Support of UE initiated beam management
UE-initiated beam management through event-triggered reporting with Layer-1 events optimizes beam reporting in wireless systems, reducing inefficiencies and enhancing communication quality by dynamically adjusting beams based on signal quality.
Patent Information
- Application Number
- PCT/CN2025/085459
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-12
AI Technical Summary
Existing wireless communication systems face challenges in efficiently managing beams due to frequent periodic or aperiodic beam reports, particularly in UE-initiated scenarios, where event and beam reporting are not adequately addressed, leading to inefficiencies in resource utilization and communication quality.
The system enables UE-initiated beam management through event-triggered reporting, utilizing Layer-1 events such as Event-1 and Event-2, where the UE determines reference signal transmission occasions for computing Layer-1 reference signal received power (L1-RSRP) and transmits beam reports to the network entity, allowing for dynamic resource allocation and beam adjustment based on quality thresholds.
This approach reduces unnecessary beam reporting, optimizes resource usage, and enhances communication quality by allowing the UE to proactively manage beam changes based on real-time signal quality, improving network efficiency and user experience.
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Figure CN2025085459_12022026_PF_FP_ABST
Abstract
Description
SUPPORT OF UE INITIATED BEAM MANAGEMENTTECHNICAL FIELD
[0001] The present disclosure relates to wireless communications, and more specifically to a user equipment (UE) , a network entity, a processor for wireless communication, methods, and computer readable media for supporting UE initiated beam management.BACKGROUND
[0002] A wireless communications system may include one or multiple network communication devices, such as base stations, which may be otherwise known as an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. Each network communication devices, such as a base station may support wireless communications for one or multiple user communication devices, which may be otherwise known as user equipment (UE) , or other suitable terminology. The wireless communications system may support wireless communications with one or multiple user communication devices by utilizing resources of the wireless communication system (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) . Additionally, the wireless communications system may support wireless communications across various radio access technologies including third generation (3G) radio access technology, fourth generation (4G) radio access technology, fifth generation (5G) radio access technology, among other suitable radio access technologies beyond 5G (e.g., sixth generation (6G) ) .SUMMARY
[0003] The present disclosure relates to a user equipment (UE) , a network entity, a processor for wireless communication, methods, and computer readable media for supporting UE initiated beam management. For UE initiated beam management, some events have been agreed by 3GPP: Event-1 is defined as “Quality of the current beam is worse than a certain threshold; ” Event-2 is defined as “Quality of at least one new beam, such as L1-RSRP, becomes a threshold value better than the current beam; ” and Event-7 is defined as “Quality of at least one new beam, such as L1-RSRP, becomes a threshold value better than the RS derived from the activated TCI state with the Q-th best quality, where Q is RRC configured with subjective to UE capability signalling. ”
[0004] In a first aspect, there is provided a UE. The UE comprises: a processor; and a transceiver coupled to the processor, wherein the processor is configured to: receive, from a network entity, one or more channel state information (CSI) report configurations for event triggered beam reporting; determine at least one reference signal (RS) transmission occasion for computing Layer-1 reference signal received power (L1-RSRP) ; and transmit, to the network entity, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations.
[0005] In a second aspect, there is provided a network entity. The network entity comprises: a processor; and a transceiver coupled to the processor, wherein the processor is configured to: transmit, to a user equipment (UE) , one or more channel state information (CSI) report configurations for event triggered beam report; transmit, to the UE, a radio resource control (RRC) signalling to enable early transmission configuration indicator (TCI) state application; and receive, from the UE, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations.
[0006] In a third aspect, there is provided a processor for wireless communication. The processor comprises: at least one memory; and a controller coupled with the at least one memory and configured to cause the controller to: receive, from a network entity, one or more channel state information (CSI) report configurations for event triggered beam reporting; determine at least one reference signal (RS) transmission occasion for computing Layer-1 reference signal received power (L1-RSRP) ; and transmit, to the network entity, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations.
[0007] In a fourth aspect, there is provided a method performed by a user equipment (UE) , the method comprising: receiving, from a network entity, one or more channel state information (CSI) report configurations for event triggered beam reporting; determining at least one reference signal (RS) transmission occasion for computing Layer-1 reference signal received power (L1-RSRP) ; and transmit, to the network entity, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations.
[0008] In an fifth aspect, there is provided a method performed by a network entity, the method comprising: transmitting, to a user equipment (UE) , one or more channel state information (CSI) report configurations for event triggered beam reporting; transmitting, to the UE, a radio resource control (RRC) signalling to enable early transmission configuration indicator (TCI) state application; and receiving, from the UE, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations.
[0009] In a sixth aspect, there is provided a computer readable medium having instructions stored thereon, the instructions, when executed by a processor of an apparatus, causing the apparatus to perform the method according to the fourth or the fifth aspect of the disclosure.
[0010] In some implementations of the methods, the UE and the network entity described herein, the at least one RS resource transmission occasion comprises at least one of: the most recent RS resource transmission occasion no later than a CSI reference resource determined by a first physical uplink control channel (PUCCH) transmission requesting or notifying the beam report; the most recent RS resource transmission occasion no later than a CSI reference resource determined by a second physical uplink shared channel (PUSCH) transmission carrying the beam report; the last RS resource transmission occasion within a time window which triggers the beam report if the time window is configured; or the last RS resource transmission occasion within a time window that satisfies an event configured for the one or more CSI report configuration, wherein the CSI reference resource is a valid downlink (DL) slot which is K slot before the slot for the PUCCH transmission or the PUSCH transmission, where K includes a fixed value or a value determined according to UE capability.
[0011] In some implementations of the methods, the UE and the network entity described herein, multiple CSI report configurations, among the one or more CSI report configurations, are associated with a first PUCCH resource for triggering beam report, the UE may determining that multiple events corresponding to the multiple CSI report configurations occur; and trigger, on the first PUCCH resource, the beam report for one of the multiple CSI report configurations with a highest priority.
[0012] In some implementations of the methods, the UE and the network entity described herein, the UE may further determine priorities of the multiple CSI report configurations based on at least one of the following rules: a CSI report configuration with a lower CSI report configuration identity (ID) has a higher priority; a CSI report configuration with a smaller component carrier (CC) index for a new beam set has a higher priority; a CSI report configuration with a smaller CC index applying an indicated transmission configuration indicator (TCI) state has a higher priority; or a CSI report configuration with smallest priority value PriiCSI (y, k, c, s) specified in 3GPP Clause 5.2.5 in TS38.214 V18.3.0 by assuming y=0 for the CSI report configuration for event triggered beam report.
[0013] In some implementations of the methods, the UE and the network entity described herein, the UE may further store, after transmitting the beam report, quasi-colocation (QCL) properties of a synchronization signal / PBCH block (SSB) associated with at least one new beam.
[0014] In some implementations of the methods, the UE and the network entity described herein, the UE may further receive, from the network entity, a radio resource control (RRC) signalling to enable early TCI state application.
[0015] In some implementations of the methods, the UE and the network entity described herein, to store the QCL properties of the SSB associated with at least one of the one or more new beams, the UE may store at least one of the following: the QCL properties of the SSB associated with a new beam RS with the reported largest L1-RSRP; the QCL properties of the SSB associated with a new beam RS with L1-RSRP larger than a threshold, wherein the threshold is configured by the network entity; the QCL properties of the SSB associated with one or more new beam RSs which satisfy an Event-2 condition or an Event-7 condition; or the QCL properties of the SSB associated with all reported new beam RSs.
[0016] In some implementations of the methods, the UE and the network entity described herein, the UE may further receive downlink control information (DCI) indicating a joint or downlink (DL) TCI state associated with the new beam RS that the UE has stored the QCL properties of the associated SSB; and apply the indicated TCI state by assuming beam applying time equal to zero.
[0017] In some implementations of the methods, the UE and the network entity described herein, the UE may further receive a medium access control -control element (MAC-CE) activating one or more joint or DL TCI states associated with the new beam RS that the UE has stored the QCL properties of the associated SSB; and activate the one or more joint or DL TCI states without additional SSB reception.
