Method and device for reporting measurement information in wireless communication system

Abstract

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure relates to a wireless communication system and, more particularly, to a method and a device capable of performing same, in which a terminal: transmits, to a base station, first capability information including a first indicator indicating that the terminal is capable of receiving and applying radio resource control (RRC) signaling in which multiple pieces of reporting configuration information may be mapped to a single measurement ID; receives, from the base station, a first RRC message including first configuration information in which multiple pieces of reporting configuration information are mapped to a single measurement ID; determines whether multiple reporting conditions corresponding to the multiple pieces of reporting configuration information are satisfied; and transmits a measurement report message to the base station if it is determined that the multiple reporting conditions are satisfied.

Description

Method and device for reporting measurement information in a wireless communication system

[0001] The present disclosure relates to a wireless communication system, and more particularly, to a method for reporting measurement information in a wireless communication system and a device capable of performing the same.

[0002] 5G mobile communication technology defines a wide frequency band to enable fast transmission speeds and new services, and can be implemented not only in the sub-6GHz frequency band such as 3.5 gigahertz (3.5GHz), but also in the ultra-high frequency band called millimeter wave (mmWave) such as 28GHz and 39GHz ('Above 6GHz'). In addition, for 6G mobile communication technology, which is called the system after 5G communication (Beyond 5G), implementation in the terahertz band (for example, the 3 terahertz (3THz) band at 95GHz) is being considered to achieve a transmission speed that is 50 times faster than 5G mobile communication technology and an ultra-low latency time that is reduced to one-tenth.

[0003] In the early stages of 5G mobile communication technology, the goal is to support services and satisfy performance requirements for enhanced Mobile Broadband (eMBB), Ultra-Reliable Low-Latency Communications (URLLC), and massive Machine-Type Communications (mMTC). These include beamforming and massive MIMO to mitigate path loss of radio waves in ultra-high frequency bands and increase the transmission distance of radio waves, support for various numerologies (such as operation of multiple subcarrier intervals) and dynamic operation of slot formats for efficient use of ultra-high frequency resources, initial access technology to support multi-beam transmission and wideband, definition and operation of BWP (Bidth Part), new channel coding methods such as LDPC (Low Density Parity Check) codes for large-capacity data transmission and Polar Code for reliable transmission of control information, and L2 pre-processing (L2). Standardization has been made for network slicing, which provides dedicated networks specialized for specific services, and pre-processing.

[0004] Currently, discussions are underway to improve and enhance the initial 5G mobile communication technology in consideration of the services that 5G mobile communication technology was intended to support, and physical layer standardization is in progress for technologies such as V2X (Vehicle-to-Everything) to help autonomous vehicles make driving decisions and increase user convenience based on their own location and status information transmitted by vehicles, NR-U (New Radio Unlicensed) for the purpose of system operation that complies with various regulatory requirements in unlicensed bands, NR terminal low power consumption technology (UE Power Saving), Non-Terrestrial Network (NTN), which is direct terminal-satellite communication to secure coverage in areas where communication with terrestrial networks is impossible, and Positioning.

[0005] In addition, standardization of wireless interface architecture / protocols is in progress for technologies such as intelligent factories (Industrial Internet of Things, IIoT) to support new services through linkage and convergence with other industries, Integrated Access and Backhaul (IAB) that provides nodes for expanding network service areas by integrating wireless backhaul links and access links, Mobility Enhancement technology including Conditional Handover and Dual Active Protocol Stack (DAPS) handover, and 2-step random access (2-step RACH for NR) that simplifies random access procedures. Standardization is also in progress for system architecture / services such as 5G baseline architecture (e.g., Service-based Architecture, Service-based Interface) for grafting Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technologies, and Mobile Edge Computing (MEC) that provides services based on the location of the terminal.

[0006] Once these 5G mobile communication systems are commercialized, an explosive increase in connected devices will be connected to the communication network, necessitating enhanced functionality and performance of 5G mobile communication systems and integrated operation of these connected devices. To this end, new research will be conducted on improving 5G performance and reducing complexity, supporting AI services, supporting metaverse services, and drone communications by utilizing eXtended Reality (XR), Artificial Intelligence (AI), and Machine Learning (ML) to efficiently support Augmented Reality (AR), Virtual Reality (VR), and Mixed Reality (MR).

[0007] In addition, the development of these 5G mobile communication systems includes new waveforms to ensure coverage in the terahertz band of 6G mobile communication technology, multi-antenna transmission technologies such as Full Dimensional MIMO (FD-MIMO), Array Antenna, and Large Scale Antenna, metamaterial-based lenses and antennas to improve the coverage of terahertz band signals, high-dimensional spatial multiplexing technology using Orbital Angular Momentum (OAM), Reconfigurable Intelligent Surface (RIS) technology, as well as full duplex technology to improve the frequency efficiency and system network of 6G mobile communication technology, satellite, AI (Artificial Intelligence) from the design stage and AI-based communication technology that realizes system optimization by internalizing end-to-end AI support functions, and ultra-high-performance communication and computing resources to provide services with complexity that exceeds the limits of terminal computing capabilities. It can serve as a basis for the development of next-generation distributed computing technologies that can be realized by utilizing them.

[0008] As one aspect of the present disclosure, a method performed by a terminal in a wireless communication system is provided, the method comprising: transmitting to a base station first capability information including a first indicator indicating that the terminal can receive and apply RRC (Radio Resource Control) signaling in which a plurality of report configuration information can be mapped to a single measurement ID; receiving from the base station a first RRC message including first configuration information in which a plurality of report configuration information are mapped to a single measurement ID; determining whether a plurality of report conditions corresponding to the plurality of report configuration information are satisfied; and, when it is determined that the plurality of report conditions are satisfied, transmitting a measurement report message to the base station.

[0009] As one aspect of the present disclosure, in a wireless communication system, a terminal includes a transceiver; and at least one processor coupled to the transceiver, wherein the at least one processor transmits first capability information to a base station, the first indicator including an RRC (Radio Resource Control) signaling in which a plurality of report configuration information can be mapped to a single measurement ID, and receives, from the base station, a first RRC message including first configuration information in which a plurality of report configuration information are mapped to a single measurement ID, and determines whether a plurality of report conditions corresponding to the plurality of report configuration information are satisfied, and when it is determined that the plurality of report conditions are satisfied, transmits a measurement report message to the base station.

[0010] As one aspect of the present disclosure, in a wireless communication system, a base station includes a transceiver; and at least one processor coupled to the transceiver, wherein the at least one processor receives, from a terminal, first capability information including a first indicator indicating that a terminal can receive and apply RRC (Radio Resource Control) signaling in which a plurality of report configuration information can be mapped to a single measurement ID, transmits, to the terminal, a first RRC message including first configuration information in which a plurality of report configuration information are mapped to a single measurement ID, and receives, from the terminal, a measurement report message when a plurality of reporting conditions corresponding to the plurality of report configuration information are satisfied.

[0011] FIG. 1a is a diagram illustrating the structure of a next-generation mobile communication system according to one embodiment of the present disclosure.

[0012] FIG. 1b is a diagram for explaining cell measurement information according to one embodiment of the present disclosure.

[0013] FIG. 1C is a diagram illustrating a method for assigning multiple report setting information to one cell measurement ID according to one embodiment of the present disclosure.

