User equipment (UE) -initiated beam reporting for beam management
By configuring UE to report beams based on defined quality thresholds and TCI states, the system addresses the challenge of beam management in wireless communications, enhancing network decision-making and performance.
Patent Information
- Application Number
- PCT/CN2025/087100
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-04-04
- Filing Date
- 2025-04-03
- Publication Date
- 2025-10-09
AI Technical Summary
Existing wireless communication systems face challenges in defining which beams a user equipment (UE) should measure and report, particularly in cases of inter-cell and intra-cell beam management, leading to suboptimal beam management.
The UE is configured to initiate beam reporting based on defined events, such as quality thresholds of active and non-active beams, using transmission configuration indicator (TCI) states, enabling it to transmit reports when specific conditions are met.
This approach enhances beam management by ensuring timely and relevant beam reporting, allowing the network to make informed decisions on communication paths, thereby improving system performance.
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Figure CN2025087100_09102025_PF_FP_ABST
Abstract
Description
USER EQUIPMENT (UE) -INITIATED BEAM REPORTING FOR BEAM MANAGEMENTCROSS REFERENCE
[0001] The present Application for Patent claims the benefit of International Application No. PCT / CN2024 / 086149 by Yuan et al., entitled “USER EQUIPMENT (UE) -INITIATED BEAM REPORTING FOR BEAM MANAGEMENT” and filed April 04, 2024, which is assigned to the assignee hereof and is hereby expressly incorporated by reference herein in its entirety. FIELD OF TECHNOLOGY
[0002] The following relates to wireless communications, including user equipment (UE) -initiated beam reporting for beam management.BACKGROUND
[0003] Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power) . Examples of such multiple-access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA) , time division multiple access (TDMA) , frequency division multiple access (FDMA) , orthogonal FDMA (OFDMA) , or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM) . A wireless multiple-access communications system may include one or more base stations, each supporting wireless communication for communication devices, which may be known as user equipment (UE) .SUMMARY
[0004] The described techniques relate to improved methods, systems, devices, and apparatuses that support user equipment (UE) -initiated beam reporting for beam management. For example, the described techniques provide for UE operations based on definitions of which beams a UE may include in a UE-initiated beam report. In some examples, the UE may identify one or more beams (e.g., associated with one or more transmission configuration indicator (TCI) states) based on activated TCI states, indicated TCI states, and / or TCI states associated with channels that use TCI states other than the activated or indicated TCI states. The described techniques may further enable a network entity to configure the UE with one or more trigger events for the UE-initiated beam reporting. For example, the network entity may configure the UE to transmit a beam report when a quality of the one or more active or indicated beams falls below a threshold, when a quality of one or more non-active beams is above a threshold, when a quality of the one or more non-active beams is a threshold amount above a quality of the one or more active or indicated beams, and so on. The UE may determine to transmit a report, for example, when an additional beam (e.g., a beam with a quality above a threshold) is detected, or may indicate to the network entity (e.g., via the beam report) whether additional beams are detected.
[0005] A method for wireless communications by a UE is described. The method may include receiving a control message indicating a configuration of a set of events that trigger a transmission of a beam report, where the beam report is based on measurements of a set of beams associated with a serving cell or a non-serving cell, or both, identifying, for an event of the set of events, one or more beams from the set of beams, where the one or more beams are identified based on one or more indicated unified TCI states for a first set of channels, one or more activated unified TCI states, one or more other unified TCI states that are indicated for a second set of channels different from the first set of channels, or any combination thereof, and transmitting the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied.
[0006] A UE for wireless communications is described. The UE may include one or more memories storing processor executable code, and one or more processors coupled with the one or more memories. The one or more processors may individually or collectively be operable to execute the code to cause the UE to receive a control message indicating a configuration of a set of events that trigger a transmission of a beam report, where the beam report is based on measurements of a set of beams associated with a serving cell or a non-serving cell, or both, identify, for an event of the set of events, one or more beams from the set of beams, where the one or more beams are identified based on one or more indicated unified TCI states for a first set of channels, one or more activated unified TCI states, one or more other unified TCI states that are indicated for a second set of channels different from the first set of channels, or any combination thereof, and transmit the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied.
[0007] Another UE for wireless communications is described. The UE may include means for receiving a control message indicating a configuration of a set of events that trigger a transmission of a beam report, where the beam report is based on measurements of a set of beams associated with a serving cell or a non-serving cell, or both, means for identifying, for an event of the set of events, one or more beams from the set of beams, where the one or more beams are identified based on one or more indicated unified TCI states for a first set of channels, one or more activated unified TCI states, one or more other unified TCI states that are indicated for a second set of channels different from the first set of channels, or any combination thereof, and means for transmitting the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied.
[0008] A non-transitory computer-readable medium storing code for wireless communications is described. The code may include instructions executable by one or more processors to receive a control message indicating a configuration of a set of events that trigger a transmission of a beam report, where the beam report is based on measurements of a set of beams associated with a serving cell or a non-serving cell, or both, identify, for an event of the set of events, one or more beams from the set of beams, where the one or more beams are identified based on one or more indicated unified TCI states for a first set of channels, one or more activated unified TCI states, one or more other unified TCI states that are indicated for a second set of channels different from the first set of channels, or any combination thereof, and transmit the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied.
[0009] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the event includes conditions in which a first quality of a first subset of beams of the set of beams may be below a first threshold and the first subset of beams may be associated with a physical cell identifier (PCI) of the serving cell, a PCI of an additional active cell, or both.
[0010] Some examples of the method, UEs, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining whether one or more additional beams of the set of beams may be associated with a second quality that satisfies the first threshold, where the beam report includes an indication of whether the one or more additional beams may be associated with the second quality that satisfies the first threshold.
[0011] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, transmitting the beam report may include operations, features, means, or instructions for transmitting the beam report based on identifying one or more additional beams of the set of beams that may be associated with a second quality that may be higher than the first quality.
[0012] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the event includes conditions in which a quality of a second subset of beams of the set of beams satisfies a second threshold and the second subset of beams may be associated with a PCI of the non-serving cell.
[0013] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the event includes conditions in which a quality of a second subset of beams of the set of beams may be a threshold amount above a quality of a first subset of beams of the set of beams, the first subset of beams may be associated with a PCI of the serving cell, a PCI of an additional active cell, or both, and the second subset of beams may be associated with a PCI of the non-serving cell.
[0014] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, transmitting the beam report may include operations, features, means, or instructions for transmitting the beam report in response to the trigger being satisfied for each beam of the first subset of beams.
[0015] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, transmitting the beam report may include operations, features, means, or instructions for transmitting the beam report in response to the trigger being satisfied for at least one beam of the first subset of beams.
[0016] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, transmitting the beam report may include operations, features, means, or instructions for transmitting the beam report in response to the trigger being satisfied for a configured quantity of beams of the first subset of beams.
[0017] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, transmitting the beam report may include operations, features, means, or instructions for transmitting the beam report in response to an average quality of the first subset of beams satisfying the trigger.
[0018] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, transmitting the beam report may include operations, features, means, or instructions for transmitting the beam report based on the trigger being satisfied for each TCI state of the set of multiple TCI states.
[0019] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, transmitting the beam report may include operations, features, means, or instructions for transmitting the beam report based on the trigger being satisfied for at least one TCI state of the set of multiple TCI states.
[0020] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, transmitting the beam report may include operations, features, means, or instructions for transmitting the beam report based on the trigger being satisfied for a quantity of TCI states of the set of multiple TCI states.
[0021] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, transmitting the beam report may include operations, features, means, or instructions for transmitting the beam report based on an average quality of the set of multiple TCI states satisfying one or more conditions associated with the trigger.
[0022] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the one or more beams may be associated with the one or more indicated unified TCI states for the first set of channels.
[0023] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the one or more beams may be associated with the one or more activated unified TCI states.
[0024] In some examples of the method, UEs, and non-transitory computer-readable medium described herein, the one or more beams may be associated with the one or more indicated unified TCI states for the first set of channels and further associated with the one or more other unified TCI states that may be indicated for the second set of channels different from the first set of channels.BRIEF DESCRIPTION OF THE DRAWINGS
[0025] FIG. 1 shows an example of a wireless communications system that supports user equipment (UE) -initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure.
[0026] FIG. 2 shows an example of a wireless communications system that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure.
[0027] FIG. 3 shows an example of a process flow that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure.
[0028] FIGs. 4 and 5 show block diagrams of devices that support UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure.
[0029] FIG. 6 shows a block diagram of a communications manager that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure.
[0030] FIG. 7 shows a diagram of a system including a device that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure.
[0031] FIGs. 8 through 11 show flowcharts illustrating methods that support UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure.DETAILED DESCRIPTION
[0032] In some wireless communications systems, a user equipment (UE) may be configured to perform beam reporting based on one or more events that trigger a beam report, which may be referred to as UE-initiated beam reporting. For example, the UE may measure and report a quality (e.g., a signal strength, a signal-to-noise ratio (SNR) ) of a set of beams when one or more events are triggered for UE-initiated beam reporting. The network entity may determine to communicate via one or more beams based on the report (e.g., based on respective qualities of the set of beams being above or below a threshold) . However, the UE may be unaware of which beams to report and / or when to transmit the beam report. As such, definitions of which beam or beams to measure and include in the UE-initiated beam report, as well as rules for the corresponding events in which the UE sends a beam report, may be desirable to support improved beam management in cases where the UE measures beams of multiple cells (e.g., for inter-cell beam management) or in cases where the UE measures beams of a single cell (e.g., for intra-cell beam management) .
[0033] Techniques described herein may provide for UE operations based on definitions of which beams the UE may include in a UE-initiated beam report and / or which beams the UE may measure to trigger transmission of the beam report. In some examples, the UE may identify one or more current beams (e.g., associated with one or more transmission configuration indicator (TCI) states) based on activated TCI states (e.g., TCI states activated via a medium access control-control element (MAC-CE) ) , indicated TCI states (e.g., TCI states indicated via downlink control information) , and / or TCI states associated with channels that use TCI states other than the activated or indicated TCI states. The described techniques may further enable the network entity to configure the UE with one or more events and / or conditions that trigger the UE-initiated beam reporting. For example, the network entity may configure the UE to transmit a beam report when a quality (e.g., a layer1 (L1) reference signal received power (RSRP) ) of the one or current beams falls below a threshold, when a quality of one or more non-active beams (e.g., associated with one or more TCI states other than the activated or indicated TCI states) is above a threshold, when a quality of the one or more non-active beams is a threshold amount above a quality of the one or more current beams, when a quality of a beam (e.g., a new beam) becomes a threshold amount better than a reference signal with an Mth best quality of one or more reference signals derived from an activated TCI state, and so on. The UE may determine to transmit a report, for example, when one or more additional beams (e.g., a beam different from a current beam used by the UE for communications, a beam with a quality above a threshold) is detected, or may indicate to the network entity (e.g., via the beam report) whether one or more additional beams are detected.
[0034] Aspects of the disclosure are initially described in the context of wireless communications systems. Aspects of the disclosure are further illustrated by and described with reference to process flows, apparatus diagrams, system diagrams, and flowcharts that relate to UE-initiated beam reporting for beam management.