[0018] In some implementations of the methods, the UE and the network entity described herein, Event-2 is configured for a CSI report configuration configured with a time window and a number of event instances for beam report, and the UE may further determine multiple counters, each of which corresponding to a new beam RS resource; reset all of the multiple counters for one or more of the following conditions: after sending a hybrid automatic repeat request acknowledgement (HARQ-ACK) for signalling indicating a unified TCI state activation or deactivation; after sending a HARQ-ACK for a physical downlink control channel (PDCCH) indicating a TCI state different from a current TCI state; after receiving a PDCCH addressed to a cell-radio network temporary identifier (C-RNTI) indicating uplink grant for a new transmission for a HARQ process used for a transmission of a configured grant (CG) -PUSCH, wherein the CG-PUSCH contains the beam report in response to a PUCCH indicating a beam report; a serving cell (SCell) in which RS resources for new beams are configured is deactivated; or a serving cell in which the current TCI state is applied.
[0019] In some implementations of the methods, the UE and the network entity described herein, the UE may further reset a counter for a new beam RS resource, after receiving a PDCCH addressed to a C-RNTI indicating uplink grant for a new transmission is received for a HARQ process used for a transmission of a CG-PUSCH, wherein the CG-PUSCH contains the beam report in response to a PUCCH indicating a beam report.
[0020] In some implementations of the methods, the UE and the network entity described herein, an RS resource for a current beam corresponding to an indicated TCI state and RS resources for new beams are in different cells when Event-1 is configured for a CSI report configuration.
[0021] In some implementations of the methods, the UE and the network entity described herein, the UE may further receive, from the network entity, an RRC parameter indicating the serving cell for which a current TCI state is applied; or determine, in absence of the RRC parameter, that the current TCI state is the one applied to the serving cell which configures the second CSI report configuration or the cell which configures RS resources for the new beams.
[0022] In some implementations of the methods, the UE and the network entity described herein, Event-1 is configured for a CSI report configuration, and the UE may further determine that there is at least one Event-1 instance between two adjacent first PUCCH resource transmission occasions for triggering the beam report; and send a first PUCCH resource in the latter of the two adjacent first PUCCH transmission occasions.
[0023] In some implementations of the methods, the UE and the network entity described herein, Event-1 is configured for a CSI report configuration, and the UE may further report the number of Event-1 instances between the latest two first PUCCH resource transmission occasions in the corresponding beam report.
[0024] In some implementations of the methods, the UE and the network entity described herein, Event-7 is configured for a CSI report configuration, and the UE may further determine that there is at least one Event-7 instance within a time window before a first PUCCH resource transmission occasion for triggering the beam report, wherein an end time of the time window is later than a last PUCCH transmission occasion and no later than the first PUCCH transmission occasion; and send a first PUCCH resource in the first PUCCH transmission occasion.
[0025] In some implementations of the methods, the UE and the network entity described herein, Event-7 is configured for a CSI report configuration, and the UE may further include L1-RSRP corresponding to all activated joint or DL TCI states in the corresponding beam report.
[0026] In some implementations of the methods, the UE and the network entity described herein, an RS resource for a current beam corresponding to an indicated TCI state and RS resources for new beams are in different cells when Event-1 is configured for a CSI report configuration
[0027] In some implementations of the methods, the UE and the network entity described herein, the network entity may transmit, to the UE, an RRC parameter indicating the serving cell for which a current TCI state is applied.
[0028] In some implementations of the methods, the UE and the network entity described herein, Event-1 is configured for a CSI report configuration, and the beam report includes the number of Event-1 instances between two adjacent first PUCCH resource transmission occasions for triggering the beam report.
[0029] In some implementations of the methods, the UE and the network entity described herein, Event-7 is configured for a CSI report configuration, and the beam report includes Layer-1 reference signal received power (L1-RSRP) corresponding to all activated joint or DL TCI states.BRIEF DESCRIPTION OF THE DRAWINGS
[0030] FIG. 1 illustrates an example of a wireless communications system in which some embodiments of the present disclosure can be implemented.
[0031] FIG. 2 illustrates a process flow for supporting UE initiated beam management in accordance with some example embodiments of the present disclosure.
[0032] FIG. 3 illustrates a schematic diagram of examples of reference signal (RS) transmission occasions for computing L1-RSRP in accordance with some example embodiments of the present disclosure.
[0033] FIG. 4 illustrates a schematic diagram of cross-component carrier (CC) beam measurement for UE initiated beam management in accordance with some example embodiments of the present disclosure.
[0034] FIG. 5 illustrates an example of a device that is suitable for implementing some embodiments of the present disclosure.
[0035] FIG. 6 illustrates an example of a processor that is suitable for implementing some embodiments of the present disclosure.
[0036] FIG. 7 illustrates a flowchart of a method that performed by a UE in accordance with aspects of the present disclosure.
[0037] FIG. 8 illustrates a flowchart of a method that performed by a network entity in accordance with aspects of the present disclosure.
[0038] Throughout the drawings, the same or similar reference numerals represent the same or similar elements.DETAILED DESCRIPTION
[0039] Principles of the present disclosure will now be described with reference to some embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. The disclosure described herein can be implemented in various manners other than the ones described below. In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
[0040] References in the present disclosure to “one embodiment, ” “an example embodiment, ” “an embodiment, ” “some embodiments, ” and the like indicate that the embodiment (s) described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment (s) . Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
[0041] It shall be understood that although the terms “first” and “second” or 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 element. For example, a first element could also be termed as a second element, and similarly, a second element could also be termed as a first element, without departing from the scope of embodiments. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms. In some examples, values, procedures, or apparatuses are referred to as “best, ” “lowest, ” “highest, ” “minimum, ” “maximum, ” or the like. It will be appreciated that such descriptions are intended to indicate that a selection among many used functional alternatives can be made, and such selections need not be better, smaller, higher, or otherwise preferable to other selections.
[0042] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of embodiments. As used herein, the singular forms “a, ” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises, ” “comprising, ” “has, ” “having, ” “includes” and / or “including, ” when used herein, specify the presence of stated features, elements, components and / or the like, but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof. For example, the term “includes” and its variants are to be read as open terms that mean “includes, but is not limited to. ” The term “based on” is to be read as “based at least in part on. ” The term “one embodiment” and “an embodiment” are to be read as “at least one embodiment. ” The term “another embodiment” is to be read as “at least one other embodiment. ” The use of an expression such as “A and / or B” can mean either “only A” or “only B” or “both A and B. ” Other definitions, explicit and implicit, may be included below.
[0043] UE initiated beam management (UEIBM) is being specified in Rel-19 to avoid the frequent periodic or aperiodic beam report. A UE can initiate a beam report procedure based on one or more specified Layer-1 (L1) events. When the condition corresponding to an event is satisfied, the UE sends a message in a first transmission, e.g., physical uplink control channel PUCCH, to request uplink (UL) resources for the subsequent beam report, or to notify the beam report in a pre-configured second transmission.
[0044] Only gNB controlled beam management including periodic, semi-persistent and aperiodic beam measurement and beam report are specified in Rel-18, where the time instance and the resource for the beam report are configured / activated / triggered by the gNB. Event triggered measurement report is specified in Rel-15 for the mobility, but the event and the beam report are based on Layer 3.
[0045] Two modes (Mode A and Mode B) are agreed for UEIBM, where Mode A is based on dynamic scheduling uplink control information (UCI) by gNB, and Mode B is based on UCI in pre-configured resource (s) .
[0046] For Mode A, at Step 1: UE transmits a first PUCCH (one-bit / multi-bit) to request a resource for a second UL channel to carry beam report; at Step 2: UE detects the DCI format to indicate a resource for a second UL channel to carry beam report; and at Step 3, beam report is transmitted in second UL channel.
[0047] For Mode B, at Step 1, UE transmits a first PUCCH (one-bit / multi-bit) notifying a second UL channel to carry beam report; at Step 2, UE transmits the beam report in the second UL channel. The notification in Step1 is in a separate reporting instance from the beam report in Step 2. Only one periodic PUCCH resource for the first channel and only one pre-configured resource for second UL channel can be associated with the CSI report configuration for UE-initiated / event-driven beam reporting.