[0014] FIG. 1D is a flowchart of a process for applying multiple report setting information assigned to one cell measurement ID according to one embodiment of the present disclosure.

[0015] FIG. 1e is a flowchart of a terminal operation for applying multiple report setting information assigned to one cell measurement ID according to one embodiment of the present disclosure.

[0016] FIG. 1f is a flowchart of a base station operation for applying multiple report configuration information assigned to one cell measurement ID according to one embodiment of the present disclosure.

[0017] FIG. 1g is a diagram illustrating a method for adjusting cell measurement requirements to save terminal power consumption according to one embodiment of the present disclosure.

[0018] FIG. 1h is a diagram for explaining conditions for adjusting cell measurement requirements to save terminal power consumption according to one embodiment of the present disclosure.

[0019] FIG. 1i is a flowchart of a first process for reporting cell measurement results for UE power saving according to one embodiment of the present disclosure.

[0020] FIG. 1j is a flowchart of a second process for reporting cell measurement results for UE power saving according to an embodiment of the present disclosure.

[0021] FIG. 1k is a flowchart of a terminal operation for reporting cell measurement results for UE power saving according to an embodiment of the present disclosure.

[0022] FIG. 1l is a flowchart of a base station operation for reporting cell measurement results for UE power saving according to an embodiment of the present disclosure.

[0023] [Correction under Rule 91 21.07.2025] Figure 1m is a block diagram showing the internal structure of a terminal according to one embodiment of the present disclosure.

[0024] [Revised 21.07.2025 under Rule 91] Figure 1n is a block diagram showing the configuration of a base station according to one embodiment of the present disclosure.

[0025] The operating principles of the present disclosure are described in detail below with reference to the attached drawings. In the following description of the present disclosure, detailed descriptions of related known functions or configurations will be omitted if they are deemed to unnecessarily obscure the gist of the present disclosure. Furthermore, the terms described below are defined based on the functions of the present disclosure and may vary depending on the intent or custom of the user or operator. Therefore, their definitions should be based on the overall content of this specification.

[0026] In describing the embodiments of this disclosure, descriptions of technical details that are well known in the technical field to which this disclosure pertains and are not directly related to this disclosure will be omitted. This is to ensure that the gist of this disclosure is conveyed more clearly without obscuring it by omitting unnecessary explanations.

[0027] For the same reason, some components in the attached drawings are exaggerated, omitted, or schematically depicted. Furthermore, the dimensions of each component do not entirely reflect its actual size. Identical or corresponding components in each drawing are assigned the same reference numbers.

[0028] The advantages and features of the present disclosure, and methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below and may be implemented in various different forms. These embodiments are provided solely to ensure that the present disclosure is complete and to fully inform those skilled in the art of the scope of the disclosure, and the present disclosure is defined only by the scope of the claims. Like reference numerals designate like elements throughout the specification.

[0029] At this time, it will be understood that each block of the processing flow diagrams and combinations of the flow diagrams can be performed by computer program instructions. These computer program instructions can be installed in a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing equipment, so that the instructions executed by the processor of the computer or other programmable data processing equipment create a means for performing the functions described in the flow diagram block(s). These computer program instructions can also be stored in a computer-available or computer-readable memory that can direct a computer or other programmable data processing equipment to implement the functions in a specific manner, so that the instructions stored in the computer-available or computer-readable memory can also produce a manufactured item that includes an instruction means for performing the functions described in the flow diagram block(s). Since the computer program instructions may be installed on a computer or other programmable data processing device, a series of operational steps may be performed on the computer or other programmable data processing device to create a computer-executable process, and the instructions that cause the computer or other programmable data processing device to perform the steps for performing the functions described in the flowchart block(s) may also provide steps for performing the functions described in the flowchart block(s).

[0030] Additionally, each block may represent a module, segment, or portion of code that contains one or more executable instructions for performing a specific logical function(s). It should also be noted that in some alternative implementation examples, the functions described in the blocks may occur out of order. For example, two blocks depicted in succession may actually be executed substantially concurrently, or the blocks may sometimes be executed in reverse order, depending on their respective functions.

[0031] Here, the term '~ part' used in this embodiment means software or hardware components such as FPGA (Field Programmable Gate Array) or ASIC (Application Specific Integrated Circuit), and the '~ part' performs certain roles. However, the '~ part' is not limited to software or hardware. The '~ part' may be configured to be on an addressable storage medium and may be configured to play one or more processors. Therefore, as an example, the '~ part' includes components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, procedures, subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and variables. The functions provided within the components and '~ parts' may be combined into a smaller number of components and '~ parts' or further separated into additional components and '~ parts'. Additionally, components and '~parts' may be implemented to regenerate one or more CPUs within a device or secure multimedia card.

[0032] Hereinafter, the base station is an entity that performs resource allocation of a terminal, and may be at least one of a Node B, a BS (Base Station), an eNB (eNode B), a gNB (gNode B), a wireless access unit, a base station controller, or a node on a network. The terminal may include a UE (User Equipment), an MS (Mobile Station), a cellular phone, a smartphone, a computer, or a multimedia system capable of performing a communication function. In addition, the embodiments of the present disclosure may be applied to other communication systems having a similar technical background or channel type to the embodiments of the present disclosure described below. In addition, the embodiments of the present disclosure may be applied to other communication systems with some modifications without significantly departing from the scope of the present disclosure at the discretion of a person having skilled technical knowledge. For example, the 5th generation mobile communication technology (5G, new radio, NR) developed after LTE-A may be included here, and the 5G below may also be a concept that includes existing LTE, LTE-A, and other similar services. In addition, the present disclosure may be applied to other communication systems with some modifications within a scope that does not significantly deviate from the scope of the present disclosure, as judged by a person having skilled technical knowledge.

[0033] In the following description, terms used to identify connection nodes, terms referring to network entities or network functions (NFs), terms referring to messages, terms referring to interfaces between network objects, terms referring to various identification information, etc. are provided as examples for convenience of explanation. Therefore, the present disclosure is not limited to the terms described below, and other terms referring to objects having equivalent technical meanings may be used.

[0034] For convenience of explanation below, some terms and names defined in the 3rd generation partnership project (3GPP) LTE (long term evolution) standard and / or 3GPP NR (new radio) standard may be used. However, the present disclosure is not limited by these terms and names, and can be equally applied to systems conforming to other standards.

[0035] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the attached drawings. It should be noted that, where possible, identical components are represented by identical reference numerals throughout the attached drawings. Furthermore, the attached drawings of the present disclosure are provided to aid understanding of the present disclosure, and it should be noted that the present invention is not limited to the forms or arrangements illustrated in the drawings.

[0036] FIG. 1a is a diagram illustrating the structure of a next-generation mobile communication system according to one embodiment of the present disclosure.

[0037] Referring to Fig. 1a, as illustrated, a wireless access network of a next-generation mobile communication system (New Radio, NR) is composed of a next-generation base station (New Radio Node B, hereinafter referred to as gNB) (1a-10) and an Access and Mobility Management Function (AMF) (1a-05, New Radio Core Network). A user terminal (New Radio User Equipment, hereinafter referred to as NR UE or terminal) (1a-15) accesses an external network through the gNB (1a-10) and the AMF (1a-05).

