Techniques for lower-layer triggered mobility measurement reporting

Abstract

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive configuration information that indicates a measurement configuration for layer 1 (L1) / layer 2 (L2) triggered mobility (LTM). The measurement configuration may indicate a plurality of channel state information reference signal (CSI-RS) resources for LTM, and the plurality of CSI-RS resources may correspond to a plurality of candidate cells associated with LTM for the UE. The UE may receive, from at least one of the plurality of candidate cells, a neighbor cell CSI-RS on one of the plurality of CSI-RS resources in accordance with the measurement configuration. The UE may determine whether to transmit a measurement report associated with the neighbor cell CSI-RS. The determination may be based on a comparison of a received timing difference (RTD) of the neighbor cell CSI-RS with a threshold.

Description

Qualcomm Ref. No. 2502909WO1TECHNIQUES FOR LOWER-LAYER TRIGGERED MOBILITY MEASUREMENT REPORTINGCROSS REFERENCES

[0001] The present Application for Patent claims priority to U.S. Patent Application No. 19 / 468,793 by RYU et al., entitled “TECHNIQUES FOR LOWER-LAYER TRIGGERED MOBILITY MEASUREMENT REPORTING” filed February 3, 2026, which claims the benefit of U.S. Provisional Patent Application No. 63 / 772,223 by RYU et al., entitled “TECHNIQUES FOR LOWER-LAYER TRIGGERED MOBILITY MEASUREMENT REPORTING,” filed March 14, 2025, each of which is assigned to the assignee hereof, and each of which is expressly incorporated by reference herein.FIELD OF TECHNOLOGY

[0002] The following relates to wireless communications, including techniques for lower-layer triggered mobility measurement reporting.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).Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO2SUMMARY

[0004] The systems, methods, and devices of this disclosure each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein.

[0005] A method for wireless communication by a user equipment (UE) is described. The method may include receiving configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a set of multiple channel state information reference signal (CSI-RS) resources for LTM, where the set of multiple CSLRS resources corresponds to a set of multiple candidate cells associated with LTM for the UE, receiving, from at least one of the set of multiple candidate cells, a neighbor cell CSLRS on one of the set of multiple CSLRS resources in accordance with the measurement configuration, and determining whether to transmit a measurement report associated with the neighbor cell CSLRS, where the determination is based on a comparison of a received timing difference (RTD) of the neighbor cell CSI-RS with a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0006] A UE for wireless communication 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 configuration information that indicates a measurement configuration for LTM, the measurement configuration indicating a set of multiple CSI-RS resources for LTM, where the set of multiple CSI-RS resources corresponds to a set of multiple candidate cells associated with LTM for the UE, receive, from at least one of the set of multiple candidate cells, a neighbor cell CSI-RS on one of the set of multiple CSI-RS resources in accordance with the measurement configuration, and determine whether to transmit a measurement report associated with the neighbor cell CSI-RS, where the determination is based on a comparison of a RTD of the neighbor cell CSI-RS with a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO3

[0007] Another UE for wireless communication is described. The UE may include means for receiving configuration information that indicates a measurement configuration for LTM, the measurement configuration indicating a set of multiple C SIRS resources for LTM, where the set of multiple CSLRS resources corresponds to a set of multiple candidate cells associated with LTM for the UE, means for receiving, from at least one of the set of multiple candidate cells, a neighbor cell CSLRS on one of the set of multiple CSLRS resources in accordance with the measurement configuration, and means for determining whether to transmit a measurement report associated with the neighbor cell CSLRS, where the determination is based on a comparison of a RTD of the neighbor cell CSLRS with a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0008] A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by one or more processors to receive configuration information that indicates a measurement configuration for LTM, the measurement configuration indicating a set of multiple C SIRS resources for LTM, where the set of multiple CSLRS resources corresponds to a set of multiple candidate cells associated with LTM for the UE, receive, from at least one of the set of multiple candidate cells, a neighbor cell CSLRS on one of the set of multiple CSLRS resources in accordance with the measurement configuration, and determine whether to transmit a measurement report associated with the neighbor cell CSLRS, where the determination is based on a comparison of a RTD of the neighbor cell CSLRS with a threshold, where the RTD of the neighbor cell CSLRS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0009] Some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for abstaining from transmitting the measurement report based on the RTD of the neighbor cell CSLRS being greater than the threshold.

[0010] Some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein may further include operations, features,Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO4means, or instructions for transmitting the measurement report based on the RTD of the neighbor cell CSI-RS being less than the threshold.

[0011] In some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein, transmitting the measurement report may include operations, features, means, or instructions for transmitting the measurement report based on a measurement accuracy requirement, where the measurement accuracy requirement may be based on the RTD of the neighbor cell CSI-RS.

[0012] Some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein, the configuration information may indicate the measurement accuracy requirement.

[0013] In some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein, the measurement accuracy requirement includes a first measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS may be less than the cyclic prefix of the OFDM signal, and a second measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS may be greater than the cyclic prefix of the OFDM signal and less than the threshold.

[0014] In some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein, the measurement accuracy requirement may be based on the threshold.

[0015] Some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein, the configuration information may indicate the threshold.

[0016] Some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting an indication of the RTD of the neighbor cell CSI-RS.

[0017] Some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting UE assistance information indicating the RTD of the neighbor cell CSI-RS.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO5

[0018] In some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein, and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for a first value indicating that the RTD may be less than a cyclic prefix, a second value indicating that the RTD may be greater than the cyclic prefix, a third value indicating that the RTD may be greater than N times the cyclic prefix and less than N+l times the cyclic prefix, where N may be an integer, a fourth value indicating that the RTD may be greater than the cyclic prefix and less than the threshold, and a fifth value indicating that the RTD may be within k-th interval between cyclic prefix and the threshold, where k may be an integer.

[0019] In some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein, the measurement report indicates the RTD of the neighbor cell CSI-RS.

[0020] In some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein, receiving the neighbor cell CSI-RS may include operations, features, means, or instructions for receiving, from the one of the set of multiple candidate cells, more than one neighbor cell CSI-RSs.

[0021] Some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting an indication of a largest RTD associated with the more than one neighbor cell CSI-RSs from the one of the set of multiple candidate cells.

[0022] Some examples of the method, user equipment (UEs), and non-transitory computer-readable medium described herein, the configuration information may indicate an RTD reporting configuration.

[0023] A method for wireless communication by a network entity is described. The method may include outputting, for a UE, configuration information that indicates a measurement configuration for LTM, the measurement configuration indicating a set of multiple CSI-RS resources for LTM, where the set of multiple CSI-RS resources corresponds to a set of multiple candidate cells associated with LTM for the UE and obtaining a measurement report associated with a neighbor cell CSI-RS of one of the setAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO6of multiple candidate cells on one of the set of multiple CSI-RS resources in accordance with the measurement configuration, where a RTD of the neighbor cell CSI-RS being less is a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0024] A network entity for wireless communication is described. The network entity 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 network entity to output, for a UE, configuration information that indicates a measurement configuration for LTM, the measurement configuration indicating a set of multiple CSI-RS resources for LTM, where the set of multiple CSI-RS resources corresponds to a set of multiple candidate cells associated with LTM for the UE and obtain a measurement report associated with a neighbor cell CSI-RS from one of the set of multiple candidate cells on one of the set of multiple CSI-RS resources in accordance with the measurement configuration, where a RTD of the neighbor cell CSI-RS is less than a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0025] Another network entity for wireless communication is described. The network entity may include means for outputting, for a UE, configuration information that indicates a measurement configuration for LTM, the measurement configuration indicating a set of multiple CSI-RS resources for LTM, where the set of multiple CSI-RS resources corresponds to a set of multiple candidate cells associated with LTM for the UE and means for obtaining a measurement report associated with a neighbor cell CSI-RS from one of the set of multiple candidate cells on one of the set of multiple CSI-RS resources in accordance with the measurement configuration, where a RTD of the neighbor cell CSI-RS is less than a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0026] A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by one or Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO7more processors to output, for a UE, configuration information that indicates a measurement configuration for LTM, the measurement configuration indicating a set of multiple CSI-RS resources for LTM, where the set of multiple CSLRS resources corresponds to a set of multiple candidate cells associated with LTM for the UE and obtain a measurement report associated with a neighbor cell CSLRS from one of the set of multiple candidate cells on one of the set of multiple CSI-RS resources in accordance with the measurement configuration, where a RTD of the neighbor cell CSI-RS is less than a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0027] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, obtaining the measurement report may include operations, features, means, or instructions for obtaining the measurement report based on a measurement accuracy requirement, where the measurement accuracy requirement may be based on the RTD of the neighbor cell CSI-RS.

[0028] Some examples of the method, network entities, and non-transitory computer-readable medium described herein, the configuration information may indicate the measurement accuracy requirement.

[0029] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the measurement accuracy requirement may conform to a first measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS may be less than the cyclic prefix of the OFDM signal, and a second measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS may be greater than the cyclic prefix of the OFDM signal and less than the threshold.

[0030] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the measurement accuracy requirement may be based on the threshold.

[0031] Some examples of the method, network entities, and non-transitory computer-readable medium described herein, the configuration information may indicate the threshold.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO8

[0032] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for obtaining an indication of the RTD of the neighbor cell CSI-RS.