[0048] It was agreed that Event-2 is defined as “Quality of at least one new beam, such as L1-RSRP, becomes a threshold value better than the current beam. ” On UE-initiated / event-driven beam reporting, regarding Event-2, “current beam” is a beam corresponding to the indicated transmission configuration indicator (TCI) state.
[0049] It was also agreed that, on UE-initiated / event-driven beam reporting, regarding trigger events, besides for Event-2, Event-1 and Event-7 are both supported. Event-1 is defined as “Quality of the current beam is worse than a certain threshold. ” Event-7 is defined as “Quality of at least one new beam, such as L1-RSRP, becomes a threshold value better than the RS derived from the activated TCI state with the Q-th best quality, where Q is RRC configured with subjective to UE capability signalling. For Event-7, once quality 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, UE initiated beam report occurs.
[0050] However, some issues related to the UE initiated beam management need to be further studied. Therefore, embodiments of the disclosure target the remaining issues to support UE initiated beam management.
[0051] Aspects of the present disclosure are described in the context of a wireless communications system. FIG. 1 illustrates an example of a wireless communications system 100 in which some embodiments of the present disclosure can be implemented. The wireless communications system 100 may include one or more network entities 102 (also referred to as network equipment (NE) ) , one or more UEs 104, a core network 106, and a packet data network 108. The wireless communications system 100 may support various radio access technologies. In some implementations, the wireless communications system 100 may be a 4G network, such as an LTE network or an LTE-Advanced (LTE-A) network. In some other implementations, the wireless communications system 100 may be a 5G network, such as an NR network. In other implementations, the wireless communications system 100 may be a combination of a 4G network and a 5G network, or other suitable radio access technology including Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20. The wireless communications system 100 may support radio access technologies beyond 5G. Additionally, the wireless communications system 100 may support technologies, such as time division multiple access (TDMA) , frequency division multiple access (FDMA) , or code division multiple access (CDMA) , etc.
[0052] The one or more network entities 102 may be dispersed throughout a geographic region to form the wireless communications system 100. One or more of the network entities 102 described herein may be or include or may be referred to as a network node, a base station, a network element, a radio access network (RAN) , a base transceiver station, an access point, a NodeB, an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. A network entity 102 and a UE 104 may communicate via a communication link 110, which may be a wireless or wired connection. For example, a network entity 102 and a UE 104 may perform wireless communication (e.g., receive signalling, transmit signalling) over a Uu interface. In a 3GPP non-terrestrial network (NTN) , a network entity 102 in form of a satellite can directly communicate to UE 104 using NR / LTE Uu interface. The satellite may be a transparent satellite or a regenerative satellite. For NTN with a transparent satellite, a base station on earth may communicate with a UE via the satellite. For NTN with a regenerative satellite, the base station may be on board and directly communicate with the UE.
[0053] A network entity 102 may provide a geographic coverage area 112 for which the network entity 102 may support services (e.g., voice, video, packet data, messaging, broadcast, etc. ) for one or more UEs 104 within the geographic coverage area 112. For example, a network entity 102 and a UE 104 may support wireless communication of signals related to services (e.g., voice, video, packet data, messaging, broadcast, etc. ) according to one or multiple radio access technologies. In some implementations, a network entity 102 may be moveable, for example, a satellite associated with a non-terrestrial network. In some implementations, different geographic coverage areas 112 associated with the same or different radio access technologies may overlap, but the different geographic coverage areas 112 may be associated with different network entities 102. Information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0054] The one or more UEs 104 may be dispersed throughout a geographic region of the wireless communications system 100. A UE 104 may include or may be referred to as a mobile device, a wireless device, a remote device, a remote unit, a handheld device, or a subscriber device, or some other suitable terminology. In some implementations, the UE 104 may be referred to as a unit, a station, a terminal, or a client, among other examples. Additionally, or alternatively, the UE 104 may be referred to as an Internet-of-Things (IoT) device, an Internet-of-Everything (IoE) device, or machine-type communication (MTC) device, among other examples. In some implementations, a UE 104 may be stationary in the wireless communications system 100. In some other implementations, a UE 104 may be mobile in the wireless communications system 100.
[0055] The one or more UEs 104 may be devices in different forms or having different capabilities. Some examples of UEs 104 are illustrated in FIG. 1. A UE 104 may be capable of communicating with various types of devices, such as the network entities 102, other UEs 104, or network equipment (e.g., the core network 106, the packet data network 108, a relay device, an integrated access and backhaul (IAB) node, or another network equipment) , as shown in FIG. 1. Additionally, or alternatively, a UE 104 may support communication with other network entities 102 or UEs 104, which may act as relays in the wireless communications system 100.
[0056] A UE 104 may also be able to support wireless communication directly with other UEs 104 over a communication link 114. For example, a UE 104 may support wireless communication directly with another UE 104 over a device-to-device (D2D) communication link. In some implementations, such as vehicle-to-vehicle (V2V) deployments, vehicle-to-everything (V2X) deployments, or cellular-V2X deployments, the communication link 114 may be referred to as a sidelink. For example, a UE 104 may support wireless communication directly with another UE 104 over a PC5 interface.
[0057] A network entity 102 may support communications with the core network 106, or with another network entity 102, or both. For example, a network entity 102 may interface with the core network 106 through one or more backhaul links 116 (e.g., via an S1, N2, N2, or another network interface) . The network entities 102 may communicate with each other over the backhaul links 116 (e.g., via an X2, Xn, or another network interface) . In some implementations, the network entities 102 may communicate with each other directly (e.g., between the network entities 102) . In some other implementations, the network entities 102 may communicate with each other or indirectly (e.g., via the core network 106) . In some implementations, one or more network entities 102 may include subcomponents, such as an access network entity, which may be an example of an access node controller (ANC) . An ANC may communicate with the one or more UEs 104 through one or more other access network transmission entities, which may be referred to as a radio heads, smart radio heads, or transmission-reception points (TRPs) . As used herein, the term “TRP” refers to a transmission-reception point having an antenna array (with one or more antenna elements) at the network side located at a specific geographical location, which may be used for transmitting and receiving signals to / from the terminal device. In embodiment of the present disclosure, a TRP may refer to Macro Cell, micro cell, an RRH, a relay, a femto node, a pico node, etc.
[0058] In some implementations, a network entity 102 may be configured in a disaggregated architecture, which may be configured to utilize a protocol stack physically or logically distributed among two or more network entities 102, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance) , or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN) ) . For example, a network entity 102 may include one or more of a central unit (CU) , a distributed unit (DU) , a radio unit (RU) , a RAN Intelligent Controller (RIC) (e.g., a Near-Real Time RIC (Near-RT RIC) , a Non-Real Time RIC (Non-RT RIC) ) , a Service Management and Orchestration (SMO) system, or any combination thereof.
[0059] An RU may also be referred to as a radio head, a smart radio head, a remote radio head (RRH) , a remote radio unit (RRU) , or a transmission reception point (TRP) . One or more components of the network entities 102 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 102 may be located in distributed locations (e.g., separate physical locations) . In some implementations, one or more network entities 102 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU) , a virtual DU (VDU) , a virtual RU (VRU) ) .
[0060] Split of functionality between a CU, a DU, and an RU may be flexible and may support different functionalities depending upon which functions (e.g., network layer functions, protocol layer functions, baseband functions, radio frequency functions, and any combinations thereof) are performed at a CU, a DU, or an RU. For example, a functional split of a protocol stack may be employed between a CU and a DU such that the CU may support one or more layers of the protocol stack and the DU may support one or more different layers of the protocol stack. In some implementations, the CU may host upper protocol layer (e.g., a layer 3 (L3) , a layer 2 (L2) ) functionality and signalling (e.g., Radio Resource Control (RRC) , service data adaption protocol (SDAP) , Packet Data Convergence Protocol (PDCP) ) . The CU may be connected to one or more DUs or RUs, and the one or more DUs or RUs may host lower protocol layers, such as a layer 1 (L1) (e.g., physical (PHY) layer) or an L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signalling, and may each be at least partially controlled by the CU 160.
