Terminal and communication method

Abstract

To change the applicability of artificial intelligence and a machine learning model for mobility.SOLUTION: A terminal includes a receiving unit that receives a CSI (Channel State Information) reporting configuration including a prediction configuration from a base station, a transmission unit that transmits applicability of the CSI reporting configuration to the base station, and a control unit that detects a change in the applicability of the CSI reporting configuration, and the control unit activates the applicable CSI reporting configuration to perform prediction.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a terminal and a communication method in a communication system. [Background technology]

[0002] 3GPP (registered trademark) (3rd Generation Partnership Project) is currently studying a wireless communication system called 5G or NR (New Radio) (hereinafter, this wireless communication system will be referred to as "5G" or "NR") in order to achieve even larger system capacity, even faster data transmission speeds, and even lower latency in wireless sections. Various wireless technologies are being studied for 5G to meet the requirements of achieving a throughput of 10 Gbps or more while reducing latency in wireless sections to 1 ms or less.

[0003] In NR, a network architecture is being considered that includes 5GC (5G Core Network), which corresponds to EPC (Evolved Packet Core), which is the core network in the network architecture of LTE (Long Term Evolution), and NG-RAN (Next Generation - Radio Access Network), which corresponds to E-UTRAN (Evolved Universal Terrestrial Radio Access Network), which is the RAN (Radio Access Network) in the network architecture of LTE (e.g., Non-Patent Document 1).

[0004] Furthermore, various requirements are being considered for the next generation, 6G, such as ultra broadband communication, mission critical communication, ultra massive connection, universal coverage, intelligent connection, and ubiquitous sensing.

[0005] To achieve these requirements, new concepts include extensibility (e.g., making it more future-proof), easy-operational, customizable (e.g., making it easier to operate), and sustainability (e.g., reducing costs, having a more robust configuration, and being resilient). Also, guaranteed communication, which always guarantees a minimum level of performance, is being considered.

[0006] Furthermore, the use of artificial intelligence / machine learning models (AI (Artificial Intelligence) / ML (Machine Learning) models) to perform various types of control such as network management or automation is being considered (for example, Non-Patent Document 2). [Prior art documents] [Non-patent literature]

[0007] [Non-Patent Document 1] 3GPP TS 23.501 V18.7.0 (2024-09) [Non-patent document 2] 3GPP TSG-RAN Meeting #105 RP-242393, Melbourne, Australia, 9-12 September 2024 Summary of the Invention [Problem to be solved by the invention]

[0008] AIML may be supported for mobility. The UE is assumed to receive the predicted configuration from the BS via an RRC message. Here, additional conditions may be changed in the UE-side AIML, and applicability may change.

[0009] The present invention has been made in view of the above points, and aims to change the applicability of artificial intelligence and machine learning models for mobility. [Means for solving the problem]

[0010] According to the disclosed technique, a terminal is provided that includes: a receiving unit that receives a CSI (Channel State Information) reporting configuration including a prediction configuration from a base station; a transmitting unit that transmits applicability of the CSI reporting configuration to the base station; and a control unit that detects a change in the applicability of the CSI reporting configuration, wherein the control unit activates the applicable CSI reporting configuration to perform prediction. [Effects of the Invention]

[0011] The disclosed technology allows for the applicability of artificial intelligence and machine learning models for mobility to be modified. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a diagram illustrating an example of a communication system. [Figure 2] FIG. 1 is a diagram illustrating an example of a communication system in a roaming environment. [Figure 3] FIG. 10 is a sequence diagram illustrating an example of applicability change according to an embodiment of the present invention. [Figure 4] FIG. 2 is a sequence diagram illustrating an example (1) of prediction setting according to an embodiment of the present invention. [Figure 5] FIG. 10 is a sequence diagram illustrating an example (2) of prediction setting according to the embodiment of the present invention. [Figure 6] FIG. 10 is a sequence diagram illustrating an example (3) of prediction setting according to an embodiment of the present invention. [Figure 7] FIG. 10 is a sequence diagram illustrating an example (4) of prediction setting according to an embodiment of the present invention. [Figure 8] FIG. 10 is a sequence diagram illustrating an example (5) of prediction setting according to an embodiment of the present invention. [Figure 9] FIG. 10 is a sequence diagram illustrating an example (6) of prediction setting according to an embodiment of the present invention. [Figure 10] FIG. 10 is a sequence diagram illustrating an example (7) of prediction setting according to an embodiment of the present invention. [Figure 11] 2 is a diagram illustrating an example of a functional configuration of a base station 10 and a network node 30 according to an embodiment of the present invention. [Figure 12] FIG. 2 is a diagram illustrating an example of a functional configuration of a terminal 20 according to the embodiment of the present invention. [Figure 13] 1 is a diagram illustrating an example of a hardware configuration of a base station 10 and a terminal 20 according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that the embodiment described below is an example, and the embodiment to which the present invention is applied is not limited to the following embodiment.

[0014] In the operation of the wireless communication system according to the embodiment of the present invention, existing technologies are used as appropriate. However, the existing technologies are, for example, but not limited to, the existing LTE. Furthermore, the term "LTE" used in this specification has a broad meaning including LTE-Advanced, a system subsequent to LTE-Advanced (e.g., NR), or a wireless LAN (Local Area Network), unless otherwise specified.

[0015] Furthermore, in the embodiments of the present invention, when radio parameters etc. are "configured," it may mean that predetermined values ​​are pre-configured, or that radio parameters notified from the network node 30 or the terminal 20 are set.

[0016] Fig. 1 is a diagram illustrating an example of a communication system. As shown in Fig. 1, the communication system is composed of a UE, which is a terminal 20, and multiple network nodes 30. Hereinafter, it is assumed that one network node 30 corresponds to each function, but multiple functions may be realized by one network node 30, or multiple network nodes 30 may realize one function. Furthermore, the "connection" described below may be a logical connection or a physical connection.

[0017] The RAN (Radio Access Network) is a network node 30 having a radio access function, which may include a base station 10, and is connected to a UE, an AMF (Access and Mobility Management Function), and a UPF (User plane function). The AMF is a network node 30 having functions such as terminating the RAN interface, terminating the NAS (Non-Access Stratum), and performing registration management, connection management, reachability management, and mobility management. The UPF is a network node 30 having functions such as a PDU (Protocol Data Unit) session point to the outside that interconnects with a DN (Data Network), packet routing and forwarding, and user plane QoS (Quality of Service) handling. The UPF and the DN constitute a network slice. In the wireless communication network according to the embodiment of the present invention, multiple network slices are constructed.

[0018] The AMF is connected to the UE, RAN, SMF (Session Management function), NSSF (Network Slice Selection Function), NEF (Network Exposure Function), NRF (Network Repository Function), UDM (Unified Data Management), AUSF (Authentication Server Function), PCF (Policy Control Function), and AF (Application Function). The AMF, SMF, NSSF, NEF, NRF, UDM, AUSF, PCF, and AF are network nodes 30 that are interconnected via interfaces based on their respective services: Namf, Nsmf, Nnssf, Nnef, Nnrf, Nudm, Nausf, Npcf, and Naf.