[0033] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for obtaining UE assistance information indicating the RTD of the neighbor cell CSI-RS.

[0034] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for a first value indicating that the RTD may be less than a cyclic prefix, a second value indicating that the RTD may be greater than the cyclic prefix, a third value indicating that the RTD may be greater than N times the cyclic prefix and less than N+l times the cyclic prefix, where N may be an integer, a fourth value indicating that the RTD may be greater than the cyclic prefix and less than the threshold, and a fifth value indicating that the RTD may be within k-th interval between cyclic prefix and the threshold, where k may be an integer.

[0035] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the measurement report indicates the RTD of the neighbor cell CSI-RS.

[0036] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for obtaining an indication of a largest RTD associated with more than one neighbor cell CSI-RSs from the one of the set of multiple candidate cells.

[0037] Some examples of the method, network entities, and non-transitory computer-readable medium described herein, the configuration information may indicate an RTD reporting configuration.

[0038] Details of one or more implementations of the subject matter described in this disclosure are set forth in the accompanying drawings and the description below.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO9Other features, aspects, and advantages will become apparent from the description, the drawings, and the claims. Note that the relative dimensions of the following figures may not be drawn to scale.BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG. 1 shows an example of a wireless communications system that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure.

[0040] FIG. 2 shows an example of a wireless communications system that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure.

[0041] FIG. 3 shows an example of a process flow that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure.

[0042] FIGs. 4 and 5 show block diagrams of devices that support techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure.

[0043] FIG. 6 shows a block diagram of a communications manager that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure.

[0044] FIG. 7 shows a diagram of a system including a device that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure.

[0045] FIGs. 8 and 9 show block diagrams of devices that support techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure.

[0046] FIG. 10 shows a block diagram of a communications manager that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO10

[0047] FIG. 11 shows a diagram of a system including a device that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure.

[0048] FIGs. 12 through 14 show flowcharts illustrating methods that support techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure.DETAILED DESCRIPTION

[0049] Some wireless communications systems may support layer 1 (LI) / layer 2 (L2) triggered mobility (LTM) of a user equipment (UE) for handover from a first cell to a second cell. For LTM, mobility of the UE may be triggered by lower-layer signaling, such as LI signaling or L2 signaling, as opposed to higher layer signaling, such as layer three (L3) signaling. To perform a mobility procedure, the UE may be configured to perform and report measurements to determine a communication quality of a candidate cell for potential mobility. In some cases, LTM may support measurements for one or more candidate cells for mobility. Resources and settings for performance and reporting of measurements may be configured by a network entity or a serving cell. For example, the UE may be configured with channel state information reference signal (CSI-RS) resources for measurement for LTM. In some cases, the UE may receive a neighbor cell CSLRS with a large received timing difference (RTD) due to cell synchronization error or propagation delay difference, where the RTD of the neighbor cell CSLRS is with respect to a reception timing of the serving cell. For example, the RTD may be greater than the cyclic prefix of an orthogonal frequency division multiplexing (OFDM) signal which may lead to inaccurate measurements for the candidate cell. Current mechanisms for LTM measurements reporting do not specify the measurement reporting when the RTD of the neighbor cell CSLRS is greater than the cyclic prefix.

[0050] Techniques for LTM measurement reporting may be employed. In some examples, the UE may report CSI measurements for a candidate cell when the RTD of the neighbor cell CSLRS is greater than the cyclic prefix and less than a threshold. In some examples, the UE may report the RTD associated with the neighbor cell CSLRS. For example, the UE may receive configuration information that indicates aAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO11measurement configuration for LTM. The measurement configuration may indicate a plurality of CSI-RS resources for LTM, and the plurality of CSLRS resources may correspond to a plurality of candidate cells associated with LTM for the UE. The UE may receive, from at least one of the candidate cells, a neighbor cell CSLRS on one of the plurality of CSI-RS resources of the measurement configuration. The UE may determine whether to transmit a measurement report associated with the neighbor cell CSI-RS, and the determination may be based on a comparison of a RTD of the neighbor cell CSI-RS with a threshold. The RTD of the neighbor cell CSI-RS may be with respect to a reception timing of a serving cell, and the threshold may be greater than a cyclic prefix of an OFDM signal. The UE may abstain from transmitting the measurement report based on the RTD of the neighbor cell CSI-RS being greater than the threshold, and the UE may transmit the measurement report based on the RTD of the neighbor cell CSI-RS being less than the threshold. In some cases, the UE may transmit an indication of the RTD of the neighbor cell CSI-RS.

[0051] 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 a process flow, apparatus diagrams, system diagrams, and flowcharts that relate to techniques for lower-layer triggered mobility measurement reporting.

[0052] FIG. 1 shows an example of a wireless communications system 100 that supports techniques for lower-layer triggered mobility measurement reporting 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.

[0053] 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 Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO12referred 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).

[0054] 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.

[0055] 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 receiveAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO13information from a network entity 105 also discloses that a first node is configured to receive information from a second node.

[0056] 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 SI, 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.

[0057] 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 5GNB, 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).

[0058] 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 Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO14entities 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)).

[0059] 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 (LI) (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 layersAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO15of 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., Fl, Fl-c, Fl-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.

[0060] 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) 104Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO16may 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.

[0061] 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 techniques for lower-layer triggered mobility measurement reporting 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).

[0062] 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 (loT) device, an Internet of Everything (loE) 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.

[0063] 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.

[0064] 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) usingAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO17resources 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).

[0065] Signal waveforms transmitted via a carrier may be made up of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as 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,Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO18a beam), and the use of multiple spatial resources may increase the data rate or data integrity for communications with a UE 115.

[0066] One or more numerologies for a carrier may be supported, and a numerology may include a subcarrier spacing (A ) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time and communications for the UE 115 may be restricted to one or more active BWPs.

[0067] 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= l / (A / max■ Ay) seconds, for which fmaxmay represent a supported subcarrier spacing, and Ay 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).

[0068] 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., Ay) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.

[0069] 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, orAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO19alternatively, the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

[0070] 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).

[0071] 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.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO20

[0072] 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.

[0073] 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.

[0074] 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 mobilityAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO21management 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.

[0075] 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.

[0076] 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 unlicensedAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO1spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.

[0077] 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.

[0078] 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).Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO23

[0079] The wireless communications system 100 may support LTM of a UE 115 for handover from a first cell to a second cell. For LTM, mobility of the UE 115 may be triggered by lower-layer signaling, such as LI signaling or L2 signaling, as opposed to higher layer signaling of L3 signaling. To perform a mobility procedure, a UE 115 may be configured to perform and report measurements to determine a communication quality of a candidate cell for potential mobility. In some cases, LTM may support measurements for one or more candidate cells for mobility. Resources and settings for performance and reporting of measurements may be configured by a network entity 105 or the serving cell. For example, the UE 115 may be configured with CSLRS resources for measurement for LTM. In some cases, the UE 115 may receive a neighbor cell CSI-RS with a large RTD due to cell synchronization error or propagation delay difference, where the RTD of the neighbor cell CSLRS is with respect to a reception timing of the serving cell. For example, the RTD may be greater than the cyclic prefix of an OFDM signal which may lead to inaccurate measurements for the candidate cell. Current mechanisms for LTM measurements reporting do not specify the measurement reporting when the RTD of the neighbor cell CSI-RS is greater than the cyclic prefix.

[0080] Techniques for LTM measurement reporting may be employed. In some examples, the UE 115 may report CSI measurements for a candidate cell when the RTD of the neighbor cell CSLRS is greater than the cyclic prefix and less than a threshold. In some examples, the UE 115 may report the RTD associated with the neighbor cell CSI-RS. For example, the UE 115 may receive configuration information that indicates a measurement configuration for LTM. The measurement configuration may indicate a plurality of CSI-RS resources for LTM, and the plurality of CSI-RS resources may correspond to a plurality of candidate cells associated with LTM for the UE 115. The UE 115 may receive, from at least one of the candidate cells, a neighbor cell CSI-RS on one of the plurality of CSI-RS resources of the measurement configuration. The UE 115 may determine whether to transmit a measurement report associated with the neighbor cell CSLRS, and the determination may be based on a comparison of a RTD of the neighbor cell CSI-RS with a threshold. The RTD of the neighbor cell CSI-RS may be with respect to a reception timing of a serving cell, and the threshold may be greater than a cyclic prefix of an OFDM signal. The UE 115 may abstain from transmitting the measurement report based on the RTD of the neighbor cell CSI-RS being greater thanAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO24the threshold, and the UE 115 may transmit the measurement report based on the RTD of the neighbor cell CSI-RS being less than the threshold. In some cases, the UE 115 may transmit an indication of the RTD of the neighbor cell CSI-RS.

[0081] FIG. 2 shows an example of a wireless communication system 200 that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure. In some cases, the wireless communications system 200 may implement or be implemented by aspects of the wireless communications system 100. For example, the wireless communications system 200 may include one or more UEs 115 (e.g., a UE 115-a) and one or more network entities 105 (e.g., a network entity 105-a, a network entity 105-b, and a network entity 105-c), which may be examples of the corresponding devices as described herein. Each network entity of the one or more network entities may be associated with a respective cell. For example, the network entity 105-a may be associated with a cell 205-a, which may be an example of a serving cell. Similarly, the network entity 105-b may be associated with a cell 205-b and the network entity 105-c may be associated with a cell 205-c. The cell 205-b and the cell 205-c may be examples of candidate cells. The UE 115-a may be in communication with one or more cells (e.g., serving cell 205-a, cell 205-b, or cell 205-c) via the one or more network entities (e.g., network entity 105-a, network entity 105-b, or network entity 105-c).

