Measurement method, measurement apparatus and communication system

Abstract

Provided in the embodiments of the present application are a measurement method, a measurement apparatus and a communication system. The measurement apparatus can comprise: a processor, which performs event evaluation based on a beam of a serving cell and / or a beam of a candidate cell; and a transmitter, which causes, when layer 1 measurement reporting based on a first event is triggered, a terminal device to transmit a first media access control layer control element (a first MAC CE) to a network device, wherein the first MAC CE comprises at least one of the following: reference signal information and event information.

Description

Measurement method, measurement device and communication system TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communication technology. BACKGROUND

[0002] Network-controlled mobility is applicable to connected-state terminals and can be divided into two types of mobility: cell-level mobility and beam-level mobility. The cell-level mobility can be based on layer 3 or based on layer 1 / 2.

[0003] In Rel-18, layer 1 / 2 mobility (L1 / L2 Triggered Mobility, LTM) is introduced, which can provide enhancement of handover latency and interruption time compared to layer 3-based mobility. However, compared to layer 3 mobility, the LTM introduced in Rel-18 also has some limitations. The goal of the Rel-19 work item is to eliminate these limitations.

[0004] LTM operation only supports inter-cell mobility within the same gNB (same CU). According to the deployment scenarios of the network, this greatly limits the opportunities for using LTM. By ensuring LTM operation between cells of different gNBs (i.e., inter-CU), the network will be able to enable many more times of handover to benefit from LTM.

[0005] Layer 3 mobility uses layer 3 measurement reporting, which supports events evaluated by terminal devices (UEs) to trigger measurement reporting, reducing signaling overhead compared to periodic measurement reporting. Layer 1 measurement for LTM mobility does not support such trigger events.

[0006] Layer 1 measurement of the LTM procedure is limited to SSB measurement. Extending L1 measurement to include CSI-RS can address this limitation and is expected to enable greater throughput on the target cell immediately after cell switching.

[0007] SUMMARY

[0008] Currently, for event triggered layer 1 measurement reporting, the following LTM events based on beam specific quality of serving cell and / or candidate cell are supported as L1 LTM measurement events: Event LTM1: Beam of serving cell becomes better than an absolute threshold; Event LTM2: Beam of serving cell becomes worse than an absolute threshold; Event LTM3: Beam of candidate cell becomes better than beam of serving cell by an offset; Event LTM4: Beam of candidate cell becomes better than an absolute threshold; Event LTM5: Beam of serving cell becomes worse than a first absolute threshold and beam of candidate cell becomes better than a second absolute threshold. But the content and / or format of event triggered layer 1 measurement reporting is not defined, which makes the network unable to understand the content reported by the UE, and thus unable to make corresponding decisions based on the content.

[0009] To at least one of the above problems or other similar problems, embodiments of the present application provide a measurement method, a measurement device and a communication system.

[0010] According to an aspect of embodiments of the present application, a measurement device configured in a terminal device is provided, wherein the device comprises:

[0011] a processor performing event evaluation based on a beam of a serving cell and / or a beam of a candidate cell;

[0012] a transmitter sending, when a first event based layer 1 measurement reporting is triggered, a first medium access control layer control element (first MAC CE) to a network device, the first MAC CE comprising at least one of: reference signal information and event information.

[0013] According to another aspect of embodiments of the present application, a measurement device configured in a network device is provided, wherein the device comprises:

[0014] a receiver receiving, when a first event based layer 1 measurement reporting is triggered, a first medium access control layer control element (first MAC CE) sent by the terminal device, the first MAC CE comprising at least one of: reference signal information and event information.

[0015] One of the beneficial effects of embodiments of the present application is that the terminal device can send, when a first event based layer 1 measurement reporting is triggered, a first medium access control layer control element (first MAC CE) to a network device. The first MAC CE comprises at least one of: reference signal information and event information. Thus, the network device can understand the content reported by the terminal device, and thus facilitate the network device to make corresponding decisions based on the content.

[0016] The particular implementations of the application described in detail below are illustrative only and are not intended to limit the scope of the application. Numerous variations, either to details of the implementations or to the general principles described herein, can be made by those skilled in the art without departing from the scope of the application. Reference should be made to the appended claims for an understanding of the scope of the application.

[0017] Features described and / or illustrated with respect to one implementation can be used in one or more other implementations in the same or similar manner, in combination with or in place of features in other implementations, and / or for the same, equivalent, or similar effect.

[0018] It is emphasized that the term "comprises / comprising" when used in this specification is taken to specify the presence of stated features, integers, steps, or components but does not preclude the presence or addition of one or more other features, integers, steps, components, or groups thereof. BRIEF DESCRIPTION OF DRAWINGS

[0019] Elements and features of one or more embodiments of the application described in one figure or implementation can be combined with elements and features of one or more other figures or implementations. Also, in the drawings, like reference numerals designate corresponding parts throughout the several views, and can be used to designate like components in more than one implementation.

[0020] FIG. 1 is a schematic diagram of a communication system according to an embodiment of the application;

[0021] FIG. 2 is a schematic diagram of an inter-cell mobility scenario under the same gNB(-CU);

[0022] FIG. 3 is a schematic diagram of an intra-CU LTM cell change procedure;

[0023] FIG. 4 is a schematic diagram of contention-free random access (CFRA);

[0024] FIG. 5 is a schematic diagram of layer 1 measurement related parameters;

[0025] FIG. 6 is a schematic diagram of a measurement model;

[0026] FIG. 7 is a schematic diagram of a measurement method according to an embodiment of the application;

[0027] FIG. 8 is a schematic diagram of a measurement method according to an embodiment of the application;

[0028] FIG. 9 is a schematic diagram of a measurement apparatus according to an embodiment of the application;

[0029] FIG. 10 is a schematic diagram of a measurement apparatus according to an embodiment of the application;

[0030] FIG. 11 is a schematic diagram of a terminal device according to an embodiment of the application;

[0031] FIG. 12 is a schematic diagram of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0032] The foregoing and other features of the present application will become apparent to those skilled in the art upon consideration of the following description of specific embodiments of the application, taken in conjunction with the accompanying drawings. In the description of embodiments of the application, specific terminology is employed for the sake of clarity. However, the application is not intended to be limited to the specific embodiments described, but is to be understood to include all modifications, equivalents, and alternatives that fall within the scope of the appended claims.

[0033] In the embodiments of the present application, the terms "first", "second", and the like are used to distinguish different elements from one another, but do not indicate spatial arrangement or temporal order of the elements, and the elements should not be limited by these terms. The term "and / or" includes any one and all combinations of the associated listed terms. The terms "comprise", "include", "have", and the like, mean the presence of the stated feature, element, component, or assembly, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies.

[0034] In the embodiments of the present application, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. The term "said" should be interpreted to mean "any one or more" of the enumerated features, elements, components, or assemblies, unless the context clearly dictates otherwise. In addition, the term "according to" should be interpreted as "based, at least in part, on", and the term "based on" should be interpreted as "based, at least in part, on", unless the context clearly dictates otherwise.

[0035] In the embodiments of the present application, the term "communication network" or "wireless communication network" can refer to a network that complies with any communication standard, such as New Radio (NR), Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), and the like.

[0036] In addition, communication between devices in a communication system can be conducted according to any phase of communication protocol, such as can include, but is not limited to, the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G, New Radio (NR), and the like, and / or other currently known or to be developed communication protocols.

[0037] In embodiments of the present application, the term "network device" refers to, for example, a device that accesses a terminal device to a communication network and provides services for the terminal device in a communication system. The network device can include, but is not limited to, the following devices: an integrated access and backhaul node (IAB-node), a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobile management entity (MME), a gateway, a server, a radio network controller (RNC), a base station controller (BSC), and the like.

[0038] In embodiments of the present application, the term "network device" refers to, for example, a device that accesses a terminal device to a communication network and provides services for the terminal device in a communication system. The network device can include, but is not limited to, the following devices: an integrated access and backhaul node (IAB-node), a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobile management entity (MME), a gateway, a server, a radio network controller (RNC), a base station controller (BSC), and the like.

[0039] In embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. The terminal equipment can be fixed or mobile, and can also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and the like.

[0040] In embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. The terminal equipment can be fixed or mobile, and can also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and the like.