[0035] FIG. 1 shows an example of a wireless communications system 100 that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure. The wireless communications system 100 may include one or more devices, such as one or more network devices (e.g., network entities 105) , one or more UEs 115, and a core network 130. In some examples, the wireless communications system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating in accordance with other systems and radio technologies, including future systems and radio technologies not explicitly mentioned herein.
[0036] The network entities 105 may be dispersed throughout a geographic area to form the wireless communications system 100 and may include devices in different forms or having different capabilities. In various examples, a network entity 105 may be referred to as a network element, a mobility element, a radio access network (RAN) node, or network equipment, among other nomenclature. In some examples, network entities 105 and UEs 115 may wirelessly communicate via communication link (s) 125 (e.g., a radio frequency (RF) access link) . For example, a network entity 105 may support a coverage area 110 (e.g., a geographic coverage area) over which the UEs 115 and the network entity 105 may establish the communication link (s) 125. The coverage area 110 may be an example of a geographic area over which a network entity 105 and a UE 115 may support the communication of signals according to one or more radio access technologies (RATs) .
[0037] The UEs 115 may be dispersed throughout a coverage area 110 of the wireless communications system 100, and each UE 115 may be stationary, or mobile, or both at different times. The UEs 115 may be devices in different forms or having different capabilities. Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of supporting communications with various types of devices in the wireless communications system 100 (e.g., other wireless communication devices, including UEs 115 or network entities 105) , as shown in FIG. 1.
[0038] As described herein, a node of the wireless communications system 100, which may be referred to as a network node, or a wireless node, may be a network entity 105 (e.g., any network entity described herein) , a UE 115 (e.g., any UE described herein) , a network controller, an apparatus, a device, a computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, a node may be a UE 115. As another example, a node may be a network entity 105. As another example, a first node may be configured to communicate with a second node or a third node. In one aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a UE 115. In another aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a network entity 105. In yet other aspects of this example, the first, second, and third nodes may be different relative to these examples. Similarly, reference to a UE 115, network entity 105, apparatus, device, computing system, or the like may include disclosure of the UE 115, network entity 105, apparatus, device, computing system, or the like being a node. For example, disclosure that a UE 115 is configured to receive information from a network entity 105 also discloses that a first node is configured to receive information from a second node.
[0039] In some examples, network entities 105 may communicate with a core network 130, or with one another, or both. For example, network entities 105 may communicate with the core network 130 via backhaul communication link (s) 120 (e.g., in accordance with an S1, N2, N3, or other interface protocol) . In some examples, network entities 105 may communicate with one another via backhaul communication link (s) 120 (e.g., in accordance with an X2, Xn, or other interface protocol) either directly (e.g., directly between network entities 105) or indirectly (e.g., via the core network 130) . In some examples, network entities 105 may communicate with one another via a midhaul communication link 162 (e.g., in accordance with a midhaul interface protocol) or a fronthaul communication link 168 (e.g., in accordance with a fronthaul interface protocol) , or any combination thereof. The backhaul communication link (s) 120, midhaul communication links 162, or fronthaul communication links 168 may be or include one or more wired links (e.g., an electrical link, an optical fiber link) or one or more wireless links (e.g., a radio link, a wireless optical link) , among other examples or various combinations thereof. A UE 115 may communicate with the core network 130 via a communication link 155.
[0040] One or more of the network entities 105 or network equipment described herein may include or may be referred to as a base station 140 (e.g., a base transceiver station, a radio base station, an NR base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB) , a next-generation NodeB or giga-NodeB (either of which may be referred to as a gNB) , a 5G NB, a next-generation eNB (ng-eNB) , a Home NodeB, a Home eNodeB, or other suitable terminology) . In some examples, a network entity 105 (e.g., a base station 140) may be implemented in an aggregated (e.g., monolithic, standalone) base station architecture, which may be configured to utilize a protocol stack that is physically or logically integrated within one network entity (e.g., a network entity 105 or a single RAN node, such as a base station 140) .
[0041] In some examples, a network entity 105 may be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) , which may be configured to utilize a protocol stack that is physically or logically distributed among multiple network entities (e.g., network entities 105) , such as an integrated access and 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 105 may include one or more of a central unit (CU) , such as a CU 160, a distributed unit (DU) , such as a DU 165, a radio unit (RU) , such as an RU 170, a RAN Intelligent Controller (RIC) , such as an RIC 175 (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, such as an SMO system 180, or any combination thereof. An RU 170 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 105 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 105 may be located in distributed locations (e.g., separate physical locations) . In some examples, one or more of the network entities 105 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) ) .
[0042] The split of functionality between a CU 160, a DU 165, and an RU 170 is flexible and may support different functionalities depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, or any combinations thereof) are performed at a CU 160, a DU 165, or an RU 170. For example, a functional split of a protocol stack may be employed between a CU 160 and a DU 165 such that the CU 160 may support one or more layers of the protocol stack and the DU 165 may support one or more different layers of the protocol stack. In some examples, the CU 160 may host upper protocol layer (e.g., layer 3 (L3) , layer 2 (L2) ) functionality and signaling (e.g., Radio Resource Control (RRC) , service data adaptation protocol (SDAP) , Packet Data Convergence Protocol (PDCP) ) . The CU 160 (e.g., one or more CUs) may be connected to a DU 165 (e.g., one or more DUs) or an RU 170 (e.g., one or more RUs) , or some combination thereof, and the DUs 165, RUs 170, or both may host lower protocol layers, such as layer 1 (L1) (e.g., physical (PHY) layer) or 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. Additionally, or alternatively, a functional split of the protocol stack may be employed between a DU 165 and an RU 170 such that the DU 165 may support one or more layers of the protocol stack and the RU 170 may support one or more different layers of the protocol stack. The DU 165 may support one or multiple different cells (e.g., via one or multiple different RUs, such as an RU 170) . In some cases, a functional split between a CU 160 and a DU 165 or between a DU 165 and an RU 170 may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU 160, a DU 165, or an RU 170, while other functions of the protocol layer are performed by a different one of the CU 160, the DU 165, or the RU 170) . A CU 160 may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU 160 may be connected to a DU 165 via a midhaul communication link 162 (e.g., F1, F1-c, F1-u) , and a DU 165 may be connected to an RU 170 via a fronthaul communication link 168 (e.g., open fronthaul (FH) interface) . In some examples, a midhaul communication link 162 or a fronthaul communication link 168 may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities (e.g., one or more of the network entities 105) that are in communication via such communication links.
[0043] In some wireless communications systems (e.g., the wireless communications system 100) , infrastructure and spectral resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, providing an IAB network architecture (e.g., to a core network 130) . In some cases, in an IAB network, one or more of the network entities 105 (e.g., network entities 105 or IAB node (s) 104) may be partially controlled by each other. The IAB node (s) 104 may be referred to as a donor entity or an IAB donor. A DU 165 or an RU 170 may be partially controlled by a CU 160 associated with a network entity 105 or base station 140 (such as a donor network entity or a donor base station) . The one or more donor entities (e.g., IAB donors) may be in communication with one or more additional devices (e.g., IAB node (s) 104) via supported access and backhaul links (e.g., backhaul communication link (s) 120) . IAB node (s) 104 may include an IAB mobile termination (IAB-MT) controlled (e.g., scheduled) by one or more DUs (e.g., DUs 165) of a coupled IAB donor. An IAB-MT may be equipped with an independent set of antennas for relay of communications with UEs 115 or may share the same antennas (e.g., of an RU 170) of IAB node (s) 104 used for access via the DU 165 of the IAB node (s) 104 (e.g., referred to as virtual IAB-MT (vIAB-MT) ) . In some examples, the IAB node (s) 104 may include one or more DUs (e.g., DUs 165) that support communication links with additional entities (e.g., IAB node (s) 104, UEs 115) within the relay chain or configuration of the access network (e.g., downstream) . In such cases, one or more components of the disaggregated RAN architecture (e.g., the IAB node (s) 104 or components of the IAB node (s) 104) may be configured to operate according to the techniques described herein.
[0044] In the case of the techniques described herein applied in the context of a disaggregated RAN architecture, one or more components of the disaggregated RAN architecture may be configured to support test as described herein. For example, some operations described as being performed by a UE 115 or a network entity 105 (e.g., a base station 140) may additionally, or alternatively, be performed by one or more components of the disaggregated RAN architecture (e.g., components such as an IAB node, a DU 165, a CU 160, an RU 170, an RIC 175, an SMO system 180) .
[0045] A UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” may also be referred to as a unit, a station, a terminal, or a client, among other examples. A UE 115 may also include or may be referred to as a personal electronic device such as a cellular phone, a personal digital assistant (PDA) , a tablet computer, a laptop computer, or a personal computer. In some examples, a UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communications (MTC) device, among other examples, which may be implemented in various objects such as appliances, vehicles, or meters, among other examples.
[0046] The UEs 115 described herein may be able to communicate with various types of devices, such as UEs 115 that may sometimes operate as relays, as well as the network entities 105 and the network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1.
[0047] The UEs 115 and the network entities 105 may wirelessly communicate with one another via the communication link (s) 125 (e.g., one or more access links) using resources associated with one or more carriers. The term “carrier” may refer to a set of RF spectrum resources having a defined PHY layer structure for supporting the communication link (s) 125. For example, a carrier used for the communication link (s) 125 may include a portion of an RF spectrum band (e.g., a bandwidth part (BWP) ) that is operated according to one or more PHY layer channels for a given RAT (e.g., LTE, LTE-A, LTE-A Pro, NR) . Each PHY layer channel may carry acquisition signaling (e.g., synchronization signals, system information) , control signaling that coordinates operation for the carrier, user data, or other signaling. The wireless communications system 100 may support communication with a UE 115 using carrier aggregation or multi-carrier operation. A UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers. Communication between a network entity 105 and other devices may refer to communication between the devices and any portion (e.g., entity, sub-entity) of a network entity 105. For example, the terms “transmitting, ” “receiving, ” or “communicating, ” when referring to a network entity 105, may refer to any portion of a network entity 105 (e.g., a base station 140, a CU 160, a DU 165, a RU 170) of a RAN communicating with another device (e.g., directly or via one or more other network entities, such as one or more of the network entities 105) .
[0048] Signal waveforms transmitted via a carrier may be made up of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM) ) . In a system employing MCM techniques, a resource element may refer to resources of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, in which case the symbol period and subcarrier spacing may be inversely related. The quantity of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both) , such that a relatively higher quantity of resource elements (e.g., in a transmission duration) and a relatively higher order of a modulation scheme may correspond to a relatively higher rate of communication. A wireless communications resource may refer to a combination of an RF spectrum resource, a time resource, and a spatial resource (e.g., a spatial layer, a beam) , and the use of multiple spatial resources may increase the data rate or data integrity for communications with a UE 115.
[0049] The time intervals for the network entities 105 or the UEs 115 may be expressed in multiples of a basic time unit which may, for example, refer to a sampling period of Ts=1 / (Δfmax·Nf) seconds, for which Δfmax may represent a supported subcarrier spacing, and Nf may represent a supported discrete Fourier transform (DFT) size. Time intervals of a communications resource may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms) ) . Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023) .
