Common measurement configuration for l1 / l2 triggering and l3 mobility

Abstract

Exemplary embodiments of this disclosure relate to a solution for a shared measurement configuration for Layer 1 (L1) / Layer 2 (L2) triggering and Layer 3 (L3) mobility. In one aspect, a terminal device receives first configuration information from a network device for performing L3 measurements and reporting. The terminal device receives (i) second configuration information and (ii) third configuration information from the network device, the second configuration information being for performing L1 measurements and reporting for L1 / L2 triggered mobility (LTM), and the third configuration information being for configuring the terminal device to determine at least one of the L1 or L3 measurements to be performed and reported. The terminal device performs and reports the at least one of the L1 or L3 measurements based on the third configuration information.

Description

Technical Field

[0001] Embodiments of this disclosure generally relate to the field of communications, and more specifically to devices, methods, apparatuses, and computer-readable storage media for a shared measurement configuration for L1 / L2 triggering and L3 mobility. Background Technology

[0002] A communication network can be viewed as a facility that enables communication between two or more communication devices or provides communication devices with access to a data network. Mobile or wireless communication networks are an example of communication networks.

[0003] Such communication networks operate according to standards provided by organizations such as 3GPP (3rd Generation Partnership Project) or ETSI (European Telecommunications Standards Institute). An example of such a standard is the so-called 5G (fifth generation) standard provided by 3GPP. Summary of the Invention

[0004] Generally, the example embodiments of this disclosure provide a solution for a common measurement configuration for L1 / L2 triggering and L3 mobility.

[0005] In a first aspect, a terminal device is provided. The terminal device may include: at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the terminal device to at least: receive first configuration information from a network device for performing Layer 3 (L3) measurements and reporting; receive (i) second configuration information and (ii) third configuration information from the network device, the second configuration information being for performing L1 measurements and reporting for Layer 1 L1 / Layer 2 L2 triggered mobility LTM, the third configuration information being for configuring the terminal device to perform and report at least one of L1 measurements or L3 measurements; and perform and report the at least one of L1 measurements or L3 measurements based on the third configuration information.

[0006] In a second aspect, a network device is provided. The network device may include: at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the network device to at least: transmit to an end device first configuration information for performing Layer 3 (L3) measurements and reporting; and transmit to the end device second configuration information regarding Layer 1 (L1) measurements and reporting of L1 / Layer 2 (L2) triggered mobility (LTM); and third configuration information for configuring the end device to perform and report at least one of L1 or L3 measurements.

[0007] In a third aspect, a method is provided. The method may include: receiving from a network device first configuration information for performing Layer 3 (L3) measurements and reporting; receiving from the network device (i) second configuration information and (ii) third configuration information, the second configuration information being for performing Layer 1 (L1) measurements and reporting for L1 / Layer 2 (L2) triggered mobility (LTM), the third configuration information being for configuring a terminal device to perform and report at least one of L1 measurements or L3 measurements; and performing and reporting the at least one of the L1 measurements or L3 measurements based on the third configuration information.

[0008] In a fourth aspect, a method is provided. The method may include: transmitting to a terminal device first configuration information for performing Layer 3 (L3) measurements and reporting; and transmitting to the terminal device second configuration information regarding Layer 1 (L1) measurements and reporting of L1 / Layer 2 (L2) triggered mobility (LTM); and third configuration information for configuring the terminal device to perform and report at least one of L1 measurements or L3 measurements.

[0009] In a fifth aspect, an apparatus is provided. The apparatus may include: components for receiving from a network device first configuration information for performing Layer 3 (L3) measurements and reporting; components for receiving from the network device (i) second configuration information and (ii) third configuration information, the second configuration information being for performing L1 measurements and reporting for Layer 1 L1 / Layer 2 L2 triggered mobility LTM, the third configuration information being for configuring a terminal device to perform and report at least one of L1 measurements or L3 measurements; and components for performing and reporting the at least one of the L1 measurements or L3 measurements based on the third configuration information.

[0010] In a sixth aspect, an apparatus is provided. The apparatus may include: components for transmitting to a terminal device first configuration information for performing Layer 3 (L3) measurements and reporting; second configuration information for transmitting to the terminal device Layer 1 (L1) measurements and reporting regarding L1 / Layer 2 (L2) triggered mobility (LTM); and third configuration information for configuring the terminal device to perform and report at least one of L1 measurements or L3 measurements.

[0011] In a seventh aspect, a non-transient computer-readable medium is provided, comprising program instructions for causing a device to execute at least the method according to a third or fourth aspect.

[0012] In the eighth aspect, a computer program including instructions is provided that, when executed by a device, causes the device to perform at least the method according to the third or fourth aspect.

[0013] In a ninth aspect, a terminal device is provided. The terminal device may include: a first receiving circuitry configured to receive from a network device first configuration information for performing Layer 3 (L3) measurements and reporting; a second receiving circuitry configured to receive from the network device (i) second configuration information and (ii) third configuration information, the second configuration information being used to perform L1 measurements and reporting for Layer 1 L1 / Layer 2 L2 triggered mobility LTM, the third configuration information being used to configure the terminal device to perform and report at least one of L1 measurements or L3 measurements; and an execution and reporting circuitry configured to perform and report the at least one of the L1 measurements or L3 measurements based on the third configuration information.

[0014] In a tenth aspect, a network device is provided. The network device may include: a first transmission circuitry configured to transmit first configuration information to a terminal device for performing Layer 3 (L3) measurements and reporting; and a second transmission circuitry configured to transmit to the terminal device second configuration information regarding Layer 1 (L1) measurements and reporting of L1 / Layer 2 (L2) triggered mobility (LTM), and third configuration information for configuring the terminal device to perform and report at least one of L1 measurements or L3 measurements.

[0015] In an eleventh aspect, a terminal device is provided. The terminal device may include: at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the terminal device to at least: receive first configuration information from a network device for performing Layer 3 (L3) measurements and reporting; receive (i) second configuration information and (ii) third configuration information from the network device, the second configuration information being for performing L1 measurements and reporting for Layer 1 L1 / Layer 2 L2 triggered mobility LTM, the third configuration information being for configuring the terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported; and perform and report the at least one of the L1 measurement or L3 measurement based on the third configuration information.

[0016] In a twelfth aspect, a network device is provided. The network device may include: at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the network device to at least: transmit first configuration information to an end device for performing Layer 3 (L3) measurements and reporting; and transmit (i) second configuration information and (ii) third configuration information to the end device, the second configuration information being used to perform L1 measurements and reporting for Layer 1 L1 / Layer 2 L2 triggered mobility LTM, the third configuration information being used to configure the end device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported.

[0017] In a thirteenth aspect, a method is provided. The method may include: receiving from a network device first configuration information for performing Layer 3 (L3) measurements and reporting; receiving from the network device (i) second configuration information and (ii) third configuration information, the second configuration information being for performing L1 measurements and reporting for Layer 1 L1 / Layer 2 L2 triggered mobility LTM, the third configuration information being for configuring a terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported; and performing and reporting the at least one of the L1 or L3 measurements based on the third configuration information.

[0018] In a fourteenth aspect, a method is provided. The method may include: transmitting to a terminal device first configuration information for performing Layer 3 (L3) measurements and reporting; and transmitting to the terminal device (i) second configuration information and (ii) third configuration information, the second configuration information being for performing L1 measurements and reporting for Layer 1 L1 / Layer 2 L2 triggered mobility LTM, the third configuration information being for configuring the terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported.

[0019] In a fifteenth aspect, an apparatus is provided. The apparatus may include: components for receiving from a network device first configuration information for performing Layer 3 (L3) measurements and reporting; components for receiving from the network device (i) second configuration information and (ii) third configuration information, the second configuration information being for performing L1 measurements and reporting for Layer 1 L1 / Layer 2 L2 triggered mobility LTM, the third configuration information being for configuring a terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported; and components for performing and reporting the at least one of the L1 or L3 measurements based on the third configuration information.

[0020] In a sixteenth aspect, an apparatus is provided. The apparatus may include: components for transmitting to a terminal device first configuration information for performing Layer 3 (L3) measurements and reporting; and components for transmitting to the terminal device (i) second configuration information and (ii) third configuration information, the second configuration information being for performing L1 measurements and reporting for Layer 1 L1 / Layer 2 L2 triggered mobility LTM, the third configuration information being for configuring the terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported.

[0021] In a seventeenth aspect, a non-transient computer-readable medium is provided comprising program instructions for causing an apparatus to perform at least the method according to a thirteenth or fourteenth aspect.

[0022] In the eighteenth aspect, a computer program including instructions is provided that, when executed by a device, causes the device to perform at least one method according to the thirteenth or fourteenth aspect.

[0023] In a nineteenth aspect, a terminal device is provided. The terminal device may include: a first receiving circuitry configured to receive from a network device first configuration information for performing Layer 3 (L3) measurements and reporting; a second receiving circuitry configured to receive from the network device (i) second configuration information and (ii) third configuration information, the second configuration information being used to perform L1 measurements and reporting for Layer 1 L1 / Layer 2 L2 triggered mobility LTM, the third configuration information being used to configure the terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported; and an execution and reporting circuitry configured to perform and report the at least one of the L1 measurement or L3 measurement based on the third configuration information.

[0024] In a twentieth aspect, a network device is provided. The network device may include: a first transmission circuitry configured to transmit first configuration information to a terminal device for performing Layer 3 (L3) measurements and reporting; and a second transmission circuitry configured to transmit (i) second configuration information and (ii) third configuration information to the terminal device, the second configuration information being used for performing L1 measurements and reporting for Layer 1 L1 / Layer 2 L2 triggered mobility LTM, and the third configuration information being used to configure the terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported.

[0025] It should be understood that the summary portion is not intended to identify key or essential features of embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0026] Some exemplary embodiments will now be described with reference to the accompanying drawings, in which:

[0027] Figure 1 An example network environment in which example embodiments of the present disclosure may be implemented is shown;

[0028] Figure 2A An embodiment of an advanced measurement model for L1 / L2 and L3 measurements is shown;

[0029] Figure 2B An example signaling procedure for a handover scenario based on L3 mobility is shown;

[0030] Figure 2C An example signaling procedure for a handover scenario based on L1 / L2 triggered mobility (LTM) is shown;

[0031] Figure 2D An example of a high-level message sequence is shown, in which the UE is configured to perform LTM and L3 mobility measurements and reports;

[0032] Figure 3 Example signaling procedures according to some embodiments of this disclosure are shown;

[0033] Figure 4 Another example signaling flow according to some embodiments of this disclosure is shown;

[0034] Figure 5 Example signaling procedures with a shared measurement configuration having L1 / L2 triggering and L3 mobility according to some embodiments of this application are shown;

[0035] Figure 6A A flowchart is shown illustrating an example method implemented at a terminal device according to some example embodiments of the present disclosure;

[0036] Figure 6B Another flowchart is shown, illustrating an example method implemented at a network device according to some example embodiments of the present disclosure;

[0037] Figure 7A A flowchart is shown illustrating an example method implemented at a terminal device according to some example embodiments of the present disclosure;

[0038] Figure 7B Another flowchart is shown, illustrating an example method implemented at a network device according to some example embodiments of the present disclosure;

[0039] Figure 8 A simplified block diagram of a device suitable for implementing some example embodiments of this disclosure is shown; and

[0040] Figure 9 A block diagram illustrating an example of a computer-readable medium according to some exemplary embodiments of the present disclosure is shown.

[0041] In all the accompanying drawings, the same or similar reference numerals denote the same or similar elements. Detailed Implementation

[0042] The principles of this disclosure will now be described with reference to some exemplary embodiments. It should be understood that these embodiments are described for illustrative purposes only and to assist those skilled in the art in understanding and implementing this disclosure, and do not imply any limitation on the scope of this disclosure. This disclosure described herein can be implemented in various ways other than those described below.

[0043] In the following description and claims, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains.

[0044] References to "an embodiment," "an embodiment," "an example embodiment," etc., in this disclosure indicate that the described embodiment may include specific features, structures, or characteristics, but not every embodiment necessarily includes such specific features, structures, or characteristics. Furthermore, these phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, whether explicitly described or not, it should be considered that its influence in conjunction with other embodiments on such features, structures, or characteristics is within the knowledge of those skilled in the art.

[0045] It is understood that although the terms “first” and “second” may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of the exemplary embodiments, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.

[0046] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” also include the plural forms. It should also be understood that the terms “comprising,” “having,” and / or “including,” when used herein, specify the presence of stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. As used herein, “at least one of the following: ” and “at least one of ” and similar wording, where the list of two or more elements is connected by “and” or “or,” means at least any one element, or at least any two or more elements, or at least all elements.

[0047] As used in this application, the term "circuit system" may refer to one or more of the following: (a) Pure hardware circuit implementation (such as implementations only in analog and / or digital circuit systems) and (b) A combination of hardware circuitry and software, such as (if applicable): (i) A combination of (multiple) analog and / or digital hardware circuits and software / firmware, and (ii) Any part of the (multiple) hardware processors having software (including (multiple) digital signal processors), software, and (multiple) memories, which work together to enable a device (such as a mobile phone or server) to perform various functions) and (c) Multiple hardware circuits and / or multiple processors, such as multiple microprocessors or a portion thereof, that require software (e.g., firmware) to operate, but which may be absent when no software is required to operate.