[0041] For another example, in scenarios such as Internet of Things (IoT), a terminal device can also be a machine or an apparatus that performs monitoring or measurement, for example, can include but is not limited to: a Machine Type Communication (MTC) terminal, a vehicle-mounted communication terminal, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, and the like.

[0042] In addition, the term "network side" or "network device side" refers to the side of the network, which can be a certain base station, or can include one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the side of the user or terminal, which can be a certain UE, or can include one or more terminal devices as described above.

[0043] In the following description, the terms "uplink control signal" and "uplink control information (UCI)" or "physical uplink control channel (PUCCH)" can be interchangeable without causing confusion, and the terms "uplink data signal" and "uplink data information" or "physical uplink shared channel (PUSCH)" can be interchangeable;

[0044] The terms "downlink control signal" and "downlink control information (DCI)" or "physical downlink control channel (PDCCH)" can be interchangeable, and the terms "downlink data signal" and "downlink data information" or "physical downlink shared channel (PDSCH)" can be interchangeable.

[0045] In addition, transmitting or receiving a PUSCH can be understood as transmitting or receiving uplink data carried by the PUSCH, transmitting or receiving a PUCCH can be understood as transmitting or receiving uplink information carried by the PUCCH, and transmitting or receiving a PRACH can be understood as transmitting or receiving a preamble carried by the PRACH; the uplink signal can include an uplink data signal and / or an uplink control signal, etc., and can also be referred to as uplink transmission (UL transmission) or uplink information or uplink channel. Transmitting an uplink transmission on an uplink resource can be understood as transmitting the uplink transmission using the uplink resource. Similarly, downlink data / signal / channel / information can be understood accordingly.

[0046] In the embodiments of the present application, the higher layer signaling may, for example, be radio resource control (RRC) signaling; for example, be referred to as an RRC message, for example, include an MIB, system information, a dedicated RRC message; or be referred to as an RRC IE. The higher layer signaling may, for example, also be MAC (Medium Access Control) signaling; or be referred to as a MAC CE. However, the present application is not limited thereto.

[0047] The scenarios of the embodiments of the present application are described below by way of example, but the present application is not limited thereto.

[0048] Layer 3 mobility has evolved over several releases. Conditional handover (CHO) and other conditional mobility procedures (CPAC, SCPAC) have been specified to achieve high robustness by ensuring that the procedure is executed without the need for prior signaling interaction with the source cell. LTM introduced in Rel-18 provides short interruption time but is less robust than conditional layer 3 mobility procedures. In Rel-19, enhancements should be defined so that the system can benefit from both high robustness and short interruption. The objectives of the Rel-19 work item include the following.

[0049] (1) Define support for inter-CU layer 2 mobility (LTM). For example, the following can be included.

[0050] Priority is when DC is not configured, the case where the CU acts as the MN;

[0051] As a secondary priority, support is provided for the case where NR-DC is configured, the CU acts as the SN, and the MN is unchanged;

[0052] As a secondary priority, support the case where NR-DC is configured, CU is MN and SCG is unchanged or released (excluding the case where both MCG and SCG are configured with LTM);

[0053] According to Rel-18 LTM, support subsequent LTM mobility procedures are defined, the goal is to avoid RRC configuration between cell handover;

[0054] Reserve SA3 for consultation in terms of security key processing (Rel-18 intra-CU LTM process is considered as the baseline for adding inter-CU support).

[0055] (2) Measurement-related enhancements to support LTM. For example, the following can be included.

[0056] Measurement-related enhancements apply to intra-CU MCG / SCG LTM and inter-CU MCG / SCG LTM;

[0057] Define the necessary components to support event-triggered L1 measurement reporting;

[0058] Define CSI-RS measurements to support LTM procedures and ensure necessary physical layer operations on CSI-RS-based beam management and / or other LTM pre-candidate cells.

[0059] (3) Define conditional LTM. For example, the following can be included.

[0060] Define the conditions for triggering LTM evaluated by the UE;

[0061] The goal is to support conditional LTM including subsequent LTM;

[0062] Prioritize intra-CU LTM;

[0063] Checkpoint at RAN#105 as a review target. Before this checkpoint, no RAN WG work is started.

[0064] (4) Define RRM requirements related to the above targets as necessary.

[0065] Figure 1 is a schematic diagram of a communication system of the present application, which schematically illustrates the case of taking a terminal device and a network device as an example, as shown in Figure 1, the communication system 100 can include network devices 101, 103 and a terminal device 102 (for simplicity, Figure 1 only takes one terminal device as an example to illustrate).

[0066] In the embodiments of the present application, the terminal device 102 can communicate with one of the network devices 101 and 103 in sequence. Taking the case that the terminal device 102 communicates with the network device 101 as an example, the network device 101 and the terminal device 102 can perform existing services or future implementable services. For example, these services include but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0067] Among them, the terminal device 102 can send data to the network device 101, for example, using a grant (for example, a configured grant) or a grant-free transmission mode. In the grant mode, the network device 101 can receive data sent by one or more terminal devices 102 in the grant, and feed back information to the terminal device 102, such as acknowledgement ACK / non-acknowledgement NACK information, or indicate a new grant to the terminal device 102, and the terminal device 102 can confirm the end of the transmission process according to the feedback information or the new grant, or can perform new data transmission again, or can perform data retransmission. For the grant-free transmission mode, the terminal device can perform new data transmission on the configured grant, or can perform retransmission.

[0068] FIG. 2 shows a schematic diagram of an inter-cell mobility scenario under the same gNB-CU. As shown in FIG. 2, when the terminal moves from the coverage area of one cell to the coverage area of another cell, service cell change needs to be performed at a certain point. Referring to FIG. 2, the gNB-CU can be connected with multiple gNB-DUs. The multiple gNB-DUs can include a gNB-DU (Serving DU) that is currently providing service for the terminal device and a gNB-DU as a backup. The backup gNB-DU can include Candidate DU1 and Candidate DU2. At position A, the Serving DU can provide service; at position B, the Serving DU and the Candidate DU1 can provide service; at position C, the Serving DU can provide service; and at position D, the Candidate DU1 can provide service.

[0069] The primary cell (PCell) of the terminal device at location A is cell 1. When the mobile terminal moves from location A to location B, a serving cell change is performed. The primary cell of the terminal device at location B is cell 2, and the secondary cell (SCell) is cell 1. When the mobile terminal moves from location B to location C, a serving cell change is performed. The primary cell of the terminal device at location C is cell 1. When the mobile terminal moves from location B to location D, a serving cell change is performed. The primary cell of the terminal device at location D is cell 3, and the secondary cell is cell 4.

[0070] Currently, serving cell change is triggered by L3 measurements and completed by RRC signaling, Reconfiguration with Synchronisation for primary cell (PCell) and primary secondary cell (PSCell) change, and release of secondary cells (SCells) as applicable are added. Cell level mobility is triggered by explicit RRC signaling, i.e. handover. The RRC triggered handover mechanism requires the UE to at least reset the MAC entity and re-establish the radio link control (RLC). RRC managed handover is supported with and without PDCP entity re-establishment. For DRBs using RLC AM mode, PDCP can be re-established with security key update or initiate data recovery procedure without key update. For DRBs using RLC UM mode, PDCP can be re-established with security key update or remain unchanged without key update. For SRBs, PDCP can remain unchanged without key update, discard stored PDCP PDUs / SDUs, or be re-established with security key update.

[0071] For the RRC triggered handover mechanism, all cases involve a full L2 (and LI) reset, resulting in longer latency, larger overhead and longer interruption time than beam switch mobility. The goal of layer LI / L2 mobility enhancement is to ensure serving cell change by LI / L2 signaling to reduce latency, overhead and interruption time.

[0072] LTM is a procedure in which the gNB receives L1 measurement reports from the UE, based on which the gNB changes the serving cell of the UE by sending a cell change command via MAC CE. The MAC triggered cell switch mechanism (i.e. LTM cell switch) requires the UE to at least reset the MAC entity. RLC and PDCP handling depends on network configuration.