[0019] The SMF is a network node 30 that has functions such as session management, UE IP (Internet Protocol) address allocation and management, DHCP (Dynamic Host Configuration Protocol) function, ARP (Address Resolution Protocol) proxy, and roaming function. The NEF is a network node 30 that has a function of notifying other NFs (Network Functions) of capabilities and events. The NSSF is a network node 30 that has functions such as selecting a network slice to which a UE connects, determining allowed NSSAIs (Network Slice Selection Assistance Information), determining the NSSAI to be configured, and determining the AMF set to which the UE connects. The PCF is a network node 30 that has a function of controlling network policies. The AF is a network node 30 that has a function of controlling application servers. The NRF is a network node 30 that has a function of discovering NF instances that provide services. The UDM is a network node 30 that manages subscriber data and authentication data. The UDM is connected to a UDR (User Data Repository) that stores the data.

[0020] Fig. 2 is a diagram illustrating an example of a communication system in a roaming environment. As shown in Fig. 2, the network is composed of a UE, which is a terminal 20, and multiple network nodes 30. Hereinafter, it is assumed that one network node 30 corresponds to each function, but multiple functions may be realized by one network node 30, or multiple network nodes 30 may realize one function. Furthermore, the "connection" described below may be a logical connection or a physical connection.

[0021] The RAN is a network node 30 having a radio access function, and is connected to the UE, the AMF, and the UPF. The AMF is a network node 30 having functions such as RAN interface termination, NAS termination, registration management, connection management, reachability management, and mobility management. The UPF is a network node 30 having functions such as a PDU session point to the outside that interconnects with the DN, packet routing and forwarding, and user plane QoS handling. The UPF and the DN constitute a network slice. In the wireless communication network according to the embodiment of the present invention, multiple network slices are constructed.

[0022] The AMF is connected to the UE, RAN, SMF, NSSF, NEF, NRF, UDM, AUSF, PCF, AF, and SEPP (Security Edge Protection Proxy). The AMF, SMF, NSSF, NEF, NRF, UDM, AUSF, PCF, and AF are network nodes 30 that are interconnected via their respective service-based interfaces, Namf, Nsmf, Nnssf, Nnef, Nnrf, Nudm, Nausf, Npcf, and Naf.

[0023] The SMF is a network node 30 having functions such as session management, UE IP address allocation and management, DHCP function, ARP proxy, and roaming function. The NEF is a network node 30 having a function of notifying other NFs of capabilities and events. The NSSF is a network node 30 having functions such as selecting a network slice to which a UE connects, determining an allowed NSSAI, determining an NSSAI to be configured, and determining an AMF set to which a UE connects. The PCF is a network node 30 having a function of controlling network policies. The AF is a network node 30 having a function of controlling application servers. The NRF is a network node 30 having a function of discovering NF instances that provide services. The SEPP is a non-transparent proxy that filters control plane messages between PLMNs (Public Land Mobile Networks). The vSEPP shown in Figure 2 is the SEPP in the visited network, and the hSEPP is the SEPP in the home network.

[0024] As shown in Figure 2, a UE is in a roaming environment connected to a RAN and an AMF in a Visited PLMN (VPLMN). The VPLMN and a Home PLMN (HPLMN) are connected via a vSEPP and an hSEPP. The UE can communicate with a UDM in the HPLMN via the AMF in the VPLMN, for example.

[0025] In addition, in an NG-RAN (Next Generation Radio Access Network), a gNB, which is a RAN node, may have an architecture separated into a gNB-CU (Central Unit) and a gNB-DU (Distributed Unit). One gNB-CU may accommodate multiple gNB-DUs, and one gNB-DU may accommodate multiple cells.

[0026] The application of AIML to mobility is being considered, and it is expected that AIML will also be applied to mobility in 6G.

[0027] Applying AIML to mobility enhancement in RRC connected mode is being considered (see Non-Patent Document 2). For example, the following may be performed based on AIML. RRM (Radio Resource Management) measurement and event prediction Cell-level measurement prediction including intra- and inter-frequency · Cell beam measurement prediction for L3 mobility Handover failure prediction, RLF (Radio Link Failure) prediction Measurement event prediction

[0028] Other UE assistance information (UAI) may be used on the network side. Evaluation of AIML assisted mobility may consider trade-offs between handover performance and complexity. AIML assisted mobility may also consider testability, interoperability, impact on RRM requirements, and performance.

[0029] FIG. 3 is a sequence diagram for explaining an example of applicability change in an embodiment of the present invention. In step 1, the gNB sends a UECapabilityEnqiry to the UE. In step S, the UE sends a UECapabilityInformation to the gNB. The gNB may determine predicted settings and / or parameters of Option A and / or Option B based on the UECapabilityInformation. In step 3, the UE sends an RRCReconfiguration to the UE. Note that "prediction" and "inference" may be interchangeable.

[0030] RRCReconfiguration may allow User assistance information (UAI) as OtherConfig. RRCReconfiguration may also configure a full Channel State Information (CSI) reporting configuration (CSI-ReportConfig(Full)) as Option A, and / or other configurations (OtherConfig), partial CSI reporting configuration (CSI-ReportConfig(Partial)), and optionally associated IDs as Option B. The UE may check applicability based on RRCReconfiguration.

[0031] In step 4, the UE sends RRCReconfigurationComplete to the gNB. The UE may report applicability or non-applicability in the initial state together with a simple reason to the gNB by RRCReconfigurationComplete. Note that in step 4, the UE may also report applicability or non-applicability in the initial state together with a simple reason to the gNB by UAI.

[0032] Subsequently, the UE may perform prediction activation or deactivation. The UE and the gNB may exchange a CSI reporting configuration ID (CSI-ReportConfigID) applicable to periodic reporting of Option A. The UE and the gNB may exchange a CSI reporting configuration ID (CSI-ReportConfigID) applicable to aperiodic or quasi-persistent reporting of Option A activated by DCI or MAC-CE.

[0033] Subsequently, if the applicability changes, the UE may report the updated applicability to the gNB via the UAI. The updated applicability may indicate a transition from not applicable to applicable, or from applicable to not applicable. The gNB may determine the predicted configuration for Option B based on the change in applicability.

[0034] In step 5, the gNB sends an RRCReconfiguration to the UE including the applicable full CSI reporting configuration (CSI-ReportConfig(Full)) for Option B. In step 6, the UE sends an RRCReconfigurationComplete to the gNB including a confirmation of Option B.

[0035] Subsequently, the UE and the gNB may exchange a CSI reporting configuration ID (CSI-ReportConfigID) applicable to periodic reporting of Option B. The UE and the gNB may exchange a CSI reporting configuration ID (CSI-ReportConfigID) applicable to aperiodic or semi-persistent reporting of Option B activated by DCI or MAC-CE.

[0036] The following agreements have been reached on the F-LCM (Functional Life cycle management) procedures for the UE-side AIML model:

[0037] When a feature becomes inapplicable, the UE does not autonomously deactivate it. The NW is expected to deactivate an active feature if it receives a report of inapplicability from the UE.

[0038] Supports explicit reporting of applicability / non-applicability in the initial report, and subsequent reports may report only the applicability that has changed, along with an explicit reason for the change.

