Measurement reporting method and apparatus

Abstract

Embodiments of the present application provide a measurement reporting method and apparatus. The method comprises: a terminal device triggers Layer-1 measurement reporting when at least one first beam satisfies a first LTM event; and the terminal device generates a first MAC CE or a second MAC CE, or triggers a scheduling request, wherein the first MAC CE or the second MAC CE at least comprises L1-RSRP or L1-SINR of the first beam satisfying the first LTM event.

Description

Measurement reporting methods and devices Technical Field

[0001] The embodiments of this application relate to the field of communication technology. Background Technology

[0002] Rel-18 (version 18) introduced L1 / L2 triggered mobility, which offers improved handover latency and downtime compared to L3-based mobility. However, LTM introduced in Rel-18 also has some limitations compared to L3-based mobility. The goal of the Rel-19 (version 19) work project is to eliminate these limitations.

[0003] Currently, LTM operation only supports mobility between cells within the same gNB (referred to as base station, network equipment, network, etc.) (or the same CU (Centralized Unit)). Depending on the network deployment scenario, this greatly limits the opportunities to use LTM. By ensuring LTM operation between cells of different gNBs (i.e., inter-CUs), the network will be able to gain more of the benefits of LTM through handover.

[0004] L3-based mobility uses L3 measurement reporting, which allows the UE (User Equipment, Terminal Equipment, Terminal, etc.) to evaluate events to trigger measurement reports, reducing signaling overhead compared to periodic measurement reporting. L1 measurements used for LTM mobility do not support such event triggering.

[0005] L1 measurements in the LTM process are limited to SSB (Synchronization Signal and PBCH block) measurements. Extending L1 measurements to include CSI-RS (Channel State Information-Reference Signal) can overcome this limitation and promises to achieve greater throughput on the target cell immediately after cell handover.

[0006] Currently, L3-based mobility has been developed in several releases, defining Conditional Handover (CHO) and other conditional mobility procedures (such as CPAC (Conditional PSCell Addition / Change) and SCPAC (Subsequent CPAC)). These procedures achieve high robustness by ensuring that pre-signaling interaction with the source cell is not required beforehand. LTM, introduced in Rel-18, provides short downtime, but its robustness is not as good as L3-based mobility procedures.

[0007] In Rel-19 (Version 19), enhancements should be defined so that the system can benefit from high robustness and short outages. The objectives of this work project include: defining L2 mobility (LTM) support for inter-CUs; measurement-related enhancements to support LTM; defining LTM support for conditional intra-CUs; and, where necessary, defining RRM (Radio Resource Management) requirements related to the above objectives.

[0008] In the above objectives, L2 mobility (LTM) supporting inter-CU is defined as including:

[0009] ●Prioritize the case where the CU (Central Unit) acts as the MN (Master Node) when DC (Dual Connectivity) is not configured;

[0010] ● As a secondary priority, it supports the configuration of NR-DC, where CU acts as SN (Secondary Node) and MN remains unchanged;

[0011] ● As a secondary priority, it supports the configuration of NR-DC, CU as MN and SCG (Secondary Cell Group) unchanged or released; Note: It excludes the case where both MCG (Master Cell Group) and SCG are configured with LTM;

[0012] ● Based on Rel-18 LTM, support for subsequent LTM mobility procedures is defined, with the goal of avoiding RRC (Radio Resource Control) configuration between cell handovers; and negotiation with SA3 (Security Group) is conducted regarding security key processing.

[0013] Of the aforementioned objectives, it is worth noting that the Rel-18intra-CU LTM process is considered a baseline for increasing inter-CU support.

[0014] Among the above objectives, measurement-related enhancements to support LTM include:

[0015] ● Measurement-related enhancements are applicable to both intra-CU MCG / SCG LTM and inter-CU MCG / SCG LTM;

[0016] ● Define the necessary components to support event-triggered L1 measurement reporting;

[0017] ● Define CSI-RS measurements to support the LTM process and ensure necessary physical layer operations on CSI-RS-based beam management and / or other LTM pre-candidate cells.

[0018] Among the above objectives, the definition of Support Condition LTM includes:

[0019] ● Define the conditions for triggering LTM in UE assessment;

[0020] ●The goal is to support conditional LTM, including subsequent LTM;

[0021] ●Conditional LTM is defined in scenarios where the UE is a non-DC user;

[0022] ● As a checkpoint, review the target to determine if Intra-CU (Intra-CU) conditional LTM can be defined in a DC scenario, and if so, define which use cases. Do not begin RAN (Radio Access Network) WG (Work Group) work before this checkpoint.

[0023] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this application. Summary of the Invention

[0024] The inventors discovered that the following events are supported for event-triggered L1 measurement reporting:

[0025] - Event LTM2: The beam of the serving cell becomes worse than the absolute threshold;

[0026] - Event LTM3: The beam of the candidate cell becomes an offset better than the beam of the serving cell;

[0027] - Event LTM4: The beam of candidate cell becomes better than the absolute threshold;

[0028] - Event LTM5: The beam of the serving cell becomes worse than absolute threshold 1 and the beam of the candidate cell becomes better than another absolute threshold 2.

[0029] For event-triggered Layer 1 measurement reporting, a MAC CE (Media Access Control-Control Element) is used. Within this MAC CE, up to N beams' L1-RSRP (Reference Signal Receiving Power / Reference Signal Received Power) or SINR (Signal to Interference plus Noise Ratio) are reported. N is configured by the network, with a maximum of N being the total number of beams included in the MAC CE. The UE can include information and quality of the current beam in the event-triggered Layer 1 measurement reporting. The network controls whether beams that do not meet the event criteria can be reported based on N. Based on the measurement quality, beams that do not meet the event conditions are selected.

[0030] For L1-RSRP, existing RSRP values ​​and RSRP offsets can be reused using Rel-18 differential RSRP encoding.

[0031] However, there are several problems with reporting N beams:

[0032] Question 1: For measurement reporting triggered by event LTM2, besides the beam of the serving cell that triggered the measurement reporting, are the beams of candidate cells included, and how?

[0033] Question 2: How to include the serving cell beam in the measurement report / reporting (MR) MAC CE?

[0034] Question 3: Considering that truncated MR MAC CE and non-truncated MR MAC CE use a common format, how to report the L1-RSRP value of the candidate cell beam? For example, how to report the L1-RSRP value of the triggered beam when N equals 1 or is greater than 1? And how to define the format of truncated MR MAC CE?

[0035] To address at least one of the above-mentioned problems or other similar issues, embodiments of this application provide a measurement reporting method and apparatus.

[0036] According to one aspect of the embodiments of this application, a measurement reporting method is applied to a terminal device, the method comprising:

[0037] The terminal device triggers Layer 1 measurement reporting when at least one first beam satisfies the first LTM event;

[0038] The terminal device generates a first MAC CE or a second MAC CE or triggers a scheduling request, wherein the first MAC CE or the second MAC CE includes at least an L1-RSRP or L1-SINR of the first beam that satisfies the first LTM event.

[0039] According to one aspect of the embodiments of this application, a measurement reporting device is configured in a terminal device, the device comprising:

[0040] A triggering unit that triggers Layer 1 measurement reporting when at least one first beam satisfies a first LTM event;

[0041] The processing unit generates a first MAC CE or a second MAC CE or triggers a scheduling request, wherein the first MAC CE or the second MAC CE includes at least the L1-RSRP or L1-SINR of the first beam that satisfies the first LTM event.

[0042] One of the beneficial effects of this application embodiment is that, according to this application embodiment, the event-triggered Layer 1 measurement report at least includes the measurement results of the trigger beam and clarifies the content and format of the measurement report, ensuring that the network can understand the content of the measurement report and that the content and format of the measurement report are consistent with the terminal's understanding, thereby enabling the network to make appropriate decisions based on the measurement report.

[0043] Specific embodiments of this application are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of this application can be adopted. It should be understood that the embodiments of this application are not limited in scope. Within the spirit and scope of the appended claims, embodiments of this application include many changes, modifications, and equivalents.

[0044] Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0045] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, whole, step, or component, but does not exclude the presence or addition of one or more other features, wholes, steps, or components. Attached Figure Description

[0046] The elements and features described in one drawing or embodiment of this application may be combined with elements and features shown in one or more other drawings or embodiments. Furthermore, in the drawings, similar reference numerals denote corresponding parts in several drawings and can be used to indicate corresponding parts used in more than one embodiment.