[0073] The procedure of LTM cell change is shown in Figure 3. The subsequent LTM is implemented by repeating the early synchronization, LTM cell switch execution and LTM cell switch completion steps and not releasing other LTM candidate configurations after each LTM cell switch completion. The basic procedure over the air interface applies to either master cell group (MCG) LTM or secondary cell group (SCG) LTM. As shown in Figure 3, the LTM procedure includes the following steps:

[0074] 1. UE in RRC_CONNECTED sends a MeasurementReport message to gNB, gNB decides to configure LTM and initiates LTM candidate cell configuration;

[0075] 2. gNB sends a Radio Resource Control Reconfiguration (RRCReconfiguration) message including LTM candidate cell configuration to UE;

[0076] 3. UE stores the RRCReconfiguration message of the LTM candidate cell configuration and sends a Radio Resource Control Reconfiguration Complete (RRCReconfigurationComplete) message to gNB;

[0077] 4a. Before receiving the cell command, UE performs downlink (DL) synchronization of the candidate cell;

[0078] 4b. When UE-based TA measurement is configured, UE obtains the TA value of the candidate cell by measurement. Before receiving the cell command, UE performs early TA acquisition with the candidate cell upon network request. This is done by CFRA triggered from PDCCH order of the source cell and subsequent UE sending a preamble to the indicated candidate cell. To minimize the data interruption of the source cell caused by CFRA to the candidate cell, UE does not receive a random access response from the network device for obtaining the TA value, which is indicated in the cell change command. UE does not maintain the TA timer of the candidate cell and relies on the network to ensure the TA validity;

[0079] 5. UE performs L1 measurement on the configured candidate cell and sends L1 measurement report to gNB, where L1 measurement should be performed as long as RRC reconfiguration (i.e., step 2) applies;

[0080] 6. gNB decides to perform cell switch to one target cell and sends a MAC CE including the candidate configuration index of the target cell to trigger cell change. UE switches to the target cell and applies the configuration indicated by the candidate configuration index;

[0081] 7. If the UE does not have a valid TA for the target cell, the UE performs a random access procedure to the target cell;

[0082] 8. The UE completes the LTM cell change procedure by sending an RRCReconfigurationComplete message to the target cell. If in step 7, the UE performed a random access (RA) procedure, the UE considers the LTM cell change execution successfully completed when the random access procedure is successfully completed. For RACH-less LTM, the UE considers the LTM cell change execution successfully completed when the UE determines that the network successfully received its first UL data.

[0083] For random access procedure on LTM candidate cell for early uplink timing advance (UL TA) acquisition, contention-free random access (CFRA) triggered by physical downlink control channel order (PDCCH order) is used. As shown in FIG. 4, the UE sends MSG1 to the cell without listening to the response from the cell. To support UE power ramping, the UE can retransmit MSG1 as indicated by the network.

[0084] For subsequent LTM, multiple times of steps 4a-8 can be performed using the LTM candidate configuration provided in step 2.

[0085] Layer 1 measurement and reporting:

[0086] For layer 1 measurement and reporting, as shown in FIG. 5, the network equipment configures parameters including: RS configuration and reporting configuration.

[0087] RS configuration includes: IE LTM-CSI-ResourceConfig (-> included in LTM-Config) defines a set of resources for one or more LTM candidate configurations, the set of resources includes one or more CSI (wherein IE LTM-CSI-ResourceConfig (included in LTM-Config) defines one or more CSI resources for one or more LTM candidate configurations).

[0088] Reporting configuration includes:

[0089] IE LTM-CSI-ReportConfig is used to configure reporting on the cell containing LTM CSI ReportConfig;

[0090] The following reporting contents can be configured by the network:

[0091] Several cells are reported in one L1 measurement report instance;

[0092] Each cell reports several RSs in one L1 measurement report instance.

[0093] Whether the UE includes the L1 measurement report of the current special cell.

[0094] If the UE is configured with spCellInclusion, the UE will report nrOfReportedRS-PerCell different SSBRI for each of the nrOfReportedCells-1 candidate cells and the current special cell in one reporting instance; otherwise, the UE will report nrOfReportedRS-PerCell different SSBRI for each of the nrOfReportedCells candidate cells in one reporting instance. Wherein, SSBRI k corresponds to the k+1th entry in the associated ltm-CSI-SSB-ResourceList in the corresponding LTM-CSI-SSB-ResourceSet.

[0095] The reporting content includes L1-RSRP. The L1-RSRP value is defined as a 7-bit value in the range of [-140, -44] dBm with 1 dB step size; or using differential L1-RSRP reporting, i.e. the maximum measured value of L1-RSRP is quantized as a 7-bit value in the range of [-140, -44] dBm with 1 dB step size, and the differential L1-RSRP is quantized as a 4-bit value, which is calculated with 2 dB step size and refers to the maximum measured value of L1-RSRP in the same L1-RSRP reporting instance.

[0096] The following reporting mode is selected:

[0097] Periodic: periodicity and offset of transmission of channel state reports (CSI ReportPeriodicityAndOffset), resource for transmission of channel state information on physical uplink control channel (PUCCH-CSI-Resource);

[0098] Semi-persistent on physical uplink control channel (semiPersistentOnPUCCH): CSI ReportPeriodicityAndOffset, PUCCH-CSI-Resource;

[0099] Semi-Persistent on PUCCH: CSI Report Periodicy And Offset, Timing offset Y for semi persistent reporting using PUSCH

[0100] Aperiodic: CSI Report Periodicy And Offset, Timing offset Y for aperiodic reporting

[0101] Layer 3 measurement and reporting:

[0102] In RRC_CONNECTED, the UE measures multiple beams or at least one beam of a cell, and averages the measurement results (power values) of these beams to obtain the cell quality. In this process, the UE is configured to consider a subset of the detected beams. The beams are filtered at two different levels: at the physical layer to obtain the beam quality, and at the RRC level to obtain the cell quality from multiple beams. The cell quality is obtained from beam measurements in the same way for serving and non-serving cells.

[0103] The measurement report can include the measurement results of X best beams, if the UE has been configured by the gNB to do so.

[0104] The corresponding measurement model is shown in Figure 6. In Figure 6, the K beams correspond to the SSB or CSI-RS resources that the gNB configures for L3 mobility and that the UE detects at L1. The following describes each part of Figure 6.

[0105] A: beam specific samples within the physical layer.

[0106] Layer 1 filtering: internal layer 1 filtering of the inputs measured at point A; the exact filtering depends on the implementation.

[0107] A 1: Layer 1 filtering, Layer 1 (L1) reports to Layer 3 (L3) a measurement (i.e. beam-specific measurement).

[0108] Beam Consolidation / Selection: Consolidate beam-specific measurements to obtain a cell quality, standardize the behavior of the beam consolidation or selection and provide the configuration of this module by RRC signaling. The reporting period at B is equal to one measurement period at A 1 . 1 .

[0109] B: A measurement (i.e. cell quality) obtained from the beam-specific measurements reported to Layer 3 after Beam Consolidation / Selection.

[0110] Layer 3 filtering for cell quality: Filtering performed on the measurements provided at point B. Standardize the behavior of the Layer 3 filters and provide the configuration of the layer 3 filters by RRC signaling. The filtering reporting period at C is equal to one measurement period at B.

[0111] C: A measurement after processing in the layer 3 filter. The reporting rate is identical to the reporting rate at point B. This measurement after processing in the layer 3 filter is used as input for one or more evaluations of the reporting criteria.

[0112] Evaluation of reporting criteria: Check if the actual measurement reporting at point D is necessary. This evaluation can be based on more than one flow of measurements at reference point C, e.g. comparing different measurements. For example input C and C 1 This is illustrated by input C and C 1 , the UE reports at least a new measurement result at point C,C 1 C every time it uses C,C 1 . The reporting criteria is evaluated. Standardize the reporting criteria behavior and provide the configuration by RRC signaling.

[0113] D: Send measurement reporting information or measurement reporting message on the radio interface.

[0114] L3 Beam filtering: Filtering performed on the measurements provided at point A 1 A 1 , i.e. beam-specific measurements. Standardize the beam filters behavior and provide the beam filters by RRC signaling. The filtering reporting period at E is equal to one measurement period at A 1 A 1 .

[0115] E: Measurement after processing in the beam filter, e.g. beam-specific measurement. Reporting rate is equal to one measurement period at A 1The reporting rate is identical to the reporting rate at point A 1 ). The measurements after this beam filtering process are used as input to select the X measurements to be reported.