[0050] Each frame may include multiple consecutively-numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a quantity of slots. Alternatively, each frame may include a variable quantity of slots, and the quantity of slots may depend on subcarrier spacing. Each slot may include a quantity of symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period) . In some wireless communications systems, such as the wireless communications system 100, a slot may further be divided into multiple mini-slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., Nf) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.
[0051] A subframe, a slot, a mini-slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and may be referred to as a transmission time interval (TTI) . In some examples, the TTI duration (e.g., a quantity of symbol periods in a TTI) may be variable. Additionally, or alternatively, the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs) ) .
[0052] Physical channels may be multiplexed for communication using a carrier according to various techniques. A physical control channel and a physical data channel may be multiplexed for signaling via a downlink carrier, for example, using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET) ) for a physical control channel may be defined by a set of symbol periods and may extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESETs) may be configured for a set of the UEs 115. For example, one or more of the UEs 115 may monitor or search control regions for control information according to one or more search space sets, and each search space set may include one or multiple control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to an amount of control channel resources (e.g., control channel elements (CCEs) ) associated with encoded information for a control information format having a given payload size. Search space sets may include common search space sets configured for sending control information to UEs 115 (e.g., one or more UEs) or may include UE-specific search space sets for sending control information to a UE 115 (e.g., a specific UE) .
[0053] A network entity 105 may provide communication coverage via one or more cells, for example a macro cell, a small cell, a hot spot, or other types of cells, or any combination thereof. The term “cell” may refer to a logical communication entity used for communication with a network entity 105 (e.g., using a carrier) and may be associated with an identifier for distinguishing neighboring cells (e.g., a physical cell identifier (PCI) , a virtual cell identifier (VCID) ) . In some examples, a cell also may refer to a coverage area 110 or a portion of a coverage area 110 (e.g., a sector) over which the logical communication entity operates. Such cells may range from smaller areas (e.g., a structure, a subset of structure) to larger areas depending on various factors such as the capabilities of the network entity 105. For example, a cell may be or include a building, a subset of a building, or exterior spaces between or overlapping with coverage areas 110, among other examples.
[0054] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by the UEs 115 with service subscriptions with the network provider supporting the macro cell. A small cell may be associated with a network entity 105 operating with lower power (e.g., a base station 140 operating with lower power) relative to a macro cell, and a small cell may operate using the same or different (e.g., licensed, unlicensed) frequency bands as macro cells. Small cells may provide unrestricted access to the UEs 115 with service subscriptions with the network provider or may provide restricted access to the UEs 115 having an association with the small cell (e.g., the UEs 115 in a closed subscriber group (CSG) , the UEs 115 associated with users in a home or office) . A network entity 105 may support one or more cells and may also support communications via the one or more cells using one or multiple component carriers.
[0055] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT) , enhanced mobile broadband (eMBB) ) that may provide access for different types of devices.
[0056] In some examples, a network entity 105 (e.g., a base station 140, an RU 170) may be movable and therefore provide communication coverage for a moving coverage area, such as the coverage area 110. In some examples, coverage areas 110 (e.g., different coverage areas) associated with different technologies may overlap, but the coverage areas 110 (e.g., different coverage areas) may be supported by the same network entity (e.g., a network entity 105) . In some other examples, overlapping coverage areas, such as a coverage area 110, associated with different technologies may be supported by different network entities (e.g., the network entities 105) . The wireless communications system 100 may include, for example, a heterogeneous network in which different types of the network entities 105 support communications for coverage areas 110 (e.g., different coverage areas) using the same or different RATs.
[0057] The wireless communications system 100 may be configured to support ultra-reliable communications or low-latency communications, or various combinations thereof. For example, the wireless communications system 100 may be configured to support ultra-reliable low-latency communications (URLLC) . The UEs 115 may be designed to support ultra-reliable, low-latency, or critical functions. Ultra-reliable communications may include private communication or group communication and may be supported by one or more services such as push-to-talk, video, or data. Support for ultra-reliable, low-latency functions may include prioritization of services, and such services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, and ultra-reliable low-latency may be used interchangeably herein.
[0058] In some examples, a UE 115 may be configured to support communicating directly with other UEs (e.g., one or more of the UEs 115) via a device-to-device (D2D) communication link, such as a D2D communication link 135 (e.g., in accordance with a peer-to-peer (P2P) , D2D, or sidelink protocol) . In some examples, one or more UEs 115 of a group that are performing D2D communications may be within the coverage area 110 of a network entity 105 (e.g., a base station 140, an RU 170) , which may support aspects of such D2D communications being configured by (e.g., scheduled by) the network entity 105. In some examples, one or more UEs 115 of such a group may be outside the coverage area 110 of a network entity 105 or may be otherwise unable to or not configured to receive transmissions from a network entity 105. In some examples, groups of the UEs 115 communicating via D2D communications may support a one-to-many (1: M) system in which each UE 115 transmits to one or more of the UEs 115 in the group. In some examples, a network entity 105 may facilitate the scheduling of resources for D2D communications. In some other examples, D2D communications may be carried out between the UEs 115 without an involvement of a network entity 105.
[0059] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or 5G core (5GC) , which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management function (AMF) ) and at least one 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) ) . The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for the UEs 115 served by the network entities 105 (e.g., base stations 140) associated with the core network 130. User IP packets may be transferred through the user plane entity, which may provide IP address allocation as well as other functions. The user plane entity may be connected to IP services 150 for one or more network operators. The IP services 150 may include access to the Internet, Intranet (s) , an IP Multimedia Subsystem (IMS) , or a Packet-Switched Streaming Service.
[0060] The wireless communications system 100 may operate using one or more frequency bands, which may be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz) . Generally, the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, which may be referred to as clusters, but the waves may penetrate structures sufficiently for a macro cell to provide service to the UEs 115 located indoors. Communications using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than one hundred kilometers) compared to communications using the smaller frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.
[0061] The wireless communications system 100 may utilize both licensed and unlicensed RF spectrum bands. For example, the wireless communications system 100 may employ License Assisted Access (LAA) , LTE-Unlicensed (LTE-U) RAT, or NR technology using an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band. While operating using unlicensed RF spectrum bands, devices such as the network entities 105 and the UEs 115 may employ carrier sensing for collision detection and avoidance. In some examples, operations using unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating using a licensed band (e.g., LAA) . Operations using unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.
[0062] A network entity 105 (e.g., a base station 140, an RU 170) or a UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of a network entity 105 or a UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, antennas or antenna arrays associated with a network entity 105 may be located at diverse geographic locations. A network entity 105 may include an antenna array with a set of rows and columns of antenna ports that the network entity 105 may use to support beamforming of communications with a UE 115. Likewise, a UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally, or alternatively, an antenna panel may support RF beamforming for a signal transmitted via an antenna port.
[0063] The network entities 105 or the UEs 115 may use MIMO communications to exploit multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing. The multiple signals may, for example, be transmitted by the transmitting device via different antennas or different combinations of antennas. Likewise, the multiple signals may be received by the receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry information associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords) . Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO) , for which multiple spatial layers are transmitted to the same receiving device, and multiple-user MIMO (MU-MIMO) , for which multiple spatial layers are transmitted to multiple devices.
[0064] Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a network entity 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining the signals communicated via antenna elements of an antenna array such that some signals propagating along particular orientations with respect to an antenna array experience constructive interference while others experience destructive interference. The adjustment of signals communicated via the antenna elements may include a transmitting device or a receiving device applying amplitude offsets, phase offsets, or both to signals carried via the antenna elements associated with the device. The adjustments associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., with respect to the antenna array of the transmitting device or receiving device, or with respect to some other orientation) .
[0065] A network entity 105 or a UE 115 may use beam sweeping techniques as part of beamforming operations. For example, a network entity 105 (e.g., a base station 140, an RU 170) may use multiple antennas or antenna arrays (e.g., antenna panels) to conduct beamforming operations for directional communications with a UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted by a network entity 105 multiple times along different directions. For example, the network entity 105 may transmit a signal according to different beamforming weight sets associated with different directions of transmission. Transmissions along different beam directions may be used to identify (e.g., by a transmitting device, such as a network entity 105, or by a receiving device, such as a UE 115) a beam direction for later transmission or reception by the network entity 105.
[0066] Some signals, such as data signals associated with a particular receiving device, may be transmitted by a transmitting device (e.g., a network entity 105 or a UE 115) along a single beam direction (e.g., a direction associated with the receiving device, such as another network entity 105 or UE 115) . In some examples, the beam direction associated with transmissions along a single beam direction may be determined based on a signal that was transmitted along one or more beam directions. For example, a UE 115 may receive one or more of the signals transmitted by the network entity 105 along different directions and may report to the network entity 105 an indication of the signal that the UE 115 received with a highest signal quality or an otherwise acceptable signal quality.
[0067] In some examples, transmissions by a device (e.g., by a network entity 105 or a UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or beamforming to generate a combined beam for transmission (e.g., from a network entity 105 to a UE 115) . The UE 115 may report feedback that indicates precoding weights for one or more beam directions, and the feedback may correspond to a configured set of beams across a system bandwidth or one or more sub-bands. The network entity 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS) , a channel state information reference signal (CSI-RS) ) , which may be precoded or unprecoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook) . Although these techniques are described with reference to signals transmitted along one or more directions by a network entity 105 (e.g., a base station 140, an RU 170) , a UE 115 may employ similar techniques for transmitting signals multiple times along different directions (e.g., for identifying a beam direction for subsequent transmission or reception by the UE 115) or for transmitting a signal along a single direction (e.g., for transmitting data to a receiving device) .
[0068] A receiving device (e.g., a UE 115) may perform reception operations in accordance with multiple receive configurations (e.g., directional listening) when receiving various signals from a transmitting device (e.g., a network entity 105) , such as synchronization signals, reference signals, beam selection signals, or other control signals. For example, a receiving device may perform reception in accordance with multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as “listening” according to different receive configurations or receive directions. In some examples, a receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal) . The single receive configuration may be aligned along a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have a highest signal strength, highest signal-to-noise ratio (SNR) , or otherwise acceptable signal quality based on listening according to multiple beam directions) .
[0069] A quasi co-location (QCL) relationship between one or more transmissions or signals may refer to a relationship between the antenna ports (and the corresponding signaling beams) of the respective transmissions. For example, one or more antenna ports may be implemented by a network entity 105 for transmitting at least one or more reference signals (such as a downlink reference signal, a synchronization signal block (SSB) , or the like) and control information transmissions to a UE 115. However, the channel properties of signals sent via the different antenna ports may be interpreted (e.g., by a receiving device) to be the same (e.g., despite the signals being transmitted from different antenna ports) , and the antenna ports (and the respective beams) may be described as being quasi co-located (QCLed) . QCLed signals may enable the UE 115 to derive the properties of a first signal (e.g., delay spread, Doppler spread, frequency shift, average power) transmitted via a first antenna port from measurements made on a second signal transmitted via a second antenna port. Put another way, if two antenna ports are categorized as being QCLed in terms of, for example, delay spread then the UE 115 may determine the delay spread for one antenna port (e.g., based on a received reference signal, such as CSI-RS) and then apply the result to both antenna ports. Such techniques may avoid the UE 115 determining the delay spread separately for each antenna port. In some cases, two antenna ports may be said to be spatially QCLed, and the properties of a signal sent over a directional beam may be derived from the properties of a different signal over another, different directional beam. That is, QCL relationships may relate to beam information for respective directional beams used for communications of various signals.