[0047] Figure 1 is a schematic diagram of the overall LTM process;

[0048] Figure 2 is a schematic diagram of the random access process;

[0049] Figure 3 is a schematic diagram of a measurement reporting method according to an embodiment of this application;

[0050] Figures 4 to 9 are schematic diagrams of some examples of MR MAC CE;

[0051] Figures 10 and 11 are schematic diagrams of some other examples of MR MAC CE;

[0052] Figure 12 is a schematic diagram of a measurement reporting receiving method according to an embodiment of this application;

[0053] Figure 13 is a schematic diagram of a measurement reporting device according to an embodiment of this application;

[0054] Figure 14 is a schematic diagram of a measurement reporting receiving device according to an embodiment of this application;

[0055] Figure 15 is a schematic diagram of a communication system according to an embodiment of this application;

[0056] Figure 16 is a schematic diagram of a terminal device according to an embodiment of this application;

[0057] Figure 17 is a schematic diagram of a network device according to an embodiment of this application. Detailed Implementation

[0058] Referring to the accompanying drawings, the foregoing and other features of this application will become apparent from the following description. Specific embodiments of this application are specifically disclosed in the description and drawings, illustrating partial implementations in which the principles of this application may be employed. It should be understood that this application is not limited to the described embodiments; rather, it includes all modifications, variations, and equivalents falling within the scope of the appended claims.

[0059] In the embodiments of this application, the terms "first," "second," etc., are used to distinguish different elements by name, but do not indicate the spatial arrangement or chronological order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one or more of the terms listed in association and all combinations thereof. The terms "comprising," "including," "having," etc., refer to the presence of the stated features, elements, components, or assemblies, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies.

[0060] In the embodiments of this application, the singular forms "a," "the," etc., including the plural forms, should be broadly understood as "a kind" or "a class" rather than limited to the meaning of "an." Furthermore, the term "the" should be understood to include both the singular and plural forms, unless the context explicitly indicates otherwise. Additionally, the term "according to" should be understood as "at least partially based on…," and the term "based on" should be understood as "at least partially based on…," unless the context explicitly indicates otherwise.

[0061] In the embodiments of this application, the term "communication network" or "wireless communication network" may refer to a network that conforms to any of the following communication standards, such as Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0062] Furthermore, communication between devices in a communication system can be carried out according to communication protocols at any stage, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), etc., and / or other currently known or future communication protocols.

[0063] In the embodiments of this application, the term "network device" refers, for example, to a device in a communication system that connects a terminal device to a communication network and provides services to that terminal device. Network devices may include, but are not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.

[0064] Base stations can include, but are not limited to: NodeBs (or NBs), evolved NodeBs (or eNodeBs or eNBs), and 5G base stations (gNBs), etc. They can also include Remote Radio Heads (RRHs), Remote Radio Units (RRUs), relays, or low-power nodes (e.g., femeto, pico, etc.), IAB (Integrated Access and Backhaul) nodes, or IAB-DUs or IAB-donors. The term "base station" can include some or all of their functions, and each base station can provide communication coverage to a specific geographic area. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which the term is used. Without causing confusion, the terms "cell" and "base station" are used interchangeably.

[0065] In the embodiments of this application, the terms "User Equipment" (UE) or "Terminal Equipment" (TE) refer, for example, to a device that accesses a communication network and receives network services through a network device. Terminal equipment can be fixed or mobile, and may also be referred to as a mobile station (MS), terminal, subscriber station (SS), access terminal (AT), IAB-MT (Mobile Terminal), station, etc.

[0066] Terminal devices may include, but are not limited to, the following devices: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptops, cordless phones, smartphones, smartwatches, digital cameras, etc.

[0067] For example, in scenarios such as the Internet of Things (IoT), terminal devices can also be machines or devices for monitoring or measurement, such as including but not limited to: machine-type communication (MTC) terminals, vehicle communication terminals, device-to-device (D2D) terminals, machine-to-machine (M2M) terminals, and so on.

[0068] Furthermore, the terms "network side" or "network equipment side" refer to one side of the network, which can be a base station or include one or more network devices as described above. The terms "user side," "terminal side," or "terminal equipment side" refer to the side of the user or terminal, which can be a UE or include one or more terminal devices as described above. Unless otherwise specified, "equipment" can refer to either network equipment or terminal equipment.

[0069] The scenarios of the embodiments of this application will be described below with reference to the accompanying drawings.

[0070] This application applies to LTM scenarios. LTM is a process in which the gNB receives an L1 or L3 measurement report from the UE, and based on this, the gNB changes the UE's serving cell via a cell switch command sent via the MAC CE (MAC control element). This cell switch command indicates an LTM candidate configuration that the gNB has previously prepared and provided to the UE via RRC signaling; the UE then applies the target configuration according to the cell change command.

[0071] Figure 1 is a schematic diagram of the overall LTM process. Subsequent LTM is achieved by repeating the early synchronization, LTM cell handover execution, and LTM cell handover completion steps, without releasing other LTM candidate configurations after each LTM cell handover. The basic process over the air interface applies to MCG LTM or SCG LTM. As shown in Figure 1, the process includes the following steps:

[0072] 1. The UE sends a MeasurementReport message to the gNB, in which the gNB-CU decides to configure LTM and initiates LTM preparation;

[0073] 1a. In the case of inter-gNB LTM, the source gNB requests one or more gNBs to configure LTM for one or more candidate cells. The candidate gNB(s) sends the LTM candidate configuration to the source gNB;

[0074] 2.gNB sends an RRCReconfiguration message to the UE, which includes LTM candidate configurations;

[0075] 3. The UE stores the LTM candidate configuration and sends an RRCReconfigurationComplete message to the gNB;

[0076] 4a. Before receiving a cell handover command, the UE can perform DL (Downlink) synchronization with the candidate cell; the UE can activate and deactivate the TCI state of the LTM candidate cell, triggered by the source gNB;

[0077] 4b. Before receiving a cell handover command, the UE can perform UL synchronization with the candidate cell by using UE-based TA measurement (if configured) and / or by sending a preamble to the candidate cell, triggered by the source gNB. When UE-based TA (Timing Advance) measurement is configured, the UE obtains the TA value of the candidate cell through measurement; before receiving a cell change command, at the network request, the UE performs early TA acquisition with the candidate cell. This is accomplished through CFRA (Contention Free Random Access), which is triggered by the source cell's PDCCH (Physical Downlink Control Channel) order. Subsequently, the UE sends a preamble to the indicated candidate cell, as shown in Figure 2, which is a schematic diagram of the random access process. To minimize data interruption to the source cell caused by CFRA to the candidate cell, the UE does not accept random access responses from the network for the purpose of obtaining the TA value, which is indicated in the cell change command. The UE does not maintain a TA timer for the candidate cell, but relies on the network to ensure TA validity.

[0078] 5. The UE performs L1 measurements on the configured candidate cells and sends an L1 measurement report to the source gNB; wherein, L1 measurements should be performed as long as the RRC reconfiguration (step 2) is applicable.

[0079] 6. The source gNB decides to perform a cell handover to a target cell and informs the target gNB. The source gNB sends a target configuration ID, which includes an index indicating the candidate configuration of the target cell, a beam indicated by a TCI state or a beam indicated by DL and UL TCI states, and a timing advance command for the target cell. If an LTM cell handover command MAC CE is available to trigger the cell handover, the UE switches to the target cell and applies the candidate configuration indicated by the target configuration ID.

[0080] 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;

[0081] 8. The UE completes the LTM cell handover process by sending an RRCReconfigurationComplete message to the target cell.

[0082] It is worth noting that if the UE performs a random access procedure in step 7, the UE considers the LTM cell handover to be successfully completed when the random access procedure is successfully completed. For RACH-less LTM, that is, when step 7 is not performed, the UE considers the LTM cell handover to be successfully completed when it determines that the network has successfully received its first UL data.

[0083] In addition, for subsequent LTM, the LTM candidate configurations provided in step 2 can be used to execute steps 4 to 8 multiple times. That is, subsequent LTM is achieved by repeating the steps of early synchronization, LTM cell handover execution and LTM cell handover completion, and no other LTM candidate configurations are released after each LTM cell handover is completed.

[0084] In this application embodiment, L1 measurement reporting is involved, which includes L1-RSRP (Reference Signal Receiving Power / Reference Signal Received Power) reporting. The basic concepts of L1-RSRP reporting are explained below.

[0085] If the high-level parameter nrofReportedRS in CSI-ReportConfig is configured to 1, or if both the high-level parameters nrOfReportedCells and nrOfReportedRS-PerCell are configured to 1, the reported L1-RSRP value is defined as a 7-bit value in the range of [-140, -44] dBm with a step size of 1 dB.

[0086] If the higher-layer parameter nrofReportedRS is configured to be greater than 1, or if the higher-layer parameter groupBasedBeamReporting is configured to "enabled", or if the higher-layer parameter groupBasedBeamReporting-r17 is configured, or if the higher-layer parameter groupBasedBeamReporting-r18 is configured, or if either the higher-layer parameters nrOfReportedCells or nrOfReportedRS-PerCell is configured to be greater than 1, the UE uses differential L1-RSRP-based reporting. That is, the largest L1-RSRP measurement is quantized into a 7-bit value, ranging from [-140, -44] dBm, with a step size of 1 dB; the differential L1-RSRP is quantized into a 4-bit value, which uses a 2 dB step size and is calculated with reference to the largest measured L1-RSRP value in the same L1-RSRP reporting instance.