[0116] Beam Selection for beam reporting: the X measurements are selected from the measurements provided at point E. This beam selection behavior is standardized and the configuration of this module is provided by RRC signaling.

[0117] F: Beam measurements are included in the measurement report sent over the radio interface.

[0118] The measurement report has the following characteristics:

[0119] The measurement report includes the measurement identity associated to the measurement configuration that triggered the reporting;

[0120] The cell and beam measurements included in the measurement report are configured by the network;

[0121] The number of non-serving cells to be reported can be limited by network configuration;

[0122] Cells belonging to an exclude-list configured by the network are not used for event evaluation and reporting, in contrast, when an allow-list is configured by the network, only cells belonging to the allow-list are used for event evaluation and reporting;

[0123] The beam measurements to be included in the measurement report are configured by the network, the content of the network configuration includes: only beam identifier, or measurement result and beam identifier, or no beam reporting.

[0124] In the following embodiments, "beam" can be replaced by "reference signal", and "ID" can be replaced by "index" or "identifier". For the MAC CE shown in the figure, one row of the MAC CE represents one byte (8 bits); the MAC CE does not necessarily include all the fields shown in the figure, and can only include part of the fields; the "R" field represents a reserved bit, which takes a value of 0.

[0125] The following is described in conjunction with the embodiments.

[0126] Embodiments of the first aspect

[0127] Embodiments of the present application provide a measurement method. The method is applied to a terminal device, and FIG. 7 is a schematic diagram of the measurement method of an embodiment of the present application. As shown in FIG. 7, the method comprises:

[0128] 701. The terminal device performs event evaluation based on the beams of the serving cell and / or the beams of the candidate cell.

[0129] 702. When the first event-based layer 1 measurement reporting is triggered, the terminal device sends a first medium access control layer control unit (first MAC CE) to the network device, wherein the first MAC CE comprises at least one of the following: reference signal information and event information.

[0130] In some embodiments, the serving cell comprises a special cell and / or a secondary cell. In some implementations, the serving cell is a special cell in a cell group. For example, a PCell in an MCG or a PSCell in an SCG. In some implementations, the serving cell comprises a special cell and a secondary cell.

[0131] In some embodiments, the cell that the terminal device can switch to in the LTM is referred to as a candidate cell. The candidate cell can be a serving cell or a non-serving cell. The terminal device can be provided with a candidate cell configuration to obtain the candidate cell.

[0132] In some embodiments, the beams of the serving cell and / or the beams of the candidate cell can be configured by the network device and / or obtained by the terminal device from the transmission configuration indication state (TCI state). The terminal device measures the beams of the serving cell and / or the beams of the candidate cell, and performs event evaluation based on the measurement results.

[0133] In some embodiments, the event is used to trigger layer 1 measurement reporting. For the event-triggered layer 1 measurement reporting, the LTM event based on the beam-specific quality of the serving cell and / or the candidate cell can be referred to as the L1 LTM measurement event. The event can comprise at least one of the following L1 LTM measurement events:

[0134] Event LTM1: The beam (Mn) of the serving cell becomes better than an absolute threshold;

[0135] Event LTM2: The beam of the serving cell becomes worse than an absolute threshold;

[0136] Event LTM3: The beam (Ms) of the candidate cell becomes better than the beam (Mn) of the serving cell by an offset;

[0137] Event LTM4: the beam of the candidate cell becomes better than an absolute threshold;

[0138] Event LTM5: the beam of the serving cell becomes worse than an absolute threshold 1 and the beam of the candidate cell becomes better than an absolute threshold 2.

[0139] An event can correspond to or be associated with an event identity. An event identity is used to identify or indicate an event. An event identity includes an index or ID of the event.

[0140] In some embodiments, the terminal device can receive first configuration information. The first configuration information is included in a RRC message / IE, and the first configuration information can be from a network device. The first configuration information can include: reference signal configuration information, and / or, event configuration information.

[0141] In some embodiments, the reference signal configuration information is used to configure a reference signal resource set (group) for L1 measurement. The reference signal includes SSB and / or CSI-RS, and the reference signal configuration information includes a resource configuration ID and a resource list. The reference signal resource set can be configured by a new version of LTM-CSI-ResourceConfig parameter, e.g., LTM-CSI-ResourceConfig-r19, in which case if LTM-CSI-ResourceConfig-r19 is configured / included, LTM-CSI-ResourceConfig-r18 is ignored; or the reference signal resource set can be configured by a parameter different from LTM-CSI-ResourceConfig. In either method, the parameter is included under LTM-Config. The parameter includes reference signal (SSB and / or CSI-RS) information and candidate cell information (e.g., LTM candidate ID). For example, the parameter includes two lists / sets, the first list / set includes each parameter / value as one of SSB or CSI-RS (e.g., using choose structure), and the second list / set includes each parameter / value as an LTM candidate ID, the first parameter / value of the first list / set corresponds to the first parameter / value of the second list / set, or in other words, the first parameter / value of the first list / set and the first parameter / value of the second list / set determine an RS of a candidate cell / LTM candidate.

[0142] In some embodiments, the event configuration information can comprise at least one of the following: identification information of the one or more second events, type information of the one or more second events, threshold information of the one or more second events, priority information. The identification information can comprise an ID or an index of the event. The event type can be selected from Event LTM2, Event LTM3, Event LTM4, Event LTM5.

[0143] Optionally, the first configuration information (or event configuration information) can further comprise at least one of the following: information indicating whether to trigger L1 measurement reporting when the leaving condition is met, information indicating whether to perform periodic reporting after event-triggered L1 measurement reporting, parameters of periodic reporting after event-triggered L1 measurement reporting.

[0144] For example, the information indicating whether to trigger L1 measurement reporting when the leaving condition is met can be 1-bit indication information, when the first configuration information comprises the indication information or the bit value of the indication information is a first value, it indicates to trigger L1 measurement reporting when the leaving condition is met, when the first configuration information does not comprise the indication information or the bit value of the indication information is a second value, it indicates not to trigger L1 measurement reporting when the leaving condition is met.

[0145] For example, the information indicating whether to perform periodic reporting after event-triggered L1 measurement reporting can be 1-bit indication information, when the first configuration information comprises the indication information or the bit value of the indication information is a first value, it indicates to perform periodic reporting after event-triggered L1 measurement reporting, when the first configuration information does not comprise the indication information or the bit value of the indication information is a second value, it indicates not to perform periodic reporting after event-triggered L1 measurement reporting.

[0146] For example, when periodic reporting after event-triggered L1 measurement reporting is performed, the first configuration information can further comprise parameters of periodic reporting after event-triggered L1 measurement reporting. The parameters can comprise reporting period and / or reporting quantity.

[0147] Optionally, the first configuration information can further comprise L1 measurement configuration, the L1 measurement configuration comprises at least a first index, used to associate one reference signal configuration and one event configuration, for example, the first index comprises an event identification (index / ID) and a reference signal identification (SSB index / CSI-RS resource ID / CSI resource set ID), to represent the association between the event and the reference signal.

[0148] In some embodiments, the terminal device can receive first trigger information. The first trigger information can come from the network device. The first trigger information is used to activate or indicate a reference signal, and / or, activate or indicate an event. The first trigger information can be carried by a MAC CE or a DCI / PDCCH. For example, a reference signal or an event is activated by a MAC CE, and / or a reference signal or an event is indicated (one of the activated reference signals or events) by a DCI.

[0149] In some embodiments, the terminal device can receive at least one of the first configuration information and the first trigger information, for example, only receive the first configuration information or only receive the first trigger information, or receive the first configuration information and the first trigger information. The reference signal or the event activated or indicated by the first trigger information can be a reference signal in the reference signal set configured by the first configuration information or an event in the second event.

[0150] In some embodiments, the second event configured or activated or indicated by the above-mentioned first configuration information and / or the first trigger information is a trigger event that triggers the L1 measurement report using the first MAC CE for event triggering, that is, when the second event configured or activated or indicated by the above-mentioned first configuration information and / or the first trigger information is met, the L1 measurement report using the first MAC CE for event triggering is generated. The second event configured or activated or indicated by the above-mentioned first configuration information and / or the first trigger information is one or more events. The first MAC CE can be used for per-event L1 measurement reporting, or can be used for L1 measurement reporting of multiple events, which will be described below.