[0070] Different types of QCL relationships may describe the relationship between two different signals or antenna ports. For instance, QCL-TypeA may refer to a QCL relationship between signals including Doppler shift, Doppler spread, average delay, and delay spread. QCL-TypeB may refer to a QCL relationship including Doppler shift and Doppler spread, whereas QCL-TypeC may refer to a QCL relationship including Doppler shift and average delay. A QCL-TypeD may refer to a QCL relationship of spatial parameters, which may indicate a relationship between two or more directional beams used to communicate signals. Here, the spatial parameters may indicate that a first beam used to transmit a first signal may be similar (or the same) as another beam used to transmit a second, different, signal, or, that the same receive beam may be used to receive both the first and the second signal. Thus, the beam information for various beams may be derived through receiving signals from a transmitting device, where, in some cases, the QCL information or spatial information may help a receiving device efficient identify communications beams (e.g., without having to sweep through a large quantity of beams to identify a beam (e.g., the beam having a highest signal quality) ) . In addition, QCL relationships may exist for both uplink and downlink transmissions and, in some cases, a QCL relationship may also be referred to as spatial relationship information.
[0071] In some examples, TCI states may include one or more parameters associated with a QCL relationship between transmitted signals. For example, each TCI state includes parameters for configuring a QCL relationship between one or two downlink reference signals and the DMRS ports of PDSCH, the DMRS port of PDCCH or the CSI-RS port (s) of a CSI-RS resource. The QCL relationship is configured by a first higher layer parameter for the first downlink reference signal, and by a second higher layer parameter for the second downlink reference signal (if configured) . That is, a network entity 105 may configure a QCL relationship that provides a mapping between a reference signal and antenna ports of another signal, and the TCI state may be indicated to the UE 115 by the network entity 105. In some cases, a set of TCI states (e.g., a list of TCI states) may be indicated to a UE 115 via RRC signaling, where some quantity of TCI states may be configured via RRC and one or more TCI states may be indicated (e.g., activated) via a medium access control (MAC) -control element (MAC-CE) , and further indicated via DCI (e.g., within a CORESET) . The QCL relationship associated with the TCI state (and further established through higher-layer parameters) may provide the UE 115 with the QCL relationship for respective antenna ports and reference signals transmitted by the network entity 105.
[0072] The wireless communications system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or PDCP layer may be IP-based. An RLC layer may perform packet segmentation and reassembly to communicate via logical channels. A MAC layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer also may implement error detection techniques, error correction techniques, or both to support retransmissions to improve link efficiency. In the control plane, an RRC layer may provide establishment, configuration, and maintenance of an RRC connection between a UE 115 and a network entity 105 or a core network 130 supporting radio bearers for user plane data. A PHY layer may map transport channels to physical channels.
[0073] Techniques described herein may enable a UE 115 to perform UE-initiated beam reporting. For example, the operation of a UE 115 may be based on definitions of which beams the UE 115 may include in a UE-initiated beam report. In some examples, the UE 115 may identify one or more active or indicated beams (e.g., associated with one or more TCI states) based on activated TCI states, indicated TCI states, and / or TCI states associated with channels that use TCI states other than the activated or indicated TCI states.
[0074] The described techniques may further enable a network entity 105 to configure the UE 115 with trigger events for UE-initiated beam reporting. For example, the network entity 105 may configure the UE 115 to transmit a beam report when a quality of the one or more active or indicated beams falls below a threshold, when a quality of one or more non-active beams (e.g., associated with one or more TCI states other than the activated or indicated TCI states) is above a threshold, when a quality of the one or more non-active beams is a threshold amount above a quality of the one or more active or indicated beams, when a quality (e.g., a L1 RSRP) of a new beam becomes a threshold amount better than a reference signal with an Mth best quality of one or more reference signals derived from an activated TCI state, and so on. In some examples, M may be a parameter that is configured at the UE 115 via RRC messaging (e.g., based on UE capability signaling) . The UE 115 may determine to transmit a report, for example, when one or more additional beams (e.g., a beam with a quality above a threshold, a new beam, a beam that is different from one or more beams currently in use by the UE 115) is detected, or may indicate to the network entity 105 (e.g., via the beam report) whether one or more additional beams are detected.
[0075] FIG. 2 shows an example of a wireless communications system 200 that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure. The wireless communications system 200 may implement or may be implemented by aspects of the wireless communications system 100. For example, the wireless communications system 200 may be implemented by a UE 115 (e.g., a UE 115-a) or a network entity 105 (e.g., a network entity 105-a, a network entity 105-b, a network entity 105-c) , which may be examples of the corresponding devices as described with reference to FIG. 1.
[0076] In some examples of the wireless communications system 200, a UE 115-a may operate in a cell 205-a (e.g., a first active serving cell associated with a first PCI) of a network entity 105-a. The UE 115-a may receive signaling from the network entity 105-a via a downlink channel 215 and may transmit signaling to the network entity 105-a via an uplink channel 220. The UE 115-a may communicate with the network entity 105-a using one or more beams 210 (e.g., a beam 210-a, a beam 210-b, a beam 210-c) . Each of the beams 210 may be associated with a TCI state.
[0077] In some examples, the network entity 105-a may configure the UE 115-a with one or more beams 210 for communication with the network entity 105-a. For example, the network entity 105-a may transmit a control message (e.g., a MAC-CE or RRC message) including an indication of one or more activated TCI states (e.g., activated unified TCI states) that defined one or more beams via with the UE 115-a may communicate with the network entity 105-a. The network entity 105-a may transmit a control message (e.g., DCI, MAC-CE) indicating a unified TCI state of the activated unified TCI states defining a beam 210 for the UE 115-a to use to communicate with the network entity 105-a. As described herein, a unified TCI state may be a TCI state that is applied to multiple channels (e.g., for uplink and downlink channels) , and the unified TCI state may refer to a joint TCI state (e.g., for both uplink and downlink channels / reference signals) , an uplink TCI state (e.g., for uplink channels / reference signals) , or a downlink TCI state (e.g., for downlink channels / reference signals) .
[0078] In some examples, however, the indicated unified TCI state may be associated with a first beam 210-a that is a lower beam quality (e.g., a lower signal strength, a lower SNR) than one or more other beams 210. The one or more other beams 210 may be beams associated with the cell 205-a of the network entity 105-a (e.g., the beam 210-b, the beam 210-c) , such as in the example of intra-cell beam management. As described herein, the indicated unified TCI state may be the unified TCI state applicable at least for UE-specific physical downlink shared channel (PUSCH) or physical downlink control channel (PDCCH) (e.g., for single-TRP (sTRP) operations) .
[0079] In some examples, for inter-cell multi-TRP (mTRP) communications, the UE 115-a may communicate with one or more additional network entities 105 (e.g., a network entity 105-b associated with an additional active cell 205-b, a network entity 105-c associated with a non-active cell 205-c) . The network entity 105-b may be a non-serving cell that uses beams 210 defined by one or more active TCI states and associated with a PCI different than the PCI of the serving cell 205-a. The network entity 105-c may be a non-serving cell that uses beams 210 defined by one or more non-active TCI states and associated with a PCI different than the PCI of the serving cell 205-a and the PCI of the non-serving cell 205-b. In such examples, the one or more other beams 210 may be beams 210 associated with the network entity 105-b (e.g., a beam 210-e, a beam 210-d) , or beams associated with the network entity 105-c (e.g., a beam 210-f, a beam 210-g) . In such examples, the UE 115-a may experience a relatively lower quality of communications using the beam 210-a associated with the indicated unified TCI state than using the one or more other beams.
[0080] In some examples, the network entity 105-a may indicate for the UE 115-a to perform a beam reporting procedure. That is, the network entity 105-a may transmit a message indicating for the UE 115-a to measure a quality of one or more beams (e.g., beams indicated by the message) and to transmit a report of the measured beam qualities. In some examples (e.g., for inter-cell mTRP beam management) , the network entity 105-a may indicate a resource set (e.g., a CSI-SSB-ResourceSet) for beam quality measurements (e.g., L1-RSRP measurements) indicating a set of SSB indices associated with PCIs of each cell 205 configured for inter-cell beam management or inter-cell mTRP (e.g., the cell 205-a, the cell 205-b, the cell 205-c) . The UE 115-a may therefore measure and report qualities of each beam 210 associated with the indicated SSB indices.
[0081] The network entity 105-a may accordingly configure the UE 115-a to communicate via a beam 210 with a relatively higher quality than the beam 210-a associated with the indicated unified TCI state. However, such network-initiated beam reporting may result in relatively increased overhead and latency as compared to UE-initiated, event-driven beam reporting. That is, UE-initiated beam reporting may result in relatively faster beam switching than network-initiated beam reporting.
[0082] Accordingly, techniques described herein may enable the UE 115-a to initiate beam reporting (e.g., for inter-cell or intra-cell beam management) , which may result in relatively faster beam switching and therefore decreased latency, decreased overhead, and increased quality of communications in the wireless communications system 200. In some examples, the network entity 105-a may transmit a beam report event configuration 225 to the UE 115-a indicating one or more events to trigger the UE 115-a to initiate a beam reporting procedure. The beam report event configuration 225 may be included in a RRC message, a MAC-CE message, or a DCI message.
[0083] The one or more events may be based on measurements of quality (e.g., (e.g., a signal strength, a L1-RSRP, an SNR, a L1 signal-to-interference-plus-noise ratio (SINR) ) of beams 210, such as measurements of synchronization signal blocks (SSBs) and / or channel state information (CSI) reference signals (RSs) (e.g., periodic CSI-RSs, semi-persistent CSI-RSs, aperiodic CSI-RSs) transmitted via the beams 210, or one or more additional measurements (e.g., via a zero power (ZP) or non-zero power (NZP) interference measurement resources (IMRs) and / or channel measurement resources (CMRs) ) .
[0084] In some aspects, the one or more events may include an event in which a quality of one or more current beams 210 is worse than a first threshold, an event in which a quality of one or more additional beams 210 is greater than a second threshold, an event in which the quality of the one or more additional beams 210 is a third threshold amount better (e.g., higher) than the quality of the one or more current beams 210, an event in which a quality of beam (e.g., a new beam) becomes a threshold amount better than a reference signal with an Mth best quality of one or more reference signals derived from an activated TCI state, or some combination of events described herein. In some examples, M may be a parameter that is configured at the UE 115 via RRC messaging (e.g., based on UE capability signaling) . The events described herein are illustrative examples, and the beam report event configuration 225 may indicate one or more additional or alternative events to trigger the UE 115-a to perform UE-initiated beam reporting.