[0038] In Fig. 1a, the gNB (1a-10) corresponds to the eNB (Evolved Node B) (1a-30) of the existing LTE system. The gNB (1a-10) is connected to the NR UE (1a-15) via a wireless channel and can provide a service superior to the existing Node B (1a-20). In the next-generation mobile communication system, all user traffic is serviced through a shared channel, so a device that collects status information such as the buffer status of the UEs, the available transmission power status, and the channel status and performs scheduling is required, and the gNB (1a-10) is in charge of this. One gNB (1a-10) typically controls multiple cells. In order to implement ultra-high-speed data transmission compared to the existing LTE, it can have a bandwidth higher than the existing maximum, and beamforming technology can be additionally grafted using the orthogonal frequency division multiplexing (OFDM) scheme as a wireless access technology. In addition, it applies the Adaptive Modulation & Coding (AMC) method that determines the modulation scheme and channel coding rate according to the channel status of the terminal. AMF (1a-05) performs functions such as mobility support, bearer setup, and QoS setup. AMF (1a-05) is a device that is responsible for various control functions as well as mobility management functions for the terminal and is connected to multiple base stations. In addition, the next-generation mobile communication system can also be linked with the existing LTE system, and AMF (1a-05) is connected to MME (Mobility Management Entity) (1a-25) through a network interface. MME (1a-25) is connected to eNB (1a-30), which is an existing base station.A terminal supporting LTE (E-UTRA)-NR Dual Connectivity (EN-DC) can transmit and receive data while maintaining a connection to not only the gNB (1a-10) but also the eNB (1a-30) (1a-35).

[0039] FIG. 1b is a diagram for explaining cell measurement information according to one embodiment of the present disclosure.

[0040] A base station can transmit a predetermined cell measurement configuration information to a terminal, thereby instructing the terminal to perform a cell measurement report according to the configuration information. The configuration information corresponds to the following MeasConfig IE (excerpt from the standard document 3GPP TS 38.331 V17.7.0).

[0041]

[0042] The MeasConfig IE may store one or more measurement IDs (1b-05, measId) indicating one measurement configuration information, and one measurement object ID (1b-15, measObjectId) and one reporting configuration ID (1b-10, reportConfigId) are mapped to each ID. Each measurement object ID and reporting configuration ID are used to indicate configuration information related to the frequency to be measured (e.g., MeasObject IE) and configuration information related to reporting (e.g., ReportConfig IE). The terminal reports the cell measurement result to the base station using a predetermined RRC message, MeasurementReport, and at this time, the message includes the measId together with the measured result. The base station can easily determine which configuration information, that is, the MeasObject IE and ReportConfig IE, the measured result corresponds to, based on the received measId alone. The MeasObject IE stores configuration information required for SS / PBCH intra / inter-frequency measurement and CSI-RS intra / inter-frequency measurement. The above ReportConfig IE contains configuration information required for event-triggered reporting, periodic reporting, and CGI reporting. Specifically, for event-triggered reporting, the following multiple events can be configured. Typically, configuration information related to a single event corresponds to a single ReportConfig IE. Even for events of the same type, if the applicable configuration values ​​differ, they correspond to different ReportConfig IEs.A base station can provide one or more ReportConfig IEs to a terminal, each of which is mapped to a reporting configuration ID. In the NR communication system standard, the following events have been defined up to Release 18.

[0043] - Event A1: Serving becomes better than absolute threshold

[0044] - Event A2: Serving becomes worse than absolute threshold

[0045] - Event A3: Neighbor becomes amount of offset better than PCell / PSCell

[0046] - Event A4: Neighbor becomes better than absolute threshold

[0047] - Event A5: PCell / PSCell becomes worse than absolute threshold1 AND Neighbor / SCell becomes better than another absolute threshold2

[0048] - Event A6: Neighbor becomes amount of offset better than SCell

[0049] - Event D1: Distance between UE and a reference location referenceLocation1 becomes larger than configured threshold distanceThreshFromReference1 and distance between UE and a reference location referenceLocation2 becomes shorter than configured threshold distanceThreshFromReference2

[0050] - Event X1: Serving L2 U2N Relay UE becomes worse than absolute threshold1 AND NR Cell becomes better than another absolute threshold2

[0051] - Event X2: Serving L2 U2N Relay UE becomes worse than absolute threshold

[0052] - Event I1: Interference becomes higher than absolute threshold

[0053] - Event H1: Aerial UE altitude becomes higher than a threshold

[0054] - Event H2: Aerial UE altitude becomes lower than a threshold

[0055] - Event A3H1: Neighbour becomes offset better than SpCell and the Aerial UE altitude becomes higher than a threshold

[0056] - Event A3H2: Neighbour becomes offset better than SpCell and the Aerial UE altitude becomes lower than a threshold

[0057] - Event A4H1: Neighbour becomes better than threshold1 and the Aerial UE altitude becomes higher than a threshold2

[0058] - Event A4H2: Neighbour becomes better than threshold1 and the Aerial UE altitude becomes lower than a threshold2

[0059] - Event A5H1: SpCell becomes worse than threshold1 and neighbour becomes better than threshold2 and the Aerial UE altitude becomes higher than a threshold3

[0060] - Event A5H2: SpCell becomes worse than threshold1 and neighbour becomes better than threshold2 and the Aerial UE altitude becomes lower than a threshold3

[0061] In particular, in Release-18, new events that combine the conditions of two events are defined, namely Event A3H1, Event A3H2, Event A4H1, Event A4H2, Event A5H1, and Event A5H2. For example, Event A3H1 is the AND combination of Event A3 conditions and Event H1 conditions. The reason for defining a new event that represents a combination of existing event conditions is that the RRC signaling structure requires that one measId corresponds to one reportConfigId, and one ReportingConfig IE corresponding to one reportConfigId must correspond to one event.

[0062] If additional reporting conditions that combine two or more existing event conditions are required, the current signaling method may be inefficient because a new corresponding measurement event must be defined.

[0063] FIG. 1C is a diagram illustrating a method for assigning multiple report setting information to one cell measurement ID according to one embodiment of the present disclosure.

[0064] In this embodiment, an RRC signaling structure is proposed in which multiple reportConfigIds can be mapped to a single measId. This signaling structure can represent a combination of existing event conditions by mapping reportConfigIds corresponding to the events to a single measId, eliminating the need to define a new event representing the combination. For example, the same configuration as the existing Event A3H1 can be represented by mapping reportConfigId (1c-15) corresponding to event A3 and reportConfigId (1c-20) corresponding to event H1 to a single measId (1c-05). In addition, even when a combination of three or more types of events is required, it can be easily represented by mapping related reportConfigIds to a single measId. For example, if a base station wants to set up reporting to be triggered when all of the conditions of event A3 (1c-15), event H1 (1c-20), event D1 (1c-25), and event I1 (1c-30) are satisfied, the base station can set up the terminal by mapping the reportConfigIds corresponding to the events to a single measId. The terminal that has received the configuration information reports a MeasurementReport message to the base station when all of the conditions of the events are satisfied.