[0151] In some embodiments, the terminal device can send a first medium access control layer control element (first MAC CE) to the network device when the layer 1 measurement report based on the first event is triggered. The first event is an event in the second event, and the first event can also be regarded as an event triggering the first MAC CE. The layer 1 measurement report based on the first event is triggered, which includes meeting the leaving condition of the first event or meeting the entering condition of the first event, which can be determined according to the first configuration information. When the first configuration information indicates that the leaving condition is met, the L1 measurement report is triggered. When the leaving condition of the first event is met, or when the entering condition of the first event is met, the first MAC CE can be triggered. Otherwise, when the first configuration information indicates that the leaving condition is met, the L1 measurement report is not triggered. When the entering condition of the first event is met, the first MAC CE is triggered. This is only an example, and the embodiments of the present application are not limited thereto.

[0152] In some embodiments, the leaving condition of the first event is satisfied includes: any configured reference signal or all configured reference signals satisfy the leaving condition of the first event, or any triggered reference signal or all triggered reference signals satisfy the leaving condition of the first event. That is, any configured reference signal or all configured reference signals satisfy the leaving condition of the first event, trigger the first MAC CE, or any triggered reference signal or all triggered reference signals satisfy the leaving condition of the first event, trigger the first MAC CE.

[0153] For example, the entering condition for LTM1 is (entering condition): Mn>threshold, the leaving condition is (leaving condition): Mn<threshold, the entering condition for LTM3 is (entering condition): Ms>Mn+offset, and the leaving condition is (leaving condition): Ms<Mn+offset. Here, no longer one by one.

[0154] In some embodiments, the first MAC CE can include at least one of: event information, reference signal (RS) information. Different first MAC CEs can be identified or identified by (e)LCID.

[0155] Regarding event information:

[0156] In some embodiments, the event information in the first MAC CE can include first indication information. The first indication information is used to indicate the third event. The first indication information can indicate one or more third events. The third event is an event that meets the condition and is included in the first MAC CE.

[0157] As an example, the first indication information indicates one third event, which is the first event. This example can be applied to at least one of the following application scenarios: 1) the first configuration information configures one second event, and the first event is the second event; 2) the first configuration information configures multiple second events, including the first event, and the first trigger information activates or indicates one of the events (i.e., the first event) for triggering layer 1 measurement reporting; 3) there is only one first event that meets the condition (there are multiple events for L1 measurement reporting using MAC CE event triggering); 4) there are multiple events that meet the condition, and the third event is one of them; 5) the first MAC CE can be used for per-event L1 measurement reporting, that is, different events trigger different first MAC CEs.

[0158] In the above scenarios 1) or 2), the first MAC CE can also not include event information.

[0159] In the above scenario 4), the third event can be the first triggered event among the multiple events satisfying the condition, or can be the event with the highest priority among the multiple events satisfying the condition, or can be the event with the smallest event identifier among the multiple events satisfying the condition, or can be the event selected based on terminal device implementation among the multiple events satisfying the condition. The embodiments of the present application are not limited in this regard.

[0160] For example, for 4) and 5), when one event (e.g., the first event) satisfies the condition, triggers the L1 measurement reporting, and between the measurement reporting trigger and the available resource, another event satisfies the condition, a first MAC CE is generated and sent, the first MAC CE including information of a third event, the third event being the first event or the third event being the other event; or two first MAC CEs are generated and sent, the two first MAC CEs respectively including information of the first event and information of the other event.

[0161] As an example, the first indication information indicates multiple third events. The multiple third events include at least the first event triggering the first MAC CE. The arrangement order of the multiple third events includes (1) or (2): (1) first including the first event, and then arranging the other third events according to the following arrangement order: the order of event triggering, the order of priority, the ascending order of event identifier, the order based on terminal device implementation; (2) arranging all third events according to the following arrangement order: the order of event triggering, the order of priority, the ascending order of event identifier, the order based on terminal device implementation.

[0162] Regarding the reference signal information:

[0163] In some embodiments, the reference signal information in the first MAC CE can include information of a first reference signal, and / or information of a second reference signal. The first reference signal is a reference signal satisfying the event triggering condition. The first reference signal can also be understood as a reference signal corresponding to an event included in the first MAC CE. The second reference signal is a reference signal of a candidate cell to which the first reference signal belongs and which satisfies the event triggering condition. The second reference signal can also be understood as a reference signal of a candidate cell to which a reference signal corresponding to an event included in the first MAC CE belongs.

[0164] In some embodiments, the reference signal information in the first MAC CE can include second indication information. The second indication information is used to indicate one or more first reference signals.

[0165] As an example, the second indication information indicates one first reference signal. The first reference signal can be the first reference signal satisfying the condition, or can be the latest reference signal satisfying the condition, or can be the reference signal with the best quality, or can be the reference signal with the smallest sequence number, or can be the reference signal selected based on terminal device implementation, and the embodiments of the present application are not limited in this regard.

[0166] As another example, the second indication information indicates a plurality of first reference signals. The arrangement order of the plurality of first reference signals includes one of the following: the order of satisfying the condition, the order of quality, the ascending order of sequence number, and the order based on terminal device implementation. For the order of satisfying the condition, the latest one satisfying the condition can be included first, or the first one satisfying the condition can be included first, and the embodiments of the present application are not limited in this regard.

[0167] In some embodiments, the reference signal information in the first MAC CE can include second indication information. The second indication information is used to indicate a second reference signal. The arrangement order of the second reference signal can include at least one of the following: the order of quality of the second reference signal, the ascending order of ID or index or appearance order of the second reference signal in the configuration.

[0168] In some embodiments, the second reference signal indicated by the reference signal information can be a second reference signal satisfying at least one of the following conditions, for example: the reference signal quality can be better than a threshold, and the number of the second reference signal is not greater than a maximum number configured. The maximum number can be the maximum number of RSs included in a first MAC CE, or can be the maximum number of RSs reported by a cell. The number of reference signals that can be reported by a cell can be configured by a network device.

[0169] In some embodiments, the first MAC CE can further include L1 measurement result information, and the measurement result is the measurement result corresponding to the event (for example, included in the first MAC CE) satisfying the condition. Possible measurement results include at least one of the following information: Reference Singal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), Reference Singal Strength Indicator (RSSI), Signal to Interference plus Noise Ratio (SINR) or other signal quality information. The measurement result is a layer 1 measurement result, and the measurement result information can be the value of the measurement result of a predetermined bit, or can be the quantized value of the measurement result.

[0170] In some embodiments, the first MAC CE can further comprise reference signal and / or measurement result information of the serving cell.

[0171] In some embodiments, the first MAC CE can further comprise third indication information, which is used to indicate that the first MAC CE is triggered by the entering condition of the event or is triggered by the leaving condition of the event, and the third indication information is associated with the event information or the first MAC CE. How to determine whether the entering condition or the leaving condition is met is described above and will not be repeated here.

[0172] For example, the third indication information can be represented by 1 bit, and the bit value of the bit is used to represent the entering condition and / or the leaving condition of the event. When the first MAC CE comprises the third indication information or the bit value of the bit is a first value, it indicates that the first MAC CE is triggered by the leaving condition of the event. When the first MAC CE does not comprise the third indication information or comprises the third indication information but the bit value of the bit is a second value, it indicates that the first MAC CE is triggered by the entering condition of the event. For example, the first value can be 1, and the second value can be 0.

[0173] In some embodiments, when the first configuration information indicates that the leaving condition is met, the first MAC CE needs to indicate, by the third indication information, that the first MAC CE is triggered by the entering condition of the event or is triggered by the leaving condition of the event. For example, the third indication information has a second value or does not comprise the third indication information, indicating that the first MAC CE is triggered by the entering condition of the event, and comprises the third indication information and has a first value, indicating that the first MAC CE is triggered by the leaving condition of the event. When the first configuration information does not indicate that the leaving condition is met, the first MAC CE does not need to comprise the third indication information. The network device can know that the report is triggered by the entering condition of the event.