[0087] Table 1 below shows the mapping relationship between the reported L1-RSRP values ​​and the measured quantities.

[0088] Table 1:

[0089] The embodiments of this application will be described below with reference to the accompanying drawings and specific implementation details. In the following description, without causing confusion, "if…", "in the case of…", and "when…" can be used interchangeably, and "measurement reporting" can also be referred to as "measurement report" or "measurement reporting / reporting". Additionally, "new transmission" in this document refers to the first transmission of the obtained MAC PDU, as opposed to HARQ retransmission. The embodiments of this application are used at least for LTM and subsequent LTMs of intra-CU / gNB and inter-CU / gNB, and can also be used for conditional LTM (CLTM) and subsequent conditional LTMs of intra-CU / gNB.

[0090] First aspect of the embodiments

[0091] This application provides a measurement reporting method, which is described from the perspective of a terminal device.

[0092] Figure 3 is a schematic diagram of a measurement reporting method according to an embodiment of this application. As shown in Figure 3, the method includes:

[0093] 310: The terminal device triggers Layer 1 measurement reporting when at least one first beam satisfies the first LTM event;

[0094] 320: The terminal device generates a first MAC CE or a second MAC CE or triggers a scheduling request, wherein the first MAC CE or the second MAC CE includes at least the L1-RSRP or L1-SINR of the first beam that satisfies the first LTM event.

[0095] It is worth noting that Figure 3 above only schematically illustrates the embodiments of this application, but this application is not limited thereto. For example, other operations may be added or some operations may be removed. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description in Figure 3 above.

[0096] According to the above embodiments, the event-triggered Layer 1 measurement report includes at least the measurement results of the trigger beam and clarifies the content and format of the measurement report, ensuring that the network can understand the content of the measurement report and that the content and format of the measurement report are consistent with the terminal's understanding, thereby enabling the network to make appropriate decisions based on the measurement report.

[0097] In this embodiment, for ease of explanation, the beam that satisfies the first LTM event (for example, if a timeToTrigger is configured for the first LTM event, satisfying the first LTM event means that the first LTM event is satisfied during the timeToTrigger period) is called the first beam, and the beam that does not satisfy the first LTM event is called the second beam. Satisfying the first LTM event can also be called satisfying the conditions of the first LTM event. Similarly, not satisfying the first LTM event can also be called not satisfying the conditions of the first LTM event. In addition, in this embodiment, the first LTM event can be one of the aforementioned events LTM2, LTM3, LTM4, and LTM5. Depending on the first LTM event, the beam that satisfies the first LTM event (i.e., the first beam) is also different, which will be explained in detail in the following embodiments.

[0098] In some embodiments, the first beam and the second beam can be beams of the candidate cell, such as an SSB or CSI-RS configured for the candidate cell, or beams of the serving cell, such as a reference signal (SSB or CSI-RS) associated with the indicated TCI state, or an SSB or CSI-RS associated with the reference signal QCL (Quasi Co Location). Depending on the implementation scenario, the beam types of the first beam and the second beam may differ, as will be described in the following embodiments.

[0099] In the embodiments of this application, the first MAC CE and the second MAC CE are measurement reporting / reporting MAC CEs (MR MAC CEs). For example, the first MAC CE can be an untruncated MR MAC CE, and the second MAC CE can be a truncated MR MAC CE.

[0100] In some embodiments, the terminal device generates a first MAC CE or a second MAC CE or triggers a scheduling request, including:

[0101] If the uplink shared channel (UL-SCH) resource is available for a new transmission, and as a result of logical channel priority (LCP), the UL-SCH resource is able to accommodate the first MAC CE plus its header, then the terminal device instructs the multiplexing and reassembly process to generate the first MAC CE;

[0102] Otherwise, if the UL-SCH resource is available for the new transmission, and as a result of LCP, the UL-SCH resource can accommodate the second MAC CE plus its subheading, the terminal device instructs the multiplexing and reassembly process to generate the second MAC CE;

[0103] Otherwise, the terminal device triggers a scheduling request.

[0104] In the above embodiments, the second MAC CE can be the first M bytes of the first MAC CE, where M is a positive integer greater than or equal to 1, such as 1, 2, 3, etc. That is, the second MAC CE is a truncated version of the first MAC CE, for example, the second MAC CE is the first byte of the first MAC CE, or the second MAC CE is the first and second bytes of the first MAC CE.

[0105] In other embodiments, the terminal device generates a first MAC CE or a second MAC CE or triggers a scheduling request, including:

[0106] If the UL-SCH resource is available for new transmission, and as a result of LCP, the UL-SCH resource can accommodate the first MAC CE plus its header, then the terminal device instructs the multiplexing and reassembly process to generate the first MAC CE;

[0107] Otherwise, if the UL-SCH resource is available for new transmission, and as a result of LCP, the UL-SCH resource is capable of accommodating a second MAC CE in the first format plus its subheading, the terminal device instructs the multiplexing and reassembly process to generate a second MAC CE in the first format;

[0108] Otherwise, if the UL-SCH resource is available for the new transmission, and as a result of LCP, the UL-SCH resource is capable of accommodating the second MAC CE in the second format plus its subheading, the device instructs the multiplexing and reassembly process to generate the second MAC CE in the second format;

[0109] Otherwise, the terminal device triggers a scheduling request.

[0110] In the above embodiments, the second MAC CE of the first format or the second format can be the first M bytes of the first MAC CE, where M is a positive integer greater than or equal to 1, such as M being an integer like 1, 2, or 3.

[0111] In the above embodiments, the number of bytes in the second MAC CE of the first format can be more than the number of bytes in the second MAC CE of the second format. For example, the second MAC CE of the first format has 2 bytes, while the second MAC CE of the second format has 1 byte. That is to say, the second MAC CE of the first or second format is a truncated version of the first MAC CE. For example, the second MAC CE of the first format is the first and second bytes of the first MAC CE, and the second MAC CE of the second format is the first byte of the first MAC CE.

[0112] In the above embodiments, the second MAC CE of the second format may only include the L1-RSRP of the first beam that satisfies the first LTM event, and the second MAC CE of the first format may at least include the measurement of the second beam that does not satisfy the first LTM event (e.g., L1-RSRP or L1-SINR) or L1-RSRP, or the measurement of the serving cell's beam (e.g., L1-RSRP or L1-SINR) or L1-RSRP.

[0113] Optionally, the second beam that does not satisfy the first LTM event can be the strongest beam, for example, the strongest beam that does not satisfy the first LTM event. The measurement quantity (e.g., L1-RSRP or L1-SINR) or L1-RSRP of the second beam can be the maximum or latest measurement quantity or the maximum or latest L1-RSRP of the second beam. Alternatively, the measurement quantity (e.g., L1-RSRP or L1-SINR) or L1-RSRP of the second beam can be the maximum measurement quantity or the maximum L1-RSRP. This application is not limited thereto.

[0114] In some embodiments, the first MAC CE includes beam information for P beams, where P ≤ N, and N is configured by the network device.

[0115] In the above embodiments, beam information may include beam identifier, L1-RSRP, L1-SINR, etc. For example, the beam information of P beams is the beam identifier and L1-RSRP of these P beams, or, for another example, the beam information of P beams is the beam identifier and L1-SINR of these P beams, and so on.

[0116] In the above embodiments, the P beams may be beams of the serving cell and / or beams of the candidate cell. In addition, the P beams may include a first beam that satisfies the first LTM event, or a first beam that satisfies the first LTM event and a second beam that does not satisfy the first LTM event.

[0117] In the above embodiments, the serving cell can be a PCell, a special cell, or a serving cell that includes a special cell and a secondary cell; this application is not limited thereto.

[0118] In the above embodiments, the serving cell's beam may be the first beam that satisfies the first LTM event, and its beam information is included in the MR MAC CE (e.g., the first MAC CE or the second MAC CE (a second MAC CE in a first format or a second format)). The serving cell's beam may not be the first beam that satisfies the first LTM event. If its beam information is included in the MR MAC CE, then its beam information may be after the beam information of the first beam that satisfies the first LTM event, or after the beam information of the second beam that does not satisfy the first LTM event.

[0119] For example, if the first LTM event is event LTM2, the serving cell's beam can be the first beam that satisfies the first LTM event, and its beam information is the first beam information contained in the MR MAC CE.

[0120] For example, if the first LTM event is event LTM3 or event LTM5, and if the MR MAC CE includes the beam information of the serving cell's beam and the beam information of the first beam that satisfies the first LTM event, then the beam information of the serving cell's beam can be obtained after the beam information of the first beam that satisfies the first LTM event.

[0121] In the above example, if the MR MAC CE also includes beam information of a second beam that does not meet the first LTM event, then in the MR MAC CE, the beam information of the serving cell's beam can be placed before the beam information of the second beam that does not meet the first LTM event, or it can be placed together with the beam information of the second beam that does not meet the first LTM event and sorted according to the magnitude of the measurement quality.