[0065] In another embodiment, event-triggered periodical reporting can be configured for a terminal by mapping reportConfigId (1c-45) corresponding to periodical reporting and reportConfigId (1c-50) corresponding to event-triggered reporting to a single measId (1c-35). Previously, event-triggered periodical reporting configuration information was configured by adding a specific field, reportAmount, to the event-triggered reporting configuration information. This is an RRC signaling structure that reduces flexibility. That is, the proposed structure can utilize the reportAmount field information in the periodical reporting configuration information.

[0066] In this embodiment, multiple reportConfigIds can be mapped to one measId, but only one measObjectId (1c-10, 1c-40) can still be mapped.

[0067] FIG. 1D is a flowchart of a process for applying multiple report setting information assigned to one cell measurement ID according to one embodiment of the present disclosure.

[0068] The terminal (1d-05) reports its capability information to the base station (1d-10) (1d-13). The capability information includes an indicator indicating that the terminal itself can receive and apply RRC signaling in which multiple reportConfigIds can be mapped to a single measId.

[0069] The base station decides to receive a report of cell measurement results from the terminal when all of a plurality of event conditions are satisfied (1d-15). The base station configures MeasConfig by mapping reportConfigIds corresponding to each event to one measId. ReportConfig IEs corresponding to each reportConfigId may also be included in the MeasConfig IE. The base station transmits an RRC message including the configured MeasConfig, an RRCReconfiguration message, to the terminal (1d-20). The terminal performs cell measurement and reporting operations according to the received MeasConfig IE (1d-25). If the terminal evaluates that all of the events set in the reportConfig IEs indicated by the multiple reportConfigIds corresponding to one measId are satisfied, the terminal transmits a MeasurementReport message including a valid cell measurement result to the base station (1d-30).

[0070] FIG. 1e is a flowchart of a terminal operation for applying multiple report setting information assigned to one cell measurement ID according to one embodiment of the present disclosure.

[0071] In step 1e-05, the terminal reports its capability information to the base station. The capability information includes an indicator indicating that the terminal can receive and apply RRC signaling in which multiple reportConfigIds can be mapped to a single measId.

[0072] At step 1e-10, the terminal receives an RRCReconfiguration message from the base station including configuration information in which multiple reportConfigIds are mapped to one measId.

[0073] At step 1e-15, the terminal evaluates whether all events set in the reportConfig IEs indicated by the multiple reportConfigIds corresponding to the one measId are satisfied.

[0074] At step 1e-20, if the terminal is evaluated to have satisfied all of the above-described event conditions, it transmits a MeasurementReport message including valid cell measurement results to the base station.

[0075] FIG. 1f is a flowchart of a base station operation for applying multiple report configuration information assigned to one cell measurement ID according to one embodiment of the present disclosure.

[0076] In step 1f-05, the base station receives capability information from the terminal. The capability information includes an indicator indicating that the terminal can receive and apply RRC signaling in which multiple reportConfigIds can be mapped to a single measId.

[0077] In step 1f-10, the base station transmits an RRCReconfiguration message to the terminal including configuration information in which multiple reportConfigIds are mapped to one measId.

[0078] In step 1f-15, the base station receives a MeasurementReport message from the terminal.

[0079] FIG. 1g is a diagram illustrating a method for adjusting cell measurement requirements to save terminal power consumption according to an embodiment of the present disclosure.

[0080] In order to support mobility, a terminal measures received signal information of the current serving cell and neighboring cells, and can perform an operation to change the current serving cell based on the measurement results. That is, based on the cell measurement results, a terminal in standby mode or inactive mode performs a cell reselection operation. A terminal in connected mode measures the serving and neighboring cells based on predetermined cell measurement configuration information provided by a base station, and reports the collected measurement results to the base station periodically or event-based. Based on the reported measurement results, the base station can configure a handover operation to change the serving cell for the terminal. A terminal can generally perform a measurement operation for intra- / inter- / inter-RAT frequencies, and performs the measurement operation for a predetermined time (1g-10) at each predetermined measurement period (1g-05). Measuring at each measurement period compared to continuous measurement has the effect of saving power consumption of the terminal. In particular, as the measurement period increases (1g-15), the degree of savings can increase. However, increasing the measurement cycle increases the likelihood that the terminal will miss the timing of switching serving cells, potentially resulting in connection failures or delays. Therefore, a specific measurement cycle value represents a single cell measurement requirement necessary to satisfy a given service quality, and mobile communication standards define this value based on the target service quality.

[0081] FIG. 1h is a diagram for explaining conditions for adjusting cell measurement requirements to save terminal power consumption according to one embodiment of the present disclosure.

[0082] The purpose of a terminal's measurement operation is to support terminal mobility. Therefore, the terminal can selectively perform the measurement operation in areas where inter-cell movement is likely to occur, and suspend the measurement operation or increase the measurement cycle in areas where inter-cell movement is not likely to occur (relaxing cell measurement requirements), thereby conserving its power consumption.

[0083] For example, an LTE or NR mobile communication terminal may determine whether the RSRP (Reference Signal Received Power) (RSRP and RSRQ (Reference Signal Received Quality)) value of the serving cell is greater than a predetermined threshold value and may not perform some of the measurement operations for intra- / inter- / inter-RAT frequencies. For terminals in standby mode or inactive mode, the base station may provide the S_IntraSearch and S_nonIntraSearch values ​​through system information. If the received RSRP value of the serving cell is lower than the S_nonIntraSearch value, the terminal performs the measurement operation for all preset intra- / inter- / inter-RAT frequencies. If the received RSRP value of the serving cell is higher than the S_nonIntraSearch value and lower than the S_IntraSearch value, the terminal performs the measurement operation for intra-frequency and high-priority frequencies, but does not perform the measurement operation for inter- / inter-RAT frequencies. If the reception RSRP value of the serving cell is higher than the S_IntraSearch value, the terminal only performs measurement operation for the high-priority frequency, and does not perform measurement operation for the intra- / inter- / inter-RAT frequency. The base station provides, through system information for the purpose of load balancing, frequency information that terminals in standby mode or inactive mode should measure, along with a priority value for each frequency. A frequency with a priority value higher than the frequency to which the serving cell belongs is called a high-priority frequency. The above method is characterized in that it determines whether the terminal is at the center or edge of the cell based on the reception signal strength of the serving cell, and if the terminal is not at the cell edge where inter-cell movement may be required, it does not perform a predetermined cell measurement operation.

[0084] Measurement relaxation has also been introduced in Rel-16 NR mobile communications. Measurement relaxation refers to the application of relaxed requirements (e.g., longer measurement periods) compared to existing cell measurement requirements (e.g., required measurement periods) to conserve terminal power. Measurement relaxation can be applied when certain conditions are met. These conditions are the "at-cell-edge" condition (1h-25) and the "low mobility" condition (1h-30). A detailed description of these conditions follows.

[0085] To ensure mobility support, the terminal utilizes predetermined cell measurement results. The terminal determines whether to reselect a cell through intra- / inter- / inter-RAT cell measurement operations in standby or inactive mode. In connected mode, the terminal collects preset cell measurement results and reports them to the base station, enabling the base station to determine when to perform a handover.