[0048] This definition of "circuit system" applies to all uses of the term in this application, including all uses in any claim. As a further example, as used herein, the term "circuit system" also covers the implementation of only hardware circuitry or a processor (or processors) or a portion thereof and its (or their) accompanying software and / or firmware. For example, and where applicable to a particular claim element, the term "circuit system" also covers baseband integrated circuits or processor integrated circuits for mobile devices, or similar integrated circuits in servers, cellular network devices, or other computing or network devices.

[0049] As used herein, the term "communication network" refers to a network that conforms to any suitable communication standard, such as Long Term Evolution (LTE), LTE-A Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), Narrowband Internet of Things (NB-IoT), etc. Furthermore, communication between terminal devices and network devices in a communication network can be performed according to any suitable generation of communication protocol, including but not limited to third-generation (3G), fourth-generation (4G), 4.5G, fifth-generation (5G) communication protocols and / or later communication protocols. Embodiments of this disclosure can be applied to various communication systems. Given the rapid development of communications, there will naturally be future types of communication technologies and systems that embody the future types of this disclosure. This should not be construed as limiting the scope of this disclosure to the systems described above.

[0050] As used herein, the term "network device" refers to a node in a communication network through which terminal devices access the network and receive services. Network devices can refer to base stations (BS) or access points (APs), such as Node B (NodeB or NB), evolved Node B (eNodeB or eNB), NR NB (also known as gNB), Remote Radio Unit (RRU), Radio Header Terminal (RH), Remote Radio Header Terminal (RRH), repeaters, low-power nodes (such as femtoseconds, picoseconds, etc.), depending on the terminology and technology used.

[0051] The term "terminal device" refers to any terminal device capable of wireless communication. As an example and not a limitation, a terminal device may also be referred to as a communication device, user equipment (UE), subscriber station (SS), portable subscriber station, mobile station (MS), or access terminal (AT). Terminal devices can include, but are not limited to, mobile phones, cellular phones, smartphones, Voice over IP (VoIP) phones, wireless local loop phones, tablets, wearable terminal devices, personal digital assistants (PDAs), portable computers, desktop computers, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback devices, in-vehicle wireless terminal devices, wireless endpoints, mobile stations, laptop embedded devices (LEEs), laptop mounted devices (LMEs), USB dongles, smart devices, wireless customer premises equipment (CPEs), Internet of Things (IoT) devices, watches or other wearable devices, head-mounted displays (HMDs), vehicles, drones, medical devices and applications (e.g., remote surgery), industrial devices and applications (e.g., robots and / or other wireless devices operating in industrial and / or automated processing chain environments), consumer electronics devices, devices operating on commercial and / or industrial wireless networks, and so on. In the following description, the terms "terminal equipment", "communication equipment", "terminal", "user equipment" and "UE" are used interchangeably.

[0052] When a User Equipment (UE) moves from one cell to another, a serving cell change needs to be performed at some point. In some cases, serving cell changes are accomplished via explicit Radio Resource Control (RRC) reconfiguration signaling to trigger synchronization of the target cell based on L3 measurement reports. This results in longer latency, greater overhead, and longer downtime compared to beam-level mobility. Therefore, in 3GPP Release 18, a new work item for further New Radio (NR) mobility enhancements, called Layer 1 (L1) / Layer 2 (L2) Triggered Mobility (LTM), was approved to implement serving cell changes via L1 / L2 signaling to reduce latency, overhead, and downtime.

[0053] Rel-18 LTM (L1 / L2 Triggered Mobility) is a mobility procedure in which the network configures up to eight candidate cells for the UE, receives L1-RSRP measurements from the UE regarding the configured candidate cells, and finally sends a cell handover command to the UE using MAC CE to perform a cell handover to one of those cells based on the received L1 measurements. One of the key objectives of LTM is to reduce disruptions caused by L3 handovers from L3 handovers based on L3 measurements and reporting and handover (HO) commands using RRC messages. This reduction in disruptions caused by cell handovers is achieved through various early procedures: early DL synchronization activated by the Early Transport Configuration Indicator (TCI) state; early UL synchronization via the Physical Downlink Control Channel (PDCCH) Ordered Random Access Channel (RACH) or based on the UE's TA estimation; or early Abstract Syntax Tag 1 (ASN.1) decoding and validity verification.

[0054] L3 mobility and its corresponding measurements have been used in many generations and were primarily introduced as cell-level mobility before the introduction of beams and corresponding beam-level mobility (i.e., beam management). L1 / L2 triggered mobility and its corresponding measurements were introduced as a “faster” mobility scheme based on L1 measurements and triggered by Media Access Access (MAC). Therefore, LTM is essentially built on top of beam-level mobility because it relies on L1 measurements. This means that 5G-A does not consider a scheme to unify, merge, or reuse these two mobility schemes, and they can be configured independently.

[0055] It is generally accepted that: (1) L3 measurements are L1 measurement samples filtered by several (5-10) of dedicated filtering rules indicated by the network at L3; (2) L1 and L3 measurements can be based on the exact same reference signal (RS) from the exact same cell; (3) current specifications do not prevent L1 measurements from using different reference signals than L3 measurements. measObjectNR (4) No new measurement gap mode has been added for LTM, but the UE may need more gaps if the measurement objects are different. Since the standard does not consider a unified mobility framework, it is expected that the UE will continue its L3 measurements and corresponding reports after it is configured with LTM. This may cause several problems and, at best, be inefficient.

[0056] In view of the above, some embodiments of this disclosure propose a solution for a shared measurement configuration for L1 / L2 triggering and L3 mobility. Specifically, in some embodiments of this disclosure, a terminal device receives from a network device first configuration information for performing Layer 3 (L3) measurements and reporting; receives from the network device (i) second configuration information and (ii) third configuration information, the second configuration information being for performing Layer 1 (L1) measurements and reporting for L1 / Layer 2 (L2) triggered mobility (LTM), the third configuration information being for configuring the terminal device to perform and report at least one of L1 measurements or L3 measurements; and performs and reports the at least one of the L1 measurements or L3 measurements based on the third configuration information. In this way, the third configuration information can configure the terminal device to jointly perform and report at least one of L1 measurements and L3 measurements.

[0057] In some embodiments of this disclosure, the terminal device receives from the network device first configuration information for performing Layer 3 (L3) measurements and reporting; receives from the network device (i) second configuration information and (ii) third configuration information, the second configuration information being for performing Layer 1 (L1) measurements and reporting for L1 / Layer 2 (L2) triggered mobility (LTM), the third configuration information being for configuring the terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported; and performs and reports the at least one of the L1 measurement or L3 measurement based on the third configuration information. In this way, the third configuration information can configure the terminal device to determine by itself to jointly perform and report at least one of an L1 measurement and an L3 measurement.

[0058] For illustrative purposes, the following will refer to Figures 1-9 The principles and exemplary embodiments of this disclosure are described. However, it should be noted that these embodiments are given so that those skilled in the art can understand the inventive concepts of this disclosure and implement the solutions presented herein, and are not intended to limit the scope of this application in any way.

[0059] Figure 1 An example network environment 100 in which exemplary embodiments of the present disclosure may be implemented is shown. Environment 100 may be part of a communication network, which includes terminal devices and network devices.

[0060] like Figure 1As illustrated in the diagram, communication network 100 may include terminal device 101 (hereinafter also referred to as user equipment (UE) 101). Communication network 100 may also include network device 102, which may be a source gNB providing multiple cells, one of which may be the serving cell currently used to serve terminal device 101 (e.g., cell 102-1). Communication network 100 may also include another network device 103, which may be a target gNB providing multiple candidate cells, one of which may be the target cell to which terminal device 101 is to be handed over (e.g., cell 103-1).

[0061] like Figure 1 As shown, when UE 101 moves between different cells of different gNBs (or DUs) belonging to the same CU, and in short, this scenario is referred to as inter-DU and intra-CU mobility. Figure 1 As shown, serving cell 102-1 belongs to network device 102, and target cell 103-1 belongs to network device 103. Terminal device 101 moves from cell 102-1 to cell 103-1. It should be understood that each gNB can have many cells, and only one cell is shown for illustration purposes. For example, there may be several candidate cells for a target gNB, and only one cell as the target cell is shown for illustrative purposes. It should also be understood that a UE can move between different cells belonging to the same gNB, and this scenario is called intra-DU mobility.

[0062] It should be understood that the number of network devices and terminal devices is given for illustrative purposes only and does not imply any limitation. System 100 may include any suitable number of network devices and / or terminal devices appropriate for implementing embodiments of this disclosure. Although not shown, it should be understood that one or more terminal devices may be located in environment 100.

[0063] Communication in network environment 100 can be implemented according to any suitable communication protocol, including but not limited to third-generation (3G), fourth-generation (4G), fifth-generation (5G) or higher, wireless local area network communication protocols such as IEEE 802.11, and / or any other currently known or future-developed protocols. Furthermore, the communication can utilize any suitable wireless communication technology, including but not limited to: multiple-input multiple-output (MIMO), orthogonal frequency division multiplexing (OFDM), time division multiplexing (TDM), frequency division multiplexing (FDM), code division multiplexing (CDM), Bluetooth, ZigBee, machine-type communication (MTC), enhanced mobile broadband (eMBB), massive machine-type communication (mMTC), ultra-reliable low-latency communication (URLLC), carrier aggregation (CA), dual connectivity (DC), and new radio unlicensed (NR-U) technologies.

[0064] As described in 3GPP TS 38.300, Section 9.2.4 states: In RRC_CONNECTED, the UE measures multiple beams (at least one) of the cell and averages the measurement results (power values) to obtain the cell quality. In doing so, the UE is configured to consider a subset of the detected beams. Filtering occurs at two distinct levels: beam quality is obtained at the physical layer, and then cell quality is obtained from the multiple beams at the RRC layer. The cell quality from the beam measurements is obtained in the same manner for both the serving cell(s) and non-serving cells(s). If the gNB configures the UE to do this, the measurement report can contain the measurement results of X best beams. (Refer to...) Figure 2A Describe the corresponding high-level measurement model.

[0065] like Figure 2A As shown, "K beams" correspond to measurements on SSB or CSI-RS resources configured by the gNB for L3 mobility and detected by the UE at L1. "A" refers to measurements within the physical layer (beam-specific samples). "Layer 1 filtering" refers to the layer 1 filtering of the input measured at point A. The exact filtering depends on the implementation. How the measurement is actually performed in the physical layer through the implementation (input A and layer 1 filtering) is not subject to standard constraints.

[0066] “A 1 "Beam combining / selection" refers to the measurements reported from Layer 1 to Layer 3 after Layer 1 filtering (i.e., beam-specific measurements). "Beam combining / selection" refers to the combining of beam-specific measurements to derive cell quality. The behavior of beam combining / selection is standardized, and the configuration of this module is provided by RRC signaling. The reporting period at B is equal to that at A. 1 One measurement cycle at the location.

[0067] "B" refers to the measurement (i.e., cell quality) obtained from the beam-specific measurements reported to Layer 3 after beam combining / selection. "Layer 3 filtering for cell quality" refers to the filtering performed on the measurements provided at point B. The behavior of the Layer 3 filter is normalized, and the configuration of the Layer 3 filter is provided by RRC signaling. The filtering reporting period at C is equal to one measurement period at B. "C" refers to the measurement after processing in the Layer 3 filter. The reporting rate is the same as the reporting rate at point B. This measurement is used as input to one or more evaluations for reporting criteria.

[0068] The "Reporting Criteria Evaluation" checks at point D whether an actual measurement report is required. This evaluation can be based on more than one measurement stream at reference point C, for example, to allow comparisons between different measurements. This is determined by inputs C and C2. 1 The diagram illustrates this. The UE can at least at point C, C' at each time. 1When reporting new measurement results, reporting criteria are evaluated. These criteria are standardized and configured using RRC signaling (UE measurement). "D" refers to the measurement report information (message) transmitted over the radio interface.

[0069] "L3 Beam Filtering" refers to the filtering performed on the measurements provided at point A1 (i.e., beam-specific measurements). The behavior of the beam filter is normalized, and the configuration of the beam filter is provided by RRC signaling. The filtering reporting period at E is equal to one measurement period at A1. "E" refers to the measurement after processing in the beam filter (i.e., beam-specific measurement). The reporting rate is the same as the reporting rate at point A1. This measurement is used as input for selecting X measurements to be reported. "Beam Selection for Beam Reporting" selects X measurements from the measurements provided at point E. The behavior of beam selection is normalized, and the configuration of this module is provided by RRC signaling. "F" refers to the beam measurement information included in the (transmitted) measurement report on the radio interface.

[0070] Starting with version 18, new L1 / L2 triggered RRM measurements were introduced, which can trigger cell-level mobility based on L1 measurement reports. Table 1 below shows the items for L3 and LTM RRM measurements. Table 1: L3 and LTM RRM Measurements

[0071] L3 mobility will be described below. Figure 2B The basic handover scenario based on L3 mobility is shown, in which the Access and Mobility Management Function (AMF) and User Plane Function (UPF) remain unchanged for handovers within the AMF / UPF.

[0072] In RRC_CONNECTED, NW can use RRM measurements, for example, for mobility management or for configuring one or more SCells for carrier aggregation (CA), or possibly for PSCells for dual connectivity (DC). In L3 mobility, NW in RRCReconfiguration Use in messages measConfig The IE is used to configure the UE for measurement, and the UE periodically reports measurement results in RRC report messages and / or based on configured reporting events. measConfig In measObject Configure which objects (carriers) the UE should measure, and reportConfig Instruct the UE: How the UE reports any possible measurements to the network, such as rules and quantities.