[0039] If option A is configured in step 3 for periodic CSI reporting, the UE shall activate the corresponding capability autonomously (i.e., without having to wait for RRCReconfiguration in step 5) once it reports the capability via RRCReconfigurationComplete in step 4.

[0040] The provided periodic CSI configuration should match the reported UE capabilities. In option B, the provided periodic CSI configuration may or may not match the reported UE capabilities.

[0041] The applicable features of semi-persistent and aperiodic CSI reporting are activated according to the legacy CSI framework. For example, semi-persistent reporting may be activated by the MAC-CE / DCI. Aperiodic CSI reporting may be activated by the DCI.

[0042] Upon receiving the full prediction configuration, the UE sends an initial applicability report in RRCReconfigurationComplete. A UAI may be sent to update the applicability. In option B, signaling may be performed, for example, in CSI-Report Config or otherconfig.

[0043] Upon receiving one or more full prediction configurations via an RRCReconfiguration message, the UE may maintain all full prediction configurations, whether applicable or not, until the network explicitly releases them.

[0044] Network-side additional conditions are network-side conditions that affect the dataset used to train the AI / ML function / model. For example, they may include:

[0045] A mapping relationship between set A and set B, including ordering to (a set of IDs, or resources) Consistency of downlink spatial domain transmit filters corresponding to beams in Set A and Set B QCL assumption - Model input and output order RS and Tx beams can be predefined Transmission power ·UE distribution Antenna height Deployment scenarios (e.g., ISD (Intersite Distance), Umi (Urban Micro), Uma (Urban Macro))

[0046] Additional UE-side conditions are UE-side conditions that affect the dataset used to train the AI / ML features / models. For example, they may include:

[0047] ·UE speed ·scenario Hardware capabilities

[0048] An associated ID is an ID used to identify a data set under certain additional network-side conditions, at least within a cell.

[0049] Model availability indicates whether a model of a particular function is available on the UE side.

[0050] Inference configuration is a configuration from the network to the UE, and the UE can perform inference using AI / ML functions / models. For example, the resource configuration for Set A and Set B for BM-Case 1 / 2 in CSI-ReportConfig may be the inference configuration.

[0051] Holding timer is the time period during which the UE assumes that the NW will not release resources for full predictive configuration even if they are reported as inapplicable.

[0052] Regarding the UE behavior upon activation / deactivation after step 3 of option A above, the following may be assumed:

[0053] Upon receiving one or more full prediction configurations via an RRCReconfiguration message, the UE shall maintain all full prediction configurations, whether applicable or not, until the network explicitly releases them.

[0054] Upon receiving the full predicted configuration, the UE sends an initial applicability report in an RRCReconfigurationComplete.

[0055] In the case of periodic CSI reporting (P), the UE autonomously activates the corresponding capability once it reports the capability via RRCReconfigurationComplete in step 4. That is, there is no need to wait for RRCReconfiguration in step 5.

[0056] The applicable functionalities semi-persistent (SP) and aperiodic CSI reporting (AP) are activated according to the legacy CSI framework. Semi-persistent reporting may be activated by the MAC-CE / DCI. Aperiodic CSI reporting may be activated by the DCI.

[0057] When a function becomes inapplicable (Applicable -> Inapplicable, hereinafter also referred to as A -> I), the UE does not autonomously deactivate the function. If the NW receives a report from the UE that the function is inapplicable, the NW may deactivate an active function.

[0058] After the initial applicability report in RRCRecofnigurationComplete (step 4), it may be specified how the UE decides to activate or deactivate when the full predictive configuration becomes applicable (Inapplicable -> Applicable, hereinafter also referred to as I->A).

[0059] Option 1: Behavior when one of multiple full prediction settings becomes applicable (I->A). Action 1-1) In the case of periodic CSI reporting (P), the UE autonomously activates applicable functions. Action 1-2) For semi-persistent (SP) and aperiodic CSI reporting (AP), the UE activates applicable functions according to the legacy CSI framework after reporting applicability changes. Semi-persistent reporting may be activated by MAC-CE / DCI. Aperiodic CSI reporting may be activated by DCI.

[0060] The advantages are that no extra signaling is required and there is low latency for activation. The network needs to continue reserving resources even if the corresponding predicted configuration is not applicable or can be applied after a long period of time.

[0061] Option 2: Behavior when one of multiple full prediction settings becomes applicable (I->A). Action 2-1) The UE may report a change in applicability. Operation 2-2) In the case of periodic CSI reporting (P), the UE activates the applicable function after receiving confirmation of the applicability change. Action 2-3) For semi-persistent (SP) and aperiodic CSI reporting (AP), the UE activates applicable functions according to the legacy CSI framework after receiving confirmation of the applicability change. Semi-persistent reporting may be activated by MAC-CE / DCI. Aperiodic CSI reporting may be activated by DCI.

[0062] The advantages are that the NW has the freedom to release CSI resources for predictive configuration, there is signaling overhead (back-and-forth for predictive configuration) to synchronize the applicability and validity of predictive configuration, and there is latency between I->A and actual activation.

[0063] Option 3: Actions that involve full prediction settings in Step 3. Operation 3-1) One or more timers, i.e., hold timers, are configured. Note that the hold timers may be included in the RRCReconfiguration. Action 3-2) Depending on whether the hold timer expires or not, the UE selects between option 1 and option 2. Hold timer never expires => May be the same as option 1. Hold timer expired => may be the same as option 2.

[0064] The advantage is that it is possible to balance the signaling overhead / latency to synchronize the applicability and validity of the predicted configuration, the latency between I->A and actual activation, and the freedom of the network in releasing resources for the inferred configuration.

[0065] Operation 1-1: Figure 4 is a sequence diagram for explaining an example (1) of a prediction configuration in an embodiment of the present invention. After application of the initial report via step 4 RRCReconfigurationComplete, the UE can autonomously activate the applicable function using periodic CSI reporting (P) if the corresponding full prediction configuration changes from inapplicable to applicable (I->A).

[0066] In step S101, the gNB sends a step 3 RRCReconfiguration to the UE, which may include other configurations indicating that UAI is allowed, such as periodic CSI reporting configuration #1 (P), semi-persistent CSI reporting configuration #2 (SP), and aperiodic CSI reporting configuration #3 (AP).

[0067] In step S102, the UE transmits RRCReconfigurationComplete to the gNB. The RRCReconfigurationComplete may include information indicating that CSI reporting configuration #1 is not applicable, CSI reporting configuration #2 is not applicable, and CSI reporting configuration #3 is not applicable. The network may maintain the non-applicable prediction configurations. That is, CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3 are maintained. Furthermore, the UE maintains CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3.

[0068] The UE may then autonomously activate CSI reporting configuration #1(P) if the CSI reporting configuration #1(P) is changed to applicable. Note that the UE may detect that the CSI reporting configuration is changed to applicable or to inapplicable.

[0069] Operation 1-2: Figure 5 is a sequence diagram for explaining example (2) of prediction configuration in an embodiment of the present invention. When one or more sets of full prediction configurations change from inapplicable to applicable (I->A) via Note 3 described below, the UE reports the change in applicability and may activate the applicable functions for semi-persistent (SP) and aperiodic CSI reporting (AP), and by legacy CSI activation after the report. The UE may report the change in applicability via UAI by default. In the legacy CSI framework, semi-persistent reporting may be activated by MAC-CE / DCI, and aperiodic CSI reporting may be activated by DCI.

