement and reporting configuration frameworks. Additionally, in some examples, UE-initiated / event-driven beam management may utilize one or more frequency ranges, such as FR2 (Frequency Range 2) or other frequency ranges that may include operational frequencies in the millimeter wave (mmWave) region (e.g., above 24 giga Hertz (GHz)). Additionally, in some examples, UE-initiated / event-driven beam management may include (or be otherwise associated with) a transmission reception point (TRP), such as a single transmission reception point (sTRP) with intra-cell beam management and / or inter-cell beam management. In some instances, uplink signaling (e.g., uplink signaling content(s) and / or uplink signaling procedure(s)) for UE-initiated / event-driven beam reporting facilitates relatively fast beam switching. Additionally, in some instances, the UE-initiated / event-driven nature of uplink transmissions, uplink signaling medium(s) / container(s) may be used for (e.g., designed for) the purpose of beam reporting.

[0088] The communication system 100 may support UEIBM. For example, the communication system 100 may employ UEIBM for cases in which a UE (e.g., the UE 120, the UE 122) may benefit from initiating beam reporting to facilitate a beam switch. In some examples, the UEIBM feature refers to cases in which a UE may be configured with at least one event, and may initiate (e.g., start) beam reporting if the at least one event occurs. For example, an event may be associated with at least one condition, and the UE may determine that the event occurred (or is occurring) if the at least one condition is satisfied. UEIBM maylead to reduced overhead within the communication system 100. For example, in accordance with UEIBM, beam reports may be sent by the UE in response to events (e.g., are only sent when needed), thereby reducing a likelihood of unnecessary beam reports, which may occur in the case of periodic reporting configured with relatively small periodicities. UEIBM may also lead to reduce latency within the communication system 100. For example, beam reports may be sent by the UE in response to one or more conditions being satisfied, thereby reducing a likelihood of unnecessary delays, which may occur in the case of periodic reporting configured with large periodicities.

[0089] In some examples, UEIBM may be used in accordance with MIMO. In some such examples, the communication system 100 may support one or more features to facilitate UEI / event-driven beam management for reducing overhead and / or latency. For example, the communication system 100 may support a unified TCI, while leveraging (e.g., as much as possible) one or more CSI measurement and reporting configuration frameworks, targeting frequency range 2 (FR2) and sTRP with intra- and inter-cell beam management. Additionally, or alternatively, the communication system 100 may support UL signaling content(s) (and procedure(s) as required) for UE-initiated / event-driven beam reporting facilitating fast beam switching. Additionally, or alternatively, the communication system 100 may support UL signaling medium / container considering the UE-initiated / event-driven nature of the UL transmission, designed primarily for the purpose of beam reporting.

[0090] In some examples of the communication system 100, a UE (e.g., the UE 120, the UE 122) may be configured to support a UEIBM framework in which the UE is configured to send a single UEI beam report irrespective of whether one or multiple UEI beam reports are triggered (e.g., in response to various conditions being satisfied). In some such examples, resources used at the UE to perform measurements for multiple UEI beam reports are used unnecessarily (e.g., wasted), which is inefficient and reduces the performance of the UE.

[0091] In some other examples of the communication system 100, the UE may be configured to support one or more techniques for multiple UEI beam reports on an uplink channel, as described herein. In some such examples, the UE may receive downlink control signaling that indicates multiple UEIBM configurations for multiple event triggered channel state information (CSI) reports, in which the multiple UEIBM configurations are associated with a first uplink channel (e.g., the same first PUCCH). In some examples, the UE may determine that one or more conditions associated with a subset of the multiple UEIBM configurations are satisfied. In response to the one or more conditions being satisfied, the UE transmits at least two of the multiple event triggered CSI reports via a second uplink channel(e.g., a second PUCCH or a first PUSCH). In some examples, the second uplink channel is fixed. In some other examples, the second uplink channel has a size that is based on at least two payload sizes associated with the multiple UEIBM configurations. By enabling the UE to send multiple UEI beam reports to the network via a single uplink channel (e.g., the second uplink channel), the one or more techniques for multiple UEI beam reports on an uplink channel, as described herein, may improve resource utilization and increase a performance of UEIBM at the UE.

[0092] FIG. 2 illustrates example timing diagrams 200 to which one or more examples disclosed herein may be applied. The timing diagrams 200 (e.g., timing diagram 200-a, timing diagram 200-b, timing diagram 200-c) may be implemented within a communication system, such as within the system of FIG. 1 , by a UE and / or a network node in accordance with one or more aspects of the present disclosure. As illustrated in the example of FIG. 2, various events may trigger a UEI beam report.

[0093] For example, an event referred to herein as Event-2 may trigger a UE to transmit a UEI beam report. Event-2 may include a scenario in which the quality of at least one new beam is sufficiently better than the quality of the current beam. The term “current beam,” as used herein, refers to a beam which a UE is actively using, or is configured to use, to transmit data to and / or receive data from a network node. The term “new beam,” as used herein, refers to a beam that a UE is not actively using, or is not configured to use, to transmit data to and / or receive data from a network node. In some examples, new beams are referred to as “candidate beams” or “candidate new beams.”

[0094] Event-2 may include a scenario in which a quality, such as the LI reference signal received power (Ll-RSRP), of at least one new beam becomes a threshold value better than the current beam. In other words, in accordance with Event-2, the UE may determine that at least one new beam is sufficiently better than the current beam based on the Ll-RSRP (or another quality metric) of the at least one new beam becoming better than that of the current beam by a threshold value. In such an example, the UE may be triggered to transmit a beam report in response to determining that the Ll-RSRP (or another quality metric) of the at least one new beam becomes better than that of the current beam by the threshold value. For example, the network may configure the UE with a threshold, such as pre-determined number of decibels (dB). In such an example, when the UE measures a new beam to have an Ll-RSRP value that is the predetermined number of dB better than the Ll-RSRP of the current beam, a UEI beam report is triggered. As an illustrative example, the network may configure the UE with a threshold of 3 dB. In such an example, when the UE measures a new beam tohave an Ll-RSRP value that is 3 dB better than the Ll-RSRP of the current beam, a UEI beam report is triggered.

[0095] Another event referred to as Event- 1 may additionally, or alternatively, trigger a UE to transmit a UEI beam report. Event- 1 may include scenarios in which the quality of the current beam becomes worse than a threshold. For example, the network may configure the UE with a threshold, such as pre-determined number of dBm (decibel-milliwatts). In such an example, when the UE measures the current beam to have an Ll-RSRP value that is less than the pre-determined number of dBm, a UEI beam report is triggered. In some examples, the UE may use Event- 1 to reduce a likelihood of the UE performing beam failure recovery (BFR), or other costly beam management procedures (e.g., in terms of resources and power consumption). Another event referred to as Event-7 may additionally, or alternatively, trigger a UE to transmit a UEI beam report. Event-7 may include scenarios in which the quality of at least one new beam is sufficiently better than the quality of a reference signal, such as a reference signal derived from an activated TCI with the Q-th best quality. In some examples, Event-7 may include a scenario in which the quality, such as Ll-RSRP, of at least one new beam becomes a threshold value better than the reference signal derived from the activated TCI state with the Q-th best quality. The UE may use Event-7 to update the active TCI state list.

[0096] A UE may be configured with multiple options for determining whether Event-2 is triggered. In other words, in the context of triggering event determinations for Event-2, the UE may have multiple options. In some examples, the UE may determine that Event-2 is triggered, and thus a UEI beam report may be sent, once the Ll-RSRP of the new beam becomes a threshold value better than the current beam. Additionally, or alternatively, the UE may determine that Event-2 is triggered, and thus a UEI beam report may be sent, if, within a time window (which may be configurable), a predetermined number of Event-2 instance(s) for at least one same new beam is greater than or equal to a predetermined number M (which may also be configurable). In other words, the UE may determine to send a UEI beam report for Event-2 in response to one or a predetermined number (e.g., M) occurrences of Event-2.

[0097] A UE may, additionally, or alternatively, be configured with multiple options for sending a UEI beam report in response to an event being triggered. In other words, in the context of how UEI beam reports are to be sent by the UE to the network, the UE may be configured with multiple options (e.g., procedures). In some examples, the UE may be configured to send UEI beam report(s) in accordance with Mode A, in which a second UL channel for transmission of the UEI beam report is a PUSCH dynamically scheduled by thenetwork (e.g., a gNB). In accordance with Mode A, the UE may send, in a first UL channel (e.g., a PUCCH) a single-bit UL indication to request that the gNB allocate resources in the PUSCH to carry the UEI beam report. In response to the request, the gNB indicates to the UE, via DCI, an allocation of a PUSCH resource to carry the UEI beam report. In response to receiving the indication of the PUSCH resource, the UE sends the UEI beam report on the allocated (e.g., scheduled) PUSCH resource.