[0085] Upon satisfaction of a condition or trigger associated with the event (e.g., one or more beam qualities meeting the associated threshold) , the UE 115-a may transmit a beam report 230 to the network entity 105-a. The beam report 230 may indicate the one or more current beams, the one or more additional beams, respective qualities associated with the one or more current beams and / or the one or more additional beams, or any combination thereof.
[0086] In some aspects, the one or more current beams 210 may include the beam 210-a associated with the indicated unified TCI state (e.g., for channels following the indicated unified TCI state, such as a PDSCH and / or a UE-specific control resource set (CORESET) ) . Additionally, or alternatively, the one or more current beams 210 may include beams 210 associated with all active unified TCI states. That is, if multiple TCI states are activated for PDSCHs, the UE 115-a may measure a quality of multiple (e.g., all) beams 210 associated with the activated unified TCI states.
[0087] In some aspects, the one or more current beams 210 may include beams associated with TCI states that are indicated for channels using TCI states other than the indicated unified TCI state (e.g., in addition to or instead of the beam 210-a associated with the indicated unified TCI state and / or the beams 210 associated with the one or more active unified TCI states) . The channels using TCI states other than the indicated unified TCI state may include one or more CORESETs (e.g., CORESET 0 and / or one or more other CORESETs associated with TCI states other than the indicated unified TCI state) .
[0088] In some examples, the UE 115-a may receive an indication of which beams are included in the current beams 210. For example, the beam report event configuration 225 or one or more other configuration messages (e.g., DCI, RRC, or MAC-CE messages) may indicate which beams (e.g., which TCI states) are included in the current beams 210. The configuration may be based on a processing capability of the UE 115-a. As an illustrative example, the beam report event configuration 225 may indicate that the current beams 210 include beams associated with the indicated unified TCI state, with the activated unified TCI states, or both.
[0089] In some aspects, if the one or more current beams 210 are associated with multiple TCI states (e.g., the indicated unified TCI state, the active unified TCI states, a TCI state associated with CORESET 0, and / or TCI states associated with other CORESETs) , the UE 115-a may transmit the beam report 230 if all of the associated TCI states (e.g., all reference signals transmitted via beams 210 associated with the TCI states) meet the condition to trigger the beam report 230. In some examples, the UE 115-a may transmit the beam report 230 if at least one of the associated TCI states (e.g., at least one reference signal transmitted via a beam 210 associated with at least one of the TCI states) meets the condition to trigger the beam report 230. In some examples, the UE 115-a may transmit the beam report 230 if an average quality of the associated TCI states (e.g., an average quality of reference signals transmitted via beams 210 associated with the TCI states) meets the condition to trigger the beam report 230.
[0090] In some examples, the UE 115-a may transmit the beam report 230 if a configured quantity of the associated TCI states (e.g., a configured quantity of reference signals transmitted via beams 210 associated with the TCI states) meet the condition to trigger the beam report 230. The network entity 105-a may transmit an indication of the configured quantity to the UE 115-a (e.g., via the beam report event configuration 225 or another control message such as an RRC, MAC-CE, or DCI message) .
[0091] In some aspects, for inter-cell beam management, the one or more events may include an event in which a quality of one or more current beams 210 associated with the PCI of the serving cell 205-a (and / or current beams 210 associated with the PCI of the additional active cell 205-b) is worse than a first threshold or an event in which a quality of one or more additional beams 210 associated with the PCI of the non-active cell 205-c is greater than a second threshold. In some examples, the one or more events may include an event in which the quality of the one or more additional beams 210 (e.g., additional beams associated with the non-active cell 205-c) is a third threshold amount better (e.g., higher) than the quality of the one or more current beams 210 (e.g., either or both of the current beams associated with the serving cell 205-a and the current beams associated with the additional active cell 205-b) .
[0092] In some aspects, if one or more of the PCI of the cell 205-a, the PCI of the cell 205-b, or the PCI of the cell 205-c are associated with multiple TCI states (e.g., the indicated unified TCI state, the active unified TCI states, a TCI state associated with CORESET 0, and / or TCI states associated with other CORESETs) , the UE 115-a may transmit the beam report 230 if all of the associated TCI states (e.g., all reference signals transmitted via beams 210 associated with the TCI states) meet the condition to trigger the beam report 230. In some examples, the UE 115-a may transmit the beam report 230 if at least one of the associated TCI states (e.g., at least one reference signal transmitted via a beam 210 associated with at least one of the TCI states) meets the condition to trigger the beam report 230. In some examples, the UE 115-a may transmit the beam report 230 if an average quality of the associated TCI states (e.g., an average quality of reference signals transmitted via beams 210 associated with the TCI states) meets the condition to trigger the beam report 230.
[0093] In some examples, the UE 115-a may transmit the beam report 230 if a configured quantity of the associated TCI states (e.g., a configured quantity of reference signals transmitted via beams 210 associated with the TCI states) meet the condition to trigger the beam report 230. The network entity 105-a may transmit an indication of the configured quantity to the UE 115-a (e.g., via the beam report event configuration 225 or another control message such as an RRC, MAC-CE, or DCI message) .
[0094] In some aspects, for intra-or inter-cell beam management, if the beam report event configuration 225 indicates for the UE 115-a to transmit the beam report 230 if the quality of the one or more current beams 210 is worse than the first threshold, the UE 115-a may determine if one or more additional beams 210 have a quality that is above a second threshold (e.g., or a quality that is at least a third threshold amount above the quality of the one or more current beams 210) . That is the one or more additional beams 210 should be of a better quality than (e.g., no worse than) the current beams 210. Such additional beams 210 may be referred to as new beams 210.
[0095] In some examples, the UE 115-a may transmit the beam report 230 if the UE 115-a identifies new beams 210, and may refrain from transmitting the beam report 230 if the UE 115-a does not identify new beams 210. Additionally, or alternatively, the UE 115-a may include an indication in the beam report 230 of whether the UE 115-a has identified a new beam 210. If the UE 115-a has identified a new beam 210, the UE 115-a may additionally indicate the new beam 210 (e.g., a TCI state associated with the new beam) via the beam report 230.
[0096] FIG. 3 shows an example of a process flow 300 that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure. The process flow 300 may implement or may be implemented by aspects of the wireless communications system 100 or the wireless communications system 200. For example, the process flow 300 may be implemented by a UE 115 (e.g., a UE 115-b) or a network entity 105 (e.g., a network entity 105‐d) , which may be examples of the corresponding devices as described with reference to FIGs. 1 and 2.
[0097] In the following description of the process flow 300, the operations between the UE 115‐b and the network entity 105‐d may occur in a different order than the example order shown and, in some examples, may be performed by one or more different devices other than those shown as examples. Some operations also may be omitted from the process flow 300, and other operations may be added to the process flow 300. Further, although some operations or signaling may be shown to occur at different times for discussion purposes, these operations may actually occur at the same time.
[0098] In some examples, the UE 115-a may operate in a serving cell of the network entity 105-d (e.g., with a first PCI) . At 305, the network entity 105-d may transmit a control message to the UE 115-b indicating a set of events to trigger transmission of a beam report (e.g., a beam report based on measurements of a set of beams associated with a serving cell, one or more non-serving cells, or both) . In some examples, the control message may indicate the set of beams (e.g., unified TCI states associated with the set of beams) . In some examples (e.g., if the set of beams, the serving cell PCI, and / or the non-serving cell PCI is associated with multiple TCI states) , the control message may indicate whether the set of events trigger transmission of the beam report upon satisfaction of a trigger for one of the set of beams, all of the set of beams, a configured quantity of the set of beams, or an average quality of the set of beams.
[0099] In some examples, the set of events may include an event in which a quality (e.g., a strength, a SNR, a SNIR) of one or more current beams of the set of beams is below a first threshold. Additionally, or alternatively, the set of events may include an event in which a quality of one or more additional beams of the set of beams is above a second threshold. Additionally, or alternatively, the set of events may include an event in which the quality of the one or more additional beams is a third threshold above the quality of the one or more current beams. The one or more current beams may be associated with a PCI of the serving cell, a PCI of an additional active non-serving cell, or both. The one or more additional beams may be beams associated with the PCI of the serving cell, the PCI of an additional active non-serving cell, and / or a PCI of an additional non-active non-serving cell.
[0100] At 310, the UE 115-b may identify the one or more current beams for a first event of the set of events. The current beams may be associated with an indicated unified TCI state (e.g., indicated via MAC-CE or DCI) for a first set of channels, one or more active unified TCI states (e.g., activated via MAC-CE or RRC) for the first set of channels, one or more other TCI states associated with a second set of channels (e.g., one or more CORESETS that use TCI states other than the indicated unified TCI state) , or any combination thereof.
[0101] At 315, the UE 115-b may determine that a trigger condition related to the one or more current beams and / or the one or more additional beams is satisfied. The trigger condition may correspond to one or more of the set of events. In some examples (e.g., if the trigger condition is a condition in which the quality of one or more of the current beams is below the first threshold) , the UE 115-b may determine if one or more additional beams of the set of beams are associated with a higher quality than the one or more current beams. For example, the UE 115-b may determine that the one or more additional beams have a quality that is above the first threshold, above the second threshold, or is the third threshold amount above the quality of the one or more current beams. The UE 115-b may determine that the trigger condition is satisfied based on performing one or more measurements of the set of beams (e.g., signal strength measurements, SNR measurements, and / or SINR measurements of reference signals transmitted via the set of beams) .
[0102] In some examples, the set of beams may include a first subset of beams (e.g., with multiple TCI states) associated with a same PCI and / or the current beams may be associated with multiple TCI states. In such examples, the UE 115-b may determine the trigger condition is satisfied if the trigger is satisfied for one of the set of beams (e.g., one of the multiple TCI state) , all of the set of beams (e.g., all of the multiple TCI states) , a configured quantity of the set of beams (e.g., a configured quantity of the multiple TCI states) , or an average quality of the set of beams (e.g., an average quality of beams associated with all of the multiple TCI states) . The UE 115-b may determine how many of the set of beams may satisfy the trigger condition to trigger a beam report or whether an average quality of the current beams may trigger the beam report (e.g., based on the indication in the control message) .
[0103] At 320, the UE 115-b may transmit the beam report to the network entity 105-d. The beam report may indicate qualities (e.g., signal strength, SNR, SINR) for the one or more current beams and / or the one or more additional beams based on the measurements of the set of beams. In some examples, the UE 115-b may determine to transmit the beam report based on identifying the one or more additional beams that have a higher quality than the one or more current beams. Additionally, or alternatively, the UE 115-b may indicate, via the beam report, whether the UE 115-b identified the one or more additional beams that have a higher quality than the one or more current beams. For example, the UE 115-b may transmit an indication of the one or more additional beams (e.g., TCI states and / or PCIs associated with the one or more additional beams, qualities of the one or more additional beams) via the beam report.
[0104] FIG. 4 shows a block diagram 400 of a device 405 that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure. The device 405 may be an example of aspects of a UE 115 as described herein. The device 405 may include a receiver 410, a transmitter 415, and a communications manager 420. The device 405, or one or more components of the device 405 (e.g., the receiver 410, the transmitter 415, the communications manager 420) , may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0105] The receiver 410 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to UE-initiated beam reporting for beam management) . Information may be passed on to other components of the device 405. The receiver 410 may utilize a single antenna or a set of multiple antennas.