[0082] In some implementations, the UE 115-a may communicate with the network entity 105-a using a communication link 125-a, the UE 115-a may communicate with the network entity 105-b using a communication link 125-b, and the UE 115-a may communicate with the network entity 105-c using a communication link 125-c. The communication link 125-a, the communication link 125-b, and the communication link 125-c may be examples of a 6th generation (6G), a NR or LTE link between the UE 115-a and the network entity 105-a, the network entity 105-b, and the network entity 105-c. The communication link 125-a, the communication link 125-b, and the communication link 125-c may include bi-directional links that enable both uplink and downlink communications. For example, the network entity 105-a may transmit downlink signals (e.g., downlink message), such as downlink control signaling and downlink data signals, to the UE 115-a using the communication link 125-a, and the UE 115-a may transmit uplink signals (e.g., uplink messages), including uplink controlAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO25signaling and uplink data signals to the network entity 105- a using the communication link 125-a. The network entity 105-b may transmit downlink signals (e.g., downlink message), such as downlink control signaling and downlink data signals, to the UE 115-a using the communication link 125-b, and the UE 115-a may transmit uplink signals (e.g., uplink messages), including uplink control signaling and uplink data signals to the network entity 105-b using the communication link 125-b; the network entity 105-c may transmit downlink signals (e.g., downlink message), such as downlink control signaling and downlink data signals, to the UE 115-a using the communication link 125-c, and the UE 115-a may transmit uplink signals (e.g., uplink messages), including uplink control signaling and uplink data signals to the network entity 105-c using the communication link 125-c.

[0083] The wireless communications system 200 may support LTM of the UE 115-a for handover from a serving cell (e.g., serving cell 205-a) to a candidate cell. For LTM, mobility of the UE 115-a to one of the candidate cells (e.g., candidate cell 205-b or candidate cell 205-c) may be triggered by LI signaling or L2 signaling. To perform the LTM mobility procedure, the UE 115-a may be configured to perform and report measurements to determine a communication quality of a candidate cell for potential mobility. In some cases, LTM may support measurements for one or more candidate cells for mobility. For example, the UE 115-a may perform event triggered LI measurement reporting on candidate cells (e.g., candidate cell 205-b or candidate cell 205-c) before handover and may perform CSLRS measurements for beam management on candidate cells (e.g., candidate cell 205-b or candidate cell 205-c) before LTM. Based on the reported measurements, the serving cell (e.g., network entity 105-a) may transmit, to the UE 115-a, L1 / L2 signaling instructing the UE 115-a to move to one of the candidate cells ((e.g., candidate cell 205-b or candidate cell 205-c) based on the reported LI measurements (both intra-frequency and inter-frequency).

[0084] In some examples, the UE 115-a may receive, from the network entity 105-a (e.g., the serving cell 205-a) via the communication link 125-a, configuration information 210 indicating a measurement configuration for LTM reporting. In some cases, the measurement configuration may indicate a plurality of measurement resources (e.g., CSLRS resources) for LTM. In some examples, the plurality ofAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO26measurement resources may correspond to the plurality of candidate cells (e.g., candidate cell 205-b and candidate cell 205-c) associated with LTM for the UE 115-a.

[0085] In some cases, the configuration information 210 may include an LTM-CSI-ReportConfig information element in a csi-MeasConfig information element of RRC signaling. For the UE 115-a configured with LTM-CSI-ReportConfig, aperiodic, semi-persistent or periodic CSI-RS are associated with one resource setting given by ResourcesForChannelMeasurement for Ll-RSRP measurement. The CSI report setting may be indicated by the LTM-CSI-ReportConfig that may be associated with an LTM-CSI-ResourceConfig information element for channel measurement and may contain Itm-ReportConfigType and Itm-ReportContent. The time domain behavior of the resource setting by LTM-CSI-ReportConfig may be indicated by Itm-ReportConfigType and may be set to ‘aperiodic’, ‘semiPersistentOnPUCCFF, ‘semiPersistentOnPUSCFF, or ‘periodic’. The report content of LTM-CSI-ReportConfig may be indicated by Itm-ReportContent, which contains nrOfReportedCells, nrOfReportedRS-PerCell and spCelllnclusion. Each LTM CSI resource setting (e.g., LTM-CSI-ResourceConfig) may contain configuration of a LTM-CSLSSB-ResourceSet which may include a list of Z > 1 SS / PBCH blocks indices given by Itm-CSI-SSB-ResourceList and a list of Z LTM-Candidatelds given by Itm-CandidatelDList referring to candidate cells associated with the SS / PBCH block indices.

[0086] In some examples, the configuration information 210 may indicate SSB-based or CSI-RS-based LI reference signal received power (Ll-RSRP) reporting for LTM. In some cases, the LTM Ll-RSRP reporting may be in an uplink control information (UCI) format. The UE 115-a may select L candidate cells and M candidate beams per cell for LTM Ll-RSRP reporting. If the UE 115-a is configured with spCelllnclusion, the UE 115-a may report noOfReportedRS-PerCell different SSBRI for the current serving cell and each of the noOfReportedCells -1 candidate cells; otherwise, the UE may report in a single reporting instance noOfReportedRS-PerCell different SSBRI for each of the noOfReportedCell candidate cells.

[0087] The UE 115-a may receive, from the candidate cell 205-b and the candidate cell 205-c, reference signals 215 (e.g., CSLRS) on the measurement resources. The UE 115-a may perform one or more measurements for LTM via the plurality of measurement resources in accordance with the measurement configuration. The UE Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO27115-a may transmit, to the serving cell 205-a, a measurement report 220 indicating the one or more measurements for LTM.

[0088] In some cases, the reference signals 215 from the candidate cell for LTM may be received with rather large RTD due to cell synchronization error or propagation delay difference. The RTD of the neighbor cell reference signal may be with respect to a reception timing of a serving cell (e.g., serving cell 205-a). In some cases, the reference signals 215 may be synchronization signature blocks (SSB). When the UE 115-a measures the SSB based on a receiving fast Fourier transform (RxFFT) of a physical downlink shared channel (PDSCH) reception, the UE 115-a may not adjust the neighbor cell SSB reception timing since RxFFT timing is fixed to a downlink timing of the serving cell, and the UE 115-a may measure multiple candidate cells simultaneously when SSBs from the multiple candidate cells overlap in time. When the UE 115-a measures SSBs based on a dedicated search or measurement engine, the UE 115-a may adjust the neighbor cell SSB reception timing per candidate cell, and the UE 115-a may not measure multiple candidate cells simultaneously when SSBs from the multiple candidate cells overlap in time. For the UE 115-a without the dedicated search or measurement engine, the UE 115-a may be incapable of measurement with RTD being greater than the cyclic prefix of the OFDM symbol, and the UE 115-a may not perform Ll-RSRP measurement on the same frequency layer when the RTD between the serving cell and neighbor cell is greater than the cyclic prefix of the OFDM symbol. For the UE 115-a with the dedicated search or measurement engine, the UE 115-a may be capable of measurement with the RTD being greater than the cyclic prefix.

[0089] In some cases, CSLRSs from the LTM candidate cells (e.g., the cell 205-b and the cell 205-c) may not be measured via the dedicated search or measurement engine since the CSI-RS bandwidth may not be limited to a small bandwidth. The UE 115-a may measure the CSLRSs from the LTM candidate cells using a PDSCH reception engine. Referring to FIG. 2, examples of the RTD of the neighbor cell CSLRS are shown. The neighboring cell CSLRS 225 has a RTD less than the cyclic prefix of the cyclic prefix of an OFDM signal. The neighboring cell CSLRS 230 has a RTD greater than the cyclic prefix of the cyclic prefix of an OFDM signal. The RTD of the neighbor cell CSLRS is with respect to a reception timing 235 of the serving cell 205-a. Current mechanisms for LTM reporting do not specify the measurement reportingAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO28behavior or a measurement accuracy requirement for CSI-RS based LTM measurement when the RTD of the neighbor cell CSI-RS is greater than the cyclic prefix of the OFDM signal. It would be beneficial to extend CSI-RS based measurement when the RTD of the neighbor cell CSI-RS is greater than the cyclic prefix.

[0090] In some examples, the UE 115-a may report measurements for the candidate cell or neighbor cell when the RTD of the neighbor cell CSI-RS is greater than the cyclic prefix and less than a threshold (Th-maxRTD). The UE 115-a may measure and report the neighbor cell CSI-RS with an associated RTD less than the Th-maxRTD. When the RTD of the neighbor cell CSI-RS is greater than the Th-maxRTD, the UE may not report or may abstain from reporting the measurement for the neighbor cell CSI-RS. When the RTD of the neighbor cell CSI-RS is less than the Th-maxRTD, the UE 115-a may transmit the measurement report 220 for the neighbor cell CSI-RS.

