Configuration for UE initiated beam reporting
The configuration of dedicated SR and notification resources for UE initiated beam reporting in NR Rel-19 optimizes resource allocation and reporting latency, addressing inefficiencies in UE initiated beam reporting by prioritizing events and reducing UL overhead.
Patent Information
- Application Number
- PCT/CN2024/110829
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-07-24
AI Technical Summary
The existing UE initiated beam reporting in NR Rel-19 lacks clear configuration for resource allocation and UCI format, leading to inefficiencies in reducing UL resource overhead and frequent periodic or semi-persistent beam reporting.
A configuration mechanism for UE initiated beam reporting is introduced, where the UE receives dedicated SR or notification resources for specific events, allowing event-triggered beam reports with prioritized SR or notification messages, and utilizes CG-PUSCH/PUCCH resources for efficient beam reporting.
This approach reduces UL resource overhead by optimizing resource allocation and reporting latency, ensuring timely and prioritized beam reporting based on event urgency.
Smart Images

Figure CN2024110829_24072025_PF_FP_ABST
Abstract
Description
CONFIGURATION FOR UE INITIATED BEAM REPORTINGTECHNICAL 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 configuration for UE initiated beam reporting.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) ) .
[0003] UE initialed beam reporting (UEI BR) is being specified in NR Rel-19 for uplink (UL) resource overhead reduction for beam report. For example, the UE shall only trigger beam report when the condition for some specified event is satisfied to avoid frequent periodic or semi-persistent beam reporting. The configuration for the UE initialed beam reporting, such as resource configuration, and the format of the beam report needs to be further studied.SUMMARY
[0004] The present disclosure relates to a user equipment (UE) , a network entity, a processor for wireless communication, methods, and computer readable media for configuration for UE initiated beam reporting.
[0005] 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, a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events; and transmit, to the network entity, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource.
[0006] 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) , a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events; and receive, from the UE, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource.
[0007] 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, a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events; and transmit, to the network entity, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource.
[0008] In a fourth aspect, there is provided a method performed by a user equipment (UE) , the method comprising: receiving, from a network entity, a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events; and transmitting, to the network entity, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource.
[0009] In an fifth aspect, there is provided a method performed by a network entity, the method comprising: transmitting, to a user equipment (UE) , a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events; and receiving, from the UE, at least one SR message on the at least one SR resource or a notification message on the at least one notification resource.
[0010] 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.
[0011] In some implementations of the methods, the UE and the network entity described herein, for mode A, each of the plurality of events is configured with a dedicated SR resource for the event, and when a condition for one or more events are satisfied, and the UE may transmit, to the network entity, at least one SR message on the dedicated SR resource corresponding to the one or more events.
[0012] In some implementations of the methods, the UE and the network entity described herein, the plurality of events comprise a first event which indicates that a quality of a current beam is worse than a certain threshold, and SR for the first event has a priority that is higher than a regular SR and lower than a SR for link recovery request (LRR) .
[0013] In some implementations of the methods, the UE and the network entity described herein, after transmitting multiple SR messages for different events, the UE may receive, from the network entity, scheduling downlink control information (DCI) indicating one or more of the different events to report; and transmit, to the network entity, a beam report corresponding to the indicated one or more events.
[0014] In some implementations of the methods, the UE and the network entity described herein, for mode B, each of the plurality of events is configured with a separate notification resource, and when a condition for one or more events are satisfied, the UE may transmit, to the network entity, at least one notification message on the separate notification resource corresponding to the one or more events.
[0015] In some implementations of the methods, the UE and the network entity described herein, the plurality of events comprise a first event which indicates that a quality of a current beam is worse than a certain threshold, and notification for the first event has a priority that is higher than a regular SR and lower than a SR for LRR.
[0016] In some implementations of the methods, the UE and the network entity described herein, the at least one SR or notification resource comprises one SR or notification resource configured for all the events, and the at least one SR or notification message includes event related information.