[0073] The network (NW) can configure the UE to periodically and / or report measurement results based on configured events (event-based events). Measurement reporting events are configured by the network and can be triggered, for example, based on the absolute values ​​of measured received signals from (multiple) serving cells or neighboring cells and the relative offsets between the measured values. Some examples of measurement reporting events are listed below [TS38.331, Clause 5.5.4]: Event A1: The serving cell becomes better than the threshold; Event A2: The serving cell becomes worse than the threshold; Event A3: Neighboring cells become better than SpCell after considering offset; Event A4: Neighboring cells become better than the threshold; Event A5: SpCell becomes worse than threshold 1, and neighboring cells become better than threshold 2; Event A6: Neighboring cells become better than SCell after considering offset; Event B1: Inter-RAT neighboring cells become better than the threshold; and Event B2: PCell becomes worse than threshold 1, and inter-RAT neighboring cells become better than threshold 2.

[0074] Regardless of the event that triggers the report, the measurement report includes all available measurements on the serving cell(s), and also includes the carrier that triggered the report, as well as the measured cell on other carriers configured in the measurement report configuration. In addition to using the measurements for mobility purposes, the gNB uses the reported measurement results to configure / add (multiple) SCells. For example, the gNB can use A1, A4, or other measurement report event triggers to configure a selected SCell to be added to the reported cells. Once an SCell is added to the serving cell set (PCell + one or more SCells), it becomes a serving cell, and the UE performs in-frequency measurements on the SCell (as on all serving cells). Most commonly, the UE can perform this process without requiring measurement gaps (but this ultimately depends on network configuration). Figure 2B The basic handover scenario is shown, in which the Access and Mobility Management Function (AMF) and User Plane Function (UPF) remain unchanged for handovers within the AMF / UPF.

[0075] Additionally, the L3 measurement configuration specified by 3GPP [TS 38.331] provides information as shown below.

[0076] The LTM process will be described below. Figure 2CThe signaling procedure for the LTM process is illustrated. LTM is a cell handover procedure in which the network switches the UE's serving cell (PCell or PSCell) by sending an LTM cell handover command. LTM measurement and reporting configuration uses RRC messages, while L1 measurement reports and LTM handover commands are exchanged using MAC signaling via MAC CE. Therefore, RRC signaling is not used as one of the current methods for L3-based handover for making changes between cells. LTM cell handover decisions are based on measurements (e.g., L1 measurements) performed and reported by the UE (e.g., L1 measurement reports). Prior to cell handover, the network may optionally activate one or more TCI states for one or more candidate cells. Once a candidate cell TCI state is activated, the UE can begin tracking time / frequency synchronization using reference signals associated with the activated TCI(states)(s). The UE may also perform early DL synchronization and timing advance (TA) acquisition prior to cell handover if requested by the network.

[0077] like Figure 2C As shown, in step 1, the UE sends a measurement report message to the gNB. The gNB decides to configure LTM and initiates LTM preparation. In step 2, the gNB transmits to the UE a list of LTM candidate configurations. RRCReconfiguration Message. In step 3, the UE stores the LTM candidate configuration and transmits it to the gNB. RRCReconfigurationComplete information.

[0078] In step 4a, the UE performs DL synchronization with (multiple) candidate cells before receiving the cell handover command. In step 4b, before receiving the cell handover command specified in clause 9.2.6 [38.300], the UE performs early TA acquisition for (multiple) candidate cells as requested by the network. This is accomplished via CFRA triggered by a PDCCH instruction from the source cell, after which the UE sends a preamble toward the indicated candidate cell. To minimize data interruption to the source cell due to CFRA toward (multiple) candidate cells, the UE does not receive a random access response from the network for TA value acquisition purposes, but instead indicates the TA value of the candidate cell in the cell handover command. The UE does not maintain a TA timer for the candidate cells and relies on the network implementation to guarantee TA validity.

[0079] In step 5, the UE performs L1 measurements on (multiple) configured candidate cells and transmits an L1 measurement report to the gNB. L1 measurements can be performed as long as RRC reconfiguration (step 2) is applicable. Then, in step 6, the gNB decides to perform a cell handover to the target cell and transmits a MAC CE that triggers the handover, including a candidate configuration index for the target cell. The UE hands over to the target cell and applies the configuration indicated by the candidate configuration index. In step 7, if the UE does not have a valid TA for the target cell as specified in clause 6.1.3.75 of TS38.321, the UE performs a random access procedure toward the target cell. Then, in step 8, the UE transmits a report to the target cell... RRCReconfigurationComplete The LTM cell handover process is completed using a message. If the UE has already performed the RA procedure in step 7, the UE considers the LTM cell handover to be successfully completed when the random access procedure is successfully completed. For LTM without RACH, the UE considers the LTM cell handover to be successfully completed when it determines that the network has successfully received its first UL data.

[0080] A set of reporting configurations can be provided within the corresponding configuration for each cell, as the reporting configuration can include details of the cell-specific uplink resources to be sent, especially when the report is configured to be sent on an uplink control channel with pre-configured resources. The reporting configuration also includes a reference to a set of measurement RSs located in a shared LTM configuration and considered for measurement. Details of the report content include the number (L) of candidate cells reported from measurements performed by the UE and the number (M) of SSBs for each candidate cell. In each LTM report, the UE can send M x L ​​measurements (L1-RSRPs), where the supported values ​​for each M and L can be {1, 2, 3, 4}. The report format follows the beam management reporting format, where the largest L1-RSRP is reported as an absolute value using 7 bits, while other L1-RSRPs are reported as differential values ​​using 4 bits [TS 38.212].

[0081] In version 18, LTM did not specify reporting events; therefore, L1-RSRP reports were sent continuously. However, version 19 is specifying measurement reporting events. Reporting events can be considered according to the following latest agreement: LTM2: The serving cell's beam becomes worse than the absolute threshold; LTM3: The beam of the candidate cell becomes better than the beam of the serving cell by an offset amount; LTM4: The beamforming of candidate cells becomes better than the absolute threshold; and LTM5: The serving cell’s beam becomes worse than absolute threshold 1 and the candidate cell’s beam becomes better than another absolute threshold 2.

[0082] The LTM measurement configuration specified by 3GPP [TS 38.331] provides the following information:

[0083] 3GPP RAN WG2 meeting #121 discussed the following options related to potential race conditions between MAC cell handover and L3 HO: (1) the UE can execute any L3 handover command sent by the network while an LTM candidate cell is configured; and (2) the network can prevent the UE from receiving LTM MAC CE and L3 HO commands in the same Media Access Control Protocol Data Unit (MAC PDU). RRCReconfiguration This addresses any issues arising from messages (e.g., L3 HO commands). RAN3 is primarily used to resolve this issue. There is no impact on UE behavior.

[0084] Furthermore, R2-2304102 documents the conclusion: a discussion of the methodology for RAN3 LS during inter-DU LTM execution. This T-doc recommends information exchange between the source gNB, target gNB, and CU (for cases where both are identical) to align cell handover and potential L3 HO execution. This document does not recommend any alignment in configuration, and the alignment for mobility-triggered events only applies to cases within the CU. Additionally, there are some recommendations to pre-synchronize 5G CHO, LTM, and target cells to a single candidate cell list, but these do not address shared measurement configurations.

[0085] As discussed above, L3 mobility and its corresponding measurements have been used in many generations and were primarily introduced as cell-level mobility before the introduction of beam and corresponding beam-level mobility (i.e., beam management). L1 / L2 triggered mobility and its corresponding measurements were introduced as a “faster” mobility scheme based on L1 measurements and triggered by MAC. Therefore, LTM is essentially built on top of beam-level mobility because it relies on L1 measurements. This means that 5G-A does not consider a scheme to unify / merge / reuse these two mobility schemes, and they can be configured independently. Since the standard does not consider a unified mobility framework, it is expected that UEs will continue to report their L3 measurements and corresponding measurements after they are configured with LTM. This can lead to several problems and, at best, inefficiency.

[0086] Figure 2D The sequence of higher-level messages is shown, in which the UE is configured and performs LTM and L3 mobility measurements and reports.

[0087] For example, such as Figure 2DAs shown, the problem that arises can be that the UE performs measurements (as shown in steps 6a and 6b) and transmits L3 and L1 reports (as shown in steps 7a and 7b). This may require multiple measurement gaps, as shown in steps 6c and 6d. LTM measurements can be performed at different frequency layers and / or require different gap patterns (more frequent / less frequent, shorter / longer lengths). For example, L1 and L3 measurements can use different receive beams, which may require different numbers of repetitions to obtain a signal with target beamforming.

[0088] Furthermore, for example, if both LTM and L3 measurement reporting events are met simultaneously, the problem might be that there could be conflicting reporting events. Even if the reports do not conflict, the same information might be transmitted on two different layers, leading to inefficiency.

[0089] Furthermore, for example, the issue could be that the specification does not define how handover (HO) decisions can be made based on L1 versus L3 measurements, for example, as shown in steps 10a and 10b. The specification does not explicitly prohibit simultaneous handover commands (as shown in step 11a) with MAC control element (CE) cell handover (as shown in step 11b); therefore, race conditions may occur. While this can certainly be left to the NW implementation to avoid, this introduces unknown behavior regarding the expected mobility process and makes it difficult to predict the scenarios in which it can be helpful.

[0090] In light of the above, the following will refer to Figure 3 Example signaling procedures 300 according to some embodiments of this disclosure are described. For discussion purposes, reference will be made to... Figure 1 The communication process is described in section 300. It should be understood that, although already seen... Figure 1 The network environment 100 describes the communication process 300, but this communication process 300 can also be applied to other similar communication scenarios. It should be understood that the terminal device 301 is... Figure 1 Example of terminal device 101, while network device 302 is Figure 1 Example of network device 102 (i.e., source gNB).

[0091] like Figure 3As shown, network device 302 transmits (305) first configuration information to terminal device 301 for performing Layer 3 (L3) measurements and reporting, and terminal device 301 receives (310) the first configuration information. Then, network device 302 further transmits (315) (i) second configuration information and (ii) third configuration information to terminal device 301, the second configuration information being for performing L1 measurements and reporting for L1 / L2 triggered mobility (LTM), and the third configuration information being for configuring the terminal device to perform and report at least one of L1 or L3 measurements. Terminal device 301 receives (320) the second and third configuration information. Terminal device 301 performs and reports (325) the at least one of the L1 or L3 measurements based on the third configuration information.

[0092] In procedure 300, when the source gNB decides to configure the UE for LTM measurement and reporting and how / whether to continue L3 measurement and reporting, it is recommended to combine the LTM (i.e., L1 / L2) measurement configuration with the L3 measurement configuration. The serving cell configures the L1 / L2 measurement and measurement reporting to the UE, along with information on how to jointly perform and report L1 and / or L3 measurements. During this procedure, how to jointly perform L1 and / or L3 measurements is configured by the network equipment.

[0093] In some embodiments, the second and third configuration information are included in a single combined configuration, which configures the terminal device for L1 / L2 measurements and reporting, as well as information on how to jointly perform and report L1 and / or L3 measurements. In this way, which of the L1 and L3 measurements will be jointly performed is entirely configured by the network device, and, for example, the information on how to jointly perform L1 and / or L3 measurements may include the network device's (NW) instructions on which measurements to perform, such as L1 Reference Signal Received Power (RSRP) or L3 RSRP / Reference Signal Received Quality (RSRQ) / Signal-to-Interference-plus-Noise Ratio (SINR) / Signal-to-Noise Ratio (SNR), or both L1 and L3 measurements.

[0094] The following section describes the contents of the measurement object to be measured, configured by a single combination configuration.

[0095] In some embodiments, the third configuration information includes a common superset of the measurement objects for L1 and L3 measurements, at least one reference signal to be measured, or at least one synchronization signal block measurement timing configuration (SMTC) window. For example, information about how to jointly perform and report L1 and / or L3 measurements includes a common superset of the measurement objects (cell or carrier frequency), reference signals, SMTC windows, etc.

[0096] In some embodiments, the third configuration information configures the terminal device to suspend at least one of the L3 measurements. If the third configuration information configures the terminal device to suspend at least one of the L3 measurements, the terminal device can be configured by the third configuration information to suspend L3 measurements for a configured measurement object included in the third configuration information and perform L1 measurements according to the second configuration information. For example, information about how to jointly perform and report L1 and / or L3 measurements can configure the UE to suspend all L3 measurements and perform only L1 measurements according to the LTM configuration. For example, the measurement object indicates that the measurement is only for L1, and this embodiment can be explicit or implicit due to the lack of L3 configuration (such as filtering configuration) or cell quality indication.

[0097] If the third configuration information configures the terminal device to suspend at least one of the L3 measurements, the terminal device can also be configured by the third configuration information to suspend L3 measurements based on the measurement objects configured for L1 measurements, and continue L3 measurements for the remaining measurement objects. For example, the network can configure the UE to suspend only L3 measurements based on the same cell or the same carrier frequency, but continue L3 measurements for the remaining configured measurement objects.