[0174] In some embodiments, (for the event information configured to trigger the report when the leaving condition is met), the method further comprises: the terminal device maintaining a per-event variable, which is used to trigger a beam list; when a beam meets the entering condition of the event, the beam is added to the list of the event; when a beam in the list meets the leaving condition of the event, the beam is removed from the list of the event.

[0175] In some embodiments, optionally, the first MAC CE can further comprise: fourth indication information, used for indicating information of event-triggered initial L1 measurement reporting, or used for indicating information of event-triggered periodic or subsequent L1 measurement reporting. The fourth indication information can be a field of the first MAC CE, or be included in a subheader of the first MAC CE.

[0176] For example, the fourth indication information can comprise a bit value of one bit. The bit value of a first value is used to represent (the first MAC CE is used for) event-triggered periodic or subsequent L1 measurement reporting. The bit value of a second value is used to represent (the first MAC CE is used for) event-triggered initial L1 measurement reporting. For example, the first value can be 1, and the second value can be 0.

[0177] In some embodiments, when the fourth indication information indicates information of event-triggered periodic L1 measurement reporting, the terminal device can end the periodic reporting until a leaving condition is met (how to determine that the leaving condition is met is described above, and will not be described here), or can end the periodic reporting until a configured reporting number is reached, or until there is no triggered reference signal. Or can perform subsequent reporting when the list of triggered reference signals changes.

[0178] In some embodiments, the first MAC CE uses a certain format (hereinafter referred to as the first format), for example, the first format is: long format or short format or truncated format, etc.

[0179] In some embodiments, in the first format, for example, in a short first MAC CE (Short MAC CE), the first indication information about the event information can be an event identifier (configured by the first configuration information), or can comprise an event identifier and candidate cell information, or can comprise an event identifier and candidate configuration information, or can comprise the aforementioned first index.

[0180] Alternatively, in a first format, e.g., a long first MAC CE or a truncated long first MAC CE, the first indication information about event information can include a first bitmap of N (N is an integer greater than or equal to 1) bytes. Each bit (also referred to as a bit position) of the first bitmap corresponds to an event, respectively. A bit value of a bit is used to indicate whether the event corresponding to the bit is the third event. The event corresponding to a bit with a first value is the third event, and the related L1 measurement report is included in the first MAC CE. Optionally, the first value can be 1. The event corresponding to a bit with a second value is not the third event, and the related L1 measurement report is not included in the first MAC CE. Optionally, the second value can be 0. For example, the first bitmap can have 1 byte. From the low bit, each bit of the first bitmap corresponds to event identifiers 0, 1, 2, 3, 4, 5, 6, and 7, respectively. Then, the first bitmap 10111001 can indicate that events with event identifiers 0, 3, 4, 5, and 7 are the third event, and the related L1 measurement report of events with event identifiers 0, 3, 4, 5, and 7 is included in the first MAC CE (in the following bytes).

[0181] In some embodiments, in a first format, e.g., a short first MAC CE, the reference signal information about reference signal information, e.g., the reference signal can be an SSB. The reference signal information can be an SSB index, or can include an SSB index and candidate configuration information, or can include a sequence number of the occurrence of the RS signal in a resource set and an ID of the resource set, or can be an SSBRI. For another example, the reference signal can be a CSI-RS (Channel State Information Reference Signal). The reference signal information can be an ID of a CSI-RS resource, or can include an ID of a CSI-RS resource and candidate configuration information.

[0182] Alternatively, in the first format, e.g. long first MAC CE or truncated (long) first MAC CE, the information of the reference signals can comprise M (M is an integer greater than or equal to 1) bytes of second bitmap. Each bit of the second bitmap corresponds to one reference signal respectively. The bit value of the bit is used to indicate whether the reference signal corresponding to the bit is one of the following: the first reference signal, the second reference signal, the reference signal whose L1 measurement result is included in the first MAC CE. Or each bit indicates whether the L1 measurement result of the corresponding reference signal is wrapped in the first MAC CE. For example, the bit corresponding to the bit value of the first value is one of the following: the first reference signal, the second reference signal, the reference signal whose L1 measurement result (L1-RSRP) is included in the first MAC CE. Optionally, the first value can be 1. The bit corresponding to the bit value of the second value is not the first reference signal, or not the second reference signal, or not the reference signal whose L1 measurement result is included in the first MAC CE. Optionally, the second value can be 0. For example, the second bitmap can have one byte. From the low bit, each bit of the second bitmap corresponds to reference signal identifier 0, 1, 2, 3, 4, 5, 6, 7 respectively. The second bitmap 10111001 can indicate that the L1 measurement results of the reference signals with reference signal identifiers 0, 3, 4, 5, and 7 are included in the first MAC CE (in the next byte).

[0183] For example, in the first format, e.g. short first MAC CE, x (x can be 1, 2, 3 or 4) event information, and corresponding x reference signal information, and L1 measurement results (e.g. L1-RSRP) of the x reference signals are included. They can be arranged in the order of x event information, x reference signal information and L1 measurement results of x reference signals, or arranged in x groups in the order of one event information, corresponding reference signal information and L1 measurement result thereof;

[0184] Alternatively, in the short first MAC CE, y (y can be 1, 2, 3 or 4) reference signal information and corresponding L1 measurement results are included first, and then the event information satisfied by the reference signal is included.

[0185] For another example, in the first format, e.g. long first MAC CE, p-byte bitmap (p can be 1, 2, 3 or 4) indicating event information, k-byte bitmap (k can be 1, 2, 3 or 4) indicating reference signal information, and corresponding L1 measurement results (e.g. L1-RSRP and / or L1-SINR) of the reference signals are included.

[0186] Or in the long first MAC CE, z events (z can be 1, 2, 3, or 4) information is included, wherein the first event information can be included first, the corresponding q byte bitmap (q can be 1, 2, 3, or 4) of the event information indicates the reference signal information, and the corresponding L1 measurement result (such as L1-RSRP and / or L1-SINR) of the reference signal is included, and the second event information is included, and the above content is repeated, until the corresponding L1 measurement result (such as L1-RSRP and / or L1-SINR) of the corresponding reference signal of the zth event information is included.

[0187] The above only describes the steps or processes related to the present application, but the present application is not limited thereto. The method of the embodiments of the present application can also include other steps or processes, and the specific content of these steps or processes can be referred to the related technology.

[0188] The above embodiments only exemplarily describe the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can be made on the basis of the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0189] Through the above embodiments, when the layer 1 measurement based on the first event is triggered, the terminal device can send a first medium access control layer control unit (first MAC CE) to the network device. The first MAC CE includes at least one of the following: reference signal information and event information. In this way, the network device can understand the content reported by the terminal device, thereby facilitating the network device to make corresponding decisions based on the content.

[0190] Embodiments of the second aspect

[0191] The embodiments of the present application provide a measurement method, which is applied to a network device.

[0192] FIG. 8 is a schematic diagram of a measurement method according to an embodiment of the present application. As shown in FIG. 8, the method includes:

[0193] 801, the network device receives the first medium access control layer control unit (first MAC CE) sent by the terminal device when the layer 1 measurement based on the first event is triggered, and the first MAC CE includes at least one of the following: reference signal information and event information.

[0194] In some embodiments, the evaluation of the event is based on a beam of a serving cell and / or a beam of a candidate cell, which is configured by the network device and / or obtained by the terminal device from a transmission configuration indication state (TCI state).

[0195] In some embodiments, the first MAC CE includes at least the event information and the reference signal. For example, the first MAC CE can include only the event information and the reference signal information. For another example, the first MAC CE can include other information in addition to the event information and the reference signal information. For example, the first MAC CE further includes one or more of the L1 measurement result information, the third indication information, and the fourth indication information. Details can be referred to the embodiments of the first aspect, which will not be repeated here.

[0196] In some embodiments, the network device can further send, to the terminal device, first configuration information. The first configuration information can include reference signal configuration information, and / or event configuration information.

[0197] In some embodiments, the network device can further send, to the terminal device, first trigger information. The first trigger information is used to activate or indicate the reference signal, and / or activate or indicate the event. The first trigger information can be carried by a MAC CE or a DCI.

[0198] The implementation of 801 can be referred to the embodiments of the first aspect, which will not be repeated here.

[0199] The above only describes the steps or processes related to the present application, but the present application is not limited thereto. The method of the embodiments of the present application can further include other steps or processes. For specific content of these steps or processes, please refer to the related technology.