[0122] For example, if the first LTM event is event LTM3, event LTM4, or event LTM5, and if the MR MAC CE includes the beam information of the serving cell's beam and the beam information of the second beam that does not satisfy the first LTM event, then the beam information of the serving cell's beam can be included after the beam information of the second beam that does not satisfy the first LTM event, that is, it is included in the last beam information of the MR MAC CE.

[0123] In some embodiments, when the first LTM event is event LTM2, the MR MAC CE (first MAC CE or second MAC CE) either does not include beam information of the candidate cell's beam or only includes beam information of the serving cell's beam. That is, the aforementioned P beams either do not include the candidate cell's beam or only include the serving cell's beam.

[0124] For example, the MR MAC CE may not include measurements of the candidate cell's beam and / or L1-RSRP and / or L1-SINR, or the MR MAC CE may only include measurements of the serving cell's beam and / or L1-RSRP and / or L1-SINR. The implementation of the L1-RSRP, such as using a 7-bit absolute value, a 4-bit differential value, or both a 7-bit absolute value and a 4-bit differential value, will be described in later embodiments.

[0125] In other embodiments, when the first LTM event is event LTM2, the MR MAC CE (first MAC CE or second MAC CE) includes beam information of the candidate cell's beams. That is, the aforementioned P beams include the candidate cell's beams.

[0126] For example, the MR MAC CE includes measurements of the serving cell's beam and / or L1-RSRP and / or L1-SINR, as well as measurements of the candidate cell's beam and / or L1-RSRP and / or L1-SINR. The implementation of the L1-RSRP, such as using a 7-bit absolute value, a 4-bit differential value, or both a 7-bit absolute value and a 4-bit differential value, will be described in later embodiments.

[0127] In this embodiment of the application, the number of first beams that satisfy the first LTM event is one or more. That is, the first MAC CE includes beam information of P beams. These P beams may include one or more first beams that satisfy the first LTM event, or they may include one or more first beams that satisfy the first LTM event and second beams that do not satisfy the first LTM event.

[0128] In some embodiments, the L1-RSRP of the first beam uses a 7-bit absolute value and / or a 4-bit differential value.

[0129] In some possible implementations, the number of bits of the L1-RSRP of the first beam is determined according to the number P of beams included in the first MAC CE.

[0130] For example, if P is 1, that is, the first MAC CE includes beam information of a beam, as mentioned above, the beam can be the beam of the serving cell or the beam of the candidate cell, and the beam is the first beam that satisfies the first LTM event, then the L1-RSRP of the first beam adopts a 7-bit absolute value.

[0131] For example, if P is greater than 1, that is, the first MAC CE includes beam information of multiple beams, as mentioned above, these multiple beams may include the beams of the serving cell and / or the beams of the candidate cells, and these multiple beams include a first beam that satisfies the first LTM event and a second beam that does not satisfy the first LTM event, then the L1-RSRP of the first beam uses a 4-bit differential value. In the second beam, the L1-RSRP of the strongest second beam uses a 7-bit absolute value, and the L1-RSRP of the other second beams refers to the L1-RSRP of the strongest second beam and uses a 4-bit differential value; this example applies to the case where the first beam is not the strongest beam.

[0132] For example, if P is greater than 1, that is, the first MAC CE includes beam information of multiple beams, as mentioned above, these multiple beams may include the beams of the serving cell and / or the beams of the candidate cells, and these multiple beams include a first beam that satisfies the first LTM event and a second beam that does not satisfy the first LTM event, then the L1-RSRP of the first beam uses a 7-bit absolute value, and the L1-RSRP of the second beam uses a 4-bit differential value with reference to the L1-RSRP of the first beam; this example applies to the case where the first beam is the strongest beam.

[0133] In the example above, if P is greater than 1, meaning the first MAC CE includes beam information of multiple beams, then the order of this beam information in the first MAC CE can be:

[0134] First, the L1-RSRP of the first beam that satisfies the first LMT event is a 7-bit absolute value (if the first beam is the strongest beam), or the maximum measurement of the strongest beam is referenced or the L1-RSRP is a 4-bit differential value (if the first beam is not the strongest beam).

[0135] Secondly, the P-1 L1-RSRPs of the second beams that do not satisfy the first LTM event, and these P-1 L1-RSRPs of the second beams are arranged in descending order of measurement quality, as follows:

[0136] First, the L1-RSRP of the strongest second beam uses a 7-bit absolute value (if the first beam is not the strongest beam), or the L1-RSRP of the first beam uses a 4-bit differential value (if the first beam is the strongest beam).

[0137] Secondly, the L1-RSRP of the second strongest second beam is referenced to the L1-RSRP of the strongest second beam (if the first beam is not the strongest beam) or the first beam (if the first beam is the strongest beam), using a 4-bit differential value.

[0138] …;

[0139] Finally, the L1-RSRP of the P-1 strong second beam is referenced to the L1-RSRP of the strongest second beam (if the first beam is not the strongest beam) or the first beam (if the first beam is the strongest beam).

[0140] A 4-bit differential value is used.

[0141] In some other possible implementations, the L1-RSRP of the first beam uses a 7-bit absolute value, and in the second beam, the L1-RSRP of the strongest second beam uses a 7-bit absolute value, while the L1-RSRP of the other second beams uses a 4-bit differential value to reference the L1-RSRP of the strongest second beam.

[0142] In the above example, if the first MAC CE includes beam information of multiple beams, as mentioned above, these multiple beams may include beams of the serving cell and / or beams of candidate cells, and these multiple beams include a first beam that satisfies the first LTM event and a second beam that does not satisfy the first LTM event, then the order of the beam information of these multiple beams in the first MAC CE may be:

[0143] First, the L1-RSRP of the first beam that satisfies the first LMT event (using 7 bits of absolute value);

[0144] Secondly, the L1-RSRPs of the second beams that do not satisfy the first LTM event, and the L1-RSRPs of these second beams are arranged in descending order of measurement quality, as follows:

[0145] First, the L1-RSRP of the strongest second beam uses a 7-bit absolute value;

[0146] Secondly, the L1-RSRP of the second strongest beam is referenced to the L1-RSRP of the strongest beam, using a 4-bit differential value.

[0147] …;

[0148] Finally, the L1-RSRP of the weakest second beam is referenced to the L1-RSRP of the strongest second beam, using a 4-bit differential value.

[0149] The above example applies to cases where the first beam is not the strongest beam.

[0150] If the first beam is the strongest beam, in some examples, the first MAC CE can adopt the same format as the aforementioned first MAC CE, thereby simplifying the format of the MAC CE and eliminating the need for additional MAC CE design; in other embodiments, in the beam information of the multiple beams included in the first MAC CE, the L1-RSRP of the first beam adopts a 7-bit absolute value, and the L1-RSRP of the second beam adopts a 4-bit differential value with reference to the L1-RSRP of the first beam.

[0151] In some other possible implementations, the L1-RSRP of the first beam uses a 7-bit absolute value, and the L1-RSRP of the second beam references the first beam using a 4-bit differential value, indicating the sign of the beam relative to the 7-bit absolute value.

[0152] In the above example, if the first MAC CE includes beam information of multiple beams, as mentioned above, these multiple beams may include beams of the serving cell and / or beams of candidate cells, and these multiple beams include a first beam that satisfies the first LTM event and a second beam that does not satisfy the first LTM event, then the order of the beam information of these multiple beams in the first MAC CE may be:

[0153] First, the L1-RSRP of the first beam that satisfies the first LMT event (using 7 bits of absolute value);

[0154] Secondly, the L1-RSRPs of the second beams that do not satisfy the first LMT event (the L1-RSRP of the first beam is referenced using a 4-bit differential value) are arranged in descending order of measurement quality.

[0155] In the above example, the first MAC CE may further include an indicator field, which may be 1 bit, to indicate the sign of the 4-bit L1-RSRP differential value of the second beam relative to the 7-bit L1-RSRP absolute value of the first beam. For example, a bit value of 1 indicates "positive" or "greater than", meaning greater than the absolute value of the aforementioned 7 bits, and a bit value of 0 indicates "negative" or "less than", meaning less than the absolute value of the aforementioned 7 bits. This application is not limited to this, and the sign of the 4-bit L1-RSRP differential value of the second beam relative to the absolute value of the 7-bit L1-RSRP of the first beam may also be indicated in other ways.

[0156] The above example also applies to the case where the first beam is not the strongest beam. If the first beam is the strongest beam, then the first MAC CE can adopt the same format as the aforementioned embodiment.

[0157] In some other possible implementations, the L1-RSRP of the first beam uses a 7-bit absolute value and the L1-RSRP of the reference strongest beam uses a 4-bit differential value, and the L1-RSRP of the second beam uses a 4-bit differential value to reference the L1-RSRP of the reference strongest beam.