[0098] In some embodiments, the third configuration information configures the terminal device to continue at least one of the L3 measurements. In these embodiments, the terminal device can be configured via the third configuration information to continue L3 measurements for configured measurement objects included in the third configuration information, and to perform L1 measurements according to the second configuration information. For example, the NW can configure the UE to continue all L3 and L1 measurements.

[0099] In some embodiments, the third configuration information includes configured conditions for switching from L3 measurements to L1 measurements. In these embodiments, the terminal device can be configured via the third configuration information to continue L3 measurements for configured measurement objects included in the third configuration information, and to switch to L1 measurements based on the configured conditions. In this way, the UE can be configured to continue all L3 measurements and then switch from L3 measurements to L1 measurements if the configured conditions are met. For example, the NW's indication of which measurement to perform or report can be provided along with certain conditions for switching to L1 measurements.

[0100] The following will be referenced Figure 4 This section describes an example signaling process 400 according to some embodiments of the present disclosure. For discussion purposes, reference will be made to... Figure 1 The communication process is described in section 400. It should be understood that, although already seen... Figure 1 The network environment 100 describes the communication process 400, but this communication process 400 can also be applied to other similar communication scenarios. It should be understood that the terminal device 401 is... Figure 1Example of terminal device 101, while network device 402 is... Figure 1 Example of network device 102 (i.e., source gNB).

[0101] like Figure 4 As shown, network device 402 transmits (405) first configuration information to terminal device 401 for performing Layer 3 (L3) measurements and reporting, and terminal device 401 receives (410) the first configuration information. Then, network device 402 further transmits (415) (i) second configuration information and (ii) third configuration information to terminal device 401, the second configuration information being for performing L1 measurements and reporting for L1 / L2 triggered mobility (LTM), and the third configuration information being for configuring the terminal device to determine at least one of the L1 or L3 measurements to be performed and reported. Terminal device 401 receives (420) the second and third configuration information. Terminal device 401 performs and reports (425) the at least one of the L1 or L3 measurements based on the third configuration information.

[0102] In procedure 400, when the source gNB decides to configure the UE for LTM measurement and reporting and how / whether to continue L3 measurement and reporting, it is recommended to combine the LTM (i.e., L1 / L2) measurement configuration with the L3 measurement configuration. The serving cell configures the L1 / L2 measurement and measurement reporting, as well as information on how to jointly perform and report L1 and / or L3 measurements, to the UE. During this process, the terminal device determines how to jointly perform L1 and / or L3 measurements based on the configuration information from the network device.

[0103] In some embodiments, the second and third configuration information are included in a single combined configuration, which configures L1 / L2 measurements and reporting, as well as information on how to jointly perform and report L1 and / or L3 measurements, to the terminal device. In this way, the terminal device 401 itself determines which L1 and L3 measurements to jointly perform based on the third configuration information from the network device 402.

[0104] The following text describes third configuration information used to configure a terminal device to determine the measurement objects it is measuring.

[0105] In some embodiments, the third configuration information includes configured conditions for performing at least one of L1 or L3 measurements. These configured conditions include cell detection, a reference signal received power threshold, a reference signal received quality threshold, or the priority of the terminal device. The priority of the terminal device is based on the preferred carrier frequency of the serving cell of the terminal device. Furthermore, the preferred carrier frequency is based on the power consumption of the terminal device; or depends on the insertion loss of the operating frequency. Based on the configuration information, the terminal device can determine whether to suspend or continue at least one of the L3 measurements. For example, the NW can configure the UE to determine whether to continue all or some of the L3 measurements after the UE has received L1 measurement configuration for LTM. This determination can be based on, for example, cell detection, RSRP / RSRQ thresholds, or other conditions, or the UE can be configured to indicate whether it has stopped L3 measurements.

[0106] In some embodiments, the third configuration information includes a reporting configuration, which the terminal device can use to determine whether to perform at least one of the L1 or L3 measurements. When both L1 and L3 measurements are reported simultaneously, the L3 measurement is used for cell detection or cell measurement, and the L1 measurement is used for a specific beam of the cell, and the L1 and L3 measurements overlap. For example, based on the reporting configuration of the third configuration information, the measurement to be performed, L1 or L3, or both, is determined on the UE side. The reporting configuration can indicate whether to report L1 or L3 measurements, or both. The UE begins performing L1, L3, or both measurements based on the presence of the reporting configuration indicating either one. A situation where the UE needs to report both L1 and L3 measurements simultaneously may occur when the L3 measurement is used for cell detection or coarse cell measurement, while the L1 measurement is used for a specific beam of the cell, and the two measurements overlap.

[0107] In some embodiments, the measurement to be performed, L1 or L3 or both, is determined on the UE side based on the NW measurement and reporting configuration and an indication that the UE is allowed to select L1 or L3 or both based on its own implementation. In this way, the terminal device can determine to perform at least one of L1 measurement or L3 measurement based on the terminal device's implementation.

[0108] In some embodiments, the UE is configured to perform L1 measurements and / or L1 reporting for a cell, and it is not necessary to evaluate L3 measurement reporting events for the same cell. In one example, the L1 measurement may be an LTM L1 measurement. In another example, the L1 measurement may be a CSI-related measurement; in this case, the UE needs to evaluate L3 measurement reporting events for the cell. In an alternative example, the L1 measurement may be inter-cell beam management, and in this case, the UE needs to perform L3 event evaluation for the cell configured with inter-cell beam management. Therefore, when the terminal device is configured to perform L1 measurements or reporting for a cell, the terminal device may not perform L3 measurement reporting event evaluation for the same cell. When the L1 measurement includes CSI-related measurements, the terminal device may evaluate L3 measurement reporting events for the cell where at least one of the L1 measurements or L1 reports is performed. When the L1 measurement includes inter-cell beam management, the terminal device may perform L3 measurement reporting event evaluation for the cell configured with inter-cell beam management.

[0109] For signaling procedures 300 and 400, terminal device 301 can also receive information from network device 302 regarding measurement gaps for L1 and L3 measurements. For example, the NW provides measurement gaps when it expects the UE to perform measurements, and the measurements are based on configurations / conditions configured in the third configuration information.

[0110] The following describes the measurements to be reported, which are included in a single combined configuration. In this way, it is possible to configure the reporting of only L1 measurements, or only L3 measurements, or both, in a third configuration information, which in other words is information about how L1 and / or L3 measurements can be performed and reported jointly.

[0111] In some embodiments, the third configuration information also includes an indication of whether L1 or L3 measurements need to be reported. For example, this is indicated in the reporting configuration of the third configuration information. The reporting configuration uses flags to indicate whether L1 or L3 measurements should be reported.

[0112] In some embodiments, network devices may be provided with instructions, along with certain conditions, regarding which measurement to perform or report. In this way, a measurement can be reported if certain conditions are met.

[0113] In some embodiments, the measurement to be reported is determined by a measurement configured in the measurement object. For example, if the reporting configuration is linked to a measurement object that has an L3 measurement, the report will send the L3 measurement.

[0114] In some embodiments, terminal device 301 may perform an evaluation of measurement reporting events for at least one of the performed L1 or L3 measurements. For example, the performed measurements configured as described above may also be evaluated for measurement reporting events. Terminal device 301 may then report L1 measurements that satisfy the measurement reporting events for L1 measurements; and report L3 measurements that satisfy the measurement reporting events for L3 measurements. In this way, measurements that satisfy the configured measurement reporting events can be reported.

[0115] In some embodiments, when performing L1 and L3 measurements and satisfying a first measurement report event for L1 measurement and a second measurement report event for L3 measurement, the third configuration information configures the terminal device to report at least one of the L1 and L3 measurements.

[0116] In one embodiment, if L1 and L3 measurements are performed and a first measurement report event for L1 measurement and a second measurement report event for L3 measurement are satisfied, the third configuration information configures the terminal device to report both L1 and L3 measurements. In this way, it can be configured to report both L1 and L3 measurements.

[0117] In one embodiment, when performing L1 and L3 measurements and satisfying a first measurement report event for the L1 measurement and a second measurement report event for the L3 measurement, third configuration information configures the terminal device to report one of the L1 and L3 measurements that meets configured conditions, and the configured conditions include absolute or relative thresholds to be met for reporting. In this way, the configuration can be based on conditions that allow only one report to be transmitted, such as absolute or relative thresholds to be met at each report.

[0118] In one embodiment, when performing L1 and L3 measurements and satisfying a first measurement report event for L1 measurements and a second measurement report event for L3 measurements, third configuration information configures the terminal device to report one of the L1 and L3 measurements based on a configured preference, wherein the configured preference is used to prioritize measurements for either Media Access Control (MAC)-based cell handover or Radio Resource Control (RRC)-based handover. For example, this configuration could be based on preference to transmit only one report. For instance, if a suitable new cell is found based on an L1-RSRP MAC report, higher priority is given to initiate a fast cell handover, or if a better cell under a different gNB is identified, higher priority is given to initiate an RRC HO.

[0119] In one embodiment, when performing L1 and L3 measurements and satisfying a first measurement report event for L1 measurements and a second measurement report event for L3 measurements, third configuration information configures a second L3 measurement report event that differs from the first L3 measurement report event in the first configuration information used for performing L3 measurements and reporting. For example, this configuration may provide a new L3 measurement report event compared to a measurement report received in the first configuration information.

[0120] In one embodiment, if L1 and L3 measurements are performed and a first measurement report event for the L1 measurement and a second measurement report event for the L3 measurement are satisfied, third configuration information configures a measurement report event based on a joint evaluation of the L1 and L3 measurements. For example, there may be a new measurement report event based on a joint evaluation of the L1 and L3 measurements.

[0121] In one embodiment, when performing L1 and L3 measurements and satisfying a first measurement report event for the L1 measurement and a second measurement report event for the L3 measurement, the configuration may leave the decision of which report to transmit to the UE. The NW may provide components for the UE to make this decision.

[0122] In some embodiments, when L3 measurement and reporting are not disabled when LTM measurement and reporting are configured, NW may also provide a component for the UE to evaluate L1 and L3 reports and select one report if both L1 and L3 report events are met, in order to avoid potential conflicts in decision-making based on each report at DU or CU.

[0123] For signaling procedures 300 and 400, network device 302 may also determine whether to trigger a cell handover based on Media Access Control (MAC) or a handover based on Radio Resource Control (RRC) based on at least one of the received L1 or L3 measurements.

[0124] For example, if the terminal device adds an indication that the other of the L1 and L3 measurements is also reported when reporting one of the L1 and L3 measurements, network device 302 can determine whether to trigger a MAC-based cell handover or an RRC-based handover based on the network device's implementation. In this way, if the serving gNB has already received both L1 and L3 reports, the serving gNB assesses whether to initiate an L1 cell handover or an L3 RRC handover. For example, the UE can add an indication that the L3 / L1 report is also transmitted in each L1 / L3 report, and then the NW's internal actions can be left to the NW implementation.

[0125] Furthermore, for example, network device 302 may transmit at least one of the received L1 or L3 measurements to another network device used to determine whether a MAC-based or RRC-based handover has been triggered. In this way, it specifies which NW entity is responsible for mobility decisions. The receiving entity—MAC or RRC—may forward the report to another receiving entity for joint decision-making.

[0126] Furthermore, for example, network device 302 includes an RRC layer and a MAC layer; when transmitting the second configuration information to the terminal device, the RRC layer instructs the MAC layer: if or when an L1 measurement is received from the terminal device, the L1 measurement should be evaluated at the MAC layer or the received L1 measurement should be transmitted to the RRC layer for evaluation. For example, when transmitting L1 measurement configuration to the UE, the RRC layer may, as needed, instruct the MAC layer whether / when the L1 measurement received from the UE should be evaluated at the MAC layer or forwarded to the RRC layer for evaluation.

[0127] Figure 5 An example signaling procedure 500 with a shared measurement configuration having L1 / L2 triggering and L3 mobility according to some embodiments of this application is shown. It should be understood that, although already referred to... Figure 1 The network environment 100 describes the communication process 500, but this communication process 500 can also be applied to other similar communication scenarios. It should be understood that UE 501 is... Figure 1 Example of terminal device 101, while source gNB 502 is Figure 1 The example is network device 102 (i.e., the source gNB), and the target gNB 503 is... Figure 1 Example of network device 103 (i.e., target gNB).

[0128] like Figure 5 As shown, at 504, UE 501 is in the RRC_CONNECTED state. At 506, the UE is configured for L3 mobility measurement (RRM). The UE periodically and / or when a reporting event is met, transmits an RRC message with a measurement report to its serving cell. Based on this report, the serving cell decides to prepare one or more candidate target cells for (additional) L1 / L2 measurement and reporting. At 508, the serving cell decides to configure the UE for L1 / L2 mobility. At 510, the serving cell prepares one or more candidate target cells for LTM. At 512, the serving cell configures the LTM configuration for the UE, as well as the reconfiguration of L3 and L1 measurements. The configuration at 512 may include one or more parameters or information elements, such as the measurement object to be measured and the measurement results to be reported.

[0129] Regarding the object to be measured, in some embodiments, the NW can configure the UE as follows: (a) Pause all L3 measurements and perform only L1 measurements according to the LTM configuration; (b) Only suspend L3 measurements based on the same cell or the same carrier frequency, and continue L3 measurements for the remaining configured measurement objects; (c) Continue all L3 and L1 measurements; (d) Determine whether all or some of the L3 measurements should continue after the UE has received the L1 measurement configuration for LTM, and for example, the determination may be based on cell detection, RSRP / RSRQ thresholds or other conditions, and the UE may be configured to indicate whether it has stopped L3 measurements.