[0086] However, since the above cell measurement operation consumes power of the terminal, if the terminal is not located in a cell edge area requiring cell reselection or handover and is in a low-speed mobility state, the terminal may suspend some of the intra- / inter- / inter-RAT cell measurement operations or adjust the requirements (measurement cycle, etc.) applied to the operations in a direction that reduces power consumption (such as applying a longer measurement cycle). This is called Relaxed measurement. The terminal applies the formulas in [Table 1] below from the TS 38.304 standard document to determine whether it is in a low-speed mobility state. The formulas below are distinguished depending on whether the terminal is a general terminal or a RedCap (Reduced Capability) terminal.

[0087] [Table 1]

[0088]

[0089] The base station provides the setting values ​​of SSearchDeltaP and TSearchDeltaP to the terminal through system information. The terminal considers itself to be in a state of moving at a low speed if the condition (SrxlevRef - Srxlev) < SSearchDeltaP (or (SrxlevRefStationary - Srxlev) < SSearchDeltaP-Stationary) is satisfied during the predetermined time period TSearchDeltaP (or TSearchDeltaP-Stationary). If the condition is not satisfied, the terminal considers itself to not be in a state of moving at a low speed. On the other hand, if the terminal measures the Srxlev value to be lower by the difference of SSearchDeltaP than the SrxlevRef value determined according to the above formula, and the condition, that is, (SrxlevRef - Srxlev) < SSearchDeltaP (or (SrxlevRefStationary - Srxlev) < SSearchDeltaP-Stationary), is not satisfied during the predetermined time interval TSearchDeltaP (or TSearchDeltaP-Stationary), the terminal sets the SrxlevRef to the Srxlev of the currently measured serving cell.

[0090] The above Srxlev means a value calculated by the following S-criteria considering the received signal strength. That is,

[0091] Srxlev = Q rxlevmeas - (Q rxlevmin + Q rxlevminoffset )- P compensation - Qoffset temp

[0092]

[0093] Similarly, the requirements for the RLM / BFD (Radio Link Monitoring / Beam Failure Detecting) function can be reduced for UE power conservation purposes, depending on the UE's low-speed mobility. To this end, the formulas in [Table 2] from the TS 38.331 standard are applied.

[0094] [Table 2]

[0095]

[0096] The base station provides the configuration values ​​of SSearchDeltaP-Connected and TSearchDeltaP-Connected to the terminal through dedicated signaling. If the condition, that is, (SS-RSRPRef - SS-RSRP) < SSearchDeltaP-Connected, is satisfied during the predetermined time period TSearchDeltaP-Connected, the terminal considers itself to be moving at a low speed. On the other hand, if the SS-RSRP value is measured to be lower by the difference of the SS-RSRPRef value determined according to the above formula by the amount of the SSearchDeltaP-Connected value, and the condition, that is, (SS-RSRPRef - SS-RSRP) < SSearchDeltaP-Connected, is not satisfied during the predetermined time period TSearchDeltaP-Connected, the terminal sets the SS-RSRPRef to the SS-RSRP of the currently measured serving cell.

[0097] Since the above cell measurement operation consumes power of the terminal, if the terminal is not located in a cell edge area requiring cell reselection or handover, the terminal may temporarily suspend some of the intra- / inter- / inter-RAT cell measurement operations or adjust the requirements (measurement cycle, etc.) applied to the operations in a direction that reduces power consumption (such as applying a longer measurement cycle). This is called Relaxed Measurement. At this time, the terminal applies the formulas in [Table 3] below from the TS 38.304 standard document to determine whether it is in a cell edge area. The formulas below are distinguished depending on whether it is a general terminal or a RedCap (Reduced Capability) terminal.

[0098] [Table 3]

[0099]

[0100] The base station provides the terminal with the settings of SSearchThresholdP, SSearchThresholdQ, SSearchThresholdP2, and SSearchThresholdQ2 through system information. The SSearchThresholdP and SSearchThresholdP2 are RSRP-based settings, and the terminal evaluates whether the measured Srxlev value is lower than the settings. If the RSRQ-based settings, SSearchThresholdQ, and SSearchThresholdQ2 are additionally provided, the terminal also evaluates whether the measured Squal value is lower than the settings.

[0101] If the Srxlev value measured by the terminal is greater than the SSearchThresholdP, the terminal may consider that it is not at the cell edge, and may suspend some of the intra- / inter- / inter-RAT cell measurement operations or adjust the requirements applied to the operations in a direction to reduce power consumption. On the other hand, if the Srxlev value measured by the terminal becomes less than the SSearchThresholdP, the terminal considers that it is at the cell edge from the point in time. If the terminal considers that it is at the cell edge, it performs the preset cell measurement operation as before.

[0102] In addition to the above Relaxed measurement, similar terminal operations are standardized. A terminal in standby or inactive mode does not need to perform intra-frequency measurement if the measured Srxlev and Squal values ​​are greater than SIntraSearchP and SIntraSearchQ, respectively, and does not need to perform inter-frequency measurement for a frequency with the same or lower priority than the current serving frequency (or an inter-RAT frequency with a lower priority) if the measured Srxlev and Squal values ​​are greater than SnonIntraSearchP and SnonIntraSearchQ, respectively. The above parameters, SIntraSearchP, SIntraSearchQ, SnonIntraSearchP, and SnonIntraSearchQ, are provided by the base station to the terminal through system information.

[0103] A base station can provide an s-MeasureConfig IE to a terminal in connected mode. The IE includes ssb-RSRP or csi-RSRP configuration values. The terminal measures the SSB or CSI-RS transmitted by the SpCell to derive RSRP, and if the measured RSRP value is greater than the ssb-RSRP or csi-RSRP, the cell measurement operation does not need to be performed.

[0104] In this embodiment, when a predetermined condition that can reduce power consumption is satisfied, the terminal reports a MeasurementReport to the base station by applying a longer period than the reporting period of the preset (event-triggered) periodical reporting.

[0105] In the first method, the base station sets certain conditions to the terminal for the purpose of reducing power consumption of the terminal, and when the conditions are satisfied, the terminal applies a preset or defined longer cell measurement reporting period.

[0106] The second method is characterized in that, based on a terminal request, the base station uses new L1 signaling or MAC CE to reset a preset or defined longer cell measurement reporting period for the purpose of reducing terminal power consumption.

[0107] FIG. 1i is a flowchart of a first process for reporting cell measurement results for UE power saving according to one embodiment of the present disclosure.

[0108] The terminal (1i-05) reports its capability information to the base station (1i-10) (1i-15). The capability information includes an indicator indicating that the reporting cycle of (event-triggered) periodical reporting can be dynamically changed for the purpose of reducing the terminal's power consumption.