[0061] Additionally, or alternatively, a functional split of the protocol stack may be employed between a DU and an RU such that the DU may support one or more layers of the protocol stack and the RU may support one or more different layers of the protocol stack. The DU may support one or multiple different cells (e.g., via one or more RUs) . In some implementations, a functional split between a CU and a DU, or between a DU and an RU may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU, a DU, or an RU, while other functions of the protocol layer are performed by a different one of the CU, the DU, or the RU) .
[0062] A CU may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU may be connected to one or more DUs via a midhaul communication link (e.g., F1, F1-c, F1-u) , and a DU may be connected to one or more RUs via a fronthaul communication link (e.g., open fronthaul (FH) interface) . In some implementations, a midhaul communication link or a fronthaul communication link may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities 102 that are in communication via such communication links.
[0063] The core network 106 may support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions. The core network 106 may be an evolved packet core (EPC) , or a 5G core (5GC) , which may include a control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management functions (AMF) ) and a user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a Packet Data Network (PDN) gateway (P-GW) , or a user plane function (UPF) ) . In some implementations, the control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g., data bearers, signal bearers, etc. ) for the one or more UEs 104 served by the one or more network entities 102 associated with the core network 106.
[0064] The core network 106 may communicate with the packet data network 108 over one or more backhaul links 116 (e.g., via an S1, N2, N2, or another network interface) . The packet data network 108 may include an application server 118. In some implementations, one or more UEs 104 may communicate with the application server 118. A UE 104 may establish a session (e.g., a protocol data unit (PDU) session, or the like) with the core network 106 via a network entity 102. The core network 106 may route traffic (e.g., control information, data, and the like) between the UE 104 and the application server 118 using the established session (e.g., the established PDU session) . The PDU session may be an example of a logical connection between the UE 104 and the core network 106 (e.g., one or more network functions of the core network 106) .
[0065] In the wireless communications system 100, the network entities 102 and the UEs 104 may use resources of the wireless communications system 100 (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) ) to perform various operations (e.g., wireless communications) . In some implementations, the network entities 102 and the UEs 104 may support different resource structures. For example, the network entities 102 and the UEs 104 may support different frame structures. In some implementations, such as in 4G, the network entities 102 and the UEs 104 may support a single frame structure. In some other implementations, such as in 5G and among other suitable radio access technologies, the network entities 102 and the UEs 104 may support various frame structures (i.e., multiple frame structures) . The network entities 102 and the UEs 104 may support various frame structures based on one or more numerologies.
[0066] One or more numerologies may be supported in the wireless communications system 100, and a numerology may include a subcarrier spacing and a cyclic prefix. A first numerology (e.g., μ=0) may be associated with a first subcarrier spacing (e.g., 15 kHz) and a normal cyclic prefix. In some implementations, the first numerology (e.g., μ=0) associated with the first subcarrier spacing (e.g., 15 kHz) may utilize one slot per subframe. A second numerology (e.g., μ=1) may be associated with a second subcarrier spacing (e.g., 30 kHz) and a normal cyclic prefix. A third numerology (e.g., μ=2) may be associated with a third subcarrier spacing (e.g., 60 kHz) and a normal cyclic prefix or an extended cyclic prefix. A fourth numerology (e.g., μ=3) may be associated with a fourth subcarrier spacing (e.g., 120 kHz) and a normal cyclic prefix. A fifth numerology (e.g., μ=4) may be associated with a fifth subcarrier spacing (e.g., 240 kHz) and a normal cyclic prefix.
[0067] A time interval of a resource (e.g., a communication resource) may be organized according to frames (also referred to as radio frames) . Each frame may have a duration, for example, a 10 millisecond (ms) duration. In some implementations, each frame may include multiple subframes. For example, each frame may include 10 subframes, and each subframe may have a duration, for example, a 1 ms duration. In some implementations, each frame may have the same duration. In some implementations, each subframe of a frame may have the same duration.
[0068] Additionally or alternatively, a time interval of a resource (e.g., a communication resource) may be organized according to slots. For example, a subframe may include a number (e.g., quantity) of slots. The number of slots in each subframe may also depend on the one or more numerologies supported in the wireless communications system 100. For instance, the first, second, third, fourth, and fifth numerologies (i.e., μ=0, μ=1, μ=2, μ=3, μ=4) associated with respective subcarrier spacings of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz may utilize a single slot per subframe, two slots per subframe, four slots per subframe, eight slots per subframe, and 16 slots per subframe, respectively. Each slot may include a number (e.g., quantity) of symbols (e.g., OFDM symbols) . In some implementations, the number (e.g., quantity) of slots for a subframe may depend on a numerology. For a normal cyclic prefix, a slot may include 14 symbols. For an extended cyclic prefix (e.g., applicable for 60 kHz subcarrier spacing) , a slot may include 12 symbols. The relationship between the number of symbols per slot, the number of slots per subframe, and the number of slots per frame for a normal cyclic prefix and an extended cyclic prefix may depend on a numerology. It should be understood that reference to a first numerology (e.g., μ=0) associated with a first subcarrier spacing (e.g., 15 kHz) may be used interchangeably between subframes and slots.
[0069] In the wireless communications system 100, an electromagnetic (EM) spectrum may be split, based on frequency or wavelength, into various classes, frequency bands, frequency channels, etc. By way of example, the wireless communications system 100 may support one or multiple operating frequency bands, such as frequency range designations FR1 (410 MHz –7.125 GHz) , FR2 (24.25 GHz –52.6 GHz) , FR3 (7.125 GHz –24.25 GHz) , FR4 (52.6 GHz –114.25 GHz) , FR4a or FR4-1 (52.6 GHz –71 GHz) , and FR5 (114.25 GHz –300 GHz) . In some implementations, the network entities 102 and the UEs 104 may perform wireless communications over one or more of the operating frequency bands. In some implementations, FR1 may be used by the network entities 102 and the UEs 104, among other equipment or devices for cellular communications traffic (e.g., control information, data) . In some implementations, FR2 may be used by the network entities 102 and the UEs 104, among other equipment or devices for short-range, high data rate capabilities.
[0070] FR1 may be associated with one or multiple numerologies (e.g., at least three numerologies) . For example, FR1 may be associated with a first numerology (e.g., μ=0) , which includes 15 kHz subcarrier spacing; a second numerology (e.g., μ=1) , which includes 30 kHz subcarrier spacing; and a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing. FR2 may be associated with one or multiple numerologies (e.g., at least 2 numerologies) . For example, FR2 may be associated with a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing; and a fourth numerology (e.g., μ=3) , which includes 120 kHz subcarrier spacing.
[0071] FIG. 2 illustrates a process flow 200 for supporting UE initiated beam management in accordance with some example embodiments of the present disclosure. The process flow 200 may involve a UE 201 and a network entity (NW) (e.g. a base station, such as gNB) 202. The process flow 200 may be applied to the wireless communications system 100 with reference to FIG. 1, for example, the UE 201 may be any of UEs 104, and the network entity 202 may be or comprise any of the network entities 102. For example, the network entity 202 may be or include a base station providing a serving cell for the UE 201 and / or base station (s) providing candidate cell (s) . It would be appreciated that the process flow 200 may be applied to other communication scenarios.
[0072] At 210, the network entity 202 transmits, to the UE 201, one or more channel state information (CSI) report configurations 215 for event triggered beam reporting. Correspondingly, at 220, the UE 201 receives the one or more CSI report configurations 215 from the network entity 202. The UE 201 may initiate a beam report procedure when event (s) corresponding to some of the CSI report configuration (s) 215 occur.
[0073] At 230, the network entity 202 transmits, to the UE 201, RRC signalling 235 to enable early TCI state application. Correspondingly, at 240, the UE 201 receives the RRC signalling 235 from the network entity. With the RRC signalling 235, the UE can store quasi-colocation (QCL) properties of the synchronization signal / PBCH block (SSB) associated after sending a beam report.