[0017] In some implementations of the methods, the UE and the network entity described herein, each of the at least one notification resource is associated with a separate configured grant (CG) physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) resource for the UE initiated beam reporting.
[0018] In some implementations of the methods, the UE and the network entity described herein, the notification resource and the associated CG PUSCH or PUCCH have a same periodicity.
[0019] In some implementations of the methods, the UE and the network entity described herein, one or more of the at least one notification resource is associated with a same CG PUSCH or PUCCH resource for the UE initiated beam reporting.
[0020] In some implementations of the methods, the UE and the network entity described herein, in a case that notification messages for multiple events are transmitted on notification resources associated with a same CG PUSCH or PUCCH resource, the UE may transmit a beam report for an event with the highest priority on the CG PUSCH or PUCCH resource.
[0021] In some implementations of the methods, the UE and the network entity described herein, in a case that notification messages for multiple events are transmitted on notification resources associated with a same CG PUSCH or PUCCH resource, the UE may transmit multiplexed beam reports for the multiple events on the same CG PUSCH or PUCCH resource.
[0022] In some implementations of the methods, the UE and the network entity described herein, the plurality of events comprises a second event which indicates a quality of at least one new beam becomes a threshold value better than a current beam, and the UE and the network entity may determine a reference signal (RS) set for new beam identification for the second event.
[0023] In some implementations of the methods, the UE and the network entity described herein, the RS set includes one or more reference signals that are associated with activated joint or downlink (DL) transmission control information (TCI) states for a bandwidth part (BWP) of a serving cell.
[0024] In some implementations of the methods, the UE and the network entity described herein, the configuration further indicates a new beam set, and to determine the RS set for new beam identification for the second event, the UE may receive, from the network entity, a TCI state activation / deactivation medium access control (MAC) control element (MAC CE) indicating a subset of the new beam set as the RS set.
[0025] In some implementations of the methods, the UE and the network entity described herein, the UE may report N new beams and a measurement result of a current beam in a beam report corresponding to event 2, where N is a positive integer.
[0026] In some implementations of the methods, the UE and the network entity described herein, the beam report includes: indexes of N+1 RSs where one of the indexes is the same as the RS index associated with the current beam, wherein differential reference signal received power (RSRP) quantization is applied to all the N+1 beams.
[0027] In some implementations of the methods, the UE and the network entity described herein, the beam report includes indexes of N beams associated with RS resources determined for new beam identification; and a measured RSRP of the current beam.
[0028] In some implementations of the methods, the UE and the network entity described herein, the beam report includes indexes of N beams associated with RS resources determined for new beam identification; and a differential RSRP of the current beam with the reference of an RS with the largest measurement result reported in the same beam report.
[0029] In some implementations of the methods, the UE and the network entity described herein, the beam report includes: indexes of N beams associated with RS resources determined for new beam identification; RSRP of the N beams and the current beams; and an indication on whether the largest RSRP is associated with the current beam.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 UE initiated beam reporting in accordance with some example embodiments of the present disclosure.
[0032] FIG. 3 illustrates a schematic diagram of an example of UL resources for UE initiated beam reporting in accordance with some example embodiments of the present disclosure.
[0033] FIG. 4 illustrates a schematic diagram of another example of UL resources for UE initiated beam reporting 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 user equipment 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 initialed beam report (UEI BR) is being specified in NR Rel-19 for UL resource overhead reduction for beam report. For example, the UE only initiate beam reporting when the condition for some specified event is satisfied to avoid frequent periodic or semi-persistent beam reporting. Therefore, UE initiated beam report may be called event triggered beam report as well. One or more events may be specified to support the UEI BR. When the UE determines to send beam report (s) corresponding to one or more events, the UE may first send a scheduling request to request the UL resource for the beam reporting and the beam report can be carried by physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) scheduled by downlink control information (DCI) . Alternatively or additionally, periodic notification resources and periodic UL resources can be preconfigured for the UE and when the UE determines to send a beam report the UE may send a notification message to indicate that the associated PUSCH or PUCCH resource is transmitted and carries the beam report for an event.