[0106] The transmitter 415 may provide a means for transmitting signals generated by other components of the device 405. For example, the transmitter 415 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to UE-initiated beam reporting for beam management) . In some examples, the transmitter 415 may be co-located with a receiver 410 in a transceiver module. The transmitter 415 may utilize a single antenna or a set of multiple antennas.
[0107] The communications manager 420, the receiver 410, the transmitter 415, or various combinations or components thereof may be examples of means for performing various aspects of UE-initiated beam reporting for beam management as described herein. For example, the communications manager 420, the receiver 410, the transmitter 415, or various combinations or components thereof may be capable of performing one or more of the functions described herein.
[0108] In some examples, the communications manager 420, the receiver 410, the transmitter 415, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include at least one of a processor, a digital signal processor (DSP) , a central processing unit (CPU) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure. In some examples, at least one processor and at least one memory coupled with the at least one processor may be configured to perform one or more of the functions described herein (e.g., by one or more processors, individually or collectively, executing instructions stored in the at least one memory) .
[0109] Additionally, or alternatively, the communications manager 420, the receiver 410, the transmitter 415, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by at least one processor (e.g., referred to as a processor-executable code) . If implemented in code executed by at least one processor, the functions of the communications manager 420, the receiver 410, the transmitter 415, or various combinations or components thereof may be performed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure) .
[0110] In some examples, the communications manager 420 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 410, the transmitter 415, or both. For example, the communications manager 420 may receive information from the receiver 410, send information to the transmitter 415, or be integrated in combination with the receiver 410, the transmitter 415, or both to obtain information, output information, or perform various other operations as described herein.
[0111] The communications manager 420 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 420 is capable of, configured to, or operable to support a means for receiving a control message indicating a configuration of a set of events that trigger a transmission of a beam report, where the beam report is based on measurements of a set of beams associated with a serving cell or a non-serving cell, or both. The communications manager 420 is capable of, configured to, or operable to support a means for identifying, for an event of the set of events, one or more beams from the set of beams, where the one or more beams are identified based on one or more indicated unified TCI states for a first set of channels, one or more activated unified TCI states, one or more other unified TCI states that are indicated for a second set of channels different from the first set of channels, or any combination thereof. The communications manager 420 is capable of, configured to, or operable to support a means for transmitting the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied.
[0112] By including or configuring the communications manager 420 in accordance with examples as described herein, the device 405 (e.g., at least one processor controlling or otherwise coupled with the receiver 410, the transmitter 415, the communications manager 420, or a combination thereof) may support techniques for UE-initiated beam reporting, which may result in more efficient utilization of communication resources.
[0113] FIG. 5 shows a block diagram 500 of a device 505 that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure. The device 505 may be an example of aspects of a device 405 or a UE 115 as described herein. The device 505 may include a receiver 510, a transmitter 515, and a communications manager 520. The device 505, or one or more components of the device 505 (e.g., the receiver 510, the transmitter 515, the communications manager 520) , may include at least one processor, which may be coupled with at least one memory, to support the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0114] The receiver 510 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to UE-initiated beam reporting for beam management) . Information may be passed on to other components of the device 505. The receiver 510 may utilize a single antenna or a set of multiple antennas.
[0115] The transmitter 515 may provide a means for transmitting signals generated by other components of the device 505. For example, the transmitter 515 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to UE-initiated beam reporting for beam management) . In some examples, the transmitter 515 may be co-located with a receiver 510 in a transceiver module. The transmitter 515 may utilize a single antenna or a set of multiple antennas.
[0116] The device 505, or various components thereof, may be an example of means for performing various aspects of UE-initiated beam reporting for beam management as described herein. For example, the communications manager 520 may include a beam report configuration manager 525, a beam identifying manager 530, a beam report transmission manager 535, or any combination thereof. The communications manager 520 may be an example of aspects of a communications manager 420 as described herein. In some examples, the communications manager 520, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 510, the transmitter 515, or both. For example, the communications manager 520 may receive information from the receiver 510, send information to the transmitter 515, or be integrated in combination with the receiver 510, the transmitter 515, or both to obtain information, output information, or perform various other operations as described herein.
[0117] The communications manager 520 may support wireless communications in accordance with examples as disclosed herein. The beam report configuration manager 525 is capable of, configured to, or operable to support a means for receiving a control message indicating a configuration of a set of events that trigger a transmission of a beam report, where the beam report is based on measurements of a set of beams associated with a serving cell or a non-serving cell, or both. The beam identifying manager 530 is capable of, configured to, or operable to support a means for identifying, for an event of the set of events, one or more beams from the set of beams, where the one or more beams are identified based on one or more indicated unified TCI states for a first set of channels, one or more activated unified TCI states, one or more other unified TCI states that are indicated for a second set of channels different from the first set of channels, or any combination thereof. The beam report transmission manager 535 is capable of, configured to, or operable to support a means for transmitting the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied.
[0118] FIG. 6 shows a block diagram 600 of a communications manager 620 that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure. The communications manager 620 may be an example of aspects of a communications manager 420, a communications manager 520, or both, as described herein. The communications manager 620, or various components thereof, may be an example of means for performing various aspects of UE-initiated beam reporting for beam management as described herein. For example, the communications manager 620 may include a beam report configuration manager 625, a beam identifying manager 630, a beam report transmission manager 635, or any combination thereof. Each of these components, or components or subcomponents thereof (e.g., one or more processors, one or more memories) , may communicate, directly or indirectly, with one another (e.g., via one or more buses) .
[0119] The communications manager 620 may support wireless communications in accordance with examples as disclosed herein. The beam report configuration manager 625 is capable of, configured to, or operable to support a means for receiving a control message indicating a configuration of a set of events that trigger a transmission of a beam report, where the beam report is based on measurements of a set of beams associated with a serving cell or a non-serving cell, or both. The beam identifying manager 630 is capable of, configured to, or operable to support a means for identifying, for an event of the set of events, one or more beams from the set of beams, where the one or more beams are identified based on one or more indicated unified TCI states for a first set of channels, one or more activated unified TCI states, one or more other unified TCI states that are indicated for a second set of channels different from the first set of channels, or any combination thereof. The beam report transmission manager 635 is capable of, configured to, or operable to support a means for transmitting the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied.
[0120] In some examples, the event includes conditions in which a first quality of a first subset of beams of the set of beams is below a first threshold. In some examples, the first subset of beams is associated with a PCI of the serving cell, a PCI of an additional active cell, or both.
[0121] In some examples, the beam identifying manager 630 is capable of, configured to, or operable to support a means for determining whether one or more additional beams of the set of beams are associated with a second quality that satisfies the first threshold, where the beam report includes an indication of whether the one or more additional beams are associated with the second quality that satisfies the first threshold.
[0122] In some examples, to support transmitting the beam report, the beam report transmission manager 635 is capable of, configured to, or operable to support a means for transmitting the beam report based on identifying one or more additional beams of the set of beams that are associated with a second quality that is higher than the first quality.
[0123] In some examples, the event includes conditions in which a quality of a second subset of beams of the set of beams satisfies a second threshold. In some examples, the second subset of beams is associated with a PCI of the non-serving cell.
[0124] In some examples, the event includes conditions in which a quality of a second subset of beams of the set of beams is a threshold amount above a quality of a first subset of beams of the set of beams. In some examples, the first subset of beams is associated with a PCI of the serving cell, a PCI of an additional active cell, or both. In some examples, the second subset of beams is associated with a PCI of the non-serving cell.
[0125] In some examples, to support transmitting the beam report, the beam report transmission manager 635 is capable of, configured to, or operable to support a means for transmitting the beam report in response to the trigger being satisfied for each beam of the first subset of beams.
[0126] In some examples, to support transmitting the beam report, the beam report transmission manager 635 is capable of, configured to, or operable to support a means for transmitting the beam report in response to the trigger being satisfied for at least one beam of the first subset of beams.
[0127] In some examples, to support transmitting the beam report, the beam report transmission manager 635 is capable of, configured to, or operable to support a means for transmitting the beam report in response to the trigger being satisfied for a configured quantity of beams of the first subset of beams.
[0128] In some examples, to support transmitting the beam report, the beam report transmission manager 635 is capable of, configured to, or operable to support a means for transmitting the beam report in response to an average quality of the first subset of beams satisfying the trigger.
[0129] In some examples, to support transmitting the beam report, the beam report transmission manager 635 is capable of, configured to, or operable to support a means for transmitting the beam report based on the trigger being satisfied for each TCI state of the set of multiple TCI states.
[0130] In some examples, to support transmitting the beam report, the beam report transmission manager 635 is capable of, configured to, or operable to support a means for transmitting the beam report based on the trigger being satisfied for at least one TCI state of the set of multiple TCI states.
[0131] In some examples, to support transmitting the beam report, the beam report transmission manager 635 is capable of, configured to, or operable to support a means for transmitting the beam report based on the trigger being satisfied for a quantity of TCI states of the set of multiple TCI states.
[0132] In some examples, to support transmitting the beam report, the beam report transmission manager 635 is capable of, configured to, or operable to support a means for transmitting the beam report based on an average quality of the set of multiple TCI states satisfying one or more conditions associated with the trigger.
[0133] In some examples, the one or more beams are associated with the one or more indicated unified TCI states for the first set of channels. In some examples, the one or more beams are associated with the one or more activated unified TCI states. In some examples, the one or more beams are associated with the one or more indicated unified TCI states for the first set of channels and further associated with the one or more other unified TCI states that are indicated for the second set of channels different from the first set of channels.
[0134] FIG. 7 shows a diagram of a system 700 including a device 705 that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure. The device 705 may be an example of or include components of a device 405, a device 505, or a UE 115 as described herein. The device 705 may communicate (e.g., wirelessly) with one or more other devices (e.g., network entities 105, UEs 115, or a combination thereof) . The device 705 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager 720, an input / output (I / O) controller, such as an I / O controller 710, a transceiver 715, one or more antennas 725, at least one memory 730, code 735, and at least one processor 740. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 745) .
[0135] The I / O controller 710 may manage input and output signals for the device 705. The I / O controller 710 may also manage peripherals not integrated into the device 705. In some cases, the I / O controller 710 may represent a physical connection or port to an external peripheral. In some cases, the I / O controller 710 may utilize an operating system such as or another known operating system. Additionally, or alternatively, the I / O controller 710 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device. In some cases, the I / O controller 710 may be implemented as part of one or more processors, such as the at least one processor 740. In some cases, a user may interact with the device 705 via the I / O controller 710 or via hardware components controlled by the I / O controller 710.
[0136] In some cases, the device 705 may include a single antenna. However, in some other cases, the device 705 may have more than one antenna, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 715 may communicate bi-directionally via the one or more antennas 725 using wired or wireless links as described herein. For example, the transceiver 715 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 715 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 725 for transmission, and to demodulate packets received from the one or more antennas 725. The transceiver 715, or the transceiver 715 and one or more antennas 725, may be an example of a transmitter 415, a transmitter 515, a receiver 410, a receiver 510, or any combination thereof or component thereof, as described herein.