[0074] At 250, the UE 201 determines at least one reference signal (RS) transmission occasion for computing Layer-1 reference signal received power (L1-RSRP) . Some events for UE initiated beam report may require L1-RSRP as triggering condition for the beam report, and the UE 201 may be configured to report the measured L1-RSRP of some beams in the beam report. In this disclosure, the UE initiated beam report can also be interchangeably referred to as event triggered beam report. There may be multiple potential RS transmission occasions for the UE 201 to derive the L1-RSRP for reporting. Options for the RS transmission occasions that are used for the L1-RSRP calculation will be described in detail with reference to FIG. 3.
[0075] At 260, the UE transmits, to the network entity 202, a beam report 265 indicating one or more new beams for at least one of the one or more CSI report configurations. The beam report 265 may carry the computed L1-RSRP for the reported new beams. Correspondingly, at 270, the network entity 202 receives the beam report 265 from the UE 201.
[0076] Hereafter issues for the beam report based on Event-2 will be described. It would be appreciated that some embodiments are also applicable to different events than Event-2.
[0077] One issue is how to determine the RS resource transmission occasions for the UE to obtain the L1-RSRP for the beam report. FIG. 3 illustrates a schematic diagram of examples of RS transmission occasions for computing L1-RSRP in accordance with some example embodiments of the present disclosure. The examples illustrated in FIG. 3 are applicable for events, such as Event-1, Event-2, Event 7, or others. Based on the RS resource transmission occasions, the UE may derive the channel measurements for computing L1-RSRP.
[0078] In Option 1, the RS resource transmission occasion may be the most recent RS resource transmission occasion no later than a CSI reference resource determined by a second physical uplink shared channel (PUSCH) transmission carrying the beam report. For example, CSI reference resource is a valid downlink (DL) slot that is at least K slots before the slot for the transmission of the PUSCH, where K can be a fixed value or a value determined according to UE capability.
[0079] In Option 2, the RS resource transmission occasion may be the most recent RS resource transmission occasion no later than the CSI reference resource determined by the first PUCCH transmission. For example, CSI reference resource is a valid DL slot that is at least K slots before the slot for the transmission of the PUCCH, where K can be a fixed value or a value determined according to UE capability.
[0080] In Option 3, the RS resource transmission occasion may be the last RS resource transmission occasion within a time window which triggers the beam report if the time window is configured.
[0081] In Option 4, the RS resource transmission occasion may be the last RS resource transmission occasion within a time window that satisfies an event configured for the CSI report configuration (s) for event triggered beam reporting.
[0082] Regarding the triggering event determination for Event-2, the following event evaluation condition can be used: if within a time window (which is configurable) , the number of Event-2 instance (s) for at least one same new beam is greater than or equal to a configurable number M, the UE initiated beam report occurs. Note that such time window may also be applicable to other events, such as Event-1 and Event-7.
[0083] A second issue is conditions to reset the counter (s) for event instances. The UE may determine multiple counters, each of which corresponds to a new beam RS resource. To avoid unnecessary beam report, condition (s) to reset the counters can be specified. In some embodiments, the UE may reset all of the counters after sending a hybrid automatic repeat request acknowledgement (HARQ-ACK) for DL signalling, for example a PDSCH carrying a MAC CE, indicating a unified TCI state activation or deactivation. Additionally or alternatively, the UE may reset all of the counters after sending a HARQ-ACK for a physical downlink control channel (PDCCH) indicating a TCI state different from a current TCI state. Additionally or alternatively, the UE may reset all of the counters after receiving a PDCCH addressed to a cell-radio network temporary identifier (C-RNTI) indicating uplink grant for a new transmission for a HARQ process used for a transmission of a configured grant (CG) -PUSCH, wherein the CG-PUSCH contains the beam report in response to a PUCCH indicating a beam report. Additionally or alternatively, the UE may reset all of the counters, if a serving cell (SCell) in which RS resources for new beams are configured and / or a serving cell in which the current TCI state is applied is deactivated.
[0084] In some embodiments, the UE may reset a counter for a certain new beam RS resource, after it receives a PDCCH addressed to a C-RNTI indicating uplink grant for a new transmission is received for a HARQ process used for a transmission of a CG-PUSCH, wherein the CG-PUSCH contains the beam report in response to a PUCCH indicating a beam report in which the new beam RS resource is reported.
[0085] A third issue is early TCI state activation after the beam report. When the beam report corresponding to Event-2 is reported, the UE expects to update the current beam to the identified new beam which is better than the current beam. Correspondingly, the UE expects to receive a message, e.g., a medium access control -control element (MAC CE) or a downlink control information (DCI) , to indicate the identified new beam as the current beam. To reduce the beam indication / updating latency, the UE can perform early TCI state activation or early beam tracking on the identified beam. Then the corresponding beam application time can be reduced, e.g., the UE may assume that the beam application time is zero.
[0086] The network may can configure the UE to perform early TCI state activation via RRC signalling according to UE capability. After sending the UE initiated beam report corresponding to an event (e.g. Event-2) by the second PUSCH, the UE may store the QCL properties of the SSB associated with the some or all the reported new beam RS (s) .
[0087] In some embodiments, the UE may store the QCL properties of the SSB associated with a new beam RS with the reported largest L1-RSRP. Alternatively, the UE may store the QCL properties of the SSB associated with a new beam RS with L1-RSRP larger than a threshold, wherein the threshold is configured by the network. Alternatively, the UE may only store the QCL properties of the SSB associated with one or more new beam RSs which satisfy an Event-2 condition or an Event-7 condition. Alternatively, the UE may store the QCL properties of the SSB associated with all reported new beam RSs. Which option is used may be configured by the network according to UE capability.
[0088] In this case, the UE assumes that the joint or DL TCI state associated with the one of those new beam RS (s) e.g., the RS with largest L1-RSRP, will be indicated as the current beam for the serving cell. In such case, at the reception of DCI indicating a joint or DL TCI state whose associated SSB is early tracked (i.e., the UE has stored the QCL properties of that SSB) , the UE applies the indicated TCI state by assuming beam applying time equal to zero (beamAppTime=0) . Note that in legacy, the indicated new TCI state is applied from the first slot that is beamAppTime symbols after the UE sending a HARQ-ACK corresponding to the PDCCH indicating the new TCI state.
[0089] With the proposed early TCI state activation, at reception of MAC-CE activating one or more joint or DL TCI states associated with the new beam RS that the UE has stored the QCL properties of the associated SSB, the UE may activate the one or more joint or DL TCI states without additional SSB reception.
[0090] A fourth issue is how to handle the case that one first PUCCH resource is associated with multiple CSI report configuration. In some cases, one PUCCH resource of first PUCCH may be associated with multiple CSI report configurations for UE initiated beam management, but only a single UE initiated beam report is carried in the second PUSCH. If multiple events corresponding to the multiple CSI report configurations occur, the UE shall determine one of them with the highest priority for reporting. Then, the UE triggers, on the first PUCCH resource, the beam report for the CSI report configuration with the highest priority. The priorities of the multiple CSI report configurations can be determined based on one or more rules, or combination thereof.
[0091] In some embodiments, the priority may depend on the CSI report configuration identity (ID) ; for example, a CSI report configuration with a lower CSI report configuration ID has a higher priority.
[0092] In some embodiments, the priority may depend on the CSI report configuration ID and the component carrier (CC) index applying the indicated current beam, where the smaller CC index has a higher priority. For example, if the smallest CC index has multiple CSI report configurations, then the CSI report has lower CSI report configuration ID has higher priority.
[0093] In some embodiments, the priority may depend on the CC index of the new beams and the CC index applying the indicated current beam, where a smaller CC index for new beams has higher priority. For example, if the smallest CC index for new beams has multiple CSI report configurations, then the CSI report configuration with a smaller CC index applying the indicated TCI state has higher priority.
[0094] In some embodiments, the UE may select a CSI report configuration with smallest priority value PriiCSI (y, k, c, s) specified in Clause 5.2.5 in 3GPP TS38.214 V18.3.0 for reporting by assuming y=0 for the CSI report configuration for event triggered beam report.
[0095] FIG. 4 illustrates a schematic diagram of cross-CC beam measurement for UE initiated beam management in accordance with some example embodiments of the present disclosure.