[0044] It was agreed by 3GPP to support two modes, i.e., mode A (dynamically scheduling uplink control information, UCI, by gNB) and mode B (UCI in pre-configured resource (s) for second UL channel) , on beam report transmission procedure for UE-initiated beam reporting. In 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. In mode B, at Step 1: UE transmits a first PUCCH (one-bit / multi-bit) notifying a second UL channel to carry beam report; and at Step 2: UE transmits the beam report in the second UL channel.
[0045] On UE-initiated / event-driven beam reporting, regarding trigger events, the following Event-1, 2, and 7a / 7b, are provided.
[0046] ● Event-1: Quality of the current beam is worse than a certain threshold.
[0047] ● Event-2: Quality of at least one new beam, such as L1-RSRP, becomes a threshold value better than the current beam.
[0048] ● Event-7a: 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 worst quality.
[0049] ● Event-7b: 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 best quality.
[0050] However, some issues related to the UE initiated beam reporting need to be further studied. One issue is how to configure necessary parameters and the resources for UEI beam report and the corresponding UE behavior. Another issue is how to design the (UCI) format for the UEI beam report. The present disclosure targets at some of the above noted issues to enhance the UE initiated beam reporting.
[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 signaling, transmit signaling) 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) .
[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 signaling (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 signaling, 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] Different types of channel state information (CSI) report are specified in NR Rel-18 including the CSI report for LTM (L1 / L2 triggered mobility) configured by LTM-CSI-ReportConfig IE and CSI report for non-LTM purpose configured by CSI-ReportConfig IE. All those CSI reports are initiated by NW including periodic, aperiodic and semi-persistent CSI report. Event driven beam report is initiated by UE with certain event, most of the parameters for UEI BR are different from that for NW initiated beam report. Similar with the beam failure recovery which is based on the beam failure event specified in NR Rel-15, a dedicated radio resource control (RRC) information element (IE) , which may be different from LTM-CSI-ReportConfig IE and CSI-ReportConfig IE may be configured for a bandwidth part (BWP) of a serving cell to configure the UEI BR based on some specific event.
[0072] One example of the configuration 215 is provided in Table 1 below.
[0073] Table 1 EventDrivenBeamReportConfig IE to configure the dedicated parameters for UE initiated beam report
[0074] [Corrected under Rule 26, 27.08.2024]EventDrivenBeamReportConfig information element
[0075] FIG. 2 illustrates a process flow 200 for UE initiated beam reporting 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 any of the network entities 102. It would be appreciated that the process flow 200 may be applied to other communication scenarios.
[0076] At 210, the network entity 202 transmits, to the UE 201, a configuration for UE initiated beam reporting 215 indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events. Accordingly, the UE 201 receives the configuration for UE initiated beam reporting 215 from the network entity 202. An example of the configuration for UE initiated beam reporting 215 may include at least some of the information elements in Table 1.
[0077] When multiple events are configured for the UE 201 in a BWP of a serving cell, mechanism for event differential is needed. In some embodiments, different events may be configured with different SR resources, e.g., schedulingRequestID, for mode A and different notification resources, e.g., notificationResource, for mode B as illustrated in Table 1..
[0078] At 230, the CSI-RS or SSB transmission / reception are performed between the UE 201 and the network entity 202, and the UE 201 obtains measurement results (e.g., L1-RSRP) of one or more beams in configured new beam set (s) . In some embodiments, the new beam set (s) may be configured per event in the configuration 215. Each beam is represented by a reference signal, e.g., a CSI-RS resource or a SSB resource.
[0079] At 240, the UE 201 transmits, to the network entity 202, SR message (s) or notification message (s) 245 on the corresponding SR resource or notification resource. Accordingly, at 250, the network entity 202 receives the SR message (s) or notification message (s) 245 from the UE 201. When a condition for one or more events is satisfied, the UE 201 may transmit a SR message or notification message 245 to NW, depending on whether mode A or mode B is configured.