[0070] In step S201, the gNB sends a step 3 RRCReconfiguration to the UE, which may include other configurations indicating that UAI is allowed, such as periodic CSI reporting configuration #1 (P), semi-persistent CSI reporting configuration #2 (SP), and aperiodic CSI reporting configuration #3 (AP).

[0071] In step S202, the UE transmits RRCReconfigurationComplete to the gNB. The RRCReconfigurationComplete may include information indicating that CSI reporting configuration #1 is not applicable, CSI reporting configuration #2 is not applicable, and CSI reporting configuration #3 is not applicable. The network may maintain the non-applicable prediction configurations. That is, CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3 are maintained. Furthermore, the UE maintains CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3.

[0072] Next, it is assumed that the UE has changed its CSI reporting configuration to be applicable to CSI reporting configuration #2 and to be applicable to CSI reporting configuration #3. In step S203, the UE transmits, for example via a UAI, information indicating that CSI reporting configuration #1 is not applicable, CSI reporting configuration #2 is applicable, and CSI reporting configuration #3 is applicable to the gNB. In step S204, the gNB may transmit, to the UE, an instruction to activate CSI reporting configuration #2 by MAC-CE or CSI reporting configuration #3 by DCI.

[0073] The UE may then activate CSI reporting configuration #2 (SP) or CSI reporting configuration #3 (AP) based on the instruction.

[0074] Operation 2-1: Figure 6 is a sequence diagram for explaining an example (3) of predictive configurations in an embodiment of the present invention. After the UE first reports applicability via RRCReconfigurationComplete (step 4), it can report a change in applicability if one or more sets of full predictive configurations change from inapplicable to applicable (I → A) via Note 3. The UE may not activate any of the full predictive configurations by itself. The UE may report the change in applicability via UAI by default.

[0075] In step S301, the gNB sends a step 3 RRCReconfiguration to the UE, which may include other configurations indicating that UAI is allowed, such as periodic CSI reporting configuration #1 (P), semi-persistent CSI reporting configuration #2 (SP), and aperiodic CSI reporting configuration #3 (AP).

[0076] In step S302, the UE transmits RRCReconfigurationComplete to the gNB. The RRCReconfigurationComplete may include information indicating that CSI reporting configuration #1 is not applicable, CSI reporting configuration #2 is not applicable, and CSI reporting configuration #3 is not applicable. The network may release the non-applicable prediction configurations. That is, CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3 are released. Furthermore, the UE maintains CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3.

[0077] Next, it is assumed that the UE has changed its CSI reporting configuration to be applicable to CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3. In step S303, the UE transmits, via a UAI, for example, information indicating that CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3 are applicable to the gNB.

[0078] Operation 2-2: Figure 7 is a sequence diagram for explaining example (4) of prediction configuration in an embodiment of the present invention. After receiving confirmation of the corresponding full prediction configuration from the NW via Note 2 described below, the UE may activate an applicable function for periodic CSI reporting (P). The UE may receive the confirmation via RRCReconfiguration by default.

[0079] In step S401, the gNB sends a step 3 RRCReconfiguration to the UE, which may include other configurations indicating that UAI is allowed, such as periodic CSI reporting configuration #1 (P), semi-persistent CSI reporting configuration #2 (SP), and aperiodic CSI reporting configuration #3 (AP).

[0080] In step S402, the UE transmits RRCReconfigurationComplete to the gNB. The RRCReconfigurationComplete may include information indicating that CSI reporting configuration #1 is not applicable, CSI reporting configuration #2 is not applicable, and CSI reporting configuration #3 is not applicable. The network may release the non-applicable prediction configurations. That is, CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3 are released. Furthermore, the UE maintains CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3.

[0081] Next, it is assumed that the UE has changed its CSI reporting configuration to be applicable to CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3. In step S403, the UE transmits, via a UAI, for example, information indicating that CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3 are applicable to the gNB.

[0082] The network may then resume CSI reporting configuration #1. In step S404, the gNB sends a confirmation to the UE, for example via RRCReconfiguration, that CSI reporting configuration #1(P) is applicable. The UE then activates CSI reporting configuration #1(P).

[0083] Operation 2-3: Figure 8 is a sequence diagram for explaining example (5) of prediction configuration in an embodiment of the present invention. After receiving confirmation for the corresponding full inference configuration from the NW via Note 2 and via the legacy CSI framework, the UE may activate applicable functions for semi-persistent (SP) and aperiodic CSI reporting (AP). The UE may receive the confirmation via RRCReconfiguration by default. In the legacy CSI framework, semi-persistent reporting may be activated by MAC-CE / DCI, and aperiodic CSI reporting may be activated by DCI.

[0084] In step S501, the gNB sends a step 3 RRCReconfiguration to the UE, which may include other configurations indicating that UAI is allowed, such as periodic CSI reporting configuration #1 (P), semi-persistent CSI reporting configuration #2 (SP), and aperiodic CSI reporting configuration #3 (AP).

[0085] In step S502, the UE transmits RRCReconfigurationComplete to the gNB. The RRCReconfigurationComplete may include information indicating that CSI reporting configuration #1 is not applicable, CSI reporting configuration #2 is not applicable, and CSI reporting configuration #3 is not applicable. The network may release the non-applicable prediction configurations. That is, CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3 are released. Furthermore, the UE maintains CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3.

[0086] Next, it is assumed that the UE has changed its CSI reporting configuration to be applicable to CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3. In step S503, the UE transmits, via a UAI, for example, information indicating that CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3 are applicable to the gNB.

[0087] Subsequently, the network may resume CSI reporting configuration #2 or CSI reporting configuration #3. In step S504, the gNB sends to the UE, for example via RRCReconfiguration, a confirmation that CSI reporting configuration #2 (SP) or CSI reporting configuration #3 (AP) is applicable. In step S505, the gNB may send to the UE an instruction to activate CSI reporting configuration #2 by MAC-CE or CSI reporting configuration #3 by DCI. The UE then activates CSI reporting configuration #2 (SP) or CSI reporting configuration #3 (AP) based on the instruction.

[0088] Operation 3-1: Figure 9 is a sequence diagram for explaining an example (6) of a prediction configuration in an embodiment of the present invention. The UE may receive a holding timer along with the full prediction configuration in RRCReconfiguration (step 3). For example, one single holding timer may be a common value for all of the configured full prediction configurations. For example, multiple holding timers are configured, and each holding timer corresponds to one or more of the configured full prediction configurations.

[0089] In step S601, the gNB sends step 3 RRCReconfiguration to the UE. The RRCReconfiguration may include other configurations indicating that UAI is allowed, such as periodic CSI reporting configuration #1 (P), semi-persistent CSI reporting configuration #2 (SP), aperiodic CSI reporting configuration #3 (AP), and a hold timer. The UE maintains the CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3. The hold timer may be any of the timers described in 1) to 3) below. The UE may start the hold timer upon receiving the hold timer in step S601.