[0200] The above embodiments only exemplarily describe the embodiments of the present application, but the present application is not limited thereto, and can be appropriately modified on the basis of the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0201] Through the above embodiments, the network device can receive a first medium access control layer control element (first MAC CE) sent by the terminal device when a layer 1 measurement based on a first event is triggered to report, the first MAC CE including at least one of reference signal information and event information. Thereby, the network device understands the content reported by the terminal device, so that corresponding decisions can be facilitated based on the reported content.

[0202] Embodiments of the third aspect

[0203] The embodiments of the present application provide a measurement device. The measurement device can be applied to a terminal device. The measurement device can correspond to the method of the first aspect embodiment. FIG. 9 is a schematic diagram of a measurement device in an embodiment of the present application. As shown in FIG. 9, the measurement device 900 can include:

[0204] The processor 901 performs event evaluation based on a serving cell beam and / or a candidate cell beam;

[0205] The transmitter 902 transmits, to the network device, a first medium access control layer control element (first MAC CE) including at least one of reference signal information and event information, when a first event-based layer 1 measurement report triggering is triggered.

[0206] In some embodiments, the measurement apparatus 900 can further include a receiver (not shown). The receiver receives first configuration information. The first configuration information can include reference signal configuration information for configuring a measurement reference signal set and / or event configuration information. The event configuration information can include identification information of one or more second events, and / or type information of the one or more second events, and / or threshold information of the one or more second events, and / or priority information. The one or more second events at least include the first event.

[0207] In some embodiments, the measurement apparatus 900 can further include a receiver. The receiver receives first trigger information. The first trigger information is used to activate or indicate a reference signal, and / or activate or indicate an event.

[0208] The implementation of the processor, the transmitter, and the receiver can refer to the embodiments of the first aspect, which will not be described here.

[0209] In some embodiments, the event information can include first indication information indicating a third event. The third event can be the first event, or can be a first triggered event among multiple events satisfying a condition, or can be an event with the highest priority among multiple events satisfying a condition, or can be an event with the smallest event identification among multiple events satisfying a condition, or can be an event selected based on terminal device implementation among multiple events satisfying a condition.

[0210] In some embodiments, the event information can include first indication information indicating multiple third events. The multiple third events at least include the first event. The arrangement order of the multiple third events or other events in the multiple third events except the first event can be a triggering order of the events, or a high-low order of the priorities, or an ascending order of the event identifications, or an order based on terminal device implementation.

[0211] In some embodiments, the reference signal information can include information of a first reference signal satisfying an event triggering condition, and / or information of a second reference signal belonging to a candidate cell of the first reference signal satisfying the event triggering condition.

[0212] In some embodiments, the first MAC CE can further include L1 measurement result information.

[0213] In some embodiments, the first MAC CE can further include third indication information.

[0214] The third indication information is used to indicate that the first MAC CE is triggered by the entering condition of the event or the first MAC CE is triggered by the leaving condition of the event.

[0215] In some embodiments, the first MAC CE can further include fourth indication information indicating initial L1 measurement reporting triggered by the event or periodic L1 measurement reporting triggered by the event.

[0216] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The measurement device 900 of the embodiments of the present application can further include other components or modules, and the specific content of these components or modules can be referred to the related art.

[0217] In addition, for the sake of simplicity, only the connection relationship or signal path between the components or modules is exemplarily shown in FIG. 9, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above components or modules can be realized by hardware facilities such as processor, memory, transmitter, receiver, etc.; the present application is not limited thereto.

[0218] The above embodiments only exemplarily describe the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can be made on the basis of the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0219] Embodiments of the fourth aspect

[0220] The embodiments of the present application provide a measurement device, which is applied to a network device. The measurement device corresponds to the method of the second aspect.

[0221] FIG. 10 is a schematic diagram of a measurement device according to an embodiment of the present application. As shown in FIG. 10, the measurement device 1000 can include:

[0222] a receiver 1001 configured to receive a first medium access control layer control element (first MAC CE) sent by the terminal device when a layer 1 measurement reporting based on a first event is triggered, the first MAC CE including at least one of the following: reference signal information and event information.

[0223] In some embodiments, the measurement apparatus 1000 can further include a transmitter (not shown). The transmitter transmits first configuration information to the terminal device. The first configuration information can include reference signal configuration information used for configuring a measurement reference signal set and / or event configuration information. The event configuration information can include identification information of one or more second events, and / or type information of the one or more second events, and / or threshold information of the one or more second events, and / or priority information. The one or more second events at least include the first event.

[0224] In some embodiments, the measurement apparatus 1000 can further include a transmitter. The transmitter transmits first trigger information to the terminal device. The first trigger information is used for activating or indicating a reference signal, and / or activating or indicating an event.

[0225] The implementation of the receiver and the transmitter can refer to the embodiments of the second aspect, which will not be repeated here.

[0226] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The measurement apparatus 1000 of the embodiments of the present application can further include other components or modules, and the specific content of these components or modules can refer to related technologies.

[0227] In addition, for the sake of simplicity, only the connection relationship or signal path between the components or modules is exemplarily shown in FIG. 10, but those skilled in the art should understand that various related technologies such as bus connection can be used. The above components or modules can be realized by hardware facilities such as processors, memories, transmitters, receivers, etc.; the present application is not limited thereto.

[0228] The above embodiments only exemplarily describe the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can be made on the basis of the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0229] Embodiments of the fifth aspect

[0230] The embodiments of the present application provide a communication system, which can include a network device and a terminal device.

[0231] Referring to FIG. 1, the terminal device includes the measurement apparatus of the third aspect, and the network device includes the measurement apparatus of the fourth aspect, and the same content as the first to fourth aspects will not be repeated.

[0232] The embodiments of the present application further provide a terminal device.

[0233] FIG. 11 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in FIG. 11, the terminal device 1100 can include a processor 1110 and a memory 1120. The memory 1120 stores data and programs and is coupled to the processor 1110. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace this structure to implement telecommunications functions or other functions.

[0234] For example, the processor 1110 can be configured to execute programs to implement the method according to the embodiments of the first aspect.

[0235] As shown in FIG. 11, the terminal device 1100 can further include a communication module 1130, an input unit 1140, a display 1150, and a power supply 1160. The functions of the above-mentioned components are similar to those of the prior art, and will not be described here. It is worth noting that the terminal device 1100 does not necessarily include all the components shown in FIG. 11, and the above-mentioned components are not essential. In addition, the terminal device 1100 can also include components not shown in FIG. 11, which can be referred to the prior art.

[0236] The embodiments of the present application also provide a network device.

[0237] FIG. 12 is a schematic diagram of a network device according to an embodiment of the present application. As shown in FIG. 12, the network device 1200 can include a processor 1201 (for example, a central processing unit CPU) and a memory 1202. The memory 1202 is coupled to the processor 1201. The memory 1202 can store various data; in addition, it also stores programs 1203 for information processing, and executes the programs 1203 under the control of the processor 1201.

[0238] For example, the processor 1201 can be configured to execute programs to implement the method according to the embodiments of the second aspect.

[0239] In addition, as shown in FIG. 12, the device 1200 can further include a communication module 1204, etc. The functions of the above-mentioned components are similar to those of the prior art, and will not be described here. It is worth noting that the device 1200 does not necessarily include all the components shown in FIG. 12; in addition, the device 1200 can also include components not shown in FIG. 12, which can be referred to the prior art.

[0240] It is worth noting that the device does not necessarily include all the components shown in the figure, and the above-mentioned components are not essential; in addition, the device can also include components not shown in the figure, which can be referred to the prior art.

[0241] The embodiments of the present application also provide a computer program, which, when executed in a terminal device, causes the terminal device to perform the method in the embodiments of the first aspect.

[0242] The embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program causes the terminal device to execute the method in the first aspect.

[0243] The embodiment of the present application further provides a computer program, wherein the program causes the network device to execute the method in the second aspect when the program is executed in the network device.

[0244] The embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program causes the network device to execute the method in the second aspect.