[0091] In some cases, a separate measurement accuracy requirement may be specified when the RTD of the neighbor cell is greater than the cyclic prefix and less than the Th-maxRTD. For example, the UE 115-a may transmit the measurement report based on the measurement accuracy requirement, and the measurement accuracy requirement may be based on the RTD of the neighbor cell CSI-RS. If the measurement accuracy of the neighbor cell CSI-RS measurement satisfies the measurement accuracy requirement, the UE 115-a may transmit the measurement report. If the measurement accuracy of the neighbor cell CSI-RS measurement does not satisfy the measurement accuracy requirement, the UE 115-a may abstain from transmitting the measurement report. In some cases, the measurement accuracy requirement may include a measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is less than the cyclic prefix of the OFDM signal, and another measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is greater than the cyclic prefix of the OFDM signal and less than the Th-maxRTD. The measurement accuracy requirement may be based on the Th-maxRTD.

[0092] In some cases, the UE 115-a may be configured to perform measurements and report the measurements when the RTD of the neighbor cell CSI-RS is greater than the cyclic prefix and less than a threshold (Th-maxRTD). For example, the network entity 105-a may transmit the configuration information 210 that indicates the UE 115-a to perform measurements and report the measurements when the RTD of the neighbor Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO29cell CSI-RS is greater than the cyclic prefix and less than the Th-maxRTD. In some examples, the configuration information 210 may be RRC signaling. The configuration information 210, may indicate the Th-maxRTD. In some cases, candidate values for the configurable Th-maxRTD may be defined. In some cases, the configuration information 210 may indicate the separate measurement accuracy requirement when the RTD of the neighbor cell CSI-RS is greater than the cyclic prefix and less than the Th-maxRTD. In some cases, the measurement accuracy requirement may be associated with each of the configurable Th-maxRTD values. In some examples, the configuration information 210 may be transmitted in one or more messages.

[0093] In some examples, the Th-maxRTD may not be defined, and the UE 115-a may measure and report neighbor cell CSI-RS when the RTD is greater than the cyclic prefix irrespective of the RTD. Additionally, the measurement accuracy requirement may not be specified when the RTD is greater than the cyclic prefix (CP).

[0094] In some cases, the UE 115-a may transmit, to the serving cell 205-a (e.g., network entity 105-a), an indication of the RTD 240 of the neighbor cell CSI-RS. The network entity 105-a may configure the UE 115-a to perform RTD reporting for CSI-RS based LI measurements. When neighbor cell CSI-RS measurement and reporting is configured, the UE 115-a may report measured RTD of the neighbor cell CSI-RS. In some cases, the RTD may be reported via user assistance information. In some cases, the RTD may be reported along with the L3 or LI measurement reporting for the CSI-RS. The RTD may be reported per CSI-RS resource or the RTD may be reported per neighbor cell. For example, the reported RTD may be determined based on a largest RTD among measured or reported CSLRSs associated with the neighbor cell.

[0095] In some cases, the RTD reporting may be defined or may be configured by the network entity 105-a by RRC signaling. For example, the configuration information 210 may indicate the RTD reporting configuration. In some cases, values may be assigned corresponding to the measured RTD. The RTD reporting configuration may be one of the following: 0: RTD<CP, 1: CP<RTD; 0: RTD<CP, 1: CP<RTD<2*CP, 2: 2*CP<RTD<3*CP, 3: 3*CP<RTD<4*CP; RTD<CP, 1: CP<RTD< Th-maxRTD; or 0: RTD<CP, 1: CP<RTD< CP+S / 3, 2: CP+ S / 3 <RTD< CP+2* S / 3, 3: CP+2*S / 3<RTD< CP+3*S (S= Th - maxRTD-CP).Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO30

[0096] FIG. 3 shows an example of a process flow 300 that supports techniques for lower-layer triggered mobility measurement reporting 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 and the wireless communications system 200. For example, the process flow 300 may include a UE 115-b, a network entity 105-d, a network entity 105-e, and a network entity 105-f, which may be examples of the corresponding devices as described with respect to FIGs. 1 and 2. For example, each network entity may correspond to a respective cell. For example, the network entity 105-d may be associated with a serving cell. The network entity 105-e and the network entity 105-f may be associated with respective candidate cells or neighbor cells. In the following description of the process flow 300, the operations between the UE 115-b, the network entity 105-d, the network entity 105-e, and the network entity 105-f may be performed in a different order than the example order shown. Some operations may also 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.

[0097] At 305, the UE 115-b may receive, from the network entity 105-d associated with the serving cell, configuration information that indicates a measurement configuration for LTM. The measurement configuration may indicate a plurality of C SIRS resources for LTM, and the plurality of CSLRS resources may correspond to a plurality of candidate cells associated with LTM for the UE.

[0098] At 310, the UE 115-b may receive, from at least one of the plurality of candidate cells (e.g., network entity 105-e and network entity 105-f), a neighbor cell CSLRS on one of the plurality of CSLRS resources in accordance with the measurement configuration.

[0099] At 315, the UE 115-b may determine whether to transmit a measurement report associated with the neighbor cell CSLRS. The determination may be based on a comparison of a RTD of the neighbor cell CSLRS with a threshold. The RTD of the neighbor cell CSLRS is with respect to a reception timing of a serving cell (e.g., network entity 105-d), and the threshold is greater than a cyclic prefix of an OFDM signal. In some cases, the UE may abstain from transmitting the measurement report Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO31based on the RTD of the neighbor cell CSI-RS being greater than the threshold. In some cases, the UE 115-a may receive a configuration indicating the threshold.

[0100] At 320, the UE 115-b may transmit, to the serving cell (e.g., network entity 105-d), the measurement report based on the RTD of the neighbor cell CSI-RS being less than the threshold. In some cases, the UE 115-b may transmit the measurement report based on a measurement accuracy requirement, and the measurement accuracy requirement may be based on the RTD of the neighbor cell CSI-RS. In some cases, the UE 115-b may receive, from the serving cell (e.g., network entity 105-d), configuration indicating the measurement accuracy requirement. In some examples, the measurement accuracy requirement may include a first measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is less than the cyclic prefix of the OFDM signal, and a second measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is greater than the cyclic prefix of the OFDM signal and less than the threshold. In some cases, the measurement accuracy requirement may be based on the threshold.

[0101] At 325, the UE 115-b may transmit, to the serving cell (e.g., network entity 105-d), an indication of the RTD of the neighbor cell CSI-RS. In some cases, the UE 115-b may transmit, to the serving cell (e.g., network entity 105-d), UE assistance information indicating the RTD of the neighbor cell CSI-RS. In some examples, the indication of the RTD of the neighbor cell CSI-RS comprises one of the following: a first value indicating that the RTD is less than a cyclic prefix, a second value indicating that the RTD is greater than the cyclic prefix, a third value indicating that the RTD is greater than N times the cyclic prefix and less than N+l times the cyclic prefix (where N is an integer), a fourth value indicating that the RTD is greater than the cyclic prefix and less than the threshold, and a fifth value indicating that the RTD is within a k-th interval between cyclic prefix and the threshold (where k is an integer). In some examples, the measurement report indicates the RTD of the neighbor cell CSI-RS. In some cases, the UE 115-b may receive, from the serving cell (e.g., network entity 105-d), configuration indicating an RTD reporting configuration.

[0102] In some cases, the UE 115-b may receive, from the one of the plurality of candidate cells (e.g., network entity 105-e or network entity 105-f), more than one neighbor cell CSI-RSs. The UE 115-b may transmit, to the serving cell (e.g., networkAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO32entity 105-d), an indication of a largest RTD associated with the more than one neighbor cell CSI-RSs from the one of the plurality of candidate cells.

[0103] FIG. 4 shows a block diagram 400 of a device 405 that supports techniques for lower-layer triggered mobility measurement reporting 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).

[0104] 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 techniques for lower-layer triggered mobility measurement reporting). 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.

[0105] 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 techniques for lower-layer triggered mobility measurement reporting). 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.

[0106] 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 techniques for lower-layer triggered mobility measurement reporting as described herein. For example, the communications manager 420, the receiver 410,Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO33the transmitter 415, or various combinations or components thereof may be capable of performing one or more of the functions described herein.

[0107] 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).

[0108] 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).

[0109] 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.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO34

[0110] The communications manager 420 may support wireless communication 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 configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a set of multiple CSI-reference signal (CSLRS) resources for LTM, where the set of multiple CS RS resources corresponds to a set of multiple candidate cells associated with LTM for the UE. The communications manager 420 is capable of, configured to, or operable to support a means for receiving, from at least one of the set of multiple candidate cells, a neighbor cell CSI-RS on one of the set of multiple CSLRS resources in accordance with the measurement configuration. The communications manager 420 is capable of, configured to, or operable to support a means for determining whether to transmit a measurement report associated with the neighbor cell CSLRS, where the determination is based on a comparison of a received timing difference (RTD) of the neighbor cell CSLRS with a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0111] 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 more efficient utilization of communication resources.

[0112] FIG. 5 shows a block diagram 500 of a device 505 that supports techniques for lower-layer triggered mobility measurement reporting 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).Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO35

[0113] 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 techniques for lower-layer triggered mobility measurement reporting). 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.

[0114] 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 techniques for lower-layer triggered mobility measurement reporting). 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.

[0115] The device 505, or various components thereof, may be an example of means for performing various aspects of techniques for lower-layer triggered mobility measurement reporting as described herein. For example, the communications manager 520 may include a measurement configuration manager 525, a neighbor cell CSI-RS manager 530, a measurement report 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.