[0158] In the above example, if the first MAC CE includes beam information of multiple beams, as mentioned above, these multiple beams may include beams of the serving cell and / or beams of candidate cells, and these multiple beams include a first beam that satisfies the first LTM event and a second beam that does not satisfy the first LTM event, then the order of the beam information of these multiple beams in the first MAC CE may be:

[0159] First, the L1-RSRP of the first beam that satisfies the first LMT event (using a 7-bit absolute value and a 4-bit differential value of the L1-RSRP of the reference strongest beam);

[0160] Secondly, the L1-RSRPs of the second beams that do not meet the first LMT event (the L1-RSRP of the strongest beam is referenced using a 4-bit differential value) are arranged in descending order of measurement quality.

[0161] The above example also applies to the case where the first beam is not the strongest beam. If the first beam is the strongest beam, then the first MAC CE can adopt the same format as the aforementioned embodiment.

[0162] In some other possible implementations, the first value of the L1-RSRP reference configuration for the first beam is a 4-bit differential value, and the first value of the L1-RSRP reference configuration for the second beam is a 4-bit differential value.

[0163] In the above example, if the first MAC CE includes beam information of multiple beams, as mentioned above, these multiple beams may include beams of the serving cell and / or beams of candidate cells, and these multiple beams include a first beam that satisfies the first LTM event and a second beam that does not satisfy the first LTM event, then the order of the beam information of these multiple beams in the first MAC CE may be:

[0164] First, the L1-RSRP of the first beam that satisfies the first LMT event (a 4-bit differential value of the first value with reference to the above configuration);

[0165] Secondly, the L1-RSRPs of the second beams that do not meet the first LMT event (4-bit differential values ​​of the first value as described above) are arranged in descending order of measurement quality.

[0166] In the above example, there are no restrictions on the configuration method and value of the first value. It is used as a reference when the terminal device calculates the L1-RSRP differential value of the first and second beams to be reported in the L1 measurement report.

[0167] The above example also applies to the case where the first beam is not the strongest beam. If the first beam is the strongest beam, then the first MAC CE can adopt the same format as the aforementioned embodiment.

[0168] In some other possible implementations, the L1-RSRP of the first beam uses a 7-bit absolute value, and the second value of the L1-RSRP reference configuration of the second beam uses a 4-bit differential value of the L1-RSRP.

[0169] In the above example, if the first MAC CE includes beam information of multiple beams, as mentioned above, these multiple beams may include beams of the serving cell and / or beams of candidate cells, and these multiple beams include a first beam that satisfies the first LTM event and a second beam that does not satisfy the first LTM event, then the order of the beam information of these multiple beams in the first MAC CE may be:

[0170] First, the L1-RSRP of the first beam that satisfies the first LMT event (using 7 bits of absolute value);

[0171] Secondly, the L1-RSRPs of the second beams that do not satisfy the first LMT event (the 4-bit differential value of the second value as described above) are arranged in descending order of measurement quality.

[0172] In the above example, there are no restrictions on the configuration method and value of the second value. It is used as a reference when the terminal device calculates the L1-RSRP differential value of the second beam to be reported in the L1 measurement report.

[0173] The above example also applies to the case where the first beam is not the strongest beam. If the first beam is the strongest beam, then the first MAC CE can adopt the same format as the aforementioned embodiment.

[0174] Furthermore, in the examples above, the L1-RSRP of the referenced beam can be, for example, the maximum L1-RSRP of the referenced beam. For example, "the L1-RSRP of the strongest second beam" can be "the maximum L1-RSRP of the strongest second beam", and this application is not limited thereto.

[0175] Furthermore, in the examples above, taking L1-RSRP as the beam information of the beam is an example. This application is not limited to this. The beam information of the beam included in the first MAC CE can also be other measurement quantities, such as L1-SINR, etc. That is, the above L1-RSRP can also be described as other measurement quantities. This application does not limit this.

[0176] In addition, in the examples above, the first MAC CE may also indicate at least one of the following:

[0177] Did it use 7 bits or 4 bits?

[0178] Whether absolute or relative values ​​were used;

[0179] Is it the strongest beam?

[0180] Is it the maximum L1-RSRP value?

[0181] The number of beam information reported or included;

[0182] It uses the MAC CE format.

[0183] The examples above only illustrate the bit values ​​of the L1-RSRP of the first beam and the L1-RSRP of the second beam, and their order in the MR MAC CE. However, this application is not limited to these examples, and appropriate modifications can be made based on them. For example, the examples above can be used individually, or one or more of them can be combined.

[0184] In the foregoing examples, if the first MAC CE includes beam information for multiple beams, for a first beam using a 7-bit L1-RSRP absolute value, all of the multiple first beams can use a 7-bit L1-RSRP absolute value; alternatively, among the multiple first beams, the first beam that first satisfies the first LTM event is considered the first beam that satisfies the first LTM event, and the other first beams use the same 7-bit L1-RSRP absolute value or 4-bit L1-RSRP differential value as the second beam that does not satisfy the first LTM event; or, among the multiple first beams, the strongest first beam uses a 7-bit L1-RSRP absolute value, and the other first beams use a 4-bit L1-RSRP differential value with reference to the maximum measurement or L1-RSRP of the strongest first beam. Furthermore, for a first beam using a 4-bit L1-RSRP differential value, the same measurement or L1-RSRP or configured value can be used with reference to the 4-bit L1-RSRP differential value.

[0185] The format of the MR MAC CE (the aforementioned first MAC CE and / or second MAC CE) in the embodiments of this application will be described below through specific examples.

[0186] Figures 4 to 9 are some examples of the format of the MR MAC CE according to embodiments of this application, showing the case of a measurement report triggered by event LTM2, that is, the first LTM event is event LTM2. Figures 4 to 7 correspond to the case where the MR MAC CE does not include the measurement of the candidate cell's beam or L1-RSRP or L1-SINR, or the MR MAC CE only includes the measurement of the serving cell's beam or L1-RSRP or L1-SINR. Figures 8 and 9 correspond to the case where the MR MAC CE (may) include the measurement of the candidate cell's beam or L1-RSRP or L1-SINR.

[0187] As shown in Figures 4 to 9, the MR MAC CE of this application embodiment includes at least one of the following domains:

[0188] - Reported Configuration ID: For example, 3 bits or 4 bits; corresponding to the higher-level parameter (e.g., RRC parameter) ltm-CSI-ReportConfigId-r18 or LTM-CSI-ReportConfigId-r18; its value is equal to the higher-level parameter (e.g., RRC parameter) ltm-CSI-ReportConfigId-r18 or LTM-CSI-ReportConfigId-r18 or equal to ltm-CSI-ReportConfigId-r18 or LTM-CSI-ReportConfigId-r18-1;

[0189] - Whether the entry condition or the exit condition is met: For example, with 1 bit, an E / L value of 1 indicates that the entry condition is met, and an E / L value of 0 indicates that the exit condition is met; or vice versa.

[0190] - Reference signal (SSB / CSI-RS) index, such as a 5-bit reference signal ID, or a 6 or 7-bit SSB index or CSI-RS resource ID;

[0191] - Meeting or not meeting the LTM event: For example, with 1 bit, T=1 indicates that the LTM event (corresponding to the reported configuration ID) is met, and T=0 indicates that the LTM event (corresponding to the reported configuration ID) is not met; or vice versa;

[0192] -7 bits of L1-RSRP absolute value;

[0193] -4-bit L1-RSRP differential value: L1-RSRP differential value with reference to the threshold configured by RRC;

[0194] - Serving cell index: 5 bits;

[0195] - Reserved bit R.

[0196] Figures 10 and 11 are some examples of the format of the MR MAC CE according to embodiments of this application, showing the case where the measurement report is triggered by event LTM3, event LTM4, or event LTM5, that is, the first LTM event is event LTM3, event LTM4, or event LTM5. In Figure 10, the number of bits of the L1-RSRP of the first beam is determined according to the number P of beams included in the MR MAC CE. The left side shows the format of the MR MAC CE when P is 1, and the right side shows the format of the MR MAC CE when P is greater than 1. Figure 11 corresponds to the case where the L1-RSRP of the first beam uses a 7-bit absolute value. In the second beam, the L1-RSRP of the strongest second beam uses a 7-bit absolute value, and the L1-RSRP of the other second beams refers to the L1-RSRP of the strongest second beam and uses a 4-bit differential value.

[0197] In Figures 10 and 11, the same fields as those in Figures 4 to 9 have the same meaning, which will not be repeated here.

[0198] This application also provides a method for receiving measurement reports, described from the perspective of a network device. This method is a network device-side processing method corresponding to the method in the previous embodiments, and the content is the same as in the previous embodiments, so it will not be described again.

[0199] Figure 12 is a schematic diagram of a measurement reporting receiving method according to an embodiment of this application. As shown in Figure 12, the method includes:

[0200] 1210: The network device receives a Layer 1 measurement report from a terminal device, the Layer 1 measurement report including a first MAC CE or a second MAC CE or a scheduling request, the first MAC CE or the second MAC CE including at least an L1-RSRP or L1-SINR of the first beam that satisfies a first LTM event.