[0109] The base station can configure the terminal to report its own preferences to the terminal through a predetermined RRC message, RRCReconfiguration (1i-20). The terminal recognizes that it needs to save power consumption (1i-25). The terminal reports to the base station that it needs to reduce power consumption using a predetermined RRC message, UEAssistanceInformation (1i-30). More specifically, the terminal can report its preferred cell measurement reporting cycle information to the base station. At this time, the terminal can report to the base station an absolute value of the preferred cycle or a scaling factor value compared to the currently configured cycle (or a predefined default cycle). The base station, upon receiving the report, determines to dynamically relax the preset cell measurement reporting cycle according to predetermined conditions (1i-35). The base station transmits cell measurement configuration information including condition(s) applicable to changing the cell measurement reporting cycle to the terminal (1i-40). The above cell measurement configuration information may include cell measurement reporting cycle information (e.g., default reporting cycle) that the terminal should apply in a normal state and cell measurement reporting cycle information (absolute value or scaling factor compared to the default reporting cycle, 2 times, 4 times, etc.) that should be applied in a state where the above-described condition is satisfied, i.e., UE power saving state. As the above-described condition, all or part of the conditions applied to the measurement relaxation described above may be reused. When the above-described preset condition is satisfied, the terminal may apply a longer cycle compared to the previously applied reporting cycle (or default reporting cycle) (1i-45). The longer cycle may be set as an absolute value or a scaling factor compared to a specific reporting cycle (the previously applied reporting cycle or default reporting cycle) (1i-50).The terminal periodically transmits a MeasurementReport message using the longer period (1i-55, 1i-60, 1i-65). If the preset condition is no longer satisfied (1i-70), the terminal periodically transmits a MeasurementReport message using the previous reporting period or the default reporting period.

[0110] FIG. 1j is a flowchart of a second process for reporting cell measurement results for UE power saving according to one embodiment of the present disclosure.

[0111] The terminal (1j-05) reports its capability information to the base station (1j-10) (1j-15). The capability information includes an indicator indicating that the reporting cycle of (event-triggered) periodical reporting can be dynamically changed for the purpose of reducing the terminal's power consumption.

[0112] The base station can configure the terminal to report its own preferences through a predetermined RRC message, RRCReconfiguration (1j-20). The terminal recognizes that it needs to save power consumption (1j-25). The terminal reports to the base station that it needs to save power consumption using a predetermined RRC message, UEAssistanceInformation (1j-30). More specifically, the terminal can report preferred cell measurement reporting cycle information to the base station. At this time, the terminal can report to the base station an absolute value of the preferred cycle or a scaling factor value compared to the currently configured cycle. The base station, upon receiving the report, determines to dynamically relax the preset cell measurement reporting cycle according to predetermined conditions (1j-35). The base station can transmit cell measurement configuration information including one or more cell measurement reporting cycle values ​​to the terminal (1j-40). Alternatively, an indicator indicating that the reporting cycle can be dynamically changed according to L1 signaling or MAC CE may be included. One of the above-described set periodic values ​​may be a default reporting period. The default reporting period may be a value applied by the terminal when receiving cell measurement configuration information. The terminal recognizes that it needs to save power consumption (1j-45). The terminal reports to the base station that it needs to save power consumption using a predetermined RRC message, UEAssistanceInformation (1j-50). The base station may instruct the terminal to apply a longer period using new L1 signaling or MAC CE (1j-55). The signaling may include information on the reporting period that the terminal should apply.For example, the scaling factor value may be included compared to the default period, or indicator information indicating one of the multiple preset reporting periods may be included. Upon receiving the information, the terminal applies a new reporting period (1j-60) and transmits a MeasurementReport message to the base station.

[0113] FIG. 1k is a flowchart of a terminal operation for reporting cell measurement results for UE power saving according to one embodiment of the present disclosure.

[0114] In step 1k-05, the terminal reports its capability information to the base station. This capability information includes an indicator indicating that the reporting cycle of (event-triggered) periodical reporting can be dynamically changed based on predetermined conditions or L1 signaling or MAC CE received from the base station, to reduce the terminal's power consumption.

[0115] At step 1k-10, the terminal transmits its preferred value for the periodic value of the periodic cell measurement report to the base station.

[0116] In step 1k-15, the terminal receives reporting relaxation-related configuration information from the base station. The configuration information may include one or more relaxation conditions and a cycle value(s) applicable when the conditions are satisfied. Alternatively, the terminal may include an indicator indicating that the base station can dynamically change the reporting cycle by transmitting L1 signaling or MAC CE.

[0117] In step 1k-20, the terminal applies configuration information to the received periodic cell measurement report. At this time, the terminal may apply a predetermined default reporting cycle.

[0118] At step 1k-25, the terminal recognizes that the preset relaxation condition is satisfied. Alternatively, the base station may reset a longer reporting period to the terminal using L1 signaling or MAC CE.

[0119] At step 1k-30, the terminal applies a longer, more relaxed reporting period than previously set.

[0120] At step 1k-35, the terminal recognizes that the preset relaxation condition is no longer satisfied. Alternatively, the base station may reset the default reporting period to the terminal using L1 signaling or MAC CE.

[0121] At step 1k-40, the terminal reapplies the default reporting cycle.

[0122] FIG. 11 is a flowchart of a base station operation for reporting cell measurement results for UE power saving according to one embodiment of the present disclosure.

[0123] In step 1l-05, the base station receives capability information from the terminal. The capability information includes an indicator indicating that the reporting cycle of (event-triggered) periodical reporting can be dynamically changed according to predetermined conditions or L1 signaling or MAC CE received from the base station for the purpose of reducing power consumption of the terminal.

[0124] In step 1l-10, the base station receives from the terminal a periodic value of a periodic cell measurement report preferred by the terminal.

[0125] In step 1l-15, the base station transmits reporting relaxation related configuration information to the terminal.

[0126] In step 1l-20, the base station receives a MeasurementReport from the terminal at default intervals.

[0127] In step 1l-25, the base station receives a MeasurementReport from the terminal at each longer relaxed reporting period. This means that the base station has indicated this through L1 signaling or MAC CE, or that the relaxation condition set by the base station has been satisfied.

[0128] [Correction under Rule 91 21.07.2025] Figure 1m is a block diagram showing the internal structure of a terminal according to one embodiment of the present disclosure.

[0129] [Revised 21.07.2025 under Article 91 of the Rules] Referring to the above drawing, the terminal includes an RF (Radio Frequency) processing unit (1m-10), a baseband processing unit (1m-20), a storage unit (1m-30), and a control unit (1m-40).

[0130] [Revised 21.07.2025 by Article 91 of the Rules] The RF processing unit (1m-10) performs functions for transmitting and receiving signals through a wireless channel, such as signal band conversion and amplification. That is, the RF processing unit (1m-10) up-converts the baseband signal provided from the baseband processing unit (1m-20) into an RF band signal and transmits it through an antenna, and down-converts the RF band signal received through the antenna into a baseband signal. For example, the RF processing unit (1m-10) may include a transmission filter, a reception filter, an amplifier, a mixer, an oscillator, a digital to analog convertor (DAC), an analog to digital convertor (ADC), etc. In the drawing, only one antenna is shown, but the terminal may be equipped with multiple antennas. In addition, the RF processing unit (1m-10) may include multiple RF chains. Furthermore, the RF processing unit (1m-10) can perform beamforming. For the beamforming, the RF processing unit (1m-10) can adjust the phase and magnitude of each signal transmitted and received through multiple antennas or antenna elements. In addition, the RF processing unit can perform MIMO, and can receive multiple layers when performing the MIMO operation.