[0130] In some embodiments, step 506 may provide UE configuration regarding how / whether to perform L3 measurements simultaneously when the UE is also configured with LTM. In this case, step 512 may include independent LTM measurements as a subset. For example, the reconfiguration information at step 512 may also include configured conditions regarding how or whether to perform L3 measurements when the UE is also configured with LTM.

[0131] For the multiple measurement results to be reported, in some embodiments, the measurement performed according to the measurement object configured in embodiments (a) to (d) above will be evaluated for a measurement reporting event. In other words, in step 516A, the measurement will be performed according to the joint configuration provided at step 512, and then in step 516B, the measurement result will be evaluated for a measurement reporting event according to the joint configuration provided at step 512. In these embodiments, if the performed L1 / L2 or L3 measurement is evaluated to satisfy the configured measurement reporting event, the corresponding measurement result will be reported to the network.

[0132] For example, the measurement report events configured by NW for L3 measurements can be selected from the following: Event A1: The serving cell becomes better than the threshold; Event A2: The serving cell becomes worse than the threshold; Event A3: Neighboring cells become better than SpCell after considering offset; Event A4: Neighboring cells become better than the threshold; Event A5: SpCell is worse than threshold 1, and neighboring cells are better than threshold 2; Event A6: Neighboring cells become better than SCell after considering offset; Event B1: Inter-RAT neighboring cells become better than the threshold; and Event B2: PCell becomes worse than threshold 1, and inter-RAT neighboring cells become better than threshold 2.

[0133] For example, the measurement reporting events configured by NW for L1 or L2 measurements can be selected from the following: LTM2: The serving cell's beam becomes worse than the absolute threshold; LTM3: The beam of the candidate cell becomes better than the beam of the serving cell by an offset amount; LTM4: The beamforming of candidate cells becomes better than the absolute threshold; and LTM5: The serving cell’s beam becomes worse than absolute threshold 1 and the candidate cell’s beam becomes better than another absolute threshold 2.

[0134] In some embodiments, the UE reporting behavior is configured for the case where the UE is configured to perform both L1 and L3 measurements—regardless of whether the measurements are on the same cell or carrier—and the UE simultaneously satisfies both L1 and L3 measurement reporting events. For example, the UE reporting behavior can be configured as follows: (1) This configuration can report two measurements; (2) This configuration can be based on conditions that only transmit one report, such as an absolute or relative threshold that is met at each report; (3) This configuration can be based on preference and transmit only one report. For example, if a suitable new cell is found based on the L1-RSRP MAC report, it is given higher priority to initiate a fast cell handover, or if a better cell under a different gNB is identified, it is given higher priority to initiate an RRC HO; (4) This configuration can provide new L3 measurement report events compared to the measurement report event received in step 506; (5) There may be new measurement reporting events based on joint assessments of L1 and L3 measurements; and (6) This configuration leaves the decision of which report to transmit to the UE, and the NW can provide components for the UE to make the decision, such as providing configured conditions.

[0135] In some embodiments, UE configuration regarding how / whether / when to report L3 measurements may be provided in step 506 if the UE also has LTM configured. In this case, the configuration information in step 512 may include isolated LTM measurements as a subset. For example, the configuration information at step 512 may also include configured conditions regarding how / whether / when to report L3 measurements if the UE also has LTM configured.

[0136] like Figure 5 As shown in Figure 514, the UE confirms... RRCReconfiguration The reception. For example... Figure 5As shown in Figure 516A, based on the rules configured in step 512 regarding the measurement object to be measured, i.e., based on the joint configuration, the UE performs L1 / L2 and / or L3 measurements. Figure 5 As shown in Figure 516B, the UE also evaluates measurement results for L1 / L2 and / or L3 measurement reporting events based on a joint configuration. Figure 5 As shown in Figure 516C, the serving cell provides a measurement gap based on the measurements that the UE expects to perform after receiving the configuration information in step 512.

[0137] like Figure 5 As shown, at 518, the UE transmits L1, L3, or both of these measurement reports according to the configured reporting events (e.g., whether the configured reporting events are met), and whenever both L1 and L3 reporting events are triggered simultaneously, the UE follows the rules configured at step 512 regarding the measurement results to be reported.

[0138] At 520, based on the received measurement reports(s), the serving gNB can decide to trigger either a MAC-based cell handover or an RRC-based HO (House of Interest). In other words, if the serving gNB has received both L1 and L3 reports (depending on the reporting event (i.e., the reporting event that needs to be met) and the configured conditions (i.e., the measurement results to be reported configured at step 512)), the serving gNB evaluates whether to initiate an L1 cell handover or an L3 RRC handover.

[0139] In one embodiment, the UE can add an indication that the L3 / L1 report is also transmitted in each L1 / L3 report, and then the NW internal action can be left to the NW implementation.

[0140] In one embodiment, a NW entity is designated to be responsible for mobility decisions. The receiving entity—MAC or RRC—can forward reports to another receiving entity for joint decision-making.

[0141] In one embodiment, when transmitting L1 measurement configuration to the UE, the RRC may, as needed, indicate to the MAC whether / when to evaluate the L1 measurement received from the UE at the MAC or to forward it to the RRC for evaluation.

[0142] At 522, based on the result from step 520, the serving gNB transmits an RRC HO command or MAC-CE cell handover to the UE. At 524, the UE initiates a RACH procedure for handover / cell handover. At 526, the UE completes the procedure.

[0143] Figure 6A A flowchart illustrating an example method 600A implemented at a terminal device (e.g., terminal device 101) according to some embodiments of the present disclosure is shown. Reference will be made to this flowchart for discussion purposes. Figure 1Method 600A is described from the perspective of terminal device 101.

[0144] like Figure 6A As shown, in block 610A, the terminal device receives first configuration information from the network device for performing Layer 3 (L3) measurements and reporting. In block 620A, the terminal device receives (i) second configuration information and (ii) third configuration information from the network device, the second configuration information being for performing Layer 1 (L1) measurements and reporting for L1 / Layer 2 (L2) triggered mobility (LTM), and the third configuration information being for configuring the terminal device to perform and report at least one of L1 measurements or L3 measurements. In block 630A, the terminal device performs and reports said at least one of L1 measurements or L3 measurements based on the third configuration information.

[0145] In some embodiments, the third configuration information includes at least one of the following: a common superset of the measurement objects for L1 and L3 measurements, at least one reference signal to be measured, or at least one synchronization signal block measurement timing configuration (SMTC) window.

[0146] In some embodiments, the third configuration information configures the terminal device to suspend at least one of the L3 measurements. The terminal device suspends L3 measurements for the configured measurement objects included in the third configuration information and performs L1 measurements according to the second configuration information. The terminal device suspends L3 measurements based on the measurement objects configured for L1 measurements and continues L3 measurements for the remaining measurement objects.

[0147] In some embodiments, the third configuration information configures the terminal device to continue at least one of the L3 measurements. The terminal device continues L3 measurements for the configured measurement objects included in the third configuration information and performs L1 measurements according to the second configuration information.

[0148] In some embodiments, the third configuration information includes configured conditions for switching from L3 measurement to L1 measurement. The terminal device continues L3 measurement for the configured measurement objects included in the third configuration information and switches to L1 measurement based on the configured conditions.

[0149] In some embodiments, the terminal device also receives information from the network device regarding the measurement gap between L1 and L3 measurements. In some embodiments, the second configuration information and the third configuration information are included in a single combined configuration.

[0150] In some embodiments, the terminal device further evaluates measurement reporting events for at least one of the performed L1 or L3 measurements. The terminal device reports L1 measurements that satisfy measurement reporting events for L1 measurements and L3 measurements that satisfy measurement reporting events for L3 measurements.

[0151] In some embodiments, when performing L1 and L3 measurements and satisfying a first measurement report event for L1 measurement and a second measurement report event for L3 measurement, the third configuration information configures the terminal device to report at least one of the L1 and L3 measurements.

[0152] In some embodiments, the third configuration information configures the terminal device to report both L1 and L3 measurements; the third configuration information configures the terminal device to report one of the L1 and L3 measurements that meets configured conditions; the configured conditions include absolute or relative thresholds to be met for reporting; the third configuration information configures the terminal device to report one of the L1 and L3 measurements based on configured preferences for prioritizing measurements for handover to a Media Access Control (MAC)-based cell or Radio Resource Control (RRC)-based cell; the third configuration information configures a second L3 measurement reporting event that is different from the first L3 measurement reporting event in the first configuration information used to perform L3 measurement and reporting; or the third configuration information configures a measurement reporting event based on a joint evaluation of L1 and L3 measurements.

[0153] In some embodiments, the third configuration information also includes an indication of whether L1 or L3 measurements need to be reported.

[0154] Figure 6B A flowchart illustrating an example method 600B implemented at a network device (e.g., network device 102) according to some embodiments of the present disclosure is shown. Reference will be made to this flowchart for discussion purposes. Figure 1 Method 600B is described from the perspective of network device 102.

[0155] like Figure 6B As shown, in block 610B, the network device transmits first configuration information to the terminal device for performing Layer 3 (L3) measurements and reporting. In block 620B, the network device transmits second configuration information to the terminal device regarding Layer 1 (L1) measurements and reporting of L1 / Layer 2 (L2) triggered mobility (LTM), and third configuration information for configuring the terminal device to perform and report at least one of L1 or L3 measurements.

[0156] In some embodiments, the third configuration information includes at least one of the following: a common superset of the measurement objects for L1 and L3 measurements, at least one reference signal to be measured, or at least one synchronization signal block measurement timing configuration (SMTC) window.

[0157] In some embodiments, the third configuration information configures the terminal device to pause at least one of the L3 measurements. In some embodiments, the third configuration information configures the terminal device to continue at least one of the L3 measurements. In some embodiments, the third configuration information includes configured conditions for switching to L1 measurements.

[0158] In some embodiments, the network device also transmits information about a measurement gap to the terminal device, which the terminal device will use to perform at least one of L1 and L3 measurements. In some embodiments, the network device also receives at least one of the performed L1 or L3 measurements from the terminal device.

[0159] In some embodiments, the third configuration information configures the terminal device to report L1 measurements and L3 measurements; the third configuration information configures the terminal device to report one of L1 measurements and L3 measurements that meet configured conditions; the configured conditions include absolute or relative thresholds to be met for reporting; the third configuration information configures the terminal device to report one of L1 measurements and L3 measurements based on configured preferences for prioritizing measurements for handover to a cell based on Media Access Control (MAC) or a handover based on Radio Resource Control (RRC); the third configuration information configures a second L3 measurement reporting event that is different from the first L3 measurement reporting event in the first configuration information used to perform L3 measurements and reporting; or the third configuration information configures a measurement reporting event based on a joint evaluation of L1 measurements and L3 measurements.

[0160] In some embodiments, the third configuration information also includes an indication of whether L1 or L3 measurements need to be reported.

[0161] In some embodiments, the network device may also determine whether to trigger a cell handover based on Media Access Control (MAC) or a handover based on Radio Resource Control (RRC) based on at least one of the received L1 or L3 measurements.

[0162] In some embodiments, where the terminal device adds an indication that the other of the L1 and L3 measurements is also reported when reporting one of the L1 and L3 measurements, the network device determines whether to trigger a MAC-based cell handover or an RRC-based handover based on the network device's implementation.

[0163] In some embodiments, the network device also transmits at least one of the received L1 or L3 measurements to another network device used to determine whether a MAC-based cell handover or an RRC-based handover has been triggered.

[0164] In some embodiments, the network device includes an RRC layer and a MAC layer; when transmitting second configuration information to the terminal device, the RRC layer instructs the MAC layer to evaluate the L1 measurement at the MAC layer or transmit the received L1 measurement to the RRC layer for evaluation if or when an L1 measurement is received from the terminal device.

[0165] In some embodiments, the network device also transmits MAC-based cell handover commands or RRC-based handover commands to the terminal device.

[0166] Figure 7A A flowchart illustrating an example method 700A implemented at a terminal device (e.g., terminal device 101) according to some embodiments of the present disclosure is shown. Reference will be made to this flowchart for discussion purposes. Figure 1 Method 700A is described from the perspective of terminal device 101.

[0167] like Figure 7A As shown, in block 710A, the terminal device receives first configuration information from the network device for performing Layer 3 (L3) measurements and reporting. In block 720A, the terminal device receives (i) second configuration information and (ii) third configuration information from the network device, the second configuration information being for performing Layer 1 (L1) measurements and reporting for L1 / Layer 2 (L2) triggered mobility (LTM), and the third configuration information being for configuring the terminal device to determine at least one of the L1 or L3 measurements to be performed and reported. In block 730A, the terminal device performs and reports the at least one of the L1 or L3 measurements based on the third configuration information.

[0168] In some embodiments, the third configuration information includes at least one of the following: a common superset of the measurement objects for L1 and L3 measurements, at least one reference signal to be measured, or at least one synchronization signal block measurement timing configuration (SMTC) window.

[0169] In some embodiments, the third configuration information includes configured conditions for performing at least one of L1 or L3 measurements, the configured conditions including at least one of cell detection, a reference signal received power threshold, a reference signal received quality threshold, or a terminal device priority. The terminal device priority is based on the preferred carrier frequency of the terminal device's serving cell. The preferred carrier frequency is based on: the terminal device's power consumption; or depends on the insertion loss of the operating frequency. The terminal device determines whether to suspend or continue at least one of the L3 measurements based on the configured conditions.