[0098] In some other examples, the UE may be configured to send UEI beam report(s) in accordance with Mode B, in which a second UL channel for transmission of the UEI beam report is a PUSCH (e.g., a CG-PUSCH) pre-configured by the gNB. In accordance with Mode B, the UE may send, in a first UL channel (e.g., a first PUCCH), a single-bit UL indication to notify the gNB that a UEI beam report is to be transmitted in a pre-configured CG-PUSCH resource. After transmission of the first UL channel, the UE may send the UEI beam report in the first CG-PUSCH resource X symbols after the first PUCCH. The value of X may be configured by the network. In some examples, Mode A may be a baseline procedure supported by UEs capable of UEIBM. In some such examples, Mode B may be optional and supported by some UEs.

[0099] In some examples, the UL signal content of a UEI beam report for Event-2 with Ll-RSRP as the quality metric, may include information for N beams. For example, a UE may be configured to report beam information for the top N beams, in which the top N beams is the N beam(s) with the highest value(s) of the quality metric among measured beams). In such an example, the beam information may include, for the N beams (e.g., for each of the N beam), the beam index (e.g., CRI or SSBRI), the Ll-RSRP value, and / or an indication of whether the beam triggered Event-2. In some examples, such as examples in which the network configures N>1 via RRC, at least one of the N beams included in the UEI beam report may satisfy Event-2. In some examples, in addition to beam information for the N beams, the network may configure, via RRC, the UE to also report beam information for the current beam.

[0100] In some examples, a UE may be configured to monitor (e.g., measure) one or more types of reference signals for Event-2. In other words, in the context of which reference signals may be monitored / measured for the current beam and one or more new beams by the UE for Event-2, the UE may monitor one or more types of reference signals for the current beam and a pre-determined number of new beams. For example, the reference signal(s) for the new beam(s) may be explicitly configured by the network via RRC and may be either a set of SSBs or a set of CSI-RSs. In some examples, the reference signal for the current beamis related to an indicated TCI state, with an implicit method, such that the current beam is either the actual reference signal (e.g., the beam used to actually receive the reference signal) in the indicated TCI state or the SSB which is quasi co-located (QCLed) with the actual reference signal in the indicated TCI state, depending on the configured set of new beams, to increase a likelihood that the reference signals of the current beam and new beams are of the same type (e.g., are either all SSBs or all CSI-RSs).

[0101] In some examples, UEIBM may support beam reporting for Event-2, Event- 1, and Event-7. In other words, on UE-initiated / event-driven beam reporting, regarding trigger events, Event-2, Event- 1, and Event-7 may be supported. In some such examples, Event- 1 corresponds to scenarios in which the quality of the current beam is worse than a predetermined threshold, and Event-7 corresponds to scenarios in which the quality, such as Ll-RSRP, of at least one new beam becomes a threshold value better than the RS derived from the activated TCI state with the Q-th best quality. The value of Q may be RRC configured (e.g., subject to UE capability signalling). In some examples, Event-1 and / or Event-7 may use the same design as Event-2.

[0102] In some examples of UEIBM, a UE may be configured with multiple (different) CSI report configurations. For example, a UE may be configured with two (different) CSI report configurations for Event-2. In the example of FIG. 2, the UE may be configured with Configuration-A and Configuration-B for Event-2. In some examples, different CSI report configurations, such as Configuration-A and Configuration-B, may differ in terms of one or more parameters. For example, Configuration-A and Configuration-B may differ in terms of threshold, set of new beams, number N of reported beams, and / or one or more other types if parameters. In some examples, different CSI report configurations, such as Configuration-A and Configuration-B, may differ as to whether the UE is to include the current beam in the beam report. That is, different CSI report configurations, such as Configuration-A and Configuration-B, may differ as to whether the UE is to include beam information for the current beam in the beam report (e.g., in addition to beam information for N new beams).

[0103] In some examples, a UE may be configured with a single PUCCH resource for multiple configurations. In other words, on beam report transmission procedure for UE-initiated / event-driven beam reporting, a single first PUCCH resource may be associated with one or multiple CSI report configurations (e.g., regarding the same or different events). In the example of FIG. 2, the UE may be configured with a single PUCCH for Configuration-A and Configuration-B (e.g., regarding Event-2).

[0104] In some examples in which a UE is configured with a single PUCCH resource for multiple configurations, the UE may transmit a single UEI beam report via a single PUSCH. That is, in some examples, only a single UEI beam report may be carried in a single PUSCH. In the example of FIG. 2, a single UEI beam report may be carried in a single PUSCH. In some such examples, an additional indication of one CSI report configuration may be provided in the report format of the single PUSCH. For example, the single PUSCH may include an additional indication of Configuration- A or Configuration-B. The CSI report configurations associated with the same PUCCH resource may be ordered. For example, the CSI report configurations associated with the same PUCCH resource may be ordered in ascending order of corresponding configuration identifier (e.g., CSI-ReportConfigld). In such an example, the number of bits of the additional indication field may be ceil(log2(N_CSIconfig)), in which the N_CSIconfig denotes the number of CSI report configurations associated with the same PUCCH resource. Alternatively, as illustrated in the example of FIG. 2, the CSI report configurations associated with the same PUCCH resource may be ordered in ascending order of triggering time. In some examples, the payload size of the single UEI beam report may be determined according to the maximum payload size among the associated CSI report configurations. As illustrated in the example of FIG. 2, zero padding may be appended to a UEI beam report if the payload size of the UEI beam report is less than the payload capacity of the PUSCH 210 (e.g., less than the maximum report payload). In some examples, zero padding includes adding zeros to the end of a time-domain signal, for example, to increase the time-domain length of the signal without adding data (e.g., information) to the signal.

[0105] A reported (e.g., transmitted) UEI beam report may satisfy one or more triggering condition associated with the UEI beam report. That is, a UEI beam report transmitted by a UE may satisfy a set of one or more conditions specified by a CSI report configuration associated with the UEI beam report (e.g., a CSI report configuration for which the UEI beam report is transmitted). In some such examples, if multiple sets of conditions (for multiple CSI report configurations) are satisfied, the UE may down-select from the multiple CSI report configurations. For example, the UE may down-select from the multiple CSI report configurations according to UE implementation (e.g., it is up to UE implementation to select one of the multiple CSI report configurations). That is, in some examples, the down-selection may be according to UE implementation. Additionally, or alternatively, the down-selection may be according to priority. For example, a UEI beam report with the highest priority among UEI beam reports is reported. In some other examples, the down-selection may beaccording to triggering time. For example, a UEI beam report triggered in the latest (e.g., most recent) measurement is reported. The term “triggering time,” and the like, as used herein, refers to a time at which a UEI beam report is triggered. In one non-limiting example, the triggering time includes a time instance at which (or a time window over which) a UE performs one or more measurements that result in an event being triggered. In another nonlimiting example, the triggering time includes a time instance at which (or a time window over which) the UE determines an event is triggered (e.g., based on the performed measurements). In some examples, multiple CSI report configurations associated with a single first PUCCH resource (the same first PUCCH resource) may be configured in the same component carrier (CC). For Mode A, the multiple CSI report configurations associated with the same first PUCCH resource may be associated with the same CSI-AperiodicTriggerState. For Mode B, the multiple CSI report configurations associated with the same first PUCCH resource may be associated with the same second PUSCH resource (e.g., pre-configured / scheduled for transmission of the UEI beam report).

[0106] In some examples in which a UE is configured with multiple CSI report configurations that are associated to the same first PUCCH and for Event-2, once the conditions of at least one of the configured CSI report configurations associated to Event-2 are satisfied, the UE may send a single-bit first PUCCH to the gNB. In such examples, because the first PUCCH is single-bit and common to multiple configured CSI report configurations, the gNB does not know which conditions associated to which CSI report configurations were satisfied. That is, the gNB lacks information for determining the at least one configured CSI report configuration for which the conditions were satisfied.

[0107] In some such examples, after sending the first PUCCH, the UE sends a single UEI beam report on a second PUSCH resource for one of the at least one configured CSI report configurations that were satisfied. Because the gNB lacks information for determining the at least one configured CSI report configuration for which the conditions were satisfied, the UE may also send, in addition to the UEI beam report, an indication of a CSI report configuration whose conditions were met. In some such examples, the size of the second PUSCH used for carrying the beam report (either scheduled by the gNB in Mode A or pre-configured in Mode B) may be determined based on the maximum payload size among the configured CSI report configurations. In some examples, if the payload size of the sent UEI beam report is less than the maximum payload size among the configured CSI report configurations, zero padding is used.