[0080] In some embodiments, for mode A, each of the different events may be configured with a dedicated SR resource for the event. When a condition for one or more events are satisfied, the UE 201 may transmit at least one SR message on the dedicated SR resource corresponding to the one or more events. In some embodiments, for mode B, each of the different events may is configured with a separate notification resource. When a condition for one or more events are satisfied, the UE 201 may transmit at least one notification message on the separate notification resource corresponding to the one or more events.
[0081] At 260, the UE 201 transmits a UEI beam report 265 to the network entity 202. For mode A, the UE 201 may transmit the UEI beam report 265 on PUSCH / PUCCH resource scheduled by DCI. For mode B, the UE 201 may transmit the UEI beam report 265 on the configured grant (CG) -PUSCH / PUCCH resource.
[0082] Considering the urgency of each event, the SR or notification for different events may have different priority compared with regular SR and SR for link recovery request (LRR) . For example, the SR or notification for Event-1 may has a priority higher than a regular SR but lower than a SR for LRR. The SR or notification for other events (e.g., Event-2, Event 7a, Event-7b) may have the same priority as the regular SR. Alternatively, the network entity 202 may indicate the priority of the event (s) in the associated SR configuration.
[0083] Depending on the triggering condition for different events, more than one events may be simultaneously triggered in a same time instance. The UE 201 may determine to report one or more of the events according to event priority. For mode A, when more than one events are triggered by sending the corresponding SR messages 245, the network entity 202 can schedule a PUSCH / PUCCH for the UE 201 to transmit the beam report corresponding to one event. For example, the event information for the beam report may be indicated in the scheduling DCI.
[0084] In some embodiments, one SR or notification resource may be configured for all the events and the event related information may be indicated in the SR or notification message or in the corresponding beam report. If Event-1, which may have no further beam report, is detected, the UE 201 may only report it in the SR or notification message to avoid unnecessary delay. In other words, if the SR or notification message 245 is transmitted on the dedicated resource for Event-1, the network entity will know that Event-1 occurs, and the UE may omit the transmission of the beam report 265.
[0085] For mode A, the NW may schedule PUSCH or PUCCH resources for the beam report transmission, and regular PUSCH scheduled by DCI format 0_1 / 0_2 can support such operation. PUCCH scheduled by DCI format 1_1 / 1_2 can also support such procedure. For mode B, CG-PUSCH or PUCCH can be used in Step 2 for the beam reporting. The configuration regarding the CG-PUSCH and PUCCH resource for the beam report and the corresponding UE behavior will be discussed below.
[0086] FIG. 3 illustrates a schematic diagram of an example of UL resources for UE initiated beam reporting in accordance with some example embodiments of the present disclosure. As illustrated in FIG. 3, each notification resource for an event is associated with a separate CG-PUSCH / PUCCH. Different events may be configured with different beam report initiation periodicity according to the urgency of each event. For example, Event-2 is configured with a higher reporting initiation periodicity than Event-1, Event-7a, and Event-7b, such that it can be reported with less latency when it is detected.
[0087] In some embodiments, the notification resource and the associated CG PUSCH or PUCCH may have a same periodicity to reduce the report latency for each event. The UE may only need to report the UCI corresponding to one event in the corresponding CG-PUSCH / PUCCH resource.
[0088] FIG. 4 illustrates a schematic diagram of another example of UL resources for UE initiated beam reporting in accordance with some example embodiments of the present disclosure. As illustrated in FIG. 4, a common CG-PUSCH / PUCCH resource is configured for the notification for more than one event. For example, a same CG-PUSCH or PUCCH resource can be configured or be associated with the notification resources for all the events configured in the BWP of a serving cell. As an example, in FIG. 4, the notification resources for Event-2, Event-7a, and Event-7b may be associated with the common CG-PUSCH / PUCCH resource for one reporting instance. Since a common CG-PUSCH / PUCCH resource is configured for all Event-2, Event-7a and Event-7b, the report latency for some events may be larger than the embodiment in FIG. 3.