[0245] The apparatus and method described above can be realized by hardware, or by hardware in combination with software. The present application relates to a computer readable program, which, when executed by a logic component, enables the logic component to realize the apparatus or constituent components described above, or enables the logic component to realize the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0246] The method / apparatus described in combination with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figures and / or a combination of one or more of the functional block diagrams can correspond to each software module of a computer program flow, or to each hardware module. These software modules can correspond to each step shown in the figures, respectively. These hardware modules can be realized by, for example, fixing the software modules with a field programmable gate array (FPGA).

[0247] The software modules can be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium can be an integral part of the processor. The processor and the storage medium can be located in an ASIC. The software modules can be stored in the memory of the mobile terminal, or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a MEGA-SIM card or a large-capacity flash memory device, the software modules can be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0248] One or more of the functional blocks described in the figures and / or one or more combinations of the functional blocks can be implemented as a general- purpose processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any appropriate combination of the foregoing, designed to perform the functions described herein for the functional blocks. One or more of the functional blocks described in the figures and / or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0249] The application has been described in relation to particular embodiments, but those skilled in the art will understand that the description is illustrative only and is not intended to limit the scope of the application. Various modifications and changes can be made by those skilled in the art to the particular embodiments without departing from the scope of the application as described in the claims.

[0250] With respect to the embodiments including the above embodiments, the following supplementary notes are also disclosed:

[0251] 1. A measurement method configured to a terminal device, wherein the method comprises:

[0252] the terminal device performs event evaluation based on a serving cell beam and / or a candidate cell beam;

[0253] when a layer 1 measurement report based on a first event is triggered, the terminal device sends a first medium access control layer control element (first MAC CE) to a network device, the first MAC CE comprising at least one of: reference signal information and event information.

[0254] 2. The method of supplementary note 1, wherein the first MAC CE further comprises L1 measurement result information.

[0255] 3. A measurement method configured to a network device, wherein the method comprises:

[0256] the network device receives a first medium access control layer control element (first MAC CE) sent by a terminal device when a layer 1 measurement report based on a first event is triggered, the first MAC CE comprising at least one of: reference signal information and event information.

[0257] 4. The method of supplementary note 3, wherein the method further comprises:

[0258] The network device sends first configuration information to the terminal device, the first configuration information comprising: reference signal configuration information for configuring a measurement reference signal set, and / or event configuration information, the event configuration information comprising identification information of one or more second events, and / or type information of one or more second events, and / or threshold information of one or more second events, and / or priority information; the one or more second events at least comprising the first event.

[0259] 5. The method of clause 3, wherein the method further comprises:

[0260] The network device sends first trigger information to the terminal device, the first trigger information being used to activate or indicate a reference signal, and / or to activate or indicate an event.

[0261] 6. A terminal device comprising a memory and a processor, the memory storing a computer program, the processor being configured to execute the computer program to implement the method of clause 1 or 2.

[0262] 7. A network device comprising a memory and a processor, the memory storing a computer program, the processor being configured to execute the computer program to implement the method of clause 3 or 4 or 5.

[0263] 8. A communication system having a terminal device of clause 6 and / or a network device of clause 7.

Claims

1. A measuring device configured to a terminal device, wherein, The device comprises: a processor performing event evaluation based on a serving cell beam and / or a candidate cell beam; a transmitter, when a first event-based layer 1 measurement reporting is triggered, the terminal device sends a first medium access control layer control unit (first MAC CE) to the network device, the first MAC CE includes at least one of the following: reference signal information and event information.

2. The apparatus of claim 1, wherein, The device further comprises: a receiver receiving first configuration information, the first configuration information including: reference signal configuration information for configuring a set of measurement reference signals, and / or event configuration information, the event configuration information including identification information of one or more second events, and / or type information of one or more second events, and / or threshold information of one or more second events, and / or priority information; the one or more second events at least include the first event.

3. The apparatus of claim 2, wherein, The event configuration information further comprises: information indicating whether to trigger L1 measurement reporting when the leaving condition is met, and / or indicating whether to perform periodic reporting after event-triggered L1 measurement reporting, and / or the reporting period and / or the number of periodic reporting after event-triggered L1 measurement reporting.

4. The apparatus of claim 1, wherein, The device further comprises: a receiver receiving first trigger information, the first trigger information being used to activate or indicate a reference signal, and / or to activate or indicate an event.

5. The apparatus of claim 1, wherein, The event information includes first indication information indicating one third event, the third event being the first event, or the first triggered event among multiple events meeting the condition, or the event with the highest priority among multiple events meeting the condition, or the event with the smallest event identifier among multiple events meeting the condition, or the event selected based on terminal device implementation among multiple events meeting the condition; Or, The event information includes first indication information indicating multiple third events, the multiple third events at least including the first event, and the arrangement order of the multiple third events or other events in the multiple third events excluding the first event is the order of event triggering, or the order of priority, or the ascending order of event identifier, or the order based on terminal device implementation.

6. The apparatus of claim 5, wherein, The first indication information includes an event identifier, or an event identifier and candidate cell or candidate configuration information, or a first index associated with an event and a reference signal.

7. The apparatus of claim 5, wherein, The first indication information includes a first bit bitmap, each bit of the first bit bitmap corresponding to an event, and the event corresponding to the bit with a first value is the third event.

8. The apparatus of claim 1, wherein, The reference signal information includes information of a first reference signal meeting the event triggering condition, and / or information of a second reference signal belonging to a candidate cell of the first reference signal meeting the event triggering condition.

9. The apparatus of claim 8, wherein, The reference signal information includes second indication information indicating one first reference signal, the one first reference signal being the first or the latest reference signal meeting the condition, or the reference signal with the best quality or the reference signal with the smallest sequence number, or the reference signal selected based on terminal device implementation. Alternatively, the reference signal information includes second indication information indicating a plurality of first reference signals, and the plurality of first reference signals are arranged in a sequence that meets a condition, or in a sequence of quality, or in a sequence of ascending order of serial numbers, or are sorted based on terminal device implementation.

10. The apparatus of claim 8, wherein, The second reference signal is sorted in a sequence of quality of the second reference signal, or in a sequence of ID or index of the second reference signal, or in a sequence of ascending order of appearance in configuration.

11. The apparatus of claim 8, wherein, The quality of the second reference signal is better than a threshold, and / or the number of the second reference signal is not greater than a maximum number configured.

12. The apparatus of claim 8, wherein, The information of the reference signal includes a reference signal identifier, or includes a second bit map, each bit of the second bit map corresponds to a reference signal, and a reference signal corresponding to a bit with a first value is the first reference signal or the second reference signal or a reference signal whose L1 measurement result is included in the first MAC CE.

13. The apparatus of claim 1, wherein, The first MAC CE further includes third indication information indicating that the first MAC CE is triggered by meeting an entering condition of a first event or that the first MAC CE is triggered by meeting a leaving condition of the first event.

14. The apparatus of claim 13, wherein, The triggering of the first event-based layer 1 measurement report includes meeting a leaving condition of the first event or meeting an entering condition of the first event.

15. The apparatus of claim 13, wherein, Any configured reference signal or all configured reference signals, or any triggered reference signal or all triggered reference signals meet the leaving condition of the first event.

16. The apparatus of claim 1, wherein, The first MAC CE further includes fourth indication information indicating that an initial L1 measurement report triggered by an event or indicating that a periodic L1 measurement report triggered by an event.

17. The apparatus of claim 16, wherein, The periodic report ends until the leaving condition is met or until the configured number of reports is reached or until there is no triggered reference signal.

18. A measuring device configured to be disposed in a network device, wherein, The apparatus comprises: A receiver that receives a first medium access control layer control element (first MAC CE) sent by a terminal device when a first event-based layer 1 measurement report is triggered, the first MAC CE including at least one of the following: reference signal information and event information.

19. The apparatus of claim 18, wherein, The apparatus further comprises: A transmitter that sends first configuration information to the terminal device, the first configuration information including reference signal configuration information for configuring a set of measurement reference signals and / or event configuration information, the event configuration information including identification information of one or more second events, and / or type information of one or more second events, and / or threshold information of one or more second events, and / or priority information; the one or more second events at least including the first event.

20. The apparatus of claim 18, wherein, The apparatus further comprises: A transmitter that sends first trigger information to the terminal device, the first trigger information being used to activate or indicate a reference signal, and / or to activate or indicate an event.

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