[0108] As illustrated in the example of FIG. 2, in accordance with some UEIBM frameworks, if the conditions of multiple CSI report configurations are met, only one UEI beam report is sent. For example, the UE may send, at maximum, one UEI beam report in cases in which multiple CSI report configurations are configured. In the example of FIG. 2, the UE is configured with two CSI report Configurations, denoted as Configuration A and Configuration B, both of which are associated with Event-2. As illustrated in the example of FIG. 2, Configuration-B has a larger pay load than Configuration- A. That is, Configuration-B has the largest payload among the configured CSI reports. Configuration-B may have a larger payload than Configuration-A based on Configuration-B specifying for more beams to be reported than Configuration-A.

[0109] As illustrated in the example of FIG. 2, Configuration A and Configuration B are associated with the same first PUCCH (e.g., PUCCH 208-a, PUCCH 208-b, PUCCH 208-c). Accordingly, Configuration A and Configuration B are also associated with the same second PUSCH (e.g., PUSCH 210-a, PUSCH 210-b, PUSCH 210-c), in which the size of the second PUSCH is based on the size of Configuration B (e.g., based on Configuration-B having the largest payload among the configured CSI report configurations).

[0110] In some examples, a single UEI beam report is triggered. For example, in the timing diagram 200-a of FIG. 2, UEI beam report 204-a (associated with Configuration-A) is triggered at time 206-a. That is, time 206-a corresponds to the triggering time for UEI beam report 204-a. In response to UEI beam report 204-a being triggered, the UE sends PUCCH 208-a (the first PUCCH associated with UEI beam report 204-a and UEI beam report 204-b) to the network to notify the network that the UE intends to transmit a UEI beam report, or to request a PUSCH allocation for transmission of a UEI beam report. After transmission of the PUCCH 208-a, the UE sends the PUSCH 210-a carrying the UEI beam report 204-a. As illustrated in the timing diagram 200-a, the UE appends zero padding to the UEI beam report 204-a based on the payload size of UEI beam report 204-a being less than the payload size of UEI beam report 204-b. In the timing diagram 200-b of FIG. 2, UEI beam report 204-b (associated with Configuration-B) is triggered at time 206-b. That is, time 206-b corresponds to the triggering time for UEI beam report 204-b. In response to UEI beam report 204-b being triggered, the UE sends a PUCCH 208-b (e.g., the first PUCCH associated with UEI beam report 204-a and UEI beam report 204-b) to the network to notify the network that the UE intends to transmit a UEI beam report, or to request a PUSCH allocation for transmission of a UEI beam report. After transmission of the PUCCH 208-b, the UE sends the PUSCH 210-b(e.g., the second PUSCH) carrying the UEI beam report 204-b. As illustrated in the timing diagram 200-b, no zero padding is appended to the UEI beam report 204-b.

[0111] In some examples, if the conditions of multiple CSI report configurations are met, the UE is not allowed to report back more than one UEI beam report. For example, in the timing diagram 200-c of FIG. 2, UEI beam report 204-a is triggered at time 206-a and UEI beam report 204-b is triggered after UEI beam report 204-a at time 206-b. In response to UEI beam report 204-a and UEI beam report 204-b being triggered, the UE sends PUCCH 208-c to the network to notify the network that the UE will transmit a UEI beam report, or to request a PUSCH allocation for transmission of a UEI beam report. After transmission of the PUCCH 208-a, the UE sends the PUSCH 210-c carrying the UEI beam report 204-a (e.g., only carrying UEI beam report 204-a). The UE may include the UEI beam report 204-a in the PUSCH 210-c based on the triggering time for UEI beam report 204-a occurring before the triggering time of UEI beam report 204-b. As illustrated in the timing diagram 200-c, the UE appends zero padding to the UEI beam report 204-a based on the payload size of UEI beam report 204-a being less than the payload size of UEI beam report 204-b.

[0112] The constraint of reporting a single UEI beam report may be inefficient and lead to reduced resource utilization (e.g., wasted resources). For example, for triggered UEI beam reports that are not reported, the UE has already performed measurements, and consumed energy to do so. As such, preventing the UE from reporting the performed measurements is inefficient. A more efficient framework for UEIBM reporting may include a mechanism by which the UE may report measurements for multiple UEIBM configurations.

[0113] In some examples, for cases in which multiple events are simultaneously triggered (e.g., for different events, such as Event-2 and Event-1), a common / shared UEI beam report may be sent back by the UE. In such examples, however, a different UEI beam report format may be used for any pair, triplet or even higher order of CSI report configurations, which may lead to increased complexity and be relatively difficult to implement.

[0114] In some other examples, for cases multiple events are simultaneously triggered (e.g., for different events, such as Event-2 and Event-1), one UEI beam report may be sent on the first available PUSCH and another UEI beam report may be sent on the following available PUSCH. In such examples, however, at least two PUSCH resource allocations are used (and thus needed) to send the two UEI beam reports instead of one, which may lead to increased latency.

[0115] In yet some other examples, in case multiple events are simultaneously triggered, all UEI beam reports may be reported. In such examples, the UE may use a multi-bit firstPUCCH to inform the gNB of which events are triggered with the first PUCCH so that the gNB may dynamically schedule the PUSCHs. However, such a mechanism is not suitable for cases in which a single-bit first PUCCH is used, and in which the gNB does not know which and / or how many events are triggered.

[0116] In still some other examples, for cases in which multiple events are simultaneously triggered in Mode A, the DCI from the gNB may indicate to the UE which UEI beam report to send. In such examples, however, the UE must inform the gNB (or the gNB must otherwise determine) which events and / or CSI report configurations are triggered, for example via a multi-bit first PUCCH. Consequently, such a mechanism is also not suitable for cases in which a single-bit first PUCCH is used.

[0117] Various aspects of the present disclosure provide a mechanism for sending multiple UEI beam reports in cases in which multiple CSI report configurations associated with the same first PUCCH are triggered (e.g., simultaneously or consecutively). That is, various aspects of the present disclosure provide for one or more techniques for multiple UEI beam reports on an uplink channel. In accordance with various aspects of the present disclosure, multiple UEI beam reports associated with the same first uplink resource (e.g., the same first PUCCH) may be transmitted in the same second uplink resource (e.g., the same second PUSCH). For example, in accordance with various aspects of the present disclosure, the UE may transmit UEI beam report 204-a and UEI beam report 204-b via PUSCH 210-c. In some examples, the UE may receive downlink control signaling that indicates multiple UEIBM configurations for multiple event triggered CSI reports, in which the multiple UEIBM configurations are associated with a first uplink channel (e.g., the same first PUCCH). For example, the UE may receive downlink control signaling indicating Configuration- A and Configuration-B. The UE may determine that one or more conditions associated with a subset of the multiple UEIBM configurations are satisfied (e.g., at time 206-a and time 206-b). In response to the one or more conditions being satisfied, the UE may transmit at least two of the multiple event triggered CSI reports via a second uplink channel (e.g., may transmit UEI beam report 204-a and UEI beam report 204-b via PUSCH 210-c). In some examples, the second uplink channel is fixed. In some other examples, the second uplink channel has a size that is based on at least two payload sizes associated with the multiple UEIBM configurations. By enabling the UE to send multiple UEI beam reports to the network via a single uplink channel (e.g., the second uplink channel), the one or more techniques for multiple UEI beam reports on an uplink channel, as described herein, may reduce latency and increase a performance of UEIBM at the UE.

[0118] FIG. 3 illustrates an example timing diagram 300 to which one or more examples disclosed herein may be applied. The timing diagram 300 may be implemented within a communication system, such as within the system of FIG. 1, by a UE and / or a network node in accordance with one or more aspects of the present disclosure. As illustrated in the example of FIG. 3, a UE may be configured with UEIBM with several CSI report configurations (e.g., CSI-Reportconfigs) associated to a same single-bit first PUCCH.

[0119] In the example of FIG. 3, the UE may be configured with four CSI report configurations (e.g., CSI-Reportconfigs), denoted as Conf-0, Conf-1, Conf-2, and Conf-3. In some examples, if multiple UEI beam reports are triggered because respective conditions associated with the multiple CSI-Reportconfigs are met, the UE may include a subset of the corresponding UEI beam reports in a single uplink channel (e.g., a single uplink resource allocation, such as a single PUSCH resource or a single PUCCH resource), in which the subset of the triggered multiple beam reports included in the uplink channel fits the size of the uplink channel. The term “subset,” as used herein, refers to one or more. Accordingly, the subset of the multiple event triggered CSI reports includes one or more event triggered CSI reports.