[0137] The at least one memory 730 may include random access memory (RAM) and read-only memory (ROM) . The at least one memory 730 may store computer-readable, computer-executable, or processor-executable code, such as the code 735. The code 735 may include instructions that, when executed by the at least one processor 740, cause the device 705 to perform various functions described herein. The code 735 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 735 may not be directly executable by the at least one processor 740 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 730 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.
[0138] The at least one processor 740 may include one or more intelligent hardware devices (e.g., one or more general-purpose processors, one or more DSPs, one or more CPUs, one or more graphics processing units (GPUs) , one or more neural processing units (NPUs) (also referred to as neural network processors or deep learning processors (DLPs) ) , one or more microcontrollers, one or more ASICs, one or more FPGAs, one or more programmable logic devices, discrete gate or transistor logic, one or more discrete hardware components, or any combination thereof) . In some cases, the at least one processor 740 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into the at least one processor 740. The at least one processor 740 may be configured to execute computer-readable instructions stored in a memory (e.g., the at least one memory 730) to cause the device 705 to perform various functions (e.g., functions or tasks supporting UE-initiated beam reporting for beam management) . For example, the device 705 or a component of the device 705 may include at least one processor 740 and at least one memory 730 coupled with or to the at least one processor 740, the at least one processor 740 and the at least one memory 730 configured to perform various functions described herein.
[0139] In some examples, the at least one processor 740 may include multiple processors and the at least one memory 730 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 described herein. In some examples, the at least one processor 740 may be a component of a processing system, which may refer to a system (such as a series) of machines, circuitry (including, for example, one or both of processor circuitry (which may include the at least one processor 740) and memory circuitry (which may include the at least one memory 730) ) , or components, that receives or obtains inputs and processes the inputs to produce, generate, or obtain a set of outputs. The processing system may be configured to perform one or more of the functions described herein. For example, the at least one processor 740 or a processing system including the at least one processor 740 may be configured to, configurable to, or operable to cause the device 705 to perform one or more of the functions described herein. Further, as described herein, being “configured to, ” being “configurable to, ” and being “operable to” may be used interchangeably and may be associated with a capability, when executing code 735 (e.g., processor-executable code) stored in the at least one memory 730 or otherwise, to perform one or more of the functions described herein.
[0140] The communications manager 720 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 720 is capable of, configured to, or operable to support a means for receiving a control message indicating a configuration of a set of events that trigger a transmission of a beam report, where the beam report is based on measurements of a set of beams associated with a serving cell or a non-serving cell, or both. The communications manager 720 is capable of, configured to, or operable to support a means for identifying, for an event of the set of events, one or more beams from the set of beams, where the one or more beams are identified based on one or more indicated unified TCI states for a first set of channels, one or more activated unified TCI states, one or more other unified TCI states that are indicated for a second set of channels different from the first set of channels, or any combination thereof. The communications manager 720 is capable of, configured to, or operable to support a means for transmitting the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied.
[0141] By including or configuring the communications manager 720 in accordance with examples as described herein, the device 705 may support techniques for UE-initiated beam reporting, which may result in improved communication reliability, reduced latency, more efficient utilization of communication resources, and improved coordination between devices.
[0142] In some examples, the communications manager 720 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 715, the one or more antennas 725, or any combination thereof. Although the communications manager 720 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 720 may be supported by or performed by the at least one processor 740, the at least one memory 730, the code 735, or any combination thereof. For example, the code 735 may include instructions executable by the at least one processor 740 to cause the device 705 to perform various aspects of UE-initiated beam reporting for beam management as described herein, or the at least one processor 740 and the at least one memory 730 may be otherwise configured to, individually or collectively, perform or support such operations.
[0143] FIG. 8 shows a flowchart illustrating a method 800 that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure. The operations of the method 800 may be implemented by a UE or its components as described herein. For example, the operations of the method 800 may be performed by a UE 115 as described with reference to FIGs. 1 through 7. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.
[0144] At 805, the method may include receiving a control message indicating a configuration of a set of events that trigger a transmission of a beam report, where the beam report is based on measurements of a set of beams associated with a serving cell or a non-serving cell, or both. The operations of 805 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 805 may be performed by a beam report configuration manager 625 as described with reference to FIG. 6.
[0145] At 810, the method may include identifying, for an event of the set of events, one or more beams from the set of beams, where the one or more beams are identified based on one or more indicated unified TCI states, one or more activated unified TCI states, or any combination thereof. The operations of 810 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 810 may be performed by a beam identifying manager 630 as described with reference to FIG. 6.
[0146] At 815, the method may include transmitting the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied. The operations of 815 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 815 may be performed by a beam report transmission manager 635 as described with reference to FIG. 6.
[0147] FIG. 9 shows a flowchart illustrating a method 900 that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure. The operations of the method 900 may be implemented by a UE or its components as described herein. For example, the operations of the method 900 may be performed by a UE 115 as described with reference to FIGs. 1 through 7. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.
[0148] At 905, the method may include receiving a control message indicating a configuration of a set of events that trigger a transmission of a beam report, where the beam report is based on measurements of a set of beams associated with a serving cell or a non-serving cell, or both. The operations of 905 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 905 may be performed by a beam report configuration manager 625 as described with reference to FIG. 6.
[0149] At 910, the method may include identifying, for an event of the set of events, one or more beams from the set of beams, where the one or more beams are identified based on one or more indicated unified TCI states for a first set of channels, one or more activated unified TCI states, one or more other unified TCI states that are indicated for a second set of channels different from the first set of channels, or any combination thereof. The operations of 910 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 910 may be performed by a beam identifying manager 630 as described with reference to FIG. 6.
[0150] At 915, the method may include transmitting the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied. In some examples, the beam report may be transmitted based on the trigger being satisfied for each TCI of the set of multiple TCI states. The operations of 915 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 915 may be performed by a beam report transmission manager 635 as described with reference to FIG. 6.
[0151] FIG. 10 shows a flowchart illustrating a method 1000 that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure. The operations of the method 1000 may be implemented by a UE or its components as described herein. For example, the operations of the method 1000 may be performed by a UE 115 as described with reference to FIGs. 1 through 7. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.
[0152] At 1005, the method may include receiving a control message indicating a configuration of a set of events that trigger a transmission of a beam report, where the beam report is based on measurements of a set of beams associated with a serving cell or a non-serving cell, or both. The operations of 1005 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1005 may be performed by a beam report configuration manager 625 as described with reference to FIG. 6.
[0153] At 1010, the method may include identifying, for an event of the set of events, one or more beams from the set of beams, where the one or more beams are identified based on one or more indicated unified TCI states for a first set of channels, one or more activated unified TCI states, one or more other unified TCI states that are indicated for a second set of channels different from the first set of channels, or any combination thereof. The operations of 1010 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1010 may be performed by a beam identifying manager 630 as described with reference to FIG. 6.
[0154] At 1015, the method may include transmitting the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied. In some examples, the beam report may be transmitted based on the trigger being satisfied for at least one TCI state of the set of multiple TCI states. The operations of 1015 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1015 may be performed by a beam report transmission manager 635 as described with reference to FIG. 6.
[0155] FIG. 11 shows a flowchart illustrating a method 1100 that supports UE-initiated beam reporting for beam management in accordance with one or more aspects of the present disclosure. The operations of the method 1100 may be implemented by a UE or its components as described herein. For example, the operations of the method 1100 may be performed by a UE 115 as described with reference to FIGs. 1 through 7. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.
[0156] At 1105, the method may include receiving a control message indicating a configuration of a set of events that trigger a transmission of a beam report, where the beam report is based on measurements of a set of beams associated with a serving cell or a non-serving cell, or both. The operations of 1105 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1105 may be performed by a beam report configuration manager 625 as described with reference to FIG. 6.
[0157] At 1110, the method may include identifying, for an event of the set of events, one or more beams from the set of beams, where the one or more beams are identified based on one or more indicated unified TCI states for a first set of channels, one or more activated unified TCI states, one or more other unified TCI states that are indicated for a second set of channels different from the first set of channels, or any combination thereof. The operations of 1110 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1110 may be performed by a beam identifying manager 630 as described with reference to FIG. 6.
[0158] At 1115, the method may include transmitting the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied. In some examples, the beam report may be transmitted based on the trigger being satisfied for a quantity of TCI states of the set of multiple TCI states. The operations of 1115 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1115 may be performed by a beam report transmission manager 635 as described with reference to FIG. 6.
[0159] The following provides an overview of aspects of the present disclosure:
[0160] Aspect 1: A method for wireless communications at a UE, comprising: receiving a control message indicating a configuration of a set of events that trigger a transmission of a beam report, wherein the beam report is based at least in part on measurements of a set of beams associated with a serving cell or a non-serving cell, or both; identifying, for an event of the set of events, one or more beams from the set of beams, wherein the one or more beams are identified based at least in part on one or more indicated unified TCI states for a first set of channels, one or more activated unified TCI states, one or more other unified TCI states that are indicated for a second set of channels different from the first set of channels, or any combination thereof; and transmitting the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied.
[0161] Aspect 2: The method of aspect 1, wherein the event comprises conditions in which a first quality of a first subset of beams of the set of beams is below a first threshold, the first subset of beams is associated with a PCI of the serving cell, a PCI of an additional active cell, or both.
[0162] Aspect 3: The method of aspect 2, further comprising: determining whether one or more additional beams of the set of beams are associated with a second quality that satisfies the first threshold, wherein the beam report comprises an indication of whether the one or more additional beams are associated with the second quality that satisfies the first threshold.
[0163] Aspect 4: The method of any of aspects 2 through 3, wherein transmitting the beam report comprises: transmitting the beam report based at least in part on identifying one or more additional beams of the set of beams that are associated with a second quality that is higher than the first quality.
[0164] Aspect 5: The method of any of aspects 1 through 4, wherein the event comprises conditions in which a quality of a second subset of beams of the set of beams satisfies a second threshold, the second subset of beams is associated with a PCI of the non-serving cell.
[0165] Aspect 6: The method of aspect 1, wherein the event comprises conditions in which a quality of a second subset of beams of the set of beams is a threshold amount above a quality of a first subset of beams of the set of beams, the first subset of beams is associated with a PCI of the serving cell, a PCI of an additional active cell, or both, and the second subset of beams is associated with a PCI of the non-serving cell.
[0166] Aspect 7: The method of aspect 1, wherein the set of beams comprises a first subset of beams associated with a same PCI, and wherein transmitting the beam report comprises: transmitting the beam report in response to the trigger being satisfied for each beam of the first subset of beams.
[0167] Aspect 8: The method of aspect 1, wherein the set of beams comprises a first subset of beams associated with a same PCI, and wherein transmitting the beam report comprises: transmitting the beam report in response to the trigger being satisfied for at least one beam of the first subset of beams.
[0168] Aspect 9: The method of aspect 1, wherein the set of beams comprises a first subset of beams associated with a same PCI, and wherein transmitting the beam report comprises: transmitting the beam report in response to the trigger being satisfied for a configured quantity of beams of the first subset of beams.