[0096] As illustrated, a joint / DL TCI (transmission configuration indicator) state in a cell (e.g., CC 2 or CC 3) can configure a QCL-TypeD RS configured in another CC (e.g., CC 1) . And the RS resources within the RS resource set for new beam measurement associated with a CSI report configured can be from a CC (e.g., CC 1) different from the CC configure the CSI report configuration (e.g., CC 0) . The QCL-TypeD RS is the beam for the corresponding TCI state. A joint or DL TCI state configured one or two DL RS resources for the UE to obtain the QCL parameters for the DL reception. The DL RS resource configured with QCL-TypeD is the beam RS. If the QCL-TypeD RS is a CSI-RS resource, it can be further associated with an SSB resource.
[0097] For fair comparison, the RS resources for new beams and the RS for the current beam or the RS for the activated TCI state should be in a same CC. If a UE is configured with multiple serving cells, each CC may have indicated and activated TCI state, thus the network needs to indicate the CC for the UE to determine the indicated TCI for measurement.
[0098] For this case, to further reduce the UE complexity, the new beam RS resources corresponding to the multiple CSI report configurations should be configured in the same CC and a same event is expected to be configured for all the CSI report configurations.
[0099] Hereafter issues for the beam report based on Event-1 will be described. It would be appreciated that some embodiments are also applicable to different events than Event-1.
[0100] One issue is RS configuration and determination and the triggering event determination. To support the inter-cell beam management use case, the RS resources for new beam can be in a cell different from the cell contains the current beam RS when Event-1 is configured for a CSI report configuration. In this case, the UE can find new beams in another cells which can be used for the current serving cell when the current beam of the serving cell is worse than a certain threshold. To help the UE to determine the RS for the indicated TCI state, the network may transmit an RRC parameter to the UE to indicate the serving cell on which the indicated TCI state is applied. By default or in absence of the RRC parameter, the UE may assume the serving cell is the cell which configures the CSI report configuration or the cell which configures the RS resources for new beams.
[0101] Regarding to the triggering event determination, if there is at least one Event-1 instance between two adjacent first PUCCH resource (which is configured by RRC parameter firstPUCCHResourceUEI) transmission occasions, the UE may send the first PUCCH resource in the second firstPUCCHResourceUEI transmission occasion, i.e., the latter one. The first PUCCH resource is configured for the UE to send the beam report request or the beam report notification when the condition of the event configured for a CSI report configuration is satisfied. For mode A, the NW may send a DCI scheduling a second PUSCH for the UE to send the beam report in response the first PUCCH. For mode B, the UE may directly send the beam report in a configured PUSCH resource which is associated with the first PUCCH resource.
[0102] A second issue is UL signalling content (s) of L1-RSRP report depending on Event-1. Similar with Event-2, RRC can enable or disable whether current beam is always reported. The UE may report N ≥ 0 beam (s) in the report instance, where N is configured by gNB and the candidate value of ‘N’ may at least comprise {1, 2, 3, 4} . Further, the NW can configure the UE to additionally report the number of Event-1 instances between the latest two first PUCCH resource (which is configured by RRC parameter firstPUCCHResourceUEI) transmission occasions.
[0103] To derive the L1-RSRP, the UE may derive the channel measurements for computing L1-RSRP based on the latest RS resource transmission occasions before the sent first PUCCH resource occasion by considering the CSI computation time. Alternatively, the UE may derive the channel measurements for computing L1-RSRP based the CSI reference resource determined by the slot n for the beam report, i.e. the slot for the second PUSCH transmission for beam report. Alternatively, the UE may derive the channel measurements for computing L1-RSRP based on the latest RS resource transmission occasion before or after the latest Event-1 instance or the latest RS resource transmission occasion that satisfy the event-1 condition.
[0104] Differential L1-RSRP report format is supported. Table 1 below shows an example format. Table 1: Example of Event-1 beam report
[0105] Considering that the current beam may have the highest RSRP, additional information is needed in the beam report to indicate whether current beam may have the highest RSRP. If the current beam has the highest RSRP, then L1-RSRP of the current beam is reported by an absolute L1-RSRP, and differential L1-RSRP #1~#N determined based on the difference between measured L1-RSRP corresponding to the CRI / SSBRI #1~#N and the measured L1-RSRP corresponding to the current beam. CRI or SSBRI k corresponds to the configured (k+1) -th entry of the associated CSI-RS resource or SSB resource in the corresponding resource set for new beam measurement.
[0106] If the current beam does not have the highest RSRP, then L1-RSRP#1 is the largest measured RSRP among reported ones, and an absolute L1-RSRP. Differential L1-RSRP #2~#N / current beam is determined based on the difference between measured L1-RSRP corresponding to the CRI / SSBRI #2~#N / current beam and the measured L1-RSRP corresponding to CRI / SSBRI #1.
[0107] A third issue is early TCI state activation after a beam report. NW can configure the UE to perform early TCI state application via RRC signalling. In this case, another threshold is configured for the UE to determine whether to perform early TCI state update. Specifically, after sending the UE initiated beam report corresponding to Event-1 by the second PUSCH, the UE may store the QCL properties of the SSB associated with the new beam RS (s) with the largest L1-RSRP reported in the beam report, or alternatively, the new beam RS (s) with the L1-RSRP larger than the configured threshold, or alternatively, all the reported new beam RS (s) .
[0108] In this case, the UE assumes that the joint or DL TCI state associated with the one of those new beam RS (s) e.g., the RS with largest L1-RSRP, will be indicated as the current beam for the serving cell. In such case, at the reception of a beam indication with a TCI state whose associated SSB is early tracked, the UE applies the indicated TCI state by assuming beamAppTime=0.
[0109] Hereafter issues for the beam report based on Event-7 will be described. It would be appreciated that some embodiments are also applicable to different events than Event-7.
[0110] One issue is RS configuration and determination and the triggering event determination. Similar with Event-2, the RS resources for new beam (s) and the RS resources corresponding to the activated TCI states are in a same cell. For a CSI report configuration for Event-7, a RRC parameter is needed to indicate the serving cell on which the activated TCI states is applied. By default, if this parameter is not configured, the UE may assume the serving cell is the serving cell which configures the CSI report configuration or the serving cell which configures the RS resources for new beam (s) .
[0111] Regarding the triggering event determination for Event 7, if there is at least M>=1 event-7 instance (s) between two adjacent first PUCCH resource (which is configured by RRC parameter firstPUCCHResourceUEI) transmission occasions, the UE may send the first PUCCH resource in the second firstPUCCHResourceUEI transmission occasion. Alternatively, if there is at least M>=1 Event-7 instance (s) within a window before a first PUCCH transmission occasion, then the UE send the first PUCCH resource. The end time of the window is no later than this PUCCH transmission occasion.
[0112] A second issue is UL signalling content (s) of L1-RSRP report depending on Event-7. To find the Q-th best activated beam, the UE needs to obtain the L1-RSRP of all the activated TCI states. Thus, RRC signalling may enable or disable the UE to always report the L1-RSRP corresponding to all the activated joint or DL TCI states in addition to the N ≥ 1 new beam (s) .
[0113] A third issue is early TCI state activation after beam report. The NW may configure the UE to perform early TCI state application via RRC signalling. After sending the UE initiated beam report corresponding to Event-7 by the second PUSCH, the UE may store the QCL properties of the SSB associated with the new beam reference signals reported in the beam report. In this case, the UE may assume that the TCI state associated with those new beam reference signals will be activated by the serving cell. In such case, at the reception of a subsequent reception of Unified TCI States Activation / Deactivation MAC CE, the UE activates new beam (s) without additional SSB reception.
[0114] FIG. 5 illustrates an example of a device that is suitable for implementing some embodiments of the present disclosure. The device 500 may be an example of a UE 104 or network entity 102 as described herein. The device 500 may support wireless communication with one or more network entities 102, UEs 104, or any combination thereof. The device 500 may include components for bi-directional communications including components for transmitting and receiving communications, such as a processor 502, a memory 504, a transceiver 506, and, optionally, an I / O controller 508. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0115] The processor 502, the memory 504, the transceiver 506, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. For example, the processor 502, the memory 504, the transceiver 506, or various combinations or components thereof may support a method for performing one or more of the operations described herein.