[0170] In some embodiments, the terminal device further determines to perform at least one of the L1 or L3 measurements based on a reporting configuration included in third configuration information and indicating that at least one of the L1 or L3 measurements should be reported. In the case of simultaneous reporting of L1 and L3 measurements, the L3 measurement is used for cell detection or cell measurement, and the L1 measurement is used for a specific beam of the cell, and the L1 and L3 measurements overlap.

[0171] In some embodiments, the terminal device further determines, based on its implementation, whether to perform at least one of L1 or L3 measurements.

[0172] In some embodiments, the terminal device also receives information from the network device regarding the measurement gap between L1 and L3 measurements.

[0173] In some embodiments, L1 measurement includes at least one of the following: LTM L1 measurement; Channel State Information (CSI) related measurement; or inter-cell beam management.

[0174] In some embodiments, when the terminal device is configured with L1 measurement or reporting for a cell, the terminal device does not perform an evaluation of L3 measurement reporting events for the same cell; when the L1 measurement includes CSI-related measurement, the L3 measurement reporting event is evaluated for a cell that performs at least one of L1 measurement or L1 reporting; or when the L1 measurement includes inter-cell beam management, the L3 measurement reporting event evaluation is performed for a cell that is configured with inter-cell beam management.

[0175] In some embodiments, the second configuration information and the third configuration information are included in a single combined configuration.

[0176] In some embodiments, the terminal device further performs an evaluation of a measurement reporting event for at least one of the L1 measurement or L3 measurement performed, and the terminal device reports an L1 measurement that satisfies a measurement reporting event for an L1 measurement; and reports an L3 measurement that satisfies a measurement reporting event for an L3 measurement.

[0177] In some embodiments, when performing L1 and L3 measurements and satisfying a first measurement reporting event for L1 measurement and a second measurement reporting event for L3 measurement, the third configuration information configures the terminal device to report at least one of the L1 and L3 measurements. In some embodiments, the third configuration information configures the terminal device to report both L1 and L3 measurements; the third configuration information configures the terminal device to report one of the L1 and L3 measurements that satisfies configured conditions; the configured conditions include absolute or relative thresholds to be satisfied for reporting; the third configuration information configures the terminal device to report one of the L1 and L3 measurements based on configured preferences for prioritizing measurements for handover to a Media Access Control (MAC)-based cell or Radio Resource Control (RRC)-based cell; the third configuration information configures a second L3 measurement reporting event that differs from the first L3 measurement reporting event in the first configuration information used for performing and reporting L3 measurements; and the third configuration information configures a measurement reporting event based on a joint evaluation of the L1 and L3 measurements.

[0178] In some embodiments, the third configuration information also includes an indication of whether L1 or L3 measurements need to be reported.

[0179] Figure 7B A flowchart illustrating an example method 700B implemented at a network device (e.g., network device 102) according to some embodiments of the present disclosure is shown. Reference will be made to this flowchart for purposes of discussion. Figure 1 Method 700B is described from the perspective of network device 102.

[0180] like Figure 7B As shown, in block 710B, the network device transmits first configuration information to the terminal device for performing Layer 3 (L3) measurements and reporting. In block 720B, the network device transmits (i) second configuration information and (ii) third configuration information to the terminal device, the second configuration information being for performing Layer 1 (L1) measurements and reporting for L1 / Layer 2 (L2) triggered mobility (LTM), and the third configuration information being for configuring the terminal device to determine at least one of the L1 or L3 measurements to be performed and reported.

[0181] In some embodiments, the third configuration information includes at least one of the following: a common superset of the measurement objects for L1 and L3 measurements, at least one reference signal to be measured, or at least one synchronization signal block measurement timing configuration (SMTC) window.

[0182] In some embodiments, the third configuration information includes configured conditions for performing at least one of L1 or L3 measurements. These configured conditions include at least one of cell detection, a reference signal received power threshold, a reference signal received quality threshold, or a terminal device priority. The terminal device priority is based on the preferred carrier frequency of the terminal device's serving cell. The preferred carrier frequency is based on at least one of: the terminal device's power consumption; or depends on the insertion loss of the operating frequency.

[0183] In some embodiments, L1 measurement includes at least one of the following: LTM L1 measurement; Channel State Information (CSI) related measurement; or inter-cell beam management.

[0184] In some embodiments, the network device also transmits information about the measurement gap between L1 and L3 measurements to the terminal device. In some embodiments, the network device also receives from the terminal device at least one of an L1 measurement or an L3 measurement performed by the terminal device based on third configuration information.

[0185] In some embodiments, when performing L1 and L3 measurements and satisfying a first measurement reporting event for L1 measurement and a second measurement reporting event for L3 measurement, the third configuration information configures the terminal device to report at least one of the L1 and L3 measurements. In some embodiments, the third configuration information configures the terminal device to report both L1 and L3 measurements; the third configuration information configures the terminal device to report one of the L1 and L3 measurements that satisfies configured conditions; the configured conditions include absolute or relative thresholds to be satisfied for reporting; the third configuration information configures the terminal device to report one of the L1 and L3 measurements based on configured preferences for prioritizing measurements for handover to a Media Access Control (MAC)-based cell or Radio Resource Control (RRC)-based cell; the third configuration information configures a second L3 measurement reporting event that differs from the first L3 measurement reporting event in the first configuration information used for performing L3 measurements and reporting; or the third configuration information configures a measurement reporting event based on a joint evaluation of the L1 and L3 measurements.

[0186] In some embodiments, the network device may also determine whether to trigger a cell handover based on Media Access Control (MAC) or a handover based on Radio Resource Control (RRC) based on at least one of the received L1 or L3 measurements.

[0187] In some embodiments, where the terminal device adds an indication that the other of the L1 and L3 measurements is also reported when reporting one of the L1 and L3 measurements, the network device determines whether to trigger a MAC-based cell handover or an RRC-based handover based on the network device's implementation.

[0188] In some embodiments, the network device also transmits at least one of the received L1 or L3 measurements to another network device used to determine whether a MAC-based cell handover or an RRC-based handover has been triggered.

[0189] In some embodiments, the network device includes an RRC layer and a MAC layer; when transmitting second configuration information to the terminal device, the RRC layer instructs the MAC layer to evaluate the L1 measurement at the MAC layer or transmit the received L1 measurement to the RRC layer for evaluation if or when an L1 measurement is received from the terminal device.

[0190] In some embodiments, the network device also transmits MAC-based cell handover commands or RRC-based handover commands to the terminal device. In some embodiments, the second configuration information and the third configuration information are included in a single combined configuration.

[0191] In some embodiments, an apparatus capable of performing any operation of method 600A (e.g., terminal device 101) may include components for performing the various steps of method 600A. These components may be implemented in any suitable form. For example, the components may be implemented in a circuit or software module.

[0192] In some embodiments, the apparatus includes components for receiving first configuration information from a network device for performing Layer 3 (L3) measurements and reporting; components for receiving (i) second configuration information and (ii) third configuration information from the network device, the second configuration information being for performing Layer 1 (L1) measurements and reporting for L1 / Layer 2 (L2) triggered mobility (LTM), the third configuration information being for configuring the apparatus to perform and report at least one of L1 measurements or L3 measurements; and components for performing and reporting the at least one of the L1 measurements or L3 measurements based on the third configuration information.

[0193] In some embodiments, the third configuration information includes at least one of the following: a common superset of the measurement objects for L1 and L3 measurements, at least one reference signal to be measured, or at least one synchronization signal block measurement timing configuration (SMTC) window.

[0194] In some embodiments, the third configuration information configures the apparatus to pause at least one of the L3 measurements. The apparatus further includes: components for pausing L3 measurements for configured measurement objects included in the third configuration information; and components for performing L1 measurements according to the second configuration information. The apparatus also includes components for pausing L3 measurements based on measurement objects configured for L1 measurements, and components for continuing L3 measurements for the remaining measurement objects.

[0195] In some embodiments, the third configuration information configures the apparatus to continue at least one of the L3 measurements. The apparatus further includes: components for continuing L3 measurements for configured measurement objects included in the third configuration information; and components for performing L1 measurements according to the second configuration information.

[0196] In some embodiments, the third configuration information includes configured conditions for switching from L3 measurement to L1 measurement. The apparatus also includes: components for continuing L3 measurement for a configured measurement object included in the third configuration information; and components for switching to L1 measurement based on the configured conditions.

[0197] In some embodiments, the apparatus further includes components for receiving information from the network device regarding the measurement gaps of L1 and L3 measurements. In some embodiments, second configuration information and third configuration information are included in a single combined configuration.

[0198] In some embodiments, the apparatus further includes components for evaluating a measurement reporting event for at least one of the performed L1 or L3 measurements. The apparatus also includes components for reporting an L1 measurement that satisfies a measurement reporting event for an L1 measurement; and the apparatus further includes components for reporting an L3 measurement that satisfies a measurement reporting event for an L3 measurement.

[0199] In some embodiments, when performing L1 and L3 measurements and satisfying a first measurement report event for L1 measurement and a second measurement report event for L3 measurement, the third configuration information configures the device to report at least one of the L1 and L3 measurements.

[0200] In some embodiments, the third configuration information configures the device to report L1 measurements and L3 measurements; the third configuration information configures the device to report one of L1 measurements and L3 measurements that meet configured conditions; the configured conditions include absolute or relative thresholds to be met for reporting; the third configuration information configures the device to report one of L1 measurements and L3 measurements based on configured preferences for prioritizing measurements for handover to a cell based on Media Access Control (MAC) or a handover based on Radio Resource Control (RRC); the third configuration information configures a second L3 measurement reporting event that is different from the first L3 measurement reporting event in the first configuration information used to perform L3 measurements and reporting; or the third configuration information configures a measurement reporting event based on a joint evaluation of L1 measurements and L3 measurements.

[0201] In some embodiments, the third configuration information also includes an indication of whether L1 or L3 measurements need to be reported.

[0202] In some embodiments, the apparatus further includes components for performing additional steps in some embodiments of method 600A. In some embodiments, the components include at least one processor and at least one memory including computer program code, the at least one memory and the computer program code being configured to cause the apparatus to operate together with the at least one processor.

[0203] In some embodiments, an apparatus capable of performing any operation of method 600B (e.g., network device 102) may include components for performing the various steps of method 600B. These components may be implemented in any suitable form. For example, the components may be implemented in a circuit or software module.

[0204] In some embodiments, the apparatus includes components for transmitting to a terminal device first configuration information for performing layer 3 (L3) measurements and reporting; second configuration information for transmitting to the terminal device layer 1 (L1) measurements and reporting regarding L1 / layer 2 (L2) triggered mobility (LTM); and third configuration information for configuring the terminal device to perform and report at least one of L1 measurements or L3 measurements.

[0205] In some embodiments, the third configuration information includes at least one of the following: a common superset of the measurement objects for L1 and L3 measurements, at least one reference signal to be measured, or at least one synchronization signal block measurement timing configuration (SMTC) window.

[0206] In some embodiments, the third configuration information configures the terminal device to pause at least one of the L3 measurements. In some embodiments, the third configuration information configures the terminal device to continue at least one of the L3 measurements. In some embodiments, the third configuration information includes configured conditions for switching to L1 measurements.

[0207] In some embodiments, the apparatus further includes components for transmitting information about a measurement gap to a terminal device, the measurement gap being used by the terminal device to perform at least one of an L1 measurement and an L3 measurement. In some embodiments, the apparatus further includes components for receiving at least one of the performed L1 measurement or L3 measurement from the terminal device.

[0208] In some embodiments, the third configuration information configures the terminal device to report L1 measurements and L3 measurements; the third configuration information configures the terminal device to report one of L1 measurements and L3 measurements that meet configured conditions; the configured conditions include absolute or relative thresholds to be met for reporting; the third configuration information configures the terminal device to report one of L1 measurements and L3 measurements based on configured preferences for prioritizing measurements for handover to a cell based on Media Access Control (MAC) or a handover based on Radio Resource Control (RRC); the third configuration information configures a second L3 measurement reporting event that is different from the first L3 measurement reporting event in the first configuration information used to perform L3 measurements and reporting; or the third configuration information configures a measurement reporting event based on a joint evaluation of L1 measurements and L3 measurements.

[0209] In some embodiments, the third configuration information also includes an indication of whether L1 or L3 measurements need to be reported.

[0210] In some embodiments, the apparatus further includes components for determining whether to trigger a Media Access Control (MAC)-based cell handover or a Radio Resource Control (RRC)-based handover based on at least one of the received L1 or L3 measurements.

[0211] In some embodiments, the apparatus further includes a component for determining, based on an implementation of the apparatus, to trigger either a MAC-based cell handover or an RRC-based handover when the terminal device adds an indication that the other of the L1 and L3 measurements is also reported, while reporting one of the L1 and L3 measurements.

[0212] In some embodiments, the apparatus further includes components for transmitting at least one of the received L1 or L3 measurements to another network device for determining whether to trigger a MAC-based cell handover or an RRC-based handover.

[0213] In some embodiments, the apparatus includes an RRC layer and a MAC layer; when transmitting second configuration information to the terminal device, the RRC layer instructs the MAC layer to evaluate the L1 measurement in the MAC layer or transmit the received L1 measurement to the RRC layer for evaluation if or when an L1 measurement is received from the terminal device.