[0201] In some embodiments, the scheduling request is a scheduling request for Layer 1 measurement reporting.

[0202] In some embodiments, the network device may also configure measurement reporting related information for the terminal device, such as the first LTM event in the foregoing embodiment and parameters such as threshold, offset, time to trigger (TTT) involved in the first LTM event, the value of N in the foregoing embodiment, and the configured values ​​(first value, second value) in the foregoing embodiment.

[0203] In the above embodiments, the network device can perform the above configuration by sending configuration information to the terminal device. In addition, the network device can also send downlink data or downlink signals or downlink channels to the terminal device, and receive uplink data, uplink signals or uplink channels from the terminal device.

[0204] In the above implementation, the first MAC CE can be a non-truncated MR MAC CE, and / or the second MAC CE can be a truncated MR MAC CE. Both can use the same format. The second MAC CE can be the first M bytes of the first MAC CE. The second MAC CE can use the first format, or the second MAC CE can use either the first or second format based on available resources, etc. The relevant content regarding the first and second MAC CEs has been described in the previous embodiments and will not be repeated here.

[0205] It is worth noting that Figure 12 above is only a schematic illustration of an embodiment of this application, but this application is not limited thereto. For example, other operations may be added or some operations may be removed. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description in Figure 12 above.

[0206] According to the method in the embodiments of this application, the event-triggered Layer 1 measurement report includes at least the measurement results of the trigger beam and specifies the content and format of the measurement report, ensuring that the network can understand the content of the measurement report and that the content and format of the measurement report are consistent with the terminal's understanding, thereby enabling the network to make appropriate decisions based on the measurement report.

[0207] Second aspect of the embodiments

[0208] This application provides a measurement reporting device, which may be, for example, a terminal device, or one or more components or parts configured on a terminal device. Since the principle by which this device solves the problem is the same as the method shown in FIG3 of the first aspect embodiment, its specific implementation can refer to the implementation of the method shown in FIG3 of the first aspect embodiment, and the similarities will not be repeated.

[0209] Figure 13 is a schematic diagram of a measurement reporting device according to an embodiment of this application. As shown in Figure 13, the device 1300 includes:

[0210] Triggering unit 1310 triggers layer 1 measurement reporting when at least one first beam satisfies a first LTM event;

[0211] The processing unit 1320 generates a first MAC CE or a second MAC CE or triggers a scheduling request, wherein the first MAC CE or the second MAC CE includes at least the L1-RSRP or L1-SINR of the first beam that satisfies the first LTM event.

[0212] In some embodiments, the first beam is an SSB or CSI-RS configured for the candidate cell, or a beam of the serving cell.

[0213] In some embodiments, the first MAC CE is a non-truncated measurement reporting / reporting MAC CE; the second MAC CE is a truncated measurement reporting / reporting MAC CE.

[0214] In some embodiments, the processing unit 1220 generates a first MAC CE or a second MAC CE or triggers a scheduling request, including:

[0215] If the uplink shared channel (UL-SCH) resources are available for new transmissions, and as a result of logical channel priority (LCP), the UL-SCH resources are able to accommodate the first MAC CE plus its header, then the processing unit 1320 instructs the multiplexing and reassembly process to generate the first MAC CE.

[0216] Otherwise, if the UL-SCH resource is available for the new transmission, and as a result of LCP, the UL-SCH resource can accommodate the second MAC CE plus its subheading, then the processing unit 1320 instructs the multiplexing and assembly process to generate the second MAC CE;

[0217] Otherwise, the processing unit 1320 triggers the scheduling request.

[0218] In the above embodiment, the second MAC CE can be the first M bytes of the first MAC CE, where M is a positive integer greater than or equal to 1.

[0219] In other embodiments, the processing unit 1320 generates a first MAC CE or a second MAC CE or triggers a scheduling request, including:

[0220] If the UL-SCH resource is available for a new transmission, and as a result of LCP, the UL-SCH resource can accommodate the first MAC CE plus its header, then the processing unit 1320 instructs the multiplexing and assembly process to generate the first MAC CE;

[0221] Otherwise, if the UL-SCH resource is available for new transmission, and as a result of LCP, the UL-SCH resource is able to accommodate the second MAC CE in the first format plus its subheading, then the processing unit 1320 instructs the multiplexing and assembly process to generate the second MAC CE in the first format;

[0222] Otherwise, if the UL-SCH resource is available for new transmission, and as a result of LCP, the UL-SCH resource is able to accommodate the second MAC CE in the second format plus its subheading, then the processing unit 1320 instructs the multiplexing and assembly process to generate the second MAC CE in the second format;

[0223] Otherwise, the processing unit 1320 triggers the scheduling request.

[0224] In the above embodiments, the second MAC CE of the first format or the second format is the first M bytes of the first MAC CE, where M is a positive integer greater than or equal to 1.

[0225] In the above embodiments, the number of bytes of the second MAC CE in the first format is greater than the number of bytes of the second MAC CE in the second format; and / or, the second MAC CE in the second format only includes the L1-RSRP of the first beam that satisfies the first LTM event, and the second MAC CE in the first format at least includes the measurement or L1-RSRP of the second beam that does not satisfy the first LTM event or the measurement or L1-RSRP of the serving cell's beam.

[0226] In some embodiments, the first MAC CE includes beam information of P beams, P≤N, where N is configured by the network device; wherein, the P beams are the beams of the serving cell and / or the beams of the candidate cells; and / or, the P beams include a first beam that satisfies a first LTM event, or include a first beam that satisfies a first LTM event and a second beam that does not satisfy the first LTM event.

[0227] In the embodiments of this application, the first LTM event may be event LTM2, event LTM3, event LTM4, or event LTM5.

[0228] In this embodiment of the application, the serving cell may be a PCell, a special cell, or a serving cell that includes a special cell and a secondary cell.

[0229] In some embodiments, when the first LTM event is event LTM2, the first MAC CE does not include beam information of the candidate cell's beam, or only includes beam information of the serving cell's beam; or, when the first LTM event is event LTM2, the first MAC CE includes beam information of the candidate cell's beam.

[0230] In the above embodiments, beam information may include at least one of the following: measurement quantity, L1-RSRP, and L1-SINR.

[0231] In the embodiments of this application, the L1-RSRP of the first beam uses a 7-bit absolute value and / or a 4-bit differential value.

[0232] For example, the number of bits of the L1-RSRP of the first beam is determined based on the number P of beams included in the first MAC CE.

[0233] In the example above, the number of bits of the L1-RSRP of the first beam is determined based on the number P of beams included in the first MAC CE, including at least one of the following:

[0234] If P is 1, that is, the first MAC CE includes the beam information of one beam, the L1-RSRP of the first beam uses 7 bits of absolute value;

[0235] If P is greater than 1, that is, the first MAC CE includes beam information of multiple beams, the L1-RSRP of the first beam uses a 4-bit differential value, the L1-RSRP of the strongest second beam in the second beam uses a 7-bit absolute value, and the L1-RSRP of the other second beams refers to the L1-RSRP of the strongest second beam and uses a 4-bit differential value.

[0236] If P is greater than 1, that is, the first MAC CE includes beam information of multiple beams, the L1-RSRP of the first beam uses a 7-bit absolute value, and the L1-RSRP of the second beam refers to the L1-RSRP of the first beam using a 4-bit differential value.

[0237] For example, the L1-RSRP of the first beam uses a 7-bit absolute value; in the second beam, the L1-RSRP of the strongest second beam uses a 7-bit absolute value, and the L1-RSRP of the other second beams refers to the L1-RSRP of the strongest second beam, using a 4-bit differential value.

[0238] For example, the L1-RSRP of the first beam uses a 7-bit absolute value; the second beam references the L1-RSRP of the first beam and uses a 4-bit differential value of the L1-RSRP, along with information indicating the sign relative to the 7-bit absolute value.

[0239] For example, the L1-RSRP of the first beam uses a 7-bit absolute value and a 4-bit differential value that references the L1-RSRP of the strongest beam; the second beam references the L1-RSRP of the strongest beam and uses a 4-bit differential value for the L1-RSRP.

[0240] For example, the first value of the L1-RSRP reference configuration for the first beam uses a 4-bit differential value; the L1-RSRP of the second beam references the first value of the above configuration and uses a 4-bit differential value.

[0241] For example, the L1-RSRP of the first beam uses a 7-bit absolute value; the L1-RSRP of the second beam reference configuration uses a 4-bit differential value.

[0242] In some embodiments, as shown in FIG13, the measurement reporting device further includes a sending unit 1330 and a receiving unit 1340. The sending unit 1330 may send, for example, the aforementioned first MAC CE or second MAC CE or scheduling request to the network device, and may also send other uplink information, uplink signals, or uplink channels to the network device. The receiving unit 1340 is used to receive information from the network device, such as configuration information, downlink data, downlink signals, or downlink channels. For details, please refer to related technologies, which will not be elaborated here.