[0090] 1) The hold timer is 200 ms and is common to CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3. 2) The hold timers are 300 ms, 200 ms, and 100 ms, with 300 ms applied to CSI reporting setting #1, 200 ms to CSI reporting setting #2, and 100 ms to CSI reporting setting #3. 3) The hold timers are 300 ms and 200 ms, with 300 ms applied to CSI reporting setting #1 and 200 ms applied to CSI reporting setting #2 and CSI reporting setting #3.

[0091] Operation 3-2: Figure 10 is a sequence diagram for explaining example (7) of predictive configuration in an embodiment of the present invention. After initially reporting applicability via RRCReconfigurationComplete, the UE may determine its behavior based on the expiration status of the hold timer for each full predictive configuration (step 4). If the hold timer has not expired, the UE may apply Operation 1-1 and Operation 1-2 for the corresponding full predictive configuration. If the hold timer has expired, the UE may apply Operation 2-1, Operation 2-2, and Operation 2-3 for the corresponding full predictive configuration.

[0092] In step S701, the gNB sends a step 3 RRCReconfiguration to the UE. The RRCReconfiguration may include other configurations indicating that UAI is allowed, periodic CSI reporting configuration #1 (P), semi-persistent CSI reporting configuration #2 (SP), aperiodic CSI reporting configuration #3 (AP), and a retention timer.

[0093] In step S702, the UE transmits RRCReconfigurationComplete to the gNB. The RRCReconfigurationComplete may include information indicating that CSI reporting configuration #1 is not applicable, CSI reporting configuration #2 is not applicable, and CSI reporting configuration #3 is not applicable. The network may maintain the non-applicable prediction configurations. That is, CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3 are maintained. Furthermore, the UE maintains CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3.

[0094] In step S703, before the hold timer expires, action 1-1 and / or action 1-2 may be applied.

[0095] In step S704, after the hold timer expires, operation 2-1, operation 2-2, and / or operation 2-3 may be applied. The network may release non-applicable prediction configurations, i.e., CSI reporting configuration #1, CSI reporting configuration #2, and CSI reporting configuration #3.

[0096] The UE may report the following capabilities to the network: Ability of each movement ·Hold timer capability The ability of each option in each action, or the ability of a combination of options Ability to choose each option for each action, or ability to combine options

[0097] The UE can report the above capabilities per frequency, or it may report capabilities per UE, per FR1, FR2, FR2-1, FR2-2, per SCS, per band, per BC, per FC, or per FSPC.

[0098] The UE can report the above capabilities on a cell-by-cell basis, or it may report capabilities on a UE-by-UE basis, a cell-by-cell basis, or a TDD and FDD-by-TDD basis.

[0099] The following is Note 1.

[0100] Throughout the operation, which operations are applied and / or which options or alternatives are used may be determined as follows. - Set by higher level parameters. -Determined by the relevant higher later parameters -indicated by MAC-CE or DCI -Determined based on UE capabilities -As stated in the statement - Based on the terms and conditions stated in the specification -Determined by upper layer parameters / MAC-CE / DCI settings and reported terminal capabilities (combination of the above decisions)

[0101] Throughout the operation, multiple options and alternatives may be combined into one option / alternative.

[0102] Throughout operation, the UE may assume that some actions, options for actions, or alternatives to actions may only be applied when the UE reports support for a certain feature or model.

[0103] The following is Note 2.

[0104] The UE may receive the following types of information from the NW (NW can be rephrased by gNB throughout the proposal): Information via higher layer signaling (e.g., RRC messages / LPP messages) MAC-CE, MAC-CE with a new LCID in the subheader, extending an existing MAC-CE (e.g., introducing a new octet) DCI, DCI field: existing DCI field or newly introduced DCI field, RNTI: DCI with CRC scrambled by existing RNTI or newly introduced RNTI, DCI format: existing DCI format or newly introduced DCI format Combination of the above information

[0105] The UE may receive information from the NW in the following periodic types: Opt1: Periodic Opt2: Semi-persistent (triggered by UE or gNB indication) Opt3: Aperiodic (triggered by UE or gNB indication)

[0106] The following is Note 3.

[0107] The UE may send the following types of information to the NW (NW can be rephrased by gNB throughout the proposal): Information via higher layer signaling (e.g., RRC messages / LPP messages) MAC-CE, MAC-CE with a new LCID in the subheader, extending an existing MAC-CE (e.g., introducing a new octet) ·UCI, UCI on PUCCH, UCI on PUSCH UAI, may be accompanied by a simple reason for non-application. Combination of the above information

[0108] The UE may report information to the NW in the following periodic types: Opt1: Periodic Opt2: Semi-persistent (triggered by UE or gNB indication) Opt3: Aperiodic (triggered by UE or gNB indication)

[0109] Through the above operations, when the UE-side AIML model is applied to mobility to perform prediction, appropriate prediction settings can be activated according to changing applicability.

[0110] That is, the applicability of artificial intelligence and machine learning models for mobility can be modified.

[0111] (Device configuration) Next, a description will be given of examples of functional configurations of the base station 10, network node 30, and terminal 20 that perform the processes and operations described above. The base station 10, network node 30, and terminal 20 include functions for performing the above-described embodiments. However, the base station 10, network node 30, and terminal 20 may each include only a part of the functions of the embodiments.

[0112] <Base Station 10 and Network Node 30> FIG. 11 is a diagram showing an example of the functional configuration of the base station 10 and the network node 30. As shown in FIG. 11, the base station 10 has a transmitting unit 110, a receiving unit 120, a setting unit 130, and a control unit 140. The functional configuration shown in FIG. 11 is merely an example. As long as the operations according to the embodiment of the present invention can be performed, the names of the functional divisions and functional units may be any. Note that the network node 30 may have the same functional configuration as the base station 10. Furthermore, a network node 30 having multiple different functions in the system architecture may be composed of multiple network nodes 30 separated by function.

[0113] The transmitter 110 includes a function of generating a signal to be transmitted to the terminal 20 or another network node 30, and transmitting the signal by wire or wirelessly. The receiver 120 includes a function of receiving various signals transmitted from the terminal 20 or another network node 30, and acquiring, for example, information of a higher layer from the received signal. A communication unit including the transmitter 110 and the receiver 120 may be configured.

[0114] The transmitter 110 includes a function of generating a signal to be transmitted to the terminal 20 and transmitting the signal wirelessly. The transmitter 110 also transmits setting information, instructions, notifications, etc. related to a low-power wake-up signal to the terminal 20. The transmitter 110 also transmits notifications related to switching of monitoring operations to the terminal. The receiver 120 includes a function of receiving various signals transmitted from the terminal 20 and acquiring, for example, information of higher layers from the received signals. The transmitter 110 also has a function of transmitting PSS, SSS, PBCH, DL / UL control signals, etc. to the terminal 20. The receiver 120 also receives inter-network node messages from other network nodes.

[0115] The setting unit 130 stores preset setting information and various setting information to be transmitted to the terminal 20. The content of the setting information is, for example, information related to the operations described in the embodiments.

[0116] The control unit 140 controls settings, instructions, and notifications related to the operations described in the embodiments. The function unit related to signal transmission in the control unit 140 may be included in the transmitting unit 110, and the function unit related to signal reception in the control unit 140 may be included in the receiving unit 120.