[0131] [Revised 21.07.2025 by Article 91 of the Rules] The baseband processing unit (1m-20) performs a conversion function between a baseband signal and a bit stream according to the physical layer specifications of the system. For example, when transmitting data, the baseband processing unit (1m-20) generates complex symbols by encoding and modulating the transmission bit stream. In addition, when receiving data, the baseband processing unit (1m-20) restores the reception bit stream by demodulating and decoding the baseband signal provided from the RF processing unit (1m-10). For example, in the case of OFDM (orthogonal frequency division multiplexing), when transmitting data, the baseband processing unit (1m-20) generates complex symbols by encoding and modulating a transmission bit stream, maps the complex symbols to subcarriers, and then configures OFDM symbols through an inverse fast Fourier transform (IFFT) operation and a cyclic prefix (CP) insertion. In addition, when receiving data, the baseband processing unit (1m-20) divides the baseband signal provided from the RF processing unit (1m-10) into OFDM symbol units, restores signals mapped to subcarriers through an FFT (fast Fourier transform) operation, and then restores the received bit stream through demodulation and decoding.

[0132] [Revised 21.07.2025 by Article 91 of the Rules] The baseband processing unit (1m-20) and the RF processing unit (1m-10) transmit and receive signals as described above. Accordingly, the baseband processing unit (1m-20) and the RF processing unit (1m-10) may be referred to as a transmitter, a receiver, a transceiver, or a communication unit. Furthermore, at least one of the baseband processing unit (1m-20) and the RF processing unit (1m-10) may include a plurality of communication modules to support a plurality of different wireless access technologies. In addition, at least one of the baseband processing unit (1m-20) and the RF processing unit (1m-10) may include different communication modules to process signals of different frequency bands. For example, the different wireless access technologies may include wireless LAN (e.g., IEEE 802.11), cellular networks (e.g., LTE), etc. Additionally, the different frequency bands may include super high frequency (SHF) (e.g., 2.NRHz, NRhz) bands, millimeter wave (mm wave) (e.g., 60GHz) bands.

[0133] [Revised 21.07.2025 under Article 91 of the Rules] The storage unit (1m-30) stores data such as basic programs, application programs, and setting information for the operation of the terminal. In particular, the storage unit (1m-30) can store information related to a second access node that performs wireless communication using a second wireless access technology. In addition, the storage unit (1m-30) provides the stored data upon request from the control unit (1m-40).

[0134] [Revised 21.07.2025 by Article 91 of the Rules] The control unit (1m-40) controls the overall operations of the terminal. For example, the control unit (1m-40) transmits and receives signals through the baseband processing unit (1m-20) and the RF processing unit (1m-10). In addition, the control unit (1m-40) records and reads data in the storage unit (1m-40). For this purpose, the control unit (1m-40) may include at least one processor. For example, the control unit (1m-40) may include a communication processor (CP) that performs control for communication and an application processor (AP) that controls upper layers such as application programs. The control unit (1m-40) may include a multi-connection processing unit (1m-42).

[0135] [Revised 21.07.2025 under Rule 91] Figure 1n is a block diagram showing the configuration of a base station according to one embodiment of the present disclosure.

[0136] [Revised 21.07.2025 by Article 91 of the Rules] As shown in the above drawing, the base station is configured to include an RF processing unit (1n-10), a baseband processing unit (1n-20), a backhaul communication unit (1n-30), a storage unit (1n-40), and a control unit (1n-50).

[0137] [Revised 21.07.2025 by Article 91 of the Rules] The RF processing unit (1n-10) performs functions for transmitting and receiving signals through a wireless channel, such as signal band conversion and amplification. That is, the RF processing unit (1n-10) up-converts the baseband signal provided from the baseband processing unit (1n-20) into an RF band signal and transmits it through an antenna, and down-converts the RF band signal received through the antenna into a baseband signal. For example, the RF processing unit (1n-10) may include a transmission filter, a reception filter, an amplifier, a mixer, an oscillator, a DAC, an ADC, etc. In the drawing, only one antenna is shown, but the first access node may have multiple antennas. In addition, the RF processing unit (1n-10) may include multiple RF chains. Furthermore, the RF processing unit (1n-10) may perform beamforming. For the above beamforming, the RF processing unit (1n-10) can adjust the phase and magnitude of each signal transmitted and received through multiple antennas or antenna elements. The RF processing unit can perform a downlink MIMO operation by transmitting one or more layers.

[0138] [Revised 21.07.2025 by Article 91 of the Rules] The baseband processing unit (1n-20) performs a conversion function between a baseband signal and a bit stream according to the physical layer specifications of the first wireless access technology. For example, when transmitting data, the baseband processing unit (1n-20) generates complex symbols by encoding and modulating a transmission bit stream. In addition, when receiving data, the baseband processing unit (1n-20) restores the reception bit stream by demodulating and decoding the baseband signal provided from the RF processing unit (1n-10). For example, in the case of OFDM, when transmitting data, the baseband processing unit (1n-20) generates complex symbols by encoding and modulating a transmission bit stream, maps the complex symbols to subcarriers, and then configures OFDM symbols through IFFT operation and CP insertion. In addition, when receiving data, the baseband processing unit (1n-20) divides the baseband signal provided from the RF processing unit (1n-10) into OFDM symbol units, restores signals mapped to subcarriers through FFT operation, and then restores the received bit string through demodulation and decoding. The baseband processing unit (1n-20) and the RF processing unit (1n-10) transmit and receive signals as described above. Accordingly, the baseband processing unit (1n-20) and the RF processing unit (1n-10) may be referred to as a transmitter, a receiver, a transceiver, a communication unit, or a wireless communication unit.

[0139] [Revised 21.07.2025 by Article 91 of the Rules] The backhaul communication unit (1n-30) provides an interface for communicating with other nodes within the network. That is, the backhaul communication unit (1n-30) converts a bit string transmitted from the main base station to another node, such as an auxiliary base station or core network, into a physical signal, and converts a physical signal received from the other node into a bit string.

[0140] [Revised 21.07.2025 by Article 91 of the Rules] The storage unit (1n-40) stores data such as basic programs, application programs, and setting information for the operation of the main base station. In particular, the storage unit (1n-40) can store information on bearers assigned to connected terminals, measurement results reported from connected terminals, and the like. In addition, the storage unit (1n-40) can store information that serves as a judgment criterion for whether to provide or terminate multiple connections to a terminal. In addition, the storage unit (1n-40) provides the stored data at the request of the control unit (1n-50).

[0141] [Revised 21.07.2025 by Article 91 of the Rules] The control unit (1n-50) controls the overall operations of the main base station. For example, the control unit (1n-50) transmits and receives signals through the baseband processing unit (1n-20) and the RF processing unit (1n-10) or through the backhaul communication unit (1n-30). In addition, the control unit (1n-50) records and reads data in the storage unit (1n-40). For this purpose, the control unit (1n-50) may include at least one processor. The control unit (1n-50) may include a multi-connection processing unit (1n-52).

[0142] The methods according to the embodiments described in the claims or specification of the present disclosure may be implemented in the form of hardware, software, or a combination of hardware and software.

[0143] When implemented in software, a computer-readable storage medium storing one or more programs (software modules) may be provided. The one or more programs stored in the computer-readable storage medium are configured for execution by one or more processors within an electronic device. The one or more programs include instructions that cause the electronic device to execute methods according to the embodiments described in the claims or specification of the present disclosure.

[0144] These programs (software modules, software) may be stored in random access memory, non-volatile memory including flash memory, read only memory (ROM), electrically erasable programmable read only memory (EEPROM), magnetic disc storage device, compact disc ROM (CD-ROM), digital versatile discs (DVDs) or other forms of optical storage device, magnetic cassette. Or, they may be stored in a memory configured as a combination of some or all of these. In addition, each configuration memory may be included in multiple numbers.