[0120] In some examples, the criterion for selecting CSI-Reportconfigs for which a UEI beam report is to be included into the single uplink channel may be based on the respective triggering time of one or more CSI-Reportconfigs (e.g., each CSI-Reportconfig). In some such examples, the highest priority may be given to the latest (e.g., most recently) triggered CSI-Reportconfigs. For example, the triggered CSI-Reportconfigs may be ordered by triggering time, and the last CSI-Reportconfig triggered may be initially included in the uplink channel. If space allows, the second last CSI-Reportconfig triggered may be added after the last CSI-Reportconfig triggered. For example, the UE may determine that remaining space in the uplink channel (after the UEI beam report for the last CSI-Reportconfig triggered is added) is greater than the payload size of the UEI report for the second last CSI-Reportconfig triggered. In such an example, the UE may add the UEI report for the second last CSI-Reportconfig triggered after the UEI beam report for the last CSI-Reportconfig triggered. In another example, the UE may determine that remaining space in the uplink channel (after the UEI beam report for the last CSI-Reportconfig triggered is added) is less than the payload size of the UEI report for the second last CSI-Reportconfig triggered. In such an example, the UE may skip the second last CSI-Reportconfig triggered and determine whether a next last triggered CSI-Reportconfig may be added. For example, if space allows, the third last CSI-Reportconfig triggered may be added after the last CSI-Reportconfigtriggered. CSI-Reportconfigs (e.g., UEI beam reports for CSI-Reportconfig) may be added to an uplink channel until, for example, no space remains in the uplink channel or until UEI beam reports for all triggered CSI-Reportconfigs are included.

[0121] In some other examples in which the criterion for selecting CSI-Reportconfigs is based on the respective triggering time of one or more CSI-Reportconfigs (e.g., each CSI-Reportconfig), the highest priority may be given to the first triggered CSI-Reportconfigs. In some such examples, the triggered CSI-Reportconfigs may be ordered by triggering time, and the first CSI-Reportconfig triggered may be initially included in the uplink channel. If space allows, the second CSI-Reportconfig triggered may be added after the first CSI-Reportconfig triggered. For example, the UE may determine that remaining space in the uplink channel (after the UEI beam report for the first CSI-Reportconfig triggered is added) is greater than the payload size of the UEI report for the second CSI-Reportconfig triggered. In such an example, the UE may add the UEI report for the second CSI-Reportconfig triggered after the UEI beam report for the first CSI-Reportconfig triggered. In another example, the UE may determine that remaining space in the uplink channel (after the UEI beam report for the first CSI-Reportconfig triggered is added) is less than the payload size of the UEI report for the second CSI-Reportconfig triggered. In such an example, the UE may skip the second CSI-Reportconfig triggered and determine whether a next triggered CSI-Reportconfig may be added. For example, if space allows, the third CSI-Reportconfig triggered may be added after the first CSI-Reportconfig triggered. CSI-Reportconfigs (e.g., UEI beam reports for CSI-Reportconfig) may be added to an uplink channel until, for example, no space remains in the uplink channel or until UEI beam reports for all triggered CSI-Reportconfigs are included.

[0122] In some examples, the criterion for selecting CSI-Reportconfigs for which a UEIBM beam report is to be included in the single uplink channel may be based on the respective identifier (ID) of one or more CSI-Reportconfigs (e.g., each CSI-Reportconfig). In some such examples, the highest priority may be given to the CSI-Reportconfigs with the lowest IDs among the multiple CSI-Reportconfigs. For example, the UE may be configured with L CSI-Reportconfigs. In such an example, log2(L) bits may be used to represent the IDs of the CSI-Reportconfigs (e.g., to represent 0, 1, ..., L-l). As such, the CSI-Reportconfig with the lowest ID may be initially included in the uplink channel. If space allows, the CSI-Reportconfig with the second lowest ID may be added after the CSI-Reportconfig with the lowest ID. For example, the UE may determine that remaining space in the uplink channel (after the UEI beam report for the CSI-Reportconfig with the lowest ID is added) is greater than the payload size of the UEI report for the CSI-Reportconfig with the second lowest ID.In such an example, the UE may add the UEI report for the CSI-Reportconfig with the second lowest ID after the UEI beam report for the CSI-Reportconfig with the lowest ID. In another example, the UE may determine that remaining space in the uplink channel (after the UEI beam report for the CSI-Reportconfig with the lowest ID is added) is less than the payload size of the UEI report for the CSI-Reportconfig with the second lowest ID. In such an example, the UE may skip the CSI-Reportconfig with the second lowest ID and determine whether the CSI-Reportconfig with a next lowest ID may be added. For example, if space allows, the CSI-Reportconfig with the third lowest ID may be added after the CSI-Reportconfig with the lowest ID. CSI-Reportconfigs (e.g., UEI beam reports for CSI-Reportconfig) may be added to an uplink channel until, for example, no space remains in the uplink channel or until UEI beam reports for all triggered CSI-Reportconfigs are included.

[0123] In some other examples in which the criterion for selecting CSI-Reportconfigs is based on the respective ID of one or more CSI-Reportconfigs (e.g., each CSI-Reportconfig), the highest priority may be given to the CSI-Reportconfigs with the highest IDs. In some such examples, the CSI-Reportconfig with the highest ID may be initially included in the PUSCH. If space allows, the CSI-Reportconfig with the second highest ID may be added after the CSI-Reportconfig with the highest ID. For example, the UE may determine that remaining space in the uplink channel (after the UEI beam report for the CSI-Reportconfig with the highest ID is added) is greater than the payload size of the UEI report for the CSI-Reportconfig with the second highest ID. In such an example, the UE may add the UEI report for the CSI-Reportconfig with the second highest ID after the UEI beam report for the CSI-Reportconfig with the highest ID. In another example, the UE may determine that remaining space in the uplink channel (after the UEI beam report for the CSI-Reportconfig with the highest ID is added) is less than the payload size of the UEI report for the CSI-Reportconfig with the second highest ID. In such an example, the UE may skip the CSI-Reportconfig with the second highest ID and determine whether the CSI-Reportconfig with a next highest ID may be added. For example, if space allows, the CSI-Reportconfig with the third highest ID may be added after the CSI-Reportconfig with the highest ID. CSI-Reportconfigs (e.g., UEI beam reports for CSI-Reportconfig) may be added to an uplink channel until, for example, no space remains in the uplink channel or until UEI beam reports for all triggered CSI-Reportconfigs are included.

[0124] In yet some other examples in which the criterion for selecting CSI-Reportconfigs is based on the respective ID of one or more CSI-Reportconfigs (e.g., each CSI-Reportconfig), the priority may be configured by the network (e.g., via RRC or MAC-CE). Insome such examples, the network may select the priority for one or more configurations. For example, the UE may be configured with 5 CSI-Reportconfigs (e.g., L=5 configured CSI-Report configs). In such an example, the network may select (e.g., has full flexibility to select) the priority for each of the 5 CSI-Reportconfigs or for a portion of the 5 CSI-Reportconfigs. That is, the network may select the priority for one or more of the 5 CSI-Reportconfigs.

[0125] In some examples, the network may configure the priority (e.g., the whole order) of all configured CSI-Reportconfigs. For example, the network may configure the priority of the 5 CSI-Reportconfigs by configuring the UE with the following order: 2 > 0 > l > 3 > 4. In such an example, CSI-Reportconfig 2 has a higher priority than CSI-Reportconfig 0, which has a higher priority than CSI-Reportconfig 1 , which has a higher priority than CSI-Reportconfig 3, which has a higher priority than CSI-Reportconfig 4. In some other examples, the network may configure the priority for a set of CSI-Reportconfigs. For example, the network may configure the priority for a set of CSI-Reportconfigs with the highest priority among the configured CSI-Reportconfigs. In such an example, for cases in which the UE is configured with 5 CSI-Reportconfigs (e.g., L=5 configured CSI-Reportconfigs), the network may indicate that CSI-Reportconfig 2 has the highest priority. Alternatively, the network may indicate that CSI-Reportconfigs 2 and 4 have the highest priority. In some other examples, the network may configure the priority for a set of CSI-Reportconfigs with the lowest priority among the configured CSI-Reportconfigs. For example, for cases in which the UE is configured with 5 CSI-Reportconfigs (e.g., L=5 configured CSI-Reportconfigs), the network may indicate that CSI-Reportconfig 2 has the lowest priority. Alternatively, the network may indicate that CSI-Reportconfigs 2 and 4 have the lowest priority.