[0117] <Terminal 20> Fig. 12 is a diagram showing an example of the functional configuration of terminal 20 in an embodiment of the present invention. As shown in Fig. 12, terminal 20 has a transmitting unit 210, a receiving unit 220, a setting unit 230, and a control unit 240. The functional configuration shown in Fig. 12 is merely an example. As long as the operations related to the embodiment of the present invention can be performed, the names of the functional divisions and functional units may be any. Transmitting unit 210 and receiving unit 220 may be collectively referred to as a communication unit.

[0118] The transmitter 210 creates a transmission signal from transmission data and transmits the transmission signal wirelessly. The transmitter 210 also transmits capability information related to the low-power wake-up signal to the base station 10. The receiver 220 receives various signals wirelessly and acquires higher layer signals from the received physical layer signals. The receiver 220 also has a function of receiving PSS, SSS, PBCH, DL / UL / SL control signals, etc. transmitted from the base station 10. The receiver 220 also receives paging notification information and configuration information, instructions, and notifications related to the low-power wake-up signal from the base station 10. For example, the receiver 220 receives a low-power wake-up signal from the base station 10. The setting unit 230 stores various configuration information received by the receiver 220 from the base station 10. The setting unit 230 also stores pre-configured configuration information. The content of the configuration information is, for example, information related to the operations described in the embodiments.

[0119] As described in the embodiments, the control unit 240 controls settings, instructions, and notifications related to the operations described in the embodiments. A functional unit related to signal transmission in the control unit 240 may be included in the transmitting unit 210, and a functional unit related to signal reception in the control unit 240 may be included in the receiving unit 220.

[0120] (Hardware configuration) The block diagrams (FIGS. 11 and 12) used to explain the above embodiments show functional blocks. These functional blocks (components) are realized by hardware, software, or a combination of these. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized by using one device that is physically or logically coupled, or may be realized by using two or more physically or logically separated devices that are connected directly or indirectly (for example, by wire, wirelessly, etc.) and these multiple devices. The functional block may be realized by combining the one device or the multiple devices with software.

[0121] For example, a base station, a terminal, a network node, etc. according to an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 13 is a diagram illustrating an example of the hardware configuration of a base station and a terminal according to an embodiment of the present disclosure. The above-described base station 10 and terminal 20 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0122] In the present disclosure, the term "apparatus" may be interchangeable with any two terms selected from a set of terms such as circuit, device, unit, module, chip, means, etc. The hardware configurations of the base station 10 and the terminal 20 may be configured to include one or more of the devices shown in the drawings, or may be configured to exclude some of the devices.

[0123] Each function in the base station 10 and the terminal 20 is realized by loading predetermined software (programs) onto hardware such as the processor 1001, memory 1002, etc., so that the processor 1001 performs calculations, controls communication by the communication device 1004, and controls the reading, writing, or both reading and writing of data in the memory 1002 and storage 1003.

[0124] The processor 1001, for example, runs an operating system to control the entire computer. The processor 1001 may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, etc. For example, a baseband signal processing unit, a call processing unit, etc. may be realized by the processor 1001. Although only one processor 1001 is shown in the figure, there may be multiple processors.

[0125] The processor 1001 also reads programs (program codes), software modules, data, etc. from the storage 1003, the communication device 1004, or both the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes in accordance with the programs. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. For example, the control unit 401 of the terminal 20 may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and similar implementations may be made for other functional blocks. While the above-described various processes have been described as being executed by a single processor 1001, they may also be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The programs may be transmitted from a network via a telecommunications line, or may be provided to the computer via the communication device 1004, for example.

[0126] The present disclosure also provides a computer program product including a computer program, which may implement the steps of the methods described in the above embodiments when the computer program is executed by a computer (e.g., the processor 1001).

[0127] The memory 1002 is a computer-readable recording medium and may be configured, for example, as a read-only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a random access memory (RAM), or a combination of at least two of these. The memory 1002 may also be called a register, a cache, a main memory (primary storage device), or the like. The memory 1002 can store executable programs (program codes), software modules, and the like for implementing a wireless communication method according to an embodiment of the present disclosure.

[0128] Storage 1003 is a computer-readable recording medium, and may be, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray disc), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy disk, a magnetic strip, or a combination of at least two of these. Storage 1003 may also be referred to as an auxiliary storage device. The above-mentioned storage medium may be, for example, memory 1002, storage 1003, or a database, server, or other appropriate medium including both memory 1002 and storage 1003.

[0129] The communication device 1004 is hardware (transmitting / receiving device) for communicating between computers via a wired network, a wireless network, or both wired and wireless networks, and is also referred to as, for example, a network device, a network controller, a network card, or a communication module. The communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, or a combination of at least two of these. For example, a transmitting / receiving antenna, an amplifier unit, a transmitting / receiving unit, or a transmission path interface may be realized by the communication device 1004. The transmitting / receiving unit may be implemented as a transmitting unit and a receiving unit that are physically or logically separated.

[0130] The input device 1005 is an input device that accepts input from the outside (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, or a combination of at least two of these). The output device 1006 is an output device that outputs to the outside (for example, a display, a speaker, an LED lamp, or a combination of at least two of these). The input device 1005 and the output device 1006 may be integrated into one device (for example, a touch panel).

[0131] Furthermore, each device, such as the processor 1001 and the memory 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between each device.

[0132] Furthermore, base station 10 and terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), a graphics processing unit (GPU), a neural processing unit (NPU), or a combination of at least two of these, and some or all of the functional blocks may be realized by the hardware. For example, processor 1001 may be implemented using at least one of these pieces of hardware.

[0133] <Configuration of this embodiment> (Section 1) a receiving unit that receives a CSI (Channel State Information) report configuration including a prediction configuration from a base station; a transmitter for transmitting the applicability of the CSI reporting configuration to the base station; a control unit that detects a change in applicability of the CSI reporting configuration; The control unit activates the applicable CSI reporting configuration to perform prediction. (Section 2) 2. The terminal according to claim 1, wherein the control unit detects that the CSI reporting configuration has been changed to be applicable, activates the CSI reporting configuration that has been changed to be applicable, and performs prediction. (Section 3) The control unit detects that the CSI reporting configuration has changed to be applicable; 2. The terminal according to claim 1, wherein the transmitter transmits, to the base station, information indicating that the CSI reporting configuration has changed to be applicable. (Section 4) The control unit detects that the CSI reporting configuration has changed to be applicable; The transmitter transmits information indicating that the CSI reporting configuration has been changed to be applicable to the base station; 2. The terminal of claim 1, wherein the receiver is configured to receive an instruction to activate the CSI reporting configuration from the base station. (Section 5) The terminal according to claim 1, wherein the control unit starts a hold timer when the hold timer is included in the CSI reporting configuration, and when the hold timer expires, transmits applicability of the CSI reporting configuration to the base station via UAI (User assistance information). (Section 6) receiving a CSI (Channel State Information) reporting configuration including a prediction configuration from a base station; transmitting the applicability of the CSI reporting configuration to the base station; detecting a change in applicability of the CSI reporting configuration; and a procedure for activating the applicable CSI reporting configuration and performing prediction, the communication method being performed by a terminal.