[0089] Because a same CG-PUSCH / PUCCH resource may be configured for the notification resources for multiple events, there could be a case that more than one events are detected and the UE may initiate a beam report for the events. In one option, the UE may only send the notification and the corresponding beam report for one event with the highest priority. Alternatively, the UE may send the notification for the multiple events and the corresponding beam reports are multiplexed in the CG-PUSCH or PUCCH resource. In this method, the UCI for different events may apply independent channel coding. Which behavior is be used may be indicated by RRC signaling.
[0090] In some embodiments, a single notification and an associated CG-PUSCH / PUCCH resource may be configured when more than one events are configured. That is, all the events share a same notification and a same UL resource for the beam report. In this case, the UE may need to indicate the event information, e.g., event ID, in the notification resource or the beam report.
[0091] For different events, the resource configurations / determination may be different. For Event-1, the SSB or QCLed (Quasi Co-Located) CSI-RS associated with the current joint or DL TCI state can be used for the assessment for the event, and different thresholds may be configured for SSB and CSI-RS respectively. When unified TCI framework is configured for a serving cell, a UE can be indicated with a joint or DL TCI state for the BWP of the serving cell for the UE to determine the spatial Rx filters for the DL reception on the BWP of the serving cell. The indicated joint or DL TCI state is called the current beam for the BWP of the serving cell.
[0092] For Event-2, the RSs for the new beam identification for Event-2 are explicitly configured and the UE will compare the quality of the candidate beams and the current beam to identify one or more new beam with better quality for potential beam switching. If a fixed candidate beam set is configured for all the beams which can be indicated as the ‘current beam’ , the candidate beam set may be larger enough to avoid frequent reconfiguration. For example, it may include all the up to 64 SSBs as the new beam set for beam failure recovery. However, the corresponding UE measurement task will be too high because the UE needs to measure all the candidate beams and all the activated TCI states.
[0093] Some further enhancement is needed to allow the UE to determine a RS set for new beam identification for Event-2. Considering that one of the use cases for Event-2 is to help the gNB to identify a new beam, which is expected to be selected from the activated TCI states, for potential beam switching. Thus, the following schemes are proposed.
[0094] In some embodiments, each joint or DL TCI state is associated with a RS, and such RS (s) can be included in the new beam set for Event-2. The UE only need to measure the RS (s) which are associated with activated joint or DL TCI states for a bandwidth part (BWP) of a serving cell.
[0095] In some embodiments, the NW may directly activate a subset of the new beam set as the candidate beam set. Considering that a same candidate beam set is expected for a same set of activated TCI state, a unified TCI state activation or deactivation MAC CE with some enhancement may be used for this purpose. For example, an additional bitmap field can be added at the end of the MAC CE to indicate which RSs in the new beam set are selected for candidate beam measurement. The selected RSs may be called activated RS for new beam identification. When any one of the activated TCI states is indicated for a BWP of the serving cell, the activated RSs are determined as the new beam set for candidate beam measurement.
[0096] For Event-7a and Event-7b, those two events can be used for the UE to identify another set of beams which can be used as the activated TCI states for a BWP of a serving cell. A new beam set configured by RRC can be used for the event, e.g., in the configuration in Table 1. The MAC CE with bitmap for Event-2 can also be reused for those events to reduce the number of beams for candidate beam measurement.
[0097] The UE may be indicated to report N (apositive integer) beams in the beam report corresponding to a UEI beam report when any one of the Event-1, Event-2, Even-7a and Event-7b is configured. Accordingly, enhancements on UCI format for UEI beam report for those events are needed.
[0098] A reference resource set including a set of CSI-RS resources or a set of SSB resources may be configured or determined for new beam identification. When the condition for the configured event (s) is satisfied, the UE may trigger a beam report and the NW may configure the UE to report N new beams for Event-2, Event-7a and Event 7b. Considering that the reported beams may not include the current beam, but the NW may want to know the measurement result of the current beam, the NW may indicate the UE to report the measurement result of the current beam. Some options are provided on the UCI formats for the beam report on different configurations.