[0169] Aspect 10: The method of aspect 1, wherein the set of beams comprises a first subset of beams associated with a same PCI, and wherein transmitting the beam report comprises: transmitting the beam report in response to an average quality of the first subset of beams satisfying the trigger.
[0170] Aspect 11: The method of aspect 1, wherein a plurality of TCI states are associated with the one or more beams, and wherein transmitting the beam report comprises: transmitting the beam report based at least in part on the trigger being satisfied for each TCI state of the plurality of TCI states.
[0171] Aspect 12: The method of aspect 1, wherein a plurality of TCI states are associated with the one or more beams, and wherein transmitting the beam report comprises: transmitting the beam report based at least in part on the trigger being satisfied for at least one TCI state of the plurality of TCI states.
[0172] Aspect 13: The method of aspect 1, wherein a plurality of TCI states are associated with the one or more beams, and wherein transmitting the beam report comprises: transmitting the beam report based at least in part on the trigger being satisfied for a quantity of TCI states of the plurality of TCI states.
[0173] Aspect 14: The method of aspect 1, wherein a plurality of TCI states are associated with the one or more beams, and wherein transmitting the beam report comprises: transmitting the beam report based at least in part on an average quality of the plurality of TCI states satisfying one or more conditions associated with the trigger.
[0174] Aspect 15: The method of any of aspects 1 through 14, wherein the one or more beams are associated with the one or more indicated unified TCI states for the first set of channels.
[0175] Aspect 16: The method of any of aspects 1 through 15, wherein the one or more beams are associated with the one or more activated unified TCI states.
[0176] Aspect 17: The method of any of aspects 1 through 16, wherein the one or more beams are associated with the one or more indicated unified TCI states for the first set of channels and further associated with the one or more other unified TCI states that are indicated for the second set of channels different from the first set of channels.
[0177] Aspect 18: A UE for wireless communications, comprising one or more memories storing processor-executable code, and one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the UE to perform a method of any of aspects 1 through 17.
[0178] Aspect 19: A UE for wireless communications, comprising at least one means for performing a method of any of aspects 1 through 17.
[0179] Aspect 20: A non-transitory computer-readable medium storing code for wireless communications, the code comprising instructions executable by one or more processors to perform a method of any of aspects 1 through 17.
[0180] It should be noted that the methods described herein describe possible implementations. The operations and the steps may be rearranged or otherwise modified and other implementations are possible. Further, aspects from two or more of the methods may be combined.
[0181] Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to various other wireless communications systems such as Ultra Mobile Broadband (UMB) , Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, Flash-OFDM, as well as other systems and radio technologies not explicitly mentioned herein.
[0182] 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.
[0183] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed using a general-purpose processor, a DSP, an ASIC, a CPU, a graphics processing unit (GPU) , a neural processing unit (NPU) , 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) . Any functions or operations described herein as being capable of being performed by a processor may be performed by multiple processors that, individually or collectively, are capable of performing the described functions or operations.
[0184] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions may be stored as or transmitted using one or more instructions or code of 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.
[0185] 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 location 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, and not limitation, 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. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) , or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. Disk and disc, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD) , floppy disk, and Blu-ray disc. Disks may reproduce data magnetically, and discs may reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media. Any functions or operations described herein as being capable of being performed by a memory may be performed by multiple memories that, individually or collectively, are capable of performing the described functions or operations.
[0186] 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” ) 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. ”
[0187] As used herein, including in the claims, the article “a” before a noun is open-ended and understood to refer to “at least one” of those nouns or “one or more” of those nouns. Thus, the terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable. For example, if a claim recites “a component” that performs one or more functions, each of the individual functions may be performed by a single component or by any combination of multiple components. Thus, the term “a component” having characteristics or performing functions may refer to “at least one of one or more components” having a particular characteristic or performing a particular function. Subsequent reference to a component introduced with the article “a” using the terms “the” or “said” may refer to any or all of the one or more components. For example, a component introduced with the article “a” may be understood to mean “one or more components, ” and referring to “the component” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components. ” Similarly, subsequent reference to a component introduced as “one or more components” using the terms “the” or “said” may refer to any or all of the one or more components. For example, referring to “the one or more components” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components. ”
[0188] The term “determine” or “determining” encompasses a variety of actions and, therefore, “determining” can include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, a database, or another data structure) , ascertaining, and the like. Also, “determining” can include receiving (e.g., receiving information) , accessing (e.g., accessing data stored in memory) , and the like. Also, “determining” can include resolving, obtaining, selecting, choosing, establishing, and other such similar actions.
[0189] In the appended figures, similar components or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If just the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label or other subsequent reference label.
[0190] The description set forth herein, in connection with the appended drawings, describes example configurations and does not represent all the examples that may be implemented or that are within the scope of the claims. The term “example” used herein means “serving as an example, instance, or illustration” and not “preferred” or “advantageous over other examples. ” The detailed description includes specific details for the purpose of providing an understanding of the described techniques. These techniques, however, may be practiced without these specific details. In some figures, known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.
[0191] 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:one or more memories storing processor-executable code; andone or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the UE to:receive a control message indicating a configuration of a set of events that trigger a transmission of a beam report, wherein the beam report is based at least in part on measurements of a set of beams associated with a serving cell or a non-serving cell, or both;identify, for an event of the set of events, one or more beams from the set of beams, wherein the one or more beams are identified based at least in part on one or more indicated unified transmission configuration indicator states, one or more activated unified transmission configuration indicator states, or any combination thereof; andtransmit the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied.2.The UE of claim 1, wherein the event comprises conditions in which a first quality of a first subset of beams of the set of beams is below a first threshold, wherein the first subset of beams is associated with a physical cell identifier of the serving cell, a physical cell identifier of an additional active cell, or both.3.The UE of claim 2, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:determine whether one or more additional beams of the set of beams are associated with a second quality that satisfies the first threshold, wherein the beam report comprises an indication of whether the one or more additional beams are associated with the second quality that satisfies the first threshold.4.The UE of claim 2, wherein, to transmit the beam report, the one or more processors are individually or collectively operable to execute the code to cause the UE to:transmit the beam report based at least in part on identifying one or more additional beams of the set of beams that are associated with a second quality that is higher than the first quality.5.The UE of claim 1, wherein the event comprises conditions in which a quality of a second subset of beams of the set of beams satisfies a second threshold, wherein the second subset of beams is associated with a physical cell identifier of the non-serving cell.6.The UE of claim 1, wherein the event comprises conditions in which a quality of a second subset of beams of the set of beams is a threshold amount above a quality of a first subset of beams of the set of beams, wherein the first subset of beams is associated with a physical cell identifier of the serving cell, a physical cell identifier of an additional active cell, or both, and wherein the second subset of beams is associated with a physical cell identifier of the non-serving cell.7.The UE of claim 1, wherein the set of beams comprises a first subset of beams associated with a same physical cell identifier, and wherein, to transmit the beam report, the one or more processors are individually or collectively operable to execute the code to cause the UE to:transmit the beam report in response to the trigger being satisfied for each beam of the first subset of beams.8.The UE of claim 1, wherein the set of beams comprises a first subset of beams associated with a same physical cell identifier, and wherein, to transmit the beam report, the one or more processors are individually or collectively operable to execute the code to cause the UE to:transmit the beam report in response to the trigger being satisfied for at least one beam of the first subset of beams.9.The UE of claim 1, wherein the set of beams comprises a first subset of beams associated with a same physical cell identifier, and wherein, to transmit the beam report, the one or more processors are individually or collectively operable to execute the code to cause the UE to:transmit the beam report in response to the trigger being satisfied for a configured quantity of beams of the first subset of beams.10.The UE of claim 1, wherein the set of beams comprises a first subset of beams associated with a same physical cell identifier, and wherein, to transmit the beam report, the one or more processors are individually or collectively operable to execute the code to cause the UE to:transmit the beam report in response to an average quality of the first subset of beams satisfying the trigger.11.The UE of claim 1, wherein a plurality of transmission configuration indicator states are associated with the one or more beams, and wherein, to transmit the beam report, the one or more processors are individually or collectively operable to execute the code to cause the UE to:transmit the beam report based at least in part on the trigger being satisfied for each transmission configuration indicator state of the plurality of transmission configuration indicator states.12.The UE of claim 1, wherein a plurality of transmission configuration indicator states are associated with the one or more beams, and wherein, to transmit the beam report, the one or more processors are individually or collectively operable to execute the code to cause the UE to:transmit the beam report based at least in part on the trigger being satisfied for at least one transmission configuration indicator state of the plurality of transmission configuration indicator states.13.The UE of claim 1, wherein a plurality of transmission configuration indicator states are associated with the one or more beams, and wherein, to transmit the beam report, the one or more processors are individually or collectively operable to execute the code to cause the UE to:transmit the beam report based at least in part on the trigger being satisfied for a quantity of transmission configuration indicator states of the plurality of transmission configuration indicator states.14.The UE of claim 1, wherein a plurality of transmission configuration indicator states are associated with the one or more beams, and wherein, to transmit the beam report, the one or more processors are individually or collectively operable to execute the code to cause the UE to:transmit the beam report based at least in part on an average quality of the plurality of transmission configuration indicator states satisfying one or more conditions associated with the trigger.15.The UE of claim 1, wherein the one or more beams are associated with the one or more indicated unified transmission configuration indicator states.16.The UE of claim 1, wherein the one or more beams are associated with the one or more activated unified transmission configuration indicator states.17.The UE of claim 1, wherein the one or more beams are associated with the one or more indicated unified transmission configuration indicator states for a first set of channels and further associated with one or more other unified transmission configuration indicator states that are indicated for a second set of channels different from the first set of channels.18.A method for wireless communications at a user equipment (UE) , comprising:receiving a control message indicating a configuration of a set of events that trigger a transmission of a beam report, wherein the beam report is based at least in part on measurements of a set of beams associated with a serving cell or a non-serving cell, or both;identifying, for an event of the set of events, one or more beams from the set of beams, wherein the one or more beams are identified based at least in part on one or more indicated unified transmission configuration indicator states, one or more activated unified transmission configuration indicator states, or any combination thereof; andtransmitting the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied.19.The method of claim 18, wherein the event comprises conditions in which a first quality of a first subset of beams of the set of beams is below a first threshold, the first subset of beams is associated with a physical cell identifier of the serving cell, a physical cell identifier of an additional active cell, or both.20.A non-transitory computer-readable medium storing code for wireless communications, the code comprising instructions executable by one or more processors to:receive a control message indicating a configuration of a set of events that trigger a transmission of a beam report, wherein the beam report is based at least in part on measurements of a set of beams associated with a serving cell or a non-serving cell, or both;identify, for an event of the set of events, one or more beams from the set of beams, wherein the one or more beams are identified based at least in part on one or more indicated unified transmission configuration indicator states, one or more activated unified transmission configuration indicator states, or any combination thereof; andtransmit the beam report for the identified one or more beams in response to a trigger corresponding to the event being satisfied.
Citation Information
Patent Citations
Reporting method, device and terminal
CN116074887A
Methods and apparatuses for beam management reporting
US20230164607A1
Beam reporting for inter-cell beam management
WO2023050139A1