[0214] In some embodiments, the apparatus further includes components for transmitting MAC-based cell handover commands or RRC-based handover commands to a terminal device.

[0215] In some embodiments, the apparatus further includes components for performing additional steps in some embodiments of method 600B. In some embodiments, the components include at least one processor and at least one memory including computer program code, the at least one memory and the computer program code being configured to cause the apparatus to operate together with the at least one processor.

[0216] In some embodiments, an apparatus capable of performing any operation of method 700A (e.g., terminal device 101) may include components for performing the various steps of method 700A. These components may be implemented in any suitable form. For example, the components may be implemented in a circuit or software module.

[0217] In some embodiments, the apparatus includes components for receiving first configuration information from a network device for performing Layer 3 (L3) measurements and reporting; components for receiving (i) second configuration information and (ii) third configuration information from the network device, the second configuration information being for performing Layer 1 (L1) measurements and reporting for L1 / Layer 2 (L2) triggered mobility (LTM), the third configuration information being for configuring the apparatus to determine at least one of L1 or L3 measurements to be performed and reported; and components for performing and reporting at least one of L1 or L3 measurements based on the third configuration information.

[0218] In some embodiments, the third configuration information includes at least one of the following: a common superset of the measurement objects for L1 and L3 measurements, at least one reference signal to be measured, or at least one synchronization signal block measurement timing configuration (SMTC) window.

[0219] In some embodiments, the third configuration information includes configured conditions for performing at least one of L1 or L3 measurements, the configured conditions including at least one of cell detection, a reference signal received power threshold, a reference signal received quality threshold, or a device priority. The device priority is based on a preferred carrier frequency of the serving cell of the device. The preferred carrier frequency is based on: the power consumption of the device; or depends on the insertion loss of the operating frequency. The device also includes components for determining whether to suspend or continue at least one of the L3 measurements based on the configured conditions.

[0220] In some embodiments, the apparatus further includes components for determining whether to perform at least one of the L1 or L3 measurements based on a reporting configuration included in third configuration information and indicating that at least one of the L1 or L3 measurements should be reported. In the case of simultaneous reporting of L1 and L3 measurements, the L3 measurement is used for cell detection or cell measurement, and the L1 measurement is used for a specific beam of the cell, and the L1 and L3 measurements overlap.

[0221] In some embodiments, the apparatus further includes components for determining, based on the implementation of the apparatus, to perform at least one of an L1 measurement or an L3 measurement.

[0222] In some embodiments, the apparatus further includes a component for receiving information from a network device regarding the measurement gap between L1 and L3 measurements.

[0223] In some embodiments, L1 measurement includes at least one of the following: LTM L1 measurement; Channel State Information (CSI) related measurement; or inter-cell beam management. In some embodiments, when the apparatus is configured to perform L1 measurement or reporting for a cell, the apparatus further includes components for evaluating L3 measurement reporting events not performed for the same cell; when the L1 measurement includes CSI related measurement, the apparatus further includes components for evaluating L3 measurement reporting events for a cell performing at least one of L1 measurement or L1 reporting; or, when the L1 measurement includes inter-cell beam management, the apparatus further includes components for evaluating L3 measurement reporting events for a cell configured with inter-cell beam management.

[0224] In some embodiments, the second configuration information and the third configuration information are included in a single combined configuration.

[0225] In some embodiments, the apparatus further includes components for evaluating a measurement reporting event for at least one of the performed L1 or L3 measurements. In some embodiments, the apparatus further includes components for reporting an L1 measurement that satisfies a measurement reporting event for an L1 measurement; and components for reporting an L3 measurement that satisfies a measurement reporting event for an L3 measurement.

[0226] In some embodiments, when performing L1 and L3 measurements and satisfying a first measurement reporting event for L1 measurements and a second measurement reporting event for L3 measurements, the third configuration information configures the device to report at least one of the L1 and L3 measurements. In some embodiments, the third configuration information configures the device to report both L1 and L3 measurements; the third configuration information configures the device to report one of the L1 and L3 measurements that satisfies configured conditions; the configured conditions include absolute or relative thresholds to be satisfied for reporting; the third configuration information configures the device to report one of the L1 and L3 measurements based on configured preferences for prioritizing measurements for handovers to or from Media Access Control (MAC)-based cell handovers or Radio Resource Control (RRC)-based handovers; the third configuration information configures a second L3 measurement reporting event that differs from the first L3 measurement reporting event in the first configuration information used for performing and reporting L3 measurements; and the third configuration information configures a measurement reporting event based on a joint evaluation of the L1 and L3 measurements.

[0227] In some embodiments, the third configuration information also includes an indication of whether L1 or L3 measurements need to be reported.

[0228] In some embodiments, the apparatus further includes components for performing additional steps in some embodiments of method 700A. In some embodiments, the components include at least one processor and at least one memory including computer program code, the at least one memory and the computer program code being configured to cause the apparatus to operate together with the at least one processor.

[0229] In some embodiments, an apparatus capable of performing any operation of method 700B (e.g., network device 102) may include components for performing the various steps of method 700B. These components may be implemented in any suitable form. For example, the components may be implemented in a circuit or software module.

[0230] In some embodiments, the apparatus includes components for transmitting to a terminal device first configuration information for performing Layer 3 (L3) measurements and reporting; and components for transmitting to the terminal device (i) second configuration information and (ii) third configuration information, the second configuration information being for performing Layer 1 (L1) measurements and reporting for L1 / Layer 2 (L2) triggered mobility (LTM), the third configuration information being for configuring the terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported.

[0231] In some embodiments, the third configuration information includes at least one of the following: a common superset of the measurement objects for L1 and L3 measurements, at least one reference signal to be measured, or at least one synchronization signal block measurement timing configuration (SMTC) window.

[0232] In some embodiments, the third configuration information includes configured conditions for performing at least one of L1 or L3 measurements. These configured conditions include at least one of cell detection, a reference signal received power threshold, a reference signal received quality threshold, or a terminal device priority. The terminal device priority is based on the preferred carrier frequency of the terminal device's serving cell. The preferred carrier frequency is based on at least one of: the terminal device's power consumption; or depends on the insertion loss of the operating frequency.

[0233] In some embodiments, L1 measurement includes at least one of the following: LTM L1 measurement; Channel State Information (CSI) related measurement; or inter-cell beam management.

[0234] In some embodiments, the apparatus further includes components for transmitting information about the measurement gaps of the L1 and L3 measurements to a terminal device. In some embodiments, the apparatus further includes components for receiving from the terminal device at least one of the L1 or L3 measurements performed by the terminal device based on third configuration information.

[0235] In some embodiments, when performing L1 and L3 measurements and satisfying a first measurement reporting event for L1 measurement and a second measurement reporting event for L3 measurement, the third configuration information configures the terminal device to report at least one of the L1 and L3 measurements. In some embodiments, the third configuration information configures the terminal device to report both L1 and L3 measurements; the third configuration information configures the terminal device to report one of the L1 and L3 measurements that satisfies configured conditions; the configured conditions include absolute or relative thresholds to be satisfied for reporting; the third configuration information configures the terminal device to report one of the L1 and L3 measurements based on configured preferences for prioritizing measurements for handover to a Media Access Control (MAC)-based cell or Radio Resource Control (RRC)-based cell; the third configuration information configures a second L3 measurement reporting event that differs from the first L3 measurement reporting event in the first configuration information used for performing L3 measurements and reporting; or the third configuration information configures a measurement reporting event based on a joint evaluation of the L1 and L3 measurements.

[0236] In some embodiments, the apparatus further includes components for determining whether to trigger a Media Access Control (MAC)-based cell handover or a Radio Resource Control (RRC)-based handover based on at least one of the received L1 or L3 measurements.

[0237] In some embodiments, the apparatus further includes a component for determining, based on an implementation of the apparatus, to trigger either a MAC-based cell handover or an RRC-based handover when the terminal device adds an indication that the other of the L1 and L3 measurements is also reported, while reporting one of the L1 and L3 measurements.

[0238] In some embodiments, the apparatus further includes components for transmitting at least one of the received L1 or L3 measurements to another network device for determining whether to trigger a MAC-based cell handover or an RRC-based handover.

[0239] In some embodiments, the apparatus includes an RRC layer and a MAC layer; when transmitting second configuration information to the terminal device, the RRC layer instructs the MAC layer to evaluate the L1 measurement in the MAC layer or transmit the received L1 measurement to the RRC layer for evaluation if or when an L1 measurement is received from the terminal device.

[0240] In some embodiments, the apparatus further includes components for transmitting MAC-based cell handover commands or RRC-based handover commands to a terminal device. In some embodiments, the second configuration information and the third configuration information are included in a single combined configuration.

[0241] In some embodiments, the apparatus further includes components for performing additional steps in some embodiments of method 700B. In some embodiments, the components include at least one processor and at least one memory including computer program code, the at least one memory and the computer program code being configured to cause the apparatus to operate together with the at least one processor.

[0242] Figure 8 This is a simplified block diagram of a device 800 suitable for implementing embodiments of the present disclosure. The device 800 can be provided to implement a communication device, such as... Figure 1 The terminal device 101, the first to third network devices 102 and 103 are shown. As shown, device 800 includes one or more processors 810, one or more memories 820 coupled to processor 810, and one or more communication modules 840 coupled to processor 810.

[0243] Communication module 840 is used for bidirectional communication. Communication module 840 has at least one antenna to facilitate communication. The communication interface can represent any interface required for communication with other network elements.

[0244] Processor 810 can be of any type suitable for a local technology network and, as a non-limiting example, can include one or more of the following: general-purpose computer, special-purpose computer, microprocessor, digital signal processor (DSP), and processor based on a multi-core processor architecture. Device 800 can have multiple processors, such as application-specific integrated circuit chips whose timing is controlled by a clock that synchronizes the main processor.

[0245] Memory 820 may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memories include, but are not limited to, read-only memory (ROM) 824, electrically programmable read-only memory (EPROM), flash memory, hard disk, compact disc (CD), digital video disc (DVD), and other magnetic and / or optical storage devices. Examples of volatile memories include, but are not limited to, random access memory (RAM) 822 and other volatile memories that do not persist during power-off periods.

[0246] Computer program 830 includes computer-executable instructions that are executed by the associated processor 810. Program 830 may be stored in ROM 824. Processor 810 may perform any suitable actions and processes by loading program 830 into RAM 822.

[0247] The embodiments of this disclosure can be implemented by means of a program, enabling device 800 to perform as described in the reference. Figures 3 to 7B Any process discussed in this disclosure. Embodiments of this disclosure may also be implemented by hardware or by a combination of software and hardware.

[0248] In some embodiments, program 830 may be tangibly stored in a computer-readable medium, which may be included in device 800 (such as in memory 820) or in other storage devices accessible by device 800. Device 800 may load program 830 from the computer-readable medium into RAM 822 for execution. The computer-readable medium may include any type of tangible non-volatile memory, such as ROM, EPROM, flash memory, hard disk, CD, DVD, etc. Figure 9 An example of a computer-readable medium 900 in the form of a CD or DVD is shown. The computer-readable medium has a program 830 stored thereon.

[0249] Generally, the various embodiments of this disclosure can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. Some aspects may be implemented in hardware, while others may be implemented in firmware or software, which may be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of this disclosure are illustrated and described as block diagrams, flowcharts, or using some other graphical representation, it should be understood that, as non-limiting examples, the blocks, apparatuses, systems, techniques, or methods described herein may be implemented in hardware, software, firmware, dedicated circuitry or logic, general-purpose hardware or controllers or other computing devices, or some combination thereof.

[0250] This disclosure also provides at least one computer program product tangibly stored on a non-transient computer-readable storage medium. The computer program product includes computer-executable instructions, such as those included in program modules, which are executed in a device on a target real or virtual processor to perform the functions described above. Figures 3 to 7B The process ranges from 300 to 700 bytes. Typically, a program module includes routines, programs, libraries, objects, classes, components, data structures, etc., that perform specific tasks or implement specific abstract data types. In various embodiments, the functionality of program modules can be combined or separated among program modules as desired. The machine-executable instructions of a program module can be executed on a local or distributed device. In a distributed device, program modules can reside on both local and remote storage media.

[0251] Program code used to perform the methods of this disclosure may be written in any combination of one or more programming languages. This program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus such that, when the processor or controller executes the program code, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The program code may be executed entirely on a machine, partially on a machine, as a stand-alone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0252] In the context of this disclosure, computer program code or related data may be carried on any suitable carrier to enable a device, apparatus, or processor to perform the various processes and operations described above. Examples of carriers include signals, computer-readable media, etc.

[0253] Computer-readable media can be computer-readable signal media or computer-readable storage media. Computer-readable media can include, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any suitable combination of the foregoing. More specific examples of computer-readable storage media include: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disc read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing. As used herein, the term "non-transient" is a limitation of the medium itself (i.e., tangible, not signaling), not a limitation of data storage persistence (e.g., RAM and ROM).

[0254] Furthermore, although the operations are depicted in a specific order, this should not be construed as requiring that such operations be performed in the specific order shown or sequentially, or requiring that all illustrated operations be performed to achieve the desired result. In some scenarios, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are included in the foregoing discussion, these should not be construed as limiting the scope of this disclosure, but rather as a description of features that may be specific to particular embodiments. Certain features described in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented separately in multiple embodiments or in any suitable sub-combination.