[0116] The communications manager 520 may support wireless communication in accordance with examples as disclosed herein. The measurement configuration manager 525 is capable of, configured to, or operable to support a means for receiving configuration information that indicates a measurement configuration for layer 1 (LI) / Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO36layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a set of multiple CSI-reference signal (CSI-RS) resources for LTM, where the set of multiple CSLRS resources corresponds to a set of multiple candidate cells associated with LTM for the UE. The neighbor cell CSLRS manager 530 is capable of, configured to, or operable to support a means for receiving, from at least one of the set of multiple candidate cells, a neighbor cell CSI-RS on one of the set of multiple CSI-RS resources in accordance with the measurement configuration. The measurement report manager 535 is capable of, configured to, or operable to support a means for determining whether to transmit a measurement report associated with the neighbor cell CSI-RS, where the determination is based on a comparison of a received timing difference (RTD) of the neighbor cell CSI-RS with a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0117] FIG. 6 shows a block diagram 600 of a communications manager 620 that supports techniques for lower-layer triggered mobility measurement reporting 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 techniques for lower-layer triggered mobility measurement reporting as described herein. For example, the communications manager 620 may include a measurement configuration manager 625, a neighbor cell CSI-RS manager 630, a measurement report manager 635, a threshold manager 640, an RTD manager 645, an RTD configuration manager 650, 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).

[0118] The communications manager 620 may support wireless communication in accordance with examples as disclosed herein. The measurement configuration manager 625 is capable of, configured to, or operable to support a means for receiving configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a setAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO37of multiple CSI-reference signal (CSI-RS) resources for LTM, where the set of multiple CSI-RS resources corresponds to a set of multiple candidate cells associated with LTM for the UE. The neighbor cell CSI-RS manager 630 is capable of, configured to, or operable to support a means for receiving, from at least one of the set of multiple candidate cells, a neighbor cell CSI-RS on one of the set of multiple CSI-RS resources in accordance with the measurement configuration. The measurement report manager 635 is capable of, configured to, or operable to support a means for determining whether to transmit a measurement report associated with the neighbor cell CSI-RS, where the determination is based on a comparison of a received timing difference (RTD) of the neighbor cell CSI-RS with a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0119] In some examples, the measurement report manager 635 is capable of, configured to, or operable to support a means for abstaining from transmitting the measurement report based on the RTD of the neighbor cell CSI-RS being greater than the threshold.

[0120] In some examples, the measurement report manager 635 is capable of, configured to, or operable to support a means for transmitting the measurement report based on the RTD of the neighbor cell CSI-RS being less than the threshold.

[0121] In some examples, to support transmitting the measurement report, the measurement report manager 635 is capable of, configured to, or operable to support a means for transmitting the measurement report based on a measurement accuracy requirement, where the measurement accuracy requirement is based on the RTD of the neighbor cell CSI-RS.

[0122] In some examples, configuration information may indicate the measurement accuracy requirement.

[0123] In some examples, the measurement accuracy requirement includes a first measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is less than the cyclic prefix of the OFDM signal, and a second measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is greater than the cyclic prefix of the OFDM signal and less than the threshold.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO38

[0124] In some examples, the measurement accuracy requirement is based on the threshold.

[0125] In some examples, the configuration information indicates the threshold.

[0126] In some examples, the RTD manager 645 is capable of, configured to, or operable to support a means for transmitting an indication of the RTD of the neighbor cell CSI-RS.

[0127] In some examples, the RTD manager 645 is capable of, configured to, or operable to support a means for transmitting UE assistance information indicating the RTD of the neighbor cell CSI-RS.

[0128] In some examples, the indication of the RTD of the neighbor cell CSI-RS comprises one of the following: a first value indicating that the RTD is less than a cyclic prefix, a second value indicating that the RTD is greater than the cyclic prefix, a third value indicating that the RTD is greater than N times the cyclic prefix and less than N+l times the cyclic prefix (where N is an integer), a fourth value indicating that the RTD is greater than the cyclic prefix and less than the threshold, and a fifth value indicating that the RTD is within a k-th interval between cyclic prefix and the threshold (where k is an integer).

[0129] In some examples, the measurement report indicates the RTD of the neighbor cell CSI-RS.

[0130] In some examples, to support receiving the neighbor cell CSI-RS, the neighbor cell CSI-RS manager 630 is capable of, configured to, or operable to support a means for receiving, from the one of the set of multiple candidate cells, more than one neighbor cell CSI-RSs.

[0131] In some examples, the RTD manager 645 is capable of, configured to, or operable to support a means for transmitting an indication of a largest RTD associated with the more than one neighbor cell CSI-RSs from the one of the set of multiple candidate cells.

[0132] In some examples, the configuration information indicates an RTD reporting configuration.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO39

[0133] FIG. 7 shows a diagram of a system 700 including a device 705 that supports techniques for lower-layer triggered mobility measurement reporting 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).

[0134] 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 iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, 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.

[0135] 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,Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO40and 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.

[0136] 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.

[0137] 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 techniques for lower-layer triggered mobility measurement reporting). 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 oneAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO41processor 740 and the at least one memory 730 configured to perform various functions described herein.

[0138] 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.

[0139] The communications manager 720 may support wireless communication 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 configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a set of multiple CSI-reference signal (CSLRS) resources for LTM, where the set of multiple CS RS resources corresponds to a set of multiple candidate cells associated with LTM for the UE. The communications manager 720 is capable of, configured to, or operable to support a means for receiving, from at least one of the set of multiple candidate cells, a neighbor cell CSI-RS on one of the set of multiple CSLRS resources in accordance with the measurement configuration. The communications manager 720 is capable of, configured to, or operable to support a means for determining whether to transmit aAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO42measurement report associated with the neighbor cell CSI-RS, where the determination is based on a comparison of a received timing difference (RTD) of the neighbor cell CSI-RS with a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0140] By including or configuring the communications manager 720 in accordance with examples as described herein, the device 705 may support techniques for improved communication reliability, reduced latency, more efficient utilization of communication resources, and improved coordination between devices.

[0141] 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 techniques for lower-layer triggered mobility measurement reporting 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.

[0142] FIG. 8 shows a block diagram 800 of a device 805 that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure. The device 805 may be an example of aspects of a network entity 105 as described herein. The device 805 may include a receiver 810, a transmitter 815, and a communications manager 820. The device 805, or one or more components of the device 805 (e.g., the receiver 810, the transmitter 815, the communications manager 820), 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).Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO43

[0143] The receiver 810 may provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). Information may be passed on to other components of the device 805. In some examples, the receiver 810 may support obtaining information by receiving signals via one or more antennas.Additionally, or alternatively, the receiver 810 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.

[0144] The transmitter 815 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 805. For example, the transmitter 815 may output information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). In some examples, the transmitter 815 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 815 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 815 and the receiver 810 may be co-located in a transceiver, which may include or be coupled with a modem.

[0145] The communications manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof may be examples of means for performing various aspects of techniques for lower-layer triggered mobility measurement reporting as described herein. For example, the communications manager 820, the receiver 810, the transmitter 815, or various combinations or components thereof may be capable of performing one or more of the functions described herein.

[0146] In some examples, the communications manager 820, the receiver 810, the transmitter 815, 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 DSP, a CPU, an ASIC, an FPGA or other programmable Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO44logic 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).

[0147] Additionally, or alternatively, the communications manager 820, the receiver 810, the transmitter 815, 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 820, the receiver 810, the transmitter 815, 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).

[0148] In some examples, the communications manager 820 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 810, the transmitter 815, or both. For example, the communications manager 820 may receive information from the receiver 810, send information to the transmitter 815, or be integrated in combination with the receiver 810, the transmitter 815, or both to obtain information, output information, or perform various other operations as described herein.

[0149] The communications manager 820 may support wireless communication in accordance with examples as disclosed herein. For example, the communications manager 820 is capable of, configured to, or operable to support a means for outputting, for a UE, configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a set of multiple CSI-reference signal (CSLRS) resources for LTM, where the set of multiple CSLRS resources corresponds to a set of multiple candidate cells Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO45associated with LTM for the UE. The communications manager 820 is capable of, configured to, or operable to support a means for obtaining a measurement report associated with a neighbor cell CSI-RS of one of the set of multiple candidate cells on one of the set of multiple CSI-RS resources in accordance with the measurement configuration, where a RTD of the neighbor cell CSI-RS is less than a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0150] By including or configuring the communications manager 820 in accordance with examples as described herein, the device 805 (e.g., at least one processor controlling or otherwise coupled with the receiver 810, the transmitter 815, the communications manager 820, or a combination thereof) may support techniques for more efficient utilization of communication resources.

[0151] FIG. 9 shows a block diagram 900 of a device 905 that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure. The device 905 may be an example of aspects of a device 805 or a network entity 105 as described herein. The device 905 may include a receiver 910, a transmitter 915, and a communications manager 920. The device 905, or one or more components of the device 905 (e.g., the receiver 910, the transmitter 915, the communications manager 920), 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).

[0152] The receiver 910 may provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). Information may be passed on to other components of the device 905. In some examples, the receiver 910 may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 910 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO46

[0153] The transmitter 915 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 905. For example, the transmitter 915 may output information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). In some examples, the transmitter 915 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 915 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 915 and the receiver 910 may be co-located in a transceiver, which may include or be coupled with a modem.