[0145] Additionally, the program may be stored in an attachable storage device that is accessible via a communication network such as the Internet, an intranet, a local area network (LAN), a wide local area network (WLAN), a storage area network (SAN), or a combination thereof. Such a storage device may be connected to a device performing an embodiment of the present disclosure via an external port. Additionally, a separate storage device on the communication network may be connected to a device performing an embodiment of the present disclosure.

[0146] In the specific embodiments of the present disclosure described above, components included in the invention are expressed in the singular or plural form, depending on the specific embodiment presented. However, the singular or plural expressions are selected to suit the presented situation for convenience of explanation, and the present disclosure is not limited to singular or plural components. Components expressed in the plural form may be composed of singular elements, or components expressed in the singular form may be composed of plural elements.

[0147] While the detailed description of this disclosure has described specific embodiments, it should be understood that various modifications are possible without departing from the scope of this disclosure. Therefore, the scope of this disclosure should not be limited to the described embodiments, but should be defined not only by the scope of the claims described below, but also by equivalents thereof.

[0148] Meanwhile, the embodiments of the present disclosure disclosed in this specification and drawings are merely specific examples to easily explain the technical contents of the present disclosure and to help the understanding of the present disclosure, and are not intended to limit the scope of the present disclosure. In other words, it will be apparent to those skilled in the art that other modified examples based on the technical idea of ​​the present disclosure are possible. In addition, each of the above embodiments can be combined and operated with each other as needed. For example, parts of one embodiment of the present disclosure and another embodiment can be combined with each other to operate a base station and a terminal. In addition, other modified examples based on the technical idea of ​​the above embodiments can be implemented in various systems such as an FDD LTE system, a TDD LTE system, a 5G or NR system, etc.

[0149] Meanwhile, the order of description in the drawings explaining the method of the present invention does not necessarily correspond to the order of execution, and the order of precedence may be changed or executed in parallel.

[0150] Alternatively, the drawings illustrating the method of the present invention may omit some components and include only some components within a scope that does not harm the essence of the present invention.

[0151] In addition, the method of the present invention may be implemented by combining some or all of the contents included in each embodiment within a scope that does not harm the essence of the invention.

[0152] Various embodiments of the present disclosure have been described above. The foregoing description of the present disclosure is for illustrative purposes only, and the embodiments of the present disclosure are not limited to the disclosed embodiments. Those skilled in the art will appreciate that the present disclosure can be readily modified into other specific forms without altering the technical spirit or essential characteristics of the present disclosure. The scope of the present disclosure is indicated by the claims described below rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present disclosure.

Claims

1. In a method performed by a terminal in a wireless communication system, A step of transmitting first capability information to a base station, the first indicator including a first indicator indicating that the terminal can receive and apply RRC (Radio Resource Control) signaling in which multiple report setting information can be mapped to one measurement ID; A step of receiving a first RRC message from the base station, the first setting information including the plurality of report setting information mapped to the one measurement ID; A step of determining whether multiple report conditions corresponding to the above multiple report setting information are satisfied; and A method comprising the step of transmitting a measurement report message to the base station when it is determined that the above multiple reporting conditions are satisfied.

2. In paragraph 1, A step of transmitting second capability information to the base station, the second capability information including a second indicator indicating that the reporting cycle can be changed; a step of transmitting a preference value for the above reporting cycle to the base station; and A method further comprising the step of receiving a second RRC message from the base station, the second RRC message including second configuration information related to reporting mitigation.

3. In paragraph 2, The above second setting information includes a relaxation condition of the reporting cycle, A method further comprising the step of transmitting the measurement report message to the base station based on the relaxed reporting cycle when it is determined that the above relaxation condition is satisfied.

4. In paragraph 2, The second setting information includes a third indicator indicating that the reporting cycle may be changed according to signaling of the base station, A step of receiving an instruction to apply a relaxed reporting cycle from the base station via L1 signaling or MAC (Medium Access Control) CE (Control Element); and A method further comprising the step of transmitting the measurement report message to the base station based on the relaxed reporting cycle.

5. In paragraph 3, A method further comprising the step of transmitting the measurement report message to the base station based on a default reporting cycle when it is determined that the above relaxation condition is not satisfied.

6. In paragraph 4, A step of receiving an instruction to apply a default reporting cycle from the base station through the L1 signaling or the MAC CE; and A method further comprising the step of transmitting the measurement report message to the base station based on the default reporting cycle.

7. In paragraph 3, A method wherein the above relaxation condition includes at least one of a first condition in which the terminal is located in a cell boundary area and a second condition in which the terminal is in a low-speed movement state.

8. In a wireless communication system, the terminal, Transmitter and receiver; and At least one processor coupled to the transceiver, At least one processor, The terminal transmits to the base station first capability information including a first indicator indicating that the terminal can receive and apply RRC (Radio Resource Control) signaling in which multiple report setting information can be mapped to one measurement ID, Receive a first RRC message from the base station, which includes first configuration information in which the plurality of report configuration information are mapped to the one measurement ID; Determine whether multiple report conditions corresponding to the above multiple report setting information are satisfied, A terminal that transmits a measurement report message to the base station when it is determined that the above multiple reporting conditions are satisfied.

9. In paragraph 8, At least one processor, Transmitting second capability information to the base station, including a second indicator indicating that the reporting cycle can be changed; Transmitting the preferred value for the above reporting cycle to the above base station, A terminal receiving a second RRC message from the base station, the second RRC message including second configuration information related to reporting and mitigation.

10. In paragraph 9, The above second setting information includes a relaxation condition of the reporting cycle, At least one processor, A terminal that transmits the measurement report message to the base station based on the relaxed reporting cycle when it is determined that the above relaxation condition is satisfied.

11. In paragraph 9, The second setting information includes a third indicator indicating that the reporting cycle may be changed according to signaling of the base station, At least one processor, Receive an instruction from the base station to apply a relaxed reporting cycle through L1 signaling or MAC (Medium Access Control) CE (Control Element), A terminal that transmits the measurement report message to the base station based on the relaxed reporting cycle.

12. In paragraph 10, At least one processor, A terminal that transmits the measurement report message to the base station based on the default reporting cycle when it is determined that the above relaxation condition is not satisfied.

13. In paragraph 11, At least one processor, Receive an instruction to apply a default reporting cycle from the base station via the L1 signaling or the MAC CE; A terminal that transmits the measurement report message to the base station based on the above default reporting cycle.

14. In paragraph 10, A terminal wherein the above relaxation conditions include at least one of a first condition that the terminal is located in a cell boundary area and a second condition that the terminal is in a low-speed movement state.

15. In a wireless communication system, the base station is Transmitter and receiver; and At least one processor coupled to the transceiver, At least one processor, Receive first capability information from the terminal, including a first indicator indicating that the terminal can receive and apply RRC (Radio Resource Control) signaling in which multiple report setting information can be mapped to one measurement ID; Transmitting a first RRC message including first setting information in which the plurality of report setting information are mapped to the one measurement ID to the terminal, A base station that receives a measurement report message from the terminal when multiple report conditions corresponding to the above multiple report setting information are satisfied.

Images