[0255] Although this disclosure has been described in language specific to structural features and / or methodological actions, it should be understood that the disclosure defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are disclosed as exemplary forms of implementing the claims. Example 1. A terminal device comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the terminal device to at least: receive first configuration information from a network device for performing Layer 3 (L3) measurements and reporting; receive (i) second configuration information and (ii) third configuration information from the network device, the second configuration information being for performing L1 measurements and reporting for Layer 1 (L1) / Layer 2 (L2) triggered mobility LTM, the third configuration information being for configuring the terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported; and perform and report the at least one of the L1 measurement or L3 measurement based on the third configuration information.

[0256] Example 2. The terminal device according to Example 1, wherein the third configuration information includes at least one of the following: a shared superset of the measurement objects of L1 measurement and L3 measurement, at least one reference signal to be measured, or at least one synchronization signal block measurement timing configuration SMTC window.

[0257] Example 3. The terminal device according to Example 1 or 2, wherein the third configuration information includes configured conditions for performing at least one of L1 measurement or L3 measurement.

[0258] Example 4. The terminal device according to Example 1 or 2, wherein the terminal device further enables: determining at least one of pausing or continuing L3 measurements based on configured conditions.

[0259] Example 5. The terminal device according to Example 4, wherein the configured conditions include at least one of cell detection, reference signal received power threshold, reference signal received quality threshold, or priority of the terminal device.

[0260] Example 6. The terminal device according to Example 5, wherein the priority of the terminal device is based on the carrier frequency of the serving cell of the terminal device.

[0261] Example 7. The terminal device according to Example 6, wherein the preferred carrier frequency is based on at least one of the following: the power consumption of the terminal device; or the insertion loss depending on the operating frequency.

[0262] Example 8. The terminal device according to Example 1 or 2, wherein the terminal device further comprises: determining to perform the at least one of the L1 measurement or L3 measurement based on a report configuration included in third configuration information and indicating that at least one of the L1 measurement or L3 measurement is to be reported.

[0263] Example 9. The terminal device according to Example 8, wherein when L1 measurement and L3 measurement are reported simultaneously, L3 measurement is used for cell detection or cell measurement, and L1 measurement is used for a specific beam of the cell, and L1 measurement and L3 measurement overlap with each other.

[0264] Example 10. The terminal device according to Example 1 or 2, wherein the terminal device further comprises: determining, based on the implementation of the terminal device, to perform at least one of L1 measurement or L3 measurement.

[0265] Example 11. A terminal device according to any one of Examples 1 to 10, wherein the terminal device further comprises: receiving information from a network device regarding the measurement gap between L1 and L3 measurements.

[0266] Example 12. The terminal device according to any one of Examples 1 to 11, wherein the L1 measurement includes at least one of the following: LTM L1 measurement; Channel State Information (CSI) related measurement; or inter-cell beam management.

[0267] Example 13. The terminal device according to Example 12, wherein the terminal device further comprises: when the terminal device is configured to perform L1 measurement or reporting for a cell, not performing an evaluation of L3 measurement reporting events for the same cell; when the L1 measurement includes CSI-related measurement, evaluating L3 measurement reporting events for cells performing at least one of L1 measurement or L1 reporting; or when the L1 measurement includes inter-cell beam management, performing an evaluation of L3 measurement reporting events for cells configured with inter-cell beam management.

[0268] Example 14. A terminal device according to any one of Examples 1 to 13, wherein the second configuration information and the third configuration information are included in a single combined configuration.

[0269] Example 15. The terminal device according to any one of Examples 1 to 14, wherein the terminal device further comprises: performing an evaluation of a measurement report event for at least one of the L1 measurement or L3 measurement performed.

[0270] Example 16. The terminal device according to Example 15, wherein the terminal device reports at least one of the performed L1 measurement or L3 measurement by: reporting an L1 measurement that satisfies a measurement report event for an L1 measurement; and reporting an L3 measurement that satisfies a measurement report event for an L3 measurement.

[0271] Example 17. A terminal device according to any one of Examples 1 to 15, wherein, when performing L1 measurement and L3 measurement and satisfying a first measurement report event for L1 measurement and a second measurement report event for L3 measurement, third configuration information configures the terminal device to report at least one of L1 measurement and L3 measurement.

[0272] Example 18. The terminal device according to Example 17, wherein the third configuration information configures the terminal device to report both L1 measurement and L3 measurement.

[0273] Example 19. The terminal device according to Example 17, wherein the third configuration information configures the terminal device to report one of the L1 measurement and L3 measurement that meets the configured conditions.

[0274] Example 20. The terminal device according to Example 19, wherein the configured conditions include absolute or relative thresholds to be met for reporting.

[0275] Example 21. The terminal device according to Example 17, wherein the third configuration information configures the terminal device to report one of L1 measurements and L3 measurements based on a configured preference, the configured preference being used to prioritize the measurement, to cell handover based on Media Access Control (MAC) or handover based on Radio Resource Control (RRC).

[0276] Example 22. The terminal device according to Example 17, wherein the third configuration information configures a second L3 measurement report event, which is different from the first L3 measurement report event in the first configuration information used to perform L3 measurement and reporting.

[0277] Example 23. The terminal device according to Example 17, wherein the third configuration information configures a measurement report event based on the joint evaluation of L1 measurement and L3 measurement.

[0278] Example 24. The terminal device according to any one of Examples 1 to 2, wherein the third configuration information further includes an indication for indicating whether L1 measurement or L3 measurement needs to be reported.

[0279] Example 25. A network device, comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the network device to at least: transmit first configuration information to an end device for performing Layer 3 L3 measurements and reporting; and transmit (i) second configuration information and (ii) third configuration information to the end device, the second configuration information being for performing and reporting L1 measurements for Layer 1 L1 / Layer 2 L2 triggered mobility LTM, and the third configuration information being for configuring the end device to determine at least one of the L1 measurements or L3 measurements to be performed and reported.

[0280] Example 26. A method at a terminal device, comprising: receiving from a network device first configuration information for performing Layer 3 (L3) measurements and reporting; receiving from the network device (i) second configuration information and (ii) third configuration information, the second configuration information for performing L1 measurements and reporting for Layer 1 (L1) / Layer 2 (L2) triggered mobility LTM, the third configuration information for configuring the terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported; and performing and reporting the at least one of the L1 measurement or L3 measurement based on the third configuration information.

[0281] Example 27. A method at a network device, comprising: transmitting to a terminal device first configuration information for performing Layer 3 L3 measurements and reporting; and transmitting to the terminal device (i) second configuration information and (ii) third configuration information, the second configuration information being for performing L1 measurements and reporting for Layer 1 L1 / Layer 2 L2 triggered mobility LTM, and the third configuration information being for configuring the terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported.

[0282] Example 28. An apparatus comprising: components for receiving first configuration information from a network device for performing Layer 3 (L3) measurements and reporting; components for receiving (i) second configuration information and (ii) third configuration information from the network device, the second configuration information being for performing L1 measurements and reporting for Layer 1 (L1) / Layer 2 (L2) triggered mobility LTM, the third configuration information being for configuring a terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported; and components for performing and reporting the at least one of the L1 measurement or L3 measurement based on the third configuration information.

[0283] Example 29. An apparatus comprising: components for transmitting first configuration information to a terminal device for performing Layer 3 (L3) measurement and reporting; and components for transmitting (i) second configuration information and (ii) third configuration information to the terminal device, the second configuration information being for performing L1 measurement and reporting (LTM) for mobility triggered by Layer 1 (L1) / Layer 2 (L2), and the third configuration information being for configuring the terminal device to determine at least one of an L1 measurement or an L3 measurement to be performed and reported.

[0284] Example 30. A computer-readable medium comprising program instructions for causing a device to execute at least the method described in Example 26 or 27.

Claims

1. A terminal device, comprising: At least one processor; as well as At least one memory stores instructions that, when executed by the at least one processor, cause the terminal device to at least: Receive first configuration information from the network device for performing Layer 3 (L3) measurements and reporting; The terminal device receives (i) second configuration information and (ii) third configuration information, wherein the second configuration information is used to perform L1 measurement and reporting for mobility LTM triggered by Layer 1 L1 / Layer 2 L2, and the third configuration information is used to configure the terminal device to determine at least one of the L1 measurement or the L3 measurement to be performed and reported. as well as Perform and report at least one of the L1 measurement or the L3 measurement based on the third configuration information.

2. The terminal device according to claim 1, wherein the third configuration information includes at least one of the following: a shared superset of the measurement objects of the L1 measurement and the L3 measurement, at least one reference signal to be measured, or at least one synchronization signal block measurement timing configuration SMTC window. The third configuration information includes configured conditions for performing at least one of the L1 measurement or the L3 measurement. The terminal device is also configured to determine, based on its implementation, to perform at least one of L1 measurement or L3 measurement. The terminal device is also configured to receive information from the network device regarding the measurement gap between the L1 measurement and the L3 measurement. The second configuration information and the third configuration information are included in a single combined configuration, or The third configuration information also includes an indication of whether the L1 measurement or the L3 measurement needs to be reported.

3. The terminal device according to claim 1, wherein the terminal device further comprises: Based on the configured conditions, determine whether to pause or continue at least one of the L3 measurements. The configured conditions include at least one of cell detection, reference signal received power threshold, reference signal received quality threshold, or the priority of the terminal device. The priority of the terminal device is based on the preferred carrier frequency of the serving cell of the terminal device, and The preferred carrier frequency is based on at least one of the following: the power consumption of the terminal device; or the insertion loss depends on the operating frequency.

4. The terminal device of claim 1, wherein the terminal device is further configured to determine, based on a reporting configuration included in the third configuration information and indicating that at least one of the L1 measurement or the L3 measurement is to be performed, and In cases where both the L1 and L3 measurements are reported simultaneously, the L3 measurement is used for cell detection or cell measurement, and the L1 measurement is used for a specific beam of the cell, and the L1 and L3 measurements overlap.

5. The terminal device according to claim 1, wherein the L1 measurement includes at least one of the following: LTM L1 measurement; Channel State Information (CSI) related measurement; or inter-cell beam management, and The terminal device is also configured to: when the terminal device is configured to perform L1 measurement or reporting for a cell, not perform an evaluation of L3 measurement reporting events for the same cell; when the L1 measurement includes the CSI-related measurement, evaluate L3 measurement reporting events for cells performing at least one of L1 measurement or L1 reporting; or when the L1 measurement includes the inter-cell beam management, perform an evaluation of L3 measurement reporting events for cells configured with the inter-cell beam management.

6. The terminal device of claim 1, wherein the terminal device is further configured to perform an evaluation of a measurement report event for at least one of the performed L1 measurement or L3 measurement, and The terminal device is also configured to report at least one of the performed L1 or L3 measurements by: reporting the L1 measurement that satisfies the measurement report event for the L1 measurement; and reporting the L3 measurement that satisfies the measurement report event for the L3 measurement.

7. The terminal device of claim 1, wherein, upon performing the L1 measurement and the L3 measurement and satisfying a first measurement report event for the L1 measurement and a second measurement report event for the L3 measurement, the third configuration information configures the terminal device to report at least one of the L1 measurement and the L3 measurement. The third configuration information configures the terminal device to report both the L1 measurement and the L3 measurement, or the third configuration information configures the terminal device to report one of the L1 measurement and the L3 measurement that meets the configured conditions. The configured conditions include absolute or relative thresholds to be met for reporting, or the third configuration information configures the terminal device to report one of the L1 and L3 measurements based on configured preferences, which prioritize the measurement for cell handover based on Media Access Control (MAC) or handover based on Radio Resource Control (RRC), or the third configuration information configures a second L3 measurement reporting event that is different from the first L3 measurement reporting event in the first configuration information used to perform the L3 measurement and reporting, or the third configuration information configures a measurement reporting event based on a joint evaluation of the L1 and L3 measurements.

8. A network device, comprising: At least one processor; as well as At least one memory stores instructions that, when executed by the at least one processor, cause the network device to at least: Transmit the first configuration information for performing Layer 3 (L3) measurements and reporting to the terminal device; as well as The terminal device is transmitted (i) second configuration information and (ii) third configuration information, the second configuration information being used to perform and report L1 measurements for mobility LTM triggered by Layer 1 L1 / Layer 2 L2, and the third configuration information being used to configure the terminal device to determine at least one of the L1 measurements or the L3 measurements to be performed and reported.

9. A method at a terminal device, comprising: Receive first configuration information from the network device for performing Layer 3 (L3) measurements and reporting; The terminal device receives (i) second configuration information and (ii) third configuration information, wherein the second configuration information is used to perform L1 measurement and reporting for mobility LTM triggered by Layer 1 L1 / Layer 2 L2, and the third configuration information is used to configure the terminal device to determine at least one of the L1 measurement or the L3 measurement to be performed and reported. as well as Perform and report at least one of the L1 measurement or the L3 measurement based on the third configuration information.

10. A method at a network device, comprising: Transmit the first configuration information for performing Layer 3 (L3) measurements and reporting to the terminal device; as well as The terminal device is transmitted (i) second configuration information and (ii) third configuration information, the second configuration information being used to perform L1 measurement and reporting for mobility LTM triggered by Layer 1 L1 / Layer 2 L2, and the third configuration information being used to configure the terminal device to determine at least one of the L1 measurement or the L3 measurement to be performed and reported.

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