[0154] The device 905, or various components thereof, may be an example of means for performing various aspects of techniques for lower-layer triggered mobility measurement reporting as described herein. For example, the communications manager 920 may include a measurement configuration manager 925 a measurement report manager 930, or any combination thereof. The communications manager 920 may be an example of aspects of a communications manager 820 as described herein. In some examples, the communications manager 920, 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 910, the transmitter 915, or both. For example, the communications manager 920 may receive information from the receiver 910, send information to the transmitter 915, or be integrated in combination with the receiver 910, the transmitter 915, or both to obtain information, output information, or perform various other operations as described herein.

[0155] The communications manager 920 may support wireless communication in accordance with examples as disclosed herein. The measurement configuration manager 925 is capable of, configured to, or operable to support a means for outputting, for a UE, configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a set of multiple CSI-reference signal (CSLRS) resources for LTM, where the set of multipleAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO47CSI-RS resources corresponds to a set of multiple candidate cells associated with LTM for the UE. The measurement report manager 930 is capable of, configured to, or operable to support a means for obtaining a measurement report associated with a neighbor cell CSI-RS of one of the set of multiple candidate cells on one of the set of multiple CSI-RS resources in accordance with the measurement configuration, where a RTD of the neighbor cell CSI-RS is less than a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0156] FIG. 10 shows a block diagram 1000 of a communications manager 1020 that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure. The communications manager 1020 may be an example of aspects of a communications manager 820, a communications manager 920, or both, as described herein. The communications manager 1020, or various components thereof, may be an example of means for performing various aspects of techniques for lower-layer triggered mobility measurement reporting as described herein. For example, the communications manager 1020 may include a measurement configuration manager 1025, a measurement report manager 1030, a threshold manager 1035, an RTD manager 1040, an RTD configuration manager 1045, 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). The communications may include communications within a protocol layer of a protocol stack, communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack, within a device, component, or virtualized component associated with a network entity 105, between devices, components, or virtualized components associated with a network entity 105), or any combination thereof.

[0157] The communications manager 1020 may support wireless communication in accordance with examples as disclosed herein. The measurement configuration manager 1025 is capable of, configured to, or operable to support a means for outputting, for a UE, configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicatingAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO48a set of multiple CSI-reference signal (CSI-RS) resources for LTM, where the set of multiple CSI-RS resources corresponds to a set of multiple candidate cells associated with LTM for the UE. The measurement report manager 1030 is capable of, configured to, or operable to support a means for obtaining a measurement report associated with a neighbor cell CSI-RS of one of the set of multiple candidate cells on one of the set of multiple CSI-RS resources in accordance with the measurement configuration, where a RTD of the neighbor cell CSI-RS is less than a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0158] In some examples, the measurement report is based on a measurement accuracy requirement, where the measurement accuracy requirement is based on the RTD of the neighbor cell CSI-RS.

[0159] In some examples, the configuration information indicates the measurement accuracy requirement.

[0160] In some examples, the measurement accuracy requirement conforms to a first measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is less than the cyclic prefix of the OFDM signal, and a second measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is greater than the cyclic prefix of the OFDM signal and less than the threshold.

[0161] In some examples, the measurement accuracy requirement is based on the threshold.

[0162] In some examples, the configuration information indicates the threshold.

[0163] In some examples, the RTD manager 1040 is capable of, configured to, or operable to support a means for obtaining an indication of the RTD of the neighbor cell CSI-RS.

[0164] In some examples, the RTD manager 1040 is capable of, configured to, or operable to support a means for obtaining UE assistance information indicating the RTD of the neighbor cell CSI-RS.

[0165] In some examples, the indication of the RTD of the neighbor cell CSI-RS comprises one of the following: a first value indicating that the RTD is less than a cyclicAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO49prefix, a second value indicating that the RTD is greater than the cyclic prefix, a third value indicating that the RTD is greater than N times the cyclic prefix and less than N+l times the cyclic prefix (where N is an integer), a fourth value indicating that the RTD is greater than the cyclic prefix and less than the threshold, and a fifth value indicating that the RTD is within a k-th interval between cyclic prefix and the threshold (where k is an integer).

[0166] In some examples, the measurement report indicates the RTD of the neighbor cell CSI-RS.

[0167] In some examples, the RTD manager 1040 is capable of, configured to, or operable to support a means for obtaining an indication of a largest RTD associated with more than one neighbor cell CSI-RSs from the one of the set of multiple candidate cells.

[0168] In some examples, the configuration information indicates an RTD reporting configuration.

[0169] FIG. 11 shows a diagram of a system 1100 including a device 1105 that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure. The device 1105 may be an example of or include components of a device 805, a device 905, or a network entity 105 as described herein. The device 1105 may communicate with other network devices or network equipment such as one or more of the network entities 105, UEs 115, or any combination thereof. The communications may include communications over one or more wired interfaces, over one or more wireless interfaces, or any combination thereof. The device 1105 may include components that support outputting and obtaining communications, such as a communications manager 1120, a transceiver 1110, one or more antennas 1115, at least one memory 1125, code 1130, and at least one processor 1135. 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 1140).

[0170] The transceiver 1110 may support bi-directional communications via wired links, wireless links, or both as described herein. In some examples, the transceiver 1110 may include a wired transceiver and may communicate bi-directionally with another wired transceiver. Additionally, or alternatively, in some examples, theAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO50transceiver 1110 may include a wireless transceiver and may communicate bidirectionally with another wireless transceiver. In some examples, the device 1105 may include one or more antennas 1115, which may be capable of transmitting or receiving wireless transmissions (e.g., concurrently). The transceiver 1110 may also include a modem to modulate signals, to provide the modulated signals for transmission (e.g., by one or more antennas 1115, by a wired transmitter), to receive modulated signals (e.g., from one or more antennas 1115, from a wired receiver), and to demodulate signals. In some implementations, the transceiver 1110 may include one or more interfaces, such as one or more interfaces coupled with the one or more antennas 1115 that are configured to support various receiving or obtaining operations, or one or more interfaces coupled with the one or more antennas 1115 that are configured to support various transmitting or outputting operations, or a combination thereof. In some implementations, the transceiver 1110 may include or be configured for coupling with one or more processors or one or more memory components that are operable to perform or support operations based on received or obtained information or signals, or to generate information or other signals for transmission or other outputting, or any combination thereof. In some implementations, the transceiver 1110, or the transceiver 1110 and the one or more antennas 1115, or the transceiver 1110 and the one or more antennas 1115 and one or more processors or one or more memory components (e.g., the at least one processor 1135, the at least one memory 1125, or both), may be included in a chip or chip assembly that is installed in the device 1105. In some examples, the transceiver 1110 may be operable to support communications via one or more communications links (e.g., communication link(s) 125, backhaul communication link(s) 120, a midhaul communication link 162, a fronthaul communication link 168).

[0171] The at least one memory 1125 may include RAM, ROM, or any combination thereof. The at least one memory 1125 may store computer-readable, computerexecutable, or processor-executable code, such as the code 1130. The code 1130 may include instructions that, when executed by one or more of the at least one processor 1135, cause the device 1105 to perform various functions described herein. The code 1130 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1130 may not be directly executable by a processor of the at least one processor 1135 but may cause a computerAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO51(e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 1125 may include, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices. In some examples, the at least one processor 1135 may include multiple processors and the at least one memory 1125 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories which may, individually or collectively, be configured to perform various functions herein (for example, as part of a processing system).

[0172] The at least one processor 1135 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 1135 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into one or more of the at least one processor 1135. The at least one processor 1135 may be configured to execute computer-readable instructions stored in a memory (e.g., one or more of the at least one memory 1125) to cause the device 1105 to perform various functions (e.g., functions or tasks supporting techniques for lower-layer triggered mobility measurement reporting). For example, the device 1105 or a component of the device 1105 may include at least one processor 1135 and at least one memory 1125 coupled with one or more of the at least one processor 1135, the at least one processor 1135 and the at least one memory 1125 configured to perform various functions described herein. The at least one processor 1135 may be an example of a cloudcomputing platform (e.g., one or more physical nodes and supporting software such as operating systems, virtual machines, or container instances) that may host the functions (e.g., by executing code 1130) to perform the functions of the device 1105. The at least one processor 1135 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in the device 1105 (such as within one or more of the at least one memory 1125).Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO52

[0173] In some examples, the at least one processor 1135 may include multiple processors and the at least one memory 1125 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein. In some examples, the at least one processor 1135 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 1135) and memory circuitry (which may include the at least one memory 1125)), 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 1135 or a processing system including the at least one processor 1135 may be configured to, configurable to, or operable to cause the device 1105 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 stored in the at least one memory 1125 or otherwise, to perform one or more of the functions described herein.

[0174] In some examples, a bus 1140 may support communications of (e.g., within) a protocol layer of a protocol stack. In some examples, a bus 1140 may support communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack), which may include communications performed within a component of the device 1105, or between different components of the device 1105 that may be co-located or located in different locations (e.g., where the device 1105 may refer to a system in which one or more of the communications manager 1120, the transceiver 1110, the at least one memory 1125, the code 1130, and the at least one processor 1135 may be located in one of the different components or divided between different components).