[0243] In the above embodiments, the configuration information may include, for example, measurement reporting related information configured by the network device for the terminal device, including but not limited to: the first LTM event of the aforementioned embodiments and the threshold, offset, time to trigger and other parameters involved in the first LTM event, the value of N in the aforementioned embodiments, and the configuration values ​​(first value, second value) of the aforementioned embodiments.

[0244] In the above embodiments, the first MAC CE can be a non-truncated MR MAC CE, and / or the second MAC CE can be a truncated MR MAC CE. Both can use the same format. The second MAC CE can be the first M bytes of the first MAC CE. The second MAC CE can use a first format, or the second MAC CE can use either a first format or a second format based on available resources, etc. The relevant details regarding the first and second MAC CEs have been described in the preceding embodiments and will not be repeated here.

[0245] In the above embodiments, the processing unit 1320 can also control the operation of the triggering unit 1310, the sending unit 1330 and the receiving unit 1340. For details, please refer to the relevant technology, which will not be repeated here.

[0246] This application also provides a measurement reporting receiving device, which can be a network device or a component or part of a network device. Since the principle by which this device solves the problem is the same as the method shown in FIG. 13 of the first aspect embodiment, its specific implementation can refer to the implementation of the method shown in FIG. 13 of the first aspect embodiment, and the similarities will not be repeated.

[0247] Figure 14 is a schematic diagram of a measurement reporting receiving device according to an embodiment of this application. As shown in Figure 14, the device 1400 includes:

[0248] The receiving unit 1410 receives a Layer 1 measurement report from the terminal device. The Layer 1 measurement report includes a first MAC CE or a second MAC CE or a scheduling request. The first MAC CE or the second MAC CE includes at least the L1-RSRP or L1-SINR of the first beam that satisfies the first LTM event.

[0249] In some embodiments, as shown in FIG14, the device 1400 further includes:

[0250] The processing unit 1420 performs relevant configurations for the terminal device.

[0251] In some embodiments, as shown in FIG14, the device 1400 further includes:

[0252] The transmitting unit 1430 transmits information to the terminal device, such as configuration information, downlink data, downlink signals, or downlink channels.

[0253] The relevant information regarding configuration has already been explained above, and will not be repeated here.

[0254] In the above embodiments, the processing unit 1420 can also control the operation of the receiving unit 1410 and the sending unit 1430. For details, please refer to the relevant technology, which will not be repeated here.

[0255] It is worth noting that the above description only covers the components or modules relevant to this application, but this application is not limited thereto. The aforementioned apparatus may also include other components or modules, and for details regarding these components or modules, please refer to related technologies. Furthermore, the aforementioned components or modules can be implemented using hardware facilities such as processors, memory, transmitters, and receivers; this application does not impose any limitations on this.

[0256] According to the apparatus of this application embodiment, the event-triggered Layer 1 measurement report includes at least the measurement results of the trigger beam and specifies the content and format of the measurement report, ensuring that the network can understand the content of the measurement report and that the content and format of the measurement report are consistent with the terminal's understanding, thereby enabling the network to make appropriate decisions based on the measurement report.

[0257] Fourth aspect of the embodiment

[0258] This application also provides a communication system, including network equipment and terminal equipment.

[0259] Figure 15 is a schematic diagram of a communication system according to an embodiment of this application, illustrating the case of a terminal device and a network device as examples. As shown in Figure 15, the communication system 1500 may include a network device 1501 and terminal devices 1502 and 1503. For simplicity, Figure 15 only illustrates the case of two terminal devices and one network device, but the embodiments of this application are not limited to this.

[0260] In this embodiment of the application, network device 1501 and terminal devices 1502 and 1503 can transmit existing services or services that can be implemented in the future. For example, these services may include, but are not limited to: enhanced mobile broadband (eMBB), massive machine-type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0261] It is worth noting that Figure 15 shows that both terminal devices 1502 and 1503 are within the coverage area of ​​network device 1501, but this application is not limited to this. Both terminal devices 1502 and 1503 may be outside the coverage area of ​​network device 1501, or one terminal device 1502 may be within the coverage area of ​​network device 1501 while the other terminal device 1503 may be outside the coverage area of ​​network device 1501.

[0262] In some embodiments, the terminal device includes the apparatus 1300 described in the second aspect embodiment, configured to perform the method described in FIG. 3 of the first aspect embodiment. Since the method has been described in detail in the first aspect embodiment, its contents are incorporated herein and will not be repeated.

[0263] In some embodiments, the network device includes the apparatus 1400 described in the second aspect embodiment, configured to perform the method described in FIG. 12 of the first aspect embodiment. Since the method has been described in detail in the first aspect embodiment, its contents are incorporated herein and will not be repeated.

[0264] This application also provides a terminal device, which may be a UE, but this application is not limited to this and may also be other terminal devices.

[0265] Figure 16 is a schematic diagram of a terminal device according to an embodiment of this application. As shown in Figure 16, the terminal device 1600 may include a processor 1601 and a memory 1602; the memory 1602 stores data and programs and is coupled to the processor 1601. It is worth noting that this figure is exemplary; other types of structures may also be used to supplement or replace this structure to implement telecommunications functions or other functions.

[0266] In some embodiments, the functionality of the apparatus 1300 of the second aspect embodiment can be integrated into the processor 1601, wherein the processor 1601 can be configured to execute a program to implement the method described in FIG3 of the first aspect embodiment, the contents of which are incorporated herein and will not be repeated here.

[0267] In other embodiments, the apparatus 1300 of the second aspect embodiment may be configured separately from the processor 1601. For example, the apparatus 1300 of the second aspect embodiment may be configured as a chip connected to the processor 1601, and the functions of the apparatus 1300 of the second aspect embodiment may be realized through the control of the processor 1601.

[0268] As shown in Figure 16, the terminal device 1600 may further include: a communication module 1603, an input unit 1604, a display 1605, and a power supply 1606. The functions of these components are similar to those in the prior art and will not be described in detail here. It is worth noting that the terminal device 1600 does not necessarily include all the components shown in Figure 16; these components are not essential. Furthermore, the terminal device 1600 may also include components not shown in Figure 16, which can be referred to in related technologies.

[0269] This application also provides a network device, which may be, for example, a base station, but this application is not limited to this and may also be other network devices.

[0270] Figure 17 is a schematic diagram of the network device according to an embodiment of this application. As shown in Figure 17, the network device 1700 may include a processor 1701 and a memory 1702; the memory 1702 is coupled to the processor 1701. The memory 1702 can store various data; in addition, it also stores information processing programs, and executes the programs under the control of the processor 1701.

[0271] In some embodiments, the functionality of the apparatus 1400 of the second aspect embodiment can be integrated into the processor 1701, wherein the processor 1701 can be configured to execute a program to implement the method described in FIG. 12 of the first aspect embodiment, the contents of which are incorporated herein and will not be repeated here.

[0272] In other embodiments, the apparatus 1400 of the second aspect embodiment may be configured separately from the processor 1701. For example, the apparatus 1400 of the second aspect embodiment may be configured as a chip connected to the processor 1701, and the functions of the apparatus 1400 of the second aspect embodiment may be realized through the control of the processor 1701.

[0273] In addition, as shown in Figure 17, network device 1700 may also include transceivers 1703 and 1704. The functions of these components are similar to those in the prior art and will not be described again here. It is worth noting that network device 1700 does not necessarily need to include all the components shown in Figure 17; furthermore, network device 1700 may also include components not shown in Figure 17, which can be referred to in the prior art.

[0274] This application also provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to perform the method described in FIG3 of the first aspect embodiment.

[0275] This application also provides a storage medium storing a computer program, wherein the computer program causes a terminal device to perform the method described in FIG3 of the first aspect embodiment.

[0276] This application also provides a computer program, wherein when the program is executed in a network device, the program causes the network device to perform the method described in FIG12 of the first aspect embodiment.

[0277] This application also provides a storage medium storing a computer program, wherein the computer program causes a network device to perform the method described in FIG12 of the first aspect embodiment.

[0278] The apparatus and methods described above in this application can be implemented in hardware or in combination with software. This application relates to a computer-readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to implement the various methods or steps described above. This application also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memory, etc.

[0279] The methods / apparatus described in conjunction with the embodiments of this application can be directly embodied in hardware, software modules executed by a processor, or a combination of both. For example, one or more and / or combinations of one or more functional block diagrams shown in the figures can correspond to various software modules in a computer program flow, or to various hardware modules. These software modules can correspond to the various steps shown in the figures, respectively. These hardware modules can be implemented, for example, using a field-programmable gate array (FPGA) to embed these software modules.

[0280] The software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to the processor, enabling the processor to read information from and write information to the storage medium; or the storage medium can be an integral part of the processor. The processor and storage medium can reside in an ASIC. The software module can be stored in the memory of a 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 high-capacity MEGA-SIM card or a high-capacity flash memory device, the software module can be stored in the MEGA-SIM card or the high-capacity flash memory device.