[0134] Any of the above configurations can change the applicability of the mobility-oriented artificial intelligence and machine learning model. Also, according to paragraphs 2 to 5, when a UE-side AIML model is applied to mobility to perform prediction, appropriate prediction settings can be activated according to the changing applicability.

[0135] (Supplementary explanation of the embodiment) Although the embodiments of the present invention have been described above, the disclosed invention is not limited to such embodiments, and those skilled in the art will understand various modifications, alterations, alternatives, and substitutions. While specific numerical examples have been used to facilitate understanding of the invention, unless otherwise specified, these numerical values ​​are merely examples, and any appropriate values ​​may be used. The division of items in the above description is not essential to the present invention; two or more items may be combined as needed, and items described in one item may apply to items described in another item (unless inconsistent). The boundaries between functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries between physical components. The operations of multiple functional units may be performed by a single physical component, or the operations of a single functional unit may be performed by multiple physical components. The order of the processing steps described in the embodiments may be reversed as long as there is no contradiction. For convenience of processing description, the base station 10 and terminal 20 have been described using functional block diagrams. However, such devices may be implemented using hardware, software, or a combination thereof. The software operated by the processor of the base station 10 in accordance with an embodiment of the present invention and the software operated by the processor of the terminal 20 in accordance with an embodiment of the present invention may each be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, registers, hard disk (HDD), removable disk, CD-ROM, database, server or any other suitable storage medium.

[0136] The aspects / embodiments described in the present disclosure may be categorized as Long Term Evolution (LTE), LTE-Advanced (LTE-A), International Mobile Telecommunications-Advanced (IMT-Advanced), 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G-Advanced (5G-A), 6th generation mobile communication system (6G), xth generation mobile communication system (x is, for example, an integer or a decimal number)), Future Radio Access (FRA), New Radio (NR), New radio access (NX), Future generation radio access (FX), Open Radio Access Network (O-RAN), Wideband Code Division Multiple Access (W-CDMA) (registered trademark), Global System for Mobile communications (GSM) (registered trademark), CDMA2000, Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) Engineers) 802.11, IEEE802.11x (where x is any character string such as b, a, g, n, ac, ax, be, or bn, and when x=n it is called Wi-Fi4, when x=ac it is called Wi-Fi5, when x=ax it is called Wi-Fi6 or Wi-Fi6E, when x=be it is Wi-Fi7, and when x=bn it is called Wi-Fi8, etc. Wi-Fi is a registered trademark.), IEEE802.16 (WiMAX (registered trademark), IEEE802.20, UWB (Ultra-Wide Band), Bluetooth (registered trademark), network virtualization technology (e.g., NFV (Network Function Virtualization), SFC (Service Function Chaining), SDN (Software Defined Networking)), or LPWA (Low Power Wide Area). Furthermore, each aspect / embodiment described in the present disclosure may be applied to a system based on a combination of at least two of these technologies. Furthermore, "based on" naturally refers not only to a system that uses the technology, but also to a system that uses an extension or modification of the technology.

[0137] In the present disclosure, any two terms selected from a set of terms such as "base station (BS)", "radio base station", "fixed station (fixed station)", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", "access point (AP)", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "radio unit (RU)", "remote unit (RU)", "control unit (CU)", "distributed unit (DU)", "remote radio head (RRH)", "node", "gateway", "terrestrial base station", "stratospheric base station", "unmanned aerial vehicle", "high altitude platform station (HAPS)", "airborne platform", "panel", "cell", "radio access network (RAN)", and "network" may be used interchangeably.

[0138] Each cell accommodated by a base station may be referred to by terms such as a macro cell, a small cell, a femto cell, a pico cell, a serving cell, or a super cell. In the present disclosure, any two terms selected from a set of terms such as "cell," "sector," "cell group," "carrier," "component carrier," "cluster," "bandwidth part (BWP)," and "carrier bandwidth" may be used interchangeably.

[0139] In the present disclosure, any two terms selected from the set of terms such as "Mobile Station (MS)", "user terminal", "User Equipment (UE)", "Device", "Module" and "Terminal" may be used interchangeably.

[0140] A terminal may be referred to as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, router (e.g., home router, mobile router, etc.), TCU (Telematics Control Unit), or some other suitable terminology.

[0141] The base station and the terminal may each be composed of one or more devices. The devices constituting at least a portion of the base station and the terminal may be called a transmitting device, a receiving device, a communication device, etc. Note that the devices constituting at least a portion of the base station and the terminal may be, for example, an object itself, such as a vehicle, a transport vehicle, an automobile, a motorcycle, a bicycle, a connected car, an excavator, a bulldozer, a wheel loader, a dump truck, a forklift, a train, a bus, a handcar, a rickshaw, a ship and other watercraft, an airplane, a rocket, an unmanned aerial vehicle, a stratospheric base station (e.g., a High Altitude Platform Station (HAPS)), an artificial satellite (e.g., a Low Earth Orbit (LEO) satellite, a Medium Earth Orbit (MEO) satellite, a Geostationary Earth Orbit (GEO) satellite), a drone (registered trademark), a multicopter, a quadcopter, a balloon, or an Internet of Things (IoT) device (e.g., a smart meter, a sensor), or may include, but are not limited to, an object or device mounted on the object. Furthermore, the object may be a moving object (hereinafter referred to as a "moving object"; this does not exclude the case where the moving object is in a stationary state where it is not moving), or may be a fixedly positioned object (hereinafter referred to as a "non-moving object").

[0142] Furthermore, a base station in the present disclosure may be read as a terminal. For example, the aspects / embodiments of the present disclosure may be applied to a configuration in which communication between a base station and a terminal is replaced with communication between multiple terminals (which may be called, for example, D2D (Device-to-Device) or V2X (Vehicle-to-Everything)) or communication of a non-terrestrial network (NTN). In this case, the terminal 20 may be configured to have at least some of the functions of the base station 10 described above. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to communication between terminals (for example, "sidelink") or terms corresponding to NTN (for example, feeder link or service link). For example, an uplink channel or a downlink channel may be read as a sidelink channel.

[0143] The present disclosure is also applicable to cases where at least some of the devices constituting the base station and the terminal operate outside the earth (for example, in the atmosphere or outer space).

[0144] In addition, the term "terminal" in the present disclosure may be read as "base station." In this case, the base station 10 may be configured to have the functions of the terminal 20 described above.

[0145] The notification of information is not limited to the aspects / embodiments described in the present disclosure, and may be performed using other methods. For example, the notification of information may be performed by physical layer signaling (e.g., Downlink Control Information (DCI) and Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB) and System Information Block (SIB))), other signals, or a combination of at least two of these. Note that the physical layer signaling may be referred to as Layer 1 (L1) control information. The MAC signaling may be referred to as a MAC Control Element (CE) or a MAC Protocol Data Unit (PDU), for example. Furthermore, the RRC signaling may be referred to as an RRC message or an information element (IE) in the RRC message. The RRC message may be, for example, a message used for controlling an RRC connection (for example, setup, reconfiguration, establishment, reestablishment, release, or resume), mobility, a measurement report, or notification of a terminal's capabilities, or may be an information element within the message. Furthermore, notification of information may be explicit or implicit. Note that explicit notification of certain information means notification of the certain information itself, and implicit notification of certain information may mean notification of information other than the certain information, or may mean that the certain information is considered to have been notified when a certain condition is satisfied.Furthermore, notification of information may include not only notification between the same layers of different devices (e.g., between a lower layer or an upper layer of the base station 10 and the terminal 20) but also notification between different layers in the same or different devices (e.g., between a lower layer and an upper layer in the base station 10 or the terminal 20). Furthermore, notification of information from one device to another device may be performed via one or more devices. Regarding any information (e.g., a variable, a constant, a parameter, a setting) described in the present disclosure, even if not specifically stated in the above embodiments, information indicating / specifying (or related to) the any information (value) may be notified from any first device (e.g., a terminal / base station) to any second device (e.g., a base station / terminal).