[0175] In some examples, the communications manager 1120 may manage aspects of communications with a core network 130 (e.g., via one or more wired or wireless backhaul links). For example, the communications manager 1120 may manage the transfer of data communications for client devices, such as one or more UEs 115. InAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO53some examples, the communications manager 1120 may manage communications with one or more other network entities 105, and may include a controller or scheduler for controlling communications with UEs 115 (e.g., in cooperation with the one or more other network devices). In some examples, the communications manager 1120 may support an X2 interface within an LTE / LTE-A wireless communications network technology to provide communication between network entities 105.

[0176] The communications manager 1120 may support wireless communication in accordance with examples as disclosed herein. For example, the communications manager 1120 is capable of, configured to, or operable to support a means for outputting, for a UE, configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a set of multiple CSI-reference signal (CSLRS) resources for LTM, where the set of multiple CSI-RS resources corresponds to a set of multiple candidate cells associated with LTM for the UE. The communications manager 1120 is capable of, configured to, or operable to support a means for obtaining a measurement report associated with a neighbor cell CSLRS of one of the set of multiple candidate cells on one of the set of multiple CSI-RS resources in accordance with the measurement configuration, where a RTD of the neighbor cell CSI-RS is less than a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal.

[0177] By including or configuring the communications manager 1120 in accordance with examples as described herein, the device 1105 may support techniques for improved communication reliability, more efficient utilization of communication resources, and improved coordination between devices.

[0178] In some examples, the communications manager 1120 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the transceiver 1110, the one or more antennas 1115 (e.g., where applicable), or any combination thereof. Although the communications manager 1120 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1120 may be supported by or performed by the transceiver 1110, one or more Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO54of the at least one processor 1135, one or more of the at least one memory 1125, the code 1130, or any combination thereof (for example, by a processing system including at least a portion of the at least one processor 1135, the at least one memory 1125, the code 1130, or any combination thereof). For example, the code 1130 may include instructions executable by one or more of the at least one processor 1135 to cause the device 1105 to perform various aspects of techniques for lower-layer triggered mobility measurement reporting as described herein, or the at least one processor 1135 and the at least one memory 1125 may be otherwise configured to, individually or collectively, perform or support such operations.

[0179] FIG. 12 shows a flowchart illustrating a method 1200 that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure. The operations of the method 1200 may be implemented by a UE or its components as described herein. For example, the operations of the method 1200 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.

[0180] At 1205, the method may include receiving configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a set of multiple CSI-reference signal (CSLRS) resources for LTM, where the set of multiple CSLRS resources corresponds to a set of multiple candidate cells associated with LTM for the UE. The operations of 1205 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1205 may be performed by a measurement configuration manager 625 as described with reference to FIG. 6.

[0181] At 1210, the method may include receiving, from at least one of the set of multiple candidate cells, a neighbor cell CSLRS on one of the set of multiple CSI-RS resources in accordance with the measurement configuration. The operations of 1210 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1210 may be performed by a neighbor cell CSI-RS manager 630 as described with reference to FIG. 6.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO55

[0182] At 1215, the method may include determining whether to transmit a measurement report associated with the neighbor cell CSI-RS, where the determination is based on a comparison of a received timing difference (RTD) of the neighbor cell CSI-RS with a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal. The operations of 1215 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1215 may be performed by a measurement report manager 635 as described with reference to FIG. 6.

[0183] FIG. 13 shows a flowchart illustrating a method 1300 that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure. The operations of the method 1300 may be implemented by a UE or its components as described herein. For example, the operations of the method 1300 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.

[0184] At 1305, the method may include receiving configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a set of multiple CSI-reference signal (CSI-RS) resources for LTM, where the set of multiple CSI-RS resources corresponds to a set of multiple candidate cells associated with LTM for the UE. The operations of 1305 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1305 may be performed by a measurement configuration manager 625 as described with reference to FIG. 6.

[0185] At 1310, the method may include receiving, from at least one of the set of multiple candidate cells, a neighbor cell CSI-RS on one of the set of multiple CSI-RS resources in accordance with the measurement configuration. The operations of 1310 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1310 may be performed by a neighbor cell CSI-RS manager 630 as described with reference to FIG. 6.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO56

[0186] At 1315, the method may include determining whether to transmit a measurement report associated with the neighbor cell CSI-RS, where the determination is based on a comparison of a received timing difference (RTD) of the neighbor cell CSI-RS with a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal. The operations of 1315 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1315 may be performed by a measurement report manager 635 as described with reference to FIG. 6.

[0187] At 1320, the method may include transmitting the measurement report based on the RTD of the neighbor cell CSI-RS being less than the threshold. The operations of 1320 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1320 may be performed by a measurement report manager 635 as described with reference to FIG. 6.

[0188] FIG. 14 shows a flowchart illustrating a method 1400 that supports techniques for lower-layer triggered mobility measurement reporting in accordance with one or more aspects of the present disclosure. The operations of the method 1400 may be implemented by a network entity or its components as described herein. For example, the operations of the method 1400 may be performed by a network entity as described with reference to FIGs. 1 through 3 and 8 through 11. In some examples, a network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally, or alternatively, the network entity may perform aspects of the described functions using special-purpose hardware.

[0189] At 1405, the method may include outputting, for a UE, configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a set of multiple CSI-reference signal (CSI-RS) resources for LTM, where the set of multiple CSI-RS resources corresponds to a set of multiple candidate cells associated with LTM for the UE. The operations of 1405 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1405 may beAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO57performed by a measurement configuration manager 1025 as described with reference to FIG. 10.

[0190] At 1410, the method may include obtaining a measurement report associated with a neighbor cell CSI-RS of one of the set of multiple candidate cells on one of the set of multiple CSI-RS resources in accordance with the measurement configuration, where a RTD of the neighbor cell CSI-RS bis less than a threshold, where the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and where the threshold is greater than a cyclic prefix of an OFDM signal. The operations of 1410 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1410 may be performed by a measurement report manager 1030 as described with reference to FIG. 10.

[0191] Aspect 1 : A method for wireless communication at a UE, comprising: receiving configuration information that indicates a measurement configuration for LTM, the measurement configuration indicating a plurality of CSI-RS resources for LTM, wherein the plurality of CSI-RS resources corresponds to a plurality of candidate cells associated with LTM for the UE; receiving, from at least one of the plurality of candidate cells, a neighbor cell CSI-RS on one of the plurality of CSI-RS resources in accordance with the measurement configuration; and determining whether to transmit a measurement report associated with the neighbor cell CSI-RS, wherein the determination is based at least in part on a comparison of a RTD of the neighbor cell CSI-RS with a threshold, wherein the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and wherein the threshold is greater than a cyclic prefix of an OFDM signal.

[0192] Aspect 2: The method of aspect 1, further comprising: abstaining from transmitting the measurement report based at least in part on the RTD of the neighbor cell CSI-RS being greater than the threshold.

[0193] Aspect 3: The method of aspect 1, further comprising: transmitting the measurement report based at least in part on the RTD of the neighbor cell CSI-RS being less than the threshold.

[0194] Aspect 4: The method of aspect 3, wherein transmitting the measurement report further comprises: transmitting the measurement report based at least in part on aAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO58measurement accuracy requirement, wherein the measurement accuracy requirement is based at least in part on the RTD of the neighbor cell CSI-RS.

[0195] Aspect 5: The method of aspect 4, wherein the configuration information indicates the measurement accuracy requirement.

[0196] Aspect 6: The method of any of aspects 4 through 5, wherein the measurement accuracy requirement includes a first measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is less than the cyclic prefix of the OFDM signal, and a second measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is greater than the cyclic prefix of the OFDM signal and less than the threshold.

[0197] Aspect 7: The method of any of aspects 4 through 6, wherein the measurement accuracy requirement is based at least in part on the threshold.

[0198] Aspect 8: The method of any of aspects 1 through 7, wherein the configuration information indicates the threshold.

[0199] Aspect 9: The method of any of aspects 1 through 8, further comprising: transmitting an indication of the RTD of the neighbor cell CSI-RS.

[0200] Aspect 10: The method of aspect 9, wherein transmitting an indication of the RTD further comprising: transmitting UE assistance information indicating the RTD of the neighbor cell CSI-RS.

[0201] Aspect 11 : The method of any of aspects 9 through 10, wherein the indication of the RTD of the neighbor cell CSI-RS comprises one of the following: a first value indicating that the RTD is less than a cyclic prefix, a second value indicating that the RTD is greater than the cyclic prefix, a third value indicating that the RTD is greater than N times the cyclic prefix and less than N+l times the cyclic prefix, where N is an integer, a fourth value indicating that the RTD is greater than the cyclic prefix and less than the threshold, and a fifth value indicating that the RTD is within k-th interval between cyclic prefix and the threshold, where k is an integer.

[0202] Aspect 12: The method of aspect 1, wherein the measurement report indicates the RTD of the neighbor cell CSI-RS.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO59

[0203] Aspect 13: The method of aspect 1, wherein receiving the neighbor cell CSI-RS further comprises: receiving, from the one of the plurality of candidate cells, more than one neighbor cell CSI-RSs.

[0204] Aspect 14: The method of aspect 13, further comprising: transmitting an indication of a largest RTD associated with the more than one neighbor cell CSI-RSs from the one of the plurality of candidate cells.

[0205] Aspect 15: The method of any of aspects 1 through 14, wherein the configuration information indicates an RTD reporting configuration.