[0281] One or more and / or one or more combinations of functional blocks described in the accompanying drawings can be implemented as a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof for performing the functions described herein. One or more and / or one or more combinations of functional blocks described in the accompanying drawings can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0282] The present application has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present application. Those skilled in the art can make various modifications and variations to the present application based on its spirit and principles, and these modifications and variations are also within the scope of the present application.

[0283] Regarding the implementation methods including the above embodiments, the following notes are also disclosed:

[0284] 1. A measurement reporting method, applied to a terminal device, wherein the method includes:

[0285] The terminal device triggers Layer 1 measurement reporting when at least one first beam satisfies the first LTM event;

[0286] The terminal device generates a first MAC CE or a second MAC CE or triggers a scheduling request, wherein the first MAC CE or the second MAC CE includes at least an L1-RSRP or L1-SINR of the first beam that satisfies the first LTM event.

[0287] 2. A method for receiving measurement reports, applied to a network device, wherein the method includes:

[0288] The network device receives Layer 1 measurement reports sent by the terminal device;

[0289] The Layer 1 measurement reporting includes a first MAC CE or a second MAC CE or a trigger scheduling request. The first MAC CE or the second MAC CE includes at least the L1-RSRP or L1-SINR of the first beam that satisfies the first LTM event.

[0290] 3. The method according to Appendix 1 or 2, wherein,

[0291] The first beam is either an SSB or CSI-RS configured for the candidate cell, or a beam of the serving cell.

[0292] 4. A terminal device, comprising a memory and a processor, the memory storing a computer program, wherein the processor is configured to execute the computer program to implement the following method:

[0293] Layer 1 measurement reporting is triggered when at least one first beam satisfies the first LTM event;

[0294] Generate a first MAC CE or a second MAC CE or trigger a scheduling request, wherein the first MAC CE or the second MAC CE includes at least the L1-RSRP or L1-SINR of the first beam that satisfies the first LTM event.

[0295] 5. A network device, comprising a memory and a processor, the memory storing a computer program, wherein the processor is configured to execute the computer program to implement the following method:

[0296] Receive Layer 1 measurement reports sent by terminal devices;

[0297] The Layer 1 measurement reporting includes a first MAC CE or a second MAC CE or a trigger scheduling request. The first MAC CE or the second MAC CE includes at least the L1-RSRP or L1-SINR of the first beam that satisfies the first LTM event.

[0298] 6. A communication system, wherein the communication system comprises the network device described in Appendix 5 and the terminal device described in Appendix 4.

Claims

1. A measurement reporting apparatus, configured to be arranged in a terminal device, wherein, The device includes: A triggering unit that triggers Layer 1 measurement reporting when at least one first beam satisfies a first LTM event; The processing unit generates a first MAC CE or a second MAC CE or triggers a scheduling request, wherein the first MAC CE or the second MAC CE includes at least the L1-RSRP or L1-SINR of the first beam that satisfies the first LTM event.

2. The apparatus according to claim 1, wherein, The first MAC CE is a non-truncated measurement reporting / reporting MAC CE; and / or, The second MAC CE is the truncated measurement reporting / reporting MAC CE.

3. The apparatus of claim 1, wherein, The processing unit generates a first MAC CE or a second MAC CE or triggers a scheduling request, including: If the uplink shared channel (UL-SCH) resource is available for a new transmission, and as a result of logical channel priority (LCP), the UL-SCH resource is capable of accommodating a first MAC CE plus its header, then the processing unit instructs the multiplexing and reassembly process to generate the first MAC CE. Otherwise, if the UL-SCH resource is available for the new transmission, and as a result of LCP, the UL-SCH resource is capable of accommodating the second MAC CE plus its subheading, then the processing unit instructs the multiplexing and reassembly process to generate the second MAC CE; Otherwise, the processing unit triggers the scheduling request.

4. The apparatus according to claim 3, wherein, The second MAC CE is the first M bytes of the first MAC CE, where M is a positive integer greater than or equal to 1.

5. The apparatus of claim 1, wherein, The processing unit generates a first MAC CE or a second MAC CE or triggers a scheduling request, including: If the UL-SCH resource is available for a new transmission, and as a result of LCP, the UL-SCH resource can accommodate a first MAC CE plus its header, then the processing unit instructs the multiplexing and reassembly process to generate the first MAC CE; Otherwise, if the UL-SCH resource is available for new transmission, and as an LCP result, the UL-SCH resource is capable of accommodating a second MAC CE in the first format plus its subheading, then the processing unit instructs the multiplexing and reassembly process to generate a second MAC CE in the first format; Otherwise, if the UL-SCH resource is available for new transmission, and as an LCP result, the UL-SCH resource is capable of accommodating a second MAC CE in a second format plus its subheading, then the processing unit instructs the multiplexing and assembly process to generate a second MAC CE in a second format. Otherwise, the processing unit triggers the scheduling request.

6. The apparatus according to claim 5, wherein, The second MAC CE in either the first or second format is the first M bytes of the first MAC CE, where M is a positive integer greater than or equal to 1.

7. The apparatus according to claim 6, wherein, The second MAC CE in the first format has more bytes than the second MAC CE in the second format; and / or, The second MAC CE of the second format includes only the L1-RSRP of the first beam that satisfies the first LTM event, while the second MAC CE of the first format includes at least the measurement or L1-RSRP of the second beam that does not satisfy the first LTM event, or the measurement or L1-RSRP of the serving cell's beam.

8. The apparatus according to claim 1, wherein, The first MAC CE includes beam information for P beams, where P ≤ N, and N is configured by the network device. in, The P beams are the beams of the serving cell and / or the beams of the candidate cells; and / or The P beams include either the first beam that satisfies the first LTM event, or the first beam that satisfies the first LTM event and the second beam that does not satisfy the first LTM event.

9. The apparatus according to claim 8, wherein, The serving cell is a PCell, or a special cell, or a serving cell that includes both special cells and secondary cells.

10. The apparatus according to claim 1, wherein, The first LTM event is either event LTM2, event LTM3, event LTM4, or event LTM5.

11. The apparatus according to claim 1, wherein, When the first LTM event is event LTM2, the first MAC CE does not include beam information of the candidate cell's beam, or only includes beam information of the serving cell's beam; or, In the case that the first LTM event is event LTM2, the first MAC CE includes the beam information of the candidate cell's beam.

12. The apparatus according to claim 11, wherein, The beam information includes at least one of the following: measurement quantity, L1-RSRP, and L1-SINR.

13. The apparatus according to claim 1, wherein, The L1-RSRP of the first beam uses 7 bits of absolute value and / or 4 bits of differential value.

14. The apparatus according to claim 13, wherein, The number of bits of L1-RSRP of the first beam is determined according to the number P of beams included in the first MAC CE.

15. The apparatus of claim 14, wherein, The number of bits of the L1-RSRP of the first beam is determined based on the number P of beams included in the first MAC CE, and includes at least one of the following: If P is 1, the first MAC CE includes beam information of one beam, and the L1-RSRP of the first beam uses a 7-bit absolute value. If P is greater than 1, the first MAC CE includes beam information of multiple beams. The L1-RSRP of the first beam uses a 4-bit differential value. Among the second beams, the L1-RSRP of the strongest second beam uses a 7-bit absolute value, and the L1-RSRP of the other second beams refers to the L1-RSRP of the strongest second beam and uses a 4-bit differential value. If P is greater than 1, the first MAC CE includes beam information of multiple beams, the L1-RSRP of the first beam uses a 7-bit absolute value, and the L1-RSRP of the second beam references the L1-RSRP of the first beam using a 4-bit differential value.

16. The apparatus according to claim 13, wherein, The L1-RSRP of the first beam uses a 7-bit absolute value; In the second beam, the L1-RSRP of the strongest second beam uses a 7-bit absolute value, while the L1-RSRP of the other second beams refers to the L1-RSRP of the strongest second beam and uses a 4-bit differential value.

17. The apparatus according to claim 13, wherein, The L1-RSRP of the first beam uses a 7-bit absolute value; The second beam references the L1-RSRP of the first beam, using a 4-bit differential value of the L1-RSRP and information indicating the sign of the absolute value relative to the 7 bits.

18. The apparatus according to claim 13, wherein, The L1-RSRP of the first beam uses a 7-bit absolute value, and a 4-bit differential value is used to reference the L1-RSRP of the strongest beam. The second beam references the L1-RSRP of the strongest beam and uses a 4-bit differential value of the L1-RSRP.

19. The apparatus according to claim 13, wherein, The first value of the L1-RSRP reference configuration of the first beam is a 4-bit differential value; The L1-RSRP of the second beam is referenced to the first value of the configuration and uses a 4-bit differential value.

20. The apparatus according to claim 13, wherein, The L1-RSRP of the first beam uses a 7-bit absolute value; The second value of the L1-RSRP reference configuration for the second beam uses a 4-bit differential value of the L1-RSRP.

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