[0146] The order of the procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be changed unless it is consistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0147] In the present disclosure, a specific operation described as being performed by a base station may be performed by its upper node or by some of its upper nodes (e.g., CU, RU, or DU, etc.) in some cases. It is clear that various operations performed for communication with a terminal in a RAN or core network may be performed by at least some of the base station and other network nodes other than the base station. The other network node may be one node or a combination of multiple nodes. The network node is, for example, a node provided in various core networks such as EPC (Evolved Packet Core) and 5GC (5G Core Network), and provides one or more network functions (NF: Network Functions), but is not limited to this.

[0148] Furthermore, in the present disclosure, the operation of "a terminal receives information from a base station" accompanies the operation of "the base station transmits the information to the terminal," "the base station generates the information," or both. Similarly, the operation of "a terminal transmits information to a base station" accompanies the operation of "the base station receives the information from the terminal." Furthermore, the operation of "a terminal is configured to ..." or "configure UE to ..." may include the operation of "a base station transmits configuration information regarding the configuration of the terminal" and the operation of "a terminal configures a predetermined operation based on the configuration information."

[0149] Each aspect / embodiment described in the present disclosure may be used alone, in combination, or switched depending on the implementation.

[0150] The present disclosure has been described above, but it is for illustrative purposes only, and the present invention is not limited to the aspects / embodiments described in the present disclosure. The present disclosure can be implemented in modified and altered forms without departing from the spirit of the invention. The present disclosure and its modifications and alterations are included in the scope of the present invention and its equivalents.

[0151] As used in this disclosure, any reference to an element using a designation such as "first," "second," etc. does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must in some way precede the second element.

[0152] The radio resource may be defined by a combination of resource units in one or more domains, such as the time domain, the frequency domain, the spatial domain, the code domain, and the power domain.

[0153] For example, resources in the time domain may be defined by one or more time units. The one or more time units may include, but are not limited to, a radio frame, a subframe, a slot, a symbol, a transmission time interval (TTI), or a combination of at least two of these. The time unit may be a fixed-length time unit independent of numerology, a variable-length time unit dependent on numerology, or both. Examples of fixed-length time units include, but are not limited to, a subframe consisting of one or more slots and a radio frame including multiple subframes. Examples of variable-length time units include, but are not limited to, a symbol and a slot including a fixed number of symbols. A certain time unit may be divided into shorter time units. Examples of shorter time units include, but are not limited to, a minislot consisting of fewer symbols than the number of symbols constituting a slot. The above-described time units may include, for example, time units used as units for scheduling, link adaptation, etc. Furthermore, any time unit in the present disclosure may be read as another time unit.

[0154] Numerology is a parameter that defines the physical layer structure, and may be a parameter based on at least one of subcarrier spacing (SCS), symbol length, cyclic prefix length, and sampling time, for example.

[0155] Resources in the frequency domain may be defined, for example, by one or more frequency units. The one or more frequency units may include, for example, subcarriers, resource blocks (RBs), bandwidth parts (BWPs), carrier bandwidths, or a combination of at least two of these, but the terminology of the frequency units is not limited to these. The number of subcarriers included in a frequency unit may be a fixed number regardless of numerology, or may be a variable number that changes depending on numerology. For example, an RB is composed of a predetermined number of consecutive subcarriers in the frequency domain, and the number of subcarriers included in the RB may be the same regardless of numerology, for example, 12, but is not limited to this. A BWP may be composed of, for example, one or more consecutive RBs within a certain carrier bandwidth, but is not limited to this. One or more BWPs may be configured within one carrier for terminal 20, and at least one of the BWPs may be activated. Any frequency unit in the present disclosure may be interchangeable with another frequency unit.

[0156] Furthermore, resources in both the time domain and the frequency domain may be defined by one or more time / frequency units each consisting of a time unit and a frequency unit, such as, but not limited to, a resource element (RE) consisting of one symbol and one subcarrier, a resource element group (REG) consisting of a predetermined number of REs, or a control resource set (CORESET) consisting of a predetermined number of symbols and a predetermined number of RBs.

[0157] Furthermore, resources in the spatial domain may be defined, for example, by one or more spatial units, including, but not limited to, a beam, a layer of MIMO (Multi-Input Multi-Output), an antenna port, or a combination of at least two of these.

[0158] Furthermore, the resources in the code domain may be defined by one or more code units, such as, but not limited to, a cyclic shift (CS), an orthogonal cover code (OCC), or a combination thereof.

[0159] In this disclosure, where articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are in the plural form.

[0160] The "means" in the configuration of each of the above devices may be replaced with "part," "circuit," "device," etc. [Explanation of symbols]

[0161] 10 base station 110 Transmitter 120 Receiver 130 Setting section 140 Control Unit 20 terminals 210 Transmitter 220 Receiving unit 230 Setting Section 240 Control Unit 1001 processor 1002 Storage device 1003 Auxiliary storage device 1004 Communication equipment 1005 Input Device 1006 Output Device

Claims

1. a receiving unit that receives a CSI (Channel State Information) report configuration including a prediction configuration from a base station; a transmitter for transmitting the applicability of the CSI reporting configuration to the base station; a control unit that detects a change in applicability of the CSI reporting configuration; The control unit activates the applicable CSI reporting configuration to perform prediction.

2. The terminal of claim 1 , wherein the control unit detects that the CSI reporting configuration has been changed to be applicable, activates the CSI reporting configuration that has been changed to be applicable, and performs prediction.

3. The control unit detects that the CSI reporting configuration has changed to be applicable; The terminal according to claim 1 , wherein the transmitter transmits information indicating that the CSI reporting configuration has been changed to be applicable to the base station.

4. The control unit detects that the CSI reporting configuration has changed to be applicable; The transmitter transmits information indicating that the CSI reporting configuration has been changed to be applicable to the base station; The terminal of claim 1 , wherein the receiver receives an instruction to activate the CSI reporting configuration from the base station.

5. The terminal according to claim 1, wherein the control unit starts a hold timer when the hold timer is included in the CSI reporting configuration, and when the hold timer expires, transmits the applicability of the CSI reporting configuration to the base station via UAI (User assistance information).

6. receiving a CSI (Channel State Information) reporting configuration including a prediction configuration from a base station; transmitting the applicability of the CSI reporting configuration to the base station; detecting a change in applicability of the CSI reporting configuration; and a procedure for activating the applicable CSI reporting configuration and performing prediction, the communication method being performed by a terminal.

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