[0126] In some examples, the criterion for selecting CSI-Reportconfigs for which a UEI beam report is to be included in the single uplink channel may be based on the respective payload size of one or more CSI-Reportconfigs (e.g., each CSI-Reportconfig). In some such examples, the highest priority may be given to the largest triggered CSI-Reportconfigs. That is, the highest priority may be given to a triggered CSI-Reportconfig with the largest payload size among triggered CSI-Reportconfigs. In some other examples in which the criterion for selecting CSI-Reportconfigs is based on the respective payload size of one or more CSI-Reportconfigs (e.g., each CSI-Reportconfig), the highest priority may be given to the smallest triggered CSI-Reportconfigs. That is, the highest priority may be given to a triggered CSI-Reportconfig with the smallest payload size among triggered CSI-Reportconfigs.

[0127] In some examples, the criterion for selecting CSI-Reportconfigs for which a UEI beam report is to be included into the single uplink resource may be based on a maximization of the number of UEI beam reports included. For example, the UE may be configured with 5 CSI-Reportconfigs (e.g., L=5 configured CSI-Reportconfigs) and CSI-Reportconfigs 1, 2, and 3 may be triggered. In such an example, if CSI-Reportconfig 1 has a large payload size such that the pair of CSI-Reportconfigs 1 and 2 and the pair of CSI-Reportconfigs 1 and 3 do not fit in the single uplink channel, but the pair of CSI-Reportconfigs 2 and 3 do fit in the single uplink channel, the UE may report the pair of CSI-Reportconfigs 2 and 3.

[0128] In some examples, the UE may be configured with multiple CSI-Reportconfigs associated with a single event. That is, in some examples, multiple configured CSI-Reportconfigs may be associated to a same event. For example, a first CSI-Reportconfig may be configured at the UE for Event-2 with a 3 dB threshold where the UE reports N=2 beams and a second CSI-Reportconfig may be configured for Event-2 with 6 dB threshold where the UE reports N=4 beams. In some other examples, the UE may be configured with multiple CSI-Reportconfigs associated with multiple events. That is, the multiple configured CSI-Reportconfigs may be associated to different events. In some such examples, one or more than one CSI-Reportconfig may be configured for a single event. For example, a first CSI-Reportconfig may be configured for Event-2 with 3 dB threshold where the UE reports N=2 beams, a second CSI-Reportconfig may be configured for Event-2 with 6 dB threshold where the UE reports N=4 beams, and a third CSI-Reportconfig may be configured for Event- 1 with -90 dBm threshold where the UE reports N=1 beam in addition to the current beam.

[0129] As illustrated in the example of FIG. 3, within a framework with a single-bit first uplink channel and a single second uplink channel with pre-dimensioned size (e.g., with single-bit first PUCCH and one PUSCH resource with pre-dimensioned size), multiple beam reports may (e.g., under certain conditions) be sent by the UE in a single uplink channel if multiple CSI-Reportconfigs are triggered.

[0130] The timing diagram 300-a illustrates an example in which UEIBM reporting is performed with the highest priority given to the latest triggered CSI report configurations. In the example timing diagram 300-a, Conf-0, Conf-1, Conf-2, and Conf-3 are associated with a first uplink channel 308-a. Conf-0 is triggered at time 306-a, Conf-2 is triggered at time 306-b, and Conf-3 is triggered at time 306-c. Accordingly, Conf-3 is the latest triggered CSI report configuration and, as such, is initially included in a second uplink channel 310-a. Conf-2 is the second latest triggered CSI report following Conf-3. Based on the second uplink channel size 302 accommodating the payload size of Conf-2 and Conf-3, Conf-2 isincluded in the second uplink channel 310-a after Conf-3. The second uplink channel size 302 does not accommodate the size of Conf-2, Conf-3, and the next latest triggered CSI report configuration following Conf-2 (e.g., Conf-0). As such, zero padding 312-a may be appended to the UEI beam report after Conf-2 (e.g., after the UEI beam report associated with Conf-2).

[0131] The timing diagram 300-b illustrates an example in which UEIBM reporting is performed with the highest priority given to the triggered CSI report configuration with the lowest ID. For example, the value of the ID for Conf-0 is 0, the value of the ID for Conf-2 is 2, and the value of the ID for Conf-3 is 3. In such an example, Conf-0 has the lowest ID and, as such, is initially included in the second uplink channel 310-b. The second uplink channel size 302 may not accommodate the size of Conf-0 and the triggered CSI report configuration with the next lowest ID following Conf-0 (e.g., Conf-2). As such, zero padding 312-b may be appended to the UEI beam report after Conf-0 (e.g., after the UEI beam report associated with Conf-0). Although the UE may include a subset of multiple beam reports into a single PUSCH resource in a framework in which the second uplink channel size is fixed (e.g., decided based on the maximum payload size among the configured CSI-Reportconfigs) the UE may also be configured to use a flexible size / dimension of the second uplink channel for carrying beam report(s). That is, the second uplink channel, which may either be scheduled by the gNB in Mode A or pre-configured in Mode B, may have a size that is flexible. In some examples, the size of the second uplink channel is a function of multiple payload sizes among a subset of the configured CSI-Reportconfigs.

[0132] FIG. 4 illustrates an example diagram 400 of UEI beam reports to which one or more examples disclosed herein may be applied. Such beam reports may be transmitted within a communication system, such as within the system of FIG. 1 , by a UE in accordance with one or more aspects of the present disclosure. As illustrated in the example of FIG. 4, the UE may support a flexible size / dimension of an uplink channel for carrying one or more beam reports (either scheduled by the gNB in Mode A or pre-configured in Mode B). The size of the uplink channel may be a function of multiple payload sizes among at least a subset of the configured CSI-Reportconfigs. In some examples, the uplink channel size may be determined at the UE (e.g., dynamically). For example, the UE may determine the size of the uplink channel based on the summation of multiple payload sizes among at least a subset of the configured CSI-Reportconfigs. In some examples, the UE may determine the size of the uplink channel based on the summation of all the payload sizes of the configured CSI- Report configs. In such examples, any pair, triplet, or higher order (e.g., a quartet, a quintet)of triggered CSI-Reportconfigs may be reported. In some other examples, the UE may determine the size of the uplink channel based on the summation of a predetermined number of largest or smallest payload sizes among the configured CSI-Reportconfigs. For example, the UE may determine the size of the uplink channel based on the summation of the two largest payload sizes among the configured CSI-Reportconfigs. In such an example, any pair of simultaneously triggered CSI-Reportconfigs may be reported. In some examples, a pair of simultaneously triggered CSI-Reportconfigs may be reported with less zero padding than may occur, for example, in cases in which the uplink channel size is determined based on the summation of all the payload sizes and only one CSI-Reportconfig is triggered. In some examples, if a triplet of CSI-Reportconfigs with sufficiently small payload size is triggered, the triplet may also be reported. In yet some other examples, the UE may determine the uplink channel size based on the summation of the X largest payload sizes among the configured CSI-Reportconfigs, in which X is an integer with a value between 1, 2, ..., L ( L being the total number of configured CSI-Reportconfigs).

[0133] The UE may be preconfigured with one or more parameters and / or rules for determining the size of the uplink channel. Additionally, or alternatively, the network may configure (e.g., initially configure or update) the UE with one or more parameters and / or rules for determining the size of the uplink channel. For example, the network may use RRC signaling to configure the UE with parameters and / or rules for determining the size of the uplink channel.

[0134] FIG. 4 illustrates examples of reports that may be sent by a UE configured with three different CSI-Reportconfigs associated to Event-2, denoted Conf-A, Conf-B, and Conf-C. Although the example of FIG. 4 illustrates the three CSI-Reportconfigs being associated with the same event (e.g., Event-2), the examples provided herein may also apply to scenarios in which multiple CSI-Reportconfigs are associated with different events. The three different CSI-Reportconfigs differ with respect to one or more parameters. Accordingly, the three different CSI-Reportconfigs are associated with three different UEI beam reports, which differ in size. As illustrated in the example of FIG. 4, the UE may transmit one or more of the UEI beam reports in a PUSCH having PUSCH size 402. Although the example of FIG. 4 illustrates the uplink channel (used to carry multiple UEI beam reports) as a PUSCH, the examples described herein may also apply to a PUCCH. In the example of FIG. 4, the PUSCH size 402 is determined according to the sum of the two largest pay load sizes among the three CSI-Reportconfigs, which are Conf-A and Conf-C. For example, the payload size of UEI beam reports sent for Conf-C may be larger than the payload size of UEI beam reportssent for Conf-A, which may be larger than the payload size of UEI beam reports sent for Conf-B. Thus, Conf-A and Conf-C have two largest payload sizes among the three CSI-Report configs. Accordingly, in the example of FIG. 4, the PUSCH size 402 is determined according to the sum of the payload size of Conf-A and the payload size of Conf-C.