[0206] Aspect 16: A method for wireless communication at a network entity, comprising: outputting, for a UE, configuration information that indicates a measurement configuration for LTM, the measurement configuration indicating a plurality of CSI-RS resources for LTM, wherein the plurality of CSLRS resources corresponds to a plurality of candidate cells associated with LTM for the UE; and obtaining a measurement report associated with a neighbor cell CSLRS of one of the plurality of candidate cells on one of the plurality of CSLRS resources in accordance with the measurement configuration, wherein a RTD of the neighbor cell CSLRS is less than a threshold, wherein the RTD of the neighbor cell CSLRS is with respect to a reception timing of a serving cell, and wherein the threshold is greater than a cyclic prefix of an OFDM signal.

[0207] Aspect 17: The method of aspect 16, wherein the measurement accuracy requirement is based at least in part on the RTD of the neighbor cell CSLRS.

[0208] Aspect 18: The method of aspect 17, wherein the configuration information indicates the measurement accuracy requirement.

[0209] Aspect 19: The method of any of aspects 17 through 18, wherein the measurement accuracy requirement conforms to a first measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is less than the cyclic prefix of the OFDM signal, and a second measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is greater than the cyclic prefix of the OFDM signal and less than the threshold.

[0210] Aspect 20: The method of any of aspects 17 through 19, wherein the measurement accuracy requirement is based at least in part on the threshold.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO60

[0211] Aspect 21 : The method of any of aspects 16 through 20, wherein the configuration information indicates the threshold.

[0212] Aspect 22: The method of any of aspects 16 through 21, further comprising: obtaining an indication of the RTD of the neighbor cell CSI-RS.

[0213] Aspect 23 : The method of aspect 22, wherein obtaining the indication of the RTD further comprising: obtaining UE assistance information indicating the RTD of the neighbor cell CSI-RS.

[0214] Aspect 24: The method of any of aspects 22 through 23, wherein the indication of the RTD of the neighbor cell CSI-RS comprises one of the following: a first value indicating that the RTD is less than a cyclic prefix, a second value indicating that the RTD is greater than the cyclic prefix, a third value indicating that the RTD is greater than N times the cyclic prefix and less than N+l times the cyclic prefix, where N is an integer, a fourth value indicating that the RTD is greater than the cyclic prefix and less than the threshold, and a fifth value indicating that the RTD is within k-th interval between cyclic prefix and the threshold, where k is an integer.

[0215] Aspect 25: The method of aspect 16, wherein the measurement report indicates the RTD of the neighbor cell CSI-RS.

[0216] Aspect 26: The method of aspect 16, further comprising: obtaining an indication of a largest RTD associated with more than one neighbor cell CSI-RSs from the one of the plurality of candidate cells.

[0217] Aspect 27: The method of any of aspects 16 through 26, wherein the configuration information indicates an RTD reporting configuration.

[0218] Aspect 28: A UE for wireless communication, comprising a processing system that includes processor circuitry and memory circuitry that stores code, the processing system configured to cause the UE to perform a method of any of aspects 1 through 15.

[0219] Aspect 29: A UE for wireless communication, comprising at least one means for performing a method of any of aspects 1 through 15.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO61

[0220] Aspect 30: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to perform a method of any of aspects 1 through 15.

[0221] Aspect 31 : A network entity for wireless communication, comprising a processing system that includes processor circuitry and memory circuitry that stores code, the processing system configured to cause the network entity to perform a method of any of aspects 16 through 27.

[0222] Aspect 32: A network entity for wireless communication, comprising at least one means for performing a method of any of aspects 16 through 27.

[0223] Aspect 33: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to perform a method of any of aspects 16 through 27

[0224] 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.

[0225] 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.

[0226] 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.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO62

[0227] 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.

[0228] 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.

[0229] 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 mayAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO63be 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.

[0230] 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.”

[0231] 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 particularAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO64function. 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.”

[0232] 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.

[0233] 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.

[0234] 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,Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO65known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.

[0235] 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.Attorney Docket No. PY3057.WO (114958.TBD)

Claims

Qualcomm Ref. No. 2502909WO66CLAIMSWhat is claimed is:

1. A user equipment (UE), 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:receive configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a plurality of channel state information reference signal (CSI-RS) resources for LTM, wherein the plurality of CSI-RS resources corresponds to a plurality of candidate cells associated with LTM for the UE;receive, from at least one of the plurality of candidate cells, a neighbor cell CSI-RS on one of the plurality of CSI-RS resources in accordance with the measurement configuration; anddetermine whether to transmit a measurement report associated with the neighbor cell CSI-RS, wherein the determination is based at least in part on a comparison of a received timing difference (RTD) of the neighbor cell CSI- RS with a threshold, wherein the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and wherein the threshold is greater than a cyclic prefix of an OFDM signal.

2. The UE of claim 1, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:abstain from transmitting the measurement report based at least in part on the RTD of the neighbor cell CSI-RS being greater than the threshold.

3. The UE of claim 1, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:transmit the measurement report based at least in part on the RTD of the neighbor cell CSI-RS being less than the threshold.Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO674. The UE of claim 3, wherein, to transmit the measurement report, the one or more processors are individually or collectively further operable to execute the code to cause the UE to:transmit the measurement report based at least in part on a measurement accuracy requirement, wherein the measurement accuracy requirement is based at least in part on the RTD of the neighbor cell CSI-RS.

5. The UE of claim 4, wherein the configuration information indicates the measurement accuracy requirement.

6. The UE of claim 4, wherein the measurement accuracy requirement includes a first measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is less than the cyclic prefix of the OFDM signal, and a second measurement accuracy requirement for when the RTD of the neighbor cell CSI-RS is greater than the cyclic prefix of the OFDM signal and less than the threshold.

7. The UE of claim 4, wherein the measurement accuracy requirement is based at least in part on the threshold.

8. The UE of claim 1, wherein the configuration information indicates the threshold.

9. The UE of claim 1, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:transmit an indication of the RTD of the neighbor cell CSI-RS.

10. The UE of claim 9, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:transmit UE assistance information indicating the RTD of the neighbor cell CSI-RS.

11. The UE of claim 9, wherein the indication of the RTD of the neighbor cell CSI-RS comprises one of the following:a first value indicating that the RTD is less than a cyclic prefix, a second value indicating that the RTD is greater than the cyclic prefix,Attorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO68a third value indicating that the RTD is greater than N times the cyclic prefix and less than N+l times the cyclic prefix, where N is an integer,a fourth value indicating that the RTD is greater than the cyclic prefix and less than the threshold, anda fifth value indicating that the RTD is within a k-th interval between cyclic prefix and the threshold, where k is an integer.

12. The UE of claim 1, wherein the measurement report indicates the RTD of the neighbor cell CSI-RS.

13. The UE of claim 1, wherein, to receive the neighbor cell CSI-RS, the one or more processors are individually or collectively further operable to execute the code to cause the UE to:receive, from the one of the plurality of candidate cells, more than one neighbor cell CSI-RSs.

14. The UE of claim 13, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:transmit an indication of a largest RTD associated with the more than one neighbor cell CSI-RSs from the one of the plurality of candidate cells.

15. The UE of claim 1, wherein the configuration information indicates an RTD reporting configuration.

16. A method for wireless communication at a user equipment (UE), comprising:receiving configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a plurality of channel state information reference signal (CSI-RS) resources for LTM, wherein the plurality of CSI-RS resources corresponds to a plurality of candidate cells associated with LTM for the UE;receiving, from at least one of the plurality of candidate cells, a neighbor cell CSI-RS on one of the plurality of CSI-RS resources in accordance with the measurement configuration; andAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO69determining whether to transmit a measurement report associated with the neighbor cell CSI-RS, wherein the determination is based at least in part on a comparison of a received timing difference (RTD) of the neighbor cell CSI-RS with a threshold, wherein the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and wherein the threshold is greater than a cyclic prefix of an OFDM signal.

17. The method of claim 16, further comprising:abstaining from transmitting the measurement report based at least in part on the RTD of the neighbor cell CSI-RS being greater than the threshold.

18. The method of claim 16, further comprising:transmitting the measurement report based at least in part on the RTD of the neighbor cell CSI-RS being less than the threshold.

19. The method of claim 18, wherein transmitting the measurement report further comprises:transmitting the measurement report based at least in part on a measurement accuracy requirement, wherein the measurement accuracy requirement is based at least in part on the RTD of the neighbor cell CSI-RS.

20. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to:receive configuration information that indicates a measurement configuration for layer 1 (LI) / layer 2 (L2) triggered mobility (LTM), the measurement configuration indicating a plurality of channel state information reference signal (CSI-RS) resources for LTM, wherein the plurality of CSI-RS resources corresponds to a plurality of candidate cells associated with LTM for a UE;receive, from at least one of the plurality of candidate cells, a neighbor cell CSI-RS on one of the plurality of CSI-RS resources in accordance with the measurement configuration; anddetermine whether to transmit a measurement report associated with the neighbor cell CSI-RS, wherein the determination is based at least in part on aAttorney Docket No. PY3057.WO (114958.TBD)Qualcomm Ref. No. 2502909WO70comparison of a received timing difference (RTD) of the neighbor cell CSI-RS with a threshold, wherein the RTD of the neighbor cell CSI-RS is with respect to a reception timing of a serving cell, and wherein the threshold is greater than a cyclic prefix of an OFDM signal.Attorney Docket No. PY3057.WO (114958.TBD)

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