[0116] In some implementations, the processor 502, the memory 504, the transceiver 506, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure. In some implementations, the processor 502 and the memory 504 coupled with the processor 502 may be configured to perform one or more of the functions described herein (e.g., executing, by the processor 502, instructions stored in the memory 504) .
[0117] For example, the processor 502 may support wireless communication at the device 500 in accordance with examples as disclosed herein. The device 500 may be an example of a UE 104. In this case, the processor 502 may be configured to operable to support means for receiving, from a network entity, one or more channel state information (CSI) report configurations for event triggered beam reporting; means for determining at least one reference signal (RS) transmission occasion for computing Layer-1 reference signal received power (L1-RSRP) ; and means for transmitting, to the network entity, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations.
[0118] The device 500 may be an example of a network entity, e.g., a network entity 102. In this case, the processor 502 may be configured to operable to support means for transmitting, to a user equipment (UE) , one or more channel state information (CSI) report configurations for event triggered beam reporting; means for transmitting, to the UE, a radio resource control (RRC) signalling to enable early transmission configuration indicator (TCI) state application; and means for receiving, from the UE, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations.
[0119] The processor 502 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) . In some implementations, the processor 502 may be configured to operate a memory array using a memory controller. In some other implementations, a memory controller may be integrated into the processor 502. The processor 502 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 504) to cause the device 500 to perform various functions of the present disclosure.
[0120] The memory 504 may include random access memory (RAM) and read-only memory (ROM) . The memory 504 may store computer-readable, computer-executable code including instructions that, when executed by the processor 502 cause the device 500 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some implementations, the code may not be directly executable by the processor 502 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some implementations, the memory 504 may include, among other things, a basic I / O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.
[0121] The I / O controller 508 may manage input and output signals for the device 500. The I / O controller 508 may also manage peripherals not integrated into the device 500. In some implementations, the I / O controller 508 may represent a physical connection or port to an external peripheral. In some implementations, the I / O controller 508 may utilize an operating system such as or another known operating system. In some implementations, the I / O controller 508 may be implemented as part of a processor, such as the processor 502. In some implementations, a user may interact with the device 500 via the I / O controller 508 or via hardware components controlled by the I / O controller 508.
[0122] In some implementations, the device 500 may include a single antenna 510. However, in some other implementations, the device 500 may have more than one antenna 510 (i.e., multiple antennas) , including multiple antenna panels or antenna arrays, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 506 may communicate bi-directionally, via the one or more antennas 510, wired, or wireless links as described herein. For example, the transceiver 506 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 506 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 510 for transmission, and to demodulate packets received from the one or more antennas 510. The transceiver 506 may include one or more transmit chains, one or more receive chains, or a combination thereof.
[0123] A transmit chain may be configured to generate and transmit signals (e.g., control information, data, packets) . The transmit chain may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM) , frequency modulation (FM) , or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM) . The transmit chain may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium. The transmit chain may also include one or more antennas 510 for transmitting the amplified signal into the air or wireless medium.
[0124] A receive chain may be configured to receive signals (e.g., control information, data, packets) over a wireless medium. For example, the receive chain may include one or more antennas 510 for receive the signal over the air or wireless medium. The receive chain may include at least one amplifier (e.g., a low-noise amplifier (LNA) ) configured to amplify the received signal. The receive chain may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal. The receive chain may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.
[0125] FIG. 6 illustrates an example of a processor 600 is suitable for implementing some embodiments of the present disclosure. The processor 600 may be an example of a processor configured to perform various operations in accordance with examples as described herein. The processor 600 may include a controller 602 configured to perform various operations in accordance with examples as described herein. The processor 600 may optionally include at least one memory 604. Additionally, or alternatively, the processor 600 may optionally include one or more arithmetic-logic units (ALUs) 606. One or more of these components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0126] The processor 600 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 600) or other memory (e.g., random access memory (RAM) , read-only memory (ROM) , dynamic RAM (DRAM) , synchronous dynamic RAM (SDRAM) , static RAM (SRAM) , ferroelectric RAM (FeRAM) , magnetic RAM (MRAM) , resistive RAM (RRAM) , flash memory, phase change memory (PCM) , and others) .
[0127] The controller 602 may be configured to manage and coordinate various operations (e.g., signalling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 600 to cause the processor 600 to support various operations in accordance with examples as described herein. For example, the controller 602 may operate as a control unit of the processor 600, generating control signals that manage the operation of various components of the processor 600. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.
[0128] The controller 602 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 604 and determine subsequent instruction (s) to be executed to cause the processor 600 to support various operations in accordance with examples as described herein. The controller 602 may be configured to track memory address of instructions associated with the memory 604. The controller 602 may be configured to decode instructions to determine the operation to be performed and the operands involved. For example, the controller 602 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 600 to cause the processor 600 to support various operations in accordance with examples as described herein. Additionally, or alternatively, the controller 602 may be configured to manage flow of data within the processor 600. The controller 602 may be configured to control transfer of data between registers, arithmetic logic units (ALUs) , and other functional units of the processor 600.
[0129] The memory 604 may include one or more caches (e.g., memory local to or included in the processor 600 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementation, the memory 604 may reside within or on a processor chipset (e.g., local to the processor 600) . In some other implementations, the memory 604 may reside external to the processor chipset (e.g., remote to the processor 600) .
[0130] The memory 604 may store computer-readable, computer-executable code including instructions that, when executed by the processor 600, cause the processor 600 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. The controller 602 and / or the processor 600 may be configured to execute computer-readable instructions stored in the memory 604 to cause the processor 600 to perform various functions (e.g., UE initiated beam reporting) . For example, the processor 600 and / or the controller 602 may be coupled with or to the memory 604, the processor 600, the controller 602, and the memory 604 may be configured to perform various functions described herein. In some examples, the processor 600 may include multiple processors and the memory 604 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.
[0131] The one or more ALUs 606 may be configured to support various operations in accordance with examples as described herein. In some implementation, the one or more ALUs 606 may reside within or on a processor chipset (e.g., the processor 600) . In some other implementations, the one or more ALUs 606 may reside external to the processor chipset (e.g., the processor 600) . One or more ALUs 606 may perform one or more computations such as addition, subtraction, multiplication, and division on data. For example, one or more ALUs 606 may receive input operands and an operation code, which determines an operation to be executed. One or more ALUs 606 be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 606 may support logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 606 to handle conditional operations, comparisons, and bitwise operations.
[0132] The processor 600 may support wireless communication in accordance with examples as disclosed herein. The processor 600 may implemented at a UE 104. In this case, the processor 600 may be configured to operable to support means for receiving, from a network entity, one or more channel state information (CSI) report configurations for event triggered beam reporting; means for determining at least one reference signal (RS) transmission occasion for computing Layer-1 reference signal received power (L1-RSRP) ; and means for transmitting, to the network entity, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations.
[0133] The processor 600 may implemented at a network entity 102, e.g. a base station. In this case, the processor 600 may be configured to operable to support means for transmitting, to a user equipment (UE) , one or more channel state information (CSI) report configurations for event triggered beam reporting; means for transmitting, to the UE, a radio resource control (RRC) signalling to enable early transmission configuration indicator (TCI) state application; and means for receiving, from the UE, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations.
[0134] FIG. 7 illustrates a flowchart of a method 700 performed by a UE in accordance with aspects of the present disclosure. The operations of the method 700 may be implemented by a device or its components as described herein. For example, the operations of the method 700 may be performed by a UE 104 as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0135] At 710, the method may include receiving, from a network entity, one or more channel state information (CSI) report configurations for event triggered beam reporting. The operations of 710 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 710 may be performed by a UE 104 as described with reference to FIG. 1.
[0136] At 720, the method may include determining at least one reference signal (RS) transmission occasion for computing Layer-1 reference signal received power (L1-RSRP) . The operations of 720 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 720 may be performed by a UE 104 as described with reference to FIG. 1.
[0137] At 730, the method may include transmitting, to the network entity, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations. The operations of 730 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 730 may be performed by a UE 104 as described with reference to FIG. 1.
[0138] FIG. 8 illustrates a flowchart of a method 800 performed by a network entity in accordance with aspects of the present disclosure. The operations of the method 800 may be implemented by a device or its components as described herein. For example, the operations of the method 800 may be performed by a network entity 102 as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0139] At 810, the method may include transmitting, to a user equipment (UE) , one or more channel state information (CSI) report configurations for event triggered beam reporting. The operations of 810 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 810 may be performed by a network entity 102 as described with reference to FIG. 1.
[0140] At 820, the method may include transmitting, to the UE, a radio resource control (RRC) signalling to enable early transmission configuration indicator (TCI) state application. The operations of 820 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 820 may be performed by a network entity 102 as described with reference to FIG. 1.
[0141] At 830, the method may include receiving, from the UE, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations. The operations of 830 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 830 may be performed by a network entity 102 as described with reference to FIG. 1.
[0142] It should be noted that the methods described herein describes possible implementations, and that the operations and the steps may be rearranged or otherwise modified and that other implementations are possible. Further, aspects from two or more of the methods may be combined.
[0143] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed with a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
[0144] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
[0145] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
[0146] As used herein, including in the claims, an article “a” before an element is unrestricted and understood to refer to “at least one” of those elements or “one or more” of those elements. The terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable. As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of” or “one or both of” ) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) . Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. Further, as used herein, including in the claims, a “set” may include one or more elements.
[0147] The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1.A user equipment (UE) comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:receive, from a network entity, one or more channel state information (CSI) report configurations for event triggered beam reporting;determine at least one reference signal (RS) transmission occasion for computing Layer-1 reference signal received power (L1-RSRP) ; andtransmit, to the network entity, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations.2.The UE of claim 1, wherein the at least one RS resource transmission occasion comprises at least one of:the most recent RS resource transmission occasion no later than a CSI reference resource determined by a first physical uplink control channel (PUCCH) transmission requesting or notifying the beam report;the most recent RS resource transmission occasion no later than a CSI reference resource determined by a second physical uplink shared channel (PUSCH) transmission carrying the beam report;the last RS resource transmission occasion within a time window which triggers the beam report if the time window is configured; orthe last RS resource transmission occasion within a time window that satisfies an event configured for the one or more CSI report configuration,wherein the CSI reference resource is a valid downlink (DL) slot which is K slot before the slot for the PUCCH transmission or the PUSCH transmission, where K includes a fixed value or a value determined according to UE capability.3.The UE of claim 1, wherein multiple CSI report configurations, among the one or more CSI report configurations, are associated with a first PUCCH resource for triggering beam report, and the processor is further configured to:determine that multiple events corresponding to the multiple CSI report configurations occur; andtrigger, on the first PUCCH resource, the beam report for one of the multiple CSI report configurations with a highest priority.4.The UE of claim 3, wherein the processor is further configured to determine priorities of the multiple CSI report configurations based on at least one of the following rules:a CSI report configuration with a lower CSI report configuration identity (ID) has a higher priority;a CSI report configuration with a smaller component carrier (CC) index for a new beam set has a higher priority;a CSI report configuration with a smaller CC index applying an indicated transmission configuration indicator (TCI) state has a higher priority; ora CSI report configuration with smallest priority value PriiCSI (y, k, c, s) specified in 3GPP Clause 5.2.5 in TS38.214 V18.3.0 by assuming y=0 for the CSI report configuration for event triggered beam report.5.The UE of claim 1, wherein the processor is further configured to:store, after transmitting the beam report, quasi-colocation (QCL) properties of a synchronization signal / PBCH block (SSB) associated with at least one new beam.6.The UE of claim 5, wherein the processor is further configured to:receive downlink control information (DCI) indicating a joint or downlink (DL) TCI state associated with the new beam RS that the UE has stored the QCL properties of the associated SSB; andapply the indicated TCI state by assuming beam applying time equal to zero.7.The UE of claim 1, wherein Event-2 is configured for a CSI report configuration configured with a time window and a number of event instances for beam report, and the processor is further configured to:determine multiple counters, each of which corresponding to a new beam RS resource;reset all of the multiple counters for one or more of the following conditions:after sending a hybrid automatic repeat request acknowledgement (HARQ-ACK) for signalling indicating a unified TCI state activation or deactivation;after sending a HARQ-ACK for a physical downlink control channel (PDCCH) indicating a TCI state different from a current TCI state;after receiving a PDCCH addressed to a cell-radio network temporary identifier (C-RNTI) indicating uplink grant for a new transmission for a HARQ process used for a transmission of a configured grant (CG) -PUSCH, wherein the CG-PUSCH contains the beam report in response to a PUCCH indicating a beam report;a serving cell (SCell) in which RS resources for new beams are configured is deactivated; ora serving cell in which the current TCI state is applied is deactivated.8.The UE of claim 1, wherein an RS resource for a current beam corresponding to an indicated TCI state and RS resources for new beams are in different cells when Event-1 is configured for a CSI report configuration.9.The UE of claim 8, wherein the processor is further configured to;receive, from the network entity, an RRC parameter indicating the serving cell for which a current TCI state is applied; ordetermine, in absence of the RRC parameter, that the current TCI state is the one applied to the serving cell which configures the CSI report configuration or the cell which configures RS resources for the new beams.10.The UE of claim 1, wherein Event-1 is configured for a CSI report configuration, and the processor is further configured to:determine that there is at least one Event-1 instance between two adjacent first PUCCH resource transmission occasions for triggering the beam report; andsend a first PUCCH resource in the latter of the two adjacent first PUCCH transmission occasions.11.The UE of claim 1, wherein Event-1 is configured for a CSI report configuration, and the processor is further configured to:report the number of Event-1 instances between the latest two first PUCCH resource transmission occasions in the corresponding beam report.12.The UE of claim 1, wherein Event-7 is configured for a CSI report configuration, and the processor is further configured to:determine that there is at least one Event-7 instance within a time window before a first PUCCH resource transmission occasion for triggering the beam report, wherein an end time of the time window is later than a last PUCCH transmission occasion and no later than the first PUCCH transmission occasion; andsend a first PUCCH resource in the first PUCCH transmission occasion.13.The UE of claim 1, wherein Event-7 is configured for a CSI report configuration, and the processor is further configured to:include L1-RSRP corresponding to all activated joint or DL TCI states in the corresponding beam report.14.A network entity comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:transmit, to a user equipment (UE) , one or more channel state information (CSI) report configurations for event triggered beam report;transmit, to the UE, a radio resource control (RRC) signalling to enable early transmission configuration indicator (TCI) state application; andreceive, from the UE, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations.15.The network entity of claim 14, wherein an RS resource for a current beam corresponding to an indicated TCI state and RS resources for new beams are in different cells when Event-1 is configured for a CSI report configuration.16.The network entity of claim 15, wherein the processor is further configured to;transmit, to the UE, an RRC parameter indicating the serving cell for which a current TCI state is applied.17.The network entity of claim 14, wherein Event-1 is configured for a CSI report configuration, and the beam report includes the number of Event-1 instances between two first PUCCH resource transmission occasions for triggering the beam report.18.The network entity of claim 14, wherein Event-7 is configured for a CSI report configuration, and the beam report includes Layer-1 reference signal received power (L1-RSRP) corresponding to all activated joint or DL TCI states.19.A processor for wireless communication, comprising:at least one memory; anda controller coupled with the at least one memory and configured to cause the controller to:receive, from a network entity, one or more channel state information (CSI) report configurations for event triggered beam reporting;determine at least one reference signal (RS) transmission occasion for computing Layer-1 reference signal received power (L1-RSRP) ; andtransmit, to the network entity, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations.20.A method performed by a user equipment (UE) , the method comprising:receiving, from a network entity, one or more channel state information (CSI) report configurations for event triggered beam reporting;determining at least one reference signal (RS) transmission occasion for computing Layer-1 reference signal received power (L1-RSRP) ; andtransmitting, to the network entity, a beam report indicating one or more new beams for at least one of the one or more CSI report configurations.
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