[0135] In some examples, the UE may transmit the uplink channel in response to a single CSI-Reportconfig being triggered. For examples in which the uplink channel size is determined according to the sum of the two (or more) largest payload sizes among the three CSI-Reportconfigs, the uplink channel carries a single beam report with zero padding. For example, the UE may transmit PUSCH 410-a in response to Conf-A being triggered and, as such, PUSCH 410-a carries a single beam report for Conf-A with zero padding. In another example, the UE may transmit PUSCH 410-b in response to Conf-B being triggered and, as such, PUSCH 410-b carries a single beam report for Conf-B with zero padding. In yet another example, the UE may transmit PUSCH 410-c in response to Conf-C being triggered and, as such, PUSCH 410-c carries a single beam report for Conf-C with zero padding.

[0136] In some other examples, the UE may transmit an uplink channel in response to multiple CSI-Reportconfigs being triggered. In such examples, the uplink channel carries multiple beam reports with or without zero padding. For example, the UE may transmit PUSCH 410-d in response to Conf-A and Conf-B being triggered. In such an example, PUSCH 410-d carries a beam report for Conf-A, a beam report for Conf-B, and zero padding. In another example, the UE may transmit PUSCH 410-e in response to Conf-B and Conf-C being triggered. In such an example, PUSCH 410-e carries a beam report for Conf-B, a beam report for Conf-C, and zero padding. In yet another example, the UE may transmit PUSCH 410-f in response to Conf-A and Conf-C being triggered. In such an example, due to the PUSCH size being determined according to the sum of the payload sizes associated with Conf-A and Conf-C (e.g., the two largest payload sizes among the three CSI-Reportconfigs), PUSCH 410-c carries a beam report for Conf-A and a beam report for Conf-C (e.g., with no zero padding).

[0137] In some examples, more than two CSI-Reportconfigs (e.g., all configured CSI-Reportconfigs) may be triggered. In such examples, the UE may apply a rule to determine which beam reports to include in the uplink channel. For example, the UE may transmit PUSCH 410-g in response to Conf-A, Conf-B, and Conf-C being triggered. In such an example, in accordance with the rule, the UE may determine to include a beam report for Conf-A and a beam report for Conf-C. Accordingly, PUSCH 410-g carries the beam report for Conf-A and the beam report for Conf-C (e.g., with no zero padding).

[0138] The UE may be configured to apply the framework for determining the size of the uplink channel, as described herein, in accordance with different events configured at the UE (e.g., because the beam report sizes for different events may be different). For example, for Event-2, the beam report design may specify for N beams to be reported, in which N=l, 2 or 4. In some such examples, for Event-2, the network may configure the UE to report N beams in addition to the current beam. In some examples, for Event- 1, the beam report design may specify for the UE to report just the current beam (e.g., to only report the current beam). In some such examples, the Event- 1 beam report size may be smaller than the Event-2 beam report size. In some examples, for Event-7, the beam report design may specify a predetermined number of beams to be reported greater than or equal to Q. In some such examples, the parameter Q may be up to 8 and, as such, the Event-7 beam report size may be larger than the Event-2 beam report size.

[0139] FIG. 5 illustrates an example diagram 500 of UEI beam reports to which one or more examples disclosed herein may be applied. Such beam reports may be transmitted within a communication system, such as within the system of FIG. 1 , by a UE in accordance with one or more aspects of the present disclosure. As illustrated in the example of FIG. 5, the UE may be configured to transmit UEI beam reports for different CSI-Reportconfigs associated to different events (e.g., three different CSI-Reportconfigs, each associated to a different event). For example, the UE may be configured with three different CSI-Reportconfigs associated to Event- 1, Event-2, and Event-7. As illustrated in the example of FIG. 5, beam reports for a UE configured with multiple events may have multiple beam report sizes. For example, a beam report for Event- 1 may be the smaller than a beam report for Event-2, which may be smaller than a beam report for Event-7. In some examples, such as in the example of FIG. 5, the UE may be configured to determine the size of an uplink channel used to carry UEI beam reports based on the largest payload size among the configured CSI-Reportconfigs. For example, a PUSCH size 502 may be determined according to the payload size of UEI beam reports for Event-7 based on Event-7 being associated with the largest payload size among the three events (e.g., based on Event-7 being associated with the maximum payload size). Although the example of FIG. 4 illustrates the uplink channel (used to carry multiple UEI beam reports) as a PUSCH, the examples described herein may also apply to a PUCCH.

[0140] In some examples, the UE may transmit the uplink channel in response to a single CSI-Reportconfig being triggered. For examples in which the uplink channel size is determined based on the largest payload size among the three CSI-Reportconfigs, the uplinkchannel carries a single beam report with or without zero padding (e.g., based on which CSI-Reportconfig is triggered). For example, the UE may transmit PUSCH 510-a in response to Event-7 being triggered and, as such, PUSCH 510-a carries a single beam report for Event-7 (e.g., with no zero padding due to the PUSCH size 502 being based on Event-7). In another example, the UE may transmit PUSCH 510-b in response to Event- 1 being triggered and, as such, PUSCH 510-b carries a single beam report for Event-1 with zero padding. In yet another example, the UE may transmit PUSCH 510-c in response to Event-2 being triggered and, as such, PUSCH 510-c carries a single beam report for Event-2 with zero padding (which may be less zero padding than that which is included in PUSCH 510-b due to the beam report for Event- 1 being smaller than the beam report for Event-2).

[0141] In some other examples, the UE may transmit an uplink channel in response to multiple CSI-Reportconfigs being triggered. In such examples, the uplink channel carries multiple beam reports with or without zero padding. For example, the UE may transmit PUSCH 510-d in response to Event- 1, Event-2, and Event-7 being triggered. In some examples, based on the PUSCH size 502, and in accordance with a rule, the UE may determine to send a beam report for Event- 1 and Event-2. For example, the rule may specify for the UE to maximize the number of UEI beam reports carried in the PUSCH. In such an example, based on the PUSCH size 502, the PUSCH 510-d carries the beam report for Event-1, the beam report for Event-2, and zero padding.

[0142] FIG. 6 illustrates an example of a signaling diagram 600 to which one or more examples disclosed herein may be applied. The signalling diagram of FIG. 6 illustrates operations performed, such as within the system of FIG. 1 , by the UE 620 and the network node 610 in accordance with one or more aspects of the present disclosure. The UE 620 and the network node 610 may be examples of the corresponding devices illustrated by and described with reference to FIG. 1. One or more operations performed at the UE 620 and the network node 610 may be performed in a different order than the example order shown. Additionally, or alternatively, one or more operations performed at the UE 620 and the network node 610 may be omitted and / or one or more other operations may be added. The signaling diagram 600 supports one or more techniques for multiple UEI beam reports on an uplink channel, as described herein.

[0143] At 622, the UE 620 may receive downlink control signaling (e.g., RRC signaling) from the network node 610 that indicates multiple configurations (e.g., CSI-Reportconfigs) for multiple event triggered CSI reports. The multiple configurations may be associated witha first uplink channel. That is, the multiple configurations may be associated with the same first uplink channel. The first uplink channel may include a first PUCCH resource allocation.

[0144] At 626, the UE 620 may determine that one or more conditions associated with a subset of the multiple configurations are satisfied. For example, the multiple configurations may be associated with multiple conditions (e.g., each configuration may be associated with a respective set of one or more conditions) and the UE 620 may determine that one or more of the multiple conditions are satisfied.

[0145] In some examples, at 628, the UE 620 may transmit the first uplink channel to the network node 610 to indicate, to the network node 610, that the UE 620 intends to transmit a UEI beam report. In some examples, the UE 620 may transmit the first uplink channel in accordance with Mode A. In such examples, the first uplink channel may indicate a request for the network node 610 to allocate an uplink resource for transmission of a UEI beam report. In some other examples, the UE 620 may transmit the first uplink channel in accordance with Mode B. In such examples, the first uplink channel may notify the network node 610 that the UE 620 intends to transmit the first uplink channel using a pre-configured uplink resource (e.g., a CG-PUSCH).

[0146] At 632, the UE 620 may transmit at least two of the multiple event triggered CSI reports via a second uplink channel based on the one or more conditions being satisfied. The second uplink channel may include a second PUCCH resource allocation or a PUSCH allocation. For example, the second uplink channel may include a PUSCH allocated by the network node 610 in response to the first uplink channel. In some other examples, the second uplink channel may include a pre-configured PUSCH.