[0099] In one option, when the RS associated with the current beam is configured or determined as one of the RS (s) for new beam identification and the UE is configured to always include the current beam, the UE may report N+1 beams in the beam report with the UCI format provided in Table 2 below.
[0100] Table 2 Mapping order of CSI fields of one beam report for UEI beam report
[0101] In some embodiments, the UE may report indexes of N+1 beams (e.g., CSI-RS resource index (CRI) or SSB resource index (SSBRI) ) in the beam report, where one of the N+1 beams is the current beam, i.e., one of the CRI or SSBRI indicate a same RS as that associated with the current beam. The beam report may further include measurement results of the N+1 beams with differential RSRP quantization applied to all the N+1 beams.
[0102] In Table 3, Ks is the number of beams configured or determined as the new beam identification set associated with the current beam, and CRI / SSBRI k (k≥0) corresponds to the determined (k+1) -th entry of associated CSI-RS resource or SSB resource in the corresponding resource set for new beam identification.
[0103] The UE may use differential L1-RSRP based reporting, where the largest measured value of L1-RSRP is quantized to a 7-bit value in the range [-140, -44] dBm with 1dB step size, and the differential L1-RSRP is quantized to a 4-bit value. The differential L1-RSRP value is computed with 2 dB step size with a reference to the largest measured L1-RSRP value which is part of the same L1-RSRP reporting instance.
[0104] In another option, when the RS associated with the current beam does not belong to the new beam identification set while the UE is configured to always include the current beam, the UE may report N+1 beams in the beam report with the UCI format provided in Table 3, Table 4 or Table 5.
[0105] Table 3 Mapping order of CSI fields of one beam report for UEI beam report
[0106] Table 4: Mapping order of CSI fields of one beam report for UEI beam report
[0107] Table 5: Mapping order of CSI fields of one beam report for UEI beam report
[0108] The UE may report N CRIs / SSBRIs of beams belonging to the new beam identification set and the RSRP corresponding to the N beams as well as the RSRP corresponding to the current beam. In Table 3, the measured RSRP for the current beam is directly quantized as a 7bits value; while in Table 4 differential RSRP of the current beam is reported with the reference of an RS with the largest measurement result reported in the same beam report.
[0109] For Event-7a, the beam with the largest RSRP which is taken as the reference for differential RSRP calculation may be the current beam. The UE may indicate in the beam report (i.e., the “current beam indication” field with one bit size in Table 5) which one of RSRP#1 and Differential RSRP#N corresponding to the current beam, i.e., the whether the largest RSRP is associated with the current beam.
[0110] 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) .
[0111] 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.
[0112] 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) .
[0113] 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, a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events; and means for transmitting, to the network entity, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource.
[0114] 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) , a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events; and means for receiving, from the UE, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource.
[0115] 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.
[0116] 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.
[0117] 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.
[0118] 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.
[0119] 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.
[0120] 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.
[0121] 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) .
[0122] 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) .
[0123] The controller 602 may be configured to manage and coordinate various operations (e.g., signaling, 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.
[0124] 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.
[0125] 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) .
[0126] 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 initialed 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.
[0127] 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.
[0128] 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, a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events; and means for transmitting, to the network entity, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource.
[0129] 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) , a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events; and means for receiving, from the UE, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource.
[0130] 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.
[0131] At 710, the method may include receiving, from a network entity, a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events. 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.
[0132] At 720, the method may include transmitting, to the network entity, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource. 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.
[0133] 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.
[0134] At 810, the method may include transmitting, to a user equipment (UE) , a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events. 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.
[0135] At 820, the method may include receiving, from the UE, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource. 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.
[0136] 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.
[0137] 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.
[0138] 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.
[0139] 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.
[0140] 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.