[0147] In some examples, at 630, the UE 620 may select the at least two event triggered CSI reports from among the multiple event triggered CSI reports based on at least one priority associated with the multiple configurations. In some such examples, the network may configure the UE with the priorities. For example, the UE may receive second control signaling that indicates the at least one priority associated with the multiple configurations. The second control signaling may indicate the at least one priority by indicating an order by which to prioritize at least one configuration of the multiple configurations. For example, the network may configure the priority of 5 configurations by configuring the UE with the following order: 2 > 0 > l > 3 > 4. Alternatively, the second control signaling may indicate the at least one priority by indicating that at least one configuration of the multiple configurations has the highest priority among the multiple configurations. For example, of the 5 configurations, the network may indicate that configuration 2 (or configurations 2 and 4, orsome other suitable combination of configurations) has the highest priority. Alternatively, the second control signaling may indicate the at least one priority by indicating that at least one configuration of the multiple configurations has the lowest priority among the plurality of configurations. For example, of the 5 configurations, the network may indicate that configuration 2 (or configurations 2 and 4, or some other suitable combination of configurations) has the lowest priority.

[0148] In some other examples, the priority may be based on triggering times associated with the configurations. For example, the UE 620 may select the at least two event triggered CSI reports from among the multiple event triggered CSI reports based on at least one triggering time associated with the plurality of configurations. In some such examples, the subset of the multiple configurations is associated with a subset of triggering times (e.g., each configuration is associated with a respective triggering time) and the at least one triggering time includes at least the first two or the last two triggering times among the subset of triggering times. That is, the priority may be given to a predetermined number of first triggering times or a predetermined number of last triggering times (e.g., most recent triggering times).

[0149] In yet some other examples, the priority may be based on IDs associated with the configurations. For example, the UE 620 may select the at least two event triggered CSI reports from among the multiple event triggered CSI reports based on at least one ID (e.g., CSI-ReportConfigld) associated with the multiple configurations. In such an example, the subset of the multiple configurations is associated with a subset of IDs (e.g., each configuration is associated with a respective ID) and the at least one ID includes at least the lowest two or the highest two identifiers among the subset of identifiers. That is, the priority may be given to a predetermined number of lowest IDs among the configurations or a predetermined number of highest IDs among the configurations.

[0150] In still some other examples, the priority may be based on payload sizes associated with the configurations. For example, the UE 620 may select the at least two event triggered CSI reports from among the multiple event triggered CSI reports based on at least one payload size associated with the multiple configurations. In such an example, the subset of the multiple configurations may be associated with a subset of payload sizes (e.g., each configuration is associated with a respective payload size) and the at least one payload size includes at least the smallest two or the largest two payload sizes among the subset of pay load sizes. That is, the priority may be given to a predetermined number of smallest payload sizes among the configurations or a predetermined number of largest payload sizesamong the configurations. In some examples, selection of the at least two event triggered CSI reports is based on a combined payload size associated with at least two configurations of the subset of the plurality of configurations. By enabling the UE 620 to send multiple UEI beam reports to the network via a single uplink channel (e.g., the second uplink channel), one or more techniques for multiple UEI beam reports on an uplink channel, as described herein, may improve resource utilization and increase a performance of UEIBM at the UE.

[0151] In some examples, the second uplink channel has a size that is based on at least two payload sizes associated with the multiple configurations. In some such examples, the size of the second uplink channel is based on a summation of the at least two payload sizes. For example, the multiple configurations may be associated with multiple payload sizes including the at least two payload sizes (e.g., each configuration may be associated with a respective payload size) and the size of the second uplink channel may be based on a summation of the multiple payload sizes (e.g., the summation of all payload sizes). In another example, the size of the second uplink channel may be based on a summation of a predetermined number of largest payload sizes among the multiple pay load sizes. For example, the size of the second uplink channel may be based on a summation of the two largest pay load sizes among the multiple payload sizes.

[0152] In some examples, the UE 620 may receive an indication of a first quantity of payload sizes associated with the second uplink channel. In some such examples, the at least two payload sizes include a second quantity of payload sizes that is based on the first quantity of payload sizes. In other words, the network may indicate, to the UE 620, the quantity of payload sizes on which the UE 620 is to determine the size of the second uplink channel. Alternatively, the at least two payload sizes include a pre-determined quantity of payload sizes.

[0153] In some examples, at 624, the UE 620 may determine the size of the second uplink channel based on the at least two payload sizes in accordance with a rule. For example, the rule may specify for the size of the second uplink channel to be determined based on the summation of multiple payload sizes associated with the multiple configurations. Alternatively, the rule may specify for the size of the second uplink channel to be determined based on the summation of the two largest payload sizes among a multiple payload sizes associated with the multiple configurations. Alternatively, the rule may specify for the size of the second uplink channel to be determined based on the summation of X largest payload sizes among multiple payload sizes associated with the multiple configurations. In some such examples, X may be an integer greater than 1. In someexamples, the UE 620 may receive an indication of the rule for determining the size of the second uplink channel. In some other examples, the rule may be pre-configured (e.g., hard coded or configured via RRC signaling) at the UE 620.

[0154] In some examples, the second uplink channel may be pre-configured by the network node 610. For example, the UE 620 may receive RRC signaling indicating a configured grant (CG) for the second uplink channel (e.g., a CG-PUSCH). In some other examples, the second uplink channel may be dynamically scheduled for the UE 620 by the network node 610. For example, the UE 620 may receive DCI scheduling the PUSCH for the UE 620. By enabling the UE 620 to determine the size of the second uplink channel, one or more techniques for flexible UEI beam reports, as described herein, may improve resource utilization and increase a performance of UEIBM at the UE 620.

[0155] FIG. 7 illustrates an example block diagram of an apparatus 10 to which one or more examples disclosed herein may be applied. The apparatus 10 includes, for example, at least one processor 12 and at least one memory 14 storing instructions 15 that, when executed by the at least one processor, cause the apparatus 10 at least to perform the method or methods as disclosed herein, and one or more embodiments thereof. In an example, the at least one memory and the instructions (e.g., a computer program code, software), are configured, with the at least one processor, to cause the apparatus 10 to perform the method or methods as disclosed herein, and one or more embodiments thereof.

[0156] A processor 12 may include circuitry, or be constituted as circuitry or circuitries, the circuitry or circuitries being configured to perform phases of methods in accordance with one or more example embodiments described herein. 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 user equipment, 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. 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 portionof 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.

[0157] The memory 14 may be implemented using any suitable data storage technology. The memory may include a database for storing data. The memory 14 may be at least in part external to apparatus 10 but accessible to apparatus 10.

[0158] The instructions 15 may be included in a computer readable medium or a non-transitory computer readable medium. A term non-transitory, as used herein, is a limitation of the medium itself (e.g., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., random access memory, RAM, vs. read only memory, ROM).

[0159] For example, the apparatus 10 may be a terminal device, such as the UE of FIGs.1-6. As another example, the apparatus may be included in such a terminal device, e.g., as a chipset configured to control the terminal device. The apparatus 10 may be caused or configured to perform one or more operations of the UE illustrated in the signaling diagrams of FIG. 6 and / or one or more embodiments described herein.

[0160] As another example, the apparatus 10 is a network node (e.g., a RAN node) of FIGs. 1-6. In another embodiment, the apparatus is included in such a network node, e.g., as a chipset configured to control the network node. The apparatus 10 may be caused or configured to perform one or more operations of the network node illustrated in the signaling diagrams of FIG. 6 and / or one or more embodiments described herein.

[0161] The apparatus may include one or more entities of any of protocol layers, such as a MAC entity, an RRC entity, an REC entity, a PDCP entity or a PHY entity. In at least one embodiment, the entity is configured to perform at least operation illustrated in the signaling diagrams of FIG. 6 and / or one or more embodiments described herein.

[0162] In some examples, the apparatus 10 may include a radio interface 16. The radio interface 16 may provide the apparatus 10 with communication capabilities. The radio interface 16 may include a receiver configured to receive information in accordance with at least one cellular or non-cellular standard. The radio interface 16 may include a transmitter configured to transmit information in accordance with at least one cellular or non-cellular standard. The receiver may include more than one receiver. The transmitter may include more than one transmitter. The radio interface 16 may include a transceiver configured to receive and transmit information in accordance with at least one cellular or non-cellular standard.

[0163] The term “transmit,” and the like, as used herein, refers to outputting of a signal via an interface providing a wired or wireless connection between two or more devices (or two or more components of a single device). In some examples, the signal is a radio frequency signal output, for example, via the radio interface 16. In some other examples, the signal is an electrical signal (or optical signal) output, for example, via the processor 12.

[0164] In some examples, the apparatus 10 may include a user interface 18 including, for example, at least one of a keypad, a microphone, a touch display, a display, a speaker, etc. The user interface 18 may be used to control the apparatus by the user. The user interface 18 may be external to the apparatus 10. For example, the apparatus 10 may be connected to another device, such as a computer, either via wireless or wired connection, and the apparatus 10 is controlled by the user via the computer.

[0165] In at least one embodiment, at least some of the processes described herein may be carried out by an apparatus including means for carrying out at least some of the described processes. Means for performing methods as disclosed herein may include software and / or hardware components of the apparatus 10. For example, the at least one processor 12, the memory 14, and the computer program code form means for carrying out the method or methods as disclosed herein, and one or more embodiments thereof. The term “means” as used in the description and in the claims may refer to one or more individual elements configured to perform the corresponding recited functionality or functionalities, or it may refer to several elements that perform such functionality or functionalities. Furthermore, several functionalities recited in the claims may be performed by the same individual means or the same combination of means. For example, performing such functionality or functionalities may be caused in an apparatus by a processor that executes instructions stored in a memory of the apparatus.

[0166] FIG. 8 illustrates an example flowchart 800 of a method to which one or more examples disclosed herein may be applied. The method may be computer-implemented. The method may be performed by a UE, such as a UE illustrated by and described with reference to FIGs. 1-6. In some examples, the UE may be an example of an apparatus 10 illustrated by and described with reference to FIG. 7.

[0167] As shown in FIG. 8, the UE at block 810 receives a downlink control signaling that indicates a plurality of configurations for a plurality of event triggered CSI reports, wherein the plurality of configurations is associated with a first uplink channel. For example, the UE may include the means (e.g., a processor 12, a memory 14, a radio interface 16) for receiving downlink control signaling that indicates a plurality of configurations for a pluralityof event triggered CSI) reports, wherein the plurality of configurations is associated with a first uplink channel.

[0168] As shown in FIG. 8, the UE at block 812 determines that one or more conditions associated with a subset of the plurality of configurations are satisfied. For example, the UE may include the means (e.g., a processor 12, a memory 14, a radio interface 16) for determining that one or more conditions associated with a subset of the plurality of configurations are satisfied.

[0169] As shown in FIG. 8, the UE at block 814 transmits at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on the one or more conditions being satisfied. For example, the UE may include the means (e.g., a processor 12, a memory 14, a radio interface 16) for transmitting at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on the one or more conditions being satisfied.

[0170] FIG. 9 illustrates an example flowchart 900 of a method to which one or more examples disclosed herein may be applied. The method may be computer-implemented. The method may be performed by a network node, such as a network node illustrated by and described with reference to FIGs. 1-6. In some examples, the network node may be an example of an apparatus 10 illustrated by and described with reference to FIG. 7.

[0171] As shown in FIG. 9, the network node at block 910 transmits downlink control signaling that indicates a plurality of configurations for a plurality of event triggered CSI reports, wherein the plurality of configurations is associated with a first uplink channel. For example, the network node may include the means (e.g., a processor 12, a memory 14, a radio interface 16) for transmitting downlink control signaling that indicates a plurality of configurations for a plurality of event triggered CSI reports, wherein the plurality of configurations is associated with a first uplink channel.

[0172] As shown in FIG. 9, the network node at block 912 receives at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on one or more conditions associated with a subset of the plurality of configurations being satisfied. For example, the network node may include the means (e.g., a processor 12, a memory 14, a radio interface 16) for receiving at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on one or more conditions associated with a subset of the plurality of configurations being satisfied.

[0173] Even though the present disclosure has been described above with reference to an example according to the accompanying drawings, it is clear that the present disclosure is notrestricted thereto but can be modified in several ways within the scope of the appended claims. Therefore, all words and expressions should be interpreted broadly, and they are intended to illustrate, not to restrict, the embodiment. It will be obvious to a person skilled in the art that, as technology advances, the inventive concept can be implemented in various ways. Further, it is clear to a person skilled in the art that the described embodiments may, but are not required to, be combined with other embodiments in various ways.

Claims

What is claimed is:

1. An apparatus, comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to:receive downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel;determine that one or more conditions associated with a subset of the plurality of configurations are satisfied; andtransmit at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on the one or more conditions being satisfied.

2. The apparatus of claim 1, wherein the instructions, when executed by the at least one processor, cause the apparatus at least to:select the at least two event triggered CSI reports from among the plurality based at least in part on at least one priority associated with the plurality of configurations.

3. The apparatus of claim 2, wherein the instructions, when executed by the at least one processor, cause the apparatus at least to:receive second control signaling that indicates the at least one priority associated with the plurality of configurations.

4. The apparatus of claim 3, wherein the second control signaling indicates the at least one priority by indicating one of the following:an order by which to prioritize at least one configuration of the plurality of configurations,that at least one configuration of the plurality of configurations has the highest priority among the plurality of configurations, orthat at least one configuration of the plurality of configurations has the lowest priority among the plurality of configurations.

5. The apparatus of claim 1, wherein the instructions, when executed by the at least one processor, cause the apparatus at least to:select the at least two event triggered CSI reports from among the plurality of event triggered CSI reports based at least in part on at least one triggering time associated with the plurality of configurations.

6. The apparatus of claims 5, wherein the subset of the plurality of configurations is associated with a subset of triggering times, and wherein the at least one triggering time comprises at least the first or the last triggering time among the subset of triggering times.

7. The apparatus of claim 1, wherein the instructions, when executed by the at least one processor, cause the apparatus at least to:select the at least two event triggered CSI reports from among the plurality of event triggered CSI reports based at least in part on at least one identifier associated with the plurality of configurations.

8. The apparatus of claim 7, wherein the subset of the plurality of configurations is associated with a subset of identifiers, and wherein the at least one identifier comprises at least the lowest or the highest identifier among the subset of identifiers.

9. The apparatus of claim 1, wherein the instructions, when executed by the at least one processor, cause the apparatus at least to:select the at least two event triggered CSI reports from among the plurality of event triggered CSI reports based at least in part on at least one payload size associated with the plurality of configurations.

10. The apparatus of claim 9, wherein the subset of the plurality of configurations is associated with a subset of payload sizes, and wherein the at least one payload size comprises at least the smallest or the largest payload size among the subset of payload sizes.

11. The apparatus of claim 9, wherein selection of the at least two event triggered CSI reports is based at least in part on a combined payload size associated with at least two configurations of the subset of the plurality of configurations.

12. The apparatus of any one of claims 1 through 11, wherein the plurality of configurations is associated with one or more types of events.

13. The apparatus of any one of claims 1 through 12, wherein:the first uplink channel comprises a first physical uplink control channel (PUCCH) resource allocation, andthe second uplink channel comprises a second PUCCH resource allocation or a physical uplink shared channel (PUSCH) allocation.

14. An apparatus, comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to:transmit downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; andreceive at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on one or more conditions associated with a subset of the plurality of configurations being satisfied.

15. The apparatus of claim 14, wherein the at least two event triggered CSI reports are based at least in part on at least one priority associated with the plurality of configurations.

16. The apparatus of claim 15, wherein the instructions, when executed by the at least one processor, cause the apparatus at least to:transmit second control signaling that indicates the at least one priority associated with the plurality of configurations.

17. The apparatus of claim 16, wherein the second control signaling indicates the at least one priority by indicating one of the following:an order by which to prioritize at least one configuration of the plurality of configurations,that at least one configuration of the plurality of configurations has the highestpriority among the plurality of configurations, orthat at least one configuration of the plurality of configurations has the lowest priority among the plurality of configurations.

18. The apparatus of claim 14, wherein the at least two event triggered CSI reports are based at least in part on at least one triggering time associated with the plurality of configurations.

19. The apparatus of claims 18, wherein the subset of the plurality of configurations is associated with a subset of triggering times, and wherein the at least one triggering time comprises at least the first or the last triggering time among the subset of triggering times.

20. The apparatus of claim 14, wherein the at least two event triggered CSI reports are based at least in part on at least one identifier associated with the plurality of configurations.

21. The apparatus of claims 20, wherein the subset of the plurality of configurations is associated with a subset of identifiers, and wherein the at least one identifier comprises at least the lowest or the highest identifier among the subset of identifiers.

22. The apparatus of claim 14, wherein the at least two event triggered CSI reports are based at least in part on at least one payload size associated with the plurality of configurations.

23. The apparatus of claim 22, wherein the subset of the plurality of configurations is associated with a subset of payload sizes, and wherein the at least one payload size comprises at least the smallest or the largest payload size among the subset of pay load sizes.

24. A method, comprising:receiving downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel;determining that one or more conditions associated with a subset of the plurality of configurations are satisfied; andtransmitting at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on the one or more conditions being satisfied.

25. A method, comprising:transmitting downlink control signaling that indicates a plurality of configurations for a plurality of event triggered channel state information (CSI) reports, wherein the plurality of configurations is associated with a first uplink channel; andreceiving at least two of the plurality of event triggered CSI reports via a second uplink channel based at least in part on one or more conditions associated with a subset of the plurality of configurations being satisfied.

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