[0141] 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, a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events; andtransmit, to the network entity, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource.2.The UE of claim 1, wherein, for mode A, each of the plurality of events is configured with a dedicated SR resource for the event, and wherein, to transmit an SR message, the processor is configured to:when a condition for one or more events are satisfied, transmit, to the network entity, at least one SR message on the dedicated SR resource corresponding to the one or more events.3.The UE of claim 2, wherein the plurality of events comprise a first event which indicates that a quality of a current beam is worse than a certain threshold, and SR for the first event has a priority that is higher than a regular SR and lower than a SR for link recovery request (LRR) .4.The UE of claim 1, wherein for mode B, each of the plurality of events is configured with a separate notification resource, and wherein, to transmit a notification message, the processor is configured to:when a condition for one or more events are satisfied, transmit, to the network entity, at least one notification message on the separate notification resource corresponding to the one or more events.5.The UE of claim 4, wherein the plurality of events comprise a first event which indicates that a quality of a current beam is worse than a certain threshold, and notification for the first event has a priority that is higher than a regular SR and lower than a SR for LRR.6.The UE of claim 1, wherein each of the at least one notification resource is associated with a separate configured grant (CG) physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) resource for the UE initiated beam reporting.7.The UE of claim 1, wherein one or more of the at least one notification resource is associated with a same CG PUSCH or PUCCH resource for the UE initiated beam reporting.8.The UE of claim 7, wherein the processor is further configured to:in a case that notification messages for multiple events are transmitted on notification resources associated with a same CG PUSCH or PUCCH resource, transmit a beam report for an event with the highest priority on the CG PUSCH or PUCCH resource.9.The UE of claim 7, wherein the processor is further configured to:in a case that notification messages for multiple events are transmitted on notification resources associated with a same CG PUSCH or PUCCH resource, transmit multiplexed beam reports for the multiple events on the same CG PUSCH or PUCCH resource.10.The UE of claim 1, wherein the plurality of events comprises a second event which indicates a quality of at least one new beam becomes a threshold value better than a current beam, and the processor is further configured to:determine a reference signal (RS) set for new beam identification for the second event.11.The UE of claim 10, wherein the RS set includes one or more reference signals that are associated with activated joint or downlink (DL) transmission control information (TCI) states for a bandwidth part (BWP) of a serving cell.12.The UE of claim 10, wherein the configuration further indicates a new beam set, and to determine the RS set for new beam identification for the second event, the processor is configured to:receive, from the network entity, a TCI state activation / deactivation medium access control (MAC) control element (MAC CE) indicating a subset of the new beam set as the RS set.13.The UE of claim 1, wherein the UE is further configured to:report N new beams and a measurement result of a current beam in a beam report corresponding to event 2, where N is a positive integer.14.The UE of claim 13, wherein the beam report includes:indexes of N+1 RSs where one of the indexes is the same as the RS index associated with the current beam, wherein differential reference signal received power (RSRP) quantization is applied to all the N+1 beams.15.The UE of claim 13, wherein the beam report includesindexes of N beams associated with RS resources determined for new beam identification; anda measured RSRP of the current beam.16.The UE of claim 13, wherein the beam report includes:indexes of N beams associated with RS resources determined for new beam identification; anda differential RSRP of the current beam with the reference of an RS with the largest measurement result reported in the same beam report.17.The UE of claim 13, wherein the beam report includes:indexes of N beams associated with RS resources determined for new beam identification;RSRP of the N beams and the current beams; andan indication on whether the largest RSRP is associated with the current beam.18.A network entity comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:transmit, to a user equipment (UE) , a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events; andreceive, from the UE, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource.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, a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events; andtransmit, to the network entity, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource.20.A method performed by a user equipment (UE) , the method comprising:receiving, from a network entity, a configuration for UE initiated beam reporting, the configuration indicating at least one scheduling request (SR) resource or at least one notification resource for a plurality of events; andtransmitting, to the network entity, at least one SR message on the at least one SR resource or at least one notification message on the at